Water-soluble fiber-reactive dyes, processes for their preparation, and their use

A dye corresponding to the formula (1)

• Fb--Z.sub.n ( 1)
• in which:
• Fb is the radical of a sulfo group containing monoazo dye of the formula (a-1)
• D.sup.1 --N.dbd.N--K.sup.2 -- (a-1)
• in which D.sup.1 is a substituted or unsubstituted phenyl or naphthyl radical, and K.sup.2 is the substituted or unsubstituted residue of an aniline, aminonaphthalene, acetic acid (aminoaryl)amide or 1-aminophenyl-pyrazolone coupling component, or
• Fb is the radical of a sulfo group containing mono-or disazo dye conforming to the formulae (a-2) to (a-5)
• --D.sup.2 --N.dbd.N--(E--N.dbd.N).sub.v --K.sup.1 (a- 2)
• --D.sup.2 --N.dbd.N--(E--N.dbd.N).sub.v --K.sup.2 -- (a-3)
• D.sup.1 --N.dbd.N--K.sup.0 --N.dbd.N--D.sup.2 -- (a-4)
• --D.sup.1 --N.dbd.N--K.sup.0 --N.dbd.N--D.sup.2 -- (a-5)
• in which D.sup.1 and K.sup.2 are as previously defined, v is zero or 1, E is the substituted or unsubstituted phenyl or naphthyl radical of a middle component, D.sup.2 is the substituted or unsubstituted diaminophenyl or diaminonaphthyl radical of a diazo component and K.sup.1 is the substituted or unsubstituted phenyl, naphthyl, pyrazolone, 6-hydroxy-pyrid-2-one or acetoacetic acid arylamide radical of a coupling component, and K.sup.0 is the radical of a bivalent coupling component having a substituted or unsubstituted naphthalene nucleus, provided that D.sup.1, D.sup.2, and K.sup.0 together contain at least one sulfo group, or
• Fb is the radical of a sulfo-containing heavy metal complex mono-, dis- or trisazo, azomethine, phenazine, stilbene, triphenylmethane, xanthene, thioxanthine, nitroaryl, naphthoquinone, pyrenequinone, perylenetetracarbimide, formazan, phthalocyanine, or triphendioxazine dye, and
• with respect to formulae a-1 through a-5 and the said radicals D.sup.1, D.sup.2, K.sup.1, K.sup.2, K.sup.0 and E, when substituted, these formulae or radicals contain, additionally to sulfo, at least one of the following substituents:
• alkyl of 1 to 4 carbon atoms;
• alkoxy of 1 to 4 carbon atoms;
• alkanoylamino of 2 to 5 carbon atoms;
• benzoylamino unsubstituted or substituted by substituents selected from sulfo, carboxy, methyl, ethyl, methoxy, ethoxy and chlorine;
• primary and mono- or disubstituted amino groups, where the substituents are selected from alkyl of 1 to 4 carbon atoms and phenyl, where the alkyls are unsubstituted or substituted by phenyl, sulfophenyl, hydroxy, sulfato, sulfo or carboxy and the phenyl groups are unsubstituted or substituted by substituents selected from chlorine, sulfo, carboxy, methyl and methoxy;
• alkoxycarbonyl having an alkyl of 1 to 4 carbon atoms;
• alkylsulfonyl of 1 to 4 carbon atoms;
• trifluoromethyl;
• nitro;
• cyano;
• halogen;
• carbamoyl;
• carbamoyl mono- or disubstituted by alkyl of 1 to 4 carbon atoms, where the alkyls are unsubstituted or substituted by hydroxy, sulfato, sulfo, carboxy, phenyl or sulfophenyl;
• sulfamoyl;
• sulfamoyl mono- or disubstituted by alkyl of 1 to 4 carbon atoms, the alkyls being unsubstituted or substituted by hydroxy, sulfato, sulfo, carboxy, phenyl or sulfophenyl;
• N-phenyl-N-alkysulfamoyl having an alkyl of 1 to 4 carbon atoms, the alkyls being unsubstituted or substituted by hydroxy, sulfato, sulfo, carboxy, phenyl or sulfophenyl;
• N-phenylsulfamoyl;
• ureido;
• carboxy;
• sulfomethyl or from one to two fiber-reactive groups of the formula Y--SO.sub.2 --W.sup.0 -- in which W.sup.0 is an alkylene of 1 to 4 carbon atoms or is --N(CH.sub.3 -- or --N(C.sub.2 H.sub.5)-- or --(C.sub.2 -C.sub.4 -alkylene)--NH-- or a direct covalent bond and Y is vinyl or is .beta.-sulfatoethyl, .beta.-thiosulfatoethyl, .beta.-phosphatoethyl, .beta.-(C.sub.2 -C.sub.5 -alkanoxyloxy) ethyl, .beta.-benzoyloxyethyl, .beta.-(sulfobenzoyloxy)ethyl, .beta.-(p-toluenesulfonyloxy) ethyl or .beta.-haloethyl;
• n is the number 1, 2 or 3;
• Z is a group of the formula (2) ##STR53## in which Q is a covalent bond or a group of the formula ##STR54## in which R is hydrogen or alkyl of 1 to 4 carbon atoms optimally substituted by halogen, hydroxy, cyano, alkoxy of 1 to 4 carbon atoms, alkoxycarbonyl of 2 to 5 carbon atoms, carboxy, sulfamoyl, sulfo, sulfato or phosphato,
• W is a covalent bond of a bridging member, except that Q is necessarily a covalent bond if W is a covalent bond, and the amino groups --N(R.sup.A)-- and --N(R)-- are bonded to one carbon atom of the bridging member W or to one carbon atom of a substituent of W, and
• R is hydrogen, or is alkyl of 1 to 4 carbon atoms optionally substituted by halogen, hydroxy, cyano, alkoxy of 1 to 4 carbon atoms, alkoxycarbonyl of 2 to 5 carbon atoms, carboxy, sulfamoyl, sulfo, sulfato or phosphate.