JP2000351719A - Hair dyeing agent - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a hair dyeing agent having uniform hair dyeing properties and excellent fastness by making the hair dyeing agent include lanolin and its derivative and a specific carboxylic acid. SOLUTION: This hair dyeing agent comprises (A) one or more kinds selected from lanolin and its derivative and (B) one or more selected from a hydroxycarboxylic acid and/or its salt. The content of the component A is 0.1-20 wt.% and that of the component B is 0.01-10 wt.%. The component A is preferably a lanolin fatty acid ester. The component B is one or more kinds selected from an α-hydroxycarboxylic acid, a β-hydroxycarboxylic acid and their salts, more preferably a glycolic acid and/or its salt. The hair dyeing agent is preferably a permanent hair dyeing agent and can contain an arbitrary component useful in an ordinary hair dyeing agent.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a hair dye suitable for permanent hair dye.

[0002]

2. Description of the Related Art In an aging society, the degree to which elderly people enter the society has greatly increased compared to last year. For this reason, in the field of cosmetics, demand for hair dyes and the like for elderly people has been increasing remarkably. From a different point of view, the needs of hair dyes are not only experienced by the elderly but also by the brown hair boom in recent years, and they are increasing so far that they have no experience. In other words, there is a social situation in which people are paying attention to hair dyes. Along with this, various demands have been made on the quality of hair dyes, which has not been considered a problem so far. Among such things, one of the demands which has been particularly high and which has been considered to be technically difficult is uniform hair dyeing and its fastness, along with hair damage by hair dyes. . This is because technically the hair dye material has been completely improved, and no new means of improvement have been found.

[0003] Such efforts to realize uniform hair dyeing and its fastness have so far focused only on the development of hair dyeing materials, and no improvement has been made by devising dosage forms. In addition, there was no idea that such uniform hair dyeing and its fastness could be realized by devising a dosage form.

On the other hand, in the field of skin cosmetics, α-hydroxy acids and / or salts thereof are already contained in wrinkle improving cosmetics because of their effect of improving wrinkles. And it was not known at all that the presence of this product could significantly improve the uniform hair dyeing properties and the fastness of the hair dye. Further, regarding the β-hydroxy acid and / or its salt, the action in the field of cosmetics has been known only as an acid. Further, it is not known that the lanolin derivative is used together with the hydroxycarboxylic acid. Therefore, it is completely known that the combination of the hydroxycarboxylic acid and the lanolin derivative is used in the field of hair dyes. Instead, with such a combination,
It was not known at all that a hair dye excellent in fastness and gentle on hair could be obtained.

[0005]

The present invention has been made under such circumstances, and an object of the present invention is to provide a hair coloring material having uniform hair dyeing properties and excellent fastness.

[0006]

In view of such circumstances, the present inventors have made intensive research efforts in search of a hair dye having uniform hair dyeing properties and excellent fastness. As a result, lanolin and its derivatives have been developed. The present invention has found such properties in hair dyes, characterized by containing one or more selected ones and one or two or more selected from hydroxycarboxylic acids and / or salts thereof. It was completed. Hereinafter, the present invention will be described in detail focusing on its embodiments.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION (1) Lanolin and its derivatives as essential components of the hair dye of the present invention The hair dye of the present invention contains one or more selected from lanolin and its derivatives as essential components. It is characterized by doing. As the lanolin derivative referred to in the present invention,
Lanolin alcohol acetate or lanolin alcohol-2-ethylhexanoate obtained by reacting an alcohol such as lanolin alcohol or cholesterol derived from lanolin with an acyl chloride or the like,
Lanolin alcohol stearic acid esters and the like, linear or branched carboxylic acid esters having 1 to 24 carbon atoms of lanolin alcohol, lanolin-derived fatty acids obtained by reacting with alkyl halides, lanolin fatty acid ethyl esters, lanolin fatty acid isooctyl Preferred examples thereof include linear or branched alkyl esters having 1 to 24 carbon atoms of lanolin fatty acids such as esters, lanolin fatty acid stearyl esters, and lanolin fatty acid octyldodecyl, and lanolin fatty acid cholesteryl. The properties of lanolin are not particularly limited, such as liquid, waxy,
Including any of the intermediates. Some or all of these carbon-carbon bonds may form unsaturated bonds. These lanolins and lanolin derivatives have an excellent moisturizing action, and thus have an action of suppressing damage to hair during hair dyeing. This damage-suppressing action works synergistically with the hydroxy acid penetration promoting action described below, and exerts the action of dyeing the hair without damaging the hair. The most preferred of these lanolins and lanolin derivatives are lanolin fatty acid octyldodecyl esters. This is because the hair protecting effect and the effect of reducing friction on the hair surface are particularly excellent in this case. In the hair dye of the present invention, the content of one or more selected from these lanolins and derivatives thereof is preferably 0.1 to 20 in total.
%, More preferably 0.5 to 10% by weight. If the amount is too small, the protective effect may not be exhibited in some cases, and if the amount is too large, an unfavorable feeling such as stickiness may be exhibited.

(2) Hydroxycarboxylic acid and / or salt thereof which is an essential component of the present invention The hair dye of the present invention comprises hydroxycarboxylic acid such as α-hydroxy acid, β-hydroxy acid and salts thereof and / or the like. It is characterized by containing one or more selected from salts as essential components. As these hydroxycarboxylic acids, any carboxylic acid having a hydroxyl group can be used without any particular limitation, and α-hydroxy acids and β-hydroxy acids are particularly preferable. Among them, as the α-hydroxy acid, any carboxylic acid having a hydroxyl group at the α-position used in the field of cosmetics and the like can be used in the present invention without any particular limitation, and such an acid can be used. Preferred examples of the α-hydroxy acid include glycolic acid, lactic acid, tartaric acid and the like. Many of these α-hydroxy acids have an asymmetric carbon at the α-position and often have stereoisomers such as optical isomers and diastereomers, but in the hair dye of the present invention, the α-hydroxy acid The action of is not stereospecific, so that any conformation can be used. Among these, glycolic acid is particularly preferred in view of its effect. The β-hydroxy acid is not particularly limited as long as it is a carboxylic acid having a hydroxyl group at the β-position. For example, β-lactic acid can be preferably exemplified. Among the α-hydroxy acids and β-hydroxy acids, α-hydroxy acids are more preferred. In addition, as their salts, any physiologically acceptable salts can be used without particular limitation, for example, alkali metal salts such as sodium and potassium, alkaline earth metal salts such as calcium and magnesium, and ammonium. Examples thereof include salts, organic amine salts such as triethanolamine, triethylamine and monoethanolamine, and basic amino acid salts such as lysine and arginine. In the hair dye of the present invention, hydroxycarboxylic acids such as these α-hydroxy acids, β-hydroxy acids and salts thereof and / or
Or one or more selected from salts thereof. These promote the penetration of the hair dye component into the interior of the hair, thereby increasing the depth of the hair dye and improving the uniformity and fastness of the hair dye. In addition, it is said that such excellent penetration promoting action shortens the time required for hair dyeing.
It also has an epoch-making effect and an accompanying effect of suppressing damage to hair after hair dyeing. The preferred content of hydroxycarboxylic acid and / or a salt thereof in the hair dye of the present invention is 0.1.
It is from 0.1 to 10% by weight, more preferably from 0.1 to 5% by weight. This is because if the amount is too small, the effect may not be exhibited, and if the amount is too large, the degree of freedom of mixing other components may be impaired.

(3) Hair dye of the present invention The hair dye of the present invention comprises one or more selected from the above-mentioned lanolin and its derivatives and one or two or more selected from hydroxycarboxylic acids and salts thereof. And characterized in that: The hair dye of the present invention can contain, in addition to the above essential components, optional components that are usually used in hair dyes. Here, the term "hair dye" as used in the present invention is a general term for external preparations used for changing the color tone of hair, and includes semi-permanent hair dyes, permanent hair dyes, hair bleaching agents, these pretreatment agents and post-treatment agents. It encompasses concepts such as treatment agents. Particularly preferred as the hair dye of the present invention is a permanent hair dye containing an oxidation dye and the like. Optional components that can be used in the hair dye of the present invention include, for example, reactive dyes, resorcinol, oxidation dyes such as aminophenol and derivatives thereof, collagen, keratin and derivatives thereof, humectants such as plant extract extracts, amino acids and derivatives thereof and the like. Hair protection ingredients, hydrocarbons such as squalane and microcrystalline wax, esters such as jojoba oil and gay wax, triglycerides such as tallow, olive oil, higher alcohols such as cetanol and oleyl alcohol, stearic acid, oleic acid Such as fatty acids, polyhydric alcohols such as glycerin and 1,3-butanediol, nonionic surfactants, anionic surfactants, cationic surfactants, amphoteric surfactants,
Preferred examples include thickeners such as ethanol and carbopol, preservatives, ultraviolet absorbers, antioxidants, pigments, and powders. Among these, particularly preferred optional components are proteins such as collagen and derivatives thereof, and more preferably, of these components, those having a large molecular weight and those having a small molecular weight are used in combination. As such a combination, there is a combination of Promois W-32R and Promois W-52Q manufactured by Seiwa Kasei Kogyo Co., Ltd.
It is preferable to contain 0.001 to 0.1% by weight in a ratio of 0 to 60:40, since the damage of the hair after hair dyeing can be complemented. Further, it is very advantageous to include oils and fats having moisturizing properties and oils and fats having an action such as improvement of combability, because damage in hair dyeing can be reduced. Examples of such fats and oils include hydrocarbons such as squalane, esters such as jojoba oil and neopentyl glycol diisooctanoate, dimethicone, methylphenyl polysiloxane, silicone elastomer, polyoxyethylene-modified silicone, amodimethicone, Silicones (including emulsions) such as acrylic acid-modified silicones and the like can be mentioned. Of these, silicones are particularly preferred. The hair dye of the present invention can be produced by treating these raw materials according to a conventional method.

[0010]

The present invention will be described in more detail with reference to the following examples, but it goes without saying that the present invention is not limited only to these examples.

<Examples 1 to 3> A permanent hair dye (first liquid) was prepared according to the following formulation. That is, the ingredients were stirred and solubilized to obtain a hair dye. Lanolin fatty acid octyldodecyl 1 part by weight POE lauryl ether 35 parts by weight POE oleyl ether 1 part by weight Coconut oil fatty acid diethanolamide 10 parts by weight 1,3-butanediol 5 parts by weight Ethanol 10 parts by weight Resorcin 1 part by weight Sodium sulfite 1 part by weight 0 1N hydrochloric acid 10 parts by weight metaaminophenol 0.1 parts by weight orthoaminophenol 0.5 parts by weight paraphenylenediamine 1 part by weight α-hydroxy acid * 1 part by weight stearyltrimethylammonium chloride 2 parts by weight monoethanolamine 5 parts by weight water 16.4 parts by weight * Details are shown in Table 1.

[0012]

[Table 1]

<Example 4> The hair dyes of Examples 1 to 3 were subjected to a hair dyeing test using a gray hair bundle. That is, a hair bundle is immersed in the hair dye for 20 minutes in a mixture of the same amount of these hair dyes and a second liquid, 5% hydrogen peroxide solution, washed with water, and then the hair is cut. Is observed under a microscope, and how deeply the hair is dyed,
+: Very deep, +: deep, ±: medium,-: shallow,-
-: The degree of damage after staining is + based on a very shallow standard.
+: No damage, +: Less damage, ±: Relatively little damage,-: Damaged, --- Damage was determined based on the following criteria. Furthermore, the feeling of the hair after dyeing was evaluated on a scale of 1 (rough) to 5 (very smooth). As Comparative Example 1, an α-hydroxy acid was replaced with citric acid, and as Control Example 1, an α-hydroxy acid was replaced with water. Table 2 shows the results. This shows that the hair dye of the present invention is excellent in the effect of penetrating deep into hair and dyeing hair. It can also be seen that glycolic acid is preferred as the α-hydroxy acid.

[0014]

[Table 2]

Examples 5 to 8 Permanent hair dyes (first liquid) were prepared according to the following formulations. That is, the ingredients were stirred and solubilized to obtain a hair dye. Lanolins ** 1 part by weight POE lauryl ether 35 parts by weight POE oleyl ether 1 part by weight Coconut oil fatty acid diethanolamide 10 parts by weight 1,3-butanediol 5 parts by weight Ethanol 10 parts by weight Resorcin 1 part by weight Sodium sulfite 1 part by weight 0 1N hydrochloric acid 10 parts by weight metaaminophenol 0.1 part by weight orthoaminophenol 0.5 part by weight paraphenylenediamine 1 part by weight glycolic acid 1 part by weight stearyltrimethylammonium chloride 2 parts by weight monoethanolamine 5 parts by weight water 16.4 Parts by weight ** Details are shown in Table 3.

[0016]

[Table 3]

<Embodiment 9> Embodiments 5 to 5 are similar to Embodiment 4.
Eight hair dyes were evaluated. Table 4 shows the results. From these and the evaluation of Example 1, it is understood that lanolin fatty acid octyldodecyl is particularly preferable as the lanolin.

[0018]

[Table 4]

<Examples 10 to 12> A permanent hair dye (first liquid) was prepared according to the following formulation. That is, the ingredients were stirred and solubilized to obtain a hair dye. For these,
A hair dyeing test was performed in the same manner as in Example 4, and for the damage,
In comparison with Example 1, ++: significantly less damage than Example 1, +: significantly less damage than Example 1, ±: slightly less damage than Example 1,
-: The protection effect from damage was determined based on the same or higher damage criteria as in Example 1. Table 5 shows the results.
Shown in It is clear from this that it is preferable to combine two types of collagens. Lanolin fatty acid octyldodecyl 1 part by weight POE lauryl ether 35 parts by weight POE oleyl ether 1 part by weight Coconut oil fatty acid diethanolamide 10 parts by weight 1,3-butanediol 5 parts by weight Ethanol 10 parts by weight Resorcin 1 part by weight Sodium sulfite 1 part by weight 0 1N hydrochloric acid 10 parts by weight metaaminophenol 0.1 parts by weight orthoaminophenol 0.5 parts by weight paraphenylenediamine 1 part by weight glycolic acid 1 part by weight stearyltrimethylammonium chloride 2 parts by weight monoethanolamine 5 parts by weight Collagens ** * 0.5 parts by weight water 15.9 parts by weight *** Details are shown in Table 5.

[0020]

[Table 5]

Examples 13 to 15 Permanent hair dyes (first liquid) were prepared according to the following formulation. That is, the ingredients were stirred and solubilized to obtain a hair dye. For these,
Perform a hair dyeing test in the same manner as in Example 4, and
In comparison with Example 12, ++: remarkably preferable as a hair dye from Example 12, +: clearly preferable as a hair dye from Example 12, ±: slightly preferable as a hair dye from Example 12,-: Example 1 Judgment was made on the basis of the same or lower standard. Table 6 shows the results. From this, it is clear that polyoxyethylene-modified silicone is preferable as silicones. Lanolin fatty acid octyldodecyl 1 part by weight POE lauryl ether 35 parts by weight POE (10) oleyl ether 1 part by weight Palm oil fatty acid diethanolamide 10 parts by weight 1,3-butanediol 5 parts by weight Ethanol 10 parts by weight Resorcinol 1 part by weight Sodium sulfite 1 Parts by weight 0.1N hydrochloric acid 10 parts by weight metaaminophenol 0.1 part by weight orthoaminophenol 0.5 part by weight paraphenylenediamine 1 part by weight glycolic acid 1 part by weight stearyltrimethylammonium chloride 2 parts by weight monoethanolamine 5 parts by weight Promois W-52Q 0.1 parts by weight Promois W-32R 0.1 parts by weight Silicones **** 0.5 parts by weight Water 15.4 parts by weight **** Details are shown in Table 6.

[0022]

[Table 6]

[0023]

According to the present invention, it is possible to provide a hair dye having uniform hair dyeing properties and excellent fastness.

Claims (5)

[Claims] 1. A compound selected from lanolin and a derivative thereof.
A hair dye comprising: one or more kinds of hydroxycarboxylic acids and / or salts thereof; and one or more kinds selected from hydroxycarboxylic acids and / or salts thereof. 2. A compound selected from lanolin and a derivative thereof.
2. The hair dye according to claim 1, wherein the hair dye contains lanolin fatty acid ester as the seed or two or more kinds. 3. The method according to claim 1, wherein the hydroxycarboxylic acid and / or a salt thereof comprises one or more selected from α-hydroxycarboxylic acid, β-hydroxy acid and a salt thereof. Or the hair dye according to 2. 4. The hair dye according to any one of claims 1 to 3, wherein the hydroxycarboxylic acid and / or a salt thereof is glycolic acid and / or a salt thereof. 5. The hair dye according to claim 1, which is a permanent hair dye.