Method of producing a slide-fastener stringer on a needle loom

Details Method of producing a slide-fastener stringer on a needle loom Method of producing a slide-fastener stringer on a needle loom

1988-05-26

1989-06-06

Jaudon, Henry S.

Textiles: weaving

Weft manipulation

Pile

139452, 139118, D03D 100, D03D 4100

Patent

active

048362514

ABSTRACT:
A method of producing a continuous slide fastener strip by weaving on an automatic needle loom, warp yarns for support tape and warp yarns for tying-in being guided to form sheds, weaving needles being used to pick weft yarns for the support tape and a plastics monofilament yarn. A weaving needle which reciprocates continuously between an outside position and an inside position is operative to loop the plastics monofilament yarn around a former for forming coupling members, a row thereof being formed continuously from the latter yarn, the coupling members of such row each comprising a coupling head and connected arms which form a coupling loop and being joined together by connecting parts. A kinking former is used which is in cross-section substantially rectangular, has a thickness of from 10 to 20% less then the diameter of the plastics monofilament yarn, has a rounded part for kinking extending lengthwise on the coupling-head side and is of a width greater than its thickness by a factor of approximately from 1.75 to 3, the tension of the plastics monofilament yarn infed to the weaving station is adjusted in dependence upon the diameter of such yarn. The outside position of the weaving needle is such as to produce an increase in the tension of the plastics monofilament yarn of approximately from 1.5 to 3 times, the latter yarn bearing on the former against this tension.

REFERENCES:
patent: 4127147 (1978-11-01), Frohlich
patent: 4149569 (1979-04-01), Frohlich
patent: 4181159 (1980-01-01), Frohlich et al.
patent: 4682635 (1987-07-01), Ofusa et al.

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