JP2000086453A - Hair cosmetic - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a hair cosmetic capable of repairing damaged hair and providing hair with a moist feeling without feeling stickiness and stiffness, useful as a hair conditioner, etc., by making the hair cosmetic include a specific amino acid-based amphoteric surfactant and a specified humectant. SOLUTION: This hair cosmetic comprises (A) a compound of the formula (R is a 8-22C alkyl; X is an acid) e.g. an N-[3-alkyl(12,14)oxy-2-hydroxypropyl]- L-arginine hydrochloride, etc.}, and (B) one or more kinds of humectants selected from a plant-derived humectant (preferably a vegetable protein hydrolyzate such as wheat protein hydrolyzate, etc., a marine alga extract such as carrageenan, etc.), a urea-based humectant (preferably urea) and a saccharide- based humectant (preferably fructose) in the ratio of 0.01-5 wt.% of the component A and 0.001-5 wt.% of the component B.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hair cosmetic, and more particularly to a hair cosmetic that repairs damaged hair and gives the hair a moist feeling without stickiness or stiffness. .

[0002]

2. Description of the Related Art Conventionally, in hair cosmetics, various oils, water-soluble polymers, polyhydric alcohols, or keratin have been used to care for damaged hair, improve cohesion, and impart a moderate moist feeling. A humectant such as a hydrolyzate was appropriately blended.

[0003]

However, when oils such as lanolin, hydrocarbon oils and ester oils are used, the emollient feeling is better than the moist feeling.
The finish tended to be heavy and sticky. Further, when a water-soluble polymer or polyhydric alcohol is blended, a moist feeling at the time of use can be produced, but stiffness tends to occur over time. Furthermore, the addition of the keratin hydrolyzate tends to impart undesirable firmness and firmness to the hair. As described above, the moisturizing agent for hair also has advantages and disadvantages depending on its type, and a satisfactory moisturizing effect cannot be obtained. Therefore, development of a hair cosmetic that repairs damaged hair and gives the hair a moist feeling without feeling sticky or stiff has been desired.

[0004]

[Means for Solving the Problems] In view of such circumstances,
The present inventors have conducted intensive studies to overcome the drawbacks of incorporating a humectant into hair cosmetics, and as a result, combine a specific amino acid-based amphoteric surfactant with a component having a specific moisturizing action. As a result, they have found that the above-mentioned problems can be solved, and have completed the present invention.

That is, the present invention relates to the following components (A) and (B): (A) a compound represented by the general formula (1)

Embedded image (In the formula, R represents an alkyl group having 8 to 22 carbon atoms, and X represents an acid.) (B) One or more species selected from plant-derived humectants, urea-based humectants, and sugar-based humectants Hair cosmetics characterized by containing a humectant.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described in detail.
The component (A) used in the present invention has the following general formula (1)

Embedded image (Wherein R and X have the above-mentioned meanings).

In the general formula (1), R is an alkyl group having 8 to 22 carbon atoms, particularly preferably an alkyl group having 12 to 14 carbon atoms. The acid represented by X is not particularly limited as long as it can form a salt with the L-arginine moiety and can stably exist, and inorganic acids such as hydrochloric acid and sulfuric acid, and organic acids such as acetic acid and lactic acid. Acids are exemplified, and among them, hydrochloric acid is particularly preferable.

A preferred specific example of the compound of the formula (1) is an N-alkyl group having 12 or 14 carbon atoms.
[3-alkyl (12,14) oxy-2-hydroxypropyl] -L-arginine hydrochloride can be mentioned. This compound is commercially available as Amisafe LMA-60 (manufactured by Ajinomoto Co.), and this can be used suitably.

The component (B) used in the present invention is selected from plant-derived humectants, urea-based humectants and sugar-based humectants.
One or more humectants.

Among the component (B), examples of the plant-derived humectant used in the present invention include a vegetable protein hydrolyzate, a seaweed extract and the like. Among them, the vegetable protein hydrolysates include hydrolysates such as soy protein and wheat protein, and trimethylammonium salts,
Derivatives cationized with higher alkyl quaternary ammonium salts and the like, N-acylated derivatives thereof, and alkyl ester derivatives are exemplified. Also, for example, Promois WS, Promois WG (all manufactured by Seiwa Kasei), GL
Commercial products such as UADIN W20 (produced by Henkel) can be used.

[0011] These vegetable protein hydrolysates have excellent affinity with hair and protect damaged hair by adsorbing to hair.
It is also excellent in repairing and moisturizing effects. Conventionally, animal protein hydrolysates such as collagen hydrolysates, keratin hydrolysates, silk hydrolysates, milk casein hydrolysates, and pearl hydrolysates have been widely used,
While these have a high hair repairing effect, they tend to give a firm and stiff feel to the touch, and tend to impair suppleness even if a moisturizing effect is imparted. In contrast, soy protein hydrolysates, vegetable protein hydrolysates such as wheat protein hydrolysates have a moderate hair repairing effect and a high moisturizing effect, giving a supple and natural unity feeling It is excellent in function, and the effect of imparting a moist feeling to hair is significantly improved when used in combination with the component (A), and the feeling of stickiness and stiffness is reduced.

Seaweed extracts, which are other examples of plant-derived humectants, include brown algae (Phaeophyta), red algae (Rhodophyta), and green algae (Chlorophylla).
It is a substance obtained by extracting water or a hydrophilic solvent from yta) or the like. In the present invention, any of these can be used, and among them, polysaccharides derived from seaweed and derivatives thereof are preferable. Specific examples include natural polysaccharides such as carrageenan, alginates, and phacelerin, and derivatives thereof. This seaweed extract has a high moisturizing effect and is an excellent moisturizing agent that gives the hair a supple and natural cohesive feeling. Is more excellent, and the feeling of stickiness and stiffness is reduced.

Further, among the component (B) used in the present invention, examples of the urea-based humectant include urea, uric acid, allantoin and the like. In particular, urea has a high moisturizing effect and is a component that is blended into moisturizing creams for skin and the like. In the present invention, the effect of imparting a moist feeling to the hair is further improved by the combined use with the component (A), and the feeling of stickiness and stiffness is reduced.

Furthermore, among the component (B) used in the present invention, examples of the sugar-based humectant include fructose, glucose, sucrose, sorbitol, trehalose, pullulan, maltose and the like. In particular, fructose is one of the typical ketoses, and is a component that exists widely in nature. It is often used as a sweetener in foods, but when added to cosmetics, a good moisturizing effect can be obtained. In the present invention, the effect of imparting a moist feeling to the hair is further improved by the combined use with the component (A), and the feeling of stickiness and stiffness is reduced.

The hair cosmetic of the present invention is prepared by blending the above-mentioned component (A) and component (B) together with a suitable cosmetic component according to a conventional method. The amount of the component (A) at that time is preferably about 0.01 to 5% by weight (hereinafter simply referred to as "%") of the whole composition, and further enhances the hair repair effect and lubricity, and enhances the hair. Is preferably about 0.1 to 3% from the viewpoint of suppressing excessive adhesion and stiffness of the resin. (B)
The compounding amount of the component is preferably about 0.001 to 5% in the whole composition, but 0.01 to 5% in order to impart a moist feeling to the hair and to obtain a higher effect in the absence of stickiness and stiffness.
About 2.5% is more preferable. Here, of the component (B), the compounding amount of the plant-derived humectant indicates an amount as a dry solid content. The humectant of the component (B) can be used alone or in combination of two or more.

[0016] In the hair cosmetic composition of the present invention, the cosmetic component may be added in a quantitative and qualitative range according to the purpose without impairing the effect of the present invention. Viscosity modifiers such as polysaccharides; ionic or nonionic hair-fixing film-forming agents; hair quality improvers such as cationic polymers and cationic surfactants; ionic surfactants as detergents and emulsifiers; Ionic surfactants; emulsifying aids such as higher alcohols and glycerin fatty acid partial esters; polyhydric alcohols such as glycerin, polyglycerin, propylene glycol, polyethylene glycol and 1,3-butylene glycol; lower alcohols such as ethanol and benzyl alcohol Class; LPG, DM
E. Propellants such as carbon dioxide gas and nitrogen gas; disinfectants for dandruff prevention; cosmetic ingredients for hair or scalp; chelating agents and other components commonly used in cosmetics for hair. Also,
For example, other components usually used in cosmetics such as a pH adjuster, a pigment, a fragrance, an ultraviolet absorber, an antioxidant, a preservative, and a powder can be blended.

The hair cosmetic composition of the present invention can be formed into various forms, for example, liquid, emulsion, cream, gel, mousse, etc., depending on the combination with other components and the mechanism of the container. , Hair rinse, hair conditioner,
It can be used as a hair product represented by a hair pack, a hair cream, a hair lotion, a hair styling mousse, a hair spray, a hair gel and the like. As a method of use, it can be used for any product of a type applied to hair and then washed away, or a type applied to dry hair.

[0018]

The compound of the component (A) used in the present invention is as shown in the above formula (1), and is an amino acid-based amphoteric surfactant in which the arginine moiety exhibits cationic behavior. In recent years, the influence of chemical substances on the environment has become more important, and the compound of the component (A) has a higher quaternary ammonium salt-type cationic surfactant which is a general-purpose raw material for hair cosmetics. Since it exhibits high biodegradability, it is a useful compound as a hair feel improving agent. And (A)
When the compound of the component is blended into hair cosmetics, it is easy to adsorb to the hair due to its cationic properties, so it is excellent in the effect of protecting and repairing the hair surface and imparting lubricity,
Improves the feel of hair. As described above, the compound of the component (A) has an excellent effect. However, in the present invention, as described above, the effect of imparting a moist feeling to hair by using the component (B) in combination is remarkable. To improve
Moreover, there is no stickiness or stiffness. These effects were synergistic, which could not be obtained when the component (A) or the component (B) was blended alone.

[0019]

The present invention will be further described below with reference to examples and comparative examples, but the present invention is not limited to these examples.

Example 1 and Comparative Example 1 Hair conditioner: Hair conditioners of the present invention products 1 to 16 were prepared according to the composition shown in Table 1 and the following production method. With respect to the obtained hair conditioner, the sensory evaluation of the hair at the time of rinsing and after drying was performed by the following evaluation method. In addition, a comparative product 1 was obtained by the composition shown in Table 2 and the following production method.
To 7 were prepared and evaluated in the same manner as the product of the present invention. The obtained results are also shown in Tables 1 and 2.

[0021]

[Table 1]

[0022]

[Table 2]

(Production method) A. The components (1) to (3) are heated and dissolved. B. Components (4) to (12) and (14) are heated and dissolved. C. Add A to B, uniformly emulsify and mix, and after cooling, add component (13). D. Fill C into a container to obtain a hair conditioner.

(Evaluation method) A hair bundle of 20 g of a Japanese woman's hair, which had not been subjected to a beauty treatment such as cold perm or bleaching, was bundled in a bundle of 30 g, and a plurality of hair bundles were prepared. After rinsing these hair bundles with running water for 30 seconds and wiping off the water with a towel, one bundle was used as a blank and each sample of the present invention products 1 to 16 and comparative products 1 to 7 was applied to each of the other hair bundles. 1.5 g was applied at a time. Regarding the smoothness of the hair bundle while rinsing these for 30 seconds (when rinsing), 10
The evaluation was performed using a five-level evaluation criterion shown in FIG. Thereafter, the bristle bundle was dried in a thermostat at 30 ° C., and the smoothness, flexibility, moist feeling, and goodness of unity after drying were similarly evaluated on a 5-point scale. Thereafter, the average value of the scores of each sample was determined using the four-step criterion shown in (b).

(A) Five-grade evaluation criteria (Score) (Evaluation) 4: Very good compared to blank 3: Good, Good 2: Good, not changed 1: Good, Somewhat bad 0: Good, Bad

(B) Four-step judgment criteria (Score) (Judgment) Exceeding 3.0: 超 え Exceeding 2.0: 3.0 or less: ○ Exceeding 1.0, 2.0 or less: △ 1. 0 or less: ×

As is clear from the results shown in Tables 1 and 2, the hair conditioner of the present invention has better smoothness upon rinsing and a feeling of use after drying (smoothness, Flexibility, moist feeling, and unity). Therefore, it was proved that the hair conditioner had an excellent effect.

Example 2 Shampoo: A shampoo was prepared according to the following composition and manufacturing method. (Composition) (Component) (% by weight) (1) Polyoxyethylene alkyl ether sulfate (3EO) 15 (2) N- [3-alkyl (12,14) oxy-2-hydroxypropyl]- L-arginine hydrochloride 5 (3) Disodium edetate 0.1 (4) Hydrolyzed soybean protein (Note 4) 0.5 (5) Preservative appropriate amount (6) Flavor appropriate amount (7) Purified water remaining amount (Note) 4) Promois WS (manufactured by Seiwa Kasei)

(Production method) The components (1) to (7) are uniformly mixed. B. Fill A into a container to obtain a shampoo.

The shampoo obtained as described above is
It had good usability, was not sticky after washing, and was able to impart a moderate moist feeling and smoothness, exhibiting extremely excellent effects.

Example 3 Hair treatment lotion: A hair treatment lotion was prepared according to the following composition and manufacturing method. (Composition) (Component) (% by weight) (1) 1,3-butylene glycol 2 (2) Glycerin 1 (3) Urea 1 (4) Fructose 0.1 (5) Carrageenan 0.01 (6) Hydrolysis Wheat protein (Note 2) 0.1 (7) Stearyltrimethylammonium chloride 0.5 (8) Methylphenylpolysiloxane 1 (9) N- [3-alkyl (12,14) oxy-2-hydroxypropyl] -L -Arginine hydrochloride 0.2 (10) Ethanol 20 (11) Preservative appropriate amount (12) Flavor appropriate amount (13) Purified water balance (Note 2) Same as in Example 1

(Production method) A. Components (1) to (6) and (13) are mixed and dissolved. B. Components (7) to (12) are mixed and dissolved. C. Add B to A and mix uniformly. D. Fill C into a mist container to obtain a hair treatment lotion.

The hair treatment lotion obtained as described above can be favorably used for hair in the form of a mist.
It exhibited a very excellent effect of suppressing fluffiness, being non-greasy, having a moderate moist feeling and good cohesion.

Example 4 Hair gel: A hair gel was prepared according to the following composition and method. (Composition) (Component) (% by weight) (1) Carboxyvinyl polymer 0.5 (2) Polyvinylpyrrolidone 3 (3) Glycerin 1 (4) Suitable amount of sodium hydroxide (5) N- [3-alkyl (12, 14) Oxy-2-hydroxypropyl] -L-arginine hydrochloride 2 (6) Sodium alginate 0.5 (7) Ethanol 20 (8) Polyoxyethylene octyl dodecyl ether 0.2 (9) Preservative suitable amount (10) Suitable amount of fragrance (11) Remaining amount of purified water

(Production method) Components (1) and (6) are uniformly mixed with a part of the component (11). B. The components (2) and (3) are uniformly mixed with a part of the component (11). C. Components (5) and (7) to (10) are mixed and dissolved. D. The remaining components (4) and (11) are mixed and dissolved. E. FIG. C is added to D, mixed and dissolved, and A and B are further added and uniformly mixed. F. Fill E into a container to obtain a hair gel.

The hair gel obtained as described above is
It had an appropriate viscosity and exhibited a very excellent effect of exhibiting a good hair-styling power and an appropriate moist feeling and smoothness.

[0037]

As described in detail above, the hair cosmetic composition of the present invention is excellent in repairing damaged hair and imparting a moist feeling to hair without feeling sticky or stiff. Has excellent quality as a cosmetic. that's all

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 4C083 AA111 AB032 AC022 AC072 AC102 AC122 AC182 AC532 AC581 AC681 AC682 AC692 AC782 AD072 AD092 AD152 AD191 AD201 AD202 AD302 AD352 AD411 AD412 CC33 CC38 DD41 EE06 EE07 EE28 FF05

Claims (6)

[Claims] 1. The following components (A) and (B): (A) a compound represented by the general formula (1): (In the formula, R represents an alkyl group having 8 to 22 carbon atoms, and X represents an acid.) (B) One or more species selected from plant-derived humectants, urea-based humectants, and sugar-based humectants A hair cosmetic comprising a humectant. 2. The hair cosmetic composition according to claim 1, wherein the component (B) is a vegetable protein hydrolyzate. 3. The hair cosmetic according to claim 1, wherein the component (B) is a seaweed extract. 4. The hair cosmetic according to claim 1, wherein the component (B) is urea. 5. The hair cosmetic according to claim 1, wherein the component (B) is fructose. 6. The method according to claim 1, wherein the content of the component (A) is 0.01 to 5% by weight, and the content of the component (B) is 0.001 to 5% by weight. A hair cosmetic according to any of the above items.