D - Textiles – Paper – 02 – G
Patent
D - Textiles, Paper
02
G
28/34
D02G 3/32 (2006.01) D02J 1/08 (2006.01)
Patent
CA 1040404
REVISED TEXT FOR FOREIGN FILING Strachan HF-0003 U.S.S.N.: 503,500 Filed: September 5, 1974 Title: Product and Process Abstract A composite yarn, which is bulky when relaxed and elongates to at least 100 percent greater length under tension, with quick recovery of the relaxed condition when tension is removed, is composed of uncrimped elastic yarn and at least five relatively inelastic continuous fila- ments entangled about the elastic yarn to provide protec- tion and desirable textile properties. The composite yarn can be made at unusually high speeds by entangling the relatively inelastic filaments about stretched elastic yarn with jets of high velocity fluid impinged at an angle of 90° ? 45° to the yarn axis, using a filament feed rate which provides substantially no net underfeed or overfeed and which, hence, avoids formation of filament loops in the stretched yarn.
235017
E.i. Du Pont de Nemours And Company
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