Bleaching and dyeing; fluid treatment and chemical modification – Dyeing involving animal-derived natural fiber material ,... – Hair dyeing
Reexamination Certificate
2005-01-11
2005-01-11
Gupta, Yogendra N. (Department: 1751)
Bleaching and dyeing; fluid treatment and chemical modification
Dyeing involving animal-derived natural fiber material ,...
Hair dyeing
C008S406000, C008S407000, C008S408000, C008S409000, C008S410000, C008S411000, C008S412000, C008S421000
Reexamination Certificate
active
06840966
ABSTRACT:
The invention relates to a ready-to-use composition for the oxidation dyeing of keratin fibres, and in particular human keratin fibres such as the hair, comprising, in a medium which is suitable for dyeing, para-phenylenediamine as first oxidation base, at least one para-aminophenol as second oxidation base, 2-methyl-5-N-(β-hydroxyethyl)aminophenol as coupler and at least one enzyme of 2-electron oxidoreductase type in the presence of at least one donor for the said enzyme, and to the dyeing process using this composition.
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Cotteret Jean
De La Mettrie Roland
De Labbey Arnaud
Maubru Mireille
Elhilo Eisa
Finnegan Henderson Farabow Garrett & Dunner L.L.P.
Gupta Yogendra N.
L'Oreal S.A.
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