Fiber process

Details Fiber process Fiber process

1977-09-09

1978-09-26

Rimrodt, Louis K.

Textiles: manufacturing

Thread finishing

Surface modification of running length

28267, D02G 112

Patent

active

041159071

ABSTRACT:
A process and apparatus for the continuous production of heat-set, crimped, thermoplastic filaments by passing a tow of filaments through a stuffer box crimper and then a heat setting device attached to the exit of the crimper. The tow in the crimping chamber is cooled to a temperature not exceeding 100.degree. C in order to separate the heat setting and crimping processes, whereby the crimp ratio may be varied by adjusting the temperature of the tow in the crimping chamber.

REFERENCES:
patent: 2575839 (1951-11-01), Rainard
patent: 3108352 (1963-10-01), Haigler et al.
patent: 3174208 (1965-03-01), Saito et al.
patent: 3975807 (1976-08-01), Bramley et al.

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