JP2009126818A - Skin care cosmetic - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a skin care cosmetic which can improve the whiteness of skin perceived by a human without increasing the brightness of bare skin. <P>SOLUTION: The skin care cosmetic exhibits reflectance of a light having a wavelength of 650-700 nm of 65-100% and reflectance of a light having a wavelength of 400-450 nm of 10-20%. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a skin care cosmetic.

  A wide variety of whitening cosmetics are known, but there is a problem that it usually takes 3 to 6 months from the start of use until the effect is felt. In addition, skin care cosmetics containing a white color material such as titanium oxide have an effect immediately after use, but have the problem of unnatural whiteness because the brightness is increased from the bare skin.

On the other hand, in order to verify the effects of foundations and whitening cosmetics that match the skin color of the face, cosmetics stores and the like measure and diagnose skin color. At this time, examples of the device used include a color meter, a measuring instrument equivalent to the color meter, and a device obtained by improving an image photographing device such as a digital camera. By using a colorimeter and a measuring instrument that conforms to it, it is possible to measure indicators (L ^* , V, Y, etc.) related to the brightness and brightness of a narrow range of the face, and the whiteness of the skin color is obtained. It is done. In addition, when an apparatus having an improved image photographing apparatus such as a digital camera is used, indicators (L ^* , V, Y, etc.) related to the brightness and brightness averaged over the entire face can be measured. Is required.

However, the skin color perception mechanism is very special, and the measurement result by a colorimeter or the like may not match the human sense. This also applies to the whiteness of the skin color, and is well explained by the indicators (L ^* , Value, Y, etc.) relating to the brightness and brightness obtained by the colorimeter etc. It is empirically known that it cannot be performed (see Non-Patent Documents 1 to 4). However, skin care cosmetics that take this into account are not known.
Yoshikawa Takunobu et al., Influence of color on skin brightness evaluation -Evaluation analysis of skin and skin color chart-, Color Forum Japan 2005, Proceedings, p27-30 Shigehito Katsura et al., Influence of color on skin brightness evaluation-skin image evaluation analysis-, Color Forum Japan 2005, Proceedings, p31-34 Jin Jiang, et al., Influence of contrast on brightness perception of facial skin color, Color Forum JAPAN 2006, Proceedings, p23-26 Yoshikawa Takunobu et al., Influence of color on skin brightness evaluation -Effect of saturation and evaluation with uniform patches-, Color Forum JAPAN 2006, Proceedings, p27-30

  The present invention has been made in view of the above-described problems of the prior art, and an object of the present invention is to provide a skin care cosmetic capable of improving the whiteness of the skin color felt by humans without increasing the brightness from the bare skin. .

  In the skin care cosmetic, the reflectance of light having a wavelength of 650 nm to 700 nm is 65% to 100%, and the reflectance of light having a wavelength of 400 nm to 450 nm is 10%. It is characterized by being 20% or less.

  The invention according to claim 2 is characterized in that the skin care cosmetic according to claim 1 contains a red color material.

  According to a third aspect of the present invention, in the skin care cosmetic according to the second aspect, the red color material is contained in an amount of 0.01 wt% to 0.05 wt%.

  Invention of Claim 4 is an emulsion composition in the skin care cosmetics as described in any one of Claims 1 thru | or 3. It is characterized by the above-mentioned.

  ADVANTAGE OF THE INVENTION According to this invention, the skin care cosmetics which can improve the whiteness of the color of the skin which a human feels without raising the brightness from bare skin can be provided.

  Next, the best mode for carrying out the present invention will be described with reference to the drawings.

  The skin care cosmetic of the present invention has a reflectance of 65 to 100%, preferably 70 to 100% of light having a wavelength of 650 to 700 nm, and 10 to 20% of reflectance of light having a wavelength of 400 to 450 nm. , Preferably 12 to 18%. When the reflectance of light having a wavelength of 650 to 700 nm is less than 65% and when the reflectance of light having a wavelength of 400 nm to 450 nm is more than 20%, the effect of improving the whiteness of the skin color perceived by humans Cannot be obtained. In addition, when the reflectance of light having a wavelength of 400 nm or more and 450 nm or less is less than 10%, the whiteness of the skin that humans feel decreases. The reflectance is measured using CM-2600d (manufactured by Konica Minolta Sensing). When such a reddish skin care cosmetic is applied, the whiteness of the skin color felt by humans can be improved without increasing the brightness from the bare skin.

The skin care cosmetic of the present invention preferably contains a red color material. Note that red means XYZ, RGB, HVC, L ^* a ^* b ^* , spectral reflectance R (λ), various values calculated from these, and sensory evaluation, which are commonly used in chromatics. There is no particular limitation as long as it is a value that can uniquely represent the skin color such as an evaluation value obtained using the rating scale method.

  The red color material is not particularly limited, and pigments, dyes, pearl materials, gold fine particle colloids, and the like can be used. For example, Red 201, Red 202, Red 104 (1), Red 226 , Red 106, Red 227, Red 218, Red 223, Bengala (red iron oxide), Bengala-coated mica titanium, Bengala-coated silica, carmine, carmine-coated mica titanium, calsamine, gold having a particle size of 5 to 40 nm Examples include colloids.

  In the present invention, the content of the red color material in the skin care cosmetic is not particularly limited, but is preferably 0.01 to 0.05% by weight, particularly preferably 0.02 to 0.04% by weight. . If this content is less than 0.01% by weight, the effect of adding a red coloring material may not be obtained. If it exceeds 0.05% by weight, the whiteness of the skin color perceived by humans decreases. There are things to do.

  The skin care cosmetic of the present invention is an oily component, an ultraviolet absorber, a surfactant, a moisturizer, a thickener, an alcohol, a powder component, an aqueous component, within a range that does not impair the effect, in addition to the red color material. You may contain water, various skin nutrients, etc.

  Examples of the oil component include camellia oil, macadamia nut oil, olive oil, castor oil, safflower oil, soybean oil, tea seed oil, cocoa butter, coconut oil, hydrogenated palm oil, palm oil, owl, hydrogenated castor oil, beeswax, Natural oils such as candelilla wax, carnauba wax, lanolin, liquid lanolin, jojo wax, hard lanolin, polyoxyethylene lanolin alcohol ether, polyoxyethylene cholesterol ether, liquid paraffin, ozokerite, squalene, paraffin, ceresin, petrolatum, microcrystalline wax, etc. Hydrocarbon oils, isopropyl myristate, octyldodecyl myristate, isopropyl palmitate, cholesteryl 12-hydroxystearate, ethylene glycol di-2-ethylhexylate, dipe Synthetic oil components such as taerythritol fatty acid ester, pentaerythritol tetra-2-ethylhexylate, glycerin tri-2-ethylhexylate, trimethylolpropane triisostearate, cetyl-2-ethylhexanoate, castor oil fatty acid methyl ester, dimethyl Chain polysiloxane such as polysiloxane, methylphenylpolysiloxane, methylhydrogenpolysiloxane, cyclic polysiloxane such as decamethylpolysiloxane, dodecamethylpolysiloxane, tetramethyltetrahydrogenpolysiloxane, etc. to form a three-dimensional network structure And silicones such as silicone resin and silicone rubber.

  Examples of the ultraviolet absorber include benzoic acid-based ultraviolet rays such as paraaminobenzoic acid, paraaminobenzoic acid monoglycerin ester, ethyl N, N-dipropoxy-p-aminobenzoate, and ethyl N, N-dimethyl-p-aminobenzoate. Absorbents, anthranilic acid UV absorbers such as homomenthyl-N-acetylanthranilate, amyl salicylate, homomenthyl salicylate, octyl salicylate, phenyl salicylate, benzyl salicylate, salicylic acid UV absorbers such as p-isopropanol phenyl salicylate, octyl Cinnamate, ethyl-4-isopropylcinnamate, methyl-2,5-diisopropylcinnamate, ethyl-2,4-diisopropylcinnamate, propyl-p-methoxycinnamate, isoamyl-p Methoxycinnamate, octyl-p-methoxycinnamate (2-ethylhexyl-p-methoxycinnamate), 2-ethoxyethyl-p-methoxycinnamate, 2-ethylhexyl-α-cyano-β-phenylcinnamate, glyceryl mono Cinnamic acid-based ultraviolet absorbers such as 2-ethylhexanoyl-di-p-methoxycinnamate, 2,4-dihydroxybenzophenone, 2,2′-dihydroxy-4-methoxybenzophenone, 2,2 ′, 4,4 '-Tetrahydroxybenzophenone, 2-hydroxy-4-methoxybenzophenone, 2-hydroxy-4-methoxybenzophenone-5-sulfonate, 4-phenylbenzophenone, 2-ethylhexyl-4'-phenylbenzophenone-2-carboxylate, etc. Benzophenone UV absorber, 3- (4′-methylbenzylidene) -d, l-camphor, 3-benzylidene-d, l-camphor, urocanic acid, urocanic acid ethyl ester, 2,2′-hydroxy-5-methylphenylbenzo Triazole, 2- (2′-hydroxy-5′-t-octylphenyl) benzotriazole, dibenzalazine, dianisoylmethane, 4-methoxy-4′-t-butyldibenzoylmethane, 5- (3,3-dimethyl- 2-norbornylidene) -3-pentan-2-one, diethylhexylbutamide triazone, dimethicodiethylbenzalmalonate, 2-ethylhexyl-2-cyano-3,3-diphenyl acrylate, diethylaminohydroxybenzoylhexyl benzoate, Bisethylhexyloxyphenol Butoxy phenyl triazine, 2,4,6-tris [p - ((2'- ethylhexyl) oxycarbonyl) anilino] -1,3,5-triazine.

  Examples of the lipophilic nonionic surfactant include sorbitan monooleate, sorbitan monoisostearate, sorbitan monolaurate, sorbitan monopalmitate, sorbitan monostearate, sorbitan sesquioleate, penta-2-ethylhexyl acid Fatty acid esters of sorbitan such as diglycerol sorbitan, glycerol monostearate, glycerol oleate pyroglutamate, glycerol or polyglycerol fatty acid esters such as malate ester of glycerol monostearate, propylene glycol such as propylene glycol monostearate Fatty acid esters, hydrogenated castor oil derivatives, glycerin alkyl ethers and the like.

  Examples of the hydrophilic nonionic surfactant include polyoxyethylene sorbitan monooleate, polyoxyethylene sorbitan fatty acid esters such as polyoxyethylene sorbitan monostearate, polyoxyethylene sorbit monolaurate, polyoxyethylene Fatty acid esters of polyoxyethylene sorbit such as sorbit monooleate, polyoxyethylene sorbite monostearate, polyoxyethylene glycerin monostearate, polyoxyethylene glycerin monoisostearate, polyoxyethylene glycerin triisostearate Polyoxyethylene fatty acid ester such as polyoxyethylene glycerin fatty acid ester, polyoxyethylene monooleate, polyoxyethylene distearate , Polyoxyethylene alkyl ethers such as polyoxyethylene lauryl ether, polyoxyethylene oleyl ether, polyoxyethylene stearyl ether, polyoxyethylene (2-octyldodecyl) ether, polyoxyethylene cholestanol ether, polyoxyethylene octyl Polyoxyethylene alkylphenyl ethers such as phenyl ether, polyoxyethylene nonyl phenyl ether, polyoxyethylene dinonyl phenyl ether, pluronic surfactants such as pluronic, (polyoxyethylene polyoxypropylene) cetyl ether, (poly Oxyethylene polyoxypropylene) 2-decyl tetradecyl ether, (polyoxyethylene polyoxypropylene) butyl ether, hydrogenated Norin, polyoxyethylene polyoxypropylene alkyl ethers such as polyoxyethylene polyoxypropylene and glycerin ether, polyoxyethylene such as Tetronic or polyoxypropylene and ethylenediamine condensates, polyoxyethylene castor oil, poly Oxyethylene hydrogenated castor oil, polyoxyethylene hydrogenated castor oil monoisostearate, polyoxyethylene hydrogenated castor oil triisostearate, polyoxyethylene hydrogenated castor oil monopyroglutamate monoisostearate, polyoxyethylene hydrogenated castor oil maleate, etc. Of polyoxyethylene castor oil or polyoxyethylene hydrogenated castor oil, coconut oil fatty acid diethanolamide, lauric acid monoethanolamide, fatty acid isopropanolamide, etc. Alkanolamide, fatty acid ester of polyoxyethylene propylene glycol, alkylamine of polyoxyethylene, fatty acid amide of polyoxyethylene, fatty acid ester of sucrose, polyoxyethylene nonylphenol and formaldehyde condensate, alkylethoxydimethylamine oxide, Examples include trioleyl phosphate.

  Examples of the anionic surfactant include fatty acid soaps such as sodium laurate and sodium palmitate, salts of higher alkyl sulfates such as sodium lauryl sulfate and potassium lauryl sulfate, salts of polyoxyethylene lauryl sulfate and triethanolamine, Salts of alkyl ether sulfates such as sodium polyoxyethylene lauryl sulfate, N-acyl sarcosine acids such as sodium lauroyl sarcosine, N-myristoyl-N-methyl taurate sodium, coconut oil fatty acid methyl tauride sodium, lauryl methyl tauride sodium, etc. Higher fatty acid amide sulfonates, polyoxyethylene oleyl ether sodium phosphate, polyoxyethylene stearyl ether sodium phosphate and other phosphate ester salts, di-2-ethyl Sodium hexylsulfosuccinate, monolauroyl monoethanolamide polyoxyethylene sodium sulfosuccinate, sulfosuccinates such as sodium lauryl polypropylene glycol sulfosuccinate, alkylbenzene sulfonates such as sodium dodecylbenzenesulfonate, triethanolamine dodecylbenzene, N -Sodium salt of lauroyl glutamate, N-acyl glutamic acid such as disodium N-stearoyl glutamate, sulfate of higher fatty acid ester such as hydrogenated coconut oil fatty acid sodium glycerol sulfate, carboxylate of polyoxyethylene alkyl ether, α-olefin Sulfonate, sulfonate of higher fatty acid ester, salt of secondary alcohol sulfate, higher fatty acid alkylol Examples include amide sulfate salts, sodium lauroyl monoethanolamide succinate, N-palmitoyl aspartic acid, ditriethanolamine, coconut oil fatty acid collagen hydrolyzed alkali salts, and the like.

  Examples of the cationic surfactant include alkyltrimethylammonium salts such as stearyltrimethylammonium chloride and lauryltrimethylammonium chloride, dialkyldimethylammonium salts such as distearyldimethylammonium chloride, poly (N, N′-dimethyl-3, chloride), and the like. 5-methylenepiperidinium), alkyl pyridinium salts such as cetylpyridinium chloride, alkyl quaternary ammonium salts, alkyl dimethyl benzyl ammonium salts, alkyl isoquinolinium salts, dialkyl morpholinium salts, polyoxyethylene alkyl amines, alkyl amines Salt, fatty acid derivative of polyamine, fatty acid derivative of amyl alcohol, benzalkonium chloride, benzethonium chloride, cationic polymer, β-N, N-dimethyl-N-acrylate of acrylic acid Ruan ammonio ethyl chloride-vinyl pyrrolidone copolymer, and the like.

  Examples of amphoteric surfactants include 2-undecyl-N, N, N-tris (hydroxyethylcarboxymethyl) -2-imidazoline sodium, 2-cocoyl-2-imidazolinium hydroxide-1-carboxyethyloxydi Imidazoline-based amphoteric surfactants such as sodium, betaine-based amphoteric surfactants such as 2-heptadecyl-N-carboxymethyl-N-hydroxyethylimidazolinium betaine, lauryldimethylaminoacetic acid betaine, alkylbetaine, amide betaine, sulfobetaine Etc.

  Examples of the humectant include cholesteryl-12-hydroxystearate, sodium lactate, dl-pyrrolidone carboxylate, urea, diglycerin ethylene oxide / propylene oxide adduct, and the like.

  Examples of thickeners include gum arabic, carrageenan, gum tragacanth, quince seed (quince), casein, sodium caseinate, dextrin, gelatin, sodium alginate, methylcellulose, ethylcellulose, carboxymethylcellulose, hydroxyethylcellulose, hydroxypropylcellulose, polyvinyl alcohol, Examples include sodium polyacrylate, carboxyvinyl polymer, guar gum, xanthan gum, aluminum magnesium silicate, bentonite, hectorite and the like.

  Examples of the polyhydric alcohol include ethylene glycol, propylene glycol, dipropylene glycol, 1,3-butylene glycol, glycerin, erythritol, trimethylolpropane, pentaerythritol, sorbitol, maltitol, diglycerin, polyethylene glycol, and the like. . Examples of the higher alcohol include lauryl alcohol, stearyl alcohol, behenyl alcohol, myristyl alcohol, oleyl alcohol, cetostearyl alcohol, monostearyl glycerol ether (batyl alcohol), lanolin alcohol, cholesterol, phytosterol, isostearyl alcohol, octyldodecanol, and the like. Can be mentioned.

  Examples of the powder component include talc, kaolin, mica, sericite (sericite), phlogopite, synthetic mica, magnesium carbonate, calcium carbonate, aluminum silicate, silica, zeolite, barium sulfate, and calcined calcium sulfate (baked gypsum). , Calcium phosphate, fluorine apatite, hydroxyapatite, ceramic powder, metal soap (zinc myristate, calcium palmitate, aluminum stearate, etc.), inorganic powder such as boron nitride, polyamide resin powder (nylon powder), polyethylene powder, polymethacrylic acid Examples thereof include organic powders such as methyl powder, polystyrene powder, styrene-acrylic acid copolymer powder, polymethysil sesquioxane powder, and cellulose powder. Moreover, as a synthetic resin emulsion, an acrylic resin emulsion, a polyvinyl acetate resin emulsion, etc. are mentioned, for example.

  Amino acids include glycine, leucine, phenylalanine, tyrosine, aspartic acid, glutamic acid, sodium glutamate, arginine, histidine, lysine, cystine, cysteine, acyl sarcosine sodium (lauroyl sarcosine sodium), acyl glutamate, glutathione, pyrrolidone carboxylic acid, etc. Can be mentioned. Examples of the organic amine include monoethanolamine, diethanolamine, triethanolamine, morpholine, triisopropanolamine, 2-amino-2-methyl-1,3-propanediol, 2-amino-2-methyl-1- Examples include propanol.

  The skin care cosmetics of the present invention include other sequestering agents such as disodium edetate, trisodium edetate, sodium citrate, sodium polyphosphate, sodium metaphosphate, gluconic acid, caffeine, tannin, verapamil, tranexamic acid and Derivatives, licorice extract, glabrizine, hot water extract of fire thorn fruit, various herbal medicines, drugs such as tocopherol acetate, glycyrrhizic acid and its derivatives or salts thereof, vitamin C, magnesium ascorbate phosphate, kojic acid, etc. Other whitening agents, sugars such as glucose, fructose, mannose, sucrose, trehalose and the like can also be contained as appropriate.

  The skin care cosmetic of the present invention is not particularly limited as long as it is a cosmetic except for makeup use, and examples thereof include creams, ointments, gels, lotions, and emulsions.

  Emulsified compositions 0 to 5 were prepared with the composition shown in Table 1 (unit:% by weight) by changing the amount of red 202 added.

次に、女性の顔の左半分に、赤色２０２号を添加した乳化組成物１〜５を０．０１ｇ塗布し、女性の顔の右半分に、赤色２０２号を添加していない乳化組成物０を０．０１ｇ塗布した。さらに、一定の露出に固定したデジタルカメラで撮影した後、インクジェットプリンタで顔写真を印刷した。得られた顔写真を女性５名で評価し、女性の顔の左半分が右半分と比較して、肌の色が非常に黒い場合を１、黒い場合を２、やや黒い場合を３、同等である場合を４、やや白い場合を５、白い場合を６、非常に白い場合を７として、判定し、その平均値を求めた。評価結果を表２に示す。

Next, 0.01 g of the emulsified composition 1-5 added with red No. 202 was applied to the left half of the female face, and the emulsified composition 0 without added red No. 202 was applied to the right half of the female face. 0.01 g was applied. Furthermore, after photographing with a digital camera fixed at a constant exposure, a face photograph was printed with an inkjet printer. Evaluate the obtained face photo with 5 women, comparing the left half of the woman's face with the right half, 1 if the skin color is very black, 2 if it is black, 3 if it is slightly black The case of 4 was determined to be 4, the case of white to be 5, 5 to be white, and 7 to be very white, and the average value was obtained. The evaluation results are shown in Table 2.

表２から、乳化組成物１〜４を塗布すると、乳化組成物０を塗布した場合と同等以上に肌の色が白くなることがわかる。

From Table 2, it can be seen that when the emulsified compositions 1 to 4 are applied, the skin color becomes whiter than that when the emulsified composition 0 is applied.

  Moreover, after applying 0.01g of emulsified compositions 1-5 to the left half of a woman's face, the spectral colorimeter CM-2600d (made by Konica Minolta Sensing Co., Ltd.) was used for the brightness of the same part on the left and right sides of the face. And measured. Table 3 shows the measurement results.

表３から、乳化組成物１〜５を塗布しても、素肌から明度が上昇していないことがわかる。

From Table 3, it can be seen that even when the emulsified compositions 1 to 5 are applied, the brightness does not increase from the bare skin.

  In FIG. 1, the spectral reflectance of the emulsion compositions 1-5 is shown. The spectral reflectance was measured using a spectrocolorimeter CM-2600d (manufactured by Konica Minolta Sensing). From FIG. 1, the emulsion compositions 1 to 4 have a light reflectance of 65 to 100% at a wavelength of 650 to 700 nm and a light reflectance of 10 to 20% at a wavelength of 400 to 450 nm. Recognize.

It is a figure which shows the spectral reflectance of an emulsion composition.

Claims (4)

  A skin care cosmetic characterized in that the reflectance of light having a wavelength of 650 nm to 700 nm is 65% to 100% and the reflectance of light having a wavelength of 400 nm to 450 nm is 10% to 20%. .   The skin care cosmetic according to claim 1, comprising a red color material.   The skin care cosmetic according to claim 2, wherein the red colorant is contained in an amount of 0.01 wt% to 0.05 wt%.   The skin care cosmetic according to any one of claims 1 to 3, which is an emulsified composition.

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