JP4801563B2 - Emulsifier cosmetic - Google Patents

Description

  The present invention relates to cosmetics, and more particularly to emulsifier-type cosmetics useful for improving skin softness.

In cosmetics, increasing the softness of the skin due to its use is a favorable phenomenon and is counted as one of the beneficial effects of cosmetics. As a means for measuring such skin flexibility, there is a known method, and there is a commercially available device that already uses this method. (For example, see Patent Document 1, Patent Document 2, and Patent Document 3) However, it is not known at all what kind of cosmetics are excellent in the action of softening the skin in this way, and the factor is also The current situation was not grasping. That is, it can be said that development of a means for designing cosmetics having an action of softening the skin according to the purpose by clarifying at least a part of these factors has been desired. To improve the flexibility of the skin, different and to smooth the surface of the skin.

  On the other hand, hardened rapeseed oil and phospholipid are raw materials for cosmetics (see, for example, Patent Document 4 and Patent Document 5), but it is not known at all that they contribute to the action of enhancing skin flexibility. . Furthermore, it is an emulsifier-type cosmetic containing 1) hardened rapeseed oil and 2) phospholipid, wherein the content of the hardened rapeseed oil is 1 to 10% by mass, and relative to the content of the rapeseed oil Further, cosmetics having a phospholipid content of 1 to 20% by mass are not known at all, and it is not known at all that the cosmetics having such a configuration are excellent in the effect of enhancing skin flexibility.

JP 20066541 A Japanese Patent Laid-Open No. 2005-348991 Japanese Patent Laid-Open No. 2005-220084 JP 2005-220119 A Japanese Patent Laying-Open No. 2005-8591

  The present invention has been made under such circumstances, and provides at least a part of factors that improve the softness of the skin and provides means for designing a cosmetic having an action of softening the skin. Is an issue.

  In light of this situation, as a result of repeated earnest research efforts to clarify the factors that improve skin flexibility and to seek a means to design cosmetics that have the effect of softening the skin, It has been found that such effects can be obtained by the combined use of 1) hardened rapeseed oil and 2) phospholipid in cosmetics, and the present invention has been completed. That is, the present invention is as follows.

(1) An emulsifier-type cosmetic comprising 1) hardened rapeseed oil, and 2) phospholipid, wherein the content of the hardened rapeseed oil is 1 to 10% by mass and relative to the content of the rapeseed oil And a phospholipid content of 1 to 20% by mass.
(2) The cosmetic according to (1), wherein the phospholipid is hydroxylated lecithin.
(3) Hardened rapeseed oil and phospholipid are dissolved in advance by heating to prepare a solvated complex, which is then diluted with a diluent made of polar oil and dissolved in advance. The cosmetic according to (1) or (2), wherein the cosmetic is prepared in addition to a mixture of oil phase components.
(4) The diluent of (1) to (3) , wherein the diluent is an ester of 2-ethylhexanoic acid with an alcohol selected from cetyl alcohol, glycerin, neopentyl glycol and pentaerythritol . Cosmetics in any one .

  ADVANTAGE OF THE INVENTION According to this invention, the means to design the cosmetics which clarify the at least one part of the factor which improves the softness | flexibility of skin, and has the effect | action which softens skin can be provided.

(1) Hardened rapeseed oil which is an essential component of the cosmetic of the present invention The cosmetic of the present invention is characterized by containing a hardened rapeseed oil as an essential component. Here, the cosmetic in the present invention is a composition for transdermal administration which keeps the skin healthy and excludes those for pharmaceutical use, and includes quasi drugs. The hardened rapeseed oil is obtained by hydrogenating rapeseed oil obtained by extraction or squeezing from the seeds of Nanohana, which has an iodine value of 45-15, more preferably 40-. 20 things. This is because even if the iodine value is below or above the lower limit, the skin softening action due to the interaction with phospholipids described later is reduced, and the effect may not be sufficient. As such hardened rapeseed oil, those already on the market exist, and such commercially available products can be purchased and used. As a preferable commercial item, for example, “rapeseed oil HR-35” (manufactured by Yokoseki Yushi Kogyo Co., Ltd.) can be exemplified. Such an ingredient works together with phospholipids described later, and has an effect of improving the softness of the skin after use by using such a cosmetic in an emulsifier type cosmetic. The effect of improving the flexibility of the skin can be grasped as a measurement value by “Venustron” manufactured by AXIOM. This measuring device emits a certain frequency (Hz) from the probe, and evaluates the softness by the frequency difference Δf when it comes in contact with the object. Specifically, when a soft object is touched, the frequency decreases, so Δf becomes negative, and when a hard object touches, the frequency increases, so Δf becomes positive. That is, the value obtained by subtracting the measurement value before the treatment from the measurement value after the treatment is a negative value, and the larger the absolute value, the more the skin flexibility can be identified. As a threshold value of such an effect, −3 is preferable, and −3.5 is more preferable. In order to achieve such an effect, in the cosmetic of the present invention, the hardened rapeseed oil is preferably contained in an amount of 1 to 10% by mass, more preferably 2 to 8%, based on the total amount of the cosmetic. % By mass. This is because if the amount is too small, the above-described effect may not be achieved, and if the amount is too large, the effect reaches a peak and the degree of freedom of prescription may be impaired.

(2) Phospholipid which is an essential component of the cosmetic of the present invention The cosmetic of the present invention is characterized by containing phospholipid as an essential component. The phospholipid is not particularly limited as long as it is usually used in cosmetics and the like. For example, lecithin, phosphatidic acid, phosphatidylglycerol, phosphatidylethanolamine, phosphatidylinositol, phosphine. Fattydylserine or a lyso form thereof can be preferably exemplified, and among these, a lecithin hydroxide obtained by oxidizing an unsaturated bond of lecithin into a dihydroxy form is particularly preferable. These phospholipids can be obtained by extraction and purification from soybeans, egg yolk of chicken eggs, mammalian brain and the like. Such products already exist as cosmetic raw materials, and such commercial products can be purchased and used. For example, in the case of lecithin hydroxide, “NIKKOL lecinol SH50” (manufactured by Nippon Surfactant Kogyo Co., Ltd.), which is an equivalent mixture of hydroxylated lecithin and glycerin based on soybean, is preferably exemplified. These phospholipids can contain only one species, or can contain two or more species in combination. In the emulsification system, such a component works with the hardened rapeseed oil, which is the other essential component, and has an action of improving the softness of the skin. In order to exert such effects, the phospholipid is preferably contained in a total amount of 0.01 to 2% by mass, more preferably 0.05 to 1% by mass, based on the total amount of the cosmetic. This is because there are cases where the effect is not achieved even if the amount is too small or too large. In addition, when manufacturing the cosmetics of the present invention, the hardened rapeseed oil and phospholipids, which are essential components of the cosmetics of the present invention, are preliminarily sufficiently solvated with each other in the entire oil phase component. It is preferable to disperse uniformly, and for this purpose, a hardened rapeseed oil and a phospholipid are mixed well beforehand in a molten state to form a kind of complex in a solvated state. It is preferable to produce it through a process of diluting with a polar oil having good compatibility and mixing with other oil phase components after that. The polar oil for dilution is preferably an ester of alcohol selected from cetyl alcohol, glycerin, neopentyl glycol and pentaerythritol and 2-ethylhexanoic acid, and the polar oil for dilution and the complex The mixing ratio is preferably 1: 2 to 2: 1. Examples of commercially available polar oils for dilution include “cetyl SN-1” (manufactured by Cognis Japan Co., Ltd.), tetra (2-ethylhexanoic acid) pentaeryhyde, which is 2-ethylhexanoic acid cetyl ester. “Cetiole PEEH4” (manufactured by Cognis Japan Co., Ltd.), which is a slit, “Nomcoat TIO” (manufactured by Nisshin Oilio Group Co., Ltd.), neopentylglycol-2-ethylhexanoic acid diester, which is 2-ethylhexanoic acid triglyceride A specific example is “Cosmall 525” (manufactured by Nisshin Oillio Group, Inc.).

(3) Cosmetics of the present invention The cosmetic of the present invention contains the above-mentioned essential components and is in the form of an emulsifier. Examples of the emulsifier form include an oil-in-water emulsifier form, a water-in-oil emulsifier form, These complexed multilayer emulsifier forms can be preferably exemplified, and the oil-in-water emulsifier form is particularly preferable among them. This is because the effect of the present invention is particularly evident in the oil-in-water emulsifier form.

In the cosmetic of the present invention, in addition to the components described so far, optional components usually used in cosmetics can be contained within a range that does not impede the effects of the present invention. Examples of such optional components, e.g., macadamia nut oil, Abou transient oil, corn oil, olive oil, rape seed oil which has not been cured, sesame oil, castor oil, safflower oil, cottonseed oil, jojoba oil, coconut oil, palm oil, Liquid lanolin, hydrogenated coconut oil, hydrogenated oil, molasses, hydrogenated castor oil, beeswax, candelilla wax, carnauba wax, ibotarou, lanolin, reduced lanolin, hard lanolin, jojoba wax and other oils, waxes; liquid paraffin, squalane, pristane, ozokerite , Hydrocarbons such as paraffin, ceresin, petrolatum, microcrystalline wax; higher fatty acids such as oleic acid, isostearic acid, lauric acid, myristic acid, palmitic acid, stearic acid, behenic acid, undecylenic acid; cetyl alcohol, stearyl alcohol Higher alcohols such as isostearyl alcohol, behenyl alcohol, octyldodecanol, myristyl alcohol, cetostearyl alcohol; cetyl palmitate, cetyl stearate, cetyl isooctanoate, isopropyl myristate, hexyldecyl isostearate, diisopropyl adipate, sebacic acid di-2-ethylhexyl, cetyl lactate, diisostearyl malate, ethylene glycol di-2-ethylhexanoate, neopentyl glycol dicaprate, di-2-heptyl undecanoic acid glycerin, tri-2-ethylhexanoic acid trimethylol Synthetic ester oils such as propane and trimethylolpropane triisostearate; dimethylpolysiloxane, methylphenylpolysiloxane, diphenylpolysiloxane Linear polysiloxanes such as octane; cyclic polysiloxanes such as octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, dodecamethylcyclohexanesiloxane; amino-modified polysiloxane, polyether-modified polysiloxane, alkyl-modified polysiloxane, fluorine-modified polysiloxane Oils such as silicone oil such as modified polysiloxane such as fatty acid soap (sodium laurate, sodium palmitate, etc.), anionic surfactants such as potassium lauryl sulfate, alkylsulfuric triethanolamine ether; stearyltrimethylammonium chloride, Cationic surfactants such as benzalkonium chloride and laurylamine oxide; imidazoline-based amphoteric surfactants (2-cocoyl-2-imidazolinium hydroxide-1-carbon Ruboxyethyloxy disodium salt), betaine surfactants (alkyl betaine, amide betaine, sulfobetaine, etc.), amphoteric surfactants such as acylmethyl taurine; sorbitan fatty acid esters (sorbitan monostearate, sesquiolein) Sorbitan acid), glycerin fatty acids (glyceryl monostearate, etc.), propylene glycol fatty acid esters (propylene glycol monostearate, etc.), hardened castor oil derivatives, glycerin alkyl ethers, POE sorbitan fatty acid esters (POE sorbitan monooleate) , Monostearic acid polyoxyethylene sorbitan, etc.), POE sorbite fatty acid esters (POE-sorbite monolaurate, etc.), POE glycerin fatty acid esters (POE-glycerin mono) Sotearate, etc.), POE fatty acid esters (polyethylene glycol monooleate, POE distearate, etc.), POE alkyl ethers (POE2-octyldodecyl ether, etc.), POE alkyl phenyl ethers (POE nonyl phenyl ether, etc.), Pluronic types, POE -POP alkyl ethers (POE / POP2-decyltetradecyl ether, etc.), Tetronics, POE castor oil / hardened castor oil derivatives (POE castor oil, POE hardened castor oil, etc.), sucrose fatty acid esters, alkyl glucosides, etc. Nonionic surfactants: polyethylene glycol, glycerin, 1,3-butylene glycol, erythritol, sorbitol, xylitol, maltitol, propylene glycol, dipropylene glycol , Diglycerin, isoprene glycol, 1,2-pentanediol, 2,4-hexanediol, 1,2-hexanediol, 1,2-octanediol and other polyhydric alcohols; sodium pyrrolidonecarboxylate, lactic acid, sodium lactate Moisturizing components such as mica, talc, kaolin, synthetic mica, calcium carbonate, magnesium carbonate, anhydrous silicic acid (silica), aluminum oxide, barium sulfate, etc .; surface May be treated, inorganic pigments of bengara, yellow iron oxide, black iron oxide, cobalt oxide, ultramarine, bitumen, titanium oxide, zinc oxide; surface may be treated, titanium mica, fish phosphorus foil Pearling agents such as bismuth oxychloride; red 202, red 228, red 226, yellow 4 which may be raked No., Blue 404, Yellow No. 5, Red No. 505, Red No. 230, Red No. 223, Orange No. 201, Red No. 213, Yellow No. 204, Yellow No. 203, Blue No. 1, Green No. 201, Purple No. 201, Organic dyes such as Red No. 204; Organic powders such as polyethylene powder, polymethyl methacrylate, nylon powder, organopolysiloxane elastomer; Paraaminobenzoic acid UV absorbers; Anthranilic acid UV absorbers; Salicylic acid UV absorbers Agent: Cinnamic acid UV absorber ; Benzophenone UV absorber; Sugar UV absorber; 2- (2'-hydroxy-5'-t-octylphenyl) benzotriazole, 4-methoxy-4'-t-butyl UV absorbers such as dibenzoylmethane; lower alcohols such as ethanol and isopropanol; vitamin A or a derivative thereof; Vitamin B _{6 such as} vitamin B ₆ hydrochloride, vitamin B ₆ tripalmitate, vitamin B ₆ dioctanoate, vitamin B ₂ or a derivative thereof, vitamin B ₁₂ , vitamin B ₁₅ or a derivative thereof; α-tocopherol, β-tocopherol, γ -Vitamin E such as tocopherol and vitamin E acetate, vitamin D, vitamin H, pantothenic acid, panthetin, pyrroloquinoline quinone and the like; and antibacterial agents such as phenoxyethanol are preferred. Among these components, particularly preferred are those that are suitable for softening the skin, cause the loss of elasticity of collagen, suppress inflammation, and have an action of increasing the collagen production ability of fibroblasts. Specific ingredients such as glycyrrhetinic acid derivative, hypericum extract, royal jelly extract, cucumber extract, perennial extract, yarrow extract, mussel extract, mussel extract, pearl extract, soybean Extract, clove extract, bacmond extract, bumblebee extract, mulberry extract, birch extract, birch extract, rosemary extract, sage extract, ginseng extract, horse chestnut extract, oil-soluble licorice extract, vitamin E and Selected from its derivatives, arbutin, vitamin C and its derivatives and safflower extracts Than is. Preferred examples of the glycyrrhetinic acid derivative include esters of glycyrrhetinic acid such as stearyl glycyrrhetinic acid, and dipotassium glycyrrhizinate which is a salt of a glycoside of glycyrrhetinic acid. preferable. These can also be contained as an extract of licorice. It is preferable that the extract of hypericum contains at least 100 μM of farellol. The royal jelly extract 1) forms a single band in non-denaturing polyacrylamide gel electrophoresis of proteins in royal jelly, and 2) has a molecular weight measured by SDS-polyacrylamide gel electrophoresis under reducing conditions of about 5
It is preferable to contain 0.001 to 0.1% by mass of 7 kilodalton protein (see, for example, Patent Document 6) containing at least 9% by mass with respect to the total protein. The kujin extract preferably contains at least 0.001% by mass of the sophoraflavanone G containing at least 100 μM. It is preferable that the Achillea millefact contains 0.01 to 1% by mass of at least 100 μM centauridine. As a soybean extract, what hydrolyzed soybean protein and soybean isoflavone are preferable, and the preferable content of this component is 0.01-0.2 mass% in total. The mussel extract is preferably extracted from mussel scallop or string glycogen, and the content thereof is preferably 0.001 to 0.2% by mass. The clove extract preferably contains 0.1 to 1% by mass of eugenol, and preferably contains 0.01 to 0.3% by mass of such extract. It is preferable that Bacmondow contains 0.01-0.2 mass% of what contains 0.01-0.1 mass% of ophiopogonanone B. The birch extract preferably contains 200 μM or more of betulin or betulinic acid, and preferably contains 0.01 to 0.1% by mass of such extract. The horse chestnut extract is preferably a fruit extract, and it is preferable to contain 0.01 to 1% by mass of escin. The oil-soluble licorice preferably contains 0.01 to 0.1% by mass of globradine 0.01 to 1% by mass. The safflower extract should just contain a Casamin, and it is preferable to contain 0.01-0.2 mass% in conversion of a Casamin content. The rosemary preferably contains 0.001 to 0.1% by mass of rosmarinic acid. Vitamin C is preferably contained in an amount of 1 to 5% by mass, and arbutin or a salt thereof is preferably contained in an amount of 1 to 10% by mass. Furthermore, it is preferable to contain 0.1 to 1% by mass of cetyl palmitate in order to improve the feeling after use of the cosmetic and to allow the user to recognize the improvement in skin flexibility.

  The cosmetic of the present invention can be produced by treating the above components according to a conventional method. The cosmetic composition of the present invention thus obtained improves the softness of the skin by applying it, and has the effect of recovering hard, elastic skin that has become soft and soft. Excellent.

  Hereinafter, the present invention will be described in more detail with reference to examples, but it goes without saying that the present invention is not limited to such examples.

  In accordance with the formulation shown below, emulsion 1 (oil-in-water emulsifier form), which is a cosmetic of the present invention, was produced. That is, the components of A, B, C, D, E and F are heated to 80 ° C., and the dissolved A and B are mixed well, made uniform, cooled once, and then heated and dissolved again. I let you. This was diluted by adding c, and stirred uniformly, and this was added to d to prepare an oil phase. While the oil phase was kept at 80 ° C., the mixture was gradually added and emulsified while stirring, and the emulsion particles were adjusted with a homogenizer. This was stirred and cooled to obtain an emulsion 1 which is a cosmetic of the present invention. Similarly, Comparative Example 1 in which hydrogenated rapeseed oil was replaced with rapeseed oil (iodine number 120), Comparative Example 2 in which hydrogenated coconut oil (iodine number 32) was replaced, and Comparative Example 3 in which lysolecithin was replaced with stearic acid monoglyceride were also prepared. .

<Test Example 1>
The skin softening action was compared using the emulsion 1 and Comparative Examples 1-3. That is, 10 panelists per group, 40 people in total, were prepared, skin flexibility was measured with “Venustron” on Day 0, and then treated with each cosmetic twice a day in the morning and evening. After performing this operation continuously for 2 weeks, the skin softness was measured again with “Venustron”. A value (difference) obtained by subtracting the numerical value before the processing from the numerical value after the processing was obtained. The results are shown in Table 2. From this, it can be seen that a combination of hydrogenated rapeseed oil and phospholipid realizes an excellent action for improving skin flexibility.

  In the same manner as in Example 1, according to the following formulation, emulsions 2 to 2, which are the cosmetics of the present invention, were prepared. Table 4 shows the results of evaluation according to the method of Test Example 1. Phospholipids have the same effect as lysolecithin, but it can be seen that lysolecithin is particularly excellent in such action.

  The present invention can be applied to cosmetics that improve skin flexibility.

Claims (4)

An emulsifier-type cosmetic comprising 1) a hardened rapeseed oil, and 2) a phospholipid, wherein the content of the hardened rapeseed oil is 1 to 10% by mass, and the content of the rapeseed oil is phosphorus. Cosmetics characterized by content of lipid being 1-20 mass%. The cosmetic according to claim 1, wherein the phospholipid is hydroxylated lecithin. Precursed rapeseed oil and phospholipid are heated and dissolved in advance to produce a solvated complex, which is then diluted with a diluent composed of polar oil and previously dissolved in other oil phase components The cosmetic according to claim 1, wherein the cosmetic is prepared in addition to the mixture of The diluent according to any one of claims 1 to 3, wherein the diluent is an ester of alcohol selected from cetyl alcohol, glycerin, neopentyl glycol and pentaerythritol and 2-ethylhexanoic acid. Cosmetics .