Oil-in-water type hair conditioning composition or oil-in-water type fiber conditioning composition for hair accessory product

Abstract

To provide an oil-in-water type hair conditioning composition or an oil-in-water type fiber conditioning composition for hair accessory products which can be smoothly spread on hair or fibers for hair accessory products upon application, reduces stickiness, ensures good combing and setting properties of the hair or the fibers for hair accessory products after heating is applied for hairstyling following application, and maintains combability of the hair or the fibers for hair accessory products even after repeated heating, rinsing, and drying.SOLUTION: An oil-in-water type hair conditioning composition or an oil-in-water type fiber conditioning composition for hair accessory products containing the following component (A) and having a viscosity at 30°C of 5,000 mPa s or more and 700,000 mPa s or less: (A) a solid fat having a melting point of 40°C or higher.SELECTED DRAWING: None

Description

[Technical Field]

[0001] The present invention relates to a water-in-oil hair conditioning composition or a water-in-oil fabric conditioning composition for headwear. [Background technology]

[0002] Various hair compositions have been developed to condition and shape hair, and for example, solid oils such as waxes are used to impart styling properties such as setting power and retention power to the desired shape. However, when solid oils are contained in the composition, it is difficult to spread the composition over the entire hair when applied to the hair, and the hair is likely to become sticky.

[0003] It has been reported that, for example, by incorporating a solid oil, a liquid oil, and a crosslinked siloxane elastomer and controlling the mass ratio of the solid oil to the liquid oil within a specific range, it is possible to obtain a water-in-oil emulsion cosmetic that has an excellent hair styling effect, is highly functional in moisturizing the tissue to which it is applied, has a smooth feel when applied with the fingers that differs from creams and waxes, and does not leave a sticky feeling on the hands or hair (Patent Document 1). [Prior art documents] [Patent documents]

[0004] [Patent Document 1] International Publication No. 2019 / 44685 Summary of the Invention [Problem to be solved by the invention]

[0005] However, although the above-mentioned water-in-oil emulsion cosmetics are intended to be applied to hair, they are not designed to be heated after application, and therefore no consideration has been given at all to the combability and settability of the hair after styling with heat applied to the hair, nor to the damage to the hair that may occur when heat is repeatedly applied to the hair. The present inventors conducted studies to develop a water-in-oil hair conditioning composition or a water-in-oil fiber conditioning composition for head accessories that contains a solid oil and that is heated after application. As a result, they found that the composition is difficult to spread on the hair or head accessory fibers when applied, and can cause stickiness; that the hair or head accessory fibers have poor combability and insufficient settling ability after application and styling with heat; and that the combability of the hair or head accessory fibers is easily impaired after repeated application of heat, rinsing, and drying; in other words, the hair or head accessory fibers are easily damaged when heat is repeatedly applied. The object of the present invention is to provide a water-in-oil hair conditioning composition or a water-in-oil fiber conditioning composition for head accessories that is easily spread on hair or head accessory fibers when applied, is less sticky, and provides good combability and settability to the hair or head accessory fibers after application and styling with heat, and that is unlikely to impair the combability of the hair or head accessory fibers even after repeated application of heat, rinsing, and drying, i.e., that is unlikely to damage the hair or head accessory fibers when repeatedly heated, and a method for conditioning hair or head accessory fibers using said composition, as well as a method for conditioning hair or head accessory fibers using said composition. [Means for solving the problem]

[0006] As a result of studies to solve the above-mentioned problems, the present inventors have found that, by incorporating a solid fat having specific properties and controlling the viscosity within a specific range, it is possible to obtain a conditioning composition that is easy to spread on hair or fibers for head accessories (hereinafter also referred to as "hair, etc.") when applied, is less sticky, and provides good combability and settability of the hair, etc. when heat is applied thereto and the hair, etc. is styled after application, and is less likely to lose combability even after repeated application of heat, rinsing, and drying, i.e., is less likely to damage the hair, etc. when heat is applied repeatedly.

[0007] That is, the present invention provides the following [1] to

[12] . [1] A water-in-oil hair conditioning composition or a water-in-oil fiber conditioning composition for head accessories, comprising the following component (A) and having a viscosity at 30°C of 5,000 mPa·s or more and 700,000 mPa·s or less: (A) A solid fat having a melting point of 40°C or higher [2] The water-in-oil hair conditioning composition or the water-in-oil fiber conditioning composition for head accessories according to [1], further comprising 0.1% by mass or more and 10% by mass or less of the following component (B): (B) A nonionic surfactant having an HLB value of 2 or more and 6 or less according to the Griffin method. [3] The water-in-oil hair conditioning composition or the water-in-oil fiber conditioning composition for head accessories according to [1] or [2], wherein the mass ratio of component (A) to component (B) [(A) / (B)] is 0.01 or more and 10 or less. [4] The water-in-oil hair conditioning composition or the water-in-oil fiber conditioning composition for head accessories according to any one of [1] to [3] above, further comprising the following component (C): (C) Thickening polysaccharides [5] The water-in-oil hair conditioning composition or the water-in-oil fiber conditioning composition for head accessories according to [4] above, wherein component (C) is a nonionic polysaccharide. [6] The water-in-oil hair conditioning composition or the water-in-oil fiber conditioning composition for head accessories according to the above [4] or [5], wherein component (C) is a nonionic polysaccharide having an alkyl group or an alkenyl group and having 8 to 22 carbon atoms. [7] The water-in-oil hair conditioning composition or the water-in-oil fiber conditioning composition for head accessories according to any one of [1] to [6], wherein the content of component (A) is 0.1% by mass or more and 30% by mass or less. [8] The water-in-oil hair conditioning composition or the water-in-oil fiber conditioning composition for head accessories according to any one of [1] to [7] above, wherein the solid fat is one or more selected from the group consisting of ceramides, sphingosines, and waxes. [9] The water-in-oil hair conditioning composition or the water-in-oil fiber conditioning composition for head accessories according to any one of [1] to [8] above, further comprising the following component (D): (D) Oil that is liquid at 30°C

[10] The water-in-oil hair conditioning composition or the water-in-oil fiber conditioning composition for head accessories according to any one of [1] to [9] above, further comprising the following component (E): (E) Powder

[11] A method for conditioning hair or fibers for head accessories, comprising carrying out the following step (I) and then step (II): Step (I): A step of applying a water-in-oil hair conditioning composition or a water-in-oil fiber conditioning composition for head accessories, which contains the following component (A) and has a viscosity at 30°C of 5,000 mPa·s or more and 700,000 mPa·s or less, to fibers for head accessories: (A) A solid fat having a melting point of 40°C or higher Step (II): Heating the hair or hair accessory fiber to 60°C or higher and 240°C or lower

[12] The hair conditioning method according to

[11] above, wherein after step (I), step (II) is carried out without rinsing the hair or fiber for a head accessory. [Effects of the Invention]

[0008] According to the present invention, it is possible to provide a water-in-oil hair conditioning composition or a water-in-oil fiber conditioning composition for head accessories that is easy to spread on hair etc. when applied, suppresses stickiness of hair etc., and provides good combability and settability of hair etc. after application and styling by applying heat thereto, and is unlikely to impair combability of hair etc. even after repeated application of heat, rinsing, and drying, i.e., is unlikely to cause damage to hair etc. when repeatedly applied with heat. DETAILED DESCRIPTION OF THE INVENTION

[0009] [Definition] In this specification, the "water-in-oil hair conditioning composition" and the "water-in-oil fiber conditioning composition for head accessories" may be collectively referred to as the "conditioning composition." As used herein, "hair" primarily refers to human scalp hair, but also includes hair that has been cut off from the human head. In this specification, the term "headwear product" refers to, for example, hair wigs, hairpieces, weaving, hair extensions, braided hair, hair accessories, doll hair, and the like. In this specification, the term "fiber for head accessories" refers to fibers used in the head accessories.

[0010] <Fibers for hair or head accessories> The conditioning composition of the present invention is applied to hair or fibers for head accessories, and is more preferably applied to hair. Fibers for head accessories may be either naturally-derived or synthetic, but naturally-derived fibers are preferred. Naturally-derived fibers refer to fibers collected from natural plants and animals (excluding human hair) or artificially produced fibers made from proteins, polysaccharides, and the like. Among these, artificially produced fibers made from animal hair, or proteins or polysaccharides such as proteins derived from soybeans, peanuts, corn, silk, and the like are preferred. Regenerated protein fibers made from keratin, collagen, casein, soybean protein, peanut protein, corn protein, silk protein (e.g., silk fibroin), and the like 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, with regenerated collagen fibers being even more preferred. Regenerated collagen fibers can be produced by known techniques. The composition of regenerated collagen fibers does not need to be 100% collagen, and they may contain natural polymers, synthetic polymers, additives, etc. to improve quality. 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. In addition, filaments emerging from the drying process in the regenerated collagen fiber production process can also be used directly.

[0011] Examples of synthetic fibers include fibers containing a synthetic resin as a main component. From the viewpoint of ease of production of synthetic fibers and of obtaining a texture similar to that of human hair, the synthetic resin is preferably a thermoplastic resin, more preferably at least one selected from the group consisting of polyester resin, polyamide resin, polyimide resin, polyamideimide resin, vinyl chloride resin, polycarbonate resin, polyphenylene sulfide resin, and modacrylic resin (a copolymer of acrylonitrile and vinyl chloride). Here, the term "main component" refers to 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, still more preferably 80% by mass or more, and even more preferably 90% by mass or more, but not more than 100% by mass. In addition to the above synthetic resins, the synthetic fibers may further contain various components such as flame retardants, flame retardant auxiliaries, light or heat stabilizers, fluorescent agents, antioxidants, antistatic agents, and ultraviolet absorbers, as long as the effects of the present invention are not impaired.

[0012] Conditioning Composition <Component (A)> The conditioning composition of the present invention contains, as component (A), a solid fat having a melting point of 40°C or higher. Solid fats with a melting point below 40°C cause stickiness on hair upon application, reducing the settability of hair after application and subsequent styling with heat. Furthermore, combability of hair after repeated application of heat, rinsing, and drying is impaired. Herein, "solid fat" refers to a solid oily component. The "melting point" refers to the temperature corresponding to the most endothermic peak observed by differential scanning calorimetry. The melting point can be measured using a differential scanning calorimeter (DSC), and specifically, the method described in the Examples below can be employed. For example, a DSC7000X manufactured by Hitachi High-Tech Science Corporation can be used as the differential scanning calorimeter (DSC).

[0013] The melting point is 40° C. or higher, but from the viewpoints of improving the ease of spreading on hair etc. when applied, suppressing stickiness of hair etc., improving combability and setting ability of hair etc. after applying heat to style the hair after application, and not impairing combability of hair etc. after repeatedly applying heat, rinsing and drying, the melting point is preferably 50° C. or higher, more preferably 55° C. or higher, even more preferably 60° C. or higher, and even more preferably 65° C. or higher. The upper limit of the melting point is preferably 90° C. or lower, more preferably 85° C. or lower, and even more preferably 80° C. or lower, from the viewpoint of easily enjoying the effects of the present invention.

[0014] The solid fat is not particularly limited as long as it has a melting point of 40° C. or higher, and examples thereof include sphingolipids and waxes. Component (A) can be used alone or in combination of two or more.

[0015] Examples of sphingolipids include ceramides and sphingosines.

[0016] Examples of ceramides include ceramide-like structural substances described in JP-A Nos. 62-228048, 63-216812, 63-227513, 64-29347, 64-31752, and 8-319263. Natural ceramides such as ceramide 2 may also be used.

[0017] Among these, from the viewpoint of enhancing the effects of the present invention, the ceramides are preferably one or more selected from the group consisting of compounds represented by the following general formula (1), compounds represented by the following general formula (2), and compounds represented by the following general formula (3), more preferably one or more selected from the group consisting of compounds represented by the following general formula (1) and compounds represented by the following general formula (3), and even more preferably compounds represented by the following general formula (1).

[0018] [ka]

[0019] [In formula (1), R 1 represents a hydrocarbon group having 10 to 26 carbon atoms, R 2 represents a hydrocarbon group having 9 to 25 carbon atoms, X is -(CH2) n - (n is an integer of 2 to 6).

[0020] [ka]

[0021] [In formula (2), R 3 and R 4 are the same or different and represent optionally hydroxylated hydrocarbon groups having 1 to 40 carbon atoms, R 5 represents an alkylene group having 1 to 6 carbon atoms or a single bond, R 6represents a hydrogen atom, an alkoxy group having 1 to 12 carbon atoms, or a 2,3-dihydroxypropyloxy group. However, R 5 When is a single bond, R 6 is a hydrogen atom.

[0022] [ka]

[0023] [In formula (3), R 7 represents an alkyl group having 1 to 24 carbon atoms, R 8 and R 9 are the same or different and represent alkyl groups having 1 to 5 carbon atoms, R 10 and R 11 are the same or different and represent a methyl group or hydrogen.

[0024] In the above formulas (1) and (2), the hydrocarbon group is preferably an alkyl group or an alkenyl group. 1 The number of carbon atoms in R is preferably 10 to 24, and more preferably 16 to 18. 2 The number of carbon atoms in R is preferably 9 to 22, and more preferably 14 to 18. 3 The number of carbon atoms in R is preferably 8 to 26, and more preferably 12 to 22. 4 The number of carbon atoms in R is preferably 9 to 25, and more preferably 11 to 21. 10 and R 11 is preferably a methyl group. In the above formula (3), R 7 The number of carbon atoms in R is preferably 8 to 24, more preferably 12 to 24, and even more preferably 16 to 24. 8 and R 9 The number of carbon atoms in R is preferably 1 to 3. 10 and R 11 is preferably a methyl group.

[0025] A suitable example of the compound represented by the above formula (1) is N-(hexadecyloxyhydroxypropyl)-N-hydroxyethylhexadecanamide (INCI name: Cetyl-PG HydroxyethylPalmitamide). A suitable example of the compound represented by the above formula (2) is long-chain dibasic acid bis-3-methoxypropylamide. A suitable example of the compound represented by the above formula (3) is bismethoxypropylamidoisodocosane.

[0026] Sphingosines may be either naturally occurring extracts or synthetic products, and examples thereof include naturally occurring sphingosines or synthetic products with the same structure, and derivatives thereof (hereinafter referred to as "natural sphingosines"), or pseudo-sphingosines having a sphingosine structure (hereinafter referred to as "pseudo-sphingosines").

[0027] Examples of natural sphingosines include natural sphingosine, dihydrosphingosine, phytosphingosine, sphingadienine, dehydrosphingosine, dehydrophytosphingosine, and their N-alkyl forms (e.g., N-methyl forms). These sphingosines may be used in the form of an optically active natural form (D(+) form), an optically active non-natural form (L(-) form), or a mixture of the natural and non-natural forms. The relative configuration of the above compounds may be that of the natural form, or any other non-natural form, or may be a mixture of these.

[0028] Commercially available natural sphingosine includes, for example, D-sphingosine (4-sphingosine) (SIGMA-ALDRICH), DS-phytosphingosine (DOOSAN), and phytosphingosine (Cosmopharm).

[0029] Examples of pseudo-sphingosines include compounds represented by the following formulas (i) to (iv), 1-(2-hydroxyethylamino)-3-isostearyloxy-2-propanol.

[0030] [ka]

[0031] Among these, from the viewpoint of enhancing the effects of the present invention, natural sphingosine, phytosphingosine, and pseudosphingosine are preferred as sphingosines, pseudosphingosine is more preferred, and pseudosphingosine represented by the above formula (ii) and 1-(2-hydroxyethylamino)-3-isostearyloxy-2-propanol are even more preferred.

[0032] Examples of waxes include solid waxes such as synthetic waxes, natural waxes, petroleum waxes, and mineral waxes.

[0033] Examples of natural waxes include carnauba wax, candelilla wax, rice wax, sunflower seed wax, lanolin, beeswax, fatty acids such as stearic acid and behenic acid, and higher alcohols such as cetanol, stearyl alcohol, and behenyl alcohol. Examples of petroleum waxes include paraffin wax, microcrystalline wax, hydrogenated microcrystalline wax, polyethylene wax, polyethylene (ethylene / propylene) copolymer mixture, and petrolatum. Examples of paraffin waxes include high-melting-point paraffins specified in the Quasi-drug Raw Materials Standards 2021. Examples of mineral waxes include ozokerite and ceresin. Examples of synthetic waxes include fatty acid polyhydric alcohol esters such as glyceryl tribehenate and pentaerythrityl rosinate, fatty acid (long-chain) alkyl esters such as behenyl behenate, and hydrogenated fatty acids such as hydrogenated castor oil.

[0034] Among these, from the viewpoint of further enhancing the effects of the present invention, natural waxes and ceramides are preferred as component (A), ceramides are more preferred, the compounds represented by the above general formulas (1) to (3) are even more preferred, one or more selected from cetyl PG hydroxyethyl palmitamide and bismethoxypropylamidoisodocosane are even more preferred, and cetyl PG hydroxyethyl palmitamide is even more preferred.

[0035] Specific examples of solid fats having a melting point of 40°C or higher include the following: Beeswax Melting point: 60-70°C Carnauba wax melting point: 80-86°C Cetyl PG hydroxyethyl palmitamide, melting point: 73°C Bismethoxypropylamidoisodocosane Melting point: 75℃ Rice wax (rice bran wax) Melting point: 80°C Candelilla wax (melting point: 68-72°C) Behenyl behenate, melting point: 74°C Hydrogenated castor oil, melting point: 85°C

[0036] The content of component (A) in the conditioning composition of the present invention is preferably 0.1% by mass or more, more preferably 1% by mass or more, even more preferably 3% by mass or more, and even more preferably 5% by mass or more, from the viewpoints of improving combability and settability of hair, etc. after application and styling with heat, and not impairing combability of hair, etc. after repeated application of heat, rinsing, and drying, and is preferably 30% by mass or less, more preferably 20% by mass or less, even more preferably 15% by mass or less, and even more preferably 12% by mass or less, from the viewpoints of improving ease of spreading on hair, etc. upon application and suppressing stickiness of hair, etc. That is, the content of component (A) in the conditioning composition of the present invention is preferably 0.1% by mass or more and 30% by mass or less, more preferably 1% by mass or more and 20% by mass or less, even more preferably 3% by mass or more and 15% by mass or less, and even more preferably 5% by mass or more and 12% by mass or less.

[0037] The viscosity of the water-in-oil hair conditioning composition of the present invention at 30°C must be 5,000 mPa·s or more and 700,000 mPa·s or less. If the viscosity is less than 5,000 mPa·s, the composition is difficult to spread over the entire hair, resulting in poor settability after application and heat styling. Friction between hair strands also reduces combability, and combability is also impaired after repeated application of heat, rinsing, and drying. Furthermore, if the viscosity exceeds 700,000 mPa·s, the hair becomes sticky upon application and poor settability after application and heat styling. Here, "viscosity" in this specification is measured using a Brookfield viscometer after a sample is kept at 30°C for 30 minutes to regulate the temperature. Specifically, the method described in the Examples below can be adopted. It is possible to use a B-type viscometer with a different measurement range depending on the viscosity of the sample. For example, the TVB10M viscometer and the TVB10R viscometer (both manufactured by Toki Sangyo Co., Ltd.) can be used as the B-type viscometer.

[0038] The viscosity of the conditioning composition of the present invention is 5,000 mPa·s or more and 700,000 mPa·s or less, but from the viewpoints of improving the settability after application and styling with heat, and not impairing the combability of hair, etc. after repeated application of heat, rinsing, and drying, the viscosity is preferably 10,000 mPa·s or more, more preferably 20,000 mPa·s or more, and even more preferably 70,000 mPa·s or more. Furthermore, from the viewpoints of improving the ease of spreading the composition on hair, etc. when applied, and preventing stickiness of hair, etc., the viscosity is preferably 500,000 mPa·s or less, more preferably 200,000 mPa·s or less, and even more preferably 120,000 mPa·s or less. That is, the viscosity is preferably 10,000 mPa·s or more and 500,000 mPa·s or less, more preferably 20,000 mPa·s or more and 200,000 mPa·s or less, and even more preferably 70,000 mPa·s or more and 120,000 mPa·s or less.

[0039] <Ingredient (B)> The conditioning composition of the present invention preferably contains, as component (B), a nonionic surfactant having an HLB value of 2 to 6, as determined by the Griffin method. The inclusion of such a nonionic surfactant allows component (A) to be microcrystallized in the conditioning composition. This allows the conditioning composition to be more easily spread over the entire hair when applied to the hair, etc., and component (A) to be applied evenly and thinly over the entire hair, etc., thereby further reducing stickiness of the hair, etc., and further improving not only the combability and settability of the hair, etc. after application and styling with heat, but also the combability of the hair, etc. after repeated application of heat, rinsing, and drying, i.e., the resistance to damage to the hair, etc., caused by repeated application of heat. Note that, in this specification, the "Griffin method" refers to a method for calculating HLB using the following formula:

[0040] HLB = 20 x (total molecular weight of hydrophilic portion / molecular weight of surfactant)

[0041] The HLB value according to the Griffin method is from 2 to 6, but from the viewpoint of promoting the refinement of the crystals of component (A) and enhancing the effects of the present invention, it is preferably from 5.5 to 5.5, more preferably from 5.3 to 5, and even more preferably from 5 to 5. That is, the HLB value is preferably from 2 to 5.5, more preferably from 2 to 5.3, and even more preferably from 2 to 5.

[0042] Examples of nonionic surfactants include polyglycerin fatty acid esters, glycerin fatty acid esters, propylene glycol fatty acid esters, sorbitan fatty acid esters, polyoxyethylene sorbitan fatty acid esters, polyoxyethylene castor oil, polyoxyethylene hydrogenated castor oil, polyoxyethylene hydrogenated castor oil fatty acid esters, polyethylene glycol fatty acid esters, alkyl glyceryl ethers, alkyl polyglyceryl ethers, polyoxyethylene alkyl ether fatty acid esters, polyoxyethylene alkylamines, and silicone surfactants. Component (B) can be used alone or in combination of two or more.

[0043] Among these, from the viewpoint of promoting the refinement of the crystals of component (A) and enhancing the effects of the present invention, preferred nonionic surfactants are polyoxyethylene hydrogenated castor oil, alkyl glyceryl ether, polyglycerin fatty acid ester, sorbitan fatty acid ester, and silicone-based surfactants, more preferred are polyoxyethylene hydrogenated castor oil, alkyl glyceryl ether, polyglycerin fatty acid ester, and silicone-based surfactants, and even more preferred are alkyl glyceryl ether, polyglycerin fatty acid ester, and silicone-based surfactants.

[0044] From the viewpoint of promoting the refinement of the crystals of component (A), the alkyl moiety of the alkyl glyceryl ether is preferably derived from a linear or branched saturated fatty acid having 16 to 22 carbon atoms, more preferably from oleic acid, isostearic acid, stearic acid, hydroxystearic acid, or behenic acid, even more preferably from isostearic acid or stearic acid, and even more preferably from isostearic acid.

[0045] From the viewpoint of promoting the micronization of the crystals of component (A), the polyglycerol fatty acid ester is preferably a polyglycerol moiety formed by condensation of 2 to 20 glycerols, and the fatty acid moiety is preferably a linear or branched saturated fatty acid having 8 to 24 carbon atoms. Among such polyglycerol fatty acid esters, from the viewpoint of promoting the micronization of the crystals of component (A), polyglycerol di-fatty acid esters and polyglycerol tri-fatty acid esters are preferred, with polyglycerol di-fatty acid esters being more preferred. In this case, the fatty acid moiety is preferably a saturated fatty acid having 14 to 22 carbon atoms, more preferably a saturated fatty acid having 16 to 22 carbon atoms, more preferably oleic acid, isostearic acid, stearic acid, hydroxystearic acid, or behenic acid, even more preferably isostearic acid or stearic acid, with isostearic acid being particularly preferred. More specifically, polyglycerol di-C 16 -C 22 Saturated fatty acid ester, polyglycerin tri-C 16 -C 22 Examples of the saturated fatty acid ester include: from the viewpoint of promoting the refinement of the crystals of component (A), polyglycerol diisostearate and polyglycerol triisostearate are preferred, with polyglycerol diisostearate being more preferred; in this case, the polyglycerol moiety of the polyglycerol fatty acid ester is preferably a condensation product of 2 to 12 glycerol units, more preferably a condensation product of 2 to 10 glycerol units, even more preferably a condensation product of 2 to 3 glycerol units, and even more preferably a condensation product of 2 glycerol units.

[0046] From the viewpoint of promoting the refinement of the crystals of component (A), the silicone surfactant is preferably a polyether-modified silicone, a polyglycerin-modified silicone, a polyether / alkyl-co-modified silicone, or a polyglycerin / alkyl-co-modified silicone, with a polyether-modified silicone being more preferred. The silicone chain may be linear, branched, or crosslinked, but is preferably linear or branched, with a linear chain being more preferred. Suitable silicone surfactants include, for example, polyether-modified silicones with linear silicone chains, polyether-modified silicones with branched silicone chains, polyether-alkyl-co-modified silicones with linear silicone chains, and polyether-alkyl-co-modified silicones with branched silicone chains. Among these, polyether-modified silicones with linear silicone chains and polyether-modified silicones with branched silicone chains are preferred, polyether-modified silicones with linear silicone chains are more preferred, and one or more selected from PEG-3 dimethicone, PEG-10 dimethicone, and PEG-12 dimethicone are even more preferred, with one or more selected from PEG-3 dimethicone and PEG-10 dimethicone being even more preferred.

[0047] Specific examples of nonionic surfactants having an HLB of 2 or more and 6 or less include the following: Isostearyl glyceryl HLB:2 Polyglyceryl-10 Pentaoleate HLB: 3.5 Polyglyceryl-2 diisostearate HLB:4 PEG-9 Polydimethylsiloxyethyl Dimethicone HLB:4 PEG-3 Dimethicone HLB: 4.5 PEG-10 Dimethicone HLB: 4.5 Polyglyceryl-2 Isostearate HLB: 4.6 PEG-12 Dimethicone HLB:5 PEG-5 Hydrogenated Castor Oil HLB:5

[0048] The content of component (B) in the conditioning composition of the present invention is preferably 0.1% by mass or more, more preferably 0.5% by mass or more, even more preferably 1.5% by mass or more, even more preferably 2% by mass or more, even more preferably 2.5% by mass or more, and even more preferably 3% by mass or more, from the viewpoints of improving the ease of spreading the composition on hair, etc. when applied, suppressing stickiness of hair, etc., and improving the combability and settability of hair, etc., after application and styling with heat, and is preferably 10% by mass or less, more preferably 8.5% by mass or less, even more preferably 7% by mass or less, even more preferably 5% by mass or less, and even more preferably 4.5% by mass or less, from the viewpoints of suppressing stickiness of hair, etc. when applied, and improving the settability of hair, etc., after application and styling with heat, That is, the content of component (B) in the conditioning composition of the present invention is preferably 0.1% by mass or more and 10% by mass or less, more preferably 0.5% by mass or more and 8.5% by mass or less, even more preferably 1.5% by mass or more and 7% by mass or less, still more preferably 2% by mass or more and 5% by mass or less, still more preferably 2.5% by mass or more and 5% by mass or less, and still more preferably 3% by mass or more and 4.5% by mass or less.

[0049] <Mass ratio [(A) / (B)]> The mass ratio of component (A) to component (B) [(A) / (B)] is preferably 0.01 or more, more preferably 0.05 or more, even more preferably 0.1 or more, even more preferably 1 or more, and even more preferably 1.5 or more, from the viewpoints of improving combability and settability of hair, etc. after application and styling with heat, and not impairing combability of hair, etc. after repeated application of heat, rinsing, and drying, and is preferably 10 or less, more preferably 8.5 or less, even more preferably 6 or less, and even more preferably 4 or less, from the viewpoints of improving spreadability onto hair, etc. upon application and suppressing stickiness of hair, etc. That is, the mass ratio [(A) / (B)] is preferably 0.01 or more and 10 or less, more preferably 0.05 or more and 8.5 or less, even more preferably 0.1 or more and 8.5 or less, still more preferably 1 or more and 6 or less, and still more preferably 1.5 or more and 4 or less.

[0050] <Component (C)> The conditioning composition of the present invention preferably contains a thickening polysaccharide as component (C). By including such a thickening polysaccharide, the crystals of component (A) in the conditioning composition can be inhibited from growing larger, thereby stably maintaining component (A) in a finely divided crystalline state in the composition. This allows the conditioning composition of the present invention to be more easily spread over the entire hair when applied to the hair, etc., further reducing stickiness of the hair, etc., and is less likely to impair combability and settability after application and styling with heat, as well as combability after repeated application of heat, rinsing, and drying. In other words, it is possible to reduce damage to the hair when repeatedly heated.

[0051] Component (C) is not limited as long as it is one that is commonly used in cosmetics, and may be cationic, anionic, or nonionic. Component (C) may be used alone or in combination of two or more.

[0052] Examples of cationic polysaccharides include cationic cellulose. The cationic cellulose is not limited as long as it is one that is commonly used in cosmetics, but examples include a quaternary ammonium salt polymer (Polyquaternium-10) obtained by adding glycidyl trimethylammonium chloride to hydroxyethyl cellulose, a hydroxyethyl cellulose / dimethyl diallyl ammonium chloride copolymer (Polyquaternium-4), and a quaternary ammonium salt polymer (Polyquaternium-67) obtained by reacting hydroxyethyl cellulose with a trimethylammonium-substituted epoxide and a lauryl dimethyl ammonium-substituted epoxide.

[0053] Examples of anionic polysaccharides include alginic acid, dextran sulfate, carboxymethylcellulose, carboxymethyldextran, and hyaluronic acid.

[0054] Examples of nonionic polysaccharides include starch, pullulan, guar gum, locust bean gum, and dextrin fatty acid esters. Among these, dextrin fatty acid esters are preferred from the viewpoint of inhibiting the crystal growth of component (A).

[0055] The dextrin fatty acid ester is not limited as long as it is one that is commonly used in cosmetics, but an ester of dextrin with a saturated or unsaturated fatty acid having 8 to 22 carbon atoms is preferred, and an ester of dextrin with a saturated or unsaturated fatty acid having 14 to 20 carbon atoms is more preferred. The average degree of polymerization of the dextrin is preferably 3 to 150. Specific examples include dextrin palmitate, dextrin stearate, dextrin palmitate-stearate, dextrin oleate, dextrin isopalmitate, dextrin isostearate, dextrin myristate, and dextrin palmitate-2-ethylhexanoate.

[0056] Among these, from the viewpoint of suppressing crystal growth of component (A) and enhancing the effects of the present invention, component (C) is preferably a nonionic polysaccharide, more preferably a nonionic polysaccharide having an alkyl or alkenyl group having 8 to 22 carbon atoms, even more preferably a dextrin fatty acid ester having an alkyl or alkenyl group having 8 to 22 carbon atoms, even more preferably a dextrin fatty acid ester having an alkyl or alkenyl group having 14 to 20 carbon atoms, even more preferably dextrin palmitate, dextrin palmitate-stearate, dextrin isopalmitate, and dextrin palmitate-2-ethylhexanoate, and even more preferably dextrin palmitate.

[0057] The content of component (C) in the conditioning composition of the present invention is preferably 0.005% by mass or more, more preferably 0.03% by mass or more, even more preferably 0.1% by mass or more, and even more preferably 0.15% by mass or more, from the viewpoints of improving the combability and settability of hair, etc. after application and styling with heat, and of preventing the combability of hair, etc. from being impaired after repeated application of heat, rinsing, and drying. Furthermore, from the viewpoints of improving the spreadability of the composition on hair, etc. when applied, and suppressing stickiness of hair, etc., the content is preferably 2% by mass or less, more preferably 1.5% by mass or less, even more preferably 0.75% by mass or less, and even more preferably 0.5% by mass or less. That is, the content of component (C) in the conditioning composition of the present invention is preferably 0.005% by mass or more and 2% by mass or less, more preferably 0.03% by mass or more and 1.5% by mass or less, even more preferably 0.1% by mass or more and 0.75% by mass or less, and even more preferably 0.15% by mass or more and 0.5% by mass or less.

[0058] <Mass ratio [(A) / (C)]> The mass ratio of component (A) to component (C) [(A) / (C)] is preferably 1 or more, more preferably 7 or more, even more preferably 15 or more, and even more preferably 20 or more, from the viewpoints of improving combability and settability of hair, etc. after application and styling with heat, and of preventing deterioration of combability of hair, etc. after repeated application of heat, rinsing, and drying. Also, from the viewpoints of improving spreadability onto hair, etc. upon application and suppressing stickiness of hair, etc., it is preferably 250 or less, more preferably 180 or less, even more preferably 100 or less, even more preferably 50 or less, and even more preferably 40 or less. That is, the mass ratio [(A) / (C)] is preferably 1 or more and 250 or less, more preferably 7 or more and 180 or less, even more preferably 15 or more and 100 or less, still more preferably 20 or more and 50 or less, and still more preferably 20 or more and 40 or less.

[0059] <Ingredient (D)> The conditioning composition of the present invention can contain, as component (D), an oil that is liquid at 30° C. That is, component (D) is an oil that is liquid as a whole at 30° C. By further containing component (D), the conditioning composition can be more easily spread on hair, etc. when applied to hair, etc., and can further reduce stickiness of hair, etc., and can further improve the combability of hair, etc. after repeated application of heat, rinsing, and drying. In addition, the conditioning composition can moisturize hair, etc. after application, and can also reduce dryness of hair, etc. over time. In the present invention, "liquid at 30°C" means that the viscosity at 30°C measured with a Brookfield viscometer is 1,000 mPa·s or less. For example, a TVB10M viscometer (manufactured by Toki Sangyo Co., Ltd.) can be used as the Brookfield viscometer, and measurements can be made under the following conditions.

[0060] (1) Viscosity less than 100 mPa·s Rotor: L / Adp, 6 rpm, 60 sec (2) Viscosity is 100 mPa·s or more and 1,000 mPa·s or less Rotor: M-1, 6 rpm, 60 sec

[0061] Component (D) is not limited as long as it is one that is commonly used in cosmetics, but examples thereof include hydrocarbon oils, ester oils, higher alcohols, silicone oils, and fatty acids. Component (D) can be used alone or in combination of two or more.

[0062] Among these, hydrocarbon oils, ester oils, and silicone oils are preferred as component (D) from the viewpoints of improving the spreadability onto hair, etc. when applied and suppressing stickiness of hair, etc., improving combability of hair, etc. after repeated application of heat, rinsing, and drying, imparting moisture to hair, etc., and suppressing dryness of hair, etc. over time.

[0063] Examples of hydrocarbon oils include liquid paraffin, squalane, squalene, n-octane, n-heptane, cyclohexane, light isoparaffin, liquid isoparaffin, hydrogenated polyisobutene, polybutene, and polyisobutene. Among these, from the viewpoints of improving the spreadability onto hair, etc. upon application, improving the combability of hair, etc. after application and styling by applying heat thereto, imparting moisture to hair, etc., and suppressing dryness of hair, etc. over time, liquid paraffin, light isoparaffin, liquid isoparaffin, squalane, squalene, n-octane, n-heptane, and cyclohexane are preferred, liquid paraffin and squalane are more preferred, and squalane is even more preferred.

[0064] Examples of ester oils include esters of linear or branched fatty acids and linear or branched alcohols or polyhydric alcohols. The fatty acids may be saturated or unsaturated. There are no limitations on the ester oils as long as they are commonly used in cosmetics, but esters of saturated or unsaturated fatty acids having 3 to 22 carbon atoms and alcohols or polyhydric alcohols having 3 to 22 carbon atoms are preferred, and esters of saturated or unsaturated fatty acids having 3 to 18 carbon atoms and alcohols or polyhydric alcohols having 3 to 18 carbon atoms are more preferred. Specifically, these include isopropyl myristate, cetyl isooctanoate, isocetyl octanoate, octyldodecyl myristate, isopropyl palmitate, butyl stearate, hexyl laurate, decyl oleate, octyldodecyl oleate, hexyldecyl dimethyloctanoate, isocetyl stearate, isocetyl isostearate, ethylhexyl isononanoate, isononyl isononanoate, isotridecyl isononanoate, isostearyl isostearate, propylene glycol dicaprylate, propylene glycol diisostearate, neopentyl glycol dicaprate, cetyl Examples of suitable glyceryl 2-ethylhexanoate, 2-ethylhexyl palmitate, C12-15 alkyl benzoate, cetearyl isononanoate, caprylic / capric triglyceride, butylene glycol dicaprylate / caprate, propylene glycol dicaprylate / caprate, glyceryl triisostearate, glyceryl cocoate, oleyl oleate, ethyl laurate, di-2-ethylhexyl sebacate, 2-hexyldecyl myristate, 2-hexyldecyl palmitate, diisopropyl sebacate, and di-2-ethylhexyl succinate. Among these, from the viewpoints of improving the spreadability onto hair etc. when applied, improving the combability of hair etc. after application and styling by applying heat thereto after application, imparting moisture to hair etc., and suppressing dryness of hair etc. over time, octyldodecyl myristate, isocetyl stearate, isononyl isononanoate, isocetyl isostearate, and isopropyl palmitate are preferred, with isopropyl palmitate and isononyl isononanoate being more preferred, and isononyl isononanoate being even more preferred.

[0065] Examples of silicone oils include linear silicones, cyclic lysicones, and modified silicones. Specific examples include dimethylpolysiloxane, dimethylcyclopolysiloxane, methylphenylpolysiloxane, methylhydrogenpolysiloxane, phenyl-modified silicones, higher alcohol-modified organopolysiloxane, and fluorine-modified organopolysiloxane. Among these, dimethylpolysiloxane is preferred from the viewpoints of improving the spreadability on hair when applied, improving the combability of hair after styling by applying heat after application, providing moisture to hair, and preventing dryness of hair over time. Commercially available silicone oils include, for example, KF-96A-6cs, KF-96A-10cs, KF-96A-20cs, and KF-96A-100cs (all dimethylpolysiloxanes, manufactured by Shin-Etsu Chemical Co., Ltd.).

[0066] The content of component (D) in the conditioning composition of the present invention is preferably 5% by mass or more, more preferably 7% by mass or more, even more preferably 10% by mass or more, even more preferably 15% by mass or more, and preferably 35% by mass or less, more preferably 30% by mass or less, and even more preferably 25% by mass or less, from the viewpoints of improving spreadability on hair, etc. during application, suppressing stickiness of hair, etc., preventing loss of combability after repeated application of heat, rinsing, and drying, and of moisturizing hair, etc. and suppressing dryness of hair, etc. over time. That is, the content of component (D) in the conditioning composition of the present invention is preferably 5% by mass or more and 35% by mass or less, more preferably 7% by mass or more and 30% by mass or less, even more preferably 10% by mass or more and 25% by mass or less, and even more preferably 15% by mass or more and 25% by mass or less.

[0067] <Ingredient (E)> The conditioning composition of the present invention may contain a powder as component (E), which can enhance the effects of the present invention, particularly the effects of suppressing stickiness of hair, improving combability and setting ability of hair after application and styling with heat, and preventing deterioration of combability of hair after repeated application of heat, rinsing, and drying. Component (E) is not limited as long as it is one that is commonly used in cosmetics, and may be either an organic powder or an inorganic powder. Component (E) may be used alone or in combination of two or more types. The powder may be spherical, needle-like, or plate-like in shape, and may be treated with alumina, silica, zinc, or the like, or may be hydrophobically treated with silicone or the like.

[0068] Examples of organic powders include crosslinked organopolysiloxane, lauroyl lysine, polyamide powder, polyester powder, polyethylene powder, polypropylene powder, polystyrene powder, polyurethane, benzoguanamine powder, polymethylbenzoguanamine powder, and tetrafluoroethylene powder.

[0069] Examples of crosslinked organopolysiloxanes include crosslinked dimethylpolysiloxanes and crosslinked alkylpolysiloxanes, which may be modified with polyoxyalkylene. Note that crosslinked dimethylpolysiloxanes are polymers having a crosslinked structure in which siloxane skeletons are three-dimensionally crosslinked, and crosslinked alkylpolysiloxanes further have an alkyl group having 6 to 20 carbon atoms. Examples of crosslinked dimethylpolysiloxanes include dimethicone / vinyl dimethicone crosspolymer, dimethicone / phenylvinyl dimethicone crosspolymer, vinyl dimethicone / lauryl dimethicone crosspolymer, and lauryl polydimethylsiloxyethyl dimethicone / bisvinyl dimethicone crosspolymer. Among these, dimethicone / vinyl dimethicone crosspolymer and dimethicone / phenylvinyl dimethicone crosspolymer are preferred, and dimethicone / vinyl dimethicone crosspolymer is more preferred.

[0070] Among these, from the viewpoint of enhancing the effects of the present invention, crosslinked organopolysiloxanes are preferably crosslinked dimethylpolysiloxanes and crosslinked alkylpolysiloxanes modified with polyoxyalkylene, and more preferably crosslinked alkylpolysiloxanes modified with polyoxyalkylene. For example, commercially available dimethicone / vinyldimethicone crosspolymers include KSG-15, a mixture with decamethylcyclopentasiloxane, and KSG-16, a mixture with low-viscosity dimethylpolysiloxane (both manufactured by Shin-Etsu Chemical Co., Ltd.). For example, commercially available dimethicone / phenylvinyldimethicone crosspolymers include KSG-18, a mixture with methylphenylpolysiloxane (manufactured by Shin-Etsu Chemical Co., Ltd.). Commercially available (vinyl dimethicone / lauryl dimethicone) crosspolymers include, for example, KSG-41, a mixture with liquid paraffin, KSG-42, a mixture with light isoparaffin, KSG-43, a mixture with glyceryl tri-2-ethylhexanoate, and KSG-44, a mixture with squalane (all manufactured by Shin-Etsu Chemical Co., Ltd.).

[0071] Examples of inorganic powders include silica, talc, titanium oxide, zirconium oxide, zinc oxide, cerium oxide, magnesium oxide, barium sulfate, calcium sulfate, magnesium sulfate, calcium carbonate, magnesium carbonate, mica, kaolin, sericite, muscovite, synthetic mica, phlogopite, lepidolite, biotite, lithia mica, aluminum silicate, magnesium silicate, aluminum magnesium silicate, calcium silicate, barium silicate, strontium silicate, and metal tungstates.

[0072] The powder may be used in its solid form as is, or may be used after being uniformly mixed and dispersed in a liquid oil. Examples of liquid oils include the oils that are liquid at 30°C described above as component (D). Among these, from the standpoints of dispersibility in cosmetics and workability, it is preferable to use the powder as a dispersion diluted with a liquid oil, and it is more preferable to use silicone oil, hydrocarbon oil, or ester oil, and even more preferable to use silicone oil or hydrocarbon oil, and even more preferable to use dimethylpolysiloxane, decamethylcyclopentasiloxane, liquid paraffin, or squalane.

[0073] From the viewpoint of enhancing the effects of the present invention, the content of component (E) in the conditioning composition of the present invention is preferably 0.05% by mass or more, more preferably 0.1% by mass or more, even more preferably 0.2% by mass or more, even more preferably 0.3% by mass or more, and preferably 5% by mass or less, more preferably 3% by mass or less, even more preferably 1% by mass or less, and even more preferably 0.9% by mass or less. That is, the content of component (E) in the conditioning composition of the present invention is preferably 0.05% by mass or more and 5% by mass or less, more preferably 0.1% by mass or more and 3% by mass or less, even more preferably 0.2% by mass or more and 1% by mass or less, and still more preferably 0.3% by mass or more and 0.9% by mass or less.

[0074] In addition to the above-mentioned components, the conditioning composition of the present invention may contain components that are commonly used in cosmetics, such as oil components other than those mentioned above, surfactants other than those mentioned above, antioxidants, fragrances, preservatives, pH adjusters, blood circulation promoters, cooling agents, antiperspirants, disinfectants, skin activators, moisturizers, and refreshing agents.

[0075] From the viewpoint of enhancing the effects of the present invention, the water content in the conditioning composition of the present invention is preferably 20% by mass or more, more preferably 30% by mass or more, even more preferably 40% by mass or more, more preferably 45% by mass or more, and preferably 85% by mass or less, more preferably 75% by mass or less, even more preferably 65% ​​by mass or less, and even more preferably 60% by mass or less. That is, the water content in the conditioning composition of the present invention is preferably 20% by mass or more and 85% by mass or less, more preferably 30% by mass or more and 75% by mass or less, even more preferably 40% by mass or more and 65% by mass or less, and still more preferably 45% by mass or more and 60% by mass or less.

[0076] The conditioning composition of the present invention may be in the form of, for example, a paste, a cream, or a gel.

[0077] The conditioning composition of the present invention can be produced by a conventional method. For example, it can be produced by heating and stirring the oily component, then heating and stirring the water-soluble component, and then thoroughly stirring the oily component mixture and the water-soluble component mixture using a homogenizer, followed by cooling. It is preferable to obtain the conditioning composition by stirring and emulsifying the mixture using a homogenizer at a temperature equal to or higher than the melting point of component (A), and then cooling.

[0078] [Method for conditioning hair or fibers for head accessories] The method for conditioning hair or fibers for head accessories of the present invention comprises carrying out the following step (I) and then step (II).

[0079] Step (I): A step of applying a water-in-oil hair conditioning composition or a water-in-oil fiber conditioning composition for head accessories, which contains the following component (A) and has a viscosity at 30°C of 5,000 Pa·s or more and 700,000 mPa·s or less, to hair or fibers for head accessories. (A) A solid fat having a melting point of 40°C or higher Step (II): Heating the hair or hair accessory fiber to 60°C or higher and 240°C or lower

[0080] <Process (1)> This step is a step of applying the conditioning composition of the present invention to hair, etc. The conditioning composition of the present invention is easy to spread on hair, etc. and does not cause a sticky feeling on hair, etc., and therefore has excellent operability and can be smoothly applied to the entire hair, etc. Methods for applying the conditioning composition of the present invention to hair or the like include, for example, a method of applying or casting the conditioning composition onto hair or the like, and a method of immersing hair or the like in the conditioning composition. Among these, a method of applying the conditioning composition to hair or the like is preferred. In this case, the composition may be applied to hair or the like by hand, spread or massaged, or may be applied using a brush, comb, or the like. Specific aspects of the component (A) and viscosity contained in the conditioning composition used in step (I), as well as other aspects, are as explained above.

[0081] The hair to which the conditioning composition is applied may be wet or dry, but dry hair is preferred, and washed and dried hair is more preferred. The application site may be the entire hair or a part of it.

[0082] The amount of the conditioning composition applied to hair, etc., expressed as a liquor ratio to the mass of hair, etc. to which it is applied (mass of conditioning composition / mass of hair, etc. to which it is applied), is preferably 0.001 or more, more preferably 0.005 or more, even more preferably 0.01 or more, and preferably 5 or less, more preferably 2 or less, even more preferably 1 or less, even more preferably 0.5 or less, even more preferably 0.2 or less, and even more preferably 0.1 or less. That is, the liquor ratio is preferably 0.001 or more and 5 or less, more preferably 0.005 or more and 5 or less, even more preferably 0.01 or more and 2 or less, even more preferably 0.01 or more and 1 or less, still more preferably 0.01 or more and 0.5 or less, even more preferably 0.01 or more and 0.2 or less, and even more preferably 0.01 or more and 0.1 or less.

[0083] After this step, the hair, etc. may be washed or not before step (II) is carried out, but it is preferable not to wash the hair, etc. in order to better exert the effects of the present invention.

[0084] <Process (II)> This step involves heating hair or the like to a temperature of 60°C or higher and 240°C or lower. This causes component (A) in the conditioning composition of the present invention to melt due to the heat, and the molten component (A) uniformly coats and smooths the surface of hair or the like, improving combability of hair or the like after application and styling with heat. Furthermore, since friction between hair or the like is reduced, hair or the like becomes easier to manage and the settability of hair or the like improves. Furthermore, even if hair or the like is repeatedly subjected to heat treatment, combability of hair or the like after rinsing and drying is unlikely to deteriorate.

[0085] The hair can be heated using high-temperature heating tools such as a hair dryer, curling iron, or hair iron, or two or more of these may be combined. For example, a hair dryer may be used followed by a hair iron. When heating the hair, the hair may be continuously combed with hands or a comb to prevent tangling. The hair may be dried while being heated, or pre-dried hair may be heated.

[0086] The heating temperature is 60° C. or higher and 240° C. or lower, but from the viewpoint of preventing damage to hair, etc., it is preferably 200° C. or lower, more preferably 180° C. or lower, and preferably 150° C. or lower. That is, the heating temperature is preferably 60° C. or higher and 200° C. or lower, more preferably 60° C. or higher and 180° C. or lower, and even more preferably 60° C. or higher and 150° C. or lower. The heating time is preferably 0.1 second or longer, more preferably 0.5 second or longer, and even more preferably 1 second or longer, from the viewpoint of improving setting ability, and is preferably 20 minutes or shorter, more preferably 10 minutes or shorter, and even more preferably 5 minutes or shorter, from the viewpoint of preventing damage to hair, etc. That is, the heating time is preferably 0.1 seconds or longer and 20 minutes or shorter, more preferably 0.5 seconds or longer and 10 minutes or shorter, and even more preferably 1 second or longer and 5 minutes or shorter. [Example]

[0087] 1. Melting Point Measurement Using a differential scanning calorimeter (DSC) (Hitachi High-Tech Science, DSC7000X), the sample was sealed in an aluminum pan, held at -10°C for 10 minutes, and then heated to 90°C at a rate of 3°C / min, at which point the temperature of the most endothermic peak was measured.

[0088] 2. Viscosity measurement The composition was kept at 30°C for 30 minutes to adjust the temperature, and the values ​​measured under the following conditions were used. (1) Viscosity less than 1,000 mPa·s The viscosity was measured using a TVB10M viscometer (manufactured by Toki Sangyo Co., Ltd.: rotor: M-1, 6 rpm, 60 sec, 30°C). (2) Viscosity is 1,000 mPa·s or more but less than 5,000 mPa·s The viscosity was measured using a TVB10M viscometer (manufactured by Toki Sangyo Co., Ltd.: rotor: M-3, 12 rpm, 60 sec, 30°C). (3) Viscosity is 5,000 mPa·s or more but less than 40,000 mPa·s The viscosity was measured using a TVB10M viscometer (manufactured by Toki Sangyo Co., Ltd., rotor: M-4, 12 rpm, 60 sec, 30°C). (4) Viscosity is 40,000 mPa·s or more but less than 400,000 mPa·s The viscosity was measured using a TVB10R viscometer (manufactured by Toki Sangyo Co., Ltd., equipped with a T-BARSTAGE (MODEL: TS-10), rotor: TD, at 5 rpm, 60 seconds, and 30°C. (5) Viscosity is 400,000 mPa·s or more The viscosity was measured using a TVB10R viscometer (manufactured by Toki Sangyo Co., Ltd., equipped with a T-BARSTAGE (MODEL: TS-10), rotor: TD, at 5 rpm, 60 seconds, and 30°C.

[0089] 3. Evaluation The water-in-oil hair conditioning compositions obtained in each Example and Comparative Example were applied to a hair tress for evaluation, and after application, five expert panel members agreed to evaluate the hair tress for evaluation in accordance with the following procedures and criteria.

[0090] (Hair bundle for evaluation) Hair bundles measuring 30 cm in length, 15 cm in width, and 10 g in weight were prepared using Chinese hair (clearly not straight, not very curly) with no history of chemical treatment, and were bleached once with bleach (Ordeve Addicthy, manufactured by Milbon Co., Ltd., a mixture of Part 1 and Part 2 in a 1:3 ratio, applied at a bath ratio of hair:bleach = 1:3, and left to stand for 30 minutes in a laboratory atmosphere (25°C, relative humidity 45%RH). The hair bundles were wetted with 40°C tap water for 30 seconds, then the evaluation shampoos listed below were applied, lathered for 30 seconds, and rinsed with 40°C tap water for 30 seconds. Next, the conditioner for evaluation was applied, rinsed with 40°C tap water for 30 seconds, towel dried, and then passed through a resin comb (42 teeth, 1mm spacing between teeth, 17mm tooth length) and allowed to air dry for 12 hours in a laboratory atmosphere at a room temperature of 25°C and a relative humidity of 45%RH. This was then used as the hair bundle for evaluation.

[0091] Evaluation shampoo (mass%) Lauramide DEA (Aminone L-02, manufactured by Kao Corporation) 1.50 Sodium laureth sulfate (Emal 227, Kao Corporation) 15.5 Sodium benzoate (Fushimi Pharmaceutical Co., Ltd.) 0.50 EDTA-2Na (Clewat N, Nagase & Co., Ltd.) 0.30 Phosphoric acid (food additive 75% phosphoric acid, manufactured by Nippon Chemical Industry Co., Ltd.) 0.07 Remaining purified water 100

[0092] Evaluation conditioner (mass%) Cetearyl alcohol (Kalcol 6870, Kao Corporation) 2.00 Distearyldimonium chloride (Cortamin D86P, manufactured by Kao Corporation) 2.70 Steartrimonium chloride (Cortamine 86W, manufactured by Kao Corporation) 0.76 Propylene glycol (propylene glycol (external specifications), manufactured by AGC) 5.00 Methylparaben (Mekxance-M, Ueno Pharmaceutical Co., Ltd.) 0.01 Remaining purified water 100

[0093] (1) When applying: Ease of spreading onto hair 0.3 g of the hair conditioning composition was applied to a hair bundle for evaluation, and the hair bundle was run through with a manual comb 10 times to evaluate the ease of spreading the composition over the entire hair bundle according to the following criteria by five expert panelists. The average score of the five panelists was then calculated.

[0094] (Evaluation criteria) Rating 5: Easier to spread than Example 1 4: Slightly easier to spread than Example 1 3: Ease of spreading is the same as in Example 1 2: Slightly harder to spread than Example 1 1: Harder to spread than Example 1

[0095] (2) Upon application: Less stickiness on hair 0.3 g of the hair conditioning composition was applied to a hair bundle for evaluation, and the composition was spread over the entire hair bundle by running a manual comb through it 10 times. Five expert panelists then evaluated the hair for stickiness according to the following criteria, and the average score of the five panelists was calculated.

[0096] (Evaluation criteria) Rating 5: Hair is less sticky than in Example 1 4: Hair is slightly less sticky than in Example 1 3: Hair is less sticky than in Example 1 2: Hair is slightly stickier than in Example 1 1: Hair is stickier than in Example 1

[0097] (3) Immediately after heating: Combability when hair is styled with heat 0.3 g of the hair conditioning composition was applied to a hair bundle to be evaluated, and the composition was spread over the entire hair bundle by running a manual comb through it 10 times. The hair was then dried for 5 minutes using a hair dryer (Panasonic, EH-CNA99, dry mode, hair surface temperature 60°C) while gently running the comb through (without tension). After running the manual comb through the hair bundle 10 times, a resin comb (42 teeth, 1 mm spacing between teeth, 17 mm tooth length) was run through the hair bundle from root to tip, and the combability of the hair was evaluated by five expert panelists according to the following criteria. The average score of the five panelists was then calculated.

[0098] (Evaluation criteria) Rating 5: Better combability than Example 1 4: Slightly better combability than Example 1 3: Combing ability is the same as in Example 1 2: Combing is slightly worse than in Example 1 1: Poor combability compared to Example 1

[0099] (4) Immediately after heating: Hair settability when heat is applied to hair. 0.3 g of the hair conditioning composition was applied to a hair bundle to be evaluated, and the composition was spread over the entire hair bundle by running a manual comb through it 10 times. The hair was then dried for 5 minutes using a hair dryer (Panasonic, EH-CNA99, dry mode, hair surface temperature 60°C) while gently running the comb through (without tension). Next, the hair bundle was run through once using a resin comb (42 teeth, 1 mm spacing between teeth, 17 mm tooth length), and the manageability of the entire hair bundle was evaluated by five expert panelists according to the following criteria. The average score of the five panelists was then calculated.

[0100] (Evaluation criteria) Rating 5: The entire hair bundle is more organized than in Example 1 4: The hair bundle is slightly more tidy than in Example 1 3: The overall hair bundle is as well organized as in Example 1 2: The overall hair bundle is slightly less manageable than in Example 1 1: The overall hair bundle is less cohesive than in Example 1

[0101] (5) After repeated heat treatment: Hair damage suppression effect (less deterioration in hair combability after washing and drying). As an index of the degree of hair damage after repeated heat treatment, the deterioration of combability of hair after washing and drying was used and evaluated as follows. 0.3 g of the hair conditioning composition was applied to a hair bundle for evaluation, and the composition was spread over the entire hair bundle by combing it ten times with a hand. The hair bundle was then dried for 5 minutes with a hair dryer (Panasonic, EH-CNA99, dry mode, hair surface temperature 60°C) while gently combing (without tension). Next, a resin comb (42 teeth, 1 mm tooth spacing, 17 mm tooth length) was passed through the hair bundle once, followed by a straightening iron (Crate, S893M) set at 180°C clamped near the root of the hair bundle and swiped from the root to the tip at a speed of 3 cm / sec six times. The hair bundle was then washed with the evaluation shampoo using the same procedure as when preparing the hair bundle for evaluation, and dried for 5 minutes with a hair dryer while gently combing (without tension). The combability of the hair bundle after 20 repetitions of the above procedure was compared with that of the untreated hair bundle, and five expert panelists evaluated the combability according to the following criteria. The average score of the five participants was then calculated.

[0102] (Evaluation criteria) Rating 5: No deterioration in combability (same as untreated hair) 4: Higher effect of suppressing deterioration of combability than Example 1 3: The effect of suppressing deterioration of combability is the same as in Example 1 2: Slightly less effective in inhibiting deterioration of combability than Example 1 1: Less effective in inhibiting deterioration of combability than Example 1

[0103] <Examples 1 to 13 and Comparative Example 1> As shown in Table 1 <Manufacturing method> Oily components (A), (B), (C), and (D) were heated to 85°C and mixed with stirring. After confirming a clear solution, component (E) was added and stirred for 5 minutes to obtain an oily component mixture. Next, the aqueous component (other components listed in Table 1) was heated to 85°C and mixed with stirring. After confirming a clear solution, an aqueous component mixture was obtained. The aqueous component mixture was then added to the oily component mixture, and the mixture was stirred at 10,000 rpm for 20 minutes using a homomixer (Primix Corporation, Labo-lution, Homomixer MARK II 2.5). The mixture was then cooled to 30°C at 1°C / min while stirring and mixing using a mixer (Shinto Scientific Co., Ltd., BLH300, 50 rpm) to obtain a hair conditioning composition. The hair conditioning composition was then evaluated. The results are shown in Table 1.

[0104] [Table 1]

[0105] From Table 1, it can be seen that by incorporating a solid oil having specific properties and controlling the viscosity within a specific range, a conditioning composition can be obtained that is easy to spread on hair when applied, reduces stickiness on the hair, provides good combability and settability after styling by applying heat after application, and is unlikely to impair combability after repeated application of heat, washing, and drying.

Claims

1. A water-in-oil hair conditioning composition or a water-in-oil fiber conditioning composition for head accessories, comprising the following component (A) and having a viscosity at 30°C of 5,000 mPa·s or more and 700,000 mPa·s or less: (A) A solid fat having a melting point of 40°C or higher

2. 2. The water-in-oil hair conditioning composition or the water-in-oil fiber conditioning composition for head accessories according to claim 1, further comprising 0.1% by mass or more and 10% by mass or less of the following component (B): (B) a nonionic surfactant having an HLB value of 2 or more and 6 or less according to the Griffin method

3. 3. The water-in-oil hair conditioning composition or the water-in-oil fiber conditioning composition for head accessories according to claim 2, wherein the mass ratio of component (A) to component (B) [(A) / (B)] is 0.01 or more and 10 or less.

4. 3. The water-in-oil hair conditioning composition or the water-in-oil fiber conditioning composition for head accessories according to claim 1 or 2, further comprising the following component (C): (C) Thickening polysaccharides

5. 5. The water-in-oil hair conditioning composition or the water-in-oil fiber conditioning composition for head accessories according to claim 4, wherein component (C) is a nonionic polysaccharide.

6. 6. The water-in-oil hair conditioning composition or the water-in-oil fiber conditioning composition for head accessories according to claim 5, wherein component (C) is a nonionic polysaccharide having an alkyl or alkenyl group and having 8 to 22 carbon atoms.

7. 3. The water-in-oil hair conditioning composition or water-in-oil fiber conditioning composition for head accessories according to claim 1, wherein the content of component (A) is 0.1% by mass or more and 30% by mass or less.

8. 3. The water-in-oil hair conditioning composition or the water-in-oil fiber conditioning composition for head accessories according to claim 1, wherein component (A) is one or more selected from the group consisting of ceramides, sphingosines, and waxes.

9. 3. The water-in-oil hair conditioning composition or the water-in-oil fiber conditioning composition for head accessories according to claim 1 or 2, further comprising the following component (D): (D) An oil solution that is liquid at 30°C

10. 3. The water-in-oil hair conditioning composition or the water-in-oil fiber conditioning composition for head accessories according to claim 1 or 2, further comprising the following component (E): (E) Powder

11. A method for conditioning hair or fibers for head accessories, comprising carrying out the following step (I) and then step (II): Step (I): A step of applying a water-in-oil hair conditioning composition or a water-in-oil fiber conditioning composition for head accessories, which contains the following component (A) and has a viscosity at 30°C of 5,000 mPa·s or more and 700,000 mPa·s or less, to hair or fibers for head accessories: (A) A solid fat having a melting point of 40°C or higher Step (II): Heating the hair or headwear fiber to a temperature of 60°C or higher and 240°C or lower

12. 12. The method for conditioning hair or fibers for head accessories according to claim 11, wherein after step (I) is performed, step (II) is performed without rinsing the hair or fibers for head accessories.

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