EP2732720A1 - Procédé de fabrication de fermeture éclair étanche à l'eau - Google Patents

Procédé de fabrication de fermeture éclair étanche à l'eau Download PDF

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Publication number
EP2732720A1
EP2732720A1 EP20130192711 EP13192711A EP2732720A1 EP 2732720 A1 EP2732720 A1 EP 2732720A1 EP 20130192711 EP20130192711 EP 20130192711 EP 13192711 A EP13192711 A EP 13192711A EP 2732720 A1 EP2732720 A1 EP 2732720A1
Authority
EP
European Patent Office
Prior art keywords
tapes
polymer material
manufacturing
waterproof
coil zipper
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Withdrawn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
EP20130192711
Other languages
German (de)
English (en)
Inventor
Tzu-Chi Chen
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.)
United Zipper & Machinery Co Ltd
Original Assignee
United Zipper & Machinery 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 United Zipper & Machinery Co Ltd filed Critical United Zipper & Machinery Co Ltd
Publication of EP2732720A1 publication Critical patent/EP2732720A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A44—HABERDASHERY; JEWELLERY
    • A44B—BUTTONS, PINS, BUCKLES, SLIDE FASTENERS, OR THE LIKE
    • A44B19/00—Slide fasteners
    • A44B19/42—Making by processes not fully provided for in one other class, e.g. B21D53/50, B21F45/18, B22D17/16, B29D5/00
    • A—HUMAN NECESSITIES
    • A44—HABERDASHERY; JEWELLERY
    • A44B—BUTTONS, PINS, BUCKLES, SLIDE FASTENERS, OR THE LIKE
    • A44B19/00—Slide fasteners
    • A44B19/24—Details
    • A44B19/32—Means for making slide fasteners gas or watertight
    • A—HUMAN NECESSITIES
    • A44—HABERDASHERY; JEWELLERY
    • A44B—BUTTONS, PINS, BUCKLES, SLIDE FASTENERS, OR THE LIKE
    • A44B19/00—Slide fasteners
    • A44B19/10—Slide fasteners with a one-piece interlocking member on each stringer tape
    • A44B19/12—Interlocking member in the shape of a continuous helix
    • 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
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/10—Methods of surface bonding and/or assembly therefor
    • Y10T156/1052—Methods of surface bonding and/or assembly therefor with cutting, punching, tearing or severing
    • Y10T156/1084—Methods of surface bonding and/or assembly therefor with cutting, punching, tearing or severing of continuous or running length bonded web
    • Y10T156/1085—One web only

Definitions

  • the present invention generally relates to a manufacturing method of zipper; and, more particularly, it relates to a manufacturing method of waterproof coil zipper able to avoid permeation in a fastened state.
  • Zippers are daily used tools for modem lives. Many products such as clothes, bags, shoes are able to be opened or closed fast by using zippers, which surely improve the convenience of our lives.
  • a requirement in "waterproof zipper” able to be watertight when in a fastened state is gradually raised since the above said products are sometimes used outside in a rainy or windy environment.
  • inventions of nylon waterproof zipper are gradually proposed.
  • the above zippers may be plastic zippers, metal zippers, coil zippers, etc.
  • the coil zippers can be categorized as nylon zippers or polyester zippers according to different material used.
  • nylon waterproof zippers provide the waterproof function through applying a water repellent coating to the tapes of a nylon zipper.
  • this kind of conventional nylon waterproof zippers cannot provide a wholly watertight performance when fastened since water may permeate through a fastened zipper via the gap between its engaged teeth.
  • the water repellent coating may flake off the tapes after a period of time. The above reasons both worsen permeation of the nylon waterproof zippers.
  • nylon waterproof zippers which is shown in Figs. 1 and 2 , labeled as "9," and is manufactured by the following steps.
  • a waterproof film 94 is formed on and covers the two tapes 91 and the two sets of teeth 92 by either drying water repellant coated thereon or applying an adhered waterproof film thereon.
  • a cutting step is performed to simultaneously cut a combination of the elastomer body 93 and the waterproof film 94 into two parts for the two sets of teeth 92 to be separated when unfastened.
  • the elastomer body 93 and waterproof film 94 are formed by two separate steps, the above manufacturing method is not efficient enough.
  • the waterproof film 94 can flake off the elastomer body 93 because there is a combining junction between the elastomer body 93 and waterproof film 94 since they are not integrally formed, and thus the watertight performance of the nylon waterproof zipper 9 may reduce as time goes by.
  • Another objective of this invention is to provide a manufacturing method of waterproof coil zipper that integrally forms the anti-permeating body and waterproof layer, so as to ensure a combination of these two members and to prolong lifetime of the produced waterproof coil zipper.
  • One embodiment of the invention comprises: preparing a coil zipper including two tapes and two teeth sets, wherein the two tapes are spaced from each other to define an interspace therebetween, wherein each of the tapes has a first surface and a second surface opposite to the first surface, the second surface of each of the tapes connects with a respective one of the two teeth sets, and the two teeth sets engage with each other; extruding a melted polymer material to fill a gap between the two teeth sets and the interspace between the two tapes, and to cover the first surfaces of the two tapes; cooling the polymer material to integrally form an anti-permeating body and a first waterproof layer, wherein the anti-permeating body is filled in the gap between the two engaged teeth sets, and the first waterproof layer covers the first surfaces of the two tapes; and cutting the anti-permeating body by a cutting tool.
  • cutting the anti-permeating body further comprises cutting the anti-permeating body along a longitudinal center plane of a combination of the engaged teeth sets.
  • the manufacturing method further comprises applying an adhesive to the first surfaces of the two tapes before extruding the melted polymer material.
  • extruding the melted polymer material further comprises covering the second surfaces of the two tapes by the melted polymer material, and cooling the polymer material further comprises forming a second waterproof layer on the second surface.
  • the manufacturing method further comprises applying an adhesive to the second surfaces of the two tapes before extruding the melted polymer material.
  • preparing the coil zipper further comprises spacing two opposite third surfaces of the tapes by a predetermined distance, with each of the third surfaces linking the first and second surfaces of a respective one of the two tapes.
  • each of the two tapes further comprises a fourth surface opposite to the third surface thereof. Based on this, extruding the melted polymer material further comprises covering the fourth surface of one of the two tapes by the melted polymer material, and cooling the polymer material further comprises forming a third waterproof layer on the fourth surface of the one of the two tapes.
  • the manufacturing method further comprises applying an adhesive to the fourth surface of the one of the two tapes before extruding the melted polymer material.
  • each of the two tapes further comprises a fourth surface opposite to the third surface thereof. Based on this, extruding the melted polymer material further comprises covering the fourth surfaces of both of the two tapes by the melted polymer material, and cooling the polymer material further comprises forming a third waterproof layer on each of the fourth surfaces.
  • the manufacturing method further comprises applying an adhesive to the fourth surfaces of both of the two tapes before extruding the melted polymer material.
  • FIG. 3 through 5 a preferred embodiment of a manufacturing method of waterproof coil zipper of the present invention, which will be further illustrated as the following, is shown.
  • the first step is preparing a coil zipper (nylon or polyester zipper), with the coil zipper including two tapes 1 and two teeth sets 2.
  • the two tapes 1 are spaced from each other to define an interspace therebetween.
  • the tape 1 has a first surface 1a, a second surface 1b opposite to the first surface 1a, and a third surface 1c linking the first and second surfaces 1a, 1b.
  • Each of the teeth sets 2 connects to the second surface 1b of a respective one of the tapes 1, and the two teeth sets 2 engage but are able to be unfastened with each other.
  • the third surfaces 1c of the two tapes 1 face each other while the two teeth sets 2 engage, and said two third surfaces 1c are spaced from each other by a predetermined distance.
  • a junction of the teeth sets 2 is exposed between the first surfaces 1a of the two tapes 1 when the teeth sets 2 are engaged with each other.
  • the second step is extruding a melted polymer material to fill a gap between the two engaged teeth sets 2 and the interspace between the two tapes 1, and also to cover the first surfaces 1a of the two tapes 1.
  • the melted polymer material is applied to a side of the coil zipper, which has the first surfaces 1a, for the polymer material to permeate into the said gap and to cover the first surfaces 1a.
  • the polymer material is Thermoplastic polyurethanes (TPU) or the likes of TPU, which can attach to cloth or leather with a high stickiness.
  • the polymer material forms two parts: an anti-permeating body 3 and a first waterproof layer 4, which are integrally formed and connected, with said anti-permeating body 3 filled in the gap between the two engaged teeth sets 2, and with said first waterproof layer 4 covering the first surfaces 1a of the two tapes 1.
  • the anti-permeating body 3 can avoid any liquid passing through said waterproof coil zipper via the gap between the two teeth sets 2.
  • the combination between the anti-permeating body 3 and first waterproof layer 4 is surely improved since they are formed integrally. Therefore, a wholly watertight performance can be provided for a long time period.
  • the polymer material forming the first waterproof layer 4 can be used to seamlessly connect the manufactured waterproof coil zipper with cloth or leather in a hot-melt-adhesion manner, so as to achieve an improved watertight performance.
  • the manufacturing waterproof coil zipper can provide a dual side watertight performance and thus is suitable for reversible products such as reversible jackets.
  • the second waterproof layer 5 can also enhance the seamless connection between the waterproof coil zipper and cloth or leather.
  • each tape 1 may further comprise a fourth surface 1d opposite to the third surface 1c thereof.
  • the fourth surface 1d also links the first and second surfaces 1a, 1b.
  • said polymer material may be applied to the fourth surface 1d of the tape 1 to form a third waterproof layer 7 covering the fourth surface 1d.
  • the third waterproof layer 7 may be integrally formed with the first and second waterproof layers 4, 5 in extrusion molding.
  • Fig. 9 is a partial, enlarged view of the coil zipper in Fig. 8 , showing the detailed arrangement between the first, second and third waterproof layers 4, 5, 7 and the adhesive 6.
  • the anti-permeating body 3 and the first waterproof layer 4 can be formed simultaneously in the same step, and thus the manufacturing steps for the waterproof coil zipper are simplified to shorten the manufacturing cycle time, lower the manufacturing cost, increase the manufacturing efficiency, and prolong the lifetime of products.

Landscapes

  • Slide Fasteners (AREA)
  • Laminated Bodies (AREA)
EP20130192711 2012-11-15 2013-11-13 Procédé de fabrication de fermeture éclair étanche à l'eau Withdrawn EP2732720A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TW101142669A TW201417736A (zh) 2012-11-15 2012-11-15 尼龍防水拉鍊之製法

Publications (1)

Publication Number Publication Date
EP2732720A1 true EP2732720A1 (fr) 2014-05-21

Family

ID=49674138

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20130192711 Withdrawn EP2732720A1 (fr) 2012-11-15 2013-11-13 Procédé de fabrication de fermeture éclair étanche à l'eau

Country Status (4)

Country Link
US (1) US20140130974A1 (fr)
EP (1) EP2732720A1 (fr)
CN (1) CN103815623A (fr)
TW (1) TW201417736A (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014006684A1 (fr) * 2012-07-02 2014-01-09 Ykk株式会社 Fermeture à glissière résistant à l'eau
WO2014010019A1 (fr) * 2012-07-09 2014-01-16 Ykk株式会社 Bande de fermeture, fermeture à glissière équipée de celle-ci et procédé de fabrication de bande de fermeture
TWI505788B (en) * 2013-06-18 2015-11-01 Clamped type coupling element slide fastener with the structure impervious to fluid thereof
DE112014007284B4 (de) * 2014-12-25 2023-03-02 Ykk Corporation Reißverschlusskette, mit der Reißverschlusskette versehener Reißverschluss und Herstellungsverfahren für die Reißverschlusskette
CN107404981B (zh) * 2015-04-03 2020-09-29 Ykk株式会社 防水性链带的制造方法及防水性链带
CN105595540A (zh) * 2016-01-12 2016-05-25 中山市骏坚服装拉链有限公司 一种密封防水拉链的制造方法
TWI731887B (zh) * 2016-10-24 2021-07-01 周朝木 具防滲功能之拉鏈
TWI664932B (zh) * 2018-12-11 2019-07-11 冠宇拉鍊股份有限公司 阻水拉鍊
CN109645627B (zh) * 2019-01-15 2024-07-09 东莞市鼎富拉链科技有限公司 一种防渗水拉链

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1129368A (en) * 1965-11-23 1968-10-02 Opti Holding Ag Improvements in or relating to sliding clasp fasteners
US3591914A (en) * 1969-04-21 1971-07-13 Opti Holding Ag Method and apparatus for making fluidtight slide fastener
EP1908365A1 (fr) * 2006-10-04 2008-04-09 Riri Group S.A. Fermeture à glissière étanche aux fluides
US20100125982A1 (en) * 2008-11-26 2010-05-27 Chao-Mu Chou Continuous-coil type waterproof slide fastener and the structure impervious to fluid thereof

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1908364A1 (fr) * 2006-10-04 2008-04-09 Riri Group S.A. Fermeture à glissière étanche
CN101543329A (zh) * 2008-03-26 2009-09-30 熊黎平 一种新型无缝防水拉链
TW201103460A (en) * 2009-07-23 2011-02-01 Chao-Mu Zhou Impervious structure of continuous-loop type zipper
GB0912179D0 (en) * 2009-07-13 2009-08-26 Ykk Europ Ltd Watertight zip fastener
GB201012592D0 (en) * 2010-07-27 2010-09-08 Ykk Europ Ltd Zip fastener

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1129368A (en) * 1965-11-23 1968-10-02 Opti Holding Ag Improvements in or relating to sliding clasp fasteners
US3591914A (en) * 1969-04-21 1971-07-13 Opti Holding Ag Method and apparatus for making fluidtight slide fastener
EP1908365A1 (fr) * 2006-10-04 2008-04-09 Riri Group S.A. Fermeture à glissière étanche aux fluides
US20100125982A1 (en) * 2008-11-26 2010-05-27 Chao-Mu Chou Continuous-coil type waterproof slide fastener and the structure impervious to fluid thereof

Also Published As

Publication number Publication date
US20140130974A1 (en) 2014-05-15
TW201417736A (zh) 2014-05-16
CN103815623A (zh) 2014-05-28

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