JP7014412B2 - Oxidation hair dye - Google Patents

Description

The present invention relates to an oxidative hair dye that reduces unpleasant odors derived from ammonia and monoethanolamine.

The oxidative hair dye is a kind of permanent hair dye, and is generally composed of one agent containing an oxidative dye and an alkaline agent and two agents containing hydrogen peroxide. The hair dyeing mechanism of the oxidative hair dye is that the oxidative dye in one agent is oxidized by hydrogen peroxide in the second agent to develop color. In addition, hydrogen peroxide in the two agents also has a function of oxidatively decomposing hair melanin and decolorizing hair. Further, the alkaline agent in one agent has a function of facilitating the penetration of the oxidative dye into the hair by swelling the hair.

As the alkaline agent, ammonia, monoethanolamine and the like are mainly used. However, since one agent containing these alkaline agents has a strong unpleasant odor, there is a problem that not only the practitioner such as a beautician and a barber but also the treated side becomes uncomfortable or feels sick. there were. Therefore, various techniques have been proposed so far in order to reduce the unpleasant odor derived from ammonia and monoethanolamine contained in the oxidative hair dye.

For example, so far, a first agent composition for hair dyeing (Patent Document 1), which contains a guanidium salt, an alkanolamine, ammonia and a higher alcohol, hydrocarbons, alcohols, phenols and aldehydes. And / or at least one fragrance selected from the group consisting of acetals, ketones and / or ketals, ethers, synthetic musk, nitrogen-containing and / or sulfur-containing and / or halogen-containing compounds, and natural fragrances. It is characterized by containing a masking composition for hair cosmetics (Patent Document 2), polyoxyethylene hydrogenated castor oil, a cationic surfactant, ammonium carbonate, and cysteine and / or a salt thereof. Techniques such as a composition for hair bleaching or an oxidative hair dye (Patent Document 3) have been proposed. However, the current situation is that the unpleasant odor derived from ammonia or monoethanolamine has not been sufficiently reduced.

Further, as another conventional technique, there is one oxidized hair dye containing polymethylsilsesquioxane and ammonia and monoethanolamine as an alkaline agent (Patent Document 4), which has an unpleasant odor derived from ammonia or monoethanolamine. It is a technology that has the effect of reducing. However, polymethylsilsesquioxane is a powdery silicone polymer and does not have the biodegradability of natural polymers. In addition, synthetic polymers with a small particle size, such as polymethylsilsesquioxane, may flow out into the sea through drainage ditches and affect marine life by rinsing with water after using cosmetics containing them. Has been pointed out in recent years. Therefore, it has been desired to improve the technology with less burden on the environment.

The porous cellulose powder has a smooth feel, low irritation to the skin, and breathability, and is used in various cosmetics as a feel improver. However, it has not been known so far that the porous cellulose powder has an effect of reducing the unpleasant odor derived from ammonia and monoethanolamine contained in the oxidative hair dye.

Japanese Unexamined Patent Publication No. 1998-0252330 Japanese Patent Application Laid-Open No. 2003-137758 Japanese Unexamined Patent Publication No. 2007-001890 Patent No. 3930422

An object of the present invention is to provide an oxidative hair dye having reduced unpleasant odors derived from ammonia and monoethanolamine.

That is, the present invention is characterized by containing (a) a porous cellulose powder having an average particle size of 1 to 20 μm and (b) at least one selected from ammonia and monoethanolamine. It is to provide.

The present invention also provides an oxidative hair dye, characterized in that (a) the content of the porous cellulose powder having an average particle size of 1 to 20 μm is 0.01 to 10% by weight. ..

Further, the present invention comprises (b) an oxidative hair dye containing at least one selected from ammonia and monoethanolamine, and (a) a porous cellulose powder having an average particle size of 1 to 20 μm. , Provided is a method for reducing an unpleasant odor derived from ammonia and monoethanolamine contained in an oxidative hair dye.

The oxidative hair dye of the present invention reduces unpleasant odors derived from ammonia and monoethanolamine.

In the present invention, (a) the porous cellulose powder having an average particle size of 1 to 20 μm may be any one usually used for cosmetics, and is produced from cellulose or a cellulose ester. (A) The shape of the porous cellulose powder having an average particle diameter of 1 to 20 μm is not particularly limited, but a spherical shape is preferable from the viewpoint of no squeaky feeling or stiff feeling after the treatment on the hair.

(A) The average particle size of the porous cellulose powder is in the range of 1 to 20 μm. If the average particle size is less than 1 μm, the reduction of unpleasant odors derived from ammonia and monoethanolamine, which is the object of the present invention, cannot be sufficiently achieved. On the other hand, when the average particle size exceeds 20 μm, the treated hair becomes squeaky and stiff. The average particle size in the present invention can be obtained by measuring the particle size distribution by a laser diffraction / scattering method.

(A) As the porous cellulose powder having an average particle size of 1 to 20 μm, a commercially available one may be used, for example, Cellflow C-25 (JNC Corporation, average particle size 8 to 12 μm), Cellflow TA-25 ( JNC Corporation, average particle diameter 4-12 μm) and the like can be used.

(A) The content of the porous cellulose powder having an average particle size of 1 to 20 μm is not particularly limited, but is preferably 0.01 to 10% by weight. If it is less than 0.01% by weight, the reduction of unpleasant odor derived from ammonia and monoethanolamine, which is the object of the present invention, may not be achieved. On the other hand, if it exceeds 10% by weight, the treated hair may be squeaky and stiff.

At least one selected from (b) ammonia and monoethanolamine in the present invention is an alkaline agent in a normal oxidative hair dye, and plays a role of infiltrating the oxidative dye into the hair by swelling the hair. It is contained in the oxidative hair dye.

(B) The content of at least one selected from ammonia and monoethanolamine is not particularly limited, but is preferably 2.0 to 5.0% by weight. If it is less than 2.0% by weight, the color development of the oxidative dye becomes insufficient, which may affect the dyeability. On the other hand, if it exceeds 5.0% by weight, it may affect the stability of the oxidative hair dye over time.

The oxidative hair dye of the present invention contains an oxidative dye as a dye. As the oxidation dye, for example, para-phenylenediamine, toluene-2,5-diamine, ortho-aminophenol, para-aminophenol and the like can be contained. These oxidation dyes may be used alone or in combination of two or more.

Further, in the oxidative hair dye of the present invention, as dyes other than the oxidative dye, for example, couplers such as resorcin, 5-aminoorthocresol and metaaminophenol, and direct dyes such as nitroparaphenylenediamine and paranitroorthophenylenediamine. Can also be contained.

Further, in the oxidative hair dye of the present invention, other components such as oils and fats, waxes, hydrocarbons, polyhydric alcohols, amides, silicones, cationic surfactants and anionic surfactants are included. , Amphoteric surfactant, nonionic surfactant, cationic polymer, anionic polymer, amphoteric polymer, amino acids, vitamins, chelating agents, preservatives, stabilizers, antioxidants, plant extracts , Pigments, fragrances, pigments, UV absorbers and the like.

The dosage form of the oxidative hair dye of the present invention is not particularly limited, and for example, a milky liquid, a cream, a paste, or the like can be adopted.

Test 1 Evaluation of unpleasant odor derived from ammonia using a detector tube (test method)
1 g of porous cellulose powder ^{* 1} having an average particle size of 1 to 20 μm was measured in an Erlenmeyer flask, and the Erlenmeyer flask was gently shaken so that the test substance spreads on the bottom surface of the flask. 0.2 g of ammonia water (25%) was measured in an airtight vial containing a 100 mL line, immediately plugged, and left in a constant temperature bath at 40 ° C. for 2 hours or more. Then, 1 mL of the gas phase in the airtight vial was aspirated with a gas tight syringe, placed in an Erlenmeyer flask, immediately covered with aluminum foil, and left at room temperature for 30 minutes. The amount of ammonia in the Erlenmeyer flask gas phase was measured with an ammonia measurement detector tube (3L, Gastec Co., Ltd.), and the results are shown in Table 1. The suction amount was 50 mL, and the value calculated from the value after resting for 30 seconds after suction was taken as the amount of ammonia in the Erlenmeyer flask gas phase.
* 1 Cell Flow C-25 (JNC Corporation)

Test 2 Evaluation of unpleasant odor derived from monoethanolamine using a detector tube (test method)
0.2 g of an 80% monoethanolamine aqueous solution was weighed in a 150 mL glass container, immediately covered with aluminum foil, and left at 40 ° C. for 2 hours. Then, 1 g of the porous cellulose powder having an average particle size of 1 to 20 μm is weighed, immediately covered with aluminum foil, lightly shaken so that the test substance spreads near the bottom surface, and then further at 40 ° C. 2 I left it for a while. The amount of amines in the gas phase of the glass container was measured with a detector tube for measuring amines (180L, Gastec Co., Ltd.), and the results are shown in Table 1. The suction amount was 100 mL, and the value calculated from the value after standing still for 1 minute after suction was taken as the amount of monoethanolamine in the gas phase of the glass container.

As shown in Table 1, it was clarified that the porous cellulose powder has an action of reducing an unpleasant odor derived from ammonia and monoethanolamine.

Hereinafter, the present invention will be described in detail with reference to examples, but the technical scope of the present invention is not limited thereto. The content is shown in% by weight unless otherwise specified.

One cream-type oxidative hair dye having the composition shown in Table 2 was prepared by the following method.

(Preparation method)
Ingredients 1 to 10 are uniformly mixed and heated to 80 ° C. to prepare an oil phase. Ingredients 11 to 14 are uniformly mixed and heated to 80 ° C. to form an aqueous phase. An aqueous phase is added to the oil phase to emulsify, and the mixture is stirred at 80 ° C. for 20 minutes, and then cooling is started. The component 15 was added at 68 ° C., the component 16 was added at 40 ° C., and the cooling was stopped at 30 ° C. to obtain one oxidative hair dye.

Using one oxidative hair dye shown in Table 2, sensory evaluation was performed on the unpleasant odor derived from ammonia and monoethanolamine and the feel of hair by the following method.

Test 3 Evaluation of unpleasant odor derived from ammonia and monoethanolamine by sensory (test method)
Using one oxidative hair dye shown in Table 2, sensory evaluation of odor was performed by 10 expert panels, and the results are shown according to the following criteria.

(Evaluation criteria)
⊚: 9 or 10 people evaluated that they did not feel an unpleasant odor.
◯: 6 to 8 people evaluated that they did not feel an unpleasant odor.
Δ: 3 to 5 people evaluated that they did not feel an unpleasant odor.
×: Two or less people evaluated that they did not feel an unpleasant odor.

Test 4 Sensory hair feel evaluation (test method)
Two oxidative hair dyes shown below were prepared, and 1 g of each of the oxidative hair dyes shown in Table 2 was mixed and applied to about 1 g of hair bundles. After leaving at 30 ° C. for 20 minutes, the hair bundle was washed with water and dried with a dryer. Based on the criteria shown below, 10 specialist panels evaluated the squeaky and stiff feeling of hair.

(2 oxidative hair dyes)
(Ingredient) (% by weight)
(1) Polyoxyethylene cetyl ether 8.0
(2) Cetanol 9.0
(3) Stearyl alcohol 1.0
(4) Residual purified water (5) Appropriate amount of chelating agent (6) Appropriate amount of pH adjuster (7) Hydrogen peroxide solution (35%) 15.0

(Evaluation criteria)
⊚: 9 or 10 people evaluated that there was no squeaky or stiff feeling in the hair.
◯: 6 to 8 people evaluated that there was no squeaky or stiff feeling in the hair.
Δ: 3 to 5 people evaluated that there was no squeaky or stiff feeling in the hair.
×: 2 or less people evaluated that there was no squeaky or stiff feeling in the hair.

※２ アンモニア水（２５％）（大盛化工株式会社）
※３ ８０％モノエタノールアミン液（大阪佐々木化学株式会社）

* 2 Ammonia water (25%) (Omori Kako Co., Ltd.)
* 3 80% monoethanolamine solution (Osaka Sasaki Chemical Co., Ltd.)

As shown in Examples 1 to 6 of Table 2, in the case where the oxidative hair dye contains the porous cellulose powder, the unpleasant odor derived from ammonia is remarkably reduced, and the squeaky feeling and stiffness of the hair are significantly reduced. It was found that there was no feeling and the feeling was good. In particular, in Examples 2 to 5 in which the content of the porous cellulose powder was 0.01 to 10% by weight, particularly excellent effects were observed in the evaluation of the unpleasant odor and the evaluation of the feel of the hair. In addition, the unpleasant odor during the treatment reflected the degree of the unpleasant odor of the oxidative hair dye, and no effect was observed on the hair dye color after application. On the other hand, as shown in Comparative Examples 1 and 2, when the porous cellulose powder was not contained, satisfactory results could not be obtained in the evaluation of the unpleasant odor derived from ammonia and the evaluation of the feel of the hair.

Further, as shown in Examples 7 to 12 of Table 2, in the case where the oxidative hair dye contains the porous cellulose powder, the unpleasant odor derived from monoethanolamine is remarkably reduced, and the unpleasant odor of the hair is remarkably reduced. It was found that there was no squeaky or stiff feeling and the feel was good. In particular, in Examples 8 to 11 in which the content of the porous cellulose powder was 0.01 to 10% by weight, particularly excellent effects were observed in the evaluation of the unpleasant odor and the evaluation of the feel of the hair. On the other hand, as shown in Comparative Examples 3 and 4, when the porous cellulose powder was not contained, satisfactory results were not obtained in the evaluation of the unpleasant odor derived from monoethanolamine and the evaluation of the feel of the hair.

Next, other examples of the present invention will be shown. In each case, the effect of reducing unpleasant odors derived from ammonia and monoethanolamine, and the lack of squeaky and stiff hair sensations were excellent.

(Example 13: 1 milky liquid oxidative hair dye)
(Ingredient) (% by weight)
(1) Para-aminophenol 0.8
(2) Orthoaminophenol 0.4
(3) 5-Amino orthocresol 0.1
(4) Resorcin 0.4
(5) Liquid paraffin 3.0
(6) Polyoxyethylene octyldodecyl ether 5.0
(7) Cetanol 1.0
(8) Stearyl alcohol 1.0
(9) Porous cellulose powder * 4 0.05
(10) Purified water residue (11) Isodium edetate tetrahydrate Appropriate amount (12) Antioxidant Appropriate amount (13) Fragrance Appropriate amount (14) Ammonia water (25%) * 2 2.5
* 4 Cellflow TA-25 (JNC Corporation)

(Production method)
The components (1) to (8) are uniformly mixed and heated to 80 ° C. to obtain an oil phase. The components (9) to (12) are uniformly mixed and heated to 80 ° C. to form an aqueous phase. An aqueous phase is added to the oil phase to emulsify, and the mixture is stirred at 80 ° C. for 20 minutes, and then cooling is started. The component (13) was added at 68 ° C., the component (14) was added at 40 ° C., and the cooling was stopped at 30 ° C. to obtain one milky liquid oxidative hair dye.

(Example 14: 1 creamy oxidative hair dye)
(Ingredient) (% by weight)
(1) Toluene-2,5-diamine 1.5
(2) Metaaminophenol 0.3
(3) Resorcin 0.6
(4) Oleic acid 10.0
(5) Polyoxyethylene octyldodecyl ether 10.0
(6) Cetanol 2.0
(7) Stearyl alcohol 2.0
(8) Stearyltrimethylammonium chloride 1.0
(9) Porous cellulose powder * 1 5.0
(10) Residual purified water (11) Isodium edetate tetrahydrate Appropriate amount (12) Antioxidant Appropriate amount (13) Hydrolyzed keratin powder 0.5
(14) Perfume Appropriate amount (15) Monoethanolamine 80% aqueous solution * 3 5.0

(Production method)
The components (1) to (8) are uniformly mixed and heated to 80 ° C. to obtain an oil phase. The components (9) to (13) are uniformly mixed and heated to 80 ° C. to form an aqueous phase. An aqueous phase is added to the oil phase to emulsify, and the mixture is stirred at 80 ° C. for 20 minutes, and then cooling is started. The component (14) was added at 68 ° C., the component (15) was added at 40 ° C., and the cooling was stopped at 30 ° C. to obtain one creamy oxidative hair dye.

(Example 15: Paste-like oxidative hair dye 1 agent)
(Ingredient) (% by weight)
(1) Toluene-2,5-diamine 1.8
(2) Orthoaminophenol 0.2
(3) Para-aminophenol 0.6
(4) Metaaminophenol 0.1
(5) Resorcin 0.9
(6) 5-Amino orthocresol 0.1
(7) Liquid paraffin 5.0
(8) Vaseline 15.0
(9) Cetanol 3.0
(10) Stearyl alcohol 3.0
(11) Stearyltrimethylammonium chloride 1.0
(12) Porous cellulose powder * 1 10.0
(13) Residual purified water (14) Tetrasodium edetate tetrahydrate Appropriate amount (15) Antioxidant Appropriate amount (16) O- [2-hydroxy-3- (trimethylammonio) propyl] hydroxyethyl cellulose 0 .5
(17) Perfume Appropriate amount (18) Ammonia (25%) * 2 3.0

(Production method)
The components (1) to (11) are uniformly mixed and heated to 80 ° C. to obtain an oil phase. The components (12) to (16) are uniformly mixed and heated to 80 ° C. to form an aqueous phase. An aqueous phase is added to the oil phase to emulsify, and the mixture is stirred at 80 ° C. for 20 minutes, and then cooling is started. The component (17) was added at 68 ° C., the component (18) was added at 40 ° C., and the cooling was stopped at 30 ° C. to obtain one paste-like oxidative hair dye.

According to the present invention, it is possible to provide an oxidative hair dye having reduced unpleasant odors derived from ammonia and monoethanolamine, and it can be applied not only to cosmetics but also to pharmaceuticals and the like.

Claims (3)

An oxidative hair dye containing (a) a porous cellulose powder having an average particle size of 1 to 20 μm and (b) at least one selected from (b) ammonia and monoethanolamine. (A) The oxidative hair dye according to claim 1, wherein the content of the porous cellulose powder having an average particle size of 1 to 20 μm is 0.01 to 10% by weight. (B) An oxidative hair dye containing at least one selected from ammonia and monoethanolamine, and (a) a porous cellulose powder having an average particle size of 1 to 20 μm is contained in the oxidative hair dye. A method for reducing an unpleasant odor derived from ammonia and monoethanolamine contained in.