Patent ID: 6900294

Claim:
A reactive dye of the formula (1) wherein Y is a heterocyclic reactive group of the formula (2) or (3) wherein X 1 to X 3 are independently hydrogen, cyano or halogen, with the proviso that at least one of X 1 to X 3 is halogen, X 4 is fluorine or X 5 , Xs is a group of the general formula (4) wherein R 1 is hydrogen, alkyl or aryl; B is alkylene, arylene or arylalkylene, and B alkylene is optionally interrupt by an oxygen atom; and R 2 is an SO 2 CH 2 CH 2 Z or SO 2 CH═CH 2 radical, wherein Z is an alkali-eliminable moiety; n is 0 or 1; and M is hydrogen, ammonium, an alkali metal or the equivalent of an alkaline earth metal.