| 摘要 |
<p>The invention concerns a dyeing composition for oxidation dyeing of keratinous fibers, and in particular human keratinous fibres such as hair comprising, in a medium suited for dyeing, as first coupling agent at least an appropriately selected 3,5-diaminopyridine derivative; and as second coupling agent at least a substituted meta-diphenol and/or one of its addition salts with an acid; and at least a para-phenylenediamine oxidation base and/or one of its addition salts with an acid. The invention also concerns the dyeing method using said composition.</p> |
