| abstract |
The invention relates to a composition for changing the color of keratinous fibers containing at least one compound from the group of oxidation dye precursors, direct dyes, hydrogen peroxide or mixtures thereof and at least one silicone block copolymer containing structural units of the formulas (I) and (II) in which X is a substituted or unsubstituted alkylene radical having 1, 2, 3, 4, 5, 6, 7 or 8 C atoms, Y is a substituted or unsubstituted alkylene radical having 1, 2, 3, 4, 5, 6, 7 or 8 carbon atoms, Q is a substituted or unsubstituted alkylene radical having 1, 2, 3, 4, 5, 6, 7 or 8 carbon atoms, R1 is a substituted or unsubstituted methyl, ethyl, n- Is propyl, isopropyl, n-butyl, sec-butyl, isobutyl or tert-butyl, R2 is a substituted or unsubstituted methyl, ethyl, n-propyl, isopropyl, n-butyl, sec butyl, isobutyl or tert-butyl radical, R 3 represents -H or -CH 3, k is an integer from 1 to 30, preferably 10, 11, 12, 13, 14, 15, 16, 17 or 18 is and m and n stand for integers between 2 and 200. |