Fibre reactive azo dyes

Details Fibre reactive azo dyes Fibre reactive azo dyes

C - Chemistry, Metallurgy

09

B

C09B 62/04 (2006.01) C09B 62/00 (2006.01) C09B 62/08 (2006.01) C09B 67/00 (2006.01)

Patent

CA 2477343

The present invention refers to dyestuffs of the formula I Image wherein R is an optionally substituted alkyl group; each of R1, R2 and R3, independently, is N or an optionally substituted alkyl group; each of X1 and X2, independently, is a labile atom or group; and each of A1 and A2, independently, is a chromophoric residue, processes for their preparation and their use for dyeing and printing hydroxy- and/or carboxamido-containing fiber materials.

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