Patent ID: 7259259

Claim:
A reactive dye of formula wherein R 1 is optionally substituted C 1 -C 4 alkyl, R 2 is halogen, C 1 -C 4 alkyl, C 1 -C 4 alkoxy or sulfo, Z 1 is a radical of formula —SO 2 —Y (2a), —CO—NH—(CH 2 ) k —SO 2 —Y (2b), —NH—CO—CH(Hal)—CH 2 —Hal (2c) or —NH—CO—C(Hal)═CH 2 (2d) wherein Hal is chlorine or bromine, Y is vinyl or a radical —CH 2 CH 2 —U and U is a group removable under alkaline conditions, k is the number 2, 3, 4, 5 or 6, n is the number 0, 1 or 2 and m is the number 0 or 1.