Colorant mixtures containing isoquinoline derivatives, use thereof in printing inks, and novel isoquinoline derivatives

摘要

Colorant mixtures for use in printing inks contain isoquinoline-azo pigments of the formula I ##STR1## where X is chlorine, bromine, C.sub.1 - C.sub.4 -alkoxy or nitro,PPn is 1, 2 or 3, and the ring A can be substituted, and an isoquinoline-azo dye of the formula II ##STR2## where Y is C.sub.6 -C.sub.20 -alkoxy which may be interrupted by one or more oxygen atoms, and the ring B can be substituted.