WO2020066471A1 - 化粧料 - Google Patents
化粧料 Download PDFInfo
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- WO2020066471A1 WO2020066471A1 PCT/JP2019/034344 JP2019034344W WO2020066471A1 WO 2020066471 A1 WO2020066471 A1 WO 2020066471A1 JP 2019034344 W JP2019034344 W JP 2019034344W WO 2020066471 A1 WO2020066471 A1 WO 2020066471A1
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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
- A61K8/20—Halogens; 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
- A61K8/34—Alcohols
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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
- A61K8/34—Alcohols
- A61K8/345—Alcohols containing more than one hydroxy group
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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
- A61K8/39—Derivatives containing from 2 to 10 oxyalkylene groups
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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
- A61K8/40—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing nitrogen
- A61K8/44—Aminocarboxylic acids or derivatives thereof, e.g. aminocarboxylic acids containing sulfur; Salts; Esters or N-acylated derivatives 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
- A61K8/72—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds
- A61K8/73—Polysaccharides
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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
- A61K8/72—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds
- A61K8/84—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds obtained by reactions otherwise than those involving only carbon-carbon unsaturated bonds
- A61K8/86—Polyethers
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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
- A61K8/72—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds
- A61K8/84—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds obtained by reactions otherwise than those involving only carbon-carbon unsaturated bonds
- A61K8/89—Polysiloxanes
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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
- A61K8/92—Oils, fats or waxes; Derivatives thereof, e.g. hydrogenation products thereof
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P1/00—Drugs for disorders of the alimentary tract or the digestive system
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
- A61Q1/00—Make-up preparations; Body powders; Preparations for removing make-up
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
- A61Q1/00—Make-up preparations; Body powders; Preparations for removing make-up
- A61Q1/14—Preparations for removing make-up
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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
Definitions
- the present invention relates to cosmetics. More specifically, the present invention relates to a three-layer cosmetic in which two water layers and an oil layer are stably present.
- multi-layer (multi-layer) cosmetics whose appearance is separated into two or three layers are known.
- a two-layer cosmetic separated into an oil layer and an aqueous layer see Patent Document 1
- a two-layer cosmetic with an oil layer and an oil layer see Patent Document 2
- the three-layer cosmetic include three-layer cosmetics of an oil layer, a surfactant layer, and an aqueous layer (see Patent Documents 3 and 4), and three layers of an oil layer, a surfactant layer, and a polyhydric alcohol layer.
- JP 2013-139411 A JP 2004-115485 A JP 2005-206557 A JP 2008-290960 A JP-A-4-290810
- an object of the present invention is to provide a cosmetic that has two water layers and an oil layer stably and has excellent aesthetics.
- the present inventors have conducted intensive studies to achieve the above object, and as a result, a cosmetic containing a specific dextran, a specific polyethylene glycol, and an electrolyte in a specific ratio, respectively, and further containing an ionic surfactant, water, and an oily component. According to the preparation, it was found that a cosmetic having excellent aesthetic properties was obtained by stably presenting two aqueous layers and an oil layer.
- the present invention has been completed based on these findings.
- the present invention contains the following component (A), the following component (B), the following component (C), the following component (D), the following component (E), and the following component (F). ),
- the content of the component (A) is 2.0 to 10.0% by mass
- the content of the component (B) is 2.0 to 10.0% by mass
- the cosmetic preferably further contains the following component (G).
- the cosmetic does not substantially contain a nonionic surfactant.
- the cosmetic of the present invention a cosmetic excellent in aesthetics with two water layers and an oil layer stably present can be obtained.
- the cosmetic of the present invention can be a cosmetic excellent in aesthetics and excellent in feeling in use. In particular, stickiness when applied to the skin can be suppressed.
- the cosmetic of the present invention contains at least dextran having a number average molecular weight of 50,000 to 300,000, polyethylene glycol having a number average molecular weight of 4000 to 30,000, an electrolyte, an ionic surfactant, water, and an oily component.
- dextran having a number average molecular weight of 50,000 to 300,000 is referred to as “component (A)”
- polyethylene glycol having a number average molecular weight of 4,000 to 30,000 is referred to as “component (B)”
- the electrolyte is referred to as “component (A)”.
- the ionic surfactant may be referred to as “component (D)”
- water may be referred to as “component (E)”
- oily component may be referred to as “component (F)”.
- the cosmetic of the present invention preferably further contains one or more polyhydric alcohols selected from the group consisting of polyoxyalkylene alkyl glucosides, propylene glycol, dipropylene glycol, and polyethylene glycol having a number average molecular weight of 2000 or less.
- polyhydric alcohols selected from the group consisting of polyoxyalkylene alkyl glucosides, propylene glycol, dipropylene glycol, and polyethylene glycol having a number average molecular weight of 2000 or less.
- the cosmetic of the present invention contains at least the component (A), the component (B), the component (C), the component (D), the component (E), and the component (F). It is preferable that the cosmetic of the present invention further contains component (G).
- the cosmetic of the present invention may contain components other than the above components (A) to (G). Further, each component contained in the cosmetic of the present invention, for example, component (A), component (B), component (C), component (D), component (E), component (F), component (G), And each component such as other components may be used alone or in combination of two or more.
- the cosmetic of the present invention has a multilayer appearance including two aqueous layers and one oil layer (for example, a three-layer system including two aqueous layers and one oil layer) by being left in a container for a certain period of time. More specifically, as shown in FIG. 1, for example, a cosmetic X of the present invention is a three-layer cosmetic having a layer of oil layer 1 / water layer 2 / water layer 3 from the top in a container 4. It has become.
- the aqueous layer 2 is an aqueous layer containing polyethylene glycol having a number average molecular weight of 4000 to 30,000
- the aqueous layer 3 is an aqueous layer containing dextran having a number average molecular weight of 50,000 to 300,000.
- the cosmetic of the present invention When the cosmetic of the present invention has a three-layer system of an oil layer / aqueous layer / aqueous layer, it becomes an emulsion when stirred in a container, so that it can be used as a cosmetic.
- the three-layer structure having such a structure can suppress stickiness, sliminess and irritation to the skin at the time of application.
- the three-layer cosmetic having two oil layers has a problem that an oily component is generated due to a relatively large amount of the oily component, and the cosmetic of the present invention also suppresses such a problem. can do.
- the cosmetic composition of the present invention is excellent in re-separability into three layers after use after the emulsion is formed, and the interface of each layer appears after being left for a certain period of time, and again has a three-layer appearance.
- Component (A) is dextran having a number average molecular weight of 50,000 to 300,000. As the component (A), only one type may be used, or two or more types may be used.
- the number average molecular weight of the component (A) is 50,000 to 300,000, preferably 50,000 to 220,000.
- the number average molecular weight is 50,000 or more, the excluded volume effect on the component (B) is increased, and a two-layer aqueous layer can be formed.
- the number average molecular weight is 300,000 or less, stickiness when the cosmetic is applied to the skin can be suppressed, and the usability as a cosmetic is excellent.
- the number average molecular weight can be measured, for example, by gel permeation chromatography (GPC).
- a commercially available product can be used as the component (A).
- Examples of commercially available products of the component (A) include trade name “Polymer Dextran EH” and trade name “Dextran 70” (all manufactured by Meito Sangyo Co., Ltd.).
- the content of the component (A) in the cosmetic of the present invention is based on 100% by mass of the total amount of the cosmetic of the present invention excluding the component (F) (that is, the total amount of each component other than the component (F)). It is 2.0 to 10.0% by mass, preferably 2.5 to 8.0% by mass, and more preferably 3.0 to 5.0% by mass. When the content ratio is 2.0% by mass or more, two aqueous layers can be stably formed. When the content is 10.0% by mass or less, stickiness when the cosmetic is applied to the skin can be suppressed, and excellent usability as a cosmetic can be obtained.
- the content ratio of the component (A) is the sum of the content ratios of all the components (A) in the cosmetic of the present invention.
- Component (B) is a polyethylene glycol having a number average molecular weight of 4000 to 30,000. As the component (B), only one type may be used, or two or more types may be used.
- the number average molecular weight of the component (B) is from 4,000 to 30,000, preferably from 6,000 to 25,000, and more preferably from 10,000 to 20,000.
- the number average molecular weight is 4000 or more, the excluded volume effect on the component (A) increases, and a two-layer aqueous layer can be formed.
- the number average molecular weight is 30,000 or less, stickiness when the cosmetic is applied to the skin can be suppressed, and the usability as a cosmetic is excellent.
- a commercially available product can be used as the component (B).
- Examples of commercially available components (B) include, for example, trade name “PEG # 20000”, trade name “PEG # 11000”, trade name “PEG # 6000” (both manufactured by NOF CORPORATION), and trade name “Brownon @ PEG”. -2000S "(manufactured by Aoki Yushi Kogyo Co., Ltd.).
- the content ratio of the component (B) in the cosmetic of the present invention is 2.0 to 10.0% by mass based on 100% by mass of the total amount of the cosmetic of the present invention excluding the component (F), and is preferably. It is 2.0 to 8.0% by mass, more preferably 2.0 to 5.0% by mass. When the content ratio is 2.0% by mass or more, two aqueous layers can be stably formed. When the content is 10.0% by mass or less, stickiness when the cosmetic is applied to the skin can be suppressed, and excellent usability as a cosmetic can be obtained.
- the content ratio of the component (B) is the sum of the content ratios of all the components (B) in the cosmetic of the present invention.
- the cosmetic of the present invention contains the component (A) and the component (B) at the above-mentioned content ratios, and the water containing the component (A) is produced by the excluded volume effect of the component (A) and the component (B). It can be separated into a layer and an aqueous layer containing the component (B).
- Component (C) is an electrolyte.
- the cosmetic of the present invention by including the component (C), promotes the floating (creaming) of the oily component of the emulsion when the emulsion is formed by stirring and then allowed to stand for a certain period of time. The speed of coalescence can be adjusted and the aesthetics when returning to the multi-layer type are excellent.
- As the component (C) only one type may be used, or two or more types may be used.
- the component (C) is not particularly limited, and examples thereof include metal salts (for example, monovalent metal salts, divalent or higher polyvalent metal salts, and the like).
- the metal salt may be an inorganic salt or an organic salt. Examples of the metal salt include a sodium salt, a potassium salt, a calcium salt, a magnesium salt, a zinc salt, an ammonium salt, an aluminum salt and the like.
- component (C) examples include zinc paraphenol sulfonate, sodium chloride, potassium chloride, calcium chloride, magnesium chloride, magnesium sulfate, alum, sodium carbonate, sodium hydrogen carbonate, potassium hydrogen carbonate, ammonium chloride, phosphorus
- Examples thereof include sodium acid, disodium hydrogen phosphate, sodium dihydrogen phosphate, sodium citrate (trisodium citrate), disodium edetate, and potassium aluminum sulfate.
- benzalkonium chloride and chlorohydroxyaluminum can be mentioned.
- the content ratio of the component (C) in the cosmetic of the present invention is 0.05 to 1.4% by mass based on 100% by mass of the total amount of the cosmetic of the present invention excluding the component (F), and is preferably.
- the content is 0.1 to 1.0% by mass, more preferably 0.2 to 0.8% by mass.
- the content ratio is 0.05% by mass or more, it is possible to shorten the time until each layer is separated after the cosmetic is emulsified.
- creaming can be promoted, the balance between the coalescing speed of the emulsion and the creaming speed becomes moderate, and coalescence occurs after moderate creaming, so that the oily components generated by coalescence adhere to the container wall surface. And it is excellent in aesthetics when returning to the multi-layer type.
- the content ratio of the component (C) is the sum of the content ratios of all the components (C) in the cosmetic of the present invention.
- Component (D) is an ionic surfactant.
- the component (D) includes an anionic surfactant, a cationic surfactant, and an amphoteric surfactant.
- Component (D) can promote coalescence of the emulsion.
- the component (D) is presumed to be oriented at the oil-water interface and weaken the film strength at the interface, so that the coalescing speed of the emulsion can be improved.
- the component (D) only one type may be used, or two or more types may be used.
- anionic surfactant examples include higher fatty acid soaps, alkyl sulfates, alkyl phosphates, polyoxyethylene alkyl ether sulfates, polyoxyethylene alkyl phenyl ether sulfates, alkyl ether phosphates, and alkyl ether carboxylates.
- Acid salt acyl methyl taurine salt, N-acyl-N-methyl- ⁇ -alanine salt, N-acyl glycine salt, N-acyl glutamate, polyoxyethylene alkyl carboxylate, alkyl phenyl ether sulfonate, alkyl sulfosuccinate
- acids and salts thereof N-acyl sarcosine and salts thereof, and polyoxyethylene coconut oil fatty acid monoethanolamide sulfate.
- cationic surfactant examples include amino acid-based cationic surfactants, amine salts such as alkylamine salts, fatty acid amidoamine salts, ester-containing tertiary amine salts, monoalkyl-type quaternary ammonium salts, and dialkyl-type quaternary ammonium salts.
- Cyclic quaternary ammonium salts such as alkyl quaternary ammonium salts such as quaternary ammonium salts, trialkyl type quaternary ammonium salts and benzalkonium type quaternary ammonium salts, and alkylpyridinium salts; and benzethonium chloride.
- a cationic surfactant having a relatively bulky structure is preferable, and for example, benzalkonium chloride, N-coconut fatty acid acyl-L-arginine ethyl / DL-pyrrolidone carboxylate and the like are preferable.
- amphoteric surfactant examples include glycine-type amphoteric surfactants such as alkyl glycine salts, carboxymethyl glycine salts, N-acylaminoethyl-N-2-hydroxyethyl glycine salts, alkylaminopropionates, and alkyliminodipropionic acids.
- glycine-type amphoteric surfactants such as alkyl glycine salts, carboxymethyl glycine salts, N-acylaminoethyl-N-2-hydroxyethyl glycine salts, alkylaminopropionates, and alkyliminodipropionic acids.
- Aminopropionic acid type amphoteric surfactants such as salts, aminoacetic acid betaine type amphoteric surfactants such as betaine alkyldimethylaminoacetate and fatty acid amidopropyldimethylaminoacetate, and sulfobetaine type amphoteric surfactants such as alkylhydroxysulfobetaine Is mentioned.
- the component (D) is preferably benzalkonium chloride and / or N-coconut fatty acid acyl-L-arginine ethyl / DL-pyrrolidonecarboxylate, particularly preferably N-coconut fatty acid acyl-L-arginineethyl. DL-pyrrolidone carboxylate.
- the content ratio of the component (D) in the cosmetic of the present invention is not particularly limited, but is 0.005 to 0.1% by mass based on 100% by mass of the total amount of the cosmetic of the present invention excluding the component (F). Is more preferable, more preferably 0.008 to 0.05% by mass, and still more preferably 0.01 to 0.05% by mass. When the content is 0.005% by mass or more, coalescence of the emulsion can be further promoted, and the time until each layer is separated after the cosmetic is emulsified by stirring can be shortened. .
- the content ratio of the component (D) is the sum of the content ratios of all the components (D) in the cosmetic of the present invention.
- Component (E) is water, and is not particularly limited, but purified water is preferable.
- Component (E) is a component that serves as a medium for the two aqueous layers in the cosmetic of the present invention.
- the content ratio of the component (E) in the cosmetic of the present invention is preferably 60.0 to 95.0% by mass based on 100% by mass of the total amount of the cosmetic of the present invention excluding the component (F). , More preferably 70.0 to 90.0% by mass.
- Component (F) is an oily component.
- component (F) for example, vegetable oil, ester oil, silicone oil, hydrocarbon oil, wax, higher alcohol and the like can be mentioned.
- Component (F) forms an oily layer in the cosmetic of the present invention.
- the component (F) only one type may be used, or two or more types may be used.
- Examples of the vegetable oil include macadamia nut oil, eucalyptus oil, coconut oil, avocado oil, safflower oil, olive oil, palm oil, palm kernel oil, kukui nut oil, shea butter (shea butter), cocoa butter, almond oil, and sunflower oil.
- Rose hip oil olive squalane, camelia oil, kiwi fruit seed oil, camellia oil, apricot kernel oil, sesame oil, soybean oil, jojoba oil, castor oil, hazelnut oil, meadowfoam oil, peppermint oil, argan oil, carrot oil, lavender Oil, sugar squalane, damask rose flower wax, centifolia rose flower wax, scotch flower wax, camellia oil, hydrogenated products thereof (for example, hydrogenated castor oil, hydrogenated jojoba oil, hydrogenated palm oil, hydrogenated avocado oil, Hydrogenated soybean oil and the like).
- ester oil examples include ethyl oleate, isopropyl myristate, isopropyl palmitate, myristyl myristate, cetyl palmitate, 2-ethylhexyl palmitate, octyl dodecyl myristate, isopropyl isostearate, propylene glycol isostearate, and propylene glycol isostearate.
- silicone oil examples include, but are not particularly limited to, dimethyl silicone oil such as methylpolysiloxane and highly polymerized methylpolysiloxane; methylphenyl silicone oil such as methylphenylpolysiloxane; methylcyclopolysiloxane, octamethylcyclotetrasiloxane; Cyclic silicone oils such as decamethylcyclopentasiloxane and dodecamethylcyclohexasiloxane; aminopropylmethylsiloxane / dimethylsiloxane copolymer, aminoethylaminopropylsiloxane / dimethylsiloxane copolymer, aminoethylaminopropylmethylsiloxane / dimethylsiloxane Amino-modified silicone, carboxy-modified silicone, fatty acid-modified silicone, alcohol-modified silicone, aliphatic alcohol-modified silicone such as polymers Emissions, epoxy-
- hydrocarbon oil examples include ⁇ -olefin oligomer, petrolatum, isoparaffin, light isoparaffin, light liquid isoparaffin, squalane, synthetic squalane, vegetable squalane, liquid isoparaffin, liquid paraffin, hydrogenated polyisobutene, hydrogenated (tetradecenyl / Methylpentadecene), isododecane and the like.
- wax examples include carnauba wax, candelilla wax, beeswax, rice bran wax, shellac wax, whale wax, lanolin, sunflower seed wax and the like.
- Examples of the higher alcohol include cetyl alcohol, stearyl alcohol, isostearyl alcohol, myristyl alcohol, 2-octyldodecanol, oleyl alcohol and the like.
- the content ratio of the component (F) in the cosmetic of the present invention is not particularly limited, but is preferably 5.0% by mass or more, more preferably 7.0% by mass, based on 100% by mass of the total amount of the cosmetic of the present invention. % By mass or more. When the content is 5.0% by mass or more, the formation of an oil layer can be sufficiently confirmed visually.
- the content is preferably 60.0% by mass or less, more preferably 50.0% by mass or less. When the content is 60.0% by mass or less, an oily film-based oily feeling and stickiness can be suppressed, and the feeling of use as a cosmetic is excellent.
- the content ratio of the component (F) is the sum of the content ratios of all the components (F) in the cosmetic of the present invention.
- Component (G) is one or more polyhydric alcohols selected from the group consisting of polyoxyalkylene alkyl glucosides, propylene glycol, dipropylene glycol, and polyethylene glycol having a number average molecular weight of 2000 or less.
- the cosmetic of the present invention contains the component (G)
- the separation speed of the two aqueous layers is improved.
- the component (G) only one type may be used, or two or more types may be used.
- the number average molecular weight of polyethylene glycol which can be used as the component (G) is 2,000 or less, preferably 200 to 1800, more preferably 400 to 1600.
- polyoxyalkylene alkyl glucoside for example, those obtained by adding a polyoxyalkylene (eg, ethylene oxide, propylene oxide, etc.) to an alkyl glucoside can be used.
- the average number of moles of the polyoxyalkylene added is preferably about 1 to 20 mol.
- the alkyl group in the polyoxyalkylene alkyl glucoside is preferably an alkyl group having 1 to 4 carbon atoms, such as a methyl group, an ethyl group, a propyl group, and an isopropyl group.
- polyoxyalkylene alkyl glucoside polyoxyalkylene methyl glucoside is particularly preferable.
- polyoxyethylene methyl glucoside and polyoxypropylene methyl glucoside are preferable, and specifically, polyoxyethylene (10) methyl glucoside, polyoxyethylene (20) methyl glucoside, polyoxypropylene ( 10) Methyl glucoside, polyoxypropylene (20) methyl glucoside and the like.
- the content ratio of the component (G) in the cosmetic of the present invention is preferably 1.0 to 30.0% by mass, more preferably 100% by mass of the total amount of the cosmetic of the present invention excluding the component (F). Is 2.0 to 20.0% by mass, more preferably 4.0 to 15.0% by mass. When the content is 1.0% by mass or more, the separation speed of the two aqueous layers can be further improved. When the content is 30.0% by mass or less, stickiness can be suppressed.
- the content ratio of the component (G) is the sum of the content ratios of all the components (G) in the cosmetic of the present invention.
- the cosmetic of the present invention does not substantially contain a nonionic surfactant.
- that it does not contain substantially means that it is not positively compounded, for example, excludes the case where it is inevitably present.
- the content of the nonionic surfactant in the cosmetic of the present invention is preferably 0.05% by mass or less based on 100% by mass of the total amount of the cosmetic of the present invention excluding the component (F). , More preferably 0.01% by mass or less, further preferably 0.005% by mass or less. This is because the nonionic surfactant exerts an effect of inhibiting the coalescence and creaming of the emulsion when the cosmetic returns from the emulsion state to the multi-layer type.
- the content ratio of the nonionic surfactant is the sum of the content ratios of all the nonionic surfactants in the cosmetic of the present invention.
- nonionic surfactant examples include, for example, sorbitan fatty acid esters, glycerin fatty acid esters, and alkylene oxide adducts thereof, polyoxyalkylene alkyl ethers, polyoxyalkylene fatty acid esters, polyoxyalkylene alkyl phenols, polyoxyethylene sorbite fatty acid esters , Polyoxyethylene alkylphenyl formaldehyde condensate, polyoxyethylene sterol and its derivatives, polyoxyethylene lanolin and its derivatives, polyoxyethylene beeswax derivatives, sugar esters, polyoxyethylene hydrogenated castor oil, polyoxyethylene castor oil, etc. No.
- the cosmetic of the present invention may contain components (other components) other than the above components (A) to (G) as long as the object of the present invention is not impaired.
- the other components are not particularly limited, and include, for example, components commonly used in cosmetics and quasi-drugs.
- thickeners such as carboxyvinyl polymer, acrylic acid / alkyl methacrylate copolymer, hydroxymethylcellulose, hydroxypropylmethylcellulose, xanthan gum, etc .; humectants; bactericides; pearlizing agents; Anti-inflammatory agents such as menthol; Refreshing agents such as menthol; Fragrances; UV absorbers; Antioxidants; Film-forming polymer compounds; Powder; Pigments; Pigments; Vitamins; Amino acids; Astringents; Substances; acids; alkalis and the like.
- the use of the cosmetic of the present invention is not particularly limited, and may be used for skin (skin) (for example, for face, neck, scalp, shoulder, body, arm, elbow, palm, back of hand, thigh, calf, knee, ankle, foot) Instep, sole of foot, etc.) and hair.
- skin for example, for face, neck, scalp, shoulder, body, arm, elbow, palm, back of hand, thigh, calf, knee, ankle, foot
- the cosmetic of the present invention can be used as a cleansing cosmetic by containing the component (F), it is preferably a skin cosmetic.
- the cosmetic of the present invention can be used as a hair oil by containing the component (F), and thus may be a cosmetic for hair.
- the cosmetic of the present invention is not particularly limited, and can be produced by a known or commonly used method. For example, it can be manufactured by mixing the above components and stirring with a homomixer, paddle mixer or the like.
- the cosmetic of the present invention is a cosmetic containing water [component (E)] as a medium, and a dextran [component (A)] having a number average molecular weight of 50,000 to 300,000 and a polyethylene having a number average molecular weight of 4000 to 30,000.
- a dextran [component (A)] having a number average molecular weight of 50,000 to 300,000 and a polyethylene having a number average molecular weight of 4000 to 30,000.
- an oily layer is formed by blending the oily component [component (F)], whereby a multi-layer cosmetic having two aqueous layers and an oily layer can be obtained.
- the cosmetic of the present invention when using the cosmetic, is stirred to form an emulsion, and after use, the oil layer and the two aqueous layers are separated to form a multi-layered form again.
- the creaming of the emulsion is promoted by blending the electrolyte [component (C)] in a specific ratio, and the unification of the emulsion is blended by blending the ionic surfactant [component (D)]. Promote and balance creaming speed and coalescing speed.
- creaming is more likely to occur preferentially than coalescence, and adhesion of coalesced oily components to the container wall surface can be suppressed, and in this case, it is also excellent in aesthetics Things.
- the compounding amount described in the table is the compounding amount of each component (that is, the compounding amount of the active ingredient in each raw material; so-called pure content), and is represented by "% by mass” unless otherwise specified.
- Separation speed 100 ml of each cosmetic obtained in Examples and Comparative Examples was filled in a polyethylene terephthalate bottle container (capacity: 150 ml), and after sufficient shaking, separation of layers from immediately after to 10 minutes later. The behavior was visually observed, and the speed of layer separation was determined based on the following criteria. [Judgment criteria for separation speed] ((Good): The speed of separation into three layers of an oil layer, an aqueous layer, and an aqueous layer is practically appropriate. X (poor): The speed of separation into three layers is too high, and separation occurs before applying the cosmetic. Or, the speed of separation into three layers is slow, and the aesthetics are poor.
- the separation rate of the cosmetics (Examples) of the present invention is practically appropriate. After the separation, it can be visually confirmed that the separation is performed into three layers, an oil layer, an aqueous layer, and an aqueous layer. No obvious stain due to adhesion was observed, and the aesthetics were excellent. In addition, the usability was excellent.
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Abstract
Description
成分(A):数平均分子量が5万~30万のデキストラン
成分(B):数平均分子量が4000~3万のポリエチレングリコール
成分(C):電解質
成分(D):イオン性界面活性剤
成分(E):水
成分(F):油性成分
成分(G):ポリオキシアルキレンアルキルグルコシド、プロピレングリコール、ジプロピレングリコール、及び数平均分子量が2000以下のポリエチレングリコールからなる群より選択される1以上の多価アルコール
成分(A)は、数平均分子量が5万~30万のデキストランである。成分(A)は、一種のみを用いてもよいし、二種以上を用いてもよい。
成分(B)は、数平均分子量が4000~3万のポリエチレングリコールである。成分(B)は、一種のみを用いてもよいし、二種以上を用いてもよい。
成分(C)は、電解質である。本発明の化粧料は、成分(C)を含むことにより、撹拌によりエマルションが形成された後、一定時間静置した際の、エマルションの油性成分の浮上(クリーミング)を促進し、クリーミングとエマルションの合一化の速度を調節することができ、多層式に戻る際の審美性に優れる。成分(C)は、一種のみを用いてもよいし、二種以上を用いてもよい。
成分(D)は、イオン性界面活性剤である。成分(D)としては、アニオン性界面活性剤、カチオン性界面活性剤、両性界面活性剤が挙げられる。成分(D)は、エマルションの合一化を促進することができる。本発明の化粧料は、成分(D)は油水界面に配向して、界面の膜強度を弱くすると推測され、エマルションの合一化速度を向上させることができる。成分(D)は、一種のみを用いてもよいし、二種以上を用いてもよい。
成分(E)は水であり、特に限定されないが、精製水が好ましい。成分(E)は、本発明の化粧料における2つの水層の媒体となる成分である。本発明の化粧料中の成分(E)の含有割合は、成分(F)を除く本発明の化粧料の総量100質量%に対して、60.0~95.0質量%であることが好ましく、より好ましくは70.0~90.0質量%である。
成分(F)は油性成分である。成分(F)としては、例えば、植物油、エステル油、シリコーン油、炭化水素油、ロウ、高級アルコールなどが挙げられる。成分(F)は本発明の化粧料において油層を形成する。成分(F)は、一種のみを用いてもよいし、二種以上を用いてもよい。
成分(G)は、ポリオキシアルキレンアルキルグルコシド、プロピレングリコール、ジプロピレングリコール、及び数平均分子量が2000以下のポリエチレングリコールからなる群より選択される1以上の多価アルコールである。成分(G)を含む場合、本発明の化粧料は、二層の水層の分離速度が向上する。成分(G)は、一種のみを用いてもよいし、二種以上を用いてもよい。
本発明の化粧料は、本発明の目的を阻害しない範囲内で、上記成分(A)~(G)以外の成分(その他の成分)を含んでいてもよい。上記その他の成分しては、特に限定されず、例えば、化粧品や医薬部外品に通常用いられる成分などが挙げられる。具体的には、例えば、カルボキシビニルポリマー、アクリル酸・メタクリル酸アルキル共重合体、ヒドロキシメチルセルロース、ヒドロキシプロピルメチルセルロース、キサンタンガム等の増粘剤;保湿剤;殺菌剤;パール化剤;グリチルリチン酸及びその塩等の抗炎症剤;メントール等の清涼剤;香料;紫外線吸収剤;酸化防止剤;皮膜形成性高分子化合物;粉体;色素;顔料;ビタミン類;アミノ酸類;収斂剤;美白剤;動植物抽出物;酸;アルカリなどが挙げられる。
表に記した各成分を用い、実施例及び比較例の各化粧料を常法により調製した。
デキストラン70:商品名「デキストラン70」、名糖産業株式会社製、数平均分子量54000~85000
高分子デキストランEH:商品名「高分子デキストランEH」、名糖産業株式会社製、数平均分子量178000~217000
<成分(B)>
PEG4000:商品名「PEG#4000」、日油株式会社製、数平均分子量4000
PEG6000:商品名「PEG#6000」、日油株式会社製、数平均分子量6000
PEG10000:商品名「ブラウノン PEG-10000」、青木油脂工業株式会社製、数平均分子量10000
PEG20000:商品名「ブラウノン PEG-20000S」、青木油脂工業株式会社製、数平均分子量20000
<成分(C)>
塩化ナトリウム:商品名「ナクルM」、ナイカイ塩業株式会社製
<成分(D)>
N-ヤシ油脂肪酸アシル-L-アルギニンエチル・DL-ピロリドンカルボン酸塩:商品名「CAE」、味の素株式会社製
<成分(F)>
ジメチコン:商品名「XIAMETER PMX-200 SILICONE FLUID 1.5CS」、東レ・ダウコーニング株式会社製、メチルポリシロキサン
軽質イソパラフィン:商品名「マルカゾールR」、丸善石油化学株式会社製
ひまわり油:商品名「ハイオレイックひまわり油」、OLEOMONTERREAL S.L.社製、ひまわり種子油
流動パラフィン:商品名「CARNATION」、Sonneborn Inc.社製
流動イソパラフィン:商品名「パールリームEX」、日油株式会社製
<成分(G)>
ポリオキシプロピレンメチルグルコシド:商品名「マクビオブライドMG-10P」、日油株式会社製
<その他の成分>
デキストラン40:商品名「デキストラン40」、名糖産業株式会社製、数平均分子量31000~45000
実施例及び比較例で得られた各化粧料について以下の通り評価した。評価結果は表に記載した。
実施例及び比較例で得られた各化粧料100mlを、ポリエチレンテレフタレート製ボトル容器(容量150ml)に充填し、充分に振とうした後、直後から10分後までの層の分離挙動を目視にて観察し、層分離のはやさを以下の基準で判定した。
[分離速度の判定基準]
○(良好):油層、水層、水層の三層に分かれる速さが、実用上適切である。
×(不良):三層に分かれる速さが速すぎて、化粧料を塗布する前に分離が起こる。又は、三層に分かれる速さがおそく、審美性に劣る。
(1)の評価の後、3時間後に目視にて観察し、外観を以下の基準で判定した。
[外観の判定基準]
○(良好):油層、水層、水層の三層に分かれている。かつ、壁面に油滴の付着による明らかな汚れが見られない。
×(不良):三層に分かれていない。及び/又は、壁面に油滴が明らかに付着しており、汚れが見られる。
実施例及び比較例で得られた各化粧料を、充分に振とうした後、上腕内側部に塗布し、塗布直後のべたつきを以下の基準で判定した。
[使用感(べたつき)の判定基準]
○(良好):べたつきが少ない、又は、べたつきがなく、実用上問題ない使用感である。
×(不良):明らかにべたつきが感じられ、実用上不快である。
1 油層
2 水層
3 水層
4 容器
Claims (3)
- 下記成分(A)、下記成分(B)、下記成分(C)、下記成分(D)、下記成分(E)、及び下記成分(F)を含有し、前記成分(F)を除く化粧料の総量に対する、前記成分(A)の含有割合が2.0~10.0質量%、前記成分(B)の含有割合が2.0~10.0質量%、下記成分(C)の含有割合が0.05~1.4質量%である化粧料。
成分(A):数平均分子量が5万~30万のデキストラン
成分(B):数平均分子量が4000~3万のポリエチレングリコール
成分(C):電解質
成分(D):イオン性界面活性剤
成分(E):水
成分(F):油性成分 - 下記成分(G)をさらに含有する請求項1に記載の化粧料。
成分(G):ポリオキシアルキレンアルキルグルコシド、プロピレングリコール、ジプロピレングリコール、及び数平均分子量が2000以下のポリエチレングリコールからなる群より選択される1以上の多価アルコール - ノニオン性界面活性剤を実質的に含有しない請求項1又は2に記載の化粧料。
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