| 摘要 |
Process for pretreatment of keratin fibers prior to dyeing the fibers in a coloring process using at least one dye chosen from direct dyes and oxidation dyes comprises applying a composition to fibers containing at least one specific aminosilicone. Process for pretreatment of keratin fibers prior to dyeing the fibers in a coloring process using at least one dye chosen from direct dyes and oxidation dyes comprises applying a composition to fibers containing at least one aminosilicone chosen from (I) or (II). An Independent claim is also included for a process of coloring keratin fibers by applying the pretreatment composition. m and n = numbers with a sum (n+m) ranging from 1-1000 (preferably 50-250, especially 100-200); n = 0-999 (preferably 49-249, especially 125-175); m = 1-1000 (preferably 1-10, especially 1-5); R1-R3 = hydroxy radical or C1-4 alkoxy radical, where at least one of R1-R3 is an alkoxy radical; p, q = numbers with a sum (p+q) from 1-1000 (preferably 50-350, especially 150-250); p = 0-999 (preferably 49-349, especially 159-239); q = 1-1000 (preferably 1-10, especially 1-5). With the proviso that in formula (II), R1 and R2 are different.
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