Bleaching and dyeing; fluid treatment and chemical modification – Dyeing involving animal-derived natural fiber material ,... – Hair dyeing
Patent
1980-07-17
1984-06-05
Ore, Dale R.
Bleaching and dyeing; fluid treatment and chemical modification
Dyeing involving animal-derived natural fiber material ,...
Hair dyeing
8406, 8407, 8408, 8409, 8410, 8411, 8412, D06P 304
Patent
active
044526032
DESCRIPTION:
BRIEF SUMMARY
SUMMARY
At least one 1-(.beta.-hydroxyalkyl)-2,4-diaminobenzene of the general formula ##STR1## wherein R signifies a hydrogen atom, a CH.sub.3 or C.sub.2 H.sub.5 group, is used as coupler substance, also in the form of its inorganic or organic salts, for the oxidative dyeing of hair.
The coupler substance is used in a concentration of approximately 0.01 to 4.0 percent by weight, i.e. as a mixture with the usual developer substances and, in given instances also coupler substances. When mixed with 1,4-diaminobenzene and derivatives of 1,4-diaminobenzenes as developer substances, the aforenoted 1-(.beta.-hydroxyalkyl)-2,4-diaminobenzenes will produce relatively cold, highly intensive blue hues without a reddish proportion. Production may furthermore be made of ashen natural hues and of dark natural hues, particularly of a blue-black.
The object of the invention is a composition and a process for the oxidative dyeing of hair on the basis of a 1-(.beta.-hydroxyalkyl)-2,4-diaminobenzene as coupler substance.
Dyeing compositions on the basis of oxidative dyes have obtained essential importance in the dyeing of hair. The coloration results herein by a reaction of certain developer substances with certain coupler substances in the presence of a suitable oxidant.
It is, above all, 2,5-diaminotoluene, 1,4-diaminobenzene, p-aminophenol, and 3-methyl-4-aminophenol which are being used as developer substances. Preferably used coupler substances are .alpha.-naphtol, resorcin, 4-chlororesorcin, m-aminophenol and derivatives of m-phenylene diamine such as m-toluylene diamine and 2,4-diaminoanisole. These derivatives, and also the m-phenylene diamine itself have obtained significance herein as so-called blue couplers due to their capacity of generating blue tints during oxidative coupling with 1,4-diaminobenzene or, respectively, derivatives of 1,4-diaminobenzene.
Oxidative dyes used for the dyeing of human hair must satisfy numerous special demands. They must be unobjectionable as to toxicology and dermatology and allow dyeing to the desired intensity.
It is furthermore required that a combination of suitable developer and coupler substances will enable the production of a wide range of differing color nuances. Furthermore, the resulting coloring should, to a good degree, be fast to light and resistant to permanent wave treatment, acids, and rubbing. Such hair coloring must, at any rate, remain stable against the influence of light, rubbing, and chemical agents, for a period of at least 4 to 6 weeks.
The aforenoted requirements cannot yet fully be satisfied by the m-phenylenediamine presently used as blue coupler in hair dyeing compositions, nor by its derivatives m-toluylenediamine and 2,4-diaminoanisole and also not by recently recommended blue couplers, such as, for instance, 1-hydroxy-3-amino-6-chlorobenzene and 2,4-diaminophenoxyethanol.
In respect of the above, it was found that compositions for the oxidative dyeing of hair, containing as coupler substance a minimum of one 1-(.beta.-hydroxyalkyl)-2,4-diaminobenzene of the general formula: ##STR2## wherein R may signify a hydrogen atom, a CH.sub.3 or a CH.sub.2 H.sub.5 group, will satisfy to a particular high degree the demands as set, this also when in the form of its organic or inorganic salts.
The 1-(.beta.-hydroxyalkyl)-2,4-diaminobenzenes contained as coupler substances in the hair dye compositions as per invention, are well soluble in water, wherein solubility may even be enhanced by the addition of alkalis, such as, for instance, sodium hydroxide, and they have also an excellent storability particularly as component of the hair dyeing compositions as per invention.
The aforenamed coupler substances of which the 1-(.beta.-hydroxyalkyl)-2,4 diaminobenzene is preferred, should be contained in the hair dyeing compositions in a concentration of approximately 0.01 to 4.0 percent by weight, preferably 0.02 to 2.0 percent by weight.
The hair dyeing substances may, furthermore, additionally contain known coupler substances, particularly .alpha.-naphthol, 3,4-diaminobe
REFERENCES:
patent: 3988110 (1976-10-01), Zviak et al.
patent: 4010200 (1977-03-01), Kalonissis et al.
patent: 4125367 (1978-11-01), Bugaut et al.
patent: 4268264 (1981-05-01), Grollier et al.
Abstract, vol. 652, pp. 289-290, O.G. 11/6/1951.
Husemeyer Hans
Konrad Eugen
Mager Herbert
Ore Dale R.
Striker Michael J.
Wella Aktiengesellschaft
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