Classifications

• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
  • A61K8/00—Cosmetics or similar toiletry preparations
  • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
  • A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
  • A61K8/40—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing nitrogen
  • A61K8/41—Amines
  • A61K8/415—Aminophenols
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
  • A61Q5/00—Preparations for care of the hair
  • A61Q5/10—Preparations for permanently dyeing the hair

Definitions

• the invention relates to agents for the oxidative dyeing of hair, which are characterized by a content of 6-amino-3-methylphenol ' as color component.
• dyes that are directly absorbed by the hair are also important as a constituent of oxidation hair dyes. With these direct dyes, yellow, orange, red and violet colors can be achieved.
• Dyes that are used to dye human hair have to meet numerous requirements. For example, they must be harmless from a toxicological and dermatological point of view and enable coloring in the desired intensity. In addition, it is necessary that by choosing suitable color precursors and suitable direct dyes one wide range of different color shades can be generated. Furthermore, good light, permanent wave, acid and rub fastness is required for the achieved hair dyeing. In any case, however, such hair colorations must remain stable over a period of at least 4 to 6 weeks without exposure to light, friction and chemical agents.
• Direct aromatic nitro dyes also lead to uneven colorations when used on differently damaged hair.
• a sufficiently intensive coloring of porous, chemically damaged hair tips is therefore often not possible.
• the hair dye according to the invention can the 6-amino-3-methylphenol and / or its salts or phenolates alone or in
• the 6-amino-3-methylphenol content of the hair dye according to the invention should be about 0.01 to 2.0 percent by weight, preferably 0.02 to 0.3 percent by weight.
• the usual developer substances which may be present in the colorants according to the present application are, in particular, 1,4-diaminobenzene, 2,5-diaminotoluene and p-aminophenol.
• ner also conventional direct dyes, for example triphenylmethane dyes such as Diamond Fuchsin (CI 42-510) and Leather Ruby HF (CI 42 520), aromatic nitro dyes such as 2-nitro-1,4-diaminobenzene, azo dyes such as Acid Brown 4 (CI 14 805) and Acid Blue 135 (CI 13 385), anthraquinone dyes such as Disperse Violet k (CI 61 105), Disperse Blue 1 (CI 64 500), Disperse Red 15 (CI 60 710), Disperse Violet 1 (CI 61 100), 1,4,5,8-tetraaminoanthraquinone and 1,4-diaminoanthraquinone may also be present.
• triphenylmethane dyes such as Diamond Fuchsin (CI 42-510) and Leather Ruby HF (CI 42 520)
• aromatic nitro dyes such as 2-nitro-1,4-diaminobenzene
• azo dyes such as Acid Brown 4 (CI
• the preparation form of the hair colorants according to the invention can consist of a solution, a cream, a gel or an emulsion.
• Their composition is a mixture of the color components with the constituents customary for such preparations.
• the usual constituents of creams, emulsions or gels are, for example, wetting agents or emulsifiers from the classes of anionic or nonionic surface-active substances such as Fatty alcohol sulfates, fatty acid alkanolamides, alkyl sulfonates, alkylbenzenesulfonates, oxathylated fatty alcohols, oxathylated nonylphenols, further thickeners such as higher fatty alcohols, starch, cellulose derivatives, paraffin oil and fatty acids as well as care substances such as lanolin derivatives, cholesterol and pantothenic acid.
• ingredients mentioned are used in the usual amounts for such purposes, e.g. B. the wetting agents and emulsifiers in concentrations
• antioxidants such as ascorbic acid or alkali sulfite, perfume oils, lower aliphatic alcohols such as ethanol or isopropanol
• perfume oils for example antioxidants such as ascorbic acid or alkali sulfite, perfume oils, lower aliphatic alcohols such as ethanol or isopropanol
• lower aliphatic alcohols such as ethanol or isopropanol
• Alkali metal hydroxides, complexing agents and others are present.
• the colorants according to the present application are adjusted to a pH in the weakly acidic, neutral or alkaline range.
• they have a pH in the alkaline range between 8.0 and 11.5, the adjustment preferably being made with ammonia.
• Organic amines e.g. B. monoethanolamine or triethanolamine can be used.
• the 6-amino-3 ⁇ methyl-phenol as an essential constituent of the hair dye according to the invention results in extremely intense yellow coloring of the hair when exposed to a suitable oxidizing agent. These stains are obviously based on a reaction of the substance mentioned with itself.
• the oxidation dye mentioned can be mixed with conventional developers. ler and coupler components are used, but he does not react with these components under the oxidative conditions of hair coloring.
• the chemical reactions between the existing developer and coupler components therefore generally take place unaffected by the 6-amino-3-methylphenol contained in the hair dye compositions according to the invention.
• the ongoing chemical reaction of this phenol derivative with itself which is associated with a yellowing, is generally not influenced by the conventional developer and coupler components present.
• this independence and parallelism of the dyeing process based on 6-amino-3-methylphenol there is a similarity to dyeings based on substantive aromatic nitro dyes.
• 6-amino-3-methylphenol as a constituent of the hair dye according to the invention now makes it possible to add the direct-acting yellow and orange-coloring aromatic nitro dyes with disadvantageous properties while at the same time improving the dyeing properties replace. As a result, it is now also possible to intensively dye po * rose, chemically damaged hair tips.
• 6-amino ⁇ 3-methyl-phenol a significant step forward, as, for example, at its inputs shows instead of the usual 4-nitro-l, 2-diamino-benzene.
• the nitro compound mentioned has a sensitizing effect and also has a relatively high acute toxicity, while the phenol derivative according to the present invention does not have these disadvantages.
• the strong coloring power of 6-amino-3-methylphenol enables this substance to be used in a very low concentration in the hair dye composition according to the invention.
• the hair colorants according to the present application are used in a known manner by mixing them with an oxidizing agent shortly before use and applying the mixture to the hair.
• Hydrogen peroxide for example as a 6S solution, or its addition compounds with urea, melamine or sodium borate are particularly suitable as oxidizing agents for developing the hair color.
• the application temperatures are in the range from 15 to 50 ° C. After an exposure time of about 15 to 50 minutes, preferably about 30 minutes, the hair is rinsed with water and dried. If necessary, after this rinse, wash with a shampoo and. rinsed with a weak organic acid such as citric acid or tartaric acid.
• the 6-amino-3 ⁇ methylphenol is particularly suitable as a shading dye Achieving natural tones, fashionable shades and particularly matt shades.

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• Life Sciences & Earth Sciences (AREA)
• Health & Medical Sciences (AREA)
• Animal Behavior & Ethology (AREA)
• General Health & Medical Sciences (AREA)
• Public Health (AREA)
• Veterinary Medicine (AREA)
• Birds (AREA)
• Epidemiology (AREA)
• Cosmetics (AREA)

Applications Claiming Priority (2)

Publications (1)

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Family Applications (1)

Country Status (11)

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Citations (4)

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• 1978
  • 1978-08-03 DE DE19782833989 patent/DE2833989A1/de not_active Withdrawn
• 1979
  • 1979-06-19 GR GR59379A patent/GR66829B/el unknown
  • 1979-07-19 AU AU49079/79A patent/AU528286B2/en not_active Ceased
  • 1979-07-23 MX MX178584A patent/MX150656A/es unknown
  • 1979-07-25 EP EP79102635A patent/EP0008039B1/de not_active Expired
  • 1979-07-25 AT AT79102635T patent/ATE1486T1/de not_active IP Right Cessation
  • 1979-07-25 DE DE7979102635T patent/DE2963611D1/de not_active Expired
  • 1979-07-25 WO PCT/EP1979/000058 patent/WO1980000303A1/de not_active Ceased
  • 1979-07-25 JP JP54501170A patent/JPS6348845B2/ja not_active Expired
  • 1979-07-25 US US06/127,507 patent/US4396392A/en not_active Expired - Lifetime
  • 1979-07-30 AR AR277517A patent/AR217946A1/es active
  • 1979-08-02 CA CA333,087A patent/CA1125173A/en not_active Expired

Patent Citations (4)

Non-Patent Citations (2)

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