Patent ID: 7129336

Claim:
Reactive dyes of the general formula (1) where Y is a heterocyclic reactive group of the general formula (2) or (3) where X 1 to X 3 are independently hydrogen, cyano or halogen, with the proviso that at least one of X 2 and X 3 is halogen, X 4 is chlorine or fluorine, X 5 is a group of the general formula (4) where R 1 is hydrogen, alkyl, alkoxy, sulfo or chlorine and R 2 is a radical —SO 2 CH═CH 2 or —SO 2 CH 2 CH 2 Z, where Z is a grouping which can be eliminated by the action of alkali; n is 0, 1 or 2, B is —CH 2 —SO 3 M or hydrogen, and M is hydrogen, ammonium, an alkali metal or the equivalent of an alkaline earth metal.