JP7351662B2 - Cloudy liquid cosmetics - Google Patents

Description

The present invention relates to a liquid cosmetic having a cloudy appearance.

In recent years, in the field of liquid cosmetics, there has been a strong preference for a cloudy appearance. This is thought to be because cloudy liquid cosmetics have a stronger image of being more effective at moisturizing and moisturizing the skin than transparent liquid cosmetics.

Cloudy cosmetics (particularly cloudy lotions) are generally produced by finely emulsifying oil using a surface chemical method or a mechanical method. However, in this manufacturing process, it is difficult to adjust the balance between surfactant and oil, and it is not easy to obtain a cloudy lotion with excellent stability over time. In particular, when a high amount of oil is added in the hope that the product will have an excellent effect of imparting moisture and moistness to the skin, there is a problem in that it causes stickiness and a decrease in stability over time.
Therefore, attempts have been made to produce cloudy cosmetics (particularly cloudy lotions) that contain sufficient oil content, are not sticky, and have excellent stability over time by adjusting the types and blending ratios of oil and surfactants. It is being done.

For example, in Patent Document 1, 34% by mass or more of the total oil content is isostearic acid, and polyoxyethylene (30) phytosterol, polyoxyethylene octyl dodecyl ether, polyoxyethylene polyoxypropylene decyl tetradecyl ether, and polyoxy The combination of a hydrophilic surfactant selected from ethylene hydrogenated castor oil and a lipophilic surfactant selected from sorbitan sesquiisostearate and polyoxyethylene methyl polysiloxane copolymer provides a refreshing feel when used and aging. We manufacture a cloudy liquid lotion with excellent stability.
Further, in Patent Document 2, 60% by mass or more of the total oil content is isostearyl alcohol, and further contains a hydrophilic surfactant selected from polyoxyethylene hydrogenated castor oil and polyoxyethylene phytosterol, polyglyceryl diisostearate, and sesquiisostearin. By combining a lipophilic surfactant selected from sorbitan acid and sorbitan sesquioleate, we produce a cloudy liquid lotion that is non-sticky and has excellent stability over time.

However, these cosmetics have not been evaluated for their effectiveness in imparting moisture and moistness to the skin, and their stability has not been evaluated sufficiently.

For these reasons, there has been a strong desire for a cloudy liquid cosmetic (particularly a cloudy lotion) that is non-sticky, has an excellent effect of imparting moisture and moisture to the skin, and has excellent stability over time.

Japanese Patent Application Publication No. 2005-255667 JP2013-60398A

The present invention has been made in view of the problems of the prior art, and aims to provide a cloudy liquid cosmetic that is not sticky, has an excellent effect of imparting moisture and moisturization to the skin, and has excellent stability over time. Take it as a challenge.

As a result of extensive research by the present inventors in order to solve the above problems, (a) polyoxyethylene hydrogenated castor oil having an HLB of 7 to 16, (b) sorbitan fatty acid ester having an HLB of 2 to 7, They discovered that a cloudy liquid cosmetic with an L value of 20 or less can be produced by combining (c) an oil content other than isostearic acid of 0.2% by mass or less and (d) an ionic compound, and completed the present invention. reached.

That is, the present invention includes the following.
[1] (a) polyoxyethylene hydrogenated castor oil with an HLB of 7 to 16, (b) sorbitan fatty acid ester with an HLB of 2 to 7, (c) 0.2% by mass or less of oil other than isostearic acid, and (d) a cloudy liquid cosmetic containing an ionic compound and having an L value of 20 or less.
[2] The above-mentioned [, characterized in that the blending amount of component (a) is 0.05 to 0.5% by mass, and the blending amount of component (b) is 0.25 to 2.5% by mass. The cloudy liquid cosmetic according to item 1].
[3] The above [1] or [2], wherein the amount of component (d) is 1/0.001 to 1 times the sum of the amounts of components (a) and (b). The cloudy liquid cosmetic described in .
[4] Any one of [1] to [3] above, wherein component (b) is one or more compounds selected from the group consisting of sorbitan sesquioleate and sorbitan sesquiisostearate. The cloudy liquid cosmetic described above.
[5] The cloudy liquid cosmetic according to any one of [1] to [4] above, wherein component (d) is an ionic compound selected from anionic compounds and cationic compounds.
[6] Component (d) is one or more anionic compounds selected from the group consisting of dipotassium glycyrrhizinate, sodium N-acyl-L-glutamate, sodium lysine dilauroylglutamate, sodium cocoylmethyltaurate, and isostearic acid. The cloudy liquid cosmetic according to [5] above, which is characterized by the following.
[7] The above-mentioned, wherein component (d) is one or more cationic compounds selected from the group consisting of behentrimonium chloride, steartrimonium chloride, and dicocoylethylhydroxyethylmonium methosulfate. The cloudy liquid cosmetic according to [5].
[8] The cloudy liquid cosmetic according to any one of [1] to [7] above, wherein the components (a) and (b) form emulsified particles.

ADVANTAGE OF THE INVENTION The present invention provides a cloudy liquid cosmetic that is non-sticky, has an excellent effect of imparting moisture and moistness to the skin, and has excellent stability over time.

Below, preferred embodiments according to the present invention will be described.

・Component (a)
The cloudy liquid cosmetic according to the present disclosure contains polyoxyethylene hydrogenated castor oil having an HLB of 7 to 16 as component (a). The HLB is preferably 9 to 15, most preferably 11 to 14.

Commercially available products include POE (20) hydrogenated castor oil (HLB10.5, NIKKOL HCO-20), POE (30) hydrogenated castor oil (HLB11.0, NIKKOL HCO-30), and POE (40) hydrogenated castor oil (HLB12). .5, NIKKOL HCO-40), POE (50) hydrogenated castor oil (HLB13.5, NIKKOL HCO-50), POE (60) hydrogenated castor oil (HLB14.0, NIKKOL HCO-60), POE (80) hydrogenated Examples include castor oil (HLB15.0, NIKKOL HCO-80), POE (100) hydrogenated castor oil (HLB16.5, NIKKOL HCO-100) (all manufactured by Nikko Chemicals Co., Ltd.).
Among these, those having an average number of added moles of polyoxyethylene groups of 20 to 80 are particularly preferred, and POE (60) hydrogenated castor oil is most preferred.

・Component (b)
The cloudy liquid cosmetic according to the present disclosure contains a sorbitan fatty acid ester having an HLB of 2 to 7 as the component (b).

Specific examples of the compounds include sorbitan monooleate, sorbitan tristearate, sorbitan trioleate, sorbitan isostearate, sorbitan sesquiisostearate, sorbitan sesquioleate, and the like. Among these, sorbitan sesquiisostearate and sorbitan sesquioleate can be particularly preferably used.

In the cloudy liquid cosmetic according to the present disclosure, the content of component (a) is preferably 0.05 to 0.5% by mass, more preferably 0.75 to 0.3% by mass. Further, the blending amount of component (b) is preferably 0.25 to 2.5% by mass, more preferably 0.4 to 1.6% by mass. If both components (a) and (b) are below the lower limit, the degree of cloudiness will be weakened. Furthermore, if the amount of both components (a) and (b) exceeds the upper limit, the composition tends to become sticky, resulting in poor usability.

Furthermore, in the cloudy liquid cosmetic according to the present disclosure, the amount of component (d) is preferably 0.01 to 1 times the sum of the amounts of components (a) and (b), more preferably It is 0.05 to 0.5 times. If component (d) is below the lower limit, it will not have the necessary concentration to play the role of an emulsifying agent, which may cause stability problems. In addition, if component (d) exceeds the upper limit, the L value may not be able to be maintained below 20, making it difficult to control the degree of cloudiness.

In the cloudy liquid cosmetic according to the present disclosure, components (a) and (b) form emulsified particles in an aqueous phase, and this is considered to provide extremely excellent stability as a composition.

・Ingredient (c)
The cloudy liquid cosmetic according to the present disclosure contains 0.2% by mass or less of oil other than isostearic acid as component (c). The blending amount is preferably 0.15% by mass or less, more preferably 0.1% by mass or less, and most preferably 0 to 0.05% by mass. Even if component (c) is 0% by mass (that is, not added), the effects of the present invention can be obtained.
In addition, when component (c) is blended, it is considered that it is taken into the inside of the emulsified particles formed by the components (a) and (b).

As the component (c) according to the present disclosure, oils (excluding isostearic acid) commonly used in cosmetics and quasi-drugs can be used as appropriate. Examples of such oils include liquid oils, solid oils, waxes, hydrocarbon oils, higher fatty acids other than isostearic acid, synthetic ester oils, silicone oils, 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, sasanqua oil, castor oil, and linseed oil. , safflower oil, cottonseed oil, eno oil, soybean oil, peanut oil, tea seed oil, kaya oil, rice bran oil, Japanese tung oil, Japanese tung oil, jojoba oil, germ oil, triglycerin, and the like.

Examples of solid fats and oils include cacao butter, coconut oil, horse tallow, hydrogenated coconut oil, palm oil, beef tallow, mutton tallow, hydrogenated beef tallow, palm kernel oil, pork fat, beef bone fat, Japanese oak kernel oil, hydrogenated oil, and beef tallow. Examples include leg fat, Japanese oak oil, and hydrogenated castor oil.

Examples of waxes include beeswax, candelilla wax, cotton wax, carnauba wax, bayberry wax, privet wax, spermaceti wax, montan wax, bran wax, lanolin, kapok wax, lanolin acetate, liquid lanolin, sugar cane wax, isopropyl lanolin fatty acid, hexyl laurate, and reduced lanolin. , Jojoba wax, hard lanolin, shellac wax, polyoxyethylene lanolin alcohol ether, polyoxyethylene lanolin alcohol acetate, polyoxyethylene cholesterol ether, lanolin fatty acid polyethylene glycol, polyoxyethylene hydrogenated lanolin alcohol ether, cetyl palmitate, etc. .

Examples of the hydrocarbon oil include liquid paraffin, ozokerite, squalane, pristane, paraffin, ceresin, squalene, vaseline, and microcrystalline wax.

Examples of higher fatty acids include lauric acid, myristic acid, palmitic acid, stearic acid, behenic acid, oleic acid, undecylenic acid, tolic acid, linoleic acid, linoleic acid, eicosapentaenoic acid (EPA), docosahexaenoic acid (DHA), etc. can be mentioned.

Examples of the synthetic ester oil include cetyl octoate, myristyl myristate, glyceryl tri-2-ethylhexanoate, pentaerythritol tetra-2-ethylhexanoate, dioctyl succinate, tripropylene glycol dineopentanoate, and the like.

Examples of silicone oils include linear polysiloxanes (e.g., dimethylpolysiloxane, methylphenylpolysiloxane, diphenylpolysiloxane, etc.); cyclic polysiloxanes (e.g., octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, dodecamethylcyclohexane, etc.); sasiloxane, etc.), silicone resins forming three-dimensional network structures, silicone rubber, various modified polysiloxanes (amino-modified polysiloxanes, polyether-modified polysiloxanes, alkyl-modified polysiloxanes, fluorine-modified polysiloxanes, etc.), acrylic silicones etc.

・Component (d)
The cloudy liquid cosmetic according to the present disclosure contains an ionic compound as component (d). The component (d) is a component that acts from the outside (aqueous phase side) on the emulsified particles formed by the components (a) and (b) and contributes to the structural stability of the emulsified particles.

As component (d), an anionic compound or a cationic compound can be used.

Examples of the anionic compound include one or more anionic compounds selected from the group consisting of dipotassium glycyrrhizinate, sodium N-acyl-L-glutamate, sodium lysine dilauroylglutamate, sodium cocoylmethyltaurate, and isostearic acid. Can be mentioned.

Examples of the cationic compound include one or more anionic compounds selected from the group consisting of behentrimonium chloride, steartrimonium chloride, and dicocoylethylhydroxyethylmonium methosulfate.

The cloudy liquid cosmetics according to the present disclosure may contain water, water-soluble alcohol, thickeners, etc., which are commonly used in cosmetics, quasi-drugs, etc., as aqueous phase components, and may further contain water, water-soluble alcohol, thickeners, etc. as desired. Moisturizers, whitening agents, sequestering agents, water-soluble ultraviolet absorbers, powders, organic amines, vitamins, preservatives, antioxidants/antioxidant aids, pH adjusters, etc. can be blended as appropriate. .

The water contained in the oil-in-water emulsified cosmetic composition of the present invention is not particularly limited, and examples thereof include purified water, ion-exchanged water, tap water, and the like.

Examples of water-soluble alcohols include lower alcohols, polyhydric alcohols, polyhydric alcohol polymers, dihydric alcohol alkyl ethers, dihydric alcohol alkyl ethers, dihydric alcohol ether esters, glycerin monoalkyl ethers, sugar alcohols, Examples include monosaccharides, oligosaccharides, polysaccharides, and derivatives thereof.

Examples of the lower alcohol include ethanol, propanol, isopropanol, isobutyl alcohol, and t-butyl alcohol.

Examples of polyhydric alcohols include dihydric alcohols (e.g., dipropylene glycol, 1,3-butylene glycol, ethylene glycol, trimethylene glycol, 1,2-butylene glycol, tetramethylene glycol, 2,3-butylene glycol, pentamethylene glycol, 2-butene-1,4-diol, hexylene glycol, octylene glycol, etc.), trihydric alcohols (e.g., glycerin, trimethylolpropane, etc.), tetrahydric alcohols (e.g., diglycerin, 1,2 , 6-hexanetriol, pentaerythritol, etc.), pentahydric alcohols (e.g., xylitol, triglycerin, etc.), hexahydric alcohols (e.g., sorbitol, mannitol, etc.), polyhydric alcohol polymers (e.g., diethylene glycol, dipropylene glycol, etc.) routriethylene glycol, polypropylene glycol, tetraethylene glycol, diglycerin-triglycerin, tetraglycerin, polyglycerin, etc.), dihydric alcohol alkyl ethers (e.g., 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 ), dihydric alcohol alkyl ethers (e.g., 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.), dihydric alcohol ether esters (e.g., ethylene Glycol monomethyl ether acetate, ethylene glycol monoethyl ether acetate, ethylene glycol monobutyl ether acetate, ethylene glycol monophenyl ether acetate, ethylene glycol diadivate, 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 ethers (e.g., xyl alcohol, serakyl alcohol, batyl alcohol, etc.), sugar alcohols (e.g. , maltotriose, mannitol, sucrose, erythritol, glucose, fructose, starch-degrading sugar, maltose, starch-degrading sugar, reduced alcohol, etc.), glycolide, tetrahydrofurfuryl alcohol, POE-tetrahydrofuryl Furyl alcohol, POP-butyl ether, POP/POE-butyl ether tripolyoxypropylene glycerin ether, POP-glycerin ether, POP-glycerin ether phosphoric acid, POP/POE-pentane erythritol ether, polyglycerin, and the like.

Examples of monosaccharides include tricarbon sugars (e.g., D-glycerylaldehyde, dihydroxyacetone, etc.), tetracarbonses (e.g., D-erythrose, D-erythrulose, D-threose, erythritol, etc.), Pentose (e.g. L-arabinose, D-xylose, L-lyxose, D-arabinose, D-ribose, D-ribulose, D-xylulose, L- xylulose, etc.), hexoses (e.g., D-glucose, D-talose, D-busicose, D-galactose, D-fructose, L-galactose, L- mannose, D-tagatose, etc.), seven carbon sugars (e.g., aldoheptose, heprose, etc.), eight-carbon sugars (e.g., octulose, etc.), deoxy sugars (e.g., 2-deoxy-D -ribose, 6-deoxy-L-galactose, 6-deoxy-L-mannose, etc.), amino sugars (e.g., D-glucosamine, D-galactosamine, sialic acid, aminouronic acid, muramic acid, etc.) , uronic acids (eg, D-glucuronic acid, D-mannuronic acid, L-guluronic acid, D-galacturonic acid, L-iduronic acid, etc.).

Examples of the oligosaccharide include sucrose, gunthianose, umbelliferose, lactose, planteose, isoliqunose, α,α-trehalose, raffinose, lichnose, umbilicin, stachyose verbascose, and the like.

Examples of polysaccharides include cellulose, quince seed, starch, galactan, dermatan sulfate, glycogen, gum arabic, heparan sulfate-tragacanth gum, keratan sulfate, chondroitin, xanthan gum, guar gum, dextran, keratosulfate, locust bean gum, succinoglucan, etc. can be mentioned.

Examples of other polyols include polyoxyethylene methyl glucoside (glucam E-10) and polyoxypropylene methyl glucoside (glucam P-10).

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

Examples of natural water-soluble polymers include plant-based polymers (e.g., gum arabic, gum tragacanth, galactan, guar gum, carob gum, gum caraya, carrageenan, pectin, agar, quince seed (quince), algae colloid (cassava extract), starch). (rice, corn, potato, wheat), glycyrrhizic acid), microbial polymers (e.g. xanthan gum, dextran, succinoglucan, pullulan, etc.), animal polymers (e.g. collagen, casein, albumin, gelatin, etc.), etc. can be mentioned.

Examples of semi-synthetic water-soluble polymers include starch-based polymers (e.g., carboxymethyl starch, methylhydroxypropyl starch, etc.), cellulose-based polymers (methyl cellulose, ethyl cellulose, methyl hydroxypropyl cellulose, hydroxyethyl cellulose, sodium cellulose sulfate) , hydroxypropylcellulose, carboxymethylcellulose, sodium carboxymethylcellulose, crystalline cellulose, cellulose powder, etc.), alginic acid-based polymers (eg, sodium alginate, propylene glycol alginate, etc.), and the like.

Examples of synthetic water-soluble polymers include vinyl polymers (e.g., polyvinyl alcohol, polyvinyl methyl ether, polyvinyl pyrrolidone, carboxyvinyl polymer, etc.), polyoxyethylene polymers (e.g., polyethylene glycol 20,000, 40 ,000, 60,000, etc.), acrylic polymers (eg, sodium polyacrylate, polyethyl acrylate, polyacrylamide, etc.), polyethyleneimine, cationic polymers, and the like.

Examples of humectants include chondroitin sulfate, hyaluronic acid, mucoitin sulfate, caronic acid, atelocollagen, cholesteryl-12-hydroxystearate, sodium lactate, bile salts, DL-pyrrolidone carboxylate, short chain soluble collagen, Examples include diglycerin (EO) PO adduct, Izayo thorn extract, Yarrow extract, Melilot extract, and the like.

The whitening agent is not particularly limited as long as it is commonly used in cosmetics, quasi-drugs, etc., but for example, organic acid-based whitening agents can be suitably blended. The organic acid herein refers to an organic compound that has a carboxyl group and generates hydrogen ions when ionized.
Examples of organic acid whitening agents include 4-methoxysalicylic acid, L-ascorbic acid, kojic acid, tranexamic acid, and salts and derivatives thereof.

Examples of the metal ion sequestering agent include 1-hydroxyethane-1,1-diphosphonic acid, 1-hydroxyethane-1,1-diphosphonic acid tetrasodium salt, edetate disodium, edetate trisodium, and edetate tetrasodium. , sodium citrate, sodium polyphosphate, sodium metaphosphate, gluconic acid, phosphoric acid, citric acid, ascorbic acid, succinic acid, edetic acid, trisodium ethylenediamine hydroxyethyl triacetate, and the like.

Examples of water-soluble ultraviolet absorbers include 2,4-dihydroxybenzophenone, 2,2'-dihydroxy-4-methoxybenzophenone, 2,2'-dihydroxy-4,4'-dimethoxybenzophenone, 2,2',4, 4'-tetrahydroxybenzophenone, 2-hydroxy-4-methoxybenzophenone, 2-hydroxy-4-methoxy-4'-methylbenzophenone, 2-hydroxy-4-methoxybenzophenone-5-sulfonate, 4-phenylbenzophenone, Benzophenone UV absorbers such as 2-ethylhexyl-4'-phenyl-benzophenone-2-carboxylate, 2-hydroxy-4-n-octoxybenzophenone, 4-hydroxy-3-carboxybenzophenone, phenylbenzimidazole-5- Benzimidazole ultraviolet absorbers such as sulfonic acid and its salts, phenylene-bis-benzimidazole-tetrasulfonic acid and its salts, 3-(4'-methylbenzylidene)-d,l-camphor, 3-benzylidene-d, Examples include l-camphor, urocanic acid, and urocanic acid ethyl ester.

Examples of powder components include inorganic powders (such as talc, kaolin, mica, sericite, muscovite, phlogopite, synthetic mica, rhodochite, biotite, permiculite, magnesium carbonate, calcium carbonate, and silicic acid). Aluminum, barium silicate, calcium silicate, magnesium silicate, strontium silicate, metal tungstate, magnesium, silica, zeolite, barium sulfate, calcined calcium sulfate (calcined gypsum), calcium phosphate, fluoroapatite, hydroxyapatite, ceramic powder , metal soaps (e.g. zinc myristate, calcium palmitate, aluminum stearate), boron nitride, etc.), organic powders (e.g. polyamide resin powder (nylon powder), polyethylene powder, polymethyl methacrylate powder, polystyrene powder, styrene and acrylic acid copolymer resin powder, benzoguanamine resin powder, polytetrafluoroethylene powder, cellulose powder, etc.), inorganic white pigments (e.g. titanium dioxide, zinc oxide, etc.), inorganic red pigments (e.g. iron oxide ( red iron oxide), iron titanate, etc.), inorganic brown pigments (e.g., γ-iron oxide, etc.), inorganic yellow pigments (e.g., yellow iron oxide, ocher, etc.), inorganic black pigments (e.g., black iron oxide, low titanium suboxide, etc.), inorganic purple pigments (e.g., mango violet, cobalt violet, etc.), inorganic green pigments (e.g., chromium oxide, chromium hydroxide, cobalt titanate, etc.), inorganic blue pigments (e.g., ultramarine blue, Pigments (e.g., titanium oxide coated mica, titanium oxide coated bismuth oxychloride, titanium oxide coated talc, colored titanium oxide coated mica, bismuth oxychloride, fish scale foil, etc.), metal powder pigments (e.g., aluminum powder) , copper powder, etc.), organic pigments such as zirconium, barium or aluminum lake (for example, Red No. 201, Red No. 202, Red No. 204, Red No. 205, Red No. 220, Red No. 226, Red No. 228, Red Organic pigments such as No. 405, Orange No. 203, Orange No. 204, Yellow No. 205, Yellow No. 401, and Blue No. 404, Red No. 3, Red No. 104, Red No. 106, Red No. 227, Red No. 230, Red 401 (Red No. 505, Orange No. 205, Yellow No. 4, Yellow No. 5, Yellow No. 202, Yellow No. 203, Green No. 3, Blue No. 1, etc.), natural pigments (e.g. chlorophyll, β-carotene, etc.), etc. Can be mentioned.

Examples of organic amines include monoethanolamine, diethanolamine, triethanolamine, morpholine, tetrakis(2-hydroxypropyl)ethylenediamine, triisopropanolamine, 2-amino-2-methyl-1,3-propanediol, 2-amino -2-methyl-1-propanol and the like.

Examples of vitamins include vitamins A, B1, B2, B6, C, E and their derivatives, pantothenic acid and its derivatives, biotin, and the like.

Examples of the antioxidant include tocopherols, dibutylhydroxytoluene, butylhydroxyanisole, gallic acid esters, and the like.
Examples of the antioxidant aid include phosphoric acid, citric acid, ascorbic acid, maleic acid, malonic acid, succinic acid, fumaric acid, cephalin, hexametaphosphate, phytic acid, and ethylenediaminetetraacetic acid.

Examples of the pH adjuster include buffers such as lactic acid-sodium lactate, citric acid-sodium citrate, and succinic acid-sodium succinate.

Furthermore, oily components such as ultraviolet absorbers, oil-soluble drugs, fragrances, etc. can be appropriately blended into the cloudy liquid cosmetic according to the present disclosure within a range that does not impair the effects of the present invention.

Examples of UV absorbers include cinnamic acid UV absorbers such as octyl para-methoxycinnamate, isopropyl para-methoxycinnamate, glyceryl mono-2-ethylhexanoate di-paramethoxycinnamate, para-aminobenzoic acid, etc. benzoic acid-based UV absorbers, anthranilic acid-based UV absorbers such as methyl anthranilate, salicylic acid-based UV absorbers such as octyl salicylate and phenyl salicylate, 4-tert-butyl-4'-methoxybenzoylmethane, 2-ethylhexyl 2 -cyano-3,3-diphenylacrylate and the like.

Examples of oil-soluble drugs include oil-soluble vitamins such as vitamin A (retinol), vitamin D, vitamin E, vitamin K, and their derivatives (vitamin A oil, retinol palmitate, etc.), and water-soluble drugs such as vitamin C and arbutin. Examples include oil-soluble derivatives of sex drugs (vitamin C palmitate, etc.), oil-soluble plant extracts, oil-soluble fragrances, substances whose surfaces have been made hydrophobic, and cyclosporin.

As the fragrance, any of natural fragrances obtained from animals or plants, synthetic fragrances produced by chemical synthesis means, and mixed fragrances that are mixtures thereof can be used.

The cloudy liquid composition according to the present disclosure is an aqueous or oil-in-water composition. Preferred product forms include lotions, serums, milky lotions, and the like.
When the cloudy liquid composition according to the present disclosure is a lotion, the viscosity is preferably within the range of 0 to 1000 mPa・s, and when it is a beauty serum or emulsion, the viscosity is preferably 2000 to 9000 mPa・s. s, more preferably 2000 to 6000 mPa·s.

The cloudy liquid cosmetic according to the present disclosure has an L value (transparency; the closer the L value is to 100, the clearer it is) of 20 or less, preferably 15 or less, and more preferably 10 or less, and has a cloudy appearance.

The cloudy liquid composition according to the present disclosure can be produced by a conventional method. For example, it can be obtained by mixing and stirring the aqueous phase components with a homomixer or the like, and gradually adding the oil phase components thereto to emulsify. However, the method is not limited to this example.

The present invention will be explained in more detail by giving specific examples below, but the present invention is not limited to the following examples. In addition, the compounding amount in the following test example is mass % unless otherwise specified.
First, the evaluation method used in the examples of the present application will be explained.

- L value The L value of each composition was measured using a color difference meter Spectrophotometer SE7700 (manufactured by Nippon Denshoku Industries Co., Ltd.).

- Stability After storing each composition at -10°C, 0°C, room temperature (approximately 20°C), 37°C, or 50°C for 4 or 2 weeks, or after freezing and thawing the composition, The condition was visually observed and the stability over time was evaluated according to the following criteria.
A: No creaming or separation was observed, and the condition was uniform.
B: Creaming or separation was observed.
In the present invention, it was determined that A is excellent in stability over time.

- Sensory evaluation A panel of 10 experts applied the cosmetics of each test example to their faces and evaluated the moistness or moisture of the skin after application. Judgments were made according to the following criteria and expressed in symbols in the table. In this application, it is determined that case A is effective.
[judgement]
A: More than 7 out of 10 people rated it as effective.
B: Less than 7 out of 10 people evaluated it as being effective.

Test Example 1: Examination of component (d) Cosmetics containing various anionic compounds as component (d) were produced according to a standard method, and their stability was evaluated according to the method described above. The prescription and results are shown in Table 1.

As shown in Table 1, cosmetics manufactured by blending only components (a), (b), and aqueous components had sufficiently low L values and were cloudy, but were stable against 50°C and freeze-thaw. (Comparative Example 1).
In the cosmetics prepared by adding an anionic compound as component (d) to the formulation of Comparative Example 1, the stability against 50°C and freezing and thawing was improved while maintaining a sufficiently cloudy state (Examples 1 to 7) .

Next, cosmetics containing various cationic compounds as component (d) were produced according to a conventional method, and their stability was evaluated according to the method described above. The prescription and results are shown in Table 2.

As shown in Table 2, the cosmetic composition in which a cationic compound was added as component (d) to the formulation of Comparative Example 1 had improved stability against freezing and thawing at 50°C while maintaining a sufficiently cloudy state. (Examples 9 to 11).

The cosmetics of Examples 1 to 7 and 9 to 11 were non-sticky and had an excellent effect of imparting moisture and softness to the skin.

Therefore, from the above results, for a formulation containing an aqueous component and 0 to 0.2 mass of (c) oil other than isostearic acid, (a) polyoxyethylene hydrogenated castor with an HLB of 7 to 16 was used as a surfactant. By blending oil and (b) sorbitan fatty acid ester with an HLB of 2 to 7, and further blending (d) an ionic compound (anionic compound or cationic compound), it can be used at a wide range of temperatures including freezing and thawing. It has been shown that a cloudy liquid cosmetic can be obtained which has excellent stability over time in this area, is non-sticky, and has an excellent effect of imparting moisture and moistness to the skin.

Test Example 2: Study of Component (c) As mentioned above, oil is generally an ingredient that should be added as much as possible in liquid cosmetics as it is an ingredient that can provide moisture and moisturizing to the skin.
Therefore, an oil other than (c) isostearic acid was added to the formulation of Example 1, and the effect of imparting moisture and moisturization to the skin was investigated according to the method described above. Table 3 shows the formulation and results of the cosmetic.

As shown in Table 3, the cosmetic of Example 1 provides more moisture and moistness to the skin than the cosmetic in which 0.5% by mass of (c) hydrogenated polydecene was added to the formulation. The effect was excellent (comparison between Example 1 and Comparative Example 3).

Therefore, even if the amount of oil other than (c) isostearic acid is low (specifically 0 to 0.2% by mass), the cloudy liquid cosmetic according to the present disclosure is a cloudy liquid cosmetic containing a sufficient amount of the oil. It has been shown that it is more effective than liquid cosmetics in imparting moisture and softness to the skin.

That is, as a surfactant, (a) polyoxyethylene hydrogenated castor oil having an HLB of 7 to 16, (b) a sorbitan fatty acid ester having an HLB of 2 to 7, and (d) an anionic compound or a cationic compound as an ionic compound. When used in combination with (c) isostearic acid, even if the amount of oil other than isostearic acid is 0 to 0.2% by mass, it has excellent stability over time, is non-sticky, and leaves the skin moisturized and moisturized. It was shown that a cloudy liquid cosmetic material with an extremely excellent effect of imparting beauty can be obtained.

Test Example 3: Examination of the effect on the stability of whitening agents Generally, many organic acid-based whitening agents (including salts and derivatives) have a strong whitening effect, but the combination may destabilize the emulsion system. It has been known. Therefore, an organic acid-based whitening agent was added to the cloudy liquid cosmetic composition according to the present disclosure, and the effect on stability was investigated. Table 4 shows the formulation and results of the cosmetic.

In Table 4, Example 13 is a cosmetic manufactured by adding tranexamic acid, a typical organic acid whitening agent, to the formulation of Example 5, but like Example 5, it is stable over a wide temperature range over time. She was very good at sex.
Therefore, it has become clear that organic acid-based whitening agents (including salts and derivatives) can be incorporated into the cloudy liquid cosmetic according to the present disclosure without impairing its high stability over time.

Claims (9)

(a) Polyoxyethylene hydrogenated castor oil with an HLB of 7 to 16 (b) Sorbitan fatty acid ester with an HLB of 2 to 7 (c) Oil content other than isostearic acid of 0% by mass to 0.2% by mass (d ) containing one or more ionic compounds selected from the group consisting of lysine sodium dilauroylglutamate , behentrimonium chloride, steartrimonium chloride, dicocoylethylhydroxyethylmonium methosulfate,
A cloudy liquid cosmetic characterized by an L value of 20 or less. Claim 1, characterized in that the amount of component (a) is 0.05 to 0.5% by mass, and the amount of component (b) is 0.25 to 2.5% by mass. A cloudy liquid cosmetic. The cloudy liquid cosmetic according to claim 1 or 2, wherein the amount of component (d) is 0.01 to 1 times the total amount of components (a) and (b). The cloudy liquid cosmetic according to any one of claims 1 to 3, wherein component (b) is one or more compounds selected from the group consisting of sorbitan sesquioleate and sorbitan sesquiisostearate. . The cloudy liquid cosmetic according to any one of claims 1 to 4, characterized in that it contains an organic whitening agent. The cloudy liquid cosmetic according to any one of claims 1 to 5, wherein component (d) is sodium dilauroylglutamate lysine . Any one of claims 1 to 5, wherein component (d) is one or more selected from the group consisting of behentrimonium chloride, steartrimonium chloride, and dicocoylethylhydroxyethylmonium methosulfate. The cloudy liquid cosmetic described in . The cloudy liquid cosmetic according to any one of claims 1 to 7, wherein the components (a) and (b) form emulsified particles. The cloudy liquid cosmetic according to any one of claims 5 to 8, wherein the organic whitening agent is tranexamic acid.