Dyeing human keratin material, e.g. hair, imparting brightening effect, uses fluorescent bis- (pyridinium-aminophenyl-ethene) dyes, mostly new compounds

摘要

Method for dyeing human keratin materials to impart a brightening effect by application of at least one fluorescent bis(1-pyridinium-2-aminophenyl-ethene) dye (I). Method for dyeing human keratin materials to impart a brightening effect by application of at least one fluorescent bis(1-pyridinium-2-aminophenyl-ethene) dye of formula (I). [Image] R 1and R 2H, a substituent or together complete a ring; R 3and R 4H or 1-4C alkyl; each R 5H, halo, or 1-4C alkyl, optionally interrupted by at least one heteroatom; each R 6H, halo, or 1-4C alkyl, optionally substituted and/or interrupted by at least one heteroatom and/or a group that contains at least one heteroatom and/or substituted by at least one halo; X : 1-14C alkyl or 2-14C alkenyl (optionally substituted and/or interrupted by at least one heteroatom and/or a group that contains at least one heteroatom and/or substituted by at least one halo), 5-6 membered heterocycle (optionally substituted by at least one 1-14C alkyl or 1-4C aminoalkyl (both optionally substituted by at least one heteroatom) or at least one halo), aromatic or diaromatic (fused or not, optionally separated by 1-4C alkyl) group (optionally substituted by one or more halo or 1-10C alkyl (optionally substituted and/or interrupted by at least one heteroatom and/or a group that contains at least one heteroatom)), or dicarbonyl, and X may contain one or more positive charges; a : 0 or 1; each Y : organic or inorganic anion; n : integer at least 2 and at most equal to the number of positive charges in the dye molecule The full definitions are given in the DEFINITIONS (Full Definitions) Field. Independent claims are also included for the following: (1) compositions containing the new (I); and (2) multicomponent device containing (a) a composition of (2), optionally also a direct dye, oxidation base and/or coupler and (b) an oxidant.