An ink composition contains a first dye represented by formula (I)

##STR00001##

and a second dye represented by formula (II).

##STR00002##

A dye mixture comprising at least one dye of formula (formula) and at least one dye of formula (formula), wherein R.sub.1 is hydrogen or C.sub.1-C.sub.4alkyl, R.sub.2 is hydrogen or C.sub.1-C.sub.4alkyl, C.sub.1-C.sub.4alkoxy or sulfo, Q.sub.1 is a fibre-reactive radical of formula —(CH.sub.2).sub.2-3—SO.sub.2—Y.sub.2 (3a) or —(CH.sub.2).sub.2-3—O—(CH.sub.2).sub.2-3—SO.sub.2—Y.sub.3 (3b), Q.sub.2 has the meaning of Q.sub.1, or is hydrogen or C.sub.1-C.sub.4alkyl, X.sub.1 and X.sub.2 are each independently of the other halogen, 3-carboxypyridin-1-yl or 3-carbamoylpyridin-1-yl, Y.sub.1, Y.sub.2 and Y.sub.3 are each independently of the others vinyl or a radical —CH.sub.2—CH.sub.2—U and U is a group removable under alkaline conditions, Z.sub.1 and Z.sub.2 are each independently of the other —S0.sub.2-Y, wherein Y is vinyl or a radical —CH.sub.2—CH.sub.2—U and U is a group removable under alkaline conditions, M is hydrogen, an alkali metal or one equivalent of an alkaline earth metal, k and n are each independently of the other the number 0, 1 or 2, I and q are each independently of the other the number 0 or 1, m is the number 0 or 1, and wherein the diazo component of the dye of formula (1) and the diazo component of the dye of formula (2) each independently of the other are a benzene radical or a naphthyl radical, are suitable especially for the dyeing or printing of cellulosic fibre materials, exhibit a good build-up, a good fixation rate and good washing off properties of the unfixed dyes, and good all-round fastness properties.

##STR00001##

An ink composition contains a first dye represented by formula (I) ##STR00001##
and a second dye represented by formula (II) ##STR00002##

Dye mixtures comprising dyes of formula (I) and (II) process for the production thereof and use of said mixtures.

##STR00001##

The invention relates to mixtures of fiber-reactive Triphendioxazine dyes with other fiber-reactive azo dyes and their use for the dyeing of hydroxyl- and especially carboxamide-containing material in blue and navy shades.

The invention relates to mixtures of fibre-reactive Triphendioxazine dyes with other fibre-reactive azo dyes and their use for the dyeing of hydroxyl- and especially carboxamide-containing material in blue and navy shades.

A dye mixture comprising at least one dye of formula (formula) and at least one dye of formula (formula), wherein R.sub.1 is hydrogen or C.sub.1-C.sub.4alkyl, R.sub.2 is hydrogen or C.sub.1-C.sub.4alkyl, C.sub.1-C.sub.4alkoxy or sulfo, Q.sub.1 is a fibre-reactive radical of formula (CH.sub.2).sub.2- 3SO.sub.2Y.sub.2 (3a) or (CH.sub.2).sub.2-3O(CH.sub.2).sub.2-3SO.sub.2Y.sub.3 (3b), Q.sub.2 has the meaning of Q.sub.1, or is hydrogen or C.sub.1-C.sub.4alkyl, X.sub.1 and X.sub.2 are each independently of the other halogen, 3-carboxypyridin-1-yl or 3-carbamoylpyridin-1-yl, Y.sub.1, Y.sub.2 and Y.sub.3 are each independently of the others vinyl or a radical CH.sub.2CH.sub.2U and U is a group removable under alkaline conditions, Z.sub.1 and Z.sub.2 are each independently of the other S0.sub.2-Y, wherein Y is vinyl or a radical CH.sub.2CH.sub.2U and U is a group removable under alkaline conditions, M is hydrogen, an alkali metal or one equivalent of an alkaline earth metal, k and n are each independently of the other the number 0, 1 or 2, I and q are each independently of the other the number 0 or 1, m is the number 0 or 1, and wherein the diazo component of the dye of formula (1) and the diazo component of the dye of formula (2) each independently of the other are a benzene radical or a naphthyl radical, are suitable especially for the dyeing or printing of cellulosic fibre materials, exhibit a good build-up, a good fixation rate and good washing off properties of the unfixed dyes, and good all-round fastness properties. ##STR00001##

The present invention relates to the field of isomeric mixture of reactive dyes that are suitable for the dyeing or printing of nitrogen-containing or hydroxy-group-containing fibre materials and yield on such materials dyeings or prints having a good build-up behaviour, a high fixation rate, good washing off properties of the unfixed dyes and good all-round fastness properties, as well as a good stability to various dyeing parameters such as a good bath stability. Furthermore, the present invention relates to a process for dyeing or printing of nitrogen-containing or hydroxy-group-containing fibre materials, wherein the isomeric mixture of reactive dyes according to the invention is used. The isometric mixture of the present invention comprises at least an isomer of formula (Ia) and an isomer of formula (Ib). ##STR00001##