KR102170742B1 - Skin cosmetics - Google Patents

Abstract

The present invention provides a nonionic surfactant (component A), at least one compound selected from the group consisting of 1,2-alkanediol and phenoxyethanol having 5 to 10 carbon atoms (component B), dipropylene glycol (component C) , Myristoyl glutamate (component D) and water (component E).

Description

Skin cosmetics

The present invention relates to a skin cosmetic.

Conventionally, in cosmetic compositions, nonionic surfactants such as polyoxyethylene fatty acid ester and fatty acid polyglyceryl have been used as components for solubilizing poorly soluble components such as fragrances and cleaning components for cleansing cosmetics. In addition, in the cosmetic composition, from the viewpoint of increasing the antiseptic power, 1,2-alkanediol or phenoxyethanol may be blended.

For example, in Patent Document 1, as a cleansing lotion having excellent cleansing power against oil and fat contamination and less sticky after use, (A) 70 to 95% by weight of water, (B) polyhydric alcohol, (C ) Polyoxyethylene (caprylic/capric acid) glyceryl, (D) polyoxyethylene glyceryl isostearic acid, (E) polyvinylpyrrolidone, polyoxyalkylene diglyceryl ether, polyethylene glycol monolaurate, Disclosed is a non-washable cleansing lotion composition comprising at least one selected from diethoxyethyl succinate and bisethoxy diglycol cyclohexane-1,4-dicarboxylic acid.

Japanese Patent Publication No. 2012-214406

However, in the system containing 1,2-alkanediol or phenoxyethanol, there is a problem that the temperature stability of the nonionic surfactant is liable to decrease.

An object of the present invention is a skin cosmetic product having excellent stability in a skin cosmetic comprising a nonionic surfactant and at least one compound selected from the group consisting of 1,2-alkanediol and phenoxyethanol having 5 to 10 carbon atoms. Is to provide.

The skin cosmetic of the present invention is a skin cosmetic comprising the following components A, B, C, D and E:

Component A: nonionic surfactant

Component B: At least one compound selected from the group consisting of 1,2-alkanediol and phenoxyethanol having 5 to 10 carbon atoms

Component C: dipropylene glycol

Component D: Myristoyl Glutamate

Component E: Water.

According to the present invention, in a skin cosmetic comprising a nonionic surfactant and at least one compound selected from the group consisting of 1,2-alkanediol and phenoxyethanol having 5 to 10 carbon atoms, a skin cosmetic product having excellent stability Can provide.

The skin cosmetic composition of the present invention includes a nonionic surfactant; At least one compound selected from the group consisting of 1,2-alkanediol and phenoxyethanol having 5 to 10 carbon atoms; Dipropylene glycol; Myristoyl glutamate; And it contains at least water. In the present specification, the "nonionic surfactant" is referred to as "component A"; The above "one or more compounds selected from the group consisting of 1, 2-alkanediol and phenoxyethanol having 5 to 10 carbon atoms" is referred to as "component B"; The "dipropylene glycol" as "component C"; The "myristoyl glutamate" as "component D"; The "water" may be referred to as "component E".

Although the mechanism of the skin cosmetic composition of the present invention excellent in stability is not clear, it is estimated as follows. In skin cosmetics containing nonionic surfactants and at least one compound selected from the group consisting of 1,2-alkanediol and phenoxyethanol having 5 to 10 carbon atoms, between nonionic surfactants forming micelles , It is considered that the curvature of micelles decreases and becomes unstable when the hydrophobic moiety contains 1,2-alkanediol or phenoxyethanol having relatively large carbon atoms of 5 to 10. In the skin cosmetic of the present invention, it is considered that by blending dipropylene glycol and myristoyl glutamate, the curvature of micelles increases and stability is excellent.

Component A is a "nonionic surfactant". Component A functions as, for example, a cleaning agent component in a cleansing cosmetic or as a component that solubilizes poorly soluble components such as fragrances.

Examples of the component A include polyoxyethylene alkyl ethers such as polyoxyethylene lauryl ether, polyoxyethylene cetyl ether, and polyoxyethylene stearyl ether; Polyoxyethylene polyoxypropylene alkyl ethers such as polyoxyethylene polyoxypropylene lauryl ether, polyoxyethylene polyoxypropylene cetyl ether, polyoxyethylene polyoxypropylene stearyl ether, and polyoxyethylene polyoxypropylene decyl tetradecyl ether; Polyoxyethylene alkylphenyl ethers such as polyoxyethylene octylphenyl ether and polyoxyethylene nonylphenyl ether; Sorbitan fatty acid esters such as sorbitan monolaurate, sorbitan monostearate, and sorbitan monooleate; Polyoxyethylene sorbitan fatty acid esters such as polyoxyethylene sorbitan monolaurate, polyoxyethylene sorbitan monostearate, and polyoxyethylene sorbitan trioleate; Glycerin fatty acid esters such as glyceryl laurate, glyceryl myristic acid, glyceryl stearate, glyceryl isostearate, and glyceryl behenate; Polyoxyethylene glyceryl monostearate, polyoxyethylene glyceryl monooleate, polyoxyethylene glyceryl triisostearate, glyceryl polyoxyethylene (caprylic/capric acid) glyceryl, polyoxyethylene glyceryl isostearic acid, etc. Ethylene fatty acid glyceryl; Polyglycerol fatty acid esters such as diglyceryl monostearate, decaglyceryl monooleate, polyglyceryl caprylic acid, and polyglyceryl lauric acid; Polyoxyethylene fatty acid esters such as polyethylene glycol monolaurate and polyethylene glycol monostearate; Polyoxyethylene castor oil; Hardened castor oil; Polyoxyethylene hydrogenated castor oil; Polyoxyethylenelanolin; And polyoxyethylene reduced lanolin. Among them, when used in combination with component B, the temperature stability tends to decrease, and from the viewpoint that the effect of improving the temperature stability according to the composition of the present invention is more remarkably exhibited, component A is a polyglycerin fatty acid ester. It is desirable. As for component A, only 1 type may be used and 2 or more types may be used.

The HLB (Hydrophile-Lipophile Balance) of component A is not particularly limited, but, for example, from the viewpoint of improving the cleansing power of skin cosmetics, it is preferably 9.0 or more, more preferably 10.0 or more, and preferably 15.5. Below. In the present specification, the HLB can be obtained by the Griffin method. HLB in the case of using a plurality of components A can be obtained as a weighted average of the HLB of each component A.

The content of component A in 100% by mass of the skin cosmetic composition of the present invention is preferably 0.1% by mass or more, more preferably 1.0% by mass or more, and still more preferably 2.0 from the viewpoint of improving cleansing power and solubilizing power. It is not less than mass%, and is preferably 10.0 mass% or less, more preferably 7.0 mass% or less, and still more preferably 5.5 mass% or less from the viewpoints of stability, safety, and stickiness reduction of skin cosmetics. The content of component A is the total amount of all components A contained in the skin cosmetic of the present invention.

Component B is "at least one compound selected from the group consisting of 1,2-alkanediol and phenoxyethanol having 5 to 10 carbon atoms". By blending component B, the antiseptic power of skin cosmetics can be improved.

The 1,2-alkanediol has 5 to 10 carbon atoms from the viewpoint of antiseptic power. Examples of the 1,2-alkanediol include 1,2-pentanediol, 1,2-hexanediol, 1,2-octanediol, and 1,2-decanediol. As for the said 1,2-alkanediol, only 1 type may be used and 2 or more types may be used. Among them, 1,2-octanediol and 1,2-decanediol are preferable from the viewpoint of antiseptic power.

The content of component B in 100% by mass of the skin cosmetic of the present invention is preferably 0.005% by mass or more, more preferably 0.01% by mass or more, and still more preferably 0.1 from the viewpoint of improving the antiseptic power of the skin cosmetic. It is mass% or more, and from the viewpoint of stability and safety of skin cosmetics, it is preferably 5.0 mass% or less, more preferably 3.0 mass% or less, and still more preferably 2.0 mass% or less. The content of component B is the total amount of all components B contained in the skin cosmetic of the present invention.

Among them, it is preferable that component B contains phenoxyethanol as an essential component from the viewpoint of reducing irritation. That is, component B is preferably phenoxyethanol or phenoxyethanol and 1,2-alkanediol having 5 to 10 carbon atoms. The content of phenoxyethanol in 100% by mass of the skin cosmetic composition of the present invention is preferably 0.01% by mass or more, more preferably 0.1% by mass or more, preferably 3.0% by mass or less, and more preferably 1.5% by mass. % Or less.

Component C is "dipropylene glycol" (some abbreviated as "DPG"). By blending component C, the stability of skin cosmetics can be improved. This is presumed to be because the affinity between the component A and the aqueous solvent is improved by blending the component C, or because the number of aqueous components solvated in the hydrophilic group portion of the component A increases, thereby increasing the curvature of the micelles.

The content of component C in 100% by mass of the skin cosmetic of the present invention is preferably 0.8% by mass or more, more preferably 1.5% by mass or more, and still more preferably 3.0% by mass or more from the viewpoint of stability of the skin cosmetic. , Preferably 25.0% by mass or less, more preferably 20.0% by mass or less, and still more preferably 15.0% by mass or less.

Component D is "myristoyl glutamate". By blending component D, the stability of skin cosmetics can be improved. This is presumed to be because, by blending the component D, the curvature of the micelles increases as the component D orients at the interface (hydrophilic group) of the micelles and the electrostatic repulsion increases.

Component D is not particularly limited, but sodium myristoyl glutamate and potassium myristoyl glutamate are preferable. As for component D, only 1 type may be used and 2 or more types may be used.

The content of component D in 100% by mass of the skin cosmetic of the present invention is preferably 0.06% by mass or more, more preferably 0.09% by mass or more, and preferably 0.5% by mass or less from the viewpoint of stability of the skin cosmetic. , More preferably, it is 0.25 mass% or less, More preferably, it is 0.2 mass% or less. The content of component D is the total amount of all components D contained in the skin cosmetic of the present invention.

Component E is "water". Component E plays a role as a medium for aqueous cosmetics such as lotions.

The content of component E in 100% by mass of the cosmetic composition of the present invention is preferably 50.0% by mass or more, more preferably 60.0% by mass or more, still more preferably 70.0% by mass or more, and from the viewpoint of containing other components , Preferably it is 98.0 mass% or less, More preferably, it is 95.0 mass% or less, More preferably, it is 90.0 mass% or less.

From the viewpoint of improving the cleansing power of the skin cosmetic, the skin cosmetic of the present invention is additionally "PPG-14 diglyceryl" as component F, that is, polyoxypropylene diglyceryl ether (average added mole number of oxypropylene = 14 ) May contain.

The content of component F in 100% by mass of the cosmetic composition of the present invention is preferably 0.01% by mass or more, more preferably 0.05% by mass or more, and still more preferably 0.1% by mass from the viewpoint of improving the cleansing power of the skin cosmetic. It is not less than %, and from the viewpoint of storage stability, it is preferably 8.0% by mass or less, more preferably 6.0% by mass or less, and still more preferably 4.0% by mass or less.

The skin cosmetic of the present invention may further contain "N-palm oil fatty acid acyl-L-arginine ethyl DL-pyrrolidone carboxylic acid salt" as component G from the viewpoint of improving the antiseptic power of the skin cosmetic. As the component G, CAE (manufactured by Ajinomoto Corporation), etc. are mentioned, for example.

The content of the component G in 100% by mass of the skin cosmetic of the present invention is preferably 0.001% by mass or more, more preferably 0.005% by mass or more, further preferably 0.01 from the viewpoint of improving the antiseptic power of the skin cosmetic. It is mass% or more, and from the viewpoint of storage stability, it is preferably 0.1 mass% or less, more preferably 0.08 mass% or less, and still more preferably 0.05 mass% or less.

The skin cosmetic of the present invention may further contain a "buffer" as component H from the viewpoint of stabilizing pH and preventing a decrease in formulation stability due to a decrease in pH. When using a buffering agent, it is preferable to add so that the pH of the skin cosmetic of the present invention is in the range of 4.0 to 7.5, and more preferably so that the pH is in the range of 5.0 to 7.0. Further, when a buffering agent is included in the skin cosmetic, the pH can be stabilized, but since the electrolyte concentration increases, the solubility of the component A in water decreases, and the micelles become more difficult to stabilize. On the other hand, in particular, by using the component C together, micelles can be sufficiently stabilized.

As component H, for example, citric acid and/or salt thereof, tartaric acid and/or salt thereof, gluconic acid and/or salt thereof, acetic acid and/or salt thereof, phosphoric acid and/or salt thereof, Tromethamol (trishydroxymethylaminomethane), and the like. As said salt of component H, sodium salt, potassium salt, etc. are mentioned. Among them, the component H is preferably citric acid and/or a salt thereof (especially sodium citrate), phosphoric acid and/or a salt thereof (particularly, sodium dihydrogen phosphate, disodium hydrogen phosphate, potassium dihydrogen phosphate, dipotassium hydrogen phosphate). As for component H, only 1 type may be used and 2 or more types may be used.

The content of component H in 100% by mass of the skin cosmetic composition of the present invention is preferably 0.1% by mass or more, more preferably 0.15% by mass or more, from the viewpoint of storage stability, preferably It is 0.5 mass% or less, More preferably, it is 0.4 mass% or less, More preferably, it is 0.35 mass% or less. The content of component H is the total amount of all components H contained in the skin cosmetic of the present invention.

The skin cosmetic of the present invention is further selected from the group consisting of cocoyl glutamate and lauric acid PEG-12 (i.e., polyethylene glycol ester of lauric acid (average added mole number of oxyethylene = 12)) The above compounds may be optionally contained. In the present specification, the "one or more compounds selected from the group consisting of cocoyl glutamate and lauric acid PEG-12" may be referred to as "component I". By blending component I, the stability of skin cosmetics can be improved. This is because component I is oriented at the interface (hydrophilic group) of micelles by blending component I, resulting in increased electrostatic repulsion (in the case of cocoyl glutamate), or steric hindrance due to the hydration phase (laurin It is estimated that this is because the curvature of micelles increases due to the acid PEG-12).

As component I, more specifically, sodium cocoyl glutamate (cocoyl glutamate Na), potassium cocoyl glutamate, and PEG-12 laurate are mentioned. As for component I, only 1 type may be used and 2 or more types may be used.

When the skin cosmetic of the present invention contains component I, the total amount of the content of component D and the content of component I in 100% by mass of the skin cosmetic of the present invention is preferably 0.06% by mass or more from the viewpoint of stability of the skin cosmetic. , More preferably 0.09% by mass or more, preferably 0.5% by mass or less, more preferably 0.25% by mass or less, and still more preferably 0.2% by mass or less. The total amount of the content of the component D and the content of the component I is the total amount of all the components D and I contained in the skin cosmetic of the present invention.

When the skin cosmetic of the present invention contains component I, it is preferable that the skin cosmetic of the present invention substantially does not contain component H, which is a buffering agent. In addition, in the present specification, "substantially no buffering agent" means, more specifically, the skin cosmetic of the present invention does not contain a buffering agent, or the content of the buffering agent in 100% by mass of the skin cosmetic of the present invention is preferably Means 0.05 mass% or less, more preferably 0.01 mass% or less.

The skin cosmetic of the present invention may further optionally contain other components other than the above. Other components include, for example, surfactants other than component A, component D and component I (cationic surfactants, anionic surfactants, amphoteric surfactants, etc.), lower alcohols, polyhydric alcohols, ultraviolet absorbers, powder, antioxidants, Additives such as preservatives, flavors, coloring agents, chelating agents, refreshing agents, thickening agents, vitamins, neutralizing agents, amino acids, whitening agents, anti-inflammatory agents, deodorants, extracts of animals and plants, and sequestering agents for metal ions. As for the components other than the above, only 1 type may be used and 2 or more types may be used.

In addition, when the skin cosmetic of the present invention does not substantially contain an oily component selected from the group consisting of ester oil, fat or oil, hydrocarbon oil, lead, higher fatty acid, silicone oil, and higher alcohol, the effect of the present invention is further enhanced. Remarkably. More specifically, the skin cosmetic of the present invention does not contain the oily component, or the content of the oily component in 100% by mass of the skin cosmetic of the present invention is preferably 0.1% by mass or less, more preferably 0.01% by mass. Below. In the case of an emulsified cosmetic containing the oily component, the nonionic surfactant is relatively difficult to destabilize.

When the skin cosmetic of the present invention is particularly a cleansing cosmetic, the skin cosmetic of the present invention may contain pullulan. By blending pullulan, it is preferable because the friction between the skin and the nonwoven fabric etc. is reduced when the makeup is wiped off by impregnating the cleansing cosmetic with a nonwoven fabric or the like, or when wiping the makeup with a sheet product impregnated with the cleansing cosmetic. The content of pullulan in 100 mass% of the skin cosmetic of the present invention is preferably 0.01 mass% or more, more preferably 0.03 mass% or more, from the viewpoint of reducing friction during wiping, and slippery during wiping. From the viewpoint of reduction, it is preferably 0.2% by mass or less, and more preferably 0.1% by mass or less.

Although it does not specifically limit as a formulation of the skin cosmetic of this invention, For example, various formulations, such as a lotion (lotion), a gel, a natural spray, a roll-on, and a sheet (paper), are mentioned. Among them, a lotion (lotion) is more preferable.

The skin cosmetic of the present invention is not particularly limited, but, for example, a cleansing cosmetic, a moisturizing cosmetic, a whitening cosmetic, a cosmetic for acne care, an anti-aging cosmetic (for example, to suppress wrinkles, to suppress sagging, etc.) Skin care cosmetics such as; Scalp care cosmetics (for example, for the purpose of moisturizing, suppressing sebum, etc.); Deodorant cosmetics; Sunblock cosmetics; Shaving cosmetics; And body cleaning agents. Among them, it is more preferable that the cosmetic of the present invention is a cleansing cosmetic. The skin cosmetics of the present invention may be any of cosmetics, quasi-drugs, pharmaceuticals, and miscellaneous goods, for example.

The part to which the skin cosmetic of the present invention is applied is not particularly limited, and the face (for example, forehead, around the eyes, around the eyes, cheeks, around the mouth, etc.), arms, elbows, back of hands, fingertips, legs, knees, heels , Neck, armpits, back, and scalp.

The skin cosmetic composition of the present invention can be prepared by mixing each of the above constituents and stirring using a known method, for example, a paddle mixer.

When the skin cosmetic of the present invention is a cleansing cosmetic, the cleansing cosmetic may be preferably used in both a use method of washing off after makeup removal, or a method of not washing off after makeup removal (for example, wiping). have. The method of using the cleansing cosmetic is not particularly limited, and for example, a method of using a known cleansing cosmetic may be mentioned. Specifically, for example, a method of removing the cleansing cosmetic by taking it off the hand and fusing it directly with the makeup on the skin; A method of impregnating the cleansing cosmetic with a fabric (woven fabric, non-woven fabric, etc.) such as cotton, and wiping off makeup on the skin with the fabric. In addition, a method of preparing a sheet product in which the cleansing cosmetic material is impregnated into a sheet substrate in advance, and wiping off the makeup with the sheet product may also be mentioned. The skin after removing makeup may or may not be washed off. That is, the skin cosmetic of the present invention may be a cleansing cosmetic to be washed off or a cleansing cosmetic to be washed off. Among them, the skin cosmetic of the present invention is preferably a cleansing cosmetic (particularly, a cleansing cosmetic for wiping off) used without washing.

When the skin cosmetic of the present invention is a cleansing cosmetic, a sheet product for cleansing is obtained by impregnating the cleansing cosmetic with the sheet substrate. That is, the sheet product includes at least the sheet base material and the cleansing cosmetic material impregnated with the sheet base material. The sheet product may contain components other than the sheet base material and the cleansing cosmetic.

The sheet base material is not particularly limited, and is a sheet-like support capable of impregnating the cleansing cosmetic. As the sheet substrate, a woven fabric or a nonwoven fabric is preferable. The sheet substrate may be a laminate (that is, a laminated sheet), for example, a laminate of a woven fabric, a laminate of a nonwoven fabric, a laminate of a woven fabric and a nonwoven fabric, or the like. The sheet base material is preferably a sheet base material containing a nonwoven fabric, and more preferably a nonwoven fabric from the viewpoints of feeling of use and ease of processing. Examples of the nonwoven fabric include a spunbond nonwoven fabric, a spunlace nonwoven fabric, a thermal bond nonwoven fabric, a needle punch nonwoven fabric, and a stitch bond nonwoven fabric.

The fibers constituting the woven or nonwoven fabric are not particularly limited, and examples thereof include natural fibers, synthetic fibers, semi-natural fibers, and the like. Examples of the natural fibers include cotton, pulp, silk, cellulose, hemp, linter, and kapok. Examples of the synthetic fiber include nylon fiber, polyester fiber (eg, polyethylene terephthalate fiber, polybutylene terephthalate fiber, etc.), acrylic fiber, polyolefin fiber (eg, polypropylene fiber, polyethylene fiber, etc.). Can be mentioned. Rayon, acetate, etc. are mentioned as said semi-natural fiber. As for the said fiber, only 1 type may be used and 2 or more types may be used. Further, a blended fiber made of two or more of the above fibers may be used.

The unit weight of the sheet substrate is not particularly limited, but from the viewpoint of a feeling of wiping, it is preferably 20 to 100 g/m 2, more preferably 25 to 80 g/m 2.

The sheet substrate can be produced by a known and commonly used manufacturing method depending on the type of woven fabric or nonwoven fabric. In addition, a commercial item may be used as the sheet substrate. Although it does not specifically limit as a commercial item, For example, Daiwabo Polytechnic make, brand name "RH"; Daiwabo Polytech Co., Ltd. make, brand name "AS-40"; The product made by Futamura Chemical Co., Ltd., a brand name "TCF404WJ"; The unitica Co., Ltd. product, a brand name "Cot Ace A060S/A18"; The unitica Corporation make, brand name "Cot Ace C030S/A18"; Kuraray Co., Ltd. product, brand name "Kuraflex JP2445B019"; The Kuraray Co., Ltd. product, a brand name "Kuraflex JP0509B056"; The Kuraray Co., Ltd. product, a brand name "Kuraflex JP4250H023"; Asahi Kasei Co., Ltd. make, brand name "Vemly made JP254"; The Asahi Kasei Co., Ltd. make, brand name "Vemly's RE75K"; The Sansho Shigyo Corporation make, brand name "Sanmoa SP8740"; The Sansho Shigyo Corporation make, brand name "Sanmoa SP8748"; The Inogami Corporation make, brand name "M1-30-2PE", etc. are mentioned.

In the sheet product, the mass ratio of the impregnated cleansing cosmetic to the sheet substrate is not particularly limited, but it is preferable that the cleansing cosmetic is 1.0 to 10.0 parts by mass per 1.0 parts by mass of the sheet substrate, and more Preferably it is 1.5 to 7.0 mass parts.

The shape of the sheet product is a sheet shape. Thereby, it is excellent in usability in a form of use for wiping the skin (skin), and also excellent in portability. The planar shape of the sheet is not particularly limited, and examples thereof include polygons such as squares (eg, square, rectangle, etc.) and triangles; Round, oval, semicircular; Crescent; Barrel-shaped; Solid; The shape of a character, etc. are mentioned. Among them, a square is preferable from the viewpoint of productivity, usability, and packaging properties. The sheet product of the present invention may be subjected to molding such as a cutout portion, a cutout portion, and an uneven portion. The surface area of one side of the sheet of the sheet product is not particularly limited, but from the viewpoints of usability, portability, packaging properties, etc., it is preferably 100 to 3000 cm 2, more preferably 150 to 1000 cm 2.

The method of using the sheet product is not particularly limited, but a method of wiping off makeup on the skin with the sheet product may be mentioned. The sheet product is preferably a wipe-off sheet product used by wiping the skin.

Example

Hereinafter, the present invention will be described in more detail based on examples and the like, but the present invention is not limited to these examples. In addition, the compounding amount and content are amounts converted into pure powder, and represent "mass%" unless otherwise specified.

Examples 1 to 45, Comparative Examples 1 to 4 and Reference Examples 1 to 2 (Preparation of Skin Cosmetics)

For the skin cosmetics of Examples, Comparative Examples and Reference Examples, according to the compositions shown in Tables 1 to 5, it was prepared by a commercial method. The pH of the skin cosmetic of Example 1 at 25°C was 6.1, and the pH of the skin cosmetic of Example 40 at 25°C was 5.5.

Details of each raw material in Examples, Comparative Examples, Reference Examples, and Prescription Examples are as follows. In addition, the amounts shown in Tables 1 to 5 and each formulation are not the amount of the product, but the amount of each component (the amount of the active ingredient).

PEG-6 (caprylic acid/capric acid) glyceryl: 　Koyo Fine Chemical Co., Ltd., polyoxyethylene (caprylic acid) glyceryl, HLB: 14.5

Caprylic acid polyglyceryl-3: 　 manufactured by Evonik Nutrition & Care GmbH, brand name "TEGO(R) Cosmo P 813", HLB: 11.1

Polyglyceryl laurate-10: manufactured by Nikko Chemicals, brand name "NIKKOL Decaglyn 1-L", polyglyceryl monolaurate, HLB: 17.1

Isostearic acid PEG-10BG: manufactured by Nihon Emulsion, brand name "EMALEX BGIS-110", HLB: 10.0

Isostearic acid PEG-65BG: manufactured by Nippon Emulsion, brand name "EMALEX BGIS-165", HLB: 16.0

Phenoxyethanol: 　manufactured by Koyo Fine Chemical, brand name "Caprecto PE-1"

1,2-octanediol: 　V.MANE FIL SA manufactured, brand name "1,2-OCTANEDIOL", caprylyl glycol

Dipropylene glycol: 　Asahi Glass, brand name "DPG-FC"

Myristoyl glutamate Na: 　Ajinomoto company make, brand name "Amisoft MS-11", N-myristoyl-L-sodium glutamate

Cocoyl Glutamic Acid Na: 　Ajinomoto Corporation make, brand name "Amisoft ECS-22SB", N-palm oil fatty acid acyl-L-sodium glutamate

PEG-12 lauric acid: manufactured by Kao Corporation, brand name "Emanon 1112"

PPG-14 diglyceryl: 　Sakamoto Yakuhin Kogyo, brand name "SY-DP14T", polyoxypropylene diglyceryl ether

N-palm oil fatty acid acyl-L-arginine ethyl DL-pyrrolidone carboxylate: 　Ajinomoto company make, brand name "CAE", cocoyl arginine ethyl PCA

Citric acid Na: 　The Showa Kako company make, brand name "trisodium citrate (crystal) S", sodium citrate

Citric acid: 　Fuso Chemical Industry Co., Ltd.manufactured, brand name "Purified citric acid M (crystal)"

Pullulan: 　Manufactured by Hayashibara, brand name ``PULLULAN (COSMETIC GRADE)''

About the skin cosmetics of each Example, a comparative example, and a reference example, the stability at -3 degreeC and 50 degreeC was evaluated as follows.

(Stability evaluation (-3℃))

The skin cosmetics (100 ml each) of each Example, Comparative Example, and Reference Example were stored for 7 days in a -3°C thermostat, then visually observed in an environment of -3°C, and evaluated according to the following criteria. The results are shown in Tables 1 to 5.

◎ (Excellent): Colorless and transparent, and no insoluble matter is recognized.

○ (Good): A little turbidity is perceived, but insoluble matters are not recognized.

△ (Can be used): Some insoluble matters are perceived.

× (defect): Insoluble matters are reliably recognized.

(Stability evaluation (50℃))

Skin cosmetics (100 ml each) of each Example, Comparative Example and Reference Example were stored for 7 days in a 50°C thermostat, then visually observed in a 50°C environment, and evaluated according to the following criteria. The results are shown in Tables 1 to 5.

◎ (Excellent): Colorless and transparent, and no insoluble matter is recognized.

○ (Good): A little turbidity is perceived, but insoluble matters are not recognized.

△ (Can be used): Some insoluble matters are perceived.

× (defect): Insoluble matters are reliably recognized.

[Table 1]

[Table 2]

[Table 3]

[Table 4]

As the results of Tables 1 to 4 show, the skin cosmetics of each Example containing component A, component B, component C, component D, and component E were excellent in stability. On the other hand, it can be seen that the skin cosmetics of Comparative Example 1 not containing component C and Comparative Example 2 not containing component D had a stability problem.

[Table 5]

As the result of Table 5 shows, the skin cosmetics of each Example containing component A, component B, component C, component D, and component E were excellent in stability. On the other hand, it can be seen that the skin cosmetics of Comparative Example 3 not containing component C and Comparative Example 4 not containing component D had a stability problem.

In addition, as shown in the reference example, when the skin cosmetic material does not substantially contain the component H, which is a buffering agent, even when the component I is used in place of the component D of the skin cosmetic composition of the present invention, the same effect as the present invention can be obtained. I can. That is, a skin cosmetic composition containing component A, component B, component C, component I, and component E and substantially no component H can exhibit the same effects as in the present invention.

(Cleansing power evaluation)

About each skin cosmetic of Examples 1-5, the cleansing power was evaluated as follows.

0.2 g of foundation was applied to artificial skin (manufactured by Burex, brand name "Bio Skin Plate", white), and left for 12 hours in an environment at 25°C, and then used for evaluation.

Using cotton (1.5 cm long x 1.5 cm wide) impregnated with 1 g of each skin cosmetic of Examples 1 to 5, the artificial skin to which the foundation was applied was rubbed back and forth five times, and the degree of removal of the foundation was visually observed. .

As a result, when each of the skin cosmetics of Example 1 (Component A HLB 14.8), Example 3 (Component A HLB 13.5) and Example 4 (Component A HLB 12.6) was used, the foundation was completely removed. , The skin cosmetic had excellent cleansing power. In the case of using the skin cosmetic of Example 2 (HLB 10.0 of component A), the foundation was removed to the extent that a little remains, and the skin cosmetic had a good cleansing power. On the other hand, when the skin cosmetic of Example 5 (HLB 16.0 of component A) was used, the foundation clearly remained, and the cleansing power of the skin cosmetic was insufficient.

(Evaluation of no stickiness)

In addition, for each skin cosmetic of Examples, no stickiness was evaluated as follows.

With cotton impregnated with each skin cosmetic, immediately after applying the skin cosmetic to the inside of the forearm, the presence or absence of stickiness of the application part was evaluated.

As a result, although a little sticky was felt in Example 7, it was a usable level, and other examples showed excellent properties without stickiness.

Examples 46-48

The skin cosmetics of Examples 46 to 48 were prepared by blending pullulan with the skin cosmetics of Example 1. The content of pullulan in 100% by mass of the skin cosmetic of Example 46 is 0.03% by mass, the content of pullulan in 100% by mass of the skin cosmetic of Example 47 is 0.07% by mass, and pullulan in 100% by mass of the skin cosmetic of Example 48 The content of was 0.1% by mass.

(Evaluation of friction during wiping)

With the cotton impregnated with the skin cosmetics of Examples 1 and 46 to 48, the cheeks in the state in which the makeup (foundation) was applied was rubbed in a reciprocation three times to evaluate the friction with the skin. As a result, compared with the skin cosmetic of Example 1, the skin cosmetic of Example 46 had slightly lower friction. Compared with the skin cosmetics of Example 1, the skin cosmetics of Examples 47 and 48 clearly had low friction.

Prescription Example 1: Cleansing Lotion

1.0% by mass of PEG-6 (caprylic acid/capric acid) glycerides

Caprylic acid polyglyceryl-3　　　　　　　　　　　1.0 mass%

Polyglyceryl lauric acid-10　　　　　　　　　　 2.0 mass%

Phenoxyethanol　　　　　　　　　　　　　　　 0.3% by mass

Dipropylene glycol　　　　　　　　　　　　　 10.0 mass%

Myristoyl glutamic acid Na　　　　　　　　　　 0.03 mass%

Purified water　　　　　　　　　　　　　　　　　　　　　　　 Balance

N-palm oil fatty acid acyl-L-arginine ethyl·DL-pyrrolidone carboxylate

0.05% by mass

Citric acid　　　　　　　　　　　　　　　　 　 　 0.02 mass%

Trisodium citrate　　 0.24 mass%

Disodium edetic acid　　　　　　　　　　　 0.1% by mass

Glycerin　　　　　　　　　　　　　　　　　　　 5.0% by mass

Ethanol　　　　　　　　　　　　　　　　　　　　 5.0% by mass

Total　　　　　　　　　　　　　　　　　　　　　100.0 mass%

Prescription Example 2: Cleansing Sheet

＜Cleansing Cosmetics＞

1.0% by mass of PEG-6 (caprylic acid/capric acid) glycerides

Caprylic acid polyglyceryl-3　　　　　　　　　　　 1.0 mass%

Polyglyceryl lauric acid-10　　　　　　　　　　 2.0 mass%

Phenoxyethanol　　　　　　　　　　　　　　　 0.3% by mass

Dipropylene glycol　　　　　　　　　　　　　 10.0 mass%

Myristoyl glutamic acid Na　　　　　　　　　　 0.03 mass%

Purified water　　　　　　　　　　　　　　　　　　　　　 　　 Balance

N-palm oil fatty acid acyl-L-arginine ethyl·DL-pyrrolidone carboxylate

0.05% by mass

Citric acid　　　　　　　　　　　　　　　　　　　 0.02 mass%

Trisodium citrate　　　　　　　　　　　　　 0.24 mass%

Disodium edetic acid　　　　　　　　　　　　　　 0.1% by mass

Glycerin　　　　　　　　　　　　　　　　　　　 5.0% by mass

Ethanol　　　　　　　　　　　　　　　　　　　 5.0% by mass

Spices　　　　　　　　　　　　　　　　　　　　　　0.2 mass%

Pullulan　　　　　　　　　　　　　　　　　　　 0.07 mass%

Total　　　　　　　　　　　　　　　　　　　 　100.0 mass%

<Sheet description>

Non-woven fabric (pulp 50%, rayon 50%) 　　　　 100.0 mass%

With respect to 1.0 parts by mass of the sheet substrate, 4.0 parts by mass of the cleansing cosmetic was impregnated.

Prescription Example 3: Cleansing Lotion

1.0% by mass of PEG-6 (caprylic acid/capric acid) glycerides

Caprylic acid polyglyceryl-3　　　　　　　　　 1.0 mass%

Polyglyceryl laurate-10　　　　　　　　　 2.0% by mass

Phenoxyethanol　　　　　　　　　　　　　　　 0.3% by mass

Dipropylene glycol　　　　　　　　　　　　　 10.0 mass%

Myristoyl glutamic acid Na　　　　　　　　　 0.03 mass%

Purified water　 　　　　　　　　　　　　　　　　　　　 　 Balance

N-palm oil fatty acid acyl-L-arginine ethyl·DL-pyrrolidone carboxylate

0.05% by mass

Disodium edetic acid　　　　　　　　　　　　　 0.1% by mass

Glycerin　　　　　　　　　　　　　　　　　　 5.0 mass%

Ethanol　　　　　　　　　　　　　　　　　　 5.0 mass%

Total　　　　　　　　　　　　　　　　　　　 100.0 mass%

Formulation Example 4: Cleansing Sheet

＜Cleansing Cosmetics＞

1.0% by mass of PEG-6 (caprylic acid/capric acid) glycerides

Caprylic acid polyglyceryl-3　　　　　　　　 1.0% by mass

Polyglyceryl laurate-10　　　　　　　　 2.0% by mass

Phenoxyethanol　　　　　　　　　　　　　　 0.3% by mass

Dipropylene glycol　　　　　　　　　　　　 10.0 mass%

Myristoyl glutamic acid Na　　　　　　　　 0.03% by mass

Purified water　　　　　　　　　　　　　　　　　　　　　　　 Balance

N-palm oil fatty acid acyl-L-arginine ethyl·DL-pyrrolidone carboxylate

0.05% by mass

Disodium edetic acid　　　　　　　　　　　　　 0.1% by mass

Glycerin　　　　　　　　　　　　　　　　　　 5.0 mass%

Ethanol　　　　　　　　　　　　　　　　　　 5.0 mass%

Spices　　　　　　　　　　　　　　　　　　　　　 0.2% by mass

Pullulan　　　　　　　　　　　　　　　　　　 0.07 mass%

Total　　　　　　　　　　　　　　　　　　　 100.0 mass%

<Sheet description>

Non-woven fabric (pulp 50%, rayon 50%)　　 　　100.0 mass%

With respect to 1.0 parts by mass of the sheet substrate, 4.0 parts by mass of the cleansing cosmetic was impregnated.

Industrial availability

The skin cosmetic of the present invention includes, for example, a skin care cosmetic such as a cleansing cosmetic, a moisturizing cosmetic, a whitening cosmetic, an acne care cosmetic, and an anti-aging cosmetic (for the purpose of suppressing wrinkles and sagging, etc.); Scalp care cosmetics (for example, for the purpose of moisturizing, suppressing sebum, etc.); Deodorant cosmetics; Sunblock cosmetics; Shaving cosmetics; It is used in fields such as body cleaning agents.

Claims (5)

As a skin cosmetic comprising the following component A, component B, component C, component D and component E,
Ester oil, fat or oil, hydrocarbon oil, lead, higher fatty acids, silicone oil and higher alcohol, or containing no oily component selected from the group consisting of, or the content of the oily component in 100% by mass of skin cosmetics is 0.1% by mass or less Skin cosmetic:
Component A: Nonionic surfactant comprising polyglycerin fatty acid ester
Component B: At least one compound selected from the group consisting of 1,2-alkanediol and phenoxyethanol having 5 to 10 carbon atoms
Component C: dipropylene glycol
Component D: Myristoyl Glutamate
Component E: Water. The method of claim 1,
Skin cosmetic composition further containing the following component F:
Component F: PPG-14 diglyceryl. The method according to claim 1 or 2,
Skin cosmetics additionally containing the following ingredient G:
Component G: N-palm oil fatty acid acyl-L-arginine ethyl·DL-pyrrolidone carboxylic acid salt. The method according to claim 1 or 2,
Skin cosmetics additionally containing the following ingredient H:
Component H: Buffer. The method according to claim 1 or 2,
Skin cosmetic, a cleansing cosmetic.