Method and composition for oxidative hair coloring
AssigneeWella Operations US, LLC
InventorsFiroj Vohra, Graham Neil Mckelvey
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Abstract
The present invention is directed to embodiments of a method for coloring hair using an oxidative hair coloring composition based upon the primary dye compounds MBB, Aminol and optional secondary precursor and coupler compounds PAP, DPE, MAP, AHT and EOAP, a carbonate and/or bicarbonate source, an alkalizer and one or more amino acids. Additional subsidiary precursors and couplers may be included to broaden the color space delivered by the primary dye compounds. The oxidative hair coloring composition is free of resorcinol and C1-C10 alkyl resorcinol. The L*a*b* color space of embodiments of the oxidative hair coloring composition as measured by L*a*b* techniques is about the same as that delivered by the resorcinol based composition.
Claims17
A method for coloring hair comprising applying to hair an oxidative hair coloring composition comprising a cosmetically acceptable medium of a basic pH and at least components A, B and C wherein:
- A) is a precursor comprising 2-methoxymethyl-p-phenylene diamine (MBB) of Formula I, its addition salts, its solvates and/or solvates of its salts;
- B) is a coupler comprising hydroxyethyl-3,4-methylenedioxyaniline (Aminol) of Formula II, its addition salts, its solvates and/or solvates of its salts,
- C) is an L* mixture of a source of carbonate and/or bicarbonate, a source of ammonium cation and an amino acid selected from glycine;
- the composition is free of resorcinol, C1-C10 alkyl resorcinol and halo resorcinol;
- the composition displays pseudo-resorcinol action control of the color progression in the negative direction along the L* axis of the CIELAB color space;
- and
- the composition comprises hydrogen peroxide, and an optional alkalizer of an alkali metal hydroxide and/or ammonium hydroxide.
A method for coloring hair using a tint composition to form an oxidative hair coloring composition wherein the tint composition comprises cosmetically acceptable medium of a basic pH and at least components A, B and C wherein:
- A) is a precursor comprising 2-methoxymethyl-p-phenylene diamine (MBB) of Formula I, its addition salts, its solvates and/or solvates of its salts;
- B) is a coupler comprising hydroxyethyl-3,4-methylenedioxyaniline (Aminol) of Formula II, its addition salts, its solvates and/or solvates of its salts,
- C) is an L* mixture of a source of carbonate and/or bicarbonate, a source of ammonium cation and an amino acid selected from glycine;
- the tint composition is free of resorcinol, C1-C10 alkyl resorcinol and halo resorcinol;
- and
- the tint composition comprises an optional alkalizing agent of alkali metal hydroxide and/or ammonium hydroxide.
A kit for forming an oxidative hair coloring composition comprising:
- A. a tint composition component comprising a cosmetically acceptable basic medium, an optional alkalizer, an L* mixture of a source of carbonate/bicarbonate, a source of ammonium cation and an amino acid selected from glycine;
- a precursor of at least MBB and a coupler of at least Aminol;
- and,
- B. an oxidizer composition component comprising at least a cosmetically acceptable acidic medium, hydrogen peroxide, a fatty alcohol, an anionic surfactant and a buffered acid to maintain an acidic pH of the oxidizer composition;
- wherein the tint composition component and the oxidizer composition component are maintained separately and are free of resorcinol and C1-C10 alkyl resorcinol and halo resorcinol.
Dependencies are inferred from the claim text.