Patent ID: 7887602

Claim:
A reactive dye of formula wherein B is an aliphatic bridging member, R 1 is C 1 -C 4 alkyl, halogen or an —SO 2 —Z radical, R 2 and R 3 are each independently of the other C 1 -C 4 alkoxy, R 4 , R 5 and R 6 are each independently of the others hydrogen or unsubstituted or substituted C 1 -C 4 alkyl, k and q are each independently of the other the number 0 or 1, p is the number 0, 1 or 2, X 1 and X 2 are each independently of the other halogen, and T is halogen, a non-fibre-reactive substituent or a fibre-reactive radical of formula wherein (R 7 ) 0-2 denotes from 0 to 2 identical or different substituents from the group halogen, C 1 -C 4 alkyl, C 1 -C 4 alkoxy and sulfo, Z is vinyl or a —CH 2 —CH 2 —U radical and U is a group that is removable under alkaline conditions, Q is a —CH(Hal)-CH 2 -Hal or —C(Hal)=CH 2 group and Hal is halogen, or T is a radical of formula wherein R 1 , R 2 , R 3 , R 4 , k, p and q are each as defined above.