Bisazo brown reactive dye

Details Bisazo brown reactive dye Bisazo brown reactive dye

1981-05-26

1987-05-05

Higel, Floyd D.

Organic compounds -- part of the class 532-570 series

Organic compounds

Azo

534582, 534598, 534617, 534642, 534829, 534832, 534833, 534840, 534850, 534856, 534881, C09B 6209, C09B 62533, D06P 1382, D06P 1384

Patent

active

046634401

ABSTRACT:
A brown reactive dye represented by a free acid of the formula, ##STR1## wherein R is a hydrogen atom or a C.sub.1 to C.sub.4 alkyl group, X is --SO.sub.2 CH.sub.2 CH.sub.2 Cl, --SO.sub.2 CH.dbd.CH.sub.2, --SO.sub.2 CH.sub.2 CH.sub.2 OSO.sub.3 H or --SO.sub.2 CH.sub.2 CH.sub.2 OPO.sub.3 H.sub.2, rings A, B and C are each a benzene or naphthalene ring which may have other substituent, m is 0 to 3 and n is 0 to 1.
This dye is suitable for dyeing cellulose fibers brown to afford dyeings superior in fastnesses, acid stability, build-up property and level dyeing property.

REFERENCES:
patent: 3316239 (1967-04-01), Riat et al.
patent: 3429870 (1969-02-01), Carati et al.
patent: 3627749 (1971-12-01), Ackermann
patent: 3843623 (1974-10-01), Siegel

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