US20030235352A1 - Transverse direction zipper tape - Google Patents
Transverse direction zipper tape Download PDFInfo
- Publication number
- US20030235352A1 US20030235352A1 US10/178,127 US17812702A US2003235352A1 US 20030235352 A1 US20030235352 A1 US 20030235352A1 US 17812702 A US17812702 A US 17812702A US 2003235352 A1 US2003235352 A1 US 2003235352A1
- Authority
- US
- United States
- Prior art keywords
- zipper tape
- weakness
- sealed
- line
- reclosable container
- 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.)
- Abandoned
Links
- 239000000463 material Substances 0.000 claims abstract description 6
- 239000003351 stiffener Substances 0.000 claims description 2
- 239000004033 plastic Substances 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 230000003014 reinforcing effect Effects 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
Images
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
- B65D33/2516—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 comprising tamper-indicating means, e.g. located within the fastener
- B65D33/2533—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 comprising tamper-indicating means, e.g. located within the fastener the slide fastener being located between the product compartment and the tamper indicating means
Definitions
- FIG. 1 is a perspective view of the perforated cap and related structure of the present invention.
- Zipper 12 includes male interlocking profile 14 and female interlocking profile 16 .
- Zipper tape 18 is secured to both male and female interlocking profiles 14 , 16 thereby forming extended tack flange 20 below female interlocking profile 16 , extended tack flange 21 below male interlocking profile 14 , and loop 22 between interlocking profiles 14 , 16 .
- Loop 22 of zipper tape 18 further includes interior reinforcing layer 24 thereby forming a “cap structure”.
- the upper interior apex of loop 22 further typically includes stiffener 26 therewithin.
- a first line of perforation 28 (or a similarly weakened area) is formed through zipper tape 18 between the apex of loop 22 and male interlocking profile 14 .
Abstract
The reclosable container or bag (100) includes a zipper tape (18) with interlocking profiles (14, 16) of a zipper (12). First and second lines of perforation (28, 30) are formed parallel to and between the interlocking profiles (14, 16). Furthermore, the zipper tape (18) is looped so as to align the first and second lines of perforation (28, 30) with each other thereby forming a perforated cap structure (10). An additional layer of material (24) is formed to cover the first and second lines of perforation (28, 30) to maintain a hermetic seal prior to tearing of the first and second lines of perforation (28, 30). Typically, a notch (120, 122) is formed in at least one of the crush areas (116, 118) on the end of the zipper tape (18) to direct the user's tearing force to the lines of perforation (28, 30) thereby providing access to the zipper (12) and providing subsequent evidence of prior opening of reclosable container or bag (100).
Description
- 1. Field of the Invention
- The present invention relates to a transverse direction zipper tape for a reclosable container, such as a plastic bag. More specifically, the present invention relates to the attachment of a perforated cap zipper tape to a web in a transverse direction.
- 2. Description of the Prior Art
- In the prior art, tamper-evident, hermetic reclosable containers, such as plastic bags, are known. Typical examples of this prior art are U.S. Pat. No. 5,023,122 entitled “Easy Open Bag Structure” issued to Boeckmann et al. on Jun. 11, 1991 and U.S. Pat. No. 5,100,246 entitled “Pull Bead and Guide Rails for Easy Open Flexible Containers” issued to La Pierre et al. on Mar. 31, 1992. While this art is well-developed, improvements in various aspects are sought.
- The present invention is a method and apparatus relating to a reclosable container, such as a plastic bag, with a segment of perforated cap zipper tape applied to the web in a transverse direction. This provides a hermetic, tamper-evident, easy opening package, even for polyethylene packages that would normally require the consumer to use scissors to open the package. The cap or base is typically made from a material that will keep the inner flanges from sealing together from the main seal but still allow the zipper segment end seals to fuse together. Alternatively, the thickness of the cap or base can be used to provide enough insulation from the main seal.
- More particularly, the perforated cap zipper tape provides a loop between the flanges of two zipper profiles and perforations are provided within the loop, so that the loop, which forms a header, can be removed from the package to provide access to the package and to provide evidence of prior opening.
- Further objects and advantages of the invention will become apparent from the following description and claims, and from the accompanying drawings, wherein:
- FIG. 1 is a perspective view of the perforated cap and related structure of the present invention.
- FIG. 2 is a plan view of the formed bag of the present invention.
- FIG. 3 is a plan view of a first embodiment of the end seals of the formed bag of the present invention.
- FIG. 4 is a plan view of a second embodiment of the end seals of the formed bag of the present invention.
- FIG. 5 is a plan view of a third embodiment of the end seals of the formed bag of the present invention.
- Referring now to the drawings in detail wherein like numerals refer to like elements throughout the several views, one sees that FIG. 1 is a perspective view of perforated
cap structure 10 of the present invention. - Zipper12 includes
male interlocking profile 14 andfemale interlocking profile 16.Zipper tape 18 is secured to both male andfemale interlocking profiles tack flange 20 belowfemale interlocking profile 16, extendedtack flange 21 belowmale interlocking profile 14, and loop 22 betweeninterlocking profiles Loop 22 ofzipper tape 18 further includesinterior reinforcing layer 24 thereby forming a “cap structure”. The upper interior apex ofloop 22 further typically includesstiffener 26 therewithin. Moreover, a first line of perforation 28 (or a similarly weakened area) is formed throughzipper tape 18 between the apex ofloop 22 andmale interlocking profile 14. Similarly, a second line of perforation 30 (or a similarly weakened area) is formed throughzipper tape 18 and between the apex ofloop 22 andfemale interlocking portion 16. In order to maintain a hermetic seal prior to the tearing of first and second lines ofperforation internal reinforcing layer 24 is not perforated. However, first and second lines ofperforation internal reinforcing layer 24 if the hermetic quality of the package is not necessary. As illustrated in FIG. 1, first and second lines ofperforation header 32 ofloop 28 to be removed. When perforatedcap structure 10 is sealed to a web to form a reclosable container as shown in FIG. 2, this structure allowsheader 32 to be removed to provide access tozipper 12 and the contents of the reclosable container while further providing evidence of prior opening, or tamper evidence. - FIG. 2 is a plan view of a typical reclosable container or
bag 100 formed with perforatedcap structure 10. Reclosable container orbag 100 includes front and rear panels 102, 104 (shown overlapping) of film with abottom seal 106,side seals seals bag 100. However, it is specifically envisioned that reclosable container orbag 100 is formed by placingzipper tape 18 in a transverse direction along a film in a form fill and seal operation. -
Main seal 112 is formed between front panel 102 and a first side ofzipper tape 18 and is likewise formed between rear panel 104 and a second side ofzipper tape 18. Thezipper tape 18 can be made from a material that will keep the inner portions of the first and second sides ofzipper tape 18 from sealing together during the formation of themain seal 112 but still allow the zipper segment end seals proximate toside seals zipper tape 18 orcap 24 can be chosen to provide enough insulation frommain seal 112 to prevent the inner portions of the first and second sides ofzipper tape 18 from sealing to each other while similarly providing sufficient additional heat and pressure to form the zipper segment end seals. - An additional envisioned embodiment of
bag 100 would include a seal or fold alongtop 111 and further include lines of perforation along front and rear panels 102, 104 downwardly adjacent fromtop 111. - Additionally, as shown in FIGS. 2 and 3, the lateral ends of
zipper tape 18 have wideflat crush areas side seals crush areas zipper tape 18 are sealed together.Notches crush areas perforation 28, 30 (first and second lines ofperforation semi-circular notch 126 inwardly adjacent fromside seal 108 and downwardly adjacent fromtop 111 ofbag 100. This removal is typically done to the front and rear panels 102, 104 prior to the attachment ofzipper tape 18 in order to avoid damage to thezipper tape 18. The lower portion ofsemi-circular notch 126 is generally aligned withnotch 120 and first and second lines ofperforation crush area 116 above notch 126 (that is,header 32 ofloop 28 as shown in FIG. 1) and to easily tear along first and second lines ofperforation main seal 112 in order to provide access tozipper 12. Upon openingzipper 12, the user has access to the contents of reclosable package orbag 100. This embodiment further requireszipper 12 to be segmented from the remaining supply of zipper by cutting in the middle of a large crush area to form the zipper segment and create the twoseparate crush areas - FIG. 4 shows a second embodiment of the end seals of
zipper tape 18. In this embodiment,crush areas crush areas zipper tape 18. This embodiment similarly requireszipper 12 to be segmented between thecrush areas - FIG. 5 shows a third embodiment of the end seals of
zipper tape 18. In this embodiment, thecrush areas seal ends - 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 (20)
1. A reclosable container including:
a first film panel and a second film panel with at least some edges thereof joined together;
a zipper tape with first and second interlocking profile members, said first and second interlocking profile members being separated by a portion of width of said zipper tape, said portion of width of said zipper tape being shaped into a loop thereby allowing said first and second interlocking profile members to engage with each other;
said zipper tape including at least one line of weakness spaced between and parallel to said first and second interlocking profile members;
said zipper tape including an additional layer covering one side of said at least one line of weakness thereby providing a seal to prevent passage of matter through said at least one line of weakness prior to tearing of said at least one line of weakness;
said zipper tape being sealed to an interior of said first and second film panels inwardly adjacent from one edge where said first and second film panels are joined together, whereby tearing said at least one line of weakness provides access to said first and second interlocking profile members, and subsequently provides evidence of access to said first and second interlocking profile members.
2. The reclosable container of claim 1 wherein said zipper tape includes a first end, a second end, a first lateral edge and a second lateral edge, wherein said first interlocking profile is inwardly adjacent from and parallel to said first lateral edge, said second interlocking member is inwardly adjacent from and parallel to said second lateral edge.
3. The reclosable container of claim 2 wherein said first end includes a first crush area wherein a portion of said first side is sealed to a portion of said second side and wherein said second end includes a second crush area wherein a portion of said first side is sealed to a portion of said second side.
4. The reclosable container of claim 2 wherein said first and second crush areas extend to said first end and said second end, respectively.
5. The reclosable container of claim 2 wherein said first and second crush areas are spaced inwardly from said first and second ends, respectively.
6. The reclosable container of claim 2 wherein said first end is sealed wherein a portion of said first side is sealed to a portion of said second side and wherein said second end is sealed wherein a portion of said first side is sealed to a portion of said second side.
7. The reclosable container of claim 3 wherein said first and second crush areas include notches aligned with said at least one line of weakness.
8. The reclosable container of claim 7 wherein said at least one line of weakness includes two parallel lines of weakness and wherein said portion of width of said zipper tape shaped into a loop aligns said two parallel lines of weakness with each other.
9. The reclosable container of claim 8 wherein said two parallel lines of weakness are two parallel lines of perforation.
10. The reclosable container of claim 9 wherein said loop includes an additional layer of material inwardly from said zipper tape.
11. The reclosable container of claim 10 wherein said zipper tape includes a cylindrical stiffener located inwardly from an apex of said loop.
12. A zipper tape for application in the transverse direction on a web of material, the zipper tape including a web of material with first and second parallel interlocking profile members spaced from each other, at least one line of weakness in said web positioned between said first and second parallel interlocking profile members, and an additional layer covering one side of said at least one line of weakness thereby providing a seal to prevent passage of matter through said at least one line of weakness prior to tearing of said at least one line of weakness.
13. The zipper tape of claim 12 further including a first end, a second end, a first side and a second side, wherein said first interlocking profile is inwardly adjacent from and parallel to said first side, said second interlocking member is inwardly adjacent from and parallel to said second side.
14. The zipper tape of claim 13 wherein said first end includes a first crush area wherein a portion of said first side is sealed to a portion of said second side and wherein said second end includes a second crush area wherein a portion of said first side is sealed to a portion of said second side.
15. The zipper tape of claim 13 wherein said first and second crush areas extend to said first end and said second end, respectively.
16. The zipper tape of claim 13 wherein said first and second crush areas are spaced inwardly from said first and second ends, respectively.
17. The zipper tape of claim 12 wherein said first end is sealed wherein a portion of said first side is sealed to a portion of said second side and wherein said second end is sealed wherein a portion of said first side is sealed to a portion of said second side.
18. The zipper tape of claim 14 wherein said first and second crush areas include notches aligned with said at least one line of weakness.
19. The zipper tape of claim 18 wherein said at least one line of weakness includes two parallel lines of weakness and wherein said zipper tape is looped thereby aligning said two parallel lines of weakness with each other.
20. The reclosable container of claim 19 wherein said two parallel lines of weakness are two parallel lines of perforation.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/178,127 US20030235352A1 (en) | 2002-06-24 | 2002-06-24 | Transverse direction zipper tape |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/178,127 US20030235352A1 (en) | 2002-06-24 | 2002-06-24 | Transverse direction zipper tape |
Publications (1)
Publication Number | Publication Date |
---|---|
US20030235352A1 true US20030235352A1 (en) | 2003-12-25 |
Family
ID=29734594
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/178,127 Abandoned US20030235352A1 (en) | 2002-06-24 | 2002-06-24 | Transverse direction zipper tape |
Country Status (1)
Country | Link |
---|---|
US (1) | US20030235352A1 (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20040211696A1 (en) * | 2003-04-28 | 2004-10-28 | Underhill Kimberly Kay | Method of merchandising disposable absorbent pants |
US20050063617A1 (en) * | 2003-09-15 | 2005-03-24 | Tilman Paul A. | Reclosable bag having tamper-evident membrane |
US20080118189A1 (en) * | 2004-01-16 | 2008-05-22 | Johnson Joel L | Easy-open shrouded slider-zipper assembly for reclosable bag |
US20080159664A1 (en) * | 2004-07-21 | 2008-07-03 | Lawrence Share | Leakproof zipper end crush for reclosable bag |
US20100074562A1 (en) * | 2006-09-22 | 2010-03-25 | Yoshinori Nanba | Easily tearable fastener tape, method of producing the fastener tape, packaging bag with easily tearable fastener tape, and device and method for producing the packaging bag |
US20110243481A1 (en) * | 2008-12-09 | 2011-10-06 | Shuichi Goto | Packaging bag with zipper tape, device and method for manufacturing packaging bag, and band-like member for bending |
US20120308166A1 (en) * | 2011-06-06 | 2012-12-06 | Vonco Products, Inc. | Easy open flexible container |
US20150010252A1 (en) * | 2005-10-18 | 2015-01-08 | Innoflex Incorporated | Package having recloseable pour spout |
Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3780781A (en) * | 1971-09-07 | 1973-12-25 | Seisan Nipponsha Kk | Openable bag |
US4437293A (en) * | 1979-08-09 | 1984-03-20 | W. R. Grace & Co., Cryovac Div. | Method and apparatus for making a reclosable package |
US5023122A (en) * | 1988-01-29 | 1991-06-11 | Minigrip, Inc. | Easy open bag structure |
US5092684A (en) * | 1991-03-04 | 1992-03-03 | Illinois Tool Works Inc. | Post-applied zipper base with grip strip |
US5096516A (en) * | 1990-04-09 | 1992-03-17 | Zip-Pak, Incorporated | Method of making dual reuseable pouches |
US5100246A (en) * | 1990-10-09 | 1992-03-31 | Illinois Tool Works Inc. | Pull bead and guide rails for easy open flexible containers |
US5105603A (en) * | 1989-12-13 | 1992-04-21 | Multivac Sepp Haggenmuller Kg | Packaging machine for producing a reclosable package for a product |
US5875611A (en) * | 1997-02-25 | 1999-03-02 | Illinois Tool Works Inc. | Offset sealing method for plastic films |
US5924795A (en) * | 1991-02-22 | 1999-07-20 | Kraft Foods, Inc. | Tamper-evident, reclosable, flexible packages |
US6467956B1 (en) * | 2000-04-05 | 2002-10-22 | Reynolds Consumer Products, Inc. | Tamper evident package having slider device, and methods |
-
2002
- 2002-06-24 US US10/178,127 patent/US20030235352A1/en not_active Abandoned
Patent Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3780781A (en) * | 1971-09-07 | 1973-12-25 | Seisan Nipponsha Kk | Openable bag |
US4437293A (en) * | 1979-08-09 | 1984-03-20 | W. R. Grace & Co., Cryovac Div. | Method and apparatus for making a reclosable package |
US5023122A (en) * | 1988-01-29 | 1991-06-11 | Minigrip, Inc. | Easy open bag structure |
US5105603A (en) * | 1989-12-13 | 1992-04-21 | Multivac Sepp Haggenmuller Kg | Packaging machine for producing a reclosable package for a product |
US5096516A (en) * | 1990-04-09 | 1992-03-17 | Zip-Pak, Incorporated | Method of making dual reuseable pouches |
US5100246A (en) * | 1990-10-09 | 1992-03-31 | Illinois Tool Works Inc. | Pull bead and guide rails for easy open flexible containers |
US5121997A (en) * | 1990-10-09 | 1992-06-16 | Illinois Tool Words Inc. | Perforated tear strip for easy-open flexible containers |
US5924795A (en) * | 1991-02-22 | 1999-07-20 | Kraft Foods, Inc. | Tamper-evident, reclosable, flexible packages |
US5092684A (en) * | 1991-03-04 | 1992-03-03 | Illinois Tool Works Inc. | Post-applied zipper base with grip strip |
US5875611A (en) * | 1997-02-25 | 1999-03-02 | Illinois Tool Works Inc. | Offset sealing method for plastic films |
US6467956B1 (en) * | 2000-04-05 | 2002-10-22 | Reynolds Consumer Products, Inc. | Tamper evident package having slider device, and methods |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20040211696A1 (en) * | 2003-04-28 | 2004-10-28 | Underhill Kimberly Kay | Method of merchandising disposable absorbent pants |
US20050063617A1 (en) * | 2003-09-15 | 2005-03-24 | Tilman Paul A. | Reclosable bag having tamper-evident membrane |
US20080118189A1 (en) * | 2004-01-16 | 2008-05-22 | Johnson Joel L | Easy-open shrouded slider-zipper assembly for reclosable bag |
US20080159664A1 (en) * | 2004-07-21 | 2008-07-03 | Lawrence Share | Leakproof zipper end crush for reclosable bag |
US20150010252A1 (en) * | 2005-10-18 | 2015-01-08 | Innoflex Incorporated | Package having recloseable pour spout |
US9315299B2 (en) * | 2005-10-18 | 2016-04-19 | Innoflex Incorporated | Package having recloseable pour spout |
US20100074562A1 (en) * | 2006-09-22 | 2010-03-25 | Yoshinori Nanba | Easily tearable fastener tape, method of producing the fastener tape, packaging bag with easily tearable fastener tape, and device and method for producing the packaging bag |
US8540428B2 (en) * | 2006-09-22 | 2013-09-24 | Idemitsu Unitech Co., Ltd. | Easily tearable fastener tape, method of producing the fastener tape, packaging bag with easily tearable fastener tape, and device and method for producing the packaging bag |
US20110243481A1 (en) * | 2008-12-09 | 2011-10-06 | Shuichi Goto | Packaging bag with zipper tape, device and method for manufacturing packaging bag, and band-like member for bending |
US20120308166A1 (en) * | 2011-06-06 | 2012-12-06 | Vonco Products, Inc. | Easy open flexible container |
US9302835B2 (en) * | 2011-06-06 | 2016-04-05 | Vonco Products, Inc. | Easy open flexible container |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: ILLINOIS TOOL WORKS INC., ILLINOIS Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:PLOURDE, ERIC P.;SCHALLER, STEPHEN P.;REEL/FRAME:013032/0292 Effective date: 20020614 |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- AFTER EXAMINER'S ANSWER OR BOARD OF APPEALS DECISION |