Crimped thermoplastic fibers

Details Crimped thermoplastic fibers Crimped thermoplastic fibers

1977-05-25

1980-09-09

Ball, Michael W.

Stock material or miscellaneous articles

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

Rod, strand, filament or fiber

28267, 428375, 428394, D02G 332, D02G 112, D02G 120

Patent

active

042218381

ABSTRACT:
The crimped products are produced having a more permanent bulkiness which resists deterioration during further processing and subsequent use. Such products are disclosed having deposited on the surface of the fibers a thin coating of a finishing agent comprising distearyl dimethyl ammonium chloride. Such products can be produced by crimping in the presence of steam in a crimping zone wherein there are present a defined first region of low but increasing steam pressure, a defined second region of substantially constant, relatively high steam pressure, and a defined third region of decreasing steam pressure.

REFERENCES:
patent: 2575781 (1951-11-01), Barach
patent: 2854701 (1958-10-01), Rainard
patent: 2865080 (1958-12-01), Hentschel
patent: 3095373 (1963-06-01), Bloomfield
patent: 3154489 (1964-10-01), Du Brow et al.
patent: 3329609 (1967-07-01), Bloomfield
patent: 3340585 (1967-09-01), Buckley et al.
patent: 3663675 (1972-05-01), Fukuma et al.
patent: 3686848 (1972-08-01), Miller et al.
patent: 3800374 (1974-04-01), Ozawa et al.

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