Patent ID: 7704287

Claim:
A reactive red dye composition comprising: (A) 60% to 90% by weight of a reactive azo dye of the following formula (I), wherein W is H, —CH 3 , —CH 2 SO 3 H, —CH 2 CH 2 SO 3 H, —CH 2 COOH or —CH 2 CH 2 COOH; D 1 and D 2 each independently is the following (D-a) group, wherein (R 1 ) 0˜3 each independently is 0 to 3 substituents, which can be the same or different, selected from the group consisting of: halogen, carboxyl, sulfo, —C 1-4 alkyl, and —C 1-4 alkoxyl; Q is —NH—CO—CH(Hal)—CH 2 (Hal), —NH—CO—C(Hal)═CH 2 or —SO 2 —Y, wherein Y is —CH 2 CH 2 OSO 3 H, —CH═CH 2 or —CH 2 CH 2 U, U is a leaving group which is eliminable by a base; Hal is halogen; and (B) 40% to 10% by weight of a reactive azo dye of the following formula (II), wherein R is H or carboxyl group; X is H or wherein R 2 and R 3 each independently is selected from the group consisting of: H, methyl, —OCH 3 , —OC 2 H 5 , —SO 3 H, —Cl and —SO 2 Y, wherein Y is defined the same as the above; Z is H, —CH 2 SO 3 H, —CH 2 CH 2 SO 3 H, —CH 2 COOH or —CH 2 CH 2 COOH; D 3 and D 4 each independently is the following (D-a) group, (R 1 ) 0˜3 and Q are defined the same as the above.