JP5892739B2 - UV protection cosmetics - Google Patents

Description

The present invention relates to an ultraviolet protective cosmetic, and more particularly to an ultraviolet protective cosmetic that has a high ability to protect against ultraviolet rays in the A region and B region and provides a transparent natural finish.

In recent years, as an important function required for cosmetics, defense ability to ultraviolet rays can be mentioned up. The ultraviolet A wave of 320 nm to 400 nm and the ultraviolet B wave of 290 nm to 320 nm have arrived on the earth, and the ability to protect against ultraviolet rays in these two regions is required.

  As a means for imparting UV protection ability to cosmetics, so-called UV absorbers having absorption in the UV A region and the UV B region have been used for a long time. However, many of these ultraviolet absorbers are highly viscous oil agents, and have a problem that the usability is remarkably reduced when blended in cosmetics at a high concentration in order to obtain a high ultraviolet protection ability. Moreover, since the ultraviolet absorber absorbs ultraviolet rays and converts them into heat energy and vibration energy, it has a problem that it may adversely affect the skin.

  In order to solve these problems of the ultraviolet absorber, so-called inorganic oxide fine particles having a primary particle diameter of submicrons have been used. Fine zinc oxide is used to provide protection against the ultraviolet light in the A region, and fine particle titanium dioxide is used to provide protection against the ultraviolet light in the B region. The ability to protect against ultraviolet rays is given. (For example, see Patent Document 1 and Patent Document 2)

  However, since fine titanium dioxide has a strong blue shift caused by fine particles, these cosmetics have a problem of giving a pale and unnatural appearance when the cosmetic is applied on the skin. In order to solve these problems, cosmetics using an ultraviolet absorber and a fine particle inorganic oxide in combination (for example, see Patent Documents 3 and 4), fine powder of titanium dioxide and a powder whose reflection interference color is orange, yellow or gold. Cosmetics to be used in combination (see, for example, Patent Document 5) have been tried, but the effect is still not sufficient.

  Therefore, there has been a demand for an ultraviolet protective cosmetic that does not give a pale and unnatural appearance when applied on the skin, has a high ability to protect against ultraviolet rays in the area A and ultraviolet rays in the area B, and is excellent in use feeling during application. .

  In addition, it contains an ultraviolet absorber that absorbs ultraviolet rays in the region A, fine particle titanium dioxide, a composite powder having a specific hue and / or a powder dyed with an organic dye, and includes pigment grade titanium dioxide and iron oxide pigments. Cosmetics with a total content of less than a certain value do not give a pale, unnatural appearance when applied on the skin, and are highly protective against ultraviolet rays in the A and B regions, and feel when used. It was not known at all that it could be an excellent UV protection cosmetic.

JP 2008-208044 A JP 2009-155332 A JP 2007-145722 A JP 2010-222349 A JP 2000-319156 A

  An object of the present invention is to provide an ultraviolet protective cosmetic which does not give a pale and unnatural appearance when applied on the skin, has a high ability to protect against ultraviolet rays in both areas A and B, and is excellent in use feeling upon application. There is.

In view of such a situation, the present inventors do not give a pale and unnatural appearance when applied on the skin, have a high ability to protect against ultraviolet rays in both areas A and B, and have excellent usability when applied. As a result of earnest research for protective cosmetics, it contains an ultraviolet absorber that absorbs ultraviolet rays in area A, fine particle titanium dioxide, a composite powder having a specific hue and / or a powder dyed with an organic dye, and a pigment. The present inventors have found that a cosmetic having a total content of titanium dioxide and iron oxide pigments of a grade equal to or less than a certain value solves the problem, and has reached the present invention. That is, the present invention is as follows.
(1) From (a) to (c) below:
(a) UV absorber that absorbs UV in the UV-A region
(b) Fine particle titanium dioxide having a primary particle size of 10 to 60 nm
(c) The body pigment or the surface of the body treatment pigment whose surface is coated with an inorganic oxide is selected from the group consisting of a composite powder coated with iron oxide and a powder colored with an organic dye. One or two or more colored powders having a hue value of 10P to 5GY in a Munsell color system in a dry powder state, and an average particle size of 0.1 to 0.6 0-2 sum of content for the entire cosmetic composition of the pigment-grade iron oxide pigments and titanium dioxide are mu m (excluding composite powder of iron oxide was coated extender pigments or surface-treated body pigment) UV protective cosmetics characterized by being 0.0% by mass.
(2) The ultraviolet protective cosmetic according to (1), wherein the ultraviolet absorber that absorbs ultraviolet rays in the UV-A region is hexyl diethylaminohydroxybenzoyl benzoate and / or t-butylmethoxybenzoylmethane.
(3) The ultraviolet protective cosmetic according to (1) or (2), which is in the form of an oil-in-water emulsifier.

According to the present invention, there is provided an ultraviolet protective cosmetic that does not give a pale and unnatural appearance when applied on the skin, has a high ability to protect against ultraviolet rays in both areas A and B, and is excellent in use feeling during application. .

(1) Ultraviolet absorber that absorbs ultraviolet rays in the UV-A region of the present invention The ultraviolet protective cosmetic of the present invention is an ultraviolet absorber that absorbs ultraviolet rays in the UV-A region as an essential component (hereinafter referred to as UV-A absorber). Containing. Specific examples of such UV-A absorbers include 2-hydroxy-4-methoxybenzophenone, 2- (2′-hydroxy-5′-methylphenyl) benzotriazole, dimethoxybenzylidenedioxoimidazolidinepropionic acid. Examples thereof include compounds such as 2-ethylhexyl, bis (reslucinyl) triazine, methylenebisbenzotriazolyltetramethylbutylphenol, hexyl diethylaminohydroxybenzoylbenzoate, and t-butylmethoxybenzoylmethane. Of these, hexyl diethylaminohydroxybenzoyl benzoate and t-butylmethoxybenzoylmethane are particularly preferred because of their excellent ultraviolet absorbing ability. Since these compounds have commercial products, commercial products can be used as they are. Specific commercial products include “Ubinal A Plus Granular” (diethylaminohydroxybenzoyl hexyl benzoate manufactured by BASF) and “Pulsol 1789” (manufactured by t-butylmethoxybenzoylmethane DSM).

  The content of these UV-A absorbers is preferably 0.01 to 5.0% by mass, more preferably 0.1 to 3.0% by mass, based on the total amount of the UV protective cosmetic. If the content is lower than the lower limit, the protective effect against the ultraviolet rays in the A region may be insufficient, and if the content is higher than the upper limit, the protective effect against the ultraviolet rays in the A region reaches its peak even if the content is increased. When applying the coating material, the feeling of use such as elongation becomes heavy may occur, which is not preferable.

(2) Fine particle titanium dioxide of the present invention.
The ultraviolet protective cosmetic of the present invention contains fine particle titanium dioxide as an essential component. The fine particles herein refer to those having a primary particle diameter (according to electron microscope observation) in the range of about 10 to 60 nm. The surface of the fine particle titanium dioxide of the present invention may be coated with an inorganic compound such as silica or alumina, or an organic compound such as fatty acid metal soap or silicone. The fine particle titanium dioxide of the present invention can be prepared by a conventional method such as thermal decomposition in a gas phase such as titanium tetrachloride. However, since there are many commercially available products, the commercially available products can be used as they are. Specific examples of such commercially available products include “MTY-110M3S” (manufactured by Teika), “MTY-02” (manufactured by Teica), and “MT-100TV” (manufactured by Teica). , “MT-500HSA” (manufactured by Teika), “MT-100T” (manufactured by Teica), “MT-01” (manufactured by Teica), “MT-10EX” (Taika) , “MT-05” (manufactured by Teika), “MT-100Z” (manufactured by Teica), “MT-150EX” (manufactured by Teica), “MT-100AQ” (Taika ( "MT-100WP" (manufactured by Teika), "MT-100SA" (manufactured by Teica), "MT-500B" (manufactured by Teica), "MT-500SA" ( "Taca Co., Ltd.", "MT-600B" (Taika Co., Ltd.), "MT-50 "SAS" (manufactured by Teika Co., Ltd.), "Taipeke CR-50" (manufactured by Ishihara Sangyo Co., Ltd.), "Taipeke TTO-M-1" (manufactured by Ishihara Sangyo Co., Ltd.), "Taipeke TTO-V4" (Ishihara) Sangyo Co., Ltd.), "ST-455" (Titanium Industry Co., Ltd.), "STT-65C-S" (Titanium Industry Co., Ltd.), "STT-30EHS" (Titanium Industry Co., Ltd.) , “Bayer Titanium R-KB-1” (manufactured by Bayer) and the like. In the present invention, when the fine particle titanium dioxide is contained in the ultraviolet protective cosmetic, a step of dispersing the fine particle titanium dioxide in an oil agent in advance to form a paste and mixing the paste with other components constituting the ultraviolet protective cosmetic is taken. It is preferable. By taking such a process, it becomes possible to more uniformly contain the fine particle titanium dioxide in the ultraviolet protective cosmetic.

In the ultraviolet protective cosmetic of the present invention, the content of fine particle titanium dioxide is preferably 0.1 to 15.0% by mass, and 1.0 to 10.0% by mass with respect to the entire cosmetic. More preferred. When the content is lower than the lower limit, the protective effect against the ultraviolet ray in the B region may be insufficient. When the content is higher than the upper limit, the protective effect against the ultraviolet ray in the B region reaches its peak even if the content is increased. When a coating material is applied on the skin, a pale appearance may be conspicuous, which is not preferable.

Hereinafter, the manufacture example of the oil agent dispersion paste of fine particle titanium dioxide is shown.
<Production Example 1>
Particulate titanium dioxide “MT-100TV” (manufactured by Teika Co., Ltd.) 50 g, decamethylcyclopentasiloxane 56 g and sesquiisostearic acid sorbitan 4 g were placed in a coball mill (Shinko Pantech Co., Ltd.) and mixed and ground for 8 hours. A titanium dioxide paste 1 was obtained.

<Production Example 2>
The fine particles in Production Example 1 were replaced with “Taipaque TTO-M-1” (Ishihara Sangyo Co., Ltd.), and the same operation as in Production Example 1 was performed to obtain fine titanium dioxide paste 2.

(3) One or more colored powders selected from the group consisting of a composite powder containing iron oxide and a powder colored with an organic dye according to the present invention, and in a dry powder state, Munsell A colored powder having a hue value of 10P to 5GY in the color system.
The ultraviolet protective cosmetic of the present invention is one or more colored powders selected from the group consisting of a composite powder containing iron oxide and a powder colored with an organic pigment, and in a dry powder state, A colored powder having a hue value of 10P to 5GY in the Munsell color system is contained as an essential component.

As a composite powder containing iron oxide (hereinafter referred to as iron-based composite powder) having a hue value of 10P to 5GY in the Munsell color system in a dry powder state, talc, kaolin, mica, synthetic mica, seri Sites, extenders such as magnesium carbonate, calcium carbonate, or surface treated extender pigments whose surfaces are coated with inorganic oxides such as silica, titanium dioxide, and alumina, iron oxides such as bengara and yellow iron oxide A composite powder coated with is suitably exemplified. Moreover, the surface of these composite powders may be further coated with an inorganic compound such as silica or alumina, or an organic substance such as a fatty acid metal or silicone.

These iron-based composite powders are obtained by coating a predetermined substance or iron oxide on an extender pigment by a generally known coating method, but there are many commercial products, so these commercial products are used as they are. It is also possible to do. Specific examples of such commercially available products are “Coverleaf Yellow FC” (composite powder made by catalytic conversion of sericite coated with titanium dioxide with yellow iron oxide), “Dermalial Leaf N”. "(Composite powder coated with Bengala on sericite coated with titanium dioxide, manufactured by Catalytic Chemical Co., Ltd.)", "Dermalial Leaf J" (composite powder coated with Bengala-coated mica and further coated with silica) Co., Ltd.), “Coverleaf MF” (composite powder made by catalytic conversion Co., Ltd.) coated with mica coated with titanium dioxide and coated with alumina, “Cutleaf AV” (sericite, alumina Composite powder coated with a sintered product of titanium dioxide and bengara coated with Miyoshi Kasei) and the like.

Powders colored with organic dyes having a hue value in the Munsell color system of 10P to 5GY in the dry powder state (hereinafter referred to as organic colored powders) are inorganic powders such as silica and calcium silicate. Or organic powder such as nylon, polyethylene, acrylic resin, silicone resin, red 102, red 106, yellow 4, yellow 5 and their lakes, red 201, red 202, red 204, red Preferable examples are powders colored with organic pigments such as No. 226 and yellow 401. In addition, inorganic powders such as silica and calcium silicate to be colored, or organic powders such as nylon, polyethylene, acrylic resin, and silicone resin are spherical or fibrous in terms of the effect of reducing the pale appearance of fine particle titanium dioxide. It is preferable that

These organic colored powders are obtained by dyeing a predetermined inorganic powder or organic powder using a normal wet dyeing method, or mechanochemically combining a predetermined inorganic powder or organic powder and a predetermined organic dye. Although it is prepared by a manufacturing method such as bonding, since there are many commercially available products, these commercially available products can be used as they are. Specific examples of such commercially available products include “Igeta Fiber R226P” (a powder obtained by coloring nylon fibers having a well-shaped cross section with Red No. 226 (made by Cosmetics), “Igeta Fiber (R106 + V401). ) ”(Powder of nylon fibers having a well-shaped cross section colored with red No. 106 and purple No. 401 (made by Cosmeterias),“ silica beads R226 ”(composite containing red 226 in spherical silica) Powder "manufactured by Nikko Chemicals Co., Ltd.)," flow beads R226 "(composite powder whose surface of polyethylene powder is colored with red 226, manufactured by Sumitomo Seika Co., Ltd.), and the like.

In the ultraviolet protective cosmetic of the present invention, the content of one or more colored powders selected from the group consisting of iron-based composite powder and organic colored powder is the total amount of the ultraviolet protective cosmetic, It is preferable that it is 0.01 mass%-10.0 mass%, and it is more preferable that it is 0.1 mass%-5.0 mass%. If the content is lower than the lower limit, the pale appearance due to the fine particle titanium dioxide may be noticeable when the UV protective cosmetic is applied, and if the content is higher than the upper limit, the transparency of the cosmetic film when the UV protective cosmetic is applied may be noticeable. It may be damaged, resulting in an unnatural finish.

The production example of the organic colored powder of the present invention is shown below.
<Production Example 3> In a spherical nylon powder 1L magnetic alumina ball mill colored with yellow No. 401, 500 g of magnetic alumina balls having a diameter of 15 mm, 99.0 g of spherical nylon powder ("Toray Nylon SP500" manufactured by Toray Industries, Inc.), 1.0 g of yellow No. 401 (manufactured by Toyo Ink Co., Ltd.) was taken and mixed and ground for 12 hours to obtain composite powder 1 which is a spherical nylon powder colored with yellow No. 401.

<4> The ultraviolet protective cosmetic of the present invention.
The ultraviolet protective cosmetic of the present invention is one or more selected from the group consisting of an ultraviolet absorber that absorbs ultraviolet rays in the UV-A region, fine particle titanium dioxide, iron-based composite powder and organic colored powder. A colored powder, containing a colored powder having a hue value of 10P to 5GY in the Munsell color system as an essential component in a dry powder state, and a content of pigment grade titanium dioxide and an iron oxide pigment Is characterized by being 2.0 mass% or less with respect to the entire cosmetic.

Here, the pigment grade titanium dioxide in the ultraviolet protective cosmetic of the present invention means titanium dioxide having an average particle diameter of about 0.1 to 0.6 μm, which is usually used in cosmetics as a white pigment. Further, the iron oxide pigment means a bengara, yellow iron oxide, or black iron oxide pigment having an average particle diameter of about 0.1 to 2 μm and usually used in cosmetics.

Furthermore, the cosmetics of this invention can contain the arbitrary component normally used with cosmetics other than the said essential component in the range which does not impair the effect of invention. Such optional ingredients include, for example, macadamia nut oil, avocado oil, corn oil, olive oil, rapeseed oil, sesame oil, castor oil, safflower oil, cottonseed oil, jojoba oil, coconut oil, palm oil, liquid lanolin, hardened coconut oil, hardened Oil, molasses, hydrogenated castor oil, beeswax, candelilla wax, carnauba wax, botarou, lanolin, reduced lanolin, hard lanolin, jojoba oil, waxes, liquid paraffin, squalane, pristane, ozokerite, paraffin, ceresin, petrolatum, micro Hydrocarbons such as crystallin wax, oleic acid, isostearic acid, lauric acid, myristic acid, palmitic acid, higher fatty acids such as stearic acid, behenic acid, undecylenic acid, cetyl alcohol, stearyl alcohol, isostearyl High alcohols such as alcohol, behenyl alcohol, octyldodecanol, myristyl alcohol, cetostearyl alcohol, cetyl isooctanoate, isopropyl myristate, hexyldecyl isostearate, diisopropyl adipate, di-2-ethylhexyl sebacate, cetyl lactate, malic acid Diisostearyl, di-2-ethylhexanoic acid ethylene glycol, dicaprate neopentyl glycol, di-2-heptylundecanoic acid glycerin, tri-2-ethylhexanoic acid glycerin, tri-2-ethylhexanoic acid trimethylolpropane, tri Synthetic ester oils such as trimethylolpropane isostearate and pentane erythritol tetra-2-ethylhexanoate, dimethylpolysiloxane, methylphenylpolysiloxane Chain polysiloxanes such as xane and diphenylpolysiloxane, cyclic polysiloxanes such as octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, dodecamethylcyclohexanesiloxane, amino-modified polysiloxane, polyether-modified polysiloxane, alkyl-modified polysiloxane, Oil agents such as silicone oil such as modified polysiloxane such as fluorine-modified polysiloxane, anionic surfactants such as fatty acid soap (sodium laurate, sodium palmitate, etc.), potassium lauryl sulfate, triethanolamine ether of alkyl sulfate, chloride Cationic surfactants such as stearyltrimethylammonium, benzalkonium chloride, laurylamine oxide, imidazoline-based amphoteric surfactants (2-cocoyl-2-imidazo Linium hydroxide-1-carboxyethyloxy disodium salt, etc.), betaine surfactants (alkyl betaine, amide betaine, sulfobetaine, etc.), amphoteric surfactants such as acylmethyltaurine, sorbitan fatty acid esters (sorbitan) Monostearate, sorbitan sesquioleate, etc.), glycerin fatty acids (eg, glyceryl monostearate), propylene glycol fatty acid esters (eg, propylene glycol monostearate), hardened castor oil derivatives, glycerin alkyl ethers, POE sorbitan fatty acid esters (POE sorbitan monooleate, polyoxyethylene sorbitan monostearate, etc.), POE sorbite fatty acid esters (POE-sorbitol monolaurate, etc.), POE glycerin fatty acid ester (POE-glycerin monoisostearate, etc.), POE fatty acid esters (polyethylene glycol monooleate, POE distearate, etc.), POE alkyl ethers (POE2-octyldodecyl ether, etc.), POE alkyl phenyl ethers (POE nonylphenyl) Ethers, 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.), Nonionic surfactants such as sucrose fatty acid ester and alkyl glucoside, polyethylene glycol, glycerin, 1,3-butylene glycol, erythritol, sorbitol, xylitol, maltitol, propylene group Call, dipropylene glycol, diglycerin, isoprene glycol, 1,2-pentanediol, 2,4 - hexylene glycol, 1,2-hexanediol, polyhydric alcohols such as 1,2-octanediol, pyrrolidone carboxylic acid Moisturizing ingredients such as sodium, lactic acid, sodium lactate, guar gum, quince seed, carrageenan, galactan, gum arabic, pectin, mannan, starch, xanthan gum, curdlan, methylcellulose, hydroxyethylcellulose, carboxymethylcellulose, methylhydroxypropylcellulose, chondroitin sulfate , Dermatan sulfate, glycogen, heparan sulfate, hyaluronic acid, sodium hyaluronate, tragacanth gum, keratan sulfate, chondroitin, mucoitin sulfate, hyaluronan Roxyethyl guar gum, carboxymethyl guar gum, dextran, keratosulfuric acid, locust bean gum, succinoglucan, caronic acid, chitin, chitosan, carboxymethylchitin, agar, polyvinyl alcohol, polyvinylpyrrolidone, carboxyvinyl polymer, sodium polyacrylate, polyethylene Thickeners such as glycol and bentonite, surface may be treated, powders such as mica, talc, kaolin, synthetic mica, calcium carbonate, magnesium carbonate, silicic anhydride (silica), aluminum oxide, barium sulfate Surface treated, cobalt oxide, ultramarine, bituminous, zinc oxide inorganic pigments, surface treated, composite pigments such as iron oxide titanium dioxide sintered body, surface treated Good, mica titanium, fish phosphorus foil Pearl agents such as bismuth oxychloride, surface treated, finely divided zinc oxide, lake 202, red 228, red 226, yellow 4, blue 404, yellow Organic dyes such as 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, Red No. 204 , Polyethylene powder, polymethyl methacrylate, nylon powder, organic powders such as organopolysiloxane elastomers, lower alcohols such as ethanol and isopropanol, paraaminobenzoic acid UV absorbers, anthranilic acid UV absorbers, salicylic acid UV absorbers, B region UV absorbers such as cinnamic acid UV absorbers, vitamin A or its derivatives, vitamins Vitamin Bs such as hexahydrochloride, vitamin B6 tripalmitate, vitamin B6 dioctanoate, vitamin B2 or derivatives thereof, vitamin B12, vitamin B15 or derivatives thereof, α-tocopherol, β-tocopherol, γ-tocopherol, vitamin E acetate, etc. Vitamin E such as vitamin E, vitamin D, vitamin H, pantothenic acid, panthetin, pyrroloquinoline quinone and the like can be preferably exemplified.

Further, as the ultraviolet protective cosmetic of the present invention, powder cosmetics such as powder foundation, oily cosmetics such as oil gel, water-in-oil or oil-in-water emulsified cosmetics, and the form thereof is not particularly limited, In the summer when UV protection cosmetics are frequently used, a refreshing feeling of use is required. Therefore, emulsified cosmetics, particularly oil-in-water emulsified cosmetics are preferred.
The cosmetic of the present invention can be obtained by treating the above essential components and optional components by conventional methods.

  EXAMPLES Hereinafter, although this invention is demonstrated further in detail based on an Example, this invention is not limited to a following example.

<Examples 1-4, Comparative Examples 1-3>
According to the formulation shown in Table 1, a makeup base and a makeup base of Comparative Example, which are UV protection cosmetics of the present invention, were prepared. That is, component (a) was heated to 75 ° C. and mixed with stirring. Next, the component (b) was added to the component (a), and the mixture was stirred for 4 minutes at 5000 rpm using a disper while continuing the heating, so that the component (b) was uniformly dispersed in the component (a). Furthermore, the component (c) was heated to 75 ° C. and mixed with stirring, and while maintaining the temperature at 75 ° C., the component (c) was added to the mixture of the component (a) and the component (b) with stirring and emulsified. Then, it cooled to room temperature and obtained the makeup base. The numbers in Table 1 represent mass%.

＊１）「ユビナールＡプラス グラニュラー」（ＢＡＳＦ社製）
＊２）「パルソール１７８９」（ＤＳＭ社製）
＊３）「ソフトシェードDH」（味の素（株）製）
＊４）「チノソーブ M」（Ciba社製）

* 1) “Ubinar A Plus Granular” (BASF)
* 2) "Pulsole 1789" (DSM)
* 3) “Soft Shade DH” (Ajinomoto Co., Inc.)
* 4) “Chinosorb M” (Ciba)

<Test Example 1> Measurement of SPF value The SPF value when the makeup bases of Examples 1 to 4 and Comparative Examples 1 to 3 were applied was measured by the method of ISO 24444. The results are shown in Table 2.

<Test Example 2> Evaluation of PA Value The PA value when the makeup bases of Examples 1 to 4 and Comparative Examples 1 to 3 were applied was evaluated by the test method of JCiA1995PFA. The results are shown in Table 2.

<Test Example 3> Evaluation of the finish at the time of application Sensory evaluation on the finish when the makeup bases of Examples 1 to 4 and Comparative Examples 1 to 3 were applied by five skilled evaluators. Evaluation items and evaluation criteria are as follows. In the evaluation, an average value of 5 persons was obtained and used as a make-up base score. The results are shown in Table 2.
1) pale appearance when applied: not felt at all; 5, not felt; 4, cannot be said; 3 points , slightly felt; 2 points, quite felt; 1 point 2) bare skin feeling upon application: quite present; 5 4 points, can't say either; 3 points , almost none; 2 points, 1 not at all

表２の結果から、本発明の紫外線防御化粧料は、A領域及びB領域の紫外線の防御効果に優れ、かつ微粒子二酸化チタンよる塗布時の青白い外観を全く感じさせず、自然な素肌感ある仕上がりを与えることが証明された。
また、ジエチルアミノヒドロキシベンゾイル安息香酸ヘキシル、ｔ−ブチルメトキシベンゾイルメタンを含有させた場合は、ジメトキシベンジリデンジオキソイミダゾリジンプロピオン酸2−エチルヘキシル或いはメチレンビスベンゾトリアゾリルテトラメチルブチルフェノールを含有させた場合と比較して、半分の含有量で同等の紫外線防御効果を発揮しており、本発明の紫外線防御化粧料に用いるＵＶ−Ａ吸収剤としては、ジエチルアミノヒドロキシベンゾイル安息香酸ヘキシル、ｔ−ブチルメトキシベンゾイルメタンがより好ましいことが示された。

From the results of Table 2, the UV protective cosmetic of the present invention is excellent in the UV protection effect of the A region and B region, and does not feel the pale appearance when applied with fine particle titanium dioxide, and has a natural skin finish. Proven to give.
In addition, hexyl diethylaminohydroxybenzoylbenzoate and t-butylmethoxybenzoylmethane were compared with those containing 2-methoxyhexyl dimethoxybenzylidenedioxoimidazolidinepropionate or methylenebisbenzotriazolyltetramethylbutylphenol. Thus, the UV protection effect equivalent to the half content is exhibited, and hexyl diethylaminohydroxybenzoyl benzoate and t-butylmethoxybenzoylmethane are used as UV-A absorbers used in the UV protection cosmetic of the present invention. It was shown to be more preferable.

<Examples 5-8, Comparative Examples 4-6>
According to the formulation of Table 3, the sunscreen powder which is the ultraviolet protective cosmetic of the present invention and the sunscreen powder of the comparative example were prepared. That is, the components in Table 3 (a) were mixed with a Henschel mixer and then pulverized with a pulverizer. Then, while stirring this mixture again with a Henschel mixer, add the component (b), continue mixing, take out the resulting mixture from the Henschel mixer, grind it again with a pulverizer, and use a mold in the usual way In a semi-automatic press, the alumina pan was filled into a sunscreen powder.
The numbers in Table 3 represent mass%.

＊１）「ユビナールＡプラス グラニュラー」（ＢＡＳＦ社製）
＊２）「パルソール１７８９」（ＤＳＭ社製）
＊３）「ソフトシェードDH」（味の素（株）製）
＊４）「チノソーブ M」（Ciba社製）

* 1) “Ubinar A Plus Granular” (BASF)
* 2) "Pulsole 1789" (DSM)
* 3) “Soft Shade DH” (Ajinomoto Co., Inc.)
* 4) “Chinosorb M” (Ciba)

<Test Example 4> SPF value, PA value, sensory evaluation Test Examples 1 were used to evaluate the SPF value, PA value, and finish of the sunscreen powders obtained in Examples 5 to 8 and Comparative Examples 4 to 6. Performed in the same manner as ˜3. The results are shown in Table 4.

表４の結果から、本発明の紫外線防御化粧料が粉末化粧料においても、A領域及びB領域の紫外線の防御効果に優れ、かつ微粒子二酸化チタンよる塗布時の青白い外観を全く感じさせず、自然な素肌感ある仕上がりを与えることが証明された。
また、粉末化粧料においても、ジエチルアミノヒドロキシベンゾイル安息香酸ヘキシル、ｔ−ブチルメトキシベンゾイルメタンを含有させた場合は、ジメトキシベンジリデンジオキソイミダゾリジンプロピオン酸2−エチルヘキシル或いはメチレンビスベンゾトリアゾリルテトラメチルブチルフェノールを含有させた場合と比較して、半分の含有量で同等の紫外線防御効果を発揮しており、本発明の紫外線防御化粧料に用いるＵＶ−Ａ吸収剤としては、ジエチルアミノヒドロキシベンゾイル安息香酸ヘキシル、ｔ−ブチルメトキシベンゾイルメタンがより好ましいことが示された。

From the results shown in Table 4, the ultraviolet protective cosmetic of the present invention is excellent in the protective effect of ultraviolet rays in the A region and B region even in powdered cosmetics, and does not feel the pale appearance when applied with fine particle titanium dioxide. It was proved to give a smooth finish.
Also in powder cosmetics, when hexyl diethylaminohydroxybenzoyl benzoate and t-butylmethoxybenzoylmethane are contained, 2-methoxyhexyl dimethoxybenzylidene dioxoimidazolidine propionate or methylenebisbenzotriazolyl tetramethylbutylphenol is added. Compared with the case where it is contained, it exhibits an equivalent ultraviolet protection effect at a half content, and as a UV-A absorber used in the ultraviolet protection cosmetic of the present invention, hexyl diethylaminohydroxybenzoyl benzoate, t -Butylmethoxybenzoylmethane was shown to be more preferred.

  The present invention can be used for cosmetics and the like.

Claims (3)

The following (a) to (c):
(a) UV absorber that absorbs UV in the UV-A region
(b) Fine particle titanium dioxide having a primary particle size of 10 to 60 nm
(c) The body pigment or the surface of the body treatment pigment whose surface is coated with an inorganic oxide is selected from the group consisting of a composite powder coated with iron oxide and a powder colored with an organic dye. One or two or more colored powders having a hue value of 10P to 5GY in a Munsell color system in a dry powder state, and an average particle size of 0.1 to 0.6 0-2 sum of content for the entire cosmetic composition of the pigment-grade iron oxide pigments and titanium dioxide are mu m (excluding composite powder of iron oxide was coated extender pigments or surface-treated body pigment) UV protective cosmetics characterized by being 0.0% by mass. The ultraviolet protective cosmetic according to claim 1, wherein the ultraviolet absorber that absorbs ultraviolet rays in the UV-A region is hexyl diethylaminohydroxybenzoyl benzoate and / or t-butylmethoxybenzoylmethane. The ultraviolet protective cosmetic according to claim 1 or 2, which is in the form of an oil-in-water emulsifier.