cosmetics

Abstract

To provide a technique that forms a cosmetic film that is thin and has a natural finish, yet possesses high concealing power, is free of irregularities, and exhibits high gloss.SOLUTION: A cosmetic product includes: an emulsion cosmetic that includes (A) composite powder with plate-like powder coated by pigment powder, (B) an extender pigment, and (C) a surfactant, with the mass ratio of the component (A) to the component (B), (A) / (B), of 1-10; and a carrier impregnated with the cosmetic.SELECTED DRAWING: None

Description

Technical Field

[0001] The present invention relates to cosmetics.

Background Art

[0002] Obtaining a natural makeup finish with a thin film without giving a thick-coated impression is an important role given to cosmetics, particularly makeup cosmetics. However, it is difficult to effectively conceal skin problems such as wrinkles, stains, and dullness with a thin film.

[0003] In order to enhance the concealing power, plate-shaped powder with high concealing power can be blended into the cosmetic. However, when blending plate-shaped powder, unevenness is likely to occur on the skin when the cosmetic is applied, leading to poor texture and lack of gloss. Furthermore, when a binder is blended to improve the elongation of the cosmetic, it leads to an increase in the film thickness. Therefore, there has been a demand for a technology to form a cosmetic film that has a high concealing power, no unevenness, and high gloss while having a natural finish with a thin film.

[0004] In recent years, cosmetics such as foundations have been proposed in which a cosmetic is impregnated into an impregnated body such as a sponge and stored in a compact case (for example, Patent Document 1). This is called a cushion foundation and is convenient for carrying. In addition, it combines the good finish of a liquid cosmetic and the usability of being able to pick up and apply the cosmetic with one hand using a puff without getting the hands dirty, and has come to be widely used.

Prior Art Documents

Patent Documents

[0005]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0006] The present invention aims to provide a technology for forming a cosmetic film that is thin, has a natural finish, yet possesses high opacity, is smooth, and has a high gloss. [Means for solving the problem]

[0007] The inventors of the present invention have found that the above problems can be solved by providing an emulsified cosmetic composition containing (A) a plate-shaped powder in which pigment powder is coated on the surface of a specific mass ratio, (B) an extender pigment, and (C) a surfactant, in the form of a cushion foundation, and have completed the present invention. In other words, the gist of this invention is as follows:

[0008] [1](A) A composite powder in which a pigment powder is coated on the surface of a plate-shaped powder, (B) extender pigments, and (C) Surfactants, Includes, Emulsified cosmetic composition in which the mass ratio of component (A) to component (B): (A) / (B) is 1 to 10, and A carrier impregnated with the aforementioned cosmetic, Cosmetics, including [2] The cosmetic according to [1], wherein the pigment powder in component (A) is at least one selected from titanium dioxide, aluminum oxide, silica, and iron oxide. [3] The cosmetic according to [1] or [2], wherein the plate-like powder in component (A) is at least one selected from the group consisting of talc, mica, sericite, and boron nitride. [4] A cosmetic product according to any of [1] to [3], wherein the content of ingredient (A) relative to the total cosmetic product is 0.1 to 15.0% by mass. [5] The cosmetic according to any one of [1] to [4], wherein the extender pigment in component (B) is at least one selected from the group consisting of talc, silica, and organic beads. [6] A cosmetic product according to any of [1] to [5], wherein the content of ingredient (B) relative to the total cosmetic product is 0.1 to 10.0% by mass. [7] The cosmetic according to any one of [1] to [6], wherein the surfactant in component (C) is at least one selected from the group consisting of polyether-modified silicone, polyglycerin-modified silicone, polyglycerin fatty acid ester, and sucrose fatty acid ester. [8] A cosmetic product according to any of [1] to [7], wherein the content of ingredient (C) relative to the total cosmetic product is 0.5 to 10.0% by mass. [9] The cosmetic according to any one of [1] to [8], further comprising at least one inorganic pigment selected from the group consisting of coloring pigments, white pigments, and pearl pigments.

[10] A cosmetic product according to any one of [1] to [9], wherein the total powder content relative to the entire cosmetic product is 0.2 to 30.0% by mass.

[11] Cosmetics according to any of [1] to

[10] , wherein the cosmetic is a water-in-oil emulsion cosmetic. [Effects of the Invention]

[0009] According to the present invention, it is possible to provide a technology for forming a cosmetic film that is thin, has a natural finish, yet possesses high opacity, is free of unevenness, and has high gloss. [Modes for carrying out the invention]

[0010] In describing the details of the cosmetic product of the present invention, specific examples will be given, but the invention is not limited to the following and can be modified as appropriate, as long as it does not deviate from the spirit of the present invention.

[0011] <Cosmetics> One aspect of the present invention relates to a cosmetic product (hereinafter sometimes referred to as "the cosmetic product of the present invention") comprising (A) a composite powder in which a pigment powder is coated on the surface of a plate-like powder, (B) an extender pigment, and (C) a surfactant, wherein the mass ratio of component (A) to component (B): (A) / (B) is 1 to 10, and a carrier impregnated with the cosmetic product.

[0012] The inventors diligently conducted research in search of a technology to form a cosmetic film that is thin, natural-looking, yet possesses high opacity, a smooth surface, and high gloss. The inventors discovered that by using a composite powder, in which a pigment powder is coated on the surface of a plate-shaped powder, it is possible to enhance opacity while suppressing unevenness when applied to the skin. Furthermore, they found that by adjusting the mixing ratio of the composite powder to the extender pigment within an appropriate range, it is possible to achieve a thin, natural-looking finish while maintaining high opacity. They also discovered that by impregnating a cosmetic containing the composite powder into an impregnating body and placing it in a container, the plate-shaped particles become parallel during the process of dispensing the cosmetic from the container through the impregnating body, resulting in a smooth, high-gloss cosmetic film when applied to the skin. This invention was achieved based on these findings.

[0013] ≪(A) Composite powder in which pigment powder is coated on the surface of a plate-shaped powder≫ In the present invention, a composite powder (hereinafter sometimes simply referred to as "composite powder") in which a pigment powder is coated on the surface of a plate-shaped powder of component (A) contained in the cosmetic composition is a plate-shaped powder (hereinafter sometimes referred to as "base material") whose surface is coated with pigment powder. The plate-shaped powder that serves as the base powder is not particularly limited as long as it achieves the effects of the present invention, and for example, talc, mica, sericite, boron nitride, etc. can be used. Preferably, the plate-shaped powder has an aspect ratio (particle diameter / thickness) of 2 or more. The aspect ratio here is the value obtained by dividing the average major axis of the plate-shaped powder by the average thickness, and can be determined by commonly used methods. Specifically, for example, it can be determined by calculating the average major axis by taking the arithmetic mean of the major axis and minor axis in the length direction from a scanning electron microscope image, and then calculating the average thickness by taking the arithmetic mean of the maximum thickness and minimum thickness.

[0014] The pigment powder that coats the plate-like powder is not particularly limited as long as it exhibits the effects of the present invention. For example, titanium oxide, iron oxide, silicon oxide (silica), aluminum oxide (alumina), tin oxide, zinc oxide, zirconium oxide, cerium oxide, thallium oxide, magnesium oxide, yttrium oxide, etc. can be used, and titanium oxide, aluminum oxide, silica, and iron oxide are preferred. As the pigment powder that coats the plate-like powder, one kind or two or more kinds may be used.

[0015] The composite powder is not limited, but for example, it may have the following physical properties. The composite powder may be one in which two or more kinds of inorganic oxides having different refractive indices are laminated in order from the one with the higher refractive index on a substrate. That is, it may be one in which the refractive index of the pigment powder in the layer closer to the substrate is higher, and the ones with lower refractive indices are laminated as the outermost layer is approached.

[0016] The substrate in the composite powder is preferably scaly, having an average particle diameter (major axis) of 0.5 to 20 μm and a thickness of 0.05 to 1 μm.

[0017] The following are preferably cited as the pigment powder that coats the composite powder (the numerical values in parentheses are refractive indices). Titanium oxide (2.50) Zinc oxide (2.0) Zirconium oxide (2.2) Cerium oxide (2.2) Tin oxide (2.0) Thallium oxide (2.1) Aluminum oxide (1.73) Magnesium oxide (1.77) Yttrium oxide (1.92) Silica (1.45) Furthermore, a mixture of these pigment powders, or a pigment powder that is a composite or solid solution may also be used.

[0018] The pigment powder coating the composite powder can be selected based on the required coverage of the cosmetic containing the pigment powder coating the composite powder. To further enhance coverage, it is preferable to coat the first layer with a pigment powder with a high refractive index, such as titanium dioxide. On the other hand, if the first layer is coated with a pigment powder with a moderate refractive index, such as aluminum oxide, the coverage will be further reduced.

[0019] For the second and subsequent layers, the difference in refractive index between the pigment powder formed in the outermost layer and the pigment powder in the inner layer is preferably 0.6 or less, more preferably 0.5 to 0.05, which improves light reflection. It can suppress odors and create a translucent appearance. To further suppress light reflection and enhance transparency, the difference in refractive index between all adjacent layers should be 0.6 Hereafter, the more preferable value will be 0.5 to 0.05. The smaller the difference in refractive index between each pigment powder layer, the more ideal the laminated coating becomes, resulting in a composite powder that is non-reflective and highly transparent.

[0020] The number of pigment powder layers in the composite powder is not particularly limited, but is preferably 3 to 9, and more preferably 3 to 6. Within this range, light reflection is suppressed, resulting in a powder with excellent transparency.

[0021] In the composite powder, the pigment powder layer is preferably an outermost layer of pigment powder with a refractive index of 1.73 or less, more preferably 1.5 or less, and even more preferably 1.35 to 1.5. This allows for greater suppression of light reflection and enhanced transparency by considering the refractive index of other ingredients incorporated into the cosmetic product.

[0022] The composite powder is defined as a case where the difference in refractive index between all adjacent pigment powder layers is not 0.6 or less. Furthermore, it is preferable that the thickness of at least one of the layers from the second layer onwards in the pigment powder layer is within ±20% of the value d defined by the following formula (1). d = (λ × X / 4) / n ... (1) (λ: wavelength of visible light, X: odd integer, n: refractive index of the pigment powder) This is because the phase of the reflected light from the layer located below the aforementioned layer is reversed, and the reflection of light is suppressed due to the interference effect of light, resulting in a transparent appearance.

[0023] The wavelength λ of visible light mentioned above is typically a value within the range of 380 to 780 nm. For example, to effectively reduce the reflected light of the entire visible light spectrum, it is preferable to use 550 nm, which is close to the average value of the visible light wavelengths within the above range. Furthermore, depending on the intended use of the cosmetic product, such as preferred shades and colors, and the usage environment, such as daytime, nighttime, lighting, and clothing color, the wavelengths to be reflected and the wavelengths to be reduced can be selected in the above formula, and the thickness of the layer can also be adjusted. For odd values ​​of X, 1 is usually used because it allows for thinner layers. For example, when coating a titanium oxide layer with aluminum oxide, λ = 550 nm and n = 1.73, so the thickness of the aluminum oxide layer is approximately 80 nm.

[0024] The total amount of pigment powder coating the composite powder is not particularly limited, but it is preferably in the range of 1 to 70 parts by mass per 100 parts by mass of the substrate, and more preferably in the range of 5 to 50 parts by mass. If the coating amount is less than 1 part by mass, sufficient coverage cannot be obtained, and if it is more than 70 parts by mass, the coverage may be too strong, resulting in an unnatural finish, or the coating may be too thick, resulting in a poor feel.

[0025] The average particle size (major axis P) of the composite powder is not particularly limited, but is preferably between 1 and 5,000 μm. A range of 2 to 500 μm is more preferable. Within this range, the feel of the product is less likely to be impaired when it is incorporated into cosmetics. The average particle size (P) is measured using conventional methods based on observation images obtained with an electron microscope, using image analysis software, etc., and the unit observation field (e.g., 10 mm) is used. 2 This is the average value calculated per unit.

[0026] Composite powders can be purchased and used from the market as cosmetic powders, or they can be manufactured by coating plate-shaped powders with pigment powders according to conventional methods. For example, one such manufacturing method involves immersing plate-shaped powders in an aqueous solution of a water-soluble titanium salt such as titanium chloride, neutralizing it with an alkali to precipitate titanium hydroxide on the plate-shaped powders, and then firing it at 500 to 1000°C.

[0027] The composite powder of component (A) can be used as is, or it can be used after further surface treatment by a conventional method, to the extent that it does not impair the effects of the present invention. Such treatments are not limited to, but suitable examples include acrylic resin coating, hydrogen methylpolysiloxane baking treatment, methylpolysiloxane baking treatment, silylation treatment with a silylation agent containing perfluoroalkyl silylate, acylated amino acid metal salt coating treatment, metal soap coating treatment, phospholipid coating treatment, and perfluoroalkyl phosphate coating treatment. These treated powders can also be used as composite powders of component (A).

[0028] The composite powder of component (A) may be of one or more types, and from the viewpoint of concealing power and suppression of unevenness when applied to the skin, the content may be 0.1% by mass or more, 0.5% by mass or more, 0.75% by mass or more, or 1% by mass or more, and may be 15% by mass or less, 10% by mass or less, 5% by mass or less, or 3% by mass or less, and may be any non-contradictory combination of these. In addition, the content of the composite powder of component (A) may be 0.1 to 15% by mass, 0.5 to 10% by mass, 0.75 to 5% by mass, or 1 to 3% by mass.

[0029] (B) Extender pigments The extender pigment of component (B) in the cosmetic composition of the present invention is an extender pigment other than a composite powder in which a pigment powder is coated on the surface of a plate-shaped powder of component (A) in the cosmetic composition of the present invention. The extender pigment of component (B) is not particularly limited as long as it achieves the effects of the present invention, and for example, mica, talc, kaolin, sericite, boron nitride, synthetic mica, calcium carbonate, magnesium carbonate, magnesium sulfate, anhydrous silicic acid (silica), aluminum oxide, organic beads (organic spherical powders such as polyethylene powder, polymethyl methacrylate (PMMA), nylon powder, organopolysiloxane elastomer, etc.) can be used, and preferably talc, silica, and organic beads.

[0030] These types of extender pigments can be purchased and used as commercially available cosmetic powders.

[0031] The average particle size of the extender pigment of component (B) is not limited, but may be, for example, 1 to 100 μm, 1 to 50 μm, or 1 to 20 μm. The particle size can be measured, for example, by electron microscopy or by laser diffraction scattering using a dry particle size distribution analyzer (e.g., Beckmann-Colter LS 13 320).

[0032] The extender pigment of component (B) can be used as is, or it can be used after its surface has been treated by a conventional method, as long as the effects of the present invention are not impaired. Such treatments are not limited to, but examples of suitably used treatments include acrylic resin coating, hydrogen methylpolysiloxane baking treatment, methylpolysiloxane baking treatment, silylation treatment with a silylation agent containing perfluoroalkyl silylate, acylated amino acid metal salt coating treatment, metal soap coating treatment, phospholipid coating treatment, and perfluoroalkyl phosphate coating treatment. These treated powders can also be used as the extender pigment of component (B).

[0033] The extender pigment of component (B) may be of one or more types, and from the viewpoint of forming a thin film and high opacity, the content may be 0.1% by mass or more, 0.5% by mass or more, 1% by mass or more, or 1.5% by mass or more, and 10% by mass or less, 5% by mass or less, 3% by mass or less, or 2% by mass or less, and any non-contradictory combination of these may be used. In addition, the content of the extender pigment of component (B) may be 0.1 to 10% by mass, 0.5 to 5% by mass, 1 to 3% by mass, or 1.5 to 2% by mass.

[0034] In the present invention, the mass ratio of component (A) to component (B): (A) / (B) is 1 or more, 1.5 or more, or 1.75 or more, from the viewpoint of thin film formation, high opacity, and suppression of unevenness. Or it may be 2 or more, and may be 10 or less, 4 or less, 3 or less, or 2.5 or less, and may be any non-contradictory combination of these. Also, (A) / (B) may be between 1 and 10, 1.5 and 4, 1.75 and 3, or 2 and 2.5.

[0035] In the present invention, the total powder content in the cosmetic composition may be, for example, 0.2 to 30% by mass, 1% to 25% by mass, or 5% to 20% by mass, relative to the total amount of the cosmetic composition.

[0036] (C) Surfactants The surfactant component (C) in the cosmetic composition of the present invention is not particularly limited as long as it achieves the effects of the present invention, and includes, for example, fatty acid soaps (sodium laurate, sodium palmitate, etc.); anionic surfactants such as potassium lauryl sulfate and alkyl triethanolamine ether sulfate; cationic surfactants such as stearyltrimethylammonium chloride, benzalkonium chloride, and laurylamine oxide; amphoteric surfactants such as imidazoline-based surfactants (2-cocoyl-2-imidazolinium hydroxide-1-carboxyethyloxy disodium salt, etc.), betaine-based surfactants (alkyl betaine, amide betaine, sulfobetaine, etc.), amphoteric surfactants such as acylmethyl taurine; sorbitan fatty acid esters (sorbitan monostearate, sorbitan sesquioleate, etc.), glycerin fatty acid esters (glyceryl monostearate, etc.), and propylene glycol fatty acid esters (propylene monostearate). Licol, etc.), hydrogenated castor oil derivatives, glycerin alkyl ether, POE sorbitan fatty acid esters (POE sorbitan monooleate, polyoxyethylene sorbitan monostearate, etc.), POE sorbitol fatty acid esters (POE-sorbitol monolaurate, etc.), POE glycerin fatty acid esters (POE-glycerin monoisostearate, etc.), POE fatty acid esters (polyethylene glyco monooleate, POE distearate, etc.) ), POE alkyl ethers (such as POE2-octyldodecyl ether), POE alkylphenyl ethers (such as POE nonylphenyl ether), Pluronic® type surfactants, POE·POP alkyl ethers (such as POE·POP2-decyltetradecyl ether), Tetronic surfactants, POE castor oil / hydrogenated castor oil derivatives (such as POE castor oil, POE hydrogenated castor oil), sucrose fatty acid esters, alkyl glucosides, and other nonionic surfactants;Silicone-based surfactants such as polyether-modified silicones (PEG-9 polydimethylsiloxyethyl dimethicone, (dimethicone / (PEG-10 / 15)) crosspolymer, etc.), long-chain hydrocarbon group-containing polyether-modified silicones (lauryl PEG-9 polydimethylsiloxyethyl dimethicone, etc.), polyglycerin-modified silicones (polyglyceryl-3 polydimethylsiloxyethyl dimethicone, etc.), long-chain hydrocarbon group-containing polyglycerin-modified silicones (lauryl polyglyceryl-3 polydimethylsiloxyethyl dimethicone, etc.), and acrylic silicone resins ((acrylates / dimethicone) copolymer, etc.) may be used.

[0037] From the viewpoint of formulation stability and other factors, the surfactants are preferably, for example, polyether-modified silicone, polyglycerin-modified silicone, polyglycerin fatty acid ester, and sucrose fatty acid ester.

[0038] Polyether-modified silicone refers to a compound having a structure in which a polyether chain is introduced into a silicone chain. For example, it may be a linear polyether-modified silicone in which the silicone chain is linear, a branched polyether-modified silicone in which the silicone chain is branched, or an alkyl-comodified polyether-modified silicone in which an alkyl chain is introduced in addition to the polyether chain. It may also be a cross-linked polyether-modified silicone in which the silicone chain is cross-linked. The cross-linked polyether-modified silicone may be used after swelling in a silicone oil. Examples of polyether chains include polyethylene glycol (PEG) and polypropylene glycol (PPG).

[0039] The polymerization number of the polyether chain is usually 9 or more, preferably 10 or more, and usually 20 or less, preferably 15 or less.

[0040] Examples of polyether-modified silicones include PEG-modified silicone, PPG-modified silicone, and PEG-PPG-modified silicone, with PEG-modified silicone being preferred.

[0041] Specific examples of polyether-modified silicones include PEG-9 polydimethylsiloxyethyl dimethicone, lauryl PEG-9 polydimethylsiloxyethyl dimethicone, PEG-10 dimethicone, cetyl PEG / PPG-10 / 1 dimethicone, and (dimethicone / (PEG-10 / 15)) crosspolymer. Note that commercially available polyether-modified silicones can be used.

[0042] Polyglycerin-modified silicone refers to a compound having a structure in which polyglycerin chains are introduced into a silicone chain. For example, it may be a linear polyglycerin-modified silicone in which the silicone chain is linear, a branched polyglycerin-modified silicone in which the silicone chain is branched, or an alkyl-comodified polyglycerin-modified silicone in which alkyl chains are introduced in addition to polyglycerin chains.

[0043] The polymerization number of the polyglycerin chain is usually 2 or more, preferably 3 or more, and usually 5 or less, preferably 4 or less.

[0044] Specific examples of polyglycerin-modified silicones include polyglyceryl-3 disiloxane dimethicone, polyglyceryl-3 polydimethylsiloxyethyl dimethicone, and lauryl polyglyceryl-3 polydimethylsiloxyethyl dimethicone. Note that commercially available polyglycerin-modified silicones can be used.

[0045] Polyglycerin fatty acid esters are esters of branched-chain or linear, saturated or unsaturated fatty acids with polyglycerin, and are not limited to those with a carbon number of 16 or more, more preferably 18 or more. The degree of polymerization of polyglycerin is not particularly limited, but 10 is particularly preferred. The number of fatty acids added is not particularly limited and may be mono-, di-, tri-, or more, but 2 to 5 is preferred.

[0046] Preferred examples of polyglycerin fatty acid esters include polyglyceryl dioleate, polyglyceryl trioleate, polyglyceryl tetraoleate, polyglyceryl pentaoleate, polyglyceryl dipalmitate, polyglyceryl tripalmitate, polyglyceryl tetrapalmitate, polyglyceryl pentapalmitate, polyglyceryl distearate, polyglyceryl tristearate, polyglyceryl tetrastearate, polyglyceryl pentastearate, polyglyceryl diisostearate, polyglyceryl triisostearate, polyglyceryl tetraisostearate, and polyglyceryl pentaisostearate.

[0047] More preferred examples include polyglyceryl-10 tristearate, polyglyceryl-10 pentastearate, and polyglyceryl-10 pentaisostearate, which have a glycerin degree of polymerization of 10.

[0048] Sucrose fatty acid esters refer to ester compounds obtained from sucrose and fatty acids, and the structure of the fatty acid, degree of esterification, etc., are not particularly limited. The number of carbon atoms in the fatty acid (hydrocarbon chain) of sucrose fatty acid ester is usually 5 or more, preferably 8. More preferably 10 or more, even more preferably 12 or more, and usually 20 or less, preferably 18 or less.

[0049] Sucrose fatty acid esters may be monoesters, diesters, triesters, tetraesters, pentaesters, hexaesters, heptaesters, octaesters, or mixtures thereof. Commercially available sucrose fatty acid esters are mixtures containing monoesters, diesters, etc., and any of these can be used, but the monoester content should be 20% by mass or more, preferably 40% by mass or more, more preferably 60% by mass or more, even more preferably 80% by mass or more, and particularly preferably 90% by mass or more.

[0050] Examples of sucrose fatty acid esters include sucrose laurate, sucrose oleate, sucrose myristate, sucrose palmitate, and sucrose stearate, with sucrose palmitate and sucrose stearate being preferred. Commercially available sucrose fatty acid esters can be used.

[0051] The surfactant of component (C) may be of one or more types, and from the viewpoint of formulation stability, the content may be 0.5% by mass or more, 1% by mass or more, 3% by mass or more, or 5% by mass or more, or 10% by mass or less, 9% by mass or less, 8% by mass or less, or 7% by mass or less, and may be any non-inconsistent combination of these. In addition, the content of the surfactant of component (C) may be 0.5 to 10% by mass, 1 to 9% by mass, 3 to 8% by mass, or 5 to 7% by mass.

[0052] <Carrier impregnated with cosmetic product> The cosmetic of the present invention is one in which a cosmetic composition is impregnated into a carrier. The carrier impregnated with the cosmetic composition (hereinafter sometimes simply referred to as "impregnated body") is placed in a container, and the cosmetic composition is dispensed from the container through the impregnated body for use. The carrier to which the cosmetic composition is impregnated is not limited, and any known carrier used in such a form of cosmetic can be applied. Examples include nonwoven fabrics made of single or mixed materials such as resin, pulp, or cotton, resin-processed fibers, foams such as sponges, and porous bodies with a continuous mechanism. Examples of materials include NBR (acrylonitrile butadiene rubber), SBR (styrene butadiene rubber), NR (natural rubber), urethane, nylon, polyolefin, polyester, EVA (ethylene vinyl acetate), PVA (polyvinyl alcohol), and silicone elastomer, but the impregnated body is not limited to these materials as long as it can contain the contents. The carrier impregnated with the cosmetic composition can be provided in the form of a cushion foundation, for example, contained in a tube-type container, dispenser container, jar container, etc.

[0053] The cosmetic of the present invention can be manufactured in accordance with known methods for manufacturing such a cosmetic. Specifically, for example, it can be manufactured as follows: Fill a container with the cosmetic. Place the impregnating body on top of the cosmetic. Slowly press the impregnating body. Insert the impregnating body into the container and maintain it inside the container. The amount of cosmetic composition contained in the impregnated material is not limited and is in line with known cosmetics of this form. For example, 0.05 to 0.99 mL / cm³. 3 It can be to a certain extent.

[0054] The cosmetic of the present invention can be used in accordance with the methods of use of known cosmetic products of this form. Specifically, for example, a user of the cosmetic can take the cosmetic from the impregnated body using a tool such as a puff. For example, the cosmetic in the impregnated body can be transferred from the carrier to the tool by pressing the tool against the impregnated body, or by touching the tool to the impregnated body without pressing it. The user may also take the cosmetic from the impregnated body using their fingers.

[0055] ≪Oil-based≫ The cosmetic composition in this invention contains an oil-based component as an external phase of the composition. The components constituting the oil-based component can be any components that can be commonly used as oils in cosmetics. For example, the oils described later can be used as optional components. From the viewpoint of usability (excellent spreadability, etc.), it is preferable that the oil contains silicone oil. Examples of silicone oils include hydrogen dimethicone, caprylyl methicone, dimethicone, diphenylsiloxy phenyl trimethicone, and cyclopentasiloxane. The viscosity of silicone oil at 25°C is, for example, 1,000 mPa·s or less, from the viewpoint of usability (excellent spreadability, etc.). Note that this viscosity refers to the value measured at 25°C using a Type B viscometer. The oil content in the cosmetic composition of the present invention is not particularly limited, but may be, for example, 20-90% by mass, 25-70% by mass, or 30-60% by mass relative to the total cosmetic composition.

[0056] ≪Water-based≫ The cosmetic composition in this invention contains an aqueous component as an internal phase of the composition. The aqueous component is usually a water-soluble component in addition to water, and refers to a component that dissolves in water after being suspended in water at 25-65°C and allowed to stand for 1 hour (excluding surfactants). One or more aqueous components can be used in this invention. As an aqueous component, for example, the components described later can be used as optional components. The water-based content in the cosmetic composition of the present invention is not particularly limited, but may be, for example, 10 to 60% by mass, 20 to 50% by mass, or 30 to 40% by mass relative to the total cosmetic composition.

[0057] ≪Optional ingredients≫ The cosmetic composition in this invention may contain optional components that are commonly used in cosmetics, in addition to the essential components. Optional ingredients include, for example, macadamia nut oil, avocado oil, corn oil, olive oil, rapeseed oil, sesame oil, castor oil, safflower oil, cottonseed oil, jojoba oil, coconut oil, palm oil, liquid lanolin, hydrogenated coconut oil, hydrogenated oil, Japanese wax, hydrogenated castor oil, beeswax, candelilla wax, carnauba wax, privet wax, lanolin, reduced lanolin, hard lanolin, jojoba wax, and other oils and waxes, liquid paraffin, squalane, pristane, ozokerite, paraffin, ceresin, petrolatum, and mic. Hydrocarbons such as chlorocrystalline wax; higher fatty acids such as oleic acid, isostearic acid, lauric acid, myristic acid, palmitic acid, stearic acid, behenic acid, and undecylenic acid; higher alcohols such as cetyl alcohol, stearyl alcohol, isostearyl alcohol, behenyl alcohol, octyldodecanol, myristyl alcohol, and cetostearyl alcohol; cetyl isooctanoate, isopropyl myristate, hexyldecyl isostearate, and diisopropyl adipate. Synthetic ester oils such as di-2-ethylhexyl sebatate, cetyl lactate, diisostearyl malate, ethylene glycol di-2-ethylhexanoate, neopentyl glycol dicaprate, glycerin di-2-heptylundecanoate, glycerin tri-2-ethylhexanoate, trimethylolpropane tri-2-ethylhexanoate, trimethylolpropane triisostearate, pentane erythritol tetra-2-ethylhexanoate, etc.; dimethylpolysiloxane (dimethicone), methyl Chain-like polysiloxanes such as diphenylpolysiloxane (diphenylsiloxyphenyl trimethicone), cyclic polysiloxanes such as octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane (cyclopentasiloxane), and dodecamethylcyclohexanesiloxane, modified polysiloxanes such as hydrogen dimethicone, amino-modified polysiloxane, polyethylene-modified polysiloxane, alkyl-modified polysiloxane, and fluorine-modified polysiloxane, etc. Oils such as corn oil; moisturizing ingredients such as sodium pyrrolidone carboxylate, lactic acid, sodium lactate, and isononyl isononanoate; silicone-based film-forming agents such as trimethylsiloxysilicate; inorganic white pigments (e.g., titanium dioxide, zinc oxide, etc.), inorganic coloring pigments (inorganic red pigments (e.g., iron oxide (red iron oxide), iron titanate, etc.), inorganic brown pigments (e.g., γ-iron oxide, etc.), inorganic yellow pigments (e.g., yellow iron oxide, ochre, etc.), inorganic black pigments (e.g., black iron oxide, lower titanium dioxide, etc.), inorganic purple pigments (e.g., mango violet, cobalt violet, etc.), inorganic green pigments (e.g., chromium oxide, chromium hydroxide, cobalt titanate, etc.), inorganic blue pigments (e.g., ultramarine, Prussian blue, etc.), etc.), pearl pigments (e.g., titanium dioxide coated mica, titanium dioxide coated bismodium oxychloride, etc.) may have their surfaces treated. Inorganic pigment powders such as titanium dioxide-coated talc, colored titanium dioxide-coated mica, bismuth oxychloride, titanium dioxide, silica, borosilicate, fish scale foil, etc.; Organic pigment powders such as Red 202, Red 228, Red 226, Yellow 4, Blue 404, Yellow 5, Red 505, Red 230, Red 223, Orange 201, Red 213, Yellow 204, Yellow 203, Blue 1, Green 201, Violet 201, Red 204, etc., which may be laked; Organic modified clay minerals such as quaternium-90 bentonite (reaction product of bentonite and quaternium-90); Water; Lower alcohols such as ethanol and isopropanol; Vitamin A or its derivatives, Vitamin B6 hydrochloride, Vitamin B6 tripalmitate, Vitamin B6 dioctanoate, Vitamin B2 or its derivatives, Vitamin B 12 Vitamin B 15Vitamin B compounds, including their derivatives; vitamin E compounds such as α-tocopherol, β-tocopherol, γ-tocopherol, and vitamin E acetate; vitamin D compounds, vitamin H, pantothenic acid, pantethine, pyrroloquinoline quinone, and other vitamins; antibacterial agents such as methylparaben and phenoxyethanol; physiologically active ingredients such as whitening agents, cell activators, skin roughness improvers, blood circulation promoters, and skin astringents;Cinnamic acid-based UV absorbers such as 2-ethylhexyl paramethoxycinnamate, isopropyl paramethoxycinnamate, diethanolamine paramethoxyhydrocinnamate, glyceryl mono-2-ethylhexanoate diparamethoxycinnamate, octyl methoxycinnamate, methyl diisopropylcinnamate, 2-hydroxy-4-methoxybenzophenone, 2-hydroxy-4-methoxybenzophenone-5-sulfate, sodium 2-hydroxy-4-methoxybenzophenone-5-sulfate, 2,4-dihydroxybenzophenone, 2,2'-dihydroxy-4 Benzophenone-based UV absorbers such as ,4'-dimethoxybenzophenone, 2,2'-dihydroxy-4-methoxybenzophenone, 2,2',4,4'-tetrahydroxybenzophenone, and 2-hydroxy-4-n-octoxybenzophenone; and benzoic acid-based UV absorbers such as para-aminobenzoic acid, ethyl para-aminobenzoate, butyl para-aminobenzoate, 2-ethylhexyl para-dimethylaminobenzoate, glyceryl para-aminobenzoate, octyl para-dimethylaminobenzoate, amyl para-aminobenzoate, and hexyl diethylaminohydroxybenzoyl benzoate. UV absorbers, salicylate-based UV absorbers such as 2-ethylhexyl salicylate, triethanolamine salicylate, homomenthyl salicylate, dipropylene glycol salicylate, methyl salicylate, ethylene glycol salicylate, phenyl salicylate, amyl salicylate, benzyl salicylate, isopropyl benzyl salicylate, potassium salicylate, 4-tert-butyl-4'-methoxydibenzoylmethane, 4-isopropyldibenzoylmethane, 4-methoxydibenzoylmethane, 4-tert-butyl-4'-hydroxydibenzoyl Dibenzoylmethane-based UV absorbers such as methane, menthyl-O-aminobenzoate, 2-phenyl-benzimidazole-5-sulfate, 2-phenyl-5-methylbenzoxazole, 3-(4-methylbenzylidene)camphor, 2-ethylhexyl-2-cyano-3,3-diphenylacrylate, 2-ethyl-2-cyano-3,3'-diphenylacrylate, 2-(2'-hydroxy-5-methylphenyl)benzotriazole, anthranilic acid-based UV absorbers such as menthyl anthranilate, and urocanic acid-based UV absorbers such as ethyl urocanate;UV absorbers such as triazine-based UV absorbers like bisethylhexyloxyphenol methoxyphenyl triazine and ethylhexyl triazone; UV scattering agents such as fine particle metal oxides of titanium dioxide, zinc oxide, zirconium oxide, and cerium oxide; Examples include: pH adjusters; polyethylene glycol, glycerin, 1,3-butylene glycol (BG), erythritol, sorbitol, xylitol, maltitol, propylene glycol, dipropylene glycol, diglycerin, isoprene glycol, polyhydric alcohols such as 1,2-pentanediol, 2,4-hexylene glycol, 1,2-hexanediol, and 1,2-octanediol; thickeners such as carboxyvinyl polymers; bulking agents such as magnesium sulfate; emulsifying stabilizers such as polyglyceryl pentastearate and sodium stearoyl lactylate; and solvents such as benzene, toluene, and tetrahydrofuran.

[0058] The dosage form of the cosmetic composition in the present invention is not particularly limited as long as it is a known form used as a cosmetic or topical dermatological medicine, but examples include oil-in-water emulsions and water-in-oil emulsions.

[0059] The method for producing the cosmetic composition in the present invention is not particularly limited, as long as it contains essential components within a specific range. The production method can appropriately employ known methods commonly used in the field of cosmetics, for example, by adding powder components to an oil-based mixture and a surfactant, mixing and dispersing them, and then adding a heated aqueous mixture to the oil-based mixture, emulsifying, and cooling.

[0060] The specific uses of the cosmetic composition in this invention are not particularly limited, but it is particularly suitable for makeup cosmetics such as foundations. Therefore, the cosmetic composition in this invention can be provided in the form of foundations, makeup bases, BB creams, CC creams, etc. In particular, the form of a cushion foundation is preferred. [Examples]

[0061] The present invention will be specifically described below with reference to examples, but these are merely illustrative examples of the present invention, and the scope of the present invention is not limited thereto.

[0062] <Example 1> The water-in-oil emulsion compositions (liquid foundations) of the examples and comparative examples were prepared according to the formulations shown in the table below. In other words, powder is added to an oil phase (oil-based) and surfactant that have been heated to 80°C, and then dispersed. The mixture was stirred. The aqueous phase (water system) and other components, which had been heated to 80°C, were added to the oil phase, and then cooled to 30°C to obtain a water-in-oil emulsion composition. This water-in-oil emulsion composition was filled into a container, a carrier was placed on top, and the carrier was impregnated with the water-in-oil emulsion composition to obtain the cushion foundations of Example and Comparative Examples 2 and 3. The water-in-oil emulsion composition was also filled into a tube to obtain the liquid foundation of Comparative Example 1.

[0063] As the pigment-coated plate-shaped powder, we used pigment-coated plate-shaped powder 1: titanium dioxide, alumina, and silica-coated plate-shaped talc (coated in the order of titanium dioxide, alumina, and silica; average particle size: 5-10 μm).

[0064] The cosmetics obtained above (cushion foundation, liquid foundation) were evaluated as follows. The cushion foundation was applied by taking it from the impregnated container onto a puff and applying it to the skin. The liquid foundation was applied by taking it from the tube onto a puff and applying it to the skin. The evaluation criteria and performance criteria used by the panel were as follows:

[0065] (Evaluation Criteria) Very good: 5 points Good: 4 points Average: 3 points Slightly poor: 2 points Defective: 1 point (Judgment criteria) Average score of 3.5 or higher: ◎ Average score between 1.5 and 3.5: ○ Average score less than 1.5: ×

[0066] <Film thickness (natural finish)> Each cosmetic product was subjected to actual use tests by a panel of cosmetic evaluation specialists (10 members). "Film thickness (natural Regarding the "quality of the finish," each panel member gave a 5-point rating according to the evaluation criteria above. The average score of the panel's ratings was calculated, and the evaluation was made according to the above criteria. The specific characteristics of each evaluation criterion are described in the table.

[0067] <Concealing ability> Each cosmetic product was subjected to a real-world usage test by a panel of cosmetic evaluation specialists (10 members). Each panel member evaluated the "concealing power" on a 5-point scale according to the evaluation criteria above. The average of the scores from all panels was calculated. The average score was calculated and judged according to the above criteria. The specific characteristics of each criterion are described in the table.

[0068] <Film texture (smoothness of feel, gloss)> Each cosmetic product was subjected to a real-world usage test by a panel of cosmetic evaluation specialists (10 members). Each panel member evaluated the "film texture (smoothness of feel, gloss)" upon application on a 5-point scale according to the evaluation criteria described above. The average score of all panel members was calculated and used to make a final judgment according to the evaluation criteria described above. The specific characteristics of each judgment criterion are described in the table.

[0069] The evaluation results are shown in the table below.

[0070] [Table 1]

[0071] The cosmetics of the present invention form a film thickness that provides a natural finish, have excellent opacity, and have a smooth texture and excellent gloss, with minimal film irregularities (Examples 1-5). Furthermore, when the mass ratio of component (A) to component (B) was used within a specific range, it was particularly excellent in terms of film thickness, opacity, and suppression of film irregularities (Example 1).

[0072] On the other hand, when the water-in-oil emulsion composition of Example 1 was used as a liquid foundation instead of a cushion foundation, and the composition was applied to the skin using a puff (Comparative Example 1), the suppression of film irregularities was insufficient, and the effects of the present invention could not be obtained. When the mass ratio of component (A) to component (B) did not meet the specified range (Comparative Example 2), the effects of the present invention could not be obtained in terms of film thickness, hiding power, or suppression of film irregularities. When the mass ratio of component (A) to component (B) did not meet the specified range (Comparative Example 3), although hiding power was present, the effects of the present invention could not be obtained in terms of film thickness or suppression of film irregularities.

[0073] Therefore, it can be seen that the cosmetic product of the present invention exhibits excellent effects. [Industrial applicability]

[0074] This invention can be used in cosmetics and the like.

Claims

1. (A) A composite powder in which a pigment powder is coated on the surface of a plate-shaped powder, (B) Extender pigments, and (C) Surfactants, Includes, Emulsified cosmetic composition in which the mass ratio of component (A) to component (B): (A) / (B) is 2 to 10, and A carrier impregnated with the aforementioned cosmetic, Cosmetics, including

2. The cosmetic according to claim 1, wherein the pigment powder in component (A) is at least one selected from titanium dioxide, aluminum oxide, silica, and iron oxide.

3. The cosmetic according to claim 1 or 2, wherein the plate-like powder in component (A) is at least one selected from the group consisting of talc, mica, sericite, and boron nitride.

4. The cosmetic according to any one of claims 1 to 3, wherein the content of ingredient (A) relative to the total cosmetic is 0.1 to 15.0% by mass.

5. The cosmetic according to any one of claims 1 to 4, wherein the extender pigment in component (B) is at least one selected from the group consisting of talc, silica, and organic beads.

6. The cosmetic according to any one of claims 1 to 5, wherein the content of ingredient (B) relative to the total cosmetic is 0.1 to 10.0% by mass.

7. The cosmetic according to any one of claims 1 to 6, wherein the surfactant in component (C) is at least one selected from the group consisting of polyether-modified silicone, polyglycerin-modified silicone, polyglycerin fatty acid ester, and sucrose fatty acid ester.

8. The cosmetic according to any one of claims 1 to 7, wherein the content of ingredient (C) relative to the total cosmetic is 0.5 to 10.0% by mass.

9. The cosmetic according to any one of claims 1 to 8, wherein the total powder content relative to the entire cosmetic is 0.2 to 30.0% by mass.

10. The cosmetic according to any one of claims 1 to 9, wherein the cosmetic is a water-in-oil emulsion cosmetic.

Images