Hair compositions and aerosol products

Abstract

A hair composition that allows hair to be easily returned to its pre-styling, flexible state without the need for shampooing or washing with water after styling, and that has good slipperiness, making it easy to detangle the hair with fingers, and also allows for re-styling after detangling. [Solution] A hair composition comprising a cationic polymer, an oily component, and water, wherein the cationic polymer contains polyquaternium-6.

Description

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Technical Field

[0001] The present disclosure relates to hair compositions and aerosol products. For example, the present disclosure relates to a hair composition that can loosen hair styled with a hair styling product and easily return it to the soft hair before styling without the need for washing with shampoo or water.

Background Art

[0002] Hair styling products are used to style and fix hairstyles. To return hair fixed with a hair styling product to its soft state before styling, usually the hair styling product is washed off with shampoo and a large amount of water. However, there are problems such as the need to use a large amount of shampoo to sufficiently wash off the hair styling product, and cleaning agents and cleansing agents applied to the hair before shampooing have been developed. For example, in Patent Documents 1 to 3, high-cleaning-effect hair styling product cleaning agents and cleansing agents applied to the hair before shampooing are disclosed.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Patent Document 2

Patent Document 3

Summary of the Invention

Problems to be Solved by the Invention

[0004] However, in Patent Documents 1 to 3, as described above, after applying the cleaning agent, washing with ordinary shampoo and water is required. Such cleaning agents cannot meet the demand of wanting to return to soft hair before styling even in an environment where shampoo or water cannot be used. Furthermore, in order to apply cleansing agents to hair that has been styled and whose strands have been fixed in place, the ease with which one can run their fingers through the hair, or in other words, its slipperiness, is important from the perspective of how easily the hair can be loosened. This disclosure provides a hair composition that allows hair to be easily returned to its pre-styling, flexible state without the need for shampooing or washing with water after styling, has good slipperiness, makes it easy to detangle the hair with fingers, and allows for re-styling after detangling. [Means for solving the problem]

[0005] This disclosure relates to a hair composition, The hair composition contains a cationic polymer, an oily component, and water. The present invention relates to a hair composition in which the cationic polymer contains polyquaternium-6. [Effects of the Invention]

[0006] According to this disclosure, it is possible to provide a hair composition that allows hair to be easily returned to its original, flexible state after styling without the need for washing with shampoo or water, has good slipperiness, makes it easy to detangle the hair with fingers, and allows for re-styling after detangling. [Modes for carrying out the invention]

[0007] When a numerical range is expressed as "XX or greater and YY or less" or "XX to YY," unless otherwise specified, it means a numerical range that includes the lower and upper limits. When a numerical range is expressed in steps, the upper and lower limits of each range can be combined in any way.

[0008] The inventors first developed a method to remove the soft, unstyled texture from styled hair without the need for shampoo or water. We investigated ingredients that can easily restore hair to a soft state. The inventors focused on cationic polymers such as polyquaterniums and investigated how they loosen hair bundles when applied to hair after styling, as well as the flexibility of the hair bundles after application. They found that polyquaternium-6 is particularly effective among cationic polymers.

[0009] Furthermore, the inventors conducted further studies and found that the combination of polyquaternium-6 and an oily component improves not only the loosening of hair and the flexibility of the loosened hair, but also the smoothness of the hair when applied with fingers. The following describes each of the materials in the hair composition.

[0010] The hair composition contains a cationic polymer and an oily component. The cationic polymer contains polyquaternium-6. Polyquaternium-6 is a polymer of dimethyldiallylammonium chloride. Polyquaternium-6 makes it possible to reset a styled hairstyle and return the hair to its flexible state before styling. The inventors believe that polyquaternium-6 can make hair bundles more flexible by softening the resin film created by hair styling products.

[0011] The content of polyquaternium-6 in the hair composition is, for example, 0.2 to 10.0% by mass, preferably 0.5 to 7.0% by mass, more preferably 0.5 to 5.0% by mass, even more preferably 0.6 to 4.0% by mass, and even more preferably 0.6 to 1.5% by mass. This range makes it easier to make hair bundles more flexible. The weight-average molecular weight of polyquaternium-6 is preferably, for example, 120,000 to 500,000. The hair composition may contain other cationic polymers besides polyquaternium-6, to an extent that does not impair the effects of the present disclosure.

[0012] There are no particular restrictions on the oily components, and any known components may be used. Specifically, these include the following: Vegetable oils such as apricot kernel oil, camellia oil, argan oil, soybean oil, olive oil, castor oil, coconut oil, palm oil, palm kernel oil, sesame oil, jojoba oil, cottonseed oil, rapeseed oil, linseed oil, rosehip oil, sunflower oil, essential oils, avocado oil, almond oil, rice bran oil, safflower oil, corn oil, grapeseed oil, coconut oil, argania spisano kernel oil, wheat germ oil, rice germ oil, kukui nut oil, crambe abyssinica seed oil, hemp seed oil, peanut oil, sasanqua oil, evening primrose oil, pistachio oil, macadamia nut oil, meadowfoam oil, cocoa butter, shea butter, and Japanese wax; Animal fats such as emu oil, horse oil, beef tallow, pork tallow, mutton tallow, mink oil, egg yolk fat, carp tallow, tuna tallow, and menhideen tallow; Light isoparaffins, squalane, liquid paraffins, petrolatum, dodecane, tetradecane, ozokerite, microcrystalline wax, isoparaffins, ceresin, α-olefin oligomers, polybutene, hydrogenated polyisoparaffins, limonene, turpentine oil, and other hydrocarbon oils; Fatty acids (preferably with 6 to 40 carbon atoms, more preferably with 12 to 30 carbon atoms) such as lauric acid, myristic acid, palmitic acid, stearic acid, behenic acid, oleic acid, isostearic acid, behenic acid, oxystearic acid, palmitoleic acid, linoleic acid, linolenic acid, ricinoleic acid, and undecylenic acid; Higher alcohols such as caproyl alcohol, caprylyl alcohol, caprylic alcohol, lauryl alcohol, isostearyl alcohol, myristyl alcohol, cetanol, stearyl alcohol, arachidodecanol, behenyl alcohol, oleyl alcohol, hexyldecanol, octyldodecanol, decyltetradecanol, cholesterol, and phytosterols; Esters of linear fatty acids and lower alcohols such as isopropyl myristate, isopropyl palmitate, and ethyl oleate, Esters of linear fatty acids and linear higher alcohols such as hexyl laurate, myristyl myristate, decyl oleate, and stearyl stearate. Esters of linear fatty acids such as octyldodecyl myristate, isostearyl palmitate, and ethylhexyl stearate with branched-chain alcohols. Esters of branched fatty acids such as ethyl isostearate and isopropyl isostearate with lower alcohols. Esters of branched fatty acids such as cetyl ethylhexanoate and hexyl isostearate with linear higher alcohols, Esters of fatty acids and polyhydric alcohols such as PG dicaprylate, triethylhexanoin, and tri(caprylic / capric acid)glyceryl, Esters of branched fatty acids and branched alcohols, such as 2-octyldodecyl neopentanoate and isostearyl isostearate. Esters of hydroxycarboxylic acids such as lauryl lactate, trioctyldodecyl citrate, and diisostearyl malate with alcohols, Ester oils such as diisopropyl adipate and diethyl sebacate, which are esters of dibasic acids; Wax esters such as jojoba oil, jojoba fat, carnauba wax, candelilla wax, rice bran wax, shellac, lanolin, beeswax, montan wax, whale wax, orange roughy oil, sugarcane wax, palm wax, insect white wax, and wool fat; Other oily components include ethers of polyhydric alcohols and monohydric alcohols such as chymyl alcohol, batyl alcohol, and ceracyl alcohol; batyl isostearate, batyl stearate; and silicones such as alkyl-modified polysiloxanes (dimethylpolysiloxane (dimethicone)), methylphenylpolysiloxane, and fluorine-modified polysiloxane. Oily active ingredients such as UV absorbers (diethylamino hydroxybenzoyl hexyl benzoate, ethylhexyl methoxycinnamate, polysilicone-15), DEET, and fragrance.

[0013] Among them, the oily component preferably contains at least one selected from the group consisting of ester oils and oils having an isostearyl structure, and more preferably contains at least one selected from the group consisting of oils having an isostearyl structure. According to the study by the present inventors, the combination of polyquaternium-6 and an oil having an isostearyl structure makes it easier to highly balance the slipperiness evaluation when applied to hair, the looseness of the hair bundle, and the flexibility of the hair bundle after drying.

[0014] The ester oil is preferably at least one selected from the group consisting of ester compounds having a branched alkyl chain such as esters of linear fatty acids and branched alcohols and esters of branched fatty acids and lower alcohols.

[0015] Examples of the isostearyl structure include a branched alkyl group having 18 carbon atoms or a branched alkylcarbonyl group having 18 carbon atoms. Examples of the oil having an isostearyl structure include carboxylic acids having an isostearyl structure, alcohols having an isostearyl structure, ester compounds of carboxylic acids having an isostearyl structure and alcohols, and ester compounds of alcohols having an isostearyl structure and carboxylic acids.

[0016] The oil having an isostearyl structure is preferably at least one selected from the group consisting of isostearic acid, isostearyl alcohol, ester compounds of isostearic acid and alcohol (preferably aliphatic polyhydric alcohol), and ester compounds of isostearyl alcohol and carboxylic acid (preferably aliphatic polyhydric carboxylic acid). The alcohol or carboxylic acid in the ester compound is preferably 1 to 8 valent, and more preferably 1 to 6 valent. is more preferable.

[0017] The oil having an isostearyl structure is more preferably at least one selected from the group consisting of isostearic acid, isostearyl alcohol, and ester compounds of isostearic acid and aliphatic polyhydric alcohol. The aliphatic polyhydric alcohol is preferably divalent to octavalent, and more preferably 3valent to hexavalent. Examples of aliphatic polyhydric alcohols include at least one selected from the group consisting of glycerin, trimethylolpropane, pentaerythritol, and dipentaerythritol.

[0018] Examples of ester compounds include ester compounds of isostearic acid with alcohols having 1 to 20 carbon atoms, such as ethyl isostearate, isopropyl isostearate, hexyl isostearate, hexyldecyl isostearate, isostearyl isostearate, pentaerythristyl tetraisostearate, glyceryl triisostearate, and trimethylolpropane triisostearate.

[0019] The oil having an isostearyl structure is more preferably at least one selected from the group consisting of isostearic acid, isostearyl alcohol, pentaerythyl tetraisostearate, ethyl isostearate, isopropyl isostearate, hexyldecyl isostearate, isostearyl isostearate, glyceryl triisostearate, and trimethylolpropane triisostearate.

[0020] The content of the oil having an isostearyl structure in the hair composition is, for example, 0.2 to 15.0% by mass, preferably 0.5 to 10.0% by mass, and more preferably 0.7 to 7.0% by mass. This range makes it easier to obtain slipperiness when applied to hair. The hair composition may contain other oily components besides the oil having an isostearyl structure, to the extent that it does not impair the effects of the disclosed herein.

[0021] Oily components are, for example, insoluble in water (they undergo phase separation with water). "Insoluble in water" means, for example, that the solubility in 100g of water at 25°C is 1.0g or less. Preferably, the oily components are liquid at 25°C.

[0022] The hair composition contains water. The water content in the undiluted solution is not particularly limited and can be appropriately selected considering the purpose of the hair composition. The water content in the stock solution is, for example, 50.0% to 99.5% by mass, preferably 80.0% to 99.0% by mass, more preferably 90.0% to 99.0% by mass, and even more preferably 92.0% to 98.0% by mass.

[0023] The hair composition may contain a nonionic surfactant. The HLB of the nonionic surfactant is, for example, 11.0 to 15.0, preferably 11.0 to 13.0. The HLB value is an index that represents the ratio of the relative affinity of a surfactant to both liquids in an oil-water system, and refers to the HLB value at 25°C according to Griffin's definition. In this disclosure, if a catalog value is available, the catalog value will be used as the HLB value.

[0024] Nonionic surfactants include polyglycerin fatty acid esters such as pentagglyceryl monolaurate, pentagglyceryl monomyristate, pentagglyceryl monooleate, pentagglyceryl monostearate, hexaglyceryl monolaurate, hexaglyceryl monomyristate, decaglyceryl monolaurate, decaglyceryl monomyristate, decaglyceryl monooleate, and decaglyceryl distearate, as well as POE(20) Polyoxyethylene sorbitan fatty acid esters such as sorbitan monolaurate, POE(20) sorbitan monopalmitate, POE(20) sorbitan monostearate, POE(20) sorbitan monooleate, POE(20) sorbitan monoisostearate, polyethylene glycol fatty acid esters such as POE(25) monostearate, PEG-20 sorbitan cocoate, POE(9) lauryl ether, POE(15) cetyl ether, POE(20) cetyl ether, POE(10) oleyl ether, POE(15) oleyl ether Polyoxyethylene alkyl ethers such as POE(20) oleyl ether and POE(20) behenyl ether, polyoxyethylene polyoxypropylene alkyl ethers such as POE(20) POP(4) cetyl ether, polyoxyethylene sorbitol fatty acid esters such as POE(60) sorbitol tetrastearate, POE(60) sorbitol tetraoleate, and POE(6) sorbitol monolaurate, and polyoxyethylene glycerin such as POE(15) glyceryl monostearate and POE(15) glyceryl monooleate. Fatty acid esters, POE(40) castor oil, POE(20) hydrogenated castor oil, POE(40) hydrogenated castor oil (PEG-40 hydrogenated castor oil), POE(50) hydrogenated castor oil, POE(60) castor oil, POE(60) hydrogenated castor oil, POE(80) hydrogenated castor oil, POE(100) hydrogenated castor oil, and other polyoxyethylene castor oils, polyoxyethylene lanolin alcohols such as POE(10) lanolin alcohol, POE(20) lanolin alcohol, POE(40) lanolin alcohol, sorbitan monolaurate Sorbitan fatty acid esters such as sorbitan monopalmitate, sorbitan monostearate, sorbitan sesquistearate, sorbitan monooleate, sorbitan sesquioleate, sorbitan trioleate, glycerin fatty acid esters such as glyceryl monostearate, glyceryl monomyristate, diglycerin fatty acid esters such as diglyceryl monostearate, diglyceryl monooleate, diglyceryl monoisostearate, triglyceryl monolaurate, triglyceryl monomyristate, triglyceryl monooleate,Triglycerin fatty acid esters such as triglyceryl monostearate, tetraglycerin fatty acid esters such as tetraglyceryl monostearate and tetraglyceryl monooleate, pentagricerin fatty acid esters such as pentagriceryl trimiristate and pentagriceryl trioleate, hexaglycerin fatty acid esters such as hexaglyceryl monooleate, hexaglyceryl monostearate, and hexaglyceryl tristearate, and decaglyceryl monostearate, decaglyceryl distearate, decaglyceryl Polyglycerin fatty acid esters such as lyl diisostearate, decaglyceryl dioleate, decaglyceryl trioleate, decaglyceryl trioleate, etc., polyglycerin fatty acid esters such as PEG-7 glyceryl cocoate, POE(5) glyceryl monostearate, etc., sorbeth-30 tetraoleate, POE(20) sorbitan trioleate, POE(20) sorbitan trioleate, POE(6) sorbitan monostearate, POE(6) sorbitan monooleate Polyoxyethylene sorbitan fatty acid esters such as POE(6) sorbitol tetraoleate, POE(30) sorbitol tetraoleate, polyethylene glycol fatty acid esters such as POE(10) monolaurate, POE(10) monostearate, POE(40) monostearate, POE(55) monostearate, POE(10) monooleate, POE(21) ​​lauryl ether, POE(2) cetyl ether, POE(10) cetyl ether, POE(25) Polyoxyethylene alkyl ethers such as cetyl ether, POE(20)POP(8) cetyl ether, POE(20) stearyl ether, POE(7) oleyl ether, POE(50) oleyl ether, POE(10) behenyl ether, POE(20) behenyl ether, POE(30) behenyl ether, polyoxyethylene polyoxypropylene alkyl ethers such as POE(20)POP(8) cetyl ether, POE(30)POP(6) decyltetradecyl ether, alkyl glucosides such as lauryl glucoside,Lipids such as coconut oil fatty acid diethanolamide, Examples include fatty acid alkylolamides, alkyldimethylamine oxide solutions such as lauryldimethylamine oxide solution, and pyrrolidone carboxylic acid (PCA) esters such as PEG-40 hydrogenated castor oil PCA isostearate and PEG-60 hydrogenated castor oil PCA isostearate.

[0025] Other examples include polyoxyethylene glycerin fatty acid esters such as polyoxyethylene glyceryl monooleate, polyoxyethylene glyceryl monomyristate, polyoxyethylene glyceryl monostearate, polyoxyethylene glyceryl monoisostearate, polyoxyethylene glyceryl diisostearate, and polyoxyethylene glyceryl triisostearate. The number of moles of ethylene oxide added is preferably 5 to 60, and more preferably 10 to 30.

[0026] The content of nonionic surfactants in hair compositions is not particularly limited and can be appropriately changed depending on the amount of oily components, but is preferably 0.1 to 10.0% by mass or 0.5 to 5.0% by mass.

[0027] The hair composition may form an emulsion. The hair composition may be an oil-in-water (O / W) emulsion in which an oil phase containing an oily component is dispersed in an aqueous phase containing water, or a water-in-oil (W / O) emulsion in which an aqueous phase containing water is dispersed in an oil phase containing an oily component. The hair composition is preferably an oil-in-water (O / W) emulsion.

[0028] The hair composition may contain optional ingredients other than those described above, to the extent that they do not impair the above-mentioned effects. Examples of optional ingredients include active ingredients, fragrances, antioxidants, preservatives, pH adjusters, chelating agents, oils and fats, silicones, thickeners, humectants, disinfectants, skin protectants, vitamins, various extracts, deodorizers, cooling agents, UV absorbers, UV scatterers, insect repellents, and insecticides. The proportion of optional ingredients is determined appropriately based on the intended use of the composition.

[0029] Optional components include, for example, the following: Cooling agents (menthol, camphor, etc.); pH adjusters (e.g., citric acid, sodium citrate, lactic acid, triethanolamine, KOH, NaOH, etc.); rust inhibitors (e.g., ammonia water, ammonium benzoate, sodium nitrite, etc.); preservatives (e.g., parabens, phenoxyethanol, methyl parahydroxybenzoate); urea; minerals such as calcium, iron, and sodium; pigments; dyes; chelating agents such as EDTA-2Na, etc.

[0030] The hair composition may optionally contain known hair conditioning ingredients. Examples of hair conditioning ingredients include bis-diisopropanolamino PG-propyl (disiloxane / bis-vinyl dimethicone) copolymer. The hair conditioning component content in the hair composition is preferably 0.1 to 10.0% by mass or 0.5 to 5.0% by mass.

[0031] The hair composition is, for example, a composition for loosening styled hair, and more specifically, a composition for loosening styled hair and restoring (resetting) it to its original flexibility. The styled hair is, for example, hardened with a resin film. The hair composition is preferably a composition for loosening hair styled with a hair styling product containing a resin capable of forming a resin film and restoring it to its original flexibility. It is also possible to loosen the hair using the hair composition and then restyle it again with hairspray or the like. Furthermore, the hair composition can also be used as a pre-shampoo.

[0032] The hair composition can be applied to hair styled with a hair styling product. The hair styling product is not particularly limited, however Hair styling products that use a resin film are preferred. Resins capable of forming a resin film include at least one selected from the group consisting of anionic resins and amphoteric resins. Specifically, resins that can form a resin film include, for example, at least one selected from the group consisting of (meth)acrylic copolymers, polyvinylpyrrolidone, and polyvinyl acetate. At least one resin selected from the group consisting of (meth)acrylic copolymers is preferred for forming the resin film.

[0033] (Meth)acrylic copolymers are copolymers of monomers that include, for example, at least one selected from the group consisting of (meth)acrylic acid; alkyl (meth)acrylate esters; acrylamides such as acrylamide and diacetone acrylamide; and (meth)acrylic acid esters such as ethyl (meth)acrylate betaine and hydroxyalkyl (meth)acrylate esters.

[0034] Examples of (meth)acrylic copolymers include acrylates copolymer AMP, (acrylates / alkyl(C1-18) acrylate / alkyl(C1-8) acrylamide) copolymer AMP, (acrylates / diacetone acrylamide) copolymer AMP, (octylacrylamide / acrylates / butylaminoethyl methacrylate) copolymer, (ethyl betaine methacrylate / acrylates) copolymer, and (ethyl betaine methacrylate / acrylates) copolymer.

[0035] The means by which the hair composition is applied to the hair are not particularly limited, as long as the composition can be made to adhere to the hair. From the viewpoint of uniform application to the hair, it is preferable to spray the hair composition onto the hair. In other words, it is preferable that the hair composition be a spray composition. By making the hair composition adhere to the hair and then loosening it with, for example, your fingers, the styled hair can be easily reset.

[0036] The hair composition is not particularly limited and can be applied to known spray products. This disclosure provides a spray product in which a hair composition is filled into a spray container. The spray product can be any product that can dispense its contents in a spray or mist form from an outlet such as a valve. It may be sprayed using a high-pressure gas such as compressed gas, or it may be sprayed electrically or manually. The spray container used in the spray product is not particularly limited and includes known aerosol containers, pump spray containers, trigger spray containers, pump dispensers, and trigger dispensers. An aerosol container is preferred.

[0037] The hair composition is preferably an aerosol composition. An aerosol product using the hair composition will be described. The aerosol product has a container filled with the aerosol composition and a dispensing mechanism provided in the container for dispensing the aerosol composition. Furthermore, this disclosure provides an aerosol product in which the above-mentioned hair composition and a propellant are filled as an aerosol composition in an aerosol container.

[0038] Aerosol containers used for aerosol products can be various known pressure-resistant containers made of resin, metal, glass, etc. Furthermore, the structure for mounting a valve device can be appropriately selected depending on the type of pressure-resistant container. The dispensing mechanism is also not particularly limited and known ones can be used. The dispensing mechanism includes, for example, a valve device and an actuator. Furthermore, the structure for mounting a valve device can be appropriately selected depending on the type of pressure-resistant container.

[0039] Aerosol products are manufactured by filling an aerosol composition, which is a hair composition, into an aerosol container, i.e., a pressure-resistant container equipped with an aerosol valve (spray valve). For example, an aerosol product is manufactured by preparing an aerosol composition and filling the resulting aerosol composition and propellant into an aerosol container. Further contents inside the pressure-resistant container A so-called double container may be used, in which a container is provided to separate the propellant and the aerosol composition with an inner container. For liquefied gases, the preferred mixing ratio of the aerosol composition to the propellant is approximately 70 / 30 to 35 / 65 by mass (aerosol composition / propellant). For compressed gases, the preferred mass ratio is approximately 99.9 / 0.1 to 98 / 2 by mass (aerosol composition / propellant).

[0040] The discharge form of the aerosol product is not particularly limited, but it is preferably in the form of a spray or mist. The discharge mechanism of the aerosol product is also not particularly limited, and a known actuator capable of spraying or misting can be used. For example, the aerosol composition passes through a flow path inside the actuator, generating a swirling flow of the aerosol composition, which is then discharged in the form of a spray or mist.

[0041] The aerosol product contains a hair composition and a propellant. The propellant is not particularly limited and any known propellant usable in aerosol products can be used. Liquefied gas or compressed gas may be used, or a combination of liquefied and compressed gases may be used. The propellant preferably contains liquefied gas. The propellant content is not particularly limited and can be appropriately changed depending on the purpose of the aerosol product.

[0042] The liquefied gas is not particularly limited and includes, for example, liquefied petroleum gas (LPG) containing propane, butane, or similar substances, as well as hydrocarbons such as LNG and isopentane; organofluorine compounds such as hydrofluoroolefins and hydrochlorofluoroolefins; and dimethyl ether (DME). Liquefied petroleum gas (LPG) and dimethyl ether (DME) are preferred. The compressed gas is not particularly limited and includes, for example, carbon dioxide, nitrogen gas, nitrous oxide gas, argon, helium, and compressed air. Preferably, it is at least one selected from the group consisting of carbon dioxide and nitrogen gas.

[0043] There are no particular restrictions on the pressure (gauge pressure) inside the container of an aerosol product. The propellant should be filled into the aerosol container such that the pressure (gauge pressure) inside the container when filled is, for example, 1 MPa or less at 25°C.

[0044] The method for manufacturing the hair composition and aerosol product is not particularly limited. For example, the following method can be used. The hair composition can be obtained by mixing the above-mentioned components and any optional components in any proportion.

[0045] Furthermore, aerosol products can be manufactured as follows: First, the above-mentioned components are mixed in any proportion to obtain a hair composition. The obtained hair composition and propellant are filled into a pressure-resistant container to obtain an aerosol product filled with the hair composition, which is an aerosol composition. [Examples]

[0046] The present disclosure will be described in detail below with reference to the following embodiments. However, the present disclosure is not limited to the embodiments described below.

[0047] The inventors investigated a cationic polymer that can easily return styled hair to its original, flexible state. Specifically, they used MERQUAT 100, manufactured by Lubrizol Japan Co., Ltd., as the polyquaternium-6, to prepare an aqueous solution containing 0.50% by mass of polyquaternium-6. They then evaluated the ease of combing with fingers, the ease of loosening hair bundles, and the flexibility of hair bundles after drying. When using polyquaternium-6, combing with fingers was difficult, but good results were obtained for both hair bundle loosening and the flexibility of hair bundles after drying. The inventors also evaluated polyquaternium-7 and polyquaternium-22 in a similar manner, but did not obtain the same favorable results as with polyquaternium-6, and the hair bundles remained stiff after being loosened. Ta.

[0048] The hair bundles used for evaluation were "Beaulux Human Hair Black Hair (Root Aligned) Product Number: BS-B3A (10g, 30cm)," which were trimmed to 2.0g and 25cm in length. 5.0g of hair styling product 1 (aerosol hair styling product that can be sprayed) according to the formulation (mass%) in Table 1 was uniformly sprayed onto the prepared hair bundles to create styled hair bundles. The undiluted solution consists of (acrylates / octylacrylamide) copolymer, AMP, and ethanol. The button used was "D94W0422N“3”-A (Mitani Valve Co., Ltd.)."

[0049] [Table 1] Amphomer HC: Manufactured by Nourion Japan Co., Ltd. AMP ULTRA PC 1000: Manufactured by Advance Corporation AMP is 2-amino-2-methyl-1-propanol.

[0050] For styled hair strands, 1 mL of an aqueous solution of the polyquaternium to be evaluated was applied, and the hair was run through 10 times with fingers to evaluate the ease of finger-combing and the degree of hair strand separation. Furthermore, after evaluating the loosening of the hair bundles, the bundles were left to dry at room temperature for 30 minutes, and the stiffness of the hair bundles after drying was checked.

[0051] Next, the inventors investigated combinations of polyquaternium-6 and other components that would improve not only hair detangling and the flexibility of the detangled hair, but also the smoothness of the hair when applied.

[0052] <Examples 1-5, Comparative Examples 1 and 2> Each raw material was mixed to obtain a hair composition according to the formulation (mass %) shown in Table 2. Each obtained hair composition was evaluated for its ability to be combed with fingers, its ability to separate hair strands, and the flexibility of the hair strands after drying. The evaluation results are shown in Table 2. The evaluation procedure was as follows.

[0053] Following the procedure described above, hair bundles styled with hair styling product 1 were treated with 1 mL of each hair composition from Table 2. The hair was then run through with fingers 10 times to evaluate the ease of combing and the ease of detangling the hair bundles. For the ease of combing, a score of A or higher was considered a pass, and for the ease of detangling, a score of B or higher was considered a pass. The evaluation criteria are as follows: (Evaluation Criteria) <The smoothness of running your fingers through your hair> A: Easy to run your fingers through. B: It's difficult to run your fingers through your hair. <Hair strands loosening> A: The clumps of hair become softer and more fine. B: The clumps of hair become softer, but they don't become as fine. C: The hair strands are less likely to become soft and less likely to become fine.

[0054] Furthermore, after evaluating the loosening of the hair strands, the strands were left to dry at room temperature for 30 minutes. The flexibility of the dried hair strands was then evaluated according to the following criteria, with a score of C or higher being considered acceptable. A score of C or higher indicates that the hair can be restyled. The evaluation results are shown in Table 2. (Evaluation Criteria) A: There are few clumps of hair, and the entire hair bundle is soft. B: There are some clumps of hair, but the hair as a whole is soft. C: There are some clumps of hair, and the entire bundle of hair is slightly stiff. D: There are clumps of hair throughout, and the entire hair is stiff.

[0055] In examples where polyquaternium-6 and an oily component were used in combination, the evaluation of how easily the hair could be combed with a finger, how easily the hair strands could be separated, and the flexibility of the hair strands after drying were all good. In particular, in Examples 1 to 3, which used an oil containing an isostearyl structure, the flexibility of the hair strands after drying was especially good, demonstrating a high level of balance between the evaluation of how easily the hair could be combed with a finger, how easily the hair strands could be separated, and the flexibility of the hair strands after drying. It is thought that oils containing an isostearyl structure are less likely to inhibit the hair-softening effect of polyquaternium-6.

[0056] [Table 2]

[0057] The materials used are as follows: MERQUAT 100: Polyquaternium-6 (manufactured by Lubrizol Japan Co., Ltd.) Isostearic Acid EX: Isostearic Acid (Higher Alcohol Industry Co., Ltd.) Isostearyl Alcohol EX: Isostearyl Alcohol (Higher Alcohol Industry Co., Ltd.) KAK PTI: Pentaerythritol Tetraisostearate (Higher Alcohol Industry Co., Ltd.) NIKKOL IOP: Ethylhexyl palmitate (Nikko Chemicals Co., Ltd.) NIKKOL CIO: Cetyl Ethylhexanoate (Nikko Chemicals Co., Ltd.)

[0058] <Examples 6-12> Next, we evaluated aerosol products filled with the hair composition. First, we mixed each ingredient to obtain the hair composition according to the formulation (mass%) shown in Table 3. Furthermore, 40g each of the obtained hair composition (55.0% by mass) and LPG (45% by mass) as a propellant were filled into pressure-resistant containers (100mL glass test bottles for aerosols) to obtain aerosol products filled with each of the hair compositions of Examples 6 to 12. A button capable of spraying, "D94W0422N"3"-A (Mitani Valve Co., Ltd.)", was used for the aerosol products.

[0059] Following the procedure described above, hair bundles styled with hair styling product 1 were sprayed with 5.0g of each aerosol product from Examples 6-12, and the hair was run through 10 times with fingers to evaluate the ease of finger-combing and the ability of the hair bundles to separate. Furthermore, the flexibility of the hair bundles after drying was evaluated in the same manner as described above. The evaluation criteria were the same as in Example 1 described above. The results are shown in Table 3. All of Examples 6 to 12 yielded favorable results.

[0060] [Table 3]

[0061] In addition to those mentioned above, the materials used are as follows: EIS-V: Ethyl isostearate (Higher Alcohol Industry Co., Ltd.) IPIS: Isopropyl isostearate (Higher Alcohol Industry Co., Ltd.) ICIS: Hexyldecyl Isostearate (Higher Alcohol Industry Co., Ltd.) ISIS: Isostearyl Isostearate (Higher Alcohol Industry Co., Ltd.) TISG: Glyceryl Triisostearate (Higher Alcohol Industry Co., Ltd.) KAK TTI: Trimethylolpropane triisostearate (Higher Alcohol Industry Co., Ltd.) NIKKOL PBC-44:PPG-8 Ceteth-20 (Nikko Chemicals Co., Ltd.) NIKKOL GO-430NV: Sorbeth-30 Tetraoleate (Nikko Chemicals Co., Ltd.) NIKKOL TMGCO-7: PEG-7 Glyceryl Cocoate (Nikko Chemicals Co., Ltd.) PYROTER CPI-60: PEG-60 Hydrogenated Castor Oil Isostearate (Nippon Emulsion Co., Ltd.)

[0062] Next, we prepared hair styling products 2-7, each containing a different hair setting resin, and verified the effect of the hair composition on each styling product. Specifically, the stock solutions for hair styling products 2-7 were prepared using the formulations (mass%) shown in Table 4. The amount of setting resin in the stock solution was adjusted to 5% by mass. Details of the setting resins in Table 4, other than those mentioned above, are shown in Table 5. A mixture of 60% by mass of the undiluted hair styling products 2-7 and 40% by mass of dimethyl ether was filled into a pressure-resistant container for aerosols to obtain aerosols of hair styling products 2-7 that could be dispensed in a spray form. Then, hair styling products 2-7 were sprayed onto hair strands in the same manner as hair styling product 1 to obtain styled hair strands.

[0063] [Table 4]

[0064] [Table 5]

[0065] <Example 13> Next, the raw materials were mixed according to the formulations (mass%) shown in Table 6 to prepare a hair composition. Furthermore, the obtained hair composition and LPG as a propellant were each filled into pressure-resistant containers (100 mL aerosol glass test bottles) in the mass percentages listed in Table 6, totaling 40 g, to obtain aerosol products filled with the hair composition. The aerosol products were dispensed using a button capable of spraying, "D94W0422N"3"-A (Mitani Valve Co., Ltd.)".

[0066] [Table 6]

[0067] Bis-diisopropanolamino PG-propyl (disiloxane / bisvinyl dimethicone) copolymer and butyl octanol were sourced from Hydroxy SHIELD Polymer (Dow-Toray Industries, Inc.). Other materials were the same as described above.

[0068] Hair strands styled with each of the hair styling products 2-7 were sprayed with 5.0g of the aerosol product from Example 13, and the hair was run through 10 times with fingers to evaluate the ease of finger-combing and the ease of loosening the hair strands. Furthermore, the flexibility of the hair strands after drying was evaluated in the same manner as above. The evaluation criteria were the same as in Example 1. The results are shown in Table 4. The hair composition of Example 13 showed good results with all of the hair styling products 2-7.

Claims

1. A hair composition, The hair composition contains a cationic polymer, an oily component, and water. A hair composition comprising a cationic polymer containing polyquaternium-6.

2. The hair composition according to claim 1, wherein the oily component contains an oil having an isostearyl structure.

3. The hair composition according to claim 2, wherein the oil having the isostearyl structure is at least one selected from the group consisting of isostearic acid, isostearyl alcohol, ester compounds of isostearic acid and alcohol, and ester compounds of isostearyl alcohol and carboxylic acid.

4. The hair composition according to claim 2, wherein the oil having the isostearyl structure is at least one selected from the group consisting of isostearic acid, isostearyl alcohol, pentaerythyl tetraisostearate, ethyl isostearate, isopropyl isostearate, hexyldecyl isostearate, isostearyl isostearate, glyceryl triisostearate, and trimethylolpropane triisostearate.

5. The hair composition according to claim 2, wherein the content of the oil having the isostearyl structure in the hair composition is 0.2 to 15.0% by mass.

6. The hair composition according to claim 1, wherein the content of polyquaternium-6 in the hair composition is 0.2 to 10.0% by mass.

7. The hair composition according to claim 1, wherein the hair composition contains a nonionic surfactant.

8. The hair composition according to claim 1, wherein the hair composition is a composition for loosening styled hair.

9. A container filled with an aerosol composition, and A dispensing mechanism provided in the container for dispensing the aerosol composition, an aerosol product having, An aerosol product wherein the aerosol composition is the hair composition described in any one of claims 1 to 8.

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