Cationic diazo compounds, compositions comprising them as direct dye, process for dyeing keratin fibers and device therefor

摘要

The present disclosure relates to cationic diazo compounds chosen from those of formula (I) and the acid addition salts thereof: Dye1-LK-Dye2 (I); and to dye compositions comprising the the compounds as direct dye, and also to a process for dyeing keratin fibers using this composition and a multi-compartment device.