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WO2008137295A1 - Soufflets de sacs étanches - Google Patents

Soufflets de sacs étanches Download PDF

Info

Publication number
WO2008137295A1
WO2008137295A1 PCT/US2008/060989 US2008060989W WO2008137295A1 WO 2008137295 A1 WO2008137295 A1 WO 2008137295A1 US 2008060989 W US2008060989 W US 2008060989W WO 2008137295 A1 WO2008137295 A1 WO 2008137295A1
Authority
WO
WIPO (PCT)
Prior art keywords
gusset
wall
bag
glue
reclosable package
Prior art date
Application number
PCT/US2008/060989
Other languages
English (en)
Inventor
Charles Greco
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.
Publication of WO2008137295A1 publication Critical patent/WO2008137295A1/fr

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
    • B65D31/00—Bags or like containers made of paper and having structural provision for thickness of contents
    • B65D31/10—Bags or like containers made of paper and having structural provision for thickness of contents with gusseted sides
    • 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 improving the leak-proof or spill-resistant quality of gussets in reclosable packages, particularly those made with multi-wall paper or woven polypropylene.
  • gussets can increase the tendency for the contents of the reclosable package or bag to leak from the gusset area proximate to the intersection of the package or bag walls and the zipper. More specifically, the contents can travel up the center of the package or bag, between the zipper profiles and out the gusset.
  • Figure 1 is a plan view, partially in phantom, of a prior art gusseted package or bag, showing the route through which contents may inadvertently escape.
  • Figure 2 is a cross-sectional view along plane 2-2 of Figure 1.
  • Figure 3 is a plan view of the gusseted walls of a reclosable package or bag, prior to application of a zipper assembly, illustrating where the glue or adhesive is applied in an embodiment of the present invention.
  • Figure 4 is a cross-sectional view along plane 4-4 of Figure 2.
  • Figure 5 is a plan view, partially in phantom, of the gusseted package or bag of the present invention.
  • Figure 6 is a plan view, partially in phantom, of a first alternative embodiment of the present invention.
  • Figure 7 is a cross-sectional, partially exploded, view along plane 7-7 of Figure 6.
  • Figure 8 is a cross-sectional view, partially exploded, along plane 8-8 of Figure 6 (not including the zipper).
  • Figure 9 is an alternative cross-sectional, partially exploded view, along plane 4-4 of Figure 3, thereby illustrating a second alternative embodiment of the present invention.
  • Figure 1 is a plan view, partially in phantom, of a prior art reclosable package or bag 100 and that Figure 2 is a cross-sectional view thereof.
  • the package or bag 100 is formed from coextensive front wall 102 and rear wall 104 which are typically formed from polymeric materials (such as, but not limited to, polyethylene or polypropylene, including woven polypropylene), multi-wall paper or laminates.
  • Gussets 106, 108 are formed as inwardly pointing folds between the side edges of front and rear walls 102, 104, typically integral with, or at least of the same material as, front and rear walls 102, 104.
  • Gusset 106 is formed from gusset walls 106a, 106b in an inwardly pointing V-shaped configuration while gusset 108 is formed from gusset walls 108a, 108b in an inwardly pointing V-shaped configuration.
  • the bottom edges of front and rear walls 102, 104 are sealed or otherwise closed or joined to form bottom 110. Mouth 112 is formed between the top edges of front and rear walls 102, 104.
  • Zipper assembly 200 is sealed, glued or otherwise secured to the upper exterior of front and rear walls 102, 104.
  • zipper assembly 200 includes first profile 202 and second profile 204 which are, referring back to Figure 1, sealed together at ends 205, 207.
  • First profile 202 includes first interlocking element 206 and first flange 210.
  • Second profile 204 includes second interlocking element 208 and second flange 212.
  • First and second flanges 210, 212 are sealed, glue or otherwise secured to the upper exterior of front and rear walls 102, 104, respectively.
  • zipper assembly 200 includes slider 214 mounted on first and second profiles 202, 204.
  • Slider 214 operates in a conventional manner of interlocking first and second interlocking elements 206, 208 with each other when moved in a first direction and separating first and second interlocking elements 206, 208 when moved in a second direction.
  • first and second interlocking elements 206, 208 may have a "press-to-close" configuration in which no slider is required.
  • this design is susceptible to contents within package or bag 100 traveling up the center of the package or bag 100, between the first and second flanges 210, 212 and out the gussets 106, 108.
  • This leakage or spillage is illustrated for the first gusset 106 but is equally applicable to the second gusset 108.
  • this leakage or spillage can be prevented or minimized by placing a smear of glue or adhesive 400, 402 in the gussets 106, 108 in the corner areas 300, 302.
  • These smears can be on both the internal and external sides of gusset walls 106a, 106b, 108a and 108b so that gusset wall 106a is glued to the interior of front wall 102 and to gusset wall 106b; gusset wall 106b is further glued to the interior of rear wall 104; gusset wall 108a is glued to the interior of front wall 102 and to gusset wall 108b; and gusset wall 108b is further glued to the interior of rear wall 104.
  • Figure 5 shows, in phantom, glued areas 220, 222 which are formed between first and second profiles 202, 204. Glued areas 220, 222 are formed to block off or gasket-close the space above the front and rear walls 102, 104 and below the first and second interlocking elements 206, 208. This further provides the leak-proof characteristics of the package or bag 100.
  • An alternative configuration to create the desired gasket effect is to apply glue along the top of the gussets 106, 108 or on the gussets 106, 108 and pressing the package or bag 100 so that the glue is urged into the space above the front and rear walls 102, 104 and below the first and second interlocking elements 206, 208.
  • a first alternative embodiment of the present invention shown in Figures
  • a series of glue or adhesive dots 500 (shown in an exaggerated or elongated in the exploded views of Figures 7 and 8) is placed between gusset walls 106a, 106b in corner area 300 and between gusset walls 108a, 108b in corner area 302.
  • glue or adhesive dots 500 shown in an exaggerated or elongated in the exploded views of Figures 7 and 8.
  • glue smear 400' is placed between the external sides of gusset walls 106a, 106b and glue smear 402' is placed between the external sides of gusset walls 108a, 108b.
  • glue smears 400', 402' are intended to glue the respective gusset walls together with minimal, if any, contact with the interior of front and rear walls 102, 104.
  • the resulting package or bag 100 has reduced leakage and can be filled, transported and used in the same way as similar packages or bags.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bag Frames (AREA)

Abstract

L'invention concerne des emballages ou sacs à soufflets refermables présentant une résistance améliorée aux fuites ou aux déversements à travers les soufflets (106, 108) grâce à l'application d'une colle ou d'un adhésif (300, 302, 400, 402) dans les soufflets, dans les zones à proximité de la fermeture à glissière refermable (200) du sac. Ceci peut être effectué en enduisant une colle sur l'intérieur et l'extérieur des parois du soufflet (106a, 106b, 108a, 108b) ; en appliquant des points de colle (500) entre les parois orientées vers l'extérieur des soufflets (106, 108) ; ou en enduisant la colle entre les parois orientées vers l'extérieur des soufflets.
PCT/US2008/060989 2007-05-07 2008-04-21 Soufflets de sacs étanches WO2008137295A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11/801,062 2007-05-07
US11/801,062 US20080279484A1 (en) 2007-05-07 2007-05-07 Leak-proofing gussets on multi-wall paper and woven polypropylene packages or bags

Publications (1)

Publication Number Publication Date
WO2008137295A1 true WO2008137295A1 (fr) 2008-11-13

Family

ID=39564627

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2008/060989 WO2008137295A1 (fr) 2007-05-07 2008-04-21 Soufflets de sacs étanches

Country Status (2)

Country Link
US (1) US20080279484A1 (fr)
WO (1) WO2008137295A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014066026A1 (fr) * 2012-10-26 2014-05-01 Illinois Tool Works Inc. Sac à fermeture à glissière à curseur résistant aux fuites
AT15695U1 (de) * 2016-10-14 2018-04-15 Starlinger & Co Gmbh Vorrichtung und Verfahren zum Verschließen eines offenen Endes eines Schlauchkörpers

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080267539A1 (en) * 2007-04-24 2008-10-30 Illinois Tool Works Inc. Sealing gussets together through apertures in multi-wall paper and woven polypropylene packages or bags
US8142077B2 (en) * 2008-04-16 2012-03-27 Graphic Packaging International, Inc. Bag structures and methods of assembling the same
JP7429914B2 (ja) * 2019-06-12 2024-02-09 出光ユニテック株式会社 紙袋および紙袋の製造方法

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202004006856U1 (de) * 2004-04-29 2005-09-08 Bischof + Klein Gmbh & Co. Kg Wiederverschließbares Verpackungsbehältnis

Family Cites Families (16)

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US3023947A (en) * 1955-08-16 1962-03-06 Int Paper Co Multiwall bag
US4904489A (en) * 1988-07-22 1990-02-27 Bach Bert R Package for convection heating of food
US6186663B1 (en) * 1999-08-17 2001-02-13 Illinois Tool Works Inc. Gusseted package with reclosable zipper
US6367976B1 (en) * 2000-06-08 2002-04-09 Bemis Company, Inc. Multi-gusset for pinch closure bag
DE20017182U1 (de) * 2000-10-06 2002-02-14 Bischof und Klein GmbH & Co., 49525 Lengerich Seitenfaltenbeutel aus flexiblen schweißbarem Material
DE20106175U1 (de) * 2001-04-07 2002-08-14 Bischof und Klein GmbH & Co. KG, 49525 Lengerich Seitenfaltenbeutel oder -sack aus flexiblem schweißbarem Material
JP2003054579A (ja) * 2001-08-16 2003-02-26 Showa Packs Kk フィルム内袋入り紙袋
US6533456B1 (en) * 2001-10-01 2003-03-18 Reynolds Consumer Products, Inc. Reclosable stand-up package, and methods
US20040013325A1 (en) * 2002-07-22 2004-01-22 Gavin Cook Bag for flowable materials
US6805485B2 (en) * 2002-10-02 2004-10-19 Illinois Tool Works Inc. Gusseted reclosable package with slider-operated zipper
US7144159B2 (en) * 2003-01-29 2006-12-05 Illinois Tool Works Inc. Gusseted reclosable package with slider-operated zipper
US6807794B2 (en) * 2003-02-11 2004-10-26 Illinois Tool Works Inc. Methods of making a gusset style pouch in a reclosable bag
CN100457562C (zh) * 2003-04-18 2009-02-04 花王株式会社 袋
DE202004006857U1 (de) * 2004-04-29 2005-09-08 Bischof + Klein Gmbh & Co. Kg Seitenfaltenbeutel
US7506487B2 (en) * 2005-09-21 2009-03-24 Zip Pack Ip Ag Method for applying a reclosable seal to a container
US20080267539A1 (en) * 2007-04-24 2008-10-30 Illinois Tool Works Inc. Sealing gussets together through apertures in multi-wall paper and woven polypropylene packages or bags

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202004006856U1 (de) * 2004-04-29 2005-09-08 Bischof + Klein Gmbh & Co. Kg Wiederverschließbares Verpackungsbehältnis

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014066026A1 (fr) * 2012-10-26 2014-05-01 Illinois Tool Works Inc. Sac à fermeture à glissière à curseur résistant aux fuites
US9216845B2 (en) 2012-10-26 2015-12-22 Illinois Tool Works Inc. Leak-resistant slider select zipper
US9750314B2 (en) 2012-10-26 2017-09-05 Illinois Tool Works Inc. Leak-resistant slider select zipper
AT15695U1 (de) * 2016-10-14 2018-04-15 Starlinger & Co Gmbh Vorrichtung und Verfahren zum Verschließen eines offenen Endes eines Schlauchkörpers

Also Published As

Publication number Publication date
US20080279484A1 (en) 2008-11-13

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