Method for heating crimped fibers and product thereof

Details Method for heating crimped fibers and product thereof Method for heating crimped fibers and product thereof

1991-04-11

1993-02-23

Lesmes, George F.

Textiles: manufacturing

Thread finishing

Surface modification of running length

19 661, 28263, 428399, D02G 112, D02G 100, D01G 3700

Patent

active

051878453

ABSTRACT:
A method of producing crimped tow by continuously feeding a tow against an adjustable counter pressure means; the tow is maintained at an average predetermined thickness and steam enters the chamber and is exhausted from the chamber in a manner to provide uniform heating of the tow to provide a fiber that is uniformly annealed as determined by measuring light reflectance for yarn dyed with a structural sensitive Milling Blue "B" dye or shrinkage uniformity determined by thermal analysis.

REFERENCES:
patent: Re23824 (1954-05-01), Rainard
patent: 2575781 (1951-11-01), Barach
patent: 3160941 (1964-12-01), Williamson
patent: 3305897 (1967-02-01), Meibohm
patent: 3859695 (1975-01-01), Erickson
patent: 3911539 (1975-10-01), Hughes et al.
patent: 3946469 (1976-03-01), Benson
patent: 3965548 (1976-06-01), James, II et al.
patent: 3975807 (1976-08-01), Bramley et al.
patent: 4115907 (1978-09-01), Lawson et al.
patent: 4221838 (1980-09-01), Hughes et al.
patent: 4268940 (1981-05-01), Kuroda et al.
patent: 4343069 (1982-08-01), McLuskie et al.
"Modified Stuffer Box Crimper", Product Licensing Index, Jun. 1970, p. 47.

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