| 摘要 |
The oxidation dye precursor-containing composition for oxidative dyeing of hair, includes from 0.1 to 10% by weight of a combination of at least one 4,5-diaminopyrazole compound selected from the group consisting of 4,5-diamino-1-methyl-1H-pyrazole, 4,5-diamino-1-ethyl-1H-pyrazole, 4,5-diamino-1-isopropyl-1H-pyrazole, 4,5-diamino-1-(2'-hydroxyethyl)-1H-pyrazole, 4,5-diamino-1-benzyl-1H-pyrazole and 4,5-diamino-1-(4'-methylbenzyl)-1H-pyrazole; at least one 5-amino-2-methylphenol compound selected from the group consisting of 5-amino-2-methylphenol, 5-[(2'-hydroxyethyl)amino]-2-methylphenol and 5-methyl-amino-2-methyl-phenol; and at least one m-phenylenediamine compound selected from the group consisting of m-phenylenediamine, 2,4-diamino-1-(2'-hydroxyethoxy)benzene, 2,4-diamino-1-(2',3'-dihydroxypropoxy)benzene, 1,3-bis-(2',4'-diaminophenoxy)propane, 2-amino-4-[(2'-hydroxyethyl)amino]anisole and 1,5-bis-(2'-hydroxyethoxy)-2,4-diaminobenzene. The composition is advantageously mixed with an oxidant to form a ready-to-apply hair dyeing mixture for dyeing hair.
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