Pyrrolidinyl-substituted para-phenylenediamine derivatives substituted with a cationic radical, and use of these derivatives for dyeing keratin fibres
申请人:——
公开号:US20030229949A1
公开(公告)日:2003-12-18
Novel pyrrolidinyl-substituted para-phenylenediamine derivatives comprising a cationic radical, the dye compositions comprising them and the process for dyeing keratin fibers using these compositions, making it possible to obtain a chromatic, powerful, unselective and fast coloration of keratin fibers.
AZOMETHINE DIRECT DYES OR REDUCED PRECURSORS OF THESE DYES OBTAINED FROM 2-CHLORO-3-AMINO-6-METHYLPHENOL, AND HAIR DYEING METHOD STARTING FROM THESE DYES AND PRECURSORS
申请人:Leduc Madeleine
公开号:US20110041261A1
公开(公告)日:2011-02-24
The invention relates to the dyeing of keratinous fibres using azomethine direct dyes of formula (I) or reduced precursors of azomethine direct dyes of formula (II) obtained from 2-chloro-3-amino-6-methylphenol. A subject-matter of the invention is a dyeing composition comprising at least one chlorinated azomethine direct dye or one reduced precursor of a chlorinated azomethine direct dye, a method for dyeing keratinous fibres which employs the said composition and their uses in the dyeing of keratinous fibres. This composition makes it possible to obtain a particularly stable and consistent colouring.
Dérivés de paraphénylènediamine à groupement pyrrolidinyle substitués par un radical cationique et utilisation de ces dérivés pour la coloration de fibres kératiniques