Self-crimping yarn

Details Self-crimping yarn Self-crimping yarn

1981-12-10

1984-12-25

Petrakes, John

Textiles: spinning, twisting, and twining

Strand structure

Longitudinal variation

57245, 57248, 57905, 264167, 264168, 264171, 264176F, 264177F, 428370, 428371, 428373, 428374, 428399, D02G 324, D02G 118, D01D 522

Patent

active

044895437

ABSTRACT:
Polyester polymer is extruded through converging capillaries at different speeds to merge and form a combined stream. The stream is cooled to form a filament, which is withdrawn at a high speed. A plurality of such filaments are combined into yarn which self-crimps upon heating. In some embodiments, the yarn has a variable denier.

REFERENCES:
patent: 3387327 (1968-06-01), Privott, Jr. et al.
patent: 3497585 (1970-02-01), Chapman et al.
patent: 3700545 (1972-10-01), Matsui et al.
patent: 3744529 (1973-07-01), Jorda et al.
patent: 3852948 (1974-12-01), Ruddell et al.
patent: 4026098 (1977-05-01), Bosley
patent: 4059950 (1977-11-01), Negishi et al.
patent: 4349604 (1982-09-01), Blackmon et al.
patent: 4351147 (1982-09-01), Blackmon et al.

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