Hair cosmetic composition

Abstract

The present invention provides a hair cosmetic composition that blends well with excessively damaged, damp hair, leaves no stickiness on the hands after application, easily detangles hair, and provides good manageability of hair after drying, while also exhibiting excellent uniformity in appearance. [Solution] A hair cosmetic composition comprising (A) an ester oil having 10 to 29 carbon atoms that is liquid at 20°C, (B) a non-silicone nonionic surfactant with an HLB value of 9 to 20, and (C) a monohydric alcohol having 2 to 4 carbon atoms, wherein the content of component (A) in the composition is 4% by mass or more, and the water content in the composition is 15% by mass or less.

Description

[Technical Field]

[0001] This invention relates to a hair cosmetic composition. [Background technology]

[0002] Hair cosmetics for damage care are known. For example, Patent Document 1 proposes a hair cosmetic that, when applied to dry hair, can evenly wet and spread regardless of the level of hair damage, dries quickly after application, does not give a squeaky feeling or a wet feeling to the hair, and allows the hair to be naturally styled without creating clumps after drying. This hair cosmetic contains a polymer for hair cosmetics that has solubility or dispersibility in a predetermined amount of water or ethanol, and a monohydric alcohol with 1 to 4 carbon atoms and a liquid oil with a predetermined structure having 9 to 21 carbon atoms, in a predetermined ratio. Patent Document 2 proposes a hair cosmetic that not only provides damage care effects such as smoothness, moisture, and shine to damaged hair, but also makes it easier to separate tangled, matted, and snagged hair. This hair cosmetic contains a predetermined amount of a volatile oil agent, a predetermined amount of a lower alcohol, a liquid ester oil, and a lactone derivative, all of which have a kinematic viscosity and volatile content within a predetermined range at 25°C, and is dispensed in a mist form. [Prior art documents] [Patent Documents]

[0003] [Patent Document 1] Japanese Patent Publication No. 2017-105768 [Patent Document 2] Japanese Patent Publication No. 2021-187814 [Overview of the project] [Problems that the invention aims to solve]

[0004] However, the hair cosmetics described in Patent Documents 1 and 2 are applied to dry hair, and no hair cosmetic composition has been achieved that satisfies all the requirements of good compatibility with wet and damaged hair, no stickiness on the hands after application, ease of detangling hair, and good manageability of hair after drying. Furthermore, neither of the hair cosmetics disclosed in Patent Documents 1 and 2 mentions the care effect on hair after chemical treatments that cause greater damage to the hair, such as powder bleaching. Furthermore, in practical use, the stability of hair cosmetic products is also important; specifically, they must not separate, precipitate, or otherwise exhibit a uniform appearance.

[0005] The present invention relates to a hair cosmetic composition that provides good compatibility with excessively damaged, wet hair, no stickiness on the hands after application, ease of detangling hair, and good manageability of hair after drying, while also exhibiting excellent uniformity in appearance. [Means for solving the problem]

[0006] The inventors have found that a hair cosmetic composition containing a predetermined amount or more of an ester oil having 10 to 29 carbon atoms that is liquid at 20°C, a non-silicone nonionic surfactant with an HLB value of 9 to 20, and a monohydric alcohol having 2 to 4 carbon atoms, wherein the water content in the composition is predetermined or less, can solve the above problem. In other words, the present invention relates to the following. [1] A hair cosmetic composition, The aforementioned composition comprises the following components (A) to (C): (A) Ester oil with 10 to 29 carbon atoms that is liquid at 20°C (B) Non-silicone nonionic surfactant with an HLB value of 9 to 20 (C) Monohydric alcohol with 2 to 4 carbon atoms It contains, The content of component (A) in the composition is 4% by mass or more. A hair cosmetic composition having a water content of 15% by mass or less. [2]A hair treatment method, The method sequentially includes the following steps (I) and (II), and does not include a step of rinsing the hair between step (I) and step (II). Step (I): A step of applying the hair cosmetic composition described in [1] to wet hair Step (II): A step of drying the hair to which the hair cosmetic composition has been applied [Advantages of the Invention]

[0007] According to the present invention, it is possible to provide a hair cosmetic composition that has good affinity for wet hair that has been excessively damaged, has no stickiness on the hands after application, is easily detangled, has good coherence after drying, and is excellent in appearance uniformity. [Brief Description of the Drawings]

[0008] [Figure 1] It is a photographed image by a laser microscope of the hair after treatment with a powder bleach and repeated shampooing, which was used in the evaluation of the examples. [Embodiments for Carrying Out the Invention]

[0009] [Definitions] In this specification, "hair" mainly means human head hair, but also includes hair cut off from the human head. "Hair that has been excessively damaged" (hereinafter, also simply referred to as "(excessively) damaged hair") means that one or more chemical treatments selected from the group consisting of hair coloring, bleaching, powder bleaching, and perm treatment and shampooing treatment are repeated, and the dynamic receding contact angle of the hair tip at 25°C and a relative humidity of 65% RH is 0°, and when observing the hair tip with a laser microscope, it means hair in a state where a part of the cuticle is lost and the cortex is exposed. The chemical treatment typically includes a powder bleaching treatment. "Wet hair" means hair after a step of increasing the moisture content of the hair. A method of making the hair wet will be described later. In this specification, "liquid" means that the viscosity measured in a Type B viscometer at a given temperature is 100 mPa·s or less. For example, a TVB10M type viscometer (manufactured by Toki Sangyo Co., Ltd.) can be used as the Type B viscometer and measurements can be taken under the following conditions.

[0010] (1) When the viscosity is less than 100 mPa·s Rotor: L / Adp, 6rpm, 60sec (2) When the viscosity is between 100 mPa·s and 1,000 mPa·s Rotor: M-1, 6rpm, 60sec (3) When the viscosity is 1,000 mPa·s or more and less than 5,000 mPa·s Rotor: M-3, 12 rpm, 60 sec Unless otherwise specified, "specified temperature" refers to room temperature (25°C). Furthermore, in this specification, "containing component X" or "containing component X" also means "composed of component X".

[0011] [Hair cosmetic composition] The hair cosmetic composition of the present invention comprises the following components (A) to (C): (A) Ester oil with 10 to 29 carbon atoms that is liquid at 20°C (B) Non-silicone nonionic surfactant with an HLB value of 9 to 20 (C) Monohydric alcohol with 2 to 4 carbon atoms The composition contains the above, wherein the content of component (A) in the composition is 4% by mass or more, and the water content in the composition is 15% by mass or less. The hair cosmetic composition of the present invention, having the above-described composition, provides excellent compatibility with excessively damaged, wet hair, no stickiness on the hands after application, ease of detangling hair, and good manageability of hair after drying, as well as excellent uniformity of appearance.

[0012] The reason why the hair cosmetic composition of the present invention produces the above effects is not clear, but it is presumed to be as follows. In damaged hair, such as hair treated with bleach or hair colorants, the surface of the oil-based ingredients is more hydrophilic compared to undamaged hair. Therefore, it has been particularly difficult to spread hydrophobic oil-based ingredients onto damaged hair when it is wet. Furthermore, in severely damaged hair, such as hair treated with powder bleach, not only is the surface hydrophilic, but the hair also becomes softer and more prone to breakage when wet, requiring a higher level of care. The hair cosmetic composition of the present invention uses a predetermined amount or more of component (A), which is a specific ester oil, and component (B), which is a non-silicone nonionic surfactant with an HLB of a predetermined value or higher, as oil components. When the hair cosmetic composition comes into contact with wet hair, a large amount of water is present relative to the hair cosmetic composition, so it is thought that component (B) acts as an emulsifier to form an emulsion in which the hydrophobic component (A) forms a dispersed layer and water forms a continuous layer. As a result, it is thought that the composition blends well with hydrophilic, wet, damaged hair, can be spread thinly and evenly over the entire hair, does not leave a sticky feeling on the hands, and makes it easier to detangle the hair. Furthermore, it is thought that the inclusion of component (C), which is a monohydric alcohol with 2 to 4 carbon atoms in the hair cosmetic composition, improves the blending of components (A) and (B) in predetermined amounts or more with water when applied to wet, damaged hair, thereby promoting emulsification. Furthermore, excessively damaged hair, such as hair with a history of powder bleaching, not only becomes hydrophilic on the surface but also becomes soft and brittle when wet. However, by spreading the hair cosmetic composition of the present invention thinly and evenly over excessively damaged hair, tangles become easier to untangle, resulting in a hair breakage suppression effect.

[0013] During the drying process after applying the hair cosmetic composition, component (C) and water in the composition volatilize, concentrating and thickening the oil. A slightly viscous and uniform oil layer containing a predetermined amount or more of component (A) and component (B) remains on the entire damaged hair. This is thought to result in improved manageability of the hair after drying.

[0014] Furthermore, it is believed that if the hair cosmetic composition contains a predetermined amount or more of component (A), as well as components (B) and (C), and the water content is below a predetermined amount, the compatibility of each component will be good, preventing separation, precipitation, etc., and improving the uniformity of the appearance. In addition, since components (B) and (C) have high compatibility with water, it is believed that the uniformity of the appearance can be maintained even if a small amount of moisture is mixed in during use or storage of the composition. However, the mechanism of action of the present invention is not limited to the above.

[0015] <Component (A): Ester oil with 10 to 29 carbon atoms, liquid at 20°C> Examples of ester oils used as component (A) include synthetic ester oils, natural oils and fats, etc., which are liquid at 20°C and have 10 to 29 carbon atoms. For example, one or more selected from the group consisting of esters of monocarboxylic acids and monohydric alcohols, esters of monocarboxylic acids and polyhydric alcohols, and esters of polyhydric acids and monohydric alcohols, which are liquid at 20°C and have 10 to 29 carbon atoms.

[0016] The carbon number of component (A) is 10 or more, preferably 12 or more, more preferably 14 or more, and even more preferably 16 or more, from the viewpoint of improving good compatibility with damaged hair in a wet state, lack of stickiness on the hands after application, ease of detangling hair, and good manageability of hair after drying. It is also 29 or less, preferably 27 or less, more preferably 25 or less, even more preferably 22 or less, and even more preferably 20 or less.

[0017] Examples of esters of monovalent carboxylic acids and monovalent alcohols include esters represented by the following general formula (1). R 1 -COO-R 2 (1) In general formula (1), R 1 R represents a linear or branched alkyl or alkenyl group having 1 to 27 carbon atoms, which may be substituted with a hydroxyl group, or an aromatic hydrocarbon group having 6 to 27 carbon atoms. 2represents a linear or branched alkyl group or alkenyl group having 1 to 27 carbon atoms. From the viewpoints of being liquid at 20°C, good compatibility with damaged hair in a wet state, no stickiness on hands after application, ease of detangling of hair, and good coherence of hair after drying, preferably, R 1 and R 2 at least one of them is a branched alkyl group or alkenyl group, more preferably at least one of R 1 and R 2 is a branched alkyl group, still more preferably, R 1 and R 2 are both branched alkyl groups.

[0018] When R 1 is an alkyl group or alkenyl group, the number of carbon atoms is preferably 7 or more, and preferably 23 or less, more preferably 19 or less, still more preferably 17 or less, even more preferably 13 or less, even more preferably 11 or less, even more preferably 9 or less. When R 1 is an aromatic hydrocarbon group, the number of carbon atoms is 6 or more, and preferably 22 or less, more preferably 20 or less, still more preferably 18 or less. The number of carbon atoms of R 2 is preferably 2 or more, more preferably 4 or more, still more preferably 6 or more, and preferably 22 or less, more preferably 18 or less, still more preferably​​​​​​​​​Specific examples of esters represented by general formula (1) include isodecyl neopentanoate, cetyl ethylhexanoate, stearyl ethylhexanoate, isononyl isononanoate, isotridecyl isononanoate, hexyldecyl ethylhexanoate, hexyl laurate, isoamyl laurate, isostearyl laurate, butyl myristate, isopropyl myristate, decyl myristate, isotridecyl myristate, isopropyl palmitate, ethylhexyl palmitate, butyl stearate, ethylhexyl stearate, isopropyl isostearate, ethyl oleate, isodecyl oleate, ethyl linoleate, isopropyl linoleate, and lysine. One or more selected from the group consisting of methyl benzoate and alkyl (C12-15) benzoates are examples, preferably including one or more selected from the group consisting of isodecyl neopentanoate, cetyl ethylhexanoate, stearyl ethylhexanoate, isononyl isononanoate, isotridecyl isononanoate, hexyldecyl ethylhexanoate, hexyl laurate, isoamyl laurate, isostearyl laurate, butyl myristate, isopropyl myristate, decyl myristate, isotridecyl myristate, isopropyl palmitate, ethylhexyl palmitate, butyl stearate, ethylhexyl stearate, and isopropyl isostearate.

[0020] Examples of esters of monovalent carboxylic acids and polyvalent alcohols include esters represented by the following general formula (2). R 3 -(OCOR 4 ) p (2) In general formula (2), R 3 R represents a polyhydric alcohol residue and is a hydrocarbon group having 2 to 6 carbon atoms, which may preferably have an ether bond. 4 represents a monovalent carboxylic acid residue with 1 to 12 carbon atoms, and p represents an integer between 2 and 10. R 3Examples of polyhydric alcohol residues include glycerol residues, ethylene glycol residues, propylene glycol residues, neopentyl glycol residues, and preferably glycerol residues. Furthermore, the number of p is the same as the number of hydroxyl groups present in the polyhydric alcohol. R 6 The alkyl group is preferably a linear or branched alkyl group having 4 or more carbon atoms, preferably 10 or fewer, more preferably 8 or fewer, and even more preferably 7 or fewer. More preferably, in general formula (2), R 3 This is a glycerol residue, R 4 It is an ester in which the branched alkyl group has 4 to 7 carbon atoms.

[0021] Specific examples of esters represented by general formula (3) include one or more selected from the group consisting of propylene glycol dicaprate, neopentyl glycol dicaprate, neopentyl glycol diethylhexanoate, di(caprylic / capric acid)propanediol, ethylene glycol diethylhexanoate, tri(caprylic / capric acid)glyceryl, and triethylhexanoin, preferably containing triethylhexanoin.

[0022] Examples of esters of polycarboxylic acids and monohydric alcohols include esters represented by the following general formula (3). R 5 -(COOR 6 ) q (3) In general formula (3), R 5 R represents a polyvalent carboxylic acid residue having 2 to 10 carbon atoms, and preferably a hydrocarbon group having a hydroxyl group. 6 represents a monohydric alcohol residue with 1 to 11 carbon atoms, and q is an integer between 2 and 10. Furthermore, q is the same number as the carboxyl groups present in the polyhydric carboxylic acid. R 5Examples of polyvalent carboxylic acid residues include malic acid residues, succinic acid residues, adipic acid residues, sebacic acid residues, trimellitic acid residues, and the like, and preferably one or more selected from the group consisting of malic acid residues, succinic acid residues, and adipic acid residues. R 6 The C1 is preferably a linear or branched alkyl group having 2 or more carbon atoms, more preferably 3 or more, preferably 9 or fewer, more preferably 8 or fewer, even more preferably 6 or fewer, and even more preferably 5 or fewer. More preferably, in general formula (3), R 5 This is an adipic acid residue, R 6 It is an ester in which the branched alkyl group has 2 to 8 carbon atoms.

[0023] Specific examples of esters represented by general formula (3) include one or more selected from the group consisting of diisostearyl malate, diethylhexyl succinate, diisopropyl adipate, diisobutyl adipate, diethylhexyl sebacate, and diisopropyl sebacate, and preferably include one or more selected from the group consisting of diisopropyl adipate and diisobutyl adipate.

[0024] Among the above, from the viewpoint of improving how well it blends with damaged hair in a wet state, the lack of stickiness on the hands after application, the ease with which tangled hair can be detangled, and the manageability of the hair after drying, component (A) preferably contains one or more selected from the group consisting of esters of monovalent carboxylic acids and monohydric alcohols, esters of monovalent carboxylic acids and polyhydric alcohols, and esters of polyhydric carboxylic acids and monohydric alcohols, which are liquid at 20°C and have 10 to 29 carbon atoms; more preferably contains one or more selected from the group consisting of esters of monovalent carboxylic acids and monohydric alcohols represented by the general formula (1), esters of monovalent carboxylic acids and polyhydric alcohols represented by the general formula (2), and esters of polyhydric carboxylic acids and monohydric alcohols represented by the general formula (3), which are liquid at 20°C; and even more preferably, in the general formula (1), R 1 is a branched alkyl group having 7 to 17 carbon atoms, and R2 An ester in which R is a branched alkyl group having 6 to 18 carbon atoms, in the general formula (2), 3 This is a glycerol residue, R 4 Esters in which R is a branched alkyl group having 4 to 7 carbon atoms, and in the general formula (3), 5 This is an adipic acid residue, R 6 It contains one or more selected from the group consisting of esters having 2 to 8 carbon atoms in a branched alkyl group, and more preferably isodecyl neopentanoate, cetyl ethylhexanoate, stearyl ethylhexanoate, isononyl isononanoate, isotridecyl isononanoate, hexyldecyl ethylhexanoate, hexyl laurate, isostearyl laurate, butyl myristate, isopropyl myristate, decyl myristate, isotridecyl myristate, isopropyl palmitate, palmitate It comprises one or more selected from the group consisting of ethylhexyl stearate, ethylhexyl stearate, isopropyl isostearate, caprylic / capric triglyceride, triethylhexanoin, diisopropyl adipate, and diisobutyl adipate, and more preferably one or more selected from the group consisting of isononyl isononanoate, hexyldecyl ethylhexanoate, triethylhexanoin, and diisopropyl adipate, and more preferably isononyl isononanoate.

[0025] The content of component (A) in the hair cosmetic composition is preferably 4% by mass or more, more preferably 5% by mass or more, more preferably 8% by mass or more, even more preferably 10% by mass or more, even more preferably 15% by mass or more, and even more preferably 18% by mass or more, from the viewpoint of improving how well it blends with damaged hair when wet, how easily it detangles hair after application, and how well it keeps hair together after drying. Furthermore, from the viewpoint of improving how well it blends with damaged hair when wet and how it prevents stickiness on the hands after application, the content is preferably 85% by mass or less, more preferably 80% by mass or less, even more preferably 70% by mass or less, even more preferably 60% by mass or less, even more preferably 60% by mass or less, even more preferably 50% by mass or less, even more preferably 45% by mass or less, even more preferably 40% by mass or less, and even more preferably 30% by mass or less.

[0026] <Ingredient (B): Non-silicone nonionic surfactant with an HLB value of 9 to 20> The nonionic surfactant used as component (B) is a non-silicone-based nonionic surfactant with an HLB value of 9 to 20. In this specification, "non-silicone-based nonionic surfactant" means a nonionic surfactant that does not contain Si atoms in its molecule.

[0027] The HLB value of component (B) is 9 or higher, preferably 9.5 or higher, more preferably 10 or higher, even more preferably 10.5 or higher, and 20 or lower, preferably 18 or lower, more preferably 16 or lower, even more preferably 14 or lower, even more preferably 13 or lower, and even more preferably 12 or lower, from the viewpoint of improving how well it blends with damaged hair when wet, how it does not leave hands sticky after application, how easily it detangles hair, how well it keeps hair together after drying, and also from the viewpoint of improving the uniformity of the appearance of the composition. The HLB (Hydrophile-Lypophile Balance) as defined herein is a value that indicates the affinity of a surfactant for water and oil, and can be determined by the Griffin method using the following formula. HLB = 20 × [(Molecular weight of hydrophilic groups in the surfactant) / (Molecular weight of the surfactant)] Examples of the above-mentioned "hydrophilic groups" include hydroxyl groups and ethyleneoxy groups.

[0028] Component (B) may be one or more selected from the group consisting of polyoxyalkylene alkyl ethers, polyoxyalkylene alkenyl ethers, sucrose fatty acid esters, glycerin fatty acid esters, sorbitan fatty acid esters, polyoxyalkylene fatty acid esters, polyoxyalkylene glycerin fatty acid esters, polyoxyalkylene sorbitan fatty acid esters, polyoxyalkylene sorbitan fatty acid esters, alkyl glyceryl ethers, alkyl glucosides, polyoxyalkylene alkylamines, and polyoxyalkylene hydrogenated castor oil, all of which have an HLB value of 9 or more and 20 or less. Component (B) preferably contains one or more selected from the group consisting of polyoxyalkylene alkyl ethers, polyoxyalkylene fatty acid esters, polyoxyalkylene glycerin fatty acid esters, polyoxyalkylene sorbitan fatty acid esters, polyoxyalkylene sorbitan fatty acid esters, and polyoxyalkylene hydrogenated castor oil, with an HLB value of 9 to 20.

[0029] Of the components (B) mentioned above, the number of carbon atoms in the alkyl or alkenyl group in polyoxyalkylene alkyl ethers, polyoxyalkylene alkenyl ethers, alkyl glyceryl ethers, alkyl glucosides, and polyoxyalkylene alkylamines, and the number of carbon atoms in the fatty acids in sucrose fatty acid esters, glycerin fatty acid esters, sorbitan fatty acid esters, polyoxyalkylene fatty acid esters, polyoxyalkylene glycerin fatty acid esters, polyoxyalkylene sorbitan fatty acid esters, and polyoxyalkylene sorbitan fatty acid esters are preferably 8 or more, more preferably 12 or more, and preferably 22 or less, more preferably 18 or less, from the viewpoint of improving how well the product blends with damaged hair in a wet state, how easily it detangles hair after application, how well the hair stays together after drying, and improving the uniformity of the composition's appearance.

[0030] Furthermore, among the components (B), the average number of added moles of alkylene oxide in polyoxyalkylene alkyl ethers, polyoxyalkylene alkenyl ethers, polyoxyalkylene fatty acid esters, polyoxyalkylene glycerin fatty acid esters, polyoxyalkylene sorbitan fatty acid esters, polyoxyalkylene sorbitan fatty acid esters, polyoxyalkylene alkylamines, and polyoxyalkylene hydrogenated castor oil (hereinafter referred to as "AO average number of added moles") is preferably 2 or more, more preferably 4 or more, even more preferably 5 or more, even more preferably 8 or more, even more preferably 10 or more, even more preferably 15 or more, and also preferably 150 or less, more preferably 80 or less, even more preferably 60 or less, even more preferably 40 or less, even more preferably 30 or less, and even more preferably 25 or less. Note that the average number of moles of AO added is a numerical average.

[0031] Among the components (B) mentioned above, the polyoxyalkylene alkyl ether is preferably a polyoxyethylene alkyl ether having an alkyl group with 8 to 22 carbon atoms, more preferably 12 to 18 carbon atoms, and more preferably a polyoxyethylene alkyl ether having an alkyl group with 8 to 22 carbon atoms, more preferably 12 to 18 carbon atoms, and having an average number of moles of ethylene oxide added (average number of moles of EO added) which is preferably 2 to 150, more preferably 4 to 80, even more preferably 5 to 60, even more preferably 5 to 40, even more preferably 5 to 30, even more preferably 5 to 25, even more preferably 8 to 25, even more preferably 10 to 25, and even more preferably 15 to 25.

[0032] The polyoxyalkylene alkyl ether used as component (B) preferably comprises one or more selected from the group consisting of polyoxyethylene lauryl ether, polyoxyethylene myristyl ether, polyoxyethylene cetyl ether, polyoxyethylene stearyl ether, polyoxyethylene octyldodecyl ether, and polyoxyethylene alkyl (C12-14) ether; more preferably comprises one or more selected from the group consisting of polyoxyethylene lauryl ether, polyoxyethylene cetyl ether, polyoxyethylene stearyl ether, and (C12-14)s-pareth-9; and even more preferably comprises one or more selected from the group consisting of polyoxyethylene stearyl ether and (C12-14)s-pareth-9. Specific examples of polyoxyalkylene alkyl ethers include polyoxyethylene lauryl ethers manufactured by Kao Corporation: "Emulgen 104P" (Laureth-4, HLB=9.7), "Emulgen 105" (HLB=9.7), "Emulgen 106" (Laureth-5, HLB=10.5), "Emulgen 108" (HLB=12.1), "Emulgen 109P" (HLB=13.6), "Emulgen 120" (HLB=15.3), "Emulgen 123P" (Laureth-23, HLB=16.9), "Emulgen 130K" (HLB=18.1), "Emulgen 147" (HLB=18.4), and polyoxyalkylene "Emulgen 210P" (Ceteareth-7, HLB=10.7), "Emulgen 220" (Ceteareth-13, HLB=14.2), which are ethylene cetyl ethers; "Emulgen 306P" (Steareth-6, HLB=9.4), "Emulgen 320P" (Steareth-13, HLB=13.9), "Emulgen 350" (HLB=17.8), which are polyoxyethylene stearyl ethers; "Softanol 90" ((C12-14)s-Pareth-9, polyethylene glycol ether of C12-14 aliphatic secondary alcohol, HLB=13.3) manufactured by Nippon Shokubai Co., Ltd.; "NIKKOL" manufactured by Nikko Chemicals Co., Ltd. Examples include "BC-5.5" (ceteth-6, HLB=10.5), "NIKKOL BC-10" (ceteth-10, HLB=13.5), "NIKKOL BC-15" (ceteth-15, HLB=15.5), and "NIKKOL BC-30" (ceteth-30, HLB=19.5).

[0033] Among the components (B) mentioned above, the polyoxyalkylene fatty acid ester is preferably a polyoxyethylene fatty acid ester, more preferably the fatty acid has 8 to 22 carbon atoms, more preferably 12 to 18 carbon atoms, and the average number of moles of ethylene oxide added (average number of moles of EO added) is preferably 2 to 150, more preferably 4 to 80, even more preferably 5 to 60, even more preferably 8 to 60, even more preferably 10 to 60, and even more preferably 15 to 60. The polyoxyalkylene fatty acid ester used as component (B) preferably includes one or more selected from the group consisting of polyethylene glycol monolaurate, polyethylene glycol monostearate, polyethylene glycol monooleate, and polyethylene glycol distearate. Specific examples of polyoxyalkylene fatty acid esters include Kao Corporation's "Emanon 1112" (polyethylene glycol monolaurate, HLB=13.7), "Emanon 3199VB" (polyethylene glycol monostearate, HLB=19.4), "Emanon 4110" (polyethylene glycol monooleate, HLB=11.6), "Emanon 3299VB" (polyethylene glycol distearate, HLB=18.9), and "Emanon 3299RV" (polyethylene glycol distearate, HLB=19.2).

[0034] Among the components (B) mentioned above, the polyoxyalkylene glycerin fatty acid ester is preferably a polyoxyethylene glycerin fatty acid ester, more preferably the fatty acid has 8 to 22 carbon atoms, more preferably 12 to 18 carbon atoms, and the average number of moles of ethylene oxide added (average number of moles of EO added) is preferably 2 to 150, more preferably 4 to 80, even more preferably 5 to 60, even more preferably 10 to 40, and even more preferably 15 to 40. The polyoxyalkylene glycerin fatty acid ester used as component (B) preferably comprises one or more selected from the group consisting of polyoxyethylene glyceryl stearate, polyoxyethylene glyceryl triisostearate, and polyoxyethylene coconut oil fatty acid glyceryl, and more preferably comprises polyoxyethylene glyceryl triisostearate. Specific examples of polyoxyalkylene glycerin fatty acid esters include "M Fine Oil ISG-20T" (PEG-20 glyceryl triisostearate, HLB=10.9), "M Fine Oil ISG-8M" (PEG-8 glyceryl isostearate, HLB=12.5), and "M Fine Oil ISG-20M" (PEG-20 glyceryl isostearate, HLB=15.7), all manufactured by Miyoshi Oil & Fat Co., Ltd.

[0035] Among the components (B) mentioned above, the polyoxyalkylene sorbitan fatty acid ester is preferably a polyoxyethylene sorbitan fatty acid ester, more preferably the fatty acid has 8 to 22 carbon atoms, more preferably 12 to 18 carbon atoms, and the average number of moles of ethylene oxide added (average number of moles of EO added) is preferably 2 to 150, more preferably 4 to 80, even more preferably 5 to 60, even more preferably 10 to 40, even more preferably 10 to 30, and even more preferably 15 to 25. The polyoxyalkylene sorbitan fatty acid ester used as component (B) preferably includes one or more selected from the group consisting of polyoxyethylene sorbitan monolaurate, polyoxyethylene sorbitan monopalmitate, polyoxyethylene sorbitan monostearate, polyoxyethylene sorbitan monooleate, polyoxyethylene sorbitan trioleate, polyoxyethylene sorbitan triisostearate, and polyoxyethylene coconut oil fatty acid sorbitan. Specific examples of polyoxyalkylene sorbitan fatty acid esters include polyoxyethylene sorbitan monooleate (average number of added EO moles 20) (Polysorbate 20), polyoxyethylene sorbitan monostearate (average number of added EO moles 20) (Polysorbate 60), polyoxyethylene sorbitan monooleate (average number of added EO moles 20) (Polysorbate 80), and polyoxyethylene sorbitan monooleate (average number of added EO moles 20) (Polysorbate 85).

[0036] Among the components (B) mentioned above, the polyoxyalkylene sorbitan fatty acid ester is preferably a polyoxyethylene sorbitan fatty acid ester, more preferably the fatty acid has 8 to 22 carbon atoms, more preferably 12 to 18 carbon atoms, and the average number of moles of ethylene oxide added (average number of moles of EO added) is preferably 2 to 150, more preferably 4 to 80, even more preferably 5 to 80, even more preferably 10 to 60, and even more preferably 15 to 60. The polyoxyalkylene sorbitic acid ester used as component (B) preferably includes one or more selected from the group consisting of mono-, di-, tri- or tetra-laurate polyoxyethylene sorbitic acid, mono-, di-, tri- or tetra-oleate polyoxyethylene sorbitic acid, and mono-, di-, tri- or tetra-stearate polyoxyethylene sorbitic acid. Specific examples of polyoxyalkylene sorbitol fatty acid esters include tetraoleate sorbeth-30, tetraoleate sorbeth-40, and tetraoleate sorbeth-60.

[0037] Among the components (B) mentioned above, the polyoxyalkylene hydrogenated castor oil is preferably polyoxyethylene hydrogenated castor oil, and the average number of moles of ethylene oxide added (average number of moles of EO added) is preferably 2 to 150, more preferably 4 to 80, even more preferably 5 to 80, even more preferably 10 to 60, and even more preferably 15 to 60. Specific examples of polyoxyalkylene hydrogenated castor oil include Kao Corporation's "Emanon CH-40" (polyoxyethylene hydrogenated castor oil (40E.O.), HLB=12.5).

[0038] Component (B) may consist of one or more types. Among the above, component (B) more preferably contains one or more selected from the group consisting of polyoxyalkylene alkyl ethers and polyoxyalkylene glycerin fatty acid esters having an HLB value of 9 to 20, from the viewpoint of improving how well it blends with damaged hair when wet, the absence of stickiness on the hands after application, the ease with which tangled hair can be detangled, the manageability of the hair after drying, and the uniformity of the appearance of the composition, and even more preferably polyoxyethylene alkyl ethers and polyoxyethylene glycerin fatty acid esters having an HLB value of 9 to 20. It contains one or more selected from the group consisting of fatty acid esters, and more preferably one or more selected from the group consisting of polyoxyethylene stearyl ether, polyoxyethylene alkyl (C12-14) ether, polyoxyethylene glyceryl stearate, and polyoxyethylene glyceryl triisostearate, with an HLB value of 9 to 20, and more preferably one or more selected from the group consisting of polyoxyethylene (6) stearyl ether, (C12-14)s-pareth-9, and PEG-20 glyceryl triisostearate. Furthermore, component (B) more preferably comprises polyoxyethylene glycerin fatty acid ester, more preferably one or more selected from the group consisting of polyoxyethylene glyceryl stearate, polyoxyethylene glyceryl triisostearate, and polyoxyethylene coconut oil fatty acid glyceryl, more preferably polyoxyethylene glyceryl triisostearate, and more preferably PEG-20 glyceryl triisostearate.

[0039] The content of component (B) in the hair cosmetic composition is preferably 0.1% by mass or more, more preferably 0.2% by mass or more, even more preferably 0.5% by mass or more, even more preferably 0.8% by mass or more, even more preferably 1% by mass or more, even more preferably 2% by mass or more, and even more preferably 3% by mass or more, from the viewpoint of improving how well it blends with damaged hair when wet, how little stickiness there is on the hands after application, how easily it detangles the hair, how well it keeps the hair together after drying, and even more preferably 2% by mass or more.

[0040] The mass ratio of component (A) to component (B) in the hair cosmetic composition [(A) / (B)] is preferably 2 or more, more preferably 2.5 or more, even more preferably 3 or more, and even more preferably 4 or more, from the viewpoint of improving good compatibility with wet damaged hair, ease of detangling hair after application and good manageability of hair after drying, and improving the uniformity of the composition's appearance. Furthermore, from the viewpoint of improving good compatibility with wet damaged hair, lack of stickiness on the hands after application and improving the uniformity of the composition's appearance, it is preferably 25 or less, more preferably 20 or less, even more preferably 18 or less, even more preferably 15 or less, even more preferably 12 or less, even more preferably 10 or less, even more preferably 8 or less, and even more preferably 6 or less.

[0041] <Component (C): Monohydric alcohol with 2 to 4 carbon atoms> The monohydric alcohol used as component (C) comprises one or more alcohols selected from the group consisting of ethanol, n-propyl alcohol, isopropyl alcohol, n-butyl alcohol, isobutyl alcohol, sec-butyl alcohol, and tert-butyl alcohol, preferably comprising one or more alcohols selected from the group consisting of ethanol and isopropyl alcohol, and more preferably comprising ethanol.

[0042] The content of component (C) in the hair cosmetic composition is preferably 5% by mass or more, more preferably 8% by mass or more, even more preferably 11% by mass or more, even more preferably 20% by mass or more, even more preferably 30% by mass or more, even more preferably 40% by mass or more, even more preferably 50% by mass or more, and even more preferably 60% by mass or more, from the viewpoint of improving good compatibility with wet damaged hair, lack of stickiness on hands after application, ease of detangling hair, good manageability of hair after drying, and even more preferably 80% by mass or less.

[0043] The mass ratio of component (A) to component (C) in the hair cosmetic composition [(A) / (C)] is preferably 0.05 or higher, more preferably 0.10 or higher, even more preferably 0.15 or higher, even more preferably 0.20 or higher, and even more preferably 0.25 or higher, from the viewpoint of improving the blendability with wet damaged hair, the absence of stickiness on the hands after application, the ease of detangling hair, the manageability of hair after drying, and the uniformity of the appearance of the composition. Furthermore, from the viewpoint of improving the blendability with wet damaged hair, the absence of stickiness on the hands after application, the ease of detangling hair, the manageability of hair after drying, and even more preferably 15 or lower, more preferably 10 or lower, even more preferably 8 or lower, even more preferably 6 or lower, even more preferably 5 or lower, even more preferably 3 or lower, even more preferably 1 or lower, and even more preferably 0.6 or lower.

[0044] The mass ratio of component (B) to component (C) in the hair cosmetic composition [(B) / (C)] is preferably 0.005 or higher, more preferably 0.010 or higher, even more preferably 0.02 or higher, even more preferably 0.03 or higher, and even more preferably 0.04 or higher, from the viewpoint of improving good compatibility with wet damaged hair, lack of stickiness on hands after application, ease of detangling hair, good manageability of hair after drying, and improved uniformity of the composition's appearance. Furthermore, from the viewpoint of improving good compatibility with wet damaged hair, lack of stickiness on hands after application, ease of detangling hair, good manageability of hair after drying, and improved uniformity of the composition's appearance, it is preferably 10 or lower, more preferably 5 or lower, even more preferably 2 or lower, even more preferably 1 or lower, even more preferably 0.5 or lower, even more preferably 0.2 or lower, even more preferably 0.1 or lower, and even more preferably 0.08 or lower.

[0045] The total content of components (A) to (C) in the hair cosmetic composition is preferably 9.5% by mass or more, more preferably 20% by mass or more, even more preferably 40% by mass or more, even more preferably 50% by mass or more, even more preferably 60% by mass or more, even more preferably 70% by mass or more, even more preferably 80% by mass or more, and even more preferably 90% by mass or more, from the viewpoint of improving how well it blends with damaged hair when wet, how non-sticky the hands are after application, how easily tangled hair can be detangled, how well the hair can be managed after drying, and improving the uniformity of the appearance of the composition. It is also 100% by mass or less, preferably 99.9% by mass or less, and more preferably 99.5% by mass or less.

[0046] <Component (D): Modified silicone with hydrophilic groups> The hair cosmetic composition of the present invention preferably further contains a modified silicone into which a hydrophilic group has been introduced as component (D). It is believed that the inclusion of component (D) improves the compatibility of component (A) and component (B) with water when applied to wet damaged hair, thereby promoting emulsion formation. Furthermore, it is believed that the lubricity of the hair after application of the hair cosmetic composition is improved, making it easier to untangle the hair. In addition, after drying, the oil layer containing components (A), (B), and (D) formed on the hair surface thickens, improving its adhesion to the hair, which is believed to further improve the manageability of the hair after drying.

[0047] Examples of modified silicones with hydrophilic groups introduced to be used as component (D) include one or more selected from the group consisting of polyether-modified silicones, carboxy-modified silicones, amino-modified silicones, aminopolyether-modified silicones, carbinol-modified silicones, polyglycerin-modified silicones, polysiloxane betaine, and poly(N-acylalkyleneimine)-modified organopolysiloxanes. Among the above, the modified silicone with introduced hydrophilic groups used as component (D) preferably includes one or more selected from the group consisting of polyether-modified silicone, carboxy-modified silicone, amino-modified silicone, aminopolyether-modified silicone, polyglycerin-modified silicone, and poly(N-acylalkyleneimine)-modified organopolysiloxane, from the viewpoint of improving compatibility with damaged hair in a wet state, ease of detangling hair after application, and good manageability of hair after drying, as well as improving the uniformity of the composition's appearance and solubility in component (C).

[0048] Polyether-modified silicone is a modified silicone in which polyether groups are introduced into the main chain, side chains, and / or terminals of the silicone. The polyether group preferably includes one or more selected from the group consisting of polyethylene oxy groups, polypropylene oxy groups, and polyalkylene oxy groups in which ethylene oxy groups (EO) and propylene oxy groups (PO) are added in a block-like or random manner, more preferably polyethylene oxy groups, and even more preferably polyethylene oxy groups. As polyether-modified silicones, compounds in which polyether groups are grafted onto a silicone main chain, and compounds in which silicone and polyether groups are bonded in a block-like manner can also be used.

[0049] Specific examples of polyether-modified silicones include PEG-3 dimethicone, PEG-9 dimethicone, PEG-9 methyl ether dimethicone, PEG-10 dimethicone, PEG-11 methyl ether dimethicone, PEG-12 dimethicone, PEG / PPG-20 / 22 butyl ether dimethicone, PEG-32 methyl ether dimethicone, PEG-9 polydimethylsiloxyethyl dimethicone, lauryl PEG-9 polydimethylsiloxyethyl dimethicone, cetyl PEG / PPG-10 / 1 dimethicone, PEG / PPG-30 / 10 dimethicone, and linear polyether-modified silicones in which dimethyl silicone units and polyether units are copolymerized alternately. Examples of commercially available polyether-modified silicones include the KF series (KF-6004, KF-6011, KF-6012, KF-6013, KF-6015, KF-6016, KF-6017, KF-6028, KF-6038, KF-6043, KF-6048) from Shin-Etsu Chemical Co., Ltd., and the DOWSIL series (BY25-339, SH3775M, FZ-2203) from Dow Toray Industries, Inc.

[0050] Carboxylated silicone is a modified silicone in which carboxyl groups are introduced to the side chains and / or terminals of the silicone, and preferably contains bis(carboxydecyl)dimethicone. Commercially available carboxy-modified silicones include DOWSIL BY 16-880 Fluid from Dow Toray Ltd., X-22-162C and X-22-3701E from Shin-Etsu Chemical Co., Ltd., and SilForm INX Fluid (bis(carboxydecyl)dimethicone) from Momentive Performance Materials.

[0051] Amino-modified silicones are modified silicones in which amino group-containing groups are introduced into the side chains and / or terminals of the silicone. Examples of amino group-containing groups include aminopropyl groups and N-(β-aminoethyl)iminopropyl groups. Specific examples of amino-modified silicones include one or more selected from the group consisting of aminoethylaminopropylsiloxane-dimethylsiloxane copolymer (amodimethicone), aminopropyl dimethicone, bis(aminopropyl)dimethicone, and bis(cetearyl)amodimethicone. Among these, the amino-modified silicone preferably includes one or more selected from the group consisting of amodimethicone and bis(cetearyl)amodimethicone, and more preferably includes bis(cetearyl)amodimethicone.

[0052] Commercially available amino-modified silicones include the DOWSIL series from Dow Toray Ltd. (BY 16-275, BY 16-213, BY 16-849 Fluid, BY 16-853 U, BY 16-871, BY 16-879 B, BY 16-892, FZ-3705, FZ-3710 Fluid, FZ-3760, FZ-3785, SF 8417 Fluid), and "SILICONE XF42-C4570" from Momentive Performance Materials.

[0053] Aminopolyether-modified silicones are modified silicones in which amino group-containing groups and polyether groups are introduced into the main chain, side chains, and / or terminals of the silicone. Examples of amino group-containing groups include aminopropyl groups and N-(β-aminoethyl)iminopropyl groups. The polyether group preferably includes one or more selected from the group consisting of polyethylene oxy groups, polypropylene oxy groups, and polyalkylene oxy groups in which ethylene oxy groups (EO) and propylene oxy groups (PO) are added in a block-like or random manner, more preferably polyethylene oxy groups, and even more preferably polyethylene oxy groups. Specific examples of aminopolyether-modified silicones include one or more selected from the group consisting of (bisisobutyl PEG-14 / amodimethicone) copolymer and (bisisobutyl PEG-15 / amodimethicone) copolymer. Examples of commercially available amino-modified silicones include "DOWSIL SILSTYLE 104" and "DOWSIL SILSTYLE 201" manufactured by Dow Toray Industries, Inc.

[0054] Polyglycerin-modified silicones are modified silicones in which polyglycerin chains are introduced to the side chains and / or terminals of the silicone. Examples include polyglyceryl-3 disiloxane dimethicone, polyglyceryl-3 polydimethylsiloxyethyl dimethicone, lauryl polyglyceryl-3 polydimethylsiloxyethyl dimethicone, and bis(polyglyceryl-3 oxyphenylpropyl) dimethicone. Examples of commercially available polyglycerin-modified silicones include the KF series (KF-6100, KF-6104, KF-6106, KF-6105) from Shin-Etsu Chemical Co., Ltd., and "Sofcare GS-G" (bis(polyglyceryl-3 oxyphenylpropyl) dimethicone) from Kao Corporation.

[0055] Examples of poly(N-acylalkyleneimine)-modified organopolysiloxanes include poly(N-formylethyleneimine)organopolysiloxane, poly(N-acetylethyleneimine)organopolysiloxane, and poly(N-propionylethyleneimine)organopolysiloxane, and preferably include poly(N-propionylethyleneimine)methylsiloxane, which is represented by the INCI name: polysilicone-9.

[0056] Among the above, from the viewpoint of improving compatibility with damaged hair in a wet state, ease of detangling hair after application, and manageability of hair after drying, as well as improving the uniformity of the composition's appearance, component (D) more preferably comprises one or more selected from the group consisting of polyether-modified silicone, polyglycerin-modified silicone, and poly(N-acylalkyleneimine)-modified organopolysiloxane, and even more preferably PEG-3 dimethicone, PEG-9 dimethicone, and PEG-9 methyl ether Dimethicone, PEG-10 Dimethicone, PEG-11 Methyl Ether Dimethicone, PEG-12 Dimethicone, PEG / PPG-20 / 22 Butyl Ether Dimethicone, PEG-32 Methyl Ether Dimethicone, PEG-9 Polydimethylsiloxyethyl Dimethicone, Lauryl PEG-9 Polydimethylsiloxyethyl Dimethicone, Cetyl PEG / PPG-10 / 1 Dimethicone, PEG / PPG-30 / 10 Dimethicone, Polyglyceryl-3 Disiloxane Dimethicone, Polyglyceryl-3 Polydimethylsiloxyethyl It contains one or more selected from the group consisting of PEG-3 dimethicone, lauryl polyglyceryl-3 polydimethylsiloxyethyl dimethicone, bis(polyglyceryl-3 oxyphenylpropyl) dimethicone, poly(N-formylethyleneimine) organopolysiloxane, poly(N-acetylethyleneimine) organopolysiloxane, and poly(N-propionylethyleneimine) organopolysiloxane, and more preferably PEG-3 dimethicone, PEG-9 dimethicone, PEG-10 dimethicone, and PEG-1 It comprises one or more selected from the group consisting of 2-dimethicone, bis(polyglyceryl-3-oxyphenylpropyl)dimethicone, and poly(N-propionylethyleneimine)organopolysiloxane, and more preferably one or more selected from the group consisting of PEG-12 dimethicone, bis(polyglyceryl-3-oxyphenylpropyl)dimethicone, and poly(N-propionylethyleneimine)methylsiloxane, and more preferably poly(N-propionylethyleneimine)methylsiloxane.

[0057] If the hair cosmetic composition contains component (D), the content of component (D) in the hair cosmetic composition is preferably 0.1% by mass or more, more preferably 0.2% by mass or more, even more preferably 0.5% by mass or more, even more preferably 0.8% by mass or more, even more preferably 1% by mass or more, even more preferably 2% by mass or more, and even more preferably 2.5% by mass or more, from the viewpoint of improving the compatibility with damaged hair in a wet state, the ease with which tangles in the hair are undone after application, the manageability of the hair after drying, and even more preferably 20% by mass or less, more preferably 15% by mass or less, even more preferably 10% by mass or less, even more preferably 8% by mass or less, and even more preferably 6.5% by mass or less.

[0058] When the hair cosmetic composition contains component (D), the mass ratio of component (A) to component (D) in the hair cosmetic composition [(A) / (D)] is preferably 2 or more, more preferably 2.5 or more, even more preferably 2.8 or more, and still more preferably 3.2 or more, from the viewpoint of improving good compatibility with wet damaged hair, lack of stickiness on the hands after application, ease of detangling hair, good manageability of hair after drying, and improved uniformity of the composition's appearance. Furthermore, from the viewpoint of improving good compatibility with wet damaged hair, lack of stickiness on the hands after application, ease of detangling hair, good manageability of hair after drying, and improved uniformity of the composition's appearance, the mass ratio of component (A) to component (D) [(A) / (D)] is preferably 2 or more, more preferably 2.5 or more, even more preferably 2.8 or more, and still more preferably 3.2 or more.

[0059] The water content in the hair cosmetic composition is 15% by mass or less, preferably 12% by mass or less, more preferably 10% by mass or less, even more preferably 8% by mass or less, even more preferably 5% by mass or less, even more preferably 2% by mass or less, even more preferably 1.5% by mass or less, and even more preferably 1% by mass or less, and may be substantially omitted. In this specification, "substantially free" in a hair cosmetic composition means that the water content of the hair cosmetic composition is less than 1% by mass.

[0060] In hair cosmetic compositions, it is preferable to have a low content of volatile oils from the viewpoint of improving good compatibility with damaged hair in a wet state, non-stickiness of the hands after application, ease of detangling hair, good manageability of hair after drying, and improvement of the uniformity of the composition's appearance. In this specification, volatile oils are components other than components (A) to (D), which are liquid at 25°C, have a boiling point of 260°C or less at normal pressure (1013.25 hPa), and have a vapor pressure of 1.0 × 10⁻⁶ at 25°C. -1 This refers to oils with a Pa or higher rating. Examples of volatile oils include linear hydrocarbons such as n-decane, n-undecane, n-dodecane, n-tridecane, and n-tetradecane; branched hydrocarbons such as isodecane, isododecane, isohexadecane, and hydrogenated polyisobutene; cyclic hydrocarbons such as cyclodecane and cyclododecane; linear or branched silicones such as octamethyltrisiloxane, tetradecamethylhexasiloxane, methyltrimethicone, and methylpolysiloxane; and cyclic silicones such as octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, dodecamethylcyclohexasiloxane, and methylcyclopolysiloxane.

[0061] The content of volatile oils in the hair cosmetic composition is preferably 30% by mass or less, more preferably 25% by mass or less, even more preferably 20% by mass or less, even more preferably 15% by mass or less, even more preferably 10% by mass or less, even more preferably 5% by mass or less, even more preferably 2% by mass or less, even more preferably 1% by mass or less, and even more preferably substantially absent, from the viewpoint of improving how well it blends with damaged hair when wet, the absence of stickiness on the hands after application, the ease with which tangled hair can be untangled, the manageability of the hair after drying, and the uniformity of the appearance of the composition.

[0062] <Other ingredients> In addition to the above components, the hair cosmetic composition may appropriately contain other components commonly used in hair cosmetics. Examples of such components include non-volatile oils other than component (A); ionic surfactants; anti-dandruff agents; vitamins; bactericides; anti-inflammatory agents; preservatives; chelating agents; moisturizers; colorants such as dyes and pigments; extracts; pearlescent agents; fragrances; UV absorbers; antioxidants; photocatalysts; pH adjusters, etc.

[0063] <Types of hair cosmetic compositions (product forms)> Examples of hair cosmetic compositions (product forms) include hair shampoo, hair conditioner, hair treatment (including leave-in types), hair pack, and hair oil. Among these, hair conditioner, hair treatment, or hair oil is preferred, and hair oil is more preferred, from the viewpoint of effectively exhibiting good compatibility with damaged hair in a wet state, no stickiness on the hands after application, ease of detangling hair, and good manageability of hair after drying. Furthermore, it is preferable that the hair cosmetic composition is a leave-on type hair cosmetic composition that is applied to the hair and then dried without rinsing.

[0064] <Dosage Forms of Hair Cosmetic Compositions> The dosage form of the hair cosmetic composition of the present invention is not particularly limited and can be in the form of a liquid, spray, mist, etc., depending on the product form. When the hair cosmetic composition is a hair oil, its dosage form is preferably liquid. Furthermore, it is preferable to use the liquid hair oil by spraying it in a mist form.

[0065] The method for producing the hair cosmetic composition is not particularly limited. For example, it can be produced by blending components (A) to (C), as well as other components used as needed, using the method described in the examples, and mixing them using a known stirring device or the like.

[0066] [Hair treatment methods] The present invention provides a hair treatment method, the method comprising the following steps (I) and (II) in order, and not including a step of rinsing the hair between step (I) and step (II). Step (I): Step of applying the hair cosmetic composition to wet hair. Step (II): Step of drying the hair to which the hair cosmetic composition has been applied.

[0067] <Process (I)> In step (I), the hair cosmetic composition of the present invention is applied to wet hair. The hair referred to here is preferably damaged hair, from the viewpoint of effectively exhibiting the present invention. In step (I), for example, a step is taken to increase the moisture content of the hair to be treated to make it wet, and then the hair cosmetic composition is applied to the wet hair.

[0068] Methods to increase the moisture content of hair (to make the hair moist) include: (i) soaking in water, (ii) wetting or rinsing with water, (iii) washing with a hair cleansing agent composition, (iv) treating with a rinse-off type conditioner or treatment and then rinsing with water, (v) applying a water-containing spray or mist, (vi) applying steam, (vii) wrapping with a wet towel, (vii) wrapping with plastic wrap, aluminum foil, etc., while wet with water, and one or more of these methods can be used. After making the hair moist using the above methods, towel drying may be performed. The water content in wet hair is not particularly limited, but when the mass of hair after 24 hours of conditioning at 20°C and 65% relative humidity is taken as 1, the mass ratio of water to the mass of hair (mass of water / mass of hair) is preferably 0.05 or more, more preferably 0.10 or more, even more preferably 0.2 or more, even more preferably 0.3 or more, even more preferably 0.5 or more, even more preferably 0.7 or more, even more preferably 1.0 or more, preferably 5 or less, more preferably 3 or less, and even more preferably 2 or less.

[0069] The method of applying the hair cosmetic composition can be appropriately selected depending on the product form or dosage form, but examples include casting, spraying, or application, and two or more of these may be combined. When applying the hair cosmetic composition to hair, from the viewpoint of effectively exhibiting the effects of the present invention, it is preferable to apply it to the hair in spray form and then spread it by hand.

[0070] The amount of hair cosmetic composition applied to the hair is preferably 0.001 or more, more preferably 0.005 or more, even more preferably 0.03 or more, and still more preferably 0.05 or more, in terms of mass ratio to the dry mass of the hair (mass of hair cosmetic composition / dry mass of hair), and preferably 0.5 or less, more preferably 0.3 or less, even more preferably 0.2 or less, and still more preferably 0.1 or less. The hair to which it is applied only needs to be at least a portion of the scalp hair. In step (I), the hair cosmetic composition of the present invention provides good compatibility with damaged hair in a wet state, no stickiness on the hands after application, and ease of detangling hair.

[0071] The hair to which the hair cosmetic composition has been applied in step (I) is subjected to step (II) without a rinsing step. More specifically, the "rinsing step of the hair" means the step of washing off the hair cosmetic composition applied to the hair with water. In other words, the hair cosmetic composition used in step (I) is preferably a leave-on type hair cosmetic composition, more preferably a leave-on type hair conditioner, hair treatment, or hair oil, and even more preferably a hair oil.

[0072] <Process (II)> In step (II), the hair to which the hair cosmetic composition has been applied in step (II) is dried. The drying method in step (II) includes natural drying, but a method that actively dries the hair is preferred, such as drying with a hair dryer (cold or hot air), air drying, and a combination of two or more of these drying treatments. After performing step (II), the hair becomes more manageable thanks to the hair cosmetic composition of the present invention.

[0073] Furthermore, the hair cosmetic composition of the present invention can also be applied to fibers for headwear products other than hair. In this specification, "headwear products" means, for example, hair wigs, hairpieces, weaving, hair extensions, braided hair, hair accessories, doll hair, etc. "Fibers for headwear products" means fibers used in the aforementioned headwear products.

[0074] For headwear products, either naturally derived fibers or synthetic fibers may be used, but naturally derived fibers are preferred. Naturally derived fibers refer to fibers extracted from natural animals and plants (excluding human hair), or fibers artificially manufactured using proteins, polysaccharides, etc. as raw materials. Of these, fibers artificially manufactured using animal hair, or proteins or polysaccharides such as keratin, collagen, casein, as well as proteins derived from soybeans, peanuts, corn, silk, etc., are preferred. Regenerated protein fibers made from keratin, collagen, casein, soy protein, peanut protein, corn protein, silk protein (e.g., silk fibroin) are more preferred, regenerated protein fibers such as regenerated collagen fibers made from collagen, and regenerated silk fibers made from silk fibroin are even more preferred, and regenerated collagen fibers are even more preferred. Regenerated collagen fibers can be manufactured using known technologies. The composition of regenerated collagen fibers does not need to be 100% collagen; natural polymers, synthetic polymers, additives, etc., may be included for quality improvement. Furthermore, regenerated collagen fibers may be post-processed or post-treated. Filaments are preferred as the form of regenerated collagen fibers. Filaments are generally removed from bobbins or boxes. Alternatively, filaments that have emerged from the drying process during the manufacturing of regenerated collagen fibers can be used directly.

[0075] Examples of synthetic fibers include fibers containing synthetic resin as the main component. From the viewpoint of ease of manufacturing the synthetic fiber and obtaining a texture similar to hair, the synthetic resin is preferably a thermoplastic resin, and more preferably one or more selected from the group consisting of polyester resin, polyamide resin, polyimide resin, polyamide-imide resin, vinyl chloride resin, polycarbonate resin, polyphenylene sulfide resin, and modacrylic resin (a copolymer of acrylonitrile and vinyl chloride). Here, "main component" means a component whose content in the synthetic fiber is preferably 50% by mass or more, more preferably 60% by mass or more, even more preferably 70% by mass or more, even more preferably 80% by mass or more, and even more preferably 90% by mass or more, and 100% by mass or less. In addition to the synthetic resin described above, the synthetic fiber may further contain various components such as flame retardants, flame retardant enhancers, light or heat stabilizers, fluorescent agents, antioxidants, antistatic agents, and ultraviolet absorbers, to the extent that they do not impair the effects of the present invention. [Examples]

[0076] The present invention will be specifically described below with reference to examples, but the present invention is not limited in any way by these examples. In the following examples and comparative examples, "parts" and "%" refer to "parts by mass" and "% by mass" unless otherwise specified. The various measurements and evaluations in this embodiment were performed using the following methods.

[0077] <Preparation of hair bundles for evaluation> Using Japanese hair with no prior chemical treatment history and minimal curly hair, untreated hair bundles measuring 30 cm in length, 7 cm in width, and 20 g in mass were prepared. These hair bundles were bleached twice with a powder bleaching agent using the method described below, and then repeatedly washed to prepare evaluation hair bundles. (1) Preparation of powder bleach A powder bleach was prepared by using Ordeve Addicthy High Bleach (manufactured by Milbon Co., Ltd.) as the first agent (powder) and Ordeve Addicthy Oxidant 6.0% (manufactured by Milbon Co., Ltd.) as the second agent, and mixing the first and second agents in a mass ratio of 1:2. (2) Treatment with powder bleach and repeated washing To the aforementioned untreated hair strands, powder bleach was applied in a ratio of hair strand to powder bleach of 1:3, and left for 30 minutes at 25°C and 45% relative humidity. After 30 minutes, the hair strands were wet with 40°C tap water for 30 seconds, 1g of plain shampoo with the composition below was applied, lathered for 30 seconds, and rinsed with 40°C tap water for 30 seconds. Next, 2g of plain conditioner with the composition below was applied to the hair strands, rinsed with 40°C tap water for 30 seconds, and excess water was removed with a towel. Furthermore, the hair was dried for 5 minutes with a hair dryer (Panasonic Corporation, EH NE23, turbo mode, hair surface temperature 60°C) while lightly running fingers through it. The above treatment was repeated twice. Subsequently, as part of the repeated hair washing process, strands of hair were wet with 40°C tap water for 30 seconds, 1g of the plain shampoo was applied and lathered for 30 seconds, and then rinsed with 40°C tap water for 30 seconds. Next, 2g of the plain conditioner was applied and rinsed with 40°C tap water for 30 seconds, excess water was removed with a towel, and the hair was dried with a hair dryer (Panasonic Corporation, EH NE23, turbo mode, hair surface temperature 60°C) for 5 minutes, while lightly running fingers through the hair. This process was repeated 30 times.

[0078] Here, the dynamic receding contact angle of the hair after the above treatment was measured and observed using a laser microscope. For measuring the dynamic receding contact angle of the hair, a KRUSS K100 high-performance automatic surface tensile meter and the Contact Angle software module Laboratory Desktop were used. Specifically, the treated hair was cut 3 cm from the tip, and the 3 cm section was attached to the jig of the high-performance automatic surface tensile meter so that the root end was facing the pure water surface under laboratory conditions (25°C, 60% RH). This was moved downward at a speed of 2 mm / min to immerse it in pure water, and after the tip was immersed for approximately 2 mm, the dynamic receding contact angle was calculated using the Wilhelmy method when it was pulled upward at a speed of 2 mm / min. The measured dynamic receding contact angle of the hair was 0° (N=average of 3 strands). Furthermore, the treated hair was cut 5 cm from the tip, and the cut hair was straightened and fixed to a glass slide with cellophane tape at both ends under laboratory conditions (25°C, 60% RH). When this hair was photographed with a laser microscope (KEYENCE, VK8710) (magnification 100x, zoom x1.0), it was confirmed that a portion of the cuticle had peeled off and the cortex was exposed (Figure 1).

[0079] The hair that had undergone the repeated washing treatment described above was again wet with 40°C tap water for 30 seconds, 1g of the plain shampoo was applied and lathered for 30 seconds, and then rinsed with 40°C tap water for 30 seconds. Next, 2g of the plain conditioner was applied and rinsed with 40°C tap water for 30 seconds, excess water was removed with a towel, and the hair was used as a hair bundle for evaluating the wet state.

[0080] [Plain Shampoo Composition] *The amounts listed are for the active ingredients. (mass%) Sodium polyoxyethylene (2.0) lauryl ether sulfate (*1) 47.2 Lauric acid diethanolamide (*2) 2.5 Sodium benzoate 1.1 Sodium chloride 1.2 Ion-exchanged water 86.6 Total: 100.0 (*1) 47.2% by mass of Kao Corporation's "Emal 227" (active ingredient content 27% by mass) (*2) Aminone C-11S (manufactured by Kao Corporation), active ingredient content 100% by mass

[0081] [Composition of Plain Conditioner] *The amounts listed are for the active ingredients. (mass%) Cetyltrimethylammonium chloride (*1) 5.0 Cetyl alcohol (*2) 5.0 Lactic acid 2.0 Water balance Total 100.0 (*1) Kao Corporation's "Cotamin 60W" (*2) "Calcol 6098" manufactured by Kao Corporation

[0082] <How well it blends into damp, damaged hair when applied> Each example of the hair cosmetic composition (hair oil) was filled into a trigger spray container equipped with a trigger-type spray (PT-200, manufactured by Yoshino Kogyosho Co., Ltd.) and a bottle (B-6576, manufactured by Yoshino Kogyosho Co., Ltd.). 0.2 g of the hair oil was sprayed onto the aforementioned wet hair bundles for evaluation, and the ease with which the oil blended into the hair after 20 comb-strokes was evaluated by five expert panelists who agreed to evaluate the following criteria. The average of the scores from the five panelists was calculated and is shown in the table. In the following criteria, the ease with which Example 1 blended into wet, damaged hair was rated 3, which is better than conventional products. Most of the other examples performed even better, and a higher number indicates superior ease with which the oil blended into wet, damaged hair. (Evaluation Criteria) Rating 5: Much better than Example 1 4: Slightly better than in Example 1. 3: The ease of integration is about the same as in Example 1. 2: Slightly less compatible than in Example 1. 1: Much less compatible than Example 1

[0083] <No stickiness on hands after application> Each example of the hair cosmetic composition (hair oil) was filled into a trigger spray container equipped with a trigger-type spray (PT-200, manufactured by Yoshino Kogyosho Co., Ltd.) and a bottle (B-6576, manufactured by Yoshino Kogyosho Co., Ltd.). 0.2 g of the hair oil was sprayed onto the aforementioned wet hair bundle for evaluation, and the hair was spread evenly over the entire bundle by running a comb through it 20 times. After performing the above operations, five expert panelists agreed to evaluate the lack of stickiness on the hands according to the following criteria, and then conducted a sensory evaluation. The average of the scores from the five panelists was calculated and is shown in the table. In the following criteria, the lack of stickiness on the hands after application in Example 1 was rated 3, which is better than conventional products, and most of the other examples performed even better. A higher number indicates better performance in terms of the lack of stickiness on the hands after application. (Evaluation Criteria) Rating 5: The stickiness on the hands is significantly less than in Example 1. 4: Less stickiness on the hands compared to Example 1. 3: The level of stickiness on the hands is about the same as in Example 1. 2: The hands feel slightly stickier than in Example 1. 1: The stickiness on the hands is much stronger than in Example 1.

[0084] <How easily damaged hair becomes tangled after application> Each example of the hair cosmetic composition (hair oil) was filled into a trigger spray container equipped with a trigger-type spray (PT-200, manufactured by Yoshino Kogyosho Co., Ltd.) and a bottle (B-6576, manufactured by Yoshino Kogyosho Co., Ltd.). 0.2 g of the hair oil was sprayed onto the aforementioned wet hair bundle for evaluation, and the hair was spread evenly over the entire bundle by running a finger through it 20 times. Next, a resin comb (42 teeth, 1 mm spacing between teeth, 17 mm tooth length) was passed through the hair bundle from root to tip, and five expert panelists agreed to evaluate the ease with which the hair could be untangled according to the following criteria, and then performed a sensory evaluation. The average of the scores from the five panelists was calculated and is shown in the table. In the following criteria, the ease with which damaged hair could be untangled after application in Example 1 was rated 3, which is better than conventional products, and most of the other examples performed even better. A higher number indicates superior ease with which damaged hair could be untangled after application. (Evaluation Criteria) Rating 5: The tangles are much easier to untangle than in Example 1. 4: Tangles are slightly easier to untangle than in Example 1. 3: The ease with which tangles can be untangled is about the same as in Example 1. 2: The tangles are slightly more difficult to untangle than in Example 1. 1: The tangles are much more difficult to untangle than in Example 1.

[0085] <How well damaged hair stays manageable after drying> Each example of a hair cosmetic composition (hair oil) was filled into a trigger spray container equipped with a trigger-type spray (PT-200, manufactured by Yoshino Kogyosho Co., Ltd.) and a bottle (B-6576, manufactured by Yoshino Kogyosho Co., Ltd.). 0.2 g of the hair oil was sprayed onto the wet hair bundles used for evaluation, and the oil was spread evenly over the entire bundle by running fingers through it 20 times. Next, the bundles were dried for 5 minutes using a hair dryer (Panasonic Corporation, EH NE23, turbo mode, hair surface temperature 60°C) while lightly running fingers through them. Five expert panelists agreed to evaluate the manageability of the hair after drying according to the following criteria, and then conducted a sensory evaluation. The average of the scores from the five panelists was calculated and is shown in the table. In the criteria below, the manageability of damaged hair after drying in Example 1 was rated 3, which is better than conventional products. Most of the other examples performed even better, and a higher number indicates superior manageability of damaged hair after drying. (Evaluation Criteria) Rating 5: Hair manageability is significantly better than in Example 1. 4: The hair is slightly more manageable than in Example 1. 3: The manageability of the hair is comparable to that of Example 1. 2: The hair is slightly less manageable than in Example 1. 1: Hair manageability is significantly worse than in Example 1.

[0086] <Uniformity of appearance of the composition> Each example of a hair cosmetic composition (hair oil) was prepared, placed in a screw-cap tube (No. 7, manufactured by Maruemu Co., Ltd.) at 10g, and left to stand at 25°C for 24 hours. Five expert panelists agreed to evaluate the appearance of each sample according to the following criteria. The average of the scores from the five panelists was calculated and is shown in the table. (Evaluation Criteria) Rating 2: The appearance is uniform. 1: Separation is observed.

[0087] <Stability of the composition when 1% by mass of moisture is added> Ten g of each example of hair cosmetic composition (hair oil) was placed in a screw-cap tube (No. 7, manufactured by Maruemu Co., Ltd.), 0.1 g of purified water was added, and the mixture was stirred for 5 minutes using a stirrer. After standing at 25°C for 24 hours, the appearance of the compositions was evaluated by five expert panelists according to the following criteria. The average of the scores from the five panelists was calculated and is shown in the table. (Evaluation Criteria) Rating 2: No change in appearance before and after adding purified water. 1: Separation is observed after the addition of purified water.

[0088] Examples 1-21, Comparative Examples 1-3 (Preparation of hair cosmetic composition (hair oil)) Each component listed in the table was weighed into a 100 mL beaker containing a stirring bar, and the mixture was stirred and mixed until uniform to obtain the hair cosmetic composition (hair oil) described in the table. The obtained hair oil was evaluated using the method described above. The results are shown in Tables 1 to 4.

[0089] [Table 1]

[0090] [Table 2]

[0091] [Table 3]

[0092] [Table 4]

[0093] The ingredients listed in the table are as follows. The amounts (mass %) listed in the table represent the amount of the active ingredient for each component. *1: Cetiol ININ (manufactured by BASF Japan Ltd.) *2: M Fine Oil ISG-20T (manufactured by Miyoshi Oil & Fat Co., Ltd., HLB=10.9) *3: Cosmoll 41V (manufactured by Nisshin Oillio Group, Ltd., HLB=8) *4: ICEH (manufactured by Higher Alcohol Industry Co., Ltd.) *5: Diisopropyl adipate (manufactured by Fujifilm Wako Pure Chemical Corporation) *6: Exepal TGO (manufactured by Kao Corporation) *7: Softanol 90 (manufactured by Nippon Shokubai Co., Ltd., HLB=13.3) *8: Emulgen 306P (manufactured by Kao Corporation, HLB=9.4) *9: N-propionylethyleneimine-methylpolysiloxane copolymer (N-propionylethyleneimine-dimethylsiloxane copolymer produced by the method described in Synthesis Example 12 of Japanese Patent No. 5743902) *10: Sofcare GS-G (manufactured by Kao Corporation, bis(polyglyceryl-3 oxyphenylpropyl) dimethicone: 99.7% by mass) *11: DOWSIL SH 3775 M (manufactured by Dow Toray Industries, Inc.) *12: Marcazole R (manufactured by Maruzen Petrochemical Co., Ltd.)

[0094] Tables 1-4 show that the hair cosmetic composition (hair oil) of this embodiment exhibits good compatibility with damp hair (damaged hair) that has been excessively damaged by powder bleaching, no stickiness on the hands after application, ease of detangling of hair, and good manageability of hair after drying, as well as excellent uniformity of appearance. Furthermore, it does not separate even when moisture is mixed into the composition, demonstrating excellent stability. In contrast, the hair oils of Comparative Example 1, which contained less than 4% by mass of component (A), and Comparative Example 2, which used a nonionic surfactant with an HLB of less than 9 instead of component (B), both showed reduced treatment effectiveness on damaged hair in a wet state. The hair oil of Comparative Example 3, which contained more than 15% by mass of water, separated and therefore could not be evaluated.

[0095] Formula Example 1 (Leave-on type hair oil mist) A hair cosmetic composition with the following composition was filled into the trigger spray container to obtain a leave-on type hair oil mist. The amount used is the amount of active ingredient. (mass%) (A) Isopropyl myristate (*1): 20.0 (B) PEG-20 glyceryl triisostearate (*2): 4.0 (C) Ethanol: Remainder (D) Polysilicone-9 (*3): 3.0 (Other) Olive fruit oil (*4): 0.1 Total:100.0 *1: Excepal IPM (manufactured by Kao Corporation) *2: M Fine Oil ISG-20T (manufactured by Miyoshi Oil & Fat Co., Ltd., HLB=10.9) *3: N-propionyl polyethyleneimine / methylpolysiloxane copolymer (manufactured by Kao Corporation) *4: Clopure OL-LQ-(JP) (manufactured by Croda Japan Co., Ltd.)

[0096] Formula Example 2 (Leave-on type hair oil mist) A hair cosmetic composition with the following composition was filled into the trigger spray container to obtain a leave-on type hair oil mist. The amount used is the amount of active ingredient. (mass%) (A) Isotridecyl isononanoate (*1): 20.0 (B) Sorbeth Tetraoleate 30 (*2): 4.0 (C) Ethanol: Remainder (D) Bis(cetearyl)amodimethicone (*3): 3.0 (Other) Bismethoxypropylamide isodocosane (*4): 0.01 (Other) Benzyl alcohol: 0.01 (Other) Malic acid (50% solution): 0.01 (Other) Succinic acid: 0.01 (Other) 90% Lactic Acid: 0.01 Total:100.0 *1: Saracos 913 (manufactured by Nisshin Oillio Group Ltd.) *2: Leodor 430V (manufactured by Kao Corporation, HLB=10.5) *3: SILICONE XF42-C4570 (manufactured by Momentive Performance Materials) *4: BRS661 (manufactured by Kao Corporation)

[0097] Formula Example 3 (Leave-on type hair oil mist) A hair cosmetic composition with the following composition was filled into the trigger spray container to obtain a leave-on type hair oil mist. The amount used is the amount of active ingredient. (mass%) (A) Neopentyl glycol diethylhexanoate (*1): 20.0 (B) Seteth-6(*2): 4.0 (C) Ethanol: Remainder (D) Polysilicone-9 (*3): 3.0 (Other) Isostearyl glyceryl ether (*4): 0.01 (Other) Lanolin fatty acids: 0.01 Total:100.0 *1: Cosmoll 525 (manufactured by Nisshin Oillio Group Ltd.) *2: NIKKOL BC-5.5 (manufactured by Nikko Chemicals Co., Ltd., HLB=10.5) *3: N-propionyl polyethyleneimine / methylpolysiloxane copolymer (manufactured by Kao Corporation) *4: Penetol GE-IS (manufactured by Kao Corporation) *5: Crodacid 18-MEA (manufactured by Croda Japan Co., Ltd.)

[0098] Formula Example 4 (Leave-on type hair oil mist) A hair cosmetic composition with the following composition was filled into the trigger spray container to obtain a leave-on type hair oil mist. The amount used is the amount of active ingredient. (mass%) (A) Isononyl isononanoate (*1): 20.0 (B) PEG-8 glyceryl isostearate (*2): 4.0 (C) Ethanol: Remainder (D) Polysilicone-9 (*3): 3.0 (Other) Dimethicone (*4): 1.0 (Other) Ethylhexyl methoxycinnamate (*5): 0.01 (Other) Argan oil: 0.01 Total:100.0 *1: Saracos 99 (manufactured by Nisshin Oillio Group Ltd.) *2: M Fine Oil ISG-8M (manufactured by Miyoshi Oil & Fat Co., Ltd., HLB=12.5) *3: N-propionyl polyethyleneimine / methylpolysiloxane copolymer (manufactured by Kao Corporation) *4: Silicone KF-96-5CS (manufactured by Shin-Etsu Chemical Co., Ltd.) *5: Ubinal MC 80 (manufactured by BASF Japan Ltd.)

[0099] Formula Example 5 (Leave-on type hair oil mist) A hair cosmetic composition with the following composition was filled into the trigger spray container to obtain a leave-on type hair oil mist. The amount used is the amount of active ingredient. (mass%) (A) Diethyl sebacate (*1): 20.0 (B) PEG-20 glyceryl triisostearate (*2): 4.0 (C) Ethanol: Remainder (D) Polysilicone-9 (*3): 3.0 (Other) Honey (*4): 0.01 Total:100.0 *1: Kurodamol SE (manufactured by Croda Japan Co., Ltd.) *2: M Fine Oil ISG-20T (manufactured by Miyoshi Oil & Fat Co., Ltd., HLB=10.9) *3: N-propionyl polyethyleneimine / methylpolysiloxane copolymer (manufactured by Kao Corporation) *4: Refined honey (manufactured by Api Co., Ltd.) [Industrial applicability]

[0100] According to the present invention, a hair cosmetic composition can be provided that offers good compatibility with excessively damaged, wet hair, no stickiness on the hands after application, ease of detangling hair, and good manageability of hair after drying, as well as excellent uniformity of appearance.

Claims

1. A hair cosmetic composition, The aforementioned composition comprises the following components (A) to (C): (A) Ester oil with 10 to 29 carbon atoms that is liquid at 20°C (B) Non-silicone nonionic surfactant with an HLB value of 9 to 20 (C) Monohydric alcohol with 2 to 4 carbon atoms It contains, The content of component (A) in the composition is 4% by mass or more. A hair cosmetic composition having a water content of 15% by mass or less.

2. The hair cosmetic composition according to claim 1, wherein the mass ratio of component (A) to component (B) in the composition [(A) / (B)] is 2 or more and 25 or less.

3. The hair cosmetic composition according to claim 1, wherein the content of component (B) in the composition is 0.1% by mass or more and 20% by mass or less.

4. The hair cosmetic composition according to claim 1, further comprising a modified silicone into which a hydrophilic group has been introduced as component (D).

5. The hair cosmetic composition according to claim 4, wherein the mass ratio of component (A) to component (D) [(A) / (D)] is 2 or more and 50 or less.

6. The hair cosmetic composition according to claim 1, wherein component (A) comprises one or more selected from the group consisting of isodecyl neopentanoate, cetyl ethylhexanoate, stearyl ethylhexanoate, isononyl isononanoate, isotridecyl isononanoate, hexyldecyl ethylhexanoate, hexyl laurate, isostearyl laurate, butyl myristate, isopropyl myristate, decyl myristate, isotridecyl myristate, isopropyl palmitate, ethylhexyl palmitate, ethylhexyl stearate, isopropyl isostearate, caprylic / capric triglyceride, triethylhexanoin, diisopropyl adipate, and diisobutyl adipate.

7. The hair cosmetic composition according to claim 1, wherein component (B) comprises one or more selected from the group consisting of polyoxyalkylene alkyl ether, polyoxyalkylene fatty acid ester, polyoxyalkylene glycerin fatty acid ester, polyoxyalkylene sorbitan fatty acid ester, polyoxyalkylene sorbitan fatty acid ester, and polyoxyalkylene hydrogenated castor oil.

8. The hair cosmetic composition according to claim 1, wherein the content of volatile oil in the composition is 30% by mass or less.

9. The hair cosmetic composition according to claim 1, wherein the content of component (C) in the composition is 11% by mass or more and less than 96% by mass.

10. A hair treatment method, The method described above comprises the following steps (I) and (II) in order, and does not include a step of rinsing the hair between step (I) and step (II), and is a hair treatment method. Step (I): A step of applying the hair cosmetic composition according to any one of claims 1 to 9 to wet hair. Step (II): Step of drying the hair to which the hair cosmetic composition has been applied.

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