CA2381874A1 - Fastener closure arrangement for flexible packages - Google Patents

Fastener closure arrangement for flexible packages Download PDF

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Publication number
CA2381874A1
CA2381874A1 CA002381874A CA2381874A CA2381874A1 CA 2381874 A1 CA2381874 A1 CA 2381874A1 CA 002381874 A CA002381874 A CA 002381874A CA 2381874 A CA2381874 A CA 2381874A CA 2381874 A1 CA2381874 A1 CA 2381874A1
Authority
CA
Canada
Prior art keywords
flexible package
reclosable flexible
fastener tracks
line
slider
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
CA002381874A
Other languages
French (fr)
Other versions
CA2381874C (en
Inventor
Panagiotis Kinigakis
Orestes Rivero
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Intercontinental Great Brands LLC
Original Assignee
Kraft Foods Holdings 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 Kraft Foods Holdings Inc filed Critical Kraft Foods Holdings Inc
Publication of CA2381874A1 publication Critical patent/CA2381874A1/en
Application granted granted Critical
Publication of CA2381874C publication Critical patent/CA2381874C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • B65D33/18—End- or aperture-closing arrangements or devices using adhesive applied to integral parts, e.g. to flaps
    • B65D33/20—End- or aperture-closing arrangements or devices using adhesive applied to integral parts, e.g. to flaps using pressure-sensitive adhesive
    • 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

Abstract

A flexible package is provided with a shrouded slider fastener closure. A side seal forming the package is enlarged at its upper end to provide a smooth transition of product dispensed from the package, and to shield the slider during dispensing. The enlarged side seal portion is spaced from the fastener tracks. The fastener tracks are deformed to provide a stop, spaced from the side seals, to limit slider movement. A stop of reduced area, enlarging the package opening, is made possible.

Claims (27)

1. A reclosable flexible package comprising:
opposed front and rear panels having sides and joined together to form an interior and a package opening communicating with said interior;
first and second interlockable fastener tracks configurable in an interlocked, closed position and an unlocked open position;
a slider movable along said fastener tracks to configure said tracks in said interlocked position so as to close said opening and to configure said fastener tracks in said unlocked position so as to allow access through said opening to said package interior;
said fastener tracks having opposed ends located adjacent said opposed sides of said front and said rear panels;
stops adjacent said ends of said fastener tracks to interfere with and prevent travel of said slider beyond said fastener tracks;
a side seal of pre-selected width joining together one side of said front and said rear panels;
a shroud covering said slider and at least the major portion of said fastener tracks; and weakening portions extending adjacent said fastener tracks for severing of said shroud in preparation for removal of said shroud from the remainder of said reclosable flexible package.
2. The reclosable flexible package of claim 1 wherein said shroud covers the substantial entirety of said fastener tracks and said slider.
3. The reclosable flexible package of claim 2 wherein said shroud defines openings for said slider.
4. The reclosable flexible package of claim 1 wherein said weakening portion includes a line of weakness extending along at least the portion of said fastener tracks.
5. The reclosable flexible package of claim 4 wherein said line of weakness extends along the substantial entirety of said fastener tracks.
6. The reclosable flexible package of claim 4 wherein said line of weakness extends across substantially the entire extent of said reclosable flexible package.
7. The reclosable flexible package of claim 1 wherein said weakening portion includes a notch formed in one side of said reclosable flexible package to initiate tearing of said reclosable flexible package.
8. The reclosable flexible package of claim 7 further comprising a line of weakness extending along said fastener tracks, cooperating with said notch to tear said reclosable flexible package, allowing said shroud to be removed from the remainder of said reclosable flexible package.
9. The reclosable flexible package of claim 8 further comprising an angled weakening line between said notch and said line of weakness.
10. The reclosable flexible package of claim 9 wherein the said angled severing line crosses said fastener tracks.
11. The reclosable flexible package of claim wherein the said line is a generally straight line.
12. The reclosable flexible package of claim wherein said angled line includes a curved line portion.
13. The reclosable flexible package of claim 1 wherein said shroud defines an opening through which said slider protrudes, said opening connecting said angled severing line and said line of weakness.
14. The reclosable flexible package of claim 1 wherein said shroud includes an upper portion comprising a fin seal.
15. The reclosable flexible package of claim 14 wherein said shroud further includes a side fin seal above said fastener tracks, in line with the side seal trunning said front and said rear panels.
16. The reclosable flexible package of claim 1 wherein said shroud is integrally formed with said front and said rear panels, comprising monolithic portions of said front and said rear panels.
17. The reclosable flexible package of claim 1 wherein said shroud includes shroud panels separately formed and joined to said front and said rear panels.
18. The reclosable flexible package of claim 1 wherein said side seal having an enlarged end portion of enlarged width adjacent said fastener tracks, with at least a part of said enlarged end portion disposed below said fastener tracks; and wherein said enlarged end portion is disposed beneath the substantial entirety of said slider and shields said slider, deflecting product being discharged from said package interior, around said slider.
19. The reclosable flexible package of claim 2 further comprising a peelable seal preventing communication of said opening with said package interior.
20. The reclosable flexible package of claim 1 wherein said peelable seal comprises an hermetic seal.
21. The reclosable flexible package of claim 1 wherein said stops comprise deformed end portions of said fastener track.
22. The reclosable flexible package of claim 21 wherein said fastener track end portions are softened with application of ultrasonically generated heat and deformed under pressure.
23. The reclosable flexible package of claim 22 wherein the bottoms of said fastener cracks are preserved undeformed.
24. The reclosable flexible package of claim 1 further comprising flanges extending from said fastener tracks and joined to said front and said rear panels.
25. The reclosable flexible package of claim 24 further comprising a sealing band between said fastener tracks and said peelable seal joining said flanges to said front and said rear panels.
26. The reclosable flexible package of claim 1 wherein said fastener tracks have a bottom portion engaging said slider 27a so as to prevent disengagement of said slider from said fastener tracks.
27. The reclosable flexible package of claim 1 wherein both of said side seals have a pre-selected width and an enlarged end portion of enlarged width adjacent said fastener tracks, with at least a part of said enlarged end portion disposed below and spaced from said fastener tracks.
CA2381874A 2001-04-18 2002-04-17 Fastener closure arrangement for flexible packages Expired - Fee Related CA2381874C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/837,694 US6616333B2 (en) 2000-09-22 2001-04-18 Fastener closure arrangement for flexible packages
US09/837,694 2001-04-18

Publications (2)

Publication Number Publication Date
CA2381874A1 true CA2381874A1 (en) 2002-10-18
CA2381874C CA2381874C (en) 2010-07-06

Family

ID=25275154

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2381874A Expired - Fee Related CA2381874C (en) 2001-04-18 2002-04-17 Fastener closure arrangement for flexible packages

Country Status (8)

Country Link
US (2) US6616333B2 (en)
EP (1) EP1251075B1 (en)
AT (1) ATE330860T1 (en)
AU (1) AU782074B2 (en)
CA (1) CA2381874C (en)
DE (1) DE60212489T2 (en)
DK (1) DK1251075T3 (en)
ES (1) ES2262758T3 (en)

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EP1251075A2 (en) 2002-10-23
US6974256B2 (en) 2005-12-13
ATE330860T1 (en) 2006-07-15
US20020154836A1 (en) 2002-10-24
AU782074B2 (en) 2005-06-30
AU3437402A (en) 2003-10-23
US20020037115A1 (en) 2002-03-28
US6616333B2 (en) 2003-09-09
ES2262758T3 (en) 2006-12-01
DE60212489T2 (en) 2006-11-23
EP1251075A3 (en) 2003-02-05
CA2381874C (en) 2010-07-06

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