Agent, useful for coloring keratin fibers, preferably human hairs, animal hairs, wool, horse hair, angora hair, fur, feathers or textiles, comprises 4-(3-(1H-pyridin-4-ylidene)-cyclopenta-1,4-dienyl)-pyridinium compound as a direct dye

摘要

Agent for coloring keratin fibers, preferably human hairs, comprises 4-[3-(1H-pyridin-4-ylidene)-cyclopenta-1,4-dienyl]-pyridinium compound (I) as a direct dye, in a carrier. Agent for coloring keratin fibers, preferably human hairs, comprises 4-[3-(1H-pyridin-4-ylidene)-cyclopenta-1,4-dienyl]-pyridinium compound of formula (I) as a direct dye, in a carrier. R 1, R 21-6C-alkyl, 2-6C-alkenyl, 2-6C-hydroxyalkyl, 2-6C-polyhydroxyalkyl, 1-6C-alkoxy-1-6C-alkyl, amino-1-6C-alkyl, di-1-6C-alkylamino-2-6C-alkyl, aryl-1-6C-alkyl or cyano-1-6C-alkyl; R 3H, 1-6C-alkyl, 2-6C-alkenyl, OH, alkoxy or (hetero)aryl; either R 4, R 5H, 1-6C-alkyl, 2-6C-alkenyl, 2-6C-hydroxyalkyl or (hetero)aryl; or R 4R 5+C of the cyclopentadiene rings : optionally saturated ring system, which is optionally substituted or contains up to 3 further annelated, carboaromatic or heteroaromatic ring system; and X -an anion. [Image].