| 摘要 |
PROBLEM TO BE SOLVED: To provide a one-pack type composition for dyeing keratin fibers which can prevent or reduce pollution on the skin, for example the pollution on the scalp by a direct dye, despite using the direct dye, on the other hand which gives a good cosmetic effect, for example good coloring properties, to the keratin fibers.SOLUTION: The invention provides a composition for dyeing keratin fibers which contains (a) at least one kind of direct dye, and (b) at least one kind of sulfone compound represented by the formula (I). Preferably the direct dye is a diaryl anionic azo dye. [Rand Rare each independently at least one substituted/un-substituted aliphatic groups of Cor monovalent aromatic groups of C, or Rand Rare substituted/un-substituted heterocycles of 3-10 member together with a binding sulfur atom. |
