VERFAHREN ZUM FÄRBEN VON KERATIN-FASERN MIT AMINOINDOLEN BEIM SÄURE pH UND VERWENDUNG DAVON IN ZUSAMMENSETZUNGEN UND NEUE AMINOINDOL-VERBINDUNGEN

A method for dyeing keratin fibres, wherein a composition is applied to said fibres which contains, in a suitable dyeing medium, at least one coupler having formula (I), wherein R1? is hydrogen or alkyl; R2? and R3? are hydrogen, alkyl, COOR', where R' is alkyl or hydrogen; R4? is hydrogen...

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Bibliographische Detailangaben
Hauptverfasser:	LANG, GERARD, F-95210 SAINT-GRATIEN, FR, LAGRANCE, ALAIN, 77700 COUPVRAY, FR, JUNINO, ALEX, F-93180 LIVRY-GARGAN, FR, COTTERET, JEAN, F-78480 VERNEUIL-SUR-SEINE, FR
Format:	Patent
Sprache:	ger
Schlagworte:	CHEMISTRY HETEROCYCLIC COMPOUNDS HUMAN NECESSITIES HYGIENE MEDICAL OR VETERINARY SCIENCE METALLURGY ORGANIC CHEMISTRY PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES SPECIFIC USE OF COSMETICS OR SIMILAR TOILETPREPARATIONS
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Beschreibung
Zusammenfassung:	A method for dyeing keratin fibres, wherein a composition is applied to said fibres which contains, in a suitable dyeing medium, at least one coupler having formula (I), wherein R1? is hydrogen or alkyl; R2? and R3? are hydrogen, alkyl, COOR', where R' is alkyl or hydrogen; R4? is hydrogen, hydroxyalkyl, alkyl, polyhydroxyalkyl or acetyl or aminoalkyl wherein the amine may be mono- or disubstituted by alkyl; Z1? and Z2? are hydrogen, alkyl, hydroxy, halogen, alkoxy or a salt thereof; at least one precursor of an oxidation hair dye; and at least one oxidizing agent, the pH of the composition applied to the fibres being less than 7.