| 摘要 |
There are described the use of pyridine dyes of the formula <IMAGE> or <IMAGE> where R1 is substituted or unsubstituted C1-C20-alkyl, substituted or unsubstituted phenyl or hydroxyl, R2 is a carbocyclic or heterocyclic radical, R3 is cyano, carbamoyl, carboxyl or C1-C4-alkoxy carbonyl, R4 is oxygen or the radical of an acidic CH compound, R5 is hydrogen or C1-C4-alkyl, R6 is substituted or unsubstituted C1-C20-alkyl, substituted or unsubstituted phenyl, hydroxyl or substituted or unsubstituted amino, and X is nitrogen or optionally CH, for dyeing or printing synthetic fibers, cellulose esters or blends thereof, dye mixtures comprising pyridine dyes of the above formulae and blue disperse dyes, the use thereof for dyeing and printing synthetic fibers, cellulose esters or blends thereof, and triazolopyridine dyes having a thienyl radical.
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