Bleaching and dyeing; fluid treatment and chemical modification – Dyeing involving animal-derived natural fiber material ,... – Hair dyeing
Patent
1992-04-20
1994-01-18
Skaling, Linda
Bleaching and dyeing; fluid treatment and chemical modification
Dyeing involving animal-derived natural fiber material ,...
Hair dyeing
8407, 8408, 8410, 8412, 8414, 8416, 8421, 8423, A61K 713
Patent
active
052796205
ABSTRACT:
Tinctorial composition for keratin fibers, containing a para-type precursor of an oxidation colorant associated with a heterocyclic coupler of formula: ##STR1## where R.sub.1 .dbd.H, or C.sub.1 -C.sub.4 alkyl; R.sub.2 and R.sub.3, which may be identical or different, denote H, C.sub.1 -C.sub.4 alkyl, carboxyl or alkoxycarbonyl; OH is in position 6 or 7;
and/or a salt of such a coupler.
This composition allows the hair to be dyed with a color having a good resistance to light, washing, bad weather and perspiration.
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Junino Alex
Lang Gerard
"L'Oreal"
Skaling Linda
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