JP2020164458A - Oil-in-water emulsion cosmetic - Google Patents

Abstract

To provide an oil-in-water emulsion cosmetic which does not become powdery, can obtain smooth finish and has sufficient covering power for color unevenness even in the case of the skin having roughness.SOLUTION: There is provided an oil-in-water emulsion cosmetic which comprises the following components (A), (B), (C) and (D): (A) 0.05 to 20 mass% of trimethylsiloxy silicic acid, (B) 0.1 to 5 mass% of a polyacrylamide compound, (C) 0.05 to 30 mass% of a coloring pigment subjected to hydrophobic treatment and (D) 0.05 to 30 mass% of a spherical powder having a volume average particle diameter of 1 to 30 μm.SELECTED DRAWING: None

Description

The present invention relates to an oil-in-water emulsified cosmetic.

Conventionally, oil-in-water emulsified cosmetics using an acrylamide polymer have been studied in order to obtain a refreshing, fresh and excellent usability.
For example, in Patent Document 1, an oil-in-water cosmetic containing a (Na acrylate / Na acryloyl dimethyl taurine) copolymer, gellan gum, an electrolyte, and an oil agent has excellent stability, and is suitable for the skin and has a smooth stretch. It is also stated that it is excellent. Further, in Patent Document 2, an oil-in-water emulsified solid cosmetic containing agar, an acrylic acid amide-based water-soluble thickener, and an oil agent is easy to use with a fresh and refreshing feeling, and has high adhesion to the skin and is smooth. It is described that it has a good usability.

Japanese Unexamined Patent Publication No. 2016-190835 Japanese Unexamined Patent Publication No. 2014-118386

However, when there is rough skin such as scales due to drying, applying the oil-in-water emulsified cosmetic has a problem that the finish becomes powdery and a smooth finish cannot be obtained. In particular, on skin with scales, when the oil-in-water emulsified cosmetic is applied, the oil-in-water emulsified cosmetic accumulates in the scales, the scales look powdery, and the scales are oil-in-water emulsified. It was difficult to see a smooth finish because the cosmetics lifted it up from the skin and made it stand out. Furthermore, the covering power against color unevenness was not sufficient.

The present inventor uses a combination of a polyacrylamide compound, trimethylsiloxysilicic acid, a hydrophobized coloring pigment, and a spherical powder having a specific particle size, so that the finish can be powdered even on rough skin. We have found that an oil-in-water emulsified cosmetic that does not look like it, has a smooth finish, and has sufficient coverage against color unevenness can be obtained.

In the present invention, the following components (A), (B), (C) and (D):
(A) Trimethylsiloxysilicic acid 0.05 to 20% by mass,
(B) Polyacrylamide compound 0.1 to 5% by mass,
(C) Hydrophobicized coloring pigment 0.05 to 30% by mass,
(D) Spherical powder having a volume average particle diameter of 1 to 30 μm 0.05 to 30% by mass
Concerning oil-in-water emulsified cosmetics containing.

The oil-in-water emulsified cosmetic of the present invention does not become powdery because the oil-in-water emulsified cosmetic does not easily accumulate in the scales even when there is rough skin such as scales due to drying, and the oil-in-water emulsified cosmetic is also in the oil type. By suppressing the appearance of the emulsified cosmetics floating from the skin, a smooth finish can be obtained and the covering power against color unevenness is also improved.

The trimethylsiloxysilicic acid of the component (A) used in the present invention is a compound having a crosslinked structure having a siloxane structure as a main skeleton, and is represented by [(CH ₃ ) ₃ SiO _1/2 ] _S [SiO ₂ ] _T. Those (S is 1 to 3 and T is 0.5 to 8) are preferable.
Further, the trimethylsiloxysilicic acid preferably has a weight average molecular weight of 1000 to 10000, more preferably 2000 to 9000, and further preferably 3000 to 6000 from the viewpoint of improving the covering power against color unevenness.

The properties may be liquid, gum, paste, solid or the like at 25 ° C., but solid ones are preferable from the viewpoint of improving the covering power against color unevenness.
Further, as the component (A), it can be used in a solid state or in a state of being dissolved in a solvent. When used in a state of being dissolved in a solvent, examples of the solvent include silicone oil and hydrocarbon oil, and from the viewpoint of improving the covering power against color unevenness, methyltrimethicone, dimethylpolysiloxane (2cs), dimethylpolysiloxane ( 6cs), octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, one or more selected from isododecane, preferably one or more selected from methyltrimethicone, dimethylpolysiloxane (2cs), decamethylcyclopentasiloxane, or Two or more are more preferable, one or more selected from dimethylpolysiloxane (2cs) and decamethylcyclopentasiloxane are further preferable, and decamethylcyclopentasiloxane is even more preferable.

As the trimethylsiloxysilicic acid, the cosmetic labeling name "trimethylsiloxysilicic acid" (INCI name "Trimethylsiloxysilicate") is preferable, and as the solid form, a commercially available product such as SR1000 (manufactured by Momentive) can be used. .. KF-7312T (60% by mass methyltrimethicone solution), KF-7312L (50% dimethylpolysiloxane (2cs) solution), KF-7312J (50% by mass decamethylcyclo) were previously dissolved in a solvent. Pentasiloxane solution), KF-7312K (50 mass% dimethylpolysiloxane (6cs) solution) (all manufactured by Shin-Etsu Chemical Industry Co., Ltd.) and the like can be used.

As the component (A), one type or two or more types can be used, and the content is 0 in the entire composition from the viewpoint of reducing powderiness, smooth finish, and improving covering power against color unevenness. It is .05 to 20% by mass, preferably 0.1 to 15% by mass, more preferably 0.5 to 8% by mass, still more preferably 1 to 6% by mass.

The polyacrylamide compound of component (B) is one or more polymers selected from the group of homopolymers and copolymers of acrylamide and its derivatives. Polyacrylamide compounds include polyacrylamide and acrylamide copolymers. Examples of the acrylamide copolymer include copolymers containing acrylamide and / or acryloyldimethyltaurine as a constituent unit.
As the polyacrylamide compound of the component (B), those used in ordinary cosmetics, for example,
Polyacrylamide,
Copolymer of acrylamide and acrylic acid (salt),
Copolymer of acrylic acid (salt) and acryloyl dimethyl taurine (salt),
Copolymer of hydroxyalkyl acrylate and acryloyl dimethyl taurine (salt),
A copolymer of acrylic acid (salt), acrylic acid amide, acrylic acid (salt), and acryloyldimethyltaurine (salt),
Examples thereof include a copolymer of 2-acrylamide-2-methylpropanesulfonic acid (salt), N, N-dimethylacrylamide, lauryl methacrylate, and lauroxypolyethylene glycol monomethacrylate (4EO).

The polyacrylamide compound of the component (B) includes polyacrylamide, acrylic acid (salt) and acryloyldimethyltaurine (salt) from the viewpoint of reducing powderiness, smooth finish, and improving coverage against color unevenness. , A copolymer of hydroxyalkyl acrylate and acryloyldimethyltaurine (salt), a copolymer of acrylic acid (salt) and acryloyldimethyltaurine (salt), hydroxyalkyl acrylate and acryloyldimethyltaurine (salt) A copolymer with (salt) is more preferable, and a copolymer of acrylic acid (salt) and acryloyldimethyltaurine (salt) is even more preferable.

From the viewpoint of improving the smooth finish, the oil-in-water emulsified cosmetic of the present invention contains 60% by mass of a copolymer of acrylic acid (salt) and acryloyldimethyltaurine (salt) in the component (B). % Or more is preferable, 70% by mass or more is more preferable, 90% by mass or more is further preferable, and 100% by mass or more is further preferable.

Among the polyacrylamide compounds of the component (B), specific examples of the polyacrylamide include SEPIGEL 305 (manufactured by SEPPIC).
Examples of the copolymer of acrylamide and acrylic acid (salt) include acrylamide / ammonium acrylate) copolymers, and specific examples thereof include SEPIPLUS 265 (manufactured by SEPPIC).

Examples of the copolymer of acrylic acid (salt) and acryloyldimethyltaurine (salt) include (Na acrylate / Na acryloyldimethyltaurine) copolymer, and specific examples thereof include SIMULGEL EG (manufactured by SEPPIC). Re;
Examples of the copolymer of hydroxyalkyl acrylate and acryloyldimethyltaurine (salt) include (hydroxyethyl acrylate / acryloyldimethyltaurine Na) copolymers, and specifically, SIMULGEL FL, SIMULGEL NS, SEPIPLUS S, and Sepinov. EMT 10 (above, manufactured by SEPPIC), etc.;
Examples of the copolymer of acrylic acid (salt), acrylic acid amide, acrylic acid (salt), and acryloyldimethyltaurine (salt) include polyacrylate-13, and specifically, SEPIPLUS 400 (SEPPIC). (Manufactured by the company), etc.;
Examples of the copolymer of 2-acrylamide-2-methylpropanesulfonic acid (salt), N, N-dimethylacrylamide, lauryl methacrylate, and lauroxypolyethylene glycol monomethacrylate (4EO) include polyacrylate crosspolymer 6. Specific examples thereof include SEPIMAX ZEN (manufactured by SEPPIC).

As the component (B), one type or two or more types can be used, and the content is 0 in the entire composition from the viewpoint of reducing powderiness, smooth finish, and improving covering power against color unevenness. .1 to 5% by mass, preferably 0.15 to 3% by mass, and more preferably 0.4 to 1.5% by mass.

In the present invention, the mass ratio (A) / (B) of the component (A) to the component (B) is set to 0 from the viewpoint of reducing powderiness, smooth finish, and improving covering power against color unevenness. 1 to 30 is preferable, 0.7 to 18 is more preferable, and 2 to 10 is further preferable.

The component (C) used in the present invention is a color pigment that has been hydrophobized.
Color pigments are those used in ordinary cosmetics, for example, metal oxidation of titanium oxide, cerium oxide, aluminum oxide, yellow iron oxide, black iron oxide, red iron oxide, dark blue, ultramarine blue, chromium oxide, chromium hydroxide, etc. Examples include substances, metal complexes such as manganese violet and cobalt titanate, and inorganic pigments such as carbon black; organic pigments such as tar pigments and lake pigments, and natural pigments such as carmine.
The coloring pigment preferably contains at least one or more selected from titanium oxide, yellow iron oxide, black iron oxide, and red iron oxide from the viewpoint of finishing the skin with a clean make-up effect, and titanium oxide and yellow iron oxide. , Black iron oxide, at least one selected from red iron oxide, or more preferably two or more.

Examples of the hydrophobizing treatment of these coloring pigments include silicone treatment, fluorine treatment, fatty acid treatment, N-acylamino acid treatment and the like. Examples of the silicone treatment include methylhydrogen polysiloxane treatment, dimethylpolysiloxane treatment, alkylalkoxysilane treatment, and the like, and examples of the fluorine treatment include perfluoroalkyl phosphate treatment, perfluoroalkylalkoxysilane treatment, and the like. Examples of the fatty acid treatment include stearic acid treatment and myristic acid treatment, and examples of the N-acylamino acid treatment include lauroyl lysine treatment, dilauroyl glutamate lysine Na treatment, stearoyl glutamate 2Na treatment, lauroyl aspartate Na treatment and the like. ..
As the hydrophobic treatment, from the viewpoint of improving the covering power against color unevenness, silicone treatment and N-acylamino acid treatment are preferable, silicone treatment is more preferable, and methylhydrogenpolysiloxane treatment, dimethylpolysiloxane treatment, and alkylalkoxysilane treatment are preferable. Is even more preferable, methylhydrogenpolysiloxane treatment and alkylalkoxysilane treatment are even more preferable, and methylhydrogenpolysiloxane treatment is even more preferable. When a hydrophobized coloring pigment is used, the content of the component (C) means the mass including the hydrophobized agent.

As the component (C), one type or two or more types can be used, and the content is 0 in the entire composition from the viewpoint of reducing powderiness, smooth finish, and improving the covering power against color unevenness. It is .05 to 30% by mass, preferably 0.1 to 20% by mass, more preferably 0.5 to 15% by mass, still more preferably 1 to 8% by mass.

In the present invention, the mass ratio (B) / (C) of the component (B) to the component (C) is set to 0 from the viewpoint of reducing powderiness, smooth finish, and improving covering power against color unevenness. 01 to 10 is preferable, 0.03 to 4 is more preferable, and 0.15 to 0.6 is further preferable.

The component (D) is a spherical powder having a volume average particle diameter of 1 to 30 μm. The component (D) does not contain the component (C).
The spherical powder of the component (D) has a volume average particle diameter of 1 to 30 μm, and is preferably a volume average particle diameter of 1.5 to 20 μm, more preferably 2 to 10 μm, from the viewpoint of improving a smooth finish. The shape may be a spherical powder having a true sphere, a substantially spherical shape, a spheroid, and an uneven surface.
In the present invention, the volume average particle size is measured by a laser diffraction scattering particle size distribution measuring device (manufactured by Seishin Enterprise Co., Ltd., LMS-350). Further, in the present invention, the volume average particle diameter is a volume-based average particle diameter, and is set to 50% median diameter.

The spherical powder of the component (D) is not limited as long as it is used in ordinary cosmetics, and these spherical powders are coated with a coloring pigment, a dye, a dye, a metal ion, or the like by an ordinary method. , May be encapsulated and colored.
Examples of such spherical powder include inorganic spherical powders such as spherical silica, spherical alumina, and spherical titania; spherical silicone resins such as polymethylsilsesquioxane, spherical polyamide resins, spherical polymethylmethacrylate resins, and spherical polyurethane resins. , Spherical polyethylene resin, spheroidal polystyrene resin, spheroidal cellulose resin, spheroidal polylactic acid resin and other organic spheroidal powders;
Of these spherical powders, spherical silica, spherical silicone resin, spherical polyamide resin, spherical polymethylmethacrylate resin, and spherical shape from the viewpoint of reducing powderiness, smooth finish, and improving coverage against color unevenness. Cellulous resin and spherical polylactic acid resin are preferable, spherical silica, spherical silicone resin, spherical cellulose resin and spherical polylactic acid resin are more preferable, spherical silicone resin is further preferable, and polymethylsilsesquioxane is even more preferable.

As the component (D), one type or two or more types can be used, and the content is 0 in the entire composition from the viewpoint of reducing powderiness, smooth finish, and improving the covering power against color unevenness. It is .05 to 30% by mass, preferably 0.08 to 15% by mass, and more preferably 0.4 to 8% by mass.

In the present invention, the mass ratio (B) / (D) of the component (B) to the component (D) is set to 0 from the viewpoint of reducing powderiness, smoothing the finish, and improving the covering power against color unevenness. 03 to 20 is preferable, 0.04 to 10 is more preferable, 0.06 to 5 is further preferable, and 0.5 to 1.5 is even more preferable.

In the present invention, the mass ratio (C) / (D) of the component (C) to the component (D) is 0. From the viewpoint of reducing the powderiness, smoothing the finish, and improving the covering power against color unevenness. 1 to 50 is preferable, 0.5 to 40 is more preferable, 0.18 to 20 is further preferable, and 1.2 to 10 is even more preferable.

The oil-in-water emulsified cosmetic of the present invention further comprises (E) a plate-like powder having a volume average particle diameter of 1 to 100 μm and an aspect ratio of 8 to 120 from the viewpoint of improving a smooth finish and covering power against color unevenness. It is preferable to contain it. The component (E) does not contain the component (C).
Here, the plate-like shape includes not only a plate-like shape in a narrow sense but also a powder having a flaky shape, a scale-like shape, and the like.
The plate-like powder of the component (E) preferably has a volume average particle diameter of 8 to 60 μm, more preferably 10 to 30 μm, and an aspect ratio of 10 to 10 from the viewpoint of improving the smooth finish and covering power against color unevenness. 80 is preferable, and 15 to 70 is more preferable.
The volume average particle size is measured by the same method as that of the component (D).
The aspect ratio is calculated by the ratio of the volume average particle diameter to the average particle thickness, and is defined by the aspect ratio = (volume average particle diameter / average thickness).
The average thickness of the particles is obtained by averaging the thicknesses of 10 to 50 mother particles measured by observing with a scanning electron microscope or a transmission electron microscope.

Examples of the plate-like powder of the component (E) include plate-shaped cerium oxide, plate-shaped barium sulfate, talc, mica, plate-shaped kaolin, sericite, white mica, plate-shaped synthetic mica, phlogopite, red mica, and black. Mica, lepidolite, plate-shaped silicic acid anhydride, plate-shaped hydroxyapatite, bentonite, montmorillonite, hectrite, plate-shaped ceramic powder, plate-shaped alumina, plate-shaped boron nitride, plate-shaped iron oxide, titanium oxide-coated mica, titanium oxide treatment Examples thereof include mica, bismuth oxychloride, bismuth oxychloride coated with titanium oxide, talc coated with titanium oxide, fish scale foil, colored mica coated with titanium oxide, aluminum, and plate-shaped glass powder.

One type of plate-like powder of component (E) selected from talc, mica, plate-like synthetic mica, plate-like boron nitride, and plate-like glass powder from the viewpoint of improving the smooth finish and covering power against color unevenness. Alternatively, two or more are preferable, one or two or more selected from plate-shaped synthetic mica and plate-shaped glass powder are more preferable, and one or two or more selected from synthetic phlogopite and plate-shaped glass powder are more preferable. ..
As the component (E), as the talc, for example, a commercially available product such as talc JA-46R (volume average particle 9 μm, aspect ratio 50) (manufactured by Asada Flour Milling Co., Ltd.) can be used, and as the synthetic gold mica, for example, PDM-1000 (volume average particle diameter 12 μm, aspect ratio 20), PDM-40L (volume average particle diameter 40 μm, aspect ratio 80), PDM-10L (volume average particle diameter 12 μm, aspect ratio 60) (above, Topy Industry Co., Ltd.) (Manufactured by) and other commercially available products can be used, and as the plate-shaped glass powder, silky flakes FTD010FY-F01 (volume average particle diameter 10 μm, aspect ratio 25), silky flakes FTD025FY-F02 (volume average particle diameter 25 μm, aspect ratio). A commercially available product such as 62.5) (all manufactured by Nippon Plate Glass Co., Ltd.) can be used.

Further, the plate-like powder of the component (E) can be used as it is, or if necessary, a hydrophobized powder can be used as in the component (C).
When the component (E) is hydrophobized, the content, volume average particle diameter, and particle thickness of the component (E) are the content including the hydrophobized agent, the volume average particle diameter, and the particles. Means the thickness of.

As the component (E), one type or two or more types can be used, and the content is 0.01 to 30% by mass in the total composition from the viewpoint of improving the smooth finish and the covering power against color unevenness. Is preferable, 0.02 to 20% by mass is more preferable, and 0.3 to 10% by mass is further preferable.

The oil-in-water emulsified cosmetic of the present invention preferably further contains (F) a nonionic surfactant from the viewpoint of obtaining a stable oil-in-water emulsified cosmetic.
The nonionic surfactant is not limited as long as it is used in ordinary cosmetics. For example, polyoxyethylene fatty acid ester, polyoxyethylene sorbitan fatty acid ester, polyoxyethylene alkyl ether, polyoxyethylene sorbitol fatty acid. Estel, polyoxyethylene glycerin fatty acid ester, polyoxyethylene propylene glycol fatty acid ester, polyoxyethylene castor oil, polyoxyethylene cured castor oil, polyoxyethylene cured castor oil fatty acid ester, polyoxyethylene phytostanol ether, polyoxyethylene phyto Sterose ether, polyoxyethylene cholestanol ether, polyoxyethylene cholesteryl ether, polyoxyalkylene-modified organopolysiloxane, polyoxyalkylene-alkyl co-modified organopolysiloxane, sorbitan fatty acid ester, sucrose fatty acid ester, alkyl glyceride, α- Examples thereof include monoalkyl glyceryl ether.
Among these, one or more selected from polyoxyethylene sorbitan fatty acid ester, polyoxyethylene alkyl ether, polyoxyethylene hydrogenated castor oil, and sorbitan fatty acid ester from the viewpoint of obtaining a stable oil-in-water emulsified cosmetic. Preferably, one or more selected from polyoxyethylene sorbitan fatty acid ester and sorbitan fatty acid ester is more preferable.

The nonionic surfactant is preferably HLB 6 or more and 20 or less, more preferably HLB 7 to 15, further preferably HLB 8 to 12, and even more HLB 9 to 11 from the viewpoint of obtaining a stable oil-in-water emulsified cosmetic. preferable.
Here, HLB (hydrophilic-lipophilic balance <Hydrophilic-Lipophilic Balance>) indicates the molecular weight of the hydrophilic group portion in the total molecular weight of the surfactant, and for nonionic surfactants, Griffin ( It is obtained by the formula of Griffin).
The HLB of a mixed surfactant composed of two or more types of nonionic surfactants is a phase-added average of the HLB values of each nonionic surfactant based on the blending ratio. Therefore, even if the HLB value of each nonionic surfactant is less than 6, if the mixed HLB is within the above range, the nonionic surfactant in the present invention has an HLB of 6 or more and 20 or less. ..

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

The component (F) can be used alone or in combination of two or more, and the content is preferably 0.01 to 10% by mass in the total composition from the viewpoint of obtaining a stable oil-in-water emulsified cosmetic. Preferably, 0.1 to 5% by mass is more preferable, 0.5 to 3% by mass is further preferable, and 1 to 2% by mass is further preferable.

The oil-in-water emulsified cosmetic of the present invention preferably contains (G) a liquid volatile oil at 25 ° C. from the viewpoint of improving the smooth finish and the covering power against color unevenness.
Liquid at 25 ° C means having fluidity at 25 ° C. Further, the volatility is one having a flash point of 35 to 100 ° C.
The volatile oil may be any oil used in ordinary cosmetics, and examples thereof include silicone oil, hydrocarbon oil, and ether oil.

Examples of the silicone oil include chain dimethylpolysiloxane and cyclic dimethylpolysiloxane. The chain-like dimethylpolysiloxane may be either a straight chain or a branched chain, and examples of the linear dimethylpolysiloxane include dimethylpolysiloxane (1.5 cs) and dimethylpolysiloxane (2 cs). Examples thereof include methyltrimethicone, tris (trimethylsilyl) methylsilane, and tetrakis (trimethylsilyl) silane. Examples of the cyclic dimethylpolysiloxane include octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, and dodecamethylcyclohexasiloxane.
Examples of the hydrocarbon oil include isododecane, isotoridecan, isohexadecane, light isoparaffin, and light liquid isoparaffin, and examples of the ether oil include ethyl perfluorobutyl ether.

Of these, one or more selected from silicone oil and hydrocarbon oil are preferable from the viewpoint of improving the smooth finish and covering power against color unevenness, and dimethylpolysiloxane (2cs), decamethylcyclopentasiloxane, and the like. One or more selected from isohexadecane is more preferable.

As the component (G), one type or two or more types can be used, and the content is 0.1 to 40% by mass in the total composition from the viewpoint of improving the smooth finish and the covering power against color unevenness. Is more preferable, 1 to 35% by mass is more preferable, 2 to 30% by mass is further preferable, 3 to 25% by mass is further preferable, and 4 to 20% by mass is further preferable.

In the present invention, the content of water is preferably 10 to 90% by mass, more preferably 25 to 85% by mass, further preferably 40 to 80% by mass, still more preferably 45 to 78% by mass in the total composition. More preferred.

In the oil-in-water emulsified cosmetic of the present invention, in addition to the above-mentioned components, components usually used in cosmetics, for example, a water-soluble polymer other than the component (B), an oil agent other than the component (G), the component (C), Powders other than (D) and (E), antioxidants, fragrances, pigments, preservatives, thickeners, pH regulators, blood circulation promoters, cold sensitizers, antiperspirants, fungicides, skin activators, It can contain a moisturizer, a refreshing agent, and the like.

The oil-in-water emulsified cosmetic of the present invention can be produced by a usual method. Specifically, the oil-in-water emulsified cosmetic of the present invention can be obtained by the following procedure. That is, the powder phase is mixed and pulverized, added to the mixed oil phase at a temperature of about 60 ° C., dispersed, and cooled to about 25 ° C. Then, the oil phase containing the powder phase described above is added to the mixed aqueous phase and mixed to obtain an oil-in-water emulsified cosmetic.

The oil-in-water emulsified cosmetic of the present invention can be in a liquid, emulsion, paste-like, cream-like, gel-like or other dosage form.
The underwater oil-type emulsified cosmetic of the present invention is a make-up cosmetic such as makeup base, liquid foundation, cream foundation, concealer, blusher, eye shadow, mascara, eyeliner, eyebrow, overcoat agent, and lipstick; UV protection cosmetics such as anti-milky lotion and sunscreen cream; can be applied as skin care cosmetics such as skin care milky lotion, skin care cream, BB cream and beauty liquid.
Of these, make-up cosmetics are preferable, and makeup bases, liquid foundations, and cream foundations are more preferable.
The oil-in-water emulsified cosmetic obtained by the present invention can be used alone or in layers of powder cosmetics such as liquid foundation, powder foundation and white powder.

Examples 1-8, Comparative Examples 1-4
An oil-in-water emulsified cosmetic (liquid foundation) having the composition shown in Table 1 was produced, and on skin with scales, a non-powdered finish, a covering power against color unevenness, and a smooth finish were evaluated. The results are also shown in Table 1.

(Production method)
The powder phase component was mixed and pulverized, added to the oil phase component separately mixed at 60 ° C., dispersed with a disper, and cooled to 25 ° C. Then, the aqueous phase component was stirred with a homomixer, an oil phase component containing a powder phase prepared separately was added, and the mixture was stirred with a homomixer to obtain an oil-in-water emulsified cosmetic.

(Evaluation method)
(1) Non-powdered finish:
One female panelist who had scales on her skin and had rough skin applied 0.01 g / 30 cm ^{2 of} each oil-in-water emulsified cosmetic to her skin using a sponge. Five expert evaluators visually evaluated the non-powdered finish of the skin after application by the female panelists on the following five stages, and the results were shown by the total score of the five.
5; No powderiness at all.
4; There is almost no powderiness.
3; Not very powdery.
2; There is powderiness.
1; It is quite powdery.

(2) Covering power against color unevenness:
One female panelist who had scales on her skin and had rough skin applied 0.01 g / 30 cm ^{2 of} each oil-in-water emulsified cosmetic to her skin using a sponge. Five expert evaluators visually evaluated the covering power against skin color unevenness after application by female panelists on the following five stages, and the results were shown by the total score of the five people.
5; Color unevenness is not noticeable at all.
4; Color unevenness is hardly noticeable.
3; Color unevenness is not so noticeable.
2; Color unevenness is a little noticeable.
1; Color unevenness is very noticeable.

(3) Smooth finish on scaled skin:
One female panelist who had scales on her skin and had rough skin applied 0.01 g / 30 cm ^{2 of} each oil-in-water emulsified cosmetic to her skin using a sponge. Five expert evaluators visually evaluated the smooth finish of the skin after application of the female panelist (the application state of the foundation) in the following five stages, and the results were shown by the total score of the five persons. The smooth finish means that even if the oil-in-water emulsified cosmetic is applied, the scales are not conspicuous and the skin looks smooth.
5; The skin after application is very smooth.
4; The skin after application is smooth.
3; The skin after application is slightly smooth.
2; The skin after application is not very smooth.
1; The skin after application is clearly not smooth.

Prescription example 1
An oil-in-water emulsified cosmetic (liquid foundation) having the composition shown in Table 2 was produced in the same manner as in Examples. The obtained oil-in-water emulsified cosmetic has a smooth finish without becoming powdery even on skin with scales, and has excellent covering power against color unevenness.

Claims (5)

The following components (A), (B), (C) and (D):
(A) Trimethylsiloxysilicic acid 0.05 to 20% by mass,
(B) Polyacrylamide compound 0.1 to 5% by mass,
(C) Hydrophobicized coloring pigment 0.05 to 30% by mass,
(D) Spherical powder having a volume average particle diameter of 1 to 30 μm 0.05 to 30% by mass
An oil-in-water emulsified cosmetic containing. The oil-in-water emulsified cosmetic according to claim 1, wherein the mass ratio (B) / (C) of the component (B) to the component (C) is 0.01 to 10. The oil-in-water emulsified cosmetic according to claim 1 or 2, wherein the hydrophobizing treatment of the component (C) is a silicone treatment. The oil-in-water emulsified cosmetic according to any one of claims 1 to 3, wherein the component (B) contains a copolymer of an acrylate and an acryloyl dimethyl taurine salt. The oil-in-water emulsified cosmetic according to any one of claims 1 to 4, wherein the mass ratio (C) / (D) of the component (C) to the component (D) is 0.1 to 50.