Method and apparatus for deregistering multi-filament tow and pr

Details Method and apparatus for deregistering multi-filament tow and pr Method and apparatus for deregistering multi-filament tow and pr

1993-08-10

1995-06-06

Ryan, Patrick J.

Stock material or miscellaneous articles

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

Staple length fiber

428359, 428364, 428369, 428395, D02G 302, D02G 324

Patent

active

054221803

ABSTRACT:
A method and apparatus for deregistering drawn crimped nylon multifilament tow includes the steps of stretching the tow under constant controlled tension at a temperature below the glass transition temperature of the nylon. The apparatus includes means for sensing the tension of the tow between the feed and draw sections of a stretching device and producing a signal representative of the tension sensed and a controller for changing the speed of the draw section actuated by said signal.

REFERENCES:
patent: 2581922 (1952-01-01), Spencer
patent: 3143784 (1964-08-01), Scott
patent: 3271943 (1966-09-01), Williams, Jr.
patent: 3465399 (1969-09-01), Sokolowski et al.
patent: 3549741 (1970-12-01), Caison et al.
patent: 4069363 (1978-01-01), Segraves et al.
patent: 4404718 (1983-09-01), Tajiri et al.
patent: 4501710 (1985-02-01), Abbott et al.

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