Bleaching and dyeing; fluid treatment and chemical modification – Dyeing involving animal-derived natural fiber material ,... – Hair dyeing
Patent
1995-04-13
1996-03-19
Lieberman, Paul
Bleaching and dyeing; fluid treatment and chemical modification
Dyeing involving animal-derived natural fiber material ,...
Hair dyeing
8406, 8408, 8411, 8412, 8416, A61K 713
Patent
active
055000223
ABSTRACT:
Process for dyeing keratinous fibres, especially human keratinous fibres such as the hair, consisting in applying to these fibres a composition containing, in a medium suitable for dyeing, at least 2,6-dimethyl-l,4-diaminobenzene and/or 2,3-dimethyl-1,4-diaminobenzene and/or 2,6-diethyl-1,4-diaminobenzene, as well as its salts, and an oxidising agent, the pH of the composition applied to the fibres being less than 7 and the said composition not containing iodide ions in a sufficient quantity to oxidise the oxidation dye precursor.
"L'Oreal"
Dusheck Caroline L.
Lieberman Paul
LandOfFree
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