JP2000302653A - Oxidative hair dye composition and hair treating agent composition for hair dyeing - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain an oxidative hair dye composition and a hair treating agent composition for hair dyeing having excellent shampoo fastness and capable of exhibiting improved hair dye efficiency by formulating (a derivative of) nicotinic acid. SOLUTION: This oxidative hair dye composition contains nicotinic acid and/or its derivative (preferably, nicotinamide). The composition is preferably formulated by using 5-amino-o-cresol and/or 5-(2-hydroxyethylamino)-2- methylphenol as a coupler. The present invention also provides a hair treating agent composition for hair dyeing containing nicotinic acid and/or its derivative (preferably, nicotinamide), and applicable before and/or after hair dyeing. Further, the compounding amount of nicotinic acid and/or its derivative is preferably 0.01-20 wt.%. Thus an oxidative hair dye agent and a hair treating agent for hair dyeing, which are excellent in hair dyeing efficiency and fastness, can be provided.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hair dye composition having an excellent hair dyeing effect and fastness, and a hair treatment composition for hair dyeing having improved hair dyeing effect and fastness.

[0002]

2. Description of the Related Art Oxidative hair dyes using an oxidative dye such as paraphenylenediamine have been known as hair dyes because of their excellent hair dyeing power and fastness and various color tones. Therefore, it has been widely used. These oxidative hair dyes mainly swell the hair under alkaline conditions, open the hair skin, allow various oxidative dyes to penetrate inside the hair, and oxidatively polymerize using an oxidizing agent such as hydrogen peroxide. The degree of polymerization varies depending on the combination and mixing ratio of the dye, and the color of the polymer also changes. Therefore, various colors can be obtained. Because of the different degrees of polymerization, pigments of various sizes are generated inside the hair. Generally, the dye molecules that have become larger due to polymerization are larger than the gaps between the hair dermals that have passed when the dye penetrates into the hair before polymerizing, and do not flow out of the hair. The color is said to be good. However, in practice, the color of the hair gradually changes or flakes off. This may be due to factors such as ultraviolet rays of sunlight and heat of the dryer, as well as the gradual outflow of the pigment at each shampoo. In addition, there is a problem that when the hair gets wet with sweat or the like, the pigment flows out and stains around the collar of the clothes. In addition, shampoos and the like for improving color durability have been conventionally developed for hair dyes, but a sufficient effect has not yet been obtained.

[0003]

Means for Solving the Problems The present inventors have conducted intensive studies to solve this problem, and as a result, nicotinic acid and / or a derivative thereof have been used in oxidative hair dye compositions and hair treatment agents for hair dyeing. By blending, excellent shampoo fastness,
Furthermore, the present inventors have surprisingly found that the hair dyeing effect is also improved, leading to the present invention.

[0004] That is, the present invention provides an oxidized hair dye composition having excellent fastness and hair dyeing effect, and a hair treatment agent for hair dyeing which improves the effect. Hereinafter, the present invention will be described in detail.

[0005] The nicotinic acid and / or a derivative thereof used in the present invention can be used alone or in combination. Derivatives of nicotinic acid include nicotinamide, nicotinic acid methyl, ethyl nicotinate,
Hexyl nicotinate, benzyl nicotinate and tocopherol nicotinate, and the like. Among these,
Nicotinamide is preferred in view of its effect. The compounding amount is 0.01 to 20% by weight. If the amount is less than 0.01% by weight, a sufficient effect of fastness cannot be obtained. More preferably, it is 0.1 to 10% by weight.

The dye used in the hair dye composition of the present invention is an oxidation dye. The oxidation dye is generally divided into a main intermediate and a coupler, and examples of the main intermediate include one or more of phenylenediamines, aminophenols, diaminopyridines and the like and salts thereof. The salts include hydrochloride, sulfate, acetate and the like. Among them, paraphenylenediamine, paratoluylenediamine, N, N-bis (2-hydroxyethyl) -paraphenylenediamine, N-phenyl-paraphenylenediamine, 4,4'-diaminodiphenylamine, 2-chloroparaphenylenediamine , N, N-dimethylparaphenylenediamine, paraaminophenol,
Orthoaminophenol, paramethylaminophenol, 2,6-dichloroparaphenylenediamine, paraaminophenylsulfamic acid, 2,5-diaminopyridine and salts thereof are preferred from the viewpoints of effects and hair dyeing power. The compounding amount is 0.1% based on the total weight of the first hair dyeing agent.
When the amount is less than 0.01% by weight, a sufficient hair dyeing effect cannot be obtained.
The effect is not as economical as ever. Further, the content is preferably 0.1% by weight to 10% by weight, and more excellent hair dyeing effect can be obtained by adding 0.1% by weight or more. on the other hand,
If it exceeds 10% by weight, the increase in the hair dyeing effect is reduced.

[0007] As couplers, resorcinol,
Pyrogallol, catechol, metaaminophenol, metaphenylenediamine, orthoaminophenol, 2,
4-diaminophenol, 1,2,4-benzenetriol, toluene-3,4-diamine, toluene-2,4
-Diamine, hydroquinone, α-naphthol, 2,6
-Diaminopyridine, 1,5-dihydroxynaphthalene, 5-aminoorthocresol, diphenylamine,
Paramethylaminophenol, phloroglucin, 2,4
-Diaminophenoxyethanol, gallic acid, tannic acid, ethyl gallate, methyl gallate, propyl gallate, quintet, 1-methoxy-2-amino-4- (2-hydroxyethyl) aminobenzene, 5- (2-hydroxyethyl Amino) -2-methylphenol and the like and salts thereof can be blended. This amount is 0.01
If the amount is less than 0.01% by weight, sufficient dyeability cannot be obtained. If the amount exceeds 10% by weight, the effect remains unchanged and is not economical. Furthermore, 0.1% by weight
The content is preferably from 5 to 5% by weight, and more excellent dyeing properties can be obtained by adding 0.1% by weight or more. On the other hand, 5% by weight
When the ratio exceeds the value, the increase in the dyeability is reduced. Others
Those listed in “Quasi-drug raw material standards” (published in June 1991, Yakuji Nippo) can be used as appropriate.

[0008] Among these couplers, hair dyes containing 5-aminoorthocresol or 5- (2-hydroxyethylamino) -2-methylphenol are particularly remarkable in the fastness effect of the present invention. The present inventors have confirmed that the color effluent by shampoo is related to the degree of polymerization of the dye, and molecules having a relatively low degree of polymerization are preferentially effluent. Therefore, since the polymerization degree of the polymer of the main intermediate and 5-aminoorthocresol or 5- (2-hydroxyethylamino) -2-methylphenol is relatively small and the polymer easily flows out, nicotinic acid and / or a derivative thereof is used. It is considered that the difference in dye efflux due to the presence or absence of chromium was significant. However, it is unclear how nicotinic acid and / or its derivatives prevent color efflux.

Further, the hair dye of the present invention can directly contain a dye as a toning agent, and one or more known dyes such as tar dyes and natural dyes can be used in combination. Among them, nitro dyes, azo dyes, nitroso dyes, triphenylmethane dyes, xanthene dyes, quinoline dyes, anthraquinone dyes or indigo dyes are preferable because a good hair dyeing effect is obtained, and these dyes are used as hair dyes. It is best to mix 0.01 to 10% by weight in the composition. 0.
If less than 01% by weight, the hair dyeing effect is insufficient,
On the other hand, when the content is more than 10% by weight, not only the hair dyeing power is not improved, but also the dyeing on the scalp and fingers becomes remarkable, which is not desirable.

Specific examples of direct dyes include nitroparaphenylenediamine, paranitroorthophenylenediamine, paranitrometaphenylenediamine, 2-amino-
4-Nitrophenol, 2-amino-5-nitrophenol, picramic acid, salts thereof, and "Ministerial Ordinance for Specifying Tar Dyes that can be Used in Pharmaceuticals, etc."
One year notice, Ministry of Health and Welfare).

The hair dye composition of the present invention can be in the form of a liquid, an emulsion, a cream, a gel, a paste, or an aerosol foam.

Further, conventionally known components can be added to the oxidative hair dye composition of the present invention as long as the effects of the present invention are not impaired. For example, higher alcohols,
Liquid paraffin, ester oils, fatty acids, silicones and derivatives thereof, petrolatum, polyhydric alcohols, ultraviolet absorbers, preservatives, surfactants, thickeners, pH adjusters, alkali agents, perfumes, pearling agents, etc. .

On the other hand, the hair treatment composition for hair dyeing of the present invention is used before and / or after the hair dyeing operation. When used as a pre-treatment agent, an effect of improving hair coloring and fastness can be expected, and when used as a post-treatment agent, an effect of improving fastness can be expected.

The dosage form of the hair treatment composition for hair dyeing of the present invention can be in the form of cream, emulsion, gel, solution, mist or foam. Among them, from the viewpoint of ease of use and effects, particularly preferably an emulsion, a solution,
It is in the form of a mist or foam. The application method in which the hair treatment composition of the present invention exhibits the most effect is a method in which the composition is uniformly applied to the hair as a pretreatment composition, dried without washing, and then subjected to a hair coloring treatment with a hair coloring composition. Therefore, when the composition is in a viscous form such as a cream or a gel, it cannot be easily dried and requires an operation of washing hair, which is troublesome and may not be able to expect a sufficient effect.

[0015] The hair treatment composition for hair dyeing of the present invention contains oils, surfactants, solvents, humectants, hair protectants, and firmness-giving agents such as amino acids and proteins as long as the effects are not impaired. Additives used in general cosmetics, such as sterilizers / preservatives, ultraviolet absorbers, propellants, and fragrances can be blended.

The method of using the hair treatment composition for hair dyeing of the present invention is such that, when used as a pre-treatment agent, an appropriate amount is applied to the hair before the hair dyeing operation, and then left for a while and then rinsed or not rinsed. Move on to hair dyeing operation. However, as described above, the most effective method is a method in which the composition is uniformly applied to the hair, dried without washing, and then subjected to a hair dyeing treatment with a hair dye. On the other hand, when used as a post-treatment agent, an appropriate amount is applied to the hair after the hair dyeing operation, left for a while, and then washed away. At this time, when the present composition is once dried on the hair and the operation proceeds to the hair washing operation, the effect of improving the fastness becomes more excellent.

The pH of the hair treatment composition for hair dyeing of the present invention
Is appropriately selected depending on the type of the hair dye to be treated. When dyeing hair with an oxidative hair dye, the pH of the hair treatment agent is 2-11.
And more preferably 5-1.
0. If the pH is lower than 2 or higher than 11, irritation to the scalp or the like may be a concern. On the other hand, when dyeing the hair with a semi-permanent hair dye, the pH of the hair treatment agent is preferably in the range of 2 to 8, and more preferably 2.5 to 7. If it is lower than 2, irritation to the scalp or the like is concerned. The method of adjusting the pH is not particularly limited, and may be adjusted with a commonly used acid and / or alkali. Further, the product of the present invention can have a buffering ability.

The hair dye to be used in the hair treatment composition of the present invention includes a permanent hair dye and a semi-permanent hair dye. The dye used for the permanent hair dye is an oxidation dye, a direct dye, or the like, and the dye that can be used for the above-described oxidation hair dye is used. The semi-permanent hair dye contains a direct dye as a main dye. The same direct dye that can be used in the oxidative hair dye can be used.

Among these various dyes, 5-aminoorthocresol or 5-aminoorthocresol is used as a coupler in a permanent hair dye.
A hair dye containing-(2-hydroxyethylamino) -2-methylphenol and a semi-permanent hair dye generally have a remarkable effect of improving the fastness of the hair treatment composition of the present invention.
The reason is considered to be the same as the reason described above. This is inferred from the fact that the effect on semi-permanent hair dyes using only direct dyes, which have relatively small molecules and easily flow out, is generally excellent.

[0020]

BEST MODE FOR CARRYING OUT THE INVENTION Next, the present invention will be described in detail with reference to examples.
The present invention is not limited to the description of the following embodiment.

[0021]

EXAMPLES Examples 1 to 3 (Oxidative hair dye) Examples 1 to 3 of the oxidative hair dye and Comparative Example 1 are shown in Table 1. The compositions of the two agents are shown below.

[0022]

[Table 1]

<Two Agents> Weight% Hydrogen Peroxide (35%) 17.0 Purified Water Appropriate Amount When used, one agent and two agents are mixed in the same amount.

Human hair tresses mixed with white hair which had not undergone a chemical treatment in the past were dyed in Examples 1 to 3 and Comparative Example 1 by a conventional method, respectively, and the degree of dyeing was compared. Thereafter, using a commercially available shampoo (Vigen Treatment Shampoo; manufactured by Hoyu Co., Ltd.), the hair was shampooed 20 times, and the remaining hair color was compared. The evaluation criteria were as shown below and evaluated visually.

<Dyeing Power> ：: Higher dyeing effect than Comparative Example 1 ：: Same dyeing effect as Comparative Example 1 ×: Lower dyeing effect than Comparative Example 1 <Color of foam> ：: Color of foam No: ○: The foam has a slight color. △: The foam has a color. ×: The foam has a deep color. <Change in the color of the hair bundle> ◎: There is no change in the color. ○: There is a slight change in the color. Δ: There is a change in color tone X: The change in color tone is remarkable

The color of the foam is an index for visually judging the amount of dye dissolved from the hair bundle and determining the degree of color fading. Is what you do. Therefore, even if the foam is colored, a change in color tone may not be observed if the degree of color fading is uniform. Table 2 shows the results.

[0027]

[Table 2]

In Examples 1 to 3, the coloring of bubbles during shampooing was small, and the remaining color of hair thereafter was good. Example 3 also showed the result that the hair dyeing effect was higher than that of Comparative Example 1. As described above, it was confirmed that when nicotinamide and its derivative were added to the oxidative hair dye, discoloration due to shampoo could be effectively prevented.

Examples 4 to 7 (Oxidative hair dyes) Table 3 shows Examples 4 to 7 of oxidative hair dyes. Further, the formulations excluding nicotinamide from each of the Examples were Comparative Examples 2 to 5. The above two agents were used.

[0030]

[Table 3]

Human hair tresses mixed with gray hair which had not undergone a chemical treatment in the past were dyed in Examples 4 to 7 and Comparative Examples 2 to 5 by a conventional method, respectively, and the degree of dyeing was compared. For fastness, instead of shampooing, each hair bundle was immersed in a 1% aqueous solution of sodium lauryl sulfate and gently stirred for 30 minutes. Then, the hair bundle was taken out, and the color depth dissolved in the aqueous solution from the remaining hair was observed. Since this process shows the same color fading as that obtained by repeating ordinary shampoo about 20 times, it is used as a simple method for evaluating color fading. The evaluation criteria were as follows and evaluated visually. Table 4 shows the results.

(1) Dyeing power…: Better than Comparative Example 若干: Slightly better than Comparative Example…: Same as Comparative Example ×: Worse than Comparative Example : Residual liquid is slightly colored △: Residual liquid is colored ×: Residual liquid is deeply colored

[0033]

[Table 4]

As a result, it was shown that the hair dyeing power was good, the color was less eluted into the aqueous solution, that is, the fastness was good. Also, it was confirmed that when 5-aminoorthocresol was used as the oxidation dye coupler, the fastness effect was enhanced.

Examples 8 to 10 (Hair treatment agent; hair mist type) Table 5 shows Examples 8 to 10 of hair treatment agents for hair coloring and Comparative Example 6 in which nicotinamide was omitted from Example 8.

[0036]

[Table 5]

Human hair tresses mixed with gray hair which had not been subjected to a chemical treatment in the past were sprayed with Examples 8 to 10 and Comparative Example 6 in appropriate amounts to make the same amount, and dried. The hair bundle was dyed using the following hair dye A, and the degree of dyeing was compared. Thereafter, using a commercially available shampoo (Vigen Treatment Shampoo; manufactured by Hoyu Co., Ltd.), the hair was shampooed 20 times, and the remaining hair color was compared. The evaluation criteria were as shown below and evaluated visually.

Hair dye A (oxidative hair dye) <1 agent>% by weight paraphenylenediamine 0.5 N, N-bis (2-hydroxyethyl) sulfate para-phenylenediamine 2.0 resorcinol 1.0 para-aminophenol 0.5 Metaaminophenol 0.5 5-Aminoorthocresol 0.2 Cetyl alcohol 5.0 Polyethylene glycol 5.0 Polyoxyethylene cetyl ether 8.0 Sodium dodecyl sulfate 1.2 Strong aqueous ammonia 5.0 Ascorbic acid 0 5.5 Purified water qs <2 agents> wt% Hydrogen peroxide (35%) 17.0 Purified water qs When using, mix 1 agent and 2 agents in equal amounts.

Evaluation criteria <Dyeing power> ：: Higher dyeing effect than Comparative Example 6 treatment ○: Equivalent dyeing effect to Comparative Example 6 treatment ×: Less dyeing effect than Comparative Example 6 treatment <Color of foam> ◎: The foam has no color ○: The foam has a slight color △: The foam has a color ×: The foam has a deep color <Change in the color of the hair bundle> ◎: No change in the color ○: The color There is slight change △: There is a change in color tone X: The change in color tone is remarkable

The color of the foam is an index for judging the degree of color fading by visually grasping the amount of the dye dissolved out from the hair tress, and the change in the color tone of the hair tress is used to judge the color that is easily discolored. Is what you do. Therefore, even if the foam is colored, a change in color tone may not be observed if the degree of color fading is uniform regardless of the pigment. Table 6 shows the results.

[0041]

[Table 6]

In Examples 8 to 10, the color retention after shampooing was good. Examples 8 and 10 had higher hair dyeing effects than Comparative Example 6, and showed good results. The results of Examples 8 and 10 having good color retention were obtained not only because the initial hair dyeing effect was better than the comparative example, but also because the coloring of bubbles during shampooing was small. Was confirmed.

[0043] Example 11 and Comparative Example 7 in which nicotinamide was omitted from Example 11 were prepared by a conventional method.

[0044]

An appropriate amount of Example 11 and Comparative Example 7 was applied to a human hair bundle mixed with gray hair which had not been subjected to a chemical treatment in the past so that the same amount was obtained, and dried. The hair tresses were dyed using a hair dye B, and the degree of dyeing was compared. And the aforementioned S
A fastness test using LS was performed to evaluate fastness.
The hair bundle was dried after washing, and the change in color tone was observed.

As a result, Example 11 had a higher hair dyeing effect than Comparative Example 7, and in the fastness test, there were less colors that could be dissolved in the SLS aqueous solution, and the color retention was good.

The hair treatment composition for hair dyeing of the present invention was used as a post-treatment agent. An appropriate amount of Example 11 and Comparative Example 7 was applied to a human hair bundle mixed with gray hair which had not been subjected to a chemical treatment and which had been dyed with the hair dye B, so as to have an equal amount, dried, and then washed away. Then, a robustness test using the aforementioned SLS was performed. As a result, there was almost no change in the dyeability of the hair-dyed hair before and after the treatment in Example 11 and Comparative Example 7. Further, in the robustness test, the results of Example 11 were compared with those of Comparative Example 7.
Was found to have good fastness properties.

[0048]

According to the present invention, an oxidized hair dye excellent in hair dyeing effect and fastness and a hair treatment agent for hair dyeing improving the hair dyeing effect and fastness can be obtained.

Continued on the front page F term (reference) 4C083 AB082 AB412 AC072 AC102 AC122 AC152 AC182 AC302 AC471 AC472 AC552 AC612 AC642 AC692 AC782 AC792 AC851 AC852 AD042 AD282 AD642 CC32 CC36 DD23 EE26

Claims (5)

[Claims] 1. An oxidative hair dye composition comprising nicotinic acid and / or a derivative thereof. 2. The oxidative hair dye composition according to claim 1, wherein the nicotinic acid and / or a derivative thereof is nicotinamide. 3. The oxidative hair dye composition according to claim 1, wherein 5-aminoorthocresol and / or 5- (2-hydroxyethylamino) -2-methylphenol are blended as a coupler. . 4. A hair treatment composition for hair dye containing nicotinic acid and / or a derivative thereof, which is applied before and / or after hair dyeing treatment. 5. The hair treatment composition for hair coloring according to claim 4, wherein the nicotinic acid and / or a derivative thereof is nicotinamide.