Hair composition and hair treatment method

Abstract

To provide a composition for hair capable of improving the volume of hair while suppressing the entanglement of hair, and to provide a hair treatment method using the composition for hair.SOLUTION: This composition for the hair is obtained by formulating (A) an amino acid-based cationic surface active agent with (B) one or more kinds selected from pantothenic acids, vitamin C or its salts, vitamin B3 or its salts and vitamin B6 or its salts. The hair treatment method uses the composition for hair.SELECTED DRAWING: None

Description

[Technical Field]

[0001] The present invention relates to a hair composition and a hair treatment method. [Background technology]

[0002] Hair compositions containing various ingredients such as surfactants are available to impart desired functions to hair.

[0003] As an example of a hair composition, a composition containing (a) one or more cationic surfactants, (b) one or more amphoteric surfactants, (c) one or more fatty alcohols, (d) one or more starch derivatives, (e) one or more cationic conditioning polymers, (f) one or more aminosilicones, and (g) water has been proposed (Patent Document 1). The composition of Patent Document 1 has been shown to effectively cleanse hair and provide conditioning and hydration properties, detangling, and curl definition without causing frizz, flattening, or leaving the hair feeling sticky (paragraph 0009 of Patent Document 1). [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Special Publication No. 2018-522932 Summary of the Invention [Problem to be solved by the invention]

[0005] Cationic surfactants such as quaternary ammonium salts are sometimes used as ingredients in hair compositions to reduce hair tangles. However, when hair compositions containing such cationic surfactants are used on hair, the hair as a whole tends to become tangled, and the volume of the hair may decrease.

[0006] On the other hand, in order to improve the volume of hair, a component capable of imparting volume to hair, such as a setting resin, is sometimes blended into a hair composition. However, when a hair composition blended with a component capable of imparting volume to hair is used on hair, the hair strands tend to get caught on each other, and the hair may become easily tangled.

[0007] In view of these circumstances, there is a demand for a hair composition that can both reduce hair tangles and increase hair volume.

[0008] In view of the above circumstances, the present invention aims to provide a hair composition that can improve hair volume while suppressing hair tangles, and to provide a hair treatment method using the hair composition. [Means for solving the problem]

[0009] As a result of intensive research, the present inventors have discovered that by blending an amino acid-derived cationic surfactant with one or more selected from pantothenic acids, vitamin C or a salt thereof, vitamin B3 or a salt thereof, and vitamin B6 or a salt thereof in a hair composition, it is possible to improve the volume of hair while suppressing hair tangles, and have completed the present invention.

[0010] The present invention includes the following inventions [1] to [8].

[0011] The hair composition [1] contains (A) an amino acid-based cationic surfactant and (B) one or more selected from pantothenic acids, vitamin C or a salt thereof, vitamin B3 or a salt thereof, and vitamin B6 or a salt thereof.

[0012] The hair composition [2] is the hair composition [1], which contains N-fatty acid acyl-L-arginine ethyl or a salt thereof as (A).

[0013] The hair composition of [3] is the hair composition of [1] or [2], wherein the pantothenic acid derivative is pantothenyl alcohol, pantothenyl alkyl ether, or pantothenic acid or a salt thereof.

[0014] The hair composition [4] is any one selected from the hair compositions [1] to [3], and contains, as (B), one or more selected from pantothenyl alcohol, pantothenyl ethyl ether, ascorbic acid, nicotinamide, and pyridoxine hydrochloride.

[0015] The hair composition [5] is any one selected from the hair compositions [1] to [4], and is used in a leave-in form.

[0016] The hair composition [6] is any one selected from the hair compositions [1] to [5], and is a hair styling composition.

[0017] The hair composition [7] is any one selected from the hair compositions [1] to [6], and is in the form of a foam.

[0018] The hair treatment method [8] is a hair treatment method using any one selected from the hair compositions [1] to [7]. [Effects of the Invention]

[0019] According to the hair composition of the present invention, it is possible to provide a hair composition that can improve hair volume while suppressing hair tangles.

[0020] According to the hair treatment method of the present invention, a hair treatment method using the hair composition of the present invention can be provided. DETAILED DESCRIPTION OF THE INVENTION

[0021] The present invention will be described below based on an embodiment of the present invention (hereinafter referred to as "the present embodiment").

[0022] In the description of this specification, amino acid-based cationic surfactants may be referred to as "(A)", and pantothenic acids, vitamin C or a salt thereof, vitamin B3 or a salt thereof, and vitamin B6 or a salt thereof may be collectively referred to as "(B)".

[0023] <Hair composition> The hair composition of this embodiment contains (A) an amino acid-derived cationic surfactant and (B) one or more selected from pantothenic acids, vitamin C or a salt thereof, vitamin B3 or a salt thereof, and vitamin B6 or a salt thereof. The hair composition of this embodiment can improve hair volume while suppressing hair tangles.

[0024] ((A) Amino acid-based cationic surfactant) The hair composition of this embodiment contains one or more amino acid-derived cationic surfactants. The amino acid-derived cationic surfactant refers to a surfactant having a structure derived from an amino acid, which becomes a cation when dissolved in water. Examples of the amino acid include basic amino acids (arginine, lysine, etc.).

[0025] (A) incorporated into the hair composition of this embodiment may be an amino acid-derived cationic surfactant having a hydrocarbon group with 8 or more carbon atoms. The hydrocarbon group may be linear or branched, and saturated or unsaturated.

[0026] Examples of (A) contained in the hair composition of this embodiment include N-long-chain acylamino acid alkyl esters and salts thereof. The acyl group may have 8 or more carbon atoms.

[0027] Examples of the N-long-chain acyl amino acid alkyl ester or a salt thereof include N-fatty acid acyl-L-arginine ethyl ester or a salt thereof (such as N-coconut oil fatty acid acyl-L-arginine ethyl ester·DL-pyrrolidone carboxylic acid).

[0028] The hair composition of this embodiment may contain N-cocoyl acyl-L-arginine ethyl pyrrolidone carboxylate (cocoyl arginine ethyl PCA) as component (A). The pyrrolidone carboxylate may be DL-pyrrolidone carboxylate.

[0029] The amount of (A) in the hair composition of this embodiment is, for example, 0.01% by mass or more, but from the viewpoint of further suppressing hair tangles, it is preferably 0.05% by mass or more, more preferably 0.1% by mass or more, even more preferably 0.2% by mass or more, and particularly preferably 0.3% by mass or more.

[0030] The amount of (A) in the hair composition of this embodiment is, for example, 1.0% by mass or less, but from the viewpoint of reducing the risk of skin irritation, it is preferably 0.9% by mass or less, more preferably 0.8% by mass or less, and even more preferably 0.7% by mass or less.

[0031] ((B) One or more selected from pantothenic acids, vitamin C or its salts, vitamin B3 or its salts, and vitamin B6 or its salts) The hair composition of this embodiment contains one or more selected from pantothenic acids, vitamin C or a salt thereof, vitamin B3 or a salt thereof, and vitamin B6 or a salt thereof. The "salt" in (B) is not particularly limited, but examples thereof include alkali metal salts (such as sodium salts and potassium salts), alkaline earth metal salts (such as calcium salts and magnesium salts), inorganic acid salts (such as hydrochlorides), and organic acid salts.

[0032] Examples of the pantothenic acids include pantothenyl alcohol, pantothenyl alkyl ether, pantothenic acid, or a salt thereof (pantothenic acid, sodium pantothenate, calcium pantothenate, etc.). The pantothenic acids may be pantothenyl alcohol, pantothenyl alkyl ether, or pantothenic acid or a salt thereof. The pantothenic acids may have a chemical structure of an L-form, a D-form, or a DL-form.

[0033] Examples of vitamin C or a salt thereof include ascorbic acid, calcium ascorbate, magnesium ascorbate, sodium ascorbate, zinc ascorbate, and allantoin ascorbate. Note that ascorbic acid may have an L-form chemical structure, a D-form chemical structure, or a DL-form chemical structure.

[0034] Examples of the vitamin B3 or a salt thereof include nicotinamide, nicotinic acid, and a salt thereof.

[0035] Examples of vitamin B6 or a salt thereof include pyridoxine or a salt thereof (pyridoxine, pyridoxine hydrochloride, etc.), pyridoxal or a salt thereof, and pyridoxamine or a salt thereof.

[0036] The hair composition of the present embodiment preferably contains pantothenic acids as (B) from the viewpoint of further improving the volume of hair.

[0037] The amount of (B) in the hair composition of this embodiment (here, "the amount of (B)" refers to the total amount of pantothenic acids, vitamin C or a salt thereof, vitamin B3 or a salt thereof, and vitamin B6 or a salt thereof in the hair composition; the same applies hereinafter) is, for example, 0.01% by mass or more, but from the viewpoint of further improving the volume of hair, it is preferably 0.05% by mass or more, more preferably 0.06% by mass or more, even more preferably 0.07% by mass or more, and particularly preferably 0.08% by mass or more.

[0038] The amount of (B) in the hair composition of this embodiment is, for example, 3.0% by mass or less, but from the viewpoint of suppressing stiffness of the hair after treatment, it is preferably 2.0% by mass or less, more preferably 1.0% by mass or less, even more preferably 0.5% by mass or less, and particularly preferably 0.3% by mass or less.

[0039] (Mass ratio (A) / (B)) In the hair composition of the present embodiment, the mass ratio of the amount of (A) to the amount of (B) (mass ratio (A) / (B)) is not particularly limited, but is, for example, 0.003 or more and 100 or less.

[0040] (optional ingredient) The hair composition of this embodiment may contain components other than (A) and (B) (hereinafter referred to as "optional components"). The optional components are appropriately selected from components contained in known hair compositions depending on the intended use and purpose of the hair composition. Examples of optional components include nonionic surfactants, amphoteric surfactants, cationic surfactants other than (A), water, polyhydric alcohols, sugars, polymeric compounds, amino acids, oils that are liquid at 25°C (e.g., hydrocarbons, silicone oils, ester oils), oils that are solid at 25°C (e.g., higher fatty acids, higher alcohols, ester oils), animal and plant extracts, inorganic compounds, powders, acids, alkalis, fragrances, preservatives, sequestering agents, UV absorbers, and propellants.

[0041] (water) The hair composition of the present embodiment preferably contains water, from the viewpoint of facilitating the blending of (A). The amount of water to be blended is not particularly limited and may be appropriately set, but is, for example, 40.0% by mass or more and 97.0% by mass or less.

[0042] (Manufacturing method) The hair composition of this embodiment can be produced by a known method for producing a hair composition. One example of the production method is to mix predetermined amounts of (A) and (B) to produce a hair composition. In this example, heating may be performed before or after mixing, if necessary, and a solvent such as water may be added as an optional component.

[0043] (Dosage form) The formulation of the hair composition of this embodiment is not particularly limited, and may be a solid, paste, liquid, or foam. The formulation of the hair composition of this embodiment is preferably a foam, from the viewpoint of facilitating uniform application to hair. When the hair composition of this embodiment is in foam form, the hair composition of this embodiment may be one that is discharged from an aerosol container to form a foam, one that is discharged from a non-aerosol foamer container to form a foam, or one that is mixed with air to form a foam before application to hair.

[0044] (Application) The hair composition of the present embodiment is intended for use on hair, but may also be intended for use on both hair and the scalp.

[0045] The hair composition of the present embodiment can be used, for example, for hair care applications (for example, shampoo, hair rinse, hair conditioner, hair treatment (which may be a leave-in hair treatment or a rinse-off hair treatment), hair pack, hair mask, one component of a multi-component hair treatment, etc.), for hair styling applications, and for hair care and scalp care applications (for example, a lotion for both hair care and scalp care, shampoo, rinse, conditioner, treatment (which may be a leave-in treatment or a rinse-off treatment), pack, mask, one component of a multi-component treatment, etc.).

[0046] The hair composition of the present embodiment is preferably used in a leave-in form, from the viewpoint of further improving hair volume. Examples of the leave-in form include a hair styling composition, a hair treatment that is applied to the hair and left to be washed away, and a treatment that is applied to the hair and left to be used for both hair care and scalp care.

[0047] The hair composition of the present embodiment may be used for increasing hair volume. The hair composition of the present embodiment may be, for example, a hair composition for increasing hair volume (such as a cosmetic or quasi-drug used to increase hair volume), or may be in the form of a product in which the fact that the composition is used to increase hair volume and its effect on increasing hair volume are indicated on the package, pamphlet, instruction manual, or other explanatory materials.

[0048] (Product form) Examples of the product form of the hair styling composition include hair liquid, hair mist, hair foam, hair cream, hair wax, and hair oil. Examples of the product form of the hair treatment that is applied to the hair and left to stand include hair liquid, hair mist, hair foam, hair cream, hair milk, hair oil, and leave-in treatment.

[0049] (How to use) The method of using the hair composition of the present embodiment may be any known method for using hair compositions depending on the purpose. Examples of the method of use include the following. A method of use in which the hair composition of the present embodiment is applied to wet hair, blended with hands or a tool such as a comb, and then the hair is dried without rinsing the hair composition. A method in which the hair composition of the present embodiment is applied to dry hair, and then blended with hands or a tool such as a comb, and the hair composition is not rinsed off.

[0050] The hair composition of the present embodiment may be used before blow-drying. In this case, the hair composition of the present embodiment may be applied to hair wet with water, and then the composition is blended into the hair with a tool such as a hand or a comb. Then, without rinsing off the hair composition, the hair is blow-dried using a hair dryer and a hairbrush to dry the hair while shaping it.

[0051] <Hair treatment method> The hair treatment method of the present embodiment is a hair treatment method using the hair composition of the present embodiment described above. According to the hair treatment method of the present embodiment, a hair treatment method that can improve hair volume while suppressing hair tangles can be provided.

[0052] The hair treatment method of this embodiment can be used in the same manner as the hair composition of this embodiment. [Example]

[0053] The present invention will be described in more detail below with reference to examples. Note that the examples described below are representative examples of the present invention, and the present invention should not be construed as being limited by them.

[0054] (Examples 1 to 6, Comparative Examples 1 to 6) The compositions of Examples 1 to 6 and Comparative Examples 1 to 6 were prepared as follows, and the hair tangle resistance and hair volume were evaluated.

[0055] (Preparation of Examples 1 to 6 and Comparative Examples 1 to 6) The hair compositions of Examples 1 to 6 and Comparative Examples 1 to 6 were prepared by mixing any of the following ingredients in a conventional manner according to the compositions shown in Tables 1 to 4. The numerical values ​​for each ingredient in Tables 1 to 4 are in mass %, and "-" indicates that the ingredient was not added.

[0056] (Ingredients used) N-Cocoyl-L-arginine ethyl ester·DL-pyrrolidone carboxylate, stearyltrimethylammonium chloride, distearyldimethylammonium chloride, D-pantothenyl alcohol, pantothenyl ethyl ether, L-ascorbic acid, nicotinamide, pyridoxine hydrochloride, L-arginine, propylene glycol, polyoxyethylene coconut sorbitan (20E.O.), water

[0057] (Evaluation of Examples 1 to 5 and Comparative Examples 1 to 5) The hair compositions of Examples 1 to 5 and Comparative Examples 1 to 5 prepared above were evaluated for "hair tangle resistance" and "hair volume" by the following evaluation methods.

[0058] (Evaluation method) The hair of the evaluation wig that had been treated with hair color was washed with Milbon's Grand Linkage Willow Luxe Shampoo and then rinsed with water. The hair of the evaluation wig was then treated with Milbon's Grand Linkage Willow Luxe Treatment and rinsed with water. The towel-dried hair of the evaluation wig was then divided into four evaluation areas so that each hair bundle had the same amount of hair, and approximately 1.0 g of each of the hair compositions of Examples 1 to 5 or Comparative Examples 1 to 5 was applied to each hair bundle in one evaluation area. Similarly, approximately 1.0 g of each of the hair compositions of Examples 1 to 5 or Comparative Examples 1 to 5 was applied to each hair bundle in the remaining three evaluation areas. Each evaluation area was combed to blend the composition evenly. Next, a roll brush (Y.S. Park Professional Co., Ltd.: Carbon Tiger Brush) was passed over the inside of the hair bundle (the part of the hair bundle closest to the face when the wig hair was held up) from the roots toward the ends once or twice, and the "resistance to tangling of the hair" was evaluated according to the following evaluation criteria. Furthermore, the hair bundle was dried with a hair dryer while blow-drying, and then the "hair volume" was evaluated according to the following evaluation criteria. The sensory evaluation was judged based on the total score of five panelists who regularly evaluate hair compositions.

[0059] (Evaluation criteria: hair tangle resistance) 1 point: Less likely to tangle than the reference product (less likely to get caught when brushing from root to tip of hair strands than the reference product). 0 points: As tangle-resistant as the reference product (when the brush is passed from the root to the tip of the hair strands, there is as little tangling as with the reference product). -1 point: Compared to the standard product, it tangles more easily (when passing the brush from the root to the tip of the hair, it gets caught more than the standard product).

[0060] (Evaluation criteria: hair volume) 1 point: Superior hair volume compared to the reference product (when observing the volume of hair from the root to the tip of the hair strand, the hair volume is greater than that of the reference product). 0 points: Hair volume is the same as the standard product (when observing the volume of the hair from the root to the tip of the hair strand, the volume of the hair is the same as the standard product). -1 point: Hair volume is inferior to the standard product (when observing the volume of hair from the root to the tip of the hair strand, the hair volume is less than that of the standard product).

[0061] (Evaluation Results: Hair Compositions of Example 1 and Comparative Examples 1 to 3) The following Table 1 shows the ingredients used, as well as the evaluation results for each hair composition of Example 1 and Comparative Examples 1 to 3. The hair composition of Comparative Example 1 was used as the standard for each evaluation.

[0062] [Table 1]

[0063] The results shown in Table 1 show that the hair composition of Example 1 containing (A) had improved hair tangle resistance and hair volume compared to the hair compositions of Comparative Examples 1 to 3 not containing (A). Therefore, it can be seen that the hair composition containing (A) and (B) can improve hair volume while suppressing hair tangles.

[0064] (Evaluation Results: Hair Compositions of Examples 1 to 5 and Comparative Examples 4 to 5) The following Tables 2 and 3 show the ingredients used, as well as the evaluation results of each hair composition of Examples 1 to 5 and Comparative Examples 4 and 5. The hair composition of Comparative Example 4 was used as the standard for each evaluation.

[0065] [Table 2]

[0066] [Table 3]

[0067] The results shown in Tables 2 and 3 show that the hair compositions of Examples 1 to 5 containing (B) had improved hair tangle resistance and hair volume compared to the hair compositions of Comparative Examples 4 and 5 containing no (B). This shows that the hair compositions containing (A) and (B) can improve hair volume while suppressing hair tangles.

[0068] The results shown in Tables 2 and 3 show that the hair compositions of Examples 1 and 2 (containing pantothenic acids as (B)) had improved hair volume compared to the hair compositions of Examples 3 to 5 (containing something other than pantothenic acids as (B)). Therefore, it can be seen that by incorporating pantothenic acids as (B) into a hair composition, hair tangles can be suppressed while hair volume can be improved.

[0069] (Evaluation of Example 6 and Comparative Example 6) The hair compositions of Example 6 and Comparative Example 6 prepared above were each placed in a non-aerosol foamer container. Subsequently, "hair tangle resistance" and "hair volume" were evaluated according to the evaluation methods and criteria used for the hair compositions of Examples 1 to 5 and Comparative Examples 1 to 5. When using the hair compositions of Example 6 and Comparative Example 6 on hair, the compositions were each applied to the hair in the form of a foam.

[0070] (Evaluation Results: Hair Compositions of Example 6 and Comparative Example 6) Table 4 below shows the ingredients used and the evaluation results for each hair composition of Example 6 and Comparative Example 6. The hair composition of Comparative Example 6 was used as the standard for evaluation.

[0071] [Table 4]

[0072] The results shown in Table 4 show that the hair composition of Example 6 containing (A) and (B) had improved hair tangle resistance and hair volume compared to the hair composition of Comparative Example 6 containing no (A) or (B). Therefore, it can be seen that the hair composition containing (A) and (B) can improve hair volume while suppressing hair tangles.

[0073] (Prescription example) Formulation Examples 1 to 36 of hair compositions (aerosol preparations) are shown in Tables 5 to 10 below. In Tables 5 to 10, the numerical values ​​for each blended component are in mass %, and the notation "-" indicates that the component is not blended. The hair compositions of Formulation Examples 1 to 36 can be produced by filling a suitable aerosol container with the concentrate and propellant according to the composition shown in Tables 5 to 10 using a conventional method.

[0074] The ingredients used in the formulation examples are as follows: N-Coconut oil fatty acid acyl-L-arginine ethyl ester·DL-pyrrolidone carboxylate, D-pantothenyl alcohol, pantothenyl ethyl ether, polyvinylpyrrolidone, (VP / VA) copolymer, vinylpyrrolidone·N,N-dimethylaminoethyl methacrylate copolymer diethyl sulfate solution, phenoxyethanol, polyoxyethylene hydrogenated castor oil (40E.O.), fragrance, ethanol, water, liquefied petroleum gas, carbon dioxide

[0075] (Prescription Examples 1-24) Formulation Examples 1 to 24 are hair foams (aerosol preparations). The hair foams of Formulation Examples 1 to 24 may be used before blow-drying the hair.

[0076] [Table 5]

[0077] [Table 6]

[0078] [Table 7]

[0079] [Table 8]

[0080] (Prescription Examples 25-36) Formulation Examples 25 to 36 are aerosol preparations for hair.

[0081] [Table 9]

[0082] [Table 10]

Claims

1. A hair composition containing (A) an amino acid-based cationic surfactant and (B) one or more selected from pantothenic acids, vitamin C or a salt thereof, vitamin B3 or a salt thereof, and vitamin B6 or a salt thereof.

2. 2. The hair composition according to claim 1, wherein N-fatty acid acyl-L-arginine ethyl or a salt thereof is blended as (A).

3. The hair composition according to claim 1 or 2, wherein the pantothenic acid derivative is pantothenyl alcohol, pantothenyl alkyl ether, or pantothenic acid or a salt thereof.

4. The hair composition according to claim 1 or 2, wherein (B) is one or more selected from the group consisting of pantothenyl alcohol, pantothenyl ethyl ether, ascorbic acid, nicotinamide, and pyridoxine hydrochloride.

5. The hair composition according to claim 1 or 2, which is used in a leave-on manner.

6. The hair composition of claim 5, which is a hair styling composition.

7. The hair composition according to claim 1 or 2, which is in the form of a foam.

8. A hair treatment method using the hair composition according to claim 1 or 2.

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