JP2022174965A - emulsified cosmetic - Google Patents

Abstract

To provide an emulsified cosmetic that is easily spreadable during application, does not feel sticky, does not give a dry feeling after application, does not turn pale, and has excellent irregularity covering power.SOLUTION: Provided is an emulsified cosmetic comprising the following components (A), (B), and (C): (A) a composite powder comprising spherical silica and titanium oxide and having a volume average particle size of 1 to 50 μm; (B) titanium oxide or zinc oxide having an average particle size of 0.001 to 0.5 μm; and (C) volatile oil.SELECTED DRAWING: None

Description

TECHNICAL FIELD The present invention relates to emulsified cosmetics.

Conventionally, cosmetics that cover irregularities on the skin and provide a bright finish have been studied.
For example, Patent Document 1 discloses a water-in-oil emulsified cosmetic containing a vinyl polymer, boron nitride, and a volatile oil. It is described that aggregation is suppressed, the skin after application is finished smooth and smooth, the skin looks uniform, and the finish is bright.

Japanese Patent Application Laid-Open No. 2016-88848

However, when conventional cosmetics contain fine particles of titanium oxide and volatile oil, there are problems such as a feeling of stickiness during application, a feeling of dryness after application, and a pale and smooth finish. .

The present inventors found that by using a combination of fine particles of titanium oxide or zinc oxide, a volatile oil, and a specific composite powder, it is easy to spread during application, there is no feeling of stoppage, and a feeling of dryness occurs after application. The present inventors have found that an emulsified cosmetic that does not turn pale, does not become pale, and has excellent unevenness covering power can be obtained.

The present invention provides the following components (A), (B) and (C):
(A) a composite powder containing spherical silica and titanium oxide and having a volume average particle size of 1 to 50 μm;
(B) titanium oxide or zinc oxide having an average particle size of 0.001 to 0.5 μm;
(C) It relates to emulsified cosmetics containing volatile oil.

The emulsified cosmetic of the present invention is easily spreadable on the skin, does not leave a dry feeling during application, does not dry the skin after application, and has excellent unevenness covering power.
The expression "no feeling of stickiness during application" means that fingers slide very well while the emulsified cosmetic is being applied to the skin, and the user can comfortably massage the skin to the end without feeling the finger sticking.

Component (A) used in the present invention is a composite powder containing (A1) spherical silica and (A2) titanium oxide.
In the present invention, the term "spherical" includes a true sphere, a substantially spherical shape, and a spheroid, and may be a spherical powder having an uneven surface.
The spherical silica (A1) serving as the base preferably has a volume average particle diameter of 1 to 50 μm, more preferably 1 to 40 μm, from the viewpoint of uniformly applying the emulsified cosmetic to the skin and improving the unevenness covering power. 1 to 30 μm is more preferable, and 2 to 10 μm is even more preferable.
Here, the volume average particle diameter is a value measured with a laser diffraction scattering type particle size distribution analyzer (LMS-350, manufactured by Seishin Enterprise Co., Ltd.) using ethanol as a dispersion medium. The volume-average particle diameter is the volume-based average particle diameter, and is defined as a 50% median diameter.
The content of spherical silica in the composite powder is preferably 1 to 95% by mass, more preferably 40 to 92% by mass, even more preferably 60 to 90% by mass.

Titanium oxide (A2) may be pigment-grade titanium oxide or fine-particle titanium oxide, and fine-particle titanium oxide is preferable from the viewpoint of improving unevenness covering power and suppressing dry feeling, and contains at least fine-particle titanium oxide. is preferred.
Titanium oxide (A2) has a number average particle size of preferably 1 to 1000 nm, more preferably 3 to 500 nm, and even more preferably 5 to 100 nm, from the viewpoint of improving unevenness covering power and suppressing dryness. , 8 to 50 nm is even more preferred.
Here, the number average particle size is a value obtained as an arithmetic mean of the long axis and short axis of the particles from a transmission electron microscope photograph.
Titanium oxide (A2) preferably has a specific surface area of 15 to 100 m ² /g, more preferably 18 to 95 m ² /g, from the viewpoint of improving unevenness covering power and suppressing dry feeling.
Here, the specific surface area means the surface area per unit mass, and in the present invention means the specific surface area obtained by the BET method (N2).
The content of titanium oxide in the composite powder is preferably 5 to 99% by mass, more preferably 8 to 60% by mass, even more preferably 10 to 40% by mass.

In the composite powder of component (A), the mass ratio (A1)/(A2) of the base spherical silica (A1) to the titanium oxide (A2) is from the viewpoint of improving the unevenness covering power and suppressing dryness. Therefore, it is preferably 0.01 to 19, more preferably 0.67 to 11.5, even more preferably 1.5 to 9, and even more preferably 2 to 6.

The composite powder of component (A) preferably contains spherical silica as a matrix and contains at least microparticles of titanium oxide. The spherical silica particles contain the microparticles of titanium oxide and/or the surface of the particles is dotted with the microparticles of titanium oxide. Then, the fine particles of titanium oxide may be dispersed in the spherical silica particles or may be present on the particle surfaces.
The composite powder of component (A) is preferably one in which fine particles of titanium oxide are included in spherical silica particles from the viewpoint of improving unevenness covering power and suppressing dry feeling.
In addition, the composite powder of component (A) may contain components other than spherical silica and microparticles of titanium oxide, such as microparticles of zinc oxide and iron oxide.
In addition, the composite powder of component (A) is preferably spherical from the viewpoint of improving the unevenness covering power and uniformly applying the emulsified cosmetic to the skin.

Component (A) is preferably a spherical composite powder of spherical silica containing titanium oxide.
The volume average particle diameter of the composite powder is 1 to 50 μm, 1 to 40 μm, from the viewpoint of improving the adhesion of the powder to the skin, natural covering power on the skin, and suppressing dryness after application. is preferred, 1 to 30 μm is more preferred, and 2 to 10 μm is even more preferred.
The volume average particle size of the composite powder is measured by the same method as for component (A1).

The composite powder of component (A) can be produced, for example, by adding a silica sol containing spherical silica as a matrix to a dispersion of titanium oxide or the like and water, followed by firing and/or mixing and granulation. .
The composite powder of component (A) is preferably obtained by sintering.

Further, as the composite powder of component (A), for example, Inaflex IWS22S13 (manufactured by Nippon Sheet Glass Co., Ltd., volume average particle diameter: 4 μm, silica in the composite powder (volume average particle diameter 4 μm) 78% by mass, titanium oxide 22% by mass), SUNSIL TIN 50 (manufactured by SUNJIN CHEMICAL, volume average particle size: 5 μm, silica in composite powder (volume average particle size 5 μm) 58% by mass, titanium oxide (number average particle size 12 nm) 42% by mass ), SUNSIL TIN 40 (manufactured by SUNJIN CHEMICAL, volume average particle size: 5 μm, silica in composite powder (volume average particle size 5 μm) 70% by mass, titanium oxide (number average particle size 12 nm) 30% by mass), SH219 (manufactured by SUNJIN CHEMICAL, volume average particle size: 5 μm, silica in composite powder (volume average particle size 5 μm), titanium oxide (number average particle size 12 nm)), PC ball WT-35H (manufactured by Suzuki Yushi Kogyo Co., Ltd., Volume average particle size: 3 μm, silica in composite powder (volume average particle size: 3 μm): 65% by mass, particulate titanium oxide: 35% by mass) and other commercially available products can be used.

The composite powder of component (A) can be used alone or in combination of two or more. From the viewpoint of suppressing the dry feeling of the total composition, it is preferably 0.1% by mass or more, more preferably 0.2% by mass or more, further preferably 0.3% by mass or more, and 15% by mass or less. Preferably, it is 10% by mass or less, and even more preferably 7% by mass or less. The content of component (A) is preferably 0.1 to 15% by mass, more preferably 0.2 to 10% by mass, and even more preferably 0.3 to 7% by mass in the total composition.

Component (B) used in the present invention is titanium oxide or zinc oxide having an average particle size of 0.001 to 0.5 μm.
The titanium oxide in the composite powder of component (A) is not included in component (B).
Here, the average particle diameter is measured by electron microscopic observation and a particle size distribution measuring device based on a laser diffraction/scattering method. Specifically, in the case of the laser diffraction/scattering method, measurement is performed with a laser diffraction/scattering particle size distribution analyzer (for example, Sympatec's HELOS & RODOS) at a dry dispersion pressure of 0.1 bar.

The component (B) preferably contains titanium oxide or zinc oxide with an average particle size of 0.005 to 0.1 μm from the viewpoint of imparting natural covering power to the skin. More preferably, it contains 0.08 μm titanium oxide or zinc oxide.
Moreover, titanium oxide and zinc oxide can be used in combination as the component (B).
The content of component (B) is preferably 1% by mass or more, more preferably 5% by mass or more, still more preferably 10% by mass or more, further preferably 40% by mass in the total composition from the viewpoint of imparting natural covering power to the skin. % or less, more preferably 30 mass % or less, and even more preferably 20 mass % or less. The content of component (B) is preferably 1 to 40% by mass, more preferably 5 to 30% by mass, and even more preferably 10 to 20% by mass in the total composition.

In the present invention, the mass ratio (A) / (B) of component (A) to component (B) is easy to spread on the skin, does not stop during application, suppresses dryness after application, and improves skin unevenness. From the viewpoint of excellent covering power, it is preferably 0.01 or more, more preferably 0.02 or more, further preferably 0.03 or more, preferably 3 or less, more preferably 1 or less, and 0.4 or less. More preferred. Further, the mass ratio (A)/(B) of component (A) to component (B) is preferably 0.01 to 3, more preferably 0.02 to 1, and 0.03 to 0.4. is more preferred.

Volatile in the volatile oils of component (C) are those having a flash point of 35-87°C.
The volatile oil may be any one as long as it is used in ordinary cosmetics, preferably one or more selected from volatile silicone oils and volatile hydrocarbon oils, more preferably volatile silicone oils. .

Volatile silicone oils include, for example, hexamethyldisiloxane (dimethylpolysiloxane (0.65cs)), octamethyltrisiloxane (dimethylpolysiloxane (1cs)), dimethylpolysiloxane (1.5cs), dimethylpolysiloxane ( 2cs); branched-chain siloxanes such as methyltrimethicone, tris(trimethylsilyl)methylsilane, tetrakis(trimethylsilyl)silane; octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, dodecamethylcyclohexasiloxane cyclic dimethylsiloxane such as
Among these, linear dimethylpolysiloxane and branched siloxane are preferred from the viewpoints of increasing the adhesion of the powder to the skin, suppressing the feeling of dryness after application, and providing excellent coverage of irregularities on the skin. Methyldisiloxane (dimethylpolysiloxane (0.65cs)), octamethyltrisiloxane (dimethylpolysiloxane (1cs)), dimethylpolysiloxane (1.5cs), dimethylpolysiloxane (2cs), methyl trimethicone It is more preferable to contain two or more types, at least hexamethyldisiloxane (dimethylpolysiloxane (0.65cs)), octamethyltrisiloxane (dimethylpolysiloxane (1cs)), dimethylpolysiloxane (1.5cs), dimethylpolysiloxane It is more preferable to contain one or more of (2cs).

Examples of volatile hydrocarbon oils include paraffinic hydrocarbon oils such as n-decane, n-undecane, and n-dodecane; isoparaffinic hydrocarbon oils such as isodecane, isododecane, and hydrogenated polyisobutene (trimer). ; cyclic paraffin hydrocarbon oils such as cyclodecane and cyclododecane; Among these, isoparaffinic hydrocarbon oils are preferred, and isoparaffins having 8 to 16 carbon atoms, from the viewpoint of increasing the adhesion of the powder to the skin, suppressing the feeling of dryness after application, and providing excellent coverage of irregularities on the skin. C10-C12 isoparaffinic hydrocarbon oils are more preferred, and it is even more preferred to contain at least isododecane.

The volatile oil of component (C) can be used alone or in combination of two or more. From the viewpoint of excellent unevenness covering power, it is preferably 1% by mass or more, more preferably 10% by mass or more, still more preferably 20% by mass or more, preferably 70% by mass or less, and 60% by mass or less in the total composition. is more preferable, and 50% by mass or less is even more preferable. The content of component (C) is preferably 1 to 70% by mass, more preferably 10 to 60% by mass, and even more preferably 20 to 50% by mass in the total composition.

In the present invention, the mass ratio of the total amount of components (A) and (B) to component (C) ((A) + (B)) / (C) is easy to spread on the skin and does not stop during application. , From the viewpoint of suppressing dryness after application and having excellent unevenness covering power of the skin, it is preferably 0.1 or more, more preferably 0.2 or more, further preferably 0.4 or more, and 6 or less. It is preferably 2 or less, more preferably 0.7 or less. Further, the mass ratio of the total amount of components (A) and (B) to component (C) ((A) + (B)) / (C) is preferably 0.1 to 6, and 0.2 ~2 is more preferred, and 0.4 to 0.7 is even more preferred.

The emulsified cosmetic of the present invention may further contain (D) a non-volatile oil.
Here, the term "non-volatile" means that 1 g of the oil solution is spread on a glass petri dish having a diameter of 48 mm, and the mass reduction rate is 1% or less after being left at 25° C. and normal pressure for 24 hours.
Component (D) non-volatile oil is preferably liquid at 25°C and is used in ordinary cosmetics, such as hydrocarbon oil, vegetable oil, animal oil, ester oil, higher alcohol oil, silicone oil, fluorine-based oil. An oil agent such as oil can be used.

Specifically, linear or branched hydrocarbon oils such as liquid paraffin, liquid isoparaffin, mineral oil, polybutene, polyisobutene, hydrogenated polyisobutene, hydrogenated polydecene, squalane, squalene, and petrolatum; avocado oil, macadamia nut oil, olive oil, Vegetable oils such as rapeseed oil, sesame oil, wheat germ oil, linseed oil, cottonseed oil, soybean oil, palm oil, coconut oil, castor oil, jojoba oil, sunflower oil, camellia oil, corn oil; animal oils such as liquid lanolin; isopropyl myristate , octyldodecyl myristate, isopropyl isostearate, isononyl isononanoate, butyl stearate, oleyl oleate, isotridecyl isononanoate, isostearyl myristate, octyldodecyl ricinoleate, octyl hydroxystearate, diglyceryl monoisostearate, ethylhexyl palmitate , cetyl ethylhexanoate, octyl methoxycinnamate, tocopheryl acetate, propylene carbonate, diisostearyl malate, propylene glycol dicaprylate, neopentyl glycol dicaprate, neopentyl glycol diethylhexanoate, diglyceryl diisostearate, propane diisostearate Diol, Glyceryl Monomyristate Monoisostearate, Glyceryl Diisostearate, Glyceryl Triisostearate, Caprylic/Caprylic Dipropanediol, Glyceryl Tri(Caprylic/Capric), Glyceryl Tri-2-Ethylhexanoate, Triethylhexa Noin, trimethylolpropane tri-2-ethylhexanoate, trimethylolpropane triisostearate, pentaerythrityl tetraoctanoate, pentaerythrityl tetraethylhexanoate, pentaerythritol tetraisostearate, polyglyceryl-2 isostearate, polyglyceryl diisostearate 2, polyglyceryl-2 triisostearate, polyglyceryl-2 tetraisostearate, polyglyceryl-6 octacaprylate, (isostearic acid/sebacic acid) ditrimethylolpropane oligoester, dipentaerythrityl tripolyhydroxystearate, di(phytosteryl/octyldodecyl lauroyl glutamate) ), di(phytosteryl/behenyl/octyldodecyl) lauroyl glutamate, trehalose esters isostearate, tetra Ester oils such as dipentaerythrityl sostearate, dipentaerythrityl pentaisostearate, ethylhexyl hydroxystearate, phytosterol fatty acid esters, cholesterol fatty acid esters, polyglycerin fatty acid esters, pentaerythritol fatty acid esters, dl-α-tocopherol, dl-α-tocopherol nicotinate, etc. higher alcohols such as isostearyl alcohol, octyldodecanol, decyltetradecanol; diphenyl dimethicone, dimethylpolysiloxane, methylcyclopolysiloxane, methylphenylpolysiloxane, methylhydrogenpolysiloxane, higher alcohol-modified organopolysiloxane, tris ( silicone oils such as trimethylsiloxy)methylsilane, trimethylpentaphenyltrisiloxane, and polysilicone-15; fluorine-based oils such as fluoropolyether and perfluoroalkylether silicone;

As the non-volatile oil of component (D), hydrocarbon oils, ester oils, and silicone oils are preferable from the viewpoints of easy spreading on the skin, no feeling of clogging during application, and suppression of dry feeling after application. Silicone oils are more preferred.

Component (D) can be used alone or in combination of two or more. It is preferably 1% by mass or more, more preferably 3% by mass or more, still more preferably 5% by mass or more, preferably 30% by mass or less, more preferably 25% by mass or less, and further preferably 20% by mass or less. . The content of component (D) is preferably 1 to 30% by mass, more preferably 3 to 25% by mass, even more preferably 5 to 20% by mass in the total composition.

The emulsified cosmetic composition of the present invention can further contain (E) a non-ionic surfactant, is easily spreadable on the skin, does not feel sticky during application, and can suppress dryness after application.
Examples of nonionic surfactants include those used in ordinary cosmetics, such as sorbitan fatty acid ester, glycerin fatty acid ester, polyglycerin fatty acid ester, propylene glycol fatty acid ester, polyethylene glycol fatty acid ester, sucrose fatty acid ester, polyoxy Ethylene fatty acid ester, polyoxyethylene sorbitan fatty acid ester, polyoxyethylene alkyl ether, polyoxyethylene sorbitol fatty acid ester, polyoxyethylene glycerin fatty acid ester, polyoxyethylene propylene glycol fatty acid ester, polyoxyethylene castor oil, polyoxyethylene hydrogenated castor Oil, polyoxyethylene hydrogenated castor oil fatty acid ester, polyoxyethylene phytostanol ether, polyoxyethylene phytosterose ether, polyoxyethylene cholestanol ether, polyoxyethylene cholesteryl ether, alkyl glyceryl ether-modified silicone, polyether-modified silicone, Examples include polyoxyalkylene/alkyl co-modified silicones, polyoxyalkylene/fluoroalkyl co-modified silicones, and the like.

Among these, silicone-based surfactants are preferred, and polyether-modified silicones are more preferred, from the viewpoints of easy spreadability on the skin, no feeling of stickiness during application, and suppression of dryness after application.
Examples of polyether-modified silicones include SH3771M, SH3772M, SH3773M, SH3775M, SH3749, DC5200 (manufactured by Dow Corning Toray Co., Ltd.), KF-6011, KF-6012, KF-6013, KF-6015, and KF-6016. , KF6017, and KF-6004 (manufactured by Shin-Etsu Chemical Co., Ltd.).

In the case of a water-in-oil emulsified cosmetic, the nonionic surfactant preferably has an HLB value of 1 or more and 7 or less, from the viewpoint of enhancing the dispersion and solubility of water and water-soluble ingredients in oil. More preferably, the HLB value is 2 or more and 6 or less.

Here, HLB (Hydrophilic-Lipophilic Balance) indicates the molecular weight of the hydrophilic group portion in the total molecular weight of the surfactant. Griffin) formula.
The HLB of a mixed surfactant composed of two or more nonionic surfactants is determined as follows. The HLB of the mixed surfactant is obtained by averaging the HLB values of each nonionic surfactant based on the blending ratio.

Mixed HLB=Σ(HLBx×Wx)/ΣWx
HLBx indicates the HLB value of nonionic surfactant X.
Wx is the weight (g) of the nonionic surfactant X having the value of HLBx

Component (E) can be used alone or in combination of two or more. It is preferably 0.1% by mass or more, more preferably 0.3% by mass or more, still more preferably 0.5% by mass or more, preferably 8% by mass or less, more preferably 4% by mass or less, and 2 % by mass or less is more preferable. The content of component (E) is preferably 0.1 to 8% by mass, more preferably 0.3 to 4% by mass, and even more preferably 0.5 to 2% by mass in the total composition.

The emulsified cosmetic composition of the present invention can further contain a silicone-based film-forming agent, so that it has excellent makeup durability and can suppress dry feeling after application.
As such a film-forming agent, any one that is used in ordinary cosmetics can be used, and one that is solid at 25°C is preferable.
Examples of silicone-based coating agents include trimethylsiloxysilicate, fluorine-modified silicone resins, acrylic silicone resins, and the like.

The trimethylsiloxysilicate is not limited as long as it is used in ordinary cosmetics, and is a compound having a crosslinked structure with a siloxane structure as a main skeleton, [(CH ₃ ) ₃ SiO _1/2 ] _m [SiO ₂ ] _n (m is 1 to 3, n is 0.5 to 8) is preferred.
Trimethylsiloxysilicate preferably has a mass average molecular weight of 1,000 to 10,000, more preferably 2,000 to 9,000, even more preferably 3,000 to 6,000. Moreover, the properties thereof may be liquid at 25° C., gum, paste, solid, or the like, but from the standpoint of longevity and finish, solid forms are preferred. From the viewpoint of blendability, it is also possible to use a solution or dispersion diluted with a solvent, or a solution or dispersion obtained by mixing in advance. The solvent to be diluted or dispersed is preferably one or more selected from dimethylpolysiloxane, octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, and isododecane. Volatile dimethylpolysiloxane and decamethylcyclopentasiloxane are preferred. more preferred. Volatile means having a flash point of 35 to 87°C.

Commercially available products of trimethylsiloxysilicate, which are dissolved in advance in a solvent, are KF-7312J (50% solid content decamethylcyclopentasiloxane solution), KF-9021 (50% decamethylcyclopentasiloxane solution), and X21. -5249 (50% decamethylcyclopentasiloxane solution) (manufactured by Shin-Etsu Chemical Co., Ltd.), SS4267 (35% dimethylpolysiloxane solution), SR1000 (manufactured by Momentive Performance Materials Japan G.K.), BY11 -018 (30% cyclopentasiloxane solution) (manufactured by Dow Corning Toray Silicone Co., Ltd.), BELSIL TMS 803 (manufactured by Wacker Chemie AG) and the like can be used.

Further, as the fluorine-modified silicone resin, general formula (1):
R1pSiO(4- _{p )/2} ( ¹ )
(In the formula, R ¹ is a hydrocarbon group having 1 to 8 carbon atoms, a phenyl group, a hydroxyl group, or the general formula —R ² —Rf (R ² is a divalent alkylene group having 2 to 6 carbon atoms, and Rf is a carbon is arbitrarily selected from hydroxyl groups and functional groups essentially having the general formula —R ² —Rf, and p is an average number of 1.0≦p≦1. 8)
Those having a structure represented by are preferred.
From the viewpoint of adhesion to the skin, the fluorine-modified silicone resin preferably has silanol groups in the molecule, and the ratio of OH groups in the silanol groups is 0.1 to 5% by mass relative to the resin mass. Preferably, 0.5 to 5% by mass is more preferable.

The fluorine-modified silicone resin is preferably solid at 25° C. From the viewpoint of compatibility, it should be a solution or dispersion diluted with a solvent, or a solution or dispersion obtained by mixing in advance. It is also possible to use As a solvent for dilution or dispersion, it is preferable to dissolve in cyclic silicone, dimethylpolysiloxane, or the like. The cyclic silicone is preferably used by dissolving in one or more selected from octamethylcyclotetrasiloxane (D4) and decamethylcyclopentasiloxane (D5).
Such fluorine-modified silicone resins include XS66-B8226, XS66-C1191, XS66-B8636 (Momentive Performance Materials Inc. Co., Ltd.) can be used.

Furthermore, acrylic silicone resins include vinyl polymers having carbosiloxane dendrimer structures in side chains, acrylic-silicone graft copolymers, and the like.
Examples of the vinyl polymer having a carbosiloxane dendrimer structure in the side chain include silicone dendrimer-acrylic copolymers, and the like. It can be manufactured according to the manufacturing method.
The vinyl polymer having a carbosiloxane dendrimer structure preferably has a number average molecular weight of 3,000 to 2,000,000, more preferably 5,000 to 800,000, from the viewpoint of long lasting makeup and finish.
In addition, from the viewpoint of makeup durability and finish, it is preferably in the form of a solid. Also, the vinyl polymer having a carbosiloxane dendrimer structure can be blended in a solid state, but it can also be used by dissolving it in a solvent. Examples of the solvent include silicone oil and hydrocarbon oil, and one or more selected from dimethylpolysiloxane, decamethylcyclopentasiloxane, and isododecane can be used.

As the vinyl-based polymer having a carbosiloxane dendrimer structure in a side chain, a silicone dendrimer-acrylic copolymer is preferable, and the cosmetic display name is "(Acrylates/Polytrimethylsiloxymethacrylate) copolymer" (INCI name: "Acrylates/Polytrimethylsiloxymethacrylate Copolymer"). ) is preferable, and FA4001CM (30% by mass decamethylcyclopentasiloxane solution), FA4002ID (40% by mass isododecane solution), FA4003DM (40% by mass dodecamethylpentasiloxane solution) dissolved in advance in a solvent (above, Dow Corning Toray Co., Ltd.) can be used.

The acryl-silicone graft copolymer is a radical polymer of an organopolysiloxane compound having a radically polymerizable group at one end of the molecular chain and a radically polymerizable monomer mainly composed of acrylate and/or methacrylate. This is, for example, the acrylic- Silicone-based graft copolymers can be used.

As the acrylic-silicone graft copolymer, the cosmetic label name "(Acrylates/Dimethicone) Copolymer" (INCI name "Acrylates/Dimethicone Copolymer") is preferable, and KP545 (30% by mass decamethylcyclopenta) dissolved in a solvent in advance is used. siloxane solution), KP549 (40% by mass methyl trimethicone solution), KP550 (40% by mass isododecane solution) (manufactured by Shin-Etsu Chemical Co., Ltd.).

As the silicone-based film agent, trimethylsiloxysilicate is preferable from the viewpoint of excellent makeup durability and suppression of dry feeling after application.

The silicone-based film agent can be used alone or in combination of two or more, and the content is 0.1% by mass or more in the total composition from the viewpoint of excellent makeup durability and suppression of dryness after application. is preferably 0.5% by mass or more, more preferably 1% by mass or more, preferably 10% by mass or less, more preferably 7% by mass or less, and even more preferably 5% by mass or less. Also, the content of the silicone film agent is preferably 0.1 to 10% by mass, more preferably 0.5 to 7% by mass, and even more preferably 1 to 5% by mass in the total composition.

In the present invention, the water content is preferably 5% by mass or more, more preferably 10% by mass or more, still more preferably 15% by mass or more, and 70% by mass or less, from the viewpoint of excellent stability and feeling during use. is preferred, 50% by mass or less is more preferred, and 40% by mass or less is even more preferred. Also, the content of water is preferably 5 to 70% by mass, more preferably 10 to 50% by mass, and even more preferably 15 to 40% by mass in the total composition.

The emulsified cosmetic composition of the present invention can contain various components used in ordinary cosmetics, in addition to the components described above, within a range that does not impair the effects of the present invention. These ingredients include, for example, oily ingredients other than the above, powders other than the above, surfactants other than the above, water-soluble polymers, antioxidants, vitamins, preservatives, pH adjusters, fragrances, and plant extracts. emollients, moisturizing agents, coloring agents, cooling agents, antiperspirants, bactericides, skin activators and the like.

The emulsified cosmetic of the present invention can be produced by a conventional method. Either a water-in-oil emulsified cosmetic, an oil-in-water emulsified cosmetic, or the like can be used, and a water-in-oil emulsified cosmetic is preferred.
Moreover, it can be in the form of liquid, milky lotion, paste, cream, gel, solid, and the like.
The emulsified cosmetic composition of the present invention can be used for cosmetics, quasi-drugs, and pharmaceutical applications. make-up cosmetics; can be applied as UV protection cosmetics such as sunscreen emulsions and sunscreen creams. It is suitable as a make-up cosmetic.

Examples 1-6, Comparative Examples 1-3
A water-in-oil type emulsified cosmetic (makeup base) having the composition shown in Table 1 was produced, and the ease of spreadability during application, lack of stickiness during application, lack of dryness after application, and unevenness covering power were evaluated. . The results are also shown in Table 1.

(Production method)
After adding and dispersing the powder component containing components (A) and (B) to the oil phase component containing component (C) at 25° C., adding the water phase component and stirring with a homomixer. A water-in-oil emulsified cosmetic was produced.

(Evaluation method)
(1) Ease of spreading on the skin:
When each base cosmetic was applied to the skin, easiness of spreadability on the skin during application was sensory evaluated by five expert panelists according to the following criteria. The result was shown by the total score of 5 persons.
5; Easy to spread evenly on the skin.
4; Easy to spread evenly on the skin.
3; Easy to spread evenly on the skin.
2; It does not spread evenly on the skin.
1; Does not spread evenly on the skin.

(2) Lack of stickiness during application:
When each base cosmetic was applied to the skin, 5 expert panelists sensory-evaluated the lack of stop feeling during application (slipping of fingers during application) according to the following criteria. The result was shown by the total score of 5 persons.
5; Very good finger slip during application.
4; Good finger slip during application.
3; Slightly good finger slip during application.
2; Fingers tend to stop during application, and the slippage is not very good.
1; The finger stops during application, and slippage is not good.

(3) No feeling of dryness after application:
Five expert panelists applied each base cosmetic to the skin, and sensory evaluated the dryness of the skin according to the following criteria. The result was shown by the total score of 5 persons.
5; dry feeling is inconspicuous.
4; Dry feeling is not very noticeable.
3; Dryness is slightly conspicuous.
2; Dry feeling is conspicuous.
1; A feeling of dryness is considerably conspicuous.

(4) Ability to cover irregularities:
Five expert panelists applied each base cosmetic to the skin, and sensory evaluated the ability to cover irregularities on the skin according to the following criteria. The result was shown by the total score of 5 persons.
5; Unevenness of the skin is inconspicuous.
4; Unevenness of the skin is not very conspicuous.
3; Unevenness of the skin is slightly conspicuous.
2; Unevenness of the skin is conspicuous.
1; Concavities and convexities of the skin are conspicuous.

Example 7
Water-in-oil emulsified cosmetics having compositions shown in Table 2 were produced in the same manner as in Examples 1 to 6.
The obtained water-in-oil type emulsified cosmetic composition spreads easily on the skin, does not give a feeling of clogging during application, does not give a feeling of dryness after application, and is excellent in unevenness covering power.

Claims (10)

The following components (A), (B) and (C):
(A) a composite powder containing spherical silica and titanium oxide and having a volume average particle size of 1 to 50 μm;
(B) titanium oxide or zinc oxide having an average particle size of 0.001 to 0.5 μm;
(C) Emulsified cosmetic containing volatile oil. The emulsified cosmetic composition according to claim 1, wherein the content of component (A) is 0.1 to 15% by mass. The emulsified cosmetic composition according to claim 1 or 2, wherein the content of component (B) is 1 to 40% by mass. The emulsified cosmetic composition according to any one of claims 1 to 3, wherein the content of component (C) is 1 to 70% by mass. The emulsified cosmetic according to any one of claims 1 to 4, wherein component (A) is a spherical composite powder of spherical silica encapsulating titanium oxide. The emulsified cosmetic composition according to any one of claims 1 to 5, wherein component (B) contains titanium oxide or zinc oxide having an average particle size of 0.005 to 0.1 µm. The emulsified cosmetic composition according to any one of claims 1 to 6, wherein the mass ratio (A)/(B) of component (A) to component (B) is 0.01-3. Any one of claims 1 to 7, wherein the mass ratio ((A)+(B))/(C) of the total amount of components (A) and (B) to component (C) is 0.1 to 6. 1. Emulsified cosmetics according to item 1. The emulsified cosmetic composition according to any one of claims 1 to 8, further comprising (D) a non-volatile oil. The emulsified cosmetic composition according to any one of claims 1 to 9, further comprising (E) a nonionic surfactant.