process for the production thermomigrierechter true colors.

摘要

The present invention relates to a process for the production of highly thermomigration-resistant dyeings on fibre materials consisting entirely or partially of polyester, in which the fibre materials are subjected to a thermal treatment after dyeing, characterised in that dyeing is carried out with one or more dyestuffs of the general formula I IMAGE in which R1 and R2 independently of one another denote methyl and ethyl.