Method of forming latent-contractable elastomeric composite yarn

Details Method of forming latent-contractable elastomeric composite yarn Method of forming latent-contractable elastomeric composite yarn

1983-10-06

1985-11-19

Anderson, Philip

Plastic and nonmetallic article shaping or treating: processes

With twining, plying, braiding, or textile fabric formation

57225, 264176F, 528272, 528289, D02G 302

Patent

active

045541213

ABSTRACT:
This invention relates to a process for forming composite yarns comprising an elastic filament and at least one relatively inelastic filament, which process comprises entangling a latent-contractable elastomer producing polymer filament with a relatively inelastic filament while the latent-contractable filament is relatively unelongated (less than tension maintained 100% elongation) or preferably substantially unelongated (merely taut) to produce a composite yarn which can be formed into a yarn package with minimum stored energy compared to conventional elastomeric yarn packages and which yarn can be processed (e.g., knitted or woven) into goods on equipment normally employed for non-elastic fiber processing; and yet which composite yarn upon actuation of the latent contraction within the polymeric filament provides a composite yarn which is elastic.

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