Title: Warp-knitted tape for slide fasteners

Abstract: A slide fastener tape of a warp-knitted structure is provided with a web portion and a marginal edge portion extending lengthwise thereof, both portions being interconnected by a relatively strong transversely extending lapping threads. A combination of chain stitches and tricot stitches having alternate closed and open laps is utilized in the formation of the web portion to provide a stable knit structure, while the marginal edge portion is reinforced by double-layer tricot stitches to render this portion uniformly swollen so that the fastener elements can be securely mounted with their legs astride of the swollen edge.

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Inventors: Matsuda, Yoshio (Nyuzen, JA)

Application Number: 524927
Filing Date: 1974-11-18
Publication_date: 1976-12-14
Assignee: Yoshida Kogyo Kabushiki Kaisha (JA)
Primary Class(es): 66/196 24/393, 66/195
Other Classes:
US Patent Ref:

2652705	Sep, 1953	Weinberg	66/193.
2903775	Sep, 1959	Johns	24/205.
3685474	Aug, 1972	Frohlich et al.	66/195.
3714683	Feb, 1973	Frohlich et al.	66/195.
3757541	Sep, 1973	Frohlich et al.	66/193.
3762002	Oct, 1973	Frohlich et al.	66/195.
3820202	Jun, 1974	Takamatsu	66/195.
3840946	Oct, 1974	Frohlich et al.	66/193.
3848556	Nov, 1974	Terada et al.	66/195.
3849842	Nov, 1974	Yoshida	66/195.
3864946	Feb, 1975	Matsuda	66/193.

Other Refs: 1,216,830

Dec, 1970	UK

Primary Examiner: Kee Chi, James
Assistant Examiner:
Attorney: Bucknam and Archer