CN102949303A - Emulsion composite - Google Patents

Abstract

The present invention relates to an emulsified composition, which contains the following components (A), (B), (C), (D), (E) and (F): (A) glycerol monofatty acid ester; (B) carbon Higher alcohols with 10~24 atoms; (C) ceramides; (D) anionic surfactants; (E) selected from (polydimethylsiloxane/vinyl polydimethylsiloxane) Crosspolymer, (Dimethicone/Phenyl Vinyl Dimethicone) Crosspolymer, and (Vinyl Dimethicone/Lauryl Dimethicone ) one or more cross-linked polysiloxanes among the cross-linked polymers; (F) water, and components (A), (B), and (C) and components (D) converted to acids The mass ratio of the content of the component (E) to the content of the component (E) is ((A)+(B)+(C)+(D))/(E)=1~125.

Description

emulsified composition

technical field

The present invention relates to emulsified compositions.

Background technique

α-gel is a hydrated crystal structure with a lamellar structure. Most of the stratum corneum intercellular lipid present in the stratum corneum, the outermost layer of the skin, also has this α-gel structure. Therefore, for the skin, the stratum corneum intercellular lipid suppresses the invasion of substances from the outside and the evaporation of water from the inside, and at the same time, has the property of maintaining softness or a smooth appearance of the skin by itself retaining water. It is known that in the skin, the stratum corneum holds about 33% by mass of water in the form of bound water, and the stratum corneum intercellular lipids in the stratum corneum hold about 13% by mass of bound water.

The α-gel is thus capable of retaining moisture, and therefore, its use in cosmetics and the like is discussed.

For example, Patent Document 1 describes that an emulsified composition containing ceramides, monoglycerin fatty acid esters, higher alcohols, etc. forms an α-gel structure.

prior art literature

patent documents

Patent Document 1: JP-A-2007-22997

Contents of the invention

The present invention provides an emulsified composition comprising the following components (A), (B), (C), (D), (E) and (F):

(A) glycerol monofatty acid ester;

(B) Higher alcohols with 10-24 carbon atoms;

(C) Ceramides;

(D) Anionic surfactants;

(E) selected from (Dimethicone/Vinyl Dimethicone) Crosspolymer, (Dimethicone/Phenyl Vinyl Dimethicone) One or more cross-linked polysiloxanes of cross-linked polymers and (vinyl dimethicone/lauryl dimethicone) cross-linked polymers;

(F) water,

In addition, the mass ratio of the content of components (A), (B), (C) and the content of component (D) converted into acid to the content of component (E) ((A) + (B) + (C) + (D ))/(E) is 1~125.

Description of drawings

[ Fig. 1 ] is a diagram showing a photograph of the emulsified composition of Example 2 observed with an optical microscope. A photo (b) obtained by observing with ordinary light through an optical microscope, a photo (a) obtained by applying polarized light, and an enlarged photo (a1) of the spherical lamella part in photo (a).

Contents of the invention

The present invention relates to an emulsified composition that stably contains ceramide, has a high moisturizing effect, suppresses roughness, and is excellent in usability.

The present inventors have found that, for α-gel designed to improve water retention, by using a specific cross-linked polysiloxane in a specific ratio, due to the α-gel formed on the skin when applied, The gum phase is independent, and there are oil droplets containing cross-linked polysiloxane, so it is possible to obtain an emulsified composition with improved smoothness, suppressed roughness, and excellent usability.

The emulsified composition of the present invention forms an α-gel structure, prevents crystallization of ceramide and contains the ceramide stably, has a high moisturizing effect, improves smoothness, suppresses roughness, and has excellent usability.

The "rough feeling" in the present invention means that if the finger slides on the skin to apply the emulsified composition, although it is desired to cover it with a film, it is difficult to slide, and the tactile feeling is like stopping the movement of the finger; " means that if the composition is also applied to the skin, it not only has the protective function of covering the skin with the composition, but also has moderate smoothness and lubricity, without feeling of clogging.

As the glycerol monofatty acid ester of the component (A) used in the present invention, a glycerol monofatty acid ester obtained from a straight-chain fatty acid having 10 to 24 carbon atoms is preferable, for example, glycerol monolaurate, glycerol monolaurate, Myristate, Glyceryl Monopalmitate, Glyceryl Monostearate, Glyceryl Monobehenate, Glyceryl Monooleate, etc.

Among them, glycerol monofatty acid esters obtained from straight-chain fatty acids having 18 to 22 carbon atoms are preferred, and glycerol monopalmitate, glycerol monostearate, and glycerol monobehenate are more preferred.

Component (A) can be used alone or in combination with two or more, and its content is preferably 0.001% by mass or more, more preferably 0.05% by mass or more, and still more preferably 0.1 mass % or more, and preferably 10 mass % or less, more preferably 3 mass % or less, still more preferably 2 mass % or less. In addition, the component (A) is preferably contained in the emulsified composition of the present invention at 0.001 to 10% by mass, more preferably at 0.05 to 3% by mass, and still more preferably at 0.1 to 2% by mass.

The higher alcohol of the component (B) used in the present invention is a higher alcohol having 10 to 24 carbon atoms, for example, lauryl alcohol, myristyl alcohol, cetyl alcohol, stearyl alcohol, behenyl alcohol, oleyl alcohol, etc. .

Among them, higher alcohols with 14 to 22 carbon atoms are preferred, and cetyl alcohol, stearyl alcohol, and behenyl alcohol are more preferred.

Component (B) can be used alone or in combination of two or more, and its content is preferably 0.001% by mass or more, more preferably 0.1% by mass or more, and preferably 10% by mass or less in the entire composition from the viewpoint of improving the moisture retention capacity , more preferably 3% by mass or less, even more preferably 2.5% by mass or less. In addition, the component (B) is preferably contained in the emulsified composition of the present invention at 0.001 to 10% by mass, more preferably at 0.1 to 3% by mass, and still more preferably at 0.1 to 2.5% by mass.

As the ceramides of the component (C), the following (I) naturally-derived ceramides and/or (II) pseudotyped ceramides are preferable. Specifically, (I) naturally-derived ceramides are preferably ceramides represented by the following general formula (1), and (II) pseudotyped ceramides are preferably ceramides represented by the following general formula (2). By using the structure of the general formula (1) or (2) and mixing with the component (A), the component (B), and the component (D), a lamellar structure can be formed.

(I) Naturally derived ceramides represented by the general formula (1) or synthetic compounds having the same structure and derivatives thereof (hereinafter referred to as natural ceramides).

(In the formula, R ¹¹ represents a linear, branched or cyclic saturated or unsaturated hydrocarbon group with 7 to 19 carbon atoms that can be substituted by a hydroxyl group; Z ₁ represents a methylene or methine group; X ⁵ , X ⁶ and X ⁷ independently represent a hydrogen atom, hydroxyl or acetoxy; X ⁸ represents a hydrogen atom, or forms a bridging oxygen group with an adjacent oxygen atom (however, when Z ₁ is a methine group, X ⁵ Any one of X and X ⁶ is a hydrogen atom, and the other does not exist. When X ⁸ forms a bridging oxygen group, X ⁷ does not exist.); R ¹² represents a hydroxymethyl or acetoxymethyl group; R ¹³ represents a hydrogen atom, or Represents an alkyl group with 1 to 4 carbon atoms; ^R14 is a linear, branched or cyclic saturated or unsaturated hydrocarbon group with 5 to 30 carbon atoms that can be substituted by a hydroxyl group, or represents The end of the omega of the fatty acid is bonded with a straight-chain or branched saturated or unsaturated fatty acid group with a carbon number of 8 to 22 that can be substituted by a hydroxyl group through an ester bond; the dotted line indicates that it can be an unsaturated bond.)

Component (C) is: R ¹¹ is preferably a straight-chain alkyl group with 7 to 19 carbon atoms, more preferably 13 to 15 carbon atoms; R ¹⁴ is preferably a straight-chain alkyl group with 9 to 27 carbon atoms that may be substituted by a hydroxyl group A straight-chain alkyl group or a group in which linoleic acid is bonded to a straight-chain alkyl group with 9 to 27 carbon atoms through an ester bond. In addition, X ⁸ preferably represents a hydrogen atom, or preferably forms a bridging oxygen group together with an oxygen atom. Further, as R ¹⁴ , tricosyl, 1-hydroxypentadecyl, 1-hydroxytricosyl, heptadecyl, 1-hydroxyundecyl, and ω-position bonded by an ester bond are preferred. There are nineteen bases of linoleic acid.

Specific examples of natural ceramides include ceramide types 1 to 7 in which sphingosine, dihydrosphingosine, phytosphingosine, or sphingosine is amidated (for example, J.LipidRes., 24:759 (1983) Figure 2, and J.Lipid.Res., 35:2069 (1994) Figure 4 described porcine and human ceramides).

Furthermore, N-alkyl forms (for example, N-methyl forms) of the above-mentioned ceramides may also be included.

These ceramides may be natural type (D(-) body) optically active body, non-natural type (L(+) body) optically active body, or a mixture of natural type and non-natural type may be used. The stereoconfiguration of the above-mentioned compounds may be a substance having a natural stereoconfiguration, a substance having a non-natural stereoconfiguration other than that, or a mixture thereof. Among them, compounds of CERAMIDE 1, CERAMIDE 2, CERAMIDE 3, CERAMIDE 5, and CERAMIDE 6II (the above are based on INCI 8th edition) and substances represented by the following formula are preferable.

These may be any of natural extracts and/or synthetics, and commercially available ones may be used.

Commercially available products of such natural ceramides include Ceramide I, Ceramide III, Ceramide IIIA, Ceramide IIIB, Ceramide IIIC, Ceramide VI (above, Cosmofarm), Ceramide TIC-001 (Takasago Fragrance Co.), Ceramide II (Quest International), DS-Ceramide VI, DS-CLA-Phytoceramide, C6-Phytoceramide, DS-ceramide Y3S (DOOSAN), CERAMIDE 2 (Sederma).

(II) Pseudo-ceramide represented by general formula (2).

(In the formula, ^R15 represents a linear, branched or cyclic saturated or unsaturated hydrocarbon group with 10-22 carbon atoms that can be substituted by a hydroxyl group, or represents a hydrogen atom; ^X9 represents a hydrogen atom, an acetyl group or Glyceryl; R ¹⁶ is a straight-chain, branched or cyclic saturated or unsaturated hydrocarbon group with 5-22 carbon atoms that can be substituted by hydroxyl or amino group, or it means that the omega end of the hydrocarbon group is bound by an ester bond There is a group of straight-chain or branched saturated or unsaturated fatty acids with 8 to 22 carbon atoms that can be substituted by hydroxyl; R ¹⁷ represents a hydrogen atom, or represents that it can be substituted by hydroxyl, hydroxyalkoxy, or alkoxy Or an alkyl group with a total carbon number of 1 to 30 substituted by an acetoxy group.)

R ¹⁶ is preferably nonyl, tridecyl, pentadecyl, undecyl in which linoleic acid is bonded at the ω position through an ester bond, and decadecyl group in which linoleic acid is bonded at the ω position through an ester bond. Pentaalkyl, pentadecyl in which 12-hydroxystearic acid is bonded via an ester bond at the ω position, and undecyl in which methyl branched isostearic acid is bonded to the ω position via an amide bond.

When R ¹⁵ is a hydrogen atom, R ¹⁷ is 10 to 30 carbon atoms in total, preferably 12 to 20 carbon atoms in total, which may be substituted by hydroxyl, hydroxyalkoxy, alkoxy or acetoxy. Alkyl group; when ^R15 is a straight chain, branched chain or cyclic saturated or unsaturated hydrocarbon group with 10 to 22 carbon atoms that can be substituted by a hydroxyl group, ^R17 preferably represents a hydrogen atom, or represents that it can be replaced by An alkyl group with a total carbon number of 1 to 8 substituted by hydroxy, hydroxyalkoxy, alkoxy or acetoxy. The hydroxyalkoxy or alkoxy group of ^R17 is preferably a group having 1 to 7 carbon atoms.

As general formula (2), it is preferred that R ¹⁵ is hexadecyl, X ⁹ is a hydrogen atom, R ¹⁶ is pentadecyl, R ¹⁷ is hydroxyethyl; R ¹⁵ is hexadecyl, X ⁹ is Pseudotype ceramides (can be limited to two types in the following chemical formulas) of a hydrogen atom, R ¹⁶ is a nonyl group, and R ¹⁷ is a hydroxyethyl group, more preferably R ¹⁵ of the general formula (2) is hexadecane group, X ⁹ is a hydrogen atom, R ¹⁶ is pentadecyl, and R ¹⁷ is a hydroxyethyl group (N-(hexadecyloxyhydroxypropyl)-N-hydroxyethyl hexadecylamide).

The ceramides of the component (C) can be used alone or in combination, and the content thereof is preferably 0.001% by mass or more, more preferably 0.1% by mass or more, based on the entire composition, from the viewpoint of sufficiently permeating the component (C) into the skin , more preferably 0.2% by mass or more, and preferably 10% by mass or less, still more preferably 5% by mass or less, even more preferably 3% by mass or less. In addition, the component (C) is preferably contained in the emulsified composition of the present invention at 0.001 to 10% by mass, more preferably at 0.1 to 5% by mass, and still more preferably at 0.2 to 3% by mass.

Examples of the anionic surfactant used in the present invention as component (D) include fatty acid salts obtained from fatty acids having 12 to 24 carbon atoms, such as sodium laurate, potassium palmitate, and arginine stearate. Alkyl sulfates such as sodium lauryl sulfate and potassium lauryl sulfate; Alkyl ether sulfates such as polyoxyethylene lauryl sulfate triethanolamine; N-acyl sarcosinates such as sodium lauryl sarcosinate; N- Fatty acid amide sulfonates such as sodium stearyl-N-methyl taurate and sodium N-myristoyl-N-methyl taurate; alkyl phosphates such as sodium monostearyl phosphate; polyoxyethylene oil Polyoxyethylene alkyl ether phosphates such as sodium alkenyl ether phosphate and sodium polyoxyethylene stearyl ether phosphate; long-chain sulfosuccinates such as sodium di-2-ethylhexyl sulfosuccinate; N-lauroyl Monosodium Glutamate, Sodium N-Stearyl-L-Glutamate, N-Stearyl-L-Glutamate Arginine, Sodium N-Stearyl Glutamate, N-Myristoyl- L-sodium glutamate and other long-chain N-acyl glutamate, etc.

Among them, fatty acid salts obtained from fatty acids with 12 to 24 carbon atoms, fatty acid amide sulfonates obtained from fatty acids with 14 to 22 carbon atoms, and polyamides with alkyl groups with 14 to 22 carbon atoms are preferred. Oxyethylene alkyl ether phosphate, N-acyl glutamate obtained from a fatty acid having 12 to 22 carbon atoms, and as a salt, sodium salt and arginine salt are preferable. Further preferred are amide sulfonates obtained from fatty acids with 18 to 22 carbon atoms, polyoxyethylene alkyl ether phosphates with alkyl groups with 18 to 22 carbon atoms, fatty acids with 18 to 22 carbon atoms The obtained N-acyl glutamate is more preferably selected from N-stearyl-N-methyl taurate sodium, N-stearyl-L-glutamic acid arginine, polyoxyethylene stearyl One or more of sodium ether phosphates.

Component (D) can be used alone or in combination of two or more. From the viewpoint of suppressing the crystallization of component (C), the content of component (D) is preferably 0.01 mass % or more in terms of acid in the entire composition, more preferably 0.05% by mass. Mass % or more, more preferably 0.1 mass % or more, and preferably 3 mass % or less, still more preferably 2 mass % or less, still more preferably 1.5 mass % or less. In addition, the content of the component (D) is preferably 0.01 to 3% by mass, more preferably 0.05 to 2% by mass, and still more preferably 0.1 to 1.5% by mass in terms of acid in the emulsified composition of the present invention.

In addition, the component (D) is a compound obtained by neutralizing an acidic compound and a base, and the content of the component (D) is the content as an acidic compound or the content converted into an acid.

The cross-linked polysiloxane of component (E) used in the present invention is selected from (polydimethylsiloxane/vinyl polydimethylsiloxane) cross-linked polymer, (polydimethylsiloxane Oxane/Phenylvinyl Dimethicone) Crosspolymer and (Vinyl Dimethicone/Lauryl Dimethicone) Crosspolymer More than one cross-linked polysiloxane. These bi-polysiloxanes are preferably dispersed in an aqueous medium or an oily medium and used as a compounding material.

Cross-linked polysiloxane is a silicone containing three-dimensional bonding, for example, cross-linked methyl polysiloxane is a polymer having a cross-linked structure formed by three-dimensionally cross-linked methyl polysiloxane, and can be obtained according to Common method of manufacture. For example, cross-linked methylpolysiloxane is made by polymerizing dimethyldimethoxysilane or dimethyldichlorosilane to construct a silicone chain, and dimethylmethoxyvinylsilane or chlorinated Copolymerized with dimethylvinylsilane and the like, and then polymerized between vinyl groups to construct a crosslinked structure. In addition, when dimethoxydimethylsiloxane is polymerized to produce methylpolysiloxane, a three-dimensional crosslinked structure can be introduced by adding a small amount of methyltrimethoxysiloxane as a crosslinking agent.

The cross-linked polysiloxane as the component (E) is more preferably a (polydimethylsiloxane/vinyl dimethicone) cross-linked polymer from the viewpoint of skin application.

In addition, the crosslinked polysiloxane is preferably used by dispersing it in an oily medium. Examples of the oily medium include cyclopentasiloxane, dimethicone, squalane, mineral oil, isododecane, diphenylsiloxyphenyl trimethicone, etc. Liquid oily medium (hydrocarbon oil, polar oil) at 25°C.

Commercially available products of these cross-linked polysiloxanes include KSG-15, KSG-16, KSG-1610, KSG-18A, KSG-41, KSG-42, KSG-43, KSG-44 (above Shin-Etsu Chemical Co., Ltd.), 9546 Silicone Elastomer Blend (manufactured by Dow Corning Toray Co.), SFE839 (manufactured by Momentive Performance Materials Inc.), and the like are exemplified.

In the emulsified composition of the present invention, the component (E) exists as independent oil droplets together with an oily medium, independently of the layered lamellar structure existing on the skin at the time of application or a small amount of spherical lamellar layers, It can improve the smooth feeling at the time of coating, suppress the rough feeling, and obtain an excellent feeling in use.

Component (E) can be used at least one kind, and it is preferably contained in the emulsified composition of the present invention in an amount of 0.0025 to 4% by mass, more preferably in an amount of 0.01 to 3% by mass, from the viewpoint of suppressing stickiness, improving smoothness, and suppressing roughness. , more preferably 0.03 to 2% by mass. The content of component (E) is preferably 4% by mass or less from the viewpoint of stickiness suppression, more preferably 3% by mass or less, still more preferably 2% by mass or less, and preferably 0.0025% by mass from the viewpoint of suppressing roughness Above, more preferably 0.01% by mass or more, still more preferably 0.03% by mass or more.

In the present invention, the content of components (A), (B), and (C) and component (D) in terms of acid and the content of components ( The mass ratio of the content of E) is ((A)+(B)+(C)+(D))/(E)=1~125, preferably 1.5~100, more preferably 3~70, more preferably 3.5~70. From the viewpoint of stickiness suppression, the mass ratio ((A)+(B)+(C)+(D))/(E) is 1 or more, preferably 1.5 or more, more preferably 3 or more, still more preferably 3.5 As mentioned above, from the viewpoint of suppressing roughness, it is 125 or less, preferably 100 or less, and more preferably 70 or less.

Furthermore, from the standpoint of preventing crystallization of ceramide to improve stability and suppress roughness, the mass ratio ((B)/(C)) of the components (B) and (C) is preferably 0.2 to 5, and further Preferably it is 0.25~4, More preferably, it is 0.3~4. By setting the above-mentioned mass ratio to the above-mentioned range, lamellar sheets composed of components (A) to (D), a small amount of spherical sheets, and individual oil droplets containing component (E) can coexist, and the sheet structure An emulsified composition that prevents crystallization of ceramide, has moisturizing properties when applied to the skin, and suppresses roughness.

In addition, the mass ratio ((D)/(E)) of the content of the component (D) and the content of the component (E) in terms of acid conversion is calculated from the viewpoint of preventing the crystallization of ceramide, improving stability, and suppressing roughness Preferably it is 0.1-15, More preferably, it is 0.2-12, More preferably, it is 0.4-10.

In the present invention, the water of the component (F) is preferably contained in the emulsified composition of the present invention in a range of 20% by mass to 99% by mass, more preferably in a range of 40% by mass to 90% by mass.

In addition, other water-based base agents may also be included, such as lower alcohols with 1 to 4 carbon atoms such as ethanol and propanol. In addition, when the water content of the component (F) is mixed twice, it is the sum of the contents of the first water (F1), the second water (F2) and the water (F3) contained in each component.

The emulsified composition of the present invention further preferably contains (G) a polyhydric alcohol having an IOB of 1.5 to 3.5 from the viewpoint of further suppressing roughness.

Here, IOB represents the combination of inorganic and organic values obtained based on the organic concept map (Fujita Mu, Prediction of Organic Compounds and Organic Concept Map, Field of Chemistry Vol.11, No.10(1957)719-725) Ratio (Inorganic Organic Balance), obtained by the following formula.

Specifically, linear or branched glycols, monoalkyl monoalkyl glycol ethers, monoalkyl dialkyl glycol ethers, or monoalkyl trialkyl glycol ethers, polyethylene glycol ethers, alcohol, polypropylene glycol, polyoxyethylene glycol. More specifically, 1,3-butanediol (IOB=2.50), isopentyl glycol (IOB=2.0), propylene glycol (IOB=3.33), 1,3-propanediol (IOB=3.33), dipropylene glycol (IOB=1.83) and other diols with carbon atoms of 2 to 10; diethylene glycol monoethyl ether (IOB=1.6), polypropylene glycol with a molecular weight of 1 million to 10,000, and poly Polyoxyethylene diglyceryl ether with an average addition mole number of ethylene glycol and ethylene oxide of 4 to 20.

The polyhydric alcohol of component (G) can be used 1 type or 2 or more types, From a viewpoint of further suppressing roughness, it is preferable to contain 0.001-20 mass % in the emulsified composition of this invention, and it is more preferable to contain 0.2-20 mass %, It is more preferable to contain 2-20 mass %, and it is preferable to contain 0.2-15 mass % from a viewpoint of suppressing a sticky feeling and improving refreshing moist feeling, and it is more preferable to contain 2-10 mass %.

From the viewpoint of further suppressing roughness and stickiness, the mass ratio of the total content of components (A), (B), and (C) and component (D) converted to acid to the content of component (G) (( (A)+(B)+(C)+(D))/(G)) is preferably 0.1-20, more preferably 0.2-16, still more preferably 0.3-4. The mass ratio (((A)+(B)+(C)+(D))/(G)) is preferably 0.1 or more, more preferably 0.2 or more, and still more preferably 0.3 or more from the viewpoint of stickiness suppression. From the viewpoint of further suppressing roughness, it is preferably 20 or less, more preferably 16 or less, and still more preferably 4 or less.

The emulsified composition of the present invention may further contain an oil agent other than the above (other than components (B), (C), and (E)). For example, hydrocarbon oils such as liquid paraffin, hydrogenated polyisobutylene, hydrogenated polydecene, squalane, and petrolatum; higher fatty acids such as stearic acid, behenic acid, and isomyristic acid; vegetable oils such as olive oil and jojoba oil; Dimethicone (methylpolysiloxane), cyclic dimethylpolysiloxane, methylphenylpolysiloxane, amino-modified silicone, carboxyl-modified silicone, alcohol-modified Silicone, alkyl modified silicone, polyether modified silicone, fluorine modified silicone and other silicone oils; perfluoroalkyl ethyl phosphoric acid, perfluoroalkyl polyoxyethylene phosphoric acid, perfluoropolyether, polytetrafluoroethylene Fluorinated oils such as ethylene, etc.

These oil agents are preferably not contained or contained in an amount of 20% by mass or less in the entire composition.

In addition, the emulsified composition of the present invention may contain active ingredients or additives commonly used in cosmetics, such as water-soluble vitamins such as ascorbic acid, niacinamide, and niacin; , licorice extract, aloe vera extract, quince extract, tea extract, cucumber extract, clove extract, ginseng extract, witch hazel (Hamamelis) extract, placenta extract, seaweed extract, horse chestnut Extract, Chamomile Extract, Grapefruit Extract, Clove Extract, Marshmallow Extract, Brown Algae Extract, Podocarpus Extract, Royal Jelly Extract, Eucalyptus Extract and other animal and plant extracts; Potassium Hydroxide, Sodium Hydroxide , triethanolamine, sodium carbonate and other bases; citric acid, tartaric acid, lactic acid, phosphoric acid, succinic acid, adipic acid and other acids; carboxyvinyl polymer, sodium alginate, carrageenan, carboxymethyl cellulose, hydroxyethyl cellulose Sulfate, Guar Gum, Xanthan Gum, Carboxymethyl Chitosan, Sodium Hyaluronate, Oxazoline Modified Silicone, N,N-Dimethylaminoethyl Methacrylate Diethyl Sulfate N , N-dimethylacrylamide · dimethacrylic acid polyethylene glycol copolymer and other tackifiers.

The emulsified composition of the present invention can be produced, for example, by any of the following production methods (1) to (3), and can be obtained as an oil-in-water emulsified composition.

(1) It includes the following steps: heating, mixing and stirring the first oil phase containing components (A), (B) and (C) at 80-90°C; The process of the first water phase of the acid type compound and base of the component (D), and a part (F1) of the component (F); then, the second oil phase mixed with other oily components heated to 80~90°C is added and stirred The process; the process of cooling to 25° C. under stirring; and the process of further mixing while adding (F2) and other water-soluble components (second aqueous phase) as the remaining component (F). Component (E) may be mixed with the first oil phase or may be mixed with the second oil phase.

(2) including the following steps: a step of heating, mixing and stirring the first oil phase containing the acid type compound of the component (D) in the components (A), (B) and (C) at 80 to 90° C.; then , the process of adding and mixing the first aqueous phase containing the alkali for neutralizing the component (D) and a part (F1) of the component (F) heated to 80-90°C; then, mixing and heating to 80-90°C Process of other oil-based components (second oil phase); process of cooling to 25°C with stirring; then, adding (F2) and other water-soluble components (second water phase) as the remaining component (F) side mixing process. Component (E) may be mixed with the first oil phase or may be mixed with the second oil phase.

(3) Including the step of heating, mixing and stirring the first oil phase containing a part of the acid type compound of the component (D) among the components (A), (B) and (C) at 80 to 90°C ; Next, the process of adding and mixing the first aqueous phase containing the remaining acidic compound and alkali containing component (D) and a part (F1) of component (F) heated to 80~90°C; then, mixing and stirring The process of other oily components (second oil phase) to 80~90°C; the process of cooling to 25°C while stirring; and then, adding (F2) and other water-soluble components as the remaining component (F) (Second aqueous phase) while mixing. Component (E) may be mixed in the first oil phase, or may be mixed in the second oil phase.

The cooling in the above production methods (1) to (3) is not limited to cooling to 25°C, but may be cooled to room temperature below 40°C, preferably below 30°C, preferably above 15°C, more preferably below 20°C above.

As described above, the composition of the present invention preferably has a step of heating and mixing components (A) to (D) from the viewpoint of manufacturability and stability.

Among the above-mentioned production methods, the production method (1) or (2) is preferable, and the production method (1) is more preferable from the viewpoint of productivity and stability over time. In addition, in the production method (1) or (2), (F1) in the component (F) in the first aqueous phase is preferably 10 to 50% by mass of the total amount of the emulsified composition after production, more preferably 15 to 50% by mass. 45% by mass, and the amount of (F1) in the component (F) may be such that the acidic compound of the component (D) is neutralized by a base and brought into a dissolved state.

The obtained emulsified composition is an α-gel (α-type crystal), and precipitation of crystals (γ-type crystal) is suppressed. The α-gel can be confirmed by structural analysis by wide-angle X-ray diffraction (Bragg angle 21~23°). The α-type structure is a hexagonal crystal system, and the lipophilic group is oriented at right angles to the surface of the hydrophilic base layer. It is characterized by a sharp diffraction peak near the Bragg angle of 21~23°.

Furthermore, components (A) to (D) form lamellar sheets, and peaks can be confirmed at the Bragg angle ratio of 1:2:3:4 by small-angle X-ray diffraction (Bragg angle 0.3-5°). After concentrating the emulsified composition of the present invention with a centrifuge, it is measured by small-angle X-ray diffraction. As mentioned above, the continuous phase of the emulsified composition of the present invention is an aqueous phase, which contains lamellar sheets and spherical sheets formed of components (A) to (D), and a cross-linked type containing component (E). Such structures of the three types of oil droplets of polysiloxane can be confirmed by optical microscopy, wide-angle X-ray diffraction, and small-angle X-ray diffraction.

In addition, the emulsified composition of the present invention is preferably an oil-in-water emulsified composition, and is suitable as, for example, cosmetics such as lotion, lotion, cream, and gel, or external skin preparations.

Furthermore, the emulsified composition of the present invention can be used for coating on the skin, and can be used for producing a skin coating agent.

Regarding the above-mentioned embodiments, the present invention further discloses the following compositions, production methods, and uses.

[1] An emulsified composition containing the following components (A), (B), (C), (D), (E) and (F):

(A) glycerol monofatty acid ester;

(B) Higher alcohols with 10-24 carbon atoms;

(C) Ceramides;

(D) Anionic surfactants;

(E) selected from (Dimethicone/Vinyl Dimethicone) Crosspolymer, (Dimethicone/Phenyl Vinyl Dimethicone) One or more cross-linked polysiloxanes of cross-linked polymers and (vinyl dimethicone/lauryl dimethicone) cross-linked polymers;

(F) water,

In addition, the mass ratio of components (A), (B), (C) and the content of component (D) converted into acid to the content of component (E) ((A) + (B) + (C) + (D ))/(E) is 1~125.

[2] The emulsified composition according to the above [1], wherein the component (E) is a (dimethicone/vinyl dimethicone) crosslinked polymer.

[3] The emulsified composition according to the above [1] or [2], wherein the mass ratio (D)/(E) of the content of the component (D) in terms of acid and the content of the component (E) is 0.1 ~15, preferably 0.2~12, more preferably 0.4~10.

[4] The emulsified composition according to any one of [1] to [3] above, further comprising (G) a polyhydric alcohol having an IOB of 1.5 to 3.5.

[5] The emulsified composition according to any one of the above [1] to [4], which further contains an oil agent other than the above (B), (C), and (E).

[6] The emulsified composition according to any one of [1] to [5] above, wherein the contents and components of components (A), (B), and (C) and component (D) in terms of acid The mass ratio ((A)+(B)+(C)+(D))/(E) of the content of (E) is 1.5-100, preferably 3-70, more preferably 3.5-70.

[7] The emulsified composition according to any one of [1] to [6] above, wherein the mass ratio (B)/(C) of the components (B) and (C) is 0.2 to 5, Preferably it is 0.25~4, More preferably, it is 0.3~4.

[8] The emulsified composition according to any one of [1] to [7] above, wherein the content of component (A) is 0.001 to 10% by mass, preferably 0.05 to 3% by mass, more preferably 0.1% by mass ~2% by mass.

[9] The emulsified composition according to any one of [1] to [8] above, wherein the content of component (B) is 0.001 to 10% by mass, preferably 0.1 to 3% by mass, more preferably 0.1% by mass ~2.5% by mass.

[10] The emulsified composition according to any one of [1] to [9] above, wherein the content of component (C) is 0.001 to 10% by mass, preferably 0.1 to 5% by mass, more preferably 0.2% by mass ~3% by mass.

[11] The emulsified composition according to any one of [1] to [10] above, wherein the content of component (D) in terms of acid is 0.01 to 3% by mass, preferably 0.05 to 2% by mass, More preferably, it is 0.1-1.5 mass %.

[12] The emulsified composition according to any one of [1] to [11] above, wherein the content of component (E) is 0.0025 to 4% by mass, preferably 0.01 to 3% by mass, more preferably 0.03% by mass ~2% by mass.

[13] The emulsified composition according to any one of [1] to [12] above, wherein the content of component (A) is 0.001 to 10% by mass, and the content of component (B) is 0.001 to 10% by mass , the content of the component (C) is 0.001 to 10% by mass, the content of the component (D) in terms of acid is 0.01 to 3% by mass, and the content of the component (E) is 0.0025 to 4% by mass.

[14] The emulsified composition according to any one of [1] to [12] above, wherein the component (A) content is 0.05 to 3% by mass, and the component (B) content is 0.1 to 3% by mass , the content of the component (C) is 0.1 to 5% by mass, the content of the component (D) in terms of acid is 0.05 to 2% by mass, and the content of the component (E) is 0.0025 to 4% by mass.

[15] The emulsified composition according to any one of [1] to [14] above, wherein the content of the component (F) is 20 to 99% by mass, preferably 40 to 90% by mass.

[16] The emulsified composition according to any one of [4] to [15] above, wherein the content of component (G) is 0.001 to 20% by mass, preferably 0.2 to 20% by mass, more preferably 2 ~20% by mass, preferably 0.2 to 15% by mass, more preferably 2 to 10% by mass.

[17] The emulsified composition according to any one of [1] to [16] above, wherein the component (A) is a monoglyceride fatty acid ester obtained from a straight-chain fatty acid having 10 to 24 carbon atoms, It is preferably one or two or more selected from glyceryl monopalmitate, glyceryl monostearate, and glyceryl monobehenate.

[18] The emulsified composition according to any one of the above [1] to [17], wherein component (B) is a higher alcohol having 14 to 22 carbon atoms, preferably selected from cetyl alcohol, hard alcohol, One or more of fatty alcohol and behenyl alcohol.

[19] The emulsified composition according to any one of [1] to [18] above, wherein component (C) is a ceramide selected from natural ceramides and pseudo-ceramides,

Wherein, the natural ceramides are selected from ceramide types 1-7 of sphingosine, dihydrosphingosine, phytosphingosine or sphingodienol amidated and their N-alkyl forms,

The pseudotyped ceramide is represented by the general formula (2),

(In the formula, ^R15 represents a linear, branched or cyclic saturated or unsaturated hydrocarbon group with 10-22 carbon atoms that can be substituted by a hydroxyl group, or represents a hydrogen atom; ^X9 represents a hydrogen atom, an acetyl group or Glyceryl; R ¹⁶ is a straight-chain, branched or cyclic saturated or unsaturated hydrocarbon group with 5-22 carbon atoms that can be substituted by hydroxyl or amino group, or it means that the omega end of the hydrocarbon group is bound by an ester bond There is a group of straight-chain or branched saturated or unsaturated fatty acids with 8 to 22 carbon atoms that can be substituted by hydroxyl; R ¹⁷ represents a hydrogen atom, or represents that it can be substituted by hydroxyl, hydroxyalkoxy, or alkoxy Or an alkyl group with a total carbon number of 1 to 30 substituted by an acetoxy group.)

[20] The emulsified composition according to any one of [1] to [19] above, wherein component (D) is selected from fatty acid salts obtained from fatty acids having 12 to 24 carbon atoms, Fatty acid amide sulfonates obtained from fatty acids with 14 to 22 carbon atoms, polyoxyethylene alkyl ether phosphates with alkyl groups with 14 to 22 carbon atoms, and N-acyl groups obtained from fatty acids with 12 to 22 carbon atoms One or more kinds of glutamate, preferably selected from fatty acid amide sulfonates obtained from fatty acids having 18 to 22 carbon atoms, polyoxyethylene alkyl groups having alkyl groups having 18 to 22 carbon atoms One or more of ether phosphates and N-acyl glutamate obtained from fatty acids with 18 to 22 carbon atoms, more preferably selected from sodium N-stearyl-N-methyl taurate , N-stearyl-L-glutamic acid arginine, and one or more of polyoxyethylene stearyl ether sodium phosphate.

[21] The emulsified composition according to any one of [4] to [20] above, wherein component (G) is selected from 1,3-butanediol, isoprene glycol, propylene glycol, 1,3 - The average added moles of propylene glycol, dipropylene glycol, diethylene glycol monoethyl ether, polypropylene glycol with a molecular weight of 1 million to 10,000, polyethylene glycol with a molecular weight of 1 million to 10,000, and ethylene oxide are 4~ 20 polyols in polyoxyethylene diglyceryl ether.

[22] The emulsified composition according to any one of [1] to [21] above, wherein the contents and components of components (A), (B), and (C) and component (D) in terms of acid The mass ratio ((A)+(B)+(C)+(D))/(G) of the content of (G) is 0.1-20, preferably 0.2-16, more preferably 0.3-4.

[23] The emulsified composition according to any one of [1] to [22] above, which is an oil-in-water emulsified composition.

[24] Use of the emulsified composition according to any one of the above-mentioned [1] to [23] for coating on the skin.

[25] Use of the emulsified composition according to any one of the above-mentioned [1] to [23] for producing a skin coating agent.

[26] The method for producing an emulsified composition according to any one of [1] to [23] above, which includes the step of adding the first oil containing components (A), (B) and (C) The process of heating and mixing the phases; then, the process of adding the first aqueous phase containing the acid compound and alkali of the component (D), and a part (F1) of the component (F); 2. The process of stirring the oil phase; the process of cooling; and the process of further mixing while adding (F2) which is the remaining component (F) and the second aqueous phase of other water-soluble components.

[27] The method for producing an emulsified composition according to any one of [1] to [23] above, which includes the step of adding the component (A), (B) and (C) to the components ( D) A step of heating and mixing the first oil phase of the acid type compound; Next, a step of adding and mixing the heated first aqueous phase containing a part (F1) of the base and the component (F); Next, adding the heated and mixed with A step of stirring the second oil phase of other oily components; a step of cooling; and a step of further mixing while adding (F2) as the remaining component (F) and a second aqueous phase containing other water-soluble components.

[28] The method for producing an emulsified composition according to any one of the above [1] to [23], which includes the step of adding (A), (B) and (C) to the components ( D) A process of heating and mixing the first oil phase of a part of the acid compound; then, adding the heated first water containing the remaining acid compound and base of the component (D) and a part (F1) of the component (F) Phase and mixing process; Next, the process of mixing the heated second oil phase containing other oily components; Cooling process; Then, further adding (F2) containing the remaining component (F) and other water-soluble components The process of mixing the second aqueous phase.

Example

Embodiment 1～4 and comparative example 1～2

An oil-in-water emulsion composition having the composition shown in Table 1 was produced, and the stability and feeling in use (no rough feeling, refreshing moist feeling, and no sticky feeling) were evaluated. The results are shown in Table 1 together.

(Manufacturing method)

The ingredients of the first oil phase (combined ingredients containing ingredients (A)~(C)) are heated and mixed at 80~90°C, and the second oil heated to 80~90°C is added thereto under the stirring of the propeller (300rpm). 1 water phase (an aqueous solution containing component (D) and part of water (F1) in component (F), the amount of (F1) water is 45% of the emulsified composition after manufacture), and then add and heat to 80 The second oil phase (ingredient (E) and other oily ingredients) at ~90°C. After stirring with a homogenizer (7000rpm), cool to 25°C under propeller stirring (300rpm), and add the second water phase ((F2) as the residual component (F) of the first water phase) and other water-soluble ingredients ). Thus, an oil-in-water emulsion composition was obtained.

(Evaluation method)

(1) Stability:

The accelerated storage test was performed on the emulsified compositions of Examples and Comparative Examples. The accelerated storage test is a cycle test, and the storage temperature is varied in a day from 15°C to 60°C (cycle of 15°C to 60°C/day) for 7 days. The emulsion compositions of Examples and Comparative Examples after the accelerated storage test were observed with an optical microscope under polarized light to confirm the presence or absence of crystals. The presence or absence of crystals was evaluated by the following criteria.

AA: No crystallization was observed.

A: Crystals were slightly observed.

B: Small crystals were observed.

C: Needle crystals were observed.

(2) Feeling in use (no rough feeling, refreshing and moist feeling, no greasy feeling):

The panelist applied 0.5 to 0.6 g of each emulsified composition on the face while sliding it with a finger, and evaluated it according to the following four-level criteria. The result of the evaluation is expressed by the total value of the evaluations of the three special evaluation panel members.

"No rough feeling": evaluation from the time of coating to immediately after coating.

4: Roughness is not felt.

3: Roughness is hardly felt.

2: Slight roughness is felt.

1: Rough.

"Refreshing moist feeling": Evaluation within 3 minutes immediately after application.

4: Good.

3: Slightly good.

2: Not so good.

1: Not good.

"No slippery feeling": Evaluation within 3 minutes immediately after application.

4: No stickiness.

3: Almost no slippery feeling.

2: Slightly slippery.

1: There is a slippery feeling.

[Table 1]

*1: Component (D) is the acid content

*2: KSG-16 (manufactured by Shin-Etsu Chemical Co., Ltd.); (Dimethicone/Vinyl Dimethicone) Crosspolymer (25%) and Dimethicone mixture

The compositions obtained by the examples shown in Table 1 were not observed crystallization of ceramides through an optical microscope, so they were stable, and were confirmed as α-gels by wide-angle X-ray diffraction. The gum phase is independent of oil droplets produced by cross-linked polysiloxane, and it is judged to form lamellar sheets.

Embodiment 5~11

Oil-in-water emulsion compositions with the compositions shown in Table 2 were produced in the same manner as in Examples 1 to 4, and the stability and use feeling (no rough feeling, refreshing moist feeling, and non-greasy feeling) were evaluated. The results are shown in Table 2 together.

In addition, the compositions obtained in Examples were stable because no or almost no crystals of ceramides were observed by an optical microscope, and were confirmed to be α-gels by wide-angle X-ray diffraction. In addition, α-gel and oil droplets generated from the crosslinked polysiloxane were observed, and it was judged that a lamellar sheet was formed.

[Table 2]

*1: Component (D) is the acid content

*2: KSG-16 (manufactured by Shin-Etsu Chemical Co., Ltd.); (Dimethicone/Vinyl Dimethicone) Crosspolymer (25%) and Dimethicone mixture

Example 12~25

An oil-in-water emulsion composition having the composition shown in Table 3 was produced in the same manner as in Examples 1 to 4, and the stability and use feeling (no rough feeling, refreshing moist feeling, and no slippery feeling) were evaluated. The results are shown in Table 3 together.

In addition, the compositions obtained in the examples were all stable because almost no crystals of ceramide were observed by an optical microscope, and were confirmed to be α-gels by wide-angle X-ray diffraction. In addition, α-gel and oil droplets derived from the crosslinked polysiloxane were observed, and it was judged that lamellar sheets were formed.

[table 3]

*1: Component (D) is the acid content

*2: KSG-16 (manufactured by Shin-Etsu Chemical Co., Ltd.); (Dimethicone/Vinyl Dimethicone) Crosspolymer (25%) and Dimethicone mixture

Test example 1

Regarding the emulsified composition of Example 7, a photograph ( FIG. 1( b )) observed with ordinary light by an optical microscope and a photograph observed with polarized light ( FIG. 1( a )) are shown.

As shown in FIG. 1( b ), relatively large oil droplets were observed, which were oil droplets of the crosslinked polysiloxane containing component (E). The continuous phase is the water phase, and the relatively small oil droplets have a spherical sheet structure, which can be seen as white in the polarized photo as shown in Figure 1(a). When the small oil droplets that appear to be white are spherical sheets, they can be confirmed as shown in Fig. 1(a1) in the enlarged photograph. In addition, the structure of α-gel can be confirmed by wide-angle X-ray diffraction (Bragg angle 21~23°). In the case of lamellar sheet formation, peaks can be observed at the Bragg angle ratio of 1:2:3:4 by small angle X-ray diffraction (Bragg angle 0.3~5°). The emulsified composition of the present invention is concentrated by using a centrifugal separator, and then measured by small-angle X-ray diffraction. As can be seen from the above, the continuous phase of the composition of the present invention is an aqueous phase, which can stabilize Good sex and usability.

Example 7 and Comparative Example 3

An oil-in-water emulsion composition having the composition shown in Table 4 was produced in the same manner as in Examples 1 to 4, and the stability and use feeling (no rough feeling, refreshing moist feeling, and non-greasy feeling) were evaluated. In addition, the lasting feeling of moisturizing was evaluated. The results are shown in Table 4 together. In addition, Example 7 is the same substance as that described in Table 2 above.

(Evaluation method for the lasting feeling of moisturizing)

Three panelists evaluated the "refreshing moist feeling" 1 hour after applying 0.5 to 0.6 g of each emulsion composition to the face according to the following criteria. The results were evaluated by the total of three evaluations.

4: Refreshing and moist.

3: slightly refreshing and moist.

2: Slightly not refreshing and moist.

1: Not refreshing and moist.

[Table 4]

*1: Component (D) is the acid content

*2: KSG-16 (manufactured by Shin-Etsu Chemical Co., Ltd.); (Dimethicone/Vinyl Dimethicone) Crosspolymer (25%) and Dimethicone mixture

Example 26, 27

The oil-in-water emulsion composition of the composition shown in Table 5 was manufactured similarly to Examples 1-4. The obtained compositions were all confirmed to be α-gels by wide-angle X-ray diffraction. In addition, α-gel and oil droplets formed from cross-linked polysiloxane were observed. In addition, roughness was suppressed, and the refreshing moist feeling was good, and no slippery feeling was felt.

[table 5]

*1: Component (D) is the acid content

*2: KSG-16 (manufactured by Shin-Etsu Chemical Co., Ltd.); (Dimethicone/Vinyl Dimethicone) Crosspolymer (25%) and Dimethicone mixture

Example 28, 29, 30

An oil-in-water emulsion composition having the composition shown in Table 6 was produced in the same manner as in Examples 1 to 4. The obtained compositions were all confirmed to be α-gels by wide-angle X-ray diffraction. In addition, α-gel and oil droplets formed from cross-linked polysiloxane were observed. In addition, roughness was suppressed, and the refreshing moist feeling was good, and no slippery feeling was felt.

[Table 6]

*1: Component (D) is the acid content

*2: KSG-16 (manufactured by Shin-Etsu Chemical Co., Ltd.); (Dimethicone/Vinyl Dimethicone) Crosspolymer (25%) and Dimethicone mixture

*3: KSG-18A (manufactured by Shin-Etsu Chemical Co., Ltd.); (dimethicone/phenylvinyl dimethicone) crosspolymer (15%) and diphenylsiloxane Mixture of phenyl trimethicone

Example 31, 32, 33

The oil-in-water emulsion composition of the composition shown in Table 7 was manufactured similarly to Examples 1-4. The obtained compositions were all confirmed to be α-gels by wide-angle X-ray diffraction. In addition, α-gel and oil droplets formed from cross-linked polysiloxane were observed. In addition, roughness was suppressed, and the refreshing moist feeling was good, and no slippery feeling was felt.

[Table 7]

*2: KSG-16 (manufactured by Shin-Etsu Chemical Co., Ltd.); (Dimethicone/Vinyl Dimethicone) Crosspolymer (25%) and Dimethicone mixture

Claims (16)

1. emulsification composition, wherein,

Contain following composition (A), (B), (C), (D), (E) and (F):

(A) fatty acid monoglyceride;

(B) carbon number is 10 ~ 24 higher alcohol;

(C) ceramide type;

(D) anion surfactant;

(E) be selected from the cross-linking type polysiloxanes more than a kind or 2 kinds in (Dimethicone/Vinyl Dimethicone) cross linked polymer, (polydimethylsiloxane/phenyl vinyl polydimethylsiloxane) cross linked polymer and (vinyldimethicone/lauryl polydimethylsiloxane) cross linked polymer;

(F) water,

And, composition (A), (B), (C) and be converted into the content of composition (D) of acid and the mass ratio ((A)+(B)+(C)+(D))/(E)=1 ~ 125 of the content of composition (E).

2. emulsification composition as claimed in claim 1, wherein,

The mass ratio (D)/(E) that is converted into the content of the content of composition (D) of acid and composition (E) is 0.1 ~ 15.

3. emulsification composition as claimed in claim 1 or 2, wherein,

Further contain (G) IOB and be 1.5 ~ 3.5 polyhydric alcohol.

4. emulsification composition as claimed in claim 3, wherein,

Composition (A), (B), (C) and be converted into the content of composition (D) of acid and the mass ratio ((A)+(B)+(C)+(D))/(G) of the content of composition (G) is 0.1 ~ 20.

5. such as claim 3 or 4 described emulsification compositions, wherein,

The content of composition (G) is 0.001 ~ 20 quality %.

6. such as each described emulsification composition in the claim 1 ~ 5, wherein,

Further contain composition (B), (C), (E) oil preparation in addition.

7. such as each described emulsification composition in the claim 1 ~ 6, wherein,

The mass ratio (B)/(C) of composition (B) and content (C) is 0.2 ~ 5.

8. such as each described emulsification composition in the claim 1 ~ 7, wherein,

The content of composition (A) is 0.001 ~ 10 quality %, the content of composition (B) is 0.001 ~ 10 quality %, the content of composition (C) is 0.001 ~ 10 quality %, and the content that is converted into acid of composition (D) is 0.01 ~ 3 quality %, and the content of composition (E) is 0.0025 ~ 4 quality %.

9. such as each described emulsification composition in the claim 1 ~ 8, wherein,

The content of composition (A) is 0.05 ~ 3 quality %, and the content of composition (B) is 0.1 ~ 3 quality %, and the content of composition (C) is 0.1 ~ 5 quality %, and the content that is converted into acid of composition (D) is 0.05 ~ 2 quality %, and the content of composition (E) is 0.0025 ~ 4 quality %.

10. such as each described emulsification composition in the claim 1 ~ 9, wherein,

Composition (A) for be selected from by carbon number be in the fatty acid monoglyceride that obtains of 10 ~ 24 straight chain fatty acid more than a kind or 2 kinds.

11. such as each described emulsification composition in the claim 1 ~ 10, wherein,

Composition (B) for be selected from carbon number be in 14 ~ 22 the higher alcohol more than a kind or 2 kinds.

12. such as each described emulsification composition in the claim 1 ~ 11, wherein,

Composition (C) is the ceramide type that is selected from natural type ceramide and the false type ceramide,

Wherein, the natural type ceramide is selected from the Cer EOS that sphingol, dihydrosphingosine, phytosphingosine or sheath ammonia dienol be amidated ~ 7 types and their N-alkyl body,

False type ceramide is represented by general formula (2),

In the formula, R ¹⁵The carbon number that expression can be replaced by hydroxyl is the saturated or undersaturated alkyl of 10 ~ 22 straight chain, side chain or ring-type, or the expression hydrogen atom; X ⁹Expression hydrogen atom, acetyl group or glyceryl; R ¹⁶For being the saturated or undersaturated alkyl of 5 ~ 22 straight chain, side chain or ring-type by hydroxyl or the amino carbon number that replaces, perhaps being illustrated on the ω end of this alkyl by ester bond and being combined with the group that the carbon number that can be replaced by hydroxyl is the saturated or undersaturated fatty acid of 8 ~ 22 straight chain or side chain; R ¹⁷The expression hydrogen atom, perhaps expression can be 1 ~ 30 alkyl by the total carbon atom number of hydroxyl, hydroxy alkoxy base, alkoxyl or acetoxyl group replacement.

13. such as each described emulsification composition in the claim 1 ~ 12, wherein,

Composition (D) for be selected from by carbon number be the soap that obtains of 12 ~ 24 fatty acid, by carbon number be the fatty acid amide sulfonate that obtains of 14 ~ 22 fatty acid, have polyoxyethylene alkyl ether phosphate that carbon number is 14 ~ 22 alkyl and by carbon number be in the N-acyl glutamate that obtains of 12 ~ 22 fatty acid more than a kind or 2 kinds.

14. such as each described emulsification composition in the claim 1 ~ 13, wherein,

Described emulsification composition is O/W emulsion composition.

15. each described emulsification composition is being used for coating the purposes that skin uses in the claim 1 ~ 14.

16. each described emulsification composition is for the manufacture of the purposes in the skin smears in the claim 1 ~ 14.

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