| 摘要 |
The present invention relates to dyes of formula (1), wherein each of the residues D1 and D2 represents a radical of formula (2), wherein Ar1 represents the tetravalent radical of a carbocylic or heterocyclic aromatic compound, R1, R2 and R3 are each independently of the other hydrogen, C1-C12alkyl, C1-C12alkoxy, halogen,—OH,—CN,—NO2,—CF3,—SO3H,—NHCOR4,—COOR5,—CONR6R7,—SO2NR8R9,—NR10SO2R11,—SO2R13—or—ZCH2CH2Q, wherein Z is—O—,—SO2—,—NR12—,—CONH—or—NHCO—, Q represents—OH, C1-C12alkyl,—SO2R13—,—NHR14—,—OCH2CH2OH,—SO2CH2CH2OH or—NHCH2CH2OH, R4 is C1-C12alkyl, R5, R6, R7, R8, R9, R10, R12, R13 and R14 are each independently of the others hydrogen or C1-C12alkyl, and R11 is C1-C122alkyl, with the proviso that at least one of the residues D1 and D2 is a radical of formula (2) wherein R3 is—COOR5,—SO2NR8R9,—SO2R13—or—ZCH2CH2Q, dichromatic and trichromatic mixtures containing these dyes and the use of these dyes for dyeing or printing hydroxyl group-containing or nitrogen-containing fibre materials. |
