| abstract |
A method of printing cellulosic fibre materials in which the fibre material is brought into contact with reactive dyes of the formula (I) wherein A is the radical of a monoazo, polyazo, metal complex azo, anthraquinone, phthalocyanine, formazan or dioxazine chromophore, R1, R2 and R3 are each independently of the others hydrogen or unsubstituted or substituted C1-C4 alkyl, X1 and X2 are halogen, B is an organic bridging member, T is a reactive radical of the formula (II) R4 is hydrogen, C1-C4alkyl unsubstituted or substituted by hydroxy, sulfo, sulfato, carboxy or by cyano, or a radical, wherein R5 is a defined hereinbelow, R5 is hydrogen, hydroxy, sulfo, sulfato, carboxy, cyano, halogen, C1-C4alkoxycarbonyl, C1-C4alkanoyloxy, carbamoyl or a group SO2-Y, R6 is hydrogen or C1-C4alkyl, alk and alk1 are each independently of the other linear or branched C1-C6alkylene, arylene is an unsubstituted or sulfo-, carboxy-, hydroxy-, C1-C4alkyl-, C1-C4alkoxy- or halo-substituted phenylene or naphthylene radical, Y is vinyl or a radical CH2-CH2-U and U is a leaving group, Y1 is a grop CH(Hal)-CH2(Hal) or C(Hal)=CH2, wherein Hal is chlorine or bromine, W is a group SO2-NR6-, -CONR6- or NR6CO-, wherein R6 is as defined hereinabove, Q is a radical O- or NR6-, wherein R6- is a defined hereinabove, n is the number 0 or 1, and V1 and V2 are each independently of the other N, C-H, C-CI or C-F, and the fixing of the printed fibre material is carried out without an additional fixing process step. The prints obtained are distinguished by brilliant colour shades and good allround properties. |