Patent ID: 6800099
Filing Date: 2004-10-05
Classification: C09B

Abstract:
A dye mixture comprising, components A and B,wherein component (A) is a reactive dye of the formula (A) wherein each of Y1 and Y2, independently, is a vinyl group or a group of the formula â€”CH2CH2Q in which Q is a leaving group removable under alkaline conditions to provide a vinyl group; and, component (B) is at least one reactive dye of the formula (V) wherein:R1 is phenyl group optionally having at least one substituent thereon, the substituents, or each substituent independently, being selected from a C1-4 alkyl group, a C1-4 alkoxy group, a hydroxy group, a carboxyl group, a chlorine atom, a vinyl sulphonyl group, a group SO2CH2CH2Q1 in which Q1 is a leaving group removable under alkaline conditions to provide a vinyl sulphonyl group; or is a naphthyl group optionally having at least one substituent thereon, the substituents, or each substituent independently, being selected from a sulphonic acid group and a salt thereof, a C1-4 alkyl group, a C1-4 alkoxy group, a hydroxy group, a carboxyl group, a chlorine atom, a vinyl sulphonyl group, a group SO2CH2CH2Q1 in which Q1 is a leaving group removable under alkaline conditions to provide a vinyl sulphonyl group; R14 is phenyl group optionally having at least one substituent thereon, the substituents, or each substituent independently, being selected from a C1-4 alkyl group, a C1-4 alkoxy group, a hydroxy group, a vinyl sulphonyl group, a group SO2CH2CH2Q1 in which Q1 is a leaving group removable under alkaline conditions to provide a vinyl sulphonyl group; or is a naphthyl group optionally having at least one substituent thereon, the substituents, or each substituent independently, being selected from a sulphonic acid group and a salt thereof, a C1-4 alkyl group, a C1-4 alkoxy group, a hydroxy group, a vinyl sulphonyl group, a group SO2CH2CH2Q1 in which Q1 is a leaving group removable under alkaline conditions to provide a vinyl sulphonyl group; each of R40 and R41 independently is an aryl group selected from phenyl and naphthyl groups, each of which, independently, is optionally substituted by a vinyl sulphonyl group, a group SO2CH2CH2Q1 in which Q1 is a leaving group removable under alkaline conditions to provide a vinyl sulphonyl group, or the group Het, where Het is an optionally substituted aromatic heterocyclic reactive or non-reactive group or a reactive or non-reactive group having an aliphatic chain; each of R51 and R52 independently is an aryl group selected from phenyl and naphthyl groups each of which is optionally substituted by a vinyl sulphonyl group, a group SO2CH2CH2Qi in which Qi is a leaving group removable under alkaline conditions to provide a vinyl sulphonyl group, or the group Het3, where Het3 is an optionally substituted aromatic heterocyclic reactive group or a reactive group having an aliphatic chain; each of L1, L2, L3 and L4, independently, is a linking group selected from the group consisting of N(R20); C(&boxH;O); C(&boxH;O)â€”O; S(&boxH;O)2; S(&boxH;O)â€”NH; C(&boxH;O)â€”NH; and NHC(&boxH;O)NH; in which R20 is C1-4 alkyl or hydrogen; each of V and W, independently, is NH2 or OH; each of x, y, z, f, g and h, independently is zero or 1; and at least one of R14, R40, R41, R51 and R52 is, or has thereon at least one substituent which is reactive.