| 摘要 |
The invention relates to a composition for dyeing keratinous fibres, in particular human keratinous fibres such as hair, comprising, in an appropriate dyeing medium, at least one cationic direct dye of a given formula, and which is characterized in that it contains, in addition, at least one nonionic surfactant chosen from the group consisting of alkyl polyglucosides, sugar or alkyl sugar fatty acid esters, fatty sugar amides and mixtures thereof. The invention also relates to the dyeing methods and devices using it.
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