| 摘要 |
Composition (A) in a medium, comprises a direct dye having a tricyclic ring system with a fused oxazolium, sulfonium, imidazolium, selenazolium or pyrrolidinium ring structure (I) or a tricyclic ring system with a fused pyridinium ring structure (II). Composition (A) in a medium, comprises a direct dye of formula (I) or (II). A 1, Aa 1N, S, O (substituted by 1-6C alkyl (optionally substituted by halo or OH)), selenium or CRa 2; R 1, R 6, Ra 6H, 1-22C (preferably 1-6C) (cyclo)alkyl optionally substituted by OH, 1-6C (cyclo)alkoxy, 6-30C aryl or 6-30C aryloxy (optionally substituted by sulfo, COOH, 1-6C alkoxycarbonyl or 6-30C aryl); either R 2-R 5, Ra 2-Ra 5H, 1-22C (preferably 1-6C) alkyl (optionally substituted by OH, COOH or halo) or sulfo; or 2CR 2Ra 2R 3R 3, 2CR 4Ra 4R 5Ra 5cyclic or aliphatic heterocyclic group or cyclic or aromatic heterocyclic group (optionally condensed with a cyclic or aromatic heterocyclic group) all optionally substituted by 1-4C alkyl (carrying COOH), halo, sulfo, COOH or 6-30C aryl; or R 6(R 2, R 5, Ra 3, Ra 5) : aromatic heterocyclic group; or 2C(R 2Ra 2, R 3Ra 3, R 2Ra 4, R 5Ra 5) : cyclic or aromatic heterocyclic group; n : 1-3; p : 0-1; and X : organic or mineral anion. Independent claims are also included for: (1) treatment of human keratinous fiber comprising applying (A) to the dry or wet fibers to develop the coloration, after rinsing the fibre, optionally washing with shampoo, rinsing again and drying or allowing the resulting fibers to dry; and (2) device with several compartments for dyeing and brightening hair, comprising compartment containing (A) and at least another compartment containing (A) containing an oxidizing agent. [Image]. |
