Water-based components

Abstract

The aqueous composition includes 0.5 mass% to 22 mass% of a first powder which is a non-spherical powder having a hydrophobic particle surface, 6 mass% to 30 mass% or a liquid alcohol, and 50 mass% or more of water. A second powder which is a spherical powder is 1.5 mass part or less per mass part of the first powder. An oily component is 5 mass% or less relative to the mass of the aqueous composition. A surfactant is 0.5 mass% or less relative to the mass of the aqueous composition.

Description

Related Applications

[0001] The present invention is based on the priority claim of Japanese Patent Applications: Patent Application No. 2020-178825 (filed October 26, 2020), Patent Application No. 2020-178826 (filed October 26, 2020), and Patent Application No. 2021-86457 (filed May 21, 2021), the entire contents of which are incorporated herein by reference. [Technical Field]

[0002] The present disclosure relates to aqueous compositions containing powders. [Background technology]

[0003] Cosmetic compositions containing powder are known. For example, Patent Document 1 discloses a cosmetic preparation that can be applied in a thin layer and has a cream or paste-like consistency.

[0004] The cosmetic preparation described in Patent Document 1 contains approximately 80% by mass of water, 5% by mass of hydrophobized silicon dioxide powder, 2.5% by mass of hydrophilized mica, 5% by mass of pentylene glycol, 2% by mass of dimethicone, 0.5% by mass of dimethicone copolyol, 0.75% by mass of sodium carboxymethyl starch, etc. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Special Publication No. 2007-512380 Summary of the Invention [Problem to be solved by the invention]

[0006] The following analysis is given in light of the present disclosure.

[0007] In aqueous compositions containing powder, it is necessary for the powder to be dispersed throughout the composition. In the cosmetic preparation described in Patent Document 1, the stability of the composition is maintained by adding hydrophobized silicon dioxide powder, which is a spherical powder. However, if a large amount of spherical particles (spherical powder) is present, uneven application due to the spherical powder occurs during application, impairing uniform luster. Furthermore, if the amount of liquid polyhydric alcohol is small, the user may feel a sense of tightness during application and be more likely to notice powdery squeaking.

[0008] Therefore, there is a demand for a powder-containing aqueous composition that has stable powder dispersibility, yet produces a uniform coating film, suppresses the occurrence of squeaking during application, and has a high secondary adhesion-free effect. [Means for solving the problem]

[0009] According to a first aspect of the present disclosure, there is provided an aqueous composition comprising 0.5% to 22% by mass of a first powder, which is a non-spherical powder with hydrophobic particle surfaces, 6% to 30% by mass of liquid alcohol, and 50% or more by mass of water. The second powder, which is a spherical powder, is present in an amount of 1.5 parts by mass or less per part by mass of the first powder. The oily component is present in an amount of 5% by mass or less relative to the mass of the aqueous composition. The surfactant is present in an amount of 0.5% by mass or less relative to the mass of the aqueous composition. [Effects of the Invention]

[0010] According to the aqueous composition of the present disclosure, powder can be stably dispersed in the aqueous composition while suppressing aggregation, without the need for an oily component or a surfactant.

[0011] The aqueous composition of the present disclosure allows the powder contained therein to be applied uniformly to the target (e.g., skin). This allows the appearance of the applied area to be improved. Furthermore, the uniform adhesion of the powder to the target (e.g., skin) can prevent secondary adhesion to masks and clothing.

[0012] The aqueous composition of the present disclosure can suppress the occurrence of squeaking during application. DETAILED DESCRIPTION OF THE INVENTION

[0013] Preferred embodiments of each of the above aspects will be described below.

[0014] According to a preferred mode of the first aspect, the first powder is at least one selected from the group consisting of a plate-like powder and a lump-like powder.

[0015] According to a preferred mode of the first aspect, the first powder has an average aspect ratio of 1.5-170.

[0016] According to a preferred embodiment of the first aspect, the average aspect ratio of the second powder is less than 1.2.

[0017] According to a preferred embodiment of the first aspect, the first powder is a plate-like powder coated with at least one selected from the group consisting of higher fatty acids, metal soaps, silicone compounds, surfactants, and dextrin fatty acid esters.

[0018] According to a preferred embodiment of the first aspect, the liquid alcohol includes a lower monohydric alcohol and a liquid polyhydric alcohol.

[0019] According to a preferred embodiment of the first aspect, the lower monohydric alcohol is ethanol.

[0020] According to a preferred embodiment of the first aspect, the liquid polyhydric alcohol is at least one selected from the group consisting of glycerin, 1,3-butylene glycol, polyethylene glycol, diglycerin, and dipropylene glycol.

[0021] According to a preferred embodiment of the first aspect, the powder-containing composition further comprises at least one selected from the group consisting of PEG-240 / decyltetradeceth-20 / HDI copolymer, dimethylacrylamide / sodium acryloyldimethyltaurate crosspolymer, and polyurethane-59.

[0022] According to a preferred embodiment of the first aspect, the aqueous composition has a viscosity of 1,000 mPa·s to 150,000 mPa·s.

[0023] According to a preferred embodiment of the first aspect, the aqueous composition is applied to cosmetics.

[0024] In the following description, POE is an abbreviation for polyoxyethylene, and POP is an abbreviation for polyoxypropylene, and the number in parentheses after POE or POP represents the average number of moles of POE groups or POP groups added in the compound.

[0025] In the present disclosure, the term "substantial amount" refers to an amount that can produce the functional effect of the compound added.

[0026] An aqueous composition according to a first embodiment of the present disclosure will be described.

[0027] In the present disclosure, "liquid" refers to something that is liquid at 25°C and has fluidity.

[0028] The aqueous composition of the present disclosure contains a first powder, a liquid alcohol, and water. The aqueous composition of the present disclosure is preferably a liquid composition at atmospheric pressure and 25°C.

[0029] The aqueous compositions of the present disclosure are preferably non-emulsified.

[0030] [First powder] The first powder is a powder whose particle surfaces are hydrophobic. For example, the first powder can be a powder whose particle surfaces have been hydrophobized. Examples of methods for hydrophobization include coating the particles with at least one selected from the group consisting of higher fatty acids, metal soaps, silicone compounds, surfactants, and dextrin fatty acid esters. If the particles of the first powder are hydrophobic, the surfaces do not need to be hydrophobized.

[0031] The first powder has a non-spherical shape. For example, the first powder can be at least one selected from the group consisting of plate-like powder and clumped powder (agglomerated powder). Plate-like powder is a powder in which primary particles have a flat plate shape. Clumped powder is a powder containing secondary particles with an irregular shape formed by aggregation of primary particles. In the clumped powder, it is preferable that the particle surfaces of the primary particles are hydrophobic.

[0032] The first powder preferably has an average aspect ratio of, for example, 1.5 or more, preferably 3 or more, and more preferably 5 or more. The first powder can have an average aspect ratio of 7 or more, 10 or more, or 20 or more. If the average aspect ratio is less than 3, adhesion to the target (e.g., skin) during application is impaired, resulting in uneven application. The average aspect ratio of the first powder can be, for example, 200 or less, 170 or less, 150 or less, 120 or less, or 100 or less. In particular, the plate-like powder can have an average aspect ratio of 20 or more.

[0033] When the aqueous composition of the present disclosure is applied as an external preparation for skin, examples of the first powder include mica (including synthetic phlogopite), sericite (including calcined sericite), talc, etc., the surface of which is coated with at least one selected from the group consisting of distearyldimonium chloride, magnesium stearate, triethoxysilylethyl polydimethylsiloxyethyl dimethicone, amodimethicone, hydrogen dimethicone, and zinc decyltrisiloxanecarboxylate.

[0034] The aspect ratio can be calculated, for example, by microscopic observation, by randomly selecting 100 particles, measuring the longitudinal (plane) length of each particle and the transverse (thickness) length of each particle, and dividing the longitudinal length by the transverse length (=longitudinal length / transverse length). The particle with the longest longitudinal length is selected. The average aspect ratio can be the average value of the aspect ratios of the random 100 particles.

[0035] Examples of the first powder include talc, kaolin, sericite, muscovite, phlogopite, synthetic mica, synthetic fluorine phlogopite, synthetic fluorine iron phlogopite, lepidolite, biotite, calcined talc, calcined sericite, calcined muscovite, calcined phlogopite, vermiculite, magnesium carbonate, calcium carbonate, aluminum silicate, barium silicate, calcium silicate, magnesium silicate, strontium silicate, metal tungstate, magnesium, silica, zeolite, barium sulfate, calcined calcium sulfate (calcined gypsum), calcium phosphate, fluorapatite, hydroxyapatite, and the like. Patite, ceramic powder, metal soap (e.g., zinc myristate, calcium palmitate, aluminum stearate, etc.), boron nitride, photochromic titanium oxide (titanium dioxide sintered with iron oxide), reduced zinc oxide; inorganic white pigments (e.g., titanium dioxide, zinc oxide, etc.); inorganic red pigments (e.g., iron oxide (red iron), iron titanate, etc.); inorganic brown pigments (e.g., gamma-iron oxide, etc.); inorganic yellow pigments (e.g., yellow iron oxide, ochre, etc.); inorganic black pigments (e.g., black iron oxide, low-order titanium oxide, etc.); inorganic purple pigments (e.g., mango violet, inorganic green pigments (e.g., chromium oxide, chromium hydroxide, cobalt titanate, etc.); inorganic blue pigments (e.g., ultramarine, iron blue, etc.); pearl pigments (e.g., bismuth oxychloride, fish scale foil, mica titanium, iron oxide-coated mica titanium, low-order titanium oxide-coated mica titanium, photochromic mica titanium, substrates using talc, glass, synthetic fluorine phlogopite, silica, bismuth oxychloride, etc. instead of mica, coatings other than titanium oxide, low-order titanium oxide, colored titanium oxide, iron oxide, alumina, silica, zirconia, acid The pigment may be at least one selected from the group consisting of those coated with zinc oxide, cobalt oxide, aluminum, etc., functional pearl pigments in which the surface of a pearl pigment is coated with resin particles (JP 11-92688 A), those in which the surface of a pearl pigment is coated with aluminum hydroxide particles (JP 2002-146238 A), those in which the surface of a pearl pigment is coated with zinc oxide particles (JP 2003-261421 A), those in which the surface of a pearl pigment is coated with barium sulfate particles (JP 2003-61229 A), etc.); and metal powder pigments (e.g., aluminum powder, copper powder, etc.).

[0036] The average particle size of the first powder is preferably 0.01 μm or more, more preferably 0.1 μm or more, and even more preferably 1 μm or more. The average particle size of the first powder is preferably 200 μm or less, more preferably 100 μm or less, and even more preferably 70 μm or less.

[0037] The average particle size of the first powder can be measured using a dynamic light scattering method.

[0038] It is preferable that the first powder is prevented from aggregating even when the aqueous composition is left standing and is dispersed in the aqueous composition.

[0039] The content of the first powder is preferably 0.5% by mass or more, more preferably 1% by mass or more, more preferably 2% by mass or more, and even more preferably 3% by mass or more, relative to the mass of the aqueous composition. The content of the first powder can be 4% by mass or more, 5% by mass or more, 6% by mass or more, or 7% by mass or more, relative to the mass of the aqueous composition. If the content of the first powder is less than 0.5% by mass, a uniform gloss cannot be achieved on the applied area. The content of the first powder is preferably 22% by mass or less, more preferably 20% by mass or less, more preferably 18% by mass or less, and even more preferably 16% by mass or less, relative to the mass of the aqueous composition. The content of the first powder can be 14% by mass or less, 12% by mass or less, 10% by mass or less, 8% by mass or less, 6% by mass or less, or 4% by mass or less, relative to the mass of the aqueous composition. If the content of the first powder exceeds 22% by mass, the dispersibility of the powder decreases. Furthermore, squeakiness is likely to occur during application. Furthermore, the uniformity of the powder coating film decreases.

[0040] [Liquid alcohol] The liquid alcohol contains a lower monohydric alcohol and / or a liquid polyhydric alcohol. When it is desired to improve the dispersibility of the powder and the secondary adhesion-resistant effect, the liquid alcohol preferably contains a lower monohydric alcohol. The liquid alcohol more preferably contains a lower monohydric alcohol and a liquid polyhydric alcohol.

[0041] When the powder-containing composition of the present disclosure further contains a liquid polyhydric alcohol, the dispersibility of the powder, the uniformity of the film, the shine, and the feel when used can be further improved.

[0042] Opportunities for wearing masks to prevent infection are increasing. Therefore, when a powder-containing composition is applied as a skin topical preparation such as a cosmetic, the powder-containing composition is required to have a high secondary adhesion-resistant effect in order to prevent makeup from coming off and discoloration of the mask.

[0043] When the powder-containing composition of the present disclosure contains a lower monohydric alcohol, the adhesion of the powder to an object (e.g., skin) can be enhanced when the powder is applied to the object, thereby preventing the powder from adhering to contact objects such as masks and clothing.

[0044] When the powder-containing composition of the present disclosure contains a lower monohydric alcohol, the dispersibility of the powder can be further improved.

[0045] Examples of lower monohydric alcohols include ethanol, 1-propanol, 2-propanol (isopropyl alcohol), 1-butanol (n-butyl alcohol), 2-methyl-1-propanol (isobutyl alcohol), 2-butanol (sec-butyl alcohol), and 2-methyl-2-propanol (tert-butyl alcohol).

[0046] Examples of liquid polyhydric alcohols include glycerin, 1,3-butylene glycol, polyethylene glycol, diglycerin, and dipropylene glycol.

[0047] The lower monohydric alcohol is preferably present in an amount of 1% by mass or more relative to the mass of the aqueous composition. The lower monohydric alcohol may be present in an amount of 2% by mass or more, 3% by mass or more, 4% by mass or more, 5% by mass or more, 7% by mass or more, or 10% by mass or more relative to the mass of the aqueous composition. If the lower monohydric alcohol is present in an amount of less than 1% by mass, the secondary adhesion-resistant effect will be reduced. The lower monohydric alcohol may be present in an amount of 25% by mass or less, 20% by mass or less, 15% by mass or less, 10% by mass or less, 8% by mass or less, 6% by mass or less, or 5% by mass or less relative to the mass of the aqueous composition.

[0048] The liquid polyhydric alcohol is preferably 6% by mass or more, more preferably 7% by mass or more, and even more preferably 8% by mass or more, relative to the mass of the aqueous composition. The liquid polyhydric alcohol can be 10% by mass or more, 12% by mass or more, or 15% by mass or more, relative to the mass of the aqueous composition. If the liquid polyhydric alcohol is less than 6% by mass, it becomes difficult to disperse the first powder in the composition. Furthermore, the aqueous composition may produce a squeaky sound when applied. Furthermore, the gloss of the area to which the aqueous composition is applied may be reduced. The liquid polyhydric alcohol is preferably 25% by mass or less, more preferably 22% by mass or less, more preferably 20% by mass or less, and even more preferably 16% by mass or less, relative to the mass of the aqueous composition. The liquid polyhydric alcohol can be 14% by mass or less, 12% by mass or less, 10% by mass or less, 8% by mass or less, 6% by mass or less, or 5% by mass or less, relative to the mass of the aqueous composition. If the liquid polyhydric alcohol exceeds 25% by mass, the surface becomes sticky and it becomes difficult to apply the first powder uniformly.

[0049] The amount of the liquid polyhydric alcohol per 1 part by mass of the lower monohydric alcohol can be 0.2 parts by mass or more, 0.5 parts by mass or more, 1 part by mass or more, 1.5 parts by mass or more, 2 parts by mass or more, 3 parts by mass or more, 4 parts by mass or more, 4 parts by mass or more, or 6 parts by mass or more. The amount of the liquid polyhydric alcohol per 1 part by mass of the lower monohydric alcohol can be, for example, 10 parts by mass or less, 8 parts by mass or less, 6 parts by mass or less, 5 parts by mass or less, 4 parts by mass or less, 3 parts by mass or less, 2.5 parts by mass or less, 2 parts by mass or less, 1.5 parts by mass or less, or 1 part by mass or less.

[0050] The liquid alcohol (total amount of lower monohydric alcohol and liquid polyhydric alcohol) can be 6% by mass or more, 7% by mass or more, 8% by mass or more, 10% by mass or more, 12% by mass or more, 15% by mass or more, 18% by mass or more, or 20% by mass or more, based on the mass of the aqueous composition. The liquid alcohol can be 30% by mass or less, 26% by mass or less, 22% by mass or less, 18% by mass or less, 14% by mass or less, or 10% by mass or less, based on the mass of the aqueous composition.

[0051] The term "squeakiness" as used herein refers to the sensation of loss of smoothness when applying a composition to the skin. Powdery squeakiness refers to the squeakiness caused by powder.

[0052] [water] As the water, water used in cosmetics, quasi-drugs, etc. can be used, such as purified water, ion-exchanged water, tap water, etc.

[0053] The amount of water is preferably 50% by mass or more, more preferably 55% by mass or more, preferably 60% by mass or more, and even more preferably 65% ​​by mass or more, based on the mass of the aqueous composition. The amount of water can be 70% by mass or more, or 75% by mass or more, based on the mass of the aqueous composition. If the amount of water is less than 50% by mass, a good feel during use cannot be obtained. The amount of water is preferably 95% by mass or less, more preferably 90% by mass or less, and even more preferably 85% by mass or less, based on the mass of the aqueous composition. The amount of water can be 80% by mass or less, 75% by mass or less, or 70% by mass or less, based on the mass of the aqueous composition.

[0054] [Thickener] The aqueous composition of the present disclosure may further contain a thickener. The type of thickener is not particularly limited. The thickener can be added so as to achieve a desired viscosity depending on the purpose.

[0055] Examples of thickeners include hydrophobic polymers. Examples of hydrophobic polymers include hydrophobically modified polyetherurethanes. Examples of hydrophobically modified polyetherurethanes include at least one selected from the group consisting of PEG-240 / decyltetradeceth-20 / HDI copolymer and polyurethane-59. Among these, PEG-240 / decyltetradeceth-20 / HDI copolymer is more preferred. PEG-240 / decyltetradeceth-20 / HDI copolymer is a hydrophobically modified polyetherurethane composed of a copolymer of PEG-240, decyltetradeceth-20, and hexamethylene diisocyanate (HDI). Commercially available PEG-240 / decyltetradeceth-20 / HDI copolymers include ADEKA NOL (registered trademark) GT-700 (manufactured by ADEKA Corporation). Polyurethane-59 is a hydrophobically modified polyether urethane consisting of a copolymer of ethylhexylglycerin, PEG-240, tetradecyl octadeceth-100, and hexamethylene diisocyanate (HDI). Commercially available polyurethane-59 products include ADEKA NOL (registered trademark) GT-930 (manufactured by ADEKA Corporation).

[0056] As other thickeners, acrylamide-based thickeners such as (dimethylacrylamide / sodium acryloyldimethyltaurate) crosspolymer can be used.

[0057] Other examples of thickeners include gum arabic, carrageenan, karaya gum, tragacanth gum, carob gum, quince seed, casein, dextrin, gelatin, sodium pectinate, sodium alginate, methylcellulose, ethylcellulose, carboxymethylcellulose (CMC), hydroxyethylcellulose, hydroxypropylcellulose, polyvinyl alcohol (PVA), polyvinyl methyl ether (PVM), PVP (polyvinylpyrrolidone), sodium polyacrylate, carboxyvinyl polymer, locust bean gum, guar gum, tamarind gum, dialkyldimethylammonium cellulose sulfate, xanthan gum, magnesium aluminum silicate, bentonite, hectorite, magnesium aluminum silicate (Bee Gum), Laponite, silicic anhydride, taurate-based synthetic polymers, and acrylate-based synthetic polymers.

[0058] The thickener may be present in an amount of 0.2% or more, or 0.5% or more, by weight, based on the weight of the powder-containing composition, and may be present in an amount of 2% or less, or 1.5% or less, by weight, based on the weight of the powder-containing composition.

[0059] [Second powder] In the aqueous composition of the present disclosure, the amount of the spherical second powder is preferably 1.5 parts by mass or less, more preferably 1 part by mass or less, more preferably 0.5 parts by mass or less, and even more preferably 0.1 parts by mass or less, per part by mass of the first powder. It is even more preferable that the second powder is not included in the aqueous composition (i.e., 0% by mass). If the amount of the second powder exceeds 1.5 parts by mass, the adhesion of the first powder to the target (e.g., skin) is impaired, resulting in uneven application and a loss of a uniform glossy finish.

[0060] In this disclosure, spherical powder refers to a powder that is mainly composed of spherical particles. Spherical powder can be referred to as a powder with an average aspect ratio of less than 1.2. Spherical powder can be confirmed, for example, by microscopic observation.

[0061] Examples of the second powder include inorganic spherical powders (silica, alumina, titania, calcium carbonate), and organic spherical powders (e.g., polyamide resin powder (nylon powder), polyethylene powder, polymethyl methacrylate powder, polystyrene powder, styrene-acrylic acid copolymer resin powder, benzoguanamine resin powder, polytetrafluoroethylene powder, cellulose powder, silicone resin powder, silk powder, wool powder, urethane powder, etc.).

[0062] The average particle size of the second powder is preferably 0.1 μm or more, more preferably 1 μm or more, and even more preferably 5 μm or more, and is preferably 50 μm or less, more preferably 20 μm or less, and even more preferably 15 μm or less.

[0063] The average particle size of the second powder can be measured using a dynamic light scattering method.

[0064] [Oily ingredients] In the aqueous composition of the present disclosure, the oily component is preferably contained in an amount of 5% by mass or less, preferably 3% by mass or less, more preferably 1% by mass or less, and even more preferably no amount (0% by mass is even more preferred) relative to the mass of the aqueous composition. By keeping the oily component at 5% by mass or less, stickiness upon application to the skin can be suppressed.

[0065] As the oily component, for example, wax, liquid oil, solid oil, wax, hydrocarbon, higher fatty acid, higher alcohol, synthetic ester oil, silicone oil, etc. can be used.

[0066] Examples of waxes include beeswax, candelilla wax, cotton wax, carnauba wax, bayberry wax, Ibota wax, whale wax, montan wax, bran wax, lanolin, kapok wax, acetated lanolin, liquid lanolin, sugarcane wax, lanolin fatty acid isopropyl, hexyl laurate, reduced lanolin, jojoba wax, hard lanolin, shellac wax, POE lanolin alcohol ether, POE lanolin alcohol acetate, POE cholesterol ether, lanolin fatty acid polyethylene glycol, POE hydrogenated lanolin alcohol ether, liquid paraffin, ozokerite, squalane, pristane, paraffin, ceresin, squalene, petrolatum, microcrystalline wax, and Fischer-Tropsch wax.

[0067] Examples of liquid oils and fats include avocado oil, camellia oil, turtle oil, macadamia nut oil, corn oil, mink oil, olive oil, rapeseed oil, egg yolk oil, sesame oil, persic oil, wheat germ oil, camellia oil, castor oil, linseed oil, safflower oil, cottonseed oil, perilla oil, soybean oil, peanut oil, tea seed oil, kaya oil, rice bran oil, Chinese tung oil, Japanese tung oil, jojoba oil, germ oil, and triglycerin.

[0068] Examples of solid fats and oils include cacao butter, coconut oil, horse fat, hardened coconut oil, palm oil, beef tallow, mutton tallow, hardened beef tallow, palm kernel oil, lard, beef bone fat, Japan wax kernel oil, hardened oil, beef trotter fat, Japan wax, and hardened castor oil.

[0069] Examples of waxes include beeswax, candelilla wax, cotton wax, carnauba wax, bayberry wax, ivory wax, whale wax, montan wax, rice bran wax, lanolin, kapok wax, lanolin acetate, liquid lanolin, sugarcane wax, lanolin fatty acid isopropyl, hexyl laurate, reduced lanolin, jojoba wax, hard lanolin, shellac wax, POE lanolin alcohol ether, POE lanolin alcohol acetate, POE cholesterol ether, lanolin fatty acid polyethylene glycol, and POE hydrogenated lanolin alcohol ether.

[0070] Examples of hydrocarbon oils include liquid paraffin, ozokerite, squalane, pristane, paraffin, ceresin, squalene, petrolatum, and microcrystalline wax.

[0071] Examples of higher fatty acids include lauric acid, myristic acid, palmitic acid, stearic acid, behenic acid, oleic acid, undecylenic acid, tall acid, isostearic acid, linoleic acid, linolenic acid, eicosapentaenoic acid (EPA), and docosahexaenoic acid (DHA).

[0072] Examples of higher alcohols that can be used include straight-chain alcohols (e.g., lauryl alcohol, cetyl alcohol, stearyl alcohol, behenyl alcohol, myristyl alcohol, oleyl alcohol, cetostearyl alcohol, etc.); branched-chain alcohols (e.g., monostearyl glycerin ether (batyl alcohol), 2-decyltetradecynol, lanolin alcohol, cholesterol, phytosterol, hexyldodecanol, isostearyl alcohol, octyldodecanol, etc.); and the like.

[0073] Synthetic ester oils include isopropyl myristate, cetyl octanoate, octyldodecyl myristate, isopropyl palmitate, butyl stearate, hexyl laurate, myristyl myristate, decyl oleate, hexyldecyl dimethyloctanoate, cetyl lactate, myristyl lactate, lanolin acetate, isocetyl stearate, isocetyl isostearate, cholesteryl 12-hydroxystearate, ethylene glycol di-2-ethylhexanoate, dipentaerythritol fatty acid esters, N-alkyl glycol monoisostearate, neopentyl glycol dicaprate, diisostearyl malate, glycerin di-2-heptylundecanoate, trimethylolpropane tri-2-ethylhexanoate, trimethylolpropane triisostearate, pentaerythritol tetra-2-ethylhexanoate. Ingredients: Glycerin Tri-2-Ethylhexanoate, Glycerin Trioctanoate, Glycerin Triisopalmitate, Trimethylolpropane Triisostearate, Cetyl 2-Ethylhexanoate, 2-Ethylhexyl Palmitate, Glycerin Trimyristate, Tri-2-Heptylundecanoic Acid Glyceride, Castor Oil Fatty Acid Methyl Ester, Oleyl Oleate, Acetoglyceride, 2-Heptyl Palmitate Examples of suitable glycerin-based copolymers include 2-hexyldecyl lauroyl glutamate, 2-hexyldodecyl lauroyl glutamate, 2-hexyldodecyl lauroyl glutamate, 2-hexylun ...

[0074] Examples of silicone oils include dimethylpolysiloxane, methylhydrogenpolysiloxane, methylphenylpolysiloxane, stearoxymethylpolysiloxane, polyether-modified organopolysiloxane, fluoroalkyl-polyoxyalkylene-co-modified organopolysiloxane, alkyl-modified organopolysiloxane, terminal-modified organopolysiloxane, fluorine-modified organopolysiloxane, amino-modified organopolysiloxane, silicone gel, acrylic silicone, trimethylsiloxysilicate, silicone RTV rubber, and silicone compounds such as cyclopentasiloxane.

[0075] [Surfactants] In the aqueous composition of the present disclosure, the surfactant content is preferably 0.5% by mass or less, more preferably 0.3% by mass or less, more preferably 0.1% by mass or less, and even more preferably 0% by mass or less. By keeping the surfactant content at 0.5% by mass or less, stickiness upon application to the skin can be suppressed and irritation to the skin can be reduced.

[0076] Examples of anionic surfactants include fatty acid soaps (e.g., sodium laurate, sodium palmitate, etc.); higher alkyl sulfates (e.g., sodium lauryl sulfate, potassium lauryl sulfate, etc.); alkyl ether sulfates (e.g., POE-lauryl triethanolamine sulfate, sodium POE-lauryl sulfate, etc.); N-acyl sarcosinates (e.g., sodium lauroyl sarcosinate, etc.); higher fatty acid amide sulfonates (e.g., sodium N-stearoyl-N-methyl taurate, sodium N-myristoyl-N-methyl taurate, sodium coconut oil fatty acid methyl taurate, sodium lauryl methyl taurate, etc.); phosphate salts (sodium POE-oleyl ether phosphate, sodium POE-stearyl ether phosphate, etc.); sulfosuccinates (e.g., sodium di-2-ethylhexyl sulfosuccinate, sodium monolauroyl monoethanolamide polyoxyethylene sulfosuccinate, sodium lauryl polypropylene Sodium glycol sulfosuccinate, etc.); alkylbenzenesulfonates (e.g., sodium linear dodecylbenzenesulfonate, triethanolamine linear dodecylbenzenesulfonate, linear dodecylbenzenesulfonic acid, etc.); higher fatty acid ester sulfates (e.g., sodium hydrogenated coconut oil fatty acid glycerin sulfate, etc.); N-acylglutamates (e.g., monosodium N-lauroylglutamate, disodium N-stearoylglutamate, monosodium N-myristoyl-L-glutamate, etc.); sulfated oils (e.g., turmeric oil, etc.); POE-alkyl ether carboxylic acids; POE-alkyl allyl ether carboxylates; α-olefin sulfonates; higher fatty acid ester sulfonates; secondary alcohol sulfates; higher fatty acid alkylolamide sulfates; sodium lauroylmonoethanolamide succinate; N-palmitoyl aspartic acid ditriethanolamine; sodium caseinate, etc.

[0077] Examples of cationic surfactants include alkyltrimethylammonium salts (e.g., stearyltrimethylammonium chloride, lauryltrimethylammonium chloride, etc.); alkylpyridinium salts (e.g., cetylpyridinium chloride, etc.); dialkyldimethylammonium salts (e.g., distearyldimethylammonium chloride); poly(N,N'-dimethyl-3,5-methylenepiperidinium chloride); alkyl quaternary ammonium salts; alkyldimethylbenzylammonium salts; alkylisoquinolinium salts; dialkylmorphonium salts; POE-alkylamines; alkylamine salts; polyamine fatty acid derivatives; amyl alcohol fatty acid derivatives; benzalkonium chloride; benzethonium chloride, etc.

[0078] Examples of amphoteric surfactants include imidazoline-based amphoteric surfactants (e.g., 2-undecyl-N,N,N-(hydroxyethylcarboxymethyl)-2-imidazoline sodium, 2-cocoyl-2-imidazolinium hydroxide-1-carboxyethyloxy disodium salt, etc.); betaine-based surfactants (e.g., 2-heptadecyl-N-carboxymethyl-N-hydroxyethylimidazolinium betaine, lauryldimethylaminoacetic acid betaine, alkyl betaine, amido betaine, sulfobetaine, etc.).

[0079] Examples of hydrophilic nonionic surfactants include POE-sorbitan fatty acid esters (e.g., POE-sorbitan monooleate, POE-sorbitan monostearate, POE-sorbitan monooleate, POE-sorbitan tetraoleate, etc.); POE-sorbitol fatty acid esters (e.g., POE-sorbitol monolaurate, POE-sorbitol monooleate, POE-sorbitol pentaoleate, POE-sorbitol monostearate, etc.); POE-glycerin fatty acid esters (e.g., POE-glycerin monostearate, POE-monooleates such as POE-glycerol monoisostearate, POE-glycerol triisostearate, etc.; POE-fatty acid esters (e.g., POE-distearate, POE-monodioleate, ethylene glycol distearate, etc.); POE-alkyl ethers (e.g., POE-lauryl ether, POE-oleyl ether, POE-stearyl ether, POE-behenyl ether, POE-2-octyldodecyl ether, POE-cholestanol ether, etc.); Pluronic types (e.g., Pluronic etc.); POE·POP-alkyl ethers (e.g., POE·POP-cetyl ether, POE·POP-2-decyltetradecyl ether, POE·POP-monobutyl ether, POE·POP-hydrogenated lanolin, POE·POP-glycerin ether, etc.); tetraPOE·tetraPOP-ethylenediamine condensates (e.g., Tetronic, etc.); POE-castor oil hydrogenated castor oil derivatives (e.g., POE-castor oil, POE-hydrogenated castor oil, POE-hydrogenated castor oil monoisostearate, POE-hydrogenated castor oil triisostearate, POE -hydrogenated castor oil monopyroglutamic acid monoisostearate diester, POE-hydrogenated castor oil maleic acid, etc.); POE-beeswax and lanolin derivatives (e.g., POE-sorbitol beeswax, etc.); alkanolamides (e.g., coconut oil fatty acid diethanolamide, lauric acid monoethanolamide, fatty acid isopropanolamide, etc.); POE-propylene glycol fatty acid esters; POE-alkylamines; POE-fatty acid amides; sucrose fatty acid esters; alkylethoxydimethylamine oxide; trioleyl phosphate, etc.

[0080] Examples of lipophilic nonionic surfactants include sorbitan fatty acid esters (e.g., sorbitan monooleate, sorbitan monoisostearate, sorbitan monolaurate, sorbitan monopalmitate, sorbitan monostearate, sorbitan sesquioleate, sorbitan trioleate, diglycerol sorbitan penta-2-ethylhexylate, diglycerol sorbitan tetra-2-ethylhexylate, etc.); glycerin polyglycerin fatty acids (e.g., glycerin monocottonseed oil fatty acid, glycerin monoerucate, glycerin sesquioleate, glycerin monostearate, glycerin α,α'-oleic acid pyroglutamate, glycerin monostearate malate, etc.); propylene glycol fatty acid esters (e.g., propylene glycol monostearate, etc.); hydrogenated castor oil derivatives; and glycerin alkyl ethers.

[0081] [viscosity] The aqueous composition of the present disclosure preferably has a viscosity of 1,000 mPa·s or more, preferably 5,000 mPa·s or more, and more preferably 10,000 mPa·s or more. If the viscosity is less than 1,000 mPa·s, the powder dispersibility cannot be maintained over time. The viscosity of the aqueous composition of the present disclosure is preferably 150,000 mPa·s or less, and more preferably 100,000 mPa·s or less. If the viscosity exceeds 150,000 mPa·s, the ease of application to the skin decreases. Viscosity can be measured using a Brookfield viscometer (spindle number 1, rotation speed 60 rpm) at 30°C.

[0082] [others] The aqueous composition of the present disclosure may contain other ingredients, such as water-soluble alcohols, moisturizers, film-forming agents, oil-soluble UV absorbers, water-soluble UV absorbers, sequestering agents, amino acids, organic amines, polymer emulsions, pH adjusters, skin nutrients, vitamins, antioxidants, antioxidant aids, fragrances, and the like, as needed, within the scope of not impairing the effects of the present disclosure.

[0083] Examples of the water-soluble alcohol include at least one selected from lower alcohols, polyhydric alcohols, polyhydric alcohol polymers, dihydric alcohol alkyl ethers, dihydric alcohol alkyl ethers, dihydric alcohol ether esters, glycerin monoalkyl ethers, sugar alcohols, monosaccharides, oligosaccharides, polysaccharides, and derivatives thereof.

[0084] Examples of lower alcohols include ethanol, propanol, isopropanol, isobutyl alcohol, and t-butyl alcohol.

[0085] Examples of polyhydric alcohols include dihydric alcohols (e.g., ethylene glycol, propylene glycol, trimethylene glycol, 1,2-butylene glycol, 1,3-butylene glycol, tetramethylene glycol, 2,3-butylene glycol, pentamethylene glycol, 2-butene-1,4-diol, hexylene glycol, octylene glycol, etc.); trihydric alcohols (e.g., glycerin, trimethylolpropane, etc.); tetrahydric alcohols (e.g., pentaerythritol such as 1,2,6-hexanetriol, etc.); pentahydric alcohols (e.g., xylitol, etc.); hexahydric alcohols (e.g., sorbitol, mannitol, etc.); polyhydric alcohol polymers (e.g., diethylene glycol, dipropylene glycol, triethylene glycol, etc.); glycol, polypropylene glycol, tetraethylene glycol, diglycerin, polyethylene glycol, triglycerin, tetraglycerin, polyglycerin, etc.); dihydric alcohol alkyl ethers (e.g., ethylene glycol monomethyl ether, ethylene glycol monoethyl ether, ethylene glycol monobutyl ether, ethylene glycol monophenyl ether, ethylene glycol monohexyl ether, ethylene glycol mono-2-methylhexyl ether, ethylene glycol isoamyl ether, ethylene glycol benzyl ether, ethylene glycol isopropyl ether, ethylene glycol dimethyl ether, ethylene glycol diethyl ether, ethylene glycol dibutyl ether, etc.);Dihydric alcohol alkyl ethers (e.g., diethylene glycol monomethyl ether, diethylene glycol monoethyl ether, diethylene glycol monobutyl ether, diethylene glycol dimethyl ether, diethylene glycol diethyl ether, diethylene glycol butyl ether, diethylene glycol methyl ethyl ether, triethylene glycol monomethyl ether, triethylene glycol monoethyl ether, propylene glycol monomethyl ether, propylene glycol monoethyl ether, propylene glycol monobutyl ether, propylene glycol isopropyl ether, dipropylene glycol methyl ether, dipropylene glycol ethyl ether, dipropylene glycol butyl ether, etc.); dihydric alcohol ether esters (e.g., ethylene glycol monomethyl ether acetate, ethylene glycol monoethyl ether acetate, ethylene glycol monobutyl ether acetate, ethylene glycol monophenyl ether acetate, ethylene glycol diadipate, ethylene glycol Disuccinate, diethylene glycol monoethyl ether acetate, diethylene glycol monobutyl ether acetate, propylene glycol monomethyl ether acetate, propylene glycol monoethyl ether acetate, propylene glycol monopropyl ether acetate, propylene glycol monophenyl ether acetate, etc.; glycerin monoalkyl ethers (e.g., chimyl alcohol, selachyl alcohol, batyl alcohol, etc.); sugar alcohols (e.g., sorbitol, maltitol, maltotriose, mannitol, sucrose, erythritol, glucose, fructose, starch hydrolysis sugars, maltose, xylitol, starch hydrolysis sugar reducing alcohols, etc.); glycolide; tetrahydrofurfuryl alcohol; POE-tetrahydrofurfuryl alcohol; POP-butyl ether; POP·POE-butyl ether; tripolyoxypropylene glycerin ether; POP-glycerin ether; POP-glycerin ether phosphate; POP·POE-pentaneerythritol ether, polyglycerin, etc.;

[0086] Examples of monosaccharides include trioses (e.g., D-glyceryl aldehyde, dihydroxyacetone, etc.), tetraoses (e.g., D-erythrose, D-erythrulose, D-threose, erythritol, etc.), pentoses (e.g., L-arabinose, D-xylose, L-lyxose, D-arabinose, D-ribose, D-ribulose, D-xylulose, L-xylulose, etc.), hexoses (e.g., D-glucose, D-talose, D-psicose, D-galactose, D-fructose, L-galactose, L-mannose, D- The sugar may be at least one selected from the group consisting of sugars such as tagatose, heptoses (e.g., aldoheptose, heptulose), octose (e.g., octulose), deoxysugars (e.g., 2-deoxy-D-ribose, 6-deoxy-L-galactose, 6-deoxy-L-mannose), aminosugars (e.g., D-glucosamine, D-galactosamine, sialic acid, aminouronic acid, muramic acid), and uronic acids (e.g., D-glucuronic acid, D-mannuronic acid, L-guluronic acid, D-galacturonic acid, L-iduronic acid).

[0087] Examples of oligosaccharides include at least one selected from sucrose, gunthianose, umbelliferose, lactose, planteose, isolychnoses, α,α-trehalose, raffinose, lychnoses, umbilicin, stachyose, verbascoses, and the like.

[0088] Examples of polysaccharides include at least one selected from cellulose, quince seed, chondroitin sulfate, starch, galactan, dermatan sulfate, glycogen, gum arabic, heparan sulfate, hyaluronic acid, tragacanth gum, keratan sulfate, chondroitin, xanthan gum, mucoitin sulfate, guar gum, dextran, keratosulfate, locust bean gum, succinoglucan, and caronic acid.

[0089] Examples of other polyols include at least one selected from polyoxyethylene methyl glucoside (Glucam E-10), polyoxypropylene methyl glucoside (Glucam P-10), and the like.

[0090] Examples of natural water-soluble polymers include plant-based polymers (e.g., gum arabic, tragacanth gum, galactan, guar gum, carob gum, karaya gum, carrageenan, pectin, agar, quince seed (marmella), algae colloid (cassowia extract), starch (rice, corn, potato, wheat), glycyrrhizic acid); microbial-based polymers (e.g., xanthan gum, dextran, succinoglucan, pullulan, etc.); and animal-based polymers (e.g., collagen, casein, albumin, gelatin, etc.).

[0091] Examples of semi-synthetic water-soluble polymers include starch-based polymers (e.g., carboxymethyl starch, methylhydroxypropyl starch, etc.); cellulose-based polymers (methyl cellulose, ethyl cellulose, methylhydroxypropyl cellulose, hydroxyethyl cellulose, sodium cellulose sulfate, hydroxypropyl cellulose, carboxymethyl cellulose, sodium carboxymethyl cellulose, crystalline cellulose, cellulose powder, etc.); and alginic acid-based polymers (e.g., sodium alginate, propylene glycol alginate, etc.).

[0092] Examples of moisturizing agents include polyethylene glycol, propylene glycol, glycerin, 1,3-butylene glycol, xylitol, sorbitol, maltitol, chondroitin sulfate, hyaluronic acid, mucoitin sulfate, caronic acid, atelocollagen, cholesteryl-12-hydroxystearate, sodium lactate, bile salts, dl-pyrrolidone carboxylate, alkylene oxide derivatives, short-chain soluble collagen, diglycerin (EO)PO adduct, Rosa illustrator extract, Yarrow extract, and Melilot extract.

[0093] Examples of coating agents include anionic coating agents (e.g., (meth)acrylic acid / (meth)acrylic acid ester copolymers, methyl vinyl ether / maleic anhydride polymers, etc.), cationic coating agents (e.g., cationized cellulose, dimethyldiallylammonium chloride polymers, dimethyldiallylammonium chloride / acrylamide copolymers, etc.), and nonionic coating agents (e.g., polyvinyl alcohol, polyvinylpyrrolidone, polyvinyl acetate, polyacrylic acid ester copolymers, (meth)acrylamide, polymeric silicones, silicone resins, trimethylsiloxysilicate, etc.). Polyvinyl acetate is particularly preferred as the coating agent.

[0094] Examples of oil-soluble UV absorbers include benzoic acid-based UV absorbers (e.g., para-aminobenzoic acid (hereinafter abbreviated as PABA), PABA monoglycerin ester, N,N-dipropoxy PABA ethyl ester, N,N-diethoxy PABA ethyl ester, N,N-dimethyl PABA ethyl ester, N,N-dimethyl PABA butyl ester, N,N-dimethyl PABA ethyl ester, diethylaminohydroxybenzoylhexyl benzoate, etc.); anthranilic acid-based UV absorbers absorbers (e.g., homomenthyl-N-acetylanthranilate, etc.); salicylic acid-based ultraviolet absorbers (e.g., ethylhexyl salicylate, amyl salicylate, menthyl salicylate, homomenthyl salicylate, octyl salicylate, phenyl salicylate, benzyl salicylate, p-isopropanol phenyl salicylate, homosalate, etc.); cinnamic acid-based ultraviolet absorbers (e.g., octyl methoxycinnamate, ethyl-4-isopropyl cinnamate, methyl-2,5 -Diisopropyl cinnamate, ethyl 2,4-diisopropyl cinnamate, methyl 2,4-diisopropyl cinnamate, propyl p-methoxycinnamate, isopropyl p-methoxycinnamate, isoamyl p-methoxycinnamate, octyl p-methoxycinnamate (2-ethylhexyl p-methoxycinnamate, ethylhexyl methoxycinnamate), 2-ethoxyethyl p-methoxycinnamate, cyclohexyl p-methoxycinnamate mate, ethyl-α-cyano-β-phenylcinnamate, 2-ethylhexyl-α-cyano-β-phenylcinnamate, glyceryl mono-2-ethylhexanoyl-di-para-methoxycinnamate, etc.; 3-(4'-methylbenzylidene)-d,l-camphor, 3-benzylidene-d,l-camphor; 2-phenyl-5-methylbenzoxazole; 2,2'-hydroxy-5-methylphenylbenzotriazole; 2-(2'-hydroxy-5'-t-octylphenyl)benzotriazole; 2-(2'-hydroxy-5'-methylphenylbenzotriazole; dibenzalazine; dianisoylmethane; 4-methoxy-4'-t-butyldibenzoylmethane; 5-(3,3-dimethyl-2-norbornylidene)-3-pentan-2-one, dimorpholinopyridazinone;2-Ethylhexyl-2-cyano-3,3-diphenylacrylate (Octocrellin); 2,4-bis-{[4-(2-ethylhexyloxy)-2-hydroxy]-phenyl}-6-(4-methoxyphenyl)-(1,3,5)-triazine, benzophenone-based ultraviolet absorbers (e.g., 2,4-dihydroxybenzophenone, 2,2'-dihydroxy-4-methoxybenzophenone, 2,2'-dihydroxy-4,4'-dimethoxybenzophenone, 2,2',4 , 4'-tetrahydroxybenzophenone, 2-hydroxy-4-methoxybenzophenone, 2-hydroxy-4-methoxy-4'-methylbenzophenone, 2-hydroxy-4-methoxybenzophenone-5-sulfonate, 4-phenylbenzophenone, 2-ethylhexyl-4'-phenyl-benzophenone-2-carboxylate, 2-hydroxy-4-n-octoxybenzophenone, 4-hydroxy-3-carboxybenzophenone, etc.);

[0095] Examples of water-soluble ultraviolet absorbers include benzophenone-based ultraviolet absorbers (e.g., 2-hydroxy-4-methoxybenzophenone-5-sulfonate, etc.), benzylidene camphor-based ultraviolet absorbers (benzylidene camphorsulfonic acid, terephthalidene discamphorsulfonic acid, etc.), and phenylbenzimidazole-based ultraviolet absorbers (phenylbenzimidazole sulfonic acid, etc.).

[0096] Examples of sequestering agents include 1-hydroxyethane-1,1-diphosphonic acid, 1-hydroxyethane-1,1-diphosphonic acid tetrasodium salt, edetate disodium, edetate trisodium, edetate tetrasodium, sodium citrate, sodium polyphosphate, sodium metaphosphate, gluconic acid, phosphoric acid, citric acid, ascorbic acid, succinic acid, edetic acid, and ethylenediaminehydroxyethyltriacetate trisodium salt.

[0097] Examples of amino acids include neutral amino acids (e.g., threonine, cysteine, etc.), basic amino acids (e.g., hydroxylysine, etc.), etc. Examples of amino acid derivatives include sodium acyl sarcosine (sodium lauroyl sarcosine), acyl glutamate, sodium acyl β-alanine, glutathione, pyrrolidone carboxylic acid, etc.

[0098] Examples of organic amines include monoethanolamine, diethanolamine, triethanolamine, morpholine, triisopropanolamine, 2-amino-2-methyl-1,3-propanediol, and 2-amino-2-methyl-1-propanol.

[0099] Examples of polymer emulsions include acrylic resin emulsion, polyethyl acrylate emulsion, acrylic resin liquid, polyacrylic alkyl ester emulsion, polyvinyl acetate resin emulsion, and natural rubber latex.

[0100] Examples of pH adjusters include buffers such as lactic acid-sodium lactate, citric acid-sodium citrate, and succinic acid-sodium succinate.

[0101] Examples of vitamins include vitamins A, B1, B2, B6, C, E and their derivatives, pantothenic acid and its derivatives, biotin, etc.

[0102] Examples of antioxidants include tocopherols, dibutylhydroxytoluene, butylhydroxyanisole, and gallic acid esters.

[0103] Examples of antioxidant aids include phosphoric acid, citric acid, ascorbic acid, maleic acid, malonic acid, succinic acid, fumaric acid, cephalin, hexametaphosphate, phytic acid, and ethylenediaminetetraacetic acid.

[0104] Other ingredients that can be added include, for example, preservatives (ethylparaben, butylparaben, chlorphenesin, phenoxyethanol, etc.); anti-inflammatory agents (for example, glycyrrhizinic acid derivatives, glycyrrhetinic acid derivatives, salicylic acid derivatives, hinokitiol, zinc oxide, allantoin, etc.); whitening agents (for example, placenta extract, saxifrage extract, arbutin, etc.); various extracts (for example, Phellodendron bark, Coptis chinensis, Lithospermum root, Peony, Swertia japonica, Birch, Sage, Loquat, Carrot, Aloe, Mallow, Iris, Grape, Job's tears, Loofah, Lily, Saffron, Cnidium rhizome, Ginger, Hypericum perforatum, Ononis, Garlic, Chili pepper, Citrus fruit, Tomato, float, seaweed, etc.), activators (e.g., royal jelly, photosensitizers, cholesterol derivatives, etc.); blood circulation promoters (e.g., nonylic acid vanillylamide, nicotinic acid benzyl ester, nicotinic acid β-butoxyethyl ester, capsaicin, zingerone, cantharides tincture, ichthammol, tannic acid, α-borneol, tocopherol nicotinate, inositol hexanicotinate, cyclandelate, cinnarizine, tolazoline, acetylcholine, verapamil, cepharanthine, γ-oryzanol, etc.); antiseborrheic agents (e.g., sulfur, thianthol, etc.); anti-inflammatory agents (e.g., tranexamic acid, thiotaurine, hypotaurine, etc.), etc.

[0105] Furthermore, the composition of the present disclosure may also contain, as appropriate, caffeine, tannin, verapamil, tranexamic acid and derivatives thereof, various herbal extracts such as licorice, Chinese quince, and Japanese anemone, drugs such as tocopherol acetate, glycyrrhesic acid, glycyrrhizic acid and derivatives thereof or salts thereof, whitening agents such as vitamin C, magnesium ascorbyl phosphate, ascorbic acid glucoside, arbutin, and kojic acid, and amino acids such as arginine and lysine and derivatives thereof.

[0106] The aqueous composition of the present disclosure can be applied to, for example, eye shadow, base makeup, foundation, mascara, and the like.

[0107] [Manufacturing method] A method for producing the aqueous composition of the present disclosure will be described. The aqueous composition of the present disclosure can be produced by a known method. For example, a first powder and liquid alcohol are mixed with water. When the aqueous composition contains a thickener, it is preferable to mix the water and the thickener first. In this way, the powder-containing composition of the present disclosure can be produced.

[0108] In the aqueous composition of the present disclosure, it may be difficult or impractical to directly identify the phase structure, etc., by the composition. In such cases, the aqueous composition of the present disclosure should be allowed to be identified by its manufacturing method.

[0109] In the aqueous composition of the present disclosure, the first powder is dispersed throughout the composition with reduced agglomeration, allowing the user to apply the first powder evenly.

[0110] The aqueous composition of the present disclosure allows the first powder to be applied uniformly to the application target (e.g., skin). That is, the aqueous composition of the present disclosure can prevent uneven application. This allows the appearance of the application area to be improved. Furthermore, the powder adheres uniformly to the application target (e.g., skin), preventing secondary adhesion to masks and clothing.

[0111] In the aqueous composition of the present disclosure, the adhesion of the first powder to the application target (for example, skin) is enhanced. Therefore, when the aqueous composition of the present disclosure is applied to the skin, for example, secondary adhesion to a mask or clothing is suppressed. As a result, when the aqueous composition of the present disclosure is applied to, for example, facial cosmetics, makeup breakdown can be suppressed when wearing a mask that covers the mouth and nose.

[0112] The aqueous composition of the present disclosure can suppress the squeaking sound caused by powder during application, thereby providing a comfortable application sensation to the user.

[0113] The aqueous composition of the present disclosure has a low content of oil and surfactant. As a result, the aqueous composition of the present disclosure can suppress the occurrence of stickiness upon application. When applied to the skin, the composition can reduce skin irritation. Furthermore, when applied to the skin, the user can feel a sense of freshness.

[0114] The aqueous composition of the present disclosure can impart a glossy finish to the area to which it is applied. [Example]

[0115] The aqueous composition of the present disclosure will be described below using examples. However, the aqueous composition of the present disclosure is not limited to the following examples. The content of each component shown in each table is in mass%.

[0116] [Test Examples 1 to 34] Aqueous compositions according to Test Examples 1 to 34 shown in Table 1 were prepared. Each aqueous composition was tested for dispersibility, lack of squeaking, uniformity of the applied film, lack of stickiness, shine on the skin, and secondary adhesion-free effect. The evaluation criteria for each test item are shown below. Tables 1 to 8 show the composition and evaluation of each aqueous composition.

[0117] [Dispersibility] The aqueous composition of each test example was allowed to stand for 10 days, and the dispersibility of the powder was confirmed. A: The powder was stably dispersed without agglomeration even after 10 days; B: After 10 days, the powder was slightly agglomerated; C: After 10 days, the powder was slightly agglomerated; D: After 1 day, the powder was clumped; E: After standing, the powder immediately aggregated.

[0118] [No creaking] A panel of 10 experts applied each aqueous composition of the test example to their arms and evaluated whether they felt any squeaking sensation when applying the composition. Each evaluation item was rated according to the number of evaluators. A: Two or fewer panels felt squeaky when applying the product; B: Three to four panelists felt a squeaking sensation when applying the product; C: Five to six panelists felt creaking when applying the product; D: Seven to eight panelists felt creaking when applying the product; E: Nine or more panelists felt a squeaking sensation when applying the coating. [Uniformity of application] A panel of 10 experts applied each aqueous composition of the test example to their arms and evaluated whether the powder was evenly applied to the skin. Each evaluation item was rated according to the number of evaluators. A: More than 9 panelists felt that the coating was evenly applied; B: Seven to eight panelists felt that the coating was evenly applied; C: Five to six panelists felt that the coating was evenly applied; D: Three to four panelists felt that the coating was evenly applied; E: Two or fewer panelists felt that the coating was evenly applied.

[0119] [Non-sticky] A panel of 10 experts applied the aqueous composition of each test example to their arms and evaluated whether the applied area was sticky. Each evaluation item was rated according to the number of evaluators. A: More than 9 panelists did not feel any stickiness; B: Seven to eight panelists did not feel sticky; C: 5-6 panelists did not feel sticky; D: Three to four panelists did not feel sticky; E: Two or fewer panelists did not feel sticky.

[0120] [Shining of the coated area] A panel of 10 experts applied each aqueous composition of the test examples to their arms and evaluated whether the applied area had a glossy finish. Each evaluation item was rated according to the number of evaluators. A: More than nine panelists felt it was glossy; B: Seven to eight panelists felt it was glossy; C: Five to six panelists felt it was glossy; D: Three to four panelists felt it was glossy; E: Two or fewer panelists felt that the surface was glossy.

[0121] [No secondary adhesion] Ten expert panelists applied the powder-containing composition of each test example to their arms, allowed it to dry, and then tapped the applied area with a nonwoven fabric 10 times. Each evaluation item was rated based on the number of evaluators who visually evaluated the degree of adhesion of the composition to the nonwoven fabric. A: Nine or more panelists evaluated that there was almost no adhesion of the composition to the nonwoven fabric; B: Seven to eight panelists evaluated that there was almost no adhesion of the composition to the nonwoven fabric; C: Five to six panelists evaluated that there was almost no adhesion of the composition to the nonwoven fabric; D: Three to four panelists evaluated that there was almost no adhesion of the composition to the nonwoven fabric; E: Two or fewer panelists evaluated that there was almost no adhesion of the composition to the nonwoven fabric.

[0122] [Test Examples 1 to 6] Aqueous compositions were prepared by varying the content of liquid polyhydric alcohol. When the liquid polyhydric alcohol was 5% by mass, the dispersibility of the powder decreased. Furthermore, more panels experienced a squeaky sensation, and fewer panels observed a gloss on the applied area. Therefore, it is considered preferable to use a liquid polyhydric alcohol content of 6% by mass or more, more preferably 8% by mass or more, and even more preferably 10% by mass or more.

[0123] A good evaluation was obtained even when the liquid polyhydric alcohol content was 25% by mass, and an even higher evaluation was obtained when the liquid polyhydric alcohol content was 20% by mass or less, preferably 16% by mass or less.

[0124] [Table 1]

[0125] [Test Examples 7-9] Aqueous compositions were prepared using different types of liquid polyhydric alcohols. All of the liquid polyhydric alcohols were evaluated favorably. In particular, the use of dihydric alcohols further reduced stickiness.

[0126] [Table 2]

[0127] [Test Examples 10-13] Aqueous compositions were prepared by varying the content of the platy powder. In Test Example 13, in which the platy powder was 25% by mass, dispersibility decreased. Furthermore, the evaluations of the absence of squeaking and the uniformity of the coating film also decreased. Therefore, it is considered that the platy powder content is preferably 22% by mass or less, and more preferably 18% by mass or less. Even 1% by mass of the platy powder was evaluated favorably.

[0128] [Table 3]

[0129] [Test Examples 14-16] Aqueous compositions were prepared by varying the blending ratio of plate-like particles (first powder) with an aspect ratio of 40 to spherical particles (second powder) with an aspect ratio of 1. Test Example 16, in which only spherical particles were blended and no plate-like particles were present, resulted in many low evaluations. Test Example 15, in which a higher proportion of spherical particles was blended relative to the plate-like powder, also resulted in low evaluations of the uniformity of the coating film and the gloss of the coated area. From this, it is considered preferable that the second powder with an aspect ratio of less than 1.2 be 1.5 parts by mass or less per 1 part by mass of the first powder with an aspect ratio of 3 or more.

[0130] [Table 4]

[0131] [Test Examples 17-26] Aqueous compositions were prepared using plate-shaped powders and block powders prepared using different hydrophobic treatment methods. All test examples were evaluated favorably. In particular, the powders treated with magnesium stearate and distearyldimonium chloride were evaluated highly.

[0132] Test Example 26, which does not contain plate-like powder but does contain clumped powder, also received a favorable evaluation.

[0133] [Table 5]

[0134] [Table 6]

[0135] [Test Examples 27-34] Aqueous compositions containing a lower monohydric alcohol and a liquid polyhydric alcohol were prepared. All compositions were evaluated as good. In particular, compositions were prepared that had better dispersibility than those rated A in Test Examples 1 to 27. In Tables 7 and 8, dispersibility was evaluated according to the following criteria.

[0136] [Dispersibility] A: Better dispersibility than that of the evaluation A in Test Examples 1 to 27 was obtained; B: Dispersibility equivalent to that of Evaluation A in Test Examples 1 to 27 was obtained.

[0137] The addition of lower monohydric alcohol improved the evaluation of powder dispersibility and secondary adhesion-free effect. Therefore, if you want to improve dispersibility and secondary adhesion-free effect, it is considered preferable to use lower monohydric alcohol in an amount of 1 mass% or more.

[0138] As the ratio of lower monohydric alcohol in the liquid alcohol increases, the absence of squeaking, the uniformity of the coating film, and the gloss of the coated area tend to decrease. Therefore, if you want to improve these evaluations, it is considered more preferable to use 1 part by mass or more of liquid polyhydric alcohol per 1 part by mass of lower monohydric alcohol.

[0139] In Test Examples 31 to 34, the powder content was made higher than in Test Examples 27 to 30, which reduced stickiness caused by polyhydric alcohol and improved the secondary adhesion-resistant effect.

[0140] When the aqueous composition contains a lower monohydric alcohol and a liquid polyhydric alcohol, it is believed that the amount of the liquid alcohol (the total amount of the lower monohydric alcohol and the liquid polyhydric alcohol) can be 30% by weight or less based on the weight of the composition.

[0141] [Table 7]

[0142] [Table 8]

[0143] The aqueous composition of the present invention has been described based on the above embodiments and examples, but is not limited to the above embodiments and examples, and may include various modifications, changes, and improvements to each disclosed element (including elements described in the claims, specification, and drawings) within the scope of the present invention and based on the basic technical idea of ​​the present invention. Furthermore, various combinations, substitutions, and selections of each disclosed element are possible within the scope of the claims of the present invention.

[0144] Further objects, purposes and modes (including modifications) of the present invention will become apparent from the entire disclosure of the present invention including the claims.

[0145] With respect to numerical ranges set forth herein, unless otherwise specified, any numerical value or range falling within that range should be construed as being specifically set forth herein.

[0146] Some or all of the above embodiments may be described as, but are not limited to, the following supplementary notes. Each supplementary note may be combined with each claim in the claims. [Appendix 1] A method for using the aqueous composition of the present disclosure, which uses the aqueous composition as an external skin preparation. [Appendix 2] A method for using the aqueous composition of the present disclosure as a cosmetic. [Industrial Applicability]

[0147] The aqueous composition of the present disclosure can be used, for example, in skin external preparations, cosmetics, cleansers, etc. For example, the aqueous composition of the present disclosure can be used in base cosmetics, top cosmetics, makeup cosmetics, antiperspirants, deodorants, sunscreen cosmetics, skin care agents, cleansers, etc.

[0148] The aqueous composition of the present disclosure can also be used as an application agent for applications other than to the skin. For example, the aqueous composition of the present disclosure can also be used as a paint, a coating agent, etc.

Claims

1. 0.5% by mass to 22% by mass of a first powder which is a non-spherical powder having hydrophobic particle surfaces; 6% to 30% by mass of liquid alcohol; 50% by mass or more of water; and at least one selected from the group consisting of PEG-240 / decyltetradeceth-20 / HDI copolymer, dimethylacrylamide / sodium acryloyldimethyltaurate crosspolymer, and polyurethane-59; the second powder being a spherical powder is 1.5 parts by mass or less relative to 1 part by mass of the first powder, The oil component is 5% by mass or less relative to the mass of the aqueous composition, An aqueous composition, wherein the surfactant is present in an amount of 0.5% by weight or less based on the weight of the aqueous composition.

2. The aqueous composition of claim 1 , wherein the first powder is at least one selected from the group consisting of a plate-like powder and a clump-like powder.

3. 3. The aqueous composition according to claim 1, wherein the first powder has an average aspect ratio of 1.5 to 170.

4. 4. The aqueous composition of claim 1, wherein the second powder has an average aspect ratio of less than 1.

2.

5. 5. The aqueous composition according to claim 1, wherein the first powder is a powder coated with at least one selected from the group consisting of higher fatty acids, metal soaps, silicone compounds, surfactants, and dextrin fatty acid esters.

6. The powder-containing composition according to any one of claims 1 to 5, wherein the liquid alcohol comprises a lower monohydric alcohol and a liquid polyhydric alcohol.

7. 7. The powder-containing composition of claim 6, wherein the lower monohydric alcohol is ethanol.

8. The aqueous composition according to any one of claims 1 to 7, wherein the liquid polyhydric alcohol is at least one selected from the group consisting of glycerin, 1,3-butylene glycol, polyethylene glycol, diglycerin, and dipropylene glycol.

9. 9. The aqueous composition according to claim 1, having a viscosity of from 1,000 mPa·s to 150,000 mPa·s.

10. The aqueous composition according to any one of claims 1 to 9, which is applied to cosmetics.

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