1161138-59-5Relevant articles and documents
AZOMETHINE DIRECT DYES OR REDUCED PRECURSORS OF AZOMETHINE DIRECT DYES OBTAINED FROM 4,5 DIAMINOPYRAZOLE, AND HAIR DYEING PROCESS USING THESE DYES OR PRECURSORS
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Page/Page column 22, (2009/07/18)
The invention relates to the dyeing of keratin fibres using azomethine direct dyes obtained from 4, 5-diaminopyrazole derivatives. The invention relates to a dye composition comprising at least one azomethine direct dye or precursor of an azomethine direc