Mixtures of water-soluble fiber-reactive dyes and use thereof for dyeing: dioxazine and disazo dyes

A composition of water-soluble fiber-reactive dyes, which contains or substantially comprises one or more dyes which are selected from dyes of the formulae (Ia) and (Ib), and one or more dyes which are selected from dyes of the formulae (IIa), (IIb), (IIc) and (IId), in a ratio of 90:10 to 10:90 parts by weight of dyes (I) and (II):

• ##STR12## in which Z is the vinyl--SO.sub.2 --group or the .beta.-sulfatoethyl--SO.sub.2 --group
• Z' is the vinyl group or the .beta.-sulfatoethyl group,
• R stands for the sulfo group or a sulfonamide group of the formula (III) ##STR13## in which R.sup.8 is a hydrogen atom or a substituted or unsubstituted alkyl group of 1 to 4 carbon atoms, and
• R.sup.9 denotes an alkyl group of 1 to 4 carbon atoms which may be substituted by 1 or 2 substituents selected from sulfato, sulfo, carboxyl and phosphato, or is an aryl group which may be substituted by 1, 2 or 3 substituents selected from sulfo and carboxyl, or is an aryl-substituted alkyl group of 1 to 4 carbon atoms which may be substituted in the aryl radical by 1, 2 or 3 substituents selected from sulfo and carboxyl,
• R.sup.1 is a hydrogen atom or a substituted or unsubstituted alkyl group of 1 to 4 carbon atoms,
• R.sup.2 is an alkyl group of 1 to 4 carbon atoms which may be substituted by 1 or 2 substituents selected from sulfato, sulfo, carboxyl and phosphato, or is an aryl group which may be substituted by 1, 2 or 3 substituents selected from sulfo and carboxyl, or is an aryl-substituted alkyl group of 1 to 4 carbon atoms which may be substituted in the aryl radical by 1, 2 or 3 substituents selected from sulfo and carboxyl,
• R.sup.3 is an alkyl group of 1 to 4 carbon atoms which may be substituted by 1 or 2 substituents selected from sulfato, sulfo, carboxyl and phosphato, or is a phenyl group which is substituted by 1 or 2 substituents selected from sulfo and carboxyl,
• R.sup.4 is a hydrogen atom or a sulfo group, a carboxyl group, an alkyl group of 1 to 4 carbon atoms, an alkoxy group of 1 to 4 carbon atoms or a bromine atom,
• R.sup.5 is a hydrogen atom or a sulfo group, a carboxyl group, an alkyl group of 1 to 4 carbon atoms, an alkoxy group of 1 to 4 carbon atoms or a bromine atom,
• R.sup.6 is an alkyl group of 1 to 4 carbon atoms, a hydroxyl group, a carboxyl group, a sulfo group or a chlorine atom,
• R.sup.7 is a sulfo group, a sulfonamide group conforming to the formula (III) mentioned and defined above or is a carboxyl group,
• n stands for the number 1, 2 or 3
• M is a hydrogen atom or an alkali metal.