WO2009048711A1 - High-burst, easy-opening slider zipper for reclosable packages or bags - Google Patents

High-burst, easy-opening slider zipper for reclosable packages or bags Download PDF

Info

Publication number
WO2009048711A1
WO2009048711A1 PCT/US2008/075928 US2008075928W WO2009048711A1 WO 2009048711 A1 WO2009048711 A1 WO 2009048711A1 US 2008075928 W US2008075928 W US 2008075928W WO 2009048711 A1 WO2009048711 A1 WO 2009048711A1
Authority
WO
WIPO (PCT)
Prior art keywords
zipper
exterior
flange
interior
bag
Prior art date
Application number
PCT/US2008/075928
Other languages
French (fr)
Inventor
David J. Anzini
Rusty Koenigkramer
Original Assignee
Illinois Tool Works Inc.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Illinois Tool Works Inc. filed Critical Illinois Tool Works Inc.
Priority to EP08837806A priority Critical patent/EP2207725A1/en
Publication of WO2009048711A1 publication Critical patent/WO2009048711A1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D33/00—Details of, or accessories for, sacks or bags
    • B65D33/16—End- or aperture-closing arrangements or devices
    • B65D33/25—Riveting; Dovetailing; Screwing; using press buttons or slide fasteners
    • B65D33/2508—Riveting; Dovetailing; Screwing; using press buttons or slide fasteners using slide fasteners with interlocking members having a substantially uniform section throughout the length of the fastener; Sliders therefor

Definitions

  • the present invention relates to a slider zipper which has a high burst strength, allowing the zipper to withstand dropping or shock loading without the zipper opening, while retaining an easy opening capability for the user.
  • references relate to large reclosable packages or bags which are bottom filled and which have a zipper with high burst resistance which further maintains relative ease in manual opening. Further improvements are always sought in the art of reclosable packages or bags, particularly in achieving a high burst capability while maintaining relative ease in manual opening in reclosable packages or bags.
  • a reclosable package or bag including a reclosable zipper
  • the reclosable zipper includes three distinct flanges in which one face of the middle or interior zipper flange is coated with a peel seal material. The peel seal is activated to seal the interior flange to the exterior flange of the opposing profile so as to render the top of the package or bag closed. This takes advantage of the characteristic of a peel seal having a much higher (as much as ten times) shear separating force than a peel separating force.
  • the zipper is configured and arranged to be sealed to the inside faces of the package or bag. Therefore, the external surfaces of the two exterior zipper flanges include a coextruded material that is heat activated to adhere the zipper to the substrate. Alternatively, the exterior surfaces of the zipper flanges can be adhered to the substrate with glue.
  • the zipper assembly is designed to be "post-applied" by insertion into the package or bag. The zipper assembly would typically be sealed to one interior face of the package or bag at the converter, to allow for subsequent filling at another site. The zipper assembly can be applied to one package or bag surface behind the gussets, which will allow for a full mouth opening, or the zipper can be applied over the gussets, which creates an elliptical opening for the filling operation.
  • the second face of the package or bag substrate is sealed to the zipper assembly after the filling operation.
  • this zipper assembly could be applied using other methods, such as, but not limited to, an in-line process using a converter's pouch machine.
  • Figure l is a plan view of a package or bag, with the gussets shown in phantom, and further including the zipper of the present invention.
  • Figure 2 is a cross-sectional view along plane 2-2 of Figure 1.
  • Figure 3 is an alternative cross-sectional view along plane 2-2 of Figure 1, illustrating the peel seal being put into shear mode by a load on the walls of the package or bag.
  • Figure 4 is a first alternative cross-sectional view along a plane similar to that of plane 44 of Figure 1, but prior to the attachment of the second exterior flange and the completion of the package or bag.
  • Figure 5 is a second alternative cross-sectional view along a plane similar to that of plane 4-4 of Figure 1 , but prior to the attachment of the second exterior flange and the completion of the package or bag.
  • Figure 1 is a plan view of a typical package or bag 100, including the zipper 10 of the present invention.
  • Package or bag 100 includes first and second co-extensive panels of web or film 102, 104, respectively, which are typically formed of polymeric material, multi-wall paper or similar packaging material.
  • the package or bag 100 may be envisioned to be dimensioned to hold between three and thirty-three pounds of product, but can certainly be provided in a range of other sizes.
  • First and second panels 102, 104 are joined at the bottom 106 (typically square pre-made) and the sides 108, 110 thereby forming a mouth 112 between the upper edges of the first and second panels 102, 104.
  • Gussets 114, 116 are shown in phantom and are further formed at sides 108, 110, respectively (also see Figures 4 and 5 for the details of the gussets 114, 116).
  • Zipper 10 is sealed to the interior of the upper edges of the first and second panels 102, 104 thereby making mouth 112, and hence package or bag 100, reclo sable.
  • Zipper 10 is shown in detail in the cross-sectional view of Figure 2.
  • Zipper 10 includes first profile 12 and second profile 14.
  • First profile 12 includes first interlocking element 16 from which stem 18 descends.
  • First exterior flange 20 and interior flange 22 descend from stem 18 in a Y-shaped configuration.
  • the interior face 26 of first exterior flange 20 is (optionally) provided with first layer of heat- resistant coating 28 while the interior face 30 of interior flange 22 is (optionally) provided with second layer of heat-resistant coating 32.
  • the optional first and second layers of heat resistant coating 28, 32 typically of nitrocellulose, face each other and are intended to prevent or minimize any sealing of first exterior flange 20 to interior flange 22 during any heat sealing or other processes involving heat.
  • Second profile 14 includes second interlocking element 40 from which second exterior flange 42 descends.
  • Peel seal 44 is formed between the exterior face 46 of interior flange 22 and the interior face 43 of second exterior flange 42. This is typically done by coating the exterior face 46 of interior flange 22 with peel seal material and activating the peel seal so as join the interior face 43 of second exterior flange 44. As peel seal 44 is typically not resealable after the initial opening by the consumer, this provides a tamper-evident quality.
  • a slider 50 is typically mounted on first and second profiles 12, 14 of zipper 10 and operates in the conventional manner of separating the first and second interlocking elements 16, 40 when moved in an opening direction and interlocking the first and second interlocking elements 16, 40 when moved in a closing direction (opposite the opening direction).
  • first and second exterior flanges 20, 42 are sealed, glued, or otherwise joined to the interior of respective first and second co-extensive panels 102, 104 of web or film.
  • the exterior faces of first and second exterior flanges 20, 42 are provided with a material, typically coextruded, that is heat activated to adhere zipper 10 to the first and second co-extensive panels 102, 104.
  • Packages or bags 100 of this configuration are typically top filled prior to the attachment, or the completion of the attachment of zipper 10 to package or bag 100.
  • one of the first and second exterior flanges 20, 42 is sealed to the interior of the corresponding first or second co-extensive panel 102, 104 at the converter to allow for filling with product at another site.
  • the selected exterior flange (illustrated as second exterior flange 42 in Figures 4 and 5) can be sealed to one co-extensive panel (illustrated as second panel 104 in Figures 4 and 5) behind the gussets 114, 116 as shown in Figure 4, which will allow for a full opening of mouth 112.
  • the selected exterior flange can be sealed to one co-extensive panel over the gussets 114, 116, which will create an elliptical opening as shown in Figure 5.
  • the remaining exterior flange is typically sealed to the corresponding panel after the filling process.
  • first and second coextensive panels 102, 104 In the resulting configuration, a load or force on first and second coextensive panels 102, 104, such as might be caused by dropping the full package or bag 100, will extend the panels 102, 104 as shown in Figure 3, thereby exerting a shear force on peel seal 44 and generally directing the load away from the interlocked first and second interlocking elements 16, 40.
  • a peel seal can typically withstand many times more force in the shear configuration than in the peel configuration, this provides a zipper 10, and hence a package or bag 100, which can withstand high burst forces (with peel seal 44 in the shear mode) while maintaining the easy open characteristics of the operation of the slider 50 (thereby separating the first and second interlocking elements 16, 40) and opening the peel seal 44 in the peel mode, with substantially reduced force, such as is typically manually done by a consumer after the high burst forces have subsided.

Abstract

The reclosable package or bag includes a zipper which allows for high burst strength while maintaining easy opening capability. The zipper includes first and second profiles which include respective first and second exterior flanges which are glued or heat sealed to corresponding first and second panels of the package or bag. The first profile further includes an interior flange. A peel seal is formed between the interior flange and the second exterior flange. In this configuration, a high load on the panels puts the peel seal into a shear mode, which results in greatly increased strength of the peel seal and therefore of both the zipper and the package or bag. After the high load subsides, the peel seal returns to the configuration in which it can be separated by a much lower peel force, such as is applied by a consumer during ordinary opening.

Description

HIGH-BURST, EASY-OPENING SLIDER ZIPPER FOR RECLOSABLE PACKAGES OR BAGS
BACKGROUND OF INVENTION Field of the Invention
The present invention relates to a slider zipper which has a high burst strength, allowing the zipper to withstand dropping or shock loading without the zipper opening, while retaining an easy opening capability for the user.
Description of the Prior Art The prior art of high-burst easy-opening of reclosable packages or bags, has become well-developed, particularly in view of commonly assigned U.S. patent application serial No. 1 1/728,477 entitled "High Burst Zipper Assembly for Large Reclosable Packages"; U.S. patent application serial No. 11/728,405 entitled "Method of Producing High Burst Zipper Assemblies for Large Reclosable Packages" and application serial No. 1 1/728,413 entitled "Hot-melt Adhesive Systems for Zipper Assemblies on Large Bag Constructions of Various Substrates", all filed on March 26, 2007. In particularly, these references relate to large reclosable packages or bags which are bottom filled and which have a zipper with high burst resistance which further maintains relative ease in manual opening. Further improvements are always sought in the art of reclosable packages or bags, particularly in achieving a high burst capability while maintaining relative ease in manual opening in reclosable packages or bags.
OBJECTS AND SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide a reclosable package or bag, including a reclosable zipper, wherein the zipper maintains a high burst strength.
It is therefore a further object of the present invention to provide a reclosable package or bag, including a reclosable zipper, wherein the zipper retains a relative ease in manual opening. i These and other objects are attained by providing a reclosable package, bag or other packaging, including a reclosable zipper. The reclosable zipper includes three distinct flanges in which one face of the middle or interior zipper flange is coated with a peel seal material. The peel seal is activated to seal the interior flange to the exterior flange of the opposing profile so as to render the top of the package or bag closed. This takes advantage of the characteristic of a peel seal having a much higher (as much as ten times) shear separating force than a peel separating force. To this end, a load placed on the package puts the peel seal into a shear mode thereby increasing the burst strength of the package or bag. The zipper is configured and arranged to be sealed to the inside faces of the package or bag. Therefore, the external surfaces of the two exterior zipper flanges include a coextruded material that is heat activated to adhere the zipper to the substrate. Alternatively, the exterior surfaces of the zipper flanges can be adhered to the substrate with glue. Typically, the zipper assembly is designed to be "post-applied" by insertion into the package or bag. The zipper assembly would typically be sealed to one interior face of the package or bag at the converter, to allow for subsequent filling at another site. The zipper assembly can be applied to one package or bag surface behind the gussets, which will allow for a full mouth opening, or the zipper can be applied over the gussets, which creates an elliptical opening for the filling operation.
The second face of the package or bag substrate is sealed to the zipper assembly after the filling operation.
However, it is likewise envisioned that this zipper assembly could be applied using other methods, such as, but not limited to, an in-line process using a converter's pouch machine.
BRIEF DESCRIPTION OF THE DRAWINGS
Further objects and advantages of the invention will become apparent from the following description and from the accompanying drawings and claims, wherein: Figure l is a plan view of a package or bag, with the gussets shown in phantom, and further including the zipper of the present invention.
Figure 2 is a cross-sectional view along plane 2-2 of Figure 1.
Figure 3 is an alternative cross-sectional view along plane 2-2 of Figure 1, illustrating the peel seal being put into shear mode by a load on the walls of the package or bag.
Figure 4 is a first alternative cross-sectional view along a plane similar to that of plane 44 of Figure 1, but prior to the attachment of the second exterior flange and the completion of the package or bag. Figure 5 is a second alternative cross-sectional view along a plane similar to that of plane 4-4 of Figure 1 , but prior to the attachment of the second exterior flange and the completion of the package or bag.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT Referring now to the drawings in detail wherein like numerals indicate like elements throughout the several views, one sees that Figure 1 is a plan view of a typical package or bag 100, including the zipper 10 of the present invention.
Package or bag 100 includes first and second co-extensive panels of web or film 102, 104, respectively, which are typically formed of polymeric material, multi-wall paper or similar packaging material. The package or bag 100 may be envisioned to be dimensioned to hold between three and thirty-three pounds of product, but can certainly be provided in a range of other sizes.
First and second panels 102, 104 are joined at the bottom 106 (typically square pre-made) and the sides 108, 110 thereby forming a mouth 112 between the upper edges of the first and second panels 102, 104. Gussets 114, 116 are shown in phantom and are further formed at sides 108, 110, respectively (also see Figures 4 and 5 for the details of the gussets 114, 116).
Zipper 10 is sealed to the interior of the upper edges of the first and second panels 102, 104 thereby making mouth 112, and hence package or bag 100, reclo sable.
Zipper 10 is shown in detail in the cross-sectional view of Figure 2. Zipper 10 includes first profile 12 and second profile 14. First profile 12 includes first interlocking element 16 from which stem 18 descends. First exterior flange 20 and interior flange 22 descend from stem 18 in a Y-shaped configuration. The interior face 26 of first exterior flange 20 is (optionally) provided with first layer of heat- resistant coating 28 while the interior face 30 of interior flange 22 is (optionally) provided with second layer of heat-resistant coating 32. The optional first and second layers of heat resistant coating 28, 32, typically of nitrocellulose, face each other and are intended to prevent or minimize any sealing of first exterior flange 20 to interior flange 22 during any heat sealing or other processes involving heat.
Second profile 14 includes second interlocking element 40 from which second exterior flange 42 descends. Peel seal 44 is formed between the exterior face 46 of interior flange 22 and the interior face 43 of second exterior flange 42. This is typically done by coating the exterior face 46 of interior flange 22 with peel seal material and activating the peel seal so as join the interior face 43 of second exterior flange 44. As peel seal 44 is typically not resealable after the initial opening by the consumer, this provides a tamper-evident quality.
Additionally, as shown in Figure 1, a slider 50 is typically mounted on first and second profiles 12, 14 of zipper 10 and operates in the conventional manner of separating the first and second interlocking elements 16, 40 when moved in an opening direction and interlocking the first and second interlocking elements 16, 40 when moved in a closing direction (opposite the opening direction).
The exterior faces of first and second exterior flanges 20, 42 are sealed, glued, or otherwise joined to the interior of respective first and second co-extensive panels 102, 104 of web or film. In the case of heat sealing, the exterior faces of first and second exterior flanges 20, 42 are provided with a material, typically coextruded, that is heat activated to adhere zipper 10 to the first and second co-extensive panels 102, 104. Packages or bags 100 of this configuration are typically top filled prior to the attachment, or the completion of the attachment of zipper 10 to package or bag 100. Typically, one of the first and second exterior flanges 20, 42 is sealed to the interior of the corresponding first or second co-extensive panel 102, 104 at the converter to allow for filling with product at another site. The selected exterior flange (illustrated as second exterior flange 42 in Figures 4 and 5) can be sealed to one co-extensive panel (illustrated as second panel 104 in Figures 4 and 5) behind the gussets 114, 116 as shown in Figure 4, which will allow for a full opening of mouth 112. Alternatively, the selected exterior flange can be sealed to one co-extensive panel over the gussets 114, 116, which will create an elliptical opening as shown in Figure 5.
The remaining exterior flange is typically sealed to the corresponding panel after the filling process.
In the resulting configuration, a load or force on first and second coextensive panels 102, 104, such as might be caused by dropping the full package or bag 100, will extend the panels 102, 104 as shown in Figure 3, thereby exerting a shear force on peel seal 44 and generally directing the load away from the interlocked first and second interlocking elements 16, 40. As a peel seal can typically withstand many times more force in the shear configuration than in the peel configuration, this provides a zipper 10, and hence a package or bag 100, which can withstand high burst forces (with peel seal 44 in the shear mode) while maintaining the easy open characteristics of the operation of the slider 50 (thereby separating the first and second interlocking elements 16, 40) and opening the peel seal 44 in the peel mode, with substantially reduced force, such as is typically manually done by a consumer after the high burst forces have subsided.
Thus the several aforementioned objects and advantages are most effectively attained. Although preferred embodiments of the invention have been disclosed and described in detail herein, it should be understood that this invention is in no sense limited thereby and its scope is to be determined by that of the appended claims.

Claims

CLAIMS What is Claimed is:
1. A zipper for a reclosable package or bag, comprising: a first profile, including a first interlocking element, a first exterior flange and an interior flange; a second profile, including a second interlocking element and a second exterior flange; and a releasable connection between the interior flange and the second exterior flange.
2. The zipper of Claim 1 wherein the releasable connection is not resealable.
3. The zipper of Claim 1 wherein the releasable connection is tamper evident.
4. The zipper of Claim 1 wherein the releasable connection is more resistant to a shear force than to a peel force.
5. The zipper of Claim 1 wherein the releasable connection is a peel seal.
6. The zipper of Claim 5 wherein forces on the first and second exterior flanges tend to apply a shear force to the peel seal.
7. The zipper of Claim 4 wherein a stem extends from the first profile and the first exterior flange and the interior flange extend from the stem.
8. The zipper of Claim 7 wherein the stem, the first exterior flange and the interior flange form a Y-shaped structure.
9. The zipper of Claim 6 further including a slider mounted on the first and second profiles, and which separates the first and second interlocking elements when moved in a first direction which interlocks the first and second interlocking elements when moved in a second direction.
10. The zipper of Claim 9 wherein exterior surfaces of the first and second exterior flanges are configured and arranged to be attached to interior walls of respective first and second walls of a reclosable package.
11. A zipper for reclosable packaging, comprising: a first profile, including a first interlocking element, a first exterior flange and an interior flange, wherein an exterior wall of the first exterior flange is attached to an interior of a first wall of a reclosable package or bag; a second profile, including a second interlocking element and a second exterior flange, wherein an exterior wall of the second exterior flange is attached to an interior of a second wall of a reclosable package or bag; and a releasable connection between the interior flange and the second exterior flange.
12. The zipper of Claim 11 wherein the releasable connection is not resealable.
13. The zipper of Claim 11 wherein the releasable connection is tamper evident.
14. The zipper of Claim 11 wherein the releasable connection is more resistant to a shear force than to a peel force.
15. The zipper of Claim 11 wherein the releasable connection is a peel seal.
16. The zipper of Claim 15 wherein forces on the first and second exterior flanges tend to apply a shear force to the peel seal.
17. The zipper of Claim 14 wherein a stem extends from the first profile and the first exterior flange and the interior flange extend from the stem.
18. The zipper of Claim 17 wherein the stem, the first exterior flange and the interior flange form a Y-shaped structure.
19. The zipper of Claim 16 further including a slider mounted on the first and second profiles, which separates the first and second interlocking elements when moved in a first direction and which interlocks the first and second interlocking elements when moved in a second direction.
20. The zipper of Claim 19 wherein exterior surfaces of the first and second exterior flanges are attached to interiors of respective first and second walls of a reclosable package or bag by heat sealing.
PCT/US2008/075928 2007-10-10 2008-09-11 High-burst, easy-opening slider zipper for reclosable packages or bags WO2009048711A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP08837806A EP2207725A1 (en) 2007-10-10 2008-09-11 High-burst, easy-opening slider zipper for reclosable packages or bags

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11/973,769 2007-10-10
US11/973,769 US20090097783A1 (en) 2007-10-10 2007-10-10 High-burst, easy-opening slider zipper for reclosable packages or bags

Publications (1)

Publication Number Publication Date
WO2009048711A1 true WO2009048711A1 (en) 2009-04-16

Family

ID=40029031

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2008/075928 WO2009048711A1 (en) 2007-10-10 2008-09-11 High-burst, easy-opening slider zipper for reclosable packages or bags

Country Status (3)

Country Link
US (1) US20090097783A1 (en)
EP (1) EP2207725A1 (en)
WO (1) WO2009048711A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090067761A1 (en) * 2006-08-23 2009-03-12 Illinois Tool Works Inc. High burst closure assembly for large packages
US7621105B2 (en) * 2006-08-23 2009-11-24 Illinois Tool Works Inc. Method of producing high burst zipper assemblies for large reclosable packages
US20090263048A1 (en) * 2008-04-16 2009-10-22 Iannelli Ii Michael Louis Bag Structures And Methods Of Assembling The Same
US8142077B2 (en) * 2008-04-16 2012-03-27 Graphic Packaging International, Inc. Bag structures and methods of assembling the same

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020100144A1 (en) 2001-01-30 2002-08-01 Zdenek Machacek Reclosable zipper strip with coated webs
US20030002753A1 (en) 1998-06-04 2003-01-02 Stolmeier Robert C. Scored tamper evident fastener tape
US20030179955A1 (en) 2002-03-20 2003-09-25 Rehwinkel Gary E. Reclosable polymeric bags with tamper evident features

Family Cites Families (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3172443A (en) * 1962-02-19 1965-03-09 Ausnit Steven Plastic fastener
US3532571A (en) * 1967-06-28 1970-10-06 Steven Ausnit Method and apparatus for forming continuous plastic tubing with separable pressure reclosable fastener strips attached to the surface thereof
US3655503A (en) * 1969-01-13 1972-04-11 Crown Zellerbach Corp Package of composite film with peelable, heatsealable surfaces
US4363345A (en) * 1980-06-02 1982-12-14 Union Carbide Corporation Reclosable container
AT386535B (en) * 1982-11-22 1988-09-12 Fischer Gmbh LIGHTWEIGHT CONSTRUCTION
US4682366A (en) * 1985-08-27 1987-07-21 Minigrip, Incorporated Attachment of plastic zipper to incompatible bag wall web
US4925316A (en) * 1986-08-11 1990-05-15 Minigrip, Inc. Reclosable bag having an outer reclosable zipper type closure and inner non-reclosable closure
AU606168B2 (en) * 1987-05-20 1991-01-31 Toyo Seikan Kaisha Ltd. Easily openable sealed container
US4846585A (en) * 1988-01-29 1989-07-11 Minigrip, Inc. Easy open bag structure
US4817188A (en) * 1988-03-07 1989-03-28 Minigrip, Inc. Bag with separate attached zipper and method of making
US4912616A (en) * 1988-04-15 1990-03-27 Minigrip, Inc. Bag with infold along flange for differential opening force
CA1334955C (en) * 1988-11-21 1995-03-28 Kenneth R. Makowka Tamper-evident sealing system for envelope and method of making same
US5017021A (en) * 1989-05-19 1991-05-21 Reynolds Consumer Products, Inc. Reclosable profile having improved closure members
US5116301A (en) * 1989-11-30 1992-05-26 Lps Industries, Inc. Method of making a double zipper pouch
US5470156A (en) * 1994-04-11 1995-11-28 Reynolds Consumer Products, Inc. Closure arrangement having a peelable seal
US5513915A (en) * 1994-04-11 1996-05-07 Reynolds Consumer Products Inc. Closure arrangement having a breakaway seal
JP3725917B2 (en) * 1995-09-04 2005-12-14 出光興産株式会社 Occlusion device and packaging bag with occlusion device
US6071011A (en) * 1999-08-12 2000-06-06 Tenneco Packaging, Inc. Fill-through-the-top package
US6273607B1 (en) * 2000-01-18 2001-08-14 Reynolds Consumer Products, Inc. Reclosable package having a slider device and tamper-evident structure
US6354738B1 (en) * 2000-10-24 2002-03-12 Illinois Tool Works Inc. Tamper evident reclosable plastic bag
WO2002074645A2 (en) * 2001-03-15 2002-09-26 Velcro Industries B.V. Reclosable bag with expansion gusset
US6901637B2 (en) * 2001-10-03 2005-06-07 Illinois Tool Works Inc. Zipper with pre-activated peel-seal
US6830377B2 (en) * 2002-05-30 2004-12-14 Illinois Tool Works Inc. Reclosable packaging with gas barrier incorporated in zipper
US6910805B2 (en) * 2002-09-30 2005-06-28 Illinois Tool Works Inc. Method for sealing zipper assembly to bag making film at three or more points
US6805485B2 (en) * 2002-10-02 2004-10-19 Illinois Tool Works Inc. Gusseted reclosable package with slider-operated zipper
US6979482B2 (en) * 2002-11-08 2005-12-27 Exopack-Technology, Llc Multiwall bag with zipper and fin
US7090904B2 (en) * 2002-11-08 2006-08-15 Exopack, L.L.C. Enhanced slider zipper multiwall bag and associated methods

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030002753A1 (en) 1998-06-04 2003-01-02 Stolmeier Robert C. Scored tamper evident fastener tape
US20020100144A1 (en) 2001-01-30 2002-08-01 Zdenek Machacek Reclosable zipper strip with coated webs
US20030179955A1 (en) 2002-03-20 2003-09-25 Rehwinkel Gary E. Reclosable polymeric bags with tamper evident features

Also Published As

Publication number Publication date
US20090097783A1 (en) 2009-04-16
EP2207725A1 (en) 2010-07-21

Similar Documents

Publication Publication Date Title
US5238306A (en) Method of producing a sealing system for a reclosable webbed-wall package, and system made
US7963007B2 (en) High burst zipper assembly for large reclosable packages
US6481890B1 (en) Reclosable zipper having intermittent thickened flange; package; and methods
EP1607340B1 (en) Fastener bag
US6244748B1 (en) Plastic package with fastener
US7758242B2 (en) Recloseable zipper with sealant on inner and outer surfaces of closure members
JP2004512233A (en) Reclosable bag
WO2008022308A2 (en) Resealable package with tamper-evident structure and method for making same
JP2004515419A (en) Slider resealable package with double peel seal
CZ20013409A3 (en) Standing bag
US20090067761A1 (en) High burst closure assembly for large packages
WO2009048711A1 (en) High-burst, easy-opening slider zipper for reclosable packages or bags
EP1010632B1 (en) Plastic container with fastener
US20170203901A1 (en) Easy-open and reclosable flow wrap package
EP1516824A1 (en) Reclosable pack and production method thereof
JP2011073706A (en) Re-closable packaging bag

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 08837806

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

REEP Request for entry into the european phase

Ref document number: 2008837806

Country of ref document: EP

WWE Wipo information: entry into national phase

Ref document number: 2008837806

Country of ref document: EP