Dye mixture, process for its preparation and its use

摘要

Dye mixture contains reactive 1-(2-arylamino-4-chloro-1,3,5-triazin-6-yl-amino)-7-vinylsulfonylpheny lazo-8-hydroxy naphthalene-3,6-disulfonic acid (precursor) dye(s) (I) and 1-(2-arylamino-4-chloro-1,3,5-triazin-6-yl-amino)-7-arylazo-8-hydroxy naphthalene-3,6-disulfonic acid dye(s) (II) in 70:30 to 30:70 molar ratio. Dye mixture contains reactive 1-(2-arylamino-4-chloro-1,3,5-triazin-6-yl-amino)-7-vinylsulfonylpheny lazo-8-hydroxy naphthalene-3,6-disulfonic acid (precursor) dye(s) (I) and 1-(2-arylamino-4-chloro-1,3,5-triazin-6-yl-amino)-7-arylazo-8-hydroxy naphthalene-3,6-disulfonic acid dye(s) (II) of the given formulae in 70:30 to 30:70 molar ratio: M = hydrogen (H), an alkali metal or the equivalent of an alkaline earth metal; R<1>, R<7> = H, 1-4 carbon (C) alkyl, 1-4 C alkoxy, sulfo or carboxy; R<2>, R<8> = H, 1-4 C alkyl or 1-4 C alkoxy; RA, RB = H or sulfo; R = H or 1-4 C alkyl; Y<1>, Y<2> = vinyl or ethyl with a substituent eliminated by alkali in the beta -position; G, D = a benzene residue; R<3>, R<5> = H, 1-4 C alkyl, 1-4 C alkoxy, halogen, sulfo or carboxy; and R<4>, R<6> = H, 1-4 C alkyl, 1-4 C alkoxy or sulfo; or G, D = a naphthalene residue; R<3>, R<5> = H, methyl, sulfo or carboxy; and R<4>, R<6> = H or sulfo.