Hair-dyeing compositions based on para-phenylenediamines

Details Hair-dyeing compositions based on para-phenylenediamines Hair-dyeing compositions based on para-phenylenediamines

1980-07-08

1982-11-30

Moyer, Donald B.

Bleaching and dyeing; fluid treatment and chemical modification

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

Hair dyeing

8410, 8412, 8416, A61K 713

Patent

active

043614213

ABSTRACT:
The invention relates to hair-dyeing compositions based on para-phenylenediamine. These compositions contain, as the oxidation dyestuff, para-phenylenediamine and one or more para-phenylenediamines of the formula ##STR1## in which R denotes alkyl or hydroxyalkyl and R' denotes a hydroxyalkyl group, and also their cosmetically acceptable salts, in a molar ratio para-phenylenediamine/compound(s) of the formula (I), expressed in terms of free bases, which is such that, after the addition of an equal volume of hydrogen peroxide of 20 volumes strength and application to the hair for 30 minutes, no Bandrowsky's base is detected in the oxidizing dyeing composition.
These compositions make it possible to obtain natural background colorations, ranging from black to light chestnut, of very good quality.

REFERENCES:
patent: 3884627 (1975-08-01), Brody et al.
patent: 4268264 (1981-05-01), Grollier et al.
patent: 4277244 (1981-04-01), Bagaut et al.

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