The present invention relates to improvements for tactile guidance for closing a linear fastener. Such fasteners are known for use on reclosable storage bags. Disclosed is a fastener assembly comprising first and second opposing flanges. Each flange can have linear male and female closure elements that interlock with matching male and female elements of the second flange. The fastener assembly can further comprise a linear arrangement of perforations between the closure elements to provide enhanced tactile feedback while the fastener is closed.
The present invention is directed to a method and apparatus for securely applying print to a web of continuous polymeric film. The web can first travel in a machine direction on a tensioning roller and onto a folding board whereupon the web is divided into first and second partial widths with a cross-section of the web taking on a U-shape or a V-shape. In between the cross-section of these two partial widths a printer can be placed such that the printer prints onto an inner surface of first partial width. Once the printing is complete, the folding of the web can be completed such that an inner surface of the second partial width is in contact with, covers, and protects the printed matter placed onto the first partial width.
B41M 5/00 - Duplicating or marking methodsSheet materials for use therein
B41J 2/325 - Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of heat to a heat sensitive printing or impression-transfer material using thermal heads by selective transfer of ink from ink carrier, e.g. from ink ribbon or sheet
B41J 3/407 - Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed for marking on special material
B41J 15/04 - Supporting, feeding, or guiding devicesMountings for web rolls or spindles
B41J 15/16 - Means for tensioning or winding the web
B65B 61/02 - Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages for perforating, scoring, or applying code or date marks on material prior to packaging
The present invention is directed to a bag of polymeric film and a method to make the bag. The bag can be comprised of a front panel and a rear panel. The front and rear panels can each be comprised of multiple layers of film. The bag can be formed from a collapsed bubble of polymeric film that has been folded in half so that opposing edges of the collapsed bubble form an opening of the bag. One of the layers of the folded bubble can be split adjacent to an edge of the collapsed bubble and a draw tape film can be inserted between the layers of the folded and collapsed bubble. The collapsed bubble can further be embossed by a pattern that can provide enhanced properties to bags formed from the folded bubble.
B31B 160/10 - Shape of flexible containers rectangular and flat, i.e. without structural provision for thickness of contents
B31B 170/30 - Construction of flexible containers having corrugated or pleated walls
B65D 30/08 - Sacks, bags or like containers characterised by the material used with laminated or multiple walls in spaced face-to-face relationship, e.g. double walls
The present invention relates to thermoplastic film having improved tear resistance, puncture resistance, and enhanced control of the film's elongation when subject to an applied load. The film can have an emboss pattern comprising a plurality of embossed regions, each embossed region comprising a plurality of closely spaced, non-intersecting sinusoidal shaped embosses. A sinusoidal emboss of an embossed region can be divided into three sections, wherein for each section along the emboss, the cross and machine orientation of the film can vary due to formation of the emboss. The emboss pattern can be arranged into various sections, wherein the amplitudes of the sinusoidal embosses of an embossed region can vary from one section of the pattern to another. The overall geometric shape of the embossed regions can also vary from one emboss region to another.
The present invention is directed to a method and apparatus for securely applying print to a web of continuous polymeric film. The web can first travel in a machine direction on a tensioning roller and onto a folding board whereupon the web is divided into first and second partial widths with a cross-section of the web taking on a U-shape or a V-shape. In between the cross-section of these two partial widths a printer can be placed such that the printer prints onto an inner surface of first partial width. Once the printing is complete, the folding of the web can be completed such that an inner surface of the second partial width is in contact with, covers, and protects the printed matter placed onto the first partial width.
B65H 37/06 - Article or web delivery apparatus incorporating devices for performing specified auxiliary operations for folding
B41J 3/407 - Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed for marking on special material
B41J 15/16 - Means for tensioning or winding the web
B65B 61/02 - Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages for perforating, scoring, or applying code or date marks on material prior to packaging
B65H 26/02 - Warning or safety devices, e.g. automatic fault detectors, stop-motions, for web-advancing mechanisms responsive to presence of irregularities in running webs
B65H 45/22 - Longitudinal folders, i.e. for folding moving sheet material parallel to the direction of movement
B65B 9/06 - Enclosing successive articles, or quantities of material, in a longitudinally-folded web, or in a web folded into a tube about the articles or quantities of material placed upon it
B65H 23/025 - Registering, tensioning, smoothing, or guiding webs transversely by tentering devices by rollers
The present invention is directed to a bag of polymeric film and a method to make the bag. The bag can be comprised of a front panel and a rear panel. The front and rear panels can each be comprised of multiple layers of film. The bag can be formed from a collapsed bubble of polymeric film that has been folded in half so that opposing edges of the collapsed bubble form an opening of the bag. One of the layers of the folded bubble can be split adjacent to an edge of the collapsed bubble and a draw tape film can be inserted between the layers of the folded and collapsed bubble. The collapsed bubble can further be embossed by a pattern that can provide enhanced properties to bags formed from the folded bubble.
B31B 70/00 - Making flexible containers, e.g. envelopes or bags
B31B 70/81 - Forming or attaching accessories, e.g. opening devices, closures or tear strings
B65D 30/08 - Sacks, bags or like containers characterised by the material used with laminated or multiple walls in spaced face-to-face relationship, e.g. double walls
The present invention is directed to a method and apparatus for securely applying print to a web of continuous polymeric film. The web can first travel in a machine direction on a tensioning roller and onto a folding board whereupon the web is divided into first and second partial widths with a cross-section of the web taking on a U-shape or a V-shape. In between the cross-section of these two partial widths a printer can be placed such that the printer prints onto an inner surface of first partial width. Once the printing is complete, the folding of the web can be completed such that an inner surface of the second partial width is in contact with, covers, and protects the printed matter placed onto the first partial width.
B65H 37/06 - Article or web delivery apparatus incorporating devices for performing specified auxiliary operations for folding
B65H 26/02 - Warning or safety devices, e.g. automatic fault detectors, stop-motions, for web-advancing mechanisms responsive to presence of irregularities in running webs
The present invention relates to improvements for the manufacturing of a wave-cut bag of polymeric film, more specifically a wave-cut bag with a body having improved shock, tear and puncture resistance. The polymeric film has an embossed pattern of a plurality of embossed regions that are comprised of a plurality of parallel, linear embosses. Further disclosed is a process for intermittently applying the embossed pattern to a collapsed tube of a blown film extrusion process. The collapsed tube with the intermittently applied embossed pattern is particularly well suited for constructing wave-cut trash bags with the embossed pattern applied to a central body of the wave-cut bags.
The present invention is directed to a bag of polymeric film and a method to make the bag. The bag can be comprised of a front panel and a rear panel. The front and rear panels can each be comprised of multiple layers of film. The bag can be formed from a collapsed bubble of polymeric film that has been folded in half so that opposing edges of the collapsed bubble form an opening of the bag. One of the layers of the folded bubble can be split adjacent to an edge of the collapsed bubble and a draw tape film can be inserted between the layers of the folded and collapsed bubble. The collapsed bubble can further be embossed by a pattern that can provide enhanced properties to bags formed from the folded bubble.
B65D 30/08 - Sacks, bags or like containers characterised by the material used with laminated or multiple walls in spaced face-to-face relationship, e.g. double walls
B31B 70/00 - Making flexible containers, e.g. envelopes or bags
B31B 70/81 - Forming or attaching accessories, e.g. opening devices, closures or tear strings
The present invention relates to improvements for shopping and merchandise bags with integral handles. Disclosed is a bag with integral handles and closure elements located below the integral handles. Further disclosed is a process for manufacturing a reclosable bag with integral handles. The handles and bag may be formed from a wave-cut polymeric tube. In addition, the handles of the bag may be formed from a wave-cut polymeric tube while the body of the bag is formed from a side-gusseted polymeric tube. The disclosed bags and methods to make such bags provide cost effective solutions for providing reclosable bags with integral handles.
The present invention relates to a shipping container for rolled goods, particularly relatively heavy and rigid rolled products such as high count rolls of trash bags. In at least one embodiment, the shipping container may be used for shipping a product enclosure containing a pair of rolled trash bags. The shipping container can include a pair of opposing side reinforcing trays to prevent damage to the shipping container when in transit. The invention can conserve the amount of materials used and reduce the shipping weight of the container. The shipping container can further include a flexible overwrap to maintain the reinforcement trays on the opposing side ends of the product enclosure and to provide for additional reinforcement to the shipping container.
B65D 75/00 - Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes or webs of flexible sheet material, e.g. in folded wrappers
The present invention relates to polymeric bags, particularly polymeric drawstring trash bags. The present invention comprises a trash bag having an elastic drawstring. The elastic drawstring trash bag features an integrated short seal comprising an inner seal, an outer seal, and an intermediate seal. The integrated short seal functions to reduce the upper opening of the drawstring trash bag, while the elastic drawstring utilized with the bag provides a bag that allows the bag to fit snugly on many common trash receptacles.
The present invention relates to a shipping container for rolled goods, particularly relatively heavy and rigid rolled products such as high count rolls of trash bags. In at least one embodiment, the shipping container may be used for shipping a product enclosure containing a pair of rolled trash bags. The shipping container can include a pair of opposing side reinforcing trays to prevent damage to the shipping container when in transit. The invention can conserve the amount of materials used and reduce the shipping weight of the container. The shipping container can further include a flexible overwrap to maintain the reinforcement trays on the opposing side ends of the product enclosure and to provide for additional reinforcement to the shipping container.
B65D 75/00 - Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes or webs of flexible sheet material, e.g. in folded wrappers
The present invention relates to improvements for the manufacturing of a wave-cut bag of polymeric film, more specifically a wave-cut bag with a body having improved shock, tear and puncture resistance. The polymeric film has an embossed pattern of a plurality of embossed regions that are comprised of a plurality of parallel, linear embosses. Further disclosed is a process for intermittently applying the embossed pattern to a collapsed tube of a blown film extrusion process. The collapsed tube with the intermittently applied embossed pattern is particularly well suited for constructing wave-cut trash bags with the embossed pattern applied to a central body of the wave-cut bags.
The present invention is directed to a drawstring bag comprising a first panel and a second panel. The first panel and the second panel are joined along a first side, a bottom, and a second side. The first panel and the second panel thereby define an upper opening of the bag. The drawstring bag may further comprise a wave shaped drawstring disposed within a first hem along the upper opening of the bag in the first panel and a second wave shaped drawstring disposed within a second hem along the upper opening of the bag in the second panel. Each of the wave shaped drawstrings may be out stretched prior to insertion into the corresponding hem to narrow the upper opening of the bag to provide for the bag gripping the openings of trash containers.
The present invention relates to a shipping container for rolled goods, particularly relatively heavy and rigid rolled products such as high count rolls of trash bags. In at least one embodiment, the shipping container may be used for shipping a product enclosure containing a pair of rolled trash bags. The shipping container can include a pair of opposing side reinforcing trays to prevent damage to the shipping container when in transit. The invention can conserve the amount of materials used and reduce the shipping weight of the container. The shipping container can further include a flexible overwrap to maintain the reinforcement trays on the opposing side ends of the product enclosure and to provide for additional reinforcement to the shipping container.
B65D 75/00 - Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes or webs of flexible sheet material, e.g. in folded wrappers
The present invention is directed to a method of incrementally stretching polymeric film formed from a blown film extrusion process. The present invention is further directed to a polymeric bag formed from an incrementally stretched polymeric film. The incremental stretching is performed on a collapsed polymeric bubble via a pair of intermeshing rollers. The incrementally stretched polymeric film may be stretched only along a portion of its width. The polymeric bag may be a drawstring trash bag with an extended hem where only the extended hem of the bag or the body of the bag comprises incrementally stretched polymeric film.
B65D 30/08 - Sacks, bags or like containers characterised by the material used with laminated or multiple walls in spaced face-to-face relationship, e.g. double walls
B65D 30/10 - Sacks, bags or like containers characterised by shape or construction
B65D 33/02 - Local reinforcements or stiffening inserts, e.g. wires, strings, strips or frames
B29C 48/10 - Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels flexible, e.g. blown foils
B29C 48/14 - Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired formApparatus therefor characterised by the particular extruding conditions, e.g. in a modified atmosphere or by using vibration
B29C 48/28 - Storing of extruded material, e.g. by winding up or stacking
The present invention relates to polymeric bags, particularly polymeric drawstring trash bags. The present invention comprises a trash bag having an elastic drawstring. The elastic drawstring trash bag features an integrated short seal comprising an inner seal, an outer seal, and an intermediate seal. The integrated short seal functions to reduce the upper opening of the drawstring trash bag, while the elastic drawstring utilized with the bag provides a bag that allows the bag to fit snugly on many common trash receptacles.
The present invention is directed to a thermoplastic bag comprised of a front panel and a back panel. The front panel and back panel are generally joined along a first side edge, a second side edge, and a bottom edge of the respective front panel and back panel. The front panel has a distal edge with the distal edge folded over the front panel to provide a hem and an overlap area immediately below the first hem. The overlap encapsulates a scent carrier that can provide a scent to the thermoplastic bag.
The present invention is directed to a bag of polymeric film and a method to make the bag. The bag can be comprised of a front panel and a rear panel. The front and rear panels can each be comprised of multiple layers of film. The bag can be formed from a collapsed bubble of polymeric film that has been folded in half so that opposing edges of the collapsed bubble form an opening of the bag. One of the layers of the folded bubble can be split adjacent to an edge of the collapsed bubble and a draw tape film can be inserted between the layers of the folded and collapsed bubble. The collapsed bubble can further be embossed by a pattern that can provide enhanced properties to bags formed from the folded bubble.
B65D 30/08 - Sacks, bags or like containers characterised by the material used with laminated or multiple walls in spaced face-to-face relationship, e.g. double walls
B31B 70/00 - Making flexible containers, e.g. envelopes or bags
B31B 70/81 - Forming or attaching accessories, e.g. opening devices, closures or tear strings
The present invention is directed to a thermoplastic bag comprised of a front panel and a back panel. The front panel and back panel are generally joined along a first side edge, a second side edge, and a bottom edge of the respective front panel and back panel. The front panel has a distal edge with the distal edge folded over the front panel to provide a hem and an overlap area immediately below the first hem. The overlap encapsulates a scent carrier that can provide a scent to the thermoplastic bag.
The present invention relates to polymeric bags, particularly polymeric drawstring trash bags. The present invention comprises a trash bag having an elastic drawstring. The elastic drawstring trash bag features an integrated short seal comprising an inner seal, an outer seal, and an intermediate seal. The integrated short seal functions to reduce the upper opening of the drawstring trash bag, while the elastic drawstring utilized with the bag provides a bag that allows the bag to fit snugly on many common trash receptacles.
The present invention relates to polymeric bags, particularly polymeric drawstring trash bags. The present invention comprises a trash bag having an elastic drawstring. The elastic drawstring trash bag features an integrated short seal comprising an inner seal, an outer seal, and an intermediate seal. The integrated short seal functions to reduce the upper opening of the drawstring trash bag, while the elastic drawstring utilized with the bag provides a bag that allows the bag to fit snugly on many common trash receptacles.
The present invention relates to improvements for shopping and merchandise bags with integral handles. Disclosed is a bag with integral handles and closure elements located below the integral handles. Further disclosed is a process for manufacturing a reclosable bag with integral handles. The handles and bag may be formed from a wave-cut polymeric tube. In addition, the handles of the bag may be formed from a wave-cut polymeric tube while the body of the bag is formed from a side-gusseted polymeric tube. The disclosed bags and methods to make such bags provide cost effective solutions for providing reclosable bags with integral handles.
The present invention is directed to an apparatus for forming a multi-layer web formed from at least two polymeric film tubes in intimate contact with each other but not bonded to each other. The apparatus includes the use of a blown film extrusion die that extrudes two separate blown film polymeric tubes via two separate annular die lips. A fluid cooling system applies cooling fluid across a plurality of surfaces of the two blown film tubes. One of the die lips may be at a different height from the other die lip. The frost line of one blown film tube may be at a different height from the other blown film tube.
The present invention is directed to a method of incrementally stretching polymeric film formed from a blown film extrusion process. The present invention is further directed to a polymeric bag formed from an incrementally stretched polymeric film. The incremental stretching is performed on a collapsed polymeric bubble via a pair of intermeshing rollers. The incrementally stretched polymeric film may be stretched only along a portion of its width. The polymeric bag may be a drawstring trash bag with an extended hem where only the extended hem of the bag or the body of the bag comprises incrementally stretched polymeric film.
B65D 30/08 - Sacks, bags or like containers characterised by the material used with laminated or multiple walls in spaced face-to-face relationship, e.g. double walls
B65D 30/10 - Sacks, bags or like containers characterised by shape or construction
B65D 33/02 - Local reinforcements or stiffening inserts, e.g. wires, strings, strips or frames
B29C 48/10 - Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels flexible, e.g. blown foils
B29C 48/14 - Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired formApparatus therefor characterised by the particular extruding conditions, e.g. in a modified atmosphere or by using vibration
B29C 48/28 - Storing of extruded material, e.g. by winding up or stacking
39.
Polymeric bags and method of forming polymeric bags
The present invention relates to improvements for the manufacturing of a wave-cut bag of polymeric film, more specifically a wave-cut bag with a body having improved shock, tear and puncture resistance. The polymeric film has an embossed pattern of a plurality of embossed regions that are comprised of a plurality of parallel, linear embosses. Further disclosed is a process for intermittently applying the embossed pattern to a collapsed tube of a blown film extrusion process. The collapsed tube with the intermittently applied embossed pattern is particularly well suited for constructing wave-cut trash bags with the embossed pattern applied to a central body of the wave-cut bags.
The present invention is directed to a thermoplastic bag comprised of a front panel and a back panel. The front panel and back panel are generally joined along a first side edge, a second side edge, and a bottom edge of the respective front panel and back panel. The front panel has a distal edge with the distal edge folded over the front panel to provide a hem and an overlap area immediately below the first hem. The overlap encapsulates a scent carrier that provides a scent to the thermoplastic bag.
The present invention relates to improvements for the manufacturing of a wave-cut bag, more specifically a wave-cut bag with improved tie-flaps. Disclosed is a process for intermittently incrementally stretching and imparting a rib-like pattern to a collapsed tube of a blown film extrusion process. The incrementally stretched collapsed tube is particularly well suited for constructing wave-cut trash bags with a rib pattern on the tie-flaps of the trash bags. Further disclosed is a wave-cut trash bag with a rib pattern on its tie-flaps and surrounding area. The process is further well suited for constructing wave-cut trash bags with a rib pattern on a central body of the trash bags.
The present invention relates to improvements for agricultural storage bags, more specifically agricultural storage bags having improved shock, tear and puncture resistance, and enhanced stretching properties. The agricultural storage bag has an embossed pattern of a plurality of embossed regions that are comprised of a plurality of linear embosses. Each embossed region is separated by a continuous unembossed region. Further disclosed is a method for forming the improved agricultural storage bags from a collapsed tube formed by a blown film extrusion process. More than one set of intermeshing rollers may be used to apply the embossed pattern to the improved agricultural storage bags. Once the storage bags are embossed, a folding operation may fold the bags into a plurality of annular folds so that the bags may be used with an agricultural bagging machine.
B29C 59/02 - Surface shaping, e.g. embossingApparatus therefor by mechanical means, e.g. pressing
B30B 11/18 - Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses or tabletting presses using profiled rollers
The present invention is directed to a thermoplastic drawstring trash bag wherein the thermoplastic drawstring trash bag has an enhanced thickness region in one or more panels of the drawstring trash bag. The enhanced thickness region has an average thickness that is greater than the thickness of the remaining portions of the panels forming the drawstring trash bag. The enhanced thickness region is generally in the area of the hems and traverses the hem seals.
The present invention is directed to a thermoplastic bag comprised of a front panel and a back panel. The front panel and back panel are generally joined along a first side edge, a second side edge, and a bottom edge of the respective front panel and back panel. The front panel has a distal edge with the distal edge folded over the front panel to provide a hem and an overlap area immediately below the first hem. The overlap encapsulates a scent carrier that provides a scent to the thermoplastic bag.
The present invention is directed to an apparatus for forming a multi-layer web formed from at least two polymeric film tubes in intimate contact with each other but not bonded to each other. The apparatus and method includes the use of a blown film extrusion die that extrudes two separate blown film polymeric tubes via two separate annular die lips. A fluid cooling system applies cooling fluid across a plurality of surfaces of the two blown film tubes. One of the die lips may be at a different height from the other die lip. The frost line of one blown film tube may be at a different height from the other blown film tube.
The present invention is directed to a thermoplastic bag comprised of a front panel and a back panel. The front panel and back panel are generally joined along a first side edge, a second side edge, and a bottom edge of the respective front panel and back panel. The front panel has a distal edge with the distal edge folded over the front panel to provide a hem and an overlap area immediately below the first hem. The overlap encapsulates a scent carrier that provides a scent to the thermoplastic bag.
The present invention relates to improvements for shopping and merchandise bags with integral handles. Disclosed is a bag with integral handles and closure elements located below the integral handles. Further disclosed is a process for manufacturing a reclosable bag with integral handles. The handles and bag may be formed from a wave-cut polymeric tube. In addition, the handles of the bag may be formed from a wave-cut polymeric tube while the body of the bag is formed from a side-gusseted polymeric tube. The disclosed bags and methods to make such bags provide cost effective solutions for providing reclosable bags with integral handles.
The present invention relates to improvements for the manufacturing of a wave-cut bag of polymeric film, more specifically a wave-cut bag with a body having improved shock, tear and puncture resistance. The polymeric film has an embossed pattern of a plurality of embossed regions that are comprised of a plurality of parallel, linear embosses. Further disclosed is a process for intermittently applying the embossed pattern to a collapsed tube of a blown film extrusion process. The collapsed tube with the intermittently applied embossed pattern is particularly well suited for constructing wave-cut trash bags with the embossed pattern applied to a central body of the wave-cut bags.
The present invention is directed to a method of incrementally stretching polymeric film formed from a blown film extrusion process. The present invention is further directed to a polymeric bag formed from an incrementally stretched polymeric film. The incremental stretching is performed on a collapsed polymeric bubble via a pair of intermeshing rollers. The incrementally stretched polymeric film may be stretched only along a portion of its width. The polymeric bag may be a drawstring trash bag with an extended hem where only the extended hem of the bag or the body of the bag comprises incrementally stretched polymeric film.
B65D 30/08 - Sacks, bags or like containers characterised by the material used with laminated or multiple walls in spaced face-to-face relationship, e.g. double walls
B65D 30/10 - Sacks, bags or like containers characterised by shape or construction
B31D 1/00 - Multiple-step processes for making flat articles
B65D 33/02 - Local reinforcements or stiffening inserts, e.g. wires, strings, strips or frames
The present invention is directed to a drawstring bag comprising a first panel and a second panel. The first panel and the second panel are joined along a first side, a bottom, and a second side. The first panel and the second panel thereby define an upper opening of the bag. The drawstring bag may further comprise a first pair of drawstrings disposed within a first hem along the upper opening of the bag in the first panel and a second pair of drawstrings disposed within a second hem along the upper opening of the bag in the second panel. The first pair of drawstrings may comprise a shorter elastic drawstring and a longer inelastic drawstring.
The present invention relates to improvements for the manufacturing of a wave-cut bag, more specifically a wave-cut bag with improved tie-flaps. Disclosed is a process for intermittently incrementally stretching and imparting a rib-like pattern to a collapsed tube of a blown film extrusion process. The incrementally stretched collapsed tube is particularly well suited for constructing wave-cut trash bags with a rib pattern on the tie-flaps of the trash bags. Further disclosed is a wave-cut trash bag with a rib pattern on its tie-flaps and surrounding area. The process is further well suited for constructing wave-cut trash bags with a rib pattern on a central body of the trash bags.
The present invention relates to improvements for the manufacturing of a wave-cut bag, more specifically a wave-cut bag with improved tie-flaps. Disclosed is a process for intermittently incrementally stretching and imparting a rib-like pattern to a collapsed tube of a blown film extrusion process. The incrementally stretched collapsed tube is particularly well suited for constructing wave-cut trash bags with a rib pattern on the tie-flaps of the trash bags. Further disclosed is a wave-cut trash bag with a rib pattern on its tie-flaps and surrounding area.
B65D 33/00 - Details of, or accessories for, sacks or bags
B65D 33/16 - End- or aperture-closing arrangements or devices
B31B 19/14 - Machinery characterised by making rectangular envelopes or bags of flat form, i.e. without structural provision at the base for thickness of contents and having means for cutting, e.g. perforating, punching, slitting, trimming
B31B 19/26 - Machinery characterised by making rectangular envelopes or bags of flat form, i.e. without structural provision at the base for thickness of contents and having means for folding sheets, blanks, or webs
B31B 19/64 - Machinery characterised by making rectangular envelopes or bags of flat form, i.e. without structural provision at the base for thickness of contents and having means for uniting opposed surfaces or edges, or for taping by applying heat or pressure
The present invention is directed to a method of incrementally stretching polymeric film formed from a blown film extrusion process. The present invention is further directed to a polymeric bag formed from an incrementally stretched polymeric film. The incremental stretching is performed on a collapsed polymeric bubble via a pair of intermeshing rollers. The incrementally stretched polymeric film may be stretched only along a portion of its width. The polymeric bag may be a drawstring trash bag with an extended hem where only the extended hem of the polymeric bag comprises incrementally stretched polymeric film.
B65D 30/08 - Sacks, bags or like containers characterised by the material used with laminated or multiple walls in spaced face-to-face relationship, e.g. double walls
B65D 30/10 - Sacks, bags or like containers characterised by shape or construction
B31D 1/00 - Multiple-step processes for making flat articles
B65D 33/02 - Local reinforcements or stiffening inserts, e.g. wires, strings, strips or frames
The present invention relates to a thermoplastic film having improved tear and puncture resistance. The thermoplastic has a plurality of embossed regions that are comprised of a plurality of parallel, linear embosses. The plurality of embossed regions is arranged so that a straight line cannot traverse the thermoplastic film without intersecting at least one of the plurality of embossed regions.
The present invention relates to a thermoplastic film having improved tear and puncture resistance. The thermoplastic has a plurality of embossed regions that are comprised of a plurality of parallel, linear embosses. The plurality of embossed regions is arranged so that a straight line cannot traverse the thermoplastic film without intersecting at least one of the plurality of embossed regions.
The present invention is directed to an apparatus for differential cooling of a plastic film tube. The apparatus and method includes the use of a blown film extrusion die that extrudes a plastic film tube upward. An air cooling system applies cooling air across one or more surfaces of the plastic film tube. One or more throttling valves are coupled to a pressurization pump that provides a pressurized working fluid, preferably water. The throttling valves are positioned to project the pressurized working fluid from outlets of the throttling valves towards circular arcs of the plastic film tube, the circular arcs of the plastic film tube being less than the circumference of the plastic film tube to provide a blown film tubular plastic film with controlled gauge variation.
B29C 47/88 - Heating or cooling the stream of extruded material
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)
B29C 47/08 - Component parts, details or accessories; Auxiliary operations
The present invention is directed to a thermoplastic bag comprised of a front panel and a back panel. The front panel and back panel are generally joined along a first side edge, a second side edge, and a bottom edge of the respective front panel and back panel. The front panel has a distal edge with the distal edge folded over the front panel to provide a hem and an overlap area immediately below the first hem. The overlap area comprises at least two layers of polymeric film which are sealed together.
The present invention relates to a thermoplastic bag having enhanced capacity without significantly compromising dart impact properties. The thermoplastic bag has an area of induced elasticity that provides enhanced capacity, the area of induced elasticity generally surrounded by an area lacking induced elasticity.
The present invention is directed to an apparatus for differential cooling of a plastic film tube. The apparatus and method includes the use of a blown film extrusion die that extrudes a plastic film tube upward. An air cooling system applies cooling air across one or more surfaces of the plastic film tube. One or more throttling valves are coupled to a pressurization pump that provides a pressurized working fluid, preferably water. The throttling valves are positioned to project the pressurized working fluid from outlets of the throttling valves towards circular arcs of the plastic film tube, the circular arcs of the plastic film tube being less than the circumference of the plastic film tube to provide a blown film tubular plastic film with controlled gauge variation.
B29C 47/88 - Heating or cooling the stream of extruded material
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)
The present invention is directed to a thermoplastic drawstring trash bag wherein the thermoplastic drawstring trash bag has an enhanced thickness region in one or more panels of the drawstring trash bag. The enhanced thickness region has an average thickness that is greater than the thickness of the remaining portions of the panels forming the drawstring trash bag. The enhanced thickness region is generally in the area of the hems and traverses the hem seals.
The present disclosure describes systems and methods for affixing one or more geomembrane sheets to a concrete slab. The systems and methods can include an affixing member that adheres to the one or more geomembrane sheets. The affixing member can further include gripping extensions that adhere to the concrete slab. The gripping extensions can include distal ends embedded into the concrete slab. The gripping extensions can be integral with the affixing member. The geomembrane sheets may be used in the construction of a building to prevent vapor transmission through a concrete foundation from the supporting substrate.
E04C 2/26 - Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups , , , or of materials covered by one of these groups with a material not specified in one of these groups
E04C 2/296 - Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups , , , or of materials covered by one of these groups with a material not specified in one of these groups at least one of the materials being insulating composed of insulating material and non-metallic or unspecified sheet-material
E04C 3/29 - JoistsGirders, trusses, or truss-like structures, e.g. prefabricatedLintelsTransoms built-up from parts of different materials
E04C 2/288 - Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups , , , or of materials covered by one of these groups with a material not specified in one of these groups at least one of the materials being insulating composed of insulating material and concrete, stone or stone-like material
