The present application relates to an agent for colouring keratin fibres based on oxidation dye precursors and/or direct dyes, which is characterized in that it comprises, in a suitable cosmetic carrier, at least one cellulose ether with 4,000 to 10,000 anhydroglucose units, which is substituted by (a) per mole of anhydroglucose unit on average 0.0003 to 0.08 mol of a nonionic or cationic hydrophobic substituent containing an alkyl group or arylalkyl group having 8 to 24 carbon atoms and (b) a cationic substituent of the formula (I),
[R1R2R3R4N+] (Az-)1/z (I)
where R1, R2 and R3, independently of one another, are a methyl or ethyl group,
R4 is a -CH2-CH2 group or a -CH2-CHOH-CH2 group,
Az- is an anion and z is 1, 2 or 3.
本申请涉及一种基于氧化
染料前体和/或
直接染料的角蛋白纤维
着色剂,其特征在于它包含在一种合适的化妆品载体中,至少一种具有4000至10000个脱
水葡萄糖单元的
纤维素醚,该
纤维素醚被(a)每摩尔脱
水葡萄糖单元平均0.0003 至 0.08 摩尔的非离子或阳离子疏
水取代基,该取代基含有 8 至 24 个碳原子的烷基或芳烷基,以及 (b) 式 (I) 的阳离子取代基、
[R1R2R3R4N+] (Az-)1/z (I)
其中 R1、R2 和 R3 相互独立地为甲基或乙基、
R4 是-
CH2- 基团或- -CHOH- 基团、
Az- 是阴离子,z 是 1、2 或 3。