Process for preparing acrylic filaments and fibers

Details Process for preparing acrylic filaments and fibers Process for preparing acrylic filaments and fibers

1983-03-07

1985-03-26

Czaja, Donald

Plastic and nonmetallic article shaping or treating: processes

With incorporating dye susceptible material or dyeing workpiece

81155, 81156, 428253, 264182, 264184, 264206, D01F 618, D01F 600

Patent

active

045072574

ABSTRACT:
The invention relates to a process for preparing wet- or dry-spun filaments and fibers of polymers which consist to more than 50% by weight of acrylonitrile units and which are continually treated with an aqueous solution containing copper(I) ions during the fiber production process but before a first heat treatment above 100.degree. C. and the copper content in the fibrous material is fixed by heating to above 60.degree. C., preferably to above 100.degree. C. The filaments and fibers thus obtained can be dyed with acid dyestuffs, have bactericidal properties, and can be subjected to accelerated pre-oxidation.

REFERENCES:
patent: 3242000 (1966-03-01), Lynch
patent: 3273956 (1966-09-01), Fujita et al.
patent: 3281261 (1966-10-01), Lynch
patent: 3406145 (1968-10-01), Hennes
patent: 3468841 (1969-09-01), Corbiere et al.
patent: 3681004 (1972-08-01), Torrance
patent: 3733386 (1973-05-01), Shimoda et al.
patent: 3917776 (1975-11-01), Sato et al.
patent: 4267233 (1981-05-01), Tanaka et al.
patent: 4378226 (1983-03-01), Tomibe et al.

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