Process for producing acrylic fiber

Plastic and nonmetallic article shaping or treating: processes – Pore forming in situ

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Details

264171, 264182, 428374, 428398, B29D 2700, B29F 310

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active

043472036

ABSTRACT:
An acrylic fiber having linen- or cotton-like feeling, dry feeling, a high hygroscopicity and a high water retentivity, which is characterized in that said fiber is covered on the outside with creases running along the fiber axis, adjacent creases being 0.1 to 5.mu. apart on the average; has in any of its cross-sections two or more macrovoids, 2.mu. or more in major diameter, which extend in the direction of fiber axis; and said fiber has 30 to 150 microcrimps per 25 mm of fiber length. A method for producing such a fiber is also disclosed.

REFERENCES:
patent: 3639204 (1972-02-01), Ohki et al.
patent: 3885013 (1975-05-01), Sato
patent: 3975486 (1976-08-01), Sekiguchi et al.
patent: 3976737 (1976-08-01), Sekiguchi et al.
"Studies on Acrylic Fibers", by Takeda, Kogyo Kagaku Zasshi 67, 630-632, (1964).

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