Patent ID: 8257448

Claim:
Hair dyeing composition comprising (a) a dye of formula (b) at least one dye selected from the compounds of formulae wherein D is the radical of a diazo component of the formula K is the radical of a coupling component selected from aniline derivatives; phenol derivatives; and a radical of a heterocyclic coupling component; X is —O—; —S—; or —N(R 8 )—; Y is —CH═; —CR 15 ═; or —N═; R 1 , R 2 , R 3 and R 4 independently from each other are hydrogen; or C 1 -C 4 alkyl; R 5 and R 6 independently from each other are hydrogen; C 1 -C 4 alkyl; or C 1 -C 4 alkoxy; R 7 and R 9 independently from each other are unsubstituted or OH—, C 1 -C 4 alkoxy-, halogen-, amino-, C 1 -C 4 -mono or -dialkylamino-substituted C 1 -C 4 alkyl; R 8 is hydrogen; or C 1 -C 4 alkyl; R 10 is hydrogen; C 1 -C 4 alkyl; or CN; R 11 is unsubstituted or OH— or CN-substituted C 1 -C 4 alkyl; R 12 is hydrogen; or C 1 -C 4 alkyl; R 13 and R 14 independently from each other are hydrogen; C 1 -C 4 alkyl; or C 1 -C 4 alkoxy; or R 13 and R 14 together with the nitrogen and carbon atoms joining them together form a 5- or 6-membered ring; R 15 is hydrogen; or C 1 -C 4 alkyl; and An 1 − is a colorless anion; and (c) a quaternary ammonium salt selected from (c 1 ) quaternary ammonium salts of the formula wherein R 16 and R 19 , independently from each other are a saturated or unsaturated, linear or branched, aliphatic C 1 -C 30 alkyl; or an alkoxy, alkoxycarbonylalkyl, polyoxyalkylene, alkylamido, alkylamidoalkyl, hydroxyalkyl, aromatic, aryl or alkylaryl radical comprising from about 12 to about 30 carbon atoms, with at least one radical among R 16 , R 17 , R 18 and R 19 denoting a radical comprising from 8 to 30 carbon atoms; An 2 − is an anion selected from the group comprising halides, phosphates, acetates, lactates and alkyl sulphates; (c 2 ) imidazolium salts of the formula wherein R 20 is C 13 -C 31 alkyl or C 13 -C 31 alkenyl, derived from tallow fatty acids; (c 3 ) quaternary diammonium salts of the formula in which R 21 is C 6 -C 31 alkyl; R 22 , R 23 , R 24 , R 25 and R 26 are selected from hydrogen; or C 1 -C 4 alkyl; and An 3 − is an anion selected from halides, acetates, phosphates and sulphates.