Bleaching and dyeing; fluid treatment and chemical modification – Dyeing involving animal-derived natural fiber material ,... – Hair dyeing
Patent
1993-11-23
1996-04-09
Skane, Christine
Bleaching and dyeing; fluid treatment and chemical modification
Dyeing involving animal-derived natural fiber material ,...
Hair dyeing
8406, 8407, 8411, 8416, 8587, A61K 713
Patent
active
055057411
DESCRIPTION:
BRIEF SUMMARY
The present invention relates to the use for dyeing keratinous fibers and more particularly human hair of 2-sulfurated metaphenylenediamines, to dyeing compositions containing these 2-sulfurated metaphenylenediamines, to a dyeing process using these compositions and to novel sulfurated metaphenylenediamines and their process of preparation.
Sulfurated derivatives of aromatic amines, in combination with oxidation dye precursors, have already been used for dyeing keratinous fibers.
It is known to dye keratinous fibers and in particular human hair with dyeing compositions containing oxidation dye precursors and couplers.
The couplers, also called the coloring modifiers, make it possible to vary the shades obtained with the oxidation dye precursors.
In the field of dyeing keratinous fibers and in particular human hair, the search is for couplers which, in combination with oxidation dye precursors, make it possible to obtain a wide range of shades, while conferring on hair a coloring having a satisfactory resistance to light, to washing, to bad weather, to perspiration and to the various treatments which hair may be subjected to.
The applicants have discovered, which forms the subject of the invention, that the use of certain 2-sulfurated metaphenylenediamines as couplers with oxidation dye precursors of ortho and/or para type in dyeing compositions for keratinous fibers made it possible to obtain, on application to keratinous fibers and in particular human hair, a wide range of coloring shades exhibiting a particularly outstanding resistance to light, to washing, to bad weather, to perspiration and to the various treatments which hair may be subjected to.
The invention applies to the use of these 2-sulfurated metaphenylenediamines for dyeing keratinous fibers and in particular human hair.
Another subject of the invention consists of oxidation dyeing compositions, intended to be used for dyeing keratinous fibers and in particular human hair, containing at least one oxidation dye precursor of ortho and/or para type and at least certain 2-sulfurated metaphenylenediamines.
The invention also applies to the process for coloring keratinous fibers and in particular human hair using such a composition mixed with an oxidizing agent.
Another subject of the invention is novel 2-sulfurated metaphenylenediamines and their process of preparation.
Other subjects of the invention will become apparent on reading the description and examples which follow.
The subject of the present invention is thus the use, for dyeing keratinous fibers and in particular human hair, of at least one 2-sulfurated metaphenylenediamine of general formula: ##STR2## in which: Z represents a C.sub.1 -C.sub.18 alkyl radical, an aralkyl radical in which the alkyl radical is C.sub.1 -C.sub.6, a C.sub.1 -C.sub.6 monohydroxyalkyl or C.sub.2 -C.sub.6 polyhydroxyalkyl radical, an aryl radical or an aminoalkyl radical of formula: ##STR3## in which n is an integer between 1 and 6 inclusive and R.sub.4 and R.sub.5, which are identical or different, represent a hydrogen atom or a C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 hydroxyalkyl or C.sub.1 -C.sub.6 acyl radical; atom, a C.sub.1 -C.sub.6 alkyl radical, a C.sub.1 -C.sub.6 monohydroxyalkyl radical, a C.sub.2 -C.sub.6 polyhydroxyalkyl radical, a C.sub.1 -C.sub.6 monocarbamoylalkyl radical, a C.sub.1 -C.sub.6 dialkylcarbamoyl radical, a C.sub.1 -C.sub.6 aminoalkyl radical, a C.sub.1 -C.sub.6 acyl radical, a C.sub.2 -C.sub.6 carbalkoxy radical, a carbamoyl radical or a C.sub.1 -C.sub.6 monoalkylcarbamoyl radical; nitrile radical, an amide radical, a C.sub.1 -C.sub.4 fluoroalkyl radical or a radical --COOR where R represents a hydrogen atom or a C.sub.1 -C.sub.4 alkyl radical, and the acid salts corresponding to the compounds of formula (I).
Among the preferred meanings of the Z radical in the sulfurated metaphenylenediamines of general formula (I) according to the invention, the C.sub.1 -C.sub.18 alkyl radical denotes the methyl, ethyl, propyl, butyl, dodecyl or hexadecyl radicals; the aralkyl radical denotes the
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Genet Alain
Junio Alex
Lagrange Alain
"L'Oreal"
Dusheck Caroline L.
Skane Christine
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