JP2005225837A - Sheet-like cosmetic - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prepare a sheet-like cosmetic having bleeding effect in the component and excellent in moisturizing effect on the skin. <P>SOLUTION: This sheet-like cosmetic is obtained by carrying a gel-like base containing 0.1 to 50 mass% alkylene oxide derivative represented by the formula (I): R<SP>1</SP>O-[(AO)<SB>m</SB>(EO)<SB>n</SB>]-R<SP>2</SP>(wherein AO is a 3-4C oxyalkylene group and EO is an oxyethylene group; 1≤m≤70; 1≤n≤70; the ratio of EO group to a total of AO group and EO group is 20-80 mass%; AO group and EO group may be added to each other in a blocked state or random state; R<SP>1</SP>and R<SP>2</SP>may be same or different and they are each a 1-4C hydrocarbon group or hydrogen atom, and the ratio of the hydrogen atom to the hydrocarbon group in R<SP>1</SP>and R<SP>2</SP>is ≤0.15) and a gelling agent on a sheet-like support. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a sheet-like cosmetic, and more particularly to a sheet-like cosmetic carrying a gel-like base.

  In recent years, sheet-like cosmetics are obtained by impregnating or applying a cosmetic base on a support, and can be easily used and have excellent portability. Sheet cosmetics are broadly divided into those intended for skin cleansing and those intended for moisturizing the skin. The latter are moisturizing ingredients and oils that are applied to the eyes and around the entire face for a certain period of time. Used for the penetration of medicinal ingredients. As a cosmetic base, since it does not sag from the support and has excellent adhesion to the skin, a gel-like base containing a moisturizing component and the like in a gel using a polymer is preferred. ing.

For example, a sheet pack in which a non-woven fabric is impregnated with a gel containing a water-soluble polymer and a plant extract (Japanese Patent Laid-Open No. 2002-114664), or a sheet containing a polymer such as acrylamide and a plant-derived component or hyaluronate A cosmetic sheet (JP-A-11-269031), a sheet-like pack agent (JP-A-08-188527) containing a water-soluble polymer, a polyhydric alcohol, a moisturizing component, and the like have been developed.
JP 2002-114664 A JP-A-11-269031 Japanese Patent Laid-Open No. 08-188527

However, the moisturizing components and the like used in the prior art lack in release properties (bleeding effect) from the polymer network structure, and the moisturizing effect on the skin is not sufficient.
The present invention has been made in view of the above-described conventional problems, and an object of the present invention is to provide a sheet-like cosmetic material that has a bleeding effect of components and is excellent in skin moisturizing effect.

As a result of intensive studies by the present inventors in order to achieve the above object, by using a specific alkylene oxide derivative, in addition to its moisturizing action, the release from the gel-like base (bleeding effect), the skin It has been found that a moist feeling can be imparted, and the present invention has been completed.
That is, the subject of the present invention is 0.1 to 50% by mass of an alkylene oxide derivative represented by the following general formula (I):
A sheet-like cosmetic comprising a gel-like base containing a gelling agent supported on a sheet-like support.

(Chemical formula 1)
R ¹ O — [(AO) _m (EO) _n ] —R ² (I)
(In the formula, AO is an oxyalkylene group having 3 to 4 carbon atoms, EO is an oxyethylene group, m and n are average addition moles of oxyalkylene groups and oxyethylene groups having 3 to 4 carbon atoms, respectively, 1 ≦ m ≦ 70, 1 ≦ n ≦ 70, and the ratio of the oxyethylene group to the total of the oxyalkylene group and the oxyethylene group is 20 to 80% by mass.The oxyalkylene group and the oxyethylene group are added in a block shape. R ¹ and R ² may be the same or different and each is a hydrocarbon group having 1 to 4 carbon atoms or a hydrogen atom, and hydrogen relative to the number of hydrocarbon groups in R ¹ and R ² (The ratio of the number of atoms is 0.15 or less.)

In the cosmetic, it is preferable that the oxyalkylene group and the oxyethylene group of the alkylene oxide derivative are randomly added.
In the cosmetic, the gelling agent is preferably a water-soluble polymer, particularly agar.
A sheet-like cosmetic, wherein the gelling agent is an oily polymer, particularly a styrene-isoprene-styrene copolymer.

  According to the sheet-like cosmetic of the present invention, by using a specific alkylene oxide derivative, it is possible to obtain a sheet-like cosmetic having a bleeding effect and an excellent skin moisturizing effect.

<Alkylene oxide derivatives>
In the alkylene oxide derivative represented by the formula (I) used in the present invention, AO is an oxyalkylene group having 3 to 4 carbon atoms, and examples thereof include an oxypropylene group, an oxybutylene group, an oxyisobutylene group, and an oxytrimethylene group. And an oxytetramethylene group. Preferably, an oxypropylene group and an oxybutylene group are mentioned.
m is the average number of added moles of an oxyalkylene group having 3 to 4 carbon atoms, and 1 ≦ m ≦ 70, preferably 2 ≦ m ≦ 60. n is the average number of added moles of oxyethylene groups, and 1 ≦ n ≦ 70, preferably 2 ≦ n ≦ 60. When the oxyalkylene group or oxyethylene group having 3 to 4 carbon atoms is 0, the moist feeling is lowered, and when it exceeds 70, a sticky feeling tends to appear.

Moreover, the ratio of the oxyethylene group with respect to the sum total of a C3-C4 oxyalkylene group and an oxyethylene group is 20-80 mass%. A bleeding effect in which the ratio of the oxyethylene group is 20% by mass or less or 80% by mass or more cannot be obtained sufficiently. Moreover, when the ratio of the oxyethylene group is less than 20% by mass, moist feeling tends to be inferior, and when it exceeds 80% by mass, stickiness after use tends to be felt.
The order of adding ethylene oxide and alkylene oxide having 3 to 4 carbon atoms is not particularly specified. Moreover, the oxyethylene group and the oxyalkylene group having 3 to 4 carbon atoms may be added in a block shape or randomly, and the block shape may include not only a two-stage block but also a three-stage block or more. Although it is included, it is preferable that it is added in a random manner in view of the feeling of use.

R ¹ and R ² are each a hydrocarbon group having 1 to 4 carbon atoms or a hydrogen atom, and examples of the hydrocarbon group include a methyl group, an ethyl group, an n-propyl group, an isopropyl group, an n-butyl group, a sec-butyl group, Examples thereof include a tert-butyl group. A methyl group and an ethyl group are preferred. Hydrocarbon groups having 5 or more carbon atoms are less hydrophilic and less moist. R ¹ and R ² may be the same or different.
R ¹ and R ² may be used alone, or a hydrocarbon group having 1 to 4 carbon atoms and a hydrogen atom may be mixed, or a hydrocarbon group having 1 to 4 carbon atoms may be mixed. However, among the hydrocarbon groups of R ¹ and R ^2, the proportion of hydrocarbon groups and hydrogen atoms is such that the ratio Y / X of the number of hydrogen atoms (Y) to the number of hydrocarbon groups (X) is 0.15. Hereinafter, it is preferably 0.06 or less. When the ratio of Y / X exceeds 0.15, a sticky feeling comes out.

  Examples of the alkylene oxide derivative used in the present invention include POE (9) POP (2) dimethyl ether, POE (14) POP (7) dimethyl ether, POE (10) POP (10) dimethyl ether, POE (6) POP (14) Dimethyl ether, POE (15) POP (5) Dimethyl ether, POE (25) POP (25) Dimethyl ether, POE (9) POB (2) Dimethyl ether, POE (14) POB (7) Dimethyl ether, POE (10) POP (10) Examples thereof include random polymers or block polymers such as diethyl ether, POE (10) POP (10) dipropyl ether, POE (10) POP (10) dibutyl ether. The POE, POP, and POB are abbreviations for polyoxyethylene, polyoxypropylene, and polyoxybutylene, respectively, and may be abbreviated as follows.

The alkylene oxide derivative of the present invention can be produced by a known method. For example, it can be obtained by subjecting a compound having a hydroxyl group to addition polymerization of ethylene oxide and an alkylene oxide having 3 to 4 carbon atoms, and then subjecting an alkyl halide to an ether reaction in the presence of an alkali catalyst.
The compounding quantity of the alkylene oxide derivative in the gel of this invention is 0.1-50 mass% normally, Preferably it is 1-30 mass%, Most preferably, 5-30 mass% is mix | blended.
The sheet-like cosmetic of the present invention is obtained by supporting a gel-like base material containing an alkylene oxide derivative represented by the above general formula (I) and a gelling agent on a sheet-like support.
Examples of the gel base of the present invention include a gel base using a water-soluble polymer as a gelling agent, or a gel base using an oily polymer as a gelling agent.

<Water-soluble polymer>
Examples of the water-soluble polymer used in the present invention include polyacrylic acid, sodium polyacrylate, agar, carrageenan, mannan, gellan gum, gelatin, gum arabic, polyvinyl alcohol, polyvinylpyrrolidone, sodium carboxymethylcellulose, sodium alginate, xanthan gum and the like. Can be mentioned. Agar is particularly preferable.
As a compounding quantity of water-soluble polymer, it is 1-20 mass%, Preferably it is 2-15 mass%. If the blending amount is less than 1% by mass, the gel retainability, adhesion to the skin and the like tend to be lowered, and workability and a feeling of use tend to be lowered. On the other hand, when the blending amount exceeds 20% by mass, the releasability of the humectant and the like is lowered, the viscosity is excessively increased during the production, and the workability tends to be lowered.

<Oil polymer>
As the oily polymer, natural rubber, SBR (styrene butadiene rubber), SIS (styrene isoprene block copolymer rubber), polyisobutylene rubber, polyisoprene rubber and the like are used. SIS (styrene isoprene block copolymer rubber) is particularly preferable. The amount of the oily polymer is 5 to 60% by mass, preferably 30 to 50% by mass. If the blending amount is less than 5% by mass, the gel retainability, adhesion to the skin and the like tend to be lowered, and workability and a feeling of use tend to be lowered. On the other hand, when the blending amount exceeds 60% by mass, the releasability of the humectant and the like is lowered, and the viscosity is excessively increased during the production, and the workability tends to be lowered.

<Polyhydric alcohol>
The gel base of the present invention preferably further contains a polyhydric alcohol.
Examples of the polyhydric alcohol include divalent alcohols (for example, ethylene glycol, propylene glycol, trimethylene glycol, 1,2-butylene glycol, 1,3-butylene glycol, tetramethylene glycol, 2,3-butylene glycol, Pentamethylene glycol, 2-butene-1,4-diol, hexylene glycol, octylene glycol, etc.); trivalent alcohol (eg, glycerin, trimethylolpropane, etc.); tetravalent alcohol (eg, 1,2,6) Pentaerythritol such as hexanetriol); pentahydric alcohol (eg, xylitol, etc.); hexavalent alcohol (eg, sorbitol, mannitol, etc.); polyhydric alcohol polymer (eg, diethylene glycol, dipropylene glycol, triethylene glycol, polypropylene Glycol, tetraethylene glycol, diglycerin, polyethylene glycol, triglycerin, tetraglycerin, polyglycerin, etc.); divalent alcohol alkyl ethers (for example, ethylene glycol monomethyl ether, ethylene glycol monoethyl ether, ethylene glycol monobutyl ether, ethylene) Glycol monophenyl ether, ethylene glycol monohexyl ether, ethylene glycol mono 2-methylhexyl ether, ethylene glycol isoamyl ether, ethylene glycol benzyl ether, ethylene glycol isopropyl ether, ethylene glycol dimethyl ether, ethylene glycol diethyl ether, ethylene glycol dibutyl ether, etc.) ; Dihydric alcohol alkyl ester Tellurium (for example, diethylene glycol monomethyl ether, diethylene glycol monoethyl ether, diethylene glycol monobutyl ether, diethylene glycol dimethyl ether, diethylene glycol diethyl ether, diethylene glycol butyl ether, diethylene glycol methyl ethyl 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, dipropylene glycol butyl ether, etc.); divalent alcohol Ether esters (eg, ethylene glycol monomethyl ether acetate, ethylene glycol monoethyl ether acetate, ethylene glycol monobutyl ether acetate, ethylene glycol monophenyl ether acetate, ethylene glycol diazinate, 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, propylene glycol monophenyl ether acetate, etc .; glycerin monoalkyl ether (for example, xyl alcohol, ceralkyl alcohol) Sugar alcohol (for example, sorbitol, maltitol, maltotriose, mannitol, sucrose, erythritol, glucose, fructose, amylolytic sugar, maltose, xylitolose, amylolytic sugar reducing alcohol, etc.); Solid; Tetrahydrofurfuryl alcohol; POE-Tetrahydrofurfuryl alcohol; POP-Butyl ether; POP / POE-Butyl ether; Tripolyoxypropylene glycerin ether; POP-Glycerin ether; Examples include ether and polyglycerin. Particularly preferred are glycerin, 1,3-butylene glycol, and sorbitol.

Polyhydric alcohols act as humectants or plasticizers and tend to promote bleeding. As a result, moisture can be further given to the skin. A polyhydric alcohol may be used by 1 type, or may mix and use 2 or more types.
The compounding quantity of a polyhydric alcohol is 1-50 mass%, Preferably it is about 3-30 mass%. If the amount is less than 1% by mass, the effect of the blending is not sufficiently exhibited. If the amount exceeds 50% by mass, the gel retainability, adhesion to the skin, and the like tend to be lowered, and workability and a feeling of use tend to be reduced. .

  The gel-like base according to the sheet-like cosmetic of the present invention is prepared by blending the above essential components into an existing gel-like cosmetic base. In the gel base of the present invention, in addition to the essential components described above, other components that are usually used in skin external preparations such as cosmetics and pharmaceuticals, for example, other moisturizing agents, Cross-linking agent, excipient, powder component, liquid fat, solid fat, wax, hydrocarbon, higher fatty acid, higher alcohol, ester, silicone, anionic surfactant, cationic surfactant, amphoteric surfactant, nonionic surfactant Agent, thickener, film agent, sequestering agent, lower alcohol, sugar, amino acid, organic amine, polymer emulsion, pH adjuster, skin nutrient, vitamin, antioxidant, antioxidant aid, fragrance, water Etc. can be appropriately blended as necessary, and can be produced by a conventional method. Specific ingredients that can be blended are listed below, and the sheet-like cosmetic of the present invention can be prepared by blending the above essential blending ingredients and any one or more of the following ingredients.

Other moisturizing agents include, for example, chondroitin sulfate, hyaluronic acid, mucoitin sulfate, caronic acid, atelocollagen, cholesteryl-12-hydroxystearate, sodium lactate, bile salt, dl-pyrrolidone carboxylate, short chain soluble collagen, Diglycerin (EO) PO adduct, Izayoi rose extract, Achillea millefolium extract, Merirot extract and the like.
As the crosslinking agent, aluminum hydroxide, aluminum glycinate, magnesium aluminate silicate, magnesium aluminate metasilicate, or the like is used.
As the excipient, kaolin, bentonite, zinc oxide, titanium oxide, silicic anhydride, or the like is used.

  Examples of the powder component include inorganic powders (for example, talc, kaolin, mica, sericite, muscovite, phlogopite, synthetic mica, saucite, biotite, permiculite, magnesium carbonate, calcium carbonate, silicic acid. Aluminum, barium silicate, calcium silicate, magnesium silicate, strontium silicate, metal tungstate, magnesium, silica, zeolite, barium sulfate, calcined calcium sulfate (baked gypsum), calcium phosphate, fluorine apatite, hydroxyapatite, ceramic powder , Metal soap (eg, zinc myristate, calcium palmitate, aluminum stearate), boron nitride, etc .; organic powder (eg, polyamide resin powder (nylon powder), polyethylene powder, polymethyl methacrylate powder, polystyrene Powder, copolymer resin powder of styrene and acrylic acid, benzoguanamine resin powder, polytetrafluoroethylene powder, cellulose powder, etc.); inorganic white pigment (eg, titanium dioxide, zinc oxide, etc.); inorganic red pigment (eg, Iron oxide (Bengara), iron titanate, etc .; Inorganic brown pigments (eg, γ-iron oxide, etc.); Inorganic yellow pigments (eg, yellow iron oxide, loess, etc.); Inorganic black pigments (eg, black oxide) Iron, low-order titanium oxide, etc.); inorganic purple pigments (eg, mango violet, cobalt violet, etc.); inorganic green pigments (eg, chromium oxide, chromium hydroxide, cobalt titanate, etc.); inorganic blue pigments (eg, Pearl pigments (eg titanium oxide coated mica, titanium oxide coated bismuth oxychloride, titanium oxide coated talc, colored oxidation) Tan-coated mica, bismuth oxychloride, fish scale foil, etc.); metal powder pigments (eg, aluminum powder, copper powder, etc.); organic pigments such as zirconium, barium or aluminum lake (eg, red 201, red 202, red 204) No., red 205, red 220, red 226, red 228, red 405, orange 203, orange 204, yellow 205, yellow 401, and blue 404, organic pigments such as 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 No. 1 etc.); natural pigments (for example, chlorophyll, β-carotene, etc.) and the like.

Examples of 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, southern castor oil, castor oil, linseed oil , Safflower oil, cottonseed oil, eno oil, soybean oil, peanut oil, tea seed oil, kaya oil, rice bran oil, cinnagiri oil, Japanese kiri oil, jojoba oil, germ oil, triglycerin and the like.
Examples of the solid fat include cacao butter, palm oil, horse fat, hydrogenated palm oil, palm oil, beef tallow, sheep fat, hydrogenated beef tallow, palm kernel oil, pork fat, beef bone fat, owl kernel oil, hydrogenated oil, cattle Leg fats, moles, hydrogenated castor oil and the like.

  Examples of 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, and reduced lanolin. , Jojoballow, hard lanolin, shellac wax, POE lanolin alcohol ether, POE lanolin alcohol acetate, POE cholesterol ether, lanolin fatty acid polyethylene glycol, POE hydrogenated lanolin alcohol ether, and the like.

Examples of the hydrocarbon oil include liquid paraffin, ozokerite, squalane, pristane, paraffin, ceresin, squalene, petrolatum, microcrystalline wax, and the like.
Examples of higher fatty acids include lauric acid, myristic acid, palmitic acid, stearic acid, behenic acid, oleic acid, undecylenic acid, toluic acid, isostearic acid, linoleic acid, linolenic acid, eicosapentaenoic acid (EPA), docosahexaenoic acid ( DHA) and the like.

  Examples of higher alcohols include linear alcohols (eg, lauryl alcohol, cetyl alcohol, stearyl alcohol, behenyl alcohol, myristyl alcohol, oleyl alcohol, cetostearyl alcohol); branched chain alcohols (eg, monostearyl glycerin ether (batyl alcohol) ), 2-decyltetradecinol, lanolin alcohol, cholesterol, phytosterol, hexyl decanol, isostearyl alcohol, octyldodecanol and the like.

  Synthetic ester oils include isopropyl myristate, cetyl octanoate, octyldodecyl myristate, isopropyl palmitate, butyl stearate, hexyl laurate, myristyl myristate, decyl oleate, hexyl decyl dimethyloctanoate, cetyl lactate, myristyl lactate Lanolin acetate, isocetyl stearate, isocetyl isostearate, cholesteryl 12-hydroxystearate, ethylene glycol di-2-ethylhexanoate, dipentaerythritol fatty acid ester, monoisostearate N-alkyl glycol, neopentyl glycol dicaprate, apple Acid diisostearyl, di-2-heptylundecanoic acid glycerin, tri-2-ethylhexanoic acid trimethylolpropane, triisostearic acid trimethylo Propane, tetra-2-ethylhexanoate pentaerythritol, glycerol tri-2-ethylhexanoate, glycerol trioctanoate, glycerol triisopalmitate, trimethylolpropane triisostearate, cetyl 2-ethylhexanoate, 2-ethylhexyl palmi Tate, glyceryl trimyristate, glyceride tri-2-heptylundecanoate, castor oil fatty acid methyl ester, oleyl oleate, acetoglyceride, 2-heptylundecyl palmitate, diisobutyl adipate, N-lauroyl-L-glutamic acid-2 -Octyldodecyl ester, di-2-heptylundecyl adipate, ethyl laurate, di-2-ethylhexyl sebacate, 2-hexyldecyl myristate, 2-hexyldecyl palmitate, 2-hexyldecyl adipate Le, diisopropyl sebacate, 2-ethylhexyl succinate, and triethyl citrate.

  Examples of the silicone oil include linear polysiloxanes (for example, dimethylpolysiloxane, methylphenylpolysiloxane, diphenylpolysiloxane, etc.); cyclic polysiloxanes (for example, octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, dodecamethylcyclohexyl). And silicone resins that form a three-dimensional network structure, various modified polysiloxanes (amino-modified polysiloxane, polyether-modified polysiloxane, alkyl-modified polysiloxane, fluorine-modified polysiloxane, etc.) It is done.

  Anionic surfactants include, for example, fatty acid soaps (eg, sodium laurate, sodium palmitate, etc.); higher alkyl sulfates (eg, sodium lauryl sulfate, potassium lauryl sulfate, etc.); alkyl ether sulfates (eg, POE-lauryl sulfate triethanolamine, POE-sodium lauryl sulfate, etc.); N-acyl sarcosine acids (eg, sodium lauroyl sarcosine, etc.); higher fatty acid amide sulfonates (eg, sodium N-myristoyl-N-methyl taurate, palm Oil fatty acid methyl tauride sodium, lauryl methyl tauride sodium, etc .; phosphate ester salt (POE-oleyl ether sodium phosphate, POE-stearyl ether phosphate, etc.); sulfosuccinate (eg, di-2-ethylhexyl sulfo) Sodium succinate, sodium monolauroyl monoethanolamide polyoxyethylene sodium sulfosuccinate, sodium lauryl polypropylene glycol sulfosuccinate, etc.); alkyl benzene sulfonates (eg, sodium linear dodecyl benzene sulfonate, triethanol amine linear dodecyl benzene sulfonate, linear dodecyl) Higher fatty acid ester sulfates (eg, hydrogenated coconut oil fatty acid sodium glycerol sulfate); N-acyl glutamate (eg, monosodium N-lauroyl glutamate, disodium N-stearoyl glutamate, N-myristoyl) -L-glutamic acid monosodium, etc.); sulfated oil (eg funnel oil); POE-alkyl ether carboxylic acid; POE-alkyl allyl ether Α-olefin sulfonates; higher fatty acid ester sulfonates; secondary alcohol sulfates; higher fatty acid alkylolamide sulfates; lauroyl monoethanolamide sodium succinate; N-palmitoyl aspartate ditriethanolamine ; Sodium caseinate and the like.

  Examples of the cationic surfactant include alkyltrimethylammonium salts (eg, stearyltrimethylammonium chloride, lauryltrimethylammonium chloride, etc.); alkylpyridinium salts (eg, cetylpyridinium chloride, etc.); distearyldimethylammonium dialkyldimethylammonium chloride; Poly (N, N'-dimethyl-3,5-methylenepiperidinium chloride); alkyl quaternary ammonium salt; alkyldimethylbenzylammonium salt; alkylisoquinolinium salt; dialkyl morpholinium salt; POE-alkylamine; Examples include alkylamine salts; polyamine fatty acid derivatives; amyl alcohol fatty acid derivatives; benzalkonium chloride; benzethonium chloride and the like.

  Examples of amphoteric surfactants include imidazoline-based amphoteric surfactants (eg, 2-undecyl-N, N, N- (hydroxyethylcarboxymethyl) -2-imidazoline sodium, 2-cocoyl-2-imidazolinium hydroxide). Side-1-carboxyethyloxy disodium salt, etc.); betaine surfactants (for example, 2-heptadecyl-N-carboxymethyl-N-hydroxyethylimidazolinium betaine, lauryldimethylaminoacetic acid betaine, alkylbetaine, amide betaine) , Sulfobetaine, etc.).

  Examples of the lipophilic nonionic surfactant include sorbitan fatty acid esters (for example, sorbitan monooleate, sorbitan monoisostearate, sorbitan monolaurate, sorbitan monopalmitate, sorbitan monostearate, sorbitan sesquioleate, Sorbitan trioleate, diglycerol sorbitan penta-2-ethylhexylate, diglycerol sorbitan tetra-2-ethylhexylate); glycerin polyglycerin fatty acids (eg mono cottonseed oil fatty acid glycerin, glyceryl monoerucate, glyceryl sesquioleate, monostearin) Glycerin acid, α, α'-oleic acid pyroglutamate glycerin, monostearic acid glycerin malic acid, etc.); propylene glycol fatty acid esters (eg monostearies) Propylene glycolate, etc.); hardened castor oil derivative; glycerin alkyl ether, etc.

  Examples of hydrophilic nonionic surfactants include POE-sorbitan fatty acid esters (for example, POE-sorbitan monooleate, POE-sorbitan monostearate, POE-sorbitan monooleate, POE-sorbitan tetraoleate). POE sorbite fatty acid esters (eg, POE-sorbite monolaurate, POE-sorbite monooleate, POE-sorbite pentaoleate, POE-sorbite monostearate, etc.); POE-glycerin fatty acid esters (eg, POE- POE-monooleate such as glycerol monostearate, POE-glycerol monoisostearate, POE-glycerol triisostearate); POE-fatty acid esters (eg POE-distearate, POE-monodiolate, ethylene glycol distearate, etc.) POE-alkyl ethers (eg POE- Lauryl ether, POE-oleyl ether, POE-stearyl ether, POE-behenyl ether, POE-2-octyldodecyl ether, POE-cholestanol ether, etc.); Pluronic type (eg, Pluronic, etc.); POE / POP-alkyl ether (For example, POE / POP-cetyl ether, POE / POP-2-decyltetradecyl ether, POE / POP-monobutyl ether, POE / POP-hydrogenated lanolin, POE / POP-glycerin ether, etc.); Tetra POE / Tetra POP-ethylenediamine condensates (eg Tetronic, etc.); POE-castor oil hardened castor oil derivatives (eg POE-castor oil, POE-hardened castor oil, POE-hardened castor oil monoisostearate, POE-hardened castor Oil triisostearate, POE-hardened castor oil monopyroglutamic acid monoisostearic acid diester, POE-hardened castor oil maleic acid, etc.) POE-beeswax lanolin derivatives (eg POE-sorbite beeswax); alkanolamides (eg coconut oil fatty acid diethanolamide, lauric acid monoethanolamide, fatty acid isopropanolamide, etc.); POE-propylene glycol fatty acid ester; POE-alkylamine POE-fatty acid amide; sucrose fatty acid ester; alkyl ethoxydimethylamine oxide; trioleyl phosphate and the like.

  Examples of thickeners include gum arabic, carrageenan, caraya gum, gum tragacanth, carob gum, quince seed (malmello), casein, dextrin, gelatin, sodium pectate, sodium alginate, methylcellulose, ethylcellulose, CMC, hydroxyethylcellulose, hydroxypropyl Cellulose, PVA, PVM, PVP, sodium polyacrylate, carboxyvinyl polymer, locust bean gum, guar gum, tamarind gum, cellulose dialkyldimethylammonium sulfate, xanthan gum, magnesium aluminum silicate, bentonite, hectorite, silicate A1Mg (vee gum), Examples thereof include laponite and silicic anhydride.

  Examples of the sequestering agent include 1-hydroxyethane-1,1-diphosphonic acid, 1-hydroxyethane-1,1-diphosphonic acid tetrasodium salt, disodium edetate, trisodium edetate, tetrasodium edetate Sodium citrate, sodium polyphosphate, sodium metaphosphate, gluconic acid, phosphoric acid, citric acid, ascorbic acid, malic acid, tartaric acid, lactic acid, succinic acid, edetic acid, trisodium ethylenediaminehydroxyethyl triacetate and the like.

Examples of the lower alcohol include ethanol, propanol, isopropanol, isobutyl alcohol, t-butyl alcohol and the like.
Monosaccharides include, for example, tricarbon sugars (eg, D-glyceryl aldehyde, dihydroxyacetone, etc.); tetracarbon sugars (eg, D-erythrose, D-erythrulose, D-treose, erythritol, etc.); pentose sugars (eg, , L-arabinose, D-xylose, L-lyxose, D-arabinose, D-ribose, D-ribulose, D-xylulose, L-xylulose, etc .; hexose (eg, D-glucose, D-talose, D) -Bucicose, D-galactose, D-fructose, L-galactose, L-mannose, D-tagatose, etc.); pentose sugar (eg, aldheptose, heproose, etc.); For example, 2-deoxy-D-ribose, 6-deoxy-L-galactose, 6-deoxy-L-mannose, etc .; amino sugar (eg, D-glucosamine, D-galactosamine, shea Acid, Aminouron acid, muramic acid); uronic acid (e.g., D- glucuronic acid, D- mannuronic acid, L- guluronic acid, D- galacturonic acid, L- iduronic acid) and the like.

Examples of the oligosaccharides include sucrose, gnocyanose, umbelliferose, lactose, planteose, isoliquinoses, α, α-trehalose, raffinose, lycnose, umbilicin, stachyose verbusose and the like.
Examples of the polysaccharide include cellulose, quince seed, chondroitin sulfate, starch, galactan, dermatan sulfate, glycogen, gum arabic, heparan sulfate, hyaluronic acid, tragacanth gum, keratan sulfate, chondroitin, xanthan gum, mucoitin sulfate, guar gum, dextran, kerato sulfate. , Locust bean gum, succinoglucan, caronic acid and the like.

Examples of amino acids include neutral amino acids (eg, threonine, cysteine, etc.); basic amino acids (eg, hydroxylysine, etc.) and the like. Examples of amino acid derivatives include acyl sarcosine sodium (lauroyl sarcosine sodium), acyl glutamate, acyl β-alanine sodium, glutathione, and pyrrolidone carboxylic acid.
Examples of the organic amine include monoethanolamine, diethanolamine, triethanolamine, morpholine, triisopropanolamine, 2-amino-2-methyl-1,3-propanediol, and 2-amino-2-methyl-1-propanol. Is mentioned.
Examples of the polymer emulsion include an acrylic resin emulsion, a polyethyl acrylate emulsion, an acrylic resin liquid, a polyacryl alkyl ester emulsion, a polyvinyl acetate resin emulsion, and a natural rubber latex.

Examples of the pH adjuster include buffers such as lactic acid-sodium lactate, citric acid-sodium citrate, and succinic acid-sodium succinate.
Examples of vitamins include vitamins A, B1, B2, B6, C, E and derivatives thereof, pantothenic acid and derivatives thereof, biotin and the like.
Examples of the antioxidant include tocopherols, dibutylhydroxytoluene, butylhydroxyanisole, gallic acid esters and the like.
Examples of the antioxidant assistant include phosphoric acid, citric acid, ascorbic acid, maleic acid, malonic acid, succinic acid, fumaric acid, kephalin, hexametaphosphate, phytic acid, and ethylenediaminetetraacetic acid.

  Other components that can be blended include, for example, preservatives (ethyl paraben, butyl paraben, etc.); anti-inflammatory agents (eg, glycyrrhizic acid derivatives, glycyrrhetinic acid derivatives, salicylic acid derivatives, hinokitiol, zinc oxide, allantoin, etc.); Extract, placenta extract, saxifrage extract, arbutin, etc.); various extracts (eg, buckwheat, auren, shikon, peonies, assembly, birch, sage, loquat, carrot, aloe, mallow), iris, grape, yokuinin, loofah, lily , Saffron, nematode, ginger, hypericum, onionis, garlic, red pepper, chimney, red snapper, seaweed, etc.), activator (eg, royal jelly, photosensitizer, cholesterol derivative, etc.); Acid Gyl ester, nicotinic acid β-butoxyethyl ester, capsaicin, gingerone, cantalis tincture, ictamol, tannic acid, α-borneol, tocopherol nicotinate, inositol hexanicotinate, cyclandrate, cinnarizine, trazoline, acetylcholine, verapamil, cephalanthin , Γ-oryzanol, etc.); antiseborrheic agents (eg, sulfur, thianthol, etc.); anti-inflammatory agents (eg, tranexamic acid, thiotaurine, hypotaurine, etc.) and the like.

  Furthermore, edetate disodium, edetate trisodium, sodium citrate, sodium polyphosphate, sodium metaphosphate, gluconic acid, malic acid and other metal sequestering agents, caffeine, tannin, verapamil, tranexamic acid and its derivatives, licorice, Various herbal extracts such as Karin, Ichiyakusou, drugs such as tocopherol acetate, glycyrrhizic acid, glycyrrhizic acid and its derivatives or salts thereof, whitening agents such as vitamin C, magnesium ascorbate phosphate, glucoside ascorbate, arbutin, kojic acid, Amino acids such as arginine and lysine and derivatives thereof, saccharides such as fructose, mannose, erythritol, trehalose and xylitol can also be appropriately blended.

The viscosity of the gel base in the present invention is specifically 10,000 to 150,000 mPa · s (30 ° C.), preferably 30,000 to 100,000 mPa · s (30 ° C.). If it exceeds 150,000 mPa · s, the releasability of moisturizing components and the like deteriorates, and if it is less than 10,000 mPa · s, it may sag from the support during use. The viscosity is a numerical value measured at 30 ° C. with a B-type viscometer manufactured by Shibaura System Co., Ltd. under the condition of 12 rpm for 1 minute.
In addition, the support body of the sheet-like cosmetic of the present invention is not particularly limited, and any of natural fibers or synthetic fiber nonwoven fabrics or woven fabrics can be used. Specifically, for example, rayon, acetate, acrylic, polyester, polyethylene, polypropylene, polyurethane, polyamide, cotton, and non-woven fabrics or woven fabrics of these, and wet and dry pulp sheets, thermoplastic resins (polyethylene, polypropylene, polyethylene) It may be a pulp sheet reinforced with terephthalate or the like, or a laminate thereof.

As for the thickness (coating thickness) of the gel base laminated | stacked on a support body in the sheet-like cosmetics of this invention, 0.1 mm-3 mm are preferable. If it exceeds 3 mm, the feeling of close contact with the skin tends to decrease, and the mass of the sheet becomes heavy and tends to peel off during use. Moreover, if it is less than 0.1 mm, it tends to be difficult to obtain a sufficient moisturizing effect on the skin.
Moreover, in the sheet-like cosmetics of this invention, the release film (peelable sheet) may further be laminated | stacked on the gel surface. The release film is not particularly limited, and for example, a resin film, paper or the like that has been subjected to a peeling treatment is appropriately selected. Then, it is preferable that the surface of the gel-like base is covered with a release film until use, and the gel exposed by peeling the release film at the time of use is attached to the face or the like.

Examples of the shape of the sheet-like cosmetic of the present invention include an oval shape, a circular shape, a heart shape, a semicircular shape, a semielliptical shape, a square shape, a rectangular shape, and a trapezoid shape, but are not particularly limited. Moreover, you may provide a convex part and a recessed part in the center part and a peripheral part for the purpose of alignment and a usability improvement. Moreover, you may change the thickness and composition of a support body according to a use site | part.
As a method of using the sheet-like cosmetic of the present invention, it is preferable to leave the sheet in contact with the application site and leave it for about 0.1 to 60 minutes, particularly preferably for about 1 to 30 minutes, and then peel off the sheet. It is preferable. The use frequency is preferably about once a day to about 3 times a week.

Examples of the application site of the sheet-like cosmetic of the present invention include the face (whole part, cheek part, eye part, mouth part, upper and lower part of the eye), arm part, leg part, chest part, abdominal part, neck part and the like.
The sheet-like cosmetic of the present invention has a synergistic effect of the alkylene oxide derivative represented by the general formula (I) and other ingredients, for example, when applied to the face and neck, the effect of improving fine lines and the turn of the skin Over-improvement, moisturizing effect, bear improving effect, blood circulation promotion or cooling effect, etc .; when applied to arms, legs, abdomen, slimming effect, moisturizing effect, cooling effect, etc .; when applied to chest, moisturizing effect, A shaping effect can be expected.

Next, the present invention will be described more specifically with reference to examples. The present invention is not limited thereby. In addition, all compounding quantities are shown by the mass%.
<Synthesis Example 1 Synthesis of Block Polymer>
Polyoxyethylene (10 mol) Polyoxypropylene (10 mol) Dimethyl ether CH ₃ O (EO) ₅ (PO) ₁₀ (EO) ₅ CH ₃
76 g of propylene glycol and 3.1 g of potassium hydroxide as a catalyst were charged into an autoclave. After the air in the autoclave was replaced with dry nitrogen, the catalyst was completely dissolved at 140 ° C. with stirring. Next, 522 g of propylene oxide was dropped with a dropping device and stirred for 2 hours. Subsequently, 440 g of ethylene oxide was dropped with a dropping device and stirred for 2 hours. Next, 224 g of potassium hydroxide was charged and the inside of the system was replaced with dry nitrogen, and then 188 g of methyl chloride was injected at a temperature of 80 to 130 ° C. and reacted for 5 hours. Thereafter, the reaction composition was taken out from the autoclave, neutralized with hydrochloric acid to pH 6 to 7, and treated at a reduced pressure of -0.095 MPa (50 mmHg) at 100 ° C for 1 hour in order to remove the contained water. Further, filtration was performed to remove the salt generated after the treatment, and the alkylene oxide derivative (block polymer) was obtained.
Samples that were sampled and reacted before reacting with methyl chloride had a hydroxyl value of 110, the resulting compound had a hydroxyl value of 0.3, and the ratio of the number of hydrogen atoms to the number of terminal methyl groups was 0.003. An atom is converted to a methyl group.

<Synthesis Example 2 Random Polymer Synthesis Example>
Polyoxyethylene (10 mol) Polyoxypropylene (10 mol) Dimethyl ether CH ₃ O [(EO) ₁₀ / (PO) ₁₀ ] CH ₃
76 g of propylene glycol and 3.1 g of potassium hydroxide as a catalyst were charged into an autoclave. After the air in the autoclave was replaced with dry nitrogen, the catalyst was completely dissolved at 140 ° C. with stirring. Next, a mixture of 440 g of ethylene oxide and 522 g of propylene oxide was dropped with a dropping device and stirred for 2 hours. Next, 224 g of potassium hydroxide was charged and the inside of the system was replaced with dry nitrogen, and then 188 g of methyl chloride was injected at a temperature of 80 to 130 ° C. and reacted for 5 hours. Thereafter, the reaction composition was taken out from the autoclave, neutralized with hydrochloric acid to pH 6 to 7, and treated at a reduced pressure of -0.095 MPa (50 mmHg) at 100 ° C for 1 hour in order to remove the contained water. Further, filtration was performed to remove the salt generated after the treatment, and the alkylene oxide derivative (random polymer) was obtained.

Samples that were sampled and reacted before reacting with methyl chloride had a hydroxyl value of 107, the resulting compound had a hydroxyl value of 0.4, and the ratio of the number of hydrogen atoms to the number of terminal methyl groups was 0.004. An atom is converted to a methyl group.
In the following examples, EO represents an oxyethylene group, PO represents an oxypropylene group, and [(EO) / (PO)] represents a random bond.

The evaluation method used in the present invention will be described.
<Human usability test>
The gel-like base surface of each test piece of sheet-shaped cosmetic cut to 1.5 × 3.0 cm was applied to the eyes of 10 subjects and removed after 10 minutes.
"Evaluation (1) Breeding"
The mass of the test piece before sticking and the weight of the test piece after the sticking was absorbed and removed on the filter paper after the gel base surface bleeding was measured with a precision balance, and the bleeding amount was determined from the difference in mass. The presence or absence of bleeding was determined according to the following criteria.
Existence: Bleeding amount 0.01g or more None: Bleeding amount less than 0.01g

"Evaluation (2) Moist"
Each person was independently evaluated for the presence or absence of moist feeling after use based on the following evaluation criteria. The evaluation score was expressed as an average of 10 people.
(Evaluation criteria)
0 ... No moist feeling 1 ... Moist feeling slightly 2 ... Moist feeling slightly 3 ... Moist feeling 4 ... Moist feeling

The sheet-like cosmetic material of the test example which consists of a mixing | blending composition described in following Table 2 was prepared, and the characteristic was evaluated by the said evaluation method. The test results are also shown in Table 2.
In addition, the structure of the alkylene oxide derivative mix | blended with each composition is shown in following Table 1.
(Table 1)
Structure EO (mass%) Y / X R1, R2 mn
a-1 CH ₃ O (EO) ₅ (PO) ₁₀ (EO) ₅ CH ₃ block 43.1 0.003 CH ₃ 10 10
a-2 CH ₃ O [(EO) ₁₀ (PO) ₁₀ ] CH ₃ random 43.1 0.004 CH ₃ 10 10
a-3 CH ₃ O [(EO) ₂₅ (PO) ₂₅ ] CH ₃ random 43.1 0.015 CH ₃ 25 25
a-4 CH ₃ O (EO) ₂₀ CH ₃ ------- 100.0 0.010 CH ₃ 0 20
a-5 CH ₃ O (PO) ₂₀ CH ₃ ------- 0.0 0.019 CH ₃ 20 0
a-6 HO [(EO) ₁₀ (PO) ₁₀ ] H Random 43.1 ----- H 10 10
* EO (mass%): ratio of oxyethylene group to the total of oxyalkylene group having 3 to 4 carbon atoms and oxyethylene group Y / X: ratio of number of hydrogen atoms Y to number of hydrocarbon groups X of R ¹ and R ²

(Table 2)
Test example
1 2 3 4 5 6 7
(1) Alkylene oxide derivatives
a-1 10 − − − − − −
a-2 − 10 − − − − −
a-3 − − 10 − − − −
a-4 − − − 10 − − −
a-5 − − − − 10 − −
a-6 − − − − − 10 −
(2) Polyacrylic acid 5 5 5 5 5 5 5
(3) Sodium polyacrylate 4 4 4 4 4 4 4
(4) Sodium carboxymethyl cellulose
2 2 2 2 2 2 2
(5) Aluminum silicate 4 4 4 4 4 4 4
(6) Polyoxyethylene sorbitan monooleate (20E.O.) *
3 3 3 3 3 3 3
(7) Tartaric acid 1 1 1 1 1 1 1
(8) Glycerin 20 20 20 20 20 20 20
(9) Sorbitol 10 10 10 10 10 10 10
(10) 1,3-butylene glycol 5 5 5 5 5 5 5
(11) Methylparaben 0.15 0.15 0.15 0.15 0.15 0.15 0.15
(12) Purified water Remainder Remainder Remainder Remainder Remainder Remainder Remainder
Bleeding Yes Yes Yes No No No No bleeding (g) 0.01 0.022 0.025 0 0 0.005 0
Moist feeling 0.9 1.4 1.8 0.2 0.4 0.6 0.3
* (Polysorbate 80 ^TM : manufactured by Toho Chemical Co., Ltd.)
(Production method) (2) to (4) were dissolved in a part of purified water. To this, the parts in which (1) and (5) to (11) were dissolved in (12) were uniformly mixed to obtain a gel base. After this gel base was applied to a non-woven sheet to a uniform thickness, it was coated with a resin film so that moisture would not evaporate. At the time of use, the resin film was peeled off and the gel-like base surface was affixed.

  As can be seen from the above results, Test Example 4 in which a-4 (m = 0), which is an alkylene oxide derivative consisting only of ethylene oxide, and a-5 (n = 0), which is an alkylene oxide derivative consisting only of propylene oxide, were blended. In No. 5, bleeding was not recognized, and the moist feeling score was inferior to 0.2 to 0.4, which was almost the same as Test Example 7 in which no alkylene oxide derivative was blended. Also in Test Example 6 in which a-6, which is an alkylene oxide derivative whose Y / X is not less than about 0.15, was blended and no moist feeling was 0.6.

On the other hand, in Test Examples 1 to 3 in which the alkylene oxide derivatives a-1 to a-3 represented by the general formula (I) of the present invention were blended, the moist feeling score was 0.9 to 1.8. Thus, the moist feeling is remarkably improved as compared with Test Example 7 (smooth feeling score of 0.3) in which no alkylene oxide is blended. Particularly in Test Examples 2 and 3 in which a-2 and a-3, which are random polymers, were blended, the moist feeling was further superior to Test Example 1 in which a-1 as a block polymer was blended. In Test Examples 1 to 3, bleeding was observed.
From the above results, it was confirmed that by using the alkylene oxide derivative represented by the general formula (I) of the present invention as a moisturizing agent, moisturizing effect and bleeding effect can be given specifically to the skin.

<Blending amount of alkylene oxide derivative>
In order to investigate the suitable compounding quantity of an alkylene oxide derivative, the sheet-like cosmetics which consist of a compounding composition described in Tables 3-5 were adjusted, and it evaluated by said evaluation method.
(Table 3)
Test example
8 9 10 11 12
(1) Alkylene oxide derivative (a-2)
− 5 10 20 30
(2) Polyacrylic acid 5 5 5 5 5
(3) Sodium polyacrylate 4 4 4 4 4
(4) Sodium carboxymethyl cellulose
2 2 2 2 2
(5) Aluminum silicate 4 4 4 4 4
(6) Polyoxyethylene sorbitan monooleate (20E.O.) *
3 3 3 3 3
(7) Tartaric acid 1 1 1 1 1
(8) Glycerin 20 20 20 20 20
(9) Sorbitol 10 10 10 10 10
(10) 1,3-butylene glycol 5 5 5 5 5
(11) Methylparaben 0.15 0.15 0.15 0.15 0.15
(12) Purified water Remainder Remainder Remainder
Bleeding No Yes Yes Yes Yes Bleeding amount (g) 0 0.01 0.024 0.025 0.033
Moist feeling 0.3 0.8 1.8 1.9 2.6
* (Polysorbate 80 ^TM : manufactured by Toho Chemical Co., Ltd.)
(Production method) (2) to (4) were dissolved in a part of purified water. To this, the parts in which (1) and (5) to (11) were dissolved in (12) were uniformly mixed to obtain a gel base. This gel base was applied to a non-woven sheet in a uniform thickness, and then coated with a resin film so that moisture was not volatilized to obtain a gel sheet. At the time of use, the resin film was peeled off and the gel-like base surface was affixed.

(Table 4)
Test example
13 14 15 16 17 18
(1) Alkylene oxide derivatives
a-1 −10 − − − −
a-2 5-10-20 30
a-3 − − − 10 − −
(2) Agar 5 5 5 5 5 5
(3) Polyoxyethylene sorbitan monooleate (20E.O.) *
3 3 3 3 3 3
(4) Glycerin 20 20 20 20 20 20
(5) Sorbitol 10 10 10 10 10 10
(6) 1,3-butylene glycol 5 5 5 5 5 5
(7) Methylparaben 0.15 0.15 0.15 0.15 0.15 0.15
(8) Purified water Remainder Remainder Remainder Remainder Remainder Remainder
Bleeding Yes Yes Yes Yes Yes Yes Breeding amount (g) 0.01 0.01 0.021 0.026 0.026 0.035
Moist feeling 1.1 1.3 1.7 2.1 2.2 2.8
* (Polysorbate 80 ^TM : manufactured by Toho Chemical Co., Ltd.)
(Production method) (2) was dissolved in a portion of purified water by heating. To this, the parts in which (1) and (3) to (7) were dissolved in (8) were uniformly mixed to obtain a gel base. This gel base was applied to a resin film sheet with a uniform thickness, and then coated with a resin film to prevent evaporation of moisture, thereby obtaining a gel sheet. At the time of use, the resin film was peeled off and the gel-like base surface was affixed.

(Table 5)
Test example
19 20 21 22 23 24
(1) Alkylene oxide derivatives
a-1 −10 − − − −
a-2 5-10-20 30
a-3 − − − 10 − −
(2) Styrene-isoprene-styrene copolymer 50 50 50 50 50 50
(3) Polyoxyethylene sorbitan monooleate (20E.O.) *
3 3 3 3 3 3
(4) Liquid paraffin 5 5 5 5 5 5
(5) Jojoba oil 5 5 5 5 5 5
(6) Glycerin 5 5 5 5 5 5
(7) Isopropyl palmitate Remainder Remainder Remainder Remainder Remainder <br/> Bleeding Yes Yes Yes Yes Yes Bleeding amount (g) 0.01 0.020 0.025 0.03 0.036 0.04
Moist feeling 1.4 1.7 2.1 2.5 2.9 3.6
* (Polysorbate 80 ^TM : manufactured by Toho Chemical Co., Ltd.)
(Production method) (2) was dissolved in a volatile solvent by heating. A gel base was prepared by uniformly mixing the components (1) and (3) to (7). This gel base was applied to a resin film sheet with a uniform thickness, and then the volatile solvent was completely evaporated and covered with a resin film to obtain a gel sheet. At the time of use, the resin film was peeled off and the gel-like base surface was affixed.

From Tables 3-5, when the compounding quantity of an alkylene oxide derivative is the range of 5-30 mass%, it turns out that there exists a bleeding effect and a moist feeling is acquired. The bleeding effect and moist feeling were exhibited in both aqueous gels as shown in Tables 3 and 4 and oily gels as shown in Table 4. The moist feeling increased depending on the blending amount of the alkylene oxide derivative.
Furthermore, when the present inventors examined, it was confirmed that there exists a bleeding effect and a moist feeling is obtained in the range of 0.1 to 50% by mass of the alkylene oxide derivative.
From the above results, it was confirmed that the blending amount of the alkylene oxide derivative is preferably 0.1 to 50% by mass, particularly preferably 5.0 to 30% by mass.

Although the example of formulation of the sheet-like cosmetics of this invention is given to the following, the technical scope of this invention is not limited by these. All the obtained cosmetics were excellent in the skin moisturizing effect. Moreover, there was no discomfort such as itching in the used part, and the feeling of use was good.
Formulation Example 1
(Compounding ingredients) Mass%
(1) CH ₃ O [(EO) ₃₅ (PO) ₄₀ ] CH ₃ 5.0
(2) Polyacrylic acid 5.0
(3) Sodium polyacrylate 3.0
(4) Sodium carboxymethylcellulose 2.5
(5) Aluminum silicate 4.0
(6) Tartaric acid 0.7
(7) Glycerin 10.0
(8) 1,3-butylene glycol 5.0
(9) Sorbitol 10.0
(10) Tranexamic acid 1.0
(11) Dipotassium glycyrrhizinate 0.05
(12) Citric acid 0.1
(13) Sodium citrate 0.08
(14) Peonies extract 1.0
(15) Methylparaben 0.15
(16) Purified water residue (Production method)
(2) to (4) were dissolved in some purified water. To this, the parts in which (1) and (5) to (15) were dissolved in (16) were uniformly mixed to obtain a gel base. After this gel base was applied to a non-woven sheet to a uniform thickness, it was coated with a resin film so that moisture would not evaporate. At the time of use, the resin film was peeled off and the gel-like base surface was affixed.

Formulation Example 2
(Compounding ingredients) Mass%
(1) CH ₃ O [(EO) ₁₅ (PO) ₁₀ ] CH ₃ 10.0
(2) Agar 3.0
(3) Carboxymethylcellulose sodium 1.0
(4) Sodium polyacrylate 0.5
(5) Glycerin 10.0
(6) 1,3-butylene glycol 5.0
(7) Ascorbic acid glycoside 2.0
(8) Dipotassium glycyrrhizinate 0.05
(9) Yukinoshita Extract 1.0
(10) Caustic potash 0.4
(11) Methylparaben 0.15
(12) Purified water residue (Production method)
(2) was dissolved in a portion of purified water by heating. To this, the parts in which (1) and (3) to (11) were dissolved in (12) were uniformly mixed to obtain a gel base. This gel base was applied to a resin film sheet with a uniform thickness, and then coated with a resin film to prevent evaporation of moisture, thereby obtaining a gel sheet. At the time of use, the resin film was peeled off and the gel-like base surface was affixed.

Formulation Example 3
(Compounding ingredients) Mass%
(1) CH ₃ O (EO) ₃ (PO) ₃₀ (EO) ₃ CH ₃ 15.0
(2) Styrene-isoprene-styrene copolymer 45.0
(3) Liquid paraffin 10.0
(4) Squalane 5.0
(5) Olive oil 1.0
(6) Vitamin A palmitate 0.05
(7) Vitamin E acetate 0.05
(8) Lavender oil 0.01
(9) Isopropyl palmitate remainder (production method)
(2) was dissolved by heating in a volatile solvent. A gel base was prepared by uniformly mixing the components (1) and (3) to (9). This gel base was applied to a resin film sheet with a uniform thickness, and then the volatile solvent was completely evaporated and covered with a resin film to obtain a gel sheet. At the time of use, the resin film was peeled off and the gel-like base surface was affixed.

Claims (6)

0.1 to 50% by mass of an alkylene oxide derivative represented by the following general formula (I),
A sheet-like cosmetic comprising a gel-like base containing a gelling agent supported on a sheet-like support.
(Chemical formula 1)
R ¹ O — [(AO) _m (EO) _n ] —R ² (I)
(In the formula, AO is an oxyalkylene group having 3 to 4 carbon atoms, EO is an oxyethylene group, m and n are average addition moles of oxyalkylene groups and oxyethylene groups having 3 to 4 carbon atoms, respectively, 1 ≦ m ≦ 70, 1 ≦ n ≦ 70, and the ratio of the oxyethylene group to the total of the oxyalkylene group and the oxyethylene group is 20 to 80% by mass.The oxyalkylene group and the oxyethylene group are added in a block shape. R ¹ and R ² may be the same or different and each is a hydrocarbon group having 1 to 4 carbon atoms or a hydrogen atom, and hydrogen relative to the number of hydrocarbon groups in R ¹ and R ² (The ratio of the number of atoms is 0.15 or less.)   The cosmetic according to claim 1, wherein oxyalkylene groups and oxyethylene groups of the alkylene oxide derivative are randomly added.   The cosmetic according to claim 1 or 2, wherein the gelling agent is a water-soluble polymer.   4. The sheet-like cosmetic according to claim 3, wherein the gelling agent is agar.   The cosmetic according to claim 1 or 2, wherein the gelling agent is an oily polymer.   6. The sheet-like cosmetic according to claim 5, wherein the gelling agent is a styrene-isoprene-styrene copolymer.