| 摘要 |
PURPOSE: A composition for dyeing keratin fibers is provided, which can exhibit excellent resistance to many factors against hairs including light, bed weather and shampoo, and provide deeper and more non-selective coloring with hairs. Also, a process and an apparatus for dyeing using the composition are provided. CONSTITUTION: The composition comprises in a suitable medium for dyeing, 0.001-10wt% of one or more cationic direct dye of formula 1, based on a total weight of the composition and 0.01-10wt% of one or more thickening polymer selected from a group consisting of polysaccharide and cellulose, based on a total weight of the composition.
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