EP1418131A1 - Wiederverschliessbarer Beutel mit Reissverschluss - Google Patents

Wiederverschliessbarer Beutel mit Reissverschluss Download PDF

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Publication number
EP1418131A1
EP1418131A1 EP03025199A EP03025199A EP1418131A1 EP 1418131 A1 EP1418131 A1 EP 1418131A1 EP 03025199 A EP03025199 A EP 03025199A EP 03025199 A EP03025199 A EP 03025199A EP 1418131 A1 EP1418131 A1 EP 1418131A1
Authority
EP
European Patent Office
Prior art keywords
zipper
bag
resin
packaging bag
tapes
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.)
Withdrawn
Application number
EP03025199A
Other languages
English (en)
French (fr)
Inventor
Yukihiko Shibata
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.)
Daiwa Gravure Co Ltd
Original Assignee
Daiwa Gravure Co Ltd
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 Daiwa Gravure Co Ltd filed Critical Daiwa Gravure Co Ltd
Publication of EP1418131A1 publication Critical patent/EP1418131A1/de
Withdrawn legal-status Critical Current

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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
    • 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

  • the present invention relates to a packaging bag with a zipper.
  • a conventional packaging bag with zipper of this kind is known from Utility Model Registration No. 2557256, for example.
  • a packaging bag is conventionally known wherein an openable and closable zipper which performs a male and female coupling action is provided at opposing positions of a bag in the vicinity of the opening end thereof, and in an integral fashion with the bag.
  • a packaging bag of the kind disclosed in Utility Model Registration No. 2557256 described above which comprises an integrally provided openable and closable zipper performing a male and female coupling action, before opening or closing the zipper, the perimeter of the bag is closed by heat sealing along the edge adjacent to the opening end of the bag, and when the zipper is opened and the contents of the bag are to be removed, the heat sealed section along the edge adjacent to the opening end of the bag is cut and discarded. In this state, the zipper is opened and the contents are removed.
  • the zipper is opened, and the contents removed, after cutting the heat seal section at the edge adjacent to the opening end of the bag, but during transportation of the product (a bag containing the contents), or the like, the contents (liquid contents) may pass through small gaps in the male/female engaging section of the zipper, due to the pressure of the contents, or the like, and collect inbetween the zipper section and the heat seal section along the edge adjacent to the opening end of the bag, and if, in this state, the end consumer who has purchased the product cuts the heat seal portion along the edge adjacent to the opening end of the bag, in order to remove the contents, then the liquid contents that have collected between the zipper section and the heat seal section along the edge adjacent to the opening end of the bag will spill out.
  • the present invention was devised in order to resolve the aforementioned problem, an object thereof being to prevent contents from entering between the zipper section and the heat seal section along the edge adjacent to the opening end of the bag, during transportation, or the like.
  • a packaging bag with zipper in which a male zipper tape and a female zipper tape are bonded to inner faces of respective front and rear side sheet sections, or rear and front side sheet sections, in the vicinity of the opening end of the bag.
  • the upper end of the bag comes at the top when the bag is in an upright state.
  • the opening end of the bag is located above a position where the zipper is disposed, and is closed by means of heat sealing.
  • the respective zipper tapes are bonded together in at least a region below the engaging section of the zipper tapes, out of regions above and below the same engaging section, with heat sealing strength of a degree that allows the zipper tapes to be manually peeled apart, by means of an interface peeling action, an interlayer peeling action, or a cohesive peeling action.
  • either one of the zipper tapes is made from a hot melt type adhesive resin, and the other zipper tape is made from a polyethylene type resin or a polypropylene type resin of the same kind as a material forming the inner layers of the bag.
  • both zipper tapes are made from a polyethylene type resin or polypropylene type resin of the same type as the material forming the inner layers of the bag, and a hot melt type adhesive resin section is provided on one of the zipper tapes at least in a bonding region formed by heat sealing below the engaging section of the zipper tapes.
  • one of the zipper tapes is made from a hot melt type adhesive resin
  • the outer face of the other zipper tape is made from a polyethylene type resin or polypropylene type resin of the same type as the material forming the inner layers of the bag
  • the inner face of the other zipper tape is made from a polyethylene type resin or polypropylene type resin of a different type from the material forming the inner layers of the bag.
  • the inner faces of both zipper tapes are made from a polyethylene type resin or polypropylene type resin, and a hot melt type adhesive resin section is provided on the inner face of one of the zipper tapes, at least in a bonding region formed by heat sealing in a position below the engaging section of the zipper tapes.
  • a hot melt type adhesive resin section which is to be bonded to the inner layer of the bag, is provided on the outer face of the zipper tape made from polyethylene type resin or polypropylene type resin.
  • both zipper tapes are made from a resin containing a material comprising a random mixture of a straight-chain low-density polyethylene type resin and a polybutene-1 resin.
  • a resin section containing a material comprising a random mixture of a straight-chain low-density polyethylene type resin and a polybutene-1 resin is provided on the inner faces of both zipper tapes, at least in the bonding region formed by heat sealing below the engaging section of the zipper tapes.
  • the heat sealed section along the edge adjacent to the opening end of the packaging bag is cut, and in this state, the bonding region between the zipper tapes can be peeled apart readily with user's fingers, and the contents can be removed from the packaging bag.
  • Fig. 1 to Fig. 3 show a first embodiment of the present invention.
  • numeral 1 denotes a four-side seal type packaging bag, wherein a male zipper tape 4 and a female zipper tape 5 are bonded by heat sealing to the inner faces of respective sheet sections 2, 3 on the front side and rear side (or vice versa) of the bag in the vicinity of the opening end of the packaging bag 1.
  • the sheet sections 2, 3 forming the packaging bag 1 have a two-layer structure wherein the respective outer layers 2a, 3a are made from nylon film and the respective inner layers 2b, 3b are made from polyethylene film.
  • the male zipper tape 4 and the female zipper tape 5 are bonded to the inner faces of the respective sheet sections 2, 3, in the vicinity of the opening end of the packaging bag 1 located at the upper end of the packaging bag 1 when the bag is in an upright state, and more specifically, in a position slightly below the upper end of the packaging bag 1, and these zipper tapes are fabricated from materials of the kinds described below.
  • A is a hot melt type adhesive resin
  • B is a polypropylene type resin
  • a polyethylene type resin layer 6 and a hot melt type adhesive resin layer 7 are formed respectively by combined extrusion on the material A forming the male zipper tape 4 and material B forming the female zipper tape 5, on the faces thereof which oppose the inner faces 2b, 3b of the respective sheet sections 2, 3.
  • the male zipper tape 4 and the female zipper tape 5 are heat sealed, respectively, onto the inner face of the sheet section 2 and the inner face of the sheet section, at a temperature of 180°C, for example, a sealing time of one second, and a sealing pressure of 20 N/cm 2 , then the polyethylene type resin layer 6 of the zipper tape 4 and the inner layer 2b of the polyethylene film of the sheet section 2 fuse together, and the hot melt type adhesive resin layer 7 of the zipper tape 5 fuses with the inner layer 3b of the polyethylene film of the sheet section 3.
  • the polyethylene type resin layer 6 of the zipper tape 4 and the polyethylene film of the inner layer 2b of the sheet section 2 are of the same type and become completely fused together, and the hot melt type adhesive resin layer 7 of the zipper tape 5 and the polyethylene film of the inner layer 3b of the sheet section 3 are bonded together by a heat sealing strength of approximately 5 N/15 mm.
  • the hot melt type adhesive resin has characteristics whereby, when heated, it bonds with polyolefin type resins, such as polyethylene, and has a heat sealing strength with polyolefin type resins of 5 N/15 mm or above.
  • the respective zipper tapes 4, 5 are bonded together by heat sealing along a lower end in the width direction of the zipper portion when the packaging bag 1 is in an upright state, in such a manner that the zipper tapes can be peeled apart by an interface peeling action.
  • Numeral 8 denotes the bonding region between the zipper tapes 4, 5. Since the material of the zipper tape 4 is a hot melt type adhesive resin, and the material of the zipper tape 5 is a polypropylene type resin, then the heat sealing strength will be approximately the aforementioned figure of 5 N/15 mm. This heat sealing strength of approximately 5 N/15 mm is of a degree that allows the zipper tapes to be peeled apart readily by hand.
  • hot melt type adhesive resin Various types of hot melt type adhesive resin are known, but in the present embodiment, it is possible to use, as a resin suitable for bonding the zipper tapes 4, 5 together in such a manner that they can be peeled apart by an interface peeling action, for example, a resin formed from a resin composition comprising at least one type of resin selected from a group comprising ethylene ethylacrylate copolymer comprising a main ingredient of ethylene vinyl acetate copolymer manufactured by Hirodine Corp., and petroleum resins, turpentine resins and rosin type resins.
  • a resin suitable for bonding the zipper tapes 4, 5 together in such a manner that they can be peeled apart by an interface peeling action for example, a resin formed from a resin composition comprising at least one type of resin selected from a group comprising ethylene ethylacrylate copolymer comprising a main ingredient of ethylene vinyl acetate copolymer manufactured by Hirodine Corp., and petroleum resins,
  • the material of the male zipper tape 4 is stated as a hot melt type adhesive resin
  • the material of the female zipper tape 5 is stated as a polypropylene type resin, but a reverse configuration is also possible.
  • a hot melt type adhesive resin layer is formed on the male zipper tape 4
  • a polyethylene type resin layer is formed on the female zipper tape 5.
  • the packaging bag 1 was a rectangular seal type bag, but it is also possible to apply it to a gusset type bag, butt-seam bag, standing pack type bag, or the like.
  • Numeral 10 denotes the heat sealed section about the periphery of the packaging bag 1.
  • the respective zipper tapes 4, 5 are bonded together along the lower end in the width direction of the zipper portion when the packaging bag 1 is in an upright state, with a heat sealing strength of a degree that allows the zipper tapes to be peeled apart readily by hand, so that there will be no infiltration of liquid contents through gaps in the engaging section 9 between the zipper tapes 4, 5, during transportation, or the like.
  • the heat sealing strength of the bonding region 8 between the zipper tapes 4, 5 is approximately the same as the heat sealing strength between the inner face of the packaging bag 1 and the female zipper tape 5 provided with a hot melt type adhesive resin layer 7 made from a polypropylene type resin as described above, but since the bonding region 8 is disposed in the end portion below the position of the zipper, then separation between the female zipper tape 5 and the packaging bag 1 is not liable to occur when the bonding region 8 below the zipper is peeled apart manually with the user's fingers.
  • a bonding region 8 is provided between the zipper tapes 4, 5 in an end region below the position in which the zipper is disposed, but in addition to this bonding region 8, it is also possible to provide a bonding region between the zipper tapes 4, 5 in a position slightly below the end portion located above the zipper position.
  • the two zipper tapes 4, 5 are bonded together in such a manner that they can be peeled apart by an interface peeling action, by a heat sealing strength of a degree which permits the tapes to be peeled apart manually, at a position below the engaging section 9 of the zipper tapes 4, 5, but it is also possible for them to be bonded on the basis of an interlayer peeling action or a cohesive peeling action.
  • a hot melt type adhesive resin used for forming a cohesive peel it would be suitable to use a resin having a polyolefin known as VMX (registered trademark) manufactured by Mitsubishi Chemical Corp.
  • a main ingredient which comprises a polymer alloy of a multi-component polymer in which non-crystalline vinyl polymer is contained in a uniform manner in a polyolefin resin which has been grafted with a radical polymerisation monomer, and a polymer in which styrene is dispersed in the dispersion phase of a polyolefin.
  • the packaging bag 1 is made from a synthetic resin fabricated from sheet sections 2, 3 having a two-layer structure comprising nylon film in the outer layers 2a, 3a, and polyethylene film in the inner layers 2b, 3b, but the materials used are not limited in particular to these.
  • a synthetic resin film such as a polyethylene film or a polypropylene film, or the like, is used to fabricate the inner layers, due to the requirements of heat sealing, it is possible to use a material other than a synthetic resin, such as aluminium foil, paper, rayon paper, or the like, as a material to be laminated on the outer sides of the inner layers.
  • a polyethylene type resin layer 6 and a hot melt type adhesive resin layer 7 are formed respectively on the faces opposing the inner layers 2b, 3b of the respective sheet sections 2, 3, but whilst the hot melt type adhesive resin layer 7 provided on the side of the female zipper tape 5 made from a polypropylene type resin is required, it is possible to omit the polyethylene type resin layer 6 provided on the side of the male zipper tape 4 made from a hot melt type adhesive resin.
  • the male zipper tape or the female zipper tape from a hot melt type adhesive resin
  • the other zipper tape made from a polyethylene type resin since the other zipper tape made from a polyethylene type resin is of the same type as the polyethylene film on the inner layer 3b of the sheet section 3, it will fuse completely with same, and the zipper tape made from a hot melt type adhesive resin and the polyethylene film on the inner layer 4b of the sheet section 4 will be bonded together by a heat sealing strength of approximately 5 N/15 mm, similarly to the embodiment described above.
  • the heat sealing strength between the zipper tapes may also be approximately 5 N/15 mm, and the two zipper tapes may be bonded together on the basis of an interface peeling action, as in the embodiment described above, or a interlayer peeling action, or a cohesive peeling action.
  • a composition may also be adopted wherein one of the zipper tapes is made from a hot melt type adhesive resin, and the outer face of the other zipper tape is made from a polyethylene type resin, whilst the inner face thereof is made from a polypropylene type resin which is different to the material forming the inner layer of the packaging bag 1.
  • the zipper tapes 4, 5 are bonded by heat sealing to the inner faces of the respective sheet sections 2, 3 of the packaging bag 1, but it is also possible for the two zipper tapes 4, 5 to be installed on the inner faces of the respective sheet sections 2, 3 of the packaging bag 1 by being laid respectively over the inner faces of the sheet sections 2, 3 of the packaging bag 1 in a sheet state, and bonded to same, whilst the zipper tapes 4, 5 are in a molten state directly after molten extrusion.
  • Fig. 4 shows a second embodiment of the present invention.
  • the second embodiment shown in Fig. 4 is a modification of the first embodiment shown in Fig. 1. to 3, and whereas in the first embodiment, the male zipper tape 4 and the hot melt type adhesive resin layer 7 provided on the outer face side of the female zipper tape 5 are made entirely of a hot melt type adhesive resin, in this second embodiment, the male zipper tape 4 is made from a polyethylene type resin of the same type as the inner layer 2b of the packaging bag 1, and the female zipper tape 5 is made from a polypropylene type resin, a section 11 made from a hot melt type adhesive resin being provided on the inner face of the male zipper tape 4, in the vicinity of the bonding region 8 of the two zipper tapes 4, 5, and a section 12 made from a hot melt type adhesive resin being provided on the entire outer face side of the female zipper tape 5.
  • Fig. 5 shows a third embodiment of the present invention.
  • the male zipper tape 4 and the female zipper tape 5 are both made from a polyethylene type resin of the same type as forming the inner layers 2b, 3b of the packaging bag 1, and a section 13 made from a hot melt type adhesive resin is provided on the inner face of the female zipper tape 5, only in the vicinity of the bonding region 8 of the zipper tapes 4, 5.
  • both the zipper tapes 4, 5 are made from a resin containing a random mixture of a straight-chain type low-density polyethylene resin and a polybutene-1 resin, for example, as means for bonding the zipper tapes 4, 5 together in a readily peelable manner, in a position below the engaging section 9, with heat sealing strength of a degree that allows the zipper tapes to be manually peeled apart.
  • the bonding region 8 along the lower end section of the zipper tapes 4, 5 fabricated from the foregoing material will not couple completely, and hence it will be possible to peel apart the bonding region 8 of the zipper tapes 4, 5, readily and manually, by means of a cohesive peeling action.
  • Fig. 6 shows a fourth embodiment of the present invention.
  • both of the zipper tapes 4, 5 are made from a polyethylene type resin of the same type as forming the inner layers 2b, 3b of the packaging bag 1, and resin sections 14, 15 containing a resin comprising a random mixture of a straight-chain low-density polyethylene type resin and a polybutene-1 resin are provided on the inner faces of the two zipper tapes 4, 5, at least in the vicinity of the bonding region 8 located below the engaging section 9 of the zipper tapes 4, 5.
  • This also causes the bonding region 8 in the lower end section of the zipper tapes 4, 5 not to couple together completely, and hence it will be possible to peel apart the bonding region 8 of the zipper tapes 4, 5 readily and manually by means of a cohesive peeling action.
  • the respective zipper tapes 4, 5 may have a structure comprising three or more layers.
  • a adhesive resin a material other than a polyethylene type resin or a polypropylene type resin, a hot melt type adhesive resin, or a resin containing a random mixture of a straight-chain type low-density polyethylene type resin and a polybutene-1 resin.
  • the bonding region 9 of the zipper tapes 4, 5 is bonded with a heat seal strength of approximately 5 N/15 mm, but it may be sufficient if the heat sealing strength is 1 N/15 mm or above.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bag Frames (AREA)
EP03025199A 2002-11-07 2003-11-04 Wiederverschliessbarer Beutel mit Reissverschluss Withdrawn EP1418131A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2002323230 2002-11-07
JP2002323230 2002-11-07

Publications (1)

Publication Number Publication Date
EP1418131A1 true EP1418131A1 (de) 2004-05-12

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JP2005342323A (ja) * 2004-06-04 2005-12-15 Idemitsu Unitech Co Ltd チャックテープ、チャックテープ付き包装袋及びチャックテープ付き包装袋の製造方法
EP1982610A1 (de) * 2006-01-27 2008-10-22 Idemitsu Unitech Co. Ltd. Reissverschlussband, verpackungsbeutel mit reissverschlussband und vorrichtung zur herstellung von verpackungsbeuteln mit reissverschlussbändern
WO2009128994A1 (en) * 2008-04-14 2009-10-22 Illinois Tool Works Inc. Flow-wrapper package with reclosure
WO2009146271A1 (en) * 2008-05-30 2009-12-03 Illinois Tool Works Inc. Sealant on polyethylene zipper for polypropylene film substrates
WO2022064281A1 (zh) * 2020-09-25 2022-03-31 科劲市场管理有限公司 具有密封机构的袋式容器

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US20050042664A1 (en) * 2003-08-22 2005-02-24 Medimmune, Inc. Humanization of antibodies
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JP2008542140A (ja) * 2005-06-01 2008-11-27 レイノルズ コンシューマー プロダクツ、インク． 密閉部材の内外両面にシーリング材を有する再閉可能なジッパー
JP5087219B2 (ja) * 2005-11-08 2012-12-05 出光ユニテック株式会社 咬合具、これを用いた袋およびこれらの製造方法
US9011003B2 (en) * 2006-02-08 2015-04-21 S.C. Johnson Home Storage, Inc. Reclosable pouch and zipper for a reclosable pouch
JP4805742B2 (ja) * 2006-07-19 2011-11-02 出光ユニテック株式会社 チャックテープ付き包装袋
US7784160B2 (en) 2007-03-16 2010-08-31 S.C. Johnson & Son, Inc. Pouch and airtight resealable closure mechanism therefor
US7886412B2 (en) 2007-03-16 2011-02-15 S.C. Johnson Home Storage, Inc. Pouch and airtight resealable closure mechanism therefor
KR20100016509A (ko) * 2007-05-10 2010-02-12 이데미쓰 유니테크 가부시키가이샤 척 테이프 및 척 테이프가 부착된 포장 봉지
US7887238B2 (en) 2007-06-15 2011-02-15 S.C. Johnson Home Storage, Inc. Flow channels for a pouch
US7967509B2 (en) 2007-06-15 2011-06-28 S.C. Johnson & Son, Inc. Pouch with a valve
US7857515B2 (en) 2007-06-15 2010-12-28 S.C. Johnson Home Storage, Inc. Airtight closure mechanism for a reclosable pouch
US7946766B2 (en) 2007-06-15 2011-05-24 S.C. Johnson & Son, Inc. Offset closure mechanism for a reclosable pouch
US7874731B2 (en) 2007-06-15 2011-01-25 S.C. Johnson Home Storage, Inc. Valve for a recloseable container
JP5595026B2 (ja) * 2009-12-11 2014-09-24 出光ユニテック株式会社 ジッパーテープ、及び、ジッパーテープ付き包装袋
US20110162329A1 (en) * 2010-01-05 2011-07-07 Flair Flexible Packaging Corporation Bag having both permanent and resealable seals
US20110274801A1 (en) * 2010-05-10 2011-11-10 Robin Haber Elastomeric multi-function squeezer/strainer device
JPWO2016159148A1 (ja) * 2015-03-31 2018-01-25 出光ユニテック株式会社 ジッパーテープ付袋体およびその製造方法
PL242136B1 (pl) 2019-02-08 2023-01-23 Elplast Europe Spolka Z Ograniczona Odpowiedzialnoscia Zamknięcie strunowe z zabezpieczeniem przed otwarciem oraz opakowanie z zamknięciem strunowym z zabezpieczeniem przed otwarciem

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EP0371402A2 (de) * 1988-11-29 1990-06-06 Idemitsu Petrochemical Co. Ltd. Verschluss und Verpackungsbeutel mit diesem Verschluss
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Cited By (7)

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Publication number Priority date Publication date Assignee Title
JP2005342323A (ja) * 2004-06-04 2005-12-15 Idemitsu Unitech Co Ltd チャックテープ、チャックテープ付き包装袋及びチャックテープ付き包装袋の製造方法
EP1982610A1 (de) * 2006-01-27 2008-10-22 Idemitsu Unitech Co. Ltd. Reissverschlussband, verpackungsbeutel mit reissverschlussband und vorrichtung zur herstellung von verpackungsbeuteln mit reissverschlussbändern
EP1982610A4 (de) * 2006-01-27 2010-03-31 Idemitsu Unitech Co Ltd Reissverschlussband, verpackungsbeutel mit reissverschlussband und vorrichtung zur herstellung von verpackungsbeuteln mit reissverschlussbändern
US8011831B2 (en) 2006-01-27 2011-09-06 Idemitsu Unitech Co., Ltd. Zipper tape, packing bag with zipper tape and apparatus for producing packing bag with zipper tape
WO2009128994A1 (en) * 2008-04-14 2009-10-22 Illinois Tool Works Inc. Flow-wrapper package with reclosure
WO2009146271A1 (en) * 2008-05-30 2009-12-03 Illinois Tool Works Inc. Sealant on polyethylene zipper for polypropylene film substrates
WO2022064281A1 (zh) * 2020-09-25 2022-03-31 科劲市场管理有限公司 具有密封机构的袋式容器

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