Skin mist cosmetic

Abstract

To provide a skin mist cosmetic that exhibits superior spray performance, allows spray at an appropriate angle when sprayed, and is easy to apply to the skin.SOLUTION: A skin mist cosmetic contains the following components (A), (B), (C), (D), and (E): (A) a water-soluble polysaccharide, (B) a silicone-based surfactant, (C) a polyhydric alcohol, (D) ethanol, and (E) water, wherein the skin mist cosmetic is packaged in a gas-free pump-type spray container.SELECTED DRAWING: None

Description

Technical Field

[0001] The present invention relates to a mist-type cosmetic for skin.

Background Art

[0002] Hyaluronic acid has a moisturizing effect and is thus used in many cosmetics. For example, Patent Document 1 describes a liquid cosmetic filled in a spray container, which is characterized by containing a specific hyaluronic acid and / or its salt.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] However, in mist-type cosmetics, when a sufficient amount of hyaluronic acid is blended to enhance the moisturizing effect, there is a problem that the viscosity increases and the sprayability deteriorates.

Means for Solving the Problems

[0005] The present inventor has found that a liquid cosmetic combined with a water-soluble polysaccharide, a silicone surfactant, a polyhydric alcohol, ethanol, and water is filled in a non-gas type pump spray container, thereby obtaining a skin mist-type cosmetic excellent in sprayability, capable of spraying at an appropriate angle when sprayed, and easy to apply to the skin.

[0006] The present invention relates to the following components (A), (B), (C), (D), and (E): (A) A water-soluble polysaccharide, (B) A silicone surfactant, (C) A polyhydric alcohol, (D) Ethanol, (E) Water It relates to a skin mist cosmetic containing

Effects of the Invention

[0007] The skin mist cosmetic of the present invention is excellent in sprayability, can be sprayed at an appropriate angle when sprayed, and is easy to apply to the skin. It also has an excellent moisturizing effect. In addition, spraying at an appropriate angle when spraying prevents the cosmetic from adhering to unintended parts when the spray angle is too wide, and also prevents the "dripping" of the cosmetic due to concentrated adhesion to a specific part when the spray angle is too narrow, and can also reduce the difficulty of spreading the cosmetic.

Modes for Carrying Out the Invention

[0008] The water-soluble polysaccharide of component (A) is not limited as long as it is used in ordinary cosmetics, and it may be derived from natural products or obtained by chemical synthesis.

[0009] In addition, polysaccharide derivatives obtained by bonding an alkyl group, a hydroxyalkyl group, a polyalkylene oxide group such as a polyethylene oxide group or a polypropylene oxide group, saccharides such as glucose, lactose, sucrose, or a polymer having these saccharides as structural units to a part of the sugar of the polysaccharide are also included in the polysaccharide of component (A) as those equivalent to polysaccharides.

[0010] Specifically, for example, locust bean gum, guar gum, tamarind gum, gum derived from quince seeds, gum arabic, tragacanth gum, karaya gum, carrageenan, alginic acid, pectin, hydroxypropyl guar gum, methylcellulose, hydroxyethylcellulose, hydroxypropylcellulose, hydroxypropylmethylcellulose, carboxymethylcellulose, tuberose polysaccharide, xanthan gum, polysaccharide produced by Alcaligenes latus, gellan gum, dextran, pullulan, hyaluronic acid or its salts, chondroitin sulfate, dermatan sulfate, chitin, chitosan and other mucopolysaccharides can be mentioned. Among these, from the viewpoint of improving the moisturizing feeling, it is preferable to contain one or more selected from carrageenan, hydroxypropylmethylcellulose, hyaluronic acid or its salts, and it is more preferable to contain at least hyaluronic acid or its salts.

[0011] Component (A) can be used in combination of one or more, and the content is preferably 0.0001 to 0.08% by mass, more preferably 0.0003 to 0.05% by mass, still more preferably 0.0004 to 0.03% by mass, and still more preferably 0.0005 to 0.008% by mass in the total composition from the viewpoints of improving the moisturizing feeling, reducing the viscosity, and spraying at an appropriate angle when spraying.

[0012] Examples of the silicone surfactant of component (B) include polyether-modified silicone, etc. For example, polyether-modified silicone with a linear silicone chain such as PEG-3 dimethicone, PEG-10 dimethicone, PEG-12 dimethicone, PEG-11 methyl ether dimethicone; polyether-modified silicone with a branched silicone chain such as PEG-9 polydimethylsiloxyethyl dimethicone; polyether-alkyl co-modified silicone with a linear silicone chain such as cetyl PEG / PPG-10 / 1 dimethicone; polyether-alkyl co-modified silicone with a branched silicone chain such as lauryl PEG-9 polydimethylsiloxyethyl dimethicone, etc. can be mentioned.

[0013] Examples of commercially available polyether-modified silicones with a linear silicone chain include silicone SH3775M (manufactured by Dow Corning), which is PEG-12 dimethicone; silicone KF6043 (manufactured by Shin-Etsu Chemical Co., Ltd.), which is PEG-10 dimethicone; silicone KF6015 (manufactured by Shin-Etsu Chemical Co., Ltd.), which is PEG-3 dimethicone; silicone KF6011 (manufactured by Shin-Etsu Chemical Co., Ltd.), which is PEG-11 methyl ether dimethicone, and the like. Examples of commercially available polyether-modified silicones with a branched silicone chain include silicone KF-6028 (manufactured by Shin-Etsu Chemical Co., Ltd.), which is PEG-9 polydimethylsiloxyethyl dimethicone, and the like. Examples of commercially available polyether-alkyl co-modified silicones with a linear silicone chain include KF-6048 (manufactured by Shin-Etsu Chemical Co., Ltd.), which is cetyl PEG / PPG-10 / 1 dimethicone; ABIL EM90 (manufactured by Deggusa), and the like. Examples of commercially available polyether-alkyl co-modified silicones with a branched silicone chain include silicone KF-6038 (manufactured by Shin-Etsu Chemical Co., Ltd.), which is lauryl PEG-9 polydimethylsiloxyethyl dimethicone, and the like.

[0014] From the viewpoint of reducing surface tension, component (B) preferably contains one or more selected from polyether-modified silicones with a linear silicone chain and polyether-modified silicones with a branched silicone chain, more preferably contains one or more selected from polyether-modified silicones with a linear silicone chain, still more preferably contains one or more selected from PEG-10 dimethicone and PEG-11 methyl ether dimethicone, and even more preferably contains PEG-11 methyl ether dimethicone.

[0015] Component (B) can be used alone or in combination of two or more. From the viewpoints of reducing surface tension, reducing viscosity, and spraying at an appropriate angle when sprayed, the content is preferably 0.005 to 0.5% by mass, more preferably 0.01 to 0.3% by mass, and still more preferably 0.02 to 0.1% by mass in the total composition.

[0016] In the present invention, the mass ratio (A) / (B) of component (A) to component (B) is preferably from 0.0002 to 16, more preferably from 0.001 to 5, still more preferably from 0.005 to 0.5, and even more preferably from 0.01 to 0.4, from the viewpoints of improving the moisturizing feeling, reducing the viscosity, reducing the surface tension, and spraying at an appropriate angle when spraying.

[0017] The polyhydric alcohol of component (C) is a compound having two or more hydroxyl groups in the molecule, and any one can be used as long as it is used in ordinary cosmetics. Examples of the dihydric alcohol include polyethylene glycol, propylene glycol, dipropylene glycol, tripropylene glycol, polypropylene glycol, 1,3-butylene glycol, propanediol, etc. Examples of the trihydric alcohol include glycerin, trimethylolpropane, etc. Examples of the tetrahydric alcohol include diglycerin, erythritol, etc. Examples of the polyhydric alcohol having five or more valences include polyglycerins such as triglycerin; saccharides and sugar alcohols such as glucose, maltose, maltitol, sucrose, xylitol, sorbitol, maltitol, polyoxyethylene methyl glucoside, polyoxyethylene ethyl glucoside, and polyoxyethylene propylene glucoside.

[0018] From the viewpoint of improving the moisturizing feeling, the polyhydric alcohol preferably contains one or more selected from dihydric alcohols, trihydric alcohols, tetrahydric alcohols, and sugar alcohols, more preferably contains one or more selected from dihydric alcohols, trihydric alcohols, and tetrahydric alcohols, still more preferably contains one or more selected from propanediol, dipropylene glycol, 1,3-butylene glycol, glycerin, and diglycerin, even more preferably contains one or more selected from dipropylene glycol, 1,3-butylene glycol, and glycerin, and most preferably contains at least 1,3-butylene glycol and glycerin.

[0019] Component (C) can be used in combination of one or more kinds. From the viewpoints of improving the moisturizing feeling, reducing the viscosity, and spraying at an appropriate angle when spraying, the content is preferably 0.5 to 10% by mass, more preferably 1 to 8% by mass, and even more preferably 2 to 6% by mass in the whole composition.

[0020] In the present invention, from the viewpoints of improving the moisturizing feeling, reducing the viscosity, reducing the surface tension, and spraying at an appropriate angle when spraying, the ethanol content of component (D) is preferably 3 to 20% by mass, more preferably 6 to 15% by mass, and even more preferably 8 to 12% by mass in the whole composition.

[0021] In the present invention, from the viewpoints of improving the moisturizing feeling, reducing the viscosity, reducing the surface tension, and spraying at an appropriate angle when spraying, the mass ratio (A) / (D) of component (A) to component (D) is preferably 0.00001 to 0.03, more preferably 0.00002 to 0.01, and even more preferably 0.00005 to 0.003.

[0022] In the present invention, from the viewpoints of improving the moisturizing feeling, reducing the viscosity, and spraying at an appropriate angle when spraying, the water content of component (E) is preferably 65 to 96% by mass, more preferably 75 to 93% by mass, and even more preferably 80 to 90% by mass in the whole composition.

[0023] The cosmetic of the present invention can further contain a nonionic surfactant having an HLB of 10 or more other than component (B), and can spray the mist at a more appropriate angle when spraying. The nonionic surfactant of component (F) has an HLB of 10 or more. From the viewpoint of spraying at an appropriate angle when spraying, the HLB is preferably 11 to 18, and more preferably 12 to 17. Here, the HLB (Hydrophilic-Lipophilic Balance) indicates the molecular weight of the hydrophilic group portion in the total molecular weight of the surfactant and is determined by the Griffin's formula. Also, when composed of two or more nonionic surfactants, the HLB of the mixed surfactant is determined as follows. The HLB of the mixed surfactant is the weighted average of the HLB values of each nonionic surfactant based on its blending ratio. Mixed HLB = Σ(HLBx × Wx) / ΣWx HLBx indicates the HLB value of nonionic surfactant X. Wx indicates the mass (g) of nonionic surfactant X having the value of HLBx.

[0024] Examples of such nonionic surfactants include polyoxyethylene hydrogenated castor oil, polyoxyethylene sorbitan fatty acid ester, polyoxyethylene alkyl ether, polyoxyethylene fatty acid ester, polyoxyethylene alkanol ether, polyglycerin fatty acid ester, sucrose fatty acid ester, etc. Among these, from the viewpoint of spraying at an appropriate angle when sprayed, it is preferably included one or more selected from polyoxyethylene hydrogenated castor oil and polyoxyethylene sorbitan fatty acid ester, and more preferably includes polyoxyethylene hydrogenated castor oil.

[0025] Further, in polyoxyethylene hydrogenated castor oil, the average added mole number of the polyoxyethylene chain constituting the polyoxyethylene hydrogenated castor oil is preferably 25 to 100, more preferably 35 to 85, still more preferably 45 to 75, even more preferably 55 to 65, and most preferably 60 from the viewpoint of spraying at an appropriate angle when sprayed. When containing polyoxyethylene hydrogenated castor oil, from the viewpoints of spraying at an appropriate angle when sprayed and reducing viscosity, the content is preferably 0.05 to 1% by mass in the total composition, more preferably 0.1 to 0.7% by mass, and still more preferably 0.2 to 0.5% by mass.

[0026] In the polyoxyethylene sorbitan fatty acid ester, from the viewpoint of spraying the mist at a more appropriate angle when sprayed, the average number of added moles of the polyoxyethylene chain constituting the polyoxyethylene sorbitan fatty acid ester is preferably 10 to 30, more preferably 15 to 25, and even more preferably 20. In the polyoxyethylene sorbitan fatty acid ester, from the viewpoint of spraying at an appropriate angle when sprayed, the number of carbon atoms of the alkyl group constituting the polyoxyethylene sorbitan fatty acid ester is preferably 10 to 25, and more preferably 12 to 18. When containing polyoxyethylene sorbitan fatty acid ester, from the viewpoint of reducing viscosity and spraying at an appropriate angle when sprayed, the content is preferably 0.005 to 1% by mass in the total composition, more preferably 0.01 to 0.5% by mass, and even more preferably 0.05 to 0.2% by mass.

[0027] The nonionic surfactant of component (F) can be used alone or in combination of two or more. From the viewpoint of reducing viscosity and spraying at an appropriate angle when sprayed, the content is preferably 0.05 to 2% by mass in the total composition, more preferably 0.1 to 1.2% by mass, and even more preferably 0.25 to 0.7% by mass.

[0028] From the viewpoint of stability, the content of the oil agent in the skin mist cosmetic of the present invention is preferably 0.5% by mass or less, more preferably 0.3% by mass or less, even more preferably 0.1% by mass or less, and even more preferably not contained in the total composition.

[0029] In addition to the above components, the skin mist cosmetic of the present invention can contain components usually used in cosmetics, such as surfactants other than the components (B) and (F), antioxidants, fragrances, preservatives, pH adjusters, blood circulation promoters, cooling agents, antiperspirants, bactericides, skin activators, moisturizing agents other than the components (A) and (C), refreshing agents, and the like.

[0030] From the viewpoints of reducing viscosity and spraying at an appropriate angle when sprayed, the content of the total surfactant containing components (B) and (F) in the skin mist cosmetic of the present invention is preferably 2.5% by mass or less, more preferably 1.3% by mass or less, and even more preferably 0.8% by mass or less in the total composition.

[0031] From the viewpoint of spraying at an appropriate angle when sprayed, the viscosity of the skin mist cosmetic of the present invention at 25°C is preferably 0.1 to 8 mPa·s, more preferably 0.3 to 3.5 mPa·s, even more preferably 0.5 to 3 mPa·s, and still more preferably 1 to 2.5 mPa·s. The viscosity is measured at 25°C using a vibrating viscometer VISCOMATE VM-10A (manufactured by SEKONIC).

[0032] From the viewpoint of spraying at an appropriate angle when sprayed, the surface tension of the skin mist cosmetic of the present invention at 25°C is preferably 25 to 45 mN / m, more preferably 28 to 41 mN / m, even more preferably 30 to 40.5 mN / m, and still more preferably 32 to 40 mN / m. The surface tension is measured at 25°C using a contact angle meter Drop Master-701 (manufactured by Kyowa Interface Science Co., Ltd.) by the pendant drop method.

[0033] The skin mist cosmetic of the present invention can be produced according to a conventional method. For example, component (A) is uniformly dispersed in a part of component (C) to obtain a polysaccharide dispersion. Components (B), (C), (D) and other components are added to component (E), and after stirring, the polysaccharide dispersion is added, and further stirred to make it uniform, and then filled into a non-gas type pump spray container to obtain a skin mist cosmetic.

[0034] The skin mist cosmetic of the present invention is filled in a non-gas type pump spray container, and is preferably filled in a non-gas type pump spray container having a nozzle diameter of 0.5 mm or less. The spray container filled with the skin mist cosmetic of the present invention is not a gas aerosol type such as liquefied petroleum gas. As the spray container, a dispenser, an air spray (a high-pressure container that compresses air), a spray container using rubber elasticity, an electric spray, a manual atomizer, etc. can be used. In the spray container used in the present invention, from the viewpoint of spraying the cosmetic in a mist form and spraying it at an appropriate angle when spraying, and from the viewpoint of improving the quick-drying property after spraying and applying it to the skin, the nozzle diameter (diameter) is preferably 0.5 mm or less, more preferably 0.4 mm or less, and even more preferably 0.3 mm or less. Further, the lower limit of the nozzle diameter is preferably 0.05 mm or more, more preferably 0.1 mm or more, and even more preferably 0.2 mm or more from the viewpoint of spraying at an appropriate angle when spraying and improving the quick-drying property after spraying and applying it to the skin.

[0035] The spray container of the skin mist cosmetic of the present invention is preferably provided with a spraying means such that the average particle diameter of the spray droplets at a point 15 cm away from the injection port in the injection direction is 50 to 100 μm, more preferably 60 to 90 μm, and even more preferably 65 to 85 μm, from the viewpoint of spraying at an appropriate angle when spraying and from the viewpoint of improving the quick-drying property after spraying and applying it to the skin. The particle size distribution of the spray droplets can be measured, for example, by a laser diffraction particle size distribution analyzer Spraytec (manufactured by Malvern Panalytical).

[0036] The skin mist cosmetic of the present invention can be used as a cosmetic that imparts a refreshing feeling to the skin, a deodorant agent, a moisturizing agent, and an insect repellent, and is preferably used as a moisturizing agent. Particularly when applied to the skin, the mist can be uniformly applied over a wide range such as the front of the body, the entire arm, the back, the sides to the flanks, the head, the feet, and the legs, and the mist dries quickly, and since the moisturizing agent remains on the skin, it is useful as a cosmetic excellent in quick-drying property and moisturizing effect.

Examples

[0037] Examples 1 to 6, Comparative Example 1 A skin mist cosmetic having the composition shown in Table 1 was manufactured, and its viscosity, surface tension, and injection angle were measured. The results are shown together with Table 1.

[0038] (Manufacturing method) At 25°C, component (A) was uniformly dispersed in a part of component (C) to obtain a polysaccharide dispersion. To component (E), components (B), (C), (D), (F), and the other remaining components were added. After stirring, the polysaccharide dispersion was added, and after further stirring to make it uniform, it was filled into a pump-type spray container (manufactured by Yoshino Kogyosho Co., Ltd., model number YS-90 Φ0.26) to obtain a skin mist cosmetic.

[0039] (Evaluation method) (1) Viscosity: Using a vibrating viscometer VISCOMATE VM-10A (manufactured by SEKONIC), the measurement was carried out under the condition of a measurement temperature of 25°C.

[0040] (2) Surface tension: Using a contact angle meter Drop Master-701 (manufactured by Kyowa Interface Science Co., Ltd.), the measurement was carried out by the sessile drop method (pendant drop method) under the condition of a measurement temperature of 25°C.

[0041] (3) Injection angle: In a constant temperature room at 25°C, each skin mist cosmetic was filled into a container (model number YS-90 Φ0.26) manufactured by Yoshino Kogyosho Co., Ltd. and placed on a flat surface. A camera was installed at a position 30 cm away from the injection direction of the injection port of the container horizontally. At the same time as injecting the skin mist cosmetic once, an image was taken. From the image, the angle of the injection range of the skin mist cosmetic was measured. The injection angle measured in this way is preferably 59 - 85°, more preferably 60 - 80°, still more preferably 62 - 75°, and even more preferably 65 - 70° from the viewpoints of being easy to apply to the skin and improving the moisturizing feeling.

[0042]

Table 1

[0043] *1 Sodium hyaluronate (molecular weight 50,000 - 110,000): Hyaluronic acid FCH (FCH - SU) (manufactured by Kikkoman Biochemifa Co., Ltd.), *2 Sodium hyaluronate (molecular weight 1,000,000 - 1,400,000): Hyaluronic acid FCH (FCH - 120) (manufactured by Kikkoman Biochemifa Co., Ltd.), *3 Hydroxypropyl methylcellulose: Methocel 60SH - 4000 (manufactured by Shin-Etsu Chemical Co., Ltd.), *4 Hydroxypropyl methylcellulose: Methocel 60SH - 10000 (manufactured by Shin-Etsu Chemical Co., Ltd.), *5 Carrageenan: Carraginin CS - 67(N) (manufactured by San-Ei Gen F.F.I., Inc.), *6 PEG - 11 methyl ether dimethicone: KF - 6011 (manufactured by Shin-Etsu Chemical Co., Ltd.), *7 Ethanol: 95% synthetic alcohol (manufactured by Nippon Synthetic Alcohol Co., Ltd.), *8 Polyoxyethylene hydrogenated castor oil (60 E.O.): NIKKOL HCO - 60 (for pharmaceutical use) (manufactured by Nippon Surfactant Industry Co., Ltd.) HLB 14.0, *9 Polyoxyethylene coconut oil fatty acid sorbitan (20 E.O.): Leodol TW - L120 (manufactured by Kao Corporation) HLB 16.7

[0044] Formulation Examples 1 - 2 The skin mist cosmetics with the compositions shown in Tables 2 - 3 are manufactured in the same manner as in Examples 1 - 6. All of the skin mist cosmetics are excellent in sprayability, can be sprayed at an appropriate angle when sprayed, and are easy to apply to the skin. Also, they have excellent moisturizing effects.

[0045]

Table 2

[0046]

Table 3

Claims

Claim 1 The following components (A), (B), (C), (D) and (E): (A) A water-soluble polysaccharide (B) A silicone surfactant (C) A polyhydric alcohol (D) Ethanol (E) Water A skin mist cosmetic containing the above components and filled in a non-gas type pump spray container. Claim 2 The skin mist cosmetic according to Claim 1, wherein the mass ratio (A) / (B) of component (A) to component (B) is 0.0002 to 16. Claim 3 The skin mist cosmetic according to Claim 1 or 2, wherein the mass ratio (A) / (D) of component (A) to component (D) is 0.00001 to 0.

03. Claim 4 The skin mist cosmetic according to Claim 1 or 2, wherein the content of component (A) is 0.0001 to 0.08% by mass. Claim 5 The skin mist cosmetic according to Claim 1 or 2, wherein the content of component (B) is 0.005 to 0.5% by mass. Claim 6 The skin mist cosmetic according to Claim 1 or 2, further containing (F) a nonionic surfactant having an HLB of 10 or more other than component (B).

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