Bleaching and dyeing; fluid treatment and chemical modification – Dyeing involving animal-derived natural fiber material ,... – Hair dyeing
Reexamination Certificate
1998-07-01
2001-01-09
Liott, Caroline D. (Department: 1751)
Bleaching and dyeing; fluid treatment and chemical modification
Dyeing involving animal-derived natural fiber material ,...
Hair dyeing
C008S405000, C008S406000, C008S431000, C008S432000, C008S102000, C008S107000, C008S110000, C132S208000, C252S188100, C252S188200, C252S188210, C424S062000, C424S070600
Reexamination Certificate
active
06171347
ABSTRACT:
BACKGROUND OF THE INVENTION
The subject of the present invention is a multicomponent kit for coloring and later removing color from fibers, especially human hair, which includes both compositions for creating a color on the fiber and compositions for reductive removal of the color.
Oxidative dyes are excellently well suited to covering relatively high proportions of gray; the oxidative dyes used for hair that is up to 50% gray are as a rule called oxidative tints, while the oxidative dyes used for a proportion of up to 100% gray or for “lightening” color are as a rule called oxidative colorings.
Direct dyes, especially nitro dyes, are widely used in nonoxidative dyes (so-called tinting compositions). Because of their small size they can penetrate the hair and color it directly—at least in the outer regions. Such tints are very gentle to the hair and as a rule last through several shampoos.
Direct dyes, especially nitro dyes, are also often used in oxidative dyes for producing certain shades or to intensify the color. It is known that colored polymers created oxidatively in the hair are generally very durable in the presence of such external factors as water, shampoo, or light. Depending on the coloring technique, they are so firmly anchored that they generally remain in the hair until the next time the hair is cut. If removal of the color is desired, then relatively aggressive chemicals must be used, such as formaldehyde sulfoxylates, hydrogen peroxide, or hydrogen peroxide addition products. This does enable extensive color removal but is hazardous to the health or involves hair damage.
Partial removal or stripping of nonoxidative tints is as a rule possible simply by washing the hair several times, but a purposeful, complete, immediate removal of the hair color is not possible in this way.
If a particular hair color is to be worn only for a short period of time, the removal of the hair color under mild, gentle conditions, both in the case of oxidative and nonoxidative colorings, is a problem that has not yet been solved.
SUMMARY OF THE INVENTION
It is an object of the present invention to solve the problem of removal of hair color to be worn for only a short period of time under mild, gentle conditions.
According to the invention, this object is attained by using a combination of a suitable reductone, such as ascorbic acid, and/or a thiol and/or a sulfite.
The use of ascorbic acid in hair care products or hair dyes is known per se. In European Patent EP 0 401 454, for example, it is proposed that residues of hydrogen peroxide that remain in human hair after an oxidative treatment be removed with an aqueous solution of ascorbic acid. Effervescent tablets containing ascorbic acid are suitable for this purpose; they are dissolved in water immediately prior to use and the water is then used to rinse the hair.
Ascorbic acid is also used in Published, Non-Examined German Patent Application DE-OS 1 444 216 in a liquid hair dye, in order to make the otherwise unstable liquid composition durable. The oxidative hair dye of Published, Non-Examined German Patent Application DE-OS 3 642 097 also contains ascorbic acid as a stabilizer. It is all the more surprising that ascorbic acid can advantageously also be used for the reductive removal of oxidative colorings from fibers, such as human hair.
The subject of the present invention is a multicomponent kit for coloring and later removing color from fibers, in particular hair, which is characterized in that it contains, as a component (I), compositions for oxidative or nonoxidative coloring of fibers, in particular human hair, and as component (II), it contains compositions for reductive removal of the color with a content of a reductone and/or a thiol and/or a sulfite.
As a rule, the compositions contained in the multicomponent kit of the invention to create an oxidative color (component (I)) comprise a mixture of two components, namely a chromophore composition, which contains the colorant precursors known as developer substance and coupler substance and optionally contains nonoxidative colorants as well, and an oxidant which is added immediately prior to use to form the oxidative dye, while the composition contained in the multicomponent kit of the invention for creating a nonoxidative color (component (I)) are as a rule present in the form of a single-component preparation.
The multicomponent kit according to the invention contains as a developer substance in the chromophore composition, in the case of the oxidative coloring, at least one colorant precursor suitable for forming oxidative dyes. Especially suitable examples for this purpose are 1,4-diaminobenzene(p-phenylenediamine), 1,4-diamino-2-methylbenzene(p-toluylenediamine), 1,4-diamino-2,6-dimethylbenzene, 1,4-diamino-2,5-dimethylbenzene, 1,4-diamino-2,3-dimethylbenzene, 2-chloro-1,4-diaminobenzene, 4-phenylaminoaniline, 4-dimethylaminoaniline, 4-diethylaminoaniline, 4-[di(2-hydroxyethyl)amino]aniline, 4-[(2-methoxyethyl)amino]aniline, 4-[(3-hydroxypropyl)amino]aniline, 1,4-diamino-2-(2-hydroxyethyl)benzene, 1,4-diamino-2-(1-methylethyl)benzene, 1,3-bis[(4-aminophenyl)(2-hydroxyethyl)amino]-2-propanol, 1,8-bis(2,5-diaminophenoxy)-3,6-dioxaoctane, 4-aminophenol, 4-amino-3-methylphenol, 4-methylaminophenol, 4-amino-2-(aminomethyl)phenol, 4-amino-2-[(2-hydroxyethyl)amino]methylphenol, 4-amino-2-(methoxymethyl)phenol, 4-amino-2-(2-hydroxyethyl)phenol, 5-aminosalicylic acid, 2,5-diaminopyridine, 2,4,5,6-tetraaminopyrimidine, 2,5,6-triamino-4-(1H)-pyrimidone, 4,5-diamino-1-(2-hydroxyethyl)-1H-pyrazole, 4,5-diamino-1-(1-methylethyl)-1H-pyrazole, 4,5-diamino-1-[(4-methylphenyl)methyl]-1H-pyrazole, 1-[(4-chlorophenyl)methyl]-4,5-diamino-1H-pyrazole, 4,5-diamino-1-methyl-1H-pyrazole, and 2-aminophenol, 2-amino-6-methylphenol, 2-amino-5-methylphenol, and/or their salts.
The chromophore composition in the case of the oxidative coloring also contains at least one coupler substance suitable for forming an oxidative color. Examples that can be used for this are aromatic m-diamines, m-aminophenols, polyphenols or naphthols. Especially suitable examples are N-(3-dimethylaminophenyl)urea, 2,6-diaminopyridine, 2-amino-4-[(2-hydroxyethyl)amino]anisole, 2,4-diamino-1-fluoro-5-methylbenzene, 2,4-diamino-1-methoxy-5-methylbenzene, 2,4-diamino-1-ethoxy-5-methylbenzene, 2,4-diamino-1-(2-hydroxyethoxy)-5-methylbenzene, 2,4-di[(2-hydroxyethyl)amino]-1,5-dimethoxybenzene, 2,3-diamino-6-methoxypyridine, 3-amino-6-methoxy-2-(methylamino)pyridine, 2,6-diamino-3,5-dimethoxypyridine, 3,5-diamino-2,6-dimethoxypyridine, 1,3-diaminobenzene, 2,4-diamino-1-(2-hydroxyethoxy)benzene, 1-(2-aminoethoxy)-2,4-diaminobenzene, 2-amino-1-(2-hydroxyethoxy)-4-methylaminobenzene, 2,4-diaminophenoxyacetic acid, 3-[di(2-hydroxyethyl)amino]aniline, 4-amino-2-di[(2-hydroxyethyl)amino]-1-ethoxybenzene, 5-methyl-2-(1-methylethyl)-phenol, 3-[(2-hydroxyethyl)amino]aniline, 3-[(2-aminoethyl)amino]aniline, 1,3-di(2,4-diaminophenoxy)propane, di(2,4-diaminophenoxy)methane, 1,3-diamino-2,4-dimethoxybenzene, 2,6-bis(2-hydroxyethyl)aminotoluene, 4-hydroxyindole, 3-dimethylaminophenol, 3-diethylaminophenol, 5-amino-2-methylphenol, 5-amino-4-fluoro-2-methylphenol, 5-amino-4-methoxy-2-methylphenol, 5-amino-4-ethoxy-2-methylphenol, 3-amino-2,4-dichlorophenol, 5-amino-2,4-dichlorophenol, 3-amino-2-methylphenol, 3-amino-2-chloro-6-methylphenol, 3-aminophenol, 2-[(3-hydroxyphenyl)amino]acetamide, 5-[(2-hydroxyethyl)amino]-2-methylphenol, 3-[(2-hydroxyethyl)amino]phenol, 3-[(2-methoxyethyl)amino]phenol, 5-amino-2-ethylphenol, 2-(4-amino-2-hydroxyphenoxy)ethanol, 5-[(3-hydroxypropyl)amino]-2-methylphenol, 3-[(2,3-dihydroxypropyl)amino]-2-methylphenol, 3-[(2-hydroxyethyl)amino]-2-methylphenol, 2-amino-3-hydroxypyridine, 5-amino-4-chloro-2-methylphenol, 1-naphthol, 1,5-dihydroxynaphthalene, 1,7-dihydroxynaphthalene, 2,3-dihydroxynaphthalene, 2,7-dihydroxynap
Kunz Manuela
Le Cruer Dominique
Liott Caroline D.
Striker Michael J.
Wella Aktiengesellschaft
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