Bleaching and dyeing; fluid treatment and chemical modification – Dyeing involving animal-derived natural fiber material ,... – Hair dyeing
Patent
1995-04-06
1996-12-03
Lieberman, Paul
Bleaching and dyeing; fluid treatment and chemical modification
Dyeing involving animal-derived natural fiber material ,...
Hair dyeing
8406, 8407, 8409, 8421, A61K 713
Patent
active
055803571
DESCRIPTION:
BRIEF SUMMARY
The present invention relates to a composition for the dyeing of keratinous fibres, and in particular of human keratinous fibres, comprising, in combination, at least one para-aminophenol, at least one 2-substituted 5-aminophenol and at least one ortho-aminophenol, and to the dyeing process using such a composition and incorporating development with an oxidizing agent.
It is known to dye keratinous fibres, and in particular human hair, with dyeing compositions which contain oxidation dye precursors, in particular ortho- or para-phenylenediamines, ortho- or para-aminophenols, generally known as "oxidation bases", and coupling agents also known as coloration modifiers, more particularly aromatic meta-phenylenediamines, meta-aminophenols and meta-diphenols, which make it possible to modify and to enrich with glints the "foundation" colours obtained by the condensation products of the oxidation bases.
In the field of the oxidation dyeing of hair, oxidation dye precursors and coupling agents are sought which make it possible to impart to the hair a coloration which has a satisfactory resistance to light, to washing, to inclement weather, to perspiration and to the various treatments to which hair may be subjected, and which make it possible to obtain a wide range of colour shades.
3-Methyl-para-aminophenol and its use in dyeing compositions for keratinous fibres, in combination with 2-methyl-5-aminophenol as coupling agent and para-phenylenedisunine or 2,5-diaminotoluene, are known and described in U.S. Pat. No. 4,883,656.
However, such a combination, on application to keratinous fibres, does not provide a sufficiently resistant coloration.
The Applicant has just discovered, and this forms the subject of the invention, that the use of 3-methyl-para-aminophenol, 2-methyl-para-aminophenol and/or 2-hydroxymethyl-para-aminophenol as oxidation dye precursors, in combination with, as coupling agent, a 5-aminophenol substituted in the 2-position chosen from the 2-methyl-5-aminophenols of formula (I) defined below and, as oxidation dye precursor, an ortho-aminophenol chosen from ortho-aminophenol and 3-acetylamino-6-aminophenol, makes it possible to obtain, in the presence of an oxidizing agent and in an acidic or alkaline medium, after application to keratinous fibres and in particular to human hair, colorations with warm and coppery shades and having a resistance to light, to washing, to inclement weather, to perspiration and to the various treatments to which hair may be subjected, and which is particularly noteworthy and superior to that of the prior art.
The subject of the present invention is thus a composition for the dyeing of keratinous fibres, in particular human keratinous fibres such as hair, comprising, in a suitable dyeing medium:
at least one oxidation dye precursor chosen from 3-methyl-para-aminophenol, 2-methyl-para-aminophenol and 2-hydroxymethyl-para-aminophenol and their addition salts with an acid;
at least one coupling agent chosen from the 2-methyl-5-aminophenols of formula (I) below: ##STR2## in which R denotes a hydrogen atom, a methyl or ethyl radical or a .beta.-hydroxyethyl or .gamma.-hydroxypropyl group, as well as their addition salts with an acid; and
at least one ortho-aminophenol, as oxidation dye precursor, chosen from ortho-aminophenol and 3-acetylamino-6-aminophenol, or one of their addition salts with an acid.
The subject of the invention is also a dyeing agent containing several components, of which the first component contains oxidation dye precursors and the coupling agent defined above and the second component contains an oxidizing agent.
Another subject of the invention relates to the ready-to-use composition, containing the various agents used for dyeing keratinous fibres defined above and an oxidizing agent, in an alkaline or acidic medium.
The invention also concerns a process for the dyeing of keratinous fibres, and in particular human keratinous fibres such as hair, which consists in applying to these fibres:
at least one oxidation dye precursor chosen from 3-methyl-para-a
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Audousset Marie P.
Cotteret Jean
Lagrange Alain
Vandenbosche Jean J.
"L'Oreal"
Dusheck Caroline L.
Lieberman Paul
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