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US 4,904,275 AGranted
Hair dyeing composition based on oxidation dyes and bio-heteropolysaccharides
AssigneeL'oreal
InventorJean F. Grollier
Life of this patent
Estimating the term…
Abstract
The invention relates to a dyeing composition for keratinous fibres, and especially for human hair, containing at least one oxidation dye precursor and at least one water-soluble bio-heteropolysaccharide in a cosmetically acceptable medium, and not containing an oxidizing agent with develops the oxidation dye precursors.
Claims12
In combination,
- (A) a dyeing composition for keratinous fibres and especially for human hair, said dyeing composition being intended to be mixed at the time of use with an oxidation composition containing an oxidizing agent, containing 0.001 to 10% by weight of at least one oxidation dye precursor relative to the total weight of the dyeing composition and 0.1 to 5% by weight of at least one water-soluble bio-heteropolysaccharide, relative to the total weight of the dyeing composition in a cosmetically acceptable medium, with the proviso that the dyeing composition does not contain an oxidizing agent which develops the at least one oxidation dye precursor, the said bio-heteropolysaccharide being a xanthan gum having a viscosity of between 850 and 1,650 cP for an aqueous composition containing 1% of xanthan gum, measured in a Brookfield LVT viscometer at 60 rpm and a molecular weight of between 1,000,000 and 50,000,000;
- and
- (B) an oxidation composition containing an oxidizing agent which develops the at least one oxidation dye precursor of the dyeing composition.
Dependencies are inferred from the claim text.