阅读说明：本技术 含有粉体的水系组合物和皮肤外用剂 (Aqueous composition containing powder and external preparation for skin ) 是由 寺田智明 高桥希佳 间中勇太 木村元春 于 2018-07-03 设计创作，主要内容包括：本发明提供即使粉体的含量高,粉体的稳定性和分散性也高、且发粘感低的水系的含有粉体的组合物。该含有粉体的水系组合物含有：(A)成为连续相的水相、(B)10质量%~45质量%的粉体、和(C)0.7质量%以上的增稠剂。增稠剂为具有2-丙烯酰胺-2-甲基磺酸或其盐作为构成成分的聚合物。相对于组合物的质量,油性成分为15质量%以下。(The invention provides an aqueous powder-containing composition which has high powder stability and dispersibility and low sticky feeling even if the powder content is high. The powder-containing aqueous composition contains: (A) an aqueous phase which becomes a continuous phase, (B)10 to 45 mass% of a powder, and (C)0.7 mass% or more of a thickener. The thickener is a polymer having 2-acrylamido-2-methanesulfonic acid or a salt thereof as a constituent. The oily component is 15% by mass or less based on the mass of the composition.)

1. An aqueous composition containing a powder, the composition comprising:

(A) an aqueous phase which becomes a continuous phase,

(B)10 to 45 mass% of a powder, and

(C) 0.7% by mass or more of a thickener,

the thickener is a polymer having 2-acrylamido-2-methanesulfonic acid or a salt thereof as a constituent,

the oily component is 15% by mass or less based on the mass of the composition.

2. The composition of claim 1, wherein the aforementioned thickener comprises at least one selected from the group consisting of: (Acrylyldimethyltaurate/beheneth-25 methacrylate) crosspolymer, (Acrylyldimethyltaurate/vinylpyrrolidone) copolymer, and (Acrylyldimethyltaurate/dimethylacrylamide) crosspolymer.

3. The composition according to claim 1 or 2, wherein the content of the thickener is 3% by mass or less with respect to the mass of the composition.

4. The composition according to any one of claims 1 to 3, wherein the viscosity after 2 weeks from the production of the composition is 20,000mPa seeds or more.

5. The composition according to any one of claims 1 to 4, further comprising 50% by mass or less of a water-soluble alcohol based on the mass of the composition.

6. The composition according to any one of claims 1 to 5, wherein the content of the oily component is 5% by mass or less based on the mass of the composition.

7. The composition according to any one of claims 1 to 6, wherein when the oily component is contained, the content of the surfactant for emulsifying the oily component is 1% by mass or less relative to the mass of the composition.

8. The composition according to any one of claims 1 to 7, wherein the content of the aqueous phase is 40% by mass or more relative to the mass of the composition.

9. The composition according to any one of claims 1 to 8, further comprising a volatile oily component,

the powder is porous, and the powder is porous,

at least a part of the oily component is impregnated in the powder.

10. An external preparation for skin comprising the composition according to any one of claims 1 to 9.

Technical Field

The present disclosure relates to a powder-containing aqueous composition containing particles in an aqueous solvent. In particular, the present invention relates to a composition in which a powder is dispersed in an aqueous solvent. In addition, the present disclosure relates to a skin external preparation having the composition.

Background

In products such as cosmetics, inks, ceramics, etc., compositions containing particles in a solvent are sometimes used. For example, cosmetics containing powder are known (for example, see patent documents 1 and 2).

Patent document 1 discloses a composition containing, in a medium acceptable as a cosmetic product, at least: a) at least one aqueous phase; b) composite particles A in spherical form having an average particle diameter of between 0.1 and 30 [ mu ] m, comprising at least one particulate UV screening agent and a core consisting of at least one inorganic material and/or at least one organic material; and c) monomer particles B of an inorganic UV screening agent having an average primary particle diameter of more than 0.07 μm.

Patent document 2 discloses an oil-in-water cosmetic composition containing: (A) a crosslinked polymer comprising 2-acrylamido-2-methylpropanesulfonic acid or a salt thereof, (meth) acrylic acid and/or an ester thereof, and N, N-dimethylacrylamide as constituent units, (B) 0.2 to 3 mass% of an aqueous component of one or more of an inorganic salt and an organic salt, and (C) about 14 mass% of a powder. The oil-in-water cosmetic contains about 20% by mass of an oil phase emulsified by a surfactant.

Disclosure of Invention

Problems to be solved by the invention

In the water-in-oil emulsion type cosmetic composition described in patent document 1, high dispersion stability of the powder can be obtained even if the content of the powder is high. However, the oil-based composition is likely to be sticky to the user (user). For example, the oil-based composition is not suitable for application to a cleansing composition requiring a refreshing feel after use.

On the other hand, in an aqueous composition, it is generally difficult to stably disperse a high content of powder. The oil-in-water type cosmetic composition described in patent document 2 contains about 14 mass% of the powder, but the content of the oil phase is high, and the user feels sticky as in the oil composition. If the oil phase is removed so as not to cause stickiness, the stability and dispersibility of the powder are lost. In addition, in the oil-in-water type cosmetic composition described in patent document 2, if the content of the powder is further increased, the stability and dispersibility of the powder are lost.

Therefore, an aqueous powder-containing composition having high powder dispersibility and stability and low sticky feeling even when the powder content is high is desired.

Means for solving the problems

According to the 1 st aspect of the present disclosure, there is provided an aqueous composition containing a powder, the composition containing: (A) an aqueous phase which becomes a continuous phase, (B)10 to 45 mass% of a powder, and (C)0.7 mass% or more of a thickener. The thickener is a polymer having 2-acrylamido-2-methanesulfonic acid or a salt thereof as a constituent. The oily component is 15% by mass or less based on the mass of the composition.

According to the 2 nd aspect of the present disclosure, there is provided an external preparation for skin containing the powder-containing aqueous composition according to the 1 st aspect.

Effects of the invention

According to the present invention, an aqueous composition having high powder stability and dispersibility can be provided even when the powder content is high.

In the composition of the present disclosure, even if the content of the powder is high, the content of the oily component may be low. This can suppress the sticky feeling when applied to the skin.

Detailed Description

Preferred embodiments from the above viewpoints are described below.

According to a preferred embodiment of the above aspect 1, the thickener contains at least one selected from the group consisting of: (Acrylyldimethyltaurate/beheneth-25 methacrylate) crosspolymer, (Acrylyldimethyltaurate/vinylpyrrolidone) copolymer, and (Acrylyldimethyltaurate/dimethylacrylamide) crosspolymer.

According to a preferred embodiment of the above aspect 1, the content of the thickener is 3% by mass or less based on the mass of the composition.

According to the preferred embodiment of the above viewpoint 1, the viscosity of the composition after 2 weeks from the preparation of the composition is 20,000mPa, seeds or more.

According to a preferred embodiment of the above aspect 1, the composition further contains 50% by mass or less of a water-soluble alcohol based on the mass of the composition.

According to a preferred embodiment of the above aspect 1, the content of the oily component is 5% by mass or less based on the mass of the composition.

According to a preferred embodiment of the above aspect 1, when the oily component is contained, the content of the surfactant for emulsifying the oily component is 1% by mass or less based on the mass of the composition.

According to a preferred embodiment of the above aspect 1, the content of the aqueous phase is 40% by mass or more based on the mass of the composition.

According to a preferred embodiment of the above aspect 1, the composition further contains a volatile oily component. The powder is porous. At least a part of the oily component is impregnated in the powder.

In the following description, POE is abbreviated as polyoxyethylene, and POP is abbreviated as polyoxypropylene. The number in parentheses after POE or POP indicates the average molar number of addition of the POE group or POP group in the compound.

The powder-containing aqueous composition of the present disclosure contains: (A) an aqueous phase which becomes a continuous phase, (B) a powder, and (C) a thickener. The term "aqueous" means that the main phase is an aqueous phase, and does not mean that an oily component (oil phase) is not contained.

[ (A) aqueous phase ]

The aqueous phase may be used as a dispersion medium for the powder. The aqueous phase may, for example, contain water, water-soluble alcohols, or mixtures thereof. The aqueous phase particularly preferably contains water.

The content of water may be 40 mass% or more, 50 mass% or more, 60 mass% or more, or 70 mass% or more with respect to the mass of the composition. The content of water is preferably determined as appropriate depending on the purpose and use of the powder-containing aqueous composition.

As the water, water used in cosmetics, quasi drugs, and the like can be used, and for example, purified water, ion-exchanged water, tap water, and the like can be used.

Examples of the water-soluble alcohol include at least one selected from the group consisting of: lower alcohols, polyols, polyol polymers, glycol alkyl ethers, glycol ether esters, glycerol monoalkyl ethers, sugar alcohols, monosaccharides, oligosaccharides, polysaccharides, and derivatives thereof, and the like.

Examples of the lower alcohol include at least one selected from the group consisting of: ethanol, propanol, isopropanol, isobutanol, tert-butanol, and the like.

Examples of the polyol include at least one selected from the group consisting of: dihydric alcohols (e.g., ethylene glycol, propylene glycol, trimethylene glycol, 1, 2-butanediol, 1, 3-butanediol, tetramethylene glycol, 2, 3-butanediol, pentamethylene glycol, 2-butene-1, 4-diol, hexylene glycol, octanediol, etc.); trihydric alcohols (e.g., glycerin, trimethylolpropane, etc.); tetrahydric alcohols (e.g., pentaerythritol such as diglycerin and 1,2, 6-hexanetriol); pentahydric alcohols (e.g., xylitol, triglycerin, etc.); hexahydric alcohols (e.g., sorbitol, mannitol, etc.); polyol polymers (e.g., diethylene glycol, dipropylene glycol, triethylene glycol, polypropylene glycol, tetraethylene glycol, diglycerin, polyethylene glycol, triglycerol, tetraglycerol, polyglycerin, and the like); 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.); glycol 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, and the like); glycol 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.); glycerol monoalkyl ethers (e.g., chimyl alcohol, selachyl alcohol, batyl alcohol, etc.); sugar alcohols (e.g., sorbitol, maltitol, maltotriose, mannitol, sucrose, erythritol, glucose, fructose, amylolytic sugars, maltose, xylose (xylitose), amylolytic sugar reducing alcohols, etc.); glysolid (グリソリッド); tetrahydrofurfuryl alcohol; POE-tetrahydrofurfuryl alcohol; POP-butyl ether; POP/POE-butyl ether; glyceryl tripropylene oxide ether; POP-glycerol ether; POP-glycerol ether phosphate; POP/POE-pentaerythritol ether, polyglycerol, etc.

Examples of the monosaccharide include at least one selected from the group consisting of: three-carbon sugars (e.g., D-glyceraldehyde, dihydroxyacetone, etc.), four-carbon sugars (e.g., D-erythrose, D-erythrulose, D-threose, erythritol, etc.), five-carbon sugars (e.g., L-arabinose, D-xylose, L-lyxose, D-arabinose, D-ribose, D-ribulose, D-xylulose, L-xylulose, etc.), six-carbon sugars (e.g., D-glucose, D-talose, D-psicose, D-galactose, D-fructose, L-galactose, L-mannose, D-tagatose, etc.), seven-carbon sugars (e.g., heptose, heptulose (ヘプロース), etc.), eight-carbon sugars (e.g., octulose, etc.), deoxy sugars (e.g., 2-deoxy-D-ribose, D-talose, etc.), deoxy sugars (e.g., D-arabinose, D-xylulose, etc.) 6-deoxy-L-galactose, 6-deoxy-L-mannose, etc.), aminosugars (e.g., D-glucosamine, D-galactosamine, sialic acid, aminouronic acid, muramic acid, etc.), uronic acids (e.g., D-glucuronic acid, D-mannuronic acid, L-guluronic acid, D-galacturonic acid, L-iduronic acid, etc.), and the like.

Examples of the oligosaccharide include at least one selected from the following: sucrose, gentianose, umbelliferone, lactose, plantago, iso-chironose, and,α,αTrehalose, raffinose, custard, umbilicin (ウンビリシン), stachyose, verbascose, and the like.

Examples of the polysaccharide include at least one selected from the group consisting of: cellulose, quince seed, chondroitin sulfate, starch, galactan, dermatan sulfate, glycogen, gum arabic, heparan sulfate, hyaluronic acid, tragacanth gum, keratan sulfate, chondroitin, xanthan gum, mucin sulfate, guar gum, dextran, cutin sulfate, locust bean gum, succinoglycan, carotinoid, gellan gum, tremella polysaccharide (シロキクラゲ polysaccharide), and the like.

Examples of the other polyol include at least one selected from the group consisting of: polyoxyethylene methyl glucoside (Glucam E-10), polyoxypropylene methyl glucoside (Glucam P-10), and the like.

In the case of applying the composition of the present disclosure to a skin external preparation, as the water-soluble alcohol, for example, there can be suitably used: ethanol, glycerol, propylene glycol, dipropylene glycol, and the like.

The content of the water-soluble alcohol is, for example, preferably 50% by mass or less, more preferably 30% by mass or less, and further preferably 20% by mass or less, based on the mass of the composition. If the content of the water-soluble alcohol exceeds 50 mass%, the alcoholic smell becomes strong. In addition, when the composition of the present disclosure is applied to an external preparation for skin, the irritation to the skin becomes too strong.

The content of the aqueous phase may be 40 mass% or more, 50 mass% or more, 60 mass% or more, or 70 mass% or more with respect to the mass of the composition. The content of the aqueous phase is preferably determined as appropriate depending on the purpose and use of the powder-containing aqueous composition and the content of other components.

[ (B) powder ]

The composition of the present disclosure contains more than one powder. The term "powder" is used synonymously with "powder" in the present specification. The powder is not particularly limited as long as it is a powder that can be generally used for cosmetic applications and the like. Examples of the powder include: talc, kaolin, Sericite (Sericite), muscovite, phlogopite, synthetic mica, synthetic fluorophlogopite iron, 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, ceramic powder, metal soap (e.g., zinc myristate, calcium palmitate, aluminum stearate, etc.), boron nitride, photochromic titanium oxide (titanium dioxide obtained by sintering iron oxide), reduced zinc oxide; organic powders (for example, silicone elastomer powder, silicone resin-coated silicone elastomer powder, polyamide resin powder (nylon powder), polyethylene powder, polystyrene powder, copolymer resin powder of styrene and acrylic acid, benzoguanamine resin powder, polytetrafluoroethylene powder, cellulose powder, and the like); inorganic white pigments (e.g., titanium dioxide, zinc oxide, etc.); inorganic red pigments (e.g., iron oxide (red iron oxide), iron titanate, etc.); an inorganic brown pigment (for example,γiron oxide, etc.); inorganic yellow pigments (e.g., yellow iron oxide, yellow soil, etc.); inorganic black pigments (e.g., black iron oxide, low-valent titanium oxide, etc.); inorganic violet pigments (e.g., manganese violet, cobalt violet, etc.); inorganic green pigments (e.g., chromium oxide, chromium hydroxide, cobalt titanate, etc.); inorganic blue pigments (e.g., ultramarine blue and berlin blue)Etc.); a pearlescent pigment (for example, bismuth oxychloride, fish scale foil (fish foil), mica titanium, iron oxide-coated mica titanium, titanium suboxide-coated mica titanium, photochromic mica titanium, a product obtained by using talc, glass, synthetic fluorophlogopite, silica, bismuth oxychloride or the like as a substrate in place of mica, a product obtained by coating titanium oxide in addition to titanium oxide with a suboxide, colored titanium oxide, iron oxide, alumina, silica, zirconium oxide, zinc oxide, cobalt oxide, aluminum or the like, a functional pearlescent pigment (a product obtained by coating a surface of a pearlescent pigment with resin particles, aluminum hydroxide particles, zinc oxide particles, barium sulfate particles or the like); metal powder pigments (e.g., aluminum powder, copper powder, etc.); organic pigments such as zirconium, barium, or aluminum lakes (e.g., organic pigments such as red 201, red 202, red 204, red 205, red 220, red 226, red 228, red 405, orange 203, orange 204, yellow 205, yellow 401, and blue 404, red 3, red 104, red 106, red 227, red 230, red 401, red 505, orange 205, yellow 4, yellow 5, yellow 202, yellow 203, green 3, and blue 1); natural pigments (e.g., chlorophyll, B-D),βCarotene, etc.), and the like.

The average particle diameter, specific surface area, specific gravity, particle shape, porosity or nonporous property, presence or absence of surface treatment, and the like of the powder can be appropriately selected according to the purpose. The powder can be a mixture of different kinds.

The content of the powder is preferably 10% by mass or more, more preferably 15% by mass or more, and still more preferably 20% by mass or more, based on the mass of the composition. The content of the powder may be 25 mass% or more, 30 mass% or more, or 35 mass% or more with respect to the mass of the composition. If the content of the powder is less than 10 mass%, the powder is aggregated more, and a stable state cannot be maintained. The content of the powder is preferably 45 mass% or less, more preferably 40 mass% or less, with respect to the mass of the composition. If the content of the powder exceeds 45 mass%, the viscosity becomes too high, and mixing becomes difficult. The content of the powder may be, for example, 35 mass% or less, 30 mass% or less, 25 mass% or less, or 20 mass% or less with respect to the mass of the composition.

[ (C) thickener ]

The compositions of the present disclosure contain a thickening agent. As the thickener, for example, there can be used: a taurine salt-based synthetic polymer and/or an acrylate-based synthetic polymer.

For example, as the taurate-based polymer-based thickener, there can be used: a polymer and/or copolymer (including a crosslinked polymer) having 2-acrylamido-2-propanesulfonic acid (acryloyldimethyltaurine) or a salt thereof (AMPS structure) as a constituent unit. As such a thickener, for example, at least one selected from the following can be used: (Acrylyldimethyltauryl/beheneth-25 methacrylate) crosslinked polymer (Aristoflex (registered trademark) HMB, Clariant Japan Co., Acrylyldimethyltauryl/vinylpyrrolidone) copolymer (Aristoflex (registered trademark) AVC, Clariant Japan Co., Acrylyldimethyltauryl/carboxyethyl acrylate) crosslinked polymer (Aristoflex (registered trademark) TAC, Clariant Japan Co., Ltd.), polyacrylate crosslinked polymer-11 (Aristoflex (registered trademark) Velvet, Clariant Japan Co., Dimethylacrylamide/Acrylyldimethyltauryl) crosslinked polymer (SU-GEL, Dongbo Chemicals Co., hydroxyethyl acrylate/Acrylyldimethyltauryl) copolymer (SEPINOV EMT10, SEPPIC Co., Acrylate/Acrylyldimethyltauryl/dimethylacrylamide) crosslinked polymer Examples of the acrylic acid copolymer include (SEPINOV P88, SEPPIC), sodium acrylate/sodium acryloyldimethyl taurate) copolymer (SIMULGEL EG, SEPPIC), hydroxyethyl acrylate/sodium acryloyldimethyl taurate) copolymer (SIMULGEL NS, SEPPIC), sodium acryloyldimethyl taurate/methacrylamidoic acid) copolymer (AMO-51, DaDonghua Chemical industries Co., Ltd.), and (acrylamide/sodium acryloyldimethyl taurate/acrylic acid) copolymer (Accudyne (registered trademark) SCP, Dow Chemical Co., Ltd.).

Among the thickeners, from the viewpoint of dispersibility and stability of the powder, the thickener preferably contains at least one selected from the group consisting of: (Acrylyldimethyltaurate/beheneth-25 methacrylate) crosspolymer, (Acrylyldimethyltaurate/vinylpyrrolidone) copolymer, and (Acrylyldimethyltaurate/dimethylacrylamide) crosspolymer.

Other thickeners may be added within the range not impairing the effect of the present invention. Examples of other thickeners include: gum arabic, carrageenan, karaya gum, tragacanth gum, carob gum, quince seed (marmelo), casein, dextrin, gelatin, sodium pectate, sodium alginate, methyl cellulose, ethyl cellulose, carboxymethyl cellulose (CMC), hydroxyethyl cellulose, hydroxypropyl cellulose, polyvinyl alcohol (PVA), polyvinyl methyl ether (PVM), PVP (polyvinylpyrrolidone), sodium polyacrylate, carboxyvinyl polymer, locust bean gum, guar gum, tamarind gum, dialkyl dimethyl ammonium cellulose sulfate, xanthan gum, magnesium aluminum silicate, bentonite, hectorite, magnesium aluminum silicate (Veegum), synthetic clay (Laponite), silicic anhydride, gellan gum, tremella polysaccharide (シロキクラゲ polysaccharide), and the like.

The thickener is preferably 0.7% by mass or more, more preferably 0.8% by mass or more, based on the mass of the composition. If the thickener is less than 0.7 mass%, the stability of the powder is lowered. The thickener is preferably 3% by mass or less, more preferably 2% by mass or less, and further preferably 1.5% by mass or less, based on the mass of the composition. If the thickener exceeds 3 mass%, the stickiness upon application to the skin becomes high.

[ oily component ]

The compositions of the present disclosure may contain oily ingredients. The compositions of the present disclosure may also be oil-in-water compositions. The oily component used in the present invention is not particularly limited as long as it is an oily component that can be generally used in an external skin preparation or a cosmetic product. Specifically, there may be mentioned: liquid oils and fats, solid oils and fats, waxes, hydrocarbons, higher fatty acids, higher alcohols, synthetic ester oils, silicone oils, perfumes, and the like. In the present specification, the oil component and the component soluble in the oil component are also collectively referred to as "oily component".

Examples of the liquid fat and oil include: avocado oil, camellia oil, turtle oil, macadamia nut oil, corn oil, mink oil, olive oil, rapeseed oil, egg yolk oil, sesame oil, peach kernel oil (almond oil), wheat germ oil, camellia oil, castor oil, linseed oil, safflower oil, cottonseed oil, perilla oil, soybean oil, peanut oil, tea seed oil, torreya oil, rice bran oil, china tung oil, japanese tung oil, jojoba oil, germ oil, triglycerin, and the like.

Examples of the solid fat and oil include: cocoa butter, coconut oil, horse oil, hydrogenated coconut oil, palm oil, beef tallow, mutton tallow, hydrogenated beef tallow, palm kernel oil, lard, beef bone fat (oil), beeswax core oil, hydrogenated oil, neatsfoot oil, beeswax, hydrogenated castor oil, and the like.

Examples of the waxes include: beeswax, candelilla wax, cotton wax, carnauba wax, bayberry wax, insect wax (white wax), spermaceti wax, montan wax, rice bran wax, lanolin, kapok wax, lanolin acetate, liquid lanolin, sugarcane wax, isopropyl ester of lanolin fatty acids, hexyl laurate, reduced lanolin, jojoba wax, hard lanolin, shellac wax, POE lanolin alcohol ether, POE lanolin alcohol acetate, POE cholesterol ether, polyethylene glycol ester of lanolin fatty acids, POE hydrogenated lanolin alcohol ether, and the like.

Examples of the hydrocarbon oil include: liquid paraffin, ceresin, squalane, pristane, paraffin, ceresin, squalene, vaseline, microcrystalline wax, isododecane, isohexadecane, etc.

Examples of the higher fatty acid include: lauric acid, myristic acid, palmitic acid, stearic acid, behenic acid (ベヘン acid), oleic acid, undecylenic acid, tall acid, isostearic acid, linoleic acid, linolenic acid, eicosapentaenoic acid (EPA), docosahexaenoic acid (DHA), and the like.

Examples of the higher alcohol include: linear alcohols (e.g., lauryl alcohol, cetyl alcohol, stearyl alcohol, behenyl alcohol, myristyl alcohol, oleyl alcohol, cetearyl alcohol, etc.); branched alcohols (e.g., monostearyl glyceryl ether (batyl alcohol), 2-decyltetradecanol, lanolin alcohol, cholesterol, phytosterol, hexyldodecanol, isostearyl alcohol, octyldodecanol, etc.), and the like.

Examples of the synthetic ester oil include: isopropyl myristate, cetyl octanoate, octyl dodecyl myristate, isopropyl palmitate, butyl stearate, hexyl laurate, myristyl myristate, decyl oleate, hexyl decyl dimethyloctanoate, cetyl lactate, myristyl lactate, lanolin acetate, isocetyl stearate, isocetyl isostearate, cholesteryl 12-hydroxystearate, ethylene glycol di-2-ethylhexanoate, dipentaerythritol fatty acid ester, N-alkylglycol monoisostearate, neopentyl glycol didecanoate, diisostearyl malate, di-2-heptylundecyl glyceride, trimethylolpropane tri-2-ethylhexanoate, trimethylolpropane triisostearate, pentaerythritol tetra-2-ethylhexanoate, glycerol tri-2-ethylhexanoate, isopropyl myristate, octyl dodecyl myristate, hexyl laurate, hexyl myristate, decyl oleate, hexyl oleate, decyl oleate, hexyl stearate, decyl oleate, hexyl stearate, octyl stearate, glyceryl tricaprylate, glyceryl triisopalmitate, trimethylolpropane triisostearate, cetyl 2-ethylhexanoate, 2-ethylhexyl palmitate, glyceryl trimyristate, glyceryl tri-2-heptylundecanoate, methyl ricinoleate, oleyl oleate, glyceryl acetoacetate, 2-heptylundecylpalmitate, diisobutyl adipate, N-lauroyl-L-glutamic acid-2-octyldodecyl ester, di-2-heptylundecyladipate, ethyl laurate, di-2-ethylhexyl sebacate, 2-hexyldecyl myristate, 2-hexyldecyl palmitate, 2-hexyldecyl adipate, diisopropyl sebacate, 2-ethylhexyl succinate, trimethylolpropane triisostearate, glycerol stearate, glycerol palmitate, glycerol myristate, glycerol laurate, glycerol stearate, Triethyl citrate, and the like.

Examples of the silicone oil include: and organic silicon compounds such as dimethylpolysiloxane, methylhydrogenpolysiloxane, methylphenylpolysiloxane, stearyloxymethylpolysiloxane, polyether-modified organopolysiloxane, fluoroalkyl/polyoxyalkylene co-modified organopolysiloxane, alkyl-modified organopolysiloxane, terminal-modified organopolysiloxane, fluorine-modified organopolysiloxane, amino-modified organopolysiloxane, silica gel, acrylic silicone (acrylic polysiloxane, アクリルシリコーン), trimethylsiloxysilicate, silicone RTV rubber, and the like.

The content of the oily component may be, for example, 15 mass% or less, 10 mass% or less, or 5 mass% or less with respect to the mass of the composition. The composition may be substantially free of oily components (0 mass%). When applied to the skin, it is preferable to reduce the amount of oily components, particularly nonvolatile oily components, in order to suppress the sticky feeling.

The oily components in the compositions of the present disclosure may not be emulsified. In the composition of the present disclosure, the stability and dispersibility of the powder can be ensured even without emulsified oily components. The level of surfactant used to emulsify the oil phase may be reduced by reducing the level of oily components and/or by not using emulsification. This can suppress the occurrence of stickiness.

The oil component may be impregnated into the porous powder and added thereto. For example, by allowing a volatile oil component such as a perfume to be absorbed into the porous powder, the oil component can be volatilized from the powder after the powder is applied (smeared) on the skin. When the powder is impregnated with an oily component, stickiness can be suppressed. In the present disclosure, "volatile" means readily volatile at room temperature, outdoor temperature, and/or body temperature when applied to the skin.

[ other ingredients ]

The composition of the present disclosure may contain other components such as an ester, an anionic surfactant, a cationic surfactant, an amphoteric surfactant, a nonionic surfactant, a humectant, a water-soluble polymer, a coating agent, an ultraviolet absorber, a metal ion-blocking agent, an amino acid, an organic amine, a polymer emulsion, a pH adjuster, a skin nutrient, a vitamin, an antioxidant auxiliary, a perfume, water, and the like as necessary within a range not to impair the effects of the present invention.

Examples of other components that may be blended are given below. At least one of the following ingredients may be added to the compositions of the present disclosure.

Examples of the anionic surfactant include: fatty acid soaps (e.g., sodium laurate, sodium palmitate, etc.); higher alkyl sulfate ester salts (e.g., sodium lauryl sulfate, potassium lauryl sulfate, etc.); alkyl ether sulfate ester salts (e.g., POE-triethanolamine lauryl sulfate, POE-sodium lauryl sulfate, etc.); n-acyl sarcosines (A), (B), (C), (For example, sodium lauroyl sarcosinate, etc.); higher fatty acid amide sulfonates (e.g., sodium N-myristoyl-N-methyltaurate, sodium coconut fatty acid methyltaurate, sodium lauryl methyltaurate, etc.); phosphate ester salts (POE-oleyl ether sodium phosphate, POE-stearyl ether phosphoric acid, etc.); sulfosuccinates (e.g., sodium di-2-ethylhexyl sulfosuccinate, sodium monolauroyl monoethanolamide polyoxyethylene sulfosuccinate, sodium lauryl polypropylene glycol sulfosuccinate, and the like); alkyl benzene sulfonates (e.g., linear sodium dodecylbenzene sulfonate, linear triethanolamine dodecylbenzene sulfonate, linear dodecylbenzene sulfonic acid, etc.); higher fatty acid ester sulfate salts (e.g., sodium hydrogenated coconut oil fatty acid glyceride sulfate); n-acyl glutamate (e.g., monosodium N-lauroyl glutamate, disodium N-stearoyl glutamate, monosodium N-myristoyl-L-glutamate, etc.); sulfated oils (e.g., turkish red oil (ロート oil), etc.); POE-alkyl ether carboxylic acids, POE-alkyl allyl ether carboxylates;α-an olefin sulfonate; higher fatty acid ester sulfonates; secondary alcohol sulfate salts; higher fatty acid alkanolamide sulfate salts; lauroyl monoethanolamide sodium succinate; n-palmitoyl aspartic acid di-triethanolamine; sodium caseinate, and the like.

Examples of the cationic surfactant include: alkyltrimethylammonium salts (e.g., stearyltrimethylammonium chloride, lauryltrimethylammonium chloride, etc.); alkylpyridinium salts (e.g., cetylpyridinium chloride, etc.); dialkyl dimethyl ammonium salts (e.g., distearyl dimethyl ammonium chloride, etc.); poly (N, N' -dimethyl-3, 5-methylenepiperidinium chloride); alkyl quaternary ammonium salts; alkyl dimethyl benzyl ammonium salts; an alkylisoquinolinium salt; a dialkyl morpholinium salt; POE-alkylamine; an alkylamine salt; polyamine fatty acid derivatives; amyl alcohol fatty acid ester derivatives; benzalkonium chloride; benzethonium chloride, and the like.

Examples of the amphoteric surfactant include: imidazoline-based amphoteric surfactants (e.g., 2-undecyl-N, N, N- (hydroxyethylcarboxymethyl) -2-imidazolinium sodium, 2-cocoyl-2-imidazolinium hydroxide-1-carboxyethoxy disodium salt, etc.); betaine-type surfactants (e.g., 2-heptadecyl-N-carboxymethyl-N-hydroxyethyl imidazolinium betaine, lauryl dimethylaminoacetic acid betaine, alkyl betaine, amidobetaine, sulfobetaine, etc.), and the like.

Examples of the lipophilic nonionic surfactant include sorbitan fatty acid esters (e.g., sorbitan monooleate, sorbitan monoisostearate, sorbitan monolaurate, sorbitan monopalmitate, sorbitan monostearate, sorbitan sesquioleate, sorbitan trioleate, sorbitan penta-2-ethylhexanoate, and sorbitan tetra-2-ethylhexanoate diglyceride), polyglycerol fatty acid esters (e.g., cottonseed oil fatty acid glyceride, erucic acid glyceride, sesquioleic acid glyceride, glyceryl monostearate, α' -oleic acid pyroglutamic acid glyceride, and glycerol malic acid monostearate), propylene glycol fatty acid esters (e.g., propylene glycol monostearate), hydrogenated castor oil derivatives, and glycerol alkyl ethers.

Examples of the hydrophilic nonionic surfactant 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 (for example, POE-monooleate such as POE-glycerin monostearate, POE-glycerin monoisostearate and POE-glycerin triisostearate); POE-fatty acid esters (e.g., POE-distearate, POE-monooleate, 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-cholestane alcohol 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-glyceryl ether, etc.); a tetrapolye/tetrapod-ethylenediamine condensate (e.g., Tetronic, etc.); POE-castor oil hydrogenated castor oil derivatives (e.g., POE-castor oil, POE-hydrogenated castor oil monoisostearate, POE-hydrogenated castor oil triisostearate, POE-hydrogenated castor oil monopyroglutamic acid monoisostearic acid diester, POE-hydrogenated castor oil maleate, etc.); POE-beeswax/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 ester; POE-alkylamine; POE-fatty acid amide; sucrose fatty acid ester; alkyl ethoxy dimethyl amine oxide; triolein phosphate and the like.

Examples of the humectant include: polyethylene glycol, propylene glycol, glycerin, 1, 3-butylene glycol, xylitol, sorbitol, maltitol, chondroitin sulfate, hyaluronic acid, mucin sulfate, carotinoid acid, atelocollagen, 12-hydroxystearic acid cholesteryl ester, sodium lactate, bile acid salts, dl-pyrrolidone carboxylic acid salts, Alkylene oxide derivatives (Alkylene oxide derivatives), short-chain soluble collagen, diglycerol (EO) PO adducts, rosa roxburghii extract, yarrow extract, sweet clover extract, and the like.

Examples of the natural water-soluble polymer include: plant-based polymers (e.g., gum arabic, gum tragacanth, galactan, guar gum, carob gum, karaya gum, carrageenan, pectin, agar, quince seed (marmelo), algae colloid (brown algae extract), starch (rice, corn, potato, wheat), glycyrrhizic acid); microbial polymers (e.g., xanthan gum, dextran, succinoglycan, pullulan, etc.); animal polymers (e.g., collagen, casein, albumin, gelatin, etc.), and the like.

Examples of the semisynthetic water-soluble polymer include: starch-based polymers (e.g., carboxymethyl starch, methylhydroxypropyl starch, etc.); cellulose polymers (methyl cellulose, ethyl cellulose, methylhydroxypropyl cellulose, hydroxyethyl cellulose, sodium cellulose sulfate, hydroxypropyl cellulose, carboxymethyl cellulose, sodium carboxymethyl cellulose, crystalline cellulose, cellulose powder, etc.); alginic acid polymers (e.g., sodium alginate, propylene glycol alginate, etc.), and the like.

Examples of the water-soluble polymer to be synthesized include: vinyl polymers (e.g., polyvinyl alcohol, polyvinyl methyl ether, polyvinyl pyrrolidone, carboxyvinyl polymer, etc.); polyoxyethylene polymers (e.g., polyoxyethylene polyoxypropylene copolymers of polyethylene glycol 20,000, 40,000, 60,000, etc.); acrylic polymers (for example, sodium polyacrylate, polyethylacrylate, polyacrylamide, etc.); a polyethyleneimine; cationic polymers, and the like.

Examples of the ultraviolet absorber include: benzoic acid-based ultraviolet absorbers (for example, p-aminobenzoic acid (hereinafter abbreviated as PABA), PABA monoglyceride, N-dipropoxypaba ethyl ester, N-diethoxypaba ethyl ester, N-dimethylpaba butyl ester, N-dimethylpaba ethyl ester, etc.); anthranilic acid-based ultraviolet absorbers (e.g., homomenthyl N-acetyl anthranilate); salicylic acid-based ultraviolet absorbers (e.g., amyl salicylate, menthyl salicylate, homomenthyl salicylate, octyl salicylate, phenyl salicylate, benzyl salicylate, p-isopropyl phenyl salicylate, etc.); cinnamic acid-based ultraviolet absorbers (for example, octyl methoxycinnamate, ethyl 4-isopropylcinnamate, methyl 2, 5-diisopropylcinnamate, ethyl 2, 4-diisopropylcinnamate, methyl 2, 4-diisopropylcinnamate, propyl p-methoxycinnamate, isopropyl p-methoxycinnamate, isoamyl p-methoxycinnamate, octyl p-methoxycinnamate (2-ethylhexyl p-methoxycinnamate), 2-ethoxyethyl p-methoxycinnamate, cyclohexyl p-methoxycinnamate,α-cyano-β-ethyl phenylcinnamate,α-cyano-β2-ethylhexyl phenyl cinnamate, mono-2-ethylhexanoyl-di-p-methoxycinnamate, etc.); benzophenone-based ultraviolet absorbers (e.g., 2, 4-dihydroxybenzophenone, 2 '-dihydroxy-4-methoxybenzophenone, 2' -dihydroxy-4, 4 '-dimethoxybenzophenone, 2',4,4 '-tetrahydroxybenzophenone, 2-hydroxy-4-methoxybenzophenone, 2-hydroxy-4-methoxy-4' -methylbenzophenoneKetones, 2-hydroxy-4-methoxybenzophenone-5-sulfonate, 4-phenylbenzophenone, 2-ethylhexyl-4' -phenyl-benzophenone-2-carboxylate, 2-hydroxy-4-n-octyloxybenzophenone, 4-hydroxy-3-carboxybenzophenone, and the like); 3- (4' -methylbenzylidene) -d, l-camphor, 3-benzylidene-d, l-camphor; 2-phenyl-5-methylbenzoxazole; 2,2' -hydroxy-5-methylphenylbenzotriazole; 2- (2 '-hydroxy-5' -tert-octylphenyl) benzotriazole; 2- (2' -hydroxy-5 ' -methylphenylbenzotriazole, dibenzylhydrazine (dibenzazine), dianisiloylmethane (dianisoyl methane), 4-methoxy-4 ' -tert-butyldibenzoylmethane, 5- (3, 3-dimethyl-2-norbornylidene) -3-pentan-2-one, dimorpholinopyridazinone, 2-ethylhexyl-2-cyano-3, 3-diphenylacrylate, 2, 4-bis- { [4- (2-ethylhexyloxy) -2-hydroxyben-zyl]-phenyl } -6- (4-methoxyphenyl) - (1,3,5) -triazine and the like.

Examples of the metal ion-blocking agent 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, ethylenediamine hydroxyethyltriacetic acid trisodium salt, and the like.

Examples of the amino acid include: neutral amino acids (e.g., threonine, cysteine, etc.); basic amino acids (e.g., hydroxylysine, etc.), and the like. Examples of the amino acid derivative include: sodium acyl sarcosinate (sodium lauroyl sarcosinate), acyl glutamate, and acyl groupβSodium alaninate, glutathione, pyrrolidone carboxylic acid, and the like.

Examples of the organic amine include: monoethanolamine, diethanolamine, triethanolamine, morpholine, triisopropanolamine, 2-amino-2-methyl-1, 3-propanediol, 2-amino-2-methyl-1-propanol, and the like.

Examples of the polymer emulsion include: acrylic resin emulsion, polyethylacrylate emulsion, acrylic resin solution, polyalkylacrylate emulsion, polyvinyl acetate resin emulsion, natural rubber latex, and the like.

Examples of the pH adjuster include: and buffers such as sodium lactate-lactate, sodium citrate-citrate, and sodium succinate-succinate.

Examples of the vitamins include: vitamins A, B1, B2, B6, C, E and derivatives thereof, pantothenic acid and derivatives thereof, biotin, and the like.

Examples of the antioxidant include: tocopherols, dibutylhydroxytoluene, butylhydroxyanisole, gallic acid esters, etc.

Examples of the antioxidant auxiliary include: phosphoric acid, citric acid, ascorbic acid, maleic acid, malonic acid, succinic acid, fumaric acid, cephalin, hexametaphosphate, phytic acid, ethylenediaminetetraacetic acid, and the like.

Examples of other components that can be blended include: preservatives (ethyl, butyl, chlorphenesin, phenoxyethanol, etc.); anti-inflammatory agents (e.g., glycyrrhizic acid derivatives, glycyrrhetinic acid derivatives, salicylic acid derivatives, hinokitiol, zinc oxide, allantoin, etc.); whitening agents (e.g., placenta extract, saxifrage extract, arbutin, etc.); various extracts (e.g., phellodendron amurense, coptis chinensis, lithospermum, paeonia lactiflora, swertia japonica, birch (birch), sage, loquat, ginseng, aloe, mallow, orris, grape, coix seed, luffa, lily, saffron, ligusticum wallichii, pinecone, hypericum erectum, formononetin, garlic, capsicum, dried orange peel, angelica, seaweed, etc.), activators (e.g., royal jelly, photosensitizer, cholesterol derivative, etc.); blood circulation promoter (e.g., vanillylnonanamide (ノニル acid ワレニルアミド), benzyl nicotinate, nicotinic acidβ-butoxyethyl ester, capsaicin, zingerone, cantharides tincture, ichthammol, tannic acid,α-borneol (borneol), tocopherol nicotinate, inositol hexanicotinate, cyclamate, cinnarizine, tolazoline, acetylcholine, verapamil, cepharanthine, vitamin E,γ-oryzanol, etc.); anti-lipping agents (e.g., sulfur, dithioanthracene, etc.); anti-inflammatory agents (e.g., tranexamic acid, thiotaurine, hypotaurine, etc.), and the like.

Further, the composition of the present disclosure may also suitably contain: caffeine, tannin, verapamil, tranexamic acid and its derivatives, various herbal extracts (crude drug) such as licorice, pyrus ussuriensis (カリン), Japanese pyrola, tocopherol acetate, glycyrrhizin (glycyrrhizic acid), glycyrrhizic acid and its derivatives or its salts, whitening agents such as vitamin C, magnesium ascorbyl phosphate, ascorbyl glucoside, arbutin, kojic acid, and amino acids and its derivatives such as arginine and lysine.

The content of the surfactant is, for example, preferably 5% by mass or less, more preferably 3% by mass or less, more preferably 1% by mass or less, and further preferably 0.5% by mass or less, relative to the mass of the composition. The composition may also be substantially free of surfactant. The composition preferably contains substantially no surfactant for emulsifying oily components. By reducing the content of the surfactant, stickiness caused when the composition is applied to the skin can be suppressed.

The composition of the present disclosure can ensure the stability and dispersibility of the powder even if it does not contain an inorganic salt such as sodium chloride or an organic salt such as sodium citrate (excluding a thickener) for improving the stability and dispersibility of the powder. The content of such salts (excluding the thickener) may be 0.5% by mass or less, 0.2% by mass or less, 0.1% by mass or less, or 0% by mass relative to the mass of the composition.

The viscosity 2 weeks after the production of the composition of the present disclosure is preferably 8,000mPa, seeds or more, more preferably 12,000mPa, seeds or more, and more preferably 15,000mPa, seeds or more. If the viscosity is less than 8,000mPa, the seeds are not full, the workability may be lowered. The viscosity of the composition is preferably 300,000mPa seeds or less, more preferably 200,000mPa seeds or less. If the viscosity exceeds 300,000mPa, seeds, it is difficult to apply the composition of the present disclosure to the skin uniformly. The viscosity of the composition may be 150,000mPa, or less, 100,000mPa, or less, or 80,000mPa, or less, or 50,000mPa, or less. The viscosity is preferably measured according to JISZ 8803.

The skin external preparation of the present disclosure is explained. The external preparation for skin of the present disclosure contains the aqueous composition containing a powder of the present disclosure. The external preparation for skin may contain the above-mentioned desired additives. Examples of the external preparation for skin include: face washing agent, skin care product, sunscreen product, cosmetic, perfume (Fragrance), etc.

According to the aqueous composition and the external preparation for skin containing the powder of the present disclosure, the content of the powder can be increased while maintaining the stability and dispersibility of the powder at a high level even in an aqueous system. The stability and the dispersibility of the powder have persistence. Since the composition of the present disclosure can reduce the contents of the oil phase and the surfactant, the sticky feeling upon application to the skin can be suppressed. By increasing the content of the powder, the powder can be left on the skin even if the composition applied to the skin is wiped off. Since various powders can be applied to the composition and the external preparation for skin of the present disclosure, the kind of the powder can be selected according to the purpose.

The method for producing the powder-containing aqueous composition and the external preparation for skin of the present disclosure will be described. The powder-containing aqueous composition and the external preparation for skin of the present disclosure can be produced by mixing an aqueous phase, a powder and a thickener. For example, the thickener is first dissolved in the aqueous phase. Next, the powder is added to the aqueous phase and mixed, whereby the powder-containing aqueous composition and the external skin preparation of the present disclosure can be produced.

When the porous powder is impregnated with the oil component, it is preferable to add the powder containing the oil component to the solvent (aqueous phase) after the powder is impregnated with the oil component.