Hair dye composition

A hair dye composition, comprising:

• a two-part aqueous formulation comprising, in a first part, a direct dye compound represented by formula (1), (2) or (3):
• wherein R1 represents an aryl group which may have a substituent,
• R2, R4, R5, R6, R8 and R9 each independently represents a hydrogen atom, a C1-6-alkyl group which may have a substituent, or an aryl group which may have a substituent;
• R3 and R7 each independently represents a hydrogen atom or an aryl group which may have a substituent;
• R10, R11 and R12 each independently represents a C1-6-alkyl group which may have a substituent or an aryl group which may have a substituent;
• rings A, B, C, D, E, F and G each independently represents a benzene ring which may be substituted with an amino group which may have a substituent, a C1-6-alkyl group which may have a substituent, a C1-6-alkoxy group or a halogen atom or may further be cyclocondensed with a benzene ring;
• and
• X− represents an anion, the first part having a pH ranging from 6-11 that is adjusted to within said range by an alkali agent;
• and
• a second part, comprising an aqueous solution of an oxidizing agent.

A hair dye composition, comprising:

• a three-part aqueous formulation comprising, in a first part, a direct dye compound represented by formula (1), (2) or (3):
• wherein R1 represents an aryl group which may have a substituent,
• R2, R4, R5, R6, R8 and R9 each independently represents a hydrogen atom, a C1-6-alkyl group which may have a substituent, or an aryl group which may have a substituent;
• R3 and R7 each independently represents a hydrogen atom or an aryl group which may have a substituent;
• R10, R11 and R12 each independently represents a C1-6-alkyl group which may have a substituent or an aryl group which may have a substituent;
• rings A, B, C, D, E, F and G each independently represents a benzene ring which may be substituted with an amino group which may have a substituent, a C1-6-alkyl group which may have a substituent, a C1-6-alkoxy group or a halogen atom or may further be cyclocondensed with a benzene ring;
• and
• X− represents an anion, the first part having a pH ranging from 6-11 that is adjusted to within said range by an alkali agent;
• and
• a second part, comprising an aqueous solution of an oxidizing agent;
• and
• a third part, comprising a powdered oxidizing agent.

A method of dyeing hair, comprising:

• treating the hair with a one-part aqueous formulation containing a direct dye compound represented by formula (1), (2) or (3):
• wherein R1 represents an aryl group which may have a substituent,
• R2, R4, R5, R6, R8 and R9 each independently represents a hydrogen atom, a C1-6-alkyl group which may have a substituent, or an aryl group which may have a substituent;
• R3 and R7 each independently represents a hydrogen atom or an aryl group which may have a substituent;
• R10, R11 and R12 each independently represents a C1-6-alkyl group which may have a substituent or an aryl group which may have a substituent;
• rings A, B, C, D, E, F and G each independently represents a benzene ring which may be substituted with an amino group which may have a substituent, a C1-6-alkyl group which may have a substituent, a C1-6-alkoxy group or a halogen atom or may further be cyclocondensed with a benzene ring;
• and
• X− represents an anion, the composition having a pH ranging from 6-11 that is adjusted to within said range by an alkali agent and containing at least one cosmetic ingredient selected from the group consisting of hydrocarbons, animal or vegetable fats and oils, fatty acids, organic solvents, hair penetration promoters, cationic surfactants, natural or synthetic polymers, alcohols, ethers, amphoteric surfactants, nonionic surfactants, protein derivatives, amino acids, antiseptics, chelating agents, stabilizing agents, antioxidants, plant extracts, crude drug extracts, vitamins, colorants, perfumes, aerosolizing agents and UV absorbers.

A method of dyeing hair, comprising:

• treating the hair with a two-part aqueous formulation comprising, in a first part, a direct dye compound represented by formula (1), (2) or (3):
• wherein R1 represents an aryl group which may have a substituent,
• R2, R4, R5, R6, R8 and R9 each independently represents a hydrogen atom, a C1-6-alkyl group which may have a substituent, or an aryl group which may have a substituent;
• R3 and R7 each independently represents a hydrogen atom or an aryl group which may have a substituent;
• R10, R11 and R12 each independently represents a C1-6-alkyl group which may have a substituent or an aryl group which may have a substituent;
• rings A, B, C, D, E, F and G each independently represents a benzene ring which may be substituted with an amino group which may have a substituent, a C1-6-alkyl group which may have a substituent, a C1-6-alkoxy group or a halogen atom or may further be cyclocondensed with a benzene ring;
• and
• X− represents an anion, the first part having a pH ranging from 6-11 that is adjusted to within said range by an alkali agent;
• and
• a second part, comprising an aqueous solution of an oxidizing agent.

A method of dyeing hair, comprising:

• treating the hair with a three-part aqueous formulation comprising, in a first part, a direct dye compound represented by formula (1), (2) or (3):
• wherein R1 represents an aryl group which may have a substituent,
• R2, R4, R5, R6, R8 and R9 each independently represents a hydrogen atom, a C1-6-alkyl group which may have a substituent, or an aryl group which may have a substituent;
• R3 and R7 each independently represents a hydrogen atom or an aryl group which may have a substituent;
• R10, R11 and R12 each independently represents a C1-6-alkyl group which may have a substituent or an aryl group which may have a substituent;
• rings A, B, C, D, E, F and G each independently represents a benzene ring which may be substituted with an amino group which may have a substituent, a C1-6-alkyl group which may have a substituent, a C1-6-alkoxy group or a halogen atom or may further be cyclocondensed with a benzene ring;
• and
• X− represents an anion, the first part having a pH ranging from 6-11 that is adjusted to within said range by an alkali agent;
• a second part, comprising an aqueous solution of an oxidizing agent;
• and
• a third part, comprising a powdered oxidizing agent.