Composition for dyeing keratin fibers containing a combination of a p-phenylene derivative and 2,7-naphthalenediol and use thereof for reducing a yellow tinge in a hairstyle
AssigneeLaboratoire Biosthétique Kosmetik GmbH & Co. KG
InventorsWolfgang BALZER, Gunther AUGENSTEIN, Christian ADER
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Abstract
The present invention relates to a composition for dyeing keratin fibers, for example human hair, with oxidative hair dyes. The composition contains as oxidative dyes a combination of a p-phenylenediamine derivative as the developer substance and 2,7-naphthalenediol as the coupler substance in a suitable base. An oxidizing agent such as hydrogen peroxide is used as an additional component for developing the dye. The invention relates to a use of the composition for gray coloration, with a long-lasting reduction of a yellow tinge in a hairstyle of gray, previously dark hair.
Claims7
An agent for oxidatively dyeing keratin fibers, characterized in that said agent contains a combination of a p-phenylenediamine derivative and 2,7-naphthalenediol as the sole couplers or the physiologically compatible water-soluble salts thereof.
Dependencies are inferred from the claim text.