Method of making a composite elastic yarn

Details Method of making a composite elastic yarn Method of making a composite elastic yarn

1994-04-21

1996-01-09

Hail, III, Joseph J.

Textiles: spinning, twisting, and twining

Apparatus and processes

Twist setting

D02G 104

Patent

active

054818613

ABSTRACT:
A method of making a composite yarn comprising a spandex core yarn and a thermoplastic wrapping yarn in which both yarns are free to extend and contract freely one relative to the other while retaining sufficient cohesion to prevent their separation. The thermoplastics wrapping yarn is polyamide in a flat continuous filament. The wrapping yarn is wrapped in a series of alternating S and Z twists around the spandex core yarn, loops of the wrapping yarn projecting laterally as at positions where a change in the direction of twist occurs.

REFERENCES:
patent: 3078654 (1963-02-01), Marshall
patent: 3540204 (1970-11-01), Tanaka et al.
patent: 3691750 (1972-09-01), Waters
patent: 3771307 (1973-11-01), Petrille
patent: 3807162 (1974-04-01), Tsujita et al.
patent: 3921382 (1975-11-01), Tsujita et al.
patent: 3938314 (1976-02-01), Trammell
patent: 3940917 (1976-03-01), Strachan
patent: 3968638 (1976-07-01), Norton et al.
patent: 3971202 (1976-07-01), Windley
patent: 3973386 (1976-08-01), Gorrafa
patent: 3988883 (1976-11-01), Sze
patent: 3991548 (1976-11-01), Toronyi et al.
patent: 4051660 (1977-10-01), Griset, Jr.
patent: 4155214 (1979-05-01), Mirhej
patent: 4222223 (1980-09-01), Nelson
patent: 4226079 (1980-10-01), Mountney et al.
patent: 4287714 (1981-09-01), Takai
patent: 4296597 (1981-10-01), Tani et al.
patent: 4523428 (1985-06-01), Negishi et al.
patent: 4648240 (1987-03-01), Hallsworth et al.
patent: 4674273 (1987-06-01), Clements et al.
patent: 4712366 (1987-12-01), Tsujimoto et al.
patent: 4773206 (1988-09-01), Kojima et al.
patent: 4870813 (1989-10-01), Nelson
Journal of the Textile Institute, vol. 69, No. 9, Sep., 1978: The Dynamics of the False-Twist Process, pp. 269-286.

Affiliated with

Also associated with

Rating

Method of making a composite elastic yarn does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method of making a composite elastic yarn, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of making a composite elastic yarn will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1295693