KR102292346B1 - Oil-in-water emulsion cosmetic for skin - Google Patents

Abstract

The following components (a) to (e): (a) powder; (b) a compound selected from the group consisting of lecithin, a polymer or copolymer containing a phosphorylcholine group as a component, an amino acid, an acylated amino acid, and a polyoxyethylene palm oil fatty acid glyceryl; (c) a film forming agent selected from the group consisting of polyvinyl acetate and polyvinyl alcohol; (d) polyhydric alcohols; and (e) an oil-in-water emulsified cosmetic for skin containing water and an oil-in-water emulsified cosmetic for skin that further contains a solid oil as the component (f), which is a cosmetic film with a high makeup lasting effect, yet can be easily removed with warm water, etc. , is a skin cosmetic that satisfies mutually contradictory properties.

Description

Oil-in-water emulsified cosmetics for skin {OIL-IN-WATER EMULSION COSMETIC FOR SKIN}

The present invention relates to an oil-in-water emulsified cosmetic for skin that can be easily removed with warm water while being able to form a cosmetic film having high affinity with the skin and a high makeup lasting effect. More specifically, it contains a powder, a specific compound, one or two or more film forming agents selected from polyvinyl acetate and polyvinyl alcohol, a polyhydric alcohol, and water, so that a flexible cosmetic with high affinity on the skin It relates to an oil-in-water emulsified cosmetic for skin to improve the cosmetic lasting effect by forming a film, or to provide the cosmetic film with ease of erasing in hot water.

Conventionally, many types of cosmetics have been used for makeup, but in recent years, with changes in women's lifestyle, cosmetics that can put on makeup in a short time have been widely supported. As an example of such a cosmetic, it is known that it is an all-in-one item that combines a serum, a base, and a foundation, called BB cream (Blemish Balm), and the demand is increasing.

In addition, such a shortening of makeup is required not only when applying makeup, but also when removing makeup. That is, if the makeup film can be removed only by washing the face with warm water or the like, the time to remove the makeup can be shortened and, at the same time, the advantage of reducing irritation to the skin when removing the makeup is obtained. come.

By the way, cosmetics of a type that can remove makeup in a short time with warm water or water are already well known in mascara, and there is an increasing demand for film type mascara that can be easily removed with warm water. The function is becoming one of the basic functions of mascara.

Conventional mascara, which can be removed with warm water, etc., is a combination of a hydrophobic film-forming polymer and a heat transfer agent, or a polymer containing polyvinyl alcohol and (meth)acrylic acid as structural units, N-vinylpyrrolidone and a double bond in the molecule. It is a combination of a copolymer of monomers, a technique for reconciling the effect of maintaining makeup with the effect of erasing with water or hot water (for example, refer to Patent Documents 1 and 2), or cross-linked with a polymer film forming agent having a different glass transition temperature. It uses the technique (for example, patent document 3) etc. which combine the polymer film forming agent and form the film which can be removed favorably with durability and warm water.

However, these are mainly techniques for mascara, and are not as easily applicable to other cosmetics, for example, cosmetics for skin. That is, in the case of application to fibrous substances such as eyelashes or eyelashes, and in the case of application to the skin, the amount of application and the application tool are different and the state of the cosmetic film is different. When applied, the makeup film becomes too strong, causing tightness, and changes in facial expression cannot be followed. there is a problem that

On the other hand, Patent Document 4 published after the priority date of the present application discloses a base cosmetic for skin that is removed with warm water. However, since it basically does not contain powder and is a base cosmetic used before application of a makeup cosmetic, it is clearly different from the present invention.

JP 2002-29922 A JP 2006-257052 A JP (Japanese special order) 2010-535224 A WO 2014058048 A

As described above, a shorter time is required to remove makeup, but in general skin cosmetics, in order to increase the makeup lasting effect, if the hydrophobicity of the cosmetic is increased, it is difficult to remove it with hot water, etc. On the contrary, if the hydrophilicity of the entire cosmetic is increased, While the ease of erasing is improved, there is a problem of inhibiting the makeup lasting effect and the formation of a uniform cosmetic film on the skin.

Accordingly, it is an object of the present invention to provide a cosmetic composition for easy washing with water that satisfies the mutually contradictory properties that it is a cosmetic film with a high makeup lasting effect and can be easily removed with warm water or the like.

In view of the above problems, the present inventors have conducted intensive research on cosmetics for skin, and as a result, powder and film former alone are very inferior in terms of cosmetic film formation on the skin and makeup lasting effect. It was found that, by using and containing a specific compound, a polyhydric alcohol, and water, a flexible cosmetic film having a high cosmetic lasting effect and high skin affinity and ease of erasing in warm water could also be provided.

More specifically, by using a film-forming agent that is not too hydrophobic and easily compatible with water, a cosmetic film with less stickiness and uniformity is obtained, and further, by combining a specific film-forming agent with a specific compound. , it is possible to adjust the affinity of the powder or oil agent with the skin, and also to form a uniform cosmetic film to improve the makeup lasting effect. It was found that this excellent, dry finish was obtained. Furthermore, when another cosmetic was applied after application of this oil-in-water emulsified cosmetic for skin, it was found that the cosmetic lasting effect of the cosmetic was also improved, and the cosmetic used after application was also removed with warm water at the same time.

The present invention has been completed based on the above findings, and is an oil-in-water emulsified cosmetic for skin comprising the following components (a) to (e):

(a) powder

(b) a compound selected from the group consisting of lecithin, a polymer or copolymer containing a phosphorylcholine group as a component, an amino acid, an acylated amino acid, and a polyoxyethylene palm oil fatty acid glyceryl

(c) a film forming agent selected from the group consisting of polyvinyl acetate and polyvinyl alcohol

(d) polyhydric alcohols

(e) water.

Moreover, this invention is the said oil-in-water emulsified cosmetic for skin which is easy to wash with water.

Moreover, this invention is the said oil-in-water emulsion cosmetic for skin whose mass ratio of content of the polyhydric alcohol of the said component (d) and the water of a component (e) is 1:5 to 1:1.

Further, the present invention is the above oil-in-water emulsified cosmetic for skin which further contains a solid oil, particularly, a solid oil having a melting point of 30 to 50°C as component (f).

The oil-in-water emulsified cosmetic for skin of the present invention achieves both the formation of a flexible cosmetic film having a high cosmetic lasting effect and high affinity to the skin, and the ease of erasing the cosmetic film in warm water.

In addition, the oil-in-water emulsified cosmetic for skin of the present invention is moist and provides a feeling of use with good spread, forms a uniform cosmetic film, has a natural covering effect, and has a dry finish.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a view schematically showing an apparatus used for evaluation of ease of washing in the present invention;
Fig. 2 is a view showing the configuration of a rotational vibration (vibration) member of the apparatus of Fig. 1;
It is a figure which showed the structure of the test sample used for evaluation of water washing|cleaning easiness.

In the present specification, ease of washing refers to the property of being easily washed off from the skin with warm water at about 35°C, that is, the property that it can be easily washed off by an action such as washing with hot water having a water temperature of 35°C or higher. means Whether or not it has this easiness of washing can be judged by the ΔL value of 10 or more by the evaluation method (2)/physical test of Examples described later.

The oil-in-water emulsified cosmetic for skin of the present invention (hereinafter referred to as "oil-in-water skin cosmetic") contains the following components (a) to (e):

(a) powder

(b) a compound selected from the group consisting of lecithin, a polymer or copolymer containing a phosphorylcholine group as a component, an amino acid, an acylated amino acid, and a polyoxyethylene palm oil fatty acid glyceryl

(c) a film forming agent selected from the group consisting of polyvinyl acetate and polyvinyl alcohol

(d) polyhydric alcohols

(e) water.

Among the constituent components of the oil-in-water skin cosmetic of the present invention, as the powder of component (a), if it is a powder generally used in cosmetics, circular, plate-like, needle-like, mist-like, fine particles, pigment-grade particles, etc. It does not specifically limit by the particle structure of diameter, porosity, nonporous, etc., Inorganic powders, bright powders, organic powders, dye powders, metal powders, composite powders, etc. are mentioned.

More specifically, white inorganic pigments such as titanium oxide, cerium oxide, and barium sulfate; colored inorganic pigments such as iron oxide, carbon black, titanium/titanium oxide sintered product, chromium oxide, chromium hydroxide, royal blue, and ultramarine blue; Talc, mica, synthetic mica, sericite (sericite), synthetic sericite, kaolin, silicon carbide, bentonite, smectite, silicic anhydride, aluminum oxide, magnesium oxide, zirconium oxide, diatomaceous earth, aluminum silicate, aluminum magnesium metasilicate, calcium silicate white sieving powders such as barium silicate, magnesium silicate, calcium carbonate, magnesium carbonate, hydroxyapatite, and boron nitride; Titanium oxide coated mica, titanium oxide coated bismuth oxychloride, iron oxide mica titanium, blue mica titanium, carmine treated mica titanium, bismuth oxychloride, young foil, polyethylene terephthalate, aluminum, epoxy laminate, polyethylene terephthalate, polyolefin laminated film Bright powder, such as a horse, polyethylene terephthalate-polymethyl methacrylate laminated|multilayer film powder; synthetic resin powders such as polyamide-based resins, polyethylene-based resins, polyacrylic resins, polyester-based resins, fluorine-based resins, cellulose-based resins, polystyrene-based resins, and styrene-acrylic copolymer resins; organic polymer resin powder such as polypropylene resin and urethane resin; organic low molecular weight powders such as zinc stearate and N-acylysine; natural organic powders such as silk powder and cellulose powder; Organic pigment powders such as Red No. 201, Red No. 202, Red No. 205, Red No. 226, Red No. 228, Orange No. 203, Orange No. 204, Blue No. 404, Yellow No. 401, Red No. 3, Red No. 104, Red Organic pigment powders, such as zirconium, barium, or aluminum lake, such as No. 106, Orange No. 205, Yellow No. 4, Yellow No. 5, Green No. 3, and Blue No. 1; metal powders such as aluminum powder, gold powder, and silver powder; Composite powder of mica titanium fine particle titanium oxide-coated mica, barium sulfate-coated mica titanium, titanium oxide containing silicon dioxide, etc. are mentioned.

Among these, titanium oxide, iron oxide, barium sulfate, titanium oxide-coated mica, talc, mica, synthetic mica, sericite (sericite), and synthetic sericite are used for the formation of a uniform cosmetic film, natural coverage, and smooth finish. it is preferable to have

As the powder of these components (a), one or two or more thereof can be used, and if necessary, a fluorine-based compound, a silicone-based compound, a metal soap, collagen, a hydrocarbon, a higher fatty acid, a higher alcohol, an ester, a wax, a beeswax, an interface Using an activator, etc., or the component (b) mentioned later, you may surface-treat by a well-known method, or you may use what was compounded further.

The content of the powder of the component (a) in the oil-in-water skin cosmetic of the present invention is not particularly limited, but in terms of moist and smooth spread, natural and uniform coverage, and cosmetic retention effect, 1 to 40% by mass (hereinafter It is preferable that it is only expressed as "%"), and more preferably 5% to 35%.

In addition, the component (b) used in the oil-in-water skin cosmetic of the present invention is selected from the group consisting of lecithin, a polymer or copolymer containing a phosphorylcholine group as a constituent component, an amino acid, an acylated amino acid, and a polyoxyethylene palm oil fatty acid glyceryl. is a compound that becomes

The component (b) is not particularly limited as long as it is a compound having affinity for water and skin, and is generally used in cosmetics, and any of them can be used.

Among the component (b), examples of the lecithin include natural lecithin extracted from animals and plants such as egg yolk, soybean, corn, and microorganisms such as Escherichia coli, hydrogenated products thereof, and synthetic lecithin.

Specific examples of lecithins include natural phospholipids such as phosphatidylcholine, phosphatidylethanolamine, phosphatidylserine, phosphatidylinositol, lysophosphatidylcholine, sphingomyelin, egg yolk lecithin, soybean lecithin; synthetic lecithins such as dilauroylphosphatidylcholine, dimyristoylphosphatidylcholine, dipalmitoylphosphatidylcholine, distearoylphosphatidylcholine, dioleoylphosphatidylcholine, and palmitoyloleoylphosphatidylcholine; and hydrogenated lecithins such as hydrogenated soybean lecithin, hydrogenated egg yolk lecithin, hydrogenated phosphatidylcholine, and hydrogenated phosphatidylserine.

Among these, hydrogenated lecithin is preferable from the viewpoint of uniformity of a cosmetic film and ease of erasing in warm water, since it has moderate skin adhesion and dispersibility in water.

In the component (b), as a polymer or copolymer containing a phosphorylcholine group as a component (hereinafter referred to as "phosphorylcholine polymer"), for example, a monomer in which a phosphorylcholine group is bonded to methacrylic acid. A polymer and a copolymer with a hydrophobic monomer are also mentioned.

Specific examples of the phosphorylcholine-based polymer include a homopolymer of 2-methacryloyloxyethyl phosphorylcholine or a copolymer of 2-methacryloyloxyethyl phosphorylcholine and a hydrophobic monomer. Among these, in the case of a copolymer with a hydrophobic monomer, although the kind of hydrophobic monomer is not specifically limited, It is preferable that they are styrene, acrylic acid ester, and methacrylic acid ester. It is preferable that it is 5000 or more, and, as for the molecular weight of the copolymer with a hydrophobic monomer, 10000 or more are more preferable. Moreover, as for the structural molar ratio of 2-methacryloyloxyethyl phosphorylcholine and a hydrophobic monomer, the range of 50:50-97:3 is preferable.

Commercially available products of these phosphorylcholine-based polymers include 2-methacryloyloxyethyl phosphorylcholine homopolymers, Lipidure-HM, Lipidure-HM-500, and Lipidure-HM-600 (all manufactured by NOF CORPORATION). ) et al., as copolymers of 2-methacryloyloxyethyl phosphorylcholine and butyl methacrylate, include Lipidure-PMB, Lipidure A, Lipidure C, Lipidure NA, Lipidure-NR (all manufactured by Nichiyu Corporation). can Among these, a copolymer of 2-methacryloyloxyethyl phosphorylcholine and butyl methacrylate is preferable from the viewpoint of uniformity of a cosmetic film and ease of erasing in warm water, since it has moderate skin adhesion and hydrophilicity. .

In the component (b), amino acids include theanine, glycine, alanine, valine, isoleucine, threonine, leucine, histidine, tryptophan, serine, threonine, aspartic acid, glutamic acid, asparagine, glutamine, lysine, hydroxylysine, hydroxyproline. , arginine, cystine, cysteine, methionine, phenylalanine, tyrosine, proline, ornithine, citrulline, and the like. Among these, theanine is preferable in terms of the uniformity of the cosmetic film and the ease of erasing in warm water.

Furthermore, in the component (b), the acylated amino acid refers to an amino group constituting an amino acid in which hydrogen of a hydroxyl group is substituted with an acyl group, and in the present invention, Al, Mg, Ca, Zn, Zr and Ti salts thereof are included. will be. In this invention, the N-acylamino acid which substituted the amino group is preferable.

In the said acylamino acid, as an acyl group used for hydrogen substitution, a C8-30 fatty acid residue is preferable, For example, 2-ethylhexanoic acid residue, a capric acid residue, a lauric acid residue, a myristic acid residue. , palmitic acid residues, stearic acid residues, behenic acid residues, isopalmitic acid residues, isostearic acid residues, oleic acid residues, linoleic acid residues, linolenic acid residues, and the like. On the other hand, the amino acid to be substituted may include those listed above.

Examples of the acylated amino acid include N-acylglutamic acid, N-acylysine, N-acylmethylglycine, N-acylmethylalanine, and Al, Mg, Ca, Zn, Zr and Ti salts thereof, Examples of the acyl group include residues such as capric acid, lauric acid, myristic acid, palmitic acid, stearic acid, oleic acid, and isostearic acid.

Specific examples of the N-acylamino acid of component (b) include, for example, N-lauroylglutamic acid, N-hexanoylglutamic acid, N-oleylglutamic acid, N-myristonoylglutamic acid, N-palmitoylglutamic acid, N -stearoylglutamic acid, N-lauroyl lysine, N-hexanoyl lysine, N-oleyl lysine, N-myristonoyl lysine, N- palmitoyl lysine, N-stearoyl lysine, etc. are mentioned. Among these N-acylamino acids, N-acylglutamic acid is preferable from the viewpoint of uniformity of the cosmetic film and ease of erasing in warm water, and in particular N-stearylglutamic acid, its Al, Mg, Ca, Zn, Zr and Ti salts. This is preferable.

In the component (b), polyoxyethylene palm oil fatty acid glyceryl is obtained by addition polymerization of ethylene oxide to palm fatty acid glyceryl. Specifically, for example, in the INCI name (International Nomenclature Cosmetic Ingredient labeling names), palm oil fatty acid PEG-7 glyceryl, PEG-30 glyceryl cocoate, PEG-40 glyceryl cocoate, PEG-78 glyceryl cocoate , PEG-80 glyceryl cocoate, and palm fatty acid PEG-10-PPG-2 glyceryl obtained by addition polymerization of ethylene oxide and propylene oxide. Among these polyoxyethylene palm oil fatty acid glyceryl, it is preferable that the average degree of polymerization of ethylene oxide is 4-16 from the point of the uniformity of a cosmetic film, and the easiness of erasing in warm water.

These components (b) can use 1 type, or 2 or more types as needed. In addition, the content of component (b) in the oil-in-water type skin cosmetic is not particularly limited, but is preferably 0.001 to 8%, and 0.01 to 5% is moist spread, uniformity of the cosmetic film, makeup lasting effect, easy removal in warm water It is preferable in terms of

In addition, the component (b) may be formulated separately from the component (a). However, when the powder of the component (a) is surface-treated with the component (b), the powder of the component (a) has good adhesion to the skin. Since hydrophilicity can be imparted, it is preferable to further improve the uniformity of the cosmetic film, the makeup lasting effect, and the easiness of erasing in warm water.

As a method for surface-treating component (a) with component (b), there is no particular limitation, and a known method can be used, and a surface treatment agent and a surface treatment agent in a solvent (eg, water, alcohol, hydrocarbon, and mixtures thereof) After adding the powder particles to be treated, stirring or ball milling, washing and filtration are repeated as necessary to remove contaminants, and then drying and pulverizing to obtain a surface-treated powder. Moreover, it is also possible to mix the powder of component (a) and component (b) in advance within the manufacturing process of a cosmetic, and to surface-treat it simply. Furthermore, it is also possible to use a commercially available product after surface treatment in advance.

In addition, if necessary, components other than component (b) can also be used for surface treatment of component (a) together with component (b). MONOSILIOL C (manufactured by EXSYMOL), a mixture of palm oil fatty acid PEG-8 glyceryl), and dimethyldiarylammonium chloride/acrylamide copolymer (ME Polymer 09W (manufactured by Toho Chemical Co., Ltd.)) surface treatment of the component (a) by Moreover, the method of treating the surface of component (a) with aluminum hydroxide etc., and then processing with component (b) is also mentioned.

Moreover, among the component (c) used in the oil-in-water skin cosmetic of the present invention, the polyvinyl alcohol is not particularly limited, and any polyvinyl alcohol can be used as long as it meets the regulations of polyvinyl alcohol of the Quasi-Drug Raw Material Standard 2006. The INCI name includes polyvinyl alcohol, and as a commercial item, for example, PVA-205, PVA-217, Clarepoval PVA124 (above, manufactured by Kurare Corporation), PVA-EG25, PVA-EG40, PVA-GL05S , PVA-EG05 (above, Nippon Kosei Chemicals Co., Ltd. product), etc. can be illustrated.

In the component (c), the polyvinyl acetate is not particularly limited as long as it meets any of the regulations of polyvinyl acetate, polyvinyl acetate liquid, and polyvinyl acetate emulsion in the quasi-drug raw material standard 2006, and is not particularly limited. have. As for the INCI name, polyvinyl acetate is mentioned.

As said polyvinyl acetate, the polymer emulsion which disperse|distributed this in the aqueous solvent can be used. As a commercial item of this polymer emulsion, Viniburan GV-5651 (vinyl acetate polymer, solid content 35% emulsion, Nisshin Chemical Co., Ltd. product) etc. are mentioned, for example. It is preferable that the polymer emulsion of vinyl acetate used for this invention uses water as a medium, and that the solid content concentration is 30 to 60 %.

These components (c) can use 1 type or 2 or more types as needed. In addition, the content of component (c) in the oil-in-water skin cosmetic is not particularly limited, but in terms of smooth use, uniform cosmetic film formation, easy removal in warm water, and long-lasting makeup effect, from 0.05 to solid content 5% is preferable, and 0.1 to 3% is more preferable.

In addition, as the polyhydric alcohol of the component (d) used in the oil-in-water skin cosmetic of the present invention, for example, ethylene glycol, propylene glycol, trimethylene glycol, 1,2-butylene glycol, tetramethylene glycol, 1,3- dihydric alcohols such as butylene glycol, 2,3-butylene glycol, and pentamethylene glycol; trihydric alcohols such as glycerin, trimethylolpropane, and 1,2,6-hexanetriol; tetravalent alcohols such as pentaerythritol; pentahydric alcohols such as xylitol; hexavalent alcohols such as sorbitol and mannitol; polyhydric alcohol polymers such as diethylene glycol, dipropylene glycol, triethylene glycol, polypropylene glycol, and polyglycerol; divalent alcohol alkyl ethers such as ethylene glycol monomethyl ether, ethylene glycol monoethyl ether, ethylene glycol monobutyl ether, ethylene glycol diethyl ether, and ethylene glycol dibutyl ether; divalent alcohol alkyl ethers such as diethylene glycol monomethyl ether, diethylene glycol monoethyl ether, and diethylene glycol monobutyl ether; dihydric alcohol ether esters such as ethylene glycol monomethyl ether acetate and propylene glycol monomethyl ether acetate; glycerin monoalkyl ethers such as batyl alcohol; and sugar alcohols such as sorbitol, meltitol, maltotriose, mannitol, sucrose, erythritol, fructose, maltose, xylitol, and starch decomposed sugar reducing alcohol. Among them, 1,3-butylene glycol and dipropylene glycol are preferable in terms of smooth and moist feel and uniformity of the cosmetic film.

These components (d) can use 1 type or 2 or more types as needed. In addition, the content of component (d) in the oil-in-water type skin cosmetic is not particularly limited, but forms a flexible and uniform cosmetic film with a high cosmetic lasting effect and excellent skin affinity, and is easy to erase in hot water. In terms of making it excellent, it is preferably 1.5 to 35%, more preferably 3 to 30%.

Furthermore, the water of the component (e) used in the oil-in-water skin cosmetic of the present invention constitutes the outer case of the oil-in-water emulsified cosmetic for skin of the present invention. As this component (e), in addition to purified water, when using a polymer emulsion as component (c), water constituting this, aloe vera, witch hazel extract (hamamelis virginiana), hamamelis, cucumber, lemon, Plant extracts such as lavender and rose may be used.

Although the compounding quantity of the component (e) used for the oil-in-water skin cosmetic of this invention is not specifically limited, 15 to 75 % is preferable, and 20 to 70 % is more preferable.

Moreover, it is preferable to combine the polyhydric alcohol of a component (d) with the water of a component (e) within a fixed range. That is, the mass ratio of the content of the component (d) and the component (e) in that the cosmetic lasting effect is high, the skin affinity is excellent, and a flexible and uniform cosmetic film is formed, and at the same time, the ease of erasing in hot water is excellent. is preferably 1:5 to 1:1.

In addition to each of the essential components described above, in the present invention, a solid oil may be contained as the component (f) as needed. By blending this component (f), the points of the makeup lasting effect and the natural covering effect are particularly improved.

As the solid oil of the component (f), in addition to the component (b), an oily component in a solid form at 25° C. can be used without particular restrictions. Examples of the component (F) include hydrocarbons such as ceresin wax, polyethylene wax, Fischer-Tropsch wax, paraffin wax, microcrystalline wax, ozokerite wax, and ethylene propylene copolymer; oils and fats such as wax; waxes such as beeswax, carnauba wax, candelilla wax, spermaceti, and montan wax; amino acid-based emulsions such as cholesterol fatty acid ester and N-lauroyl-L-glutamic acid di(cholesteryl, behenyl, octyldodecyl); fatty acids such as stearic acid, lauric acid, myristic acid, and behenic acid; higher alcohols such as stearyl alcohol, cetyl alcohol, lauryl alcohol and behenyl alcohol; silicone oils such as silicone wax; Rosin acid pentaerythritol ester, 12-hydroxystearic acid, palmitic acid dextrin, palmitic acid/2-ethylhexanoic acid dextrin, stearic acid dextrin, sucrose stearic acid ester, sucrose palmitic acid ester, octanoic acid dextrin , dextrin fatty acid esters such as palmitic acid/dextrin stearate, dextrin oleate, dextrin isopalmitate, and dextrin isostearate; sucrose stearic acid ester, sucrose fatty acid ester of acetic acid stearic acid sucrose; Aluminum isostearate, calcium stearate, etc. are mentioned.

Among these, the use of solid oil having a melting point of 35 to 50° C. as the component (f) is preferable because it spreads more smoothly, the uniformity of the cosmetic film is improved, and the easiness of erasing in warm water is also improved. Examples of such solid oil include sucrose acetate and alkyl-modified dimethicone as silicone wax. Moreover, as an example of the commercial item of alkyl-modified dimethicone, BELSIL SDM 5055 VP (made by Asahi Kasei Wakka Silicone Co., Ltd.), 2503 Cosmetic Wax (made by Toray Dow Corning), etc. are mentioned. .

These components (f) can use 1 type, or 2 or more types as needed. The content of the component (f) in the oil-in-water skin cosmetic is not particularly limited, but is preferably 0.05 to 6%, more preferably 0.1 to 2%. By adding the component (f) in this range, a smoother feeling of use and excellent makeup lasting effect and excellent in ease of erasing in warm water are obtained.

In the oil-in-water skin cosmetic of the present invention, in addition to the essential components of the above (a) to (e) and the above component (f) blended as necessary, in the range that does not interfere with the effects of the present invention, an oily component, an interface Active ingredients, water-based ingredients, UV absorbers, moisturizers, antioxidants, cosmetic ingredients, preservatives, pigments, fragrances, etc., other ingredients commonly formulated in cosmetics can be blended.

Among these, as an oily component, in addition to the components (b) and (f) used for this invention, the liquid oil agent normally used for cosmetics which is liquid at 25 degreeC can be used without restriction|limiting in particular. Examples of the oily component include oil agents such as hydrocarbons, oils and fats, ester oils, higher alcohols, silicone oils, fluorine oils, and lanolin derivatives regardless of their origin, such as animal oil, vegetable oil, or synthetic oil. Specifically, hydrocarbons such as liquid paraffin, heavy liquid isoparaffin, α-olefin oligomer, squalane, polyisobutylene, and polybutene, oils and fats such as olive oil, castor oil, and macadamian nut oil, jojoba oil, and adipic acid Isobutyl, 2-hexyldecyl adipate, di-2-heptylundecyl adipate, alkyl glycol monoisostearate, isocetyl isostearate, trimethylolpropane triisostearate, di-2-ethylhexanoic acid Ethylene glycol, 2-ethylhexanoate cetyl, di-2-ethylhexanoic acid neopentyl glycol, tri-2-ethylhexanoic acid trimethylolpropane, tetra-2-ethylhexanoic acid pentaerythritol, 2-ethylhexanoic acid cetyl , oleyl oleyl, octyldodecyl oleate, decyl oleate, neopentyl glycol dicaprate, triethyl citrate, 2-ethylhexyl succinate, isocetyl stearate, butyl stearate, diisopropyl sebacate, dicaprate di- 2-ethylhexyl, cetyl lactate, myristyl lactate, isopropyl palmitic acid, 2-ethylhexyl palmitic acid, 2-hexyldecyl palmitic acid, 2-heptylundecyl palmitic acid, dipentaerythritol fatty acid ester, Isononyl isononanoate, isotridecyl isononanoate, isopropyl myristate, isopropyl palmitate, 2-octyldodecyl myristate, 2-hexyldecyl myristate, myristyl myristyl, di Hexyldecyl methyl octanoate, ethyl laurate, hexyl laurate, N-lauroyl-L-glutamic acid-2-octyldodecyl ester, diisostearyl malate, glyceryl triisooctanoate, triisostearic acid Glyceryl, diisostearate diglyceryl, triisostearate diglyceryl, tetraisostearate diglyceryl, decaisostearate decaglyceryl, triisopalmitic acid glyceryl, trimyristic acid glyceryl, U.S. Esters such as isostearic acid diglyceryl lysate and tritridecyl trimellitic acid; , fatty acids such as oleic acid, higher alcohols such as oleyl alcohol and isostearyl alcohol, dimethylpolysiloxane, methylphenylpolysiloxane, decamethyl silicone oils such as cyclopentasiloxane, octamethylcyclotetrasiloxane, and fluorine-modified silicone; fluorine oils such as perfluoropolyether; lanolin derivatives such as lanolin, lanolin acetate, lanolin fatty acid isopropyl, and lanolin alcohol; , These can be used 1 type or 2 or more types.

Moreover, as surfactant other than component (b), if it is surfactant generally used for cosmetics, any, such as a nonionic surfactant, an anionic surfactant, a cationic surfactant, an amphoteric surfactant, can be used.

Among these, nonionic surfactants include, for example, glycerin fatty acid ester and its alkylene glycol adduct, polyglycerol fatty acid ester and its alkylene glycol adduct, propylene glycol fatty acid ester and its alkylene glycol adduct, sorbitan fatty acid esters and alkylene glycol adducts thereof, fatty acid esters of sorbitol and alkylene glycol adducts thereof, polyalkylene glycol fatty acid esters, sucrose fatty acid esters, polyoxyalkylene alkyl ethers, polyoxyethylene alkylphenyl ethers, Polyoxyethylene hydrogenated castor oil, alkylene glycol adduct of lanolin, polyoxyalkylene alkyl co-modified silicone, polyether modified silicone, etc. are mentioned.

Examples of the anionic surfactant include inorganic and organic salts of fatty acids such as stearic acid and lauric acid, alkylbenzene sulfate, alkylsulfonate, α-olefinsulfonate, dialkylsulfosuccinate, α-sulfonated fatty acid salt , N-methyl-N-alkyl taurine salt, polyoxyethylene alkyl ether sulfate, polyoxyethylene alkyl phenyl ether sulfate, alkyl phosphate, polyoxyethylene alkyl ether phosphate, polyoxyethylene alkyl phenyl ether phosphate, ο- Alkyl-substituted malate, alkylsulfosuccinate, etc. are mentioned.

Examples of the cationic surfactant include alkylamine salts, polyamines and alkanolamine fatty acid derivatives, alkyl quaternary ammonium salts, and cyclic quaternary ammonium salts, and examples of the amphoteric surfactant include amino acid type and betaine type carboxylic acid. type, sulfuric acid ester type, sulfonic acid type, phosphoric acid ester type, for example, N,N-dimethyl-N-alkyl-N-carboxylmethylammonium betaine, N,N-dialkylaminoalkylene carboxylic acid, N,N,N-trialkyl-N-sulfoalkyleneammonium betaine, N,N-dialkyl-N,N-bis(polyoxyethylene sulfate)ammonium betaine, 2-alkyl-1-hydroxyethyl- 1-carboxymethyl imidazolinium betaine etc. are mentioned.

In addition, as an aqueous component, things other than a component (d) and a component (e) can be used. Examples of the aqueous component include alcohols such as ethyl alcohol, and water-soluble polymers, such as xanthan gum, guar gum, sodium condoitin sulfate, sodium hyaluronate, gum arabic, sodium alginate, and carrageenan; Semi-synthetic compounds such as methyl cellulose, hydroxyethyl cellulose, and carboxymethyl cellulose; synthetic carboxyvinyl polymers, alkyl-added carboxyvinyl polymers, polyvinyl pyrrolidone, sodium polyacrylate, sodium polyacrylate copolymer, polyacrylamide, etc. can be heard of

Further, examples of the ultraviolet absorbent include salicylic acids such as homomentyl salicylate, octyl salicylate, and triethanolamine salicylate; PABA type|system|groups, such as para-amino benzoic acid, ethyl dihydroxypropyl para- amino benzoic acid, glyceryl para amino benzoic acid, octyl dimethyl para amino benzoic acid, para dimethyl amino benzoic acid amyl, and para dimethyl amino benzoate 2-ethylhexyl; 4-(2-β-glucopyranosiloxy)propoxy-2-hydroxybenzophenone, dihydroxydimethoxybenzophenone, dihydroxydimethoxybenzophenone sodium disulfonate, 2-hydroxy- 4-Methoxybenzophenone, 2-hydroxy-4-methoxybenzophenone-5-sulfuric acid, 2,2'-dihydroxy-4-methoxybenzophenone, 2,4-dihydroxybenzophenone, 2 , benzos such as 2'4,4'-tetrahydroxybenzophenone, 2,2'-dihydroxy-4,4'-dimethoxybenzophenone, and 2-hydroxy-4-N-octoxybenzophenone phenone; Ethylhexyl methoxycinnamate (alias; octyl paramethoxycinnamate), mono-2-ethylhexanoate glyceryl diparamethoxycinnamate, methyl 2,5-diisopropyl cinnamate, 2,4,6-tris[4] -(2-ethylhexyloxycarbonyl)anilino]-1,3,5-triazine, trimethoxycinnamate methylbis(trimethylsiloxy)silylisopentyl, paramethoxycinnamate isopropyl diisopropylcin cinnamic acids such as namic acid ester mixtures and p-methoxyhydrocinnamic acid diethanolamine salts; benzoylmethanes such as 2-phenyl-benzimidazole-5-sulfuric acid, 4-isopropyldibenzoylmethane, and 4-tert-butyl-4'-methoxydibenzoylmethane; 2-Cyano-3,3-diphenylpropane-2-enoic acid 2-ethylhexyl ester (alias; octocrylene), dimethoxybenzylidenedioxoimidazolidinepropionic acid 2-ethylhexyl, 1-(3, 4-dimethoxyphenyl)-4,4-dimethyl-1,3-pentanedione, cinoxate, methyl-O-aminobenzoate, 2-ethylhexyl-2-cyano-3, 3-diphenyl Acrylate, 3-(4-methylbenzylidene)camphor, octyltriazone, 4-(3,4-dimethoxyphenylmethylene)-2,5-dioxo-1-imidazolidinepropionic acid 2-ethyl hexyl, polymer derivatives thereof, and silane derivatives, and these may be used alone or in combination of two or more depending on the purpose.

Further, examples of the moisturizing agent include urea, hyaluronic acid, chondroitin sulfate, and pyrrolidone carboxylate, and examples of the antiseptic and antibacterial agent include paraoxybenzoic acid ester, benzoic acid, sodium benzoate, sorbic acid, potassium sorbate, phenoxyethanol, salicylic acid, Phenolic acid, sorbic acid, parachloromethacresol, hexachlorophene, benzalkonium chloride, chlorhexidine chloride, trichlorocarbanilide, photosensitizer, isopropylmethylphenol, etc. are mentioned.

Examples of the antioxidant include tocopherol, butylhydroxyanisole, dibutylhydroxytoluene, and the like. Examples of the pH adjuster include lactic acid, lactic acid salt, citric acid, citrate, glycolic acid, succinic acid, tartaric acid, malic acid, potassium carbonate, sodium hydrogen chloride, ammonium hydrogen carbonate, and the like. , As a chelating agent, sodium edetate salt, sodium polyphosphate, sodium metaphosphate, phosphate, hydroxyethane diphosphone, etc., as a cooling agent, L-menthol, camphor, peppermint oil, peppermint oil, eucalyptus oil, etc., as an anti-inflammatory agent, allantoin, gly Sirretinate, a glycyrretin derivative, tranexamic acid, azulene, etc. are mentioned, respectively.

As a cosmetic ingredient, arbutin, glutathione, whitening agent such as tiger ear extract, royal jelly, photosensitizer, cholesterol derivative, cell activating agent such as young calf blood extract, skin roughness improving agent, nonylate warenylamide, nicotinic acid benzyl ester, nicotinic acid β- Butoxyethyl ester, capsaicin, zingeron, cantharides tincture, octamol, caffeine, tannic acid, α-borneol, nicotinic acid tocopherol, inositolhexanicotinate, cyclandelate, cinnarizine, tolazoline, verapamil , blood circulation promoters such as cepharantine and γ-oryzanol, skin astringents such as tannic acid, and antiginutics such as sulfur and thiantrol.

Vitamins As such vitamin A oil, retinol acetate, retinol, arm vitamin A acids, riboflavin, butyric acid riboflavin, Plastic vitamin B ₂ stream, such as a blank adenine nucleotide, pyridoxine hydrochloride, pyridoxine die, such as palmitic acid, retinol octanoate vitamin B ₆ acids, L- ascorbic acid in vitamin C, and L- ascorbic acid die palmitate ester, L- ascorbic acid 2-sulfate sodium, dl-α- tocopherol -L- ascorbic acid phosphate diester potassium die flow, Pantothenic acids such as calcium pantothenate, D-pantothenyl alcohol, pantothenyl ethyl ether, and acetyl pantothenyl ethyl ether, vitamin D such as ergocalciferol and cholecalciferol, nicotinic acid, benzyl nicotinic acid, nicotinic acid amide, etc. Vitamin E, such as nicotinic acid, dl-α-tocopherol, dl-α-tocopherol acetate, dl-α-tocopherol nicotinic acid, and dl-α-tocopherol succinate, vitamin P, biotin, etc. are mentioned.

Production of the oil-in-water skin cosmetic of the present invention is not particularly limited, and can be produced according to a method for producing a conventional cosmetic. However, if an example of a more preferable manufacturing method is shown, it is as follows.

(1) components (b) to (e) and, if necessary, other components are emulsified to produce an emulsion, and the powder of component (a) is added thereto and mixed, and further other components are added and mixed as necessary. Way.

(2) The method of manufacturing by mixing a component (a) and a component (b) beforehand, adding and emulsifying the component (c)-(d) and other components as needed.

In the latter method (2), as a means for mixing the component (a) and the component (b), a method of sufficiently coating the surface of the component (a) with the component (b) is used, and this component (b) coating is used. By blending the used component (a) in a mixture of components (c) to (d), etc., an oil-in-water skin cosmetic with better performance is obtained.

The oil-in-water type skin cosmetic of the present invention obtained as described above is a foundation containing BB cream, etc. that uniformly makes up the entire face, a concealer, a makeup base, rouge, eye shadow, makeup cosmetics such as a sunscreen cosmetic, and an emulsion. , can be applied to any skin care cosmetics such as cream. Among them, a foundation applied to the entire face, a makeup base, and a sunscreen cosmetic are particularly preferable.

Example

Hereinafter, the present invention will be described in detail with reference to Examples. In addition, these Examples do not limit this invention at all.

Examples 1 to 9 and Comparative Examples 1 to 3

Water-based skin cosmetics:

Oil-in-water emulsified cosmetics were prepared according to the composition shown in Table 1 and the following preparation method. Sensory evaluation of the obtained cosmetics for "moisture spread", "uniformity of makeup", "smooth finish", "lasting makeup effect", and "easiness of erasing in warm water" by evaluation method (1) to be described later was done. In addition, physical evaluation was performed by the evaluation method (2) other than sensory evaluation with respect to "easiness of erasing in warm water". Table 1 shows their results together.

[Furtherance]

[Manufacturing method]

A. Mix ingredients 1 to 14 and 17.

B. Components 20 to 31 are heated and mixed and kept at 70°C.

C. The ingredients 15, 16, 18, 19, 32 to 36 are mixed and kept warm at 70°C.

D. Add B to C to emulsify.

E. D is cooled to 40°C, A is added, uniformly dispersed, and filled into a container to obtain an oil-in-water skin cosmetic.

[Evaluation method (1)/sensory test]

20 panelists specializing in cosmetic evaluation were asked to use each water-in-water type skin cosmetic of the above Examples and Comparative Examples on the entire face, “moisturizing spread”, “cosmetic uniformity”, “smooth finish”, “make-up lasting effect” , "Easy to erase in hot water" was evaluated in 7 stages according to the following criteria, and a rating was given to each sample. In addition, the average score of the ratings of all the panels was judged according to the following criteria. In addition, "makeup lasting effect" was evaluated about the cosmetic film 6 hours after application|coating.

(Evaluation Criteria 1)

Rating: rating

6: Very good

5: Good

4: Somewhat good

3: Normal

2: Somewhat bad

1: bad

0: very bad

(Criterion 1)

Average Point of Rating: Judgment

5. 0 or more: ◎ (very good)

3. More than 5. Less than 0: ○ (Good)

2. 0 or more 3. Less than 5: △ (Normal)

2. Less than 0: × (bad)

[Evaluation method (2)/physical test]

Regarding the ease of erasing in warm water, in addition to the sensory evaluation, as the evaluation method 2, a physical test was also performed using the water washability test apparatus shown in FIG. 1 .

As shown in FIG. 1, the used apparatus is comprised from the rotational thrust member 2, the support base 6, the motor 7, the holding tool 9, and the balancer 8. As shown in FIG. Among them, in (2), as shown in Fig. 2, the rotating plate 11 to which the sliding piece 12 is attached is fixed to the rotating shaft 10, and this (10) becomes rotatable by (7). have. In addition, the test sample 5 is, as shown in FIG. 3, the application sample 14 is applied to the test sample base cloth 13, and this (5) is held in the hot water 3, and its upper part (14) on (5) is rubbed by the rotation of (12) installed on the

The test using this apparatus was performed as follows. First, artificial leather (IDEATEX Japan Co., Ltd., part number PB213001, color BK (black)) is used as the test sample base cloth 13, and the coating sample 14 is uniformly applied 1 mm/cm 2 over it, 3 It was left to stand at room temperature for an hour, and it was set as the test sample (5). Thereafter, the test sample (5) was placed in hot water (3) at 35 to 40°C in a hot water container (4).

Next, as shown in Fig. 1, the rotating rotating member 2 attached to the rotating plate 11 with the artificial leather described above as the rotating unit 12 is set, and the weight of the tip is adjusted by the balancer 8. It was set to 0. Thereafter, a 500 g weight was loaded and a force was applied to the rotational friction member 2 (assuming a load applied to the skin during washing of a woman), rotated at 20 rpm 10 times, and rubbed. Each of the brightness values of the sample-applied part of the test sample (blank) 3 hours after application and the sample-applied part of the test sample after rubbing were measured using a colorimeter (Nippon Denshoku Kogyo Co., Ltd., spectroscopic colorimeter SE2000). , From this difference, the following criteria evaluated the ease of washing with water.

(Criterion 2)

Difference in lightness value (ΔL): evaluation

15 and above: ◎ Very good erase

More than 10 to less than 15: ○ Good erase

More than 5 to less than 10: △ Some remaining

More than 0 and less than 5: × not erased

As is clear from the results in Table 1, the oil-in-water emulsified cosmetics for skin of Examples 1 to 9, which are examples of the present invention, in the sensory test, "moist spread", "uniformity of the cosmetic film", "dry finish" ', "Make-up lasting effect", and "Easy to remove in hot water" were excellent oil-in-water emulsified cosmetics. In addition, in the physical test regarding the ease of erasing in warm water, the oil-in-water emulsified cosmetics for skin of Examples 1 to 9 showed good results.

On the other hand, in Comparative Example 1 which does not contain component (b), since affinity with the skin is inferior, it is very inferior in the point of the uniformity of a cosmetic film and a make-up maintenance effect, and the ease of erasing in warm water was also insufficient. Moreover, in the comparative example 2 which does not contain component (c), since the film|membrane which is compatible with warm water cannot be formed, it is very inferior in the point of the ease of erasing in warm water, and it was also inferior in the uniformity of a cosmetic film, and a makeup retention effect. In addition, in Comparative Example 3 not containing the component (d), it was slippery at the time of forming a cosmetic film, so that a uniform film could not be formed, and it was rapidly fixed when moisture evaporated, so that the moist spread was very poor.

Example 10

Underwater Base:

(ingredient) (%)

(1) Talc 2

(2) mica 3

(3) polymethyl methacrylate (average particle size of 15 µm) 1

(4) Silicone resin powder ^*6 1

(5) Titanium oxide treated with lecithin 3% (average particle size 0.25 μm) 8

(6) fine particle titanium oxide (average particle size 0.035 μm) 3

(7) Bengala 0.05

(8) iron sulfate 0.2

(9) Black iron oxide 0.04

(10) coconut oil fatty acid PEG-7 glyceryl 0.2

(11) Polyvinyl alcohol ^*3 1

(12) 1,3-butylene glycol 12

(13) Residual amount of purified water

(14) Acetic acid stearic acid sucrose 0.5

(15) stearic acid 1.4

(16) cetanol 0.5

(17) behenyl alcohol 0.5

(18) glycerin monostearate 0.5

(19) PEG-60 Hydrogenated Castor Oil 0.35

(20) Polyoxyethylene monooleate (20) Sorbitan 0.2

(21) ethylhexyl 3 methoxycinnamate

(22) Hexyl 2 diethylaminohydroxybenzoate

(23) liquid paraffin 2

(24) decamethylcyclopentasiloxane 4

(25) Dimethyl polysiloxane (10 mm 2 /s, 25 ° C.) 1

(26) (acrylate/alkyl acrylate (C10-30)) crosspolymer 0.03

(27) carboxyvinyl polymer 0.03

(28) triethanolamine 0.05

(29) Ethanol 1.5

(30) methyl paraoxybenzoate 0.15

(31) Methylenebisbenzotriazolyltetramethylbutylphenol 5.5

* 6: KSP-100 (manufactured by Shin-Etsu Chemical Co., Ltd.)

(Manufacturing method)

A. Mix ingredients 1 to 12.

B. Components 14 to 25 are heated and mixed and kept at 70°C.

C. Mix ingredients 13 and 26 to 31 and keep warm at 70°C.

D. Add B to C to emulsify.

E. D was cooled to 40° C., A was added, uniformly dispersed, and filled into a container to obtain an oil-in-water base.

(result)

The oil-in-water base of Example 10 formed a moist and dry, uniform makeup film, had an excellent makeup lasting effect, and was also excellent in ease of erasing in warm water.

Example 11

Underwater Ball Rouge:

(ingredient) (%)

(1) Talc 1

(2) theanine 3% treated mica 1

(3) polymethyl methacrylate (average particle size 5 µm) 3

(4) boron nitride 5

(5) Titanium oxide (average particle diameter 0.27 μm) 4

(6) Mica coated with iron oxide and titanium oxide 1

(7) Bengala 0.4

(8) iron sulfate 0.2

(9) black iron oxide 0.01

(10) Red No. 202 0.2

(11) Aluminum hydroxide 0.05

(12) N-stearoylglutamic acid disodium 0.3

(13) 1,3-butylene glycol 10

(14) Polyvinyl acetate emulsion ^*2 1

(15) Residual amount of purified water

(16) Stearyl dimethicone ^*4 0.7

(17) Lecithin 80% · Cholesterol 20% mixture 1.5

(18) cetanol 0.5

(19) behenyl alcohol 0.6

(20) glycerin monostearate 0.5

(21) PEG-60 hydrogenated castor oil 0.3

(22) Polyoxyethylene monooleate (20) Sorbitan 0.1

(23) ethylhexyl 3 methoxycinnamate

(24) hexyl 2 diethylaminohydroxybenzoate

(25) liquid paraffin 2

(26) Decamethylcyclopentasiloxane 2

(27) methyltrimethicone 3

(28) Methylphenylpolysiloxane ^*7 2

(29) carboxyvinyl polymer 0.03

(30) triethanolamine 0.05

(31) Ethanol 1.5

(32) methyl paraoxybenzoate 0.15

＊ 7: SH556FLUID (manufactured by Shin-Etsu Chemical Co., Ltd.)

(Manufacturing method)

A. Mix ingredients 1 to 14.

B. Components 16 to 28 are heated and mixed and kept at 70°C.

C. Mix ingredients 15, 29 to 32 and keep warm at 70°C.

D. Add B to C to emulsify.

E. D was cooled to 40° C., A was added, uniformly dispersed, and filled in a container to obtain oil-in-water ball rouge.

(result)

The oil-in-water ball rouge of Example 11 was excellent in a soft finish with moist spreading, forming a uniform makeup film, excellent makeup lasting effect of the ball rouge, and easy to erase in hot water.

Example 12

Underwater Concealer:

(ingredient) (%)

(1) Talc 3

(2) mica 3

(3) Silicone resin powder ^*6 4

(4) N-lauroyl lysine 3

(5) Titanium oxide (average particle size 0.25 μm) 14

(6) fine particle titanium oxide (average particle size 0.035 μm) 3

(7) Lecithin 0.2% treatment Bengala 0.1

(8) lecithin 0.2% treated iron sulfate 0.4

(9) lecithin 0.2% treatment black iron oxide 0.1

(10) Lecithin ^*8 0.08

(11) Polyvinyl acetate emulsion ^*2 1.5

(12) Polyvinyl alcohol ^*3 0.5

(13) 1,3-butylene glycol 11

(14) Residual amount of purified water

(15) stearyldimethicone 0.5

(16) stearic acid 1.4

(17) cetanol 0.5

(18) behenyl alcohol 0.5

(19) glycerin monostearate 0.5

(20) PEG-60 hydrogenated castor oil 0.35

(21) Polyoxyethylene monooleate (20) Sorbitan 0.2

(22) ethylhexyl 3 methoxycinnamate

(23) Hexyl 2 diethylaminohydroxybenzoate

(24) liquid paraffin 2

(25) decamethylcyclopentasiloxane 2

(26) isododecane 3

(27) Methylphenylpolysiloxane ^*8 2

(28) carboxyvinyl polymer 0.03

(29) triethanolamine 0.05

(30) Ethanol 1.5

(31) methyl paraoxybenzoate 0.15

＊ 8: Lecithin CLO (manufactured by J-OIL MILLS, INC.)

(Manufacturing method)

A. Mix ingredients 1 to 13.

B. Components 15 to 27 are heated and mixed and kept at 70°C.

C. Mix ingredients 14 and 28 to 31 and keep warm at 70°C.

D. Add B to C to emulsify.

E. D was cooled to 40° C., A was added, uniformly dispersed, and filled into a container to obtain an oil-in-water concealer.

(result)

The oil-in-water concealer of Example 12 spread moistly and was excellent in the formation of a smooth and uniform makeup film, and was also excellent in the makeup lasting effect and the ease of erasing in warm water.

Example 13

Underwater Type Foundation:

(ingredient) (%)

(1) Talc 1

(2) Synthetic Mica 3

(3) Nylon powder (average particle size 10㎛) 4

(4) N-lauroyl lysine 2

(5) Titanium oxide (average particle size 0.25 μm) 10

(6) fine particle titanium oxide (average particle size 0.035 μm) 3

(7) Bengala 0.1

(8) iron sulfate 0.4

(9) black iron oxide 0.1

(10) Lecithin ^*1 0.08

(11) Polyvinyl acetate emulsion ^*2 1

(12) Polyvinyl alcohol ^*3 0.8

(13) 1,3-butylene glycol 12

(14) Residual amount of purified water

(15) Acetic acid stearic acid sucrose 0.5

(16) stearic acid 1.4

(17) cetanol 0.5

(18) behenyl alcohol 0.5

(19) glycerin monostearate 0.5

(20) PEG-60 hydrogenated castor oil 0.35

(21) Polyoxyethylene monooleate (20) Sorbitan 0.2

(22) ethylhexyl 3 methoxycinnamate

(23) Hexyl 2 diethylaminohydroxybenzoate

(24) bisethylhexyloxyphenol methoxyphenyltriazine 0.3

(25) dicapric acid neopentyl glycol 2

(26) Decamethylcyclopentasiloxane 2

(27) methyltrimethicone 2

(28) Meadowfoam oil 1.5

(29) Na acrylate/acryloyl dimethyl taurine Na copolymer mixture ^*9 3

(30) triethanolamine 0.05

(31) Ale alcohol 1.5

(32) methyl paraoxybenzoate 0.15

＊ 9: SIMUL GEL EG (manufactured by Sepix)

(Manufacturing method)

A. Mix ingredients 1 to 13.

B. Components 15 to 28 are heated and mixed and kept at 70°C.

C. Mix ingredients 14 and 29 to 32 and keep warm at 70°C.

D. Add B to C to emulsify.

E. D was cooled to 40°C, A was added, uniformly dispersed, and filled in a container to obtain an oil-in-water foundation.

(result)

The oil-in-water foundation of Example 13 spreads moistly, has excellent makeup film uniformity, has a dry finish, and has excellent makeup lasting effect and easy removal in warm water.

When applied to the skin alone, the oil-in-water skin cosmetic of the present invention forms a uniform cosmetic film with a natural covering effect while providing a glossy feeling of use, and exhibits a soft finish and excellent makeup lasting effect. And this cosmetic film can be easily washed off with warm water etc., and it is very excellent in usability. In addition, when another cosmetic is applied after this oil-in-water skin cosmetic is applied, the makeup lasting effect of the cosmetic is improved, and at the same time, when removing makeup, even the makeup film of another cosmetic used on the cosmetic film can be simultaneously removed with warm water. .

Therefore, the oil-in-water skin cosmetic of the present invention has a very high usability and usability, and can be expected to be advantageously used in the field of cosmetics.

1: Ease of flushing test device 2: Rotational vibrating member
3: Hot water 4: Hot water container
5: Test sample 6: Support
7: Motor 8: Balancer
9: holding tool 10: axis of rotation
11: Rotating plate 12: Chalcedony (artificial leather)
13: test sample base fabric (artificial leather) 14: coated sample

Claims (5)

Oil-in-water emulsified cosmetic for skin, characterized in that it contains the following components (a) to (e) and is easy to wash:
(a) powder;
(b) a compound selected from the group consisting of lecithin, a polymer or copolymer containing a phosphorylcholine group as a component, an amino acid, an acylated amino acid, and a polyoxyethylene palm oil fatty acid glyceryl;
(c) a film forming agent selected from the group consisting of polyvinyl acetate and polyvinyl alcohol;
(d) polyhydric alcohols; and
(e) water. delete The oil-in-water emulsified cosmetic for skin according to claim 1, wherein the mass ratio of the content of the polyhydric alcohol of the component (d) and the water of the component (e) is 1:5 to 1:1. The oil-in-water emulsified cosmetic for skin according to claim 1 or 3, further comprising a solid oil as component (f). The oil-in-water emulsified cosmetic for skin according to claim 4, wherein the solid oil of the component (f) has a melting point of 30 to 50°C.

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