Compositions and methods for dyeing keratinous fibers

Details Compositions and methods for dyeing keratinous fibers Compositions and methods for dyeing keratinous fibers

2007-01-02

2007-01-02

Elhilo, Eisa (Department: 1751)

Bleaching and dyeing; fluid treatment and chemical modification

Dyeing involving animal-derived natural fiber material ,...

Hair dyeing

C008S437000, C008S462000, C008S568000, C008S582000, C008S586000, C008S673000

Reexamination Certificate

active

10480908

ABSTRACT:
Pro-dyes of direct dyes having an enzymatically-labile functionality, e.g. glutaramide derivatives of direct dyes of formula (I) or their physiologically acceptable salts,are described, as well as compositions for dyeing keratinous fibers containing these pro-dyes, as well as compositions for dyeing keratinous fibers containing a combination of at least one pro-dye and at least one enzyme capable of cleaving the glutaramide functionality in the pro-dye. A method for dyeing keratinous fibers with the aforementioned dyeing compositions is also described.

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