Azo dye mixtures and their use

A dye mixture comprising

• (a) a compound of the formula ##STR37## in which K.sub.1 is a naphthyl radical which is unsubstituted or further substituted by hydroxyl, amino, N-C.sub.1 -C.sub.4 alkylamino, C.sub.2 -C.sub.4 alkanoylamino, benzoylamino, sulfo or a radical of the formula --SO.sub.2 --Y,
• Z is the radical of a diazo component of the benzene or naphthalene series which contains at least one fibre-reactive radical of the formula
• --SO.sub.2 --Y (3a),
• --CONH--(CH.sub.2).sub.m --SO.sub.2 --Y (3b),
• --CONH--(CH.sub.2).sub.m1 --O--(CH.sub.2).sub.m --SO.sub.2 --Y(3c),
• --(O).sub.p --(CH.sub.2).sub.q --CONH--(CH.sub.2).sub.m --SO.sub.2 --Y(3d),
• --NH--CO--CHX--CH.sub.2 X (3e) or
• --NH--CO--CX.dbd.CH.sub.2 ( 3f),
• Y is vinyl or a radical --CH.sub.2 --CH.sub.2 --U and U is a leaving group,
• X is chlorine or bromine,
• p is the number 0 or 1 and
• m, m1 and q independently of one another are each an integer from 1 to 6,
• T is chlorine, fluorine, bromine, 3-carboxypyridin-1-yl or 3-carbamoylpyridin-1-yl,
• V is defined independently as T or is a non-reactive radical selected from the group consisting of hydroxyl, C.sub.1 C.sub.4 alkoxy, phenoxy, C.sub.1 -C.sub.4 alkylthio, morpholino and substituted or unsubstituted amino, or is a reactive radical of the formula ##STR38## R.sub.4 is hydrogen, hydroxyl, sulfo, sulfato, carboxyl, cyano, halogen, C.sub.1 -C.sub.4 alkoxycarbonyl, carbamoyl or a group --SO.sub.2 --Y, in which Y is as defined above,
• R.sub.5 is hydrogen, C.sub.1 -C.sub.4 alkyl which is unsubstituted or substituted by hydroxyl, sulfo, sulfato, carboxy or cyano, or a radical ##STR39## in which R.sub.4 and Y are each as defined above, R.sub.6 is hydrogen or C.sub.1 -C.sub.4 alkyl, alk and alk' independently of one another are each C.sub.1 -C.sub.6 alkylene, arylene is a phenylene or naphthylene radical which is unsubstituted or substituted by sulfo, carboxyl, hydroxyl, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy or halogen,
• Y.sub.1 is a group --CHX--CH.sub.2 X or --CX.dbd.CH.sub.2, in which X is as defined above,
• B is a radical --O--or --NR.sub.6 --, in which R.sub.6 is as defined above, and
• t is the number 0 or 1
• (b) a compound of the formula ##STR40## in which R.sub.1 and R.sub.2 independently of one another are each C.sub.1 -C.sub.4 alkyl,
• R.sub.3 is carbamoyl, sulfomethyl or cyano, and
• T.sub.1 is defined independently as above for T,
• V.sub.1 is defined independently as above for V, and
• Z.sub.1 is defined independently as above for Z, and
• c) a compound of the formula ##STR41## in which Y is as defined above.