1257406-54-4Relevant articles and documents
AZOMETHINE DIRECT DYES OR REDUCED PRECURSORS OF THESE DYES OBTAINED FROM SECONDARY, N-ALKYLAMINATED PARA-PHENYLENEDIAMINES, METHOD OF HAIR DYEING USING THESE DYES
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Page/Page column 26, (2010/12/29)
The invention relates to the dyeing of keratin fibres using azomethine direct dyes or reduced precursors of azomethine direct dyes obtained from secondary, N-alkylaminated para-phenylenediamines. The subject of the present application is direct dyes derived from 2-[{2-[(4-aminophenyl) amino] ethyl}(2-hydroxyethyl) amino]ethanol, a dye composition comprising the direct dyes, a method for dyeing keratin fibres using the direct dyes and the use of these dyes for dyeing keratin fibres. This composition makes it possible to obtain a particularly stable and persistent colouring.