| abstract |
Dye mixtures which are characterized in that they have at least two reactive dyes of the formula contain, wherein A1 and A₂ the rest of a monoazo, polyazo, metal complex azo, anthraquinone, phthalocyanine, formazan, azomethine, dioxazin, phenazin, stilbene, triphenylmethane, xanthene, thioxanthone, nitroaryl , Naphthoquinone, pyrenequinone or perylene tetracarbimide dye are R₁, R₂, R₃ and R₄ are independently hydrogen or optionally substituted C₁-C₄ alkyl, B is an aliphatic bridge member, Y₁ and Y₂ independently of one another represent halogen or carboxypyridinium, and in at least one of the reactive dyes of the formula (1) the radicals A₁ and A₂ have the same meanings, are particularly suitable for dyeing or printing hydroxyl-containing or nitrogen-containing fiber materials. Colorings with good fastness properties and a high dyeing yield are obtained. |