mixtures of dyes, and their use in the trichromatic.

摘要

The present invention relates to a mixture of at least a yellow dye of formula ia, together with at least one dye red and blue of formula ii and iii, & br / (see appended drawing in bopi) & br / & & br / which is entirely suitable for dyeing or printing trichromatic of organic substrates containing nitrogen, particularly natural or synthetic polyamides.