PROCESS FOR DYEING POLYAMIDE FIBRES

摘要

Dyestuffs which are highly suitable for use as the blue component in the trichromatic dyeing of polyamide fibre materials have the formula (I) in which R1 and R2 denote alkyl, the total number of the C atoms in the radicals R1 and R2 being at least three. The dyeings obtained are distinguished, inter alia, by good ozone fastness and the absence of the catalytic fading effect.