Agents used for dyeing keratinous fibers

Details Agents used for dyeing keratinous fibers Agents used for dyeing keratinous fibers

2006-09-12

2006-09-12

Elhilo, Eisa (Department: 1751)

Bleaching and dyeing; fluid treatment and chemical modification

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

Hair dyeing

C008S406000, C008S407000, C008S408000, C008S409000, C008S575000, C008S576000, C008S607000, C008S608000, C544S242000

Reexamination Certificate

active

07105032

ABSTRACT:
A composition for dyeing keratin-containing fibers, particularly human hair, comprising 1,2-dihydropyrimidinium derivatives in combination with reactive carbonyl compounds and methods of employing this combination for dyeing keratin-containing fibers, for color restoration or shading keratin-containing fibers that are already dyed.

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