Composition of oxidation staining of keratin fibers comprising a cationic cellulose ether, a metasilicate and oxidation dyes, oxidation staining process and use
Staining composition for keratin fibers, comprising, in a suitable medium for staining: A) one or more cationic cellulose ethers comprising 4,000 to 10,000 anhydroglucose residues, said anhydroglucose residues being substituted with at least: (i) a substituent of the formula [R4R5R6R9N +] (X2-), in which: R4 and R5 represent, independently of each other, a methyl or ethyl group, R6 represents a linear or branched alkyl group, C8-C24, or aralkyl whose alkyl part , linear or branched, is C8- C24, R9 represents a divalent group that allows binding to the anhydroglucose group and selected from - (B) q-CH2- CHOH-CH2- and -CH2CH2-, which indicates 0 or 1, B indicates a divalent group - (CH2CH2O) n'-, n 'an integer ranging from 1 to 100, X2- represents an anion； and (ii) a substituent of the formula [R1R2R3R8N +] (X1-), in which: R1, R2, R3 represent, independently of each other, a methyl or ethyl group, R8 represents a divalent group that allows binding to the anhydroglucose group and selected from - (A) p-CH2- CHOH-CH2- and -CH2CH2-, p indicates 0 or 1, A indicates a divalent group - (CH2CH2O) n-, n an integer ranging from 1 to 100, X1- represents an anion； B) one or more metasilicates； and C) one or more oxidation dyes selected from benzene, heterocyclic or naphthalene oxidation dyes.Composición de tinción para fibras queratínicas, que comprende, en un medio adecuado para la tinción: A) uno o varios éteres de celulosa catiónicos que comprenden de 4.000 a 10.000 restos de anhidroglucosas, estando sustituidos dichos restos de anhidroglucosas con al menos: (i) un sustituyente de fórmula [R4R5R6R9N+](X2-), en la que: R4 y R5 representan, independientemente entre sí, un grupo metilo o etilo, R6 representa un grupo alquilo, lineal o ramificado, C8-C24, o aralquilo cuya parte alquilo, lineal o ramificada, es C8- C24, R9 representa un grupo divalente que permite la unión al grupo anhidroglucosa y seleccionado entre -(B)q-CH2- CHOH-CH2- y -CH2CH2-, q indica 0 o 1, B indica un gr
