WO2014157265A1 - 乳化型外用組成物 - Google Patents
乳化型外用組成物 Download PDFInfo
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- WO2014157265A1 WO2014157265A1 PCT/JP2014/058396 JP2014058396W WO2014157265A1 WO 2014157265 A1 WO2014157265 A1 WO 2014157265A1 JP 2014058396 W JP2014058396 W JP 2014058396W WO 2014157265 A1 WO2014157265 A1 WO 2014157265A1
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- acid
- clay mineral
- external composition
- emulsion
- water
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/02—Cosmetics or similar toiletry preparations characterised by special physical form
- A61K8/04—Dispersions; Emulsions
- A61K8/06—Emulsions
- A61K8/062—Oil-in-water emulsions
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/19—Cosmetics or similar toiletry preparations characterised by the composition containing inorganic ingredients
- A61K8/26—Aluminium; Compounds thereof
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
- A61K8/33—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing oxygen
- A61K8/36—Carboxylic acids; Salts or anhydrides thereof
- A61K8/365—Hydroxycarboxylic acids; Ketocarboxylic acids
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
- A61Q19/00—Preparations for care of the skin
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K2800/00—Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects
- A61K2800/20—Chemical, physico-chemical or functional or structural properties of the composition as a whole
- A61K2800/30—Characterized by the absence of a particular group of ingredients
- A61K2800/33—Free of surfactant
Definitions
- the present invention relates to an emulsified external composition containing a water-soluble organic acid and a high content of clay mineral, and having a viscosity of a certain numerical value or more, and suppressing cracking of the preparation.
- the fine particles of clay minerals have strong chemical adsorptive properties, and have the property of adsorbing water, fat and oil components and proteins between fine particles, and the action of preventing evaporation of moisture from the skin. Utilizing these properties, clay minerals are widely used in compositions for external use to remove skin lipids and proteins, skin dirt such as exfoliated parts, and pores, and enhance skin flexibility. (For example, Patent Document 1).
- Patent Documents 5 and 6 In order to further promote the effect of clay minerals, an external composition in which the blending amount is increased while taking care of the viscosity of the preparation has also been proposed (Patent Documents 5 and 6).
- water-soluble organic acids are widely used because they have a peeling effect to remove unnecessary keratin and are useful in beauty.
- the present inventor has conceived of combining a water-soluble organic acid in a composition having a higher blending amount in order to further promote the effect of the above clay mineral.
- the external composition containing clay mineral is applied to the skin and kept for a certain period of time, and is removed by wiping off the skin or rinsing with water to remove unnecessary keratin and oil components. Since it can be suitably used as a cosmetic, it was decided to ensure an appropriate viscosity as such a preparation.
- the present invention provides a composition for external use that solves such problems and contains a water-soluble organic acid and a high blending amount of clay mineral, and has a specific viscosity but does not crack during storage. The task is to do.
- the gist of the present invention is as follows. ⁇ 1> An emulsified external composition comprising (A) a water-soluble organic acid and (B) 5% by weight or more of a clay mineral and having a viscosity of 10,000 mPa ⁇ s or more.
- ⁇ 2> The emulsion-type external composition according to ⁇ 1>, wherein the water-soluble organic acid (A) is a hydroxycarboxylic acid.
- ⁇ 3> The emulsified external composition according to ⁇ 1> or ⁇ 2>, wherein the content of the clay mineral (B) in the emulsified external composition is 5 to 50% by weight.
- ⁇ 4> The emulsion-type external composition according to any one of ⁇ 1> to ⁇ 3>, wherein the water-soluble organic acid (A) is an ⁇ -hydroxy acid.
- the water-soluble organic acid (A) is selected from lactic acid, glycolic acid, malic acid, tartaric acid, citric acid, glyceric acid, pyruvic acid, mandelic acid, gluconic acid, phytic acid, succinic acid, malonic acid and oxalic acid.
- the emulsion-type external composition according to any one of ⁇ 1> to ⁇ 3>, which is at least one selected from the group consisting of:
- the clay mineral (B) is silt, marine silt, tanakura clay, smectite clay mineral, kaolin clay mineral, antigolite clay mineral, pyrophyllite clay mineral, mica clay mineral, vermiculite clay
- the clay mineral (B) is at least one selected from the group consisting of silt, marine silt, tanacla clay, bentonite, montmorillonite, hectorite and kaolin, and any one of ⁇ 1> to ⁇ 6>
- the emulsion-type external composition as described.
- ⁇ 8> Any one of ⁇ 1> to ⁇ 7>, including at least one selected from the group consisting of hydrocarbon oils, ester oils, higher alcohols and higher fatty acids as an oil phase component in the emulsion-type external composition
- a cosmetic comprising the emulsified external composition according to any one of ⁇ 1> to ⁇ 8>.
- an external composition containing a water-soluble organic acid and a high blending amount of clay mineral and having a certain viscosity, but does not crack during storage.
- the emulsion-type external composition of the present invention contains a water-soluble organic acid and a high blending amount of clay mineral and has a certain viscosity.
- a method for preparing the emulsion-type external composition of the present invention, and the like will be described.
- water-soluble organic acid Since the emulsion-type external composition of the present invention contains a water-soluble organic acid (A), it has a peeling effect.
- water-soluble means that the amount dissolved in 1000 g of water at 25 ° C. is 1 g or more (usually 900 g or less).
- the water-soluble organic acid (A) is preferably a hydroxycarboxylic acid from the viewpoint of the peeling effect.
- Hydroxycarboxylic acid is a compound having a hydroxyl group and a carboxyl group, and the number of these functional groups is not particularly limited, but usually 1 to 10 hydroxyl groups and 1 to 5 carboxyl groups.
- the water-soluble organic acid (A) is more preferably an ⁇ -hydroxy acid.
- water-soluble organic acids (A) examples include lactic acid, glycolic acid, malic acid, tartaric acid, citric acid, glyceric acid, pyruvic acid, mandelic acid, gluconic acid, phytic acid, succinic acid, malonic acid and shu Among these, lactic acid, glycolic acid, malic acid, tartaric acid, citric acid and gluconic acid are preferable from the viewpoint of the peeling effect.
- the water-soluble organic acid (A) described above may be used alone or in combination of two or more.
- the content of the water-soluble organic acid (A) in the emulsion-type external composition (in 100% by weight) of the present invention is usually 0.01 to 20% by weight, preferably 0.5 to 10% by weight.
- the content of the water-soluble organic acid (A) is less than 0.01% by weight, the peeling effect tends to be not obtained.
- the content exceeds 20% by weight, cracking is suppressed in the emulsion-type external composition of the present invention. There are cases where it cannot be completed.
- the emulsified external composition of the present invention contains the clay mineral (B) in a high blending amount. Specifically, the amount is 5% by weight or more in 100% by weight of the emulsion-type external composition. If the amount is less than 5% by weight, even if the water-soluble organic acid (A) coexists, the problem of cracking does not occur, but the amount of the clay mineral (B) is high and the water-soluble organic acid is present. If the acid (A) coexists and the viscosity is above a certain level, the problem of cracking occurs.
- the clay mineral (B) adsorbs fat and oil components and proteins as described in the section of [Background Technology], so it has excellent cleaning action and is unnecessary by applying the emulsified external composition of the present invention to the skin. It is expected to remove clean oils and fats, keratin, etc., and to make the skin clean and beautiful.
- conventionally used clay minerals can be used without particular limitation as the clay mineral (B), and the clay mineral (B) may be either a natural product or a synthetic product.
- Examples of the clay mineral (B) include silt; Marine silt; Tanakura clay; Smectite clay minerals such as bentonite, montmorillonite, heraclite, beidellite, nontonite, saponite, hectorite, lucentite, sauconite and stevensite; Kaolin clay minerals such as kaolin, nacrite, dickite, halloysite and chrysotile; Antigolite clay minerals such as Antigolite, Amesite and Kronsteadite; Pyrophyllite clay minerals such as pyrophyllite and talc (talc); Mica-based clay minerals such as illite, sea green stone, ceradonite, sericite, mica, muscovite, chromium muscovite and biotite; And vermiculite clay minerals such as vermiculite; and chlorite clay minerals such as chlorite.
- the silt is sediment in lakes in various regions
- the marine silt is sediment (sea mud) in the sea such as the middle and southern part of Okinawa Prefecture
- the Tanakura clay is a deposit in the Tanakura Crush Zone in Fukushima Prefecture.
- clay mineral (B) Commercial products of clay mineral (B) include milonecton, mironekton R (manufactured by Dainippon Kasei Co., Ltd.), marine silt FP (manufactured by Angkor Anne), Kunipia, smecton (manufactured by Kunimine Industries Co., Ltd.), veegum ( Examples include Vanderbilt) and Benton LT (Toshin Kasei).
- silt marine silt, tanak clay, bentonite, montmorillonite, hectorite and kaolin are preferred from the viewpoint of the skin cleansing effect or the feeling of use of the emulsified external composition of the present invention.
- the clay mineral (B) described above may be used alone or in combination of two or more.
- the content of the clay mineral (B) in the emulsified external composition of the present invention (in 100% by weight) is effective for the skin cleaning action and the occurrence of cracks that are the problems of the present invention. From the viewpoint of suppression, it is preferably 5 to 50% by weight, more preferably 7 to 40% by weight, still more preferably 10 to 30% by weight, and particularly preferably 15 to 25% by weight.
- the content ratio of the clay mineral (B) to the water-soluble organic acid (A) is not particularly limited, but the component (B) is usually 0 with respect to 1 part by weight of the component (A).
- Examples include a range of 25 to 500 parts by weight, preferably 1 to 60 parts by weight, more preferably 2 to 6 parts by weight.
- the composition of the present invention is an emulsified external composition, it usually contains a surfactant.
- the surfactant those conventionally used in the technical field can be widely used.
- the surfactant include sorbitan fatty acid esters such as sorbitan monoisostearate, sorbitan monolaurate, sorbitan monopalmitate, sorbitan monostearate, penta-octyl diglycerol sorbitan and tetra-octyl diglycerol sorbitan Propylene glycol fatty acid esters such as propylene glycol monostearate; polyethylene glycol fatty acid esters such as polyethylene glycol monostearate; polyoxyethylene hydrogenated castor oil 40 (HCO-40), polyoxyethylene hydrogenated castor oil 50 (HCO -50), polyoxyethylene hardened castor oil 60 (HCO-60) and polyoxyethylene hardened castor oil 80 (HCO-80).
- HCO-40 polyoxyethylene hydrogenated castor oil 40
- Castor oil derivatives such as glyceryl fatty acid esters such as glyceryl stearate (glyceryl monostearate) and glyceryl oleate; polyoxyethylene (20) sorbitan (polysorbate 20) monolaurate, polyoxyethylene (20) sorbitan monostearate (polysorbate) 60), polyoxyethylene sorbitan fatty acid esters such as polyoxyethylene (20) sorbitan monooleate (20) sorbitan (polysorbate 80) and polyoxyethylene (20) sorbitan isostearate; polyoxyethylene monococonut oil fatty acid glyceryl; glycerin alkyl ether; Alkyl glucosides; polyoxyalkylene alkyl ethers such as polyoxyethylene cetyl ether and polyoxyethylene lauryl ether; And amines such as Riruamin and oleylamine can be given.
- polyoxyethylene hydrogenated castor oil derivatives and glycerin fatty acid esters are preferable from the viewpoint of effectively suppressing cracking.
- the surfactant may be used alone or in combination of two or more.
- the content of the surfactant in the emulsified external composition of the present invention (in 100% by weight) is usually 0.1 to 10% by weight, preferably from the viewpoint of emulsifying action in order to effectively suppress cracking. 0.5 to 5% by weight.
- the emulsified external composition of the present invention may be either O / W type or W / O type, and the emulsification mode is appropriately selected according to the use of the emulsified external composition described later.
- the adjustment method of the mode of emulsification is well known to those skilled in the art.
- oily components that have been used in conventional external compositions can be used without particular limitation.
- examples thereof include hydrocarbon oils. , Ester oils, higher alcohols and higher fatty acids.
- hydrocarbon oil examples include squalane, squalene, paraffin, liquid paraffin, light liquid paraffin, heavy liquid paraffin, microcrystalline wax, and petroleum jelly.
- ester oil examples include isobutyl adipate, 2-hexyldecyl adipate, isocetyl isostearate, trimethylolpropane triisostearate, glyceryl tri-2-ethylhexanoate, cetyl octanoate, oleyl oleate, octyl oleate Dodecyl, isocetyl stearate, butyl stearate, glyceryl stearate, isopropyl palmitate, 2-ethylhexyl palmitate, 2-hexyl palmitate, cetyl palmitate, isopropyl myristate, octyldodecyl myristate, myristyl myristate, Examples include
- the higher alcohol examples include cetanol, cetostearyl alcohol, stearyl alcohol, behenyl alcohol, octyldodecanol, isostearyl alcohol, lauryl alcohol, myristyl alcohol, palmityl alcohol, hexadecyl alcohol, oleyl alcohol, hexyldodecanol, and batyl. Alcohol, phytosterols and cholesterol, etc.
- higher fatty acid examples include lauric acid, myristic acid, palmitic acid, stearic acid, behenic acid, undecylenic acid, oleic acid, linoleic acid, linolenic acid, arachidonic acid, eicosapentaenoic acid, docosahexaenoic acid, and isostearic acid.
- lauric acid myristic acid, palmitic acid, stearic acid, behenic acid, undecylenic acid, oleic acid, linoleic acid, linolenic acid, arachidonic acid, eicosapentaenoic acid, docosahexaenoic acid, and isostearic acid.
- oil phase components may be used alone or in combination of two or more, and the content of the oil phase component in the emulsion-type external composition of the present invention (in 100% by weight) is usually The range is about 0.1 to 15% by weight.
- the emulsified external composition of the present invention contains the water-soluble organic acid (A) and clay mineral (B) described above, and usually contains the surfactant and oil phase component, and if necessary, For example, other components described below may be included.
- the content of these components is in a known range, and is an amount that shows the effect of each component and does not impair the effect of the present invention. Even if each component is used alone, two or more types are used. You may use together and the component which shows the same effect may be used individually by 1 type, or may use 2 or more types together.
- Such other components are distributed in the water phase or oil phase in the emulsified external composition of the present invention according to their hydrophilicity (hydrophobicity).
- Organic acid salt As described above, since the state of gelation of the clay mineral (B) varies depending on the pH of the composition, the composition functions as a buffering agent in order to maintain the pH of the emulsified external composition of the present invention within a certain range.
- An organic acid salt may be included. Specific examples thereof include potassium salts, sodium salts and calcium salts such as citric acid, malic acid, succinic acid, lactic acid, tartaric acid, pyrrolidone carboxylic acid and gluconic acid.
- the emulsified external composition of the present invention is suitably used for applications where a certain viscosity is required as described later.
- the viscosity of the composition increases due to the presence of the clay mineral (B), but when it is insufficient, the viscosity of the emulsified external composition can be adjusted to an appropriate range by blending a thickener.
- cellulose thickeners such as methylcellulose, ethylcellulose, hydroxyethylcellulose, hydroxymethylcellulose, hydroxypropylcellulose, hydroxypropylmethylcellulose, carboxymethylcellulose and carboxyethylcellulose, guar gum, xanthan gum, pectin, pullulan, gelatin, locust bean gum , Agar, polyvinyl alcohol, polyvinylpyrrolidone, sodium polyacrylate, polyacrylamide, polyethylene glycol, alginic acid, propylene glycol alginate, macrogol, sodium chondroitin sulfate, hyaluronic acid, sodium hyaluronate, (hydroxyethyl acrylate / acryloyldimethyltaurine Na ) Copolymer, (A Leroy taurate ammonium / vinylpyrrolidone) copolymer, and the like polyacrylate crosspolymer and the like.
- cellulose thickeners such as methylcellulose, ethylcellulose
- a chelating agent If the emulsified external composition of the present invention is stored, water separation may occur, and moisture may rise to the top of the composition. At this time, due to the influence of a metal considered to be derived from clay mineral (B) and the like. The water may be colored. Since such an appearance may give a user unpleasant feeling, it is preferable to prevent the coloring by blending a chelating agent into the emulsified external composition. Specific examples thereof include EDTA ⁇ disodium salt and EDTA ⁇ calcium disodium salt.
- a preservative may be added to the composition.
- a preservative include, for example, phenoxyethanol, benzoic acid, sodium benzoate, dehydroacetic acid, sodium dehydroacetate, isobutyl paraoxybenzoate, isopropyl paraoxybenzoate, butyl paraoxybenzoate, ethyl paraoxybenzoate, propyl paraoxybenzoate, paraoxybenzoate
- benzyl benzoate and methyl paraoxybenzoate examples include, for example, phenoxyethanol, benzoic acid, sodium benzoate, dehydroacetic acid, sodium dehydroacetate, isobutyl paraoxybenzoate, isopropyl paraoxybenzoate, butyl paraoxybenzoate, ethyl paraoxybenzoate, propyl paraoxybenzoate, paraoxybenzoate
- benzyl benzoate and methyl paraoxybenzoate examples include, for example, phenoxyethanol, benzoic acid, sodium benzoate
- a polyhydric alcohol may be blended.
- Specific examples thereof include glycerin, diglycerin, triglycerin, propylene glycol, dipropylene glycol, 1,3-butanediol, ethylene glycol, diethylene glycol, isoprene glycol, 1,3-butylene glycol, sorbitol, xylitol, erythritol, mannitol. , Pentanediol, hexanediol, octanediol, decanediol, neopentyl glycol, and the like.
- the feeling of adhesion to the skin is improved particularly when the composition is used for pack cosmetics.
- cosmetic raw materials such as inorganic powder, organic powder, and pigment
- examples thereof include titanium oxide, zinc oxide, calcium carbonate, aluminum silicate
- examples include barium silicate, silica, barium sulfate, calcium phosphate, calcium carbonate, boron nitride, iron oxide, nylon, polyethylene powder, polystyrene powder, polyalkyl methacrylate powder, cellulose powder, urethane powder, and trimethylsilsesquioxane powder.
- the emulsified external composition of the present invention contains a pH adjusting agent in order to control the viscosity of the composition by adjusting the pH and adjusting the gelation state of the clay mineral (B) and to enhance the feeling of use. You may go out.
- a pH adjusting agent in order to control the viscosity of the composition by adjusting the pH and adjusting the gelation state of the clay mineral (B) and to enhance the feeling of use. You may go out.
- Specific examples thereof include inorganic acids (such as hydrochloric acid and sulfuric acid), inorganic bases (such as potassium hydroxide and sodium hydroxide) and organic bases (such as triethanolamine, diisopropanolamine and triisopropanolamine).
- the emulsification-type external composition of the present invention includes components that are blended in cosmetics and the like, for example, dyes, as long as the effects of the present invention are not impaired, depending on the application.
- Ultraviolet absorbers, humectants, preservatives, fragrances, various drugs, and the like can be blended.
- the emulsified external composition of the present invention can be prepared by mixing and emulsifying the various components described above according to known methods.
- An example of the preparation method is as follows. A water phase and an oil phase are prepared separately and each is heated to 70 ° C. or higher. Thereafter, both phases are mixed and stirred under a temperature condition of 70 ° C. or higher, and a mechanical stirring force such as a homomixer is applied as necessary to prepare the emulsion-type external composition of the present invention.
- a water-soluble organic acid (A) coexists in a composition having a certain viscosity with a high content of clay mineral (B), such as 5% by weight or more, cracking occurs during storage.
- B clay mineral
- the water-soluble organic acid (A) is usually added. Even when the salt is added, the pH of the composition can be adjusted by adding hydrochloric acid or the like. When it is lowered, the water-soluble organic acid (A) that is a weak acid is liberated. Thus, in the preparation of the composition, the water-soluble organic acid (A) is not added, but an emulsified external composition containing the free water-soluble organic acid (A) as a result of pH adjustment or the like is also the present invention. Included in the range.
- the emulsified external composition of the present invention contains a lot of components that increase the viscosity, such as clay mineral (B), and has a relatively high viscosity suitable for uses such as pack cosmetics.
- the viscosity of the emulsion-type external composition of the present invention is 10,000 mPa ⁇ s or more. When the viscosity is less than 10,000 mPa ⁇ s, the composition easily flows down from the skin when applied to the skin, and the oil / fat component / protein adsorption effect of the clay mineral (B) is not sufficiently exhibited.
- the viscosity refers to a viscosity measured with a TV10 viscometer measured at 30 seconds after rotating at 25 ° C. and a rotation speed of 20 rpm with an H7 rotor.
- the viscosity of the emulsion-type external composition of the present invention is preferably 10,000 to 300,000 mPa ⁇ s, particularly preferably 10,000 to 100,000 mPa ⁇ s, from the viewpoint of a suitable viscosity in various applications.
- the viscosity of the composition can be adjusted by adjusting the content of a component having a thickening action such as clay mineral (B) or adjusting pH.
- the pH of the emulsion-type external composition of the present invention is not particularly limited as long as the water-soluble organic acid (A) can exhibit a peeling effect, but is usually in the range of 1 to 7, preferably 3 to 6. It is in the range of the degree.
- the clay mineral (B) becomes a gel in the presence of water, and this gives a desirable viscosity to the emulsified external composition of the present invention, but if the pH is low, the gelation state becomes unstable and the viscosity is insufficient. It may become.
- a viscosity suitable for applications such as pack cosmetics of 10,000 mPa ⁇ s or more can be achieved even in a weakly acidic environment such as about pH 5.
- the emulsified external composition of the present invention contains a water-soluble organic acid (A) excellent in peeling effect, and a clay mineral (B) excellent in fat and oil component / protein adsorption effect, and is 10,000 mPa ⁇ s or more. Has a relatively high viscosity.
- the emulsified external composition of the present invention is applied to a cosmetic material, particularly the skin, kept for a certain period of time, and then removed by wiping off from the skin, rinsing with water or peeling off, etc. It is suitable for the use of a pack cosmetic that removes various keratin and oil and fat components.
- the preparation form of the pack cosmetic examples include a cream-type or mud-type preparation, a sheet-type preparation in which the emulsion-type external composition is immersed in a base material such as a nonwoven fabric, or a layer of the composition is formed on the base material surface.
- the form conventionally employed for the pack beauty material can be employed without any particular limitation.
- the emulsified external composition is used, for example, in a tube-type container or a cylindrical container.
- the material of the container include polyethylene (HDPE, LDPE, LLDPE, etc.), polyethylene terephthalate, polypropylene, ABS resin, ethylene vinyl alcohol resin, polystyrene, glass, metal (aluminum, etc.), and the like.
- these materials are combined by performing various coating treatments or mixing these materials, for example, in consideration of strength, flexibility, weather resistance, or stability of components such as the composition or the material. Or can be laminated and used as a container material.
- the emulsified external composition of the present invention since the occurrence of cracks is suppressed, the composition can be discharged smoothly from a tube-type container, and the user does not feel uncomfortable in terms of appearance. .
- an unnecessary oil / fat component is obtained due to the peeling effect by the water-soluble organic acid (A) and the oil / fat component / protein removing action by the clay mineral (B). It is expected that the skin can be cleaned and beautified by removing skin, keratin, various stains and the like.
- test preparations of Examples and Comparative Examples were prepared by a conventional method. Specifically, after preparing an aqueous phase in which water-soluble components were dissolved in purified water, viscosity minerals and oil-soluble components were dispersed in the aqueous phase. Further, in the Examples group, an aqueous phase and an oil phase (clay mineral and oil-soluble component) were mixed while being heated to 70 ° C. to 80 ° C., and emulsified with a homomixer to prepare an emulsified composition.
- the viscosity of each test preparation was measured after 30 seconds from the start of rotation under the conditions of 25 ° C. and rotation speed of 20 rpm using an H7 rotor using a TV10 viscometer using the preparation in a glass 30 ml screw cap bottle. It is a measured value (note that the measurement limit (upper limit) of the viscometer is 200000 mPa ⁇ s).
- Comparative Examples 1 to 3 are compositions that are not emulsified. Both contain water-soluble organic acids (lactic acid and gluconic acid), and further contain clay mineral at a high content of 30% by weight or more, but Comparative Example 1 having a viscosity of less than 10,000 mPa ⁇ s has no cracks. In Comparative Examples 2 and 3 exceeding this, cracks are generated.
- Comparative Examples 5 to 8 are compositions that are not emulsified.
- the clay mineral is blended at a high content and the viscosity is over 10,000 mPa ⁇ s, but no water-soluble organic acid is blended and no cracks are generated.
- Comparative Example 6 When such a composition contains a water-soluble organic acid (Comparative Example 6), cracking occurs.
- Comparative Example 7 contains a water-soluble organic acid and a viscosity mineral, and the viscosity exceeds 10,000 mPa ⁇ s (polyacrylate crosspolymer-6 is added as a thickener), but contains clay mineral. The amount is less than 5% by weight and no cracks have occurred.
- Comparative Example 8 the clay mineral is blended at a high content and the viscosity exceeds 10,000 mPa ⁇ s, but the water-soluble organic acid is not blended, and a salt of the water-soluble organic acid is blended instead. (Note that the pH is in the alkaline region). It can be seen that such a composition does not cause cracks.
- the emulsion-type external composition of the present invention having the composition shown in Table 5 below was prepared in the same manner as in the above [Test Examples] (Examples 8 to 13).
- the emulsion-type external composition had a viscosity of 10000 mPa ⁇ s or more and a pH in the range of 3-7.
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Abstract
Description
<1>(A)水溶性有機酸と、(B)粘土鉱物5重量%以上とを含み、粘度が10000mPa・s以上である乳化型外用組成物。
[乳化型外用組成物]
上記の通り本発明の乳化型外用組成物は、水溶性有機酸と高配合量の粘土鉱物とを含み、一定の粘度を有する。以下、これら各成分及びその他の成分、本発明の乳化型外用組成物の調製方法等について説明する。
本発明の乳化型外用組成物は水溶性有機酸(A)を含んでいるため、ピーリング効果を有している。なお、本明細書において水溶性とは、25℃の水1000gに溶解する量が1g以上(通常900g以下)であることを意味する。
また本発明の乳化型外用組成物(100重量%中)における水溶性有機酸(A)の含有量は、通常0.01~20重量%、好ましくは0.5~10重量%である。水溶性有機酸(A)の含有量が0.01重量%未満では、ピーリング効果が得られない傾向があり、一方20重量%を超えると、本発明の乳化型外用組成物においてひび割れを抑制しきれない場合がある。
本発明の乳化型外用組成物は、粘土鉱物(B)を高配合量で含んでいる。具体的には、乳化型外用組成物100重量%中5重量%以上の量である。5重量%に満たないような少量の配合であれば水溶性有機酸(A)が共存していてもひび割れの問題は生じないが、高い配合量で粘土鉱物(B)を含みかつ水溶性有機酸(A)が共存して粘度が一定以上であると、ひび割れの問題が発生する。
マリンシルト;
タナクラクレイ;
ベントナイト、モンモリロナイト、ヘラクライト、バイデライト、ノントナイト、サポナイト、ヘクトライト、ルーセンタイト、ソーコナイト及びスチブンサイト等のスメクタイト系粘土鉱物;
カオリン、ナクライト、ディッカイト、ハロイサイト及びクリソタイル等のカオリン系粘土鉱物;
アンティゴライト、アメサイト及びクロンステダイトなどのアンティゴライト系粘土鉱物;
パイロフィライト及びタルク(滑石)などのパイロフィライト系粘土鉱物;
イライト、海緑石、セラドナイト、セリサイト、マイカ(雲母)、白雲母、クロム白雲母及び黒雲母などの雲母系粘土鉱物;
バーミキュライトなどのバーミキュライト系粘土鉱物;並びに
緑泥石(クロライト)などの緑泥石系粘土鉱物などが挙げられる。
また、前記粘土鉱物(B)の本発明の乳化型外用組成物(100重量%中)における含有量は、皮膚の洗浄作用及び、本発明の課題であるひび割れが発生しつつもそれを有効に抑制する観点から好ましくは5~50重量%であり、より好ましくは7~40重量%であり、さらに好ましくは10~30重量%であり、特に好ましくは15~25重量%である。
本発明の組成物は乳化型外用組成物であるので、通常界面活性剤を含んでいる。
本発明においては前記界面活性剤として、当該技術分野において従来使用されているものを広く使用することができる。前記界面活性剤としては、例えば、ソルビタンモノイソステアレート、ソルビタンモノラウレート、ソルビタンモノパルミテート、ソルビタンモノステアレート、ペンタ-オクチル酸ジグリセロールソルビタン及びテトラ-オクチル酸ジグリセロールソルビタンなどのソルビタン脂肪酸エステル類;モノステアリン酸プロピレングリコールなどのプロピレングリコール脂肪酸エステル類;モノステアリン酸ポリエチレングリコールなどのポリエチレングリコール脂肪酸エステル類;ポリオキシエチレン硬化ヒマシ油40(HCO-40)、ポリオキシエチレン硬化ヒマシ油50(HCO-50)、ポリオキシエチレン硬化ヒマシ油60(HCO-60)及びポリオキシエチレン硬化ヒマシ油80(HCO-80)などのポリオキシエチレン硬化ヒマシ油誘導体;ステアリン酸グリセリル(モノステアリン酸グリセリン)、オレイン酸グリセリルなどのグリセリン脂肪酸エステル;モノラウリル酸ポリオキシエチレン(20)ソルビタン(ポリソルベート20)、モノステアリン酸ポリオキシエチレン(20)ソルビタン(ポリソルベート60)、モノオレイン酸ポリオキシエチレン(20)ソルビタン(ポリソルベート80)及びイソステアリン酸ポリオキシエチレン(20)ソルビタンなどのポリオキシエチレンソルビタン脂肪酸エステル類;ポリオキシエチレンモノヤシ油脂肪酸グリセリル;グリセリンアルキルエーテル;アルキルグルコシド;ポリオキシエチレンセチルエーテル及びポリオキシエチレンラウリルエーテルなどのポリオキシアルキレンアルキルエーテル;ステアリルアミン及びオレイルアミンなどのアミン類などが挙げられる。
本発明において界面活性剤は、1種単独で使用しても2種以上併用してもよい。
本発明の乳化型外用組成物はO/W型及びW/O型のいずれでもよく、何れの乳化態様とするかは、後述する前記乳化型外用組成物の用途に応じて適宜選択される。乳化の態様の調整方法は当業者に周知である。
前記エステル油の具体例としては、アジピン酸イソブチル、アジピン酸2-ヘキシルデシル、イソステアリン酸イソセチル、トリイソステアリン酸トリメチロールプロパン、トリ2-エチルヘキサン酸グリセリル、オクタン酸セチル、オレイン酸オレイル、オレイン酸オクチルドデシル、ステアリン酸イソセチル、ステアリン酸ブチル、ステアリン酸グリセリル、パルミチン酸イソプロピル、パルミチン酸-2-エチルヘキシル、パルミチン酸-2-ヘキシルデシル、パルミチン酸セチル、ミリスチン酸イソプロピル、ミリスチン酸オクチルドデシル、ミリスチン酸ミリスチル、ラウリン酸エチル及びリンゴ酸ジイソステアリルなどが挙げられ、
前記高級アルコールの具体例としては、セタノール、セトステアリルアルコール、ステアリルアルコール、ベヘニルアルコール、オクチルドデカノール、イソステアリルアルコール、ラウリルアルコール、ミリスチルアルコール、パルミチルアルコール、ヘキサデシルアルコール、オレイルアルコール、ヘキシルドデカノール、バチルアルコール、フィトステロール及びコレステロールなどが挙げられ、
前記高級脂肪酸の具体例としては、ラウリン酸、ミリスチン酸、パルミチン酸、ステアリン酸、ベヘン酸、ウンデシレン酸、オレイン酸、リノール酸、リノレン酸、アラキドン酸、エイコサペンタエン酸、ドコサヘキサエン酸及びイソステアリン酸などが挙げられる。
本発明の乳化型外用組成物は、以上説明した水溶性有機酸(A)及び粘土鉱物(B)を含み、また通常上記界面活性剤及び油相成分を含んでおり、さらに必要に応じて、例えば以下に説明するその他の成分を含んでいてもよい。これらの成分の含有量は公知の範囲であって、各成分の効果を示し、かつ本発明の効果を損なわない程度の量とされ、各成分を1種単独で使用しても2種以上を併用してもよく、また同様の効果を示す成分を1種単独で使用しても2種以上を併用してもよい。
上述の通り粘土鉱物(B)は組成物のpHによってゲル化の状態が変化するので、本発明の乳化型外用組成物のpHを一定範囲に維持するため、当該組成物は緩衝剤として機能する有機酸塩を含んでいてもよい。その具体例としては、クエン酸、リンゴ酸、コハク酸、乳酸、酒石酸、ピロリドンカルボン酸及びグルコン酸等の、カリウム塩、ナトリウム塩及びカルシウム塩などが挙げられる。
本発明の乳化型外用組成物は、後述する通り一定の粘度が求められる用途に好適に使用される。粘土鉱物(B)の存在により組成物の粘度は高まるが、不十分である場合には増粘剤を配合することによって、乳化型外用組成物の粘度を適切な範囲とすることができる。その具体例としては、メチルセルロース、エチルセルロース、ヒドロキシエチルセルロース、ヒドロキシメチルセルロース、ヒドロキシプロピルセルロース、ヒドロキシプロピルメチルセルロース、カルボキシメチルセルロース及びカルボキシエチルセルロースなどのセルロース系増粘剤、グアーガム、キサンタンガム、ペクチン、プルラン、ゼラチン、ローカストビーンガム、寒天、ポリビニルアルコール、ポリビニルピロリドン、ポリアクリル酸ナトリウム、ポリアクリルアミド、ポリエチレングリコール、アルギン酸、アルギン酸プロピレングリコール、マクロゴール、コンドロイチン硫酸ナトリウム、ヒアルロン酸、ヒアルロン酸ナトリウム、(アクリル酸ヒドロキシエチル/アクリロイルジメチルタウリンNa)コポリマー、(アクリロイルジメチルタウリンアンモニウム/ビニルピロリドン)コポリマー、並びにポリアクリレートクロスポリマーなどが挙げられる。
本発明の乳化型外用組成物を保存しておくと、離水が起こり、水分が組成物の上部に浮き出てくる場合があり、このとき粘土鉱物(B)などに由来すると考えられる金属の影響で、水が着色していることがある。このような外観はユーザーに不快感を与えかねないので、乳化型外用組成物にキレート剤を配合することによって前記着色を防止することが好ましい。その具体例としては、EDTA・2ナトリウム塩及びEDTA・カルシウム・2ナトリウム塩などが挙げられる。
本発明の乳化型外用組成物の保存安定性を高めるために、当該組成物に保存剤を配合してもよい。その具体例としては、例えば、フェノキシエタノール、安息香酸、安息香酸ナトリウム、デヒドロ酢酸、デヒドロ酢酸ナトリウム、パラオキシ安息香酸イソブチル、パラオキシ安息香酸イソプロピル、パラオキシ安息香酸ブチル、パラオキシ安息香酸エチル、パラオキシ安息香酸プロピル、パラオキシ安息香酸ベンジル及びパラオキシ安息香酸メチルなどが挙げられる。
本発明の乳化型外用組成物に保湿作用を付与するために、多価アルコールを配合してもよい。その具体例としては、グリセリン、ジグリセリン、トリグリセリン、プロピレングリコール、ジプロピレングリコール、1,3-ブタンジオール、エチレングリコール、ジエチレングリコール、イソプレングリコール、1、3-ブチレングリコール、ソルビトール、キシリトール、エリスリトール、マンニトール、ペンタンジオール、ヘキサンジオール、オクタンジオール、デカンジオール及びネオペンチルグリコールなどが挙げられる。
本発明の乳化型外用組成物に粉体を配合することにより、特に前記組成物をパック美容料用途に使用した場合の、その肌への密着感が向上する。前記粉体としては、無機粉体、有機粉体及び色素等の化粧品原料として一般に用いられるものを配合することができ、その具体例としては、酸化チタン、酸化亜鉛、炭酸カルシウム、ケイ酸アルミニウム、ケイ酸バリウム、シリカ、硫酸バリウム、リン酸カルシウム、炭酸カルシウム、窒化ホウ素、酸化鉄、ナイロン、ポリエチレン末、ポリスチレン末、ポリメタクリル酸アルキル粉末、セルロース末、ウレタン末及びトリメチルシルセスキオキサン粉末などが挙げられる。さらにこれらの粉体に疎水化等の表面処理をしたものも使用可能である。
本発明の乳化型外用組成物は、pHを調整して粘土鉱物(B)のゲル化の状態等を調節して組成物の粘度をコントロールしかつその使用感を高めるため、pH調整剤を含んでいてもよい。その具体例としては、無機酸(塩酸、硫酸など)、無機塩基(水酸化カリウム、水酸化ナトリウムなど)及び有機塩基(トリエタノールアミン、ジイソプロパノールアミン、トリイソプロパノールアミンなど)などが挙げられる。
本発明の乳化型外用組成物は、上記で説明した各種成分を公知の方法に従って混合・乳化することにより調製することができる。その調製方法の一例を挙げれば以下の通りである。水相と油相は別々に調製し、それぞれ70℃以上に加温する。その後、70℃以上の温度条件下にて両相を混合撹拌させ、必要に応じてホモミキサーなどの機械的撹拌力を加えて本発明の乳化型外用組成物を調製する。
(粘度)
本発明の乳化型外用組成物は粘土鉱物(B)といった、粘度を上昇させる成分を多く含んでおり、パック美容料などの用途に好適な比較的高い粘度を有している。具体的には本発明の乳化型外用組成物の粘度は10000mPa・s以上である。粘度が10000mPa・s未満では、皮膚に適用した際に組成物が皮膚から容易に流れ落ちてしまい、粘土鉱物(B)の油脂成分・タンパク質吸着効果が十分に発揮されない。なお、本明細書において粘度とは、TV10型粘度計を用いて、H7ローターで25℃、回転速度20rpmにて回転させて30秒経過後に測定した場合の粘度を指す。
本発明の乳化型外用組成物のpHは、水溶性有機酸(A)がピーリング効果を発揮し得る範囲であれば特に制限されないが、通常1~7程度の範囲にあり、好ましくは3~6程度の範囲にある。
本発明の乳化型外用組成物はピーリング効果に優れた水溶性有機酸(A)と、油脂成分・タンパク質吸着効果に優れた粘土鉱物(B)とを含有しており、かつ10000mPa・s以上という比較的高い粘度を有している。
下記表1~4に示された組成に従い、実施例及び比較例の試験製剤を常法により調製した。具体的には、水溶性成分を精製水に溶解させた水相を調製後、粘度鉱物及び油溶性成分を水相中に分散させた。さらに実施例群では、水相及び油相(粘土鉱物及び油溶性成分)を70℃~80℃に加温した状態で混合し、ホモミキサーで乳化することにより乳化された組成物を調製した。
上記[試験例]におけるのと同様な方法で、下記表5に示す組成の本発明の乳化型外用組成物を調製した(実施例8~13)。なお、前記乳化型外用組成物の粘度はいずれも10000mPa・s以上であり、pHは3~7の範囲内であった。
Claims (9)
- (A)水溶性有機酸と、
(B)粘土鉱物5重量%以上と
を含み、粘度が10000mPa・s以上である乳化型外用組成物。 - 前記水溶性有機酸(A)がヒドロキシカルボン酸である、請求項1に記載の乳化型外用組成物。
- 前記粘土鉱物(B)の乳化型外用組成物における含有量が、5~50重量%である、請求項1又は2に記載の乳化型外用組成物。
- 前記水溶性有機酸(A)がα-ヒドロキシ酸である、請求項1~3のいずれかに記載の乳化型外用組成物。
- 前記水溶性有機酸(A)が、乳酸、グリコール酸、リンゴ酸、酒石酸、クエン酸、グリセリン酸、ピルビン酸、マンデル酸、グルコン酸、フィチン酸、コハク酸、マロン酸及びシュウ酸からなる群より選択される少なくとも1種である、請求項1~3のいずれかに記載の乳化型外用組成物。
- 前記粘土鉱物(B)が、シルト、マリンシルト、タナクラクレイ、スメクタイト系粘土鉱物、カオリン系粘土鉱物、アンティゴライト系粘土鉱物、パイロフィライト系粘土鉱物、雲母系粘土鉱物、バーミキュライト系粘土鉱物及び緑泥石系粘土鉱物からなる群より選ばれる少なくとも1種である、請求項1~5のいずれかに記載の乳化型外用組成物。
- 前記粘土鉱物(B)が、シルト、マリンシルト、タナクラクレイ、ベントナイト、モンモリロナイト、ヘクトライト及びカオリンからなる群より選択される少なくとも1種である、請求項1~6のいずれかに記載の乳化型外用組成物。
- 前記乳化型外用組成物における油相成分として、炭化水素油、エステル油、高級アルコール及び高級脂肪酸からなる群より選択される少なくとも1種を含む、請求項1~7のいずれかに記載の乳化型外用組成物。
- 請求項1~8のいずれかに記載の乳化型外用組成物を含む美容料。
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- 2014-03-26 CN CN201480019101.1A patent/CN105120832B/zh active Active
- 2014-03-26 JP JP2015508568A patent/JP6494506B2/ja active Active
- 2014-03-28 TW TW103111742A patent/TW201532617A/zh unknown
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2016
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JP2016141663A (ja) * | 2015-02-04 | 2016-08-08 | 株式会社サンシャインコーポレーション | 美容パック材 |
JP2017066035A (ja) * | 2015-09-28 | 2017-04-06 | 小林製薬株式会社 | 乳化組成物 |
WO2017057417A1 (ja) * | 2015-09-28 | 2017-04-06 | 小林製薬株式会社 | 乳化組成物 |
JP2017160170A (ja) * | 2016-03-11 | 2017-09-14 | 小林製薬株式会社 | 外用組成物 |
JP2020058482A (ja) * | 2018-10-05 | 2020-04-16 | 株式会社ベネフィット−イオン | 消臭剤組成物 |
JP7174974B2 (ja) | 2018-10-05 | 2022-11-18 | 株式会社ベネフィット-イオン | 消臭剤組成物 |
Also Published As
Publication number | Publication date |
---|---|
JPWO2014157265A1 (ja) | 2017-02-16 |
TW201532617A (zh) | 2015-09-01 |
CN105120832B (zh) | 2019-03-15 |
KR20150135461A (ko) | 2015-12-02 |
CN105120832A (zh) | 2015-12-02 |
JP6494506B2 (ja) | 2019-04-03 |
HK1212228A1 (en) | 2016-06-10 |
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