[EN] AZOMETHINE DIRECT DYES OR REDUCED PRECURSORS OF THESE DYES OBTAINED FROM 2-AMINO-3-HYDROXYPYRIDINE, AND HAIR DYEING PROCESS USING THESE DYES AND PRECURSORS [FR] COLORANTS DIRECTS AZOMÉTHINES OU PRÉCURSEURS RÉDUITS DE CES COLORANTS OBTENUS À PARTIR DE 2-AMINO-3-HYDROXYPYRIDINE ET PROCÉDÉ DE COLORATION CAPILLAIRE UTILISANT CES COLORANTS ET PRÉCURSEURS
AZOMETHINE DIRECT DYES OR REDUCED PRECURSORS OF THESE DYES OBTAINED FROM 2-AMINO-3-HYDROXYPYRIDINE, AND HAIR DYEING PROCESS USING THESE DYES AND PRECURSORS
申请人:L'Oréal
公开号:EP2231607B1
公开(公告)日:2013-07-03
AZOMETHINE DIRECT DYES OR REDUCED PRECURSORS OF AZOMETHINE DIRECT DYES OBTAINED FROM 2-ALKYLRESORCINOLS, AND HAIR DYEING PROCESS USING THESE DYES OR PRECURSORS
申请人:Leduc Madeleine
公开号:US20110041262A1
公开(公告)日:2011-02-24
The invention relates to the dyeing of keratin fibres using azomethine direct dyes or reduced precursors of azomethine direct dyes of formula (I) and (II) obtained from 2-amino-3-hydroxypyridine. The invention relates to a dye composition comprising at least one azomethine direct dye or a reduced precursor of an azomethine direct dye, to a process for dyeing keratin fibres, using the said composition, and to their uses in the dyeing of keratin fibres. This composition allows a particularly stable and fast coloration to be obtained.
US8105394B2
申请人:——
公开号:US8105394B2
公开(公告)日:2012-01-31
[EN] AZOMETHINE DIRECT DYES OR REDUCED PRECURSORS OF THESE DYES OBTAINED FROM 2-AMINO-3-HYDROXYPYRIDINE, AND HAIR DYEING PROCESS USING THESE DYES AND PRECURSORS<br/>[FR] COLORANTS DIRECTS AZOMÉTHINES OU PRÉCURSEURS RÉDUITS DE CES COLORANTS OBTENUS À PARTIR DE 2-AMINO-3-HYDROXYPYRIDINE ET PROCÉDÉ DE COLORATION CAPILLAIRE UTILISANT CES COLORANTS ET PRÉCURSEURS
申请人:OREAL
公开号:WO2009077392A1
公开(公告)日:2009-06-25
The invention relates to the dyeing of keratin fibres using azomethine direct dyes or reduced precursors of azomethine direct dyes of formula (I) and (II) obtained from 2 -amino- 3-hydroxypyridine. The invention relates to a dye composition comprising at least one azomethine direct dye or a reduced precursor of an azomethine direct dye, to a process for dyeing keratin fibres, using the said composition, and to their uses in the dyeing of keratin fibres. This composition allows a particularly stable and fast coloration to be obtained.