JP2020164480A - Powder cosmetics - Google Patents

Abstract

To develop a powder cosmetic, with which although the present invention is a powdered cosmetic, it liquefies and becomes fresh when rubbed during use, it feels a change in temperature sensation (cold feeling or warm feeling), there is no powdery or squeaky feeling, it spreads smoothly when applied so as to provide uniformity, color development and luster, high emollient feeling, and in which since the outermost surface of the cosmetic film is covered with a continuous film of fluorine oil by blending fluorine oil water-oil repellent and resistant to sweat and sebum is maintained for a long time, which has a good secondary adhesion-less effect, and an excellent stability over time for maintaining a powdered state.SOLUTION: There is provided a powder cosmetic, that contains (A) hydrophobicized silicic acid anhydride with a specific surface area of 25 m2/g or more, (B) aqueous components, (C) colorant and (D) fluorine oil, and that is liquefied by rubbing.SELECTED DRAWING: None

Description

Although the present invention is a powder cosmetic, when it is rubbed during use, it liquefies and becomes fresh, and it feels a change in temperature sensation (cold or warm feeling), and there is no powdery or squeaky feeling, and it is uniform due to smooth spreading and spreading during application. The present invention relates to a powder cosmetic having a high emollient feeling, a secondary adhesion-less effect, and an excellent stability over time that maintains a powdered state while having a property, a coloring property and a glossy feeling.

Conventionally, white powder, whitening powder, foundation, eye shadow, cheek color, etc. are known as powder-form cosmetics. Although it is preferable to have a light feel and long-lasting makeup, the powder scatters during use and the finish is powder. There were problems such as dry skin and dry skin. Further, in the emulsified cosmetics, although the moisturizing property can be imparted, the makeup-holding effect tends to be insufficient. Therefore, attempts have been made to add elements of water, oil, and liquid emulsified cosmetics to powdered cosmetics for the purpose of promoting the penetration of the drug into the skin, imparting water, oil, moisturizing properties, and emollient properties.
For example, as disclosed in Patent Documents 1 to 3, a specific amount of powder, water, and an oily component treated with a specific hydrophobic anhydride silicic acid and a compound having a specific perfluoropolyether group are combined and rubbed. Liquefied powder cosmetics have been developed.
Further, as exemplified in Patent Document 4, a make-up protective agent containing trifluoropropylcyclopolysiloxane, fluorine compound-treated silica, and a partially crosslinked fluorine-modified organopolysiloxane polymer, which has a secondary adhesion-less effect. It is being developed.

JP-A-5-65212 Japanese Unexamined Patent Publication No. 2000-264813 Japanese Unexamined Patent Publication No. 2005-232162 WO2017 / 170704 Pamphlet

However, for example, the powder cosmetics described in Patent Documents 1 to 3 have relatively high cosmetic properties such as emollient feeling and water repellency and oil repellency resistant to sweat and sebum, but all of them are coated with a fluorine compound. Since powder is used and it is localized on the skin because it is powder, it partially has strong water and oil repellency and lacks the continuity of the cosmetic film, and depending on the part used, it has makeup. However, the secondary adhesion-less effect, the effect of improving color development and glossiness were not always at a satisfactory level.
Further, for example, the protective material having a secondary adhesion-less effect described in Patent Document 4 is an oil-based dosage form, which spreads and spreads freshly, and newly imparts a change in temperature sensation (cold feeling or warm feeling) and moisture. There was no effect, and it was difficult to achieve both the secondary adhesion-less effect. In addition, when applied thickly over the cosmetics, the internal color development and glossiness may be impaired depending on the cosmetics.

Therefore, even though it is a powdered cosmetic, it liquefies when rubbed during use, and it feels a change in temperature sensation (cold or warm feeling), there is no powdery or squeaky feeling, and it is uniform due to smooth spreading and spreading during application. It has a high emollient feeling while having properties, color development and luster, and since the outermost surface of the cosmetic film is covered with a continuous film of fluorine oil by blending fluorine oil, it has water and oil repellency that is strong against sweat and sebum. There has been a demand for a powdered cosmetic that lasts, has a good effect of eliminating secondary adhesion, and has excellent stability over time to maintain a powdered state.

In such a situation, as a result of diligent research, the present inventors have found that when a cosmetic powder obtained by powdering a specific hydrophobic anhydride silicic acid, a colorant and an aqueous component contains fluorine oil, it is used even though it is a powdered cosmetic product. Occasionally, when rubbed, it liquefies and becomes fresh, and there is a change in temperature sensation (cold or warm feeling), there is no powdery or squeaky feeling, and it has uniformity, color development and luster due to smooth spreading and spreading during application. However, it has a high emollient feeling, and has a cosmetic lasting and secondary adhesion-less effect due to the long-term adhesion of powder and strong water- and oil-repellent properties against sweat and sebum, and also maintains the powder state over time. The present invention has been completed by finding that a powdered cosmetic having excellent stability can be obtained. Furthermore, by blending a fluorine oil thickener in addition to the above components, it becomes easier to hold the fluorine oil and stabilize the dispersion, and the fluorine oil content can be increased, resulting in the emollient feeling of powdered cosmetics and sweat. It has been found that the water- and oil-repellent properties that are resistant to sebum are further enhanced, and the secondary adhesion-less effect is further improved.

That is, the present invention includes the following.
[1] The following components (A) to (D);
(A) Hydrophobicized silicon dioxide having a specific surface area of 25 m ² / g or more (B) One or more selected from (b-1) water and (b-2) polyhydric alcohol as an aqueous component (C) Colorant (D) A powdered cosmetic containing fluorine oil and liquefied by rubbing.
[2] A powder cosmetic containing the component (E) fluorine oil thickener.
[3] A powder cosmetic containing (b-3) a water-soluble polymer in the component (B).
[4] A powder cosmetic containing 0.5 to 35.0% by mass of the component (D) and the component (E) in total.
[5] A powdered cosmetic containing sugar alcohol as the component (b-2).
[6] A powder cosmetic that changes color when rubbed.
[7] Provided is a powdered cosmetic used as a make-up cosmetic.

Although the present invention is a powder cosmetic, it liquefies and is fresh when rubbed during use, feels a change in temperature sensation (cold feeling or warm feeling), does not have powdery or squeaky feeling, and spreads smoothly when applied. It has a high emollient feeling while having uniformity, color development and glossiness, and the outermost surface of the cosmetic film is covered with a continuous film of fluorine oil by blending fluorine oil, so the secondary adhesion-less effect is good. Furthermore, it is a powder cosmetic that maintains a powdered state and has excellent stability over time.

Hereinafter, the present invention will be described in detail. In addition, in this specification, "~" means the range including the numerical values before and after that, and% unless otherwise specified means mass%. The "average particle size" in the present invention is a median diameter D50 value obtained by measurement with an image analyzer (Luzex AP, manufactured by Nireco). In the case of an asymmetrical shape, the median diameter D50 obtained from the distribution of the largest particle diameter is used as the average particle diameter this time. Further, the "specific surface area" shall be the one using the BET method.

The component (A) of the present invention is hydrophobicized silicic acid anhydride having a specific surface area of 25 m ² / g or more. Preferably, fuzzy anhydrous silicic acid having an average particle diameter of 0.001 to 0.1 μm is hydrophobized. Commercially available products include, for example, AEROSIL R974 (specific surface area 170 ± 20 m ² / g, dimethyldichlorosilane treatment), AEROSIL R972 (specific surface area 110 ± 20 m ² / g, dimethyldichlorosilane treatment), AEROSIL RX200 (specific surface area 140 ±). 25m ² / g, hexamethyldisilazane treatment), AEROSIL RX300 (specific surface area 210 ± 20m ² / g, hexamethyldisilazane treatment), AEROSIL NX90G (specific surface area 65 ± 15m ² / g, hexamethyldisilazane treatment), AEROSIL RX50 (specific surface area 35 ± 10 m ² / g, hexamethyldisilazan treatment) (both manufactured by Nippon Aerosil Co., Ltd.), Cabosil TS-530 (specific surface area 205-250 m ² / g, hexamethyldisilazan treatment) (Cabot) (Manufactured by the company) and the like. Component (A) has a specific surface area by the BET method, ^{25 m} 2 / g or more as the lower limit, preferably ^{50 m} 2 / g or more, more preferably ^{80 m} 2 / g or more, the upper limit is preferably 300 meters ² / g Below, it is more preferably 250 m ² / g or less, still more preferably 200 m ² / g or less. If the specific surface area is small, the surface of the aqueous component of the component (B) cannot be covered, many aqueous components cannot be stably powdered, the specific surface area is too large, and the dispersed aqueous component cannot be covered. If it exceeds the surface area, the squeaky feeling becomes strong and the smooth usability and emollient feeling are insufficient.
The type of hydrophobization treatment is not particularly limited, and for example, treatment may be performed with halogenated silanes, alkoxysilanes, silazanes, siloxanes, or the like. These treatments are preferable in terms of smooth spread and spread, and examples thereof include hexamethyldisilazane treatment, dimethyldichlorosilane treatment, and dimethylpolysiloxane treatment, and hexamethyldisilazane treatment is preferable because the degree of hydrophobicity tends to increase.

The content of the component (A) of the present invention is not particularly limited, but is preferably 0.1 to 8%, more preferably 1 to 6%, and further preferably 2 to 5%. Within this range, the aqueous component can be sufficiently powdered to maintain the powder form, the squeaky feeling of the powder is less likely to be felt, and the emollient feeling can be maintained.

The component (B) of the present invention is an aqueous component, and is composed of water or a component that dissolves and swells in water. The more aqueous components with low polarity that are dissolved, the more difficult it is to powder and the more likely it is to become unstable. The state of the component (B) may be liquid or solid by a water-soluble gelling agent containing the component (b-3), but the solid state improves stability over time and long-lasting makeup. To do.

The total content of the component (B) of the present invention is not particularly limited, but the cosmetic can be stably powdered, the release of the aqueous component at the time of rubbing is good, and the property changes from the powder to the liquid state. The lower limit is preferably 10% or more, more preferably 20% or more, still more preferably 40% or more, and the upper limit is that the freshness and the change in temperature sensation (cold feeling or warm feeling) can be sufficiently felt. Is preferably 90% or less, more preferably 80% or less, still more preferably 70% or less.

The water of the component (B) (b-1) of the present invention is not particularly limited, but is purified water, hot spring water, deep water, aloe vera, witch hazel, hamamelis, cucumber, lemon, orange, lavender, rose, etc. It may be water such as steam distilled water of the plant. The pH and the amount of salt are not particularly limited.

The polyhydric alcohol (b-2) of the component (B) of the present invention has a large number of hydroxyl groups, and has antiseptic properties, moisturizing properties, a smooth feeling of use such as squeak relief, a taste improving effect, and heat absorption of the material. It contributes to changes in warmth due to heat generation. For example, glycols such as propylene glycol, 1,3-butylene glycol, 1,2-pentanediol, dipropylene glycol and polyethylene glycol, glycerols such as glycerin, diglycerin and polyglycerin, stevia, erythritol, maltitol and xylitol. , Aspartame, sugar alcohols such as sorbitol, etc., and one or more of these can be used. In particular, by containing sugar alcohol, in lip cosmetics, it is possible to have an effect of alleviating the bitterness of polyhydric alcohol by imparting sweetness, and in skin cosmetics, a change in temperature sensation (change in temperature sensation ( It is possible to enhance the effect of making people feel cold. Further, by containing a large amount of glycerin, it is possible to enhance the effect of feeling a change in temperature sensation (warm sensation).

The content of (b-2) of the component (B) of the present invention is not particularly limited, but is characterized in that it exhibits changes in temperature sensation such as antiseptic property, moisturizing property, smooth usability, refreshing feeling and warmth. The lower limit is preferably 1% or more, more preferably 3% or more, further preferably 8% or more, and the upper limit is preferably 50% or less, more preferably 30% or less, still more preferably 20% or less. is there.

The component (C) of the present invention can be used without particular limitation as long as it is usually used in cosmetics. Specifically, it is a white inorganic substance such as titanium oxide, zinc oxide, cerium oxide, and barium sulfate. Colored inorganic pigments such as pigments, iron oxide, carbon black, titanium / titanium oxide sintered products, chromium oxide, chromium hydroxide, dark blue, ultramarine, red 201, red 202, red 205, red 226, red 228 No., Orange No. 203, Orange No. 204, Blue No. 404, Yellow No. 401, etc., Red No. 3, Red No. 104, Red No. 106, Orange No. 205, Yellow No. 4, Yellow No. 5, Green No. 3, Blue No. 1 Examples thereof include organic pigments such as zinc oxide, barium or aluminum lake, astaxanthin, carthamin, shikon, cutinashi, β-carotene, polyphenols, and natural pigments such as anthocyanin. A wide range of appearance colors and hues at the time of application can be selected for powdered cosmetics.

The component (C) of the present invention may be surface-treated as long as the effect of the present invention is not impaired, and is not particularly limited. Surface treatment is performed using one or more of fluorine compounds, silicone compounds, metal soaps, lecithin, hydrogenated lecithin, collagen, hydrocarbons, higher fatty acids, higher alcohols, esters, waxes, waxes, surfactants, etc. You may have it.

The component (D) of the present invention is an oil agent having a fluorine group, and although the structure of the skeleton is not particularly limited, it has water repellency and oil repellency, and has fluidity at 25 ° C. Specific examples thereof include perfluoromethylisopropyl ether and fluoroalkyl group-containing organopolysiloxane, and one or more of these can be used. Specific examples of perfluoromethylisopropyl ether include FOMBLIN HC / 04 (average molecular weight 1,500), FOMBLIN HC / 25 (average molecular weight 3,200), and FOMBLIN HC / R (average molecular weight 6,250) (Ausimon). Made by the company). Further, the fluoroalkyl group-containing organopolysiloxane may be linear, branched, or cyclic, and may be linear, specifically FL-100, X-22-819, X-. Examples thereof include 22-820, X-22-821, X-22-822 (manufactured by Shin-Etsu Chemical Co., Ltd.), and FS-1265 (manufactured by Toray Dow Corning Co., Ltd.). Examples of the cyclic one include trifluoropropylcyclotetrasiloxane / trifluoropropylcyclopentasiloxane (KF-5002: manufactured by Shin-Etsu Chemical Co., Ltd.).

The component (E) of the present invention has the effect of thickening the component (D), gelling it, appropriately solidifying it, and stably dispersing it. The component (D) having a fluorine group is the component (D). Increase the affinity of. For example, a partially crosslinked fluorine-modified organopolysiloxane polymer or a fluorine compound-treated silica can be mentioned. One or two of these can be used.

The partially crosslinked fluorine-modified organopolysiloxane polymer of the component (E) of the present invention is a compound in which a fluorine-substituted alkyl group is introduced into a silicone-based elastomer having a three-dimensional structure having a partially crosslinked bond. Examples of such a partially crosslinked fluorine-modified organopolysiloxane polymer include a cross-polymer under the INCI name (trifluoropropyldimethicone / trifluoropropyldivinyldimethicone). These can be dispersed in an organic solvent, and commercially available products include, for example, KSG-51 (KSG-51), which is a mixture of the component (D), trifluoropropylcyclotetrasiloxane / trifluoropropylcyclopentasiloxane. Solid content 20%, manufactured by Shin-Etsu Chemical Industry Co., Ltd.) and the like.

Specific examples of the fluorine compound-treated silica of the component (E) of the present invention include perfluorohexylethyltriethoxysilane-treated silica and dimethylsilylated silica treated in the same manner. The silica of the fluorine compound-treated silica may be hydrophobized in advance before the fluorine compound treatment, and examples thereof include hexamethyldisilazane treatment, dimethyldichlorosilane treatment, and dimethylpolysiloxane treatment, and in particular, dimethyldichlorosilane treatment. Or dimethylpolysiloxane-treated one may be used. The base silica may be any as long as it is used in ordinary cosmetics, and either an amorphous one or one having a crystal structure can be used. Commercially available products include Silocia 550, Silocia 770, Silo Fair C-1504 (manufactured by Fuji Silysia Chemical Ltd.), AEROSIL200, AEROSIL300, AEROSILR972 (manufactured by Nippon Aerosil), Nip Seal E-220 (manufactured by Nippon Silysia Chemical Ltd.). ) Etc. can be exemplified. In particular, silicic anhydride which is in the form of fumes and has a primary particle size of 50 nm or less is preferable. Examples of such silicic anhydride include AEROSIL 200, AEROSIL 300, and AEROSIL 380S (all manufactured by Nippon Aerosil Co., Ltd.) as commercially available products, and AEROSIL R-972 as a surface-treated product. , AEROSIL R-974, AEROSIL R-976S (all manufactured by Nippon Aerosil Co., Ltd.) and the like. By treating the silica with a fluorine compound, the gelling power to the component (D) is enhanced. The amount of the fluorine compound treated to silica is preferably 5 to 40%, more preferably 10 to 40%, still more preferably 15 to 30% with respect to the mass of silica.

The content of the component (E) of the present invention is preferably 0.1% or more, more preferably 0.3% or more, further preferably 0.5% or more, and preferably 12% or less as the upper limit. It is more preferably 7% or less, still more preferably 4% or less. Within this range, the function of agglomeration and powdering the aqueous component is not impaired. The content ratio of the component (D) and the component (E) is preferably component (D) / component (E) = 1 or more.

The total content of the components (D) and (E) is preferably 0.5% or more, more preferably 1% or more, still more preferably 3.0% or more as the lower limit, and preferably 3.0% or more as the upper limit. Is 35% or less, more preferably 25% or less, still more preferably 20% or less. Within this range, an emollient feeling and a secondary adhesion-less effect are exhibited, and the price is acceptable without causing aggregation with the component (A) or interfering with the function of the component (B) having the component (A).

The water-soluble polymer (b-3) of the component (B) of the present invention gels water by dissolving or swelling in water, and for example, agar, guar gum, locust bean gum, quince seed gum. , Fasenlan, carrageenan, sodium alginate, gellan gum, pectin, konjak and other plant-based natural polymers, gelatin, proteoglycan, chondroitin sodium sulfate and other animal-based natural polymers, methylcellulose, hydroxymethylcellulose, hydroxyethylcellulose, hydroxypropylcellulose, Semi-synthetic polymers such as cellulose derivatives such as hydroxypropylmethylcellulose and carboxymethylcellulose, vinyl carboxylate (co) polymers such as polyethylene glycol, polyvinyl alcohol, polyvinylpyrrolidone, vinyl acetate (co) polymer, and (meth) acrylic acid (meth) Co) polymer, sodium (meth) acrylate (co) polymer, etc., carboxyvinyl polymer, alkyl-modified carboxyvinyl polymer, polyvinylpyrrolidone, bismethoxyPEG-13 (PEG-438 / PPG-110 / SMDI) copolymer, (PEG Urethane-based polymers such as -240 / decyltetradeceth-20 / HDI) copolymers, (Na acrylate / Na acryloyldimethyltaurine) copolymers, (Acryloyldimethyltaurine ammonium / Behenes methacrylate-25) crosspolymers, (Acryloyldimethyltaurine) Ammonium / vinylpyrrolidone) copolymers, and synthetic polymers such as 2-acrylamide-2-methylsulfonic acid such as (acryloyldimethyltaurinammonium / dimethylacrylamide) crosspolymer or polymers having salts thereof as constituents, sodium magnesium silicate, Examples thereof include water-swellable clay minerals such as hydrous aluminum silicate, montmorillonite, saponite, hectrite, and fluorotetrasilicon mica, and one or more of these can be used. These aqueous gelling agents can be stabilized over time by coating the surface of component (A) after gelling water and then refining the water by high-speed shearing or crushing by freeze-grinding. From the viewpoint of ease of treatment and improvement of storage stability, agar, gelatin, carrageenan, gellan gum, sodium magnesium silicate, sclerothium gum, sodium chondroitin sulfate, (Na acrylate / Na acryloyldimethyltaurine) copolymer, ( Those that form a hard gel with water, such as PEG-240 / decyltetradeceth-20 / HDI) copolymers, are preferred. The content of the component (b-3) is not particularly limited, but is appropriately adjusted and used within the range in which the component (B) is liquefied when the powder cosmetic is used. It may be preferably contained in an amount of 0.5 to 20%, more preferably 1 to 10%, still more preferably 2 to 6%.

Further, in the powdered cosmetic of the present invention, if necessary, as long as the effect of the present invention is not impaired, components usually used in cosmetics, that is, powders and components other than the components (A) and (C) Oils other than (D), surfactants, menthol, camphor, peppermint oil, eucalyptus oil and other cold stimulants, capsaicin, nonyl acid vanillylamide, benzyl nicotinate, capsicum and other warm stimulants, film-forming agents, hydrophilic To impart various effects to beauty ingredients such as sex UV absorbers, salts, pH adjusters, antioxidants, moisturizers, vitamin C derivatives, pantenol, heparinoids, preservatives such as phenoxyethanol, and fragrances. It can be contained as appropriate.

As the powder other than the components (A) and (C), feel adjustment, ultraviolet scattering ability, make-up effect and the like can be imparted. As long as they are usually used for cosmetics, they are not particularly limited by the shape such as spherical, plate-shaped, spindle-shaped, needle-shaped, particle size, porous, non-porous, etc., and are inorganic powders. Examples thereof include body types, bright powders, organic powders, pigment powders, and composite powders. Specifically, fine particle titanium oxide with low coloring effect, fine particle zinc oxide with low coloring effect, magnesium carbonate, calcium carbonate, aluminum hydroxide, chromium hydroxide, aluminum silicate, magnesium silicate, magnesium aluminum silicate, smectite, Inorganic powders such as bentonite, kaolin, boron nitride, bismuth oxychloride, titanium mica, iron oxide-coated mica, iron oxide-coated mica titanium, organic pigment-coated mica titanium, titanium oxide-coated glass powder, bright powder such as aluminum powder. Examples include organic powders such as body, magnesium stearate, zinc stearate, N-acyllysine, cellulose powder, crystalline cellulose powder, polystyrene, nylon, silicone powder, etc., and one or more of these should be used. Can be done. Further, these powders may be one kind or a composite of two or more kinds, and are known by using fluorine compounds, silicone-based oils, metal soaps, waxes, surfactants, fats and oils, hydrocarbons and the like. It may be surface-treated by a method.

The oil agent other than the component (D) is not particularly limited, but is not particularly limited in solid form, paste form, liquid form, or property. For example, regardless of the origin of animal oils, vegetable oils, synthetic oils and the like, hydrocarbons, fats and oils, ester oils, fatty acids, higher alcohols, silicone oils, organic ultraviolet absorbers and the like can be mentioned.

The surfactant is not particularly limited as long as it is a surfactant generally used in cosmetics, and nonionic surfactants, anionic surfactants, cationic surfactants, amphoteric surfactants and the like are used. To. Examples of the moisturizer include proteins, mucopolysaccharides, collagen, elastin, keratin and the like. Antioxidants include, for example, α-tocopherol, ascorbic acid, beauty ingredients include, for example, vitamins, anti-inflammatory agents, crude drugs, etc., and preservatives include, for example, paraoxybenzoic acid ester, chlorphenesin, alkanediol, etc. Are listed respectively.

The structure of the powdered cosmetic of the present invention is mainly divided into an aqueous layer, an oil layer, and an air layer, and the component (B) which is the aqueous layer is coated with the component (A), and an air layer is formed in the outer layer to be powdered. When the oil layer containing the component (D) and the component (E) is dispersed on the outside or the surface of the component (A), and the powder layer containing the component (C) is present between the layers or inside the respective layers. Conceivable. The powder layer containing the component (C) preferably has a hydrophobic surface when dispersed in the air layer, and preferably has a hydrophilic surface when dispersed in the inner aqueous layer. When force is applied by rubbing, this structure is destroyed, and the powdered component (B) shifts from the inside to the outer layer and liquefies, giving a fresh spread and a change in temperature sensation (cold feeling or warm feeling). , The powder layer is dispersed in either the aqueous layer or the oil layer to uniformly form a decorative film, and in particular, the components (D) and (E) form a film on the uppermost layer, thereby achieving a secondary adhesion-less effect. It is thought that it will be demonstrated. However, this does not apply to the structure.

Regarding the content position of the component (C) of the present invention, the component (C) is simultaneously blended in two of the three layers of the aqueous layer, the oil layer, and the air layer, and the component (C) further blended in each layer. It may be possible to create a gap between the appearance color and the color at the time of application when the overall hue of the is different. It is desirable to consider the content position according to the polarity of the surface of the component (C), and the one with high polarity is in the component (B), the one with low polarity and the one with high hydrophobicity are the air layer or the component ( When blended in an oil layer containing D), stability over time is improved. For example, the oil-soluble colorant which is an oil-soluble dye such as red 218 and red 223 which is the component (C) is used in the oil layer, and the water-soluble colorant which is a water-soluble dye such as red 227 is contained in the component (B). The hydrophilic surface component (C) is used simultaneously in the aqueous layer, and the hydrophobic surface component (C) is used simultaneously in the air layer, or the hydrophobic surface component (C) is pre-dispersed in the oil layer. By simultaneously using the hydrophobic surface component (C) in the air layer, a gap between the appearance color and the color at the time of application can be created. However, the method is not limited to this method.

The production method of the present invention is not particularly limited, but for example, the component (D) and the component (E) are uniformly mixed in the powder cosmetic obtained by mixing and dispersing the component (A) and the component (B). A method of dispersing the substances is mentioned, and in the above operation, a powder cosmetic having the above structure can be obtained. The manufacturing equipment is not particularly limited, and the component (B) and the oil layer may be freeze-milled or stirred and dispersed in advance to form particles and stabilized by the powder layer, depending on the hardness.

The powdered cosmetic of the present invention is not particularly limited, but can be used for body powder, foundation, blusher, white powder, eye shadow, eyeliner, eyebrow, lipstick, lip cream, sunscreen, beauty liquid, etc. It is suitable for use in blusher or eye shadow, lip cosmetics, foundation, and sunscreen because of its excellent uniformity and long-lasting makeup. The method of use can be any method such as applying the cosmetic directly, or applying it using a finger, a puff, a sponge tip, a prop such as a brush, or the like.

Hereinafter, the present invention will be described in more detail with reference to Examples, but the present invention is not limited thereto.

Examples 1-18, Comparative Examples 1-6: (Makeup powder cosmetics)
The powder cosmetics having the compositions of Examples 1 to 18 and Comparative Examples 1 to 6 shown in Table 1 were prepared by the following production methods. Regarding the obtained powder cosmetics, the property change from the powder state to the liquefied state (freshness), the change in temperature sensation (cold feeling or warm feeling), the uniformity of the coating film, the emollient feeling, the secondary adhesion-less effect, and the coloring. The properties / glossiness (including appearance, make-up effect, color change, etc.) and maintenance of powder state (stability over time) were evaluated. The results are also shown in Table 1.

Table 1
* 1: AEROSIL RX300 (specific surface area 210 ± 20 m ² / g, treated with hexamethyldisilazane) (manufactured by Aerosil Japan)
* 2: AEROSIL RX200 (specific surface area 140 ± 25 m ² / g, hexamethyldisilazane treatment) (manufactured by Aerosil Japan)
* 3: AEROSIL RX50 (specific surface area 35 ± 10 m ² / g, hexamethyldisilazane treatment) (manufactured by Aerosil Japan)
* 4: NEOSOLUE-AQULIO (manufactured by Nippon Fine Chemical Co., Ltd.)
* 5: UNIPLE RED LC323 R227 (manufactured by Sensient Technologies Japan)
* 6: FHS-3A TALC JA-46R (manufactured by Daito Kasei Kogyo Co., Ltd.)
* 7: SA-CLOISONNE CERISE FLAMBE (manufactured by Miyoshi Kasei Co., Ltd.)
* 8: KF-5002 (manufactured by Shin-Etsu Chemical Co., Ltd.)
* 9: FOMBLIN HC / 04 Average molecular weight 1,500 (manufactured by Ausimont)
* 10: FOMBLIN HC / 25 Average molecular weight 3,200 (manufactured by Ausimont)
* 11: FOMBLIN HC / R Average molecular weight 6,250 (manufactured by Ausimont)
* 12: KSG-016F (25% solid content dimethicone dispersion) (manufactured by Shin-Etsu Chemical Co., Ltd.)
* 13: DC2503 COSMETIC WAX (manufactured by Toray Dow Corning)
* 14: 20% solid content of KSG-51 (manufactured by Shin-Etsu Chemical Co., Ltd.)
* 15: FHS-15 AEROSIL R972 (manufactured by Daito Kasei Kogyo Co., Ltd.)

Table 2

(Production method)
A. (1) to (3) and (13) to (20) are mixed and pulverized.
B. (4) to (9) are mixed and dissolved, (10) to (12) are mixed, and A is mixed and stirred.
C. (21) to (29) were mixed and stirred, and mixed with B to prepare a powdered cosmetic.

(Evaluation method)
We asked 20 cosmetics evaluation panel to use the makeup powder cosmetics of the above examples and comparative examples on the lips, eyes and cheeks for 2 weeks, and the panels for the following evaluation items (a) to (f). Each person applied each sample to the lips and cheeks, scored according to the following absolute evaluation criteria, calculated the total score of all the panels, and judged according to the following floor criteria. Regarding (f), the sample was applied to the lips, around the eyes and cheeks, and 6 hours after the panel was allowed to live a normal life, the sample was pressed with a tissue to evaluate the color transfer. Regarding item (g), the state of filling a closed container and storing at room temperature for 2 weeks was evaluated.

<Evaluation items>
a) Change in properties from powder state to liquefaction state (freshness)
b) Changes in temperature sensation (cold or warm sensation)
c) Uniformity of coating film d) Color development / glossiness e) Emollient feeling f) Secondary adhesion-less effect g) Maintenance of powder state (stability over time)

<Absolute evaluation criteria>
(Score): (Evaluation)
4 points: Very good 3 points: Good 2 points: Somewhat bad 1 point: Bad <Judgment criteria>
(Judgment): (Total score)
◎: 65 points or more 〇: 50 points or more and 64 points or less △: 35 points or more and 49 points or less ×: 34 points or less

(Evaluation results)
As is clear from Tables 1 and 2, the make-up powder cosmetics of Examples 1 to 18 which are the products of the present invention have a property change (freshness) from a powder state to a liquefied state, and a change in temperature sensation. (Examples 1 to 17 are cold feeling, Example 18 is warm feeling), and while imparting uniformity of the coating film, it gives a feeling of emollient feeling, and is rich in secondary adhesion-less effect and color development / glossiness. The result was also excellent in maintaining the powder state (stability over time). On the other hand, Comparative Example 1 in which neither the component (D) nor the oil agent was blended was insufficient in terms of emollient feeling and secondary adhesion-less effect. Comparative Example 2 in which the component (D) was not blended and the material soluble in water and oil was blended was poor in all evaluations because it was difficult to maintain the powder state (stability over time). Comparative Examples 3 and 4 in which the component (D) was not blended and replaced with another oil agent had a low secondary adhesion-less effect, and the properties changed from the powder state to the liquefied state (freshness) and the temperature sensation changed (cold). (Feeling) and the uniformity of the coating film tended to decrease a little. Comparative Example 5 in which the component (A) was not blended was poor in the property change (freshness) from the powder state to the liquefied state. Comparative Example 6 in which the component (B) is not blended has a secondary adhesion-less effect, but it is difficult to maintain stability as a powder cosmetic, and a large amount of the components (D) and (E) and the component (B) are mixed. Due to the decrease in the adhesiveness of the powder and the lack of uniformity due to the absence of the powder, the color development and glossiness were reduced.

Example 19: Sunscreen powder cosmetic (ingredient) mass%
1. 1. Agar 2.0
2. Sodium chondroitin sulfate 0.1
3. 3. Glycerin 1.0
4.1, 3-butylene glycol 13.0
5. Remaining amount of purified water 6. UV absorber containing polysilicone-14 capsule powder * 16 10.0
7. Panthenol 0.3
8. Hydrophobicized silica * 1 2.0
9. Silicone-treated fine particle titanium oxide (15% treated, average particle diameter 35 nm) 7.0
10. Trifluoropropylcyclotetrasiloxane / Trifluoropropylcyclopentasiloxane * 8 0.8
11. (Trifluoropropyl dimethicone / trifluoropropyl divinyl dimethicone) Cross polymer (solid content) * 14 0.2
12. Astaxanthin 0.1
* 16: SILASOMA MF (S) (manufactured by Seiwa Kasei Co., Ltd.)

(Production method)
A. (1) to (5) are mixed and dissolved, (6) and (7) are added, cooled, and then frozen and pulverized to be pulverized.
B. (8) and (9) were mixed and dispersed with A, and the powder cosmetic was prepared by slowly mixing and stirring with the mixture of (10) to (12).

The obtained sunscreen powder cosmetic has a change in properties (freshness) from a powder state to a liquefied state, a high change in temperature sensation (cold feeling), uniformity of the coating film, emollient feeling, and no secondary adhesion. The effect and maintenance of the powder state (stability over time) were high, and the color was developed and maintained over time.

Claims (7)

The following components (A) to (E);
(A) Hydrophobicized silicon dioxide having a specific surface area of 25 m ² / g or more (B) One or more selected from (b-1) water and (b-2) polyhydric alcohol as an aqueous component (C) Colorant (D) A powdered cosmetic containing fluorine oil and liquefied by rubbing. The powdered cosmetic according to claim 1, further containing the component (E) a fluorine oil thickener. The powder cosmetic according to claim 1 or 2, further comprising (b-3) a water-soluble polymer in the component (B). The powdered cosmetic according to any one of claims 1 to 3, which contains 0.5 to 35.0% by mass of the component (D) and the component (E) in total. The powdered cosmetic according to any one of claims 1 to 4, which contains a sugar alcohol as the component (b-2). The powdered cosmetic according to any one of claims 1 to 5, which changes color by rubbing. The powdered cosmetic according to any one of claims 1 to 6, which is used as a make-up cosmetic.