KR102614289B1 - Solid powder cosmetics - Google Patents

Abstract

The present invention provides a solid powder cosmetic that has excellent transparency, no sticky feeling, excellent surface smoothness of the molded product, no shrinkage of the molded product, and excellent impact resistance. It is a solid powder cosmetic containing 4 to 30% by mass of component (A) fine metal oxide, component (B) amino-modified silicone treated powder, and component (C) silicone oil. Accordingly, it is possible to provide a solid powder cosmetic that has excellent transparency, no sticky feeling, excellent surface smoothness of the molded product, no shrinkage of the molded product, and excellent impact resistance.

Description

Solid powder cosmetics

The present invention relates to solid powder cosmetics.

Solid powder cosmetics are widely used in makeup cosmetics such as foundation, powder, eye color, cheek color, and eyebrow, as well as basic cosmetics such as body powder and whitening powder due to their portability and ease of use. Additionally, in recent years, technology using fine metal oxides has been examined to improve ultraviolet ray protection and to create a transparent finish without a cloudy feeling (see, for example, Patent Document 1).

Methods for producing solid powder cosmetics include a dry molding method in which powder and emulsion are mixed and then press molded, and a solvent is added to a cosmetic base made of powder and emulsion. The wet molding method of obtaining cosmetics by filling a container in a slurry form and then removing the solvent is well known. Since the solid powder cosmetics obtained by the wet molding method are filled in a fluid slurry state, they can be filled into containers of various shapes, and cosmetics with high aesthetics can be obtained. On the other hand, the wet forming method has been subject to various studies as fill moldability may be problematic. For example, a technology using a film-forming polymer to improve fill moldability (e.g., see Patent Document 2), or a technology using spherical polyolefin resin powder and a non-volatile emulsion (e.g., patent document 2). (Refer to Document 3), etc. are known.

: Japanese Patent Laid-Open No. 2015-168642 : Japanese Patent Laid-Open No. 2001-72536 : Japanese Patent Laid-Open No. 2006-169207

However, when solid powder cosmetics are manufactured using the technology of Patent Document 1 in order to obtain cosmetics with excellent UV protection and transparency, a stiff feeling occurs due to the strength of the cohesive force of the fine metal oxide particles, and the surface of the molded product is also smooth. I couldn't.

Additionally, when solid powder cosmetics containing fine metal oxides are manufactured by wet molding, the solvent removal efficiency is reduced due to the size of the surface area, and the molded product sometimes shrinks. Even when the technology in Patent Document 1 is used, the stiff feeling caused by the fine metal oxide and the shrinkage of the molded product are not suppressed, and the polymer forms a film on the surface of the molded product, so satisfactory surface smoothness is not obtained. There was. Likewise, even when the technology of Patent Document 2 was used, there were cases where a stiff feeling due to fine metal oxides, shrinkage of the molded product was not suppressed, and impact resistance was also poor.

Therefore, the main purpose of the present invention is to provide a solid powder cosmetic that has excellent transparency, no sticky feeling, excellent surface smoothness of the molded product, no shrinkage of the molded product, and excellent impact resistance.

In view of this situation, the present inventor conducted intensive research and found that cosmetics containing fine metal oxides (suitably metal oxides with an average particle diameter of 0.01 to 0.1 μm) contain 4 to 30% by mass of silicone oil. By doing so, compared to the case of containing hydrocarbons or ester oil, etc., transparency is excellent and the surface of the molded product is excellent in smoothness, and the solvent removal efficiency during filling molding is improved to suppress shrinkage of the molded product after drying. I paid it. Additionally, the present inventor has clearly revealed that simply containing fine metal oxides and silicone oil in solid powder cosmetics is not sufficient to provide the impact resistance and lack of sticky feeling required for solid powder cosmetics.

Here, the present inventor has conducted extensive research and has found that the stiffness of fine metal oxides is reduced by containing amino-modified silicone treated powder having a cation group, and that the impact resistance is reduced by containing the above-mentioned specific amount of silicone oil. found something to improve. From this, the present inventor has found that by using (A) fine metal oxide, (B) amino-modified silicone treated powder, and (C) a specific amount of silicone oil, the molded product has excellent transparency, no sticky feeling, and excellent smoothness on the surface of the molded product. It was discovered that a solid powder cosmetic could be obtained without shrinkage of the molded product and with excellent impact resistance. Accordingly, the present inventor came to complete the present invention.

That is, the present invention includes the following components (A) to (C):

(A) Particulate metal oxide

(B) Amino-modified silicone treated powder

(C) Silicone oil 4-30% by mass

To provide a solid powder cosmetic containing.

The component (A) may be one or two or more types selected from titanium oxide and zinc oxide.

Additionally, the content ratio of the component (A) and the component (C) may be (C)/(A) = 0.6 to 15.

Additionally, as component (D), a partially crosslinked organopolysiloxane polymer may be contained.

Additionally, as component (E), (fluoride/hydroxide/oxidation)/(Mg/K/silicon) may be contained.

Additionally, as component (F), a metal oxide with a larger particle size than the component (A) may be contained.

Additionally, as component (G), 2 to 7% by mass of boron nitride may be contained.

Phenyl-modified silicone may be contained in the component (C).

The mass ratio of the component (C) in the entire emulsion may be component (C)/total blended emulsion = 0.3 to 1.0.

Additionally, the present invention provides the following components (A) to (C):

(A) Particulate metal oxide

(B) Amino-modified silicone treated powder

(C) Silicone oil 4-30% by mass

It is also possible to provide a solid powder cosmetic obtained by using as a cosmetic base, mixing the above (A) to (C) with a solvent to form a slurry, filling a container, and then removing the solvent.

The present invention provides a solid powder cosmetic that has excellent transparency, no sticky feeling, excellent surface smoothness of the molded product, no shrinkage of the molded product, and excellent impact resistance. Additionally, the effects described here are not necessarily limited, and any effect described in the present technology may be used.

Hereinafter, the present invention will be described in detail. In addition, the embodiment described below shows an example of a representative embodiment of the present technology, and the scope of the present invention is not construed narrowly accordingly. Additionally, in this specification, percentages are expressed by mass unless otherwise specified. In this specification, “~” means a range including the values before and after it.

<1. Solid powder cosmetics>

The present invention provides a solid powder cosmetic containing the following components (A) to (C): (A) particulate metal oxide, (B) amino-modified silicone treated powder, and (C) 4 to 30% by mass of silicone oil. will be. Conventional solid powder cosmetics can be easily transparent by containing metal oxides of fine particles with smaller particle diameters, but the fine particles tend to cause agglomeration and have poor impact resistance. However, by using at least the above (A) to (C) in combination, it is possible to provide a solid powder cosmetic with excellent transparency, no sticky feeling, excellent surface smoothness of the molded product, no shrinkage of the molded product, and excellent impact resistance.

In addition, by using at least the above-mentioned (A) to (C) in combination, in this respect, the present invention mixes the cosmetic base containing the above-mentioned components (A) to (C) with a solvent to form a slurry, and then fills the container. It is also possible to provide a solid powder cosmetic or a method for producing a solid powder cosmetic obtained by removing the solvent. According to the present invention, solid powder cosmetics can be obtained satisfactorily even by wet molding.

<1-1. Ingredient (A) particulate metal oxide>

The particulate metal oxide of component (A) used in the present invention is not particularly limited as long as it is a particulate metal oxide that can be used in cosmetics, and its particle shape (spherical, needle-shaped, plate-shaped, irregularly shaped) is not particularly limited. Any particle structure (porous, non-porous, etc.) can be used. Examples of the metal oxide include zinc oxide, titanium oxide, cerium oxide, zirconium oxide, and iron oxide, and these can be used one type or in combination of two or more types. Among these fine particle metal oxides, it is more preferable to use zinc oxide and titanium oxide one type or a combination of two or more types from the viewpoint of excellent UV protection ability and excellent coverage of pores, wrinkles, etc., and zinc oxide and/or titanium oxide It is more desirable.

These fine metal oxides may be surface-treated with aluminum oxide and/or hydroxide or silicon oxide and/or hydroxide. Or these metal oxides are one or two types of fluorine compounds, silicone compounds, metal soap, lecithin, hydrogenated lecithin, collagen, hydrocarbons, higher fatty acids, higher alcohols, esters, waxes, beeswax, surfactants, etc. Surface treatment may be performed using the above. Although there is no particular limitation, from the viewpoint of excellent smooth use, it is more preferable to use a product that has undergone surface treatment using a silicone compound in the present invention.

In the present invention, the “average particle diameter” is a value (median diameter D50) obtained by measurement using an image analysis device (LUZEX IIIU or its successor, LUZEX AP, manufactured by NIRECO Co., Ltd.) )am.

The metal oxide of component (A) used in the present invention is a fine particle metal oxide, and its average particle diameter (D50) is not particularly limited, but as an upper limit, it is preferably 0.15 μm or less, and more preferably 0.13 μm. or less, more preferably 0.10 μm or less, and the lower limit thereof is preferably 0.01 μm or more, and more preferably 0.015 μm or more. As the numerical range, it is suitably 0.01 to 0.1 μm, more preferably 0.01 to 0.15 μm, more preferably 0.01 to 0.10 μm, from the viewpoint of superior transparency, ultraviolet protection ability, and dispersibility, etc. , it is more preferable that it is 0.01 to 0.08 μm, and it is especially preferable that it is 0.02 to 0.04 μm. If the average particle diameter is less than 0.01 μm, the cohesive force is strong and a stiff feeling is strong, so a smooth feeling of use may not be obtained, and if the average particle diameter is larger than 0.15 μm, a satisfactory sense of transparency may not be obtained.

Commercially available products of component (A) include, for example, fine particle zinc oxide, such as FINEX-50 (manufactured by SAKAI CHEMICAL INDUSTRY CO., LTD.), XZ-100F (manufactured by Sakai Chemical Industry Co., Ltd.), ZnOX- 350 (product of SUMITOMO OSAKA CEMENT Co., Ltd.), zinc oxide FZO-50 (product of ISHIHARA SANGYO KAISHA, LTD.), fine particle zinc oxide MZ-500, MZ-300, MZ-200, MZ-150 (manufactured by TAYCA CORPORATION), fine particle titanium oxide, MT-700B, MT-500 series (e.g. SMT-500SAS, MT-500SA) (manufactured by Tayca Corporation), Examples include TTO-55(A) (manufactured by Ishihara Industrial Co., Ltd.), ST-605EC, ST-405EC (Titan Kogyo, Ltd.), and STR-100A (manufactured by Sakai Chemical Industry Co., Ltd.), but the ingredients ( A) is not limited to these, and may be manufactured by a known manufacturing method. Additionally, these can be used one type or in combination of two or more types.

[Content of component (A)]

The content of component (A) used in the present invention is not particularly limited, but from the viewpoint of having an ultraviolet ray protection ability and natural covering power against pores, wrinkles, etc., and providing better transparency without white cast, it is included in the total amount of cosmetics. , the lower limit is preferably 0.1 mass% or more, more preferably 1 mass% or more, and the upper limit is 20 mass% or less, more preferably 15 mass% or less, and the range is 0.1 to 20 mass%. It is preferable, it is more preferable that it is 1-15 mass %, and it is still more preferable that it is 5-15 mass %.

[Component (A) particulate zinc oxide and/or particulate titanium oxide in particulate oxide]

Among the component (A) particulate oxides, more preferably particulate zinc oxide and/or particulate titanium oxide, and other particulate metals may be included within the range that does not impair the effect of the present invention. From the viewpoint of transparency, ultraviolet ray protection ability and dispersibility, the average particle diameter (D50) of the fine particle zinc oxide is preferably 0.01 to 0.10 μm (more preferably 0.02 to 0.04 μm), and the fine particle titanium oxide has an average particle diameter (D50) of 0.02 to 0.04 μm. ) 0.02∼0.04μm is preferable.

Additionally, the content of particulate titanium oxide and/or particulate zinc oxide in the total amount of component (A) particulate oxide is not particularly limited, and is preferably the main component, more preferably 60% by mass or more, further preferably 70% by mass. It is mass % or more, more preferably 80 mass % or more, further preferably 90 mass %, and even more preferably 95 mass % or more. It may be a particulate metal oxide substantially consisting only of particulate titanium oxide and/or particulate zinc oxide. The particulate titanium oxide and/or particulate zinc oxide may be subjected to surface treatment. In addition, in this specification, “substantially” means that other components may be included within a range that does not impair the effect of the present invention.

<1-2. Ingredient (B) amino-modified silicone treated powder>

The amino-modified silicone-treated powder of component (B) used in the present invention is one in which part or the entire surface of the powder is treated with amino-modified silicone, and its particle shape (spherical, needle-shaped, plate-shaped, irregular, etc.) is changed. Any one can be used.

The "amino-modified silicone" used in the amino-modified silicone-treated powder of component (B) used in the present invention is preferably a silicone compound having an amino group or an ammonium group, and its properties (liquid phase, solid phase, etc.) and crosslinked structure Any one can be used regardless of the presence or absence of . Among the amino-modified silicones, it is preferable to use amino-modified silicones that do not have a cross-linked structure and/or amino-modified silicones that have a cross-linked structure. Among these, although there is no particular limitation, it is particularly preferable to use amino-modified silicone having a crosslinked structure from the viewpoint of superior impact resistance, etc.

[Amino-modified silicone without cross-linked structure]

The amino-modified silicone without a crosslinked structure used in the present invention is not particularly limited, but examples include those represented by the following general formula (1).

[In formula (1), R represents a hydroxyl group, a hydrogen atom or R ^a , R ^a represents a substituted or unsubstituted monovalent hydrocarbon group having 1 ^to 20 carbon atoms, and ₂ ) _n NH ₂ -OR represents ^a or a hydroxyl group, and Q represents a divalent hydrocarbon group having 1 to 8 carbon atoms. n represents a number from 1 to 5. p and q represent a number whose sum is preferably between 2 and less than 2000, more preferably between 20 and less than 2000, and more preferably between 30 and less than 1000, in terms of number average.]

The amino equivalent weight of the amino-modified silicone is preferably 200 g/mol to 30,000 g/mol, more preferably 500 g/mol to 10,000 g/mol, and even more preferably 600 g/mol to 5,000 g/mol.

Here, amino equivalent means the mass of the siloxane skeleton per amino group or ammonium group. The notation unit, g/mol, is a value converted to per 1 mol of amino or ammonium group. Therefore, the smaller the amino equivalent value, the higher the proportion of amino or ammonium groups in the molecule.

The amino-modified silicone is not particularly limited, but from the viewpoint that the powder is uniformly coated and the uniformity of the makeup film is obtained, it is better to have a kinematic viscosity in the range of 100 to 3000 mm ² /s (25°C). desirable. This may be used in the form of an emulsion. Emulsions of this amino-modified silicone are, for example, mechanically mixed at high shear between amino-modified silicone and a solvent, emulsified amino-modified silicone with water and an emulsifier, or a combination of these, or emulsified. It can also be prepared by polymerization.

In addition, specific examples of suitable commercial products (kinematic viscosity (25°C)) of the amino-modified silicone include, for example, SF8451C (Tore Dow Corning Silicone Co., Ltd., kinematic viscosity 600 mm ² /s, amino equivalent 1700 g/mol), SF8452C (Tore · Product manufactured by Dow Corning Silicone, kinematic viscosity 700 mm ² /s, amino equivalent 6400 g/mol), SF8457C (manufactured by Dow Corning Silicon Co., Ltd., kinematic viscosity 1200 mm ² /s, amino equivalent 1800 g/mol), KF8003 (Shin-Etsu Chemical Co., Ltd.) Shin-Etsu Chemical Co., Ltd. product, kinematic viscosity 1850 mm ² /s, amino equivalent weight 2000 g/mol), KF8004 (Shin-Etsu Chemical Co., Ltd. product, kinematic viscosity 800 mm ² /s, amino equivalent weight 1500 g/mol), KF867S ( Shin-Etsu Chemical Co. ^, Ltd. product, kinematic viscosity 1300 mm ² /s, amino equivalent weight 1700 g/mol), ), amino-modified silicone oil, SM8704C (manufactured by Torre Dow Corning Silicone Co., amino equivalent 1800 g/mol), etc., but is not limited to these and may be manufactured by a known production method. One or two or more types of these can be used.

[Amino-modified silicone with cross-linked structure]

The amino-modified silicone having a crosslinked structure used in the present invention is not particularly limited, but for example, a fine three-dimensional silicone obtained by condensation reaction of the surface coating agent (a) below and the surface coating agent (b) below. and polymers having a crosslinked structure (hereinafter also referred to as “silicon fine crosslinked products”). In addition, the surface coating treatment agent (a) and the surface coating treatment agent (b) below can each be manufactured by a known production method, and commercial products can also be used.

Surface coating agent (a): Both terminal reactive diorganopolysiloxane represented by the following general formula (2)

R ¹ R ² ₂ SiO—(R ² ₂ SiO) _L —SiR ¹ R ² ₂ … … (2)

(In formula (2), each R ¹ represents a hydroxyl group, each R ² independently represents a hydrocarbon group having 1 to 20 carbon atoms, and L represents any integer from 3 to 10,000.)

Surface coating agent (b): Amino group-containing silane compound represented by the following general formula (3):

R ³ R ⁴ _m SiX _(3—m) … … (3)

(In formula (3), R ³ represents a hydrocarbon group having at least one amino group and having 1 to 20 carbon atoms, R ⁴ represents an alkyl group having 1 to 4 carbon atoms, and represents, and m is 0 or 1).

The surface coating agent (a) used in the present invention is a reactive diorganopolysiloxane at both ends, which is a hydroxysilyl group-modified silicone at both ends represented by the following general formula (2).

R ¹ R ² ₂ SiO—(R ² ₂ SiO) _L —SiR ¹ R ² ₂ … … (2)

(In formula (2), each R ¹ represents a hydroxyl group, each R ² independently represents a hydrocarbon group having 1 to 20 carbon atoms, and L represents any integer from 3 to 10,000.)

There is no particular limitation on the form of (a), but in the present invention, use in the form of a water suspension or water emulsion improves the feel of component (B), etc. desirable. The method of preparing the water emulsion of (a) above may be a commonly known method, such as emulsion polymerization using low molecular weight cyclic siloxane as a starting material, or emulsifying oil-like reactive diorganopolysiloxane at both ends. Methods, etc. are exemplified.

The surface coating agent (b) used in the present invention is an amino group-containing silane compound and is represented by the following general formula (3).

R ³ R ⁴ _m SiX _(3—m) … … (3)

(In formula (3), R ³ represents a hydrocarbon group having at least one amino group and having 1 to 20 carbon atoms, R ⁴ represents an alkyl group having 1 to 4 carbon atoms, and represents, and m is 0 or 1).

Preferred examples of the surface coating agent (b) are not particularly limited, but examples include N-(2-aminoethyl)-3-aminopropyltriethoxysilane, 3-aminopropyltriethoxysilane, and 3-aminopropyltriethoxysilane. Examples include propyltrimethoxysilane. The amino group-containing trialkoxy (carbon number 1-4) silane where m = 0 is suitable. The number of carbon atoms of the hydrocarbon of R ³ is preferably 1 to 10. Commercially available products of (b) include, for example, aminopropyltriethoxysilane (KBE-903: manufactured by Shin-Etsu Chemical Co., Ltd.), but the present invention is not limited to this and can be manufactured by a known production method. You may do so.

[Silicone fine cross-linked product]

The silicone micro-crosslinked product is not particularly limited, but from the viewpoint of excellent feeling of use, the mass ratio of the surface coating treatment agent (a) and (b) used is (surface coating treatment agent (a)) : (surface coating treatment agent ( b)) = 100:0.1∼100:35 is preferable.

Additionally, it is preferable that the silicone micro-crosslinked product is a polymer that does not have rubber elasticity (i.e., rubber hardness). A polymer that does not have rubber hardness means that the measured value of the measurement method (soft rubber hardness measurement) using the durometer type AO specified in ISO7619-1 is less than 10, more preferably less than 5.

In addition, the rheological properties of the silicone micro-crosslinked product are not particularly limited, but because it has excellent adhesion to the skin, the complex elastic modulus in dynamic viscoelasticity measurement (25°C, strain 17%, shear frequency 4 Hz) It is preferable that the loss coefficient tanδ (loss modulus G"/storage modulus G') is 1.0-2.5. More preferably, the complex modulus is 10,000-100,000 Pa and the loss coefficient tanδ is 1.0-2.0. .

The rheological properties of the silicone micro-crosslinked product can be measured as follows.

Dynamic viscoelasticity measurement device: Rheosol-G3000 (UBM company product)

Measuring tool: Parallel plate with a diameter of 20 mm

Measurement frequency: 4Hz

Measurement temperature: 25±1.0℃

Setting of measurement strain: Set the strain rate to 17% and perform measurement in automatic measurement mode.

Measurement sample thickness (gap): 1.0mm

Here, the shear frequency is set to 4 Hz because it is within the range of the general physical operating speed for humans and is close to the speed when applying cosmetics to the skin.

[Powder that can be surface coated in component (B)]

In the component (B) used in the present invention, the "powder" that can be surface coated with the amino-modified silicone is not particularly limited as long as it is a powder used in ordinary cosmetics other than component (A), for example. Examples include inorganic powder, organic powder, metal soap powder, bright powder, pigment powder, and composite powders thereof, and can be used one type or in combination of two or more types as needed. Additionally, any particle shape (spherical, needle-shaped, plate-shaped, irregular, etc.) or particle structure (porous, non-porous, etc.) can be used.

The inorganic powder is not particularly limited, but examples include titanium oxide, zirconium oxide, zinc oxide, cerium oxide, magnesium oxide, barium sulfate, calcium sulfate, magnesium sulfate, calcium carbonate, magnesium carbonate, iron oxide, carbon black, and chromium oxide. , chromium hydroxide, royal blue, ultramarine blue, bengalla, talc, mica, kaolin, sericite, muscovite, synthetic mica, phlogopite, rhytite, biotite, lithia mica, silicic acid, silicic anhydride, aluminum silicate, magnesium silicate, magnesium aluminum silicate, Calcium silicate, barium silicate, strontium silicate, metal tungstate salt, hydroxyapatite, vermiculite, hygilite, bentonite, montmorillonite, hectorite, zeolite, ceramics powder, dibasic calcium phosphate, alumina, aluminum hydroxide, boron nitride, silica. , titanium oxide-coated mica, titanium oxide-coated tin oxide-coated synthetic phlogop mica, zinc oxide-coated mica, barium sulfate-coated mica, titanium oxide-coated glass pearl glass powder, etc., and if necessary, one type or two or more types can be combined. You can use it.

The organic powder is not particularly limited, but examples include polyamide powder, polyester powder, polyethylene powder, polypropylene powder, polystyrene powder, polyurethane, benzoguanamine powder, polymethylbenzoguanamine powder, and tetrafluorocarbon powder. Ethylene powder, polymethyl methacrylate powder, cellulose powder, silk powder, nylon powder (12 nylon, 6 nylon, etc.), silicone powder, polyethylene terephthalate powder, styrene/acrylic acid copolymer powder, divinylbenzene/styrene copolymer powder , vinyl resin powder, urea resin powder, phenolic resin powder, fluorine resin powder, silicon resin powder, acrylic resin powder, melamine resin powder, epoxy resin powder, polycarbonate resin powder, microcrystalline fiber powder, starch, lau. Roylysine and the like can be mentioned, and as needed, one type or two or more types can be used in combination.

Among these, inorganic powder is suitable, and the inorganic powder is not particularly limited, but examples include talc, mica, sericite, muscovite, synthetic mica, phlogopite, titanium oxide coated mica, titanium oxide tin oxide coated synthetic mica, and It is more preferable to select one or two or more types of inorganic powder selected from titanium oxide-coated glass powder, etc., because an amino-modified silicone-treated powder with a higher cosmetic effect can be obtained. Additionally, it is particularly preferable to select one or two or more types selected from talc, mica, sericite, muscovite, synthetic mica, and phlogopite.

The average particle diameter (D50) of the "powder" that can be surface coated is not particularly limited, but is preferably 3 to 200 μm, more preferably 3 to 100 μm, and 5 to 50 μm from the viewpoint of cosmetic effect. This is particularly desirable. Additionally, it is particularly preferable that it is plate-shaped from the viewpoint of smooth use and superior filling moldability.

[Coating method of amino-modified silicone]

In the component (B) used in the present invention, the method for coating the surface of these powders with amino-modified silicone is not particularly limited, and examples include a dry coating method in which amino-modified silicone and powder are directly mixed and coated; Amino-modified silicone is dissolved or dispersed in an organic solvent (e.g., one or two or more selected from ethanol, isopropyl alcohol, n-hexane, etc.), and powder is added to the solution or dispersion and mixed, then A wet coating method in which the solvent is removed, heated, and pulverized by drying, etc.; A mechanochemical method, etc. may be mentioned. It is also possible to combine them appropriately.

In addition, for component (B) used in the present invention, the method of surface coating these powders with amino-modified silicone is not particularly limited, but may include surface coating in the presence of the powder, for example, by an in-situ method. A method can be used in which the silicon fine cross-linked product of the treatment agent (a) and the surface coating treatment agent (b) is deposited on the surface of the powder particles and then heated to fix the silicon fine cross-linked product on the surface of the particles. By this method, the uniformity of coating on the surface of the powder particle is increased, and a surface-coated powder with a better and lighter feel and better adhesion to the skin can be obtained.

The powder surface of component (B) obtained in this way is coated with amino-modified silicone, and the amount of coating is not particularly limited. Since it has a smoother, lighter texture and moist feeling, and has excellent adhesion to the skin, the mass ratio of powder that can be coated on the surface and amino-modified silicone in component (B) is (powder that can be coated on the surface) : (Amino-modified silicone) = 99.99:0.01 to 70:30 is preferable, and 99.9:0.1 to 90:10 is particularly preferable.

Examples of commercially available amino-modified silicone-treated powders of component (B) used in the present invention include, for example, MICA Y-2300WA3 (YAMAGUCHI MICA CO., LTD.), EX-15WA3 (YAMAGUCHI MICA CO., LTD.) Kasa product), SE-S-100S (treated powder is sericite) (Miyoshi Kasei, Inc. product), SE-TA-13R, SE-TA-46R (treated powder is talc) ( Miyoshi Kasei Co., Ltd. product), MiyoSYNFine-SE (treated powder is synthetic phlogopite Co., Ltd.) (Miyoshi Kasei Co., Ltd. product), SE-MA-23 (treated powder is mica) (Miyoshi Kasei Co., Ltd. product), etc. It is not limited to this, and may be manufactured by a known manufacturing method.

Component (B) of the present invention can also be obtained by treating it simultaneously or separately with other treatment agents (e.g., fatty acids, metallic soaps, fluorine compounds, etc.) to the extent that they do not interfere with the effects of the present invention. Although there is no particular limitation, it is particularly preferable that the outermost layer of component (B) of the present invention is amino-modified silicone because the effect of the present invention can be exhibited more significantly.

[Content of component (B)]

The content of component (B) in the present invention is not particularly limited, but is preferably set as the lower limit in the total amount of cosmetics from the viewpoint of excellent lightness of application, smoothness of the surface of the molded product, and excellent suppression of sticky feeling. is 1% by mass or more, more preferably 3% by mass or more, and even more preferably 5% by mass or more. Furthermore, the upper limit is preferably 90% by mass or less, more preferably 60% by mass or less, and even more preferably 40% by mass or less from the viewpoint of cost. As for the numerical range, it is preferably 1 to 90% by mass, more preferably 5 to 90% by mass, more preferably 5 to 60% by mass, and especially preferably 5 to 40% by mass of the total amount of cosmetics. , As a result, lightness of application, smoothness of the surface of the molded product, suppression of stiff feeling, and impact resistance are improved.

<Ingredient (C) Silicone Oil>

The silicone oil of component (C) used in the present invention can be used without particular limitation as long as it is commonly used in cosmetics.

As silicone oil, dimethylpolysiloxane, phenyl-modified silicone (e.g., methylphenylpolysiloxane, etc.), alkyl-modified silicone, cyclic siloxane (e.g., octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, etc.), methyltrimethicone, and polyether. Modified methylpolysiloxane, oleyl-modified methylpolysiloxane, and polyvinylpyrrolidone-modified methylpolysiloxane may be mentioned, but are not limited to these. One or two or more types of these may be appropriately selected and used.

Among the silicone oils of component (C), it is preferable to use dimethylpolysiloxane and/or phenyl-modified silicone in terms of smoothness of the surface of the molded product, excellent solvent removal efficiency, and excellent shrinkage of the molded product.

Commercially available phenyl-modified silicone products include, for example, triphenyldimethylvinyldisiloxane (e.g., commercially available product: SILSHINE VP), diphenylsiloxyphenyltrimethicone (e.g., commercially available product: KF-56 (methylphenylpolysiloxane), etc.), Trimethylpentaphenyltrisiloxane, diphenyldimethicone (for example, commercially available product: Silicone KF-54 (methylphenylpolysiloxane), etc.), and trimethylsiloxyphenyldimethicone (for example, commercially available product: BELSIL PDM1000, etc.). There is no limitation, and it may be manufactured by a known manufacturing method. One or two or more types of these can be used.

In addition, among these, when dimethylpolysiloxane and/or methylphenylpolysiloxane (suitably the diphenylsiloxyphenyltrimethicone, etc. described above) is used, the surface of the molded product is excellent in smoothness and solvent removal efficiency, and the molded product is excellent in no shrinkage. etc., it is more preferable.

The average molecular weight of the silicone oil of component (C) used in the present invention is not particularly limited, but is preferably 500 to 15,000 from the viewpoint of smooth use, excellent solvent removal efficiency, and excellent shrinkage of molded products. The properties are not particularly limited, but are preferably liquid at 25°C due to the smooth feel of use, excellent solvent removal efficiency, and excellent shrinkage of the molded product. Such commercially available products include KF-96A-6CS (manufactured by Shin-Etsu Chemical Co., Ltd.), KF-96-10CS (manufactured by Shin-Etsu Chemical Co., Ltd.), SH200C FLUID 6CS (manufactured by Toray Industries, Inc.), and KF-56 (manufactured by Toray Industries, Inc.). Examples include, but are not limited to, KF-54 (manufactured by Shin-Etsu Chemical Co., Ltd.) and KF-54 (manufactured by Shin-Etsu Chemical Co., Ltd.), and may be manufactured by known manufacturing methods. One or two or more types of these can be used.

[Ingredient (C) content and usage ratio]

The content of component (C) used in the present invention is not particularly limited as long as it is an amount that exhibits the effect of the present invention, but is preferably 4 to 30% by mass, more preferably 4 to 20% by mass, and 4 It is especially preferable that it is -15 mass%. If the content of component (C) is less than 4% by mass, it becomes difficult to obtain a satisfactory and smooth feeling of use, excellent solvent removal efficiency, and no shrinkage of the molded product, and if it is more than 30% by mass, the impact resistance tends to deteriorate, which is not desirable. .

Additionally, the mass ratio of component (C)/total blended oil is preferably 0.3 to 1.0, more preferably 0.6 to 1.0, and particularly preferably 0.65 to 0.9. When this ratio is high, shrinkage can be suppressed while providing greater transparency and improving impact resistance.

The content ratio of component (A) and component (C) used in the present invention is not particularly limited, but from the viewpoint of excellent solvent removal efficiency and excellent non-shrinkage of molded products, the lower limit is preferably ( C)/(A) = 0.6 or more, the upper limit is (C)/(A) = 20 or less, and the numerical range is preferably (C)/(A) = 0.6 to 15, and 0.6 to 10 It is more preferable, and it is especially preferable that it is 0.6-5.

In the present invention, it is preferable that component (C) contains dimethylpolysiloxane and/or phenyl-modified silicone because it can improve gloss and provide higher transparency while suppressing shrinkage.

The (C) silicone oil preferably contains at least dimethylpolysiloxane and/or phenyl-modified silicone, preferably 50% by mass or more, more preferably 80% by mass or more, more preferably 90% by mass or more. More preferably 95% by mass or more, more preferably 98% by mass or more, the silicone substantially consists of dimethylpolysiloxane and/or phenyl-modified silicone (more preferably the diphenylsiloxyphenyltrimethicone, etc. described above). Even if it’s Yu, it’s okay. In addition, in this specification, “substantially” means that other components may be included within a range that does not impair the effect of the present invention.

The content of dimethylpolysiloxane in component (C) is preferably 0.1 mass% or more, more preferably 1 mass% or more, and still more preferably 2 mass% or more as the lower limit, and preferably 15 mass% or more. It is % by mass or less, more preferably 10% by mass or less.

Moreover, the content of phenyl modified silicone in component (C) is the lower limit, preferably 5% by mass or more, more preferably 10% by mass or more, further preferably 30% by mass or more, more preferably 40% by mass. More preferably, it is 45 mass% or more, and the upper limit is preferably 95 mass% or less, more preferably 90 mass% or less, and even more preferably 85 mass% or less. As the numerical range, 40 to 90 mass% is more preferable. Accordingly, it is possible to improve gloss and provide higher transparency while suppressing shrinkage.

<1-3. Component (D) Partially cross-linked organopolysiloxane polymer>

In the present invention, a partially crosslinked organopolysiloxane polymer can be further used as component (D). Specific examples of component (D), as indicated in Japanese cosmetic labeling names, include partially crosslinked methylpolysiloxane such as (dimethicone/vinyldimethicone) crosspolymer; Partially crosslinked methylphenylpolysiloxane such as (dimethicone/phenyldimethicone) crosspolymer, etc. can be mentioned. Additionally, examples of polymers containing a polyoxyalkylene group in the molecule include partially crosslinked polyether-modified silicones such as (dimethicone/(PEG-10/15)) crosspolymer. Also, examples of polymers containing a long-chain alkyl group in the molecule include partially crosslinked alkyl-modified silicones such as (vinyl dimethicone/lauryl dimethicone) crosspolymer. Polymers containing a polyoxyalkylene group and a long-chain alkyl group in the molecule include, for example, partially crosslinked alkyl/polyether comodified silicone such as (PEG-15/lauryl dimethicone) crosspolymer, (lauryl dimethicone/poly) Glycerin-3) partially crosslinked polyglycerin-modified silicone such as crosspolymer, etc. Examples of polymers containing a halogenated hydrocarbon group in the molecule include partially crosslinked fluorine-modified silicones such as (trifluoropropyldimethicone/trifluoropropyldivinyldimethicone) crosspolymer. Component (D) is not particularly limited to these specific examples, and may be manufactured by a known manufacturing method. These can be used one type or in combination of two or more types.

There is no particular limitation, but among these, partially cross-linked methylpolysiloxane such as (dimethicone/vinyl dimethicone) crosspolymer; Partially crosslinked methylphenylpolysiloxane such as (dimethicone/phenyldimethicone) crosspolymer; Partially cross-linked polyether-modified silicone such as (dimethicone/(PEG-10/15)) crosspolymer; Partially crosslinked alkyl/polyether comodified silicones such as (PEG-15/lauryl dimethicone) crosspolymer; Partially crosslinked polyglycerol-modified silicone such as (lauryl dimethicone/polyglycerin-3) crosspolymer is more preferable from the viewpoint of smooth use and improved impact resistance. These can be used one type or in combination of two or more types.

Additionally, it is preferable to use a partially crosslinked organopolysiloxane polymer that contains at least partially crosslinked methylpolysiloxane, such as (dimethicone/vinyl dimethicone) crosspolymer.

It is more preferable to use or contain component (D) in a state swollen with an emulsion such as silicone oil of component (C) because it becomes easier to disperse uniformly and the stability of the formulation becomes excellent. Component (D) is often commercially available in the form of a mixture with a solvent such as the above-mentioned emulsion, and such commercial products can be used in the present invention.

Commercially available products of component (D) include, for example, KSG-15 (5% solid content) as a mixture of partially crosslinked methylpolysiloxane and cyclic silicone; KSG-16 (solid content 20-30%) as a mixture of partially cross-linked methylpolysiloxane and dimethylpolysiloxane; KSG-18 (solid content 10-20%) as a mixture of partially cross-linked methylphenylpolysiloxane and phenyltrimethicone, KSG-210 (solid content 20-30%) as a mixture of partially cross-linked polyether-modified silicone and dimethylpolysiloxane; A mixture of partially crosslinked alkyl-modified silicone and emulsion, KSG-41 (solid content 25 to 35%), KSG-42 (solid content 20 to 30%), KSG-43 (solid content 25 to 35%), and KSG-44 (solid content) 25 to 35%), a mixture of partially crosslinked alkyl-polyether comodified silicone and emulsion, KSG-310 (solid content 25 to 35%), KSG-320 (solid content 20 to 30%), KSG-330 (solid content 15%) to 25%) and KSG-340 (solid content 25 to 35%) (above, manufactured by Shin-Etsu Chemical Co., Ltd.). In addition, partially crosslinked fluorine-modified silicone is used as a mixture with cyclic fluorine-containing silicone, such as cyclic organopolysiloxane containing a fluoroalkyl group, for example, KSG-51 (solid content 15 to 25%: manufactured by Shin-Etsu Chemical Co., Ltd.). I can hear it. The commercially available product of component (D) is not limited to this, and may be manufactured by a known manufacturing method. Additionally, these can be used one type or in combination of two or more types.

Component (D) can be used in the cosmetic of the present invention in one or two or more types as needed, and its content is not particularly limited, but from the viewpoint of not having a sticky feeling and having excellent smoothness of the surface of the molded product, the component (D) (D) is preferably 0.05 to 5% by mass, more preferably 0.3 to 3% by mass, in the total amount of cosmetics.

In addition, in component (D), partially crosslinked methylpolysiloxane such as (dimethicone/vinyl dimethicone) crosspolymer is preferably 50% by mass or more, more preferably 80% by mass or more, and still more preferably 90% by mass. methylpolysiloxane and phenyl-modified silicone (more preferably the (dimethicone/vinyldimethicone) crosspolymer described above, etc. ) may be a partially crosslinked organopolysiloxane polymer composed of ). In addition, in this specification, “substantially” means that other components may be included within a range that does not impair the effect of the present invention.

<1-4. Ingredient (E) (fluoride/hydroxide/oxidation)/(Mg/K/silicon)>

In the present invention, as component (E), (fluoride/hydroxide/oxidation)/(Mg/K/silicon) can be further used. The (fluoride/hydroxide/oxidation)/(Mg/K/silicon) of component (E) can be anything that is commonly used in cosmetics, and its particle shape (spherical, needle-shaped, irregular, etc.) and particle diameter (haze-shaped) , fine particles, pigment grade, etc.), particle structure (porous, non-porous, etc.), etc., can be used. Although it is not particularly limited, it is more preferable to have a plate shape from the viewpoint of obtaining better transparency.

The average particle diameter (D50) of component (E) is not particularly limited, but is preferably 1 to 20 μm, more preferably 3 to 18 μm, from the viewpoint of light spreadability on the skin and high transparency. , more preferably 3 to 15 μm, more preferably 5 to 15 μm, and especially preferably 5 to 14 μm.

Commercially available products of component (E) include, for example, soft sericite T-6 (average particle size: 5 to 7 μm), soft sericite SH (average particle size: 5 to 7 μm) (all manufactured by Dainihonkasei Co., Ltd.) product), Micro Mica MK-200K (average particle diameter: 5.8 to 8.2 μm), Micro Mica MK-300K (average particle diameter: 11.6 to 13.1 μm) (all from Katakura & Co-op Agri Co., Ltd. Corporation products), etc., but it is not limited to this and may be manufactured by a known manufacturing method. Additionally, these can be used one type or in combination of two or more types.

The content of component (E) in the present invention is not particularly limited, but from the viewpoint of obtaining better transparency and natural gloss, the lower limit is preferably 1% by mass or more in the total amount of cosmetics. It is preferably 3% by mass or more, more preferably 5% by mass or more, and the upper limit is preferably 90% by mass or less, more preferably 70% by mass or less, and even more preferably 60% by mass or less. The numerical range is preferably 1 to 90% by mass, more preferably 3 to 90% by mass, even more preferably 5 to 90% by mass, and especially preferably 5 to 50% by mass of the total amount of cosmetics. .

<1-5. Ingredient (F) Large particle size metal oxide>

In the present invention, as component (F), a metal oxide with a larger particle size than the component (A) can be further used. The “metal oxide having a larger particle size than the component (A)” is hereinafter defined as the “large particle size metal oxide.” The large particle size metal oxide is more preferably larger than the upper limit of the average particle diameter (D50) of component (A) (more preferably greater than 0.15 μm).

The average particle diameter (D50) of the large particle size metal oxide of component (F) is preferably greater than 0.15 μm, more preferably greater than 0.2 μm, and still more preferably greater than 0.3 μm as its lower limit, and as its upper limit, Preferably it is 10 μm or less, more preferably 5 μm or less, and even more preferably 4 μm or less. This range is more preferably greater than 0.15 μm and less than or equal to 5 μm. By controlling the component (F) metal oxide, high transparency, smoothness of the surface of the molded product, impact resistance, etc. can be improved.

In addition, the component (F) large particle size metal oxide has a common composition with the above <component (A) fine particle metal compound> in terms of particle shape other than the average particle diameter, particle structure, material, type of metal compound, and surface treatment method thereof. As for , the explanation thereof is appropriately omitted.

Among the large particle size metal oxides, there are no particular limitations, but from the viewpoint of excellent covering power against pores, wrinkles, and skin stains, titanium oxide, zinc oxide, cerium oxide, barium sulfate, etc., which have an average particle diameter different from that of component (A). It is more preferable to contain an inorganic pigment such as a white inorganic pigment or a colored inorganic pigment such as iron oxide. As a white inorganic pigment, it is more preferable to contain titanium oxide and/or zinc oxide, and as a colored inorganic pigment, it is more preferable to contain iron oxide. Additionally, these may be combined, and one or two or more types selected from titanium oxide, zinc oxide, and iron oxide are preferred. These large particle size metal oxides may be surface treated with aluminum oxide and/or hydroxide or silicon oxide and/or hydroxide. In addition, these powders may be used one type or a combination of two or more types, and may be surface treated using a fluorine compound, silicone emulsion, metal soap, surfactant, oil, hydrocarbon, etc. by a known method.

Commercially available products of component (F) include, for example, MP-18, MP-701, MP-1133 (Table 1, No. 2 in Examples described later), MP-40, MP-100, etc., or their composite powders (Teika Co., Ltd.; MKR-1 (product of Sakai Chemicals Ltd.); SYMPHOLIGHT series (product of Nikki Shokubai Kasei Co., Ltd. (JGC Catalysts and Chemicals Ltd.)); RONAELAIR BLANCSEALER (product of MERCK PERFORMANCE MATERIALS Ltd.) ); XZ-300F, XZ-1000F, : TAROX R-516P, TAROX YP1200P, TAROX BL-100P, etc. or their composite powders); FESOIE series (manufactured by Titan Industry Co., Ltd.) (FS-300 (No. 6 of Example 18 described later)); SUN PURO series (C33) -8001 (No. 9 of Example 16, No. 5 of Example 18, and No. 7 of Example 24 described later), C33-9001 (No. 10 of Example 16, No. 24 of Example 24 described later). 8), C33-7001 (No. 11 of Example 16, No. 7 of Example 18, and No. 9 of Example 24 described later) (manufactured by Sun Chemical); UNIPURE series (manufactured by SENSIENT), etc. In addition, component (F) may be manufactured by a known manufacturing method.

The content of component (F) in the present invention is not particularly limited, but from the viewpoint of obtaining better transparency and natural gloss, the upper limit is preferably 20% by mass or less in the total amount of cosmetics. Preferably it is 15 mass% or less, more preferably 10 mass% or less. As for the numerical range, it is preferable that it is 1 to 20 mass%, and it is more preferable that it is 2 to 10 mass%.

<1-6. Boron nitride of component (G)>

The boron nitride of component (G) in the present invention is not particularly limited in shape, size, etc., but is preferably plate-shaped, and the average particle diameter (D50) of the size is preferably 3 to 40 μm. And, more preferably, the average particle diameter (D50) is 5 to 40 μm, more preferably 6 to 36 μm. Additionally, the boron nitride of component (G) may be surface treated by a known method, except for the amino-modified silicone-treated boron nitride of component (B).

Commercially available products of component (G) include, for example, SHP-3, SHP-5 (No. 4 of Example 17), SHP-6 (No. 2 of Example 18), SHP-9, SHP-100, etc. SHP series (product of MIZUSHIMA FERROALLOY CO., LTD.); CCS102 BORON NITRIDE POWDER (No. 5 of Example 16) (Momentive Performance Materials Co., Ltd.), etc. are mentioned, but it is not limited to this and may be manufactured by a known manufacturing method. Additionally, these can be used one type or in combination of two or more types.

The content of component (G) in the present invention is not particularly limited, but from the viewpoint of better transparency and smooth feeling of use, the lower limit is preferably 0.1% by mass or more in the total amount of cosmetics, and more preferably 0.1% by mass or more. It is 1 mass% or more, and the upper limit is preferably 10 mass% or less, more preferably 8 mass% or less, further preferably 7 mass% or less, and even more preferably 6 mass% or less. As for the numerical range, it is preferably 0.1 to 7% by mass, more preferably 1 to 6.5% by mass, and especially preferably 2 to 6% by mass of the total amount of cosmetics. Within this range, it becomes more difficult for unnatural hiding properties to occur, and transparency can be maintained more preferably.

<1-7. Random components>

In addition to the above-mentioned components (A) to (G), the solid powder cosmetic of the present invention may contain optional components as appropriate in a quantitative and qualitative range that does not impair the effect of the present invention depending on the purpose. As optional components, specifically, powders other than the components (A), (B), (E), (F), and (G), emulsions other than the components (C) and (D), surfactants, and ultraviolet absorbers. , moisturizers, anti-fade agents, antioxidants, cosmetic ingredients, preservatives, water-soluble polymers, metallic soaps, excipients, cosmetic ingredients, texture modifiers, and fragrances, and various ingredients selected from one or two or more of these can be used in the present invention. It can be appropriately contained in solid powder cosmetics. Additionally, the optional ingredients used in the present invention may be those normally used in solid powder cosmetics, if necessary.

Powders of the above optional components (i.e., powders other than components (A), (B), (E), (F), and (G) include particle shapes (spherical, needle-shaped, plate-shaped, irregular, etc.), particles It is not particularly limited by diameter (haze shape, fine particles, pigment grade, etc.) or particle structure (porous, non-porous, etc.), and includes inorganic powders, organic powders, composite powders, etc. Specifically, inorganic powders such as aluminum oxide, magnesium oxide, zirconium oxide, magnesium carbonate, calcium carbonate, talc, kaolin, silica, and silicon carbide; Organic powders such as magnesium stearate, zinc stearate, N-acylysine, and nylon; White inorganic pigments such as titanium oxide, zinc oxide, cerium oxide, and barium sulfate; Colored inorganic pigments such as iron oxide, carbon black, chromium oxide, chromium hydroxide, royal blue, ultramarine blue, and Bengala; Organic pigment powders such as Red No. 201, Red No. 202, Red No. 205, Red No. 226, Red No. 228, Orange No. 203, Orange No. 204, Blue No. 404, and Yellow No. 401; Organic pigment powders such as zirconium, barium, or aluminum lake such as Red No. 3, Red No. 104, Red No. 106, Orange No. 205, Yellow No. 4, Yellow No. 5, Green No. 3, and Blue No. 1; Alternatively, metal powders such as aluminum powder, gold powder, and silver powder may be added, and one or two or more types of these may be used.

In the present invention, solid powder cosmetics are made by adding various ingredients such as emulsions, water-soluble polymers, metallic soaps, excipients, cosmetic ingredients, and texture modifiers to a composition whose main ingredient is powder, and use it as a cosmetic base, using a dry molding method or a wet molding method. It refers to something that has been molded into a solid shape by a molding method, etc.

The content of the powder containing components (A), (B), (E), (F), and (G) in the solid powder cosmetic of the present invention is not particularly limited, but the effect of the present invention is more noticeable. Since it is exerted effectively, the lower limit is preferably 40% by mass or more, more preferably 50% by mass or more, and even more preferably 60% by mass or more in the total amount of cosmetics, and the upper limit is preferably 60% by mass or more. It is 99 mass% or less, more preferably 98 mass% or less. As for the numerical range, it is preferably 40 to 96% by mass, more preferably 65 to 96% by mass, and especially preferably 70 to 96% by mass of the total amount of cosmetics.

<1-8. Manufacturing method of solid powder cosmetics>

The method for producing the solid powder cosmetic of the present invention can be applied to a known method for producing a solid powder cosmetic. According to the present invention, by mixing at least the above-mentioned component (A) to the above-mentioned component (C), and more appropriately by mixing the above-mentioned various components, a solid powder cosmetic that is said to have no shrinkage of the molded product and excellent impact resistance, etc. can be obtained. Because of this, it is easy to obtain the advantage that work (eg, handling and adjustment) in the manufacturing process is easy.

The method for producing a solid cosmetic of the present invention preferably includes preparing a mixture by mixing a cosmetic base (for example, powder, emulsion, etc.) with a solvent and molding the mixture into a container or the like. In addition to the above-mentioned components (A) to (G), components that can be used in the production of solid powder cosmetics can be appropriately used as the cosmetic base material and solvent.

A suitable method for producing the solid powder cosmetic of the present invention is a compression molding method including mixing powder and emulsion.

Additionally, as a method for producing the solid powder cosmetic of the present invention, it is suitable to use a wet molding method, and more specifically, it is more suitable to use a wet molding method including mixing powder, emulsion, and solvent. For example, after previously preparing a cosmetic base containing powder and an emulsion, the cosmetic base and a solvent can be mixed to obtain the solid powder cosmetic of the present invention. The solid powder cosmetic of the present invention can be obtained by mixing a solvent and a cosmetic base (for example, powder and emulsion, etc.), and the powder or emulsion can be mixed with the solvent at the same time or separately. good night.

An example of a manufacturing method is shown below, but the present invention is not limited to this.

The method for producing the solid powder cosmetic of the present invention is not particularly limited, but includes, for example, (i) components (A), (B) and, if necessary, components (E), (F), and (G). A method of mixing powder and an emulsion containing component (C) and, if necessary, component (D), followed by pulverization and dry compression molding; In addition, (ii) powder containing components (A), (B) and, if necessary, component (E), an emulsion containing component (C) and, if necessary, component (D), and a solvent are mixed to form a slurry. and a wet molding method in which the solvent is removed and molded after filling molding, but the present invention is not particularly limited to these.

Among these, it is more preferable to manufacture using a wet molding method because the effect of the present invention is more significantly exhibited. The solvent (also referred to as solvent) in the wet molding method is preferably a volatile compound having a boiling point of 260°C or lower at normal pressure.

As a solvent (solvent) used when manufacturing the solid powder cosmetic of the present invention, specifically, water; or low boiling point alcohol (carbon number 1 to 4) such as ethyl alcohol, isopropyl alcohol, and n-butanol; low boiling point hydrocarbon oils such as isododecane, isohexadecane, and light liquid isoparaffin; linear or cyclic silicone oils with low boiling points, such as dimethylpolysiloxane, methyltrimethicone, octamethylcyclotetrasiloxane, and decamethylcyclopentasiloxane; Examples include low-boiling point fluorine compounds such as low-boiling point perfluoropolyether, and these are used alone or in a mixture of two or more types, but are not particularly limited to these.

Among these, from the viewpoint of excellent dispersibility in cosmetic bases, it is more preferable to use one type or a combination of two or more low-boiling point hydrocarbon oils such as isododecane, isohexadecane, and light liquid isoparaffin.

The mixing amount of the solvent in the wet molding method is arbitrarily selected to provide fluidity for filling the mixture before molding into a container or medium dish. However, from the viewpoint of easy solvent removal efficiency, 100 parts by mass of the cosmetic base ( It is more preferable to use 10 to 150 parts of solvent per unit (hereinafter also simply referred to as “parts”). In addition, the method of removing the solvent may be drying as is, or applying pressure after filling the slurry and removing the volatile solvent (solvent) through an absorber or discharge hole.

In addition, the total amount of the cosmetic base material includes at least the amount of powder and emulsion used in the present invention.

<1-9. Uses of the present invention, etc.>

The solid powder cosmetic of the present invention contains powder as a main ingredient, and its use is not particularly limited, but examples include makeup cosmetics such as foundation, powder, eye color, cheek color, and eyebrow; It can be applied to basic cosmetics such as body powder, whitening powder, and sunscreen powder. Among these, since the effect of the present invention is exhibited more significantly, it is suitably used in makeup cosmetics, and more preferably in foundations and powders. Additionally, since the solid powder cosmetic of the present invention can be applied to the skin, it can also be used as an external skin preparation or quasi-drug.

In another aspect of the present invention, a solid powder cosmetic using the component (A) particulate metal compound is characterized by using at least the component (B) amino-modified silicone treated powder and the component (C) silicone oil. To provide a method for manufacturing a solid powder cosmetic. It is preferable that the component (C) silicone oil is 4 to 30% by mass. The solid powder cosmetic obtained as a result has excellent transparency, no sticky feeling, excellent surface smoothness of the molded product, no shrinkage of the molded product, and excellent impact resistance.

In another aspect of the present invention, a solid powder cosmetic using the component (A) particulate metal compound is characterized by using at least the component (B) amino-modified silicone treated powder and the component (C) silicone oil. It is possible to provide a method of improving the quality of the solid powder cosmetic. It is preferable that the component (C) silicone oil is 4 to 30% by mass. Examples of the quality improvement method include reducing the stiff feeling, improving the smoothness of the surface of the molded product, reducing shrinkage of the molded product, and improving the impact resistance of the composition. In the present invention, it is particularly suitable to improve the four qualities of the solid powder cosmetic using the component (A) particulate metal compound: stiffness, smoothness of the surface of the molded product, shrinkage of the molded product, and impact resistance of the composition.

In addition, in order to obtain a more excellent solid powder cosmetic, it is preferable to use each component such as the component (D) to the component (G) described above.

In the method of the present invention, the configuration described in <1. Solid powder cosmetic> can be adopted, and the description of the configuration is the same as described in <1. Solid powder cosmetic> above.

Additionally, the quality improvement method of the present invention can also be employed as a quality improvement agent.

In another aspect of the present invention, a solid powder cosmetic using the component (A) particulate metal compound is characterized in that at least the component (B) amino-modified silicone treated powder and the component (C) silicone oil are used. A quality improvement agent for the solid powder cosmetic can be provided. The component (C) silicone oil is preferably 4 to 30% by mass.

In addition, as another aspect of the present invention, the component (B) and the component (C) can be used to prepare a formulation such as a quality improvement agent for solid powder cosmetics using the particulate metal compound of component (A). In addition, in order to improve the quality of solid powder cosmetics using the component (A) particulate metal compound, the component (B) amino-modified silicone treated powder and the component (C) silicone oil; A composition comprising the component (B) and the component (C); Alternatively, their use may be provided. It is preferable that the component (C) silicone oil is 4 to 30% by mass.

Additionally, this technology can also adopt the following configuration.

[1] The following components (A) to (C):

(A) Particulate metal oxide

(B) Amino-modified silicone treated powder

(C) Silicone oil 4-30% by mass

A solid powder cosmetic containing.

[2] The following components (A) to (C):

(A) Particulate metal oxide

(B) Amino-modified silicone treated powder

(C) A solid powder cosmetic or a method for producing a solid powder cosmetic obtained by using 4 to 30% by mass of silicone oil as a cosmetic base.

[3] A solid powder cosmetic using component (A) particulate metal compound, wherein component (B) amino-modified silicone-treated powder and component (C) silicone oil are used in an amount of at least 4 to 30% by mass. Manufacturing method of cosmetics.

[4] A solid powder cosmetic using a particulate metal compound as component (A), characterized in that at least 4 to 30% by mass of component (B) amino-modified silicone-treated powder and component (C) silicone oil are used. Quality improvement method or quality improvement agent for solid powder cosmetics. It is appropriate that the quality improvement is a reduction in the stiff feeling, an improvement in the smoothness of the surface of the molded product, a reduction in shrinkage of the molded product, and an improvement in the impact resistance of the composition.

[5] Component (A) Component (B) amino-modified silicone treated powder for producing a quality improvement agent for solid powder cosmetics using particulate metal compounds, and Component (C) use of 4 to 30% by mass of silicone oil, the component ( Use of a composition comprising B) and component (C).

[6] In any one of [1] to [5] above, the average particle diameter (D50) of the component (A) is preferably 0.01 μm or more and 0.15 μm or less.

[7] In any one of [1] to [6] above, it is preferable that the component (A) contains one or two or more types selected from titanium oxide and zinc oxide.

[8] In any one of the above [1] to [7], it is preferable that the content ratio of the component (A) and the component (C) is (C)/(A) = 0.6 to 15.

[9] In any one of the above [1] to [8], it is suitable to further contain a partially crosslinked organopolysiloxane polymer as component (D).

[10] In any one of the above [1] to [9], it is suitable to further contain (fluoride/hydroxide/oxidation)/(Mg/K/silicon) as component (E).

[11] In any one of the above [1] to [10], it is suitable to further contain a large particle size metal oxide as the component (F).

It is more preferable that the large particle size metal oxide is larger than the particle size of (A) (preferably the average particle diameter (D50) exceeds 0.1 μm) and the average particle diameter (D50) is 4 μm or less. It is more preferable that the large-diameter metal oxide contains one or two or more types selected from titanium oxide, zinc oxide, and iron oxide.

[12] In any one of the above [1] to [11], the component (G) preferably contains 2 to 7 mass% of boron nitride.

[13] In any one of [1] to [12] above, it is preferable that the component (C) contains phenyl-modified silicone.

[14] In any one of the above [1] to [13], it is preferable that the content ratio of the component (C) in the entire emulsion is component (C)/total blended oil = 0.3 to 1.0.

[15] In any one of the above [1] to [14], the solid powder cosmetic is obtained by mixing the above (A) to (C) with a solvent to form a slurry, filling it in a container, and then removing the solvent. Suitable.

Example

The present invention will be described in detail below with reference to examples. Additionally, they do not limit the present invention in any way.

<Manufacture of amino-modified silicone surface-treated powder>

[Preparation Example 1: Preparation of amino-modified silicone-treated mica]

Amino-modified silicone (KF867S/manufactured by Shin-Etsu Chemical Co., Ltd., kinematic viscosity 1300 mm ² /s (25°C), amino equivalent weight 1700 g/mol) 3 parts by mass and mica (Y-2300: average particle diameter (D50) 19 μm, plate shape, Yamaguchi 97 parts by mass (manufactured by Myka Co., Ltd.) were mixed for 3 hours using a thunder gauge (ZOD type/Ishikawa Kojo) and heated at 100°C for 4 hours. Afterwards, it was pulverized with an atomizer (LM-05/DALTON Corporation) to obtain powdery amino-modified silicone-treated mica (1) (surface coverage: 3%). .

[Preparation Example 2: Preparation of amino-modified silicone-treated talc]

[Preparation of dimethiconol emulsion]

Add 450 g of octamethylcyclotetrasiloxane, 500 g of ion-exchanged water, and 6.75 g of sodium lauroylmethyl taurate to a polyethylene beaker with a capacity of 2 liters. After premixing by stirring with a homomixer at 2000 rpm, 4 g of citric acid was added, The temperature was raised to 70°C and emulsion polymerization was performed for 24 hours at 5000 rpm in a homomixer. A water emulsion containing high molecular weight dimethiconol (a) was obtained by emulsifying and dispersing once at 50 MPa using a tabletop pressure homogenizer (manufactured by APV Golin). Subsequently, 10% sodium carbonate was added to adjust the pH to 7, and the water emulsion (2) of (a) was obtained. This water emulsion (2) was dried at 105°C for 3 hours to volatilize the water, and the weight average molecular weight in terms of PS was determined by GPC for the solid content, which was found to be 10000. The solid content was 46.5%. In addition, the diorganopolysiloxane contained in the solid content corresponds to the surface coating treatment agent (a): both terminal reactive diorganopolysiloxane represented by general formula (2).

[Manufacture of powder surface treated with silicon fine cross-linked product]

In a PE container with a capacity of 20 liters, add 7 L of water and 1 kg of talc (JA-13R: average particle diameter (D50) 5 to 8 μm, manufactured by ASADA MILLING CO., LTD.), and mix with a disper mixer ( It was dispersed for 5 minutes at 2000 rpm using PRIMIX Corporation (AM-40). 103 g of the above dimethiconol emulsion was added and stirred at 2500 rpm for 5 minutes. Subsequently, 96 g of a 5% by mass aqueous solution of aminopropyltriethoxysilane (KBE-903: manufactured by Shin-Etsu Chemical Co., Ltd.) was added as a crosslinking agent. After adjusting the pH to 10.3 with 1N-NaOH aqueous solution, the reaction was stirred at 3000 rpm for 30 minutes. After filtering with a centrifugal dehydrator and washing with 7 L of water, the dehydrated cake was dried in a dryer at 120°C for 16 hours. At this time, a temperature sensor was inserted into the cake to record the temperature, and it was found to be heated above 115°C for 7 hours. The dried cake was pulverized with a pulverizer to obtain powdered amino-modified silicone-treated mica (2) (surface coverage: 5%).

In addition, as described above, amino-modified silicone having a cross-linked structure obtained by dimethiconol and aminopropyltriethoxysilane was used as a surface treatment agent. The content of dimethiconol and aminopropyltriethoxysilane in the silicon fine cross-linked product The mass ratio was dimethiconol/aminopropyltriethoxysilane = 100/10 (surface coating treatment agent (a)/surface coating treatment agent (b) = 100/10).

In addition, the silicone micro-crosslinked product has a soft rubber hardness value of less than 5, a complex elastic modulus of 10,000 to 100,000 Pa in dynamic viscoelasticity measurement (25°C, strain 17%, shear frequency 4 Hz), and a loss coefficient tanδ of 1.0 to 2.0. It is desirable to prepare it as much as possible.

<Examples 1 to 15, 19 to 23 and Comparative Examples 1 to 5: Foundation (solid)>

Each foundation shown in Table 1 (Table 1-1 and Table 1-2) was prepared, and the following evaluation was performed for high transparency, no sticky feeling, smooth surface of the molded product, no shrinkage of the molded product, and impact resistance. And it was judged according to the following criteria. The results are also shown in Table 1.

[Table 1-1]

[Table 1-2]

In Table 1,

*1: SMT-500SAS (Taika Co., Ltd. product) (average particle diameter: 0.035μm)

*2: MZ-500 (product of Teika Co., Ltd.) (average particle diameter: 0.025μm)

*3: SA-SERICITE FSE (Miyoshi Kasei Co., Ltd. product) (average particle diameter: 10 μm)

*4: SHP-6 (Mizushima Alloy Iron Co., Ltd. product) (average particle diameter: 8.5μm)

*5: Micro Mica MK-200K (Mizushima Alloy Iron Co., Ltd. product) (average particle diameter: 5.8 to 8.2 μm)

*6: AMIHOPE LL (Ajinomoto Co., Inc. product) (average particle diameter: 15 μm)

*7: KSP-100 (Shin-Etsu Chemical Co., Ltd. product) (average particle diameter: 5μm)

*8: KSG-16 (Shin-Etsu Chemical Co., Ltd. product)

*9: KSG-310 (Shin-Etsu Chemical Co., Ltd. product)

*10: Silicone KF-96-10CS (Shin-Etsu Chemical Co., Ltd. product)

*11: Silicone KF-56 (Shin-Etsu Chemical Co., Ltd. product)

*16: MTY-700BS (Teika Co., Ltd. product) (average particle diameter: 0.08μm)

*17:

*18: MZY-203M (product of Teika Co., Ltd.) (average particle diameter: 0.05μm)

Additionally, silicone oil with an average molecular weight of 500 to 15,000 is used. The “average particle diameter” (median diameter D50: diameter or major axis) of each component used in the examples was measured using a scanning electron microscope (SEM) image and image analysis device (Ruzex IIIU or its successor, Ruzex AP). , product of Nireco Co., Ltd.) can be obtained by measurement. Additionally, No.13 is TAROX R-516P (average particle diameter (D50): 0.7μm (long axis), needle-shaped), and No.14 is TAROX YP1200P (average particle diameter (D50): 0.8μm (long axis), needle-shaped). , NO.15 can use a large particle size metal oxide of TAROX BL-100P (average particle diameter (D50): 0.3μm, granular). No.7 boron nitride has an average particle diameter (D50) of 8.5 μm and is plate-shaped. Additionally, No. 8 (fluoride/hydroxide/oxidation)/(Mg/K/silicon) has an average particle diameter (D50) of 5.8 to 8.2 μm and is plate-shaped.

(Manufacturing method)

A. Mix components (1) to (15), (1-1), (2-1), and (3-1) uniformly.

B. A uniform mixture of components (16) to (21) was added to A, dispersed uniformly, and pulverized to obtain a cosmetic base.

C. 50 parts of solvent (isododecane) was added to 100 parts of the cosmetic base and mixed to obtain a slurry-like mixture.

D. 11 g of the above mixture was filled into a round metal plate (diameter 5.5 cm) and compressed four times under the conditions of press pressure of 2.0 kgf/cm ² , press time of 4 seconds, and 6 sheets of paper to remove some of the solvent. Afterwards, it was dried at 70°C for one full day to remove the solvent to obtain a foundation (foundation filled in a round metal dish: hereinafter also referred to as “the above foundation”).

(Assessment Methods)

Each of the following evaluation items was evaluated using the following method.

(Evaluation items)

(A) High transparency

(B) No stiff feeling

(c) The surface of the molded product is smooth.

(D) No shrinkage of the molded product

(E) Impact resistance

(Evaluation method: High transparency, no sticky feeling, molded product surface is smooth)

A usage test was conducted on the above foundation by a professional evaluation panel of 20 people, and each panel member evaluated it in 5 levels according to the absolute evaluation below and gave a rating, and the average value was calculated from the sum of the ratings of all panelists for each sample. Therefore, the decision was made according to the following four-step judgment criteria. (a) High transparency means that each sample was applied on the skin and evaluated to see whether it had a finish that felt like bare skin without any white cast. (B) The absence of a sticky feeling refers to whether each sample was applied and evaluated whether it did not get caught on the skin and there was no feeling of friction. (c) The smoothness of the surface of the molded product was evaluated as whether or not there was a feeling of sliding without feeling any irregularities when touching the surface of the molded product with a finger.

<Evaluation criteria>

(Evaluation result): (rating)

Very good: 5 points

Good: 4 points

Average: 3 points

Slightly bad: 2 points

Defective: 1 point

<Step 4 Judgment Criteria>

(Judgment): (Evaluation criteria)

◎: Exceeds 4.0 points: (Very good)

○: More than 3.5 points and less than 4.0 points: (Good)

△: Over 2.0 points but below 3.5 points: (slightly poor)

×: 2.0 points or less: (defect)

(Evaluation method: No shrinkage of molded product)

The surface condition of each of the five foundations was observed with the naked eye and judged according to the following four-step judgment criteria.

<Step 4 Judgment Criteria>

(Judgment): (Number of molded products with gaps or cracks of 2mm or more)

◎ : 0

○: 1

△: 2

×: 3 or more

(Evaluation method: impact resistance)

Five pieces of the foundation were each freely dropped onto an acrylic plate from a height of 30 cm, and judged according to the following four-step judgment criteria.

<Step 4 Judgment Criteria>

(Judgment): (Number of molded products that are tilted, broken, or lifted)

◎ : 0

○: 1

△: 2

×: 3 or more

In addition, in cases where it was difficult to judge whether it was “present or not” in terms of (evaluation method: high transparency, no sticky feeling, smoothness of the surface of the molded product), <evaluation criteria> was judged as “average 3 points.” For example, if all panelists judge the product to be “average 3 points,” the average score of the total score <4-level judgment standard> becomes “3.0 points,” which becomes the evaluation standard of “△ (slightly poor).” <Level 4 Judgment Criteria> In order to achieve the evaluation standard of “○ (good)”, it is necessary to obtain <evaluation standard> “Good: 4 points” or higher.

Additionally, it is preferable to use an average molecular weight of the silicone oil of 500 to 15,000.

As can be clearly seen from the results in Table 1, Examples 1 to 15 and 19 to 23 were cosmetics with excellent transparency, no sticky feeling, excellent surface smoothness of the molded product, no shrinkage of the molded product, and excellent impact resistance. .

On the other hand, in Comparative Example 1, in which a large amount of titanium oxide (No. 2) having an average particle diameter of 0.25 μm as component (F) was used instead of component (A), transparency was impaired due to white turbidity resulting from its optical properties. It has been done. In Comparative Examples 2 and 3, which did not contain component (B), the stiff feeling resulting from the fine metal oxide could not be suppressed, and the smoothness and impact resistance of the surface of the molded product were poor. In Comparative Example 4, in which ester oil was used instead of component (C), the smoothness of the molded product surface, no shrinkage, and impact resistance were significantly poor due to the influence of the high bonding force with the powder. Additionally, in Comparative Example 5, in which a large amount of component (C) was mixed, the solvent removal efficiency deteriorated as the powder was wetted by the emulsion, resulting in shrinkage of the molded product and a corresponding decrease in impact resistance.

From this, in order to obtain a solid powder cosmetic with excellent transparency, no sticky feeling, excellent surface smoothness of the molded product, no shrinkage of the molded product, and excellent impact resistance, (A) fine particles of metal oxide, (B) amino-modified silicone treated powder , (C) It was thought that it was important to use silicone oil.

In order to obtain a more remarkable effect, a partially crosslinked organopolysiloxane polymer is used as component (D), (fluorination/hydroxide/oxidation)/(Mg/K/silicon) as component (E), and a large particle size metal as component (F). It was considered appropriate to further use one or two or more types selected from boron nitride as oxide and component (G) in solid powder cosmetics. In order to obtain a more remarkable effect, it is preferable to contain phenyl-modified silicone in the component (C) silicone oil, and the mass ratio of phenyl-modified silicone/component (C) silicone oil is preferably 0.3 or more, more preferably. I thought it was 0.3 to 0.9.

In addition, in order to obtain a more remarkable effect, as a mass ratio when mixing the components, the content mass ratio of the component (A) and the component (C) is (C)/(A) = 0.6 to 15, and/or It was considered appropriate that the content ratio of the component (C) in the entire emulsion was component (C)/total blended emulsion = 0.6 to 1.0.

In addition, the large-diameter metal oxides used in Examples 19 to 23 were TAROX R-516P for red iron oxide, TAROX YP1200P for sulfur oxide, and TAROX BL-100P for black iron oxide.

Reference Example 16: powder (solid)

(ingredient) (%)

1. Amino-modified silicone-treated talc 40 of Preparation Example 2

2. Titanium oxide (average particle diameter: 0.035μm) *1 2

3. Talc remaining amount

4. Titanium mica 15

5. Boron nitride 5

6. (Fluorination/Hydroxylation/Oxidation)/(Mg/K/Silicon) *5 3

7. Polyethylene powder *12 5

8. Methyl methacrylate crosspolymer *13 10

9. Bengala 1

10. Iron sulfate 2

11. Black iron oxide 0.3

12. Methyl paraoxybenzoate 0.2

13. Paramethoxycinnamic acid 2—ethylhexyl 2

14. Pentaerythrityl tetraisostearate 2

15. Octyldodecyl stearoyloxystearate 2

16. Dimethylpolysiloxane (6mPa·s) 3

17. (Dimethicone/vinyl dimethicone) crosspolymer *8 1

18. Squalane 0.5

19. Magnesium aluminum silicate 1

*12 MIPELON PM-200 (Mitsui Chemicals, Inc.)

*13: MATSUMOTO MICROSPHERE M-305 (Matsumoto Yushi-Seiyaku Co., Ltd. product)

(Manufacturing method)

A. Mix components (1) to (12) uniformly.

B. Components (13) to (19) were uniformly mixed in A and dispersed uniformly, and after pulverization, a cosmetic base was obtained.

C. 70 parts of water was added to 100 parts of the cosmetic base and mixed. After kneading at room temperature, this was filled into a resin dish container, the water was removed by drying, and powder was obtained.

delete

Reference Example 17: Cheek rouge (solid)

(ingredient) (%)

1. Amino-modified silicone-treated mica 15 of Preparation Example 1

2. Amino-modified silicone-treated talc 2 of Preparation Example 2

3. Fine particle titanium oxide (average particle diameter: 0.035μm) *1 2

4. Boron nitride 5

5. Red No. 226 0.5

6. Octyltriethoxysilane (3%) treated sericite 35

7. Nylon powder (average particle diameter 10μm) 5

8. Styrene powder (average particle diameter 6μm) 5

9. Talc remaining amount

10. Silicone elastomer powder *14 1

11. Zinc myristic acid 1

12. Methyl methacrylate crosspolymer 4

13. (Fluorination/Hydroxylation/Oxidation)/ (Mg/K/Silicon) *15 3

14. Methylparaben 0.2

15. Dimethylpolysiloxane *10 3

16. PEG-10 hydrogenated castor oil 0.5

17. Tri(caprylic/capric)glyceryl 3

18. Di2-ethylhexyl succinic acid 3

19. (Dimethicone/vinyl dimethicone) crosspolymer *8 1

20. Sage oil 0.1

21.Astaxanthin 0.001

22. Appropriate amount of spices

*14: TREFIL E-506C (Dow Corning Toray Co., Ltd. product)

*15: Micro Mica MK-300K (product of Katakura Corp. Agri Co., Ltd.)

(Manufacturing method)

A. Mix components (1) to (14) uniformly.

B. Components (15) to (22) were uniformly mixed in A and dispersed uniformly, and after pulverization, a cosmetic base was obtained.

C. 60 parts of solvent (light liquid isoparaffin) was added to 100 parts of the cosmetic base and mixed to obtain a slurry-like mixture.

D. The mixture was filled in a round metal dish (5.5 cm in diameter) and pressed to remove some of the solvent. Afterwards, it was dried at 70°C for one day to remove the solvent to obtain cheek rouge.

delete

Reference Example 18: Eyebrow (solid)

(ingredient) (%)

1. Fine particle titanium oxide (average particle diameter: 0.035μm) *1 2

2. Boron nitride (average particle diameter 5μm: plate shape) 5

3. Amino-modified silicone-treated oxidized mica 10 of Preparation Example 1

4. Amino-modified silicone-treated talc 30 of Preparation Example 2

5. Bengala 0.5

6. Iron sulfate 5

7. Black iron oxide 1.5

8. Methyl methacrylate crosspolymer *13 2

9. Lauroyllysine 1

10. (Fluorination/Hydroxylation/Oxidation)/(Mg/K/Silicon) *5 5

11. Synthetic wax 2

12. Phospholipid (1%) treated sericite remaining amount

13. Anhydrous silicic acid (average particle diameter 2μm) 5

14. Dimethylpolysiloxane *10 3

15. (Dimethicone/vinyl dimethicone) crosspolymer *8 0.5

16. PEG lyoleate-sorbitan decoxide 0.2

17. Cholesteryl hydroxystearate 1.5

18. Hydrolyzed collagen 0.01

19. Appropriate amount of fragrance

(Manufacturing method)

A. Mix components (1) to (10) uniformly.

B. Components (11) to (19) were uniformly mixed in A and dispersed uniformly, and after pulverization, a cosmetic base was obtained.

C. B was filled in a resin dish and pressure molded to obtain a powder-solid eyebrow.

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Example 24: Powder foundation (solid)

A slurry powder foundation was prepared according to the following prescription and production method.

(ingredient) (%)

1. Silicone treated titanium oxide (average particle diameter 15nm) *19 10.0

2. Iron oxide coated titanium oxide (average particle diameter 400 nm) 10.0

3. Dimethicone treated zinc oxide (average particle diameter 35nm) *20 5.0

4. Boron nitride 10.0

5. Bismuth oxychloride 6.5

6. Calcined Sericite 10.0

7. Red iron oxide 0.5

8. Yellow iron oxide 1.7

9. Black iron oxide 0.15

10. My Car remaining amount

11. Porous spherical silica

(Average particle diameter 8μm, oil absorption 130ml/100g) 5.0

12. Cellulose 3.0

13. Lauroyllysine 4.0

14. Amino-modified silicone-treated talc *21 10.0

15. Paramethoxycinnamic acid 2—ethylhexyl-containing polysilicon—14 capsules 5.0

16. Diphenylsiloxyphenyltrimethicone 8.0

17. Isotridecyl isononanoate 5.0

18. Dimethylpolysiloxane 2.0

19. Clophenesin 0.2

*19: MTY-100SAS (Teika Co., Ltd. product)

*20: MZX-300M (Teika Co., Ltd. product)

*21: SE-TA-46R (Miyoshi Kasei Co., Ltd. product)

(Manufacturing method)

A. Mix ingredients (1) to (15) uniformly with a super mixer.

B. A uniform mixture of components (16) to (19) was added to A, dispersed uniformly, and after pulverization, a cosmetic base was obtained.

C. 50 parts of solvent (isododecane) was added to 100 parts of the cosmetic base and mixed to obtain a slurry-like mixture.

D. 11 g of the above mixture was filled into a round metal plate (diameter 5.5 cm) and compressed four times under the conditions of press pressure of 2.0 kgf/cm ² , press time of 4 seconds, and 6 sheets of paper to remove some of the solvent. Afterwards, it was dried at 70°C for one day to remove the solvent, and a foundation was obtained.

The effect of the powder foundation (solid) obtained in this example was evaluated according to Example 1, and it was found to have excellent transparency, no sticky feeling, excellent surface smoothness of the molded product, no shrinkage of the molded product, and excellent impact resistance.

Claims (10)

The following components (A) to (C);
(A) Fine particle metal oxide with an average particle diameter (D50) of 0.01 μm or more and 0.15 μm or less.
(B) Amino-modified silicone treated powder
(C) Silicone oil 4-30% by mass
Contains,
The content ratio of the component (C) in the entire emulsion is component (C)/total blended emulsion = 0.6 to 1.0.
Solid powder cosmetics.

According to paragraph 1,
A solid powder cosmetic wherein the component (A) contains one or two or more types selected from titanium oxide and zinc oxide.
According to claim 1 or 2,
A solid powder cosmetic wherein the content ratio of the component (A) and the component (C) is (C)/(A) = 0.6 to 15.
According to claim 1 or 2,
A solid powder cosmetic further containing a partially crosslinked organopolysiloxane polymer as component (D).
According to claim 1 or 2,
A solid powder cosmetic further containing (fluoride/hydroxide/oxidation)/(Mg/K/silicon) as component (E).
According to claim 1 or 2,
A solid powder cosmetic that further contains, as component (F), a metal oxide with a larger particle size than the component (A).
According to claim 1 or 2,
A solid powder cosmetic further containing 2 to 7% by mass of boron nitride as component (G).
According to claim 1 or 2,
A solid powder cosmetic comprising phenyl-modified silicone as the component (C).
According to claim 1 or 2,
A solid powder cosmetic having a content of the component (C) of 6.1 to 30% by mass.
The following components (A) to (C);
(A) Fine particle metal oxide with an average particle diameter (D50) of 0.01 μm or more and 0.15 μm or less.
(B) Amino-modified silicone treated powder
(C) Silicone oil 4-30% by mass
The mass ratio of the component (C) contained in the entire emulsion is component (C)/total blended emulsion = 0.6 to 1.0.
A solid powder cosmetic obtained by using as a cosmetic base, mixing the above (A) to (C) with a solvent to form a slurry, filling it in a container, and then removing the solvent.