| 摘要 |
Composition and method allowing the oxydizing coloration of hair based on at least one substituted phenol, as a coupling compound, having the general formula (FORMULA) wherein R<u1>u represents a hydroxy-alkyl residue with 1 to 4 carbon atoms and R<u2>u represents a hydrogen atom or an alkyl residue with 1 to 4 carbon atoms; these phenols may also be phenolates. In these coloring compositions, the coupling compounds, among which the preferred ones are 2-hydroxy-methyl-5-methylphenol and 3-(ss-hydroxy-ethyl)-6-methyl-phenol, must have a concentration from 0.01 to 3.0% by weight and particularly a concentration from 0.1 to 2.0% by weight. The coupling compounds hereabove described are blue coupling compounds. The coloration shades obtained by using the compositions of the invention are long lasting, give a natural look and are reproducible. The coupling compounds according to the above-indicated formula exhibit favorable dermatological and toxicological characteristics and prevent dyed hair from having the unpleasant and penetrating smell of cresols. |
