Processes for dyeing keratinous fibers with compositions which c

Details Processes for dyeing keratinous fibers with compositions which c Processes for dyeing keratinous fibers with compositions which c

1996-12-05

1998-05-26

Lieberman, Paul

Bleaching and dyeing; fluid treatment and chemical modification

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

Hair dyeing

8407, 8408, 8423, 8574, A61K 713

Patent

active

057558299

ABSTRACT:
The subject of the invention is a composition for the oxidation dyeing of keratinous fibers containing at least one N-substituted 4-hydroxyindoline derivative as coupler and at least one oxidation base. The invention also relates to new N-substituted 4-hydroxyindoline derivatives, to their process of synthesis, to their use as couplers for the oxidation dyeing of keratinous fibers, in combination with at least one oxidation base, and to the dyeing processes in which they are used.

REFERENCES:
patent: 3649160 (1972-03-01), Kalopissis et al.
patent: 5427588 (1995-06-01), Lagrange et al.

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