Abstract: A method of dyeing or printing textile fiber materials, which comprises bringing the fiber material into contact with (a) at least one reactive dye containing at least one anionic group, (b) at least one compound which reduces the ionic character of the anionic group, and (c) at least one nucleophilic compound, yields dyeings or prints having deep hues and very good fastness properties.

Abstract: A method of dyeing or printing synthetic polyamide fiber materials, wherein (a) the fiber material is dyed or printed with at least one reactive dye, and (b) the dyed or printed fiber material is subjected to after-treatment with a reducing agent, the fiber material not being treated with polycondensable or polymerizable compounds for fixing the dye on the fiber, results in dyeings and printings that are distinguished by good fastness properties.

Abstract: Reactive dyes of formula (1): wherein R1, is optionally substituted C1-C4 alkyl, R2 is halogen, C1-C4 alkyl, C1-C4 alkoxy or sulfo, Z1 is a radical of formula —SO2—Y (2a), —CO—NH—(CH2)K—SO2—Y (2b), —NH—CO—CH(Hal)—CH2—Hal (2c) —NH—CO—C(Hal)?CH2 or (2d) wherein Hal is chlorine or bromine, Y is vinyl or a radical —CH2CH2—U and U is a group removable under alkaline conditions, k is the number 2, 3, 4, 5 or 6, n is the number 0, 1 or 2 and m is the number 0 or 1, are suitable for dyeing or printing cellulose-containing fibre materials, preferably natural or synthetic polyamide fibre materials, and produce, with a high colour yield, dyeings and prints having good fastness properties

Abstract: A method of dyeing or printing textile fibre materials, which comprises bringing the fibre material into contact with (a) at least one reactive dye containing at least one anionic group, (b) at least one compound which reduces the ionic character of the anionic group, and (c) at least one nucleophilic compound, yields dyeings or prints having deep hues and very good fastness properties.

Abstract: Method for the trichromatic dyeing or printing of synthetic polyamide fiber material, wherein at least one red reactive dye of formula is used together with at least one of the yellow or orange reactive dyes of formulae and at least one blue reactive dye of formula in which formulae the variables are as defined in claim 1, which method is distinguished by a uniform color build-up and a very good combinability.

Abstract: Reactive dyes of formula wherein R1 is halogen, C1-C4alkyl, C1-C4alkoxy, C2-C4alkanoylamino, &agr;,&bgr;-dihalopropionylamino or &agr;-haloacryloylamino, X is halogen, n is the number 0, 1 or 2, and V is a radical of formula wherein (R2)l denotes l identical or different substituents selected from the group halogen, hydroxy, nitro, sulfo, C1-C4alkyl and C1-C4alkoxy, Y is &agr;,&bgr;-dihalopropionylamino, &agr;-haloacryloylamino or a radical —CONH—(CH2)2-3—SO2—Z and Z is vinyl or a radical —CH2CH2—U and U is a group removable under alkaline conditions, m is the number 0 or 1, and l is the number 0, 1, 2 or 3, with the proviso that R1 is not &agr;,&bgr;-dihalopropionylamino or &agr;-haloacryloylamino when V is a radical of formula (2) wherein Y is &agr;,&bgr;-dihalopropionylamino or &agr;-haloacryloylamino, are suitable for the dyeing or printing of cellulosic fiber materials or natural or synthetic polyamide fiber materials, wit