Compositions for dyeing hair with cationic direct dyes
AssigneeNoxell Corporation
InventorsGuiru Zhang, Bryan Patrick Murphy, Peter Marte Torgerson
Life of this patent
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Abstract
Described herein is a hair color composition for dyeing the hair. The hair color composition includes one or more direct dye compounds and one or more additional ingredients. The one or more direct dye compounds each include a chromophore, one or two permanent cations, one to four incipient cations, and one or more hydrophobic moieties. The incipient cations are pendant to the core structure and are neutral. The one or more direct dye compounds enter the hair shaft after the hair color composition is applied to the hair. The hair color composition has a pH of from about 7 to about 11.
Claims10
A hair color composition comprising:
- a. one or more direct dye compounds, the one or more direct dye compounds each comprising:
- i. a chromophore;
- ii. one or two permanent cations, wherein the permanent cations are pendant to the chromophore or part of the chromophore, wherein the chromophore and the permanent cations form a core structure;
- and
- iii. one to four incipient cations, wherein each of the incipient cations is pendant via a linker group to the core structure, and wherein the incipient cations are neutral;
- and
- iv. one or more C5-C9 hydrophobes, wherein the one or more C5-C9 hydrophobes are pendant to the core structure;
- and
- b. an additional ingredient selected from the group consisting of organic solvents, oxidizing agents, alkalizing agents, oxidative dye precursors, direct dyes, chelants, radical scavengers, pH modifiers, buffering agents, thickeners, rheology modifiers, carbonate ion sources, peroxymonocarbonate ion sources, surfactants, polymers, natural ingredients, fragrances, enzymes, dispersing agents, peroxides, peroxide stabilizing agents, antioxidants, protein compounds, plant extracts, conditioning agents, ceramides, phospholipids, UV blockers, preserving agents, emollients, moisturizing agents, pigments, opacifiers, pearling agents, and mixtures thereof;
- wherein the hair color composition has a pH of from about 7 to about 11, and
- wherein the chromophore has a structure according to Formula (XIXo) or a tautomer or salt thereof:
- wherein
- (i) R15b, R15c, R15d, R15e, R15g, R15h, R15k, and R15l are each independently hydrogen, alkyl, halogen substituted alkyl, alkenyl, alkynyl, aryl, hydroxyl alkyl, alkoxy, aryloxy, acyl, halogen, nitro, nitroso, cyano, a heterocyclic moiety, thioether or are attached to a linker with or without a terminal amino group;
- (ii) one of R15i and R15j are each independently hydrogen, C5-C9 alkyl, Hydroxyl alkyl or a linker group with a primary, secondary, or tertiary amino group attached;
- (iii) one of R15a and R15f are each independently hydrogen, C5-C9 alkyl or a linker group with a primary, secondary, or tertiary amino group attached;
- (iv) there is at least one C5-C9 alkyl group attached to the chromophore;
- and
- (v) the total number of amino groups attached to R15a, R15f, R15i, and R15j is 1-4 and the amino groups can be primary, secondary, or tertiary.
Dependencies are inferred from the claim text.