Trichromatic dyeing or printing mixt., pref. for polyamide fibre

摘要

Process for trichromatic dyeing or printing a N contg. organic substrate comprising applying to a substrate an anionic dye mixt. contg.: (a) at least one dyestuff of formula (I) as yellow component which is in free acid or salt form, where R1= H, 1-4C alkoxy, unsubstd. 1-4C alkyl or 1-4C alkyl monosubstd. by halogen; R2= 1-4C alkyl or -COR6; R6= 1-6C alkyl, -O(1-6C alkyl) or -NR7R8; R7, R8 = H, or monohydroxy-substd. 2-6C alkyl, etc.. R3 = H or 1-4C alkyl; R4 = H, halogen, or -NR3R9 etc.. R9 = -CO(1-6C alkyl) or -COO(1-6C alkyl); R5= 1-4C alkyl or monohydroxy-substd. 2-6C alkyl; R10= 1-4C alkyl, or -NR3Ra etc.; R11 = H, halogen, 1-4C alkyl or 1-4C alkoxy; (b) at least one dyestuff of formula (II) as red component which is in free acid or salt form, where R21= H, halogen, or -NHCO(1-4C alkyl); R22= trifluoromethyl, -SO2Z1 or -SO2Z2; Z1= phenyl, phenoxy or -NR19R20 where R19= methyl or ethyl and R20= phenyl or cyclohexyl; Z2= -N(C4H9)2 or -N(CH2)6; (c) at least one dyestuff of formula (III) as blue component which is in free acid or salt form, where R23= H, or methyl; one of R24, R25 = -SO2NH(2-4C hydroxyalkyl) or -NR26CO(1-4C alkyl) where R26= H, methyl or ethyl, and the other is H or methyl.