Keratinous fibre oxidation dyeing composition containing a laccase and dyeing method using same
AssigneeL'oreal
InventorsGérard Lang, Jean Cotteret
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Abstract
The invention concerns a ready-to-use composition for oxidation dyeing of keratinous fibers, and in particular human keratinous fibers such as hair comprising, in a suitable dyeing medium, at least an oxidation base, 2-amino 3 hydroxy pyridine as coupling agent, and at least an enzyme such as laccase, as well as the method using said composition.
Claims36
A composition for the oxidation dyeing of keratinous fibers comprising:
- (a) at least one colorant chosen from oxidation bases and acid addition salts thereof;
- (b) at least one coupler chosen from 2-amino-3-hydroxypyridine and acid addition salts of said coupler;
- and
- (c) at least one enzyme of the laccase type.
A method of dyeing keratinous fibers, comprising the step of applying at least one dyeing composition to said keratinous fibers for a sufficient time to achieve a desired coloration, wherein said at least one dyeing composition comprises:
- (a) at least one colorant chosen from oxidation bases and their acid addition salts;
- (b) at least one coupler chosen from 2-amino-3-hydroxypyridine and acid addition salts of said coupler;
- and
- (c) at least one enzyme of the laccase type.
A method for dyeing keratinous fibers comprising the steps of:
- (a) storing a first composition;
- (b) storing a second composition separately from said first composition;
- (c) mixing said first composition with said second composition to form a mixture;
- and
- (d) applying said mixture to said keratinous fibers for a sufficient time to achieve a desired coloration;
- wherein said first composition comprises at least one colorant chosen from oxidation bases and their acid addition salts and at least one coupler chosen from 2-amino-3-hydroxypyridine and acid addition salts of said coupler, in a medium appropriate for dyeing keratinous fibers, and
- wherein said second composition (B) comprises at least one enzyme of the laccase type, in a medium appropriate for dyeing keratinous fibers.
A multicompartment device or a dyeing kit, comprising:
- a first compartment containing a first composition comprising at least one colorant chosen from oxidation bases and their acid addition salts and at least one coupler chosen from 2-amino-3-hydroxypyridine and acid addition salts of said coupler, in a medium appropriate for dyeing keratinous fibers;
- and
- a second compartment containing a second composition comprising at least one enzyme of the laccase type, in a medium appropriate for dyeing keratinous fibers.
Dependencies are inferred from the claim text.