Leave-in hair care products

Abstract

The present invention aims to provide a hair cosmetic that achieves both excellent setting properties and improved hair texture. [Solution] The present invention relates to a leave-in type hair cosmetic comprising (A) a cationic surfactant, (B) a higher alcohol, (C) an aromatic carboxylic acid, and (D) water.

Description

Technical Field

[0004]

[0001] The present invention relates to a type of hair cosmetic that is not washed out.

Background Art

[0002] Conventionally, various hair cosmetics have been used when styling hair. Consumers tend to not only shape their hairstyles but also value a natural texture and a healthy hair texture, and various hair cosmetics have been studied. For example, in order to impart a setting power to maintain a shaped hairstyle, wax, fatty acids, water-soluble polymers (setting resins), polysaccharides, etc. have been used, but these tend to give hardness and a bundled feeling to the hair, and the original natural softness and smoothness of the hair are lost. And in order to obtain an effect of improving the texture such as softness of hair, hair cosmetics containing a cationic surfactant have been proposed. Furthermore, in order to reduce the hardness of hair and improve the ease of combing, silicone etc. are used in combination.

[0003] For example, Patent Document 1 aims to effectively bring out the action of imparting flexibility to hair by a cationic surfactant and also to have good setting properties, and discloses an emulsified hair styling composition in which at least a specific amount of a cationic surfactant, a higher alcohol, a specific oily component, and water are blended. Also, Patent Document 2 aims to provide a hair cosmetic that imparts softness, good ease of combing, and gloss to hair, together with setting power and setting persistence, and discloses a hair cosmetic containing a cationic polymer, a polysaccharide or its derivative, and a silicone oil.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Patent Document 2

[0005] Consumers are increasingly prioritizing not only styling but also a natural and healthy look, and are looking for hair care products that offer hold, are non-greasy, and leave hair feeling smooth to the touch. However, in the aforementioned Patent Document 1, branched fatty acids and waxes are incorporated into the hair styling composition to enhance hold, but these components can cause stickiness and reduce manageability, so there is still room for improvement in achieving both hold and improved hair texture.

[0006] Therefore, the present invention aims to provide a leave-in hair cosmetic that achieves both excellent setting properties and improved hair texture. [Means for solving the problem]

[0007] The inventors of this invention conducted extensive research to achieve the above objectives and, as a result, discovered that a hair cosmetic composition using a cationic surfactant, a higher alcohol, an aromatic carboxylic acid, and water can achieve both excellent setting properties and improved hair texture, thus completing the present invention.

[0008] Therefore, the present invention is as follows. [1] A leave-in hair cosmetic comprising (A) a cationic surfactant, (B) a higher alcohol, (C) an aromatic carboxylic acid, and (D) water. [2] Furthermore, the leave-in hair cosmetic described in [1] further comprises (E) a tertiary amine compound. [3] The (C) aromatic carboxylic acid is at least one selected from salicylic acid and benzoic acid, as described in [1] or [2], a leave-in type hair cosmetic. [4] A leave-in hair cosmetic according to [1] or [2], containing 0.05 to 0.15% by mass of the aforementioned (C) aromatic carboxylic acid. [5] A leave-in type hair cosmetic according to [1] or [2], containing 70% by mass or more of the aforementioned (D) water. [Effects of the Invention]

[0009] The leave-in hair cosmetic of the present invention contains a cationic surfactant, a higher alcohol, an aromatic carboxylic acid, and water, thereby achieving both excellent setting properties and improved hair texture. [Modes for carrying out the invention]

[0010] The embodiments of the present invention will be described in detail below, but the present invention is not limited in any way to the embodiments described below, and can be implemented with appropriate modifications within the scope of the object of the present invention.

[0011] The leave-in hair cosmetic according to an embodiment of the present invention (hereinafter sometimes simply referred to as "hair cosmetic") has been newly found to achieve both excellent setting properties and improved hair texture by containing (A) a cationic surfactant, (B) a higher alcohol, (C) an aromatic carboxylic acid, and (D) water. (C) It is presumed that the above effect is achieved by including aromatic carboxylic acids because (A) some interaction with cationic surfactants and hair improves the suppleness and elasticity of the hair from the surface to the inside.

[0012] ((A) Cationic surfactant) The hair cosmetic composition according to an embodiment of the present invention contains (A) a cationic surfactant. By containing (A) a cationic surfactant, an emulsion is formed as a cosmetic composition, and the effect of providing flexibility and smoothness to the hair is obtained through the action of electrostatic adsorption to damaged hair. The cationic surfactant (A) contained in the hair cosmetic composition according to the embodiment of the present invention is not particularly limited as long as it is commonly used in hair cosmetic compositions, and examples include alkyltrimethylammonium salts (e.g., alkyltrimethylammonium chloride such as behentrimoniumammonium chloride, stearyltrimethylammonium chloride, lauryltrimethylammonium chloride); alkylpyridinium salts (e.g., cetylpyridinium chloride); dialkyldimethylammonium salts (e.g., dialkyldimethylammonium chloride such as distearyldimethylammonium chloride); polyoxyethylene-added dialkyldimethylammonium salts; dicocoylethylhydroxyethylmonium methosulfate; poly(N,N'-dimethyl-3,5-methylenepiperidinium) chloride; alkylquaternary ammonium salts; alkyldimethylbenzylammonium salts; alkylisoquinolinium salts; dialkylmolyphonium salts; POE-alkylamines; alkylamine salts; polyamine fatty acid derivatives; amyl alcohol fatty acid derivatives; benzalkonium chloride; benzethonium chloride, etc. (A) Cationic surfactants can be arbitrarily combined and selected to match the desired texture, and among the above, alkyltrimethylammonium chloride and dialkyldimethylammonium chloride are preferred from the viewpoint of easily ensuring the stability of the emulsion.

[0013] The content of (A) cationic surfactant in the hair cosmetic composition according to the embodiment of the present invention is not particularly limited as long as the desired effect is imparted, but is preferably 0.05% by mass or more, more preferably 0.1% by mass or more, and even more preferably 0.3% by mass or more. By having a content of (A) cationic surfactant of 0.05% by mass or more per hair cosmetic composition, it is possible to create an emulsified composition with viscosity that allows for the stable incorporation of various necessary components, and also provides the hair with improved texture such as flexibility, manageability, cohesion, and moisture, thereby achieving both excellent setting properties and improved hair texture. In addition, the content of (A) cationic surfactant per hair cosmetic according to the embodiment of the present invention is preferably 5% by mass or less, more preferably 3% by mass or less, and still more preferably 1% by mass or less. The content of (A) cationic surfactant in the hair cosmetic according to the embodiment of the present invention is preferably 0.05 to 5% by mass of the cosmetic, more preferably 0.1 to 3% by mass, and still more preferably 0.3 to 1% by mass.

[0014] ((B) Higher alcohol) The hair cosmetic according to the embodiment of the present invention contains (B) higher alcohol. By containing (B) higher alcohol, an emulsion is formed as a cosmetic, and effects such as imparting viscosity and enhancing the stability of the emulsion can be obtained. The (B) higher alcohol contained in the hair cosmetic according to the embodiment of the present invention is not particularly limited as long as it is usually used in cosmetics. For example, higher alcohols having 12 to 24 carbon atoms, more preferably 16 to 22 carbon atoms can be mentioned. The higher alcohol may be a straight-chain alcohol or a branched-chain alcohol.

[0015] Examples of the straight-chain alcohol include lauryl alcohol, myristyl alcohol, cetyl alcohol (cetanol), cetostearyl alcohol, stearyl alcohol, arachyl alcohol, behenyl alcohol, oleyl alcohol, jojoba alcohol, chimyl alcohol, batyl alcohol, and the like. Examples of the branched-chain alcohol include monostearyl glycerin ether (batyl alcohol), 2-decyltetradecynol, lanolin alcohol, cholesterol, phytosterol, hexyl dodecanol, isostearyl alcohol, octyl dodecanol, and the like.

[0016] Among these, from the viewpoints of imparting viscosity and stability of the emulsion, linear alcohols having 16 or more carbon atoms are preferred, and linear alcohols having 16 to 22 carbon atoms such as cetyl alcohol, stearyl alcohol, and behenyl alcohol can be particularly preferably used, and it is more preferable to use cetyl alcohol, stearyl alcohol, or behenyl alcohol.

[0017] In an embodiment of the present invention, (B) the higher alcohol can be used alone or in combination of two or more. For example, cetyl alcohol and stearyl alcohol may be used alone, or three kinds of cetyl alcohol, stearyl alcohol, and behenyl alcohol may be used in combination.

[0018] The content of (B) the higher alcohol in the hair cosmetic according to the embodiment of the present invention is not particularly limited as long as the desired effect is imparted, but is preferably 0.05% by mass or more, more preferably 0.1% by mass or more, and still more preferably 0.2% by mass or more. When the content of (B) the higher alcohol per hair cosmetic is 0.05% by mass or more, an emulsified composition having viscosity capable of stably blending various necessary components can be produced, and the composition can achieve both excellent setting properties and improvement in hair texture. Also, the content of (B) the higher alcohol per hair cosmetic according to the embodiment of the present invention is preferably 10% by mass or less, more preferably 5% by mass or less, and still more preferably 3% by mass or less. The content of (B) the higher alcohol in the hair cosmetic according to the embodiment of the present invention is preferably 0.05 to 10% by mass of the cosmetic, more preferably 0.1 to 5% by mass, and still more preferably 0.2 to 3% by mass.

[0019] ((C) Aromatic carboxylic acid) The hair cosmetic according to the embodiment of the present invention contains (C) an aromatic carboxylic acid. By containing (C) an aromatic carboxylic acid, it is presumed that an effect of improving the flexibility and elasticity from the hair surface to the inside can be obtained by some action with (A) a cationic surfactant and the hair. The (C) aromatic carboxylic acid contained in the hair cosmetic composition according to the embodiment of the present invention is not particularly limited as long as it is commonly used in hair cosmetic compositions, and examples include salicylic acid, benzoic acid, phthalic acid, terephthalic acid, etc. From the viewpoint of being able to be incorporated into cosmetics, salicylic acid or benzoic acid is preferred, and from the viewpoint of having a more pronounced effect, salicylic acid is more preferred.

[0020] Furthermore, these aromatic carboxylic acids may form salts, such as alkali metal salts like sodium and potassium, and alkaline earth metal salts like calcium and magnesium.

[0021] Of these, salicylic acid and its salts (particularly preferably sodium salts), benzoic acid and its salts (particularly preferably sodium salts), and salicylic acid derivatives such as 3-methylsalicylic acid, 4-methylsalicylic acid, and 5-methylsalicylic acid and their salts can be used particularly favorably.

[0022] The content of (C) aromatic carboxylic acid in the hair cosmetic composition according to the embodiment of the present invention is not particularly limited as long as the desired effect is imparted, but is preferably 0.01% by mass or more, more preferably 0.02% by mass or more, and even more preferably 0.05% by mass or more. By having a content of (C) aromatic carboxylic acid of 0.01% by mass or more per hair cosmetic composition, it is possible to achieve both excellent setting properties and improved texture such as smoothness of hair and lack of stickiness. Furthermore, the content of (C) aromatic carboxylic acid per hair cosmetic composition according to the embodiment of the present invention is preferably 1% by mass or less, more preferably 0.2% by mass or less, and even more preferably 0.15% by mass or less. The content of (C) aromatic carboxylic acid in the hair cosmetic composition according to the embodiment of the present invention is preferably 0.01 to 1% by mass of the cosmetic composition, more preferably 0.02 to 0.2% by mass, and even more preferably 0.05 to 0.15% by mass.

[0023] ((D)Wed) The hair cosmetic composition according to an embodiment of the present invention contains (D) water. (D) water can be used as a solvent. The (D) water contained in the hair cosmetic composition according to the embodiment of the present invention can be used to dissolve or disperse the above-mentioned components and any optional components described later, and is not particularly limited as long as it is commonly used in cosmetics, for example, ion-exchanged water, purified water, tap water, etc. can be used.

[0024] The content of (D) water in the hair cosmetic composition according to the embodiment of the present invention is not particularly limited, but is preferably 70% by mass or more, more preferably 72.5% by mass or more, and even more preferably 75% by mass or more. By having a (D) water content of 70% by mass or more per hair cosmetic composition, it is possible to create an emulsified composition with viscosity that allows for the stable incorporation of various necessary components, and this composition can achieve both excellent setting properties and improved hair texture. Furthermore, the water content (D) per hair cosmetic composition according to the embodiment of the present invention is preferably 99% by mass or less, more preferably 95% by mass or less, and even more preferably 92% by mass or less. In the hair cosmetic composition according to the embodiment of the present invention, the water content (D) is preferably 65 to 99% by mass of the cosmetic composition, more preferably 70 to 95% by mass, and more preferably 75 to 92% by mass. In the hair cosmetic composition according to the embodiment of the present invention, (D) water may be included as the residue of the content (mass%) of the essential components mentioned above and the content (mass%) of optional components, taking into consideration the dosage form and form of the hair cosmetic composition.

[0025] ((E) Tertiary amine compounds) The hair cosmetic composition according to the embodiment of the present invention may contain (E) a tertiary amine compound as an optional component within a range that does not impair the effects of the present invention. The (E) tertiary amine compound is a tertiary amine compound that does not fall under the above (A) cationic surfactant. In this invention, cationic properties are achieved through neutralization, and by including (E) a tertiary amine compound, an emulsion is formed as a cosmetic, which electrostatically adsorbs to damaged hair, thereby restoring flexibility and hydrophobicity to the hair and making it easier to comb.

[0026] The (E) tertiary amine compound contained in the hair cosmetic composition according to the embodiment of the present invention is not particularly limited as long as it is commonly used in cosmetics. Examples include N-(2-hydroxy-3-stearoxylpropyl)-N,N-dimethylamine, N-stearoxylpropyl-N,N-dimethylamine, or N-stearamidopropyl-N,N-dimethylamine, with N-(2-hydroxy-3-stearoxylpropyl)-N,N-dimethylamine, N-stearamidopropyl-N,N-dimethylamine, and N-behenamidopropyl-N,N-dimethylamine being preferred.

[0027] The content of the (E) tertiary amine compound in the hair cosmetic composition according to the embodiment of the present invention is not particularly limited as long as the desired effect is imparted, but is preferably 0.01% by mass or more, more preferably 0.02% by mass or more, and even more preferably 0.05% by mass or more. By having a content of 0.01% by mass or more of the (E) tertiary amine compound per hair cosmetic composition, it is possible to provide the hair with improved texture such as manageability and smoothness, and to achieve both excellent setting properties and improved hair texture. Furthermore, the content of (E) tertiary amine compound per hair cosmetic composition according to the embodiment of the present invention is preferably 1% by mass or less, more preferably 0.2% by mass or less, and even more preferably 0.15% by mass or less. The content of (E) tertiary amine compound in the hair cosmetic composition according to the embodiment of the present invention is preferably 0.01 to 1% by mass, more preferably 0.02 to 0.2% by mass, and even more preferably 0.05 to 0.15% by mass.

[0028] (Other ingredients / additives) In addition to the above-mentioned components, the hair cosmetic composition according to the embodiment of the present invention may contain other components commonly used in cosmetics, pharmaceuticals, etc., as optional components (additives) within a range that does not impair the effects of the present invention. Such ingredients include, for example, solvents, liquid oils and fats, waxes (e.g., beeswax, carnauba wax, candelilla wax, rice bran wax, lanolin, jojoba seed oil, hydrogenated jojoba oil, etc.), hydrocarbon oils, higher fatty acids, ester oils, silicones (e.g., cyclopentasiloxane, dimethicone, amodimethicone, aminopropyl dimethicone, etc.), anionic surfactants, amphoteric surfactants, nonionic surfactants, UV absorbers, metal ion chelating agents, polysaccharides, amino acids, organic amines, water-soluble polymers (guar hydroxypropyltrimonium chloride, hydroxypropyl guar hydroxypropyltrimonium chloride, hydroxypropyl guar gum, cationized guar gum-2, hydroxypropyl guar gum, polyquaternium-7, polyquaternium-10, polyquaternium-16, polyquaternium-37, polyquaternium-51, polyquaternium-55, acrylamidopropyltrimonium) Examples of ingredients include chloride / acrylate copolymers, hydroxyethylcellulose, xanthan gum, tamarind gum, etc., high molecular weight emulsions, humectants (e.g., glycerin, diglycerin, sorbitol, maltitol, trehalose, dipropylene glycol, 1,3-butylene glycol, isopentyl diol, hyaluronic acid, etc.), pH adjusters, skin nutrients, vitamins, antioxidants, antioxidant aids, preservatives, surface treatment agents, fragrances, etc.

[0029] From the viewpoint of non-stickiness and ease of combing, the hair cosmetic composition according to the embodiment of the present invention preferably contains less than 0.05% of wax components, and more preferably contains no wax components. Furthermore, from the viewpoint of providing natural softness and moisture without stickiness or stiffness, the hair cosmetic composition according to the embodiment of the present invention preferably contains less than 0.05% of water-soluble high-molecular-weight components, and more preferably contains no water-soluble high-molecular-weight components. Furthermore, in order to prevent a decrease in manageability due to the imparting of stiffness and stickiness, it is preferable that the hair cosmetic composition according to the embodiment of the present invention does not contain higher fatty acids and polysaccharides.

[0030] The hair cosmetic composition according to the embodiment of the present invention can be manufactured by appropriately blending the above-mentioned components as needed, according to the desired dosage form.

[0031] In the hair cosmetic composition according to an embodiment of the present invention, the pH adjusting agent can be used to adjust the pH of the hair cosmetic composition to the above range. The pH of the hair cosmetic composition according to the embodiment of the present invention is preferably 2.0 to 6.0, and more preferably 2.5 to 5.5, from the viewpoint of being suitable for hair repair and ensuring the stability and preservative properties of the formulation. As pH adjusters, for example, as alkaline agents, ammonia or its salts; alkanolamines or their salts such as monoethanolamine, isopropanolamine, 2-amino-2-methylpropanol, 2-aminobutanol; alkanediamines or their salts such as 1,3-propanediamine; carbonates such as guanidine carbonate, sodium carbonate, potassium carbonate, sodium bicarbonate, potassium bicarbonate; hydroxides such as sodium hydroxide, potassium hydroxide, etc.; salts of organic acids other than (C) aromatic carboxylic acids such as sodium lactate, sodium citrate, sodium malate, sodium tartrate, sodium glutamate, disodium succinate, etc. can be used. In addition, as acidifying agents, inorganic acids such as hydrochloric acid and phosphoric acid; hydrochloride salts such as monoethanolamine hydrochloride; phosphates such as monopotassium dihydrogen phosphate and disodium monohydrogen phosphate; organic acids other than (C) aromatic carboxylic acids such as lactic acid, citric acid, malic acid, tartaric acid, glutamic acid, succinic acid, etc. can be used.

[0032] In the hair cosmetic composition according to the embodiment of the present invention, a solvent other than (D) water may be used. The solvent can be used to dissolve or disperse the above components and may be used in combination with (D) water. (D) As a solvent other than water, one or more alcohols commonly used in cosmetics, such as ethanol, may be appropriately selected and used. The type of solvent can be appropriately selected and used depending on the component to be dissolved. The amount of solvent is set appropriately according to the type and content of the above-mentioned component.

[0033] The hair cosmetic composition according to the embodiment of the present invention can be manufactured by commonly used methods and is not particularly limited. These components can be appropriately blended as needed to manufacture the hair cosmetic composition of the present invention according to the desired dosage form. For example, it can be obtained by conventional methods, such as sequentially adding the constituent components to water heated to about 60-80°C while stirring, and then cooling to room temperature. Alternatively, it can be obtained by heating components (A) to (C), and optionally component (E), to over 80°C to dissolve them and form a mixture, gradually adding this mixture to water (D) heated to over 80°C while stirring, stirring until the mixture is uniform after the addition of the mixture is complete, then cooling the entire mixture to below 50°C at a constant cooling rate, adding other components such as additives, and then cooling to room temperature.

[0034] The hair cosmetic composition according to the embodiment of the present invention may be a solubilized system, an emulsion system (oil-in-water type, water-in-oil type), a powder dispersion system, an oil-water two-layer system, or an oil-water-powder three-layer system. Among these, an emulsion hair cosmetic composition is preferred, and an oil-in-water emulsion hair cosmetic composition is particularly preferred in order to provide smooth application, a natural shine, and a pleasant texture.

[0035] The dosage form of the hair cosmetic according to the embodiment of the present invention is not particularly limited, but from the viewpoint of being a hair cosmetic that is not rinsed off after application to the hair, can be applied precisely to desired areas, and can be applied uniformly to the hair, examples include foam, liquid, mist, gel, emulsion, cream, lotion, spray, etc. Among these, emulsion or cream is preferred from the viewpoint of providing appropriate viscosity and good application and blendability, and making it easy to stably incorporate the necessary components for obtaining the effects of the present invention. Furthermore, in the case of hair cosmetics used in the form of a foam, mist, spray, etc., which are sprayed at the time of use, the hair cosmetic may contain a propellant. As the propellant, any propellant known in the field of aerosols can be used, such as liquefied gases such as propane, butane, pentane, and dimethyl ether, or compressed gases such as nitrogen and compressed air. The amount of these propellants to be blended is preferably about 30 to 60% by mass relative to 100% by mass of the hair cosmetic. [Examples]

[0036] The present invention will now be described in more detail by reference to examples, but the present invention is not limited thereto. Furthermore, the content in the following examples is expressed in mass percent unless otherwise specified.

[0037] [Examples 1-16, Comparative Examples 1-10] Each sample (hair cosmetic) was prepared by mixing the components using conventional methods to achieve the compositions shown in Tables 1-4 below. Specifically, components (A) to (C), the acid, and component (E) were heated to over 80°C to dissolve and form a mixture. This mixture was then gradually added to water (D), which was heated to over 80°C, while stirring. After the addition of the mixture was complete, it was stirred until it was homogenized. Then, it was cooled at a constant rate until the entire mixture was below 50°C, at which point other components such as additives were added, and the mixture was cooled to room temperature. For each sample, the setting properties and texture (flexibility, cohesion, uniformity of the coating, ease of handling, smoothness, moistness, and lack of oily stickiness) were evaluated according to the method described below. The evaluation results are shown in the respective tables.

[0038] [Set-based evaluation test] The setability of each sample was evaluated using the following procedure.

[0039] (Adjustment of hair bundles for evaluation) A bundle of human black hair (roots evenly trimmed) (manufactured by Beaulux, 30cm long, 10g in weight, product number BS-B3A) was washed with a plain shampoo of the following composition, rinsed with 40°C warm water, and thoroughly dried.

[0040] Plain shampoo composition: Ingredients (mass %) Sodium laureth sulfate (*1) 15.5 Cocamide MEA (*2) 4.0 EDTA-2Na 0.1 Citric acid 0.3 Sodium benzoate 0.5 Residual amount of イオン exchange water (residual) Total 100.0 *1: Uses Emal 227 (manufactured by Kao Corporation, active ingredient 27% by mass). *2: Uses Amicol CMEA (manufactured by Miyoshi Oil & Fat Co., Ltd.)

[0041] (Method for evaluating set properties) The aforementioned hair strands for evaluation were wrapped around a 25mm diameter hot curler (manufactured by Create, model number CIH-W06) that had been sufficiently heated, left for 25 minutes, and then styled. L0 was defined as the length of the hair strands immediately after removing the hot curlers, L1 as the length of the hair strands immediately after applying 0.5g each of the hair cosmetic products shown in each example and comparative example, and L2 as the length of the hair strands 2 hours later. The setting strength and setting retention were calculated as the setting properties of the hair using the following formulas. Each test was conducted five times under the same temperature and humidity conditions, and the average value was used.

[0042] Set strength: (L1-L0) / L0×100 Set holding force: (L2-L0) / (L1-L0) × 100-100

[0043] (Evaluation criteria for set properties) For each example and comparative example, the hair setting ability (setting strength, setting retention) was calculated as a ratio to the evaluation result of Comparative Example 1 using the following formula, and a score was calculated based on the evaluation result of Comparative Example 1.

[0044] (Formula for calculating the score) Set strength rating: Set strength of each example and comparative example / Set strength of Comparative Example 1 Set retention rating: Set retention of each example and comparative example / Set retention of Comparative Example 1

[0045] Based on the calculated scores, setting ability was judged according to evaluation criterion (A), and setting retention ability was judged according to evaluation criterion (B).

[0046] Judgment criteria (A): [Rating] : [Judgment] Less than 1.05: ◎ 1.05 or higher and less than 1.15: ○ 1.15 or higher and less than 1.25: △ 1.25 or higher: ×

[0047] Judgment criteria (B): [Rating] : [Judgment] Less than 0.80: ◎ 0.80 or higher and less than 0.95: ○ 0.95 or higher and less than 1.15: △ 1.15 or higher: ×

[0048] [Texture evaluation test] The texture of each sample was evaluated using the following procedure.

[0049] In the same manner as in the setting performance evaluation test described above, 0.5g each of the hair cosmetic products from the examples and comparative examples was applied to evaluation hair bundles, and five cosmetic evaluation panel members evaluated the hair texture on the following items: "flexibility," "manageability," "coating uniformity," "ease of combing," "smoothness," "moisture," and "lack of oiliness / stickiness." Each member made a sensory evaluation on a 5-point scale according to the following evaluation criteria (C).

[0050] Evaluation Criteria (C): [Evaluation Result]: [Rating] Much better than Comparative Example 1: 5 points Better than Comparative Example 1: 4 points Equivalent to Comparative Example 1: 3 points Slightly worse than Comparative Example 1: 2 points Defective compared to Comparative Example 1: 1 point

[0051] Furthermore, the average score of all panels evaluated according to the above evaluation criterion (C) was determined according to the following judgment criterion (D).

[0052] Judgment criteria (D): [Average score] : [Judgment] 3.8 or higher: ◎ 2.5 or higher and less than 3.8: ○ 1.5 or higher but less than 2.5: △ Less than 1.5: ×

[0053] [Table 1]

[0054] [Table 2]

[0055] [Table 3]

[0056] [Table 4]

[0057] The ingredients listed in Tables 1-4 were obtained from the following products. [Cationic surfactants] • Steartrimonium Chloride: Catinal STC-80 / Manufactured by Toho Chemical Industry Co., Ltd. (Contains 80% by mass of steartrimonium chloride (stearyltrimethylammonium chloride), 18% by mass of isopropanol, and 2% by mass of water. Indicated in the table as the pure content of steartrimonium chloride.) • Behentrimonium Chloride: Catinal BTC-80 / Manufactured by Toho Chemical Industry Co., Ltd. (Contains 77% by mass of behentrimonium chloride (behentrimonium ammonium chloride) and 23% by mass of isopropanol. Listed in the table as the pure content of behentrimonium chloride.) • Disteardimonium Chloride: Cotamin D86P / Manufactured by Kao Corporation (Contains 75% by mass of disteardimonium chloride (distearyldimethylammonium chloride), 16% by mass of isopropanol, and 9% by mass of water. In the table, it is listed as the pure content of disteardimonium chloride.)

[0058] [High-grade alcohol] • Stearyl alcohol: Calcol 8098 (manufactured by Kao Corporation) • Cetanol: Calcol 6098 (manufactured by Kao Corporation) • Behenyl alcohol: Calcol 220-80 (manufactured by Kao Corporation)

[0059] [Aromatic carboxylic acids] • Salicylic acid: Salicylic acid (manufactured by Ota Takashi Co., Ltd.) • Benzoic acid: Benzoic acid (food additive) (manufactured by Fushimi Pharmaceutical Co., Ltd.)

[0060] [Acids, salts of acids] • Lactic acid: Musashino Lactic Acid 90 (manufactured by Musashino Chemical Co., Ltd., 90% by mass product, therefore listed as pure content in the table) • Sodium lactate: Sodium lactate (50% by mass) (manufactured by Showa Chemical Co., Ltd., listed as pure content in the table) • Citric acid: Purified citric acid (crystalline) (manufactured by Fuso Chemical Industry Co., Ltd.) • Malic acid: DL-malic acid, Fuso Malate (manufactured by Fuso Chemical Industry Co., Ltd.) • Tartaric acid: L-tartaric acid (manufactured by Showa Chemical Co., Ltd.) • Glutamic acid: L-glutamic acid for cosmetics (manufactured by Ajinomoto Co., Inc.) • Succinic acid: CG-SA (manufactured by Nippon Shokubai Co., Ltd.)

[0061] [Tertiary amine compounds] • Stearamidopropyldimethylamine: N-Stearamidopropyl-N,N-dimethylamine, NIKKOL Amidoamine MPS (manufactured by Nikko Chemical Co., Ltd.) • Behenamidopropyldimethylamine: N-Behenamidopropyl-N,N-dimethylamine, NIKKOL Amidoamine MPB PLUS (manufactured by Nikko Chemical Co., Ltd.) • Stearyl PG Dimethylamine: N-(2-hydroxy-3-stearoxylpropyl)-N,N-dimethylamine, catinal SHPA-80 / Manufactured by Toho Chemical Industry Co., Ltd. (Contains 75% by mass of stearyl PG dimethylamine (N-(2-hydroxy-3-stearoxylpropyl)-N,N-dimethylamine) and 25% by mass of stearyl alcohol. In the table, it is listed as the pure content of stearyl PG dimethylamine.)

[0062] [Other ingredients / additives] • Hydroxystearic acid: 12-Hydroxystearic acid (manufactured by Ito Oil Co., Ltd.) • Candelilla Wax: Refined Candelilla Wax Super Refine (manufactured by Watahan Trading Co., Ltd.) • Dimethicone (5cSt): TSF451-5A (manufactured by Momentive) • Dimethicone (20 cSt): TSF451-20 (manufactured by Momentive) • Dimethicone (100,000 cSt): TSF451-10M (manufactured by Momentive) • Aminopropyl dimethicone: KF-8015 (manufactured by Shin-Etsu Chemical Co., Ltd.) • Cyclopentasiloxane: TSF405 (manufactured by Momentive)

[0063] As can be seen from the test results, the hair cosmetic compositions of the examples containing (A) a cationic surfactant, (B) a higher alcohol, (C) an aromatic carboxylic acid, and (D) water exhibited good setting properties and texture. Furthermore, regarding texture, it was better when (E) a tertiary amine compound was used in combination with components (A) to (D), when the pH of the composition was around 4 rather than around 3, and around 5 rather than around 4, when cetanol was selected as the (B) higher alcohol component, and when stearyl alcohol, cetanol, and behenyl alcohol were combined. On the other hand, Comparative Example 1, a hair cosmetic that did not use aromatic carboxylic acids but instead used hydroxystearic acid and candelilla wax, had insufficient setting power and could not achieve both setting and texture. Furthermore, Comparative Examples 2-7, which did not use aromatic carboxylic acids but instead used organic acids other than aromatic carboxylic acids, tended to have inferior setting power and lower texture scores compared to the Examples, failing to achieve both setting power and texture.

Claims

1. A leave-in hair cosmetic comprising (A) a cationic surfactant, (B) a higher alcohol, (C) an aromatic carboxylic acid, and (D) water.

2. Furthermore, the leave-in hair cosmetic according to claim 1, further comprising (E) a tertiary amine compound.

3. The leave-in hair cosmetic according to claim 1 or 2, wherein the (C) aromatic carboxylic acid is at least one selected from salicylic acid and benzoic acid.

4. The leave-in hair cosmetic composition according to claim 1 or 2, comprising 0.05 to 0.15% by mass of the aforementioned (C) aromatic carboxylic acid.

5. The leave-in type hair cosmetic according to claim 1 or 2, comprising 70% by mass or more of the aforementioned (D) water.

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