Composition for dyeing keratin fibers which contain at least one diaminopyrazole, dyeing process, novel diaminopyrazoles and process for their preparation
Composition for dyeing keratin fibers which contain at least one
申请人:L'Oreal
公开号:US06099592A1
公开(公告)日:2000-08-08
The invention relates to novel compositions for the oxidation dyeing of keratin fibers, comprising at least one specific diaminopyrazole derivative, to the dyeing process using this composition, to novel diaminopyrazole derivatives and to a process for their preparation.
Pyrazole azomethines and colorants containing these compounds
申请人:Gottel Otto
公开号:US20070033742A1
公开(公告)日:2007-02-15
The object of the present invention is new pyrazole azomethines of Formula (I), (Ia), or (Ib),
as well as agents containing these compounds for oxidative coloring of keratin fibers.