Process for the spin-dyeing of polymers or copolymers of acrylon

Details Process for the spin-dyeing of polymers or copolymers of acrylon Process for the spin-dyeing of polymers or copolymers of acrylon

1974-11-26

1977-04-26

Lieberman, Allan

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

8162S, 260 308DS, 260 326N, 264 78, 264182, C08K 500, C08L 3320, D01F 106

Patent

active

040200370

ABSTRACT:
The novel improved process of the invention for spin-dyeing of acid-modified polymers or copolymers of acrylonitrile with basic dyestuffs wherein the spinning solutions of the polymers contain the basic dyestuffs in form of their free dyestuff bases as anhydro or carbinol bases is conducted with completely transparent spinning solutions avoiding clogging and mechanical abrasion of the spinning nozzles and yields filaments and fibers which do not show matting effects but have a high tinctorial strength and good and improved fastnesses to rubbing, to light and to wet-processing.

REFERENCES:
patent: 3242243 (1966-03-01), Knudsen
patent: 3253880 (1966-05-01), Lawson et al.
patent: 3402014 (1968-09-01), Ucci
patent: 3575944 (1971-04-01), Stroh
"Chemistry of Synthetic Dyes," Venkataramen, vol. II, 1952, pp. 708 and 709.
Kirk-Othmer, "Encyclopedia of Chemical Technology," 2nd Edition, vol. 20, p. 694.
Burnthall, American Dyestuff Reporter, Sept. 2, 1963, p. 35.

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