USE OF WATER-INSOLUBLE MONOAZO DYES OF THE FORMULA I

摘要

Use of water-insoluble monoazo dyes of the formula I (I) where X1 and X2 are each for example chlorine, X3 is for example hydrogen, methyl or alkoxy, Y is for example hydrogen, methyl, alkoxy or -NHCOR, R is hydrogen or alkyl, R1 is for example hydrogen, alkyl or alkenyl, and R2 is for example alkyl or alkenyl, in the sublimation transfer process.