Patent classifications
B65D33/20
RECYCLABLE WOVEN PLASTIC BAGS WITH QUAD-SEAL AND/OR K-SEAL
A recyclable woven laminated plastic bag having features that further prevent leakage of contents out of the bag, or infestation of organisms into the contents of the bag is provided. In various aspects the bag can be fabricated from a woven polyethylene, polypropylene, or combination thereof layer which can be laminated using polyethylene, polypropylene, or combination thereof resin with a film layer formed from polyethylene, polypropylene, or combination thereof, can form a sealed corner bag and/or a diagonal sealed bag, and can have one or more sides include graphics and/or printing. The bag can also provide a top end and/or a bottom end either or both of which provide a discrete area which may contain discrete graphics and/or printing.
RECYCLABLE WOVEN PLASTIC BAGS WITH QUAD-SEAL AND/OR K-SEAL
A recyclable woven laminated plastic bag having features that further prevent leakage of contents out of the bag, or infestation of organisms into the contents of the bag is provided. In various aspects the bag can be fabricated from a woven polyethylene, polypropylene, or combination thereof layer which can be laminated using polyethylene, polypropylene, or combination thereof resin with a film layer formed from polyethylene, polypropylene, or combination thereof, can form a sealed corner bag and/or a diagonal sealed bag, and can have one or more sides include graphics and/or printing. The bag can also provide a top end and/or a bottom end either or both of which provide a discrete area which may contain discrete graphics and/or printing.
THERMOFORMED FLEXIBLE PACKAGE WITH ENLARGED INTEGRAL REMOVABLE TAB AT DISTAL END OF DISPENSING TUBE
The removable sealed closure portion of the dispensing tube of a flexible thermoformed dispensing package for flowable materials is provided with an enlarged safety tab that can be integrally formed with, or separately secured to the sealed closure portion, the enlarged safety tab being dimensioned and configured to avoid inadvertent ingestion by a human or small pet when the tab is removed to open the dispensing tube in preparation for dispensing the product. In addition to functioning as a “flag”, the surfaces of which can be printed with source-identifying indicia and other consumer information, the enlarged safety tab formed in an open-ended folded configuration and provided with interior fields of repositionable pressure sensitive adhesive, serves as a protective cover and seal when removed and placed over the open end of the dispensing tube to preserve any remaining material in the container portion of the package.
THERMOFORMED FLEXIBLE PACKAGE WITH ENLARGED INTEGRAL REMOVABLE TAB AT DISTAL END OF DISPENSING TUBE
The removable sealed closure portion of the dispensing tube of a flexible thermoformed dispensing package for flowable materials is provided with an enlarged safety tab that can be integrally formed with, or separately secured to the sealed closure portion, the enlarged safety tab being dimensioned and configured to avoid inadvertent ingestion by a human or small pet when the tab is removed to open the dispensing tube in preparation for dispensing the product. In addition to functioning as a “flag”, the surfaces of which can be printed with source-identifying indicia and other consumer information, the enlarged safety tab formed in an open-ended folded configuration and provided with interior fields of repositionable pressure sensitive adhesive, serves as a protective cover and seal when removed and placed over the open end of the dispensing tube to preserve any remaining material in the container portion of the package.
Resealable bag
A bag has a recloseable fastener, a bottom and, for each side, a flap. The flap has side edges that are sealed to side edges of the bag, the flap being sized and dimensioned such that the flap lies flush against the side of the bag except when stretched or drawn apart therefrom, the flap being disposed intermediate the recloseable fastener and the bottom. The fastener is adapted such that the amount of force necessary to separate the components, when such force is applied to interiors of the walls at a position between the fastener and the bottom and adjacent the fastener, is greatly exceed by the amount of force necessary to separate the components: when such force is applied to the walls adjacent the upper edge; and when such force is applied to the free edges of the flaps. The bag can be produced either on a pouch machine or a sideweld bag machine. A single web can be fed over a series of rollers and formers to make progressive folds and a zipper closure can be continuously fed to the inner side of the structure and sealed in place. Side seals are made intermittently to finish the bag. The seal on a sideweld version can be a bead seam whereas on the pouch machine the seal can be up to ¼″ wide.
Resealable bag
A bag has a recloseable fastener, a bottom and, for each side, a flap. The flap has side edges that are sealed to side edges of the bag, the flap being sized and dimensioned such that the flap lies flush against the side of the bag except when stretched or drawn apart therefrom, the flap being disposed intermediate the recloseable fastener and the bottom. The fastener is adapted such that the amount of force necessary to separate the components, when such force is applied to interiors of the walls at a position between the fastener and the bottom and adjacent the fastener, is greatly exceed by the amount of force necessary to separate the components: when such force is applied to the walls adjacent the upper edge; and when such force is applied to the free edges of the flaps. The bag can be produced either on a pouch machine or a sideweld bag machine. A single web can be fed over a series of rollers and formers to make progressive folds and a zipper closure can be continuously fed to the inner side of the structure and sealed in place. Side seals are made intermittently to finish the bag. The seal on a sideweld version can be a bead seam whereas on the pouch machine the seal can be up to ¼″ wide.
Resealable and Reclosable Packaging Having Reduced-Curl, Pressure-Sensitive Seal Tape
A flexible package formed from a film of polymer packaging material having a first and second panels sealed at a top portion and a bottom portion, an elongate slit in the first panel, and an elongate strip of pressure-sensitive-adhesion, re-closing tape (“PSA tape strip”) applied to the surface of said first panel over the slit. The PSA tape strip has an adhesive edge portion abridging and releasably sealing the slit and a non-adhesive edge portion arranged on one side of said slit and lying against the first panel. The PSA tape strip is adapted so that the slit can be unsealed by gripping the non-adhesive edge portion and pulling the PSA tape strip away from the first panel until the adhesive edge portion no longer abridges the slit. The PSA tape strip comprises a base material of polymer film that is compatibly recyclable with said packaging material The PSA tape strip also resists curling when it is strained by pulling it away from said first panel to unseal the slit. Preferably, the PSA tape has secant modulus ratio (machine direction to cross direction) greater than 90%.
Resealable and Reclosable Packaging Having Reduced-Curl, Pressure-Sensitive Seal Tape
A flexible package formed from a film of polymer packaging material having a first and second panels sealed at a top portion and a bottom portion, an elongate slit in the first panel, and an elongate strip of pressure-sensitive-adhesion, re-closing tape (“PSA tape strip”) applied to the surface of said first panel over the slit. The PSA tape strip has an adhesive edge portion abridging and releasably sealing the slit and a non-adhesive edge portion arranged on one side of said slit and lying against the first panel. The PSA tape strip is adapted so that the slit can be unsealed by gripping the non-adhesive edge portion and pulling the PSA tape strip away from the first panel until the adhesive edge portion no longer abridges the slit. The PSA tape strip comprises a base material of polymer film that is compatibly recyclable with said packaging material The PSA tape strip also resists curling when it is strained by pulling it away from said first panel to unseal the slit. Preferably, the PSA tape has secant modulus ratio (machine direction to cross direction) greater than 90%.
Flat-bottom gusseted bag made from multi-layer sheet
A flat-bottomed bag is formed from a flexible sheet that initially is flat prior to being manipulated to form the bag. The sheet is a laminate of a first web and a second web laminated together by an adhesive layer disposed between the webs. The sheet defines a plurality of serially connected side wall panels collectively defining a vertically extending side wall of the bag, and a plurality of bottom panels respectively connected to the side wall panels at respective fold lines. The bottom panels are folded about the fold lines and are attached together to form a flat bottom wall configured to support the bag in an upright orientation. The adhesive layer is in a partial-coverage pattern that includes adhesive-free regions located along each fold line between each bottom panel and the respective side wall panel connected therewith.
Flat-bottom gusseted bag made from multi-layer sheet
A flat-bottomed bag is formed from a flexible sheet that initially is flat prior to being manipulated to form the bag. The sheet is a laminate of a first web and a second web laminated together by an adhesive layer disposed between the webs. The sheet defines a plurality of serially connected side wall panels collectively defining a vertically extending side wall of the bag, and a plurality of bottom panels respectively connected to the side wall panels at respective fold lines. The bottom panels are folded about the fold lines and are attached together to form a flat bottom wall configured to support the bag in an upright orientation. The adhesive layer is in a partial-coverage pattern that includes adhesive-free regions located along each fold line between each bottom panel and the respective side wall panel connected therewith.