Hair cosmetics

Abstract

The present invention provides a hair cosmetic that has good applicability, imparts a natural shine, moisturizing effect, and bundled texture, and exhibits good stability at 50°C. [Solution] A hair cosmetic comprising (A) a polyhydric alcohol, (B) a water-soluble thickener, (C) one or more selected from a hydrocarbon oil that is liquid at 25°C or an ester oil that is liquid at 25°C, and (D) one or more selected from a polyoxyethylene-additive nonionic surfactant or a polyglycerin-additive nonionic surfactant, wherein the content of component (A) is 4 to 28% by mass, the content of component (B) is 0.005 to 0.8% by mass, the content of component (C) is 38 to 78% by mass, and the content of component (D) is 0.5 to 7% by mass.

Description

Technical Field

[0001] The present invention relates to hair cosmetics.

Background Art

[0002] There are many types of hairstyles due to the diversification of consumers' preferences. In recent years, hairstyles with a moist feeling, gloss, and bundling feeling similar to wet hair have been particularly popular. This hairstyle is called wet hair by consumers and can be formed by using hair cosmetics.

[0003] Conventionally, hair grease exists as a hair cosmetic that can form wet hair. Hair grease contains a large amount of surfactant and oily components for the purpose of imparting a moist feeling, gloss, and bundling feeling, and its dosage form is often an oil-in-water emulsion. However, since hair grease contains a large amount of surfactant, there are problems such as poor coating property of uniformly applying hair grease to hair without unevenness, and there is a problem that there is a glare and a natural gloss cannot be obtained. In addition, emulsions have problems related to stability in that they separate into water and oil over time.

[0004] Regarding the above stability, separation is likely to occur when left for a long time in summer or in places where the temperature is high, such as outdoors or in a car, so stability at a high temperature of 50°C is particularly required.

[0005] In response to such problems, Patent Document 1 discloses that a hair styling agent containing at least one film-forming resin selected from dilauroyl glutamate, a polyol having a valence of 3 or more, a hydrocarbon oil, a nonionic surfactant having an HLB of 8 to 10, an anionic film-forming resin, and a nonionic film-forming resin, ethanol, and water can improve gloss, bundling feeling, and stability at 40°C.

[0006] Patent Document 2 discloses that a hair styling composition containing a hydrocarbon that is liquid at 25°C, a sucrose fatty acid ester, and water can improve the applicability, moisturizing effect, and bundled texture of the hair. [Prior art documents] [Patent Documents]

[0007] [Patent Document 1] Japanese Patent Publication No. 2020-172465 [Patent Document 2] Japanese Patent Publication No. 2011-148749 [Overview of the project] [Problems that the invention aims to solve]

[0008] However, while Patent Document 1 shows improvements in gloss, texture, and stability over time at 40°C, it does not examine applicability, moisturizing properties, or stability at high temperatures such as 50°C, leaving room for improvement.

[0009] While Patent Document 2 shows improvements in applicability, moisturizing effect, and bundle-like texture, it does not address natural shine or stability at high temperatures, leaving room for further improvement.

[0010] By the way, in addition to the aforementioned moistness and shine, hair texture also includes qualities related to hair movement, such as softness and firmness. In recent years, natural-looking hairstyles that give hair movement have become popular among consumers, so hair softness is also in demand. [Means for solving the problem]

[0011] As a result of diligent research, the inventors have found that by providing a hair cosmetic containing (A) a polyhydric alcohol, (B) a water-soluble thickener, (C) one or more selected from a hydrocarbon oil that is liquid at 25°C or an ester oil that is liquid at 25°C, and (D) one or more selected from a polyoxyethylene-additive nonionic surfactant or a polyglycerin-additive nonionic surfactant, wherein the content of component (A) is 4 to 28% by mass, the content of component (B) is 0.005 to 0.8% by mass, the content of component (C) is 38 to 78% by mass, the content of component (D) is 0.5 to 7% by mass, and further containing (E) a vegetable oil that is liquid at 25°C, a hair cosmetic can be obtained that has good applicability, imparts a natural shine, moisturizing effect, and bundled texture, has good stability at 50°C, and further imparts softness to the hair, thus completing the present invention. [Effects of the Invention]

[0012] The present invention provides a hair cosmetic that has good applicability, imparts a natural shine, moisturizing effect, and bundled texture, and exhibits good stability at 50°C.

[0013] The present invention provides a hair cosmetic that further enhances the softness of the hair. [Modes for carrying out the invention]

[0014] The present invention will be described in detail below. Unless otherwise specified, all units indicating content are in mass percent.

[0015] In this invention, "applicability" refers to the ability to apply the hair cosmetic product evenly and uniformly to the entire hair without unevenness.

[0016] In this invention, "natural shine" refers to a moderate, non-greasy shine obtained when the hair cosmetic is applied to the hair.

[0017] This invention contains (A) a polyhydric alcohol, from the viewpoint of natural gloss, moisturizing effect, and stability at 50°C.

[0018] The component (A) used in the present invention is not particularly limited. For example, glycerin, 1,3 - butylene glycol, sorbitol, diglycerin, polyglycerin with a polymerization degree of 3 to 10, ethylene glycol, polyethylene glycol, propylene glycol, dipropylene glycol, isoprene glycol, 1,2 - butanediol, 1,2 - pentanediol, 1,2 - hexanediol, 1,2 - octanediol, 1,2 - decanediol, maltitol, xylitol, inositol, etc. can be mentioned, and one or more of these can be contained.

[0019] Among the component (A) used in the present invention, from the viewpoints of improving coating property, natural glossiness and moist feeling, glycerin, 1,3 - butylene glycol, sorbitol, diglycerin are preferable, and glycerin is more preferable.

[0020] The content of the component (A) used in the present invention is 4 to 28%. Among these, preferably 6 to 25%, more preferably 8 to 22%. When the component (A) is less than 4%, a natural glossiness and moist feeling cannot be obtained, and the stability at 50°C deteriorates. When the component (A) exceeds 28%, a natural glossiness cannot be obtained, and the coating property and stability at 50°C deteriorate.

[0021] From the viewpoints of coating property and bundling feeling, the present invention contains (B) a water - soluble thickener.

[0022] The component (B) used in the present invention is not particularly limited. For example, acrylic acid - based thickeners, urethane - based thickeners, polysaccharide - based thickeners, clay - based thickeners, etc. can be mentioned, and one or more of these can be contained.

[0023] The acrylic acid-based thickener of component (B) used in the present invention is not particularly limited, but examples include carboxyvinyl polymer, acrylic acid / alkyl methacrylate copolymer, (ammonium acryloyldimethyltaurate / beheneth-25 methacrylate) crosspolymer, (ammonium acryloyldimethyltaurate / VP) copolymer, (ammonium acryloyldimethyltaurate / steareth-25 methacrylate) crosspolymer, (ammonium acryloyldimethyltaurate / laureth-7 methacrylate) copolymer, (ammonium acryloyldimethyltaurate / steareth-8 methacrylate) copolymer, (acrylamide / sodium acryloyldimethyltaurate / acrylic acid) copolymer, (acrylamide / sodium acryloyldimethyltaurate) copolymer, (sodium acrylate / sodium acryloyldimethyltaurate / acrylamide) copolymer, (sodium acrylate / sodium acryloyldimethyltaurate) copolymer, (sodium acrylate / Examples include liloyldimethyltaurate copolymer, (sodium acrylate / acryloyldimethyltaurate / dimethylacrylamide) crosspolymer, (hydroxyethyl acrylate / sodium acryloyldimethyltaurate) copolymer, (hydroxyethyl acrylate / acryloyldimethyltaurate) copolymer sodium, (sodium acryloyldimethyltaurate / VP) crosspolymer, (sodium acryloyldimethyltaurate / PEG-8 diacrylate) crosspolymer, (sodium acryloyldimethyltaurate / methacrylamide laurate) copolymer, (ammonium acryloyldimethyltaurate / carboxyethylammonium acrylate) crosspolymer, (dimethylacrylamide / sodium acryloyldimethyltaurate) crosspolymer, (acrylates / steareth-20 methacrylate) copolymer, (acrylates / vinyl neodecanoate) crosspolymer, (acrylates / ceteth-20 itaconicate) copolymer, sodium acrylate graft starch, etc.

[0024] The urethane thickener as the component (B) used in the present invention is not particularly limited, and examples thereof include (Steareth-100 / PEG-136 / HDI) copolymer, (PEG-240 / Decyltetradeceth-20 / HDI) copolymer, bis-stearyl PEG / PPG-8 / 6 (SMDI / PEG-400) copolymer, (PEG-150 / Decyl alcohol / SMDI) copolymer, (PEG-150 / Stearyl alcohol / SMDI) copolymer, bis-lauryl (Cocaminopropylamine / HDI / PEG-100) copolymer, bis (C16-20) isoalkoxy (TMHDI / PEG-90) copolymer, and the like.

[0025] The polysaccharide thickener as the component (B) used in the present invention is not particularly limited, and examples thereof include hydroxyethyl cellulose, hydroxypropyl methyl cellulose, tamarind seed gum, hydroxypropyl cellulose, methyl cellulose, ethyl cellulose, cetyl hydroxyethyl cellulose, stearoxy hydroxypropyl methyl cellulose, Caesalpinia spinosa gum, locust bean gum, guar gum, hydroxypropyl guar gum, pullulan, mannan, carrageenan, sodium alginate, sodium hyaluronate, and polysaccharide of Sirophysalis.

[0026] The clay thickener as the component (B) used in the present invention is not particularly limited, and examples thereof include bentonite, hectorite, montmorillonite, kaolinite, beidellite, nontronite, saponite, sauconite, stibnite, and the like.

[0027] Among the component (B) used in the present invention, from the viewpoint of improving the coating property and the bundling feeling, an acrylic thickener is preferable, more preferably carboxyvinyl polymer or acrylic acid / alkyl methacrylate copolymer, and still more preferably carboxyvinyl polymer.

[0028] The content of component (B) used in the present invention is 0.005 to 0.8%. Of this, preferably 0.01 to 0.5%, and more preferably 0.02 to 0.3%. If the content of component (B) is less than 0.005%, the application properties will be poor, and a bundled appearance will not be obtained. If the content of component (B) exceeds 0.8%, the application properties will be poor.

[0029] From the viewpoint of a natural gloss and moist feel, the present invention contains (C) one or more selected from hydrocarbon oils that are liquid at 25°C or ester oils that are liquid at 25°C.

[0030] The hydrocarbon oil that is liquid at 25°C for component (C) used in the present invention is not particularly limited, but examples include liquid paraffin, liquid isoparaffin, light isoparaffin, light liquid isoparaffin, heavy liquid isoparaffin, α-olefin oligomer, isododecane, dodecane, (C9-12)alkane, (C10-13)alkane, (C14-20)alkane, coconutalkane, squalane, squalene, hydrogenated farnesene, and the like.

[0031] The ester oil of component (C) used in the present invention is not particularly limited as it is liquid at 25°C, but examples include 2-ethylhexyl palmitate, caprylic / capric triglyceride, octyldodecyl myristate, glyceryl tri-2-ethylhexanoate, diisostearyl malate, oleyl oleate, decyl oleate, octyldodecyl oleate, 2-ethylhexyl hydroxystearate, isopropyl myristate, methylheptyl palmitate, di-2-ethylhexyl succinate, cetyl ethylhexanoate, isopropyl isostearate, cetyl isooctanoate, isononyl isononanoate, isodecyl isononanoate, isotridecyl isononanoate, hexyl laurate, octyldodecyl lactate, isostearyl pivalate, and the like.

[0032] Of the components (C) used in the present invention, from the viewpoint of improving natural glossiness, a hydrocarbon oil that is liquid at 25°C is preferred, more preferably liquid paraffin, liquid isoparaffin, light liquid isoparaffin, or heavy liquid isoparaffin, and even more preferably liquid paraffin or liquid isoparaffin.

[0033] The content of component (C) used in the present invention is 38 to 78%. Preferably, it is 42 to 76%, and more preferably 45 to 74%. If the content of component (C) is less than 38%, a natural gloss and moist feel cannot be obtained. If the content of component (C) exceeds 78%, a natural gloss cannot be obtained.

[0034] The present invention contains one or more nonionic surfactants selected from (D) polyoxyethylene-added nonionic surfactants or polyglycerin-added nonionic surfactants, from the viewpoint of bundled texture and stability at 50°C.

[0035] The polyoxyethylene-additive nonionic surfactant of component (D) used in the present invention is not particularly limited, but examples include polyoxyethylene alkyl ethers, polyoxyethylene hydrogenated castor oil, and polyoxyethylene sorbitan fatty acid esters.

[0036] The polyoxyethylene alkyl ether of component (D) used in the present invention is not particularly limited, but examples include polyoxyethylene cetyl ether (2 E.O.) (HLB: 5.3), polyoxyethylene cetyl ether (5 E.O.) (HLB: 9.5), polyoxyethylene cetyl ether (6 E.O.) (HLB: 10.4), polyoxyethylene cetyl ether (7 E.O.) (HLB: 11.2), polyoxyethylene cetyl ether (8 E.O.) (HLB: 11.9), and polyoxyethylene cetyl ether (10 E.O.) (HLB Polyoxyethylene cetyl ether (13 E.O.) (HLB: 14.1), polyoxyethylene cetyl ether (15 E.O.) (HLB: 14.6), polyoxyethylene cetyl ether (20 E.O.) (HLB: 15.7), polyoxyethylene cetyl ether (23 E.O.) (HLB: 16.1), polyoxyethylene cetyl ether (25 E.O.) (HLB: 16.4), polyoxyethylene cetyl ether (30 E.O.) (HLB: 16.9), polyoxyethylene cetyl ether (40 E.O.) (HLB: 17.6) ), polyoxyethylene cetyl ether (150 E.O.) (HLB: 19.3), polyoxyethylene lauryl ether (2 E.O.) (HLB: 6.4), polyoxyethylene lauryl ether (4 E.O.) (HLB: 9.7), polyoxyethylene lauryl ether (9 E.O.) (HLB: 13.6), polyoxyethylene lauryl ether (21 E.O.) (HLB: 16.7), polyoxyethylene lauryl ether (25 E.O.) (HLB: 17.1), polyoxyethylene stearyl ether (2 E.O.) (HLB: 4.9), Polyoxyethylene stearyl ether (4 E.O.) (HLB: 7.9), polyoxyethylene stearyl ether (11 E.O.) (HLB: 12.8), polyoxyethylene stearyl ether (15 E.O.) (HLB: 14.2), polyoxyethylene stearyl ether (20 E.O.) (HLB: 15.3), polyoxyethylene stearyl ether (30 E.O.) (HLB: 16.6), polyoxyethylene stearyl ether (40 E.O.) (HLB: 17.3), polyoxyethylene behenyl ether (5 E.O.) (HLB: 8.1) Examples include polyoxyethylene behenyl ether (10 E.O.) (HLB: 11.5), polyoxyethylene behenyl ether (20 E.O.) (HLB: 14.6), and polyoxyethylene behenyl ether (30 E.O.) (HLB: 16.0).

[0037] The polyoxyethylene hydrogenated castor oil of component (D) used in the present invention is not particularly limited, but examples include polyoxyethylene hydrogenated castor oil (10 E.O.) (HLB: 6.4), polyoxyethylene hydrogenated castor oil (20 E.O.) (HLB: 9.7), polyoxyethylene hydrogenated castor oil (25 E.O.) (HLB: 10.8), polyoxyethylene hydrogenated castor oil (40 E.O.) (HLB: 13.1), and polyoxyethylene hydrogenated castor oil Examples include oil (50 E.O.) (HLB: 14.1), polyoxyethylene hydrogenated castor oil (60 E.O.) (HLB: 14.8), polyoxyethylene hydrogenated castor oil (80 E.O.) (HLB: 15.8), polyoxyethylene hydrogenated castor oil (100 E.O.) (HLB: 16.5), polyoxyethylene hydrogenated castor oil (150 E.O.) (HLB: 17.8), and polyoxyethylene hydrogenated castor oil (200 E.O.) (HLB: 18.1).

[0038] The polyoxyethylene sorbitan fatty acid ester of component (D) used in the present invention is not particularly limited, but examples include polyoxyethylene sorbitan monooleate (6 E.O.) (HLB: 11.5), polyoxyethylene sorbitan monooleate (21 E.O.) (HLB: 15.0), polyoxyethylene sorbitan trioleate (20 E.O.) (HLB: 10.8), and polyoxyethylene sorbitan tetraoleate (30 E.O.) (HLB: 11.5).

[0039] In this invention, "EO" refers to polyoxyethylene, and the value in parentheses represents the average number of moles of polyoxyethylene added.

[0040] The polyglycerin-added nonionic surfactant of component (D) used in the present invention is not particularly limited, but examples include polyglyceryl-10 laurate (HLB: 15.7), polyglyceryl-10 myristate (HLB: 15.3), polyglyceryl-10 palmitate (HLB: 14.9), polyglyceryl-10 stearate (HLB: 14.5), polyglyceryl-6 laurate (HLB: 13.8), polyglyceryl-6 myristate (HLB: 13.2), polyglyceryl-6 stearate (HLB: 12.2), and polyglyceryl-2 stearate (HLB: 6.9).

[0041] In the present invention, the average number of moles of polyoxyethylene added to the polyoxyethylene-added nonionic surfactant in component (D) is preferably 2 to 150, more preferably 2 to 40, and even more preferably 2 to 30, from the viewpoint of improving natural glossiness.

[0042] Of the components (D) used in the present invention, polyoxyethylene-added nonionic surfactants are preferred from the viewpoint of improving applicability and natural gloss, more preferably polyoxyethylene alkyl ethers and polyoxyethylene hydrogenated castor oil, and even more preferably polyoxyethylene alkyl ethers.

[0043] In the present invention, the number of carbon atoms in the alkyl group of the polyoxyethylene alkyl ether in component (D) is preferably 12 to 22, and more preferably 16 to 18, from the viewpoint of improving coatability and natural gloss.

[0044] The content of component (D) used in the present invention is 0.5 to 7%. Preferably, it is 0.7 to 6%, and more preferably 1 to 5%. If the content of component (D) is less than 0.5%, a bundled appearance cannot be obtained, and the stability at 50°C is poor. If the content of component (D) exceeds 7%, a natural glossy appearance cannot be obtained.

[0045] In this invention, HLB is an index that indicates the balance between hydrophilicity and lipophilicity (HYDROPHILE-LIPOPHILE BALANCE).

[0046] In this invention, HLB is a value obtained by the Griffin method.

[0047] The HLB of component (D) used in the present invention is preferably 4 to 20, and more preferably 5 to 18.

[0048] The hair cosmetic composition of the present invention may further contain (E) a vegetable oil that is liquid at 25°C, from the viewpoint of hair softness.

[0049] The (E) component used in the present invention is not particularly limited, but examples include peach kernel oil, argania spinosa kernel oil, olive oil, rice bran oil, macadamia nut oil, avocado oil, safflower oil, soybean oil, sunflower seed oil, grape seed oil, corn oil, rapeseed oil, lemon oil, orange oil, tea seed oil, camellia oil, peanut oil, shea butter oil, almond oil, castor oil, coconut oil, palm oil, sesame oil, wheat germ oil, evening primrose oil, rosehip oil, etc., and one or more of these may be included.

[0050] Of the components (E) used in the present invention, peach kernel oil and argania spinosa kernel oil are preferred from the viewpoint of improving hair softness, and peach kernel oil is more preferred.

[0051] The content of component (E) used in the present invention is preferably 0.001 to 3%, more preferably 0.002 to 3%, and even more preferably 0.005 to 3%. If the content of component (E) is less than 0.001%, there is a risk that the hair will not become soft. If the content of component (E) exceeds 3%, the fragrance derived from component (E) may impart a fragrance to the hair cosmetic, potentially causing discomfort during use.

[0052] The water content used in the present invention is not particularly limited, but is preferably 3 to 44%, more preferably 5 to 40%, and even more preferably 7 to 37%.

[0053] In addition to components (A) to (E) above, the hair cosmetic composition of the present invention may contain at least one of various components commonly used in cosmetics, quasi-drugs, pharmaceuticals, etc., such as polymers, oily components, higher alcohols, surfactants, plant extracts, humectants, chelating agents, protein derivatives, hydrolyzed proteins, stabilizers, antioxidants, vitamins, preservatives, dyes, pigments, powders, UV absorbers, fragrances, etc., to the extent that it does not impair the effect. However, it is not limited to these examples.

[0054] In the present invention, the hair cosmetic composition is preferably an oil-in-water emulsion in which the dispersed phase is an oily component and the continuous phase is an aqueous component.

[0055] The hair cosmetic composition in the present invention is not particularly limited, but it is preferable to prepare it in the form of a cream, lotion, gel, etc., before use.

[0056] The viscosity of the hair cosmetic composition in the present invention at 20°C is not particularly limited, but is preferably 5,000 to 200,000 mPa·s.

[0057] The viscosity of the hair cosmetic composition in this invention at 20°C was measured by filling a 140g sample bottle (Food 140 (manufactured by Daiichi Glass Co., Ltd.)) with 120g of the hair cosmetic composition prepared by a conventional method, allowing it to stand at 20°C for 1 day to regulate the temperature, and then measuring it using a Type B viscometer (Model: Digital Viscometer TVB-10M, manufactured by Toki Sangyo Co., Ltd.) with a No. 4 rotor for 1 minute at a rotation speed of 6 rpm.

[0058] The pH of the hair cosmetic composition in the present invention at 20°C is not particularly limited, but is preferably between 4 and 9.

[0059] The pH of the hair cosmetic composition in this invention at 20°C was measured using a glass electrode type hydrogen ion concentration indicator (F-71, manufactured by Horiba, Ltd.) after the hair cosmetic composition, prepared by a conventional method, was allowed to stand at 20°C for one day to regulate the temperature.

[0060] The hair cosmetic composition of the present invention can be used by filling it into containers such as tube containers, jar containers, containers with pump dispensers, and bottle containers with caps. [Examples]

[0061] The present invention will be described in more detail below with reference to examples, but these examples are not intended to limit the present invention in any way.

[0062] In the evaluation tests described herein, the ingredients and their contents in the hair cosmetic were varied and tested. All units indicating the content of each ingredient are in mass%, and these were prepared by conventional methods.

[0063] In the evaluation tests described herein, the following were assessed: "applicability," "natural shine," "moisture," "bundle effect," "stability at 50°C," and "hair softness."

[0064] The evaluations of "applicability," "natural shine," "moisture," "bundle effect," and "hair softness" described herein were carried out according to the following evaluation test methods and evaluation criteria. The scores for the evaluation items described in the Examples and Comparative Examples were calculated by summing the evaluation scores of 10 expert panelists according to the evaluation criteria for each evaluation test, and were evaluated as follows. 5 (Excellent): The total score from the 10 expert panelists is 45-50 points. 4 (Very Good): The total score from the 10 expert panelists was 35-44 points. 3 (Good): The total score from the 10 expert panelists was between 25 and 34 points. 2 (Poor): The total score from the 10 expert panelists is between 15 and 24 points. 1 (Poor): The total score from the 10 expert panelists was between 10 and 14 points.

[0065] "Applicability" <Evaluation Test Method> Ten expert panelists conducted an evaluation test on the applicability of the hair cosmetic products obtained in the examples and comparative examples. In the evaluation test, 2g of the hair cosmetic product obtained in the examples and comparative examples, which had been heated to 20°C, was spread on the palm of the hand and applied to a 100% human hair black wig (Queen Cut No. 775N, manufactured by Beaulux Co., Ltd.) under room temperature of 20°C and humidity of 60%, and the applicability was evaluated by sensory perception. <Evaluation Criteria> 5 points: I found it extremely easy to apply the hair cosmetic evenly and smoothly to the entire hair. 4 points: I found it very easy to apply the hair cosmetic evenly and smoothly to the entire hair. 3 points: I found it easy to apply the hair cosmetic evenly and smoothly to the entire hair. Two points: I found it somewhat difficult to apply the hair cosmetic evenly and without unevenness to the entire hair. 1. I found it difficult to apply the hair cosmetic evenly and without unevenness to the entire hair.

[0066] "Natural shine" <Evaluation Test Method> Ten expert panelists conducted evaluation tests on the natural shine of the hair cosmetic products obtained in the examples and comparative examples. In the evaluation test, 2g of the hair cosmetic product obtained in the examples and comparative examples, which had been warmed to 20°C, was spread on the palm of the hand and applied to a 100% human hair black wig (Queen Cut No. 775N, manufactured by Beaulux Co., Ltd.) under room temperature of 20°C and humidity of 60%, and the natural shine was evaluated by sensory perception. <Evaluation Criteria> 5 points: I felt it had a natural shine without being too shiny. 4 points: I felt it had a natural shine, although there was a slight shimmer. Or, I felt it had no shimmer and was very shiny. 3 points: I felt it had a natural shine, although it was slightly shimmery. Or, I felt it had a natural shine without any shimmer. Two points: I felt it was too shiny and had an unnatural gloss. Or, I felt it lacked shine and didn't have much gloss. 1 point: I felt it was very shiny and had an unnatural gloss. Alternatively, I felt it lacked shine and gloss.

[0067] "Moist feeling" <Evaluation Test Method> Ten expert panelists conducted a moisturizing effect evaluation test on the hair cosmetic products obtained in the examples and comparative examples. In the evaluation test, 2g of the hair cosmetic product obtained in the examples and comparative examples, which had been warmed to 20°C, was spread on the palm of the hand and applied to a 100% human hair black wig (Queen Cut No. 775N, manufactured by Beaulux Co., Ltd.) under room temperature of 20°C and humidity of 60%, and the moisturizing effect was evaluated by sensory perception. <Evaluation Criteria> 5 points: I felt it had excellent moisturizing properties. 4 points: I felt it was very moisturizing. 3 points: I felt it had a moisturizing effect. 2 points: I felt it wasn't very moisturizing. 1 point: I felt it lacked moisture.

[0068] "Bundled texture" <Evaluation Test Method> Ten expert panelists conducted an evaluation test on the texture of the hair cosmetics obtained in the examples and comparative examples. In the evaluation test, 2g of the hair cosmetics obtained in the examples and comparative examples, which had been warmed to 20°C, was spread on the palm of the hand and applied to a 100% human hair black wig (Queen Cut No. 775N, manufactured by Beaulux Co., Ltd.) under conditions of room temperature of 20°C and humidity of 60%, and the texture was evaluated by sensory perception. <Evaluation Criteria> 5 points: I felt it had excellent definition and hold. 4 points: I felt it had a very defined, bundled look. 3 points: I felt it had a bundled look. 2 points: I felt it didn't have much of a bundled look. 1 point: I felt it lacked definition.

[0069] "Hair softness" <Evaluation Test Method> Ten expert panelists conducted evaluation tests on the hair softness of the hair cosmetic products obtained in the examples and comparative examples. In the evaluation test, 2g of the hair cosmetic product obtained in the examples and comparative examples, which had been heated to 20°C, was spread on the palm of the hand and applied to a 100% human hair black wig (Queen Cut No. 775N, manufactured by Beaulux Co., Ltd.) under room temperature of 20°C and humidity of 60%, and the softness of the hair was evaluated by sensory perception. <Evaluation Criteria> 5 points: I felt the hair was exceptionally soft. 4 points: I felt the hair was very soft. 3 points: I felt the hair was soft. Points 2: I felt the hair wasn't very soft. 1 point: I felt the hair lacked softness.

[0070] The evaluation of "stability at 50°C" as described herein was carried out according to the following evaluation test methods and evaluation criteria.

[0071] "Stability at 50°C" <Evaluation Test Method> The hair cosmetic compositions obtained in the examples and comparative examples were subjected to stability evaluation tests at 50°C. In the evaluation test, 120g of the hair cosmetic compositions obtained in the examples and comparative examples were placed in 140g sample bottles (Food 140: manufactured by Daiichi Glass Co., Ltd.), stored in a constant temperature bath at 50°C for 30 days, and the hair cosmetic compositions removed from the constant temperature bath were evaluated by visual observation by one expert panelist. <Evaluation Criteria> ○: No separation of hair cosmetic was observed. ×: Separation of hair cosmetic was observed.

[0072] [Table 1]

[0073] [Table 2]

[0074] [Table 3]

[0075] [Table 4]

[0076] [Table 5]

[0077] Examples 1 to 45, shown in Tables 1 to 5, yielded good results regarding applicability, natural gloss, moisturizing effect, bundled texture, and stability at 50°C.

[0078] [Table 6]

[0079] Examples 46 to 51, shown in Table 6, yielded favorable results regarding hair softness.

[0080] The following is an example of a hair cosmetic product, example 52.

[0081] <Example 52> Component Content (mass%) (A) Glycerin 14.00 (A) 1,3-Butylene glycol 1.00 (B) Carboxyvinyl polymer 0.08 (B) Tremella fuciformis polysaccharide 0.01 (C) Liquid isoparaffin 45.00 (C) Liquid paraffin 20.00 (C) Tri(caprylic / capric acid) glyceryl 0.01 (D) Polyoxyethylene cetyl ether (20 E.O.) 2.00 (HLB:15.7) (D) Polyoxyethylene cetyl ether (2E.O.) 1.00 (HLB:5.3) (E) Peach kernel oil 0.01 Disodium edetate 0.02 Methyl parahydroxybenzoate 0.20 γ-docosalactone 0.01 Peach fruit extract 0.01 Peach fruit water 0.01 Peach leaf extract 0.01 Potassium hydroxide 0.03 Fragrance 0.15 Purified water 16.45 Total 100.00 Viscosity (20℃): 65,000mPa·s pH (20℃): 6.5

[0082] The hair cosmetic obtained in Example 52 showed good results in terms of applicability, natural shine, moisturizing effect, bundled texture, stability at 50°C, and hair softness. [Industrial applicability]

[0083] The present invention provides a hair cosmetic that has good applicability, imparts a natural shine, moisturizing effect, and bundled texture, and exhibits good stability at 50°C.

Claims

1. (A) Polyhydric alcohols (B) Water-soluble thickener (C) One or more selected from hydrocarbon oils that are liquid at 25°C or ester oils that are liquid at 25°C. (D) One or more nonionic surfactants selected from polyoxyethylene-added nonionic surfactants or polyglycerin-added nonionic surfactants. A hair cosmetic comprising the following, wherein the content of component (A) is 4 to 28% by mass, the content of component (B) is 0.005 to 0.8% by mass, the content of component (C) is 38 to 78% by mass, and the content of component (D) is 0.5 to 7% by mass.

2. The hair cosmetic composition according to claim 1, wherein the (A) component is one or more selected from glycerin, 1,3-butylene glycol, sorbitol, or diglycerin.

3. The hair cosmetic composition according to claim 1, wherein the (B) component is one or more selected from carboxyvinyl polymers or alkyl acrylic acid / alkyl methacrylate copolymers.

4. The hair cosmetic composition according to claim 1, wherein the (C) component is one or more selected from liquid paraffin or liquid isoparaffin.

5. The hair cosmetic composition according to claim 1, wherein the (D) component is a polyoxyethylene alkyl ether having 12 to 22 carbon atoms in the alkyl group.

6. The hair cosmetic composition according to claim 5, wherein the average number of added moles of polyoxyethylene in component (D) is 2 to 30.

7. Furthermore, the hair cosmetic composition according to claim 1, further comprising (E) a vegetable oil that is liquid at 25°C.

8. The hair cosmetic according to claim 7, wherein the (E) component is peach kernel oil.

9. The hair cosmetic composition according to claim 7 or claim 8, wherein the content of component (E) is 0.001 to 3% by mass.

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