JP5502338B2 - Water-in-oil emulsified cosmetic - Google Patents

Description

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

  In general, “good makeup” means that powders such as pigments and coating agents such as polymers contained in finished cosmetics such as foundations adhere evenly and uniformly to the skin surface, resulting in a beautiful finish. say. However, during application, if the surface of the skin is uneven due to poor spreading of the finished cosmetic on the skin or rough skin, the powder in the cosmetic will aggregate on the skin or cause unevenness. The original finish of cosmetics cannot be obtained.

Therefore, in general, in order to finish the finish cosmetics such as foundations and funniers more beautifully, in general, skin care cosmetics such as skin lotions, emulsions and creams, and UV-preventive cosmetics that have a makeup base effect, Using base cosmetics (makeup bases) dedicated to finishing cosmetics, the skin condition is adjusted before applying the finishing cosmetics.
However, general skin care cosmetics such as milky lotions and creams, and UV protection cosmetics are not designed to take into account the finish of makeup, and skin color correction and foundations are not available for makeup foundations dedicated to foundations. However, when the skin condition deteriorates, the makeup becomes worse and the effect is still insufficient.

As a conventional technique for improving cosmetic paste, it contains a cosmetic (see Patent Documents 1 to 4) in which components such as highly polymerized silicone and water-soluble polymer are added to the cosmetic, and a partially crosslinked organopolysiloxane polymer. Cosmetics (see Patent Documents 5 to 7) and the like have been studied.
However, in such cosmetics, the adhesiveness of the contained powder to the skin is low, so that it is not fully satisfactory in makeup paste and makeup finish. In addition, there is a problem that the skin becomes thick and powdery even over time.

Japanese Patent Laid-Open No. 11-130654 JP 2001-172123 A JP 2004-339130 A JP 2004-346046 A JP-A-1-190757 JP-A-1-250306 JP-A-3-115207

  The present invention has an excellent feeling of use that is smooth and smooth and does not become sticky or powdery over time, and after application, forms a cosmetic film with a good cosmetic paste and repeats the finished cosmetic. It is an object to provide cosmetics that have a natural and beautiful makeup finish.

  The present inventors obtained a cross-linked methylpolysiloxane (dimethicone / vinyl dimethicone) crosspolymer, a specific molecular weight polyethylene glycol, a specific hydrophobic plate powder, a hydrophobic organic spherical powder and a low viscosity silicone oil. The water-in-oil emulsified cosmetics combined at a specific ratio have an excellent feeling of use, do not give a feeling of being bulky or powdery, and do not agglomerate the powder on the skin. It has been found that since the applied state can be maintained and a cosmetic film having a good makeup paste can be formed, a beautiful cosmetic finish with a good makeup paste can be provided by subsequently applying the finish cosmetic.

The present invention includes the following components (A) to (F):
(A) Cross-linked methylpolysiloxane (dimethicone / vinyl dimethicone) crosspolymer 0.005 to 10% by mass,
(B) 0.1 to 10% by mass of polyethylene glycol having a number average molecular weight of 1000 to 3000,
(C) 0.1-20% by mass of a plate-like powder obtained by hydrophobizing the surface of a plate-like powder selected from talc, silica, sericite, mica and glass,
(D) hydrophobic organic spherical powder 0.1-20% by mass,
(E) 5-80% by mass of a silicone oil having a kinematic viscosity at 25 ° C. of 100 mm ² / s or less,
(F) A water-in-oil emulsified cosmetic containing water is provided.

  The water-in-oil emulsified cosmetic of the present invention has an excellent feeling of use that is smooth and non-sticky, and does not become a sticky or powdery feel over time, and further contains other powders. However, the powder is not agglomerated on the skin even with lapse of time and can be kept uniformly applied. For example, when the ultraviolet protective powder is blended in the cosmetic of the present invention, a high ultraviolet protective effect and excellent effect sustainability can be obtained. Furthermore, if the cosmetic of the present invention is applied to the skin in advance before applying the finished cosmetic, the cosmetic of the finished cosmetic is good and a natural and beautiful cosmetic finish can be obtained. Finishing cosmetics here means adjusting the skin tone, such as liquid foundation, powder foundation, cream foundation, and funny (face powder), to finish uneven color and unevenness inconspicuously, and to make the skin look beautiful and beautiful It is a makeup cosmetic that can be used.

[Component (A)]
(Dimethicone / vinyl dimethicone) crosspolymer (INCI name), which is a crosslinked methylpolysiloxane of component (A), is a known compound and can be produced according to a conventional method. For example, it can be produced by subjecting dimethoxydimethylsiloxane and vinyldimethylmethoxysiloxane to dealcohol condensation, followed by addition polymerization using a polymerization initiator such as azobisisobutyronitrile.
The component (A) is generally mixed with a low-viscosity silicone oil and swollen to form a paste, so that the effects of the present invention can be more fully exhibited. Specifically, it is preferable to use it as a mixture with a silicone oil having a kinematic viscosity at 25 ° C. of 100 mm ² / s or less as the component (E) described later.

Examples of the component (A) include KSG-15, KSG-16, KSG-1610 (Shin-Etsu Chemical Co., Ltd.); 9546 Silicone Elastomer Blend (Toray Dow Corning); SFE-839 (GE Silicones); SUNEL C7 SUNEL CD20, SUNEL D20, SUNEL CP20, DC 1-9852 (SUNJIN); CHEMSIL K-61, CHEMSIL K-51 (Thornley Company); Lotioncrafter EL51, Lotioncrafter EL61 (Lotioncrafter) may be used. it can.
Among these, KSG-15 and KSG-16 are preferable in that they are well adapted to the skin and the dispersion of the hydrophobic powder is good.

  Component (A) may be used alone or in combination of two or more, and is contained in the total composition in an amount of 0.005 to 10% by mass, preferably 0.01 to 5% by mass, more preferably 0.05 to 3%. It is contained by mass. If it is in this range, the spread and familiarity when applied to the skin are good.

[Component (B)]
The component (B) polyethylene glycol used in the present invention has a number average molecular weight of 1000 to 3000, specifically, polyethylene glycol 1000 (PEG-20), polyethylene glycol 1540 (PEG-32), polyethylene glycol 2000. (PEG-40) etc. are mentioned. This number average molecular weight is determined according to the method described on page 1382 of “Quasi-drug raw material standard 2006” (Pharmaceutical Daily Inc., 2006).
Polyethylene glycol having a number average molecular weight of 1200 to 2000 is particularly preferred from the viewpoint of handling properties in production and the feel of cosmetics such as no stickiness. Specifically, polyethylene glycol 1540 (PEG-32) and polyethylene glycol 2000 (PEG-40) are preferable, and polyethylene glycol 1540 (PEG-32) is most preferable.

  Component (B) can be used alone or in combination of two or more, and is contained in the total composition in an amount of 0.1 to 10% by mass, preferably 0.2 to 7% by mass, more preferably 0.3 to 5%. It is contained by mass. Within this range, the skin feels good and a sticky feel can be obtained.

[Component (C)]
Component (C) used in the present invention is a plate-like powder obtained by hydrophobizing the surface of talc, silica, sericite, mica, and glass.
Of these, talc, silica, and glass are preferable, and talc is more preferable because a smooth and unsmooth skin feel can be obtained.

  The shape is not particularly limited, but preferably has an average thickness of 0.001 to 5 μm and an average particle diameter of 0.01 to 50 μm, and further has an average thickness of 0.01 to 2 μm and an average. Those having a particle diameter of 0.1 to 30 μm are preferable, and those having an average thickness of 0.01 to 1 μm and an average particle diameter of 1 to 30 μm are not squeaky or powdery when applied. This is preferable.

  As a method of hydrophobizing these powders, methods applied to ordinary cosmetic powders such as silicone treatment, fatty acid treatment, lauroyllysine treatment, surfactant treatment, metal soap treatment, fluorine treatment, lecithin In particular, silicone treatment, fatty acid treatment, and fluorine treatment are preferred. Specifically, as the silicone treatment, for example, treatment with methylhydrogenpolysiloxane, methylpolysiloxane, trimethylsiloxysilicic acid, triethoxycaprylylsilane, silicone resin, etc .; as the fatty acid treatment, for example, myristic acid, stearin Treatment with acid or the like; Examples of the fluorine treatment include treatment with pearl fluoroalkyl phosphate ester, perfluoroalkyl silane and the like. The amount of the hydrophobizing agent used is usually 0.5 to 50% by mass, particularly 1 to 30% by mass, based on the mass of the powder before the treatment.

  A component (C) can use 1 type (s) or 2 or more types, and is 0.1-20 mass% in the whole composition, Preferably it contains 0.5-10%. If it is in this range, the familiarity with the skin is good and the skin after application does not become whitish.

[Component (D)]
The hydrophobic organic spherical powder of component (D) used in the present invention is not particularly limited as long as it is used in ordinary cosmetics. For example, polyamide powder, nylon powder, polyester powder, polyethylene powder, polyquater Fluorinated ethylene powder, polypropylene powder, polystyrene powder, benzoguanamine powder, polymethylbenzoguanamine powder, polymethyl methacrylate powder, polyurethane powder, vinyl resin, fluorine resin, acrylic resin, melamine resin; silicone elastomer powder or polymethyl crosslinked with dimethyl silicone Silicone powder such as silsesquioxane powder; butyl acrylate / vinyl acetate copolymer, styrene / acrylic acid copolymer, divinylbenzene / styrene copolymer, ( Selected from poly (meth) acrylic acid, poly (meth) acrylic acid sodium, poly (meth) acrylic acid ester, poly (meth) acrylic acid alkylene glycol, such as lauryl tacrylate / ethylene glycol dimethacrylate copolymer Cross-linked or non-cross-linked organic spherical powders such as one or two or more polymer or copolymer powders may be mentioned. Moreover, about the hydrophobization process, the method similar to the method quoted previously is mentioned.
The average particle size of the powder is preferably from 0.1 to 50 μm, more preferably from 0.5 to 30 μm, and particularly preferably from 1 to 15 μm, from the viewpoint of good spread and familiarity with the skin.

  Component (D) is one selected from nylon powder, silicone powder, polyethylene powder, polymethyl methacrylate powder, acrylic acid, methacrylic acid, alkyl acrylate, alkyl methacrylate, alkylene glycol acrylate, and alkylene glycol methacrylate. Two or more polymer or copolymer powders are preferred.

  For example, KMP-590, KSP-100, KSP-101, KSP-105, KSP-300 (Shin-Etsu Chemical Co., Ltd.); Tospearl 120A, Tospearl 145A, Tospearl 2000B, Tospearl 1110A (Momentive Performance Materials Japan) ; Trefill E506S, Trefil E508, EP-9215, BY29-129 (Toray Dow Corning); Polytrap (Dow Corning); Flow beads CL-2080, Flow beads HE-3040, Flow beads EA-209 (Sumitomo) Olgasol (Arkema); Matsumoto Microsphere M, Matsumoto Microsphere M-100, Matsumoto Microsphere M-101, Matsumoto Microsphere M-201, Matsumoto Microphone Commercial products such as Rothsphere M-306, Matsumoto Microsphere S-100 (Matsumoto Yushi Seiyaku Co., Ltd.); Nylon SP-500, Nylon SP-10, Nylon SP-20 (Toray Industries, Inc.) can be used.

  In particular, polymethylsilsesquioxane powder KMP-590 (Shin-Etsu Chemical Co., Ltd.), Tospearl 120A, Tospearl 145A (Momentive Performance Materials Japan), Matsumoto Microsphere series polymethylmethacrylate powder (Matsumoto Yushi Seiyaku Co., Ltd.) is preferable in that it has a good spread at the time of application and a finish that does not cause whitening.

  Component (D) can be used alone or in combination of two or more, and is contained in the total composition in an amount of 0.1 to 20% by mass, preferably 0.5 to 10% by mass. Within this range, a uniform finish with no whitening can be obtained when applied.

[Component (E)]
Component (E) used in the present invention is a silicone oil having a kinematic viscosity at 25 ° C. of 100 mm ² / s or less. The kinematic viscosity at 25 ° C is measured using a capillary viscometer to measure the time during which a certain volume of liquid flows through the capillary of the viscometer at 25 ° C under one atmospheric pressure. Is used to calculate. As the capillary viscometer, Ubbelohde, Canon-Fenske and the like are generally used.
<Calculation method of kinematic viscosity>
Kinematic viscosity (mm ² / s) = Outflow time (seconds) x Viscometer constant

The silicone oil is not particularly limited as long as it is used in ordinary cosmetics, but is a linear or branched dimethicone having a low polymerization degree, which is a silicone oil having a kinematic viscosity at 25 ° C. of 100 mm ² / s or less. , Cyclic cyclosiloxane, methylphenylsiloxane, alkyl-modified silicone and the like.

  More specifically, linear dimethicone silicone KF-96 series 1-100CS (Shin-Etsu Chemical Co., Ltd.), silicone SH200 Fluid series 1-100CS, 2-1184 Fluid (above, Toray Dow Corning), TSF451 series 5A to 100A (Momentive Performance Materials Japan); TMF-1.5 (Shin-Etsu Chemical Co., Ltd.) which is a branched methyltrimethicone; KF- which is cyclic cyclopentasiloxane or cyclohexasiloxane 995 (Shin-Etsu Chemical Co., Ltd.), SH245 Fluid, DC345 Fluid, DC246 Fluid (Toray Dow Corning), TSF405, SF1258 (Momentive Performance Materials); SH1107C (East) Re Dow Corning), TSF484A (Momentive Performance Materials Japan); KF-50-100CS of diphenyldimethicone, a modified silicone, KF-56A of diphenylsiloxyphenyltrimethicone (above, Shin-Etsu Chemical Co., Ltd.) Capillylmethicone FZ-3196 (Toray Dow Corning), SILSOFT 034 (Momentive Performance Materials Japan), Cetyldimethicone 2502 Cosmetic Fluid, Phenyltrimethicone SH556 Fluid, Bis (hydroxyethoxypropyl) Dimethicone 5562 Carbinol Fluid (above, Toray Dow Corning), bisphenylpropyl dimethicone SF1555, ethyl trisiloxy Emissions of SILSOFT ETS (Momentive Performance Materials Inc.), and the like.

In particular, a linear or branched dimethicone or cyclic silicone having a kinematic viscosity at 25 ° C. of 20 mm ² / s or less is preferred in that it has a light spread and good spread on the skin. Specific examples include linear or branched dimethicone of 20 mm ² / s or less, cyclic cyclopentasiloxane, and cyclohexasiloxane. Silicone KF-96 (5CS), Silicone KF-96 (10CS), TMF -1.5 (above, Shin-Etsu Chemical Co., Ltd.), Silicone SH200 Fluid 2CS, Silicone SH200 Fluid 6CS, SH245 Fluid (above, Toray Dow Corning), SF1258 (Momentive Performance Materials Japan) It is done.

  Moreover, (E) As a compounding form of silicone oil, the form which swells the bridge | crosslinking type methylpolysiloxane which is a component (A), and uses it as gel silicone (for example, KSG-15, KSG-16, etc. of Shin-Etsu Chemical Co., Ltd.). In addition, the form used independently can be exemplified, but these forms may be used in combination. In this case, the amount of low-viscosity silicone oil used as the base oil is included in the content of component (E).

  Component (E) can be used alone or in combination of two or more, and is contained in the total composition in an amount of 5 to 80% by mass, preferably 10 to 70% by mass, more preferably 20 to 60%. Within this range, the component (A) can be sufficiently swollen, and the hydrophobic powders of the components (C) and (D) can easily adhere uniformly on the skin, and the effects of the present invention are sufficient. To be demonstrated.

[Component (F)]
The component (F) water is contained in the total composition in an amount of 1 to 60% by mass, more preferably 3 to 50%, and particularly 5 to 40% by mass. This is preferable.

In the water-in-oil emulsified cosmetic of the present invention, the combination of the components (A), (B), and (E) makes the elongation of the cosmetic very smooth. In particular, the mass ratio of the components (A) and (B) is (A) / (B) = 0.005 to 5, more preferably 0.01 to 3, particularly 0.1 to 2, but no stickiness. It is preferable in that it can be applied to the skin with an excellent feeling of use and without unevenness.
Further, the mass ratio of the components (C) and (D) is (C) / (D) = 0.01 to 10, more preferably 0.05 to 5, and particularly preferably 0.1 to 3 on the skin surface. It is preferable because it can cover uneven portions such as a skin mound and a skin groove and can form a very smooth decorative film.
Further, when ((A) + (B)) / ((C) + (D)) = 0.01 to 10, further 0.02 to 5, particularly 0.03 to 3, a finish like a foundation When the cosmetic is applied, the adhesion of the foundation is improved, the cosmetics are well spread, and the powder can be applied uniformly, so that the feeling of improvement in the makeup can be realized.

[Component (G)]
The water-in-oil emulsified cosmetic of the present invention can contain a nonionic surfactant having an HLB of 8 or less. In particular, it is desirable to contain (G) a polyether-modified silicone having an HLB of 8 or less. The polyether-modified silicone is a linear or branched silicone having a polyoxyalkylene chain in the molecule, and in addition to the polyoxyalkylene chain, an alkyl chain or a polyglycerin chain may be simultaneously modified.
Such a polyether-modified silicone has good compatibility with the cross-linked methylpolysiloxane of the component (A) and has excellent emulsifying performance. A polyether-modified silicone that is liquid at 25 ° C. is preferred in terms of better compatibility with the component (A). The HLB of the polyether-modified silicone is determined by the method shown below.

<Approximation method of HLB>
HLB value = polyether molecular weight / polyether modified silicone molecular weight × 0.2

Specifically, as commercially available products, PEG-3 dimethicone (KF-6015), PEG-10 dimethicone (KF-6017), PEG-9 methyl ether dimethicone (KF-6016), PEG-9 poly from Shin-Etsu Chemical Co., Ltd. Dimethylsiloxyethyl dimethicone (KF-6028), lauryl PEG-9 polydimethylsiloxyethyl dimethicone (KF-6038), PEG / PPG-20 / 22 butyl ether dimethicone (KF-6012), PEG / PPG-10 / 3 oleyl ether dimethicone (KF-6026); PEG / PPG-20 / 15 dimethicone (SF1528, SF1540) from Momentive Performance Materials Japan; PEG-10 dimethicone (SS-2910) from Toray Dow Corning, PEG-12 dimethicone (SH3772M, SH3773M, SH3775M), PEG / PPG-20 / 20 dimethicone (SH3749), PEG / PPG-19 / 19 dimethicone (BY22-008M, BY11-030, BY25-337), lauryl PEG / PPG-18 / 18 Methicone (5200 Formulation Aid), Polysilicone-13 (FZ-2222, FZ-2233, FZ-2231) and the like.
Further, PEG-3 dimethicone, PEG-10 dimethicone, PEG-12 dimethicone, PEG-9 polydimethylsiloxyethyl dimethicone, PEG / PPG-19 / 19 dimethicone, and polysilicone-13 are preferable, and PEG-3 dimethicone, PEG- 10 dimethicone, PEG-12 dimethicone, and PEG / PPG-19 / 19 dimethicone are preferred because they are less sticky and have good compatibility with cross-linked methylpolysiloxane.

  The component (G) can be used alone or in combination of two or more, and is contained in the total composition in an amount of 0.01 to 10% by mass, further 0.1 to 5% by mass, particularly 0.5 to 3% by mass. However, it is preferable from the viewpoints that it is not sticky and is well-familiar with the skin, and that the smoothness of the cosmetic film and the adhesion of the finished cosmetic are improved.

[Ingredient (H)]
The water-in-oil emulsified cosmetic of the present invention can contain powders other than the components (C) and (D), and the powder can be uniformly adhered on the skin. In particular, when (H) titanium oxide and zinc oxide are blended, a high ultraviolet protection effect can be obtained.
The average particle diameter of titanium oxide and zinc oxide is 0.001 to 1 μm, and the shape thereof is preferably, for example, granular, spherical, plate-like, spindle-like, dendritic, or balloon-like. Further, the surface of the powder of titanium oxide and zinc oxide can be surface treated with aluminum oxide, silicon oxide, zirconium oxide or the like to suppress the activity of the powder surface. Furthermore, the surface of these powders may be subjected to a hydrophobization treatment in order to maintain the UV protection effect and improve the feel of the powders. The hydrophobizing treatment can be performed in the same manner as the component (C).

  One or more of titanium oxide and zinc oxide can be used, or a combination of these can be used. The component (H) is preferably contained in the total composition in an amount of 1 to 50% by mass, particularly 3 to 30% by mass, since a sufficient ultraviolet protective effect can be obtained without whitening of the skin after application.

  The water-in-oil emulsified cosmetics of the present invention are components used in ordinary cosmetics in addition to the above components, for example, oily components other than the component (E), moisturizers, ultraviolet absorbers, dyes, thickeners, Surfactants, antioxidants, preservatives, vitamins, anti-inflammatory agents, fragrances, other medicinal ingredients, and the like can be appropriately contained.

  The water-in-oil emulsified cosmetic of the present invention includes, for example, (A) a silicone gel obtained by swelling a cross-linked methylpolysiloxane with (E) a low-viscosity silicone oil, and (C) a plate-like powder subjected to a hydrophobic treatment, (D) Hydrophobic organic spherical powder (further, (G) polyether-modified silicone, (H) titanium oxide powder, zinc oxide powder, and other oily components) are sufficiently stirred and mixed into an oil phase (F) A water phase in which (B) polyethylene glycol (and other aqueous components) is dissolved in water is added and emulsified, followed by high-speed stirring with a homogenizer or the like.

  Examples of the cosmetics of the present invention include skin care cosmetics such as emulsions and creams, makeup base cosmetics, makeup cosmetics, and UV protection cosmetics such as sunscreen emulsions and sunscreen creams. Among these, makeup base cosmetics and ultraviolet protective cosmetics are preferable, and ultraviolet protective cosmetics are particularly preferable.

  The cosmetic of the present invention has a viscosity at 25 ° C. of 100 to 150,000 mPa · s, more preferably 500 to 100,000 mPa · s, particularly 1000 to 50000 mPa · s. This is preferable in that the effect is clearly exhibited. The viscosity is a value obtained by measuring with a Brookfield BL / BM / BH viscometer at a rotational speed of 6 rpm or 12 rpm for 1 minute at 25 ° C. using a rotor corresponding to the viscosity.

Examples 1-7 and Comparative Examples 1-3
Cosmetics having the compositions shown in Table 1 and Table 2 were produced by the following production method. About the obtained cosmetics, the viscosity is measured, feeling of use (goodness of spread, goodness of fit, no stickiness, no powderiness, no bulkiness), UV protection effect (water resistance) and its persistence The effect, the state change of the coating film, and the non-uniformity of coating of the finished cosmetic were evaluated. The results are shown in Table 1 and Table 2 together.

(Production method)
The component (A) is sufficiently mixed with the component (E) in advance to swell the component (A), and then the other oil phase components (including the component (G)) and powders (components (C), (D ) And (H) are added, and after sufficiently stirring with a disper at room temperature, an aqueous phase (including components (B) and (F)) dissolved by heating and stirring in advance is added and mixed at room temperature. . It was transferred to the Ajihomo mixer, and the emulsified particles were uniformly adjusted, and the powders were uniformly and finely dispersed. After stirring at high speed for 30 minutes, deaeration was performed to obtain a water-in-oil emulsified cosmetic. .

(Evaluation method)
(1) Viscosity:
For each cosmetic, No. 1 was measured with a Brookfield BM viscometer at a rotation speed of 6 rpm. When measured at 25 ° C. using a rotor No. 3, the value after 1 minute was shown.

(2) Feeling of use:
Ten professional panelists use “Goodness”, “Familiarity”, and “No stickiness” when using each cosmetic, and “No powdery” after 5 hours of application. Sensory evaluation was conducted on “no roughness” and the determination was made according to the following criteria.
A: 9 to 10 people evaluated it as good.
A: Seven to eight people evaluated it as good.
(Triangle | delta): Four to six persons evaluated it as favorable.
X: Three or less people evaluated it as favorable.

(3) UV protection effect and its lasting effect (water resistance test), change in state of coating film:
In vitro SPF was measured for each cosmetic. That is, each cosmetic was uniformly applied to a surgical tape on a quartz glass plate so as to be ² mg / cm ² , left to dry for 20 minutes or more, and then irradiated with ultraviolet rays from a certain distance (10 mm). The transmitted ultraviolet rays at that time were detected at five or more locations on the tape in the range of 290 to 400 nm with an SPF analyzer (UV-1000S, manufactured by Labsphere), and an averaged spectrum was obtained. In vitro SPF values were calculated by multiplying this spectrum by the effect factor.
Further, the sample after the SPF value measurement was immersed in a 37 ° C. water bath with the glass plate and the coated surface facing upward, and the water was kept lightly stirred for 80 minutes while keeping the water temperature at 37 ° C. After completion, the glass plate was slowly taken out, allowed to stand for 30 minutes or more and dried, and then the SPF value was measured again in the same manner as described above.

Furthermore, in order to investigate the state change of the coating film of the sample before and after the water immersion treatment, the sample surface was subjected to a high-resolution direct skin analyzer system (digital high-scope system KH-2700, manufactured by Hilox) before measuring the SPF value in advance. Take 3 or more images with a 20x camera. The same part of the sample after the immersion treatment was photographed in the same manner, and compared with the previous and subsequent photographed photographs, and compared and observed for uniformity, absence of powder aggregation, etc., and judged according to the following criteria.
<Change in state of coating film>
A: No change at all.
○: Almost no change.
(Triangle | delta): The agglomeration of a powder and a nonuniform state are observed partially.
X: The application part has peeled off from the application surface, or powder agglomerates and application unevenness are conspicuous.

(4) No unevenness in application of finish cosmetic (uniform powder adhesion):
Each cosmetic is uniformly applied at 1 mg / cm ² on a 5 × 5 cm square of the human forearm bent side. After air-drying for 3 minutes, each cosmetic is applied, and then a solid powder type powder foundation (see below for composition) is used as the final cosmetic, so that the powder foundation puff is 0.1 mg / cm ² Apply to. The coated part is imaged with a 100 times camera of a high-resolution direct skin analyzer system (digital high-scope system KH-2700, manufactured by Hilox). The obtained grayscale digital image (total number of pixels: 307,200 pixels) is subjected to two-gradation processing at a certain threshold using image processing software to extract the agglomerated portion of the powder foundation powder, The total area (pixel unit) of the white portion (aggregated portion of the powder) is obtained. The larger the total area of the white part, the more the foundation powder is agglomerated, which means that coating unevenness occurs. When only the cosmetics of the present invention are applied (before applying the powder foundation), it is confirmed that the white portion is hardly recognized even if the same analysis is performed.

<Composition composition table of finishing cosmetic (solid powder powder foundation)>
Zinc stearate 2.0 (mass%)
Fluorine-treated talc 45.0
Fluorine-treated polymethyl methacrylate 6.0
Propylparaben 0.3
Squalane 3.0
2-Ethylhexyl paramethoxycinnamate 2.0
Dimethylpolysiloxane 8.0
Fluorine-treated Bengala-coated mica titanium 12.0
Fluorine-treated mica titanium 7.0
Fluorine-treated silicic acid 1.0
Fluorine-treated zinc oxide 3.1
Fluorine-treated titanium oxide 8.0
Fluorine-treated Bengala 0.6
Fluorine-treated yellow iron oxide 1.8
Fluorine-treated black iron oxide 0.2

  Each of the cosmetics of Examples 1 to 7 has a good feeling of use and a feeling of skin over time, a high ultraviolet protection effect, and a high water resistance. Even when the coating films before and after the water resistance test were compared, no change was observed, and no agglomeration of the powder was observed, indicating a uniform state. Furthermore, the cosmetic film when the powder foundation of the finished cosmetic is applied after applying the product of the present invention has no powder agglomeration, the powder is evenly adhered to the skin, and has a beautiful finish with no unevenness. It was.

Example 8 (W / O cream)
W / O creams having the compositions shown in Table 3 were produced in the same manner as in Examples 1-7.
The resulting cream had an excellent feeling of use that was smooth and non-sticky, and did not become sticky or powdery over time. Furthermore, after applying this cream, when a powder foundation of the finished cosmetic was layered, it was a natural and beautiful makeup finish with good makeup.

Example 9 (W / O sunscreen cream)
W / O sunscreen creams having the compositions shown in Table 4 were produced in the same manner as in Examples 1-7.
The resulting cream has a smooth, smooth and non-sticky feel, and does not become sticky or powdery over time, providing a high UV protection effect and excellent durability (water resistance). Indicated. Furthermore, after applying this cream, when a powder foundation of the finished cosmetic was layered, it was a natural and beautiful makeup finish with good makeup.

Example 10 (W / O makeup base cosmetic)
W / O makeup base cosmetics having the compositions shown in Table 5 (types to shake before use) were produced in the same manner as in Examples 1-7.
The resulting foundation has an excellent feeling of use that is smooth and smooth, and does not become sticky or powdery over time, providing a high UV protection effect and excellent durability (water resistance). Indicated. Furthermore, when this foundation was applied and then a powder foundation of the finished cosmetic was layered, it was a natural and beautiful makeup finish with good makeup.

Example 11 (W / O foundation)
W / O foundations having the compositions shown in Table 6 were produced in the same manner as in Examples 1-7.
The resulting foundation has an excellent feeling of use that is smooth and sticky, does not become sticky or powdery over time, has a good makeup, and has a uniform cosmetic film with no coating unevenness. Formed. Moreover, the high ultraviolet-ray protective effect and the outstanding effect persistence (water resistance) were shown. Furthermore, when this foundation was applied and then a powder foundation of the finished cosmetic was layered, it was a natural and beautiful makeup finish with good makeup.

Claims (4)

The following components (A) to (F):
(A) Cross-linked methylpolysiloxane (dimethicone / vinyl dimethicone) crosspolymer 0.005 to 10% by mass,
(B) 0.1 to 10% by mass of polyethylene glycol having a number average molecular weight of 1200 to 2000 ,
(C) 0.1-20% by mass of a plate-like powder obtained by hydrophobizing the surface of a plate-like powder selected from talc, silica, sericite, mica and glass,
(D) hydrophobic organic spherical powder 0.1-20% by mass,
(E) 5-80% by mass of a silicone oil having a kinematic viscosity at 25 ° C. of 100 mm ² / s or less,
(F) A water -in- oil emulsified cosmetic containing water and having a mass ratio of components (A) and (B) of (A) / (B) = 0.005-3 .   The water-in-oil emulsified cosmetic according to claim 1, further comprising (G) 0.01 to 10% by mass of a polyether-modified silicone having an HLB of 8 or less.   The water-in-oil emulsified cosmetic according to claim 1 or 2, further comprising (H) 1 to 50% by mass of titanium oxide or zinc oxide. The mass proportion of components (A), (B), (C) and (D) is
(C) / (D) = 0.01-10,
((A) + (B)) / ((C) + (D)) = 0.01-10
The water-in-oil type emulsified cosmetic according to any one of claims 1 to 3.