WO2002034634A1 - Reclosable plastic bags - Google Patents
Reclosable plastic bags Download PDFInfo
- Publication number
- WO2002034634A1 WO2002034634A1 PCT/AU2001/000670 AU0100670W WO0234634A1 WO 2002034634 A1 WO2002034634 A1 WO 2002034634A1 AU 0100670 W AU0100670 W AU 0100670W WO 0234634 A1 WO0234634 A1 WO 0234634A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- bag
- panels
- closure
- rib
- ribs
- Prior art date
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
- B65D33/2541—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 characterised by the slide fastener, e.g. adapted to interlock with a sheet between the interlocking members having sections of particular shape
- B65D33/255—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 characterised by the slide fastener, e.g. adapted to interlock with a sheet between the interlocking members having sections of particular shape being provided with special visual, audible or tactile indicating means, e.g. indicating proper engagement
-
- 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
- B65D33/007—Details of, or accessories for, sacks or bags for facilitating the separation of the two walls, e.g. walls of inequal height, tabs; for maintaining the mouth of the sack or bag open
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T24/00—Buckles, buttons, clasps, etc.
- Y10T24/15—Bag fasteners
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T24/00—Buckles, buttons, clasps, etc.
- Y10T24/45—Separable-fastener or required component thereof [e.g., projection and cavity to complete interlock]
- Y10T24/45152—Each mating member having similarly shaped, sized, and operated interlocking or intermeshable face
- Y10T24/45157—Zipper-type [e.g., slider]
- Y10T24/45168—Zipper-type [e.g., slider] for container [e.g., bag]
Definitions
- This invention relates to reclosable plastic bags, that is, plastic bags which can be repeatedly opened and closed to receive or retrieve contents, and sometimes known as "zipper" bags.
- Such bags conventionally are of rectangular configuration formed from an elongate plastic sheet or film folded upon itself to form two panels and sealed together along their opposite side edges with an opening defined by the free edges of the panels.
- the opening is adapted to be repeatedly opened and closed by closure/sealing means formed from a rib extending across one of the panels below the opening of the bag and inter-engaging in a groove formed between, and therefore defined by, two ribs extending across the other panel and also below the opening of the bag.
- Two parallel extending ribs on either sides of the rib which engages within the groove serve to capture the ribs within the defined groove.
- the ribs and grooves are shaped and dimensioned so that the rib fits tightly within its associated groove and the ribs defining the associated groove deform to allow the rib to enter and to be captured within its associated groove.
- the bag is opened by gripping the free edges of the panel at the opening of the bag and pulling the panels apart with the rib disengaging from its associated groove thereby allowing access to the interior of the bag to receive or retrieve contents .
- To close or reseal the opening to the bag one end of the rib is pressed by thumb and finger pressure into the adjacent end of the associated groove with the thumb or finger under pressure being subsequently drawn along the length of the rib and groove arrangement to progressively introduce the rib into its associated groove to be tightly received therein and whereby to seal the opening of the bag
- the opening of the bag can be repeatedly opened and closed as required, with the closure process being analogous to that accomplished by a zipper and thus the term "zipper” is sometimes used to describe such reclosable bags .
- the portions of the two panels adjacent there free edges, and above the rib/groove closure means have a plurality of parallel shallow ribs formed across the opening, usually on the inside of the panels, to allow secure finger gripping when those portions of the panels are gripped to pull the panels apart and disengage the closure means when opening the bag.
- Reclosable bags which are extruded through a die head have an area of weakness below the closure, that is, the bags are flimsy due to the thickness of the plastic sheet or film used to form the bag, and the plastic panels split or break below and/or above the closure if it is too tight and/or the user applies and/or maintains undue force when opening the bag, that is, the user is aggressive. But on the other hand for security, water tightness, and air tightness, a tight closure is required.
- the flimsy nature of the extruded closures makes them harder to engage and seal when closing.
- the filmsy nature of the material also makes it harder to control closure quality during production.
- the present invention therefore envisages a reclosable plastic bag having at least two panels of plastics sheet or film joined to, or integral with, each other, or a combination of both, to define a bag with an opening, a closure/sealing means of one or more inter- engagable elongate rib/groove configurations to close said opening, wherein at least one elongate strengthening rib is provided adjacent, and parallel, to said closure means and on one or each of the panels of the bag and also inwardly and/or outwardly of said closure means.
- the closure means, the strengthening ribs, and any grip enhancing ribs can also be formed by the simpler extrusion manufacturing process, whilst the strengthening ribs minimise, or eliminate, the problems with conventional extruded closures.
- the strengthening ribs bears some of the forces applied to the closure means and thus minimise the possibility of splitting or breaking of the bag material inwardly and/or outwardly of the closure means, whilst the stre gthen ng ribs also stiffen the panels of the bag adjacent the closure means to provide additional rigidity to assist in aligning the inter- engaging rib/groove configurations when closing the bag.
- the closure also enables the closure to be tighter for leak proofing, securityf li *i ⁇ l and air tightness.
- strengthening ribs may be provided both inwardly and outwardly of the closure means.
- the ribs may consist of one wide rib.
- the ribs may be provided on the inside or outside of the bag and on one or both panels .
- a plurality of shallow ribs are also provided on said panels extending parallel to said closure means and outwardly thereof to assist in gripping said panels when opening said bag.
- the shallow ribs may be provided on the insides and/or outside one or both panels.
- the rib/groove configurations of the closure means have a plurality of projections thereon spaced apart along their length whereby during progressive engagement of the rib within its associated groove a series of audible and/or tactile signals will be provided signifying progressive closure of the closure means.
- Figure 1 is a side view of the reclosable plastic bag in accordance with this preferred embodiment of the invention.
- Figure 2 is a broken enlarged cross-sectional view of the embodiment of Figure 1.
- the invention consists of a reclosable plastic bag, generally indicated as 10.
- the plastic bag is formed from an extruded tube of plastic sheet or film which when flattened produces a fold line 11 which will define the bottom of the bag, and which therefore produces a pair of panels 15 which are thereafter sealed along their opposite side edges 12 to provide a plastic bag having an opening 13 at the top of the bag when the other side of the tube is slit.
- the opening 13 is adapted to be repeatedly opened and closed by a conventional extruded closure/sealing means 14 of the type described above, and consisting of a rib 14a extending across the width of one panel at the opening of the bag and below the opening of the bag, and also engaging and captured within a groove 14b defined by a pair of ribs 14c extending across the width of the other panel of the bag at its opening.
- a pair of ribs on either side of the rib 14a, which engages within the groove 14b, serves to also capture the ribs 14c which define the grooves.
- Portions 16 at the top of the panels 15, and adjacent the free ends of the panels of the bag above the closure/sealing means 14 have parallel extending shallow ribs 17, also formed by extrusion, on their insides to allow secure gripping of the panels when those portions of the panels are gripped to pull the panels apart and to disengage the rib/groove closure means 14 when opening the bag.
- a plurality, in this preferred embodiment two, parallel strengthening ribs 18 are also extruded along both sides of the closure/sealing means 1 , to in effect bear some of the forces applied to the closure means 14 and thus minimise the possibility of splitting or breaking of the bag inwardly and/or outwardly of the closure means, whilst at the same time strengthening the panels of the bag adjacent the closure means to provide additional rigidity to assist in aligning the intergaging rib/groove closure configuration when closing the bag.
- the ribs 14a of the closure means 14 have a plurality of projections 19 provided an ⁇ 3- spaced apart along its length whereby, when progressively engaging the rib with its associated groove a series of audible and/or tactile signals will be produced signifying progressive closure of the closure means .
- the closure/sealing means 14, the shallow ribs 17, and the strengthening ribs 18, are all extruded when the tube from which the bag will be formed is extruded and before the tube is slit.
- the strengthening ribs 18 may be formed by altering the profile of the extrusion die, or by injecting plastics material directly onto the surface of the tube as it is being extruded, or by a forming process through a grooved die head also when the tube for the bag is being extruded. The more manufacturing and material costly laminating process could also be used if necessary.
Abstract
Description
Claims
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA2434400A CA2434400C (en) | 2000-10-27 | 2001-06-06 | Reclosable plastic bags |
AU7373101A AU7373101A (en) | 2000-10-27 | 2001-06-06 | Reclosable plastic bags |
AU2001273731A AU2001273731B2 (en) | 2000-10-27 | 2001-06-06 | Reclosable plastic bags |
JP2002537637A JP4109107B2 (en) | 2000-10-27 | 2001-06-06 | Plastic bag that can be closed repeatedly |
US10/415,070 US7651271B2 (en) | 2000-10-27 | 2001-06-06 | Reclosable plastic bags |
NZ525410A NZ525410A (en) | 2000-10-27 | 2001-06-06 | Reclosable plastic bags |
EP01940014A EP1334038A4 (en) | 2000-10-27 | 2001-06-06 | Reclosable plastic bags |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AUPR1056 | 2000-10-27 | ||
AUPR1056A AUPR105600A0 (en) | 2000-10-27 | 2000-10-27 | Reclosable plastic bags |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2002034634A1 true WO2002034634A1 (en) | 2002-05-02 |
Family
ID=3825100
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/AU2001/000670 WO2002034634A1 (en) | 2000-10-27 | 2001-06-06 | Reclosable plastic bags |
Country Status (11)
Country | Link |
---|---|
US (1) | US7651271B2 (en) |
EP (2) | EP1334038A4 (en) |
JP (1) | JP4109107B2 (en) |
CN (1) | CN1217828C (en) |
AT (1) | ATE474784T1 (en) |
AU (1) | AUPR105600A0 (en) |
CA (1) | CA2434400C (en) |
DE (1) | DE60142652D1 (en) |
ES (1) | ES2348998T3 (en) |
NZ (1) | NZ525410A (en) |
WO (1) | WO2002034634A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6994535B2 (en) | 2002-06-27 | 2006-02-07 | S.C. Johnson Home Storage, Inc. | Method and apparatus for forming a guide rib on a section of plastic film |
US11691790B2 (en) | 2019-01-18 | 2023-07-04 | S.C. Johnson & Son, Inc. | Storage bag with improved gripping features |
Families Citing this family (47)
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EP1489019A4 (en) * | 2002-03-27 | 2009-06-03 | Idemitsu Unitech Co Ltd | Sealing bag with chuck |
US20060008185A1 (en) * | 2004-04-26 | 2006-01-12 | Borchardt Michael G | Fastening strips with barbed closure elements |
US7543361B2 (en) * | 2004-04-26 | 2009-06-09 | The Glad Products Company | Closure device providing visual confirmation of occlusion |
US7611284B2 (en) * | 2004-04-26 | 2009-11-03 | The Glad Products Company | Closure device |
US7260871B2 (en) * | 2004-04-26 | 2007-08-28 | The Clorox Company | Ventable interlocking closure strip |
US20060177161A1 (en) * | 2005-01-31 | 2006-08-10 | Turvey Robert R | Pouch having at least one pleat |
US20060168775A1 (en) * | 2005-01-31 | 2006-08-03 | Turvey Robert R | Closure mechanism including closure profiles having a hollow core |
US7340807B2 (en) * | 2005-01-31 | 2008-03-11 | S.C. Johnson Home Storage | Pouch and resealable closure mechanism therefor including a plurality of interlocking closure elements |
US20060168777A1 (en) * | 2005-01-31 | 2006-08-03 | Turvey Robert R | Slider for a reclosable pouch |
US7585111B2 (en) | 2005-01-31 | 2009-09-08 | S.C. Johnson Home Storage, Inc. | Reclosable pouch and closure element therefor having interlocking closure profiles |
US7316052B2 (en) * | 2005-01-31 | 2008-01-08 | S.C. Johnson Home Storage, Inc. | Closure profile and die plate for extruding same |
US20070206888A1 (en) * | 2006-03-06 | 2007-09-06 | Chia-Hsiang Chang | Multi-pocket specimen bag incorporating easy tear lines for removal of pre-sealed inserts |
US7699185B2 (en) * | 2006-03-08 | 2010-04-20 | Heien Troy A | Multi-compartment trash or recycling bag |
US20080002919A1 (en) * | 2006-06-29 | 2008-01-03 | Dais Brian C | Resealable closure mechanism |
JP4893149B2 (en) * | 2006-08-10 | 2012-03-07 | 大日本印刷株式会社 | Package with zipper having opening retaining function and opening assist function |
JP5118080B2 (en) | 2009-02-06 | 2013-01-16 | 出光ユニテック株式会社 | Easy tear zipper tape and packaging bag with easy tear zipper tape |
US20110044566A1 (en) * | 2009-02-20 | 2011-02-24 | The Glad Products Company | Bag |
JP5595026B2 (en) * | 2009-12-11 | 2014-09-24 | 出光ユニテック株式会社 | Zipper tape and packaging bag with zipper tape |
US8550716B2 (en) | 2010-06-22 | 2013-10-08 | S.C. Johnson & Son, Inc. | Tactile enhancement mechanism for a closure mechanism |
US8469592B2 (en) * | 2010-06-22 | 2013-06-25 | S.C. Johnson & Son, Inc. | Tactile enhancement mechanism for a closure mechanism |
US8926179B2 (en) | 2010-07-27 | 2015-01-06 | S.C. Johnson & Son, Inc. | Closure mechanism with multiple frequency feedback |
US9327875B2 (en) * | 2010-10-29 | 2016-05-03 | S.C. Johnson & Son, Inc. | Reclosable bag having a loud sound during closing |
US11180286B2 (en) | 2010-10-29 | 2021-11-23 | S. C. Johnson & Son, Inc. | Reclosable bag having a loud sound during closing |
US8974118B2 (en) | 2010-10-29 | 2015-03-10 | S.C. Johnson & Son, Inc. | Reclosable bag having a sound producing zipper |
US8568031B2 (en) | 2011-02-22 | 2013-10-29 | S.C. Johnson & Son, Inc. | Clicking closure device for a reclosable pouch |
US8469593B2 (en) | 2011-02-22 | 2013-06-25 | S.C. Johnson & Son, Inc. | Reclosable bag having a press-to-vent zipper |
US9114914B2 (en) | 2012-09-28 | 2015-08-25 | S.C. Johnson & Son, Inc. | Storage bag with textured area on lips to facilitate closing process |
US8727620B2 (en) | 2012-09-28 | 2014-05-20 | S.C. Johnson & Son, Inc. | Storage bag with dimple features |
US9604761B2 (en) | 2012-09-28 | 2017-03-28 | S. C. Johnson & Son, Inc. | Storage bag with features that facilitate sealing and unsealing of the bag |
US11634253B2 (en) | 2012-09-28 | 2023-04-25 | S. C. Johnson & Son, Inc. | Storage bag with colored lips |
US11104487B2 (en) * | 2012-11-26 | 2021-08-31 | Illinois Tool Works Inc. | Audible cut and crush zipper |
USD723936S1 (en) | 2013-03-15 | 2015-03-10 | S.C. Johnson & Son, Inc. | Storage bag |
USD724955S1 (en) | 2013-03-15 | 2015-03-24 | S.C. Johnson & Son, Inc. | Storage bag |
USD742247S1 (en) | 2013-03-15 | 2015-11-03 | S.C. Johnson & Son, Inc. | Storage bag |
USD724442S1 (en) | 2013-03-15 | 2015-03-17 | S.C. Johnson & Son, Inc. | Storage bag |
USD943422S1 (en) | 2013-03-15 | 2022-02-15 | S.C. Johnson & Son, Inc. | Storage bag |
USD723384S1 (en) | 2013-03-15 | 2015-03-03 | S.C. Johnson & Son, Inc. | Storage bag |
USD723386S1 (en) | 2013-03-15 | 2015-03-03 | S.C. Johnson & Son, Inc. | Storage bag |
US9156593B2 (en) | 2013-03-15 | 2015-10-13 | Reynolds Presto Products Inc. | Closure arrangements for recloseable pouches; recloseable pouches; and, methods |
USD723939S1 (en) | 2013-03-15 | 2015-03-10 | S.C. Johnson & Son, Inc. | Storage bag |
USD723940S1 (en) | 2013-03-15 | 2015-03-10 | S.C. Johnson & Son, Inc. | Storage bag |
USD723937S1 (en) | 2013-03-15 | 2015-03-10 | S.C. Johnson & Son, Inc. | Storage bag |
TWI620692B (en) * | 2013-08-30 | 2018-04-11 | 金百利克拉克國際公司 | Tamper resistant package and methods of making same |
US9623613B2 (en) * | 2014-03-14 | 2017-04-18 | Chih-Hung Chen | Plastic bags |
US20170158380A1 (en) * | 2015-12-02 | 2017-06-08 | Poly-America, L.P. | Reclosable bag and method to make same |
US10093458B2 (en) * | 2016-03-03 | 2018-10-09 | Henkel IP & Holding GmbH | Resealable child-deterrent bag |
US11319115B2 (en) * | 2020-03-31 | 2022-05-03 | Universal Trim Supply Co., Ltd. | Sealing bag and related sealing system |
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US5138750A (en) * | 1991-05-13 | 1992-08-18 | Dowbrands L.P. | Zipper for reclosable thermoplastic bag |
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-
2000
- 2000-10-27 AU AUPR1056A patent/AUPR105600A0/en not_active Abandoned
-
2001
- 2001-06-06 JP JP2002537637A patent/JP4109107B2/en not_active Expired - Lifetime
- 2001-06-06 DE DE60142652T patent/DE60142652D1/en not_active Expired - Lifetime
- 2001-06-06 AT AT07018185T patent/ATE474784T1/en not_active IP Right Cessation
- 2001-06-06 CN CN018212891A patent/CN1217828C/en not_active Expired - Lifetime
- 2001-06-06 ES ES07018185T patent/ES2348998T3/en not_active Expired - Lifetime
- 2001-06-06 EP EP01940014A patent/EP1334038A4/en not_active Ceased
- 2001-06-06 EP EP07018185A patent/EP1884477B1/en not_active Expired - Lifetime
- 2001-06-06 NZ NZ525410A patent/NZ525410A/en not_active IP Right Cessation
- 2001-06-06 WO PCT/AU2001/000670 patent/WO2002034634A1/en not_active Application Discontinuation
- 2001-06-06 US US10/415,070 patent/US7651271B2/en not_active Expired - Fee Related
- 2001-06-06 CA CA2434400A patent/CA2434400C/en not_active Expired - Lifetime
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US3974958A (en) * | 1974-10-09 | 1976-08-17 | Bagcraft Corporation Of America | Header bag |
US5138750A (en) * | 1991-05-13 | 1992-08-18 | Dowbrands L.P. | Zipper for reclosable thermoplastic bag |
JP2000309352A (en) * | 1999-04-28 | 2000-11-07 | Seisan Nipponsha:Kk | Bag made of synthetic resin |
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Title |
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DATABASE WPI Week 200106, Derwent World Patents Index; Class Q32, AN 2001-046445, XP002967446 * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6994535B2 (en) | 2002-06-27 | 2006-02-07 | S.C. Johnson Home Storage, Inc. | Method and apparatus for forming a guide rib on a section of plastic film |
US11691790B2 (en) | 2019-01-18 | 2023-07-04 | S.C. Johnson & Son, Inc. | Storage bag with improved gripping features |
Also Published As
Publication number | Publication date |
---|---|
ES2348998T3 (en) | 2010-12-21 |
EP1884477B1 (en) | 2010-07-21 |
DE60142652D1 (en) | 2010-09-02 |
ATE474784T1 (en) | 2010-08-15 |
EP1334038A4 (en) | 2005-02-16 |
US20040013323A1 (en) | 2004-01-22 |
NZ525410A (en) | 2003-08-29 |
CN1482983A (en) | 2004-03-17 |
CA2434400A1 (en) | 2002-05-02 |
US7651271B2 (en) | 2010-01-26 |
JP4109107B2 (en) | 2008-07-02 |
EP1884477A1 (en) | 2008-02-06 |
EP1334038A1 (en) | 2003-08-13 |
AUPR105600A0 (en) | 2000-11-23 |
CN1217828C (en) | 2005-09-07 |
JP2004511401A (en) | 2004-04-15 |
CA2434400C (en) | 2010-12-21 |
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