Process for preparing a high strength aramid spun yarn

Details Process for preparing a high strength aramid spun yarn Process for preparing a high strength aramid spun yarn

1984-08-17

1985-10-22

Rimrodt, Louis K.

Textiles: fiber preparation

Stapilizing

Tension breaking

57 2, D01G 108

Patent

active

045479330

ABSTRACT:
High strength, high modulus, continuous filament aromatic polyamide yarns are stretch broken under high tension while being sharply deflected in a lateral direction by mechanical means to provide a sliver which is processed by conventional means to a high strength, high modulus spun yarn. The broken ends of the fibers are highly fibrillated to fibrils having lengths of 50-350 times the diameter of the unfibrillated portion of each fiber.

REFERENCES:
patent: 3913176 (1975-10-01), Grossi
patent: 3945188 (1976-03-01), Muller
patent: 4021520 (1977-05-01), Heinrich et al.
patent: 4080778 (1978-03-01), Adams et al.

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