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US 5,964,898 AGranted
Composition for the oxidation dyeing of keratinous fibers comprising 2-(.beta.-hydroxyethyl)-para-phenylenediamine, 2-methylresorcinol and resorcinol, and dyeing process using such a composition
AssigneeL'oreal
InventorsJean Cotteret, Marie-Pascale Audousset
Life of this patent
Estimating the term…
Abstract
An oxidation dyeing composition for keratinous fibers containing, in a medium appropriate for dyeing, at least one oxidation dye precursor selected from 2-(.beta.-hydroxyethyl)-para-phenylenediamine or its acid addition salts, at least one first coupler selected from 2-methylresorcinol or at least one acid addition salt thereof, and at least one second coupler selected from resorcinol or at least one acid addition salt thereof, and methods for dyeing keratinous fibers, especially hair, with such compositions.
Claims12
An oxidation dyeing composition (A) comprising, in a medium appropriate for dyeing,
- at least one oxidation dye precursor selected from 2-(.beta.-hydroxyethyl)-para-phenylenediamine or acid addition salts thereof, said oxidation dye precursor being present in a concentration of from 0.01 to 10% by weight relative to the total weight of the composition,
- at least one first coupler selected from 2-methylresorcinol or acid additional salts thereof, said first coupler being present in a concentration of from 0.01 to 5% by weight relative to the total weight of the composition, and
- at least one second coupler selected from resorcinol or acid addition salts thereof, said second coupler being present in a concentration of from 0.01 to 5% by weight relative to the total weight of the composition.
Dependencies are inferred from the claim text.