High light fastness reactive red dyes

Details High light fastness reactive red dyes High light fastness reactive red dyes

C - Chemistry, Metallurgy

09

B

C09B 62/04 (2006.01) C09B 67/22 (2006.01) D06P 1/382 (2006.01) D06P 3/10 (2006.01) D06P 3/66 (2006.01) D06P 3/14 (2006.01) D06P 3/24 (2006.01) D06P 3/32 (2006.01)

Patent

CA 2480922

The present invention refers to dyestuffs of the formula (I) (see formula I) wherein R1 is H or (C1-C4)-alkyl; R2 is H or (C1-C4)-alkyl; each of X1 and X2, independently, is a labile atom or group; and M is H, an alkali metal, an ammonium ion or the equivalent of an alkaline earth metal, wherein compounds wherein R1 and R2 are H are excluded, mixtures of the dyestuffs of the formula (I) with dyestuffs of the formula (II) (see formula II) wherein each of X3 and X4, independently, is a labile atom or group; L is an organic linking group; and M is H, an alkali metal, an ammonium ion or the equivalent of an alkaline earth metal. processes for the preparation of said dyestuffs and said dyestuff mixtures and their use for dyeing and printing hydroxy-and/or carboxamido-containing fiber materials.

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