EP0052338B1 - Hooked fabric fastener tape and method of producing same - Google Patents

Hooked fabric fastener tape and method of producing same Download PDF

Info

Publication number
EP0052338B1
EP0052338B1 EP81109621A EP81109621A EP0052338B1 EP 0052338 B1 EP0052338 B1 EP 0052338B1 EP 81109621 A EP81109621 A EP 81109621A EP 81109621 A EP81109621 A EP 81109621A EP 0052338 B1 EP0052338 B1 EP 0052338B1
Authority
EP
European Patent Office
Prior art keywords
loops
hook
warp threads
foundation structure
fastener tape
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.)
Expired
Application number
EP81109621A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0052338A1 (en
Inventor
Noritaka Tsubata
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.)
YKK Corp
Original Assignee
Yoshida Kogyo KK
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 Yoshida Kogyo KK filed Critical Yoshida Kogyo KK
Publication of EP0052338A1 publication Critical patent/EP0052338A1/en
Application granted granted Critical
Publication of EP0052338B1 publication Critical patent/EP0052338B1/en
Expired legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A44—HABERDASHERY; JEWELLERY
    • A44B—BUTTONS, PINS, BUCKLES, SLIDE FASTENERS, OR THE LIKE
    • A44B18/00—Fasteners of the touch-and-close type; Making such fasteners
    • A—HUMAN NECESSITIES
    • A44—HABERDASHERY; JEWELLERY
    • A44B—BUTTONS, PINS, BUCKLES, SLIDE FASTENERS, OR THE LIKE
    • A44B18/00—Fasteners of the touch-and-close type; Making such fasteners
    • A44B18/0023—Woven or knitted fasteners
    • A44B18/0038—Male or hook elements

Definitions

  • the present invention relates generally to surface type fasteners known as hook-and-loop fasteners, and more particularly to a fabric fastener tape carrying on its one surface a number of hook-shaped material engaging elements and a method of producing such a hooked fabric fastener tape.
  • a hooked fabric fastener tape of the type described is produced from a terry or uncut pile fabric carrying on its one surface a number of loops raised from the one surface, each of the loops having a pair of spaced leg sections and a head section interconnecting the leg sections (US-A-3154837).
  • Each loop is cut open or severed at one of the leg sections thereof to produce, on one hand, a hook-shaped material engaging element and, on the other hand, a stem.
  • the prior art hooked fabric fastener tape is disadvantageous in that after the loops have been cut open, the stems remain on the fastener tape adjacent to the corresponding hook-shaped material engaging elements in confronting relation to or substantially in vertical alignment with the respective free ends thereof.
  • the stems are liable to hinder cooperating loops on a mating looped fabric fastener tape from being introduced into and hooked by the hook-shaped material engaging elements as the two fastener tapes are pressed into face-to-face contact together.
  • the possibility of hooking between hooks and loops, and hence the firmness of engagement of a hook-and-loop fastener is considerably decreased.
  • the prior art method needs to include an additional treatment by a raising machine or another complicate and expensive device.
  • a hooked fabric fastener tape comprising a foundation structure including a weft thread, a plurality of first warp threads and a plurality of second warp threads of synthetic resin material in the form of raised pile threads consisting of a number of pairs of hook-shaped material engaging elements and stems, each pair of which has been produced from one loop.
  • a method of producing a hooked fabric fastener tape comprising the steps of: weaving together a weft thread, a plurality of first warp threads and a plurality of second warp threads of thermoplastic synthetic resin material, so as to form loops with said second warp threads on one of opposite surfaces of the so woven foundation structure, each of said loops having a pair of leg sections and a head section interconnecting said leg sections; heating said loops to cause the loops to retain their shape to form raised pile threads; and cutting each said loop at one of said leg sections thereof, whereby producing a hook-shaped material engaging element and a stem, while being woven, said second warp threads are submitted to a torque, said loops are heated at a temperature which allows the loops to retain an internal torsional stress stored during said weaving step and upon cutting the loops, said hook-shaped material engaging elements and the stems are allowed to displace, due to said internal torsional stress, angularly away from one another as
  • the present invention seeks to provide a hooked fabric fastener tape for hook-and-loop fasteners which can adhere to or engage with a cooperating looped fabric fastener tape with an increased degree of firmness.
  • the invention also seeks to provide a hooked fabric fastener tape having hook-shaped material engaging elements which can hook cooperating loops of a mating looped fabric fastener reliably without causing mis-engagement therewith.
  • the invention further seeks to provide a method which produces such a hooked fabric fastener tape simply and less costly.
  • the looped fabric fastener tape 10 includes a foundation structure 11 constituted by a weft thread and a plurality of first warp threads woven with the weft thread (these threads being not shown for clarification).
  • the fastener tape 10 also includes on one of opposite surfaces of the foundation structure 11 a number of loops 12 formed with a plurality of second warp threads woven into the foundation structure during the weaving operation of the same in a loom of the general type employed in weaving velvet ribbon.
  • Each of the loops 12 has a pair of leg sections 18, 19 and a head section 20 interconnecting the leg sections 18, 19.
  • the second warp threads preferably are thermoplastic monofilaments made of a synthetic resin material, such as nylon or other material capable of being set by heat into a predetermined shape.
  • the second warp threads are woven, while submitted to a torque or torsional load, together with the foundation weft and warp threads, with the result that the loops 12 formed with thus twisted warp threads are twisted correspondingly as shown in Figure 2. Exertion of the torque or twist may be done either as the second warp threads are supplied into the loom for formation of the loops 12 or as they are wound on bobbins, with the aid of a suitable torque exertion means.
  • the loops 12 are heated at a temperature which causes the loops 12 to retain their shape to form raised pile threads while allowing the same to retain an internal torsional stresses stored during the weaving operation.
  • the heating temperature of the loops 12 is preferably set at a relatively low temperature in a range within which the second warp threads of thermoplastic synthetic resin material retain their thermoplasticity.
  • Each of loops 12 is then cut open or severed at one 18 of the respective leg sections 18, 19 to produce, on one hand, a hook-shaped material engaging element 13 formed jointly with the other leg section 19, the head section 20 and a part of the one leg section 18 and, on the other hand, a stem 14 formed with the remainder of the cut one leg section 18 and constituting a dressed nap, whereupon the hook-shaped material engaging element and the stem 13, 14 are allowed to displace, due to the internal torsional stress stored therein, angularly away from each other as viewed from the general plane of the foundation structure 11, as shown in Figures 3 to 5.
  • a hooked fabric fastener tape 15 now converted from the looped fabric fastener tape 10 has the hook-shaped material engaging elements 13 which allow the cooperating loops 16 on the looped fabric fastener tape 17 to enter into hooking engagement therewith smoothly and reliably as the two fastener tapes 15, 17 are pressed together.
  • the possibility of hooking between hooks and loops, i.e. the firmness of engagement of a fastener is substantially increased.
  • the fastener tape 10 may be subjected to additional treatments at the desire, such as dyeing and fixing of the loops 12 to the foundation structure 11.
  • additional treatments at the desire such as dyeing and fixing of the loops 12 to the foundation structure 11.
  • the latter operation may be effected by coating or impregnating on the other or reverse surface of the foundation structure 11 with an adhesive or a heat settable resin capable of withstanding such temperatures as are likely to be encountered in normal usage of a hook-and-loop fastener of which the hooked fabric fastener tape 15 forms a part.

Landscapes

  • Slide Fasteners, Snap Fasteners, And Hook Fasteners (AREA)
EP81109621A 1980-11-14 1981-11-11 Hooked fabric fastener tape and method of producing same Expired EP0052338B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP160612/80 1980-11-14
JP55160612A JPS5784001A (en) 1980-11-14 1980-11-14 Hook member for velvet type bastener and production thereof

Publications (2)

Publication Number Publication Date
EP0052338A1 EP0052338A1 (en) 1982-05-26
EP0052338B1 true EP0052338B1 (en) 1984-07-25

Family

ID=15718694

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81109621A Expired EP0052338B1 (en) 1980-11-14 1981-11-11 Hooked fabric fastener tape and method of producing same

Country Status (7)

Country Link
EP (1) EP0052338B1 (es)
JP (1) JPS5784001A (es)
KR (1) KR840000716B1 (es)
AU (1) AU529711B2 (es)
CA (1) CA1170025A (es)
DE (1) DE3165114D1 (es)
ES (2) ES507659A0 (es)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0252175A1 (en) * 1986-07-08 1988-01-13 Erblok Associates c/o Thompson & Thompson Apparatus for making multiple hook fastener media
JPH07106164B2 (ja) * 1986-07-30 1995-11-15 株式会社クラレ 雄面ファスナー
DE69413586T2 (de) * 1993-04-08 1999-06-17 Magictape Co Ltd Flächenreissverschlussteil
JP5692958B2 (ja) * 2008-05-29 2015-04-01 帝人株式会社 面ファスナーおよび繊維製品

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3154837A (en) * 1957-10-02 1964-11-03 Internat Velcro Company Method for the manufacture of pile fabrics
US3136026A (en) * 1960-06-23 1964-06-09 Velcro Sa Soulie Method for producing a device for joining two flexibel elements
GB1102627A (en) * 1965-11-18 1968-02-07 Selectus Ltd Improvements in or relating to fastener members
US3879835A (en) * 1972-10-19 1975-04-29 George C Brumlik Method of making multi element self-gripping device having cooperating gripping elements

Also Published As

Publication number Publication date
EP0052338A1 (en) 1982-05-26
CA1170025A (en) 1984-07-03
ES8207419A1 (es) 1982-10-01
JPS5784001A (en) 1982-05-26
KR830006954A (ko) 1983-10-12
DE3165114D1 (en) 1984-08-30
ES261841Y (es) 1982-12-01
ES507659A0 (es) 1982-10-01
ES261841U (es) 1982-05-16
AU529711B2 (en) 1983-06-16
JPS6233884B2 (es) 1987-07-23
KR840000716B1 (en) 1984-05-24
AU7700981A (en) 1982-05-20

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