Process for dichromatic or trichromatic dyeing or printing

摘要

Process for dichromatic or trichromatic dyeing or printing of natural or synthetic polyamide fiber material, which comprises using at least one blue-dyeing fiber-reactive anthraquinone dye of the formula in which R1 and R2 independently of one another are hydrogen or substituted or unsubstituted C1-C12alkyl, X1 is halogen, B1 is an organic bridge member and V1 is an aliphatic or aromatic amine containing a fibre-reactive group, together with at least one fiber-reactive sulfo group containing yellow- or orange-dyeing dye or together with at least one fiber-reactive sulfo group containing red-dyeing dye. Level dyeings with good fastness properties are obtained.