Agent, useful e.g. for oxidative dyeing of keratin fibers, comprises a developer type oxidative dye precursor, in a cosmetic carrier, where the precursor comprises a coupler type 6-hydroxy-1H-pyridin-2-one compound and/or its salt
Die Erfindung betrifft ein Mittel zum oxidativen Färben von keratinhaltigen Fasern, insbesondere menschlichen Haaren, welches neben mindestens einem Oxidationsfarbstoffvorprodukt vom Entwickler-Typ als Oxidationsfarbstoffvorprodukt vom Kuppler-Typ mindestens eine Verbindung der Formel (I),enthält.Agent (I) comprises at least a developer type oxidative dye precursor, in a cosmetic carrier, where the precursor comprises at least a coupler type 6-hydroxy-1H-pyridin-2-one compound (II) and/or its salt. Agent (I) comprises at least a developer type oxidative dye precursor, in a cosmetic carrier, where the precursor comprises at least a coupler type 6-hydroxy-1H-pyridin-2-one compound of formula (II) and/or its salt. R 1>H, 1-6C-alkyl, 2-6C-alkenyl, 1-6C-hydroxyalkyl, 2-6C-polyhydroxyalkyl, 1-6C-alkoxy-2-6C-alkyl, cyano-1-6C-alkyl, CN or a carboxylic acid R 2>H, 1-6C-alkyl, 2-6C-alkenyl, 2-6C-hydroxyalkyl, 2-6C-polyhydroxyalkyl, 1-6C-alkoxy-2-6C-alkyl, cyano-1-6C-alkyl or aryl-1-6C-alkyl Y 1>N +>(R 6>)(R 7>)(R 8>)-, pyridinium group of formula (a), 3H-imidazol-1-ium group of formula (b), pyridazin-1-ium group of formula (c), pyrimidin-1-ium group of formula (d) or pyrazin-1-ium group of formula (e) either R 3>, R 4>H, 1-6C-alkyl, OH, amino, carboxylic acid, sulfonic acid, 1-6C-alkoxy and/or halo or R 3>R 4>(which are in o-position) : an optionally saturated 5- or 6-membered ring (optionally containing heteroatoms of O, N or S) R 5>1-6C-alkyl, 2-6C-alkenyl, 2-6C-hydroxyalkyl, 1-6C-alkoxy-2-6C-alkyl, cyano-1-6C-alkyl or aryl-1-6C-alkyl R 6>-R 8>1-6C-alkyl, 2-6C-alkenyl, 2-6C-hydroxyalkyl, 1-6C-alkoxy-2-6C-alkyl, cyano-1-6C-alkyl or aryl-1-6C-alkyl, where two of R 6>-R 8>combines together to form a saturated 5- or 6-membered ring optionally containing heteroatoms of O, N or S and X ->anion. An independent claim is included for a multicomponent packaging unit (kit of parts) comprising at least two separate container, where the container (A) comprises (I) and the container (B)
