Oil-in-water emulsified cosmetics

Abstract

The object of the present invention is to obtain an oil-in-water type cosmetic that can instantly show a skin lightening effect and has an excellent glossy makeup. The present invention provides an oil-in-water type emulsified cosmetic containing the following components (A) to (D): (A) an anionic surfactant, (B) an oil agent having a water holding capacity of 140% or more relative to its own weight, (C) phenyl-modified silicone, and (D) a higher alcohol having 12 to 22 carbon atoms.

Description

Technical Field

[0001] The present invention relates to an oil-in-water emulsified cosmetic. Background Art

[0002] In recent years, the purpose of women using skin care cosmetics has become more diverse. Cosmetics for moisturizing are not to mention cosmetics for whitening, brightening, anti-freckle and anti-wrinkle, and skin tightening. Among them, whitening and brightening are the effects that people of all ages seek, and many products mixed with various whitening active ingredients have been proposed. In the past, the whitening effect brought by the active ingredients gradually appeared through long-term continuous use of cosmetics mixed with whitening active ingredients, and it was difficult to feel the immediate whitening effect immediately after applying the cosmetics.

[0003] Therefore, in order to exhibit an instant skin lightening effect instead of an instant whitening effect, some methods have been proposed to impart whitening and skin lightening ingredients to cosmetic films through white pigments or powders such as titanium oxide or zinc oxide.

[0004] Prior art literature

[0005] Patent Literature

[0006] Patent Document 1: Japanese Patent Application No. 2005-526781 Summary of the invention

[0007] Problem that the invention aims to solve

[0008] The main object of the present invention is to provide an oil-in-water emulsified cosmetic material which can exhibit an instant skin-lightening effect and has an excellent glossy makeup feel.

[0009] Means used to solve problems

[0010] As skin care cosmetics, makeup primers have long been known. As the name suggests, makeup primers are water-in-oil emulsions that look like "vanish". When applied to the skin, they initially turn white and produce a moderate sense of friction resistance, then penetrate and disappear, and are characterized by a refreshing matte makeup feel (for example, see Patent Document 1). Most makeup primers contain higher fatty acids or higher alcohols, but if a large amount of these solid surfactants (auxiliary) agents are mixed, the interface of the emulsion droplets becomes hard, and although the stability of the emulsion is improved, a white residue is formed due to fading (vanishing), and the skin's gloss or penetration sense disappears, leaving a hard film feeling.

[0011] The present inventors have conducted in-depth research to solve the above-mentioned problems, focusing on the white residue when applying the primer, and further conducted in-depth research. As a result, it was found that an oil-in-water emulsion cosmetic prepared by combining at least four components: an anionic surfactant, a higher alcohol having 12 to 22 carbon atoms, an oil having a water holding capacity of 140% or more relative to its own weight, and a phenyl-modified silicone can solve the above-mentioned problems, thereby completing the present invention. In addition, the present inventors have also found that even if the oil-in-water emulsion cosmetic of the present invention does not contain a white pigment, it can still show an instant skin lightening effect. In addition, the present inventors have also found that as a more suitable method, it is possible to provide an oil-in-water emulsion cosmetic that shows an instant skin lightening effect and forms a soft makeup film with excellent glossy makeup.

[0012] That is, the present invention relates to an oil-in-water emulsified cosmetic comprising the following components (A) to (D).

[0013] (A) Anionic surfactant

[0014] (B) Oil with a water holding capacity of 140% or more relative to its own weight

[0015] (C) Phenyl-modified silicone

[0016] (D) Higher alcohols with 12 to 22 carbon atoms

[0017] The component (A) may contain one or more selected from the group consisting of fatty acid salts, N-acylmethyltaurine or its salts, and N-acylamino acids or its salts.

[0018] The component (B) may contain one or more selected from phytosteryl oleate, macadamia nut oil fatty acid phytosteryl ester, N-lauroyl-L-glutamate di(phytosteryl·2-octadecyl) ester, dipentaerythritol hexa(12-hydroxystearic acid / stearic acid / rosin acid) ester, and hydroxystearate cholesterol ester.

[0019] The component (C) may contain one or more selected from diphenyl dimethicone and diphenylsiloxyphenyl trimethicone.

[0020] The component (D) may contain one or more selected from cetearyl alcohol and behenyl alcohol.

[0021] Furthermore, as component (E), one or more selected from L-ascorbic acid 2-glucoside, nicotinamide (nicotinamide), and tranexamic acids may be contained.

[0022] The content of the component (D) may be less than 10% by mass.

[0023] Effects of the Invention

[0024] The oil-in-water emulsified cosmetic of the present invention can show an instant skin lightening effect and excellent glossy makeup. It should be noted that the effects of the present invention are not limited to the effects described here, and can be any effect described in this specification. DETAILED DESCRIPTION

[0025] Hereinafter, the preferred embodiment for implementing the present invention is described in detail, but the embodiment described below is used to show an example of a representative embodiment of the present invention, and the scope of the present invention should not be narrowly interpreted thereby. It should be noted that, unless otherwise specified, the percentages in this specification are expressed by mass. In addition, the upper limit (below) and lower limit (above) of each numerical range (~) can be arbitrarily combined as needed.

[0026] <1. Oil-in-water emulsified cosmetic of the present invention>

[0027] The present invention provides an oil-in-water emulsified cosmetic comprising the following components (A) to (D) or a mixture of these components.

[0028] (A) Anionic surfactant

[0029] (B) Water-holding oil with a water-holding capacity of 140% or more relative to its own weight

[0030] (C) Phenyl-modified silicone

[0031] (D) Higher alcohols with 12 to 22 carbon atoms

[0032] A composition comprising the above-mentioned (A) to (D) further mixed with a brightening component (E) can be provided.

[0033] <1-1. Component (A) Anionic Surfactant>

[0034] The anionic surfactant (A) used in the present invention is not particularly limited as long as it is an anionic surfactant commonly used in cosmetics. As the anionic surfactant (A), an anionic surfactant obtained by a known production method can be used, and a commercially available product can also be used.

[0035] Examples of the anionic surfactant of component (A) include soap bases, fatty acid salts (preferably higher fatty acid salts) such as stearates (e.g., Na), laurates (e.g., Na), and palmitates (e.g., Na); higher alkyl sulfate ester salts such as Na lauryl sulfate and K lauryl sulfate; alkyl ether sulfate ester salts such as POE lauryl sulfate triethanolamine and Na POE lauryl sulfate; N-acyl sarcosine such as Na lauroyl sarcosine; higher fatty acid amide sulfonic acids or salts thereof such as Na N-myristoyl-N-methyltaurine, Na coconut fatty acid methyltaurine, and Na stearoyl methyltaurine; phosphate ester salts such as Na POE oleyl ether phosphate and POE stearyl ether phosphate; di-2-ethylhexyl Sulfosuccinates such as sodium sulfosuccinate, sodium lauroylethanolamide polyoxyethylene sulfosuccinate, and sodium lauryl polypropylene glycol sulfosuccinate; alkylbenzene sulfonates such as sodium linear dodecylbenzene sulfonate, triethanolamine linear dodecylbenzene sulfonate, and linear dodecylbenzene sulfonic acid; higher fatty acid ester sulfates such as sodium hardened coconut fatty acid glycerol sulfate; acylamino acids (also called N-acylamino acids) or salts thereof (e.g., sodium) such as acylglutamic acid such as lauroyl glutamic acid, stearoyl glutamic acid, and myristoyl glutamic acid; α-olefin sulfonates, higher fatty acid ester sulfonates, secondary alcohol sulfates, higher fatty acid alkyl alcohol amide sulfates, sodium lauroyl monoethanolamide succinate, ditriethanolamine palmitoyl aspartate, and sodium caseinate. One or more selected from these may be used as appropriate.

[0036] The number of carbon atoms in the "higher fatty acid" or "alkyl group" in the component (A) is not particularly limited, and its suitable lower limit is preferably 10 or more carbon atoms, more preferably 12 or more carbon atoms, and its suitable upper limit is preferably 24 or less carbon atoms, more preferably 22 or less carbon atoms, and more preferably 12 to 24 carbon atoms, and further preferably 12 to 22 carbon atoms. The "higher fatty acid" or "alkyl group" may be any of linear, branched or cyclic, preferably linear, and may be any of saturated fatty acids or unsaturated fatty acids, preferably saturated fatty acids.

[0037] The N-acylmethyltaurine is not particularly limited, but is preferably one or more selected from coconut fatty acid methyltaurine, N-hexanoyl methyltaurine, N-lauroyl methyltaurine, N-myristoyl methyltaurine, N-palmitoyl methyltaurine, N-stearoyl methyltaurine and N-oleoyl methyltaurine, among which N-stearoyl methyltaurine is more preferred.

[0038] The "acyl group" of the N-acyl amino acid is not particularly limited, and is preferably derived from the "fatty acid" of the "fatty acid salt" or a mixed fatty acid thereof, more preferably derived from a straight-chain fatty acid or a mixed fatty acid of a straight-chain fatty acid, and the number of carbon atoms is preferably 12 to 24, more preferably 12 to 22.

[0039] As the acyl group in the N-acylamino acid, there can be mentioned a straight chain or branched aliphatic acyl group having 8 to 24 carbon atoms (preferably 12 to 22 carbon atoms). As the acyl group, more specifically, there can be mentioned, for example, a capryl group, a lauroyl group, a myristoyl group, a palmitoyl group, a stearoyl group, a coconut oil acyl group, a coconut oil fatty acid acyl group (an acyl group derived from coconut oil fatty acid), a palmitoyl fatty acid acyl group (an acyl group derived from palm oil fatty acid), etc., preferably one or more selected therefrom, more preferably a stearoyl group.

[0040] The "amino acid" part of the acylamino acid is not particularly limited, but is preferably one or more selected from glutamic acid, aspartic acid, etc., among which glutamic acid is preferred. In addition, the amino acid is preferably L-type.

[0041] Among the N-acylamino acids, N-acylglutamic acid or a salt thereof is more preferred, and N-stearoyl-L-glutamic acid is further preferred.

[0042] In addition, N-acylamino acid can be obtained by a known production method, for example, by polycondensing a chloride of a higher fatty acid with an amino acid (preferably glutamic acid).

[0043] Here, the "salt" used in the present invention may be an inorganic salt such as an alkali metal salt such as sodium, potassium, or an alkaline earth metal salt such as magnesium, calcium, or an organic salt such as an amine salt such as monoethanolamine, triethanolamine, or aminomethyl propanol, but is not limited to the examples and other substitutes may be used.

[0044] In addition, fatty acid salts or N-acylamino acid salts etc. may be neutralized in advance, or fatty acid or N-acylamino acid etc. and alkaline agents may be used as the blending components. One of them may be used or two or more may be used in combination. The alkaline agent may be a compound including an inorganic salt or an organic salt, and examples of the compound include hydroxides etc., but are not limited thereto.

[0045] In the present invention, component (A) is preferably one or more selected from fatty acid salts, N-acyltaurine or its salt, N-acylamino acid or its salt, etc., from the viewpoint of excellent durability of white residue during application and excellent softness of the cosmetic film, and fatty acid salts are more preferred. The component (A) preferably contains one or more of them, and more preferably contains at least fatty acid salts.

[0046] More specifically, from the viewpoint of white residue during application, softness of the cosmetic film, and skin gloss, component (A) is more preferably one or more selected from stearates, N-stearoylmethyltaurine or a salt thereof, and N-stearoylglutamic acid or a salt thereof, and among these, stearates are further preferred.

[0047] The content of component (A) in the present invention is not particularly limited. As the appropriate lower limit of the content of the component (A), from the viewpoint of good white residue during continuous application and improved emulsion stability, it is preferably 0.3% by mass (hereinafter referred to as "%) or more in the water-in-oil emulsion cosmetic, more preferably 0.5% or more, and further preferably 1.0% or more. In addition, from the viewpoint of better softness of the cosmetic film and good skin gloss, as the appropriate upper limit of the content of the component (A), it is preferably 5% or less in the water-in-oil emulsion cosmetic, more preferably 3.8% or less, further preferably 3% or less, further preferably 2.5% or less, and more preferably 2.2% or less. As the appropriate numerical range of the component (A), the water-in-oil emulsion cosmetic is preferably 0.3 to 5%, more preferably 0.5 to 3%.

[0048] It should be noted that the content of component (A) is a value calculated based on the mass (sodium salt conversion) when component (A) is a sodium salt compound. For example, the content or mass ratio of fatty acids or fatty acid salts can be calculated as the mass (sodium salt conversion) of fatty acid Na.

[0049] The content of one or more selected from fatty acid salts, N-acylmethyltaurine or its salt, N-acylamino acid or its salt in component (A) of the present invention is not particularly limited. In the oil-in-water emulsified cosmetic, the suitable lower limit is preferably 0.3% or more, more preferably 0.5% or more, and further preferably 1.0% or more. In addition, the suitable upper limit is preferably 5% or less, more preferably 3.8% or less, further preferably 3.5% or less, further preferably 3% or less, more preferably 2.5% or less, and further preferably 2.2% or less. This can improve the durability of white residue, the softness of the cosmetic film, and the skin gloss.

[0050] The content of the higher fatty acid salt (preferably stearate) in component (A) of the present invention is not particularly limited. In the oil-in-water emulsified cosmetic, the lower limit is preferably 0.3% or more, more preferably 0.5% or more, and further preferably 1.0% or more. In addition, the upper limit is preferably 5% or less, more preferably 3.8% or less, further preferably 3.5% or less, further preferably 3% or less, more preferably 2.5% or less, and further preferably 2.2% or less. This can improve the durability of the white residue, the softness of the cosmetic film, and the skin gloss.

[0051] <1-2. Component (B) Oil having a water holding capacity relative to its own weight of more than a prescribed value>

[0052] The component (B) used in the present invention is an oily agent that can hold water in an amount equal to or greater than its own weight (hereinafter also referred to as a "water-holding oily agent"), and is an oily agent having a water-holding capacity relative to its own weight of greater than a prescribed value from the viewpoint of better durability of the immediate white residue and better skin gloss.

[0053] The "water holding capacity relative to its own weight" in this specification refers to the ability of an oil agent to hold water (mass) equal to or greater than its own weight. The "water holding capacity (%) of an oil agent relative to its own weight" can be calculated in the following test method as [the amount of water added until the water is discharged from the sample (mass) / the oil agent's own weight (the mass of the initial sample)] × 100%. For example, when water is added to 1g of the oil agent and the amount of water retained is 1.4g, the water holding capacity relative to its own weight is 140% (the unit (%) may be omitted below).

[0054] In the present invention, the value (%) of "water holding capacity relative to its own weight" in the water-holding oil agent of component (B) can be determined by the following test method. For example, "a water-holding oil agent having a water holding capacity relative to its own weight of 140% or more" means that the value of "water holding capacity" is 140 or more according to the following test method.

[0055] <Test Method (Method for Determining Water Holding Capacity of Water-Bonding Oil Agent)>

[0056] Test method: In the present invention, as a water holding capacity test method for determining whether the sample can hold water (mass) equal to or greater than its own weight at 50°C, 20 g of the initial oil (initial sample) is weighed into a 200 mL beaker, heated to 50°C, and 50°C water is slowly added while stirring at 3000 rpm using a disperser until water is discharged from the sample. The maximum water mass (amount of water added) at which water is not discharged is measured, and the value is divided by the mass (20 g) of the oil (initial sample) and multiplied by 100 to calculate the "water holding capacity (%)".

[0057] More specifically, in the above test method, when the added water is visually observed to be repelled and rolled off on the stirred oil, it can be judged as the moment when "water is not discharged" changes to "water is discharged", and the addition of water is stopped at the moment of this change. After the end, the drainage (water) floating on the oil with the maximum water holding capacity (maximum water holding sample) is discarded. The mass of the oil with the maximum water holding capacity (maximum water holding sample) in the beaker from which the drainage (water) has been discarded is measured, and this mass can be used as the "maximum water mass without water discharge". It should be noted that this observation is not limited to visual observation, and can also be performed using an image sensor.

[0058] As the water-holding oil agent of component (B), it is preferred that the water-holding capacity relative to its own weight is a water-holding oil agent of a prescribed value or more. As the water-holding capacity, as a suitable lower limit, it is preferably 125% or more, more preferably 130% or more, and further preferably 140% or more. By making the water-holding oil agent of component (B) have a water-holding capacity of a prescribed value or more, the white residual feeling (durability) when the oil-in-water emulsion cosmetic is applied can be increased, and the skin gloss after application can be improved. In addition, as a suitable upper limit of the water-holding capacity relative to its own weight, there is no particular limitation, for example, 600% or less, preferably 510% or less, more preferably 350% or less, further preferably 220% or less, 210% or less, or 170% or less. The more suitable numerical range of the water-holding capacity relative to its own weight is more preferably 140 to 510% from the viewpoint of the persistence of the white residue during application, the improvement of the skin gloss, and the softness of the cosmetic film. More preferably, it is 140 to 350%, still more preferably, it is 140 to 220%, and still more preferably, it is 140 to 170%.

[0059] As the water-holding oil agent having a water-holding capacity relative to its own weight of component (B) of a prescribed value or more, oil agents that can be used for general cosmetics can be used, and examples thereof include vegetable oils, animal oils, and fatty acid ester compounds (e.g., ester compounds of fatty acids and one or more components having hydroxyl groups selected from higher alcohols, sterols, sugars, polyols, amino acids, and castor oil), and one or more selected from these can be appropriately used.

[0060] Specific examples of the water-holding oil agent having a water-holding capacity of at least a predetermined value relative to its own weight as the component (B) include castor oil, shea butter, beef tallow, N-acylamino acid esters, glycerol fatty acid esters, dimer acid esters, and dipentaerythritol fatty acid esters. One or more selected from these can be used appropriately.

[0061] More specifically, the water-holding oil agent having a water-holding capacity of the component (B) of at least a predetermined value relative to its own weight includes, for example, N-lauroyl-L-glutamate di(phytosterol / 2-octadecyl) ester, N-lauroyl-L-glutamate di(octadecyl) ester, N-lauroyl-L-glutamate di(cholesterol / octadecyl) ester, N-lauroyl-L-glutamate di(cholesterol / behenyl / octadecyl) ester, N-lauroyl-L-glutamate di(phytosterol / behenyl / octadecyl) ester and the like; hexaglycerol fatty acid ester, decaglycerol fatty acid ester, (adipic acid / 2-ethylhexanoic acid / stearic acid) glyceryl oligoester, stearic acid hydrogenated castor oil, hydroxy stearic acid; Glycerol fatty acid esters such as fatty acid hardened castor oil; dimer acid esters such as dimer linoleic acid (phytosteryl / isostearyl / cetyl / stearyl / behenyl) ester, dimer linoleic acid di(isostearyl / phytosterol), dimer linoleic acid dimer diisostearyl, etc.; dipentaerythritol fatty acid esters such as (12-hydroxystearic acid / stearic acid / rosin acid) dipentaerythritol ester, hexa(12-hydroxystearic acid / stearic acid / rosin acid) dipentaerythritol ester, (12-hydroxystearic acid / isostearyl) dipentaerythritol ester; fatty acid cholesterol esters such as isostearic acid cholesterol ester, hydroxystearic acid cholesterol ester, ricinoleic acid cholesterol ester, and sterol fatty acid esters such as fatty acid phytosterol esters such as macadamia oil fatty acid phytosterol, etc. One or more selected from these can be used appropriately.

[0062] Among the components (B), from the viewpoint of durability of the white residue during application, improvement of skin glossiness, and softness of the cosmetic film, it is preferred that one or more of the components (B) be selected from glycerol fatty acid esters, dipentaerythritol fatty acid esters, cholesterol fatty acid esters, and phytosterol fatty acid esters, and the component (B) preferably contains one or more of them.

[0063] Among component (B), in the present invention, from the viewpoint of excellent white residue during application and skin gloss after application, phytosteryl oleate (water holding capacity: 144), macadamia oil fatty acid phytosteryl ester (water holding capacity: 202), N-lauroyl-L-glutamate di(phytosteryl·2-octadecyl) ester (water holding capacity: 501), dipentaerythritol hexa(12-hydroxystearic acid / stearic acid / rosin acid) ester (water holding capacity: 336), and hydroxystearate cholesterol ester (water holding capacity: 169) are more preferred, and one or more selected from them can be used appropriately.

[0064] Among the component (B), in the present invention, phytosteryl oleate and / or macadamia nut oil fatty acid phytosteryl ester are preferred from the viewpoint of the durability of the white residue during application, the skin gloss after application, and the softness of the cosmetic film. The component (B) preferably contains phytosteryl oleate and / or macadamia nut oil fatty acid phytosteryl ester, and more preferably contains at least phytosteryl oleate.

[0065] As commercially available products of such component (B), when phytosteryl oleate is used, for example, Riceterol Ester (manufactured by TSUNO RICE FINE CHEMICALS Co., Ltd.), when macadamia oil fatty acid phytosteryl ester is used, for example, PLANDOOR MAS (manufactured by Nippon Seika Co., Ltd.), when N-lauroyl-L-glutamate di(phytosteryl / octadecyl) ester is used, for example, ELDEW PS-203 (manufactured by Ajinomoto Co., Ltd.), when dipentaerythritol hexa(12-hydroxystearic acid / stearic acid / rosin acid) ester is used, for example, COSMALL 168ARN (manufactured by Nisshin OilliO Group Co., Ltd.), and when cholesterol hydroxystearate is used, for example, SALACOS HS (manufactured by Nisshin OilliO Group Co., Ltd.) is used.

[0066] The content of component (B) in the present invention is not particularly limited. As the appropriate lower limit of the content of the component (B), from the perspective of maintaining the white residue during application for a long time, it is preferably 0.2% or more in the oil-in-water emulsion cosmetic, more preferably 0.3% or more, more preferably 0.4% or more, more preferably 0.5% or more, and more preferably 0.6% or more. In addition, as the appropriate upper limit of the content of the component (B), from the perspective of the softness of the cosmetic film, it is preferably 5.5% or less, more preferably 4.5% or less, more preferably 3.5% or less, more preferably 2.0% or less, and more preferably 1.5% or less in the oil-in-water emulsion cosmetic. As the appropriate numerical range of the component (B), in the oil-in-water emulsion cosmetic, it is more preferably 0.2 to 5.5%, and more preferably 0.4 to 3.5%. This can make the persistence of the white residue, the softness of the cosmetic film, and the skin gloss feel better.

[0067] The content of one or more selected from glycerol fatty acid ester, dipentaerythritol fatty acid ester, fatty acid cholesterol ester and fatty acid phytosterol ester in the component (B) is not particularly limited. In the oil-in-water emulsified cosmetic, the suitable lower limit is preferably 0.2% or more, more preferably 0.4% or more, and further preferably 0.8% or more. In addition, the suitable upper limit is preferably 5.5% or less, more preferably 3.5% or less, further preferably 2.0% or less, further preferably 1.5% or less, and more preferably 1.2% or less. This can improve the durability of the white residue, the softness of the cosmetic film, and the skin gloss.

[0068] The content of phytosteryl oleate or macadamia nut oil fatty acid phytosterol in the component (B) is not particularly limited, and each of them is preferably 0.1% or more, preferably 0.2% or more, more preferably 0.4% or more, and further preferably 0.5% or more in the oil-in-water emulsified cosmetic as a suitable lower limit, and preferably 5.5% or less, more preferably 3.5% or less, further preferably 2.0% or less, further preferably 1.5% or less, more preferably 1.0% or less, and more preferably 0.6% or less as a suitable upper limit. This can make the durability of white residue, the softness of the cosmetic film, and the skin glossiness better.

[0069] <1-3. Component (C) Phenyl-modified silicone>

[0070] The phenyl-modified silicone as the component (C) used in the present invention has a phenyl group in part of the polysiloxane and is blended for the purpose of imparting flexibility to the cosmetic film after application without reducing white residue (durability) during application.

[0071] Specific examples of the phenyl-modified silicone as component (C) include phenyl methylsiloxane, phenyl dimethicone, phenyl trimethicone, diphenyl dimethicone, diphenylsiloxyphenyl trimethicone, and trimethyl pentaphenyl trisiloxane, and one or more selected from these may be used as appropriate.

[0072] As commercially available products of the component (C) phenyl-modified silicone, for example, KF-54, KF-56, KF-54HV (all manufactured by Shin-Etsu Chemical Co., Ltd.) as diphenyl polydimethylsiloxane, PH-1555 HRI Cosmetic Fluid, FZ-3156 (all manufactured by Dow Corning Toray Co., Ltd.) as trimethyl pentaphenyl trisiloxane, etc., one or more selected from them can be used appropriately. In addition, the component (C) can also be obtained by a known production method.

[0073] Among the above-mentioned component (C), in the present invention, diphenyl dimethicone and / or diphenylsiloxyphenyl trimethicone are preferred from the viewpoint of durability of white residue during coating, and the component (C) preferably contains one or two of them.

[0074] The content of component (C) in the present invention is not particularly limited. As the appropriate lower limit of the content of the component (C), it is preferably 1% or more in the oil-in-water emulsified cosmetic, more preferably 2% or more, further preferably 3% or more, and further preferably 4% or more. In addition, as the appropriate upper limit of the content of the component (C), it is preferably 9.5% or less in the oil-in-water emulsified cosmetic, more preferably 9% or less, further preferably 8% or less, further preferably 7% or less, and more preferably 6% or less. As the appropriate numerical range of the component (C), it is more preferably 1 to 9% in the oil-in-water emulsified cosmetic, and further preferably 2 to 8%. This can make the durability of the white residue, the softness of the cosmetic film, and the skin gloss feel better.

[0075] The content of diphenyl polydimethylsiloxane and / or diphenyl siloxyphenyl polytrimethylsiloxane in the component (C) is not particularly limited. In the oil-in-water emulsified cosmetic, the suitable lower limit is preferably 1% or more, more preferably 2% or more, further preferably 3% or more, and further preferably 4% or more. In addition, the suitable upper limit is preferably 9% or less, more preferably 8% or less, further preferably 7% or less, and further preferably 6% or less. This can improve the durability of the white residue, the softness of the cosmetic film, and the skin gloss.

[0076] <1-4. Component (D) Higher Alcohol Having 12 to 22 Carbon Atoms>

[0077] The higher alcohol having 12 to 22 carbon atoms as component (D) used in the present invention is not particularly limited as long as it is a higher alcohol generally used in cosmetics. As the higher alcohol having 12 to 22 carbon atoms as component (D), a higher alcohol obtained by a known production method or a commercially available product can be used. The higher alcohol having 12 to 22 carbon atoms as component (D) can be a saturated higher alcohol not containing an unsaturated bond or an unsaturated higher alcohol.

[0078] As the higher alcohol having 12 to 22 carbon atoms of the component (D), specifically, for example, lauryl alcohol, myristyl alcohol, cetyl alcohol, stearyl alcohol, oleyl alcohol, linoleyl alcohol, and behenyl alcohol can be cited. In addition, cetearyl alcohol (a mixture of cetyl alcohol and stearyl alcohol) as a mixture of two alcohols can also be used. Behenyl alcohol having 22 carbon atoms and cetearyl alcohol as a mixture of two alcohols can be preferably used. One or more selected from these can be appropriately used.

[0079] In the present invention, in terms of the persistence of white residue during application, skin gloss, and softness of the cosmetic film, the component (D) is preferably one or more selected from cetyl alcohol, stearyl alcohol, cetearyl alcohol, and behenyl alcohol, and cetearyl alcohol is more preferred. The component (D) preferably contains one or more of them, and more preferably contains at least cetearyl alcohol.

[0080] The content of component (D) in the present invention is not particularly limited. As the appropriate lower limit of the content of the component (D), from the viewpoint of long-lasting white residue during application and good emulsion stability, it is preferably 0.1% or more in an oil-in-water emulsified cosmetic, more preferably 0.3% or more, more preferably 0.5% or more, further preferably 1% or more, and further preferably 1.5% or more. In addition, as the appropriate upper limit of the content of the component (D), from the viewpoint of the softness of the cosmetic film, it is preferably 8% or less in an oil-in-water emulsified cosmetic, more preferably 5% or less, further preferably 4% or less, and further preferably 3% or less in an oil-in-water emulsified cosmetic. As the appropriate numerical range of the component (D), it is more preferably 0.1 to 8% in an oil-in-water emulsified cosmetic, and further preferably 0.3 to 5%.

[0081] The content of one or more of cetyl alcohol, stearyl alcohol, cetearyl alcohol, and behenyl alcohol in the component (D) is not particularly limited. In the oil-in-water emulsified cosmetic, the suitable lower limit is preferably 0.1% or more, more preferably 0.3% or more, further preferably 0.5% or more, further preferably 1% or more, and further preferably 1.5% or more. In addition, the suitable upper limit is preferably 8% or less, more preferably 5% or less, further preferably 4% or less, and further preferably 3% or less. This can improve the durability of the white residue, the softness of the cosmetic film, and the skin gloss.

[0082] The content of cetearyl alcohol or behenyl alcohol in the component (D) is not particularly limited. In the oil-in-water emulsified cosmetic, the appropriate lower limit is preferably 0.3% or more, more preferably 0.5% or more, further preferably 0.8% or more, and further preferably 1% or more. In addition, the appropriate upper limit is preferably 4% or less, more preferably 3% or less, further preferably 2.5% or less or 2% or less. This can improve the durability of the white residue, the softness of the cosmetic film, and the skin gloss.

[0083] <1-5. Oil>

[0084] The oil used in the present invention refers to an oily substance that is liquid or solid at 25°C (for example, ester oil, wax, etc.).

[0085] As the oily agent, there is no particular limitation as long as it is an oily agent commonly used for skin external preparations or cosmetics. As the oily agent, for example, animal oil, vegetable oil, mineral oil, synthetic oil, hydrocarbons, greases, waxes, hardened oils, ester oils, silicone oils, fluorine-based oils, lanolin derivatives, and oil-soluble ultraviolet absorbers can be mentioned, and one or more selected from them can be appropriately used.

[0086] The "whole oil" in this specification refers to the total weight of the oil contained in the oil-in-water emulsion cosmetic, excluding surfactants such as component (A) anionic surfactant, component (B) oil having a water holding capacity relative to its own weight of a specified value or more, component (C) phenyl-modified silicone, and component (D) higher alcohol having 12 to 22 carbon atoms, and oils other than these components (B) to (D).

[0087] The total content of the oil in the oil-in-water emulsified cosmetic of the present invention, specifically the total content of the oil in the oil-in-water emulsified cosmetic, is not particularly limited, and as a suitable lower limit, it is preferably 0.01% or more, more preferably 0.05% or more, further preferably 0.1% or more, more preferably 0.5% or more, more preferably 1% or more, more preferably 3% or more, more preferably 5% or more, more preferably 8% or more, more preferably 9% or more, more preferably 10% or more, and as a suitable upper limit, it is preferably 20% or less, more preferably 17% or less, further preferably 15% or less, further preferably 14% or less, more preferably 13% or less, and as the suitable numerical range, it is preferably 0.01 to 20%, more preferably 8 to 15%. This can make the durability of white residue, the softness of the cosmetic film, and the skin gloss feel better.

[0088] <1-6. Mass ratio of each content>

[0089] <Mass ratio of [the component (B) / the entire oil agent]>

[0090] In the present invention, the content mass ratio or usage mass ratio of the component (B) relative to the entire oil agent ([the component (B) / the entire oil agent]) is not particularly limited. From the viewpoint of the persistence of white residue and glossiness, the more suitable lower limit is preferably 0.01 or more, more preferably 0.03 or more, further preferably 0.04 or more, further preferably 0.05 or more, further preferably 0.055 or more, and further preferably 0.06 or more. From the viewpoint of the softness of the cosmetic film, the more suitable upper limit is preferably 0.35 or less, more preferably 0.2 or less, further preferably 0.15 or less, further preferably 0.14 or less, further preferably 0.10 or less, more preferably 0.09 or less, and further preferably 0.08 or less. The suitable numerical range of [component (B) / the entire oil agent] is more preferably 0.01 to 0.35, and further preferably 0.05 to 0.10. This can make the persistence of white residue, the softness of the cosmetic film, and the skin glossiness more favorable.

[0091] <Content mass ratio of (the component (C) / 〔the component (A)+the component (D)〕)>

[0092] In the present invention, the content mass ratio or usage mass ratio (the component (C) / [the component (A)+the component (D)]) of (the total amount of the component (A) and the component (D)) relative to the component (C) is not particularly limited. From the viewpoint of the softness and glossiness of the cosmetic film, the more suitable lower limit is preferably 0.45 or more, more preferably 0.5 or more, further preferably 0.6 or more, further preferably 0.7 or more, further preferably 0.8 or more, further preferably 0.9 or more, further preferably 1.0 or more, further preferably 1.1 or more. From the viewpoint of the durability of the white residue, the more suitable upper limit is preferably 2.5 or less, more preferably 2.2 or less, further preferably 2.1 or less, further preferably 2.0 or less, more preferably 1.9 or less, more preferably 1.8 or less, more preferably 1.7 or less, more preferably 1.6 or less, and more preferably 1.5 or less. The preferred numerical range of the content mass ratio of (component (C) / [component (A) + component (D)]) is more preferably 0.4 to 2.5, and even more preferably 1.0 to 1.5. This can improve the durability of the white residue, the softness of the makeup film, and the skin gloss. It should be noted that the mass of "component (A)" in (component (C) / [component (A) + component (D)]) is obtained by sodium salt conversion as described above.

[0093] Furthermore, the oil-in-water emulsified cosmetic of the present invention is more preferably combined with the above [ingredient (B) / the whole oil agent] and the above (ingredient (C) / [ingredient (A) + ingredient (D)]) from the viewpoint of improving the durability of the white residue, the softness of the cosmetic film, and the skin glossiness. It is further preferred that the above [ingredient (B) / the whole oil agent] is 0.01 to 0.35 and the above (ingredient (C) / [ingredient (A) + ingredient (D)]) is 0.4 to 2.5.

[0094] <1-5. Optional ingredients>

[0095] In the oil-in-water emulsion cosmetic of the present invention, in addition to the above-mentioned components (A) to (D), components commonly used in skin external preparations may be appropriately contained, mixed or used within the range that does not impair the effect of the present invention. Such components include, for example, surfactants other than component (A), oils other than the above-mentioned components (B) to (D), water-soluble polymers, polyols, aqueous components such as lower alcohols, ultraviolet absorbers, antioxidants, antibacterial agents, preservatives, moisturizers, pH adjusters, cooling agents, powders, vitamins, beauty ingredients, fragrances, brightening ingredients, whitening active ingredients, etc., and one or more selected from them may be appropriately used.

[0096] The oil-in-water emulsified cosmetic of the present invention may contain, in addition to the above-mentioned components (A) to (D), one or more selected from L-ascorbic acid 2-glucoside, niacinamide and tranexamic acids as component (E). Since these have a brightening or whitening effect, a brightening component and / or a whitening active ingredient may be contained, mixed or used as component (E) in the oil-in-water emulsified cosmetic of the present invention.

[0097] The term "brightening ingredient" as used herein refers to a medicinal ingredient that brightens the skin, and the classification of brightening ingredients may include whitening active ingredients. Whitening active ingredients refer to compounds or ingredients that can whiten the skin, and are ingredients or compounds that can inhibit melanin production, prevent spots and freckles, etc. As brightening ingredients or whitening active ingredients, ingredients obtained by known manufacturing methods (such as synthetic ingredients, extracted ingredients, etc.) can be used, and commercially available products can also be used.

[0098] L-ascorbic acid 2-glucoside, which is the ingredient (E) used in the present invention, is a molecule in which one molecule of glucose is bonded to the 2-position of L-ascorbic acid, and is known to have a good whitening effect.

[0099] Nicotinamide, the component (E) used in the present invention, is an amide compound of niacin (vitamin B3 / nicotinic acid). Nicotinamide is a water-soluble vitamin and a well-known substance as one of the vitamin B group. It can be extracted from natural products (rice bran, etc.) or synthesized using a well-known method. Specifically, niacinamide included in the 17th revised edition of the Japanese Pharmacopoeia can be used.

[0100] Examples of the tranexamic acids of the component (E) used in the present invention include one or more selected from tranexamic acid and its derivatives, and these components have a whitening effect or an anti-inflammatory effect.

[0101] Tranexamic acid is a type of amino acid represented by trans-4-(aminomethyl)cyclohexane-1-carboxylic acid, and is known as a component having skin whitening and anti-inflammatory effects, and is sometimes used as a hemostatic agent.

[0102] In the present invention, a derivative of tranexamic acid may be used instead of tranexamic acid or in combination with tranexamic acid.

[0103] The derivatives of tranexamic acid include dimers of tranexamic acid (e.g., trans-4-(trans-aminomethylcyclohexanecarbonyl)aminomethylcyclohexanecarboxylic acid hydrochloride), esters of tranexamic acid and hydroquinone (e.g., trans-4-aminomethylcyclohexanecarboxylic acid 4'-hydroxyphenyl ester), esters of tranexamic acid and gentianic acid (e.g., 2-(trans-4-aminomethylcyclohexanecarbonyloxy)-5-hydroxybenzoic acid and its salts), amides of tranexamic acid (e.g., trans-4-aminomethylcyclohexanecarboxylic acid amide and its salts, trans-4-(p-methoxydibenzoyl)aminomethylcyclohexanecarboxylic acid and its salts, trans-4-guanidinoaminomethylcyclohexanecarboxylic acid and its salts), and alkyl esters of tranexamic acid and their salts.

[0104] Specific examples of the tranexamic acids include lauryl tranexamic acid, myristyl tranexamic acid, cetyl tranexamic acid, and stearyl tranexamic acid.

[0105] The derivative may be in the form of a salt, and examples thereof include mineral acid salts such as hydrochlorides, phosphates, sulfates, bromates, and nitrates; organic acid salts such as oxalates, lactates, and citrates; and carbonates.

[0106] Among the tranexamic acids, tranexamic acid is preferred as a whitening active ingredient for improving or inhibiting pigmentation.

[0107] The content of component (E) in the present invention varies depending on the effect of the active ingredient. In the oil-in-water emulsified cosmetic, the suitable lower limit is preferably 1% or more, particularly preferably 2% or more, and the suitable upper limit is preferably 10% or less, more preferably 9% or less, further preferably 8% or less, and further preferably 7% or less.

[0108] The content of one or more selected from L-ascorbic acid 2-glucoside, niacinamide and tranexamic acids in the component (E) is not particularly limited. In the oil-in-water emulsified cosmetic, the suitable lower limit is preferably 1% or more, more preferably 2% or more. In addition, the suitable upper limit is preferably 10% or less, more preferably 9% or less, further preferably 8% or less, and further preferably 7% or less.

[0109] The present invention can also provide an oil-in-water emulsified cosmetic that can instantly show a skin-lightening effect and has an excellent skin-glowing makeup feel as a first object, and can achieve the first object.

[0110] In order to obtain a skin lightening effect, the oil-in-water emulsified cosmetic of the present invention may contain or mix a powder such as a transparent powder with a good touch. In addition, the present invention has the excellent advantage of being able to immediately exhibit a skin lightening effect even if it does not contain or use a powder (especially a white pigment).

[0111] Therefore, the present invention can also provide an oil-in-water emulsified cosmetic material which can instantly show a skin-lightening effect without using a white pigment and has an excellent skin-glowing makeup feel as a second object, and can achieve the second object.

[0112] Examples of the “white pigment” include one or more selected from zinc oxide and titanium oxide. Zinc oxide and titanium oxide generally have the property of reflecting and / or scattering ultraviolet rays, and therefore are also called ultraviolet scattering agents.

[0113] Therefore, the content of white pigment in the oil-in-water emulsion cosmetic is preferably not more than 5%, more preferably not more than 3%, further preferably not more than 2%, and more preferably not more than 1%. In addition, according to the present invention, the content of white pigment in the oil-in-water emulsion cosmetic can be made substantially free of 0.5% or less, 0.1% or less, 0.05% or less, or 0.01% or less. This can improve the durability of white residue, the softness of the cosmetic film, and the skin gloss.

[0114] In addition, the present invention can also have a third purpose of providing an oil-in-water emulsified cosmetic material that can instantly show a skin-lightening effect even without using powder (especially white pigment), and that gives a soft makeup film-like makeup feel and excellent glossy makeup to the skin after application. The third purpose can be achieved by adjusting the various components and their contents.

[0115] Moreover, by achieving the third object, when the present invention is used on the skin, the white residue at the time of application is maintained for a long time to a certain extent, so that an immediate skin lightening effect can be exhibited. In addition, the white residue disappears by rubbing, but after disappearance, a soft makeup film-like makeup feeling and a skin glossy makeup feeling that can exhibit a skin lightening effect can be obtained.

[0116] In addition, the oil-in-water emulsified cosmetic of the present invention can exhibit an instant skin lightening effect, have a good feeling during use, and have excellent stability over time.

[0117] Furthermore, the oil-in-water emulsified cosmetic of the present invention contains, mixes or uses the components (A) to (D) and component (E) as a mixed component, thereby showing a white residue and a glossy feeling of makeup when used, and can instantly whiten or brighten the skin. Moreover, long-term or continuous use of the cosmetic can also exert a whitening effect or a brightening effect on the skin.

[0118] Therefore, the oil-in-water emulsified cosmetic of the present invention is suitable for use as a skin care cosmetic, and is more suitable for use as a whitening cosmetic or a brightening cosmetic. It should be noted that "brightening cosmetic" is generally a cosmetic that makes the skin look brighter, a cosmetic for brightening the skin, or a skin external preparation.

[0119] The method for producing the oil-in-water emulsion cosmetic of the present invention is not particularly limited, and the oil-in-water emulsion cosmetic can be prepared by a conventional method. For example, it can be obtained by mixing components (A) to (D) or components (A) to (E) and other optional additives as required, adding a substance obtained by mixing water and optional components as required to the mixture, and emulsifying.

[0120] The oil-in-water emulsified cosmetic of the present invention is not particularly limited, and as properties, liquid, gel, emulsion, paste, semisolid, solid can be cited. In addition, as product forms, massage materials, emulsions, creams, beauty essences, foundation, sunscreen and other skin cosmetics can be exemplified. Among them, by the white residue during coating, it is easy to actually feel the instant skin brightness, so the emulsion, cream or beauty essence applied to the face is an oil-in-water emulsified cosmetic that is easy to play the effect of the present invention. In addition, as its method of use, a method of taking an appropriate amount on the hand for use can be cited. In addition, the oil-in-water emulsified cosmetic of the present invention can be suitably used for oil-in-water emulsified compositions, skin external preparations, quasi-drugs, etc.

[0121] <2. Compositions, methods of use, etc. disclosed herein>

[0122] In addition, as another aspect of the present invention, the present disclosure provides an oil-in-water emulsion composition that can exhibit an instant skin-lightening effect and has an excellent glossy makeup feel by combining and mixing or using a component (B) a water-binding oil agent and a component (C) a phenyl-modified silicone in an oil-in-water emulsion composition using a component (A) anionic surfactant and a component (D) a higher alcohol having 12 to 22 carbon atoms.

[0123] It should be noted that in the description of the present disclosure, the description of components (A) to (E), oil agents, each content, each contained mass ratio, manufacturing method, each composition, each method, each term, etc. that are repeated in the description of the above-mentioned "1. Oil-in-water emulsified cosmetic of the present invention" is appropriately omitted, and the description of the above-mentioned "1. Oil-in-water emulsified cosmetic" is also applicable to the present embodiment and can be appropriately adopted. The content and the contained mass ratio can be used as the usage amount and the usage mass ratio. In addition, the oil-in-water emulsified composition of the present disclosure can be applied to oil-in-water emulsified cosmetics, etc.

[0124] The present disclosure can provide a method for instantly brightening the skin tone and / or a method for improving the glossiness of the skin by applying an oil-in-water emulsion composition containing the components (A) to (D) or the components (A) to (E) to the skin; a method for showing an instant skin brightening effect when applied, and further giving the skin a glossy look after application.

[0125] The use is not particularly limited, and it is preferably applied by spreading, rubbing or massaging. The application site is preferably one or more selected from the group consisting of face, wrist, neck, feet, etc. When the oil-in-water emulsion composition of the present disclosure is used, it can be removed by spreading, rubbing, massaging, etc., so there is an advantage that it does not need to be wiped off with non-woven fabrics such as cotton cloth or woven fabrics.

[0126] The present disclosure can provide a method for achieving instant skin lightening using an oil-in-water emulsion containing the components (A) and (D) and / or a method for improving the glossy makeup of the oil-in-water emulsion cosmetic by using the component (B) water-holding oil agent and the component (C) phenyl-modified silicone in an oil-in-water emulsion containing the components (A) and (D).

[0127] The present technology can also adopt the following configurations.

[0128] [1]

[0129] An oil-in-water emulsified cosmetic comprising the following components (A) to (D):

[0130] (A) Anionic surfactant

[0131] (B) Oil having a water holding capacity of 130% or more (more preferably 140% or more) relative to its own weight

[0132] (C) Phenyl-modified silicone

[0133] (D) Higher alcohols having 12 to 22 carbon atoms.

[0134] [2]

[0135] The oil-in-water emulsified cosmetic as described in [1] above, wherein the component (A) contains one or more selected from fatty acid salts (preferably fatty acids having 12 to 24 carbon atoms), N-acylmethyltaurine or its salts, and N-acylamino acids or their salts. More preferably, the component (A) contains at least a fatty acid salt. Further preferably, the component (A) contains one or more selected from stearates, N-stearoylmethyltaurine or its salts, and N-stearoylglutamic acid or its salts.

[0136] 〔3〕

[0137] The oil-in-water emulsion cosmetic as described in [1] or [2] above, wherein the component (B) contains one or more selected from the group consisting of phytosteryl oleate, macadamia nut oil fatty acid phytosteryl ester, N-lauroyl-L-glutamate di(phytosteryl·2-octadecyl) ester, dipentaerythritol hexa(12-hydroxystearic acid / stearic acid / rosin acid) ester, and hydroxystearate cholesterol ester.

[0138] [4]

[0139] The oil-in-water emulsified cosmetic according to any one of [1] to [3] above, wherein the component (C) contains one or more selected from diphenyl dimethicone and diphenylsiloxyphenyl trimethicone.

[0140] 〔5〕

[0141] The oil-in-water emulsified cosmetic as described in any one of [1] to [4] above, wherein the component (D) contains one or more selected from cetyl alcohol, stearyl alcohol, cetearyl alcohol and behenyl alcohol. The component (D) more preferably contains cetearyl alcohol and / or behenyl alcohol.

[0142] [6]

[0143] The oil-in-water emulsified cosmetic according to any one of [1] to [5] above, further comprising a brightening component (E).

[0144] 〔7〕

[0145] The oil-in-water emulsified cosmetic as described in the above [6], wherein the component (E) contains one or more selected from L-ascorbic acid 2-glucoside, niacinamide and tranexamic acids.

[0146] 〔8〕

[0147] The oil-in-water emulsified cosmetic according to any one of [1] to [7] above, wherein the content of the component (D) is less than 10% by mass.

[0148] 〔9〕

[0149] The oil-in-water emulsion cosmetic as described in any one of [1] to [8] above, wherein the content mass ratio of [the component (B) / the entire oil agent] is 0.01 to 0.35 and / or the content mass ratio of (the component (C) / [the component (A) + the component (D)]) is 0.4 to 2.5.

[0150] 〔10〕

[0151] The oil-in-water emulsified cosmetic according to any one of [1] to [9] above does not contain 5% or more of a white pigment.

[0152]

[11]

[0153] A method for instantly brightening the skin tone and / or enhancing the glossy makeup effect, comprising applying the oil-in-water emulsified cosmetic or the oil-in-water emulsified composition described in any one of [1] to

[10] to the skin. The application is preferably by spreading, rubbing or massaging.

[0154]

[12]

[0155] A composition or combination for instantly brightening skin tone and / or enhancing glossy makeup using an oil-in-water emulsion composition containing the component (A) and the component (D), which contains the component (B) a water-holding oil agent and the component (C) a phenyl-modified silicone.

[0156] 〔13〕

[0157] The component (B) water-binding oil and the component (C) phenyl-modified silicone, or their use, for producing a composition or combination for an oil-in-water emulsion composition containing the component (A) and the component (D) for instantly brightening the skin tone and / or enhancing the glossy makeup effect.

[0158]

[14]

[0159] The water-retaining oil agent of the component (B) and the phenyl-modified silicone of the component (C) or a mixed composition thereof for the oil-in-water emulsion composition containing the component (A) and the component (D) for instantly brightening the skin tone and / or enhancing the glossy makeup feeling. Or the use of the component (B) and / or the component (C) for the oil-in-water emulsion composition for instantly brightening the skin tone and / or enhancing the glossy makeup feeling.

[0160] Example

[0161] The present invention will be specifically described below with reference to Examples, but the present invention is not limited to these Examples, etc. In addition, unless otherwise specified, the content is expressed as % by mass relative to the cosmetic material containing the component.

[0162] Examples 1 to 24 and Test Examples 1 to 9: Emulsion

[0163] Emulsions of the compositions shown in Tables 1 to 3 were prepared by the following production method, and a: white residue during application, b: softness of the cosmetic film, and c: glossiness were evaluated by the following methods. The results are shown in Tables 1, 2, and 3.

[0164]

Table 1

[0165] Table 1 (mass %)

[0166]

[0167]

Table 2

[0168] Table 2 (mass %)

[0169]

[0170]

Table 3

[0171] Table 3 (mass %)

[0172]

[0173] (Manufacturing method: Examples 1 to 13 and Test Examples 1 to 7)

[0174] A: Components (1) to (19) are uniformly heated and dissolved at 70°C.

[0175] B: Components (20) to (22) are uniformly heated and dissolved at 70°C.

[0176] C: Add B to A at 70°C and stir.

[0177] D: Add (23) to (27) to C at room temperature and stir to obtain an emulsion.

[0178] (Manufacturing method: Examples 14 to 24 and Test Examples 8 to 9)

[0179] A: Components (1) to (11) are uniformly heated and dissolved at 70°C.

[0180] B: Components (12) to (14) are uniformly heated and dissolved at 70°C.

[0181] C: Add B to A at 70°C and stir.

[0182] D: Add (15) to (20) to C at room temperature and stir to obtain an emulsion.

[0183] It should be noted that the contents of stearic acid and N-stearoyl glutamic acid in Tables 1 to 3 are the masses without sodium. In addition, "A, B, C, D, E, oil" in the mixed component column in Tables 1 to 3 respectively represent component (A), component (B), component (C), component (D), component (E), and oil.

[0184] The water holding capacity (%) of phytosteryl oleate (water holding capacity: 144), macadamia nut oil fatty acid phytosteryl ester (water holding capacity: 202), hydroxystearate cholesterol ester (water holding capacity: 169), dipentaerythritol hexa(12-hydroxystearic acid / stearic acid / rosin acid) ester (water holding capacity: 336), N-lauroyl-L-glutamic acid di(phytosteryl·2-octadecyl) ester (water holding capacity: 501), hardened coconut oil (water holding capacity: 125), and vaseline (water holding capacity: 104) in Tables 1 to 3 can be determined by the above-mentioned "Test method (method for measuring the water holding capacity of water-holding oil agents)". Their water holding capacities are 100% or more, and therefore they are water-holding oil agents (oil agents that can retain water in an amount equal to or greater than their own weight).

[0185] In addition, commercial products were used as the water-holding oils in Tables 1 to 3. For example, Riceterol Ester (manufactured by TSUNO RICE FINE CHEMICALS) was used as "phytosteryl oleate (water holding capacity: 144)".

[0186] When calculating the mass ratio of [(C) / (A)+(D)] in Tables 1 to 3, the content of (A) is calculated by converting the content of sodium salt. For example, 0.3%, 1%, 2%, and 3.5% of stearic acid in Table 1 can be calculated as 0.32%, 1.08%, 2.16%, and 3.78%, respectively, based on the conversion of sodium salt ((molar mass 284.5+23.0) / molar mass 284.5=1.08).

[0187] The "total oil agent (total mass of the oil agent)" in [(B) / total oil agent] in Tables 1 to 3 is the total mass of component (B), component (C) and component (D) and the oil agent other than these components (B) to (D), and the oil agent does not contain component (A) and surfactant.

[0188] (Evaluation method 1)

[0189] (a. White residue during coating)

[0190] Apply a cherry-sized amount of the preparation (about 2 g) to the inner side of the forearm, blend the preparation from the base of the palm to the elbow at a constant speed (one round trip per second), and use a stopwatch to measure the time it takes for the preparation to spread white instead of immediately blending into the skin.

[0191] <Judgment Criteria>

[0192] (Judgment): (Evaluation)

[0193] ◎: White color remains for more than 5 seconds: Very good

[0194] ○: White remains for 2 to 5 seconds: Good

[0195] △: White residue for 1 to 2 seconds: Slightly poor

[0196] ×: White residue lasts less than 1 second: Poor

[0197] More specifically, a cherry-sized amount of the preparation (about 2 g) is placed on the skin of the inner side of the forearm, and the panelists who are applying the preparation apply it back and forth with their palms at a constant speed (one back and forth per second) between the base of the palm and the elbow (the depression on the inner side of the arm opposite the elbow) to blend it in. By applying the preparation back and forth, the preparation does not blend into the skin at first but spreads out in white, so the skin looks fair, and with further application, the white residue (white) of the preparation disappears. The panelists who are making the white residue judgment judge that the preparation is "fused" when the white residue disappears. The panelists who are making the white residue judgment uses a stopwatch to measure the period (time) from the moment the panelists who are making the application start applying to the moment the preparation blends into the skin through application, and uses this time as the white residue time during application, and evaluates the white residue during application according to the above-mentioned <Judgment Criteria>.

[0198] (Evaluation method 2)

[0199] Ten experts were selected from women aged 20 to 49 who were trained in sensory evaluation according to certain criteria to form a panel to conduct the evaluation. The panel applied each sample to the forearm and evaluated the softness of the makeup mask felt during use and the skin gloss after application into 5 levels using the following absolute evaluation and scored. In terms of the softness and gloss of the makeup mask, the average value of each sample was calculated from the scores of all the panelists and judged according to the following 4-level judgment criteria.

[0200] (b: Softness of cosmetic film)

[0201] <Absolute Evaluation Criteria>

[0202] (Rating): (Evaluation)

[0203] 5 points: No film hardness after coating is felt

[0204] 4 points: Slightly feel that there is no film hardness after coating

[0205] 3 points: Average (neither good nor bad)

[0206] 2 points: Slightly felt film hardness after coating

[0207] 1 point: The film hardness after coating is felt

[0208] <4-level judgment criteria> (the same applies to the following evaluation items)

[0209] (Judgment): (Average score)

[0210] ◎: Above 4.5 points: Very good

[0211] ○: 3.5 points or more and 4.5 points or less: Good

[0212] △: More than 1.5 points and less than 3.5 points: Slightly poor

[0213] ×: 1.5 points or less: Poor

[0214] It should be noted that no film hardness after application means that the cosmetic film is soft and has no hardness; slightly feeling no film hardness means that the cosmetic film feels slightly soft. Slightly feeling film hardness means that the cosmetic film feels slightly hard; feeling film hardness means that the cosmetic film feels hard. Soft film feeling means the softness of the cosmetic film.

[0215] (c: Glossiness)

[0216] <Absolute Evaluation Criteria>

[0217] (Rating): (Evaluation)

[0218] 5 points: Feel the skin is radiant

[0219] 4 points: The skin feels slightly radiant

[0220] 3 points: Average (neither good nor bad)

[0221] 2 points: Almost no skin radiance

[0222] 1 point: No skin radiance

[0223] According to the results of Tables 1 to 3, the emulsions of Examples 1 to 24 are superior to the emulsions of Test Examples 1 to 9 in terms of immediate white residue, softness of the cosmetic film after application, and glossiness. Moreover, in the emulsions of Examples 1 to 24 (oil-in-water emulsified cosmetics), the white residue lasts long after application and can well show the effect of instantly brightening the skin tone. After further application, the white residue disappears, forming a good and soft cosmetic film, showing a good glossy makeup. At this time, when using the emulsions of Examples 1 to 24, there is no need to use non-woven fabrics or woven fabrics such as cotton cloth to wipe off the makeup.

[0224] On the other hand, Test Example 1 (Comparative Example 1) not containing the component (A) was inferior in terms of immediate white residue (whitening effect, skin lightening effect).

[0225] Test Example 2 (Comparative Example 2) in which a mixture of vaseline having a water holding capacity of 104% relative to its own weight and 125% of hardened coconut oil was used instead of the water-holding oil agent of component (B) of Example 1 was inferior in terms of immediate white residue and glossiness. Considering Example 1, Test Example 2 and Example 8, the present inventors believe that it is very important to contain or use an oil agent having a water holding capacity of 120% or more, more preferably 140% or more relative to its own weight in the water-holding oil agent in order to exhibit an immediate white residue.

[0226] In Test Example 3 (Comparative Example 3), in which a silicone oil having no phenyl group was used instead of the phenyl-modified silicone of component (C), no immediate white residue was produced, and the immediate skin-lightening effect was poor.

[0227] Test Example 4 (Comparative Example 4) not containing the component (D) was inferior in terms of immediate white residue.

[0228] In addition, the immediate white residue of Test Example 5 was very good, and the glossiness was slightly poor, but the effect of brightening the skin tone was generally achieved. The immediate white residue of Test Example 7 was very good, and the glossiness was also very good.

[0229] Furthermore, as can be seen from the results in Tables 1 and 2, Examples 1 to 24 have good immediate white residue and glossiness, can exhibit a skin-lightening effect, and can form a soft makeup film, thus also providing a good feeling during use.

[0230] Therefore, as long as the oil-in-water emulsion cosmetic contains component (A) anionic surfactant, component (B) water-holding oil agent with a water holding capacity of 125% or more relative to its own weight, component (C) phenyl-modified silicone, and component (D) higher alcohol having 12 to 22 carbon atoms, it is possible to obtain an effect that can show an immediate skin lightening effect and an excellent glossy makeup effect.

[0231] The white residue, soft film feel, and glossiness of Examples 1 and 14 were very excellent over time.

[0232] In Examples 1, 9 and 10, stearate, N-stearoyl glutamate and N-stearoyl methyl taurate are suitable as component (A), and stearate is particularly suitable. In addition, the content of component (A) is preferably 0.32% to 3.78%.

[0233] In Examples 1 and 8, as component (B), suitable are phytosteryl oleate, macadamia oil fatty acid phytosteryl ester, N-lauroyl-L-glutamic acid di(phytosteryl·2-octadecyl) ester, hexa(12-hydroxystearic acid / stearic acid / rosin acid) dipentaerythritol ester, hydroxystearate cholesterol ester, and these are oils with a water holding capacity of 140% or more and 340% or less. In addition, as can be seen from Examples 1 to 7 and 11, phytosteryl oleate and / or macadamia oil fatty acid phytosteryl ester are more suitable, and it is further preferred to contain at least phytosteryl oleate. As for the content of component (B), as can be seen from Examples 1, 14, 17 and 18, it is considered that it is more preferably 0.2 to 5.5%.

[0234] As can be seen from Examples 1, 3 and 12, diphenyl dimethicone and / or diphenylsiloxyphenyl trimethicone are suitable as component (C). As can be seen from Examples 1, 14, 19 and 20, the content of component (C) is more preferably 2 to 9%.

[0235] As can be seen from Examples 1, 13, 21, and 22, cetearyl alcohol and / or behenyl alcohol are suitable. As can be seen from Examples 1, 14, 22, and 23, the content of component (D) is more preferably 0.3 to 5%.

[0236] From Examples 1, 14, 6, 7, and 18, it is understood that the mass ratio of [the component (B) / the entire oil] is more preferably 0.01 to 0.35, and further preferably 0.05 to 0.1.

[0237] From Examples 1, 14, 5, and 19, it can be seen that the mass ratio of [the component (A) + the component (D)] is more preferably 0.4 to 2.5, and further preferably 1.0 to 1.5.

[0238] Furthermore, according to Examples 1 to 24, even if a brightening component and a whitening active ingredient are contained, the immediate white residue and the skin glossiness are good, so that an immediate skin brightening effect can be exhibited, and the brightening effect and the whitening effect can be expected by long-term use of the oil-in-water emulsified cosmetic. Therefore, by using the oil-in-water emulsified cosmetic of the present invention, even if the user pursues immediate skin brightening, the expectation can be met, and the expectation of improving or maintaining the skin brightness by long-term use can also be met.

[0239] Formula Example 1: Oil-in-water emulsion beauty serum

[0240] (Ingredients): (mass %)

[0241] (1) Sodium N-stearoyl methyl taurine: 0.8

[0242] (2) Phospholipids: 0.2

[0243] (3) Macadamia nut oil fatty acid phytosteryl esters: 0.5

[0244] (4) Hexa(hydroxystearic acid / stearic acid / rosin acid) dipentaerythritol ester: 0.5

[0245] (5) Polydimethylsiloxane: 1

[0246] (6) (Dimethicone / Vinyl Dimethicone) Crosspolymer: 1.2

[0247] (7) Meadow Foam Oil: 1

[0248] (8) PG dicaprate: 8

[0249] (9) Diphenyl polydimethylsiloxane: 4

[0250] (10) Cetearyl alcohol: 1.5

[0251] (11) Purified water: residual amount

[0252] (12) Glycerol: 5

[0253] (13) Xanthan gum: 0.02

[0254] (14) Carrageenan: 0.01

[0255] (15) Gellan gum: 0.01

[0256] (16) (Acrylates / Alkyl Acrylate (C10-30) Crosspolymer: 0.1

[0257] (17) Sodium hydroxide: 0.03

[0258] (18) Tranexamic acid: 2

[0259] (19) L-ascorbic acid 2-glucoside: 2

[0260] (20) L-serine: 0.05

[0261] (21) L-arginine: 0.01

[0262] (22) Hydrolyzed hyaluronic acid: 0.01

[0263] (23) Ethylhexylglycerin: 0.2

[0264] (24) Ethanol: 5

[0265] (Manufacturing method)

[0266] A: Components (1) to (10) were uniformly mixed and dissolved at 70°C.

[0267] B: Components (11) to (12) were uniformly mixed and dissolved at 70°C.

[0268] C: Add B to the above A and emulsify at 70°C.

[0269] D: After cooling the above C to 40°C, components (13) to (24) are added and mixed uniformly to obtain a beauty serum.

[0270] The oil-in-water emulsion-type beauty serum of Formulation Example 1 obtained in the above manner was excellent in durability of white residue during application, softness of the makeup film, and glossiness.

Claims

1. An oil-in-water emulsified cosmetic comprising the following ingredients (A) to (D): (A) an anionic surfactant in an amount of 0.3 to 5% by mass; (B) an oil having a water holding capacity of 140% or more relative to its own weight in an amount of 0.2 to 5.5% by mass; (C) 2 to 9.5% by mass of phenyl-modified silicone; and (D) a higher alcohol having 12 to 22 carbon atoms in an amount of 0.1% by mass or more and less than 10% by mass; in, The content mass ratio of the component (C) / [the component (A)+the component (D)] is 0.6 or more and 2.5 or less, The mass ratio of the component (B) to the entire oil agent is 0.01 to 0.

35.

2. The oil-in-water emulsified cosmetic according to claim 1, wherein The component (A) contains one or more selected from the group consisting of fatty acid salts, N-acylmethyltaurine or its salts, and N-acylamino acids or their salts.

3. The oil-in-water emulsified cosmetic according to claim 1 or 2, wherein The component (B) contains one or more selected from the group consisting of phytosteryl oleate, macadamia nut oil fatty acid phytosteryl ester, N-lauroyl-L-glutamate di(phytosteryl 2-octadecyl) ester, dipentaerythritol hexa(12-hydroxystearic acid / stearic acid / rosin acid) ester, and hydroxystearate cholesterol ester.

4. The oil-in-water emulsified cosmetic according to claim 1 or 2, wherein The component (C) contains one or more selected from diphenyl dimethicone and diphenylsiloxyphenyl trimethicone.

5. The oil-in-water emulsified cosmetic according to claim 1 or 2, wherein The component (D) contains one or more selected from cetearyl alcohol and behenyl alcohol.

6. The oil-in-water emulsified cosmetic according to claim 1 or 2, further comprising, as component (E), one or more selected from L-ascorbic acid 2-glucoside, niacinamide, and tranexamic acids.

7. The oil-in-water emulsified cosmetic according to claim 1 or 2, wherein The water holding capacity of the oil agent relative to its own weight is 170% or less.

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