Sliding clasp fastener

Details Sliding clasp fastener Sliding clasp fastener

A - Human Necessities

44

B

24/47

A44B 19/02 (2006.01) A44B 19/34 (2006.01)

Patent

CA 1042635

ABSTRACT OF THE DISCLOSURE A slide-fastener stringer foundation is formed of supporting tapes which are warp-knit. Two different types of weft yarns are used, one being textured and of limited shrinkability and the other being highly shrinkable. The tape so knitted is heat-shrunk so as to cause the shrinkable yarn to form the textured yarn into a mass of bulges or loops on the surfaces the tape, thereby imparting to this tape a very smooth texture.

210824

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