Abstract

The invention relates to a nonwoven unit comprising at least one nonwoven layer having at least one first layer and at least one second layer. The second layer is in the form of a nonwoven layer composed of continuous filaments. The average pore size of pores formed in the first layer is smaller than the average pore size of the pores between the filaments of the second layer. The second layer has functional particles which are embedded in the pores between the filaments of the second layer. The first layer forms a barrier preventing the penetration of particles or functional particles having a size greater than 150 μm.

IPC Classes  ?

• B32B 5/26 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by the presence of two or more layers which comprise fibres, filaments, granules, or powder, or are foamed or specifically porous one layer being a fibrous or filamentary layer another layer also being fibrous or filamentary
• B32B 5/02 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by structural features of a layer comprising fibres or filaments
• B32B 7/02 - Physical, chemical or physicochemical properties
• B32B 37/24 - Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with at least one layer not being coherent before laminating, e.g. made up from granular material sprinkled onto a substrate
• B32B 38/08 - Impregnating
• D04H 3/018 - Non woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the shape
• D04H 3/147 - Composite yarns or filaments
• D04H 3/16 - Non woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic yarns or filaments produced by welding with bonds between thermoplastic filaments produced in association with filament formation, e.g. immediately following extrusion

Abstract

A film blowing machine for producing a film web from a recycled material having ⋅a.-an extruder for melting and homogenizing the recycled material into a melt, ⋅b. an annular die for extruding a film tube, ⋅c. a guide for a melt flow between the extruder and the annular die via an annular die melt pump, for conveying the melt to the annular die, ⋅d. a tube-forming zone for longitudinal and transverse drawing of the film tube, ⋅e. a cooling means for the film tube moving in the machine direction, ⋅f. a flattening unit on the other side of the tube-forming zone for flattening the film tube into a double layer film web, ⋅g. a pair of draw-off rollers on the other side of the cooling means for drawing off the film tube, and ⋅h. the extruder is designed as a twin-screw extruder.

IPC Classes  ?

• B29C 48/00 - Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired formApparatus therefor
• B29C 48/08 - Flat, e.g. panels flexible, e.g. films
• B29C 48/69 - Filters or screens for the moulding material
• B29C 48/76 - Venting meansDegassing means
• B29C 48/92 - Measuring, controlling or regulating
• B29C 55/28 - Shaping by stretching, e.g. drawing through a dieApparatus therefor of blown tubular films, e.g. by inflation
• B29K 105/26 - Scrap

Abstract

The invention relates to nonwoven fabric sheets containing crimped multicomponent fibers.

IPC Classes  ?

• D04H 3/007 - Addition polymers
• B32B 5/02 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by structural features of a layer comprising fibres or filaments
• B32B 5/26 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by the presence of two or more layers which comprise fibres, filaments, granules, or powder, or are foamed or specifically porous one layer being a fibrous or filamentary layer another layer also being fibrous or filamentary
• D01F 1/10 - Other agents for modifying properties
• D01F 8/06 - Conjugated, i.e. bi- or multicomponent, man-made filaments or the likeManufacture thereof from synthetic polymers with at least one polyolefin as constituent
• D04H 3/018 - Non woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the shape
• D04H 3/16 - Non woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic yarns or filaments produced by welding with bonds between thermoplastic filaments produced in association with filament formation, e.g. immediately following extrusion

Abstract

A nonwoven laminate has a first spunbonded nonwoven web formed by crimped multicomponent filaments having a degree of crimp of more than 2.5 loops per om of their length and a second spunbonded nonwoven web formed by continuous filaments having only one elastomer based on polypropylene with a mesopentad fraction of more than 70%.

IPC Classes  ?

• D04H 3/16 - Non woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic yarns or filaments produced by welding with bonds between thermoplastic filaments produced in association with filament formation, e.g. immediately following extrusion
• D04H 3/005 - Synthetic yarns or filaments

Abstract

Method for producing a nonwoven fabric from fibres. Continuous filaments are produced from thermoplastic material by at least one meltblown spinneret. Chopped pulp fibres are also produced by at least one pulping device. In the pulping device, at least one chopped-fibre/air stream is produced from the chopped pulp fibres, is passed through and discharged from an outlet channel and flows with an initial volumetric flow V1 and a flow direction S1 in the direction of an air-permeable depositing screen belt. The continuous filaments flow from the at least one meltblown spinneret as a filament/air stream with an initial volumetric flow V2 in the direction of the chopped-fibre/air stream. The filament/air stream and the chopped-fibre/air stream are brought together above the depositing screen belt in a contact zone and deposited as a mixture of continuous filaments and chopped fibres in a depositing region on the depositing screen belt to form the nonwoven fabric or nonwoven web. In the depositing region of the fibres or of the mixture of continuous filaments and chopped fibres, air or process air is sucked through the depositing screen belt from below with a volumetric flow V4. The volumetric flow V4 is greater than the sum of the volumetric flows V1 and V2.

IPC Classes  ?

• D04H 5/02 - Non woven fabrics formed of mixtures of relatively short fibres and yarns or like filamentary material of substantial length strengthened or consolidated by mechanical methods, e.g. needling
• D04H 3/16 - Non woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic yarns or filaments produced by welding with bonds between thermoplastic filaments produced in association with filament formation, e.g. immediately following extrusion
• D04H 5/08 - Non woven fabrics formed of mixtures of relatively short fibres and yarns or like filamentary material of substantial length characterised by the method of forming fleeces or layers, e.g. reorientation of fibres or yarns

Goods & Services

Machines, parts thereof and installations composed thereof for manufacturing spunbonds; machines, parts thereof and installations composed thereof for manufacturing non-woven fabrics; machines, parts thereof and installations composed thereof for manufacturing meltblown fibers and meltblown non-wovens; machines, parts thereof and installations composed thereof for the treatment and processing of spunbonds, non-woven fabrics, meltblown fibers and meltblown non-wovens; machines, parts thereof and installations composed thereof for the treatment and processing of plastics; machines and machine tools, parts thereof and installations composed thereof for material processing and manufacturing; parts and accessories for all the aforementioned goods, as far as included in this class Electric and electronic control, measuring and regulating devices for machines for manufacturing spunbonds, machines for manufacturing non-woven fabrics, machines for manufacturing meltblown fibers and meltblown non-wovens, machines for the treatment and processing of plastics as well as machines and machine tools for material processing and manufacturing; material testing instruments and machines; calibrating apparatus; weighing, measuring, signalling and regulating apparatus and instruments; apparatus and instruments for conducting, switching, transforming, accumulating, regulating and controlling electricity; mobile apps; software; parts and accessories for all the aforementioned goods, as far as included in this class Installation, servicing, maintenance and repair of machines and their parts, including conversion, modification and extension of machines, in particular machines, parts thereof and installations composed thereof for manufacturing spunbonds, machines, parts thereof and installations composed thereof for manufacturing non-woven fabrics, machines, parts thereof and installations composed thereof for manufacturing meltblown fibers and meltblown non-wovens, machines, parts thereof and installations composed thereof for the treatment and processing of spunbonds, non-woven fabrics, meltblown fibers and meltblown non-wovens, machines, parts thereof and installations composed thereof for the treatment and processing of plastics, machines and machine tools, parts thereof and installations composed thereof for material processing and manufacturing; consultancy and information relating to the aforementioned services, as far as included in this class Conceptual design and construction drafting of machines for manufacturing spunbonds, machines for manufacturing non-woven fabrics, machines for manufacturing meltblown fibers and meltblown non-wovens, machines for the treatment and processing of plastics as well as machines and machine tools for material processing and manufacturing; technical consultancy relating to the application and use of machines and parts thereof for manufacturing spunbonds, non-woven fabrics, meltblown fibers and meltblown non-wovens; technical consultancy relating to the application and use of machines for the treatment and processing of plastics as well as machines and machine tools for material processing and manufacturing; technical consultancy in the field of machine construction; software development; engineering services; surveying; technical research; mechanical research; research and development of new products for others; construction drafting; material testing; quality control; technical project studies; quality control of raw materials; scientific research; commissioning of machines and their parts, including conversion, modification and extension of machines, in particular machines, parts thereof and installations composed thereof for manufacturing spunbonds, machines, parts thereof and installations composed thereof for manufacturing non-woven fabrics, machines, parts thereof and installations composed thereof for manufacturing meltblown fibers and meltblown non-wovens, machines, parts thereof and installations composed thereof for the treatment and processing of spunbonds, non-woven fabrics, meltblown fibers and meltblown non-wovens, machines, parts thereof and installations composed thereof for the treatment and processing of plastics, machines and machine tools, parts thereof and installations composed thereof for material processing and manufacturing; consultancy and information relating to the aforementioned services, as far as included in this class

Goods & Services

Non-woven fabrics; non-woven reinforcing fabrics; textile goods, and substitutes for textile goods; filter materials made of textiles, namely filter fleece; non-woven textile fabrics; non-woven fabrics of synthetic fibers; polypropylene spunbonded non-woven textile fabrics; non-woven fabrics for the production of protective masks; spunbonded non-woven fabrics; meltblown non-woven fabrics Conceptual design and construction drafting of machines for manufacturing spunbonds, machines for manufacturing non-woven fabrics, machines for manufacturing meltblown fibers and meltblown non-wovens, machines for the treatment and processing of plastics as well as machines and machine tools for material processing and manufacturing; technical application consultancy for machines and parts thereof for manufacturing spunbonds, non-woven fabrics, meltblown fibers and meltblown non-wovens; technical application consultancy for machines for the treatment and processing of plastics as well as machines and machine tools for material processing and manufacturing; technical consultancy in the field of machine construction; engineering services; surveying; technical research; mechanical research; research and development of new products for others; construction drafting; material testing; quality control; technical project studies; scientific research; consultancy and information relating to the aforementioned services, as far as included in this class

Abstract

The invention relates to a melt conductor (1), in particular a melt distributor or melt mixer, for an extruding die (2) of an extrusion facility (3), comprising a melt conductor block (4) with a multi-channel system (5), the multi-channel system (5) being arranged inside the melt conductor block (4) with three-dimensional extension and having at least one input (6) and at least one output (7) for polymer melt, between one input (6) and one output (7) fluidically connected to the input (6) several branchings (8) arranged in series and several levels (9a) of sub-branches (10) being formed over several levels (12a, 12b) of divided melt channels (11a, 11b); with m melt channels (11a) of the ath level (12a) with Xth local cross-sections and n melt channels (11b) of the bth level (12b) with yth local cross-sections being present, wherein n>m if b>a, the yth local cross-sections of the melt channels (11b) of the bth level (12b) being smaller than the Xth local cross-sections of the melt channels (11a) of the ath level (12a). The invention further relates to an extruding die, an extrusion facility and to a method of operating the extrusion facility.

IPC Classes  ?

• B29C 48/25 - Component parts, details or accessoriesAuxiliary operations
• B29C 48/30 - Extrusion nozzles or dies
• B29C 48/36 - Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
• B29C 48/70 - Flow dividers, e.g. breaker plates comprising means for dividing, distributing and recombining melt flows

Abstract

An apparatus for making filaments has a spinneret plate having a row of holes from which emerge filaments. A manifold distributes a supplied plastic melt over a starting spinning width. A filter plate is downstream of the manifold. A pack of distributor plates is downstream of the filter plate. The distributor plates each have a plurality of distributor holes distributed over a manifold width. The distributor holes receive the plastic melt emerging from the filter plate. The spinneret plate is downstream of the distributor-plate pack and has a row of spinneret passages extending over a final spinning width aligned with the spinneret holes. An output face of the filter plate turned toward the distributor-plate pack and/or an inlet face of the spinneret plate turned toward the distributor-plate pack is curved or crowned at least in sections.

IPC Classes  ?

• D01D 4/02 - Spinnerettes
• D01D 1/10 - Filtering or de-aerating the spinning solution or melt
• D01D 4/06 - Distributing spinning solution or melt to spinning nozzles

Abstract

The invention relates to a process for producing a film having at least one layer that has a polymer blend comprising at least a first polymer and a second polymer, characterised in that at least two of the polymers involved are incompatible with one another, and in that the polymer blend is processed in an extruder. The invention also relates to a film comprising at least one layer that has a polymer blend comprising at least a first polymer and a second polymer, characterised in that at least two of the polymers involved are incompatible with one another. The invention also relates to a plastic-forming line, in particular a blown-film line or flat-film extrusion line, for producing a film having at least one layer that has a polymer blend comprising at least a first polymer and a second polymer, characterised in that at least two of the polymers involved are incompatible with one another.

IPC Classes  ?

• B29C 48/00 - Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired formApparatus therefor
• B29C 48/05 - Filamentary, e.g. strands
• B29C 48/08 - Flat, e.g. panels flexible, e.g. films

Abstract

A melt cooler (800, 810) for a blown-film installation with a film-bubble guide, wherein the film-bubble guide has a central passage for a film bubble (600) that passes through the melt cooler (800, 810) during the operation of the blown-film installation, wherein the melt cooler (800, 810) has a cooling-fluid guide (826, 830), which is designed to deliver cooling fluid introduced into the cooling-fluid guide (826, 830) to the film bubble (600) that passes through the melt cooler (800, 810) during the operation of the blown-film installation, wherein the cooling-fluid guide (826, 830) has a manifold (810, 812, 820), which has a cooling-fluid outlet for delivering the fluid, and the cooling-fluid outlet delivers the cooling fluid to the passage. An installation for moulding plastics, especially a blown-film installation or flat-film installation or some other installation designed for producing a film web, with a treatment section and a melt cooler (800, 810). A method for cooling a melt of a film bubble of a blown-film installation with a melt cooler (800, 810).

IPC Classes  ?

• B29C 48/90 - Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article
• B29C 48/88 - Thermal treatment of the stream of extruded material, e.g. cooling

Abstract

The invention relates to a film processing line for producing a plastic film web, in particular a cast film, calendar or blown film line, comprising the following features: a. the film processing line is provided with a machine unit along which the film web is transported via the film processing line, and b. the film processing line is provided with a roller unit that processes the film material, and c. the roller unit is provided with at least one film roller that is in contact with the film web; characterised by the following other feature: d. the film processing line is provided with a cleaning unit, with which a surface of at least one film roller of the roller unit in contact with the film web can be cleaned in an operating state. The invention also relates to a cleaning unit for a film processing line according to the invention, and methods for cleaning components of film processing lines for producing a film web.

IPC Classes  ?

• B29C 48/88 - Thermal treatment of the stream of extruded material, e.g. cooling
• B29C 48/27 - CleaningPurgingAvoiding contamination
• B29C 48/08 - Flat, e.g. panels flexible, e.g. films
• B29C 48/10 - Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels flexible, e.g. blown foils
• B29C 48/355 - Conveyors for extruded articles

Abstract

The invention relates to a film processing line for producing a plastic film web, in particular a cast film, calendar or blown film line, comprising the following features: a) the film processing line is provided with a machine unit along which the film web is transported via the film processing line; and b) the film processing line is provided with a roller unit that processes the film material; and c) the roller unit is provided with at least one film roller that is in contact with the film web; characterised by the following other feature: d) the film processing line is provided with a cleaning unit, with which a surface of at least one film roller of the roller unit in contact with the film web can be cleaned in an operating state. The invention also relates to a cleaning unit for a film processing line according to the invention, and methods for cleaning components of film processing lines for producing a film web.

IPC Classes  ?

• B29C 48/88 - Thermal treatment of the stream of extruded material, e.g. cooling
• B29C 48/27 - CleaningPurgingAvoiding contamination
• B29C 48/08 - Flat, e.g. panels flexible, e.g. films
• B29C 48/10 - Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels flexible, e.g. blown foils
• B29C 48/355 - Conveyors for extruded articles

Abstract

Melt conductor (1), in particular melt distributor or melt mixer, for an extruding die (2) of an extrusion facility (3), having a melt conductor block (4) with a multi-channel system (5), the multi-channel system (5) being arranged so as to extend three-dimensionally inside the melt conductor block (4) and having at least one input (6) and at least one output (7) for polymer melt, between one input (6) and one output (7) fluidically connected to the input (6) several branchings (8) arranged in series and several levels (9a, 9b, 9c) of sub-branches (10) being formed over several levels (12a, 12b) of divided melt channels (11a, 11b), m melt channels (11a) of the ath level (12a) with xth local cross-sections and n melt channels (11b) of the bth level (12b) with yth local cross-sections being present, wherein n>m if b>a, the yth local cross-sections of the melt channels (11b) of the bth level (12b) being smaller than the xth local cross-sections of the melt channels (11a) of the ath level (12a), Melt conductor (1), in particular melt distributor or melt mixer, for an extruding die (2) of an extrusion facility (3), having a melt conductor block (4) with a multi-channel system (5), the multi-channel system (5) being arranged so as to extend three-dimensionally inside the melt conductor block (4) and having at least one input (6) and at least one output (7) for polymer melt, between one input (6) and one output (7) fluidically connected to the input (6) several branchings (8) arranged in series and several levels (9a, 9b, 9c) of sub-branches (10) being formed over several levels (12a, 12b) of divided melt channels (11a, 11b), m melt channels (11a) of the ath level (12a) with xth local cross-sections and n melt channels (11b) of the bth level (12b) with yth local cross-sections being present, wherein n>m if b>a, the yth local cross-sections of the melt channels (11b) of the bth level (12b) being smaller than the xth local cross-sections of the melt channels (11a) of the ath level (12a), and wherein in the area of the multi-channel system (5), means for at least indirectly influencing polymer melt are arranged.

IPC Classes  ?

• B29C 48/70 - Flow dividers, e.g. breaker plates comprising means for dividing, distributing and recombining melt flows
• B01F 25/432 - Mixing tubes, e.g. wherein the material is moved in a radial or partly reversed direction with means for dividing the material flow into separate sub-flows and for repositioning and recombining these sub-flowsCross-mixing, e.g. conducting the outer layer of the material nearer to the axis of the tube or vice-versa
• B29B 7/32 - MixingKneading continuous, with mechanical mixing or kneading devices with non-movable mixing or kneading devices
• B29B 7/72 - Measuring, controlling or regulating
• B29C 48/255 - Flow control means, e.g. valves
• B29C 48/36 - Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
• B29C 48/92 - Measuring, controlling or regulating

Abstract

The invention relates to a melt conductor (1), in particular a melt distributor or melt mixer, for an extruding die (2) of an extrusion facility (3), comprising two or more melt conductor blocks (4a, 4b) and a multi-channel system (5), the multi-channel system (5) being arranged inside at least one of the melt conductor blocks (4a, 4b) with three-dimensional extension and having at least one input (6) and at least one output (7) for polymer melt, between one input (6) and one output (7) fluidically connected to the input (6) several branchings (8) arranged in series and several levels (9a) of sub-branches (10) being formed over several levels (12a, 12b) of divided melt channels (11a, 11b); with m melt channels (11a) of the ath level (12a) with xth local cross-sections and n melt channels (11b) of the bth level (12b) with yth local cross-sections being present, wherein n>m if b>a, the yth local cross-sections of the melt channels (11b) of the bth level (12b) being smaller than the xth local cross-sections of the melt channels (11a) of the ath level (12a). The invention further relates to an extruding die, an extrusion facility and to a method of operating the extrusion facility.

IPC Classes  ?

• B29C 48/36 - Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
• B29C 48/30 - Extrusion nozzles or dies
• B29C 48/695 - Flow dividers, e.g. breaker plates

Goods & Services

Machines, parts thereof and installations composed thereof for manufacturing spunbonds; machines, parts thereof and installations composed thereof for manufacturing non-woven fabrics; machines, parts thereof and installations composed thereof for manufacturing meltblown fibers and meltblown non-wovens; machines, parts thereof and installations composed thereof for the treatment and processing of spunbonds, non woven fabrics, meltblown fibers and meltblown non-wovens; machines, parts thereof and installations composed thereof for the treatment and processing of plastics; machines and machine tools, parts thereof and installations composed thereof for material processing and manufacturing of non-woven fabrics from extruded filaments; parts for all the aforementioned goods Electric and electronic control, measuring and regulating devices for machines for manufacturing spunbonds, machines for manufacturing non-woven fabrics, machines for manufacturing meltblown fibers and meltblown non-wovens, machines for the treatment and processing of plastics as well as machines and machine tools for material processing and manufacturing, namely, electronic controllers for industrial measuring systems for temperature control, pressure control, tension control and torque control of machines for manufacturing spunbonds fibers and filaments machines for manufacturing non-woven fabrics, machines for manufacturing meltblown fibers and filaments and meltblown non-wovens, machines for the treatment and processing of plastics and machines and machine tools for material processing manufacturing; material testing instruments and machines, namely, plastic testing machines; calibrating apparatus, namely, industrial calibration sensors; weighing, measuring, signalling and regulating apparatus and instruments, namely, industrial measuring systems for pressure control, comprised of direct or non-direct pressure measurement sensors, strain gauges and pressure membranes and industrial measuring systems for line speed control, web speed control and RPM control, comprised of processing units and control units for rotational speed of the winder, nip and rollers, RPM sensors and speed transmitters; apparatus and instruments for conducting, switching, transforming, accumulating, regulating and controlling electricity, namely, electricity conduits, electricity meters, electricity limiters, electricity distribution consoles, PLC and HMI systems; parts for all the aforementioned goods Conceptual design and construction drafting of machines for manufacturing spunbonds, machines for manufacturing non-woven fabrics, machines for manufacturing meltblown fibers and meltblown non-wovens, machines for the treatment and processing of plastics as well as machines and machine tools for material processing and manufacturing; technical application consultancy for machines and parts thereof for manufacturing spunbonds, non-woven fabrics, meltblown fibers and meltblown non-wovens; technical application consultancy for machines for the treatment and processing of plastics as well as machines and machine tools for material processing and manufacturing; technical consultancy in the field of machine construction; engineering services; surveying; technical research in the field of engineering of machines for manufacturing spunbonds, machines for manufacturing non-woven fabrics, machines for manufacturing meltblown fibers and meltblown non-wovens, machines for the treatment and processing of plastics as well as machines and machine tools for material processing and manufacturing; mechanical research; research and development of new products for others; construction drafting; material testing; quality control for others; technical project studies, namely, conducting of feasibility studies in the field of new technologies; scientific research; consultancy and information relating to the aforementioned services

Abstract

The invention relates to a nonwoven fabric comprising at least one nonwoven web composed of fibres. The nonwoven fabric has an embossed pattern. The embossed pattern consists of a plurality of embossments - preferably not connected to one another. The embossments each have an embossing area of 0.05 to 0.3 mm².

IPC Classes  ?

• D04H 3/147 - Composite yarns or filaments
• D04H 3/16 - Non woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic yarns or filaments produced by welding with bonds between thermoplastic filaments produced in association with filament formation, e.g. immediately following extrusion
• D04H 1/541 - Composite fibres e.g. sheath-core, sea-island or side-by-sideMixed fibres

Abstract

A spunbonded nonwoven laminate comprising at least two spunbonded nonwoven layers made of continuous filaments, wherein at least one crimped spunbonded nonwoven layer comprising bulked continuous filaments is present. The bulked continuous filaments of the at least one crimped spunbonded nonwoven layer are multicomponent filaments comprising at least one first polymer component and at least one second polymer component. At least one reinforcing spunbonded nonwoven layer which consists or substantially consists of non-bulked continuous filaments and/or continuous filaments that are less bulked in comparison with the continuous filaments of the at least one crimped spunbonded nonwoven layer is present. The continuous filaments of the reinforcing spunbonded nonwoven layer comprise at least one binder component arranged at their surface. The melting temperature difference between the binder component of the continuous filaments of the reinforcing spunbonded nonwoven layer and the first polymer component of the continuous filaments of the at least one crimped spunbonded nonwoven layer is less than 15°C. The laminate has a maximum cantilever flexural strength of at most 100 mm.

IPC Classes  ?

• B32B 5/02 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by structural features of a layer comprising fibres or filaments
• B32B 5/26 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by the presence of two or more layers which comprise fibres, filaments, granules, or powder, or are foamed or specifically porous one layer being a fibrous or filamentary layer another layer also being fibrous or filamentary
• D04H 3/007 - Addition polymers

Abstract

The invention relates to a method for producing a nonwoven fabric comprising at least one nonwoven web composed of fibres. The fibres are produced by means of at least one fibre-producing device. Subsequently, the fibres are deposited on at least one depositing device in order to form the nonwoven web. The nonwoven web or nonwoven fabric is solidified with at least one calender roller, and the nonwoven fabric is also solidified or primarily solidified with at least one hot fluid primary solidification device.

IPC Classes  ?

• D04H 1/4382 - Stretched reticular film fibresComposite fibresMixed fibresUltrafine fibresFibres for artificial leather
• D04H 1/541 - Composite fibres e.g. sheath-core, sea-island or side-by-sideMixed fibres
• D04H 3/007 - Addition polymers
• D04H 3/011 - Polyesters
• D04H 3/08 - Non woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating
• D04H 3/147 - Composite yarns or filaments
• D04H 3/16 - Non woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic yarns or filaments produced by welding with bonds between thermoplastic filaments produced in association with filament formation, e.g. immediately following extrusion
• B32B 5/02 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by structural features of a layer comprising fibres or filaments
• B32B 5/26 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by the presence of two or more layers which comprise fibres, filaments, granules, or powder, or are foamed or specifically porous one layer being a fibrous or filamentary layer another layer also being fibrous or filamentary

Abstract

The invention relates to a plant for producing a coextruded multilayer film with at least one extruder device for providing material melts of thermoplastic materials, with a device comprising a coextrusion adapter and a nozzle part for coextruding a multilayer coextrusion composite of interconnected individual layers, wherein the coextrusion adapter has a central channel for producing a central layer of the coextrusion composite, at least one coextrusion channel for producing at least one further layer of the coextrusion composite interacting with the central layer, a plurality of displaceable adjusting elements for adjusting layer thicknesses and/or layer thickness profiles of individual layers of the coextrusion composite, and adjusting devices for actuating the adjusting elements, having a drive unit for driving the adjusting devices, having a measuring device for measuring layer thicknesses and/or layer thickness profiles of individual layers of the multilayer coextrusion composite, the measuring device being set up to measure the individual layer thicknesses and/or the individual layer profiles downstream of the nozzle part, and having a system controller for controlling the system, wherein the system controller comprises a controller unit which is set up so that relative positions of adjusting elements can be manipulated automatically, preferably iteratively, by means of the drive unit as a function of layer thicknesses and/or layer thickness profiles measured on the multilayer film already leaving the nozzle part.

IPC Classes  ?

• B29C 48/92 - Measuring, controlling or regulating
• B29C 48/25 - Component parts, details or accessoriesAuxiliary operations
• B29C 48/21 - Articles comprising two or more components, e.g. co-extruded layers the components being layers the layers being joined at their surfaces
• B29C 48/31 - Extrusion nozzles or dies having a wide opening, e.g. for forming sheets adjustable

Abstract

The invention relates to a nonwoven unit comprising at least one nonwoven layer having at least one first layer and at least one second layer. The second layer is in the form of a nonwoven layer composed of continuous filaments. The average pore size of pores formed in the first layer is smaller than the average pore size of the pores between the filaments of the second layer. The second layer has functional particles which are embedded in the pores between the filaments of the second layer. The first layer forms a barrier preventing the penetration of particles or functional particles having a size greater than 150 μm.

IPC Classes  ?

• A61F 13/15 - Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the bodySupporting or fastening means thereforTampon applicators
• A61F 13/534 - Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the bodySupporting or fastening means thereforTampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad
• A61F 13/537 - Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the bodySupporting or fastening means thereforTampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer
• B32B 5/02 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by structural features of a layer comprising fibres or filaments
• B32B 5/26 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by the presence of two or more layers which comprise fibres, filaments, granules, or powder, or are foamed or specifically porous one layer being a fibrous or filamentary layer another layer also being fibrous or filamentary
• D04H 3/016 - Non woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the fineness
• D04H 3/02 - Non woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of forming fleeces or layers, e.g. reorientation of yarns or filaments
• D04H 3/147 - Composite yarns or filaments
• D04H 3/16 - Non woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic yarns or filaments produced by welding with bonds between thermoplastic filaments produced in association with filament formation, e.g. immediately following extrusion

Abstract

The invention relates to a nonwoven unit comprising at least one nonwoven layer having at least one first layer and at least one second layer. The second layer is in the form of a nonwoven layer composed of continuous filaments. The second layer has absorption particles which are embedded in the pores between the filaments of the second layer. At least one third layer, which is applied to the second layer and is in the form of a nonwoven layer composed of continuous filaments, or at least one second nonwoven layer, which is applied to the second layer and is composed of continuous filaments, is provided. The third layer or the second nonwoven layer has hydrophilic properties. The first layer forms a barrier preventing the penetration of particles or absorption particles having a size greater than 150 μm.

IPC Classes  ?

• B32B 5/02 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by structural features of a layer comprising fibres or filaments
• B32B 5/26 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by the presence of two or more layers which comprise fibres, filaments, granules, or powder, or are foamed or specifically porous one layer being a fibrous or filamentary layer another layer also being fibrous or filamentary
• D04H 3/016 - Non woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the fineness
• D04H 3/147 - Composite yarns or filaments

Abstract

A nonwoven web is made by displacing an air-permeable mesh-belt conveyor in a horizontal travel direction and spinning and then depositing crimped continuous filaments as a web at a deposit region on the air-permeable mesh-belt conveyor. A first preconsolidation stage is provided downstream of the deposit region and a second preconsolidation separated by a suction gap from the first stage. Air is drawn air through the web and the conveyor at the deposit region at a first predetermined speed, the first and second consolidation stages at a second and third predetermined speeds, and at the suction gap either not at all or at a fourth predetermined equal to at most substantially less than the second predetermined speed.

IPC Classes  ?

• D01D 5/088 - Cooling filaments, threads or the like, leaving the spinnerettes
• D01D 5/22 - Formation of filaments, threads, or the like with a crimped or curled structureFormation of filaments, threads, or the like with a special structure to simulate wool
• D01D 5/23 - Formation of filaments, threads, or the like with a crimped or curled structureFormation of filaments, threads, or the like with a special structure to simulate wool by asymmetrical cooling of filaments, threads, or the like, leaving the spinnerettes
• D01D 5/34 - Core-skin structureSpinnerette packs therefor
• D01D 13/00 - Complete machines for producing man-made threads
• D01D 13/02 - Elements of machines in combination
• D02G 1/00 - Producing crimped or curled fibres, filaments, yarns or threads, giving them latent characteristics
• D02G 1/10 - Producing crimped or curled fibres, filaments, yarns or threads, giving them latent characteristics using knife edges, e.g. heated knife edges, for edge crimping
• D04H 3/08 - Non woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating
• D04H 3/16 - Non woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic yarns or filaments produced by welding with bonds between thermoplastic filaments produced in association with filament formation, e.g. immediately following extrusion

Abstract

The invention relates to nonwoven fabric sheets containing crimped multicomponent fibers.

IPC Classes  ?

• D04H 1/4291 - Olefin series
• D01D 5/22 - Formation of filaments, threads, or the like with a crimped or curled structureFormation of filaments, threads, or the like with a special structure to simulate wool
• D01D 5/32 - Side-by-side structureSpinnerette packs therefor
• D01F 8/06 - Conjugated, i.e. bi- or multicomponent, man-made filaments or the likeManufacture thereof from synthetic polymers with at least one polyolefin as constituent
• D04H 1/4382 - Stretched reticular film fibresComposite fibresMixed fibresUltrafine fibresFibres for artificial leather
• D04H 1/4391 - Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece characterised by the shape of the fibres
• D04H 1/541 - Composite fibres e.g. sheath-core, sea-island or side-by-sideMixed fibres
• D04H 3/007 - Addition polymers
• D04H 3/147 - Composite yarns or filaments

Abstract

The invention relates to a film blowing machine (10) for producing a film web from a recycled material (4), having the following features: • a. the film blowing machine (10) has an extruder (20) for melting and homogenising the recycled material (4) into a melt, and • b. the film blowing machine (10) has an annular die (30) for extruding a film tube (6), and • c. the film blowing machine (10) has a guide for a melt flow (40) between the extruder (20) and the annular die (20) via an annular die melt pump (42), for conveying the melt to the annular die (30), and • d. the film blowing machine (10) has a tube-forming zone (32) for longitudinal and transverse drawing of the film tube (6), • e. the film blowing machine (10) has a cooling means (32) for the film tube (6) moving in the machine direction, and • f. the film blowing machine (10) has a flattening unit (36) on the other side of the tube-forming zone (32) for flattening the film tube (6) into a double layer film web (8), and • g. the film blowing machine (10) has a pair of draw-off rollers (38) on the other side of the cooling means (34) for drawing off the film tube (6), and • h. the extruder (20) is designed as a twin-screw extruder.

IPC Classes  ?

• B29C 48/10 - Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels flexible, e.g. blown foils
• B29C 48/40 - Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws, e.g. twin screw extruders
• B29C 48/69 - Filters or screens for the moulding material
• B29C 48/92 - Measuring, controlling or regulating
• B29C 55/28 - Shaping by stretching, e.g. drawing through a dieApparatus therefor of blown tubular films, e.g. by inflation
• B29C 48/25 - Component parts, details or accessoriesAuxiliary operations
• B29C 48/27 - CleaningPurgingAvoiding contamination
• B29C 48/275 - Recovery or reuse of energy or materials
• B29C 48/285 - Feeding the extrusion material to the extruder

Abstract

A spunbond nonwoven laminate has a plurality of stacked spunbond nonwoven layers, namely at least two and at most four spunbond nonwoven layers that have crimped continuous filaments or consist of crimped continuous filaments. The degree of crimping of the filaments is different in each of these spunbond nonwoven layers, and each of the crimped filaments of the spunbond nonwoven layers has a crimp with at least two, preferably at least three, and more preferably with at least four loops per centimeter of length. The crimped filaments of the spunbond nonwoven layers are multicomponent filaments, particularly bicomponent filaments, with a first plastic component and a second plastic component present in the respective filament in a proportion of at least 10 wt %.

IPC Classes  ?

• B32B 5/26 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by the presence of two or more layers which comprise fibres, filaments, granules, or powder, or are foamed or specifically porous one layer being a fibrous or filamentary layer another layer also being fibrous or filamentary
• B32B 5/02 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by structural features of a layer comprising fibres or filaments
• D04H 1/544 - Olefin series
• D04H 1/541 - Composite fibres e.g. sheath-core, sea-island or side-by-sideMixed fibres
• D04H 1/4391 - Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece characterised by the shape of the fibres
• D04H 3/10 - Non woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between yarns or filaments made mechanically
• D04H 13/00 - Other non-woven fabrics
• D04H 1/559 - Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving the fibres being within layered webs
• D04H 3/007 - Addition polymers
• D04H 3/16 - Non woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic yarns or filaments produced by welding with bonds between thermoplastic filaments produced in association with filament formation, e.g. immediately following extrusion

Goods & Services

Jets being parts of machines; jets for film extrusion machines; flat jets for film extrusion machines; extrusion tools as parts of machines; extrusion tools for film extrusion machines.

Goods & Services

Jets for film extrusion machines, namely, coextrusion adapters and die adjustments; Flat jets for film extrusion machines, namely, coextrusion adapters and die adjustments; Extrusion tools as parts of machines, namely, coextrusion adapters and die adjustments; Extrusion tools for film extrusion machines, namely, coextrusion adapters and die adjustments

Abstract

A nozzle has a body having a face extending in a longitudinal direction and transversely thereto in a transverse direction. The nozzle plate is provided with an array of melt openings and compressed-air openings on the face in a plurality of longitudinally extending rows and a plurality of transversely extending rows. A polymer melt to the nozzle openings to extrude the polymer melt downstream from the melt openings as polymer filaments and compressed air to the compressed-air openings to form air jets issuing downstream from the compressed-air openings between the polymer filaments. Only the polymer melt and no air is supplied to the melt openings such that only the polymer melt issues from the melt openings. Only compressed air and no polymer melt is supplied to the compressed-air openings such that only the compressed air issues from the compressed-air openings.

IPC Classes  ?

• B29C 48/345 - Extrusion nozzles comprising two or more adjacently arranged ports, for simultaneously extruding multiple strands, e.g. for pelletising
• B29C 48/05 - Filamentary, e.g. strands
• D01D 4/02 - Spinnerettes
• D01D 5/098 - Melt-spinning methods with simultaneous stretching
• D04H 1/56 - Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving in association with fibre formation, e.g. immediately following extrusion of staple fibres
• B29L 31/00 - Other particular articles

Abstract

Method for producing a nonwoven fabric from fibres. Continuous filaments are produced from thermoplastic material by at least one meltblown spinneret. Chopped pulp fibres are also produced by at least one pulping device. In the pulping device, at least one chopped-fibre/air stream is produced from the chopped pulp fibres, is passed through and discharged from an outlet channel and flows with an initial volumetric flow V1 and a flow direction S1 in the direction of an air-permeable depositing screen belt. The continuous filaments flow from the at least one meltblown spinneret as a filament/air stream with an initial volumetric flow V2 in the direction of the chopped-fibre/air stream. The filament/air stream and the chopped-fibre/air stream are brought together above the depositing screen belt in a contact zone and deposited as a mixture of continuous filaments and chopped fibres in a depositing region on the depositing screen belt to form the nonwoven fabric or nonwoven web. In the depositing region of the fibres or of the mixture of continuous filaments and chopped fibres, air or process air is sucked through the depositing screen belt from below with a volumetric flow V4. The volumetric flow V4 is greater than the sum of the volumetric flows V1 and V2.

IPC Classes  ?

• D04H 1/425 - Cellulose series
• D01D 5/098 - Melt-spinning methods with simultaneous stretching
• D04H 1/4291 - Olefin series
• D04H 1/70 - Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres
• D04H 3/007 - Addition polymers
• D04H 3/02 - Non woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of forming fleeces or layers, e.g. reorientation of yarns or filaments

Abstract

A process for producing a nonwoven fabric from fibers, wherein at least two meltblown spinnerets which each comprise a multiplicity of serially arranged nozzle apertures produce continuous filaments of thermoplastic. Furthermore, at least one defibration means produces short pulp fibers from solid pulp. The defibration means produces at least one short fiber-air stream from the short pulp fibers. The continuous filaments flow as filament-air streams from the meltblown spinnerets in the direction of the short fiber-air stream. In a laydown region the continuous filaments and the pulp short fibers are laid down on a laydown sieve belt to give the nonwoven fabric/the nonwoven web.

IPC Classes  ?

• D04H 1/425 - Cellulose series
• D01D 5/098 - Melt-spinning methods with simultaneous stretching
• D04H 1/4291 - Olefin series
• D04H 1/70 - Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres
• D04H 3/007 - Addition polymers
• D04H 3/02 - Non woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of forming fleeces or layers, e.g. reorientation of yarns or filaments

Abstract

A method for producing a nonwoven fabric made of crimped synthetic fibers, wherein the synthetic fibers are spun and are deposited on a conveyor as a nonwoven web. The deposited nonwoven web is pre-bonded by means of at least one first hot-air bonding device, wherein a main suction air is sucked from below through the conveyor in the area of fiber deposition. A first suction air is sucked from below through the conveyor in the region of the first hot-air bonding device. The air speed of the main suction air is greater than the air speed of the first suction air.

IPC Classes  ?

• D01D 5/098 - Melt-spinning methods with simultaneous stretching
• D01D 5/092 - Cooling filaments, threads or the like, leaving the spinnerettes in shafts or chimneys
• D01D 5/22 - Formation of filaments, threads, or the like with a crimped or curled structureFormation of filaments, threads, or the like with a special structure to simulate wool
• D01D 5/32 - Side-by-side structureSpinnerette packs therefor
• D01D 5/34 - Core-skin structureSpinnerette packs therefor
• D01F 8/06 - Conjugated, i.e. bi- or multicomponent, man-made filaments or the likeManufacture thereof from synthetic polymers with at least one polyolefin as constituent
• D04H 3/018 - Non woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the shape
• D04H 3/147 - Composite yarns or filaments
• D04H 3/16 - Non woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic yarns or filaments produced by welding with bonds between thermoplastic filaments produced in association with filament formation, e.g. immediately following extrusion
• D01D 13/00 - Complete machines for producing man-made threads

Abstract

A spunbond nonwoven textile is made of endless crimped bicomponent or multicomponent filaments having an eccentric core-sheath configuration. The sheath of the filaments in the filament cross-section has a substantially constant thickness of 0.1 to 5 μm over at least 20% of the filament outer surface.

IPC Classes  ?

• D04H 3/011 - Polyesters
• D01D 5/22 - Formation of filaments, threads, or the like with a crimped or curled structureFormation of filaments, threads, or the like with a special structure to simulate wool
• D01D 5/34 - Core-skin structureSpinnerette packs therefor
• D04H 3/018 - Non woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the shape
• D04H 3/147 - Composite yarns or filaments

Abstract

3.

IPC Classes  ?

• B32B 5/26 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by the presence of two or more layers which comprise fibres, filaments, granules, or powder, or are foamed or specifically porous one layer being a fibrous or filamentary layer another layer also being fibrous or filamentary
• B32B 5/02 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by structural features of a layer comprising fibres or filaments
• B32B 37/10 - Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using direct action of vacuum or fluid pressure

Abstract

The invention relates to a plastics-shaping system, especially a blown-film system or a flat-film system or some other system designed to manufacture a film web, comprising a treatment roller line with process rollers, the treatment roller line comprising a retaining roller and a drawing roller and optionally additional rollers, which are set at different circumferential speeds from each other, specifically the drawing roller having a higher circumferential speed than the retaining roller, wherein the retaining roller and/or the drawing roller and/or an additional process roller sucks the film web onto its relevant rotating surface by means of a negative pressure so that the film web lies against the roller as uniformly as possible and/or so that a static-friction zone which is as extensive as possible is made possible. The invention also relates to a method for operating a system, wherein the negative pressure is brought to the external region of the roller through a permeable surface on the roller in order to suck the film web onto the roller.

IPC Classes  ?

• B29C 55/06 - Shaping by stretching, e.g. drawing through a dieApparatus therefor of plates or sheets uniaxial, e.g. oblique parallel with the direction of feed

Abstract

The invention relates to a device for producing a nonwoven fabric, wherein at least one spinning apparatus for spinning fibers is provided and a deposit conveyor is provided, on which the fibers can be deposited to form the nonwoven web. At least one hot-air pre-bonding apparatus is provided for the hot-air pre-bonding of the nonwoven web on the deposit conveyor. An additional conveyor for receiving the pre-bonded nonwoven web is arranged downstream of the deposit conveyor in the conveying direction of the nonwoven web, at least one final bonding apparatus being provided for the final bonding of the nonwoven web on the additional conveyor. The hot hot-air pre-bonding of the nonwoven web can be carried out on the deposit conveyor, with the stipulation that the nonwoven web has a strength in the machine direction (MD) of 0.6 to 4 N/5 cm before being transferred to the additional conveyor.

IPC Classes  ?

• B32B 5/26 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by the presence of two or more layers which comprise fibres, filaments, granules, or powder, or are foamed or specifically porous one layer being a fibrous or filamentary layer another layer also being fibrous or filamentary
• D04H 3/02 - Non woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of forming fleeces or layers, e.g. reorientation of yarns or filaments
• D04H 3/16 - Non woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic yarns or filaments produced by welding with bonds between thermoplastic filaments produced in association with filament formation, e.g. immediately following extrusion
• D04H 3/147 - Composite yarns or filaments
• B32B 5/02 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by structural features of a layer comprising fibres or filaments
• B32B 5/08 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by structural features of a layer comprising fibres or filaments the fibres or filaments of a layer being specially arranged or being of different substances

Abstract

A spunbonded nonwovens is made by first spinning thermoplastic continuous filaments and emitting them from a spinneret in a direction and then passing the filaments in the direction through a cooling chamber. Meanwhile cooling air is fed from respective manifolds flanking the chamber into the chamber to cool the filaments and the cooling air is guided into the manifolds through respective manifolds and through respective planar homogenizing elements each having a plurality of openings forming a free open surface area constituting 1 to 40% of the total surface area of the respective planar homogenizing element. The cooling air passes from the planar homogenizing element into the cooling chamber through a flow straightener.

IPC Classes  ?

• D04H 1/736 - Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged characterised by the apparatus for arranging fibres
• D04H 1/76 - Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres otherwise than in a plane, e.g. in a tubular way
• D04H 3/077 - Stick, rod or solid cylinder shaped

Abstract

A spunbond nonwoven laminate has a first spunbond nonwoven layer having crimped filaments formed by a first component on an outer surface of the filaments of the first layer consisting or substantially consisting of a polyolefin and a second component consisting or substantially consisting of a plastic having a higher melting point than the polyolefin of the first component of the filaments of the first layer. A second outermost spunbond nonwoven layer on the first layer having filaments as a cover layer and formed by a first component on an outer surface of the filaments of the second layer consisting or substantially consisting of a polyolefin, and a second component consisting or substantially consisting of a plastic having a higher melting point than the polyolefin of the first component of the filaments of the second layer.

IPC Classes  ?

• B32B 5/26 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by the presence of two or more layers which comprise fibres, filaments, granules, or powder, or are foamed or specifically porous one layer being a fibrous or filamentary layer another layer also being fibrous or filamentary
• B32B 5/02 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by structural features of a layer comprising fibres or filaments
• D04H 3/007 - Addition polymers
• D04H 3/16 - Non woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic yarns or filaments produced by welding with bonds between thermoplastic filaments produced in association with filament formation, e.g. immediately following extrusion
• B32B 37/14 - Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
• B32B 38/00 - Ancillary operations in connection with laminating processes

Abstract

An apparatus for making nonwoven from continuous filaments has a spinner for spinning the filaments, a cooler for cooling the spun filaments, and a mesh belt that moves in a generally horizontal travel direction and that passes through a deposition location where the spun and cooled filaments are deposited on the mesh belt to form thereon a nonwoven web. A nose roller defines a deflection zone over which the mesh belt is deflected from its travel direction downstream of the deposition location. At least one lift roller above the mesh belt downstream of the deposition location separates the nonwoven web from the mesh belt at a separation location at a first spacing upstream from the deflection zone of the nose roller. A treatment device for the nonwoven web is provided downstream of the mesh belt in the travel direction and receiving the nonwoven web from the lift roller.

IPC Classes  ?

• D01D 4/02 - Spinnerettes
• D01D 5/088 - Cooling filaments, threads or the like, leaving the spinnerettes
• D01D 7/00 - Collecting the newly-spun products
• D01D 13/00 - Complete machines for producing man-made threads
• D01D 13/02 - Elements of machines in combination
• D04H 3/02 - Non woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of forming fleeces or layers, e.g. reorientation of yarns or filaments
• D04H 3/033 - Non woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of forming fleeces or layers, e.g. reorientation of yarns or filaments at random reorientation immediately after yarn or filament formation

Abstract

A nonwoven fabric comprising a plurality of filamentary strata, wherein the fabric comprises - a first stratum (A), which forms an outer surface of the nonwoven fabric and comprises continuous multi-component filaments comprising a component, which forms at least 20 % of the surface of the filaments and bonds within the first stratum (A) and has its melting point at least 5°C lower than the melting point of the other components of the filaments of the first stratum (A), and - a second stratum (B), which comprises continuous multi-component filaments comprising a component, which forms at least 20 % of the surface of the filaments and bonds within the second stratum (B) and has its melting point at least 5°C lower than the melting point of the other components of the filaments of the second stratum (B), - wherein the bulk density of the fabric is lower than 60 kg/m3.

IPC Classes  ?

• D04H 3/147 - Composite yarns or filaments

Abstract

The invention relates to a film installation and a method for producing a film web, in particular a cast film installation or smoothing calender installation, having: a machine direction in which the film web is conveyed through the film installation; a roll apparatus which processes a film material melt and comprises at least one film-producing roll and a film-producing gap having temperature control apparatuses for thermally treating the film web; and a stretching apparatus for stretching the film web, wherein the stretching apparatus is situated downstream of the at least one film-producing roll in the machine direction, circumventing a critical cooling section. The invention further relates to the use of a roll apparatus which processes film material melt.

IPC Classes  ?

• B29C 55/06 - Shaping by stretching, e.g. drawing through a dieApparatus therefor of plates or sheets uniaxial, e.g. oblique parallel with the direction of feed
• B29C 43/24 - Calendering
• B29C 43/52 - Heating or cooling
• B29D 7/01 - Films or sheets

Abstract

A nonwoven fabric and a method of production of said nonwoven fabric are disclosed, wherein the nonwovens fabric comprises at least one layer, said layer comprising endless filaments, —which comprise at least a first polymeric material (A) and a second polymeric material (B) having its melting point lower than the first polymeric material A, —wherein the second polymeric material (B) extends in the longitudinal direction of the filament and forms at least a part of the surface of the filament and—the at least one layer of endless filaments comprises filament-to-filament bonds formed of the second polymeric material (B), wherein all components of the filaments are arranged across the cross-section of the filament in a non-crimpable configuration and the nonwoven fabric has a structural softness of at least 80 (m4 mm2 g−2).

IPC Classes  ?

• A61F 13/538 - Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the bodySupporting or fastening means thereforTampon applicators characterised by the absorbing medium characterised by specific fibre orientation or weave
• C08L 67/04 - Polyesters derived from hydroxy carboxylic acids, e.g. lactones
• B01J 20/26 - Synthetic macromolecular compounds
• B01J 20/28 - Solid sorbent compositions or filter aid compositionsSorbents for chromatographyProcesses for preparing, regenerating or reactivating thereof characterised by their form or physical properties
• A61F 13/15 - Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the bodySupporting or fastening means thereforTampon applicators
• D01D 5/30 - Conjugate filamentsSpinnerette packs therefor
• D01D 10/00 - Physical treatment of man-made filaments or the like during manufacture, i.e. during a continuous production process before the filaments have been collected
• D01F 8/04 - Conjugated, i.e. bi- or multicomponent, man-made filaments or the likeManufacture thereof from synthetic polymers
• D04H 3/011 - Polyesters
• D04H 3/007 - Addition polymers
• D04H 3/16 - Non woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic yarns or filaments produced by welding with bonds between thermoplastic filaments produced in association with filament formation, e.g. immediately following extrusion
• D04H 3/147 - Composite yarns or filaments

Abstract

Spunbonded nonwoven is made from continuous thermoplastic filaments emitted downwardly by a spinneret in a filament direction. A cooling chamber directly beneath the spinneret receives the filaments from the spinneret and cools the spun filaments with cooling air and has relative to a longitudinally extending machine direction a pair of longitudinal sides extending parallel to the machine direction and a pair of transverse sides extending substantially perpendicular to the machine direction between the longitudinal sides. Respective air-supply manifolds on the transverse sides feed cooling air therefrom into the cooling chamber. The cooling air is extracted from the cooling chamber at the longitudinal sides. A stretcher directly beneath the cooling chamber receives and elongates the cooled filaments, and a device deposits the stretched filaments as a band and conveys the band off in the machine direction.

IPC Classes  ?

• D04H 3/16 - Non woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic yarns or filaments produced by welding with bonds between thermoplastic filaments produced in association with filament formation, e.g. immediately following extrusion

Abstract

An apparatus for making a nonwoven fabric from thermoplastic fibers has a spinneret for spinning fibers into continuous filaments and a cooler for cooling the filaments. The cooled filaments are then deposited on a conveyor to form a nonwoven web. A first consolidator surface treats the nonwoven web with a hot fluid or hot air as it is conveyed on the conveyor. A second consolidating downstream of the first consolidator has a dual-belt furnace in which the nonwoven web is passed between two circulating belts or continuous belts for surface treating the nonwoven web with a hot fluid or hot air and for applying surface pressure can be applied to the nonwoven web at the same time.

IPC Classes  ?

• D01D 4/02 - Spinnerettes
• D01D 13/00 - Complete machines for producing man-made threads
• D01D 13/02 - Elements of machines in combination
• D04H 3/16 - Non woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic yarns or filaments produced by welding with bonds between thermoplastic filaments produced in association with filament formation, e.g. immediately following extrusion
• D06C 15/02 - Calendering, pressing, ironing, glossing or glazing textile fabrics between co-operating press or calender rolls
• D06C 15/06 - Calendering, pressing, ironing, glossing or glazing textile fabrics between rollers and co-operating moving surfaces formed of flexible material, e.g. bands
• D06M 10/00 - Physical treatment of fibres, threads, yarns, fabrics or fibrous goods made from such materials, e.g. ultrasonic, corona discharge, irradiation, electric currents or magnetic fieldsPhysical treatment combined with treatment with chemical compounds or elements
• D04H 3/147 - Composite yarns or filaments
• D04H 1/558 - Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving in combination with mechanical or physical treatments other than embossing
• B29C 71/00 - After-treatment of articles without altering their shapeApparatus therefor
• B32B 38/00 - Ancillary operations in connection with laminating processes

Abstract

An apparatus for making spunbond from continuous thermoplastic filaments has a spinneret for spinning the continuous filaments and advancing them in a filament-travel direction, a cooler for cooling the filaments, a stretcher for stretching the filaments, a depositing device including a foraminous belt extending in a machine direction transverse to the filament-travel direction for deposition of the filaments as a nonwoven web and conveyance away from the stretcher, a diffusor between the stretcher and the foraminous belt so that filaments and primary air from the stretcher enter into the diffusor, and a suction device for extracting air through the foraminous belt at an unobstructed extraction region underneath the diffusor outlet and having a width b in a machine direction that is greater than a width B of the diffusor outlet. The diffusor forms upstream and downstream secondary air-inlet gaps at opposite ends through which secondary air is aspirated into the diffusor.

IPC Classes  ?

• D04H 3/16 - Non woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic yarns or filaments produced by welding with bonds between thermoplastic filaments produced in association with filament formation, e.g. immediately following extrusion
• D01D 5/088 - Cooling filaments, threads or the like, leaving the spinnerettes
• D01D 5/098 - Melt-spinning methods with simultaneous stretching

Abstract

The invention relates to a melt conductor (1), in particular a melt distributor or melt mixer, for an extrusion tool (2) of an extrusion system (3), comprising two or more melt conductor blocks (4a, 4b) and a multi-channel system (5), wherein the multichannel system (5) is arranged, extending three-dimensionally, within at least one of the melt conductor blocks (4a, 4b) and has at least one inlet (6) and at least one outlet (7) for polymer melt; wherein a plurality of branchings (8) arranged one downstream the other and a plurality of generations (9a) of further branchings (10) of melt channels (11a, 11b), which melt channels are divided among a plurality of generations (12a, 12b), are formed between an inlet (6) and an outlet (7) fluidically connected to the inlet (6); wherein m melt channels (11a) of a-th generation (12a) having x-th local cross-sections and n melt channels (11b) of b-th generation (12b) having y-th local cross-sections are provided; wherein n > m, if b > a; wherein the y-th local cross-sections of the melt channels (11b) of b-th generation (12b) are smaller than the x-th local cross-sections of the melt channels (11a) of a-th generation (12a). The invention further relates to an extrusion tool, to an extrusion system and to a method for operating the extrusion system.

IPC Classes  ?

• B29C 48/695 - Flow dividers, e.g. breaker plates
• B29C 48/36 - Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
• B29C 48/25 - Component parts, details or accessoriesAuxiliary operations
• B29B 7/32 - MixingKneading continuous, with mechanical mixing or kneading devices with non-movable mixing or kneading devices
• B29C 48/92 - Measuring, controlling or regulating
• B29C 48/255 - Flow control means, e.g. valves

Abstract

The invention relates to a melt conveyor (1), in particular a melt distributor or melt mixer, for an extrusion tool (2) of an extrusion system (3), comprising a melt conveyor block (4) having a a multi-channel system (5), wherein the multi-channel system (5) is arranged such that it extends three-dimensionally within the melt conveyor block (4) and has at least one inlet (6) and at least one outlet (7) for polymer melt, wherein multiple branches (8) arranged after one another and multiple generations (9a) of additional branches (10) are formed over multiple generations (12a, 12b) of distributed melt channels (11a, 11b) between an inlet (6) and an outlet (7) fluidically connected to the inlet (6), wherein m melt channels (11a) of the a-th generation (12a) having x-th local cross-sections are provided and n melt channels (11b) of the b-th generation (12b) having y-th local cross-sections are provided, wherein n>m, if b>a, wherein the y-th local cross-sections of the melt channels (11b) of the b-th generation (12b) are smaller than the x-th local cross-sections of the melt channels (11a) of the a-th generation (12a), and wherein means for at least indirectly influencing polymer melt are arranged in the region of the multi-channel system (5).

IPC Classes  ?

• B29C 48/695 - Flow dividers, e.g. breaker plates
• B29C 48/36 - Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
• B29C 48/92 - Measuring, controlling or regulating
• B29C 48/255 - Flow control means, e.g. valves
• B29B 7/32 - MixingKneading continuous, with mechanical mixing or kneading devices with non-movable mixing or kneading devices

Abstract

The invention relates to a plant for producing a coextruded multi-layer film (2), said plant comprising: at least one extruder device for providing material melts (33) of thermoplastic materials; an apparatus, comprising a coextrusion adapter (12, 13) and a nozzle part (33, 34), for coextruding a multi-layered coextrusion composite (3) of individual layers which are connected to one another, the coextrusion adapter (12, 13) comprising a central channel (40, 42) for producing a central layer (5) of the coextrusion composite (3), at least one coextrusion channel for producing at least one further layer of the coextrusion composite (3) interacting with the central layer (5), a plurality of displaceable setting elements (47) for setting layer thicknesses (50, 52) and/or layer thickness profiles in individual layers of the coextrusion composite (3), in addition to adjusting devices (53, 55) for actuating the setting elements (47); a drive unit (15, 17, 23) for driving the adjusting devices (53, 55); a measuring device (24, 25) for measuring layer thicknesses (50, 52) and/or layer thickness profiles in individual layers of the multi-layered coextrusion composite (3), the measuring device (24, 25) being designed to measure the individual layer thicknesses and/or the individual layer profiles downstream of the nozzle part (33); and a plant controller (17, 18) for controlling the plant, the plant controller (17, 18) comprising a controller unit (18, 19) which is designed such that relative positions of setting elements (47) can be manipulated automatically, preferably iteratively, by means of the drive unit (15, 17, 23) in accordance with layer thicknesses (50, 52) and/or layer thickness profiles measured in the multi-layer film already leaving the nozzle part (33, 34).

IPC Classes  ?

• B29C 48/305 - Extrusion nozzles or dies having a wide opening, e.g. for forming sheets
• B29C 48/92 - Measuring, controlling or regulating
• B29C 48/25 - Component parts, details or accessoriesAuxiliary operations
• B29C 48/495 - Feedblocks
• B29C 48/21 - Articles comprising two or more components, e.g. co-extruded layers the components being layers the layers being joined at their surfaces
• B29C 48/08 - Flat, e.g. panels flexible, e.g. films

Abstract

The invention relates to a melt conveyor (1), in particular a melt distributor or melt mixer, for an extrusion tool (2) of an extrusion system (3), comprising a melt conveyor block (4) having a multi-channel system (5), wherein the multi-channel system (5) is arranged such that it extends three-dimensionally within the melt conveyor block (4) and has at least one inlet (6) and at least one outlet (7) for polymer melt, wherein multiple branches (8) arranged after one another and multiple generations (9a) of additional branches (10) are formed over multiple generations (12a, 12b) of distributed melt channels (11a, 11b) between an inlet (6) and an outlet (7) fluidically connected to the inlet (6), wherein m melt channels (11a) of the a-th generation (12a) having x-th local cross-sections are provided and n melt channels (11b) of the b-th generation (12b) having y-th local cross-sections are provided, wherein n>m, if b>a, wherein the y-th local cross-sections of the melt channels (11b) of the b-th generation (12b) are smaller than the x-th local cross-sections of the melt channels (11a) of the a-th generation (12a). The invention also relates to an extrusion tool, an extrusion system and a method for operating the extrusion system.

IPC Classes  ?

• B29C 48/695 - Flow dividers, e.g. breaker plates
• B29C 48/36 - Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
• B29B 7/32 - MixingKneading continuous, with mechanical mixing or kneading devices with non-movable mixing or kneading devices

Abstract

A plasticising unit of a screw injection machine, comprising a screw with a mixing part (200), and this mixing part (200) having a dispersion part (207) and a distribution part (208) and also having a flight depth (202), characterised in that the mixing part (200) has an elongation region and a shear region.

IPC Classes  ?

• B29B 7/42 - MixingKneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with single shaft with screw or helix
• B29B 7/48 - MixingKneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft with intermeshing devices, e.g. screws
• B29C 48/535 - Screws with thread pitch varying along the longitudinal axis
• B29C 48/56 - Screws having grooves or cavities other than the thread or the channel
• B29C 48/60 - Thread tops
• B29C 48/605 - Screws characterised by details of the thread, i.e. the shape of a single thread of the material-feeding screw the thread being discontinuous
• B29C 48/615 - Threads having varying helix angles

Goods & Services

Machines, parts thereof and installations composed thereof for processing plastic; extruders, film blowing machines, film casting machines, winding machines, extrusion moulding machines and their parts for the manufacture of tubular films, flat films, panels, coatings, laminations, deep-drawn films, pipes, granules, monofiles, tapes and fleeces made of plastic; parts for the aforementioned machines; mechanically operated tools and attachments for the aforementioned machines; installations composed of the aforementioned goods for processing plastic; all aforementioned goods, as far as included in this class. Electrical and electronic control and regulating apparatus for the machines mentioned in class 7. Clothing, headgear and footwear for medical staff and patients; protective clothing for medical use, in particular protective suits for medical staff, aprons for medical use, protective gloves for medical use, medical gowns; protective masks for medical staff; protective bonnets for the hair for medical use; protective mouth masks for medical use; protective visors and goggles for medical use; face masks for medical use for protection against bacteria, viruses or toxic substances; disposable gloves for surgical use; surgical shoe covers; clothing especially for operating rooms, especially gowns, coats and drapes for surgical use; surgical caps; sheets [drapes] for medical use; hair nets for medical staff and patients; braces and supports for medical use. Non-woven fabrics; textile goods and substitutes for textile goods.

Abstract

A spunbond nonwoven laminate has a first spunbond nonwoven layer having crimped filaments formed by a first component on an outer surface of the filaments of the first layer consisting or substantially consisting of a polyolefin and a second component consisting or substantially consisting of a plastic having a higher melting point than the polyolefin of the first component of the filaments of the first layer. A second outermost spunbond nonwoven layer on the first layer having filaments as a cover layer and formed by a first component on an outer surface of the filaments of the second layer consisting or substantially consisting of a polyolefin, and a second component consisting or substantially consisting of a plastic having a higher melting point than the polyolefin of the first component of the filaments of the second layer.

IPC Classes  ?

• B32B 5/26 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by the presence of two or more layers which comprise fibres, filaments, granules, or powder, or are foamed or specifically porous one layer being a fibrous or filamentary layer another layer also being fibrous or filamentary
• B32B 5/02 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by structural features of a layer comprising fibres or filaments
• D04H 3/007 - Addition polymers
• D04H 3/16 - Non woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic yarns or filaments produced by welding with bonds between thermoplastic filaments produced in association with filament formation, e.g. immediately following extrusion

Abstract

A method for producing a nonwoven fabric made of crimped synthetic fibers, wherein the synthetic fibers are spun and are deposited on a conveyor as a nonwoven web. The deposited nonwoven web is pre-bonded by means of at least one first hot-air bonding device, wherein a main suction air is sucked from below through the conveyor in the area of fiber deposition. A first suction air is sucked from below through the conveyor in the region of the first hot-air bonding device. The air speed of the main suction air is greater than the air speed of the first suction air.

IPC Classes  ?

• D04H 3/14 - Non woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic yarns or filaments produced by welding
• D04H 3/147 - Composite yarns or filaments
• D04H 3/018 - Non woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the shape
• D01D 5/22 - Formation of filaments, threads, or the like with a crimped or curled structureFormation of filaments, threads, or the like with a special structure to simulate wool
• D01D 5/092 - Cooling filaments, threads or the like, leaving the spinnerettes in shafts or chimneys
• D01D 5/098 - Melt-spinning methods with simultaneous stretching
• D01D 5/32 - Side-by-side structureSpinnerette packs therefor
• D01F 8/06 - Conjugated, i.e. bi- or multicomponent, man-made filaments or the likeManufacture thereof from synthetic polymers with at least one polyolefin as constituent
• D01D 5/34 - Core-skin structureSpinnerette packs therefor
• D01D 13/00 - Complete machines for producing man-made threads

Abstract

The invention relates to a device for producing a nonwoven fabric, wherein at least one spinning apparatus for spinning fibers is provided and a deposit conveyor is provided, on which the fibers can be deposited to form the nonwoven web. At least one hot-air pre-bonding apparatus is provided for the hot-air pre-bonding of the nonwoven web on the deposit conveyor. An additional conveyor for receiving the pre-bonded nonwoven web is arranged downstream of the deposit conveyor in the conveying direction of the nonwoven web, at least one final bonding apparatus being provided for the final bonding of the nonwoven web on the additional conveyor. The hot-air pre-bonding of the nonwoven web can be carried out on the deposit conveyor, with the stipulation that the nonwoven web has a strength in the machine direction (MD) of 0.6 to 4 N/5 cm before being transferred to the additional conveyor.

IPC Classes  ?

• D04H 3/02 - Non woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of forming fleeces or layers, e.g. reorientation of yarns or filaments
• D04H 3/147 - Composite yarns or filaments
• D04H 3/16 - Non woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic yarns or filaments produced by welding with bonds between thermoplastic filaments produced in association with filament formation, e.g. immediately following extrusion
• B32B 5/02 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by structural features of a layer comprising fibres or filaments
• B32B 5/08 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by structural features of a layer comprising fibres or filaments the fibres or filaments of a layer being specially arranged or being of different substances
• B32B 5/26 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by the presence of two or more layers which comprise fibres, filaments, granules, or powder, or are foamed or specifically porous one layer being a fibrous or filamentary layer another layer also being fibrous or filamentary

Abstract

The invention relates to a spunbond nonwoven material made of continuous filaments, in particular crimped continuous filaments, the filaments being in the form of bicomponent filaments or multicomponent filaments and having an eccentric sheath-core configuration. The sheath of the filaments, in the filament cross-section, has a constant thickness d over at least 20% of the filament circumference.

IPC Classes  ?

• D04H 3/018 - Non woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the shape
• D01D 5/34 - Core-skin structureSpinnerette packs therefor
• D04H 3/147 - Composite yarns or filaments
• D01D 5/22 - Formation of filaments, threads, or the like with a crimped or curled structureFormation of filaments, threads, or the like with a special structure to simulate wool
• D04H 3/007 - Addition polymers

Abstract

An apparatus for making a nonwoven fabric from thermoplastic plastic filaments has an air permeable deposit conveyor having a horizontal face displaceable in a horizontal travel direction and a spinneret above the conveyor for spinning the filaments and depositing the spun filaments on the deposit conveyor in a deposit area of the conveyor as a nonwoven web for conveyance in the travel direction. An extractor beneath the conveyor draws air or process air through the deposit conveyor in the deposit area in a main extraction area below the deposit conveyor and is delimited by, relative to the travel direction, upstream and downstream suction partitions. One of the partitions has an upper edge set at a predetermined vertical spacing below the conveyor equal to between 10 mm and 250 mm.

IPC Classes  ?

• D04H 3/16 - Non woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic yarns or filaments produced by welding with bonds between thermoplastic filaments produced in association with filament formation, e.g. immediately following extrusion
• D01D 5/098 - Melt-spinning methods with simultaneous stretching
• D01D 5/088 - Cooling filaments, threads or the like, leaving the spinnerettes
• D04H 1/435 - Polyesters
• D04H 1/4291 - Olefin series
• D01G 25/00 - Lap-forming devices not integral with machines specified above

Abstract

A nonwoven web is made by displacing an air-permeable mesh-belt conveyor in a horizontal travel direction and spinning and then depositing crimped continuous filaments as a web at a deposit region on the air-permeable mesh-belt conveyor. A first preconsolidation stage is provided downstream of the deposit region and a second preconsolidation separated by a suction gap from the first stage. Air is drawn air through the web and the conveyor at the deposit region at a first predetermined speed, the first and second consolidation stages at a second and third predetermined speeds, and at the suction gap either not at all or at a fourth predetermined equal to at most substantially less than the second predetermined speed.

IPC Classes  ?

• D01D 5/088 - Cooling filaments, threads or the like, leaving the spinnerettes
• D01D 5/14 - Stretch-spinning methods with flowing liquid stretching media
• D01D 5/22 - Formation of filaments, threads, or the like with a crimped or curled structureFormation of filaments, threads, or the like with a special structure to simulate wool
• D01D 5/23 - Formation of filaments, threads, or the like with a crimped or curled structureFormation of filaments, threads, or the like with a special structure to simulate wool by asymmetrical cooling of filaments, threads, or the like, leaving the spinnerettes
• D01D 5/34 - Core-skin structureSpinnerette packs therefor
• D01D 13/02 - Elements of machines in combination
• D04H 3/16 - Non woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic yarns or filaments produced by welding with bonds between thermoplastic filaments produced in association with filament formation, e.g. immediately following extrusion
• D02G 1/00 - Producing crimped or curled fibres, filaments, yarns or threads, giving them latent characteristics

Goods & Services

Machines, parts thereof and installations composed thereof for processing plastic, namely, plastic processing machines and film extrusion machines; extruders being film and sheet extrusion moulding machines, winding machines, extrusion moulding machines for the manufacture of tubular films, flat films, panels, coatings, laminations, deep-drawn films, and fleeces made of plastic; parts for the aforementioned machines, namely, blown film machine tool dies, cooling piston rings and heat sinks, screw extruder conveyors and vacuum conveyors, brush rollers, spreader rollers, cooling roller conveyors and cooling roller bearings for film winders Electrical and electronic control and regulating apparatus, namely, electronic controllers for industrial measuring systems for temperature control, pressure control, tension control and torque control of plastic processing machines and film extrusion machines Clothing, headgear and footwear for medical staff and patients, namely, orthopedic footwear, protective head covers for medical use, medical gowns; protective clothing for medical use, in particular protective surgical scrub suits for medical staff and protective aprons for medical use, protective gloves for medical use, medical gowns; protective face masks for medical staff for medical use; protective mouth masks for the face for medical use; protective visors for medical use; protective googles for medical use, namely, eye protectors for post-surgery eye protection; face masks for medical use for protection against bacteria, viruses or toxic substances; disposable gloves for surgical use; surgical shoe covers; clothing especially for operating rooms, in particular gowns, coats and drapes for surgical use; surgical caps; surgical sterile sheets and drapes for medical use; hair nets for medical staff and patients; orthopedic braces and supports for medical use Non-woven textile fabrics; textile goods and substitutes for textile goods, namely, felt and non-woven textile fabrics, fiberglass fabrics for textile use, textile substitute materials made from synthetic materials, non-woven textile fabrics for home and commercial interiors, textile fabric for the protection of sensitive equipment and packaging, non-woven textile fabrics for the manufacture of clothing, bags, bandages, protective face masks for medical staff for medical use, surgical drapes, diaper changing cloths for babies, feminine hygiene pads, household furnishings, bed linen made of textile fabrics, fabric wadding for water filtering and air filtering, and geotextiles for the purposes of recultivation, plant support, absorption, filtration, separation, stabilization and reinforcement of the soil

Abstract

A nonwoven laminate having at least two nonwoven layers is made by first spinning, cooling, and stretching, first crimped multicomponent filaments to form a first nonwoven web that is deposited on a deposition device. Then second continuous continuous filaments including an elastomer based on polypropylene are spun, cooled, and stretched to form a second nonwoven web that is deposited on the first nonwoven web and thereby forming the nonwoven laminate that it then consolidated.

IPC Classes  ?

• B32B 5/02 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by structural features of a layer comprising fibres or filaments
• B32B 5/26 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by the presence of two or more layers which comprise fibres, filaments, granules, or powder, or are foamed or specifically porous one layer being a fibrous or filamentary layer another layer also being fibrous or filamentary
• B32B 27/32 - Layered products essentially comprising synthetic resin comprising polyolefins
• B32B 37/00 - Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
• B32B 37/06 - Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the heating method
• D01F 6/06 - Monocomponent man-made filaments or the like of synthetic polymersManufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds from polyolefins from polypropylene
• D04H 3/007 - Addition polymers
• D04H 3/16 - Non woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic yarns or filaments produced by welding with bonds between thermoplastic filaments produced in association with filament formation, e.g. immediately following extrusion
• B32B 38/00 - Ancillary operations in connection with laminating processes

Abstract

The invention relates to a film installation (1) and a method for producing a film web (11), in particular a cast film installation or smoothing calender installation (3), having: a machine direction (26) in which the film web (11) is conveyed through the film installation (1); a roll apparatus (18) which processes a film material melt (7) and comprises at least one film-producing roll (19) and a film-producing gap having temperature control apparatuses (18, 20, 22, 23, 24) for thermally treating the film web (11); and a stretching apparatus (20) for stretching the film web (11), wherein the stretching apparatus (20) is situated downstream of the at least one film-producing roll (19) in the machine direction (26), circumventing a critical cooling section (53). The invention further relates to the use of a roll apparatus (18) which processes film material melt (7).

IPC Classes  ?

• B29C 55/06 - Shaping by stretching, e.g. drawing through a dieApparatus therefor of plates or sheets uniaxial, e.g. oblique parallel with the direction of feed
• B29D 7/01 - Films or sheets
• B29C 41/26 - Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped articleApparatus therefor for making articles of indefinite length by depositing flowable material on a rotating drum
• B29C 43/24 - Calendering

Abstract

A nonwoven fabric and a method of production of said nonwoven fabric are disclosed, wherein the nonwovens fabric comprises at least one layer, said layer comprising endless filaments, - which comprise at least a first polymeric material (A) and a second polymeric material (B) having its melting point lower than the first polymeric material A, - wherein the second polymeric material (B) extends in the longitudinal direction of the filament and forms at least a part of the surface of the filament and - the at least one layer of endless filaments comprises filament-to-filament bonds formed of the second polymeric material (B), wherein all components of the filaments are arranged across the cross-section of the filament in a non-crimpable configuration and the nonwoven fabric has a structural softness of at least 80 (m4mm2g-2).

IPC Classes  ?

• D04H 3/007 - Addition polymers
• D01F 8/04 - Conjugated, i.e. bi- or multicomponent, man-made filaments or the likeManufacture thereof from synthetic polymers
• D04H 3/011 - Polyesters
• D04H 3/147 - Composite yarns or filaments

Abstract

A nonwoven web is made by first depositing fibers as a nonwoven web in a deposition area, then conveying the web away from the deposition area in a web-travel direction, preconsolidating the web in the path, and passing the preconsolidated web between a pair of rollers that compress and final consolidate the preconsolidated web, One of the rollers is separated from the web such that final consolidation of the web at a starting level is stopped and at the same time or immediately beforehand upstream preconsolidation of the web increased. After separating the one roller from the web, another roller is engaged with the web at the consolidation station and then final consolidation is recommenced, whereupon upstream preconsolidation of the web is reduced back to the starting level.

IPC Classes  ?

• D04H 1/44 - Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling
• D04H 1/559 - Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving the fibres being within layered webs
• D04H 1/64 - Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives the bonding agent being applied in wet state, e.g. chemical agents in dispersions or solutions
• D04H 1/724 - Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged forming webs during fibre formation, e.g. flash-spinning
• D21G 1/00 - CalendersSmoothing apparatus
• D04H 3/14 - Non woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic yarns or filaments produced by welding
• D01D 5/08 - Melt-spinning methods
• D01D 5/098 - Melt-spinning methods with simultaneous stretching
• D01H 3/00 - Spinning or twisting machines in which the product is wound-up intermittently, e.g. mules
• D01H 3/16 - Spindle-driving arrangements

Abstract

The invention relates to a method for operating a winding device. The invention further relates to a winding device. The winding device according to the invention comprises a winding shaft that is rotatable about its own longitudinal axis, the winding shaft being clampable in a first clamp and a second clamp of the winding device, the second clamp preferably being situated opposite the first clamp. The winding shaft has at least one critical rotational speed. The winding device also comprises a control unit and a drive for rotating the winding shaft. The method according to the invention is characterised by steps in which at least one critical rotational speed of the winding shaft is determined in a prior step. The current rotational speed of the winding shaft is also measured continuously, and the measured value is made available to the control unit. The control unit also compares a change to the tensile stress in the winding shaft as the current rotational speed approaches a critical rotational speed. The tensile stress in the winding shaft changes as the current rotational speed approaches a critical speed.

IPC Classes  ?

• B65H 18/02 - Supporting web roll
• B65H 18/10 - Mechanisms in which power is applied to web-roll spindle

Abstract

The invention relates to various aspects in the production of extrusion products. The properties of extruded articles are dependent significantly, in addition to their formulation, also on the setting variables and in particular on the thus resulting process variables. The setting variables and in particular the process variables thus represent a state of the extrusion process characterized as “fingerprint”. The thus claimed invention takes into account these facts and supports the operator of a production plant to detect earlier changes in quality and to systematically counteract a deterioration in the quality.

IPC Classes  ?

• B29C 48/92 - Measuring, controlling or regulating
• B29C 48/08 - Flat, e.g. panels flexible, e.g. films
• G05B 19/418 - Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM]

Abstract

A dryer for a web of textile material having at least one dryer compartment, in which at least one air-permeable cylinder is rotatably disposed, around which the web of material may partially loop so that heated drying air may flow through the web of material. At least one fan is provided by which humid drying air from the inside the at least one cylinder may be suctioned off from a front-sided opening of the at least one cylinder and discharged as discharge air through a duct. The dryer includes at least one sensor for determining the humidity of the discharge air flow, the data thereof being processed in a control with the initial humidity of the web of material and the humidity of the fresh air flow for closed loop control of the evaporative capacity of the dryer.

IPC Classes  ?

• F26B 3/00 - Drying solid materials or objects by processes involving the application of heat
• F26B 21/08 - Humidity
• F26B 3/06 - Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air the gas or vapour flowing through the materials or objects to be dried
• F26B 13/08 - Machines or apparatus for drying fabrics, fibres, yarns, or other materials in long lengths, with progressive movement with movement in a sinuous or zig-zag path using rollers
• F26B 13/30 - Arrangements of devices using drying processes not involving heating for applying suction, e.g. through perforated rollers
• F26B 21/10 - TemperaturePressure
• F26B 21/12 - Velocity of flowQuantity of flow
• F26B 25/22 - Controlling the drying process in dependence on liquid content of solid materials or objects

Abstract

The invention relates to a method for producing a nonwoven fabric from fibres, wherein the fibres are spun by means of at least one spinneret, are cooled and then deposited on a collection device to form a nonwoven web. The nonwoven web undergoes hot fluid bonding during at least two consecutive bonding steps. In a first bonding step, the surface of the nonwoven web is subjected to a hot fluid and, in a second bonding step, the surface of the nonwoven web is also subsequently subjected to a hot fluid and, in addition and at the same time, surface pressure is exerted on the nonwoven web.

IPC Classes  ?

• B29C 71/02 - Thermal after-treatment
• B32B 37/06 - Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the heating method
• D01D 5/088 - Cooling filaments, threads or the like, leaving the spinnerettes
• D01D 5/30 - Conjugate filamentsSpinnerette packs therefor
• D01D 5/32 - Side-by-side structureSpinnerette packs therefor
• D01D 5/34 - Core-skin structureSpinnerette packs therefor
• D01F 8/06 - Conjugated, i.e. bi- or multicomponent, man-made filaments or the likeManufacture thereof from synthetic polymers with at least one polyolefin as constituent
• D02J 1/22 - Stretching or tensioning, shrinking or relaxing, e.g. by use of overfeed and underfeed apparatus, or preventing stretch
• D04H 3/14 - Non woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic yarns or filaments produced by welding
• D04H 3/16 - Non woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic yarns or filaments produced by welding with bonds between thermoplastic filaments produced in association with filament formation, e.g. immediately following extrusion
• D06M 10/02 - Physical treatment of fibres, threads, yarns, fabrics or fibrous goods made from such materials, e.g. ultrasonic, corona discharge, irradiation, electric currents or magnetic fieldsPhysical treatment combined with treatment with chemical compounds or elements ultrasonic or sonicCorona discharge
• D04H 3/147 - Composite yarns or filaments
• D04H 1/558 - Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving in combination with mechanical or physical treatments other than embossing
• B29C 71/00 - After-treatment of articles without altering their shapeApparatus therefor
• B32B 38/00 - Ancillary operations in connection with laminating processes

Abstract

An apparatus for making spunbonded nonwoven from continuous thermoplastic filaments has a spinneret for downwardly emitting the continuous filaments in a filament direction, a cooling chamber directly beneath the spinneret for receiving the filaments from the spinneret and cooling the spun filaments with cooling air and having relative to a longitudinally extending machine direction a pair of longitudinal sides extending parallel to the machine direction and a pair of transverse sides extending substantially perpendicular to the machine direction between the longitudinal sides. Respective air-supply manifolds on the transverse sides feed cooling air therefrom into the cooling chamber. The cooling air is extracted from the cooling chamber at the longitudinal sides. A stretcher directly beneath the cooling chamber receives and elongates the cooled filaments, and a device deposits the stretched filaments as a band and conveys the band off in the machine direction.

IPC Classes  ?

• D04H 3/16 - Non woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic yarns or filaments produced by welding with bonds between thermoplastic filaments produced in association with filament formation, e.g. immediately following extrusion

Abstract

An apparatus for making spunbonded nonwovens has a spinneret for emitting continuous thermoplastic filaments in a filament-travel direction, a cooling chamber downstream in the direction from the spinneret for cooling the spun filaments with cooling air, two manifolds on opposite sides of the cooling chamber opening transversely of the direction into the cooling chamber, and a respective conduit having a conduit cross-sectional area and connected to each manifold for feeding cooling air thereto. The conduit cross-sectional area increases toward the manifold to a manifold cross-sectional area, and manifold cross-sectional area is at least twice as large as the conduit cross-sectional area. At least one flow straightener is provided upstream from the cooling chamber in each manifold for orienting air flow in an air-flow direction, and at least one perforated planar homogenizing element is provided in each manifold for homogenizing the cooling air flow.

IPC Classes  ?

• D04H 1/736 - Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged characterised by the apparatus for arranging fibres
• D04H 1/76 - Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres otherwise than in a plane, e.g. in a tubular way
• D04H 3/077 - Stick, rod or solid cylinder shaped

Abstract

A semifinished product for making a composite fiber molded part is made by first spinning from a row of orifices of a spinning nozzle low-melting fibers of a thermoplastic. These low-melting fibers are then combined into a laminated semifinished product with high-melting reinforcement fibers of the same thermoplastic but having a melting temperature higher than the melting temperature of the low-melting fibers.

IPC Classes  ?

• C08J 5/04 - Reinforcing macromolecular compounds with loose or coherent fibrous material
• B29B 11/16 - Making preforms characterised by structure or composition comprising fillers or reinforcements
• B29B 15/10 - Coating or impregnating
• B29C 70/46 - Shaping or impregnating by compression for producing articles of definite length, i.e. discrete articles using matched moulds, e.g. for deforming sheet moulding compounds [SMC] or prepregs
• B29C 70/50 - Shaping or impregnating by compression for producing articles of indefinite length, e.g. prepregs, sheet moulding compounds [SMC] or cross moulding compounds [XMC]
• B29C 51/00 - Shaping by thermoforming, e.g. shaping sheets in matched moulds or by deep-drawingApparatus therefor
• B29C 70/34 - Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or coreShaping by spray-up, i.e. spraying of fibres on a mould, former or core and shaping or impregnating by compression
• B29C 70/02 - Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising combinations of reinforcements and fillers incorporated in matrix material, forming one or more layers, with or without non-reinforced or non-filled layers
• B29C 70/04 - Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
• B29C 70/06 - Fibrous reinforcements only
• B29C 70/08 - Fibrous reinforcements only comprising combinations of different forms of fibrous reinforcements incorporated in matrix material, forming one or more layers, with or without non-reinforced layers
• B29C 70/40 - Shaping or impregnating by compression
• B32B 5/06 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by structural features of a layer comprising fibres or filaments characterised by a fibrous layer needled to another layer, e.g. of fibres, of paper
• B29C 70/18 - Fibrous reinforcements only characterised by the structure of fibrous reinforcements using fibres of substantial or continuous length in the form of a mat, e.g. sheet moulding compound [SMC]
• B29C 70/16 - Fibrous reinforcements only characterised by the structure of fibrous reinforcements using fibres of substantial or continuous length
• B32B 5/26 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by the presence of two or more layers which comprise fibres, filaments, granules, or powder, or are foamed or specifically porous one layer being a fibrous or filamentary layer another layer also being fibrous or filamentary
• B29K 21/00 - Use of unspecified rubbers as moulding material
• B29K 101/12 - Thermoplastic materials

IPC Classes  ?

• G05B 19/418 - Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM]

Abstract

The invention relates to a method for making a spunbonded high loft nonwoven web comprising crimped multicomponent fibers, the process comprising continuously spinning the fibers, directing the fibers to a spin-belt by deflectors and/or air streams, laying down the fibers on the spinbelt and pre-consolidating the fibers after laydown using one or more pre-consolidation rollers to form a pre-consolidated web, wherein a first component of the fibers comprises a PP homopolymer and a second component of the fibers comprises a PP/PE copolymer, wherein the pre-consolidation rollers are operated at a temperature of smaller 110° C. and/or a linear contact force of smaller 5 N/mm.

IPC Classes  ?

• D04H 3/14 - Non woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic yarns or filaments produced by welding
• D01D 5/098 - Melt-spinning methods with simultaneous stretching
• D04H 1/50 - Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by treatment to produce shrinking, swelling, crimping or curling of fibres
• D04H 3/147 - Composite yarns or filaments
• D01D 5/22 - Formation of filaments, threads, or the like with a crimped or curled structureFormation of filaments, threads, or the like with a special structure to simulate wool
• D01F 8/06 - Conjugated, i.e. bi- or multicomponent, man-made filaments or the likeManufacture thereof from synthetic polymers with at least one polyolefin as constituent
• D04H 3/007 - Addition polymers
• D04H 3/16 - Non woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic yarns or filaments produced by welding with bonds between thermoplastic filaments produced in association with filament formation, e.g. immediately following extrusion

Abstract

The invention relates to a method for obtaining an evaluation, for determining an evaluation, for classification and provision. Packages and containers having plastic and/or metal are becoming increasingly popular worldwide. From a consumer point of view, products can be bought therein, wherein the packages and containers offer, inter alia, the advantages of cost-effective production, an aroma barrier, low weight and easy disposability. From the point of view of the manufacturing industry, however, packages and products must be handled as products. The present invention proposes a solution that helps to keep the plastics and metals in the recycling system more effectively than before and even to return plastics and metals from waste into the recycling system.

IPC Classes  ?

• G06Q 10/00 - AdministrationManagement
• G06Q 30/06 - Buying, selling or leasing transactions
• G06Q 50/28 - Logistics, e.g. warehousing, loading, distribution or shipping

Abstract

The invention relates to a method for producing a multilayer plastic web having at least one first layer of foamed plastic, and a second layer, which is a cover layer connected to the first layer. The method makes it possible to produce the multi-layer plastic web by means of co-extrusion and optionally, the use of recycled material. A possible starting material for the multi-layer plastic web is polyethylene terephthalate. Nitrogen can also be used as the blowing agent. Overall, a multi-layer plastic web having unique material properties, and a packaging tray having unique properties can be attained in accordance with the invention.

IPC Classes  ?

• B29C 44/24 - Making multilayered articles
• B32B 27/06 - Layered products essentially comprising synthetic resin as the main or only constituent of a layer next to another layer of a specific substance
• B29C 44/50 - Feeding the material to be shaped into an open space or onto moving surfaces, i.e. to make articles of indefinite length using pressure difference, e.g. by extrusion or by spraying
• B29C 48/305 - Extrusion nozzles or dies having a wide opening, e.g. for forming sheets

Abstract

The invention relates to a spunbonded nonwoven having crimped multicomponent fibers, wherein a first component of the multicomponent fibers consists of a first thermoplastic polymer material comprising a first thermoplastic base polymer and a second component of the multicomponent fibers consists of a second thermoplastic polymer material comprising a second thermoplastic base polymer that is different from the first base polymer. The at least one of the first polymer material or the second polymer material is a polymer blend that comprises, further to the respective base polymer, between 1 and 10 weight percent of a high melt flow rate polymer that has a melt flow rate of between 600 and 3,000 g/10 min. The fibers have a linear mass density of less than 1.5 denier. The average crimp number of the crimped multicomponent fibers is in the range of at least 5 and preferably at least 8 crimps per cm in the fiber. The invention further relates to a method for making such spunbonded nonwoven, a multilayer fabric wherein at least one layer comprises such spunbonded nonwoven and a hygiene product comprising such spunbonded nonwoven or multilayer fabric.

IPC Classes  ?

• D04H 3/00 - Non woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
• D04H 3/018 - Non woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the shape
• D04H 3/007 - Addition polymers
• D01D 5/22 - Formation of filaments, threads, or the like with a crimped or curled structureFormation of filaments, threads, or the like with a special structure to simulate wool
• D01F 1/10 - Other agents for modifying properties
• D01F 8/06 - Conjugated, i.e. bi- or multicomponent, man-made filaments or the likeManufacture thereof from synthetic polymers with at least one polyolefin as constituent
• D04H 3/14 - Non woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic yarns or filaments produced by welding
• D01D 5/098 - Melt-spinning methods with simultaneous stretching
• D04H 3/147 - Composite yarns or filaments
• D04H 3/16 - Non woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic yarns or filaments produced by welding with bonds between thermoplastic filaments produced in association with filament formation, e.g. immediately following extrusion
• D01F 6/46 - Monocomponent man-made filaments or the like of synthetic polymersManufacture thereof from mixtures of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds as major constituent with other polymers or low-molecular-weight compounds of polyolefins

Abstract

The invention relates to a spunbonded fabric of endless filaments made of thermoplastic plastic, wherein the endless filaments are designed as multi-component filaments having a core/sheath configuration. The filaments contain at least one lubricant, the lubricant being present exclusively or at least to 90 wt. % in the core component. The mass ratio between the core component and the sheath component is 65:35 to 80:20. The proportion of the lubricant is 250 to 5500 ppm with respect to the total filament.

IPC Classes  ?

• D01F 1/10 - Other agents for modifying properties
• D01F 8/06 - Conjugated, i.e. bi- or multicomponent, man-made filaments or the likeManufacture thereof from synthetic polymers with at least one polyolefin as constituent
• D04H 3/147 - Composite yarns or filaments
• D04H 3/16 - Non woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic yarns or filaments produced by welding with bonds between thermoplastic filaments produced in association with filament formation, e.g. immediately following extrusion
• D01D 5/098 - Melt-spinning methods with simultaneous stretching

Abstract

Extruder screws are subject to corrosion-related and/or abrasive wear, in particular when used in the processing of plastics with a high filler content and/or containing flame retardants and/or requiring high processing temperatures. The invention therefore relates to a wear protection for an extruder screw which wear protection can be achieved by way of a surface treatment of the extruder screw and simultaneous or subsequent hardening and tempering of the extruder screw.

IPC Classes  ?

• B29C 48/505 - Screws
• B29C 48/25 - Component parts, details or accessoriesAuxiliary operations
• C22C 38/20 - Ferrous alloys, e.g. steel alloys containing chromium with copper
• C22C 38/54 - Ferrous alloys, e.g. steel alloys containing chromium with nickel with boron
• C23C 22/00 - Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals

Abstract

An apparatus has a particle and/or fiber-making device and a foraminous endless belt extending in a longitudinal travel direction. A pair of horizontally spaced end rollers between which the belt is stretched horizontally receive fibers or particles from the device. A rotatable support roller between the end rollers directly engages and supports the belt, extends a full width of the belt, and has a diameter of less than 200 mm.

IPC Classes  ?

• D01D 10/04 - Supporting filaments or the like during their treatment
• D01D 5/098 - Melt-spinning methods with simultaneous stretching
• D04H 3/16 - Non woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic yarns or filaments produced by welding with bonds between thermoplastic filaments produced in association with filament formation, e.g. immediately following extrusion
• B29B 13/06 - Conditioning or physical treatment of the material to be shaped by drying
• D04H 3/02 - Non woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of forming fleeces or layers, e.g. reorientation of yarns or filaments
• D04H 1/70 - Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres
• D01D 4/02 - Spinnerettes

Abstract

The invention relates to a dryer (1) for a textile material web (5) having at least one dryer chamber (2), in which at least one air-permeable drum (3-3c) is rotatably arranged, which can be entwined at least in part by the material web (5) and wherein heated drying air can flow through the material web (5), and wherein there is at least one ventilator (17) by means of which moist drying air can be suctioned from the inside of the drum (3-3c) from an opening in the end face of the at least one drum (3-3c) and discharged by means of a duct (14) as exhaust (13). The dryer (1) has at least one sensor for determining the moisture of the exhaust flow, the data of which is processed in a controller (30) together with the starting moisture of the material web (5) and the moisture of the fresh air flow and the evaporating power of the dryer (1) is thus regulated. The invention further relates to a method, to a module, and to a system for determining the residual moisture of a material web continuously running through a dryer.

IPC Classes  ?

• F26B 3/06 - Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air the gas or vapour flowing through the materials or objects to be dried
• F26B 13/06 - Machines or apparatus for drying fabrics, fibres, yarns, or other materials in long lengths, with progressive movement with movement in a sinuous or zig-zag path
• F26B 21/08 - Humidity
• F26B 21/10 - TemperaturePressure
• F26B 21/12 - Velocity of flowQuantity of flow
• F26B 25/22 - Controlling the drying process in dependence on liquid content of solid materials or objects

Abstract

The invention relates to a method for producing a nonwoven fabric from fibres, wherein the fibres are spun by means of at least one spinneret, are cooled and then deposited on a collection device to form a nonwoven web. The nonwoven web undergoes hot fluid bonding during at least two consecutive bonding steps. In a first bonding step, the surface of the nonwoven web is subjected to a hot fluid and, in a second bonding step, the surface of the nonwoven web is also subsequently subjected to a hot fluid and, in addition and at the same time, surface pressure is exerted on the nonwoven web.

IPC Classes  ?

• D04H 1/558 - Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving in combination with mechanical or physical treatments other than embossing
• D04H 3/147 - Composite yarns or filaments
• B30B 5/06 - Presses characterised by the use of pressing means other than those mentioned in groups and wherein the pressing means is in the form of an endless band co-operating with another endless band
• B30B 15/34 - Heating or cooling presses or parts thereof

Abstract

The invention relates to various aspects in the production of extrusion products. The properties of extruded articles vary not only in their formulation, but also on the adjusting variables and in particular with thus resulting process data. The adjustment variables and in particular the process variables thus represent a state of the extrusion process characterised as "fingerprint". The thus claimed invention takes into account these facts and supports the operator of a production plant to detect earlier changes in quality and to systematically counteract a deterioration in the quality.

IPC Classes  ?

• B29C 47/92 - Measuring, controlling or regulating
• G05B 23/02 - Electric testing or monitoring

Abstract

The invention relates to a method for producing a fleece from fibers or filaments in a fleece production plant, wherein the fibers or filaments are spun by means of at least one spinning device, then cooled by at least one cooling device and placed on a depositing apparatus as a fleece web. A reference parameter is provided and, during ongoing operation of the plant, at least two input parameters, which differ from the reference parameter, are measured using measurement devices. An output parameter corresponding to the reference parameter is identified from said measured input parameters by means of at least one evaluation apparatus.

IPC Classes  ?

• D04H 3/02 - Non woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of forming fleeces or layers, e.g. reorientation of yarns or filaments
• D04H 3/14 - Non woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic yarns or filaments produced by welding
• D04H 3/16 - Non woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic yarns or filaments produced by welding with bonds between thermoplastic filaments produced in association with filament formation, e.g. immediately following extrusion

Abstract

The plastic extrusion facility comprises a plurality (1) of facility components (2), the plurality (1) of facility components (2) including an extruder (2) and a collection device (4) for collecting the extruded plastic. The plastic extrusion facility comprises a user interface (5), the user interface (5) being designed for the input and output of data relating to the plastic extrusion facility. The user interface (5) contains a mobile terminal comprising a display with a graphical surface (6), and a camera (7). At least one information source (11, 13, 14, 8), and preferably a plurality (1) of information sources (8), are associated with the plastic extrusion facility. The user interface (5) is designed such that it offers access to the at least one information source (11, 13, 14, 8) and preferably to the plurality (1) of information sources (8).

IPC Classes  ?

• B29C 47/92 - Measuring, controlling or regulating
• B29C 47/08 - Component parts, details or accessories; Auxiliary operations
• H04L 29/08 - Transmission control procedure, e.g. data link level control procedure
• H04W 8/24 - Transfer of terminal data

Abstract

The invention relates to the detection and use of film topography (23) of a film web (13, 40, 51) produced in blow film or casting film methods for improving the quality of the film web (13, 40, 51). In particular, film topography (23) can be quantitatively detected using said the invention. In another aspect of the invention, the film topography (23) is analysed using a pattern recognition algorithm and is optionally allocated an error image (50). This information is used in order to improve the quality of the film web (13, 40, 51) by controlling action recommendations dependent on the error image and to quantitatively detect the flatness of a film web (13, 40, 51). The invention also relates to an influencing element (30) for influencing the properties of a film web (13, 40, 51) in the position where the film topography (23) is determined.

IPC Classes  ?

• B29C 47/92 - Measuring, controlling or regulating
• G01B 11/30 - Measuring arrangements characterised by the use of optical techniques for measuring roughness or irregularity of surfaces
• B29C 55/28 - Shaping by stretching, e.g. drawing through a dieApparatus therefor of blown tubular films, e.g. by inflation

Abstract

The invention relates to the determination of the optical quality of a film. On the one hand, a correlation of the obtained measured values with the production parameters, which are detected in a time-synchronous manner at the extrusion plant, is carried out. On the other hand, a correlation of said obtained measurement data with the geometric and/or functional properties of a film, for example the water vapor permeability, is carried out. The obtained correlation of data is used in the process for controlling the running production process of the film to an optimum operating point. Consequently, the resulting functional properties of a film are improved in an automated manner and met according to the desired specifications. The operator can predetermine which geometric and/or functional properties of a film are accepted as a control variable.

IPC Classes  ?

• B29C 47/92 - Measuring, controlling or regulating
• G05B 23/02 - Electric testing or monitoring

Abstract

The invention relates to a production method for a calender roll, which is distinguished in particular by the fact that the calender roll is annealed, to a method for providing a calender system, to a calendar roll, and to a calender system. The calender rolls known in the prior art are edge-layer hardened, annealed at a lower temperature, and in particular tend to form indentations in the first months of use. As a result, said calender rolls have to be re-ground and possibly surface-finished again. The invention provides an improvement or an alternative to the prior art.

IPC Classes  ?

• C21D 9/38 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for roll bodies
• C21D 1/25 - Hardening, combined with annealing between 300 °C and 600 °C, i.e. heat refining ("Vergüten")
• D21G 1/02 - RollsTheir bearings
• B29C 43/46 - Rollers

Abstract

The invention relates to various aspects in the production and further processing of plastic sheet material, in particular a spun-bonded non-woven fabric, a melt-blown non-woven fabric, a composite non-woven fabric, a blown film, a flat film, a plastic board or a plastic panel. A core aspect in the value chain of sheet material is a method and device for providing, retrieving and using a data element for exchanging in an over-lapping step-wise manner, a plurality of different data elements for producing the end product within the value chain of the sheet material. Within the value chain, it is possible to optimize the method using said data, to improve the construction of the used machines and systems and to improve the system technology as well as method technology for producing the sheet material.

IPC Classes  ?

• G05B 19/418 - Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM]
• B29C 47/92 - Measuring, controlling or regulating

Abstract

The invention relates to a method for producing a plastic film from a thermoplastic material in a film-production facility by extrusion out of a nozzle, the plastic or plastic melt of the nozzle being supplied by means of at least one extruder. The tubular film or web of film is then extruded from the nozzle and wound up by means of a winding device to form a film reel or a film coil. A reference parameter is provided, and when the facility is in operation, at least two, preferably at least three input parameters different from the reference parameter are measured by means of measuring devices. An output parameter corresponding to the reference parameter is determined from said measured input parameters by means of at least one evaluation device.

IPC Classes  ?

• B29C 47/92 - Measuring, controlling or regulating
• B29C 47/08 - Component parts, details or accessories; Auxiliary operations

Abstract

A method and a device for the quick navigation of users through the user interface of a plant for manufacturing a product from thermoplastic, an extruder being operated for plastification of a thermoplastic, and a method and a plant for manufacturing a product from thermoplastic allow quick changing between user views of a machine or plant control. An input device for entering representative signals from a customized input library is used, which signals are linked to actions in a relational database, wherein the actions cause a rapid change between user views of a machine or plant control. The rapid change between user views makes the machine or plant control faster, and the customized input library makes the control more intuitive.

IPC Classes  ?

• G09G 1/00 - Control arrangements or circuits, of interest only in connection with cathode-ray tube indicators
• G06F 3/0482 - Interaction with lists of selectable items, e.g. menus
• G06F 3/0488 - Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser using a touch-screen or digitiser, e.g. input of commands through traced gestures
• B29C 48/92 - Measuring, controlling or regulating
• G06F 3/023 - Arrangements for converting discrete items of information into a coded form, e.g. arrangements for interpreting keyboard generated codes as alphanumeric codes, operand codes or instruction codes
• G06F 3/0354 - Pointing devices displaced or positioned by the userAccessories therefor with detection of 2D relative movements between the device, or an operating part thereof, and a plane or surface, e.g. 2D mice, trackballs, pens or pucks

Abstract

A plastic-extrusion system comprises a plurality of system components including an extruder and a collection device for collecting the extruded plastic material. The plastic-extrusion system has an operator station designed for taking in and outputting data of the plastic-extrusion system. The operator station further has a mobile terminal including a screen of a graphical user interface as well as a camera. The plastic-extrusion system is associated with at least one information source, and preferably a plurality of information sources. The operator station is configured so as to provide access to the at least one information source, and preferably to the plurality of information sources.

IPC Classes  ?

• B29C 48/92 - Measuring, controlling or regulating
• H04W 4/02 - Services making use of location information
• H04L 29/08 - Transmission control procedure, e.g. data link level control procedure
• B29C 48/025 - General arrangement or layout of plant
• B29C 48/28 - Storing of extruded material, e.g. by winding up or stacking
• G06Q 10/10 - Office automationTime management

Abstract

A system for making a nonwoven nonwoven spun-bond or melt-blown fabric has a spinneret for spinning fibers or filaments, a cooler downstream of the spinneret for cooling the spun fibers or filaments, a stretcher downstream of the cooler for stretching the cooled fibers or filaments, and a conveyor downstream of the stretcher. The stretched and cooled fibers or filaments are deposited as a nonwoven web on the conveyor. Sensors measure input parameters at the spinneret, at the cooler, at the stretcher, and/or at at least one diffuser or at the conveyor. An evaluating unit for determining an output parameter from the measured input parameter with respect to a predetermined reference parameter.

IPC Classes  ?

• D04H 3/02 - Non woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of forming fleeces or layers, e.g. reorientation of yarns or filaments
• B29C 48/92 - Measuring, controlling or regulating
• D01D 11/00 - Other features of manufacture
• D01D 4/02 - Spinnerettes
• D01D 5/12 - Stretch-spinning methods
• D01D 5/088 - Cooling filaments, threads or the like, leaving the spinnerettes
• B29C 43/24 - Calendering
• B29C 69/02 - Combinations of shaping techniques not provided for in a single one of main groups , e.g. associations of moulding and joining techniquesApparatus therefor of moulding techniques only
• D01D 7/00 - Collecting the newly-spun products
• D01D 5/098 - Melt-spinning methods with simultaneous stretching
• B29C 48/69 - Filters or screens for the moulding material
• B29C 48/05 - Filamentary, e.g. strands
• B29D 99/00 - Subject matter not provided for in other groups of this subclass
• D04H 3/005 - Synthetic yarns or filaments
• B29K 101/12 - Thermoplastic materials
• B29L 31/00 - Other particular articles

Abstract

A plastic film of a thermoplastic synthetic resin is made in a film-making system by extrusion from a die of an extruder. First the plastic is melted and extruded from the die as a tube or web that is, typically after cooling and stretching, formed into a package. At least one reference parameter is provided, and, during continuous operation of the system, two input parameters different from the reference parameter are measured by respective measuring devices An output is determined from these reference parameters and is compared with the reference parameter.

IPC Classes  ?

• B29C 48/92 - Measuring, controlling or regulating
• B29C 48/08 - Flat, e.g. panels flexible, e.g. films
• B29C 48/10 - Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels flexible, e.g. blown foils
• B29C 48/28 - Storing of extruded material, e.g. by winding up or stacking
• B29C 48/355 - Conveyors for extruded articles
• B29C 48/00 - Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired formApparatus therefor
• B29C 48/03 - Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired formApparatus therefor characterised by the shape of the extruded material at extrusion
• B29K 101/12 - Thermoplastic materials
• B29L 7/00 - Flat articles, e.g. films or sheets
• B29L 23/00 - Tubular articles

Abstract

The invention relates to a multi-layer blowing head for a blown film installation, to a blown film installation, and to a method for operating a blown film installation. Specifically, according to the invention, a component is included on the opposite side of a distributor plate of a distributor plate set for a spiral distributor, wherein part of the spiral distributor is formed out of the opposite side of a distributor plate. The blowing head according to the invention for forming a multi-layer melt flow makes it possible, in the case of suitable operating parameters, to prevent the occurrence of spiral strips or at least to make said spiral strips less pronounced.

IPC Classes  ?

• B29C 47/06 - Multilayered articles
• B29C 47/08 - Component parts, details or accessories; Auxiliary operations
• B29C 47/26 - Multiple annular extrusion nozzles
• B29C 47/00 - Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor (extrusion blow-moulding B29C 49/04)

Abstract

The invention relates to a method for making a spunbonded high loft nonwoven web comprising crimped multicomponent fibers, the process comprising continuously spinning the fibers, directing the fibers to a spin-belt by deflectors and/or air streams, laying down the fibers on the spinbelt and pre-consolidating the fibers after laydown using one or more pre-consolidation rollers to form a pre-consolidated web, wherein a first component of the fibers comprises a PP homopolymer and a second component of the fibers comprises a PP/PE copolymer, wherein the pre-consolidation rollers are operated at a temperature of smaller 110° C. and/or a linear contact force of smaller 5 N/mm.

IPC Classes  ?

• D01D 5/08 - Melt-spinning methods
• D01D 5/088 - Cooling filaments, threads or the like, leaving the spinnerettes
• D01D 5/098 - Melt-spinning methods with simultaneous stretching
• D01D 5/23 - Formation of filaments, threads, or the like with a crimped or curled structureFormation of filaments, threads, or the like with a special structure to simulate wool by asymmetrical cooling of filaments, threads, or the like, leaving the spinnerettes
• D01D 5/30 - Conjugate filamentsSpinnerette packs therefor
• D01D 5/32 - Side-by-side structureSpinnerette packs therefor
• D01D 5/34 - Core-skin structureSpinnerette packs therefor
• D01D 10/02 - Heat treatment
• D04H 3/005 - Synthetic yarns or filaments
• D04H 3/14 - Non woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic yarns or filaments produced by welding
• D04H 1/50 - Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by treatment to produce shrinking, swelling, crimping or curling of fibres
• D04H 3/147 - Composite yarns or filaments
• D01D 5/22 - Formation of filaments, threads, or the like with a crimped or curled structureFormation of filaments, threads, or the like with a special structure to simulate wool
• D01F 8/06 - Conjugated, i.e. bi- or multicomponent, man-made filaments or the likeManufacture thereof from synthetic polymers with at least one polyolefin as constituent
• D04H 3/007 - Addition polymers
• D04H 3/16 - Non woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic yarns or filaments produced by welding with bonds between thermoplastic filaments produced in association with filament formation, e.g. immediately following extrusion

Abstract

The invention relates to a nonwoven laminate fabric comprising a meltblown nonwoven layer sandwiched between first and second spundbond nonwoven layers, wherein at least one of the spundbond layers is a high loft spunbond nonwoven layer comprising or consisting of crimped multicomponent fibers.

IPC Classes  ?

• D04H 1/50 - Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by treatment to produce shrinking, swelling, crimping or curling of fibres
• D04H 3/007 - Addition polymers
• D04H 3/147 - Composite yarns or filaments
• D04H 3/16 - Non woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic yarns or filaments produced by welding with bonds between thermoplastic filaments produced in association with filament formation, e.g. immediately following extrusion
• D04H 1/4374 - Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece using different kinds of webs, e.g. by layering webs
• B32B 5/22 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by the presence of two or more layers which comprise fibres, filaments, granules, or powder, or are foamed or specifically porous
• D04H 1/4382 - Stretched reticular film fibresComposite fibresMixed fibresUltrafine fibresFibres for artificial leather
• D04H 1/4391 - Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece characterised by the shape of the fibres
• D04H 1/54 - Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving
• D04H 1/541 - Composite fibres e.g. sheath-core, sea-island or side-by-sideMixed fibres
• D04H 1/559 - Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving the fibres being within layered webs
• D04H 1/56 - Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving in association with fibre formation, e.g. immediately following extrusion of staple fibres
• D04H 3/14 - Non woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic yarns or filaments produced by welding

Abstract

The invention relates to a fabric comprising at least one high loft spunbond nonwoven layer having crimped multicomponent fibers, wherein a first component of the multicomponent fibers comprises a first polymer A and a second component of the multicomponent fibers comprises a blend of the first polymer A and a second polymer B, wherein the melt flow rate of polymer A is at least 25% higher than the melt flow rate of polymer B and wherein the second component comprises at least 40 wt.-% of polymer B.

IPC Classes  ?

• D04H 1/74 - Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being orientated, e.g. in parallel
• D04H 3/007 - Addition polymers
• D04H 3/147 - Composite yarns or filaments
• D04H 1/50 - Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by treatment to produce shrinking, swelling, crimping or curling of fibres
• D02G 3/04 - Blended or other yarns or threads containing components made from different materials
• D04H 1/56 - Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving in association with fibre formation, e.g. immediately following extrusion of staple fibres
• D04H 3/16 - Non woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic yarns or filaments produced by welding with bonds between thermoplastic filaments produced in association with filament formation, e.g. immediately following extrusion
• A61F 13/514 - Backsheet, i.e. the impermeable cover or layer furthest from the skin

Abstract

The invention relates to a spunbonded fabric of endless filaments made of thermoplastic plastic, wherein the endless filaments are designed as multi-component filaments having a core/sheath configuration. The filaments contain at least one lubricant, the lubricant being present exclusively or at least to 90 wt.% in the core component. The mass ratio between the core component and the sheath component is 65:35 to 80:20. The proportion of the lubricant is 250 to 5500 ppm with respect to the total filament.

IPC Classes  ?

• D04H 3/00 - Non woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
• D04H 3/14 - Non woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic yarns or filaments produced by welding
• D01F 8/06 - Conjugated, i.e. bi- or multicomponent, man-made filaments or the likeManufacture thereof from synthetic polymers with at least one polyolefin as constituent
• D01F 8/14 - Conjugated, i.e. bi- or multicomponent, man-made filaments or the likeManufacture thereof from synthetic polymers with at least one polyester as constituent

Abstract

Excretion by a diaper wearer in a diaper is predicted by providing in or on the diaper on the wearer an excretion detector capable of detecting excretion by the diaper wearer and a motion sensor capable of detecting movements of the diaper wearer. The sensor continuously detects and at least temporarily records movements of the diaper wearer, and these detected movements are analyzed to determine movement patterns. Then, on detection of excretion by the detector, a movement pattern immediately preceding the detection of excretion is stored or flagged as a critical movement pattern. Thereafter each time movements matching the critical movement pattern are detected, a signal is sent to a user.

IPC Classes  ?

• A61F 13/42 - Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the bodySupporting or fastening means thereforTampon applicators with wetness indicator or alarm
• G01N 27/04 - Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
• G01P 13/00 - Indicating or recording presence or absence of movementIndicating or recording of direction of movement
• G08B 31/00 - Predictive alarm systems characterised by extrapolation or other computation using updated historic data

Abstract

The invention also relates to a plastic material shaping system (1) and to a method for operating said system comprising a valve system which is designed to selectively feed not only the containers (11, 12) with the granulate (5, 6) but also in particular to feed with the new material components (23, 24) which are to be changed, all additional containers (19, 21) which are to be installed. The material change can be optimized and the required time for changing the material can be reduced.

IPC Classes  ?

• B29C 31/02 - Dispensing from vessels, e.g. hoppers
• B29B 7/60 - Component parts, details or accessoriesAuxiliary operations for feeding, e.g. end guides for the incoming material
• B29B 7/72 - Measuring, controlling or regulating
• B29C 47/08 - Component parts, details or accessories; Auxiliary operations
• B29C 47/10 - Feeding the material to the extruder
• B29C 47/00 - Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor (extrusion blow-moulding B29C 49/04)

Abstract

A coextrusion adapter, including a central conduit having an inlet end and an outlet end and having bottom and top walls that define the height of the central conduit and side walls that define the width of the central conduit, as well as at least one coextrusion conduit having an inlet end and an outlet end. The outlet end feeds into the central conduit near or in the vicinity of the bottom and/or top wall thereof, downstream of the inlet end of the central conduit, and adjusting devices are provided, which are allocated to each outlet end of the at least one coextrusion conduit and are composed of a plurality of adjusting elements, which collectively extend across the width of the outlet end and by actuating drives, are adjustable independently of one another so that it is possible to change the inner width of the respective width section of the outlet end. Adjacent to the outlet end at least one of the side walls has a receiving bore into which it is possible to insert a displacing element that protrudes beyond the side wall into the central conduit.

IPC Classes  ?

• B29C 48/30 - Extrusion nozzles or dies
• B29C 48/31 - Extrusion nozzles or dies having a wide opening, e.g. for forming sheets adjustable
• B29C 48/21 - Articles comprising two or more components, e.g. co-extruded layers the components being layers the layers being joined at their surfaces
• B29C 48/305 - Extrusion nozzles or dies having a wide opening, e.g. for forming sheets
• B29C 48/255 - Flow control means, e.g. valves
• B29C 48/08 - Flat, e.g. panels flexible, e.g. films
• B29C 48/92 - Measuring, controlling or regulating
• B32B 27/08 - Layered products essentially comprising synthetic resin as the main or only constituent of a layer next to another layer of a specific substance of synthetic resin of a different kind
• B29C 48/07 - Flat, e.g. panels
• B29C 48/49 - Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using two or more extruders to feed one die or nozzle

Abstract

The invention relates to a device for producing spunbonded webs from continuous filaments, wherein a spinneret is provided for spinning the filaments, a cooling mechanism is provided for cooling the spun filaments, and a stretching device is provided for stretching the filaments. An intermediate channel is arranged between the cooling mechanism and the stretching device, the intermediate channel comprising at least two converging channel sections which are successively arranged in the flow direction of the filaments. The upper channel section in the flow direction of the filaments is shorter than the lower channel section in the flow direction of the filaments. The ratio of the inlet width BE to the outlet width BA of the first upper channel section is 1.5 to 5.5 and the ratio of the inlet width bE to the outlet width bA of the second lower channel section is 1 to 4.

IPC Classes  ?

• D01D 5/098 - Melt-spinning methods with simultaneous stretching
• D04H 3/16 - Non woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic yarns or filaments produced by welding with bonds between thermoplastic filaments produced in association with filament formation, e.g. immediately following extrusion