Dyeing composition for keratinous fibres containing at least one

Details Dyeing composition for keratinous fibres containing at least one Dyeing composition for keratinous fibres containing at least one

1985-08-09

1990-06-05

Robinson, Douglas W.

Bleaching and dyeing; fluid treatment and chemical modification

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

Hair dyeing

8405, 8407, 8408, 8415, 8426, 8428, 8435, A61K 713

Patent

active

049310666

ABSTRACT:
The invention relates to a dyeing composition for keratinous fibres containing, in a suitable vehicle, at least one 2-nitro-para-phenylenediamine direct dye, in free or salified form and also at least one xanthine derivative of formula (II) ##STR1## where n=0 or 1, R'.sub.3 =H, R'.sub.1, R'.sub.2, R'.sub.4 and R'.sub.5 are substituents having various significances, the said compound of formula (II) being in free or salified form. They can be used for dyeing hair.

REFERENCES:
patent: 3168442 (1965-02-01), Brunner et al.
Chemical Abstracts, 93:241175m, (1980).
Chemical Abstracts, 88:105417m, (1977).

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