A - Human Necessities – 44 – B
Patent
A - Human Necessities
44
B
24/47
A44B 19/02 (2006.01) A44B 19/40 (2006.01) D05B 93/00 (2006.01)
Patent
CA 1142331
ABSTRACT OF THE DISCLOSURE A slide fastener stringer includes a stringer tape and a series of fastener elements sewn to the stringer tape on one of the opposite surfaces thereof along its one longitudinal edge by means of double locked stitches composed of a needle thread and a looper thread. The needle thread includes a thermoplastic monofilament yarn, and the looper thread includes a spun or multifilament yarn. The stitching has been done from the tape side of the slide fastener stringer. Loops of the looper thread hardly project from the topmost surface of the needle thread loops so that a slider is not likely to wear it out. Each of the needle thread has a constricted por- tion which serves to keep the looper thread loops from becoming loose. After stitching of the fastener elements to the tape, the thermoplastic monofilamentary needle thread has been heat set to suitably shrink and then become dimensionally stable. The invention provides a stringer enabling a very smooth threading of a slider.
348534
Yoshida Hiroshi
Gowling Lafleur Henderson Llp
Yoshida Kogyo K.k.
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