Black dye mixtures of fiber-reactive azo dyes and use thereof fo

Bleaching and dyeing; fluid treatment and chemical modification – Reactive dye composition – process – or product – Thiosulfato group containing dye

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Details

8549, 8641, 8918, 8924, C09B 6724, D06P 1384, D06P 310, D06P 366

Patent

active

061065803

ABSTRACT:
A dye mixture comprising one or more disazo dyes composed of 1-amino-3,6-disulfo-8-naphthol as the coupling component and of two diazo components of the aniline series containing each a fiber-reactive group of the vinylsulfone series, one or more monoazo dyes composed of a sulfo-substituted 2-amino-naphthalene as coupling component and a diazo component of the aniline series containing a fiber-reactive group of the vinylsulfone series, and optionally one or two monoazo dyes with 1-amino-3,6-disulfo-8-naphthol as a coupling component to which is coupled in the ortho-position to the amino group a diazo component of the aniline series substituted by a fiber-reactive group of the vinylsulfone series. The dye mixtures yield on hydroxy- and/or carboxamido-containing fiber materials, such as cellulose fibers, in particular cotton, or on, for example, wool and synthetic polyamide fibers, deep black dyeings.

REFERENCES:
patent: 5445654 (1995-08-01), Hussong et al.
patent: 5611821 (1997-03-01), Huang et al.

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