Abstract: A fastener for a plastic bag comprising a male track including a male profile and an optional first fin extending from the male profile and a female track including a female profile and an optional second fin extending from the female profile. At least one of the first and second fins and/or one of the male and female profiles comprises a cyclic olefin copolymer or a combination of a cyclic olefin copolymer and one or more additional polymers. The cyclic olefin copolymer has a glass transition temperature, Tg, of greater than about 20° C. as determined by ASTM D3418. The cyclic olefin copolymer may comprise from about 10 to about 90 mol. % norbornene. The additional polymer is selected from a polyolefinic resin, an engineering resin, and a combination thereof.

Abstract: A closure arrangement for a reclosable polymeric bag is disclosed, the closure arrangement comprising convex and concave areas that facilitate opening the bag. To initially open the bag, first and second films are separated from each other by tearing perforations. Next, interlocked closure profiles are detached from each other by grabbing onto gripper ridges and pulling the opening of the bag apart. If the first or second film becomes tucked into the groove left by the perforations such that the gripper ridges are difficult to access even after tearing the perforations, then the end of the opening may be flexed up or down, thereby causing separation of the convex area and concave area to provide access to the gripper ridges.

Abstract: The closure device (121) includes interlocking fastening strips (130, 131) and a slider (132) slidably disposed on the fastening strips for facilitating the occlusion and deocclusion of the fastening strips when moved towards first and second ends thereof. A flexible slider (132) is provided for facilitating the attachment of the slider onto the fastening strips (130, 131) in the vertical Z axis (106). The slider (132) includes legs (240, 242) which provide resistance against the removal of the slider from the fastening strips (130, 131) in the vertical Z axis (106) thereafter. The closure device also provides resistance against the removal of the slider (132) from the fastening strips (130, 131) in the horizontal X axis (102).

Abstract: An end termination for use with a reclosable polymeric bag comprises providing a mixture comprising from about 70 to about 95 wt. % of a polyolefin, from about 5 to about 25 wt. % hydrocarbon, from about 0.01 to about 2 wt. % mold release agent, from about 0.1 to about 1 wt. % primary antioxidant, and at least about 0.06 wt. % secondary antioxidant.

Abstract: A reclosable plastic bag (10) having two panels (15) of plastics sheet or film joined to each other along their opposite side edges (12) to define a bag with an opening (13). An extruded closure/sealing means (14) of one or more inter-engagable elongate rib/groove configurations (14a, 14b) closes the opening, and a plurality of elongate strengthening ribs (18) are also extruded adjacent, and parallel, to the closure/sealing means (14) on each of the panels of the bag and also inwardly and outwardly of the closure means.

Abstract: A reclosable package for scoopable products, such as flour and detergent. The package has a closed plastic zipper installed in a gusset. The gusset comprises first and second panels connected at a fold line. The zipper comprises first and second zipper portions respectively joined to the first and second gusset panels. In one embodiment, the zipper portions are connected by a fold line situated adjacent the gusset fold line. In another embodiment, the zipper portions are connected by a fold line situated away from the gusset. In a third embodiment, the zipper portions are not connected prior to opening the package along the gusset fold line. A peel seal is placed between the zipper portions and above the interlocked profiled closure elements of the zipper.

Abstract: A closure arrangement for a reclosable polymeric bag is disclosed, the closure arrangement comprising convex and concave areas that facilitate opening the bag. To initially open the bag, first and second films are separated from each other by tearing perforations. Next, interlocked closure profiles are detached from each other by grabbing onto gripper ridges and pulling the opening of the bag apart. If the first or second film becomes tucked into the groove left by the perforations such that the gripper ridges are difficult to access even after tearing the perforations, then the end of the opening may be flexed up or down, thereby causing separation of the convex area and concave area to provide access to the gripper ridges.

Abstract: The closure device (121) includes first and second fastening strips (130, 131) arranged to be interlocked over a predetermined length. The first fastening strip (130) includes a first flange (163) which extends from the first fastening strip in a transverse Y axis (104) towards the second fastening strip. The second fastening strip (131) includes a second flange (153) which extends from the second fastening strip in the transverse Y axis (104) toward the first fastening strip. A slider (132) slidably engages the first and second fastening strips (130, 131). The slider (132) includes a separator and the separator engages the first flange (163) and the second flange (153) during deocclusion of the fastening strips (130, 131).

Abstract: A multi-piece slider member (150) is provided for use with a closure device having interlocking fastening strips (120, 130) disposed along opposing side walls of a storage container, such as a conventional plastic bag. The slider member (150) includes a first housing segment (160), a separate second housing segment (170), and a latching mechanism (200) for use in assembling the first and second housing segments together onto the fastening strips. The latching mechanism (200) includes a first member (210) disposed on the first housing segment and a cooperating second member (240) disposed on the second housing segment. When the first and second housing. segments (150, 160) are moved together during assembly, the second member (240) receives the first member (210) while the first member engages the second member to hold the first and second housing segments together in an assembled position. The slider member (150) also includes an alignment mechanism (270) for aligning the first and second housing segments.

Abstract: The closure device (121) includes first and second interlocking fastening strips (130, 131) arranged to be interlocked over a predetermined length and a slider (132) which slidably engages the first and second fastening strips. The fastening strips have a longitudinal X axis (160), a transverse Y axis (162) and a vertical Z axis (164). The slider (132) facilitates the occlusion of the fastening strips (130, 131) when moved towards a first end of the fastening strips and deocclusion of the fastening strips when moved towards a second end of the fastening strips. The fastening strips (130, 131) are occluded and deoccluded by moving the first fastening strip relative to the second fastening strip in substantially the vertical Z axis (164). The fastening strips may also move in the Y axis (162), rotate or deflect during occlusion. In addition, the fastening strips may include a locking feature (1244, 1245) to prevent unintentional deocclusion.

Abstract: A reclosable plastic bag includes a pouch and first and second extruded fastener members heat sealed or welded thereto. One of the fastener members is provided with a plurality of standoffs in a flange area providing spaces between it and the opposing flange of the opposing fastening member to permit heat sealing or welding of the fastener members to the respective sidewalls of the pouch without inadvertently heat sealing or welding the flanges of the opposing fastener members together.

Abstract: A reclosable thermoplastic bag having an offset fastener. The bag includes first and second sidewalls, each having a top, a bottom and two opposing side edges, the first and second sidewalls being attached together along the respective bottom and side edges; an inwardly folded top pleat positioned across the first sidewall; a reclosable fastener having at least two cooperating closure members, one closure member being positioned proximate to the top of the first sidewall above the pleat, the other closure member being positioned proximate to the top of the second sidewall, such that when the bag is filled and closed, the reclosable fastener is offset.

Abstract: A zipper profile for a fastener assembly is provided. The profile includes a male element and a female element. The female element has a pair of jaws that are movable with respect to one another about a common fulcrum region, and a pair of arms each of which are coupled to a corresponding one of the pair of jaws at the fulcrum region. Each of the arms has an end opposite from the fulcrum region that is shaped for engagement with a slider, and the jaws have an open position and a closed position. The arms are disposed to cause movement of the jaws between the closed position and the open position when the arms experience displacement about the fulcrum region. Displacement about the fulcrum region may be effectuated by motion of a slider relative to the arms. The male element is captured by the female element when the jaws are in the closed position and released when the jaws are in the open position.

Abstract: A fastener tape for use in the manufacture of reclosable plastic bags is provided. The fastener tape comprises an intermediate layer and a reclosable fastener profile thereon. The intermediate layer includes three layers of co-extruded plastic, with not more than 4% EVA as the outer two layers and HDPE as the middle layer. The intermediate layer is folded so as to bring portions of the intermediate layer into an opposing relationship. These opposing portions are then sealed together by a pair of seal bars. By carefully controlling the sealing temperature, a consistent peel seal is created between the opposing portions of the intermediate layer without the need for an adhesive.

Abstract: The present invention includes a reclosable back-seam bag and method for making the bag. The reclosable back-seam bag includes a bag body having a top seal and a bottom seal, and a front wall and a back wall. The front wall is joined to the back wall at the top seal and the bottom seal. A reclosable fastener assembly including two ends, a first continuous elongated profile strip and a second continuous elongated profile strip is included in the bag. The first continuous elongated profile and the second continuous elongated profile provide an airtight and watertight seal upon interconnection thereof. An airtight and/or watertight side seal at each end of the reclosable fastener assembly is also provided. A continuous airtight and watertight lower seal along the length of the reclosable fastener assembly is positioned below the profiles. The lower seal connects the reclosable fastener assembly to the front wall.

Abstract: The invention is a method for using flexible packaging in connection with incubating a sample in a liquid culture medium. A flexible, gusseted bag is first presterilized by irradiation. Then, the bag is prefilled with a presterilized liquid culture medium. The bag is self-supporting and takes on the characteristics of a rigid container when filled. Prefilling and sterilizing it enables it to be shipped to a laboratory. The bag is easy to open and reseal for introduction of a culture sample at the laboratory. After introduction, the sample is incubated in the bag.

Abstract: A pour-spout closure for use on a gusseted flexible package is provided, the package having an interior for holding some material and formed of a flexible material and including first and second panels connected to each other by respective side gussets. Each of the panels and gussets has an upper end portion, at least a portion of which conjoin to form an openable pour-through mouth for the package. When the pour-through mouth is opened, the material within the interior of the package can be poured out. The pour-spout closure is arranged for opening and re-closing the package's pour-through mouth and comprises first and second, elongated closure sections which are coupled together. The first closure section includes a first cut-away portion, and is arranged to be located, e.g, secured, on the first panel with the first cut-away portion disposed over at least a portion of the pour-through mouth. The second closure section includes a second cut-away portion, and is arranged to be located, e.g.

Abstract: An interlocking pour-spout closure for a flexible, gusseted package and a flexible gusseted package including such a closure. The package is formed of a flexible material and includes a front panel, a rear panel, and a pair of opposed side gussets. The package is initially sealed, e.g., by a peelable seal line. The panels and gussets each include a top portion. The package also includes a pour-through mouth, e.g., a portion of the panels and one side gusset is arranged to be removed from the remainder of the package. The pour-through mouth is located at the top of the package at one of the side gussets and is arranged to be opened by the pour-spout closure to provide access to the contents of the package. The closure includes a pair of closure sections hingedly secured to each other and each section includes a cut-away portion.

Abstract: Flexible packages for holding a product, e.g., dry cereal, which are arranged to be opened to form a bowl to enable the product to prepared therein and/or eaten therefrom. The packages each basically comprises a front panel, a rear panel, and a bottom panel, all formed of a flexible sheet material. The front and rear panels each include a top edge, a pair of opposed side edges, and a bottom edge. The front and rear panels are fixedly secured together along the side edges. The peripheral edge of the bottom panel is fixedly secured to the inside surface of the front and rear panels above their bottom edges to form a hollow pocket for receipt of the product. The front and rear panels of each package are sealed along their top edges to isolate the product in the pocket from the ambient atmosphere, but are separable, e.g., can be severed, adjacent their top edges to enable the front and rear panels to separate to convert the pocket into a bowl. The product can then be prepared, e.g.

Abstract: A reclosable plastic bag includes a pouch and first and second extruded fastener members heat sealed or welded thereto. One of the fastener members is provided with a plurality of standoffs in a flange area providing spaces between it and the opposing flange of the opposing fastening member to permit heat sealing or welding of the fastener members to the respective sidewalls of the pouch without inadvertently heat sealing or welding the flanges of the opposing fastener members together.

Abstract: A convertible package and bowl type container (10) has two overlaying sheets joined along their side edges by side seals (13) and folded to form container sides (19), container ends (20), a generally square bottom (14). The container has an elongated openable seal along the top of the two sides. The sides are of a height of between one to two times that of the major side dimension of the bottom. The container is reconfigurable between a closed configuration with the top seal closed and an open, self standing configuration with a squared off open top.

Abstract: The invention is a method for using flexible packaging in connection with incubating a sample in a liquid culture medium. A flexible, gusseted bag is first presterilized by irradiation. Then, the bag is prefilled with a presterilized liquid culture medium. The bag is self-supporting and takes on the characteristics of a rigid container when filled. Prefilling and sterilizing it enables it to be shipped to a laboratory. The bag is easy to open and reseal for introduction of a culture sample at the laboratory. After introduction, the sample is incubated in the bag.

Abstract: Fastener tape fabrication equipment and process for manufacturing fastener tape for attachment in an opening in the top of a reclosable plastic bag. A continuous strip of intermediate layer for carrying a continuous strip of profile fastener is provided from a delivery assembly with a constant tension to an applicator assembly. A pair of laterally spaced adhesive surfaces are also carried upon the intermediate layer. The intermediate layer passes over a generally V-shaped member, mounted upon the delivery assembly, in order to be folded. The profile is inserted into the fold of the intermediate layer. Circumferentially grooved wheels then align the profile with the intermediate layer as the intermediate layer and profile are directed into a plurality of sealing bars upon the applicator assembly to form the fastener tape. A first set of sealing bars seal the profile to the intermediate layer and a second set of sealing bars seal the adhesive surfaces together to form a peel seal on the intermediate layer.

Abstract: A snap closure for a flexible, gusseted package and a flexible gusseted packing including the closure. The package includes a mouth portion arranged to be opened to provide access to the contents of the package. The package is formed of a flexible material and includes a front panel, a rear panel, and a pair of opposed side gussets. The panels and gussets each include a top portion, which between them define the package's mouth. The package's mouth is initially sealed but arranged to be opened, e.g., peeled apart. The snap closure enables the resealing of the mouth of the package and is made up of a pair of elongated elements, one of which includes a tongue extending along the length of it. The other element includes an undercut groove extending along the length of it. The elements are arranged to be pressed together, whereupon the tongue of the one element enters the groove of the other element with portions of the panels and side gussets tightly interposed therebetween.

Abstract: A closure arrangement for a flexible package includes two base strips having channels and film-attachment portions, and a closure strip inserted within and slidably engaging the channels of the base strips. The closure arrangement includes shoulders on the channels configured to engage and retain the outer portions of the closure strip. The closure strip slides within the channels of the base strips to open and close the closure arrangement. A package and method of constructing a package are also described.

Abstract: A side-gored bag is provided which includes: a first panel film, a second panel film; a pair of V-members forming side gussets; and a zipper device including a first zipper tape, and a second zipper tape. The upper edges of the V-members are situated so as to be downwardly displaced by a distance w from the upper edges of the first and second panel films. The first zipper tape has a first meshing rib and the first zipper tape is bonded in a horizontal position to the first panel film over an area of the panel film which extends by a distance W (wherein W>w) from the upper edge in such a manner that both the lower side of the zipper tape and the first meshing rib are situated below the upper edges of the V-members so as to cover an upper part of each V-member. The second zipper tape has a second meshing rib and the second zipper tape is bonded to the second panel film in such a manner that the second meshing rib is aligned with the first meshing rib.

Abstract: A quickly accessible and fillable plastic bag unit includes a spacer unit having two layers, and a plastic bag having front and back walls which are joined together, and a pair of complementary separable zipper halves which are provided respectively on the front and back walls and which are spaced apart from the spacer unit at a predetermined distance. The plastic bag unit has an aperture unit formed through an intermediate portion of the spacer unit, two narrower outer uncut spaces which are respectively adjacent to the longitudinal sides of the plastic bag and which connect the spacer unit to the front and back walls, and two wider inner uncut spaces which are respectively adjacent to the aperture unit and which connect the spacer unit to the front and back walls. Each of the outer uncut spaces and an adjacent inner uncut space cooperatively define therebetween a slit line having a length which is longer than those of the uncut spaces.

Abstract: A flexible package includes a closure arrangement having first and second closure members. Each of the first and second closure members has a pull tab extending from a respective flange. The pull tabs are constructed and arranged to selectively disengage the first and second closure members and provide access to an interior of the flexible package. Each of the pull tabs is movable between a resting position, where the tab is lying against its respective flange, and a working position, where the tab is spaced from its respective flange. Methods for constructing and using a flexible package are provided herein.

Abstract: A bag holding system includes a stand, such as a header A-frame stand, or a beltboard. The stand includes a slot for receiving a tab defined on a bag assembly adapter. The bag assembly adapter also includes at least one first connector member for connecting with a second connector member defined on a bag assembly such as a saddle pack. The saddle pack is formed from a number of stacked polymeric sheets each including a first bag, a second bag, and a center strip portion having a first edge connected to the first bag and a second edge connected to the second bag. The second connector member includes an aperture extending through the center strip portions. The at least one first connector member of the bag assembly adapter may include a leg portion having a nub projecting through the aperture of the bag assembly so as to secure the bag assembly to the bag assembly adapter.

Abstract: A reclosable plastic bag has a bottom, sides, and a mouth and has a reclosable zipper for opening and resealing the plastic bag mouth. Heat seals are placed at each end of the zipper and each heat seal has an aperture therethrough and may form a pair of protruding hanging tabs. A protruding center tab extends from each side of said bag above the zipper and extending above the mouth of the bag such that each tab can be grabbed for opening the reclosable zipper. A method of making a reclosable zipper bag includes the steps of making a plastic bag having bottom, sides, and a mouth and having a reclosable zipper for opening and resealing the plastic bag mouth and heat sealing each end of the plastic bag zipper to seal the two sides together and punching an aperture in each of the heat seals and then cutting a protruding center tab in the plastic bag and forming an aperture through the center tab to form a reclosable plastic bag which is easily opened and resealed and has supporting tabs.

Abstract: A closure arrangement for a polymeric bag has a pair of opposing films joined at a fold line and perforated along the fold line. The arrangement includes a base strip, a pair of heat-resistant strips, and a peelable strip composed of peelable material. The base strip has opposing inner and outer surfaces, and the outer surface of the base strip is securably arranged with respect to one of the pair of opposing films of the polymeric bag. The pair of heat-resistant strips are securably arranged to the inner surface of the base strip, and are spaced from each other so as to form a gap therebetween. The peelable strip includes a first portion having opposing first and second surfaces and a stem portion extending perpendicular to the first surface of the top portion. The stem portion extends into the gap between the pair of heat-resistant strips and is arranged with respect to the inner surface of the base strip. Various other closure arrangements are also disclosed.

Abstract: A gripper ridge for use on a flexible package includes first and second walls normal to the flexible package with first and second extended ends and an end surface between the first and second extended ends. The end surface and first extended end are arranged to provide enhanced gripping friction perceptible to touch. The length of the first wall is greater than the length of the second wall, such that the end surface is angled. In one implementation, the end surface and first extended end form a rounded surface therebetween. One embodiment includes a flexible package with one or more gripper ridges attached to the interior of the flexible package. In other embodiments, one or more gripper ridges are attached to the exterior of the flexible package. A die for making a gripper ridge and methods for making a gripper ridge are also described.

Abstract: A flexible package includes first and second opposed panel sections, a header section having a hanghole, and a tear string. The header section is positioned adjacent the first and second panel sections and encloses a portion of the package. The tear string is enclosed and arranged in the header section to provide hanging support at the hanghole and to tear open the enclosed portion in response to a pulling force at an end of the tear string. A method and apparatus for making the flexible package are also featured.

Abstract: A zipper for a recloseable bag provides a heat-settable portion for adhering the zipper to a polymeric bag at a temperature below that known in the art in order to prevent permanently sealing the bag closed inadvertantly. The zipper includes elongated base strips having flange portions for adhering the inner surface of the base strip to the outer surface of a polymeric bag. The base strip is adhered to the polymeric bag by a heat-setting compound coextruded, coated or laminated to the inner surface of the flange. The flange portions may be thinner than other portions of the base strips to permit the flange portions to be fused to the polymeric bag at a lower temperature than previously practiced.

Abstract: A multi-seal flexible recloseable package having a tapered product cavity formed in one of the package sidewalls has a generally wedged-shaped cavity into which a doubled-over shingled stack of the food product slices are sealed. The package has a first, peelable hermetic seal located next to an access edge of the product cavity and a second, recloseable seal positioned directly above the peelable seal. Vertical extensions of the package sidewalls are sealed together at their tops to form a third package seal which has a tamper-evident tear strip. One or more openings in the vertical package extensions allow the package to be supported on a display hook.

Abstract: A resealable flexible thermoplastic bag including a front wall and a back wall, said walls being joined along the major portions of their opposite longitudinal edges and bottom; an open mouth adjacent to the top edge of said bag; a closure near the open mouth of said bag including an adhesive strip affixed to a first inner surface of one of a front wall or rear wall of a bag at a preselected distance from the opening of the bag; and a flap member strip affixed to a second inner surface of one of a front wall or rear wall of a bag at a preselected distance from the opening of the bag; said flap member of said bag being pressable against and into said adhesive strip on said first inner surface, whereby a seal is formed by contacting said adhesive strip with said flap member of said second inner surface.

Abstract: A resealable flexible thermoplastic bag including a front wall and a back wall, said walls being joined along the major portions of their opposite longitudinal edges and bottom; an open mouth adjacent to the top edge of said bag; a closure near the open mouth of said bag including an adhesive strip affixed to a first inner surface of one of a front wall or rear wall of a bag at a preselected distance from the opening of the bag; and a first roughened surface strip affixed to a second inner surface of one of a front wall or rear wall of a bag at a preselected distance from the opening of the bag; said roughened surface of said bag being pressable against and into said adhesive strip on said first inner surface, whereby a seal is formed by contacting said adhesive strip with said roughened surface of said second inner surface.

Abstract: A recloseable package has discrete, multiple product portion enclosures between first and second package films. Each product portion enclosure is separated from its adjacent product portion enclosure by a package central web portion. A recloseable seal is provided on the central web portion for each multiple product portion enclosure, and the product is hermetically sealed in its portion enclosure by a hermetic seal extending around the periphery thereof and interior of each recloseable seal.

Abstract: In one embodiment, a closure arrangement for a polymeric bag having a pair of opposing films comprises a wide base strip, a pair of narrow heat-resistant strips composed of heat-resistant material, and a T-shaped peelable strip composed of peelable material. The base strip has opposing inner and outer surfaces, and the outer surface of the base strip is adapted for attachment to one of the pair of opposing films of the polymeric bag. The pair of heat-resistant strips are attached to the inner surface of the base strip, and are positioned generally parallel to each other and spaced from each other so as to form a gap therebetween. The peelable strip includes a top portion having opposing first and second surfaces and a stem portion extending perpendicular to the first surface of the top portion. The stem portion extends into the gap between the pair of heat-resistant strips and is attached to the inner surface of the base strip.

Abstract: A reclosable plastic bag is provided having a zipper with profile strips on opposed walls. The profile strips consist of male and female profiles each surrounded by stabilizing wedges with the male wedges within the female wedges. An interlayer of low temperature melt material is interposed between at least a portion of each of the profile strips and its associated wall. The interlayer may span the full width of the profile strip or only a partial width of the strips.

Abstract: Snap and fill plastic film bags and a process of opening and placing product in the plastic film bags. A reclosable zipper is provided at the opening of the bag leading to the bag cavity. A lip extends from the front wall above the reclosable zipper and a header portion extends from the back wall above the reclosable zipper. A part of the header portion is supported on a support structure for carrying the bag and a perforation is provided on the header portion above the reclosable zipper. The bags are initially closed and, during the process of opening and placing product therein, the operator grips the bag front wall lip and by pulling the lip away from the support structure, the complementary zipper profiles are separated and, thus, opening the bag. Further pulling of the lip from the support structure causes the severing of the bag from the header portion at the perforation.

Abstract: An enclosed cover system with a releasable sealing edge for the protection of comic books comprising, a bag formed of thin flexible transparent plastic, the bag having a front sheet and a rear sheet with sealed bottom and side edges and an opened upper slot, the sheets forming a long base and a short width for the receipt of a comic book; and an insert formed of a relatively rigid transparent plastic material the insert having a long height and a short width whereby when positioned within the space of the bag, efficient room will remain for the receipt of a comic book.

Abstract: A snap fastener (11) having a base section (14), (17) to be welded to a bag body (22) is made of a linear chain low-density polyethylene (L-LDPE) or a compound resin of the linear chain low-density polyethylene and a low-density polyethylene (LDPE) as a sub-ingredient. A packaging bag is fabricated with the snap fastener from the bag body (22) and the pair of snap fastener half-members. When the snap fastener (11) is made of a compound resin of L-LDPE and LDPE, the composition ratio between them is set at 95-60 wt %:5-40 wt %. The melt index (MI) of the compound resin is set at a range of 1-15 g/10 minutes. The packaging bag body (22) is adapted to have an inner side layer made of L-LDPE. An outer side layer adhered to the inner side layer may be made of nylon so as to form the multilayered bag body.

Abstract: A multi-seal flexible recloseable package having a tapered product cavity formed in one of the package sidewalls has a generally wedged-shaped cavity into which a doubled-over shingled stack of the food product slices are sealed. The package has a first, peelable hermetic seal located next to an access edge of the product cavity and a second, recloseable seal positioned directly above the peelable seal. Vertical extensions of the package sidewalls are sealed together at their tops to form a third package seal which has a tamper-evident tear strip. One or more openings in the vertical package extensions allow the package to be supported on a display hook.

Abstract: A reclosable zipper for a reclosable bag comprises a first closure having a first base, a first pair of locking members integrally connected to the first base, and a center guide post integrally connected to the first base. The center guide post is positioned adjacent to and between the first pair of locking members. The zipper further comprises a second closure having a second base, a second pair of locking members integrally connected to the second base, and a pair of outer guide posts integrally connected to the second base. The second pair of locking members are positioned adjacent to and between the pair of outer guide posts. The second closure is disposed adjacent and opposite to the first closure, and the second closure is constructed and arranged to interlock with the first closure over a predetermined length by engagement of the second pair of locking members with the first pair of locking members.

Abstract: Generally, an infant nursing system will include a holder having an open end, for holding and engaging a collapsible liquid containing bag. The collapsible bag defines a chamber and has an open end permitting fluid communication with the chamber. The open end is also used for engaging the open end of the holder. The novel bag may include flexible material, having a permeability sufficient to hold a fluid, wherein the flexible material is arranged in a generally tubular shape, defining a first end and a second end. The second end is sealed in a fluid tight fashion, thereby forming a chamber for holding fluid. The first end engages the open end of the holder. A pair of flaps is formed at the first end for assisting in opening the bag to provide access to the chamber. A gripping member is formed on the pair of flaps, for enhancing the gripping of the flaps. It is preferred for the gripping member to include holes formed in the flaps or textured surfaces.

Abstract: A plastic bag with a recloseable zipper-type closure is formed with grip strips on its lips to ease the opening of the bags. The grip strips are extruded from a grip strip extruder which is moved relative to a movement of the zipper type profile to produce a regularly repeating pattern. The strips facilitate opening the bag even with wet or oily fingers. A method and apparatus for forming the same is also disclosed.

Abstract: A flexible fastener comprises a pair of opposed fastener strips each including a base plate; and a longitudinal marginal grip portion integrally formed along one longitudinal edge thereof. A pair of opposed female and male coupling portion are mounted on the inner sides on the base plates so as to project toward each other to coming into coupling engagement with each other, thereby releasably join the opposed fastener strips. Two pairs of elongated ridges are provided on the inner sides of the fastener strips, and a pair of elongated ridge are provided on the outer sides of fastener strips so as to provide increased friction between fingers and the fastener strips.

Abstract: A reclosable bag is formed of walls defining a closure with a mouth. The closure includes an asymmetric arrowhead male profile extending along an internal surface of one of the walls and a female profile having stubs adapted to interengage with said male profile and extending along an internal surface of the other wall. Both profiles also include stabilizer wedges on both sides thereof and parallel thereto across the width of the bag. The stabilizer wedges give the zipper formed by the male and female profiles a wide-track feel, and determine the force required to open the bag both from inside and from outside.

Abstract: A recloseable package having recloseable profile strips with a heat barrier is disclosed. The profile strips have flange elements and recloseable , mated profile strips. The package is made by providing mated top and bottom profile strips, providing top and bottom package films on opposite sides of the mated strips and applying heat and pressure to the films adjacent the flanges sufficient to simultaneously form heat seals respectively between the top film and the top profile strip flange and between the bottom film and bottom profile strip flange. The heat barrier may comprise a thickened flange element, buffer strip or a coextrusion of high temperature resin on the inside layer of the flange element. The heat barrier prevents the flanges from fusing together during the formation of flange-film seals.