Composition

Abstract

The object of this invention is to provide a composition that can form a film with high water-holding capacity that is stably maintained. [Solution] The present invention relates to a composition, etc., containing the following components: (A) Tremella fuciformis polysaccharide, (B) Locust bean gum, and (C) polyethylene glycol with an average degree of polymerization of more than 20.

Description

Technical Field

[0001] The present invention relates to a composition and the like that has high water retention capacity and is capable of forming a stably maintained film.

Background Art

[0002] The skin exhibits its water retention function and barrier function through the balance of lipids and moisture, and protects the living body from external stimuli. In order to fully exert these functions, a firm stratum corneum structure as well as the amount and balance of lipids and moisture are important. From such a viewpoint, replenishment of oily components and moisture has become a key point in skin care. In such replenishment, both can be achieved by applying a cosmetic composition containing these components to the skin, and therefore such compositions are widely used. However, even when these components are replenished, moisture in particular tends to evaporate and is difficult to sufficiently remain in the skin, so development of a composition or the like that retains a moisture-containing film on the skin has been desired.

[0003] On the other hand, polysaccharides such as Tremella fuciformis polysaccharide and locust bean gum are widely used as thickeners to be blended in cosmetics, and are used for purposes such as imparting viscosity (Patent Document 1). In addition, polyethylene glycol is widely used in cosmetics as a surfactant and the like. However, details regarding the formation and maintenance of films with water retention capacity have not been studied.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of Invention

Problems to be Solved by the Invention

[0005] In view of such circumstances, an object of the present invention is to provide a composition that has high water retention capacity and is capable of forming a stably maintained film. [Means for solving the problem]

[0006] In their investigation to solve the above problems, the inventors discovered that by combining a specific polysaccharide and a specific polyethylene glycol, a film with high water-retaining capacity can be formed and such a film can be stably maintained. It is believed that by applying such a composition to the skin, the skin can be moisturized, and the stably maintained film can prevent the evaporation of moisture from the skin, thereby retaining moisture in the skin. Based on these findings, the present invention was completed. In other words, the gist of this invention is as follows:

[0007] , [1] A composition containing the following ingredients (A) to (C). (A) Tremella fuciformis polysaccharide (B) Locust bean gum (C) Polyethylene glycol with an average degree of polymerization of more than 20 [2] The composition wherein the average degree of polymerization of polyethylene glycol of component (C) is 30 or higher. [3] The polyethylene glycol of component (C) is selected from PEG-32 and PEG-400. The aforementioned composition will be exposed. [4] The composition wherein the amount of Tremella fuciformis polysaccharide in component (A) is 0.1 to 10% by mass of the entire composition. [5] The composition wherein the locust bean gum content of component (B) is 0.1 to 10% by mass relative to the entire composition. [6] The composition wherein the content of polyethylene glycol with an average degree of polymerization of component (C) greater than 20 is 0.1 to 20% by mass relative to the entire composition. [7] The composition wherein the mass ratio (A) / (B) of the content of component (A) to the content of component (B) is 0.1 to 5. [8] The composition as described above, wherein the mass ratio (A)+(B) / (C) of the contents of component (A) and component (B) to component (C) is 0.02 to 10. [9] The composition as described above, which is in a cream form.

[10] The composition as described above, wherein the composition is an external skin preparation.

[11] The composition as described above, wherein the external skin preparation is a cosmetic.

[12] A film forming method comprising applying a composition containing the following components (A) to (C) to the skin. (A) Tremella fuciformis polysaccharide (B) Locust bean gum (C) Polyethylene glycol having an average degree of polymerization of more than 20 [Effects of the Invention]

[0008] According to the present invention, it is possible to provide a composition that has high water holding capacity and is capable of forming a stably maintained film. [Modes for Carrying Out the Invention]

[0009] In the present specification, for numerical ranges expressed as "lower limit to upper limit", the upper limit may be "equal to or less than" or "less than", and the lower limit may be "equal to or more than" or "more than".

[0010] Hereinafter, the present invention will be described. However, the present invention is not limited to the following embodiments, and can be freely modified within the scope of the present invention.

[0011] <Composition> One aspect of the present invention relates to a composition (hereinafter sometimes referred to as "the composition of the present invention") containing the following components (A) to (C). (A) Tremella fuciformis polysaccharide (B) Locust bean gum (C) Polyethylene glycol having an average degree of polymerization of more than 20. The composition of the present invention has high water-retention capacity and forms a stably maintained film. Although the mechanism of action of the composition of the present invention is not clear, a specific polysaccharide and polyethylene glycol in combination stably maintain a film with high water content. It is also presumed that by applying the composition to the skin, the composition is spread thinly, and a film having high water-retention capacity and being stably maintained is formed.

[0012] In the present specification, the degree of the water-retention capacity of the film formed by the composition of the present invention is not particularly limited. The water-retention capacity can be measured, for example, by the method described in the Examples below, as the amount that allows the prepared composition to stably contain water therein without exuding the contained water.

[0013] The degree of stability of the film formed by the composition of the present invention is not particularly limited. The stability can be measured, for example, as the strength of the film (for example, the restoring force or elasticity of the composition) by preparing the composition and using the method described in the Examples below.

[0014] ≪Component (A) Tremella fuciformis polysaccharide≫ The composition of the present invention contains Component (A), a Tremella fuciformis polysaccharide. The Tremella fuciformis polysaccharide contained in the composition of the present invention is a water-soluble polysaccharide extracted using a solvent from a mushroom belonging to the Tremellaceae family, which may be prepared by a known method, or a commercially available product can be used. For example, Tremoist-TP manufactured by Nippon Seika Co., Ltd. can be used .

[0015] The content of Component (A) in the composition of the present invention may be 0.1 mass% or more, 0.5 mass% or more, or 1 mass% or more, and may be 10 mass% or less, 7.5 mass% or less, or 5 mass% or less relative to the total amount of the composition, and may be any non-contradictory combination of these values. Further, the content may be, for example, 0.1 to 10 mass%. The above range is preferable in that the water-retention capacity and stability of the film become favorable.

[0016] ≪Ingredient (B) Locust bean gum≫ The composition of the present invention contains locust bean gum, which is component (B). The locust bean gum contained in the composition of the present invention is a polysaccharide obtained from the seeds of the carob tree and has galactomannan as its main component. It is characterized by a mannose to galactose ratio of 4:1. The locust bean gum may be prepared by known methods, or commercially available products can be used. For example, GENUGUM type RL-200-J manufactured by CP Kelco Inc. can be used.

[0017] The content of component (B) in the composition of the present invention may be 0.1% by mass or more, 0.5% by mass or more, or 1% by mass or more, and may also be 10% by mass or less, 7.5% by mass or less, or 5% by mass or less, and may be any non-consistent combination thereof. Furthermore, the content may be, for example, 0.1 to 10% by mass. The above range is preferable in that it provides good water retention capacity and stability of the membrane.

[0018] ≪Component (C): Polyethylene glycol with an average degree of polymerization exceeding 20≫ The composition of the present invention contains polyethylene glycol with an average degree of polymerization of component (C) greater than 20. As for polyethylene glycol of component (C) having an average degree of polymerization of more than 20, polyethylene glycol with an average degree of polymerization of preferably 30 to 400 is mentioned. Having the degree of polymerization of polyglycerin within this range is preferable because it results in good water retention capacity and stability of the film. In addition to polyethylene glycol with an average degree of polymerization of more than 20, polyethylene glycol with a degree of polymerization of polyglycerin outside the above range may also be included.

[0019] Preferred specific examples of component (C) include PEG-32 (which may be a mixture with PEG-6), PEG-75, PEG-150, PEG-400, and more preferably... Examples include PEG-32 (which may be a mixture with PEG-6) and PEG-400.

[0020] Component (C) may contain only one type or two or more types.

[0021] The content of component (C) in the composition of the present invention may be 0.1% by mass or more, 0.5% by mass or more, or 1% by mass or more, and may also be 20% by mass or less, 10% by mass or less, or 5% by mass or less, and may be any non-consistent combination thereof. Furthermore, the content may be, for example, 0.1 to 20% by mass. The above range is preferable in that it results in good film stability.

[0022] Furthermore, the mass ratio (A) / (B) of component (A) to component (B) in the present invention is not limited from the viewpoint of excellent water retention capacity and stability of the membrane, but for example, 0.1 to 5 is preferred, and 0.2 to 1 is more preferred.

[0023] Furthermore, the mass ratio (A)+(B) / (C) of component (A), component (B), and component (C) in the present invention is not limited from the viewpoint of excellent film stability, but for example, 0.02 to 10 is preferred, and 0.4 to 8 is more preferred.

[0024] The composition of the present invention may contain an aqueous phase component. Examples of the aqueous phase component include water. In addition to water, the aqueous phase component may be any component that dissolves in water at 25-90°C.

[0025] The composition of the present invention may contain an oil phase component. The oil phase component is not limited to oils, but may also include powders, etc., and may be any component that separates from water after being suspended in water at 25-90°C and allowed to stand for 1 hour.

[0026] In the composition of the present invention, the weight ratio of the aqueous phase component and the oil phase component is not particularly limited, but is preferably 99:1 to 50:50, and more preferably 95:5 to 60:40.

[0027] The compositions of the present invention can be specifically applied to cosmetics, quasi-drugs, pharmaceuticals, etc., and may contain the necessary components as appropriate depending on the application. Examples of dosage forms include topical preparations, and preferred forms of topical preparations include skin preparations. The compositions of the present invention can be manufactured by referring to known manufacturing techniques commonly used in each respective field.

[0028] The composition of the present invention is particularly preferably applied to cosmetics. When applied to cosmetics, it is possible to incorporate a wide range of ingredients commonly used in cosmetics, and there are no limitations on the dosage form or application. Examples of formulations include liquid, emulsion, and semi-solid forms (gel, ointment, paste, cream, etc.). If the dosage form is an emulsifier, it may be an O / W type, W / O / W type, (O1+O2) / W type where the outermost phase is the aqueous phase, or a W / O type, O / W / O type, (W1+W2) / O type where the outermost phase is the oil phase. Cosmetics include facial cleansers, makeup removers, skincare products (lotions, serums, emulsions, creams, etc.), sunscreens, and makeup products.

[0029] The following describes other ingredients that may be included in cosmetics when applicable.

[0030] ≪Optional ingredients≫ The cosmetic composition of the present invention is used in ordinary cosmetic compositions, provided that the effects of the present invention are not impaired. Other ingredients may be added as desired. Examples of such optional ingredients include oils, alcohols, ethers, powders, clay minerals, humectants, surfactants, metal ion chelating agents, pearlescent agents, amino acids, organic amines, polymer emulsions, pH adjusters, vitamins, antioxidants, preservatives, water-soluble polymers, fragrances, solvents such as water, and various active ingredients. Note that only one optional ingredient may be added, or two or more may be added in combination.

[0031] Examples of oils include polar oils, natural oils, and hydrocarbon oils.

[0032] As polar oils, synthetic ester oils include isopropyl myristate, cetyl octanoate, octyldodecyl myristate, isopropyl palmitate, butyl stearate, hexyl laurate, myristyl myristate, decyl oleate, hexyldecyl dimethyloctanoate, cetyl lactate, myristyl lactate, lanolin acetate, isocetyl stearate, isocetyl isostearate, cholesteryl 12-hydroxystearylate, ethylene glycol di-2-ethylhexylate, dipentaerythritol fatty acid ester, N-alkyl glycol monoisostearate, neopentyl glycol dicaprate, diisostearyl malate, glyceryl di-2-heptylundecanoate, trimethylolpropane tri-2-ethylhexylate, trimethylolpropane triisostearate, pentaneerythritol tetra-2-ethylhexylate, glyceryl tri-2-ethylhexanoate, triisoste Trimethylolpropane arate, cetyl 2-ethylhexanoate, 2-ethylhexyl palmitate, glyceryl trimiristic acid, glyceride tri-2-heptyl undecanoate, methyl castor oil fatty acid ester, oleic acid oil, cetostearyl alcohol, acetoglyceride, 2-heptyl undecyl palmitate, diisobutyl adipate, 2-octyldodecyl N-lauroyl-L-glutamate, di-2-heptyl adipate Examples include ethyl undecyl, ethyl laurate, di-2-ethylhexyl sebatate, 2-hexyldecyl myristate, 2-hexyldecyl palmitate, 2-hexyldecyl adipic acid, diisopropyl sebatate, 2-ethylhexyl succinate, ethyl acetate, butyl acetate, amyl acetate, triethyl citrate, octyl methoxycinnamate, 2-ethylhexyl paramethoxycinnamate, and diethylamino hydroxybenzoyl hexyl benzoate.

[0033] Examples of natural oils include avocado oil, camellia oil, turtle oil, macadamia nut oil, corn oil, mink oil, olive oil, rapeseed oil, egg yolk oil, sesame oil, peach kernel oil, wheat germ oil, sasanqua oil, castor oil, linseed oil, safflower oil, cottonseed oil, elm oil, soybean oil, peanut oil, tea seed oil, kaya oil, rice bran oil, cinnamon oil, Japanese tung oil, jojoba oil, wheat germ oil, sunflower oil, triglycerin, glyceryl trioctanoate, and glyceryl triisopalmitate. Examples of hydrocarbon oils include isododecane, isohexadecane, squalane, hydrogenated poly(C6-12)olefins, and hydrogenated polyisobutene.

[0034] Examples of alcohols include monohydric alcohols such as ethanol; dihydric alcohols such as ethylene glycol, 1,3-butylene glycol, trimethylene glycol, 1,2-butylene glycol, propylene glycol, dipropylene glycol, propanediol, 1,2-pentanediol, 3-methyl-1,3-butanediol, tetramethylene glycol, 2,3-butylene glycol, pentamethylene glycol, 2-butene-1,4-diol, hexylene glycol, octylene glycol; trihydric alcohols such as trimethylolpropane; tetrahydric alcohols such as pentaerythritol; pentahydric alcohols such as xylitol; polyhydric alcohol polymers such as triglycerin, tetraglycerin, and polyglycerin; and sugar alcohols such as starch-degrading sugar-reducing alcohols. Ethylene glycol monomethyl ether, ethylene glycol monoethyl ether, ethylene glycol monobutyl ether, ethylene glycol monophenyl ether, ethylene Alcohol alkyl ethers such as ethylene glycol monohexyl ether, ethylene glycol mono-2-methylhexyl ether, ethylene glycol isoamyl ether, ethylene glycol benzyl ether, and ethylene glycol isopropyl ether; Alcohol alkyl ethers such as diethylene glycol monomethyl ether, diethylene glycol monoethyl ether, diethylene glycol monobutyl ether, triethylene glycol monomethyl ether, triethylene glycol monoethyl ether, propylene glycol monomethyl ether, propylene glycol monoethyl ether, propylene glycol monobutyl ether, propylene glycol isopropyl ether, dipropylene glycol methyl ether, dipropylene glycol ethyl ether, and dipropylene glycol butyl ether; Glycerin monoalkyl ethers such as xyl alcohol, ceracyl alcohol, and batyl alcohol; Alcohol polymers such as diethylene glycol, triethylene glycol, polypropylene glycol, tetraethylene glycol, and polyethylene glycol; Examples include glycolid; tetrahydrofurfuryl alcohol; POE-tetrahydrofurfuryl alcohol; POP-butyl ether; POP·POE-butyl ether; tripolyoxypropylene glycerin ether; POP-glycerin ether; POP-glycerin ether phosphate; POP·POE-pentaneerythritol ether, etc.

[0035] Ethers include those that fall under the category of alcohols mentioned above, Examples include ethylene glycol dimethyl ether, ethylene glycol diethyl ether, ethylene glycol dibutyl ether, diethylene glycol dimethyl ether, diethylene glycol diethyl ether, diethylene glycol methyl ethyl ether, ethylene glycol monomethyl ether acetate, ethylene glycol monoethyl ether acetate, ethylene glycol monobutyl ether acetate, ethylene glycol monophenyl ether acetate, ethylene glycol diazibate, ethylene glycol disuccinate, diethylene glycol monoethyl ether acetate, diethylene glycol monobutyl ether acetate, propylene glycol monomethyl ether acetate, propylene glycol monoethyl ether acetate, propylene glycol monopropyl ether acetate, and propylene glycol monophenyl ether acetate.

[0036] The shape of the powder is not particularly limited, and can be spherical, needle-shaped, plate-shaped, etc. Examples include inorganic powders (e.g., talc, kaolin, mica, sericite, muscovite, phlogopite, synthetic mica, red mica, biotite, vermiculite, magnesium carbonate, calcium carbonate, aluminum silicate, barium silicate, calcium silicate, magnesium silicate, strontium silicate, tungstate metal salts, magnesium, silica, alumina, zeolite, barium sulfate, calcined calcium sulfate (calcined gypsum), calcium phosphate, fluorine apatite, hydroxyapatite, ceramic powder, boron nitride, etc.); organic powders (e.g., polyamide resin powder (nylon powder), polyethylene powder, poly(meth)acrylate powder, polystyrene powder, styrene-acrylic acid copolymer resin powder, silicone resin powder, benzoguanamine resin powder, polytetrafluoroethylene powder, cellulose powder, etc.); metal soaps (e.g., Zinc lysitate, calcium palmitate, aluminum stearate; inorganic white pigment (e.g., titanium dioxide, zinc oxide); inorganic red pigments (e.g., iron oxide (red iron oxide), iron titanate, etc.); inorganic brown pigments (e.g., γ-iron oxide, etc.); inorganic yellow pigments (e.g., yellow iron oxide, yellow ochre, etc.); inorganic black pigments (e.g., black iron oxide, lower titanium oxide, etc.); inorganic purple pigments (e.g., mango violet, cobalt violet, etc.); inorganic green pigments (e.g., chromium oxide, chromium hydroxide, cobalt titanate, etc.); inorganic blue pigments (e.g., ultramarine, Prussian blue, etc.); pearl pigments (e.g., titanium dioxide coated mica, titanium dioxide coated... Examples include: bismuth oxychloride, titanium dioxide-coated talc, colored titanium dioxide-coated mica, bismuth oxychloride, fish scale foil, etc.; metal powder pigments (e.g., aluminum powder, copper powder, etc.); organic pigments such as zirconium, barium, or aluminum lake (e.g., organic pigments such as Red 201, Red 202, Red 204, Red 205, Red 220, Red 226, Red 228, Red 405, Orange 203, Orange 204, Yellow 205, Yellow 401, and Blue 404, Red 3, Red 104, Red 106, Red 227, Red 230, Red 401, Red 505, Orange 205, Yellow 4, Yellow 5, Yellow 202, Yellow 203, Green 3, and Blue 1, etc.); natural pigments (e.g., chlorophyll, β-carotene, etc.); and organically modified clay minerals.

[0037] Examples of organically modified clay minerals include hectorite, montmorillonite, saponite, bentonite, and smectite. Alternatively, organically modified clay minerals treated with organic cations are also acceptable, such as dimethyldistearylammonium hectorite (quaternium-18 hectorite, etc.), dimethyldistearylammonium bentonite (quaternium-18 bentonite, quaternium-90 bentonite, etc.), benzyldimethylstearylammonium hectorite, dioctadecyldimethylammonium salt-modified montmorillonite, octadecyldimethylbenzylammonium salt-modified montmorillonite, and dihexadecyldimethylammonium salt-modified montmorillonite, and dimethyldistearylammonium smectite.

[0038] Examples of moisturizing agents include chondroitin sulfate, hyaluronic acid, mucoitin sulfate, carotenoid acid, atelocollagen, cholesteryl-12-hydroxystearate, sodium lactate, dl-pyrrolidone carboxylate, short-chain soluble collagen, diglycerin (EO)PO adduct, Rosa rugosa extract, Achillea millefolium extract, and Melilotus extract.

[0039] When a surfactant is used in combination with the composition of the present invention, examples of surfactants include anionic surfactants, cationic surfactants, amphoteric surfactants, and nonionic surfactants.

[0040] Examples of anionic surfactants include fatty acid soaps (e.g., sodium laurate, sodium palmitate, etc.); higher alkyl sulfate salts (e.g., sodium lauryl sulfate, potassium lauryl sulfate, etc.); alkyl ether sulfate salts (e.g., POE lauryl sulfate triethanolamine, POE lauryl sulfate sodium, etc.); N-acyl sarcosinate (e.g., sodium lauroyl sarcosinate, etc.); higher fatty acid amide sulfonates (e.g., sodium N-myristoyl-N-methyl taurate, sodium coconut oil fatty acid methyl taulide, sodium lauryl methyl taulide, etc.); phosphate salts (e.g., sodium POE oleyl ether phosphate, POE stearyl ether phosphate, etc.); sulfosuccinates (e.g., sodium di-2-ethylhexyl sulfosuccinate, sodium monolauroyl monoethanolamide polyoxyethylene sulfosuccinate, lauryl Sodium polypropylene glycol sulfosuccinate, etc.); alkylbenzene sulfonates (e.g., sodium linear dodecylbenzenesulfonate, linear dodecylbenzenesulfonate triethanolamine, linear dodecylbenzenesulfonic acid, etc.); higher fatty acid ester sulfates (e.g., hydrogenated coconut oil fatty acid glycerin sulfate sodium, etc.); N-acyl glutamates (e.g., monosodium N-lauroyl glutamate, disodium N-stearoyl glutamate, monosodium N-myristoyl-L-glutamate, etc.); sulfurized oils (e.g., belladonna oil, etc.); POE alkyl ether carboxylic acid; POE alkyl allyl ether carboxylic acid salt; α-olefin sulfonate; higher fatty acid ester sulfonate; secondary alcohol sulfate; higher fatty acid alkylolamide sulfate; sodium lauroyl monoethanolamide succinate; N-palmitoyl Examples include ditriethanolamine spartate and sodium caseinate.

[0041] Examples of cationic surfactants include alkyltrimethylammonium salts (e.g., stearyltrimethylammonium chloride, lauryltrimethylammonium chloride, etc.); alkylpyridinium salts (e.g., cetylpyridinium chloride, etc.); distearyldimethylammonium chloride dialkyldimethylammonium salt; poly(N,N'-dimethyl-) chloride 3,5-Methylenepiperidinium; alkylquaternary ammonium salt; alkyldimethylbe Examples include diammonium salts; alkylisoquinolinium salts; dialkylmolionium salts; POE alkylamines; alkylamine salts; polyamine fatty acid derivatives; amyl alcohol fatty acid derivatives; benzalkonium chloride; benzethonium chloride, etc.

[0042] Examples of amphoteric surfactants include imidazoline-based amphoteric surfactants (e.g., 2-undecyl-N,N,N-(hydroxyethylcarboxymethyl)-2-imidazoline sodium, 2-cocoyl-2-imidazolinium hydroxide-1-carboxyethyloxy disodium salt, etc.); and betaine-based surfactants (e.g., 2-heptadecyl-N-carboxymethyl-N-hydroxyethylimidazolinium betaine, lauryldimethylaminoacetic acid betaine, alkyl betaine, amide betaine, sulfobetaine, etc.).

[0043] Nonionic surfactants include polyether-modified silicones (e.g., polyethylene glycol-10 dimethicone, polyethylene glycol-12 dimethicone, PEG-9 polydimethylsiloxyethyl dimethicone, PEG-9 polydimethylsiloxyethyl dimethicone, etc.); polyglycerin-modified silicones (e.g., polyglyceryl-3 disiloxane dimethicone, polyglyceryl-3 polydimethylsiloxyethyl dimethicone, etc.); sorbitan fatty acid esters (e.g., sorbitan monooleate, sorbitan monostearate, sorbitan monoisostearate, sorbitan monolaurate, sorbitan monopalmitate, sorbitan monostearate, sorbitan) Examples of non-hydrophilic nonionic surfactants include: sesquioleates, sorbitan trioleates, diglycerol sorbitan penta-2-ethylhexylate, diglycerol sorbitan tetra-2-ethylhexylate, etc.); glycerin fatty acids (e.g., monocottonseed oil fatty acid glycerin, monoerucate glycerin, sesquioleate glycerin, monostearate glycerin, α,α'-oleate pyroglutamate glycerin, monostearate glycerin malic acid, etc.); propylene glycol fatty acid esters (e.g., propylene glycol monostearate, etc.); POE castor oil and hydrogenated castor oil derivatives (POE castor oil, POE hydrogenated castor oil, etc.); and glycerin alkyl ethers.Also, polyglycerin fatty acid esters (e.g., polyglyceryl monooleate, polyglyceryl monostearate, etc.); POE sorbitan fatty acid esters (e.g., POE sorbitan monooleate, POE sorbitan monostearate, POE sorbitan tetraoleate, etc.); POE sorbitan fatty acid esters (e.g., POE sorbitan monolaurate, POE sorbitan monooleate, POE sorbitan pentaoleate, POE sorbitan monostearate, etc.); POE glycerin fatty acid esters (e.g., POE glycerin monostearate, POE glycerin monoisostearate, POE glycerin triisostearate, etc., POE monooleates, etc.); POE fatty acid esters (e.g., POE distearate, POE monodioleate, ethylene glycol distearate, etc.); POE alkyl ethers (e.g., POE lauryl ether, POE oleyl ether, POE stearyl ether, POE-behenyl ether, POE-2-octyldodecyl ether, POE cholestanol ether, etc.); POE alkylphenyl ethers (e.g., POE nonylphenyl ether, etc.); Pluronic type (e.g., Pluronic®, etc.); POE·POP alkyl ethers (e.g., POE·POP cetyl ether, POE·POP-2-decyltetradecyl ether, POE·POP monobutyl ether, POE·POP hydrogenated lanolin, POE·POP glycerin ether, etc.); Tetra POE·tetraPOP ethylenediazole. Other examples include mine condensates (e.g., tetronic); POE castor oil hydrogenated castor oil derivatives (e.g., POE castor oil, POE hydrogenated castor oil, POE hydrogenated castor oil monoisostearate, POE hydrogenated castor oil triisostearate, POE hydrogenated castor oil monopyroglutamic acid monoisostearate diester, POE hydrogenated castor oil maleic acid, etc.); POE beeswax / lanolin derivatives (e.g., POE sorbitol beeswax, etc.); alkanolamides (e.g., coconut oil fatty acid diethanolamide, lauric acid monoethanolamide, fatty acid isopropanolamide, etc.); POE propylene glycol fatty acid esters; POE alkylamines; POE fatty acid amides; sucrose fatty acid esters; alkyl glucosides; alkyl ethoxydimethylamine oxide; and hydrophilic nonionic surfactants such as trioleyl phosphate.

[0044] Examples of metal ion chelating agents include 1-hydroxyethane-1,1-diphosphonic acid, tetrasodium 1-hydroxyethane-1,1-diphosphonic acid, disodium edetate, trisodium edetate, tetrasodium edetate, sodium citrate, sodium polyphosphate, sodium metaphosphate, gluconic acid, phosphoric acid, citric acid, ascorbic acid, succinic acid, edetate, and trisodium ethylenediaminehydroxyethyl triacetate.

[0045] Examples of pearlescent agents include glycol distearate and titanium mica.

[0046] Examples of amino acids include neutral amino acids (e.g., threonine, cysteine, etc.) and basic amino acids (e.g., hydroxylysine, etc.). Examples of amino acid derivatives include sodium acyl sarcosinate (sodium lauroyl sarcosinate), and acyl sarcosinate. Examples include glutamate, acyl β-alanine sodium, glutathione, and pyrrolidone carboxylic acid.

[0047] Examples of organic amines include monoethanolamine, diethanolamine, triethanolamine, morpholine, triisopropanolamine, 2-amino-2-methyl-1,3-propanediol, and 2-amino-2-methyl-1-propanol.

[0048] Examples of polymer emulsions include acrylic resin emulsion, ethyl polyacrylate emulsion, acrylic resin liquid, polyacrylic alkyl ester emulsion, polyvinyl acetate resin emulsion, and natural rubber latex.

[0049] Examples of pH adjusting agents include buffers such as lactate-sodium lactate, citrate-sodium citrate, and succinate-sodium succinate, and are usually used to adjust the pH of the internal phase (aqueous component).

[0050] Examples of vitamins include vitamins A, B1, B2, B6, C, E and their derivatives. Examples include phosphate, pantothenic acid and its derivatives, and biotin.

[0051] Examples of antioxidants include tocopherols, dibutylhydroxytoluene (BHT), butylhydroxyanisole, pyrosulfites, gallic acid esters, phosphoric acid, citric acid, ascorbic acid, maleic acid, malonic acid, succinic acid, fumaric acid, kephalin, hexametaphosphorate, phytic acid, and ethylenediaminetetraacetic acid.

[0052] Examples of preservatives include parabens and phenoxyethanol.

[0053] Examples of water-soluble polymers include plant-derived polymers (e.g., gum arabic, tragacanth). Gum, galactan, guar gum, carob gum, karaya gum, carrageenan, pectin, agar, quince seed (quince), algae colloid (quince extract), starch (co (Corn, potato, wheat), glycyrrhizic acid); microbial polymers (for example) For example, xanthan gum, dextran, succinoglucan, pullulan, etc.; natural water-soluble polymers such as animal-derived polymers (e.g., collagen, casein, albumin, gelatin, etc.), Semi-synthetic water-soluble polymers such as starch polymers (e.g., carboxymethyl starch, methylhydroxypropyl starch, etc.); cellulose polymers (hydroxypropyl methylcellulose, hydroxyethylcellulose, hydroxypropylcellulose, methylcellulose, ethylcellulose, hydroxypropyl methylcellulose stearoxyl ether, sodium cellulose sulfate, carboxymethylcellulose, sodium carboxymethylcellulose, crystalline cellulose, cellulose powder, etc.); and alginate polymers (e.g., sodium alginate, propylene glycol alginate, etc.). Examples of synthetic water-soluble polymers include vinyl polymers (e.g., polyvinyl alcohol, polyvinyl methyl ether, polyvinylpyrrolidone, carboxyvinyl polymer, etc.); polyoxyethylene polymers other than polyethylene glycol with an average degree of polymerization of more than 20; acrylic polymers (e.g., sodium polyacrylate, polyethyl acrylate, polyacrylamide, etc.); polyethyleneimines; and cationic polymers.

[0054] Various active ingredients include, for example, anti-inflammatory agents (e.g., glycyrrhizic acid derivatives, glycyrrhetinic acid derivatives, salicylic acid derivatives, hinokitiol, zinc oxide, allantoin, etc.); whitening agents (e.g., placenta extract, saxifrage extract, arbutin, resorcinol derivatives, etc.); various extracts (e.g., Phellodendron amurense, Coptis japonica, Lithospermum erythrorhizon, Paeonia lactiflora, Swertia japonica, Birch, Sage, Loquat, Carrot, Aloe vera, Malva sylvestris, Iris ensata, Grape, Coix lacryma-jobi, Luffa gourd, Lily, Saffron, Cnidium officinale, Zingiber officinale, St. John's wort, Ononis sulphureus, Garlic, Chili pepper, Citrus unshiu peel, Angelica acutiloba, Seaweed, etc.), and activators (e.g., Rhodiola rosea, Examples include: yam jelly, photosensitizers, cholesterol derivatives, etc.; blood circulation promoters (e.g., nonylic acid valenylamide, benzyl nicotinate, β-butoxyethyl nicotinate, capsaicin, gingerol, cantharis tincture, ichthamol, tannic acid, α-borneol, tocopherol nicotinate, inositol hexanicotinate, cyclandelate, cinnarizine, trazoline, acetylcholine, verapamil, cepharanthine, γ-oryzanol, etc.); anti-seborrheic agents (e.g., sulfur, thianthol, etc.); and anti-inflammatory agents (e.g., tranexamic acid, thiotaurine, hypotaurine, etc.).

[0055] <Membrane formation method> Another aspect of the present invention relates to a film-forming method (hereinafter sometimes referred to as "the film-forming method of the present invention") which includes applying a composition containing the following components (A) to (C) to the skin. (A) Tremella fuciformis polysaccharide (B) Locust bean gum (C) Polyethylene glycol with an average degree of polymerization of more than 20. Furthermore, all matters described in the section on <Composition> above apply to the description of the film-forming method of the present invention. When the composition of the present invention is applied to the skin, the composition is stretched thinly, forming a film with high water-retaining capacity that remains stable. As a result, when applied to the skin, it moisturizes the skin and retains moisture. Methods known can be used to apply the composition to the skin. [Examples]

[0056] The present invention will be specifically described below with reference to examples, but these are merely illustrative examples of the present invention, and the scope of the present invention is not limited thereto. In this specification, "water-holding capacity" means that the composition stably holds water internally and extrudes the contained water. It refers to the ability to choose not to do something. In this specification, "restoring force" refers to the strength of the force that causes a composition to return to its original shape when stretched. Furthermore, in this specification, "elasticity" refers to the strength of the rebound force that causes a composition to return to its original shape when pressed. The composition of the present invention forms a film with improved resilience and elasticity. Such a film has high water-retaining capacity and maintains its shape stably. As a result, when applied to the skin, it moisturizes the skin and retains moisture.

[0057] [Test 1] Each component of the formulation shown in Table 1 was filled into a 200 mL beaker, mixed uniformly, and then transferred to a 30 g jar container. The mixture was left at 25°C for at least one day to obtain an aqueous gel composition (gel-like cosmetic). The samples of Example and Comparative Example 1 did not flow for more than 5 seconds when tilted 90 degrees (gel It was confirmed that moisture was retained within the gel and not leaking out. In the case of Comparative Example 2, the gel flowed when tilted 90 degrees. This indicates that moisture leaked out of the gel. In other words, the sample in the example was able to hold a large amount of water and had high water-retaining capacity. Comparative Example 1 also had water-retaining capacity, but Comparative Example 2 had insufficient water-retaining capacity. Furthermore, the resilience and elasticity of the gel were measured using the following measurement methods, and the stability of the membrane was evaluated.

[0058] <Measurement method> 1. Restoring force ≪Measuring equipment≫ Rheometer: AR-G2 (manufactured by T.A. Instruments Co., Ltd.) Geometry: 40mm parallel plate <Measurement Conditions> Frequency 1Hz, Measurement temperature 32℃ The storage modulus (G') was measured while applying and then removing strain. ≪Rating≫ The G' value was measured before and after strain application, and the recovery rate (%) of G' was calculated as G' after strain application / G' before strain application. A smaller degree of change (higher recovery rate) before and after strain application indicates higher restoring force. Samples were evaluated based on the following evaluation criteria. (Evaluation Criteria) ◎: G's return rate is 90% or higher ○: G' return rate is 80% or higher △: G' return rate is 75% or higher ×: G' return rate is less than 75%

[0059] 2. Elasticity ≪Measuring equipment≫ Rheometer: AR-G2 (manufactured by T.A. Instruments Co., Ltd.) Geometry: 40mm parallel plate <Measurement Conditions> Frequency 1Hz, measurement temperature 32℃, strain sweep ≪Rating≫ We compared G' when the strain (%) was approximately 0.1. A higher G' indicates greater elasticity. Samples were evaluated based on the following evaluation criteria. (Evaluation Criteria) ◎: G' is 150 Pa or higher ○: G' is 100 Pa or higher △: G' is 50 Pa or higher ×: G' is less than 50 Pa

[0060] 3. Overall evaluation The samples were evaluated based on the following evaluation criteria. (Evaluation Criteria) ◎: Excellent in both recovery rate and elasticity. ○: Either one is ○ △: One of them is △ ×: Either one is ×

[0061] [Table 1]

[0062] <Result> The sample in the example was found to be able to hold a large amount of water by incorporating a combination of components (A) to (C), and also possessed high resilience and elasticity, as well as excellent stability. On the other hand, the sample of Comparative Example 1, which contained PEG-20 instead of component (C), exhibited particularly insufficient elasticity. The sample of Comparative Example 2, which contained xanthan gum instead of components (A) and (B), exhibited insufficient resilience and elasticity.

[0063] <Summary> As described above, it has been shown that compositions containing components (A) to (C) form a film with high water-retaining capacity, and that this film is stably maintained. Applying such compositions to the skin can moisturize the skin and retain its moisture. [Industrial applicability]

[0064] This invention can be applied to topical skin preparations, cosmetics, and the like.

Claims

1. A composition containing the following components (A) to (C). (A) Tremella fuciformis polysaccharide (B) Locust bean gum (C) Polyethylene glycol with an average degree of polymerization of more than 20

2. The composition according to claim 1, wherein the average degree of polymerization of polyethylene glycol of component (C) is 30 or more.

3. The composition according to claim 1, wherein the polyethylene glycol of component (C) is selected from PEG-32 and PEG-400.

4. The composition according to claim 1, wherein the content of Tremella fuciformis polysaccharide in component (A) is 0.1 to 10% by mass of the entire composition.

5. The composition according to claim 1, wherein the locust bean gum content of component (B) is 0.1 to 10% by mass of the entire composition.

6. The composition according to claim 1, wherein the content of polyethylene glycol with an average degree of polymerization of component (C) greater than 20 is 0.1 to 20% by mass of the entire composition.

7. The composition according to claim 1, wherein the mass ratio (A) / (B) of the content of component (A) to the content of component (B) is 0.1 to 5.

8. The composition according to claim 1, wherein the mass ratio (A) + (B) / (C) of the content of component (A) and component (B) to component (C) is 0.02 to 10.

9. The composition according to claim 1, which is in the form of a cream.

10. The composition according to any one of claims 1 to 9, wherein the composition is a topical skin preparation.

11. The composition according to claim 10, wherein the topical skin preparation is a cosmetic.

12. A method for forming a film, comprising applying a composition containing the following components (A) to (C) to the skin. (A) Tremella fuciformis polysaccharide (B) Locust bean gum (C) Polyethylene glycol with an average degree of polymerization of more than 20

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