Dyeing compositions for keratinous fibres based on para-phenylen

Details Dyeing compositions for keratinous fibres based on para-phenylen Dyeing compositions for keratinous fibres based on para-phenylen

1995-06-05

1996-11-26

Lieberman, Paul

Bleaching and dyeing; fluid treatment and chemical modification

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

Hair dyeing

8406, 8408, 8410, 8411, 8412, 8423, A61K 713

Patent

active

055780873

ABSTRACT:
Processes for the oxidative dyeing of keratinus fibers with compositions which comprise benzimidazole derivatives as couplers, at least one metaphenylenediaxnine and at least one para or ortho oxidation dye precursor, the benzimidazole derivative corresponding to the formula: ##STR1## in which: R.sub.1 represents a hydrogen atom or a C.sub.1 -C.sub.4 alkyl radical;

REFERENCES:
patent: 3658455 (1969-06-01), Kalopissis et al.
patent: 5203875 (1993-04-01), Tuloup et al.

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