Method of manufacturing a composite yarn

Details Method of manufacturing a composite yarn Method of manufacturing a composite yarn

1991-12-18

1993-08-24

Hail, III, Joseph J.

Textiles: spinning, twisting, and twining

Apparatus and processes

Twist setting

57208, 57245, D02G 102

Patent

active

052378080

ABSTRACT:
A method of composite yarn formed of a false twist crimped, heat set elastomeric core yarn intermingled with a false twist crimped, substantially heat set partially drawn, non-elastic yarn. The resulting composite yarn is substantially free of alternating "S" and "Z" twists, as well as voids. The composite yarn of the present invention is formed by increasing the number of turns per inch of the false twist and adjusting the operating conditions of the D/Y ratio, draw ratio of the elastic and non-elastic yarns, disc stacking, heat, and the machine speed to achieve a balanced or stable thread line.

REFERENCES:
patent: 3401516 (1968-09-01), Chidaey et al.
patent: 3807162 (1974-04-01), Tsujita et al.
patent: 3921382 (1975-11-01), Tsujita et al.
patent: 3991548 (1976-11-01), Toronyi et al.
patent: 4162607 (1979-07-01), Spivey
patent: 4296597 (1981-10-01), Tani et al.
patent: 4674273 (1987-06-01), Clements et al.
European Patent Application 90305285.0 filed May 16, 1990 (priority May 27, 1989) Applicant -Jones Stroud & Co. pub. Dec. 1990.

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