Provided are a fiber, a fiber molded body and a fiber product that have an excellent growth inhibitory effect on bacteria and excellent durable hydrophilic properties satisfying anti-sweat and liquid permeability characteristics. The fiber comprises a polyalkylene biguanide compound and at least one nonionic surfactant attached thereto, the nonionic surfactant being selected from the group consisting of a polyalkylene oxide additive type nonionic surfactant and a polyhydric alcohol type nonionic surfactant.
D06M 13/322 - Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials with non-macromolecular organic compoundsSuch treatment combined with mechanical treatment with compounds containing nitrogen
The purpose of the present invention is to provide a heat-fusible composite fiber that suppresses the consumption of fossil resources and imparts both bulkiness and flexibility to non-woven fabrics, and a non-woven fabric using the heat-fusible composite fiber. Provided is a heat-fusible composite fiber in which a first component is configured from a polyester resin and a second component is configured from a polyethylene resin having a lower melting point than the first component, the mixing ratio (weight ratio) of a biomass-derived polyethylene resin and a fossil-resource-derived polyethylene resin in the polyethylene resin being 20:80 to 90:10.
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
D04H 1/541 - Composite fibres e.g. sheath-core, sea-island or side-by-sideMixed fibres
3.
HEAT-BONDABLE COMPOSITE FIBER, METHOD FOR PRODUCING SAME AND NONWOVEN FABRIC USING HEAT-BONDABLE COMPOSITE FIBER
The present invention addresses the problem of providing: a heat-bondable composite fiber which is capable of maintaining crimp stability even if high elongation remains, and which provides a nonwoven fabric with excellent bulkiness and shaping workability that enables following to a complicated shape or processing with a high fiber deformation stress; a method for producing this heat-bondable composite fiber; and a nonwoven fabric which uses this heat-bondable composite fiber. A heat-bondable composite fiber which comprises a first component that contains a polyester-based resin and a second component that contains a polyolefin-based resin having a melting point that is lower than the melting point of the polyester-based resin by 15°C or more, and which has an eccentric core-sheath structure wherein, in a cross-section of the fiber perpendicular to the lengthwise direction, the second component occupies the outer periphery of the fiber. This heat-bondable composite fiber has an elongation at break of 200% or more, a three-dimensional apparent crimp, and a crimp elastic modulus of from 85% to 100%.
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
D04H 1/541 - Composite fibres e.g. sheath-core, sea-island or side-by-sideMixed fibres
The present invention addresses the problem of providing a heat-bondable composite fiber from which a non-woven fabric that has an excellent texture and excellent shaping properties can be obtained. Provided is a heat-bondable composite fiber which comprises a first component that contains a polyester-based resin and a second component that contains a polyolefin-based resin having a melting point lower than that of the polyester-based resin by 15°C or more and which has a concentric core-shell structure in which, in a cross section of a fiber perpendicular to the lengthwise direction of the fiber, the second component occupies the outer circumference of the fiber, wherein elongation at break is 350% or more, and the ratio of elongation at break to fineness is 80%/dtex or more.
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
D04H 1/541 - Composite fibres e.g. sheath-core, sea-island or side-by-sideMixed fibres
5.
Thermo-fusible conjugated fibers and nonwoven fabric using same
An object of the invention is to provide thermo-fusible conjugated fibers capable of suppressing damage to the fibers upon processing the fibers into a nonwoven fabric web. The thermo-fusible conjugated fibers of the invention contain a first component containing a polyester-based resin and a second component containing a polyolefin-based resin, in which a melting point of the second component is 10° C. or more lower than a melting point of the first component, and a work load at break obtained by a tensile test is 1.6 cN·cm/dtex or more. The damage to the fibers is suppressed by the thermo-fusible conjugated fibers of the invention, and therefore the nonwoven fabric with higher quality can be obtained with higher productivity than ever before.
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 1/541 - Composite fibres e.g. sheath-core, sea-island or side-by-sideMixed fibres
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
Shown are thermo-fusible conjugate fibers having a high degree of crystallinity, while a degree of orientation is suppressed, and a bulky and soft nonwoven fabric using the same. The thermo-fusible conjugate fibers have, as a first component, a polyester-based resin, and as a second component, an olefin-based resin having a melting point lower than a melting point of the first component, in which the degree of orientation in the polyester-based resin is 6.0 or less, and the degree of crystallinity therein is 20% or more. The conjugate fibers are preferably sheath-core conjugate fibers in which the first component is a core component and the second component is a sheath component.
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
D04H 1/541 - Composite fibres e.g. sheath-core, sea-island or side-by-sideMixed fibres
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
The present invention addresses the problem of providing a heat-fusible composite fiber which can be processed into a nonwoven fabric web with less damage to the fiber. This heat-fusible composite fiber comprises a first component containing a polyester resin and a second component containing a polyolefin resin. The melting point of the second component is at least 10°C lower than the melting point of the first component. The work of rupture obtained from tensile testing is at least 1.6 cN∙cm/dtex. Since damage to the fiber is lessened with this heat-fusible composite fiber, higher-quality nonwoven fabric can be obtained in a more productive manner than in the past.
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
An object of the invention is to provide thermo-fusible conjugate fibers having a high degree of crystallinity, while a degree of orientation is suppressed, and a bulky and soft nonwoven fabric using the same. The thermo-fusible conjugate fibers of the invention have, as a first component, a polyester-based resin, and as a second component, an olefin-based resin a melting point of which is lower than a melting point of the first component, in which the degree of orientation in the polyester-based resin is 6.0 or less, and the degree of crystallinity therein is 20% or more. The conjugate fibers are preferably sheath-core conjugate fibers in which the first component is a core component and the second component is a sheath component.
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
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 1/541 - Composite fibres e.g. sheath-core, sea-island or side-by-sideMixed fibres
9.
LOW-ELUTION POLYETHYLENE-BASED FIBERS AND NONWOVEN FABRIC USING SAME
The invention is contemplated for providing polyethylene-based fibers in which elution of metal from polyethylene is suppressed as much as possible. The invention relates to polyethylene-based fibers, composed of at least one kind of polyethylene resin, in which a total of content of metal elements such as Na, K, Ca, Fe, Cu, Mg, Mn, Li, Al, Cr, Ni and Zn contained inside the fibers is 40 ppm or less. Moreover, the invention relates to a nonwoven fabric using the polyethylene-based fibers.
D01F 6/04 - 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
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
Provided is a conjugate fiber for air-laid nonwoven fabric manufacture having a planar zig-zag crimp shape before a thermal treatment, such that a uniform web is obtained by air laying with high processability and productivity, and the conjugate fiber develops a spiral crimp when the web is subjected to a thermal treatment to thereby enable the web to shrink significantly, as a result of which a nonwoven fabric can be obtained in which fibers are amassed to a high density.
The conjugate fiber for air-laid nonwoven fabric manufacture is a heat-fusible conjugate fiber in which a first component comprising an olefinic thermoplastic resin is conjugated with a second component comprising an olefinic thermoplastic resin having a melting point higher than that of the first component. The conjugate form is such that the centers of gravity of the conjugate components are mutually different in the fiber cross section, the fiber has a single-yarn fineness of 1 to 10 dtex, a fiber length of 3 to 20 mm, and a planar zig-zag crimp whose crimp shape index (actual length of short fiber/distance between both ends of short fiber) ranges from 1.05 to 1.60, and the web shrinkage upon thermal treatment at 145° C. of a web obtained by an air-laid method is not lower than 40%.
D04H 1/732 - 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 by fluid current, e.g. air-lay
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 1/50 - 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
In particular, an object is to provide a modified cross-section fiber that is split and used and thus can efficiently produce a fine conjugate fiber. The present invention relates to a modified cross-section fiber comprising: (1) a plurality of pieces of conjugate fiber structures comprising a first thermoplastic resin and a second thermoplastic resin having a lower melting or softening point than the first thermoplastic resin and (2) a connected body comprising a third thermoplastic resin having a higher melting or softening point than the second thermoplastic resin, wherein, in an arbitrary fiber cross-section, at least two pieces of the conjugated fiber structure are connected by the connected body.
An object of the present invention is to provide a heat-bondable conjugate fiber ensuring that the crimp configuration stability can be maintained even in the state of leaving elongation of the fiber and bulkiness and softness are imparted to the nonwoven fabric, and a nonwoven fabric using the same. The present invention provides a heat-bondable conjugate fiber comprising a first component containing a polyester-based resin and a second component containing a polyolefin-based resin having a melting point lower than the melting point of said polyester-based resin, wherein said second component is a heat-bondable conjugate fiber accounting for a specific range of the outer fiber circumference and having a side-by-side or eccentric sheath-core structure and the fiber has a specific elongation, a specific range of a three-dimensional actualized crimp and a specific range of a crimp modulus.
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
D02G 1/00 - Producing crimped or curled fibres, filaments, yarns or threads, giving them latent characteristics
D04H 1/42 - 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
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
To provide an add-in material to be added to a porous molded body base, the add-in material being capable of developing a pore of appropriate size efficiently without degrading the formability and productivity of a porous molded body, particularly a porous fired body when producing the porous molded body. A shrinkable fiber composed of a thermoplastic resin and to be dispersed in a base of a porous molded body, particularly a porous fired body, wherein the shrinkable fiber has a fiber diameter of 10 to 40 μm, a fiber length of 1 to 20 mm, and a dry-heat shrinkage percentage of at least 8% when subjected to heat treatment at 80° C. for 5 minutes.
B29C 35/00 - Heating, cooling or curing, e.g. crosslinking or vulcanisingApparatus therefor
D01F 6/04 - 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
D01F 6/00 - Monocomponent man-made filaments or the like of synthetic polymersManufacture thereof
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 6/30 - Monocomponent man-made filaments or the like of synthetic polymersManufacture thereof from copolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds comprising olefins as the major constituent
D01F 8/04 - Conjugated, i.e. bi- or multicomponent, man-made filaments or the likeManufacture thereof from synthetic polymers
14.
DURABLE HYDROPHILIC FIBER HAVING EXCELLENT COLOR FASTNESS, AND MOLDED FIBER AND ABSORBENT ARTICLE COMPRISING SAME
Provided are a fiber, which has very excellent color fastness and high durable hydrophilicity, and a molded fiber, for example a nonwoven fabric, comprising the same; also provided is an absorbent article using the fiber or molded fiber. A fiber which comprises at least one type of thermoplastic resin and to which a fiber treatment agent is attached, wherein the fiber treatment agent comprises at least 25 mass% of a component (A), at least 5 mass% of a component (B), and at least 5 mass% of a component (C), on the basis of the active ingredient, and 0.1-1.0 mass% of the fiber treatment agent is attached with respect to the mass of fiber. Component (A): A sulfuric acid ester salt having a C8-22 hydrocarbon group; Component (B): A sulfosuccinic acid diester salt having a C12-20 hydrocarbon group; Component (C): A phosphoric acid ester salt having a C4-18 hydrocarbon group. A molded fiber primarily comprising the fiber; and an absorbent article obtained using the molded fiber.
A subject of the invention is to provide a fiber and a fibrous formed body, particularly, a nonwoven fabric all having an exceptional color fastness and high liquid absorption properties and high durable hydrophilic properties. This is attained by a fiber essentially based on at least one kind of thermoplastic resin, wherein a fiber treating agent containing component (A) to (D) described below is attached to the fiber, with specific ratio of each of component (A) to (D), wherein (A) is an alkyl phosphate metal salt in which the number of carbons of an alkyl group is less than 10; (B) is a trialkylglycine derivative; (C) is a hydroxycarboxylic acid; and (D) is an alkyl phosphate metal salt in which the number of carbons of alkyl group is in the range of 10 to 14.
D06M 15/647 - Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds containing silicon in the main chain containing polyether sequences
16.
Thermal bonding conjugate fiber and nonwoven fabric using the same
This invention provides a thermal bonding conjugate fiber having excellent compression resistance and nonwoven fabric using the same. Particularly, the nonwoven fabric retains bulkiness obtained under a light load even under a heavy load and reduces a decrease in bulkiness from under a light load to under a heavy load. The thermal bonding conjugate fiber has an eccentric core-sheath structure in which a first component including a polyester resin constitutes a core and a second component including a polyolefin resin having a melting point at least 15° C. lower than that of the polyester resin constitutes a sheath, and a shrinkage ratio of the conjugate fiber after a heat treatment of 120° C. is at least 20%. The nonwoven fabric is obtained by blending the thermal bonding conjugate fiber at a blend ratio of 10 to 60 wt % with one or more types of different thermal bonding fibers.
D02G 3/04 - Blended or other yarns or threads containing components made from different materials
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
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 1/541 - Composite fibres e.g. sheath-core, sea-island or side-by-sideMixed fibres
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 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
An object of the present invention is to provide an antiviral fiber assembly in which an antiviral agent is retained with chemical stability over a long period of time, and which is gentle to the human body. A further object of the present invention is to provide a fiber assembly with cellulose sulfate that can exhibit sufficient antiviral activity over a long period of time. Further, another object of the present invention is to provide a textile product obtained using such a fiber assembly.
The present invention provides a fiber assembly with cellulose sulfate, wherein the hyaluronidase inhibitory activity is 50% or higher; and a process for producing a fiber assembly with cellulose sulfate, including treating a fiber assembly with an aqueous cellulose sulfate solution and drying, then treating the same with a pH buffer solution and drying.
A01N 43/16 - Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atom with one hetero atom six-membered rings with oxygen as the ring hetero atom
A fiber that can exhibit both excellent antistatic properties and high water repellency, and a high bulk nonwoven fabric with a good texture that exhibits high water repellency. More specifically, a highly water repellent fiber that is a conjugate fiber having a plurality of thermoplastic resins as the primary component thereof and having a fiber treatment agent comprising at least Component (A) and Component (B) below deposited thereon at 0.1 to 1.0 wt % in relation to the weight of the fiber, with Component (A) accounting for 75 to 97 wt % and Component (B) accounting for 25 to 3 wt % of the fiber treatment agent: Component (A): polysiloxane Component (B): alkane sulfonate metal salt.
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
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
D06M 15/643 - Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds containing silicon in the main chain
D06M 15/647 - Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds containing silicon in the main chain containing polyether sequences
A fiber bundle is provided that strikes an excellent balance among the properties and performance of the web and articles manufactured using this web, the productivity, processability, and cost. The fiber bundle comprising continuous fibers aligned in one direction is characterized in that the continuous fibers have crimps that form peaks and valleys in the width direction of the fiber bundle, and these crimps have a characteristic value A, defined as the absolute value of a slope with respect to the length direction of the fiber bundle of a straight line that connects the vertex of the peak with the vertex of the valley of adjacent crimps present in a single continuous fiber, of at least 0.3.
D01F 8/04 - Conjugated, i.e. bi- or multicomponent, man-made filaments or the likeManufacture thereof from synthetic polymers
D02G 3/22 - Yarns or threads characterised by constructional features
D02G 3/04 - Blended or other yarns or threads containing components made from different materials
D02G 1/12 - Producing crimped or curled fibres, filaments, yarns or threads, giving them latent characteristics using stuffer boxes
D02G 1/18 - Producing crimped or curled fibres, filaments, yarns or threads, giving them latent characteristics by combining fibres, filaments, or yarns, having different shrinkage characteristics
The present invention provides a thermal bonding conjugate fiber with excellent compression resistance and nonwoven fabric using the same. More specifically, the present invention provides a thermal bonding conjugate fiber and nonwoven fabric using the same, in which the bulkiness of the nonwoven fabric under a light load is retained well even under a heavy load, and the rate of decrease in bulkiness between under a light load and under a heavy load can be reduced. The thermal bonding conjugate fiber with thermal shrinkage properties has an eccentric core-sheath structure in which a first component comprising a polyester resin constitutes a core and a second component comprising a polyolefin resin having a melting point at least 15°C lower than a melting point of the polyester resin constitutes a sheath, and a shrinkage ratio after a heat treatment of 120°C is at least 20% when calculated by a predetermined measurement method. The nonwoven fabric is obtained by blending the thermal bonding conjugate fiber with one or more types of a different thermal bonding fiber, and the thermal bonding conjugate fiber is contained therein at a blend ratio of 10 to 60 wt%.
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
D04H 1/541 - Composite fibres e.g. sheath-core, sea-island or side-by-sideMixed fibres
An object of the present invention is to provide an antiviral fiber assembly in which an antiviral agent is retained with chemical stability over a long period of time, and which is gentle to the human body. A further object of the present invention is to provide a fiber assembly with cellulose sulfate that can exhibit sufficient antiviral activity over a long period of time. Further, another object of the present invention is to provide a textile product obtained using such a fiber assembly. The present invention provides a fiber assembly with cellulose sulfate, wherein the hyaluronidase inhibitory activity is 50% or higher; and a process for producing a fiber assembly with cellulose sulfate, including treating a fiber assembly with an aqueous cellulose sulfate solution and drying, then treating the same with a pH buffer solution and drying.
A01P 1/00 - DisinfectantsAntimicrobial compounds or mixtures thereof
A01N 43/16 - Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atom with one hetero atom six-membered rings with oxygen as the ring hetero atom
A01N 25/34 - Shaped forms, e.g. sheets, not provided for in any other group of this main group
A61L 12/00 - Methods or apparatus for disinfecting or sterilising contact lensesAccessories therefor
D06M 15/00 - Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials with macromolecular compoundsSuch treatment combined with mechanical treatment
To obtain an ultrafine heat-shrinkable conjugate fiber at high productivity, in which a flow-drawing state of a polyester undrawn yarn is realized easily and stably.
By drawing undrawn yarn comprising a conjugated polyester polymer and olefin polymer, a flow-drawing process can be easily and stably realized using conventional production facilities; and the heat-shrinkable fiber, a drawn intermediate, and an ultrafine hot-melt adhesive conjugate fiber produced by redrawing the drawn intermediate of the present invention can be obtained with high productivity and excellent runnability. More specifically, the ultrafine hot-melt adhesive conjugate fiber obtained by redrawing can be drawn at a heretofore unseen high drawing magnification, and the fiber structure of the olefin polymer constituting part of the conjugate fiber is markedly developed. The heat-shrinkable fiber and ultrafine hot-melt adhesive conjugate fiber thus obtained can be suitably used in hygiene products and industrial materials by utilizing these features.
The present invention provides a fiber that can exhibit both excellent antistatic properties and high water repellency, and a high bulk nonwoven fabric with a good texture that exhibits high water repellency. More specifically, the present invention is a highly water repellent fiber that is a conjugate fiber having a plurality of thermoplastic resins as the primary component thereof and having a fiber treatment agent comprising at least Component (A) and Component (B) below deposited thereon at 0.1 to 1.0 wt% in relation to the weight of the fiber, with Component (A) accounting for 75 to 97 wt% and Component (B) accounting for 25 to 3 wt% of the fiber treatment agent: Component (A): polysiloxane Component (B): alkane sulfonate metal salt.
D06M 15/643 - Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds containing silicon in the main chain
D06M 15/647 - Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds containing silicon in the main chain containing polyether sequences
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
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 11/06 - Chemical after-treatment of man-made filaments or the like during manufacture of synthetic polymers of macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
D01F 11/08 - Chemical after-treatment of man-made filaments or the like during manufacture of synthetic polymers of macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
A splittable conjugate fiber comprising a polyester segment and a polyolefin segment, wherein the splittable conjugate fiber comprises two or more parts of the polyester segment extending from a center of the fiber toward an outer edge of the fiber in a cross-sectional configuration perpendicular to its longitudinal direction, in which at least one of the two or more parts of the polyester segment extending from the center of the fiber toward the outer edge of the fiber is exposed at the outer edge of the fiber and at least one of the two or more parts of the polyester segment extending from the center of the fiber toward the outer edge of the fiber is unexposed at the outer edge of the fiber.
A fiber bundle is provided that strikes an excellent balance among the properties and performance of the web and articles manufactured using this web, the productivity, processability, and cost. The fiber bundle comprising continuous fibers aligned in one direction is characterized in that the continuous fibers have crimps that form peaks and valleys in the width direction of the fiber bundle, and these crimps have a characteristic value A, defined as the absolute value of a slope with respect to the length direction of the fiber bundle of a straight line that connects the vertex of the peak with the vertex of the valley of adjacent crimps present in a single continuous fiber, of at least 0.3.
D02G 1/18 - Producing crimped or curled fibres, filaments, yarns or threads, giving them latent characteristics by combining fibres, filaments, or yarns, having different shrinkage characteristics
D02G 1/12 - Producing crimped or curled fibres, filaments, yarns or threads, giving them latent characteristics using stuffer boxes
(C) at least one anionic surfactant selected from the group consisting of a carboxylic acid salt, sulfonic acid salt, sulfuric acid ester salt, and phosphoric acid ester salt.
There is provided a fiber for a wetlaid non-woven fabric, said fiber can be the basis ingredient of a paper that maintains uniform mass per unit area and fiber dispersion and has unprecedented bulkiness. The fiber for a wetlaid non-woven fabric has 30 to 100 wt % of apparently crimping fibers with a fiber diameter of from 3 to 40 μm and 0 to 70 wt % of latently crimping fibers with a fiber diameter of from 3 to 40 μm.
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
D21H 15/04 - Pulp or paper, comprising fibres or web-forming material characterised by features other than their chemical constitution characterised by configuration crimped, kinked, curled or twisted fibres
The conjugate fiber for air-laid nonwoven fabric manufacture is a heat-fusible conjugate fiber in which a first component comprising an olefinic thermoplastic resin is conjugated with a second component comprising an olefinic thermoplastic resin having a melting point higher than that of the first component. The conjugate form is such that the centers of gravity of the conjugate components are mutually different in the fiber cross section, the fiber has a single-yarn fineness of 1 to 10 dtex, a fiber length of 3 to 20 mm, and a planar zig-zag crimp whose crimp shape index (actual length of short fiber/distance between both ends of short fiber) ranges from 1.05 to 1.60, and the web shrinkage upon thermal treatment at 145°C of a web obtained by an air-laid method is not lower than 40%.
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 1/50 - 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
2, and the density ratio by spreading (the web density/fiber bundle density after spreading by drawing to a ratio of 1.6 in a pinch roller spreading machine at a rate of 25 m/min and a fiber bundle temperature of 25° C.) is 0.10 or less.
B32B 5/12 - 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 the relative arrangement of fibres or filaments of adjacent layers
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
D04H 1/42 - 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
31.
CONJUGATE FIBER HAVING LOW-TEMPERATURE PROCESSABILITY, NONWOVEN FABRIC AND FORMED ARTICLE USING THE CONJUGATE FIBER
A conjugate fiber is provided, in which a first component that contains at least 75% by weight of an ethylene-α-olef in copolymer having a melting point of 70 to 1000C and a second component that contains a crystalline polypropylene forma side-by-side cross section, wherein, in a fiber cross section perpendicular to a fiber axis, the first component accounts for 55 to 90% of an outer periphery of the fiber, a borderline between the first component and the second component forms a curve bulging toward the first component, and an area ratio between the first component and the second component (first component/second component) is in a range of 70/30 to 30/70. The conjugate fiber demonstrates low-temperature processability and excellent card passability when processed into a nonwoven fabric, and can produce a bulky nonwoven fabric having excellent uniformity.
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 1/54 - 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
To obtain an ultrafine heat-shrinkable conjugate fiber at high productivity, in which a flow-drawing state of a polyester undrawn yarn is realized easily and stably. By drawing undrawn yarn comprising a conjugated polyester polymer and olefin polymer, a flow-drawing process can be easily and stably realized using conventional production facilities; and the heat-shrinkable fiber, a drawn intermediate, and an ultrafine hot-melt adhesive conjugate fiber produced by redrawing the drawn intermediate of the present invention can be obtained with high productivity and excellent runnability. More specifically, the ultrafine hot-melt adhesive conjugate fiber obtained by redrawing can be drawn at a heretofore unseen high drawing magnification, and the fiber structure of the olefin polymer constituting part of the conjugate fiber is markedly developed. The heat-shrinkable fiber and ultrafine hot-melt adhesive conjugate fiber thus obtained can be suitably used in hygiene products and industrial materials by utilizing these features.
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
D04H 1/42 - 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
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 1/70 - 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
To provide an add-in material to be added to a porous molded body base, the add-in material being capable of developing a pore of appropriate size efficiently without degrading the formability and productivity of a porous molded body, particularly a porous fired body when producing the porous molded body. A shrinkable fiber composed of a thermoplastic resin and to be dispersed in a base of a porous molded body, particularly a porous fired body, wherein the shrinkable fiber has a fiber diameter of 10 to 40 μm, a fiber length of 1 to 20 mm, and a dry-heat shrinkage percentage of at least 8% when subjected to heat treatment at 80 °C for 5 minutes.
D01F 6/00 - Monocomponent man-made filaments or the like of synthetic polymersManufacture thereof
D01F 6/30 - Monocomponent man-made filaments or the like of synthetic polymersManufacture thereof from copolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds comprising olefins as the major constituent
D01F 8/04 - Conjugated, i.e. bi- or multicomponent, man-made filaments or the likeManufacture thereof from synthetic polymers
34.
SPLITTABLE CONJUGATE FIBER, AGGREGATE THEREOF, AND FIBROUS FORM MADE FROM SPLITTABLE CONJUGATE FIBERS
A splittable conjugate fiber comprising a polyester segment and a polyolefin segment, wherein the splittable conjugate fiber comprises two or more parts of the polyester segment extending from a center of the fiber toward an outer edge of the fiber in a cross-sectional configuration perpendicular to its longitudinal direction, in which at least one of the two or more parts of the polyester segment extending from the center of the fiber toward the outer edge of the fiber is exposed at the outer edge of the fiber and at least one of the two or more parts of the polyester segment extending from the center of the fiber toward the outer edge of the fiber is unexposed at the outer edge of the fiber.
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
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 1/42 - 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
35.
THERMAL BONDING CONJUGATE FIBER WITH EXCELLENT BULKINESS AND SOFTNESS, AND FIBER FORMED ARTICLE USING THE SAME
A thermal bonding conjugate fiber constituted from a first component comprising a polyester resin and a second component comprising a polyolefin resin with a melting point lower than that of the polyester resin by not less than 20 °C, characterized in that a post-heat treatment bulk retention rate thereof is 20% or more when calculated by the following measurement method: Bulk retention rate = (H1 (mm)/H0 (mm)) X 100 (%) (wherein H0 is the web height when a 0.1 g/cm2 load is applied to a web with a mass per unit area of 200 g/m2; and H1 is the web height after a heat treatment for 5 min at 145°C when a 0.1 g/cm2 load is applied to that web).
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
36.
SPLITTABLE CONJUGATE FIBER INCLUDING POLYACETAL, AND FIBROUS FORM AND PRODUCT EACH OBTAINED FROM THE SAME
The invention provides a splittable conjugate fiber excellent in splittability and chemical resistance. The invention also provides a fibrous form and product comprising the fiber with satisfactory productivity. A splittable conjugate fiber comprising a polyacetal and a polyolefin (e.g., polypropylene, polyethylene or the like), wherein the polyacetal satisfies the following numerical expression: Tc' ≤ 144 C [wherein Tc' represents the crystallization temperature Tc (C) when cooling the polyacetal melted at 210 C at a cooling rate of 10 C/min].
D01F 8/16 - Conjugated, i.e. bi- or multicomponent, man-made filaments or the likeManufacture thereof from synthetic polymers with at least one other macromolecular compound obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
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
D03D 15/00 - Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
D04H 1/42 - 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
37.
ANTIBACTERIAL AND DEODORANT FIBER, FIBER FORMED ARTICLE, AND FIBER PRODUCT
An antibacterial and deodorant fiber characterized in that a fiber treatment agent comprising at least a component (A), and (B) and/or (C) below are attached thereto at 0.2 to 5 wt% of the total weight of the fiber: (A) at least one plant extract, said plant being at least one selected from the group of tea leaves, aloe, bamboo, bamboo grass, Japanese butterbur {Petasites japonica), loofa {Luffa cylindrica), horsetail {Equisetum arvense), Japanese mugwort {Artemisia princeps), geranium {Geranium nepalense var. thunbergii), persimmon, and grapefruit; (B) at least one nonionic surfactant selected from the group consisting of an alkylene oxide adduct type nonionic surfactant and a polyhydric alcohol type nonionic surfactant; (C) at least one anionic surfactant selected from the group consisting of a carboxylic acid salt, sulfonic acid salt, sulfuric acid ester salt, and phosphoric acid ester salt.
There is provided a fiber for a wetlaid non-woven fabric, said fiber can be the basis ingredient of a paper that maintains uniform mass per unit area and fiber dispersion and has unprecedented bulkiness. The fiber for a wetlaid non-woven fabric has 30 to 100 wt% of apparently crimping fibers with a fiber diameter of from 3 to 40 mm and 0 to 70 wt% of latently crimping fibers with a fiber diameter of from 3 to 40 mm.
D21H 15/04 - Pulp or paper, comprising fibres or web-forming material characterised by features other than their chemical constitution characterised by configuration crimped, kinked, curled or twisted fibres
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
D02G 3/04 - Blended or other yarns or threads containing components made from different materials
D02G 3/24 - Bulked yarns or threads, e.g. formed from staple fibre components with different relaxation characteristics
D04H 1/541 - Composite fibres e.g. sheath-core, sea-island or side-by-sideMixed fibres
D04H 1/732 - 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 by fluid current, e.g. air-lay
There is provided a fiber bundle that strikes an excellent balance between the properties and performance of the resulting web and the finished products obtained from this web, and cost, ease of work, and productivity. There is also provided a method for manufacturing a web using this fiber bundle. There is also provided a web that is uniform and has excellent soft touch and bulkiness. This is achieved by a fiber bundle with a total denier of 10,000 to 500,000 dtex, obtained by bundling thermoplastic, conjugate, continuous fibers that have a single filament denier of 0.5 to 100 dtex/f and in which the center of gravity of conjugate components varies among the conjugate components in a fiber cross section, wherein the thermoplastic, conjugate, continuous fibers that make up the fiber bundle have a spontaneous crimp of 8 to 30 crimps per 2.54 cm, the fiber bundle density as defined by D1/(W1 L L1) (where D1 is the total denier, W1 is the fiber bundle width, and L1 is the fiber bundle thickness) is 100 to 2000 dtex/mm2, and the density ratio by spreading (the web density/fiber bundle density after spreading by drawing to a ratio of 1.6 in a pinch roller spreading machine at a rate of 25 m/min and a fiber bundle temperature of 25 ) is 0.10 or less.
D02G 3/02 - Yarns or threads characterised by the material or by the materials from which they are made
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 13/49 - 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 shape specially adapted to be worn around the waist, e.g. diapers, nappies
A61F 13/511 - Topsheet, i.e. the permeable cover or layer facing the skin
D01F 8/04 - Conjugated, i.e. bi- or multicomponent, man-made filaments or the likeManufacture thereof from synthetic polymers
patents
