Patent Interference No. 103,548 15. A method according to claim 9, wherein composition (B) containing, at a pH of between 2 and 10, a metal anion having a good affinity for keratin fibers and comprising permanganate or dichromate is applied to the keratinous fibres and, in a second step, the composition (A) is applied at a pH or between 4 and 10. 16. A method according to claim 15, wherein the permanganate or dichromate is used in an anion molality of higher than 10-3 moles/1,000 g up to 1 mole/1,000 g and the compositions do not contain an organic agent having a reducing effect on the anions. 17. A method according to claim 9, wherein composition (A) is applied to the keratinous fibres and composition (B), containing a metal salt comprising a manganese, cobalt, iron, copper or silver salt, is applied before or after the composition (A). 18. A method according to claim 17, wherein the metal salt is used in a proportion of between 0.01 and 2% by weight, expressed as metal ions, relative to the total weight of the composition. 19. A method according to claim 9, wherein composition (A) is applied and, before or after this composition, composition (B) containing a rare-earth salt selected from the group consisting of a cerium, lanthanum, europium, gadolinium, ytterbium and dysprosium salt is applied. 20. A method according to claim 19, wherein a the rare-earth salt is present in a proportion of between 0.1 and 8% by weight relative to the total weight of the composition. 21. method according to claim 9, wherein a composition based on hydrogen peroxide is used as the oxidizing medium, the hydrogen peroxide content in the composition being between 1 and 40 volumes. 22. A multicomponent agent for dyeing keratinous fibres, in particular human keratinous fibres, comprising a first component consisting of a composition (A) containing a 5,6-dihydroxyindoline corresponding to formula (I): HO CH2 CH2 (I) HO N RPage: Previous 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 NextLast modified: November 3, 2007