Bleaching and dyeing; fluid treatment and chemical modification – Dyeing involving animal-derived natural fiber material ,... – Hair dyeing
Patent
1985-09-26
1987-09-01
Meyers, Albert T.
Bleaching and dyeing; fluid treatment and chemical modification
Dyeing involving animal-derived natural fiber material ,...
Hair dyeing
8407, 8408, 8410, 8415, 8428, 8435, A61K 713
Patent
active
046906851
ABSTRACT:
The invention relates to a dyeing composition for keratinous fibres containing at least one 4-bis(.beta.-hydroxyethyl)amino-2-nitro-1-(N-substituted amino)benzene compound in which the substitution is C.sub.1 -C.sub.3 alkyl or .beta.-hydroxyethyl; this composition contains as co-solubilization agent at least one dye of formula (II) ##STR1## in which formula: R.sub.2 denotes a C.sub.2 -C.sub.3 hydroxyalkyl group;
REFERENCES:
patent: 3168442 (1965-02-01), Brunner et al.
patent: 4601726 (1987-03-01), Grollier et al.
Cotteret Jean
Genet Alain
Grollier Jean-Francois
Junino Alex
"L'Oreal"
Kilcoyne John M.
Meyers Albert T.
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