| abstract |
The present invention is useful as a direct dye for dyeing human keratin materials, especially fibers, and allows natural coloring such as brown to be obtained, but does not require the use of a mixture of various dyes, The present invention provides a staining compound having improved rapidity compared to a product. The following formulas (I) and (II) And a synthesis method thereof. This also relates to dyeing compositions comprising said compounds as cationic direct dyes and to a method for dyeing keratin fibers, in particular human keratin fibers, using these compositions. [Selection figure] None |