Application of cation mono-benzol nitrophenylamine in keratin fiber dyeing dye composition and dyeing method

Application Number: 00102528
Application Date: 2000.01.07
Publication Number: 1267510
Publication Date: 2000.09.27
Priority Information: 1999/1/8 FR 99/00151
International: A61K7/13
Applicant(s) Name: L'Oreal
Inventor(s) Name: A. Gnit;A. Lagraing
Patent Agency Code: 72001
Patent Agent: ma chongde
Abstract The subject of the invention is dyeing compositions containing cationic monobenzene nitroanilines having at least one cationic charge delocalized over an unsaturated 5-membered polynitrogenous heterocycle, their use as direct dye compositions for the dyeing of keratinous substances, in particular human keratinous fibers, such as the hair, and the direct dyeing processes employing these compositions.