Water-soluble formazan colorant containing reactive group and me

Details Water-soluble formazan colorant containing reactive group and me Water-soluble formazan colorant containing reactive group and me

1988-08-15

1991-01-15

Higel, Floyd D.

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

Organic compounds

Azo

534612, 534652, 534887, 552245, C09B 62503, D06P 1384

Patent

active

049855450

ABSTRACT:
A water-soluble formazan colorant, which is represented by the following general formula (I) in the form of free acid: ##STR1## (where: R represents a hydrogen atom or a lower alkyl group which may be substituted; X denotes a phenylene group or a naphthylene group which may be substituted; Y indicates --SO.sub.2 CH.dbd.CH.sub.2 group or --SO.sub.2 C.sub.2 H.sub.4 W group wherein W represents a group to be eliminated by the action of alkali; and Z designates a lower alkylamino group, a phenylamino group or a naphthylamino group, having one or two water-soluble groups selected from the group consisting of hydroxyl group, sulfonic acid group and carboxylic acid group); and a method of dyeing by use of the colorant. The colorant is used to dye cellulosic and nitrogen-containing fibers in blue shades with excellent reactive fixing properties.

REFERENCES:
patent: 3910877 (1975-10-01), Prichard et al.
patent: 4720542 (1988-01-01), Omura et al.
Mukerjee et al., Chemical Abstracts, vol. 96, No. 65524a, (1982).
Himeno, Chemical Abstracts, vol. 110, No. 11652h, (1989).
Omura, Chemical Abstracts, vol. 108, No. 39638n, (1988).

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