JPH1157446A - Emulsion type cosmetic - Google Patents

Abstract

PROBLEM TO BE SOLVED: To emulsify an oily substance uniformly by a method in which a main constituent components are an emulsifier, an oily substance, and water, and an enzyme-treated stevior alone as the emulsifier or one enzyme-treated stevior is formulated. SOLUTION: An emulsifier of a nonionic surfactant such as mono-oleic acid sorbitane and mono-isostearic acid sorbitol, an anionic surfactant such as a base for soap and sodium laurate, a cationic surfactant such as stearyltrimethylammonium chloride and lauryltrimethylammonium chloride, and an oily substance such as waxes, hydrocarbon oils, hydrocarbon oils, esters, and silicone oils and water are used for the main constituents of an emulsified cosmetic, and among the components, enzyme-treated stevior alone as an emulsifier, or one enzyme-treated stevior is formulates. By this process, an oily substance can be emulsified homogeneously.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an emulsified cosmetic obtained by emulsifying an oily substance using an enzyme-treated stevia, which is generally used as a sweetener in the food industry, as an emulsifier.

[0002]

2. Description of the Related Art In recent years, studies have been made on the use of a natural or derived surfactant as an emulsifier in terms of safety on the skin. Among them, stevia is also expected as a highly safe natural emulsifier, and has been studied by various emulsification methods.

[0003] Stevia is a sweet component contained in the leaves of Stevia rebaudiana Bertoni, a chrysanthemum plant native to South America. The components in Stevia are Stevioside, Rebaudioside-A, Rebaudioside-B, Zurcoside-A, Rebaudioside-E, Rebaudioside-D and mainly Stevioside and Rebaudioside-A. Consists of In addition, the content of rebaudioside-A has been increased to remove bitterness and improve sweetness.

[0004] However, stevia alone has a weak emulsifying power and it has been difficult to prepare an emulsion which is stable over time. Therefore, use of an emulsifier such as glycerin monostearate as an emulsifying aid (JP-B-02-316)
87, Japanese Patent Publication No. 04-63042) and a method of adding stevia for refining the emulsified particles of a polyhydric alcohol-in-oil emulsion composition and an oil-in-water emulsion composition obtained using lecithin (Japanese Patent Publication No. 07-10338). Although it is used as an emulsifying aid, it has been difficult to study an emulsifying composition in which stevia is mainly used as an emulsifying agent.

[0004]

Means for Solving the Problems The present inventors have conducted intensive studies in view of such circumstances, and as a result, have found high surface activity in enzyme-treated stevia obtained by adding a monosaccharide to a stevia extract.
By using enzymatically treated stevia alone as an emulsifier or mixing with other surfactants, it is possible to emulsify oily substances uniformly and easily produce an emulsified cosmetic with high safety and excellent stability over time. Thus, the present invention has been completed.

[0005] That is, by using enzyme-treated stevia, an emulsifier alone produces a stable emulsion over time, and even when mixed with other surface-active substances, the ability of conventional stevia has been obtained. As described above, it has been found that miniaturization and stabilization of the emulsion are promoted.

[0006] In the present invention, the enzyme-treated stevia used as a component of (A) refers to stevia obtained by extracting and purifying as a sweet component from Stevia rebaudiana Bertoni, a Chrysanthemum plant native to South America, only a sugar transfer reaction. Alternatively, 1 to 30 monosaccharides are added and regulated by a technique using both a sugar transfer reaction and a sugar chain regulation reaction.

[0007] In the food industry in general, enzymatically treated stevia is a glycosyltransferase of stevia that has been developed and marketed to remove bitterness, improve sweetness and sweetness, and is marketed on May 2, 1996.
On the 3rd date, Notification of the Director General of the Ministry of Health and Welfare of the Ministry of Health and Welfare No. 56, "About the labeling of additives based on the Food Sanitation Law", the name is "α-glucosyltransferase-treated stevia" as its name. In addition, fructosyltransferase-treated stevia and another name, fructose-transferred stevia, are distinguished in the notification, but are listed in the Japan Food Additives Association's `` Voluntary Standards for Food Additives Other than Second Edition Chemical Synthetic Products '' It is contained in the enzyme-treated stevia at the stage of the plan, and is described in literatures (Monthly Food Chemical, Vol. 11, No. 1, p. 36-41,
1995).
Therefore, the enzyme-treated stevia is improved by enzymatically adding a monosaccharide to the stevia extract, and refers to glycosylated stevia.

The enzyme-treated stevia in the early stage of development is disclosed in
No. 7-18779, in which α-glucosylglucosyltransferase is allowed to act on a raw material containing stevioside and an α-glucosylglycosyltransferase to produce mainly α-glucosylstevioside, and steviol glycosides other than stevioside. It also contains α-glucosyl glycosyltransferase of the body. Further, in order to improve the sharpness and sharpness of the sweetness, α-1,4 glucosidase is allowed to act on the sugar-added stevia extract produced by the method disclosed in JP-B-57-18779 to adjust the average number of α-glucosyl groups added. There is also a product in which the desired glucose level is controlled by a method (Japanese Patent Publication No. 5-22498). Examples of products of these enzyme-treated stevia include SK manufactured by Nippon Paper Industries Co., Ltd.
There are a sweet series and an αG sweet series of Toyo Seikagaku Co., Ltd., which are composed of components in which 1 to 15 to 20 α-1,4-glucosyl groups are added to the stevia extract, and the average number of added glucose is 4.5. It is as follows.

[0009] As a novel enzyme-treated stevia as a fructosyltransferase-treated stevia, β-beta which has recently been sold under the brand name Vestevia FT90 is available.
There is fructosyl stevioside. This is disclosed in
Based on the method disclosed in -99092, a mixture of stevioside and sucrose is reacted with an enzyme β-fructofuranosidase to add fructose.

In addition, other production and purification methods (Japanese Patent Publication Nos. 58-56628, 59-33360, and 5)
9-33339, JP-B-61-54386, JP-B-63
-37637, JP-B 64-7752, JP-B 1-77
50, Japanese Patent Publication 1-7752, Japanese Patent Publication 4-55678, Japanese Patent Publication 4-53497, Japanese Patent Publication 5-224498, Japanese Patent Publication 5
-71598, Japanese Patent Publication 5-77397, Japanese Patent Publication 5-77
675, JP-B-6-33309, JP-B-6-8647
5, JP-A-61-28363, JP-A-62-15509
6, JP-A-63-87959, JP-A-1-25469
6, JP-A-3-34990, JP-A-3-83558, JP-A-3-262458, JP-A-4-149191, JP-A-6-141881, JP-A-6-298793, JP-A-6-261708, JP-A-8-19393, JP-A-9-
107913) has also been proposed, and stevia produced by these techniques is also an enzyme-treated stevia.

[0011] The enzyme-treated stevia used in the emulsified cosmetic of the present invention is preferably from the viewpoint of emulsion stability.
Products having an average number of added sugars of 0.5 to 8.0, more preferably 1.5 to 4.0, and those containing 75% or more of sugar-added stevioside are good. Specific examples of commercially available products include SK Suite, SK Suite Z3 and SK Suite FZ manufactured by Nippon Paper Industries, and αG Suite manufactured by Toyo Seika. The amount is not particularly limited, but is preferably 0.005 to 20%.

As the emulsifier of the component (A) of the present invention,
The surfactant that can be used in combination with the enzyme-treated stevia is a substance having a hydrophobic part and a hydrophilic part in one molecule, and specifically, a nonionic surfactant commonly used in emulsified cosmetics. , Anionic surfactants, cationic surfactants, amphoteric surfactants, amphiphilic substances and the like.

Examples of the nonionic surfactant include sorbitan monooleate, sorbitan monoisostearate, sorbitan monolaurate, sorbitan monopalmitate, sorbitan monostearate, sorbitan sesquioleate, sorbitan trioleate, and penta-
Sorbitan fatty acid esters such as diglycerol sorbitan 2-ethylhexylate and diglycerol sorbitan tetra-2-ethylhexylate; glycerin fatty acid esters such as glyceryl monostearate glyceryl glyceryl, glyceryl oleate and glyceryl distearate, dioleic monooleate Polyglycerin fatty acid esters such as glyceryl, diglyceryl monoisostearate, decaglyceryl monostearate, decaglyceryl monooleate, and hexaglyceryl monostearate;
Propylene glycol fatty acid esters such as propylene glycol monostearate; fatty acid alkyl glucosides such as methyl glucoside stearate, ethyl glucoside stearate, propyl glucoside stearate, and methyl glucoside oleate; hydrogenated castor oil derivatives; glycerin alkyl ether; POE sorbitan mono POE sorbitan fatty acid esters such as oleate, POE-sorbitan monostearate, POE-sorbitan monooleate, POE-sorbitan tetraoleate; POE-sorbit monolaurate, POE
POE sorbite fatty acid esters such as sorbit monooleate, POE-sorbit pentaoleate, POE-sorbit monostearate; POE-glycerin monostearate, POE-glycerin monoisostearate, POE-glycerin triisostearate, etc. POE glycerin fatty acid esters such as POE monooleate, POE distearate, POE monodioleate, and ethylene glycol distearate
E fatty acid esters; POE lauryl ether, PO
E oleyl ether, POE stearyl ether, PO
POE alkyl ethers such as E-behenyl ether, POE2-octyldodecyl ether, POE cholestanol ether; POE octylphenyl ether, POE
POE alkyl phenyl ethers such as E nonyl phenyl ether and POE dinonyl phenyl ether;
Pluronic type such as block polymerization of E-POP; P
OE • POP cetyl ether, POE • POP2-decyltetradecyl ether, POE • POP monobutyl ether, POE • POP hydrogenated lanolin, POE • POP
POE / POP alkyl ethers such as glycerin ether; Tetra POE / tetra POP such as Tetronic
Ethylenediamine condensates; POE castor oil, POE
Hardened castor oil, POE hardened castor oil monoisostearate, POE hardened castor oil triisostearate, POE
PO such as hydrogenated castor oil monopyroglutamic acid monoisostearate diester, POE hydrogenated castor oil maleic acid, etc.
E castor oil-hardened castor oil derivative; POE beeswax lanolin derivative such as POE sorbitol beeswax; alkanolamide such as coconut oil fatty acid diethanolamide, lauric acid monoethanolamide, fatty acid isopropanolamide; POE propylene glycol fatty acid ester; POE alkylamine; Fatty acid amide;
Sucrose fatty acid esters such as sucrose monostearate, sucrose distearate, sucrose tristearate;
OE nonylphenylformaldehyde condensate; alkylethoxydimethylamine oxide; trioleyl phosphoric acid; silicone-based surfactants such as polyether-modified silicone, alcohol-modified silicone, and amino-modified silicone.

Examples of the anionic surfactant include soap base materials, fatty acid soaps such as sodium laurate, sodium palmitate, potassium laurate, potassium myristate, potassium palmitate and potassium stearate; sodium lauryl sulfate, lauryl sulfate Higher alkyl sulfates such as potassium; bile salts such as sodium cholate and sodium deoxycholate; acyl lactates such as sodium stearoyl lactate and sodium isostearyl lactate; alkyl POE
Alkyl ether sulfates such as triethanolamine lauryl sulfate and POE sodium lauryl sulfate;
N-acyl sarcosine acids such as sodium lauroyl sarcosine; higher fatty acid amide sulfonates such as N-myristoyl-N-methyltaurine sodium, coconut oil fatty acid methyl tauride sodium, sodium lauryl methyl tauride sodium; POE sodium oleyl ether phosphate; Phosphate esters such as POE stearyl ether phosphoric acid; sulfosuccinates such as sodium di-2-ethylhexyl sulfosuccinate, sodium monolauroyl monoethanolamide polyoxyethylene sulfosuccinate, sodium lauryl polypropylene glycol sulfosuccinate; linear dodecylbenzenesulfonic acid Alkylbenzene sulfones such as sodium, linear dodecylbenzenesulfonic acid triethanolamine and linear dodecylbenzenesulfonic acid N-acyl glutamates such as monosodium N-lauroylglutamate, disodium N-stearoylglutamate and monosodium N-myristoyl-L-glutamate; higher fatty acid ester sulfates such as hardened coconut oil fatty acid sodium glycerin sulfate; A sulfated oil such as a funnel oil;
POE alkyl ether carboxylic acid; POE alkyl allyl ether carboxylate; α-olefin sulfonate; higher fatty acid ester sulfonate; secondary alcohol sulfate salt; higher fatty acid alkylolamide sulfate salt; lauroyl monoethanolamide succinic acid Sodium; N-palmitoyl aspartate ditriethanolamine; sodium caseinate; silicone surfactants such as sulfonic acid-modified silicone;

Examples of the cationic surfactant include alkyltrimethylammonium salts such as stearyltrimethylammonium chloride and lauryltrimethylammonium chloride; dialkyldimethylammonium salts such as distearyldimethylammonium chloride; poly (N,
N'-dimethyl-3,5-methylenepiperidinium),
Alkylpyridinium salts such as cetylpyridinium chloride;
Alkyl quaternary ammonium salts; alkyl dimethyl benzyl ammonium salts; alkyl isoquinolinium salts; dialkyl morphonium salts; POE alkyl amines; alkyl amine salts; polyamine fatty acid derivatives; amyl alcohol fatty acid derivatives; benzalkonium chloride; benzethonium chloride, and the like. It is.

Examples of the amphoteric surfactant include alkyl glycine salts; carboxymethyl glycine salts;
Acylaminoethyl-N-2-hydroxyethylglycine salt; alkylpolyaminopolycarboxyglycine salt;
Alkylaminopropionate; alkyliminodipropionate; N-acylaminoethyl-N-2-
N-alkyl-N, N-dimethylammonium-N-propylsulfonate; N-alkyl-hydroxyethyl pyropionate; alkyldimethylaminoacetate betaine; fatty acid amidopropyldimethylaminoacetate betaine; alkyldihydroxyethylaminoacetate betaine; N, N-dimethylammonium-N- (2-hydroxypropyl) sulfonic acid salt; N-fatty acid amidopropyl-N, N-dimethylammonium-N- (2-hydroxypropyl) sulfonic acid salt;

The amphiphilic substance refers to a substance having a nonpolar group and a polar group in one molecule, and is classified separately from general nonionic surfactants and ionic surfactants. Lauric acid, myristic acid, palmitic acid, stearic acid, behenic (behenic) acid, oleic acid, 12-hydroxystearic acid, undecylenic acid,
Higher fatty acids such as tollic acid, isostearic acid, linoleic acid, linoleic acid, eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA); lauryl alcohol, cetyl alcohol, stearyl alcohol, behenyl alcohol, myristyl alcohol, oleyl alcohol, cetostearyl alcohol, etc. A straight chain alcohol;
Monoglycerides, glycerol; branched fatty alcohols such as monostearyl glycerin ether (bacyl alcohol), 2-decyltetradecinol, lanolin alcohol, cholesterol, phytosterol, hexyldecanol, isostearyl alcohol, octyldodecanol; Monoalkyl ethers, monoalkylamines, and compounds having a sterol skeleton and derivatives thereof (cholesterol, phytosterol, N-lauroyl-L-glutamate di (cholesteryl octyldodecyl), N-lauroyl-L-glutamate di (phytosteryl-2-) Octyldodecyl) etc.); diacyl ester type glycerophospholipids (phosphatidylcholine, phosphatidylethanolamine, phosphatidylinositol) Le, phosphatidylserine, phosphatidic acid, phosphatidyl glycerol,
Phosphatidylserine) and their hydrogenated products and hydroxides; monoacyl ester-type glycerophospholipids (lysophosphatidylcholine, lysophosphatidylethanolamine, lysophosphatidylinositol, etc.) and their hydrogenated products; plasmalogens; sphingomyelin; glycolipids Galactosylceramide, glucosylceramide, sulfatide, ganglioside and the like) and synthetic glycolipids similar thereto; saponin and the like. Among them, those having a nonionic polar group or a high content thereof in the structure thereof are particularly preferable, and one or two or more selected from these are used in combination.

These surfactants are blended in the emulsifier composition of the emulsifying cosmetic of the present invention in the ratio of enzyme-treated stevia: surfactant = 10: 0 to 0.1: 9.9, and the enzyme-treated stevia is added. In particular, from 10: 0
4: 6 is preferred.

The oily substance of component (B) used in the emulsified cosmetic of the present invention includes oils and fats, waxes, hydrocarbon oils, esters, silicone oil, fluorosilicone oil, and the like.
Any known skin cosmetic oily substance such as perfluoropolyether oil may be used.For example, liquid oils include avocado oil, camellia oil, turtle oil, macadamia nut oil, corn oil, mink oil, olive oil, Rapeseed oil, egg yolk oil, sesame oil, persic oil, wheat germ oil, sasanqua oil, castor oil, linseed oil, safflower oil, cottonseed oil, eno oil, soybean oil, peanut oil, teaseed oil, kaya oil, rice bran oil, sinagiri Oil, Japanese drill oil, jojoba oil,
Germ oil, triglycerin, glyceryl trioctanoate,
Glycerin triisopalmitate and the like. As solid oils and fats, cacao butter, coconut oil, horse fat, hardened coconut oil, palm oil, tallow, sheep butter, hardened tallow, palm kernel oil, lard, beef bone fat, mocro kernel oil, hardened oil, beef leg fat , Molle, hydrogenated castor oil and the like. The waxes include beeswax, candelilla wax, cotton wax, carnauba wax, bayberry wax, ibota wax, whale wax, montan wax, nuka wax, lanolin, kapok wax, lanolin acetate, liquid lanolin, sugar cane wax, lanolin fatty acid isopropyl, hexyl laurate, reduced lanolin, and jojo. Barrow, hard lanolin, shellac wax and the like. Examples of hydrocarbon oils include liquid paraffin, ozokerite, squalane, pristane,
There are paraffin, ceresin, squalene, petrolatum, microcrystalline wax and the like. As synthetic ester oils, isopropyl myristate, cetyl octoate,
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 hydroxystearate, ethylene glycol di-2-ethylhexylate,
Dipentaerythritol fatty acid ester, N-alkyl glycol monoisostearate, neopentyl glycol dicaprate, diisostearyl malate, di-2
Glycerin heptylundecanoate, trimethylolpropane tri-2-ethylhexanoate, trimethylolpropane triisostearate, pentaneerythritol tetra-2-ethylhexanoate, glyceryl tri-2-ethylhexanoate, trimethylolpropane triisostearate, cetyl 2-ethylhexanoate, 2-
Ethylhexyl palmitate, glycerin trimyristate, glyceride tri-2-heptylundecanoate, methyl ester of castor oil fatty acid, oleic oil, cetostearyl alcohol, acetoglyceride,
2-heptylundecyl palmitate, diisobutyl adipate, N-lauroyl-L-glutamic acid-2-
Octyl dodecyl ester, di-2-heptylundecyl adipate, ethyl laurate, di-2 sebacate
-Ethylhexyl, 2-hexyldecyl myristate,
2-hexyldecyl palmitate, 2-hexyldecyl adipate, diisopropyl sebacate, 2-succinic acid
Examples include ethylhexyl, ethyl acetate, butyl acetate, amyl acetate, and triethyl citrate. Examples of the silicone oil include chain polysiloxanes such as dimethylpolysiloxane, methylphenylpolysiloxane, and methylhydrogenpolysiloxane; cyclic polysiloxanes such as decamethylpolysiloxane, dodecamethylpolysiloxane, and tetramethyltetrahydrogenpolysiloxane Oils such as silicone resin and silicone rubber forming a three-dimensional network structure;

The oily substance is used alone or in combination of two or more kinds, and its amount is 70% by weight or less in the emulsified cosmetic.

The amount of water used for the component (C) of the present invention is 0.1
The content is preferably from 25 to 95% by weight, depending on the form of the desired cosmetic.

The emulsifying cosmetic of the present invention may contain, in addition to the above-mentioned components (A), (B) and (C), various raw materials usually used in cosmetics, as long as the effects of the present invention are not lost. Can be used. For example, lower alcohols include ethanol, propanol, isopropanol and the like. Polyhydric alcohols used as humectants and for the purpose of lowering the interfacial tension of the aqueous phase include polyethylene glycol, propylene glycol, dipropylene glycol, 1,3-butylene glycol, hexylene glycol, glycerin, diglycerin and the like. Other humectants such as sorbitol, xylitol, maltitol, maltose, D-mannitol, erythritol, trehalose, water candy, glucose, fructose, lactose, sodium chondroitin sulfate,
Examples include sodium hyaluronate, sodium adenosine phosphate, sodium lactate, pyrrolidone carboxylate, glucosamine, cyclodextrin and the like. As the water-soluble polymer, gum arabic, tragacanth, galactan, carob gum, guar gum, karaya gum, carrageenan,
Pectin, agar, quince seed (quince), starch (rice, corn, potato, wheat),
Plant-based polymers such as alge colloid (brown algae extract) and locust bean gum; xanthan gum, gellan gum,
Microbial macromolecules such as dextran, succinoglucan, pullulan; animal macromolecules such as collagen, casein, albumin, gelatin; carboxymethyl starch;
Starch-based polymers such as methylhydroxypropyl starch; methylcellulose, nitrocellulose, ethylcellulose, methylhydroxypropylcellulose, hydroxyethylcellulose, cellulose sodium sulfate,
Cellulosic polymers such as hydroxypropylcellulose, sodium carboxymethylcellulose, crystalline cellulose and cellulose powder; alginic acid polymers such as sodium alginate and propylene glycol alginate; vinyl polymers such as polyvinyl methyl ether and carboxyvinyl polymer; Ethylene polymer; Polyoxyethylene polyoxypropylene copolymer polymer; Acrylic polymer such as sodium polyacrylate, polyethyl acrylate, polyacrylamide; Polyethylene imine; Cationic polymer;
Examples include inorganic water-soluble polymers such as bentonite, aluminum magnesium silicate, laponite, hectorite, and silicic anhydride. Drugs (including free substances, acid or base salt forms and ester forms) include vitamin A oil, retinol, retinol palmitate, retinol acetate, inosit, pyridoxine hydrochloride, benzyl nicotinate, nicotinamide, and nicotinic acid DL -Α- tocopherol, magnesium ascorbate, vitamin D2
(Ergocasiferol), vitamin D3, dl-
α-tocopherol, dl-α-tocopherol acetate, pantothenic acid, vitamins such as biotin, hormones such as estradiol, ethinylestradiol, arginine, aspartic acid, amino acids such as cystine, cysteine, methionine, serine, leucine, tryptophan, allantoin, Glycyrrhetinic acid, anti-inflammatory agents such as azulene, arbutin, magnesium ascorbate,
Examples include whitening agents such as sodium ascorbate, astringents such as zinc oxide, tannic acid, and alum; cooling agents such as L-menthol and camphor; sulfur; lysozyme chloride; pyridoxine hydrochloride; and γ-oryzanol. Examples of various extracts include asparagus extract, oak extract, melilot extract, lycopodium extract, liquorice extract, peonies extract, bonsai extract, loofah extract, kina extract, saxifrage extract, clara extract, kohone extract, fennel extract, primrose extract, and rose extract. , Jiao extract, lemon extract, sicon extract, aloe extract, shobu root extract, eucalyptus extract, horsetail extract, sage extract, thyme extract, tea extract, seaweed extract, cucumber extract, clove extract, raspberry extract, melissa extract, carrot extract, carrot extract , Marronnier extract, peach extract, peach extract, mulberry extract, cornflower extract, hamamelis extract, placenta extract, thoracic extract, silk extract and the like. Other preservatives such as benzoate, paraoxybenzoate, salicylic acid, phenoxyethanol, α
-Antioxidants such as tocopherol and dibutylhydroxytoluene, chelating agents such as alanine, edetate sodium salt, sodium polyphosphate, sodium metaphosphate, phosphoric acid, etc., benzoic acid-based ultraviolet absorbers, anthranilic acid-based ultraviolet absorbers, and salicylic acid-based agents UV absorber, cinnamic acid UV absorber, benzophenone UV absorber, urocanic acid, ethyl urocanate, 2-phenyl-5-methylbenzoxazole, 2- (2'-hydroxy-5'-)
Methylphenyl) benzotriazole, 4-tert
-An ultraviolet absorber such as butyl-4'-methoxydibenzoylmethane, 2-amino-2-methyl-1-propanol, 2-amino-2-methyl-1,3-propanediol, potassium hydroxide, sodium hydroxide, PH adjusters such as triethanolamine, sodium carbonate, lactic acid, citric acid, glycolic acid, succinic acid, tartaric acid, dl-malic acid and salts thereof, potassium carbonate, sodium hydrogencarbonate, ammonium hydrogencarbonate, extenders, coloring Pigments,
Light-emitting pigments, organic powders, hydrophobized powders, hydrophilized powders, tar pigments, oily gelling agents, fragrances, bactericides and the like can be used. These may be used alone or in combination of two or more.

The emulsified cosmetic of the present invention comprises the component (A)
Is dissolved in water (C), and the component (B) is gradually stirred by hand stirring or the like to prepare an agent-in-water.
r method, a method in which a water-soluble component (A) such as an enzyme-treated stevia is dissolved in water (C), and an oil-soluble substance in the component (A) is dissolved and mixed in the component (B) with stirring.
A method in which the component (B) is gradually stirred and mixed, and then the component (C) is added. Alternatively, an SPG membrane emulsifier, a high-speed homogenizer, an ultra-high pressure homogenizer, an ultra mixer (manufactured by Mizuho), a clear mix (M. It can be manufactured by a known manufacturing method such as a method of mechanically emulsifying by using an emulsifying machine such as Technic Co., Ltd.). Therefore, by properly using these techniques, it is possible to provide various cosmetics such as cream, milky lotion, serum, and lotion.

[0024] In addition, since enzyme-treated stevia is considered to be a sweetener having emulsifying power, its application to foods and the like can be expected.

[0025]

EFFECTS OF THE INVENTION The emulsifying cosmetic of the present invention is a stevia extract whose safety to the skin has already been pointed out.
2-31687, Japanese Patent Publication No. 04-63042) is highly safe, and the use of enzyme-treated stevia in which the sugar has been transferred to the stevia extract makes it possible to further improve the stability of the emulsion mainly containing enzyme-treated stevia. It is an improved one and can be suitably used for various cosmetics.

[0026]

The present invention will be described below in more detail with reference to examples and comparative examples, but the present invention is not limited to these examples.

Examples 1 to 3 and Comparative Examples 1 to 3 in Table 1 show the difference between the case where the enzyme-treated stevia and the stevia extract were used for emulsification without adding any other surfactant.

(Production method) Among the compositions shown in Table 1, enzymatically treated stevia or stevia extract and glycerin were dissolved in purified water under stirring at 40 to 60 ° C., and then 40 to 6 under stirring.
Squalane at 0 ° C. was gradually added, and the mixture was cooled while stirring to obtain an emulsion.

(Evaluation method) Based on the production process and the emulsified state after the production, it was judged that emulsification was possible or impossible, and the stability of the emulsifiable one was judged after standing at 40 ° C. for one week. did. (Evaluation criteria) 〇: Good stability △: Good emulsification but suitable due to poor stability ×: Phase separation during emulsification and poor emulsification

[0030]

[Table 1] ───────────────────────────── Composition Example Comparative Example 1 2 3 1 2 3 ────── ─────────────────────── Enzyme-treated steer * 1 6.8 Enzyme-treated steer * 2 6.8 Enzyme-treated steer * 3 6.8 Steier extract * 4 6.8 Stevia extract〓 * 5 6.8 Stevia extract〓 * 6 6.8 Quercerin 10.2 10.2 10.2 10.2 10.2 10.2 Squalane 40.0 40.0 40.0 40.0 40.0 40.0 Purified water B * 7 B * 7 B * 7 B * 7 B * 7 B * 7 ─評 価 Stability evaluation ○ ○ ○ × △ × ───────────── ──────────────── * 1 SK Suite FZ manufactured by Nippon Paper Industries (average number of moles of added sugar transfer 1.6) * 2 SK Suite F3 manufactured by Nippon Paper Industries (average added sugar transfer) (Number of moles: 2.4) * 3 S manufactured by Nippon Paper Industries Sweet (average number of moles of added sugar transfer 3.5) * 4 Steviafin-HK (100% stevia extract) manufactured by Nippon Paper Industries * 5 87% purified product of stevioside * 6 Crisanta 99 (Rebau manufactured by Dainippon Ink & Chemicals, Inc.) Dioside-A99% purified product) * 7 Balance amount

As is evident from the results shown in Table 1, all of the products of the present invention are superior to the comparative products in emulsifying ability and have a stable quality even after being left at 40 ° C. for one week.

Examples 4 to 9 and Comparative Examples 4 to 9 in Table 2 show the difference between the case where the enzyme-treated stevia and the stevia extract are emulsified in combination with other surfactants.

(Manufacturing method) Of the compositions shown in Table 2, Examples and Comparative Examples 4 and 6 show that the enzyme-treated stevia or stevia extract and glycerin were dissolved in purified water by stirring at 60 to 70 ° C. under stirring. Under stirring, a mixture of a surfactant and squalane at 60 to 70 ° C was gradually added, and the mixture was cooled while stirring to obtain an emulsion. In Examples and Comparative Examples 5 and 7, enzymatically treated stevia or stevia extract, a surfactant, and glycerin were stirred and dissolved in purified water at 50 to 60 ° C., and then squalane at 50 to 60 ° C. was gradually stirred. Added to
The emulsion was obtained by cooling while continuing to stir. In Examples and Comparative Examples 8 and 9, the enzyme-treated stevia or stevia extract, a surfactant, and a mixture of glycerin were mixed at 50 to 70 ° C.
Under the conditions described above, squalane was added and stirred, and purified water at ~ 75 ° C was gradually added under stirring, and the mixture was cooled while stirring to obtain an emulsion.

(Evaluation method) From the production process and the emulsified state after the production, it was judged that emulsification was possible or not, and the stability of the emulsification was judged after standing for one week at 40 ° C. did. (Evaluation criteria) 〇: Good stability △: Good emulsification but suitable due to poor stability ×: Phase separation during emulsification and poor emulsification

[0035]

[Table 2] 組成 Composition Example Comparative Example 4 5 6 7 8 9 4 5 6 7 8 9 ──────────────────────────────────── Enzyme treatment 2.8 3.2 3.6 3.6 3.2 3.0 Steaur * 1 Steaur 2.8 3.2 3.6 3.6 3.2 3.0 Extract * 2 Sesquioleic acid 1.2 1.2 Sorbidan stearoyl lactic acid 0.8 0.8 Sodium chloride Stearyl chloride 0.4 0.4 Methylammonium coconut oil Fatty acid 0.4 0.4 Amitophylpyrethate ceramide * 3 0.8 0.8 Hydrogenated soybean 1.0 1.0 lysodyrin lipid * 4 squalane 16.0 8.0 8.0 8.0 23.3 35.0 16.0 8.0 8.0 8.0 23.3 35.0 glycerin 8.0 3.2 3.2 3.2 6.0 6.0 8.0 3.2 3.2 3.2 6.0 6.0 purified water B * 5 B * 5 B * 5 B * 5 B * 5 B * 5 B * 5 B * 5 B * 5 B * 5 B * 5 B * 5 ─────────────────────────────── ───評 価 Stability evaluation ○ ○ ○ ○ ○ ○ △ × × △ × △ ───────────────────────────────── ─── * 1 SK Suite manufactured by Nippon Paper Industries * 2 Steviafin-HK manufactured by Nippon Paper Industries * 3 Laboratoire Bioceramide LS manufactured by Cellobiologic * 4 Basis LP-20EH manufactured by Nisshin Seimitsu Oil * 5 Balance amount

As is clear from the results shown in Table 2, in the emulsification using stevia extract, oil-water separation occurs during emulsification, and the system is poor in stability even when emulsification, whereas enzyme-treated stevia was used. In the emulsified system, an emulsion having excellent stability was purified, showing the superior surface activity of enzyme-treated stevia.

Example 10 An emulsion having the following composition was obtained by the following production method. (Production method) A mixed solution of (1) to (3) and (4),
Each mixture of (5) is heated to 40 ° C. and mixed and stirred. Thereafter, the mixed solution of (6) to (11) is dropped, and (12) is added at room temperature to obtain an emulsion.

(Composition) (%) (1) Enzyme-treated stevia 2.50 (2) Glycerin 5.00 (3) Purified water 7.50 (4) Squalane 8.00 (5) Glyceryl tri-2-ethylhexanoate 2.00 (6) Purified water balance (7) Carboxyvinyl polymer 0.15 (8) Xanthan gum 0.10 (9) Potassium hydroxide 0.07 (10) 1,3-butylene glycol 4.00 (11) Preservative Agent 0.10 (12) Fragrance 0.10

The obtained emulsion was a good O / W type emulsion, and the storage stability at 40 ° C. for one month was also good.

Example 11 A moisturizing lotion having the following composition was obtained by the following production method. (Production method) The mixed solution of (9) to (11) and (1)
2) heating the mixture of (13) to 80 ° C.,
The mixture is stirred and cooled to obtain a thick emulsion. afterwards,
A concentrated emulsion having the composition of (9) to (13) is dropped into the mixed solution of (1) to (8) at room temperature to obtain a lotion.

(Composition) (%) (1) Ethanol 6.00 (2) Preservative 0.10 (3) Fragrance 0.05 (4) Purified water balance (5) Carboxyvinyl polymer 0.05 (6) Glycerin 3.00 (7) 2-amino-2-methyl-1,3-propanediol 0.03 (8) Water-soluble activator appropriate amount (9) Enzyme-treated stevia 0.07 (10) Glycerin 0.12 (11) Purified water 0.18 (12) Sorbitan sesquioleate 0.03 (13) Trimethylolpropane tri-2-ethylhexanoate 0.20

The obtained lotion was a suspension type dosage form in which a fine O / W emulsion was dispersed, and the stability over time at 40 ° C. for one month was good without creaming.

Example 12 A moisturizing cosmetic liquid having the following composition was obtained by the following production method. (Manufacturing method) A part of (1) and (2), a mixed solution of (3) and a mixture of (4) and (5) are each heated to 70 ° C. and mixed and stirred. Then, the remainder of (2), (6)-
The mixed solution of (11) was dropped, and (12) and (1) were added at room temperature.
3) is added to obtain a serum.

(Composition) (%) (1) Enzyme-treated stevia 0.40 (2) Glycerin 8.00 (3) Purified water 1.50 (4) Sodium stearoyl lactate 0.10 (5) Tri-2-ethylhexane Glyceryl acid 2.00 (6) Purified water balance (7) Carboxyvinyl polymer 0.25 (8) Xanthan gum 0.10 (9) Potassium hydroxide 0.12 (10) 1,3-butylene glycol 5.00 (11) ) Preservative 0.10 (12) Fragrance 0.05 (13) Water-soluble activator

The obtained cosmetic liquid was a translucent dosage form in which a good O / W emulsion was dispersed, and also had good stability over time at 40 ° C. for one month.

Example 13 A cream having the following composition was obtained by the following production method. (Production method) (1) to (3) were heated to 60 ° C. while stirring, and (4) to (6), which had been brought to 65 ° C. in advance, were added dropwise while gradually stirring. Next, the melted mixture of (7) to (12) is heated to 65 ° C. and added dropwise to the mixture of (1) to (6). After emulsification and stirring, the mixture is cooled, and (13) is further added dropwise at room temperature. .

(Composition) (%) (1) Enzyme-treated stevia 3.00 (2) Hydrogenated soybean lysophospholipid 1.00 (3) Glycerin 6.00 (4) Squalane 15.00 (5) Tri-2-ethyl Glyceryl hexanoate 12.00 (6) Methylphenyl polysiloxane 8.00 (7) Purified water balance (8) Carboxyvinyl polymer 0.30 (9) Xanthan gum 0.10 (10) Potassium hydroxide 0.15 (11) 1,3-butylene glycol 5.00 (12) Preservative 0.10 (13) Fragrance 0.10

The obtained cream was a good O / W emulsion having an average particle size of 1 μm or less, and was excellent in use feeling and stability over time.

Claims (3)

[Claims] The main constituents are (A) an emulsifier, (B) an oily substance, and (C) water, and as the emulsifier of (A), enzyme-treated stevia alone or at least one enzyme-treated stevia is blended. Emulsifying cosmetics. 2. The emulsified cosmetic according to claim 1, wherein the enzyme-treated stevia is incorporated in an amount of 0.005 to 20% by weight based on the total weight of the ingredients. 3. The average sugar addition mole number of the enzyme-treated stevia is 0.
The emulsified cosmetic according to claim 1 or 2, which has a viscosity of 5 to 8.0.