JP6713255B2 - LCD cosmetics - Google Patents

Description

The present invention relates to a skin care cosmetic suitable for packs (masks) and massages.

Skin care such as packs (masks) and massages normalize stagnant blood flow, promote metabolism of the entire skin, activate cell functions to enhance the production of important components, and treat damaged areas. It is a beauty method that gives your skin vitality by enhancing its restorative power, and makes your skin lively, full and full of moisture and elasticity.
Generally, when performing skin care such as packs (masks) and massage, it involves an operation process of applying cosmetics for the skin of the face and extremities, and in some cases, the applied cosmetics may be applied onto the skin for a certain period of time. Provide a step of staying. In order to carry out these steps smoothly and to obtain a good feeling of use and beauty effect, cosmetics used for pack (mask) massage are in the form of gel, cream, foam, etc. ..

In addition, various cosmetics have been proposed which give warmth to the skin with the expectation of blood circulation promoting effect and the like. As a warming sensation-imparting component to be added to such cosmetics, plant extracts such as capsicum and ginger and vanillyl alkyl ether are known (Patent Document 1). In addition, polyhydric alcohols such as glycerin and polyethylene glycol generate high heat of hydration, and are therefore added to cosmetics as warming agents (Patent Documents 2 to 3).

In recent years, a composition having a liquid crystal structure may be adopted for the purpose of improving aesthetics in cosmetics and dispersibility of a system. For example, Patent Document 4 describes that a skin external preparation composition having an oil-in-water type liquid crystal structure containing a higher alcohol and an ester type nonionic surfactant is excellent in durability and moisturizing property. There is.

JP2012-153675A Patent No. 3660560 Patent No. 5368236 JP, 2013-49635, A

In the application operation of cosmetics that is usually performed during skin care, the skin may be irritated or damaged due to excessive rubbing, which may cause redness or impair the skin barrier ability. It is desirable that even general consumers can easily perform such a coating operation that can suppress such irritation and damage.
It is also desired to further improve the blood circulation promoting effect in skin care such as packs (masks) and massages.
In view of such a situation, it is an object of the present invention to provide a cosmetic for skin care, which can provide a warming effect and can suppress skin irritation during application.

As a result of intensive studies, the present inventors have made a composition containing a C16-22 alcohol, a nonionic surfactant, and a polyhydric alcohol, a cosmetic composition. As a result, they have found that the above problems can be solved, and completed the present invention.

That is, the present invention is as follows.
[1] A cosmetic having a liquid crystal structure containing an alcohol having 16 to 22 carbon atoms, a nonionic surfactant, and a polyhydric alcohol.
[2] The cosmetic according to [1], which contains the polyhydric alcohol in an amount of 50 to 95 mass% with respect to the total amount of the cosmetic.
[3] The cosmetic according to [1] or [2], which further contains a linear fatty acid having 16 to 22 carbon atoms.
[4] The cosmetic according to any one of [1] to [3], which further contains water.
[5] The cosmetic according to any one of [1] to [4], which is for skin care.

The cosmetic composition of the present invention provides a warming effect just by applying it to the skin, has good usability such as spreadability at the time of application, and is a gas-liquid after application operation to the extent that irritation to the skin does not occur. Since the emulsion is formed and whitened, the timing of the end of the coating operation is visualized and is easy to understand. In addition, the gas-liquid emulsion exhibits heat retention and enhances warming sensation. Therefore, the present invention provides a cosmetic for skin care, which is capable of providing an excellent warming effect and suppressing irritation to the skin during application.
Conventionally, a composition that whitens while rubbing on the skin has a gel detergent containing a nonionic surfactant and a carboxyvinyl polymer, but this is a cleaning effect due to foaming (whitening). Was what I expected. That is, it has never been attempted to use a whitening formulation for cosmetics in an attempt to suppress skin irritation during application.

The small-angle X-ray scattering chart of the cosmetic material of Example 1. A shape change photograph when the cosmetic of the present invention is applied to the skin, and an enlarged microscopic photograph after whitening.

The cosmetic of the present invention contains an alcohol having 16 to 22 carbon atoms, preferably 18 to 22 carbon atoms (so-called higher alcohol). The higher alcohol lowers HLB (Hydrophilic-Lypophilic Balance) of the nonionic surfactant described later to form a liquid crystal structure.
0.1-20 mass% is preferable with respect to cosmetics whole quantity, and, as for content of C16-C22 alcohol, 1-10 mass% is more preferable, and 5-10 mass% is further more preferable.
The alcohol having 16 to 22 carbon atoms can be contained in the cosmetics either alone or in combination of two or more.

The alcohol having 16 to 22 carbon atoms is usually an aliphatic alcohol, which may be branched or unbranched, and may be saturated or unsaturated. Further, it is preferably monohydric alcohol. For example, cetanol, palmitolyl alcohol, heptadecanol, 1-heptadecanol, stearyl alcohol, isostearyl alcohol, elaidyl alcohol, oleyl alcohol, linoleyl alcohol, elide linoleyl alcohol, linolenyl alcohol, elaidolinole. Nyl alcohol, ricinoleyl alcohol, nonadecyl alcohol, arachidyl alcohol, heneicosanol, behenyl alcohol, and erucyl alcohol are mentioned, and behenyl alcohol, stearyl alcohol, and arachidyl alcohol are particularly preferable.

The cosmetic of the present invention contains a nonionic surfactant. Thereby, a liquid crystal structure is formed.
The nonionic surfactant is not particularly limited, but hydrophilic ones are preferable, and HL
B is preferably 8 to 18, more preferably 12 from the viewpoint of ease of forming a liquid crystal structure. Here, HLB (Hydrophilic-Lypophilic Balance) means a value calculated from the Griffin's formula.
The content of the nonionic surfactant is preferably 1 to 20% by mass, more preferably 1 to 10% by mass, and further preferably 3 to 8% by mass, based on the total amount of the cosmetic.
The nonionic surfactant can be contained in the cosmetics either alone or in combination of two or more, more preferably in combination of two or more.

As the lipophilic nonionic surfactant, for example, sorbitan fatty acid esters (for example, sorbitan monooleate, sorbitan monostearate, sorbitan monoisostearate, sorbitan monolaurate, sorbitan monopalmitate, sorbitan monostearate, Sorbitan sesquioleate, sorbitan trioleate, penta-2-ethylhexylate diglycerol sorbitan, tetra-2-ethylhexylate diglycerol sorbitan, etc.); glycerin fatty acids (eg monocotton oil fatty acid glycerin, monoerucate glycerin, sesquioleate glycerin) , Glyceryl monostearate, α,α′-glyceryl pyroglutamate oleate, glyceryl monostearate malic acid, etc.); propylene glycol fatty acid esters (eg, propylene glycol monostearate, etc.); POE castor oil/hardened castor oil derivative (POE castor oil, POE hydrogenated castor oil, etc.); glycerin alkyl ether and the like.

Examples of the hydrophilic nonionic surfactant include polyglycerin fatty acid esters (eg, polyglyceryl monooleate, polyglyceryl monostearate, etc.); POE sorbitan fatty acid esters (eg, POE sorbitan monooleate, POE sorbitan monostearate). Rate, POE sorbitan tetraoleate, etc.); POE sorbit fatty acid ester (eg, POE sorbit monolaurate, POE sorbit monooleate, POE sorbit pentaoleate, POE sorbit monostearate, etc.); POE glycerin fatty acid ester ( For example, POE glycerin monostearate, POE glycerin monoisostearate, POE monooleate such as POE glycerin triisostearate, etc.); POE fatty acid esters (eg, POE distearate, POE monodioleate, ethylene glycol distearate, etc.); POE alkyl Ethers (for example, POE lauryl ether, POE oleyl ether, POE stearyl ether, POE-behenyl ether, POE-2-octyldodecyl ether, POE cholestanol ether, etc.); POE alkylphenyl ethers (for example, POE nonylphenyl ether, etc.) ); Pluronic types (for example, Pluronic); POE/POP alkyl ethers (for example, POE/POP cetyl ether, POE/POP-2-decyl tetradecyl ether, POE/POP monobutyl ether, POE/POP hydrogenated lanolin) , POE/POP glycerin ether etc.); Tetra POE/tetra POP ethylenediamine condensates (eg Tetronic etc.); POE castor oil hydrogenated castor oil derivatives (eg POE castor oil, POE hydrogenated castor oil, POE hydrogenated castor oil mono) Isostearate, POE hydrogenated castor oil triisostearate, POE hydrogenated castor oil monopyroglutamic acid monoisostearate diester, POE hydrogenated castor oil maleic acid, etc.; POE beeswax lanolin derivative (for example, POE sorbitol beeswax, etc.); alkanolamide (For example, coconut oil fatty acid diethanolamide, lauric acid monoethanolamide, fatty acid isopropanolamide, etc.); POE propylene glycol fatty acid ester; POE alkylamine; POE fatty acid amide; sucrose fatty acid ester; alkyl glucoside; alkyl ethoxydimethyi Ruamine oxide; trioleyl phosphoric acid and the like.

Among these, polyglycerin fatty acid ester, POE fatty acid ester, and POE alkyl ether are more preferable, and polyglycerin fatty acid ester is further preferable. It is particularly preferable to combine two or more of these. Polyglycerin fatty acid ester is
The polyglycerin preferably has a degree of polymerization of 6 to 14, and more preferably 10. The degree of esterification of the polyglycerol fatty acid ester is preferably 30% or less, more preferably 10% or less. The fatty acid of the polyglycerin fatty acid ester is preferably unsaturated, has preferably 14 to 22 carbon atoms, more preferably 16 to 20 carbon atoms, and further preferably 18 carbon atoms, and oleic acid is particularly preferable.

The cosmetic of the present invention contains a polyhydric alcohol. The polyhydric alcohol generates heat due to heat of hydration and plays a role of providing a warming effect when the cosmetic is applied to the skin.
The content of the polyhydric alcohol is a large amount from the viewpoint of sufficiently imparting the warming effect, and is preferably 50 to 95% by mass, more preferably 60 to 95% by mass, and 70 to 95% by mass with respect to the total amount of the cosmetic. Is more preferable.
The polyhydric alcohol can be contained in the cosmetics either alone or in combination of two or more.

The polyhydric alcohol is not particularly limited as long as it is divalent or higher, but trivalent or higher is preferred. Specifically, dihydric alcohol (for example, ethylene glycol, propylene glycol, trimethylene glycol, 1,2-butylene glycol, 1,3-butylene glycol, tetramethylene glycol, 2,3-butylene glycol, pentamethylene glycol). , 2-butene-1,4-diol, hexylene glycol, octylene glycol, etc.; trihydric alcohol (eg, glycerin, trimethylolpropane, etc.); tetrahydric alcohol (eg, 1,2,6-hexanetriol) Pentaerythritol etc.); pentavalent alcohol (eg xylitol etc.); hexavalent alcohol (eg sorbitol, mannitol etc.); polyhydric alcohol polymer (eg diethylene glycol, dipropylene glycol, triethylene glycol, polypropylene glycol, etc. Tetraethylene glycol, diglycerin, polyethylene glycol, triglycerin, tetraglycerin, polyglycerin, etc.); divalent alcohol alkyl ethers (eg, ethylene glycol monomethyl ether, ethylene glycol monoethyl ether, ethylene glycol monobutyl ether, ethylene glycol mono) Phenyl ether, ethylene glycol monohexyl ether, ethylene glycol mono-2-methylhexyl ether, ethylene glycol isoamyl ether, ethylene glycol benzyl ether, ethylene glycol isopropyl ether, ethylene glycol dimethyl ether, ethylene glycol diethyl ether, ethylene glycol dibutyl ether, etc.); 2 Polyhydric alcohol alkyl ethers (for example, diethylene glycol monomethyl ether, diethylene glycol monoethyl ether, diethylene glycol monobutyl ether, diethylene glycol dimethyl ether, diethylene glycol diethyl ether, diethylene glycol butyl ether, diethylene glycol methyl ethyl ether, triethylene glycol monomethyl ether, triethylene glycol monoethyl ether, propylene Glycol monomethyl ether, propylene glycol monoethyl ether, propylene glycol monobutyl ether, propylene glycol isopropyl ether, dipropylene glycol methyl ether, dipropylene glycol ethyl ether, dipropylene glycol butyl ether, etc. ); Dihydric alcohol ether ester (for example, ethylene glycol monomethyl ether acetate, ethylene glycol monoethyl ether acetate, ethylene glycol monobutyl ether acetate, ethylene glycol monophenyl ether acetate, ethylene glycol diazibate, ethylene glycol disuccinate, diethylene glycol mono) Ethyl ether acetate, diethylene glycol monobutyl ether acetate, propylene glycol monomethyl ether acetate, propylene glycol monoethyl ether acetate, propylene glycol monopropyl ether acetate, propylene glycol monophenyl ether acetate, etc.; glycerin monoalkyl ether (eg, xyl alcohol, ceracyl) Alcohol, batyl alcohol, etc.); Sugar alcohol (eg, sorbitol, maltitol, maltotriose, mannitol, sucrose, erythritol, glucose, fructose, starch-decomposing sugar, maltose, xylitolose, starch-decomposing sugar reducing alcohol, etc.); Glysolid Tetrahydrofurfuryl alcohol; POE-tetrahydrofurfuryl alcohol; POP-butyl ether; POP.POE-butyl ether; tripolyoxypropylene glycerin ether; POP-glycerin ether; POP-glycerin ether phosphate; POP.POE-pentaneerythritol ether Etc.
Of these, glycerin, diglycerin, dipropylene glycol, and polyethylene glycol having a molecular weight of 600 or less are more preferable, and glycerin is particularly preferable.

The cosmetic of the present invention preferably further contains a linear fatty acid having 16 to 22 carbon atoms (so-called higher linear fatty acid). This makes it easier for the cosmetic to whiten due to the applying operation.
The content of the linear fatty acid having 16 to 22 carbon atoms is preferably 0.1 to 10% by mass, more preferably 0.1 to 5% by mass, and further preferably 0.1 to 2% by mass with respect to the total amount of the cosmetic. preferable.
The linear fatty acid having 16 to 22 carbon atoms may be either saturated or unsaturated, and examples thereof include coconut oil fatty acid, lauric acid, myristic acid, palmitic acid, stearic acid, isostearic acid and behenic acid, and stearin. Acids are particularly preferred.
The linear fatty acid having 16 to 22 carbon atoms can be contained in the cosmetics either alone or in combination of two or more.

The cosmetic of the present invention preferably further contains water. This makes it easier to spread the cosmetics when applied, and improves usability.
The content of water is preferably 0.1 to 20% by mass, more preferably 0.1 to 15% by mass, and even more preferably 0.1 to 10% by mass with respect to the total amount of the cosmetic.

The cosmetic of the present invention has a liquid crystal structure. The liquid crystal structure, which is usually in the form of a transparent gel, wraps air in the application of a cosmetic material to form a gas-liquid emulsion, and changes from transparent to white. The cosmetic of the present invention can form a fine gas-liquid emulsion, and the particle size thereof is preferably 50 μm or less, more preferably 20 μm or less, still more preferably 10 μm or less.
Since the liquid crystal structure whitens (changes to a gas-liquid emulsion) with less application operation compared to conventional skin care cosmetics, the sign of application operation appears visually without causing skin irritation. Become. Further, even with a small amount of application operation and massage time, since the warming effect is imparted by the polyhydric alcohol-rich prescription, the blood circulation promoting effect and the satisfaction of the massage are not impaired. Furthermore, since the liquid crystal structure changes and a fine gas-liquid emulsion layer spreads on the skin after application, heat retention is exhibited and the warming effect can be enhanced.

Therefore, the cosmetic of the present invention can be suitably applied to skin care applications such as packs (masks) and massages. The application of the cosmetics of the present invention is not particularly limited to the face, extremities, torso, etc., and since skin care can be performed with a low-stimulation application action, the cosmetics can be suitably applied to a face with thin skin. Further, it may be washed off after application or after application for a certain period of time, and as a skin care cosmetic, it may be used for washing in addition to or for packs and massages.

The cosmetics of the present invention may optionally contain other components usually used in cosmetics as long as the effects of the present invention are not impaired. Examples of such optional components include oils, moisturizers, powder components, waxes, other surfactants, sequestering agents, lower alcohols, monosaccharides, oligosaccharides, polysaccharides, amino acids, organic amines, polymer emulsions, Examples thereof include pH adjusters and antioxidants.

Examples of the oil agent include polar oil, natural oil, hydrocarbon oil, silicone oil and the like.
As the polar oil, as a synthetic ester oil, isopropyl myristate, cetyl octanoate, octyldodecyl myristate, isopropyl palmitate, butyl stearate, hexyl laurate, myristyl myristate, decyl oleate, hexyldecyl dimethyloctanoate, lactic acid Cetyl, myristyl lactate, lanolin acetate, isocetyl stearate, isocetyl isostearate, cholesteryl 12-hydroxystearyl acid, ethylene glycol di-2-ethylhexylate, dipentaerythritol fatty acid ester, N-alkyl glycol monoisostearate, neopentyl dicaprate. Glycol, diisostearyl malate, glycerin di-2-heptylundecanoate, trimethylolpropane tri-2-ethylhexylate, trimethylolpropane triisostearate, penta-2-ethylhexanoic acid pentaneerythritol, tri-2-ethylhexanoic acid Glyceryl, trimethylolpropane triisostearate, cetyl 2-ethylhexanoate, 2-ethylhexyl palmitate, glyceryl trimyristate, tri-2-heptylundecanoic acid glyceride, castor oil fatty acid methyl ester, oleic acid oil, cetostearyl alcohol , Acetoglyceride, 2-heptylundecyl palmitate, diisobutyl adipate, N-lauroyl-L-glutamic acid-2-octyldodecyl ester, di-2-heptylundecyl adipate, ethyl laurate, di-2-sebacate Ethylhexyl, 2-hexyldecyl myristate, 2-hexyldecyl palmitate, 2-hexyldecyl adipate, diisopropyl sebacate, 2-ethylhexyl succinate, ethyl acetate, butyl acetate, amyl acetate, triethyl citrate, octyl methoxycinnamate. Etc.

As natural oils, avocado oil, camellia oil, turtle oil, macadamia nut oil, corn oil, mink oil, olive oil, rapeseed oil, egg yolk oil, sesame oil, persic oil, wheat germ oil, southern oil, castor oil, linseed oil, safflower Oil, cottonseed oil, eno oil, soybean oil, peanut oil, teaseed oil, kaya oil, rice bran oil, cinnamon oil, Japanese kiri oil, jojoba oil, germ oil, triglycerin, glyceryl trioctanoate, glycerin triisopalmitate, etc. Can be mentioned.
Examples of the hydrocarbon oil include isododecane, isohexadecane, squalane, vaseline, hydrogenated poly(C6-12 olefin), hydrogenated polyisobutene, and the like, and vaseline is preferable.
Examples of the silicone oil include cyclopentasiloxane, decamethylcyclopentasiloxane, caprylyl methicone, dimethicone, (dimethicone/vinyl dimethicone) crosspolymer, (dimethicone/phenyl vinyl dimethicone) crosspolymer, and the like. Highly polymerized dimethicone of 10,000 mPas is preferred.

As the moisturizer, for example, polyethylene glycol, propylene glycol, glycerin, 1,3-butylene glycol, xylitol, sorbitol, maltitol, chondroitin sulfate, hyaluronic acid, mucoitin sulfate, caronic acid, atelocollagen, cholesteryl-12-hydroxystearate. , Sodium lactate, bile salt, dl-pyrrolidone carboxylate, short-chain soluble collagen, diglycerin (EO)PO adduct, Iza yoibara extract, Achillea millefolium extract, Merrilot extract and the like.

Examples of the powder component include inorganic powder (for example, talc, kaolin, mica, sericite, muscovite, phlogopite, synthetic mica, phlogopite, biotite, permiculite, magnesium carbonate, calcium carbonate, silicic acid). Aluminum, barium silicate, calcium silicate, magnesium silicate, strontium silicate, metal tungstate, magnesium, silica, zeolite, barium sulfate, calcined calcium sulfate (calculated gypsum), calcium phosphate, fluoroapatite, hydroxyapatite, ceramic powder , Metal soap (eg, zinc myristate, calcium palmitate, aluminum stearate), boron nitride, etc.; organic powder (eg, polyamide resin powder (nylon powder), polyethylene powder, polymethylmethacrylate powder, polystyrene powder, styrene) And acrylic acid copolymer resin powder, benzoguanamine resin powder, polytetrafluoroethylene powder, cellulose powder, etc.); inorganic white pigments (eg, titanium dioxide, zinc oxide, etc.); inorganic red pigments (eg, iron oxide ( Red iron oxide), iron titanate, etc.); inorganic brown pigments (eg, γ-iron oxide, etc.); inorganic yellow pigments (eg, yellow iron oxide, ocher, etc.); inorganic black pigments (eg, black iron oxide, low) Titanium oxide etc.); Inorganic purple pigments (eg mango violet, cobalt violet etc.); Inorganic green pigments (eg chromium oxide, chromium hydroxide, cobalt titanate etc.); Inorganic blue pigments (eg ultramarine blue, Navy blue or the like); Pearl pigment (for example, 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 pigment (for example, aluminum powder, Copper powder and the like); 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 No. 405, Organic pigments such as 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 No. 401, Red No. No. 505, orange No. 205, yellow No. 4, yellow No. 5, yellow No. 202, yellow No. 203, green No. 3 and blue No. 1); and natural dyes (eg, chlorophyll, β-carotene, etc.) and the like.

Other surfactants include anionic surfactants, cationic surfactants, and amphoteric surfactants.
Examples of the anionic surfactant include fatty acid soap (for example, sodium laurate, sodium palmitate and the like); higher alkyl sulfate ester salt (for example, sodium lauryl sulfate, potassium lauryl sulfate and the like); alkyl ether sulfate ester salt (for example, POE lauryl triethanolamine sulphate, POE sodium lauryl sulphate etc.; N-acyl sarcosinic acid (eg sodium lauroyl sarcosine etc.); higher fatty acid amide sulfonates (eg N-myristoyl-N-methyl taurine sodium, coconut oil fatty acid) Sodium methyl tauride, sodium lauryl methyl tauride, etc.); Phosphate ester salts (sodium POE oleyl ether phosphate, POE stearyl ether phosphoric acid, etc.); Sulfosuccinates (eg sodium di-2-ethylhexyl sulfosuccinate, monolauroyl) Monoethanolamide sodium polyoxyethylene sulfosuccinate, sodium lauryl polypropylene glycol sulfosuccinate, etc.); Alkylbenzene sulfonates (eg sodium linear dodecyl benzene sulfonate, triethanolamine linear dodecyl benzene sulfonate, linear dodecyl benzene sulfonate, etc.); Higher fatty acid ester sulfate ester salt (for example, hydrogenated coconut oil fatty acid sodium glycerin sulfate, etc.); N-acyl glutamate (for example, monosodium N-lauroyl glutamate, disodium N-stearoyl glutamate, N-myristoyl-L-mono sodium glutamate) Etc.); Sulfated oil (eg, funnel oil etc.); POE alkyl ether carboxylic acid; POE alkyl allyl ether carboxylate; α-olefin sulfonate; higher fatty acid ester sulfonate; secondary alcohol sulfate ester salt; higher grade Fatty acid alkylolamide sulfate ester salt; lauroyl monoethanolamide sodium succinate; ditriethanolamine N-palmitoyl aspartate; sodium caseinate and the like.

Examples of the cationic surfactant include alkyl trimethyl ammonium salts (eg stearyl trimethyl ammonium chloride, lauryl trimethyl ammonium chloride etc.); alkyl pyridinium salts (eg cetyl pyridinium chloride etc.); distearyl dimethyl ammonium dialkyl dimethyl ammonium salts; Poly(N,N'-dimethyl-3,5-methylenepiperidinium) chloride; alkyl quaternary ammonium salt; alkyldimethylbenzyl ammonium salt; alkylisoquinolinium salt; dialkylmorphonium salt; POE alkylamine; alkyl Amine salts; polyamine fatty acid derivatives; amyl alcohol fatty acid derivatives; benzalkonium chloride; benzethonium chloride and the like.

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

Examples of the sequestering agent include 1-hydroxyethane-1,1-diphosphonic acid, 1-hydroxyethane-1,1-diphosphonic acid tetrasodium salt, edetate disodium, edetate trisodium, and edetate tetrasodium salt. , 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 the lower alcohol include ethanol, propanol, isopropanol, isobutyl alcohol, t-butyl alcohol and the like.

Examples of monosaccharides include tricarbon sugars (eg, D-glyceryl aldehyde, dihydroxyacetone, etc.); tetracarbon sugars (eg, D-erythrose, D-erythrulose, D-threose, erythritol, etc.); pentacarbon sugars (eg, , L-arabinose, D-xylose, L-lyxose, D-arabinose, D-ribose, D-ribulose, D-xylulose, L-xylulose, etc.; hexose (for example, D-glucose, D-talose, D -Bucicose, D-galactose, D-fructose, L-galactose, L-mannose, D-tagatose and the like); heptacarbon sugar (for example, aldoheptose, heprose and the like); octose sugar (for example, octulose and the like); For example, 2-deoxy-D-ribose, 6-deoxy-L-galactose, 6-deoxy-L-mannose, etc.; Amino sugar (for example, D-glucosamine, D-galactosamine, sialic acid, aminouronic acid, muramic acid, etc.) ); Uronic acid (for example, D-glucuronic acid, D-mannuronic acid, L-guluronic acid, D-galacturonic acid, L-iduronic acid, etc.) and the like.

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

Examples of amino acids include neutral amino acids (eg, threonine, cysteine, etc.); basic amino acids (eg, hydroxylysine, etc.) and the like. Examples of the amino acid derivative include sodium acyl sarcosine (sodium lauroyl sarcosine), acyl glutamate, sodium acyl β-alanine, glutathione, and pyrrolidone carboxylic acid.

Examples of the organic amine include monoethanolamine, diethanolamine, triethanolamine, morpholine, triisopropanolamine, 2-amino-2-methyl-1,3-propanediol, 2-amino-2-methyl-1-propanol and the like. Are listed.

Examples of the polymer emulsion include acrylic resin emulsion, polyethyl acrylate emulsion, acrylic resin liquid, polyacrylic alkyl ester emulsion, polyvinyl acetate resin emulsion, natural rubber latex and the like.

Examples of the pH adjusting agent include buffers such as lactic acid-sodium lactate, citric acid-sodium citrate, and succinic acid-sodium succinate.
Examples of vitamins include vitamins A, B1, B2, B6, C, E and derivatives thereof, pantothenic acid and derivatives thereof, biotin and the like.

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

Other components that can be compounded include, for example, antiseptics (ethyl paraben, butyl paraben, etc.); antiphlogistics (eg, glycyrrhizinic acid derivatives, glycyrrhetinic acid derivatives, salicylic acid derivatives, hinokitiol, zinc oxide, allantoin, etc.); whitening agents. (For example, placenta extract, Yukinoshita extract, arbutin, etc.); Various extracts (for example, pearl oyster, laurel, shikon, peony, assembly, birch, sage, loquat, carrot, aloe, mallow, iris, grape, yochinin, loofah , Lily, saffron, senkyu, gypsum, hypericum, ononis, garlic, capsicum, chimpi, touki, seaweed, etc., activator (eg, royal jelly, photosensitizer, cholesterol derivative, etc.); blood circulation promoter (eg, nonyl acid warenylamide) , Nicotinic acid benzyl ester, nicotinic acid β-butoxyethyl ester, capsaicin, zingerone, cantalis tincture, ictamol, tannic acid, α-borneol, nicotinic acid tocopherol, inositol hexanicotinate, cyclanderate, cinnarizine, tolazoline, acetylcholine, Verapamil, cepharanthin, γ-oryzanol, etc.); antiseborrheic agents (eg, sulfur, thiantol etc.); anti-inflammatory agents (eg, tranexamic acid, thiotaurine, hypotaurine etc.) and the like.

The cosmetic of the present invention preferably contains substantially no water-soluble polymer. When a water-soluble polymer is contained, the viscosity of the cosmetic material easily rises, and it becomes difficult for the cosmetic material to form a gas-liquid emulsion due to the coating operation, and it takes a long time until whitening (a lot of rubbing). This may cause irritation or damage to the skin.
The term "substantially free from" is not particularly limited, but is preferably 0.01% by mass or less, more preferably 0.001% by mass or less, and further preferably 0.0001% by mass with respect to the total amount of the cosmetic. Says:

As the water-soluble polymer, for example, a plant-based polymer (for example, gum arabic, tragacanth gum, galactan, guar gum, carob gum, karaya gum, carrageenan, pectin, agar, quince seed (quince), algecoloid (cassius extract), starch (Rice, corn, potato, wheat), glycyrrhizic acid); microbial macromolecules (eg xanthan gum, dextran, succinoglucan, bullan etc.); animal macromolecules (eg collagen, casein, albumin, gelatin etc.) etc. Natural water-soluble polymer of
Starch polymer (for example, carboxymethyl starch, methyl hydroxypropyl starch, etc.); Cellulose polymer (methyl cellulose, ethyl cellulose, methyl hydroxypropyl cellulose, hydroxyethyl cellulose, sodium cellulose sulfate, hydroxypropyl cellulose, carboxymethyl cellulose, sodium carboxymethyl cellulose, Crystalline cellulose, cellulose powder, etc.); semi-synthetic water-soluble polymer such as alginic acid-based polymer (eg, sodium alginate, propylene glycol alginate ester, etc.),
Vinyl-based polymer (eg, polyvinyl alcohol, polyvinyl methyl ether, polyvinylpyrrolidone, carboxyvinyl polymer, etc.); Polyoxyethylene-based polymer (eg, polyethylene glycol 20,000, 40,000, 60,000, etc.); Acrylic Polymers (for example, sodium polyacrylate, polyethyl acrylate, polyacrylamide, etc.); polyethyleneimine; synthetic water-soluble polymers such as cationic polymers.

The cosmetic of the present invention can be produced by a conventional method. For example, an oil phase component containing an alcohol having 16 to 22 carbon atoms, a nonionic surfactant, and a linear fatty acid having 16 to 22 carbon atoms, and a water containing a polyhydric alcohol and optionally water. It can be produced by heating and dissolving the phase components and mixing them, respectively, and then adding the aqueous phase component to the oil phase component and cooling while stirring and mixing.
Whether or not a liquid crystal structure is formed can be confirmed by a standard method, for example, visual judgment, appearance of phase equilibrium diagram, electric conductivity measurement, self-diffusion coefficient measurement by NMR, small-angle X-ray scattering, freeze fracture method. It can be determined by observing a replica prepared by using an electron microscope.

Hereinafter, the present invention will be described in more detail with reference to Examples, but the present invention is not limited to the following Examples unless the gist thereof is exceeded.

Liquid crystal milk compositions of Examples and Comparative Examples were prepared according to the formulations shown in Table 1 and Table 2.
That is, first, the component A (oil phase) and the component B (aqueous phase) were heated and dissolved at 80° C. and mixed. Then, the component B (water phase) was gradually added to the component A (oil phase), and the mixture was stirred and mixed, and cooled to 30° C. to obtain a gel composition.

<LCD check>
For each of the prepared compositions, formation of a liquid crystal structure was confirmed by visual observation and small-angle X-ray scattering analysis. That is, it is confirmed that the appearance is a gel-like structure and that the liquid crystal structure is formed by the appearance of the diffraction peaks of the primary and secondary peaks derived from the lamella liquid crystal structure in the X-ray small angle scattering curve. (Fig. 1). The measurement conditions for the small-angle X-ray scattering analysis are as follows.
Small-angle X-ray scattering device: Anton Paar SAXSpace system Detector: Diode array detector Source: Cu line Voltage: 60 kV
Measurement temperature: 20℃
The sample was filled in a liquid cell (glass capillary 1 mmφ) and measured.
The results are shown in Tables 1 and 2. In Examples 1 , 2, 4 to 11 and 13 and Comparative Examples 3 and A , formation of a gel-like liquid crystal structure was confirmed. Although Example 12 was gel-like, a clear secondary peak could not be confirmed because the liquid crystal structure had a peak intensity equal to or lower than the measurable intensity in the small-angle X-ray scattering analysis. Further, in Comparative Examples 1 and 2, the appearance was fluid and gel formation could not be confirmed, and in Comparative Examples 1, 2, 4 and 5, no diffraction peak appeared and formation of a liquid crystal structure could not be confirmed.

<Evaluation of the number of times until bleaching>
1 g of each of the prepared compositions was applied to an arm, massaged in a light circular motion with a hand and applied, and the number of times required to change from a gel form to a white cream (foam) form was counted.
The results are shown in Tables 1 and 2. When the composition of Example 1 after whitening is observed under a microscope, it is found that a gas-liquid emulsion is formed (FIG. 2).

<Evaluation of usability>
1 g of each of the prepared compositions was taken on the arm, and the feeling of use when the composition was lightly drawn in a circle until the composition became white was evaluated for each of the following items. The results are shown in Tables 1 and 2.
(Goodness of freedom)
○: Easy to spread, △: Slightly hard to spread, ×: Hard to spread, −: Not evaluated (persistence of warm feeling)
◎: Warm feeling continues after massage for a while, ○: Warm feeling continues after massage, △: Warm feeling is weakened during massage, ×: Warm feeling is not felt, −: Not evaluated (irritating)
◯: No redness of skin is generated, Δ: Redness of skin is slightly generated, ×: Redness of skin is generated, −: Not evaluated

INDUSTRIAL APPLICABILITY According to the present invention, a cosmetic for skin care that provides a warming effect and can suppress skin irritation due to excessive treatment is industrially very useful.

Claims (3)

Cosmetics for skin care involving a coating operation, containing an alcohol having 16 to 22 carbon atoms, a nonionic surfactant, and a polyhydric alcohol in an amount of 65 to 95 mass% with respect to the total amount of the cosmetic, and having a liquid crystal structure. (However, excluding those containing propellant) . The cosmetic according to claim 1, further comprising a linear fatty acid having 16 to 22 carbon atoms. The cosmetic according to claim 1 or 2, further comprising water.