Thiazole-azo dyes and the coloration of polyester textile fibers

Details Thiazole-azo dyes and the coloration of polyester textile fibers Thiazole-azo dyes and the coloration of polyester textile fibers

1973-12-07

1976-04-13

Henderson, Jr., Christopher A.

Bleaching and dyeing; fluid treatment and chemical modification

Treatment of hides, skins, feathers and animal tissues

Tanning

260158, D06P 118, C09B 2936

Patent

active

039501302

ABSTRACT:
Azo dyes for dyeing polyester fabric are made by coupling an appropriate diazotized amino heterocyclic base into an .alpha.-(N-alkylanilino)-m-toluene sulfonamide, typified by .alpha.-(N-ethyl anilino)-m-toluene sulfonamide. This class of azo dye, when appropriately dispersed, produces dyeings on aromatic polyester fabrics with excellent substantivity, outstanding sublimation fastness, and good fastness to light. The dyes are applied to polyesters, such as polyethylene terephthalate, by carrier dyeing, pressure dyeing, and thermofixation methods.

REFERENCES:
patent: 3515714 (1970-06-01), Dale
patent: 3516982 (1970-06-01), Dimroth
patent: 3579497 (1971-05-01), Ramanathan
patent: 3639384 (1972-02-01), Weaver
patent: 3640995 (1972-02-01), Weaver
patent: 3642767 (1972-02-01), Hahn
patent: 3685952 (1972-08-01), Renfrew

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