Self-crimping polyester yarn

Details Self-crimping polyester yarn Self-crimping polyester yarn

1985-09-26

1987-04-28

Kendell, Lorraine T.

Stock material or miscellaneous articles

Coated or structually defined flake, particle, cell, strand,...

Rod, strand, filament or fiber

428373, 428397, 428399, 428374, D02G 300

Patent

active

046614044

ABSTRACT:
Polyester polymer is extruded at different speeds through groups of parallel closely spaced orifices at relatively high spinning speeds. The resulting filament have high and low shrinkage regions substantially regularly spaced apart along their length. A yarn including a number of these filaments spontaneously develops crimp when relaxed.

REFERENCES:
patent: 3914488 (1975-10-01), Gorrafa
patent: 4489543 (1984-12-01), Bromley et al.

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