JP6829568B2 - Cosmetic composition for skin color correction - Google Patents

Description

The present invention relates to a skin color correction cosmetic composition for making dark red to brown parts of the skin inconspicuous. In particular, the present invention relates to a skin color correction cosmetic composition for making dark red to brown parts such as spots, acne, freckles, and reddish faces on the skin inconspicuous and fascinating the skin to the original beautiful skin color.

In conventional cosmetics, dark areas such as stains and acne are covered with a mixture of a base having a large hiding power such as titanium dioxide and zinc oxide and a coloring material such as iron oxide to hide the dark areas of the skin. Was there. However, in such a method, since it adheres thickly to the skin, there is a problem that morphological troubles such as wrinkles and sagging of the skin are conspicuous, and there is no transparency, resulting in an unnatural finish. In addition, although it is possible to conceal defects such as dullness of the skin, there is a problem that the skin color looks unhealthy without a complexion because the amount of light transmitted to the inside of the skin is reduced. To solve these problems, instead of using the hiding power of the base, skin color adjustment that adjusts the dark part of the skin by using an interfering light substance that has a filtering effect on light of a specific wavelength. The method is being developed.

For example, Patent Documents 1 to 5 describe a composition for adjusting a skin color that makes a dark portion of the skin inconspicuous, and has a complementary color or a color gamut in the vicinity of the complementary color as transmitted light with respect to the color of the skin to be adjusted. A composition for adjusting skin color containing a substance is disclosed. FIG. 7 shows a schematic explanatory view illustrating the skin color adjusting method of the inventions disclosed in these patent documents. As shown in FIG. 7, the conventional invention is a method of coating a dark red portion with a substance 10 having red interference light to make the dark portion inconspicuous. The substance 10 having red interference light is obtained by coating the surface of a base material 30 such as mica with titanium dioxide with a predetermined film thickness, and when white light is incident (arrow A in the figure), it is used as reflected interference light. Light having a wavelength of yellow to red is reflected (arrow B'in the figure), and has an action of transmitting light having a wavelength of blue to green as transmitted interference light (arrow C'in the figure). By this action, the arrival of light having a wavelength of yellow to red is suppressed with respect to the dark color portion, so that the red color of the dark color portion becomes difficult to see. The blue to green transmitted interference light that reaches the skin is absorbed by the skin. According to this method, it is possible to make the dark red portion inconspicuous, but the effect is not sufficient because light having a wavelength of yellow to red is reflected as reflected interference light.

In addition, Patent Document 6 discloses a cosmetic additive containing an interference light substance colored with a red organic pigment. According to this document, the waveforms of the spectral reflectance curves of clean skin and damaged skin are compared, and by applying this cosmetic additive to damaged skin, the waveform of the spectral reflectance curve of beautiful skin is approached. It is disclosed that it will appear as a natural and healthy skin color without dullness. However, the interfering light substance colored with the red organic pigment has the effect of correcting a wide range (not partial) skin color uniformly discolored by an external stimulus such as ultraviolet rays to a healthy color, but is partial. The effect of making the skin color change inconspicuous was small.

Japanese Unexamined Patent Publication No. 8-81332 Japanese Unexamined Patent Publication No. 8-81333 Japanese Unexamined Patent Publication No. 8-81334 Japanese Unexamined Patent Publication No. 8-217638 Japanese Unexamined Patent Publication No. 2003-26537 Japanese Unexamined Patent Publication No. 2004-315426

An object of the present invention is to provide a skin color correction cosmetic composition that makes dark red to brown parts such as age spots and freckles on the skin inconspicuous.

As a result of diligent studies on the above problems, the inventor found that a skin color correction cosmetic composition containing a green interfering light substance having green reflected interfering light was used for dark red to brown parts such as stains and freckles. It has been found that these dark-colored portions become inconspicuous when applied to the skin having the above, and the present invention has been completed.
That is, the present invention is the following cosmetic composition for skin color correction.

The skin color correction cosmetic composition of the present invention is a skin color correction cosmetic composition for making dark red to brown parts of the skin inconspicuous, and is a green interfering light substance having green reflected interfering light. The content of the green interfering light substance is 0.02% by mass or more.

The green interference light substance contained in the skin color correction cosmetic composition of the present invention has an action of reflecting light having a green wavelength as reflected interference light and transmitting light having a yellow to red wavelength as transmitted interference light. Have. Therefore, when the skin color correction cosmetic composition of the present invention is applied to a dark red to brown color portion, transmitted interference light having a wavelength of yellow to red reaches the surface of the skin, and the dark red to brown color is obtained. Light of the wavelength corresponding to the part is reflected. Then, the light of the red to brown wavelength reflected from the skin surface is mixed with the green reflected interfering light reflected from the surface of the green interfering light substance, so that the saturation is lowered and the red to brown color is obtained. It has the effect of making it inconspicuous. Further, the color correction of the present invention has the effect of making the skin look naturally bright without lowering the brightness because the color is mixed by the additive color mixing of light.

Further, in one embodiment of the skin color correction cosmetic composition of the present invention, the green interference light substance comprises a base material and a refracting layer coated on the surface of the base material, and the optical film thickness of the refracting layer is provided. Is 122 to 150 nm, and has a physical film thickness of 1 μm or less.
According to this feature, since green reflected interference light and red to brown transmitted interference light are sufficiently generated, the present invention makes dark red to brown parts such as spots and freckles on the skin inconspicuous. The effect of can be more exerted.

Further, as one embodiment of the skin color correction cosmetic composition of the present invention, the green interfering light substance is characterized by including a green coloring layer in which the surface of the refracting layer is coated with a green coloring agent.
According to this feature, in addition to the effect of the present invention of making dark red to brown parts such as spots and freckles on the skin inconspicuous, the hue of dark red to brown parts is adjusted to be natural. It can be adjusted to a hue close to that of soft skin. Further, as compared with the case where the green pigment particles or the like are added separately from the green interfering light substance, the effect of suppressing the color transfer to the clothes due to the green pigment particles or the like is also obtained.

Further, one embodiment of the skin color correction cosmetic composition of the present invention is characterized in that the content of the green interfering light substance provided with the green coloring layer is 10% by mass or less.
According to this feature, in addition to the above effect, the effect of suppressing color transfer to clothes is further obtained.

The antiperspirant for armpits of the present invention is characterized by containing the above-mentioned cosmetic composition for skin color correction.
According to this antiperspirant for armpits, the effect of making the red-brown red-brown dark-colored portions such as stains on the armpits inconspicuous is achieved.

According to the present invention, it is possible to provide a skin color correction cosmetic composition that makes dark red to brown parts such as spots and freckles on the skin inconspicuous.

It is schematic explanatory drawing explaining the action of the green interference light substance when the skin color correction cosmetic composition of 1st Embodiment of this invention is applied to the dark color part of red to brown system. It is a schematic explanatory drawing which shows the structure of the green interference light substance contained in the skin color correction cosmetic composition of the 2nd Embodiment of this invention. As an example of the green interfering light substance contained in the skin color correction cosmetic composition of the second embodiment of the present invention, it is an electron micrograph of "Croisone Green" of BASF. FIG. 3 (A) is an electron micrograph of the entire thin plate-shaped particles taken from above, and FIG. 3 (B) is an electron micrograph of the surface of the thin plate-shaped particles enlarged. (C) is an electron micrograph of the side surface of the thin plate-shaped particles taken from an obliquely upward direction. It is a graph which shows the evaluation result about the effect of reducing the saturation of various interfering light substances applied to the red to brown stain model. It is a graph which shows the evaluation result about the hue adjustment effect of the green interference light substance coated with a green colorant. It is a graph which shows the result of the monitor test about the antiperspirant for armpit containing the skin color correction cosmetic composition of this invention. It is a schematic explanatory drawing explaining the skin color adjustment method using the conventional skin color adjustment composition.

Next, the best mode for carrying out the present invention will be described.
[Cosmetic composition for skin color correction]
The skin color correction cosmetic composition of the present invention is a skin color correction cosmetic composition for making dark red to brown parts of the skin inconspicuous, and is a green interfering light substance having green reflected interfering light. It is characterized by containing.

<Green interference light substance>
The green interference light substance is a substance that reflects light having a wavelength of green to yellow (490 nm to 600 nm) as reflected interference light and transmits light having a wavelength of red (600 nm to 750 nm) as transmitted interference light.

Examples of the green interfering light substance include titanium dioxide-coated mica, low-order titanium oxide-coated mica, zirconium oxide-coated mica, alumina-coated mica, iron oxide-coated mica, titanium dioxide-coated synthetic mica, low-order titanium oxide-coated synthetic mica, and oxidation. Zirconium-coated synthetic mica, alumina-coated synthetic mica, iron oxide-coated synthetic mica, titanium dioxide-coated alumina, low-order titanium oxide-coated alumina, zirconium oxide-coated alumina, iron oxide-coated alumina, titanium dioxide-coated glass flakes, low-order titanium oxide-coated glass Examples thereof include flakes, titanium oxide-coated glass flakes, alumina-coated glass flakes, iron oxide-coated glass flakes, interfering resin powder, fish phosphorus foil, or these substances coated with a colored organic / inorganic colorant.

The content of the green interference light substance in the skin color correction cosmetic composition of the present invention is 0.02% by mass or more. It is preferably 0.1% by mass or more, more preferably 0.5% by mass or more, still more preferably 0.8% by mass or more, and particularly preferably 1.2% by mass or more. By increasing the content of the green interfering light substance, the effect of the present invention of making dark red to brown parts such as spots inconspicuous can be more exerted.

The upper limit of the content of the green interfering light substance is preferably 80% by mass or less, more preferably 50% by mass or less, further preferably 25% by mass or less, and particularly preferably 10% by mass or less. Is. By setting the content of the green interference light substance to 80% by mass or less, a natural skin quality can be obtained.

FIG. 1 shows a schematic explanatory diagram illustrating the action of a green interference light substance when the skin color correction cosmetic composition of the first embodiment of the present invention is applied to a dark red to brown color portion. ..
As shown in FIG. 1, the green interference light substance 1a contained in the skin color correction cosmetic composition of the first embodiment is composed of a base material 3 and a refractive layer 2 coated on the surface thereof. When the skin color correction cosmetic composition of the present invention is applied to a dark red to brown portion, the dark red to brown portion is covered with the green interference light substance.

As described above, the green interfering light substance reflects light having a wavelength of green to yellow (490 nm to 600 nm) as reflected interfering light and transmits light having a red wavelength (600 nm to 750 nm) as transmitted interfering light, and thus is green. When white light is incident on the interfering light substance (arrow A in the figure), transmitted interfering light with wavelengths of yellow to red reaches the surface of the skin (arrow C in the figure) and reaches the dark red to brown part. Light of the corresponding wavelength is reflected (arrow D in the figure). Then, the red to brown wavelength light reflected from the skin surface is mixed with the green reflected interference light (arrow B in the figure) reflected from the surface of the green interference light substance, so that the saturation is lowered. It has the effect of making red to brown colors inconspicuous. Further, the color correction of the present invention has the effect of making the skin look naturally bright without lowering the brightness because the color is mixed by the additive color mixing of light.

The base material 3 is a substance that transmits transmitted interference light, and is, for example, thin plate-like particles made of an inorganic substance such as mica, synthetic mica, silica, alumina, or glass flakes, or a resin. The base material 3 is not an essential structure, and the inside of the refraction layer 2 may be an air layer. The thickness of the thin plate-shaped base material 3 is 50 to 1500 nm, and the size of the thin plate surface is 3 to 300 μm as the maximum diameter. When the thickness is 50 to 1500 nm, the transmitted interference light is sufficiently transmitted, so that the effect of mixing with the green reflected interference light and lowering the saturation can be further exhibited. Further, the transparency of the skin can be enhanced and a natural skin feeling can be obtained. Further, regarding the size of the thin plate surface, when the maximum diameter is increased, the scattered light (white) due to the edge is reduced, so that green reflection interference light can be emitted more. On the other hand, when the maximum diameter is reduced, the feeling of roughness is reduced and a smooth feel can be obtained.

The refractive layer 2 is a substance having a higher refractive index than the base material 3, and is, for example, a thin film layer made of anatase-type titanium dioxide, rutile-type titanium dioxide, zirconium oxide, iron oxide, or the like. The optical film thickness (reflected interference light) is preferably 122 nm to 150 nm, and more preferably 125 to 140 nm. This optical film thickness is a theoretical film thickness for generating light having a green wavelength (490 nm to 600 nm) as reflection interference light, and is 1/4 times or an odd number of times the green wavelength. .. The physical film thickness depends on the refractive index of the refractive index and is calculated by "optical film thickness / refractive index of the refractive index". That is, "(1/4 of the wavelength of green or an odd multiple thereof) / refractive index of the refractive index". The upper limit of the physical film thickness is preferably 1 μm or less, more preferably 500 nm or less, still more preferably 300 nm or less, and particularly preferably 200 nm or less. The lower limit is preferably 100 nm or more. By reducing the physical film thickness, the green reflected interference light becomes stronger, and the effect of the present invention can be more exerted.

Examples of the green interfering light substance 1a contained in the skin color correction cosmetic composition of the first embodiment include Flamenco Green of BASF, Timiron Silk Green of Merck, Timiron Super Green, Timiron Splendid Green, and Rona Flair Balance Green. , Topy Industries' Helios R10G, Helios R20G, Nippon Koken Kogyo's FANTASPEARL 1060GR, TWINCLEPEARL 450, TWINCLEPEARL 550, etc.

<Green interfering light substance with a green colored layer>
FIG. 2 is a schematic explanatory view showing the structure of the green interference light substance 1b contained in the skin color correction cosmetic composition of the second embodiment of the present invention.
As shown in FIG. 2, in the green interference light substance 1b of the second embodiment, the surface of the refractive layer 2 of the green interference light substance 1a of the first embodiment is coated with green pigment particles as a green colorant. It includes a green colored layer 4.

By coating the surface of the refracting layer 2 of the green interfering light substance with a green colorant, the hue of the dark red to brown portion can be adjusted to adjust the hue close to that of natural skin.
In addition, when a green colorant such as green pigment particles is added separately from the green interfering light substance, the fine particles such as pigments easily transfer color to clothes and come into contact with clothes like an antiperspirant for armpits. Could not be used for such cosmetics. However, by adhering the green colorant to the surface of the green interfering light substance of the present invention, there is also an effect that the color transfer of the green colorant to clothes is suppressed.

The green colorant is a substance having a maximum at 500 nm to 560 nm (wavelength of green light) in the spectral reflectance curve, and is, for example, inorganic pigment particles such as chromium oxide, viridian, and peacock, and organic substances such as chlorophyll. Colorants and the like can be mentioned. From the viewpoint of excellent storage stability against changes in color tone, it is preferable to use inorganic pigment particles as the green interference light substance. Further, a mixed colorant obtained by mixing Gardenia jasminoides blue pigment and Gardenia jasminoides may be used. A spectrophotometer CM-700d manufactured by Konica Minolta Co., Ltd. was used for the spectral reflectance measurement.

The content of the green colorant in the green interfering light substance is preferably 0 to 20% by mass, more preferably 1 to 15% by mass, and particularly preferably 3 to 13% by mass. Within this range, the effect of reducing the saturation due to the action of the green interfering light substance and the effect of adjusting the hue by the green colorant can be exhibited in a well-balanced manner.

When the green pigment particles are used as the green colorant, the particle size of the green pigment particles is preferably 1 to 500 nm, more preferably 5 to 300 nm, still more preferably 10 to 200 nm, and particularly. It is preferably 25 to 150 nm. Within this range, the effect of reducing the saturation due to the action of the green interfering light substance and the effect of adjusting the hue by the green colorant can be exhibited in a well-balanced manner.

Examples of the green interference light substance 1b contained in the skin color correction cosmetic composition of the second embodiment include BASF's Cloisone Green and Merck's Colorona Majestic Green.

FIG. 3 shows an electron micrograph of BASF's Cloisone Green as an example of the green interfering light substance 1b. In "Croisone Green", the surface of mica is coated with titanium dioxide having a physical thickness of 170 nm as a refracting layer, and the surface thereof is further coated with inorganic pigment particles of chromium oxide as a green coloring layer. Looking at FIG. 3 (B), it can be seen that fine particles are attached to the surface of "Croisone Green".

The content of the green interfering light substance provided with the green coloring layer in the skin color correction cosmetic composition of the present invention is preferably 10% by mass or less, more preferably 8% by mass or less, still more preferably 4% by mass. % Or less, particularly preferably 2.5% by mass or less. By setting the content of the green interfering light substance provided with the green coloring layer to 10% by mass or less, color transfer to clothes can be further suppressed. The lower limit of the content is the same as in the first embodiment.

In the skin color correction cosmetic composition of the present invention, a green interference light substance having a green coloring layer and a green interference light substance having no green coloring layer may be used in combination. If increasing the content of the green interfering light substance with the green coloring layer causes color transfer to clothes, a part of the content of the green interfering light substance having the green coloring layer is green. By replacing it with a green interfering light substance that does not have a colored layer, it is possible to suppress color transfer to clothes while maintaining the effect of reducing saturation.

<Other ingredients>
The skin color correction cosmetic composition of the present invention may contain other ingredients usually used in cosmetics, depending on the use such as a makeup base, foundation, control color, concealer, and antiperspirant. For example, inorganic pigments, polymer powders, oily raw materials, surfactants, moisturizers, thickeners, polymers, UV protection agents, antioxidants, antioxidant aids, metal ion sequestering agents, magnesium stearate, etc. Metal soap, whitening agent, anti-wrinkle agent, rough skin improving agent, acne agent, deodorant agent, refreshing agent, astringent agent, antibacterial agent, organic pigment, natural pigment, fragrance, vitamins, skin softening agent, etc. Be done.

Examples of the inorganic pigment include extender pigments, coloring pigments, white pigments and the like. In addition, an interference light substance that generates an interference color other than the above green interference light substance may be used.
The extender pigment is used to maintain the dosage form of the product, whereby the usability (extensibleness, adhesiveness) and gloss of the product can be adjusted. Specific examples thereof include mica, sericite, talc, kaolin, synthetic phlogopite, calcium carbonate, magnesium carbonate, silicic anhydride, aluminum oxide, barium sulfate and the like.
The coloring pigment adjusts the color tone of the product, and specific examples thereof include red iron oxide, yellow iron oxide, black iron oxide, chromium oxide, ultramarine blue, navy blue, and carbon black.
The white pigment has a role of adjusting the color tone of the product and also has a hiding power, and specific examples thereof include titanium dioxide, zinc oxide, bismuth oxychloride, and boron nitride.

Specific examples of the polymer powder include polyethylene powder, polymethylmethacrylate, polyethylene terephthalate / polymethylmethacrylate laminated powder, nylon powder, polyurethane powder, and silicone powder.

Examples of the oil-based raw material include fats and oils, waxes, hydrocarbons, higher fatty acids, higher alcohols, esters, silicone oil and the like. More specifically, the fats and oils include olive oil, camellia oil, macadamia nut oil, castor oil and the like, the waxes include carnauba wax, candelilla wax, jojoba oil, honey wax and lanolin, and the hydrocarbons include liquid paraffin and paraffin. , Vaseline, selecin, microcrystalin wax, squalane, etc. Higher fatty acids include lauric acid, myristic acid, palmitic acid, stearic acid, isostearic acid, etc. Higher alcohols include cetyl alcohol, stearyl alcohol, isostearyl alcohol, 2- Esters such as octyldodecanol include isopropyl myristate, 2-octyldodecyl myristate, cetyl 2-ethylhexanoate, diisostearyl malate and the like, and silicone oils include methylpolysiloxane, methylphenylpolysiloxane, and deca. Examples thereof include methylcyclopentasiloxane and highly polymerized methylpolysiloxane.

Examples of the surfactant include anionic surfactants, cationic surfactants, amphoteric surfactants, and nonionic surfactants. More specifically, examples of the anionic surfactant include higher fatty acid soap, alkyl sulfate ester salt, polyoxyalkyl ether sulfate salt, acyl N-methyltaurine salt, alkyl ether phosphoric acid ester salt, N-acyl amino acid salt and the like. Cationic surfactants include alkyltrimethylammonium chloride, dialkyldimethylammonium chloride, benzalkonium chloride, etc. Amphoteric surfactants include betaine alkyldimethylaminoacetate, betaine alkylamide propyldimethylaminoacetate, 2-alkyl-N- Examples of nonionic surfactants such as carboxymethyl-N-hydroxyethyl imidazolinium betaine include polyoxyethylene type, polyhydric alcohol ester type, ethylene oxide / propylene oxide block copolymer and the like.

Examples of the moisturizer include glycerin, propylene glycol, dipropylene glycol, 1,3-butylene glycol, polyethylene glycol, sorbitol, sodium lactate, 2-pyrrolidone-5-carboxylate, sodium hyaluronate and the like.

Examples of the thickener include quince seed gum, xanthan gum, sodium carboxymethyl cellulose, carboxyvinyl polymer and the like.

Examples of the polymers include polyvinyl alcohol, polyvinylpyrrolidone, nitrocellulose, high molecular weight silicone and the like.

Examples of the UV protective agent include UV absorbers such as benzophenone derivatives, paraaminobenzoic acid derivatives, methoxycinnamic acid derivatives and salicylic acid derivatives, and UV scattering agents such as fine particle titanium oxide, fine particle zinc oxide and fine particle iron oxide.

Examples of the antioxidant include tocopherols, BHT, gallic acid esters and the like. Examples of antioxidant aids include phosphoric acid, citric acid, ascorbic acid, maleic acid, malonic acid, succinic acid, fumaric acid, kephalin, hexametaphosphate, phytic acid, ethylenediaminetetraacetic acid (EDTA) and the like. Can be mentioned.

Examples of the sequestering agent include sodium ethylenediaminetetraacetate, phosphoric acid, citric acid, ascorbic acid, succinic acid, gluconic acid, sodium polyphosphate, sodium metaphosphate and the like.

Examples of the whitening agent include vitamin Cs, arbutin, kojic acid, ellagic acid, rucinol and the like.

Examples of the anti-wrinkle agent include retinoids (vitamins A), α-hydroxy acids and the like.

Examples of the rough skin improving agent include anti-inflammatory agents such as β-glycyrrhetinic acid, glycyrrhizic acid derivative (VII), allantoin, azulene, and hydrocortisone (VIII), and protease inhibitors.

Examples of acne drugs include sebum-suppressing components such as estradiol, estrone, ethynyl estradiol, and vitamin B6, keratin exfoliating / dissolving components such as sulfur, salicylic acid (X), and resorcin (XI), benzalkonium chloride, and benzethonium chloride. Examples thereof include bactericidal components such as halocarban and 2,4,4-trichloro-2-hydroxyphenol, and anti-inflammatory components such as glycyrrhizinic acid and glycyrrhetinic acid.

Examples of deodorant agents include antiperspirant components such as chlorohydroxyaluminum, aluminum chloride, allantoin chlorohydroxyaluminum, potassium aluminum sulfate, zinc oxide, zinc paraphenol sulfonate, silver-containing zeolite, alum, and baked alum, and benzalkonium chloride. Examples thereof include bactericidal components such as aluminum, benzethonium chloride, halocarban and chlorhexidine hydrochloride, deodorant components such as polyphenolic kakitannin and tea catechin, and antioxidant components such as thiotaurine, hypotaurine and tocopherol.

Examples of the refreshing agent include menthol (XII), camphor and the like.

Examples of the astringent include zinc oxide, zinc sulfate, allantoinhydroxyaluminum, aluminum chloride, aluminum sulfate, zinc sulfocarbonate, tannic acid, citric acid, lactic acid and the like.

Antibacterial agents include benzoic acid and its salts, salicylic acid and its salts, phenol, sorbic acid and its salts, dehydroacetic acid and its salts, paraben, chlorhexidine, hexachlorophenol, resorcin, isopropylmethylphenol, orthophenylphenol, chloride. Benzarkonium, chlorhexidine hydrochloride, chlorhexidine gluconate, alkylisoquinolinium bromide, trichlorocarbanilide, halocarban, photosensitizer 201, phenoxyethanol, triclosan, methylchloroisothiazolinone / methylisothiazolinone solution, bisabolol, Examples thereof include alkyldiaminoethylglycine hydrochloride, trichloro-salitylanilide, tribromo-salitylanilide, mercury-based compounds, formarin, white shavings, bithionol, boric acid / borosand, dichlorophenol, hexachlorophene, and salicylanilide halides.

<Dosage form / form>
The dosage form of the cosmetic composition for skin color correction of the present invention is not particularly limited, and is powdery, solid powder, oil-in-water emulsified, oil-in-oil emulsified, oily, or oily solid, depending on the intended use. The dosage form can be in the form of a shape, a multilayer, a gel, or the like.
Further, the form of the product is not particularly limited, and may be a powder type, a compact type, a stick type, a cream type, a milky lotion type, a roll-on type, an aerosol type, or a non-aerosol type.

<Use>
The skin color correction cosmetic composition of the present invention can be used for cosmetics for the purpose of making dark red to brown parts such as skin spots and freckles inconspicuous. The cosmetic for such a purpose may be applied to the entire skin or may be applied mainly to a dark red to brown color portion. Specifically, it can be used as a makeup base, foundation, loose powder, pressed powder, control color, concealer, and other cosmetics for correcting skin color. In addition, cosmetics such as hand creams, moisturizing creams, whitening creams, and sunscreen creams for the purpose of moisturizing and medicinal properties of the skin, and antiperspirants applied to the underarms, arms, forehead, neck, chest, back, etc. It can also be used in cosmetics for the purpose of preventing skin odors such as deodorants. The skin color correction cosmetic composition of the present invention is not applied to makeup products such as lipsticks, eyeliners, and eye shadows.

Hereinafter, the present invention will be specifically described with reference to Examples, but the technical scope of the present invention is not limited by these Examples.

[Evaluation of the desaturation effect of various interfering light substances]
The effect of reducing the saturation of stains was evaluated for the interference light substances that generate various interference colors shown below.
Red interference light substance: Titanium dioxide coated mica "Flamenco Red" (BASF)
Green Interfering Photomaterial 1: Titanium dioxide coated mica "Flamenco Green" (BASF)
Green Interfering Photomaterial 2: Chromium Oxide Mica Titanium "Kroizone Green" (BASF)
Blue interference light substance: Titanium dioxide coated mica "Flamenco Blue" (BASF)
Orange interfering light substance: Titanium dioxide-coated mica "Flamenco Orange" (BASF)

(Evaluation methods)
Apply 0.005 g of each interfering light substance to 3 x 3 cm ^{2 of} "Bioskin Plate (Stain Concentration 2-1)" manufactured by Beaulux Co., Ltd. using the tip of a finger, and apply "Spectrophotometer CM-700d" manufactured by Konica Minolta Co., Ltd. The color information was measured using. The obtained measured values were analyzed by Konica Minolta's color management software "CM-S100w SpectraMagic NX Ver.2.6", and the saturation was calculated. The results are shown in FIG.

As shown in FIG. 4, the saturation is 4.30 in the "stain density 2-1" to which the interference light substance is not applied, whereas the saturation is 1.70 in the case to which the green interference light substance 1 is applied. In the case where the green interference light substance 2 was applied, the value was 1.75, and the saturation was greatly reduced. On the other hand, the one coated with the red interference light substance was 3.40, the one coated with the blue interference light substance was 2.94, and the one coated with the orange interference light substance was 3.34, and the effect of reducing the saturation was small. It was.

The bioskin plate has various stain models according to the density of stains, and the saturation was measured for the stain models having "stain concentration 5-1" to "stain concentration 1-1" in order from the darkest one. As a result, "stain concentration 5-1" is 5.3, "stain concentration 4-1" is 5.5, "stain concentration 3-1" is 5.2, and "stain concentration 2-1" is 4.3. , "Stain concentration 1-1" was 4.0. Then, as a result of applying the above-mentioned green interference light substance 2 to each stain model and measuring the saturation in the same manner, it was confirmed that the saturation was significantly reduced in all the stain models.
Furthermore, when the effect of concealing stains was visually confirmed in each of these stain models (the evaluation method is the same as in Example 1 below), some light stains remained at "stain concentration 3-1" or higher. At "stain concentration 2-1" and "stain concentration 1-1", the stains were concealed to the extent that they were almost invisible. Therefore, it can be said that the skin color correction cosmetic composition of the present invention exerts an excellent concealing effect on spots having a saturation of 5.0 or less in red to brown spots.

[Evaluation based on the content of green interfering light substances]
(Examples 1 to 5, Comparative Example 1)
According to the formulation table shown in Table 1, a stick-type antiperspirant for armpits containing green interfering light substance 2 (chromium oxide-coated mica titanium “Kroizone Green”) was prepared.
The antiperspirant for armpits in each example was evaluated by the method shown below for the effect of concealing stains and the color transfer to clothes. The evaluation results are shown in the lower part of Table 1.

(Evaluation method of stain hiding effect)
The antiperspirant for armpits of each example was applied to a bioskin plate having a “stain concentration 2-1”, and a visual test was conducted by 10 panelists. As the evaluation criteria, each panelist selects either "high stain hiding effect" or "insufficient stain hiding effect" for the armpit antiperspirant in each example, and "stain hiding effect is high". When the number of panelists who answered was 9 or more, it was evaluated as "◎", when it was 7 or more, it was evaluated as "○", when it was 5 or more, it was evaluated as "△", and when it was 4 or less, it was evaluated as "×".

(Evaluation method of color transfer to clothes)
The antiperspirant for armpits of each example was applied under the armpits of one panelist, a white T-shirt was worn, the arm was shaken back and forth 50 times, and the color transfer to the T-shirt was visually evaluated. The evaluation criteria were as follows.
⊚: Color transfer is not a concern at all.
◯: Color transfer is hardly noticeable.
Δ: I am a little worried about color transfer.
×: I am worried about color transfer.

Looking at Table 1, when the green interfering light substance was 0.01% by mass, the effect of concealing stains was insufficient. On the other hand, as the content of the green interfering light substance 2 increased, the effect of concealing stains increased. Further, it was found that the green interfering light substance to which chromium oxide (green pigment particles) was attached suppressed the color transfer to clothes as the content decreased.

[Evaluation of hue adjustment effect of green interfering light substance]
The antiperspirant for armpits of Example 3 was applied to the armpits of 15 panelists. As for the application method, about 0.035 g of an antiperspirant for armpits was applied to the armpit portion 3 × 3 cm ² . The spectral reflectance was measured before and after applying the antiperspirant for armpits on the inside of the upper arm (original natural skin) and on the armpits. A spectrophotometer CM-700d manufactured by Konica Minolta Co., Ltd. was used for the spectral reflectance measurement. The results are shown in FIG.

Comparing the graphs of the inside of the upper arm portion and the armpit portion (before application) in FIG. 5, the spectral reflectance of the armpit portion is significantly reduced in the green to blue wavelength region (560 nm or less). On the other hand, by applying the skin color correction cosmetic composition of the present invention to the underarm portion, an increase in the spectral reflectance in the green to blue wavelength region was observed, and the graph was close to the inside of the upper arm portion. It is presumed that this is an effect obtained by the reflected interfering light of the green interfering light substance and the reflected light of the green wavelength from the green pigment particles.

[Monitor test]
The armpit antiperspirant of Example 3 and the armpit antiperspirant in which the green interfering light substance 2 of Example 3 was replaced with a red interfering light substance (flamenco red) were used for 7 days on 76 monitors. We asked them to do a questionnaire survey on the following questions. The results of the questionnaire are shown in FIG.
Contents of question:
"I would like to ask you about the sample product you used. Did you feel that the armpit looks beautiful by using this sample product?"
Answer column options:
"I felt", "I felt a little", "I can't say either", "I didn't feel much", "I didn't feel"

Looking at FIG. 6, 38.2% of the monitors applied the skin color correction cosmetic composition of the present invention and said that they "felt" or "slightly felt" that the armpits looked beautiful. On the other hand, when an antiperspirant for armpits containing a red interference light substance was applied, it was 20.8%, and the skin color correction cosmetic composition of the present invention containing a green interference light substance was superior to the conventional one. The effect was recognized.

[Prescription example]
Next, the formulation of the skin color correction cosmetic composition of the present invention applied to foundations, makeup bases, control colors, concealers, antiperspirants, deodorants, loose powders, pressed powders, sunscreens, hand creams, and moisturizing creams. An example of prescription is shown. However, these prescription examples do not limit the technical scope of the present invention.

(Prescription example 1)
An oil-in-water emulsified makeup base (milky lotion type) was prepared according to the following formulation.
Ingredient name Blended amount (mass%)
Liquid isoparaffin 2.20
Squalene 5.20
2-ethylhexyl paramethoxycinnamate 4.000
Macademia nut oil fatty acid phytosteryl 0.50
Behenyl alcohol 2.00
Degaglyceryl ventastearate 1.52
Hardened rapeseed oil 0.50
Stearoyl sodium lactate 0.48
Tocopherol 0.05
Chromium oxide coated mica titanium (green interfering light substance 2) 1.00
Titanium dioxide coated mica (green interfering light substance 1) 5.00
Synthetic sodium silicate / magnesium 0.50
Xanthan gum 0.20
Polyglycel monoisostearate 3.00
1,3-butylene glycol 8.00
Diglycerin 4.00
Phenoxyethanol 0.80
Purified water balance

(Prescription example 2)
A water-in-oil emulsified makeup base (milky lotion type) was prepared according to the following formulation.
Ingredient name Blended amount (mass%)
Chromium oxide coated mica titanium (green interfering light substance 2) 3.00
Acrylic-Silicone Graft Copolymer 20.00
Mineral oil 1.00
Decamethylcyclopentasiloxane 20.00
Squalene 5.00
N-lauroyl-L-glutamic acid di (phytostearyl 2-
Octildodecyl) 5.00
Behenyl alcohol 5.00
Polyoxyalkylene-modified organopolysiloxane 3.00
Sorbitan sesquioleate 1.00
Dipropylene glycol 2.00
Glycerin 2.00
Magnesium Ascorbic Acid Phosphate 1.00
Purified water balance

(Prescription example 3)
A foundation (compact type) was prepared with the following formulation.
Ingredient name Blended amount (mass%)
Chromium oxide coated mica titanium (green interfering light substance 2) 1.00
Talc 45.20
Sericite 22.00
Titanium dioxide 12.00
Silica 5.00
Phenoxyethanol 0.80
Mineral oil 5.00
Dimethyl Silicone 5.00
Sorbitan sesquiisostearate 2.00
Yellow iron oxide 1.50
Red iron oxide 0.30
Black iron oxide 0.20

(Prescription example 4)
A water-in-oil emulsified foundation (milky lotion type) was prepared according to the following formulation.
Ingredient name Blended amount (mass%)
Chromium oxide coated mica titanium (green interfering light substance 2) 4.00
Titanium dioxide coated mica (green interfering light substance 1) 5.00
Titanium dioxide 5.00
Yellow iron oxide 1.50
Red iron oxide 0.30
Black iron oxide 0.20
Decamethylcyclopentasiloxane 28.00
Didimethylpolysiloxane 3.00
Polyoxyalkylene-modified organopolysiloxane 2.00
1,3-butylene glycol 0.20
Phenoxyethanol 0.80
Ion-exchanged water balance

(Prescription example 5)
A water-in-oil emulsified foundation (stick type) was prepared according to the following formulation.
Ingredient name Blended amount (mass%)
Chromium oxide coated mica titanium (green interfering light substance 2) 3.00
Titanium dioxide coated mica (green interfering light substance 1) 7.00
Silicone treated talc 2.00
Silicone treated sericite 5.00
Silicone treated titanium dioxide 9.00
Silicone treated red iron oxide 0.40
Silicone treated iron oxide 2.00
Silicone treated black iron oxide 0.30
Spherical nylon powder 5.00
Decamethylcyclopentasiloxane 38.00
Polyethylene wax 10.00
Carnauba wax 1.00
Polyoxyalkylene modified organopolysiloxane 0.50
Sorbitan sesquiisostearate 1.50
Appropriate amount of fragrance 1,3-butylene glycol 4.00
Phenoxyethanol 0.80
Ion-exchanged water balance

(Prescription example 6)
A control color (stick type) was prepared according to the following formulation.
Ingredient name Blended amount (mass%)
Chromium oxide coated mica titanium (green interfering light substance 2) 5.00
Talc 2.00
Microcrystalline wax 4.00
Hydrogenated oil 0.60
Neopentyl glycol di-2-ethylhexanoate 10.00
Liquid paraffin 7.00
Polyoxyalkylene-modified organopolysiloxane 3.00
Sorbitan sesquioleate 1.50
Polyoxyethylene sorbitan monooleate 0.30
Propylene Glycol Dicaprate 5.00
Phenoxyethanol 0.30
Ethanol 12.00
Purified water balance

(Prescription example 7)
A concealer (stick type) was prepared according to the following formulation.
Ingredient name Blended amount (mass%)
Chromium oxide coated mica titanium (green interfering light substance 2) 5.00
Titanium dioxide coated mica (green interfering light substance 1) 2.00
Talc 6.75
Titanium dioxide 20.10.
Yellow iron oxide 4.00
Red iron oxide 1.10
Black iron oxide 0.80
Neopentyl glycol dioctanoate 26.85
Hardened castor oil 10.00
Lanolin 10.00
Ozokelite Wax 1.15
Candelilla wax 2.15
Microcrystalline wax 3.00
Polyethylene wax 6.55
Preservative 0.50
Fragrance 0.05

(Prescription example 8)
An antiperspirant (stick type) was prepared according to the following formulation.
Ingredient name Blended amount (mass%)
Chromium oxide coated mica titanium (green interfering light substance 2) 1.00
Chlorhydroxyaluminum 10.00
Grilled alum 5.00
Isopropylmethylphenol 0.10
Cyclopentasiloxane 27.45
Dimethicone 2.00
Stearyl alcohol 20.00
POP-Butyl Ether-1 20.00
Bismuth oxychloride 2.00
Plate-shaped alumina 1.00
Sorbitan sesquiisostearate 2.50
Hydrogenated castor oil 2.00
Microcrystalline wax 2.00
Menthol 0.30
Diisostearyl malate 1.00
Glycerin diisostearate 2.50
Butylated hydroxytoluene 0.05
Aluminum hydroxide 0.10
Titanium oxide 1.00

(Prescription example 9)
An antiperspirant (stick type) was prepared according to the following formulation.
Ingredient name Blended amount (mass%)
Titanium dioxide coated mica (green interfering light substance 1) 5.00
Chlorhydroxyaluminum 5.00
Benzalkonium chloride 5.00
Silver-containing zeolite 5.00
Isopropylmethylphenol 0.10
Cyclopentasiloxane 26.45
Dimethicone 2.00
Stearyl alcohol 18.00
POP-Butyl Ether-1 20.00
Boron Nitride 3.00
Sorbitan sesquiisostearate 2.50
Microcrystalline wax 3.00
Menthol 0.30
Diisostearyl malate 1.00
Glycerin diisostearate 2.50
Butylated hydroxytoluene 0.05
Aluminum hydroxide 0.10
Titanium oxide 1.00

(Prescription example 10)
An antiperspirant (stick type) was prepared according to the following formulation.
Ingredient name Blended amount (mass%)
Chromium oxide coated mica titanium (green interfering light substance 2) 0.50
Aluminum Zirconium Tetrachlorohydrex Glycine 20.00
Isopropyl palmitate 15.00
Hydrogenated castor oil 3.00
Cyclopentasiloxane 20.00
Polydecene 18.00
PEG-8 distearate 1.50
Stearyl alcohol 17.00
Fragrance 1.00
PPG-14 Butyl Ether Remaining

(Prescription example 11)
An antiperspirant (roll-on type) was prepared according to the following formulation.
Ingredient name Blended amount (mass%)
Chlorhydroxyaluminum 20.00
Chromium oxide coated mica titanium (green interfering light substance 2) 0.70
Fragrance 1.00
Dimethicone 0.50
Cetyl alcohol 2.50
Ceteares-30 1.25
Benzalkonium chloride 0.20
Water residue

(Prescription example 12)
An antiperspirant (aqueous / alcoholic roll-on type) was prepared according to the following formulation.
Ingredient name Blended amount (mass%)
Chlorhydroxyaluminum 20.00
Titanium dioxide coated mica (green interfering light substance 1) 0.70
Denatured alcohol 40.00
Hydroxyethyl cellulose 0.50
Fragrance 1.00
Benzalkonium chloride 0.20
Water residue

(Prescription example 13)
An antiperspirant (aerosol type) was prepared according to the following formulation.
Ingredient name Blended amount (mass%)
Chlorhydroxyaluminum 2.00
Chromium oxide coated mica titanium (green interfering light substance 2) 0.50
Stairalconium Bentonite 0.50
Isopropyl palmitate 2.50
Fragrance 1.00
Isobutane 85.00
Cyclopentasiloxane 0.50
Triethylcitrate 1.00
Cyclopentasiloxane balance

(Prescription example 14)
A deodorant (aerosol type) was prepared according to the following formulation.
Ingredient name Blended amount (mass%)
Triclosan 1.00
Chromium oxide coated mica titanium (green interfering light substance 2) 0.50
Fragrance 1.00
Isobutane 55.00
Denatured alcohol balance

(Prescription example 15)
A deodorant (stick type) was prepared according to the following formulation.
Ingredient name Blended amount (mass%)
Triclosan 1.00
Titanium dioxide coated mica (green interfering light substance 1) 1.00
EDTA 0.50
Glycerol 20.00
Propylene glycol 50.00
Sodium stearate 5.00
Stairless-100 1.00
Behenic acid 2.00
Fragrance 1.00
Sodium hydroxide Appropriate amount Modified alcohol balance

(Prescription example 16)
Presto powder was prepared according to the following formulation.
Ingredient name Blended amount (mass%)
Chromium oxide coated mica titanium (green interfering light substance 2) 1.00
Talc 70.00
Sericite 11.20
Spherical polystyrene 7.00
Liquid paraffin 7.00
Sorbitan monoisostearate 2.00
Celesin 1.00
Phenoxyethanol 0.80

(Prescription example 17)
Loose powder was prepared according to the following formulation.
Ingredient name Blended amount (mass%)
Chromium oxide coated mica titanium (green interfering light substance 2) 1.00
Talc 50.00
Sericite 41.20
Spherical polystyrene 7.00
Phenoxyethanol 0.80

(Prescription Example 18)
A sunscreen (stick type) was prepared according to the following formulation.
Ingredient name Blended amount (mass%)
Chromium oxide coated mica titanium (green interfering light substance 2) 3.00
Fine particle zinc oxide 8.00
Fine particle titanium oxide 3.00
Polyethylene wax 2.00
Ethylene propylene copolymer 9.00
Candelilla wax 1.00
Glyceryl tri2-ethylhexanoate Remaining amount Propylene glycol dicaprate 10.00
Di2-ethylhexyl succinate 5.00
Diglyceryl triisostearate 5.00
-2-ethylhexyl p-methoxycinnamic acid 5.00
2,4,6-trianilino-p- (carbo-2'-ethylhexyl 1'-oxy) -1,3,5-triazine 0.50
Dimethicone Copolyol Crosspolymer 30% Dimethicone Mixture 3.00
Decamethylcyclopentasiloxane 5.00
PEG-9 Polydimethylsiloxyethyl Dimethicone 0.10
Glycerin 2.00
1,3-butylene glycol 5.00
Methyl paraoxybenzoate 0.10
1,2-Pentanediol 0.10
Water 30.00
Fragrance 0.10

(Prescription example 19)
A hand cream was prepared according to the following formulation.
Ingredient name Blended amount (mass%)
Acrylic-Silicone Graft Copolymer 6.00
Polyester modified silicone 3.00
Urea 2.00
Vaseline 5.00
Mineral oil 10.00
Ethanol 10.00
Didimethylpolysiloxane 20.00
Chromium oxide coated mica titanium (green interfering light substance 2) 3.00
Phenoxyethanol 0.50
Methylparaben 0.20
Purified water balance

(Prescription example 20)
A moisturizing cream was prepared according to the following formulation.
Ingredient name Blended amount (mass%)
Chromium oxide coated mica titanium (green interfering light substance 2) 3.00
Vaseline 3.00
Glycerin 5.00
Salt 1.00
Glycine 1.00
1,3-butylene glycol 5.00
Mineral oil 5.00
Cetyl-2-ethylhexanoate 5.00
Pentaerythritol Tetra-2-ethylhexanoate 3.00
Methyl Phenyl Polysiloxane 3.00
Decamethylcyclopentasiloxane 10.00
Trefil E-505C 2.50
Aerosil R972 2.00
Silicon SC9450N 2.00
Vitamin E-acetate 3.00
Phenoxyethanol 0.50
Methylparaben 0.20
Perfume Appropriate amount Purified water balance

The skin color correction cosmetic composition of the present invention makes the dark red to brown parts such as spots and freckles on the skin inconspicuous, and makes the skin look beautiful without being damaged. It can be used as a material composition.
The skin color correction cosmetic composition of the present invention can be used as a foundation, makeup base, loose powder, pressed powder, control color, concealer, antiperspirant, deodorant and the like. It can also be used in skin cosmetics such as hand creams, moisturizing creams, whitening creams, and sunscreen creams.

Claims (5)

A skin color correction cosmetic composition for making dark red to brown areas of the skin inconspicuous.
Contains a green interference light substance (1b) having green reflection interference light,
The green interfering light substance (1b) includes a base material and a refracting layer coated on the surface of the base material, and the optical thickness of the refracting layer is 122 to 150 nm.
The green interfering light substance (1b) includes a green coloring layer in which the surface of the refracting layer is coated with a green coloring agent.
A cosmetic composition for skin color correction, wherein the content of the green interfering light substance (1b) is 0.02% by mass or more. Further, it contains a green interference light substance (1a) having green reflection interference light, and contains
The green interfering light substance (1a) includes a base material and a refracting layer coated on the surface of the base material, and the optical thickness of the refracting layer is 122 to 150 nm, and the green interfering light substance (1a). ) Is characterized by not containing a green colored layer,
The skin color correction cosmetic composition according to claim 1. Furthermore, it is characterized by containing an extender pigment, a coloring pigment or a white pigment.
The skin color correction cosmetic composition according to claim 1 or 2. The skin color correction cosmetic composition according to any one of claims 1 to 3 , wherein the content of the green interfering light substance (1b) is 10% by mass or less. An antiperspirant for armpits, which comprises the skin color correction cosmetic composition according to any one of claims 1 to 4.