Fiber-reactive dyes containing a vinylsulfonylalkylamino- or sulfonyl-arylaminotriazine moiety

A reactive dye of the formula ##STR253## in which D is the radical of a monoazo, polyazo, metal complex azo, anthraquinone, phthalocyanine, formazan, azomethine, dioxazine, phenazine, stilbene, triphenylmethane, xanthene, thioxanthone, nitroaryl, naphthoquinone, pyrenequinone or perylenetetracarbimide dye;

• B.sub.1 and B.sub.2 independently of each other are hydrogen or alkyl having 1 to 4 carbon atoms, which is unsubstituted or substituted by carboxyl, sulfo, cyano or hydroxyl;
• X is fluorine, chlorine, bromine, sulfo, alkylsulfonyl having 1 to 4 C atoms or phenylsulfonyl;
• U is --CO-- or --SO.sub.2 --;
• R is a radical of the formula ##STR254## Z is sulfatoethyl, .beta.-thiosulfatoethyl, .beta.-phosphatoethyl, .beta.-acetoxyethyl, .beta.-halogenoethyl or vinyl;
• alk is a polymethylene radical having 1 to 6 C atoms or its branched isomers;
• Y is hydrogen, chlorine, bromine, fluorine, hydroxyl, sulfato, C.sub.1 -C.sub.4 -alkanoyloxy, cyano, carboxyl, alkoxycarbonyl having 1 to 5 C atoms, carbamoyl or a radical --SO.sub.2 --Z in which Z is defined as above;
• V is hydrogen or an alkyl radical having 1 to 4 C atoms which is unsubstituted or substituted by carboxyl, sulfo, C.sub.1 -C.sub.2 -alkoxy, halogen or hydroxyl;
• or a radical ##STR255## in which Z, alk and Y are as defined above;
• R.sub.1 is hydrogen or C.sub.1-6 -alkyl;
• alk', independently of each other, are polymethylene radicals having 2 to 6 C atoms or their branched isomers;
• n is 1 or 2, m is 1 to 6, p is 1 to 6 and q is 1 to 6;
• where, when U is --SO.sub.2 --, V must not be hydrogen;
• and the benzene or naphthalene radical A is further unsubstituted or substituted by C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkoxy, acetylamino, propionylamino, benzoylamino, amino, N-C.sub.1 -C.sub.4 -alkylamino, phenylamino, N,N-di-.beta.-hydroxyethylamino, N,N-di-.beta.-sulfatoethylamino, sulfobenzylamino, N,N-disulfobenzylamino, C.sub.1 -C.sub.4 -alkoxycarbonyl, C.sub.1 -C.sub.4 -alkylsulfonyl, trifluoromethyl, nitro, cyano, halogen, carbamoyl, N-C.sub.1 -C.sub.4 -alkylcarbamoyl, sulfamoyl, N-C.sub.1 -C.sub.4 -alkylsulfamoyl, N-(.beta.-hydroxyethyl)-sulfamoyl, N,N-di-(.beta.-hydroxyethyl)sulfamoyl, N-phenylsulfamoyl, ureido, hydroxyl, carboxyl, sulfomethyl or sulfo.