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US 7,597,720 B2Granted
Oxidizing hair colourant compositions
AssigneeThe Procter & Gamble Company
InventorJennifer Mary Marsh
Life of this patent
Estimating the term…
Abstract
The present invention relates to oxidizing hair colorant compositions comprising selected oxidative hair dyes and diethylene-triamine-penta-(methylenephosphonic acid). The compositions provide improved hair color tonality, root to tip evenness and reduced wash fade over time.
Claims11
A hair colouring composition comprising
- a) an oxidizing agent
- b) at least one primary intermediate (developer) hair dye and at least one coupler dye selected from the group consisting of 4-amino-2-hydroxytoluene, 2-methyl-5-hydroxyethylaminophenol, 2,4-diaminophenoxyethanol, 6-hydroxybenzomorpholine, 1-napthol and mixtures thereof and
- c) diethylene-triamine-penta-(methylenephosphonic acid).
A method of treating hair comprising the subsequent steps of:
- i) contacting hair with a first composition comprising:
- a) diethylene-triamine-penta-(methylenephosphonic acid);
- ii) contacting hair immediately after step i) with a second composition comprising an oxidizing agent, a primary intermediate (developer) dye, and at least one coupler dye selected from the group consisting of 4-amino-2-hydroxytoluene, 2-methyl-5-hydroxyethylaminophenol, 2,4-diaminophenoxyethanol, 6-hydroxybenzo-morpholine, 1-napthol and mixtures thereof.
A hair colouring kit comprising
- i) an individually packaged oxidizing component comprising an oxidizing agent and
- ii) an individual packaged second component comprising at least one primary intermediate (developer) hair dye, at least one coupler dye selected from the group consisting of 4-amino-2-hydroxytoluene, 2-methyl-5-hydroxyethylaminophenol, 2,4-diaminophenoxyethanol, 6-hydroxybenzomorpholine, 1-napthol and mixtures thereof, and
- diethylene-triamine-penta-(methylenephosphonic acid).
Dependencies are inferred from the claim text.