| 摘要 |
The invention relates to the use of pigment mixtures which contain at least one pigment of formulas (Ia) and (Ib), wherein, independent from each other, X1, X3 represent carbamoyl, C1-C4-alkylcarbamoyl, di(C1-C4)-alkylcarbamoyl, sulfamoyl, phenylsulfamoyl, C1-C4-alkylsulfamoyl or di(C1-C4)-alkylsulfamoyl; X2, X4 represents hydrogen, C1-C4-alkyl, C1-C4-alkoxy, halogen or nitro; Y1, Y2 represents hydrogen, halogen or C1-C4-alkyl, C1-C4-alkoxy or C1-C4-alkoxycarbonyl; and Z1, Z2 represents hydrogen, phenyl, naphthyl, benzimidazolonyl, substituted phenyl or substituted naphthyl, wherein the substituents can be 1, 2, 3 or 4 and selected from the groups halogen, nitro, cyano, C1-C4-alkoxycarbonyl, carbamoyl, C1-C4-alkylcarbamoyl, di(C1-C4)-alkylcarbamoyl, phenylcarbamoyl, sulfamoyl, phenylsulfamoyl, C1-C4-alkylsulfamoyl, di(C1-C4)-alkylsulfamoyl, C1-C4-acylamino, C1-C4-alkyl and C1-C4-alkoxy, and the pigments of formulas (Ia) and (Ib) are different. Said pigment mixtures are used as a dye in printing methods. |
