Hair composition

Abstract

To provide a hair composition that suppresses the hardening of hair. [Solution] The hair composition contains components (A) to (C). Component (A) is at least one selected from the group consisting of alkyl glucosides and polyglycerin fatty acid esters. Component (B) is a nonionic surfactant different from component (A) with an HLB value of 14.0 or less. Component (C) is at least one selected from the group consisting of oily components and alcohols with 6 or more carbon atoms.

Description

[Technical Field]

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

[0002] One of the main purposes of hair treatments is to condition the hair, making it smoother, more manageable, and softer. Generally, hair treatments contain oily ingredients such as fats, ester oils, and silicone oils. These oily ingredients adhere to the hair, and that's how hair treatments provide a conditioning effect.

[0003] Areas with significant damage, such as the ends of the hair, are more prone to becoming hydrophilic because the cuticle peels off and lipids leak out from inside the hair. Therefore, even though these areas with significant damage require special conditioning, oily components are less likely to adhere to them.

[0004] Patent Document 1 discloses a hair treatment comprising an anionic polymer in the first agent and a cationic substance in the second agent. According to the hair treatment of Patent Document 1, the first and second agents are applied to the hair in that order, and the anionic polymer and cationic substance react on the hair to form a water-insoluble complex salt, thereby obtaining a conditioning effect.

[0005] Patent Document 2 discloses a hair treatment containing a cationic polymer. According to the hair treatment of Patent Document 2, a conditioning effect is obtained by promoting the adhesion of oily components to the hair. [Prior art documents] [Patent Documents]

[0006] [Patent Document 1] Japanese Patent Application Publication No. 10-087441 [Patent Document 2] Special Publication No. 2012-524038

Summary of the Invention

Problems to be Solved by the Invention

[0007] According to the hair treatments of Patent Document 1 and Patent Document 2, conditioning components such as complex salts and oily components adhere to the sites where the hair damage is large, thereby obtaining a conditioning effect. However, in the hair treatments of Patent Document 1 and Patent Document 2, the conditioning components may adhere excessively to the sites where the damage is large. Then, the sites where the damage is large tend to become hard.

[0008] The present invention has been made in view of the above problems, and an object thereof is to provide a hair composition that suppresses the hair from becoming hard.

Means for Solving the Problems

[0009] The hair composition according to an embodiment of the present invention contains the following components (A) to (C). (A) At least one selected from the group consisting of alkyl glucoside and polyglycerol fatty acid ester (B) A nonionic surfactant having an HLB value of 14.0 or less, which does not correspond to the component (A) (C) At least one selected from the group consisting of an oily component and alcohols having 6 or more carbon atoms

[0010] The component (A) may be alkyl glucoside.

[0011] The alkyl glucoside may be at least one selected from the group consisting of decyl glucoside and lauryl glucoside.

[0012] The component (B) may be at least one selected from the group consisting of polypropylene glycol ether, polyoxyethylene polyhydric alcohol fatty acid ester, and glycerin fatty acid ester.

[0013] The blending amount of the component (A) in the hair composition may be 2.5% by mass or less.

[0014] As the component (D), at least one selected from the group consisting of an anionic surfactant and a cationic surfactant may be further contained.

Effects of the Invention

[0015] According to the present invention, a hair composition that suppresses the hardening of hair can be provided.

Modes for Carrying Out the Invention

[0016] Hereinafter, embodiments of the present invention will be described. However, the following description does not limit the present invention to specific forms.

[0017] In this specification, when there is an expression of "weight", it may be read as "mass", which is a SI unit commonly used to indicate weight. Vice versa.

[0018] The hair composition according to the present embodiment contains the following components (A) to (C). (A) At least one selected from the group consisting of an alkyl glucoside and a polyglycerol fatty acid ester (B) A nonionic surfactant having an HLB value of 14.0 or less that does not correspond to the component (A) (C) At least one selected from the group consisting of an oily component and alcohols having 6 or more carbon atoms

[0019] [Component (A)] Component (A) is at least one selected from the group consisting of an alkyl glucoside and a polyglycerol fatty acid ester. In the hair composition according to the present embodiment, component (A) is considered to cooperate with components (B) and (C) to suppress the adhesion of excessive component (C) to the hair. Thereby, it is considered that component (A) contributes to suppressing the hardening of the hair (particularly, the part where damage is large such as the hair tip (hereinafter referred to as the "damaged part")) due to the adhesion of excessive component (C).

[0020] The amount of component (A) in the hair composition is, for example, 8.0% by mass or less, and may be 7.5% by mass or less, 7.0% by mass or less, 6.5% by mass or less, 6.0% by mass or less, 5.5% by mass or less, 5.0% by mass or less, 4.5% by mass or less, 4.0% by mass or less, 3.5% by mass or less, 3.0% by mass or less, and even 2.5% by mass or less. The amount of component (A) in the hair composition is, for example, 0.1% by weight or more, and may be 0.2% by weight or more, 0.3% by weight or more, 0.4% by weight or more, 0.5% by weight or more, 0.6% by weight or more, 0.7% by weight or more, 0.8% by weight or more, 0.9% by weight or more, 1.0% by weight or more, 1.1% by weight or more, 1.2% by weight or more, 1.3% by weight or more, 1.4% by weight or more, and even 1.5% by weight or more.

[0021] The ratio (by weight) of the amount of component (B) to the amount of component (A) in the hair composition (B / A) is, for example, 0.1 or more, and may be 0.2 or more, 0.3 or more, or even 0.4 or more. The above ratio (B / A) is, for example, 5.0 or less, and may be 4.0 or less, 3.0 or less, 2.0 or less, 1.5 or less, 1.0 or less, 0.8 or less, or even 0.6 or less.

[0022] Alkyl glucosides are compounds in which a higher alcohol and a sugar are linked by a glucosidic bond. The number of carbon atoms in the alkyl group of an alkyl glucoside is not limited to a specific value; it may be between 6 and 30, between 8 and 20, or between 8 and 18. The alkyl group may be linear or branched.

[0023] Examples of alkyl glucosides include decyl glucoside, lauryl glucoside, myristyl glucoside, cetostearyl glucoside, octyl glucoside, nonyl glucoside, (caprylyl / capryl) glucoside, and coconut oil alkyl glucosides.

[0024] Polyglycerol fatty acid esters are formed by esterifying the hydroxyl groups of polyglycerol with fatty acids. The average degree of polymerization of the polyglycerol constituting the polyglycerol fatty acid ester is, for example, 3 to 20, preferably 3 to 10. The fatty acids used as raw materials for polyglycerol fatty acid esters may have 8 to 20 carbon atoms, or 8 to 18 carbon atoms. The fatty acids may be saturated fatty acids or unsaturated fatty acids. Furthermore, the fatty acids may be straight-chain fatty acids or branched-chain fatty acids. Specific examples of fatty acids include caprylic acid, capric acid, lauric acid, myristic acid, palmitic acid, stearic acid, isostearic acid, arachidic acid, palmitoleic acid, oleic acid, elaidic acid, linoleic acid, linolenic acid, coconut oil fatty acid, palm oil fatty acid, palm kernel oil fatty acid, soybean oil fatty acid, sunflower oil fatty acid, grape seed oil fatty acid, and apricot kernel oil fatty acid.

[0025] The polyglycerol fatty acid ester may be a monoester, a diester, or a triester.

[0026] Examples of polyglycerin fatty acid esters include polyglyceryl-2 stearate, polyglyceryl-2 oleate, polyglyceryl-2 dioleate, polyglyceryl-2 isostearate, polyglyceryl-2 diisostearate, polyglyceryl-2 triisostearate, polyglyceryl-4 stearate, polyglyceryl-4 oleate, polyglyceryl-4 tristearate, polyglyceryl-4 pentaoleate, polyglyceryl-6 laurate, polyglyceryl-6 myristate, polyglyceryl-6 stearate, polyglyceryl-6 oleate, polyglyceryl-6 tristearate, polyglyceryl-6 tetrabehenate, polyglyceryl-6 pentastearate, polyglyceryl-6 pentaoleate, polyglyceryl-6 polyricinoleate, polyglyceryl-10 laurate, and polyglyceryl-10 myristate. These are polyglyceryl-10 stearate, polyglyceryl-10 isostearate, polyglyceryl-10 oleate, polyglyceryl-10 linoleate, polyglyceryl-10 distearate, polyglyceryl-10 diisostearate, polyglyceryl-10 tristearate, polyglyceryl-10 trioleate, polyglyceryl-10 pentastearate, polyglyceryl-10 pentahydroxystearate, polyglyceryl-10 pentaisostearate, polyglyceryl-10 pentaoleate, polyglyceryl-10 heptastearate, polyglyceryl-10 heptaolate, polyglyceryl-10 decastearate, polyglyceryl-10 decaisostearate, polyglyceryl-10 decaoleate, polyglyceryl-10 decamademia nut fatty acid, and polyglyceryl-10 polyricinoleate.

[0027] Component (A) is not limited to the above example.

[0028] The hair composition according to this embodiment may contain one or more components (A).

[0029] The HLB value of component (A) is not particularly limited. For example, the HLB value of component (A) may be less than or equal to 14.0. Examples of component (A) with an HLB value of less than or equal to 14.0 include decyl glucoside (HLB value: 8.2), lauryl glucoside (HLB value: 7.3), and polyglyceryl-10 oleate (HLB value: 13.4). The HLB value of component (A) may be less than or equal to 13.5, less than or equal to 13.0, less than or equal to 12.5, less than or equal to 12.0, less than or equal to 11.5, less than or equal to 11.0, less than or equal to 10.5, less than or equal to 10.0, less than or equal to 9.5, less than or equal to 9.0, less than or equal to 8.5, and even less than or equal to 8.0. The HLB value of component (A) may be, for example, greater than 0, greater than or equal to 0.5, greater than or equal to 1.0, greater than or equal to 1.5, greater than or equal to 2.0, greater than or equal to 2.5, greater than or equal to 3.0, greater than or equal to 3.5, greater than or equal to 4.0, greater than or equal to 4.5, greater than or equal to 5.0, greater than or equal to 5.5, greater than or equal to 6.0, greater than or equal to 6.5, and even greater than or equal to 7.0.

[0030] HLB values ​​can be calculated using, for example, the following formula (Kawakami method). HLB value = 7 + 11.7log(sum of molecular weights of hydrophilic parts / sum of molecular weights of lipophilic parts)

[0031] Component (A) is preferably an alkyl glucoside. The alkyl glucoside is preferably at least one selected from the group consisting of decyl glucoside and lauryl glucoside.

[0032] [Component (B)] Component (B) is a nonionic surfactant with an HLB value of 14.0 or less, which is not a component of component (A). Note that "not a component of component (A)" means "not selected from substances belonging to alkyl glucoside or polyglycerin fatty acid ester, which are components (A)." In the hair composition according to this embodiment, component (B) is thought to work in cooperation with components (A) and (C) to hydrophobize the hair (especially the damaged parts), thereby contributing to the adhesion of component (C) to the hair (especially the damaged parts). When the HLB value exceeds 14.0, the hydrophilicity of component (B) increases, making it difficult for component (B) to adhere to the hair, and also making it difficult for component (C) to adhere to the hair.

[0033] The amount of component (B) in the hair composition is, for example, 5.0% by mass or less, and may be 4.5% by mass or less, 4.0% by mass or less, 3.5% by mass or less, 3.0% by mass or less, 2.5% by mass or less, 2.0% by mass or less, 1.5% by mass or less, 1.4% by mass or less, 1.3% by mass or less, and even 1.2% by mass or less. The amount of component (B) in the hair composition is, for example, 0.1% by weight or more, and may be 0.2% by weight or more, 0.3% by weight or more, 0.4% by weight or more, 0.5% by weight or more, 0.6% by weight or more, 0.7% by weight or more, and even 0.8% by weight or more.

[0034] Examples of nonionic surfactants with an HLB value of 14.0 or less include glycerin fatty acid esters such as glyceryl caprylate (HLB value: 7.3), glyceryl laurate (HLB value: 5.2), glyceryl myristate (HLB value: 4.4), glyceryl palmitate (HLB value: 3.8), glyceryl stearate (HLB value: 3.2), glyceryl isostearate (HLB value: 3.2), glyceryl behenate (HLB value: 2.2), and glyceryl oleate (HLB value: 3.2); and polyoxyglyceryl cocoate (HLB value: 11.0). These include ethylene polyhydric alcohol fatty acid esters; polypropylene glycol ethers such as PPG-15 stearyl (HLB value: 13.4); polyoxyethylene hydrogenated castor oil such as PEG-5 hydrogenated castor oil (HLB value: 6.1), PEG-10 hydrogenated castor oil (HLB value: 9.5), and PEG-20 hydrogenated castor oil (HLB value: 12.9); polyoxyethylene polyoxypropylene alkyl ethers such as PPG-2-deceth-7 (HLB value: 12.8); and polyoxypropylene caprylyl ethers such as PPG-3 caprylyl ether (HLB value: 9.7).

[0035] The polypropylene glycol ether is preferably PPG-n1 stearyl (n1 ≤ 15). The polyoxyethylene hydrogenated castor oil is preferably PEG-n2 hydrogenated castor oil (n2 ≤ 20). The polyoxyethylene polyoxypropylene alkyl ether is preferably PPG-n3-deceth-n4 (n3 ≤ 2, n4 ≤ 7). The polyoxypropylene caprylyl ether is preferably PPG-n5 caprylyl ether (n5 ≤ 3).

[0036] The HLB value of a nonionic surfactant may be, for example, less than or equal to 13.0, less than or equal to 12.5, less than or equal to 12.0, less than or equal to 11.5, less than or equal to 11.0, less than or equal to 10.5, less than or equal to 10.0, less than or equal to 9.5, less than or equal to 9.0, less than or equal to 8.5, and even less than or equal to 8.0. The HLB value of a nonionic surfactant may be, for example, greater than 0, greater than or equal to 0.5, greater than or equal to 1.0, greater than or equal to 1.5, greater than or equal to 2.0, greater than or equal to 2.5, greater than or equal to 3.0, greater than or equal to 3.5, greater than or equal to 4.0, greater than or equal to 4.5, greater than or equal to 5.0, greater than or equal to 5.5, greater than or equal to 6.0, greater than or equal to 6.5, and even greater than or equal to 7.0.

[0037] Component (B) is preferably at least one selected from the group consisting of polypropylene glycol ether, polyoxyethylene polyhydric alcohol fatty acid ester, and glycerin fatty acid ester.

[0038] Component (B) is not limited to the above example.

[0039] The hair composition according to this embodiment may contain one or more components (B).

[0040] [Component (C)] Component (C) is at least one selected from the group consisting of oily components and alcohols with 6 or more carbon atoms. Component (C) is an active ingredient for hair care. In the hair composition according to this embodiment, component (C) is thought to work in cooperation with components (A) and (B) to contribute to a conditioning effect on the hair (especially damaged areas) (particularly smoothness of the hair).

[0041] The amount of component (C) in the hair composition is, for example, 0.01% by weight or more, and may be 0.1% by weight or more, 0.2% by weight or more, 0.3% by weight or more, 0.4% by weight or more, 0.5% by weight or more, 0.6% by weight or more, 0.7% by weight or more, 0.8% by weight or more, 0.9% by weight or more, 1.0% by weight or more, 1.1% by weight or more, 1.2% by weight or more, 1.3% by weight or more, 1.4% by weight or more, 1.5% by weight or more, 1.6% by weight or more, 1.7% by weight or more, and even 1.8% by weight or more. The amount of component (C) in the hair composition may be, for example, 15% by weight or less, and may also be 14% by weight or less, 13% by weight or less, 12% by weight or less, 11% by weight or less, 10% by weight or less, 9% by weight or less, 8% by weight or less, 7% by weight or less, 6% by weight or less, 5% by weight or less, 4% by weight or less, 3% by weight or less, 2% by weight or less, or even 1% by weight or less.

[0042] Component (C) is not particularly limited as long as it is applicable as an ingredient in a hair composition. Component (C) is preferably a liquid oil. The liquid oil is, for example, one that is fluid at 25°C. Since the liquid oil can contribute to emulsification stability, it facilitates formulation.

[0043] Examples of oily components (C) include vegetable oils, ester oils, hydrocarbon oils, and silicone oils.

[0044] Examples of vegetable oils include coconut oil, palm oil, palm kernel oil, safflower oil, olive oil, castor oil, avocado oil, sesame oil, tea oil, evening primrose oil, wheat germ oil, macadamia seed oil, hazelnut oil, almond oil, grape seed oil, kukui nut oil, rosehip oil, meadowfoam oil, peach kernel oil, tea tree oil, peppermint oil, corn oil, rapeseed oil, sunflower oil, wheat germ oil, linseed oil, cottonseed oil, soybean oil, peanut oil, rice bran oil, cocoa butter, and jojoba oil.

[0045] Examples of animal oils include whale wax, lanolin, and orange roughy oil.

[0046] Examples of ester oils include isononyl isononanoate, isodecyl isononanoate, isotridecyl isononanoate, isostearyl myristate, isopropyl myristate, cetyl 2-ethylhexanoate, octyldodecyl myristate, isopropyl palmitate, 2-ethylhexyl palmitate, butyl stearate, hexyl laurate, myristyl myristate, decyl oleate, cetyl octanoate, octyldodecyl oleate, hexyldecyl dimethyloctanoate, cetyl lactate, myristyl lactate, octyldodecyl lactate, tetradecyl lactate, and acetic acid. Lanolin, Isocetyl Stearate, Isocetyl Isostearate, Isostearyl Isostearate, Cholesteryl 12-Hydroxystearate, Phytosteryl 12-Hydroxystearate, Phytosteryl Oleate, Ethylene Glycol Di-2-Ethylhexanoate, Dipentaerythritol Fatty Acid Ester, Alkyl Glycol Monoisostearate, Neopentyl Glycol Diethylhexanoate, Neopentyl Glycol Dicaprate, Pentaerythritol Tetra-2-Ethylhexanoate, Pentaerythritol Tetraisostearate Glyceryl tri-2-ethylhexanoate (triethylhexanoin), caprylic / capric triglyceride, glyceryl triisostearate, caprylic / capric / myristic / stearic triglyceride, glyceryl trimyristate, glyceryl tricaprylate, glyceryl tricaprate, glyceryl tri-2-heptylundecanoate, trimethylolpropane triisostearate, trimethylolpropane tri-2-ethylhexanoate, ditrimethylolpropane oligoester (isostearate / sebacate), Erythrityl triethylhexanoate, dipentaerythrityl tripolyhydroxystearate, trehalose isostearate esters, dipentaerythrityl pentaisostearate, diglyceryl triisostearate, diglyceryl tetraisostearate, diisostearyl malate, castor oil fatty acid methyl ester, isopropyl lanolinate, oleyl oleate, acetoglyceride, 2-heptyl undecyl palmitate, diisobutyl adipate, (adipate, 2-ethylhexanoate, stearic acid) glycerin oligoester,(2-Hexyldecanoic acid / sebacic acid) diglyceryl oligoester, N-lauroyl-L-glutamic acid-2-octyldodecyl ester, di-2-heptylundecyl adipate, hexyl laurate, ethyl laurate, di-2-ethylhexyl sebacate, 2-hexyldecyl myristate, 2-hexyldecyl palmitate, 2-hexyldecyl adipate, diisopropyl sebacate, 2-ethylhexyl succinate, paramethoxycinnamate, pentaerythritol tetralosinate, glyceryl tritetradecanoate, glyceryl triisopalmitate, ethyl acetate, butyl acetate, quer The ingredients are triethyl phosphate, glyceryl tri(behenate / isostearate / eicosanedioate), glyceryl (behenate / eicosanedioate), bisethoxydiglycol succinate, neopentyl glycol diisononanoate, polyglyceryl-2 isostearate / dimer dilinoleate copolymer, hydrogenated castor oil dimer dilinoleate, propanediol dicaprylate / caprate, propanediol diisostearate, polyglyceryl-6 octacaprylate, bisethoxydiglycol cyclohexane-1,4-dicarboxylic acid, and glyceryl diparamethoxycinnamate / monoisooctylate.

[0047] Examples of hydrocarbon oils include squalane (such as synthetic squalane and vegetable squalane), squalene, isododecane, light liquid isoparaffin, liquid paraffin, liquid isoparaffin, hydrogenated isopolybutene, hydrogenated polydecene, mineral oil, and petrolatum.

[0048] Examples of silicone oils include dimethicone; dimethiconol; cyclomethicone; dimethylpolysiloxane; trisiloxane; phenyl trimethicone; methyl trimethicone; aminodimethicones such as amodimethicone, aminopropyl dimethicone, and aminoethylaminopropyl dimethicone; and polyether-modified dimethicones such as PEG-3 dimethicone, PEG-9 polydimethylsiloxyethyl dimethicone, PEG-10 dimethicone, PEG-11 methyl ether dimethicone, PEG-32 methyl ether dimethicone, PEG / PPG-20 / 22 butyl ether dimethicone, cetyl PEG / PPG-10 / 1 dimethicone, and lauryl PEG-9 polydimethylsiloxane ethyl dimethicone.

[0049] The component (C) as an alcohol with 6 or more carbon atoms may be a higher alcohol or an aromatic alcohol. The higher alcohol may be an aliphatic alcohol or a synthetic alcohol. Examples of aliphatic alcohols include saturated aliphatic alcohols such as lauryl alcohol, myristyl alcohol, cetanol, cetearyl alcohol, stearyl alcohol, arachidyl alcohol, and behenyl alcohol, and unsaturated aliphatic alcohols such as oleyl alcohol. Examples of synthetic alcohols include hexyldecanol, isostearyl alcohol, and octyldodecanol and decyltetradecanol. Examples of aromatic alcohols include aromatic ether alcohols such as phenoxyethanol and phenoxyisopropanol.

[0050] Component (C) is preferably a silicone oil. The silicone oil is preferably dimethicone.

[0051] Component (C) is not limited to the above examples.

[0052] The hair composition according to this embodiment may contain one or more components (C).

[0053] [Component (D)] The hair composition according to this embodiment may further contain component (D). Component (D) is at least one selected from the group consisting of anionic surfactants and cationic surfactants. Anionic surfactants may be included, for example, when the hair composition is used as a hair cleansing composition such as a hair shampoo. Cationic surfactants may be included, for example, when the hair composition is used as a hair cosmetic composition such as a hair rinse, hair conditioner, or hair treatment.

[0054] The amount of component (D) in the hair composition may be, for example, 20% by mass or less, 15% by mass or less, 14% by mass or less, 13% by mass or less, and even 12% by mass or less, if component (D) is an anionic surfactant. In this case, the amount of component (D) in the hair composition may be, for example, greater than 0% by mass, 1% by mass or more, 2% by mass or more, 3% by mass or more, 4% by mass or more, 5% by mass or more, 6% by mass or more, 7% by mass or more, and even 8% by mass or more. The amount of component (D) in the hair composition may be, for example, 5% by mass or less, 4% by mass or less, 3% by mass or less, and even 2.5% by mass or less, if component (D) is a cationic surfactant. In this case, the amount of component (D) in the hair composition may be, for example, greater than 0% by mass, and may be 0.5% or more by mass, 1.0% or more by mass, 1.1% or more by mass, 1.2% or more by mass, 1.3% or more by mass, 1.4% or more by mass, 1.5% or more by mass, 1.6% or more by mass, 1.7% or more by mass, and even 1.8% or more by mass.

[0055] (cationic surfactant) Examples of cationic surfactants include quaternary ammonium salt type cationic surfactants and amidoamine type cationic surfactants.

[0056] Examples of quaternary ammonium salt type cationic surfactants include alkyl quaternary ammonium salts, dialkyl quaternary ammonium salts, and ether-type quaternary ammonium salts. An example of amidoamine type cationic surfactants is fatty acid amidoamines.

[0057] The alkyl quaternary ammonium salt is represented by, for example, the following formula (1).

[0058] R 1 -N + (R 2 )3·X - (1)

[0059] In formula (1), R 1 represents an alkyl group having 12 to 24 carbon atoms with a straight or branched chain. R 2 represents an alkyl group having 1 to 3 carbon atoms. X - represents a halogen atom or an alkyl sulfate group having 1 to 3 carbon atoms. X - may be Cl - or may be methosulfate ion.

[0060] Examples of the alkyl quaternary ammonium salt are lauryl trimonium chloride, cetrimonium chloride, cetearyl trimonium chloride, stearyl trimonium chloride, behenyl trimonium chloride, lauryl trimonium bromide, cetrimonium bromide, cetearyl trimonium bromide, stearyl trimonium bromide, behenyl trimonium bromide, lauryl trimonium methosulfate, cetrimonium methosulfate, cetearyl trimonium methosulfate, stearyl trimonium methosulfate, behenyl trimonium methosulfate, lauryl trimonium ethosulfate, cetrimonium ethosulfate, cetearyl trimonium ethosulfate, stearyl trimonium ethosulfate, and behenyl trimonium ethosulfate.

[0061] The dialkyl quaternary ammonium salt is represented by, for example, the following formula (2).

[0062] (R s 3 )2-N + (R 4 )2·X - (2)

[0063] In formula (2), R 3R represents an alkyl group having 12 to 24 carbon atoms, either linear or branched. 4 X represents an alkyl group with 1 to 3 carbon atoms. - X represents a halogen atom or an alkyl sulfate group having 1 to 3 carbon atoms. - It is a halogen atom. A halogen atom is Cl - That's fine.

[0064] Examples of dialkylquaternary ammonium salts include dilauryldimonium chloride, dicetyldimonium chloride, dicetyldimonium chloride, distearyldimonium chloride, and dicocoyldimonium chloride.

[0065] Ether-type quaternary ammonium salts are represented, for example, by the following formula (3).

[0066] R 5 -OAN + (R 6 )2·X - (3)

[0067] In formula (3), R 5 R represents an alkyl group having 12 to 24 carbon atoms, either linear or branched. 6 represents an alkyl group having 1 to 3 carbon atoms. A represents an alkylene group or hydroxyalkylene group having 1 to 3 carbon atoms. X - X represents a halogen atom or an alkyl sulfate group having 1 to 3 carbon atoms. - It is a halogen atom. A halogen atom is Cl - That's fine.

[0068] Examples of ether-type quaternary ammonium salts include lauroxypropyltrimonium chloride, cetoxypropyltrimonium chloride, cetearooxypropyltrimonium chloride, stearoxypropyltrimonium chloride, behenoxypropyltrimonium chloride, oleoxypropyltrimonium chloride, lauryl PG-trimonium chloride, cetyl PG-trimonium chloride, ceteal PG-trimonium chloride, stearyl PG-trimonium chloride, behenyl PG-trimonium chloride, oleyl PG-trimonium chloride, and cocoyl PG-trimonium chloride.

[0069] Fatty acid amidoamines can be represented, for example, by the following formula (4).

[0070] R 7 -CONH-AN-(R 8 )2(4)

[0071] In formula (4), R 7 R represents an alkyl group having 11 to 23 carbon atoms, either linear or branched. 8 represents an alkyl group having 1 to 3 carbon atoms. A represents an alkylene group or hydroxyalkylene group having 1 to 3 carbon atoms.

[0072] Examples of fatty acid amidoamines include dimethylaminopropyl myristate, dimethylaminopropyl palmitate, dimethylaminopropyl stearate, dimethylaminopropyl behenate, diethylaminoethyl myristate, diethylaminoethyl palmitate, diethylaminoethyl stearate, diethylaminoethyl behenate, diethylaminopropyl myristate, diethylaminopropyl palmitate, diethylaminopropyl stearate, and diethylaminopropyl behenate.

[0073] (Anionic surfactant) Examples of anionic surfactants include amino acid-based surfactants, taurine-based surfactants, carboxylic acid-based surfactants, succinic acid-based surfactants, sulfonic acid-based surfactants, and sulfate ester-based surfactants.

[0074] Examples of amino acid-based surfactants include glutamic acid-based surfactants, alanine-based surfactants, aspartic acid-based surfactants, and glycine-based surfactants.

[0075] Examples of glutamate-based surfactants include cocoyl glutamate, lauroyl glutamate, and myristoyl glutamate. Examples of alanine-based surfactants include cocoyl alanine salt, cocoyl methyl alanine salt, lauroyl methyl alanine salt, and myristoyl methyl alanine salt. Examples of aspartate-based surfactants include lauroyl aspartate and acyl (C12,14) aspartate. Examples of glycine-based surfactants include cocoyl glycine salt, lauroyl glycine salt, lauroyl sarcosine salt, and cocoyl sarcosine salt. Examples of each salt include sodium salt, potassium salt, and triethanolamine salt.

[0076] Examples of taurine-based surfactants include cocoyl taurine salt, cocoyl methyl taurine salt, cocoyl methyl taurine salt, and caproyl methyl taurine salt, with cocoyl methyl taurine salt being a preferred example. Examples of each salt include sodium salt and potassium salt. Each salt may also be a sodium salt.

[0077] Examples of carboxylic acid-based surfactants are alkyl ether carboxylates. Examples of alkyl ether carboxylates include sodium laureth-4 carboxylate, sodium laureth-5 carboxylate, sodium laureth-6 carboxylate, sodium laureth-13 carboxylate, sodium C12-13 pareth-8 carboxylate, and sodium C12-15 pareth-8 carboxylate, with sodium laureth-4 carboxylate being a preferred example.

[0078] When the anionic surfactant contains an amino acid-based surfactant and / or a taurine-based surfactant (preferably a taurine-based surfactant) and a carboxylic acid-based surfactant, the total content X1 (weight%) of the amino acid-based surfactant and the taurine-based surfactant and the content X2 (weight%) of the carboxylic acid-based surfactant may satisfy X1 ≥ X2, and may satisfy X1 ≥ X2 × 1.5, X1 ≥ X2 × 2.0, and even X1 ≥ X2 × 2.5. X1 and X2 may satisfy X1 ≤ X2.

[0079] An example of a succinic acid-based surfactant is polyoxyethylene sulfosuccinate.

[0080] An example of a sulfonic acid-based surfactant is α-olefin sulfonate.

[0081] Examples of sulfate ester surfactants include alkyl sulfate salts and alkyl ether sulfate salts. An example of an alkyl ether sulfate salt is sodium laureth sulfate.

[0082] Component (D) is not limited to the above examples.

[0083] The hair composition according to this embodiment may contain one or more components (D).

[0084] [Other ingredients] The hair composition according to this embodiment may contain any components other than those described above. These components may be components included in known hair compositions.

[0085] The following may be appropriately included as optional ingredients: water (e.g., purified water), polyhydric alcohols, cationic polymers, amphoteric surfactants, hydrolyzed peptides, vitamins, plant extracts, humectants, UV absorbers, antioxidants, preservatives, amino acids, fragrances, essential oils, pigments, pH adjusters, chelating agents, solvents, anti-inflammatory agents, and gelling agents.

[0086] The pH of the hair composition according to this embodiment is preferably acidic. When the pH of the hair composition is acidic, the opened cuticles can be easily closed. As a result, the outflow of oily components from the hair can be suppressed. The pH of the hair composition may be less than 7.0, and may be 6.5 or less, 6.0 or less, 5.5 or less, and even 5.0 or less. The pH of the hair composition may be 2.0 or higher, and may be 2.5 or higher, 3.0 or higher, 3.5 or higher, 4.0 or higher, and even 4.5 or higher. By applying the hair composition, the pH of the hair after application can be brought closer to the isoelectric point of hair, which is pH 4.0 to 5.5. As a result, the hair composition can improve its treatment effect.

[0087] The pH of the hair composition can be adjusted using the pH adjusting agent described above.

[0088] The hair composition according to this embodiment can be prepared in various dosage forms. Preferred dosage forms are gel, solution, cream, or emulsion. When the hair composition has an appropriate viscosity, it is less likely to drip when applied to the hair and can be applied uniformly. Therefore, it is easier to obtain an excellent treatment effect. The dosage form of the hair composition may also be other forms such as foam, mist, or spray.

[0089] The hair composition according to this embodiment is applicable to a variety of hair products. Preferred product forms are hair cosmetic compositions such as hair rinses, hair conditioners, and hair treatments. The product form of the hair composition may also be a hair cleansing composition such as a hair shampoo. [Examples]

[0090] The present invention will be described in more detail below with reference to examples. The present invention is not limited to the following examples.

[0091] [Hair composition] Hair compositions having the compositions shown in Tables 1 and 2 below were prepared by mixing each component. In the "Components" column of each table, the notations A to D correspond to components (A) to (D), respectively. In addition, the notation b in the "Components" column of each table is a nonionic surfactant that does not meet the conditions of component (B) (HLB value greater than 14.0). The unit of the component amount in each table is mass%, and "-" means that the component is not contained. The hair compositions shown in Tables 1 and 2 were adjusted to a pH of 4.7 using a pH adjuster.

[0092] The HLB values ​​of components (B) and (b) contained in the hair compositions shown in Tables 1 and 2 are as follows: Glyceryl oleate HLB value 3.2 PEG-7 glyceryl coconut oil fatty acid HLB value 11.0 PPG-15 Stearyl HLB value 13.4 Polysorbate-80 HLB value 14.4 PEG-60 Hydrogenated Castor Oil HLB Value: 18.4

[0093] [Evaluation of hair composition] The following evaluations were performed on each of the prepared hair compositions.

[0094] (Hair softness) After uniformly applying the hair compositions according to the examples and comparative examples to evaluation hair bundles, the evaluation hair bundles were washed and rinsed with running water. Then, the evaluation hair bundles were dried with a hairdryer. The softness of the middle and ends of the evaluation hair bundles after drying was then sensorily evaluated as "hair softness." The sensory evaluation was conducted by 10 professional evaluators. For each evaluation item, a rating of 5 was given for "very good," 4 for "good," 3 for "average," 2 for "not very good," and 1 for "bad." For each evaluation item, a rating of "◎" was given if the average score of the 10 professional evaluators was 4.0 or higher, "○" if it was 3.0 or higher but less than 4.0, "△" if it was 2.0 or higher but less than 3.0, and "×" if it was less than 2.0. The evaluation results are shown in Tables 1 and 2.

[0095] (How easily your fingers can run through your hair) The hair compositions according to the examples and comparative examples were uniformly applied to evaluation hair bundles, and then the evaluation hair bundles were washed and rinsed with running water. After that, the evaluation hair bundles were dried with a hairdryer. The smoothness of the hair in the middle and ends of the dried evaluation hair bundles was then evaluated by sensory evaluation as "smoothness of combing". The sensory evaluation was performed by 10 professional evaluators. For each evaluation item, a rating was given on a scale of 1 to 1: "Excellent" = 5, "Good" = 4, "Average" = 3, "Not very good" = 2, and "Poor" = 1. For each evaluation item, a rating was given on a scale of 1 to 1 if the average score of the 10 professional evaluators was 4.0 or higher, "○" if it was 3.0 or higher but less than 4.0, "△" if it was 2.0 or higher but less than 3.0, and "×" if it was less than 2.0. The evaluation results are shown in Tables 1 and 2.

[0096] (cleanability) The hair compositions according to the examples and comparative examples were uniformly applied to evaluation hair bundles, and then the evaluation hair bundles were washed and rinsed with running water. The feeling of cleanliness after rinsing with running water was evaluated as "cleanliness" by sensory evaluation. The sensory evaluation was conducted by 10 professional evaluators. In particular, the hair compositions according to Examples 11 and 12 were highly rated by 10 and 8 panelists, respectively, as providing a strong sense of cleanliness, indicating excellent cleanliness.

[0097] [Table 1]

[0098] [Table 2]

[0099] As shown in Table 1, when the hair composition according to each example was used, hair hardening was suppressed in both the middle and tip sections, and the hair remained soft. In addition, when the hair composition according to each example was used, the hair was smooth to the touch in both the middle and tip sections. [Industrial applicability]

[0100] The hair composition of the present invention can be used in a variety of hair products. Preferably, the hair composition of the present invention can be used as a hair cosmetic composition such as a hair rinse, hair conditioner, or hair treatment.

Claims

1. A hair composition containing the following ingredients (A) to (C). (A) At least one selected from the group consisting of alkyl glucosides and polyglycerol fatty acid esters (B) Nonionic surfactants that do not fall under component (A) above and have an HLB value of 14.0 or less. (C) At least one selected from the group consisting of oily components and alcohols with 6 or more carbon atoms.

2. The above component (A) is an alkyl glucoside. The hair composition according to claim 1.

3. The alkyl glucoside is at least one selected from the group consisting of decyl glucoside and lauryl glucoside. The hair composition according to claim 2.

4. The component (B) is at least one selected from the group consisting of polypropylene glycol ether, polyoxyethylene polyhydric alcohol fatty acid ester, and glycerin fatty acid ester. The hair composition according to claim 1.

5. The amount of component (A) in the hair composition is 2.5% by mass or less. The hair composition according to claim 1.

6. The component (D) further contains at least one selected from the group consisting of anionic surfactants and cationic surfactants. The hair composition according to claim 1.

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