Hair-dyeing compositions based on para-phenylenediamine and orth

Details Hair-dyeing compositions based on para-phenylenediamine and orth Hair-dyeing compositions based on para-phenylenediamine and orth

1980-07-08

1983-01-25

Moyer, Donald B.

Bleaching and dyeing; fluid treatment and chemical modification

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

Hair dyeing

8410, 8412, 8414, 8416, 8421, A61K 713

Patent

active

043701426

ABSTRACT:
The invention relates to compositions for hair dyeing which contain, as the oxidative dye-stuff, in a cosmetically acceptable medium, para-phenylenediamine and ortho-aminophenol, or their cosmetically acceptable salts, in a ratio para-phenylenediamine/ortho-aminophenol 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 can be detected in the oxidizing dyeing composition.
The compositions according to the invention make it possible to impart background colorations to the hair without the formation of Bandrowsky's base.

REFERENCES:
patent: 3649159 (1972-03-01), Cohen et al.
patent: 4104021 (1978-08-01), Lapidus et al.
patent: 4268264 (1981-05-01), Grollier et al.

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