JPH0774142B2 - Make-up cosmetics - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a makeup cosmetic composition in which a fine particle powder having a specific particle diameter and an aluminum powder or a stainless steel powder having a specific particle diameter are used in combination, and more specifically to a fine particle powder. A makeup makeup suitable for summer especially, which has an excellent ultraviolet cut effect and a cooling effect based on the infrared cut effect of aluminum powder or stainless steel powder, and further enhances the erythema suppressing effect by the synergistic action of both powder components. It is intended to provide a fee.

BACKGROUND ART Conventionally, summer cosmetics, especially makeup cosmetics, protect the skin from the intense UV rays in summer, and to prevent sunburn, various UV blocking agents such as para-aminobenzoic acid-based and cinnamic acid-based medium wavelength ( UV-B) Ultraviolet absorbers and ultraviolet scattering agents such as fine particles of titanium oxide, fine particles of zinc oxide and fine particles of iron oxide have been used. In recent years, long wavelength (UV-
A) Ultraviolet rays are also found to have a function of enhancing the erythema-inducing effect and the melanin-producing effect of UV-B. In order to prevent this, the aforementioned UV-
Techniques using a B ultraviolet absorber in combination with a benzophenone-based or dibenzoylmethane-based UV-A ultraviolet absorber have also been developed.

And, the fine particle powder having ultraviolet scattering ability such as fine particle titanium oxide, fine particle zinc oxide, and fine particle iron oxide among the above-mentioned ultraviolet ray blocking agents has a wide applicable ultraviolet wavelength region, and fine particle powder. Since it is a kind of white or colored pigment itself and is suitable as a powder component for cosmetics, it has been a typical powder component used in summer cosmetics, especially makeup cosmetics.

However, fine particle powder such as fine particle titanium oxide certainly cuts ultraviolet rays more specifically than ordinary titanium oxide (average particle diameter 0.1 to 0.7μ), and does not remain white, so-called thick makeup, and Although it has excellent characteristics of light elongation, on the other hand, the weak infrared cutoff effect of titanium oxide is further reduced by atomization, and it is very effective for hot feelings such as hot flashes and tingling, which are mainly caused by infrared rays. The weak depressant effect disappears.

Therefore, in order to satisfy the ultraviolet blocking effect and the cooling effect required for the summer cosmetics, generally, the usual titanium oxide and fine particle powder such as fine particle titanium oxide are used in combination. Since ordinary titanium oxide is inherently weak in the infrared cut effect, it is necessary to add a large amount of it in order to obtain a sufficient cooling sensation. However, there was a problem that the finish was thick makeup.

Therefore, in view of the problems in the previous period, the present inventors have earnestly studied to obtain a makeup cosmetic that has both an ultraviolet ray cutting effect and an infrared ray cutting effect, which are particularly suitable for summer use, and does not give a thick makeup and has a light elongation. As a result, a specific aluminum powder and a stainless steel powder have an excellent infrared ray cutting effect, and it is possible to achieve the above object without impairing the make-up effect by blending this with a fine particle powder having an ultraviolet scattering ability. It has been found that what is possible, and that when both are used in combination, it has a more excellent inhibitory effect on erythema induction originally caused by ultraviolet rays, and based on such findings, the present invention has been completed.

That is, the present invention has a mean particle size of 0.01 to 0.07 μm and a maximum particle size of 0.1 μm or less, and at least one fine particle powder selected from titanium oxide, zinc oxide, and iron oxide, and a mean particle size of 5 to 30 μm. In addition, the present invention relates to a make-up cosmetic composition, characterized in that it is blended with at least one kind of powder selected from a surface-treated aluminum powder having a maximum particle diameter of 50 μm or less and a stainless steel powder.

Hereinafter, the present invention will be described in detail.

The fine particle powder applied to the present invention has an average particle diameter of 0.01 to
It is 0.07μ and has a maximum particle size of 0.1μ or less, and examples thereof include fine particle titanium oxide, fine particle zinc oxide, and fine particle iron oxide.

When the particle size is larger than 0.1 μ, not only the ultraviolet scattering effect is lowered but also the elongation during use becomes heavy, which is not preferable. The fine titanium oxide particles are preferably rutile type, but anatase type can also be used. Similarly, the fine particle powder may be, for example, in the form of a disintegrating shape powder that is spherical and disintegrates into fine particles when applied, or in the form of a colored fine particle powder that is surface-treated with a metal oxide, a metal hydroxide or the like. It can also be used.

Further, in the present invention, better results can be obtained by using the hydrophobicized fine particle powder. That is, as seen in the example of fine particle titanium oxide, fine particle powder is generally excellent in the ultraviolet scattering effect, but has secondary weak points such as easy secondary aggregation and poor water resistance. Therefore, it is made hydrophobic. This helps overcome weaknesses.

The method of hydrophobizing itself is carried out by various methods known so far, for example, by treating the surface of the fine particle powder with a higher fatty acid or a water-soluble salt thereof, a metal soap, a higher fatty acid ester, and a hydrophobizing agent such as silicone oil. It is obtained by processing. Further, commercially available hydrophobized fine particle powder, for example, fine particle titanium oxide 100-S (manufactured by Teikoku Kako Co., Ltd.) may be used.

Here, the amount of the fine particle powder blended is selected in the range of 2 to 30% by weight, preferably 5 to 20% by weight, based on the entire cosmetic. If the blending amount is less than 2% by weight, the UV blocking effect is not sufficient, and conversely, if the blending amount is more than 30% by weight, the enhancing effect on the UV blocking effect is not seen and there is little need.

Next, the occluding agent surface-treated aluminum powder and stainless steel powder used in the present invention together with the fine particle powder will be described.

The surface-treated aluminum powder and stainless steel powder applied in the present invention each have an average particle size of 5 to 30.
Those with μ and maximum particle size of 50 μ or less are advantageously selected. If the particle size is smaller than 5μ, the infrared ray cut effect will be reduced and the elongation will be heavy. On the other hand, if it exceeds 50μ, the metallic luster of aluminum powder and stainless steel powder, that is, the brightness will be high, and the result will be glaring when applied to the skin. It becomes a state and is not desirable in appearance. The shape of the aluminum powder and the stainless steel powder may be flat, granular or spherical.

However, in the case of aluminum powder, it is generally highly reactive and is oxidized in the presence of oxygen in the air, water, etc. to cause a dark discoloration, impairing the tint of makeup cosmetics, and concerns regarding safety to the skin. Therefore, the aluminum powder whose surface is treated with a blocking agent such as fatty acids, oils and fats, waxes, hydrocarbons, esters and silicones is used.

For the same reason, the surface of the aluminum powder is a resin containing a pigment or a dye, such as polystyrene, polyethylene, polyacrylic acid, polymethacrylic acid, epoxy, or a metal oxide or hydroxide such as iron oxide or iron oxyoxide. Etc. can also be used as the occluding agent, and those coated with these can be blended in the cosmetic of the present invention.

The aluminum powder surface-treated with these occluding agents can be obtained from commercial sources. Examples of such a commercially available raw material include Alpaste P1 treated with resin acid.
100 (manufactured by Toyo Aluminum Co., Ltd.) and the like.

On the other hand, the stainless steel powder is roughly classified into a martensite type, a ferrite type, and an austenitic type according to its crystal structure, but any type thereof may be used.

However, due to the rust-free property, chromium content of 12% or more, such as SUS4, SUS24, SUS38 (above ferrite series), SUS
1, SUSU2, SUS3, SUS17 (above martensite type), SUS
Stainless steels such as 27, SUS28, SUS29, SUS33, SUS39 (above austenitic type) are advantageously used. Therefore, even if stainless steel is used, if there is still concern about the stainless steel such as SUS51 and other martensitic steels, surface treatment (including coating treatment) with various occluding agents is performed as with aluminum powder. Doing so may give good results.

Here, the above-mentioned aluminum powder and / or stainless steel powder for surface treatment of the occluding agent is used in a total amount with respect to the entire cosmetic.
It is compounded in the range of 0.2 to 20% by weight, preferably 0.5 to 10% by weight. If the blending amount is less than 0.2% by weight, the infrared blocking effect of the surface-treated aluminum powder or stainless steel powder for the occluding agent is not sufficiently exerted, and therefore the cooling effect cannot be expected. Glittering sensation derived from the metallic luster of the powder or the stainless steel powder appears strongly, and the makeup effect as a makeup cosmetic is reduced.

In the makeup cosmetics of the present invention, with respect to the components other than the above-mentioned fine particle powder and occluding agent surface-treated aluminum powder and / or stainless steel powder, all the raw materials usually used in cosmetics can be used. Furthermore, there are no restrictions on the manufacturing method. Examples of makeup cosmetics include foundation, eye color, blusher, powder powder, dusting powder, base emulsion and base cream.

In the present invention, by using the fine particle powder in combination with the surface-treated aluminum powder and / or the stainless steel powder of the occluding agent, a suitable makeup cosmetic for summer having both an ultraviolet ray cutting effect and an infrared ray cutting effect is obtained. To be
Further, by using both of them in combination, it is possible to obtain a more excellent erythema suppressing effect as compared with the case where only the fine particle powder is used alone. Therefore, in order to show the superiority of the makeup cosmetics of the present invention, the face powder and powder foundation of the present invention shown in Examples 1 and 2 (to be used in combination with fine particle powder and aluminum powder and / or stainless steel powder). Using the comparative face powder and powder foundation (only fine particle powder) shown in Comparative Examples 1-1 and 2 below, mechanical measurement comparison and sensory evaluation comparison of the infrared cut effect were performed. The evaluation method was according to the following method.

○ Mechanical measurement Take 1g of each material and use 10g of 4g castor oil and Hoover Mara.
It was treated 0 times and coated on a glass plate with a 0.5 mil doctor blade to prepare a standard product. This sample was irradiated with infrared rays under an infrared lamp (400 W) for 5 minutes, and the amount of infrared rays transmitted was counted by an infrared integrating luminometer (manufactured by Suga Test Instruments Co., Ltd.) for evaluation. The results are shown in Table-1.

○ Sensory evaluation Under fine weather (illuminance meter measurement value: ultraviolet 1600 counts / hour, infrared part 2100 counts / hour), 10 female panelists were used, and the powder foundations of Example 2 and Comparative Example 2 were applied to each half-face. (Blind method), asked for 10 minutes of sun exposure, and evaluated which one of them had less hot sensation such as hot flashes and tingling sensations.

As a result, all 10 panelists were the present invention products (Example 2).
It became clear that the powder foundation of No. 1 felt less hot.

Next, in order to evaluate the erythema suppressive enhancement effect, which is a major feature of the present invention, the effect on the minimum erythema value (MED) was measured using the powder foundations of Example 2 and Comparative Example 2 described below, and the SPF value was determined. It was As a measuring method,
Using 10 adult men as panelists, under the clear summer beach,
That is, 36 counts (energy amount: count x 0.) with an ultraviolet integrating illuminometer PH-11-VT (manufactured by Suga Test Instruments Co., Ltd.).
2mW ・ min / cm ² ) MED of each back
(Minutes) is measured in advance, and then the powder foundations of the samples (Example 2 and Comparative Example 2) are applied on the right and left sides of the back in the same amount, and then MED (minutes) at the time of applying the sample under the same ultraviolet energy amount. Was measured. The SPF value ^* was calculated according to the following formula, and the results are shown in Table-2.

Furthermore, in order to evaluate that the makeup cosmetics of the present invention are also excellent in cosmetic effect, a blind test was conducted using the face powders of Example 1 and Comparative Example 1-2 (using untreated aluminum powder) described below. A comparative test was conducted. That is,
Using 10 female specialized panelists, after applying the base material on the inner part of the left arm of the evaluation site, the inner part was divided into two parts, and the face powders of Example 1 and Comparative Example 1-2 were applied to each, and the following sensory evaluation was performed. It was evaluated according to the standard. The results are shown in Table-3.

As shown in the results of Table-1, sensory evaluation results, Table-2 and Table-3, the makeup cosmetic composition of the present invention is excellent in the infrared cut effect by the action of the surface-treated aluminum powder for the occluding agent and the stainless steel powder. It was clarified that the heat sensation was suppressed, and that the combined use of these powders and the fine particle powder remarkably enhanced the ultraviolet blocking effect as compared with the case of using the fine particle powder alone. Further, as for the aluminum powder, the use of the surface-treated occluding agent has a smooth feeling in use, has good adhesion to the skin, and does not cause dullness or the like even if pulverized, and has an excellent cosmetic effect. Became clear.

Examples and comparative examples of the present invention will be shown below. The mixing ratio is parts by weight.

Example 1 Face Powder (A) Fatty Acid Treated Fine Particles Titanium Oxide (Average Particle Diameter 0.04μ) 5 Talc 56.7 Sericite 25 Magnesium Carbonate 3 Kaolin 5 Silk Powder 2 Yellow Iron Oxide 0.3 Bengala 0.1 Ultramarine 0.1 Fatty Acid Treated Aluminum Powder (Average Particle size 25μ) 0.5 (B) Paraben 0.2 Squalane 2 Fragrance 0.1 (Method) Charge (A) in a Henschel mixer and stir and mix for 5 minutes. Then, it is roughly crushed by a take-out crusher.

Next, this was transferred to a Henschel mixer, (B) was added, and the mixture was stirred and mixed for 5 minutes, taken out, homogenized, and then filled in a container.

Comparative Example 1-1. Face Powder (A) Fatty Acid Treated Fine Particle Titanium Oxide (Average Particle Diameter 0.04μ) 5 Talc 57.2 Sericite 25 Magnesium Carbonate 3 Kaolin 5 Silk Powder 2 Yellow Iron Oxide 0.3 Bengala 0.1 Ultramarine 0.1 (B) Paraben 0.2 Squalane 2 fragrance 0.1 (method) The same procedure as in Example 1 was carried out.

Comparative Example 1-2. Face Powder (A) Fatty Acid Treated Fine Particle Titanium Oxide (Average Particle Size 0.04μ) 5 Talc 56.7 Sericite 25 Magnesium Carbonate 3 Kaolin 5 Silk Powder 2 Yellow Iron Oxide 0.3 Bengala 0.1 Ultramarine 0.1 Aluminum Powder (Average Particle Diameter 25 μ) 0.5 (B) Paraben 0.2 Squalane 2 Perfume 0.1 (Method) The same procedure as in Example 1 was carried out.

Example 2. Powder foundation (A) Fine particle titanium oxide treated with metallic soap (average particle size 0.06μ) 10 Talc 20 Sericite 35.7 Titanium mica 2 Titanium oxide 12 Aluminum stearate 2 Yellow iron oxide 4 Bengal 2 Ultramarine 1 Fatty acid treatment Aluminum powder (average particle size 20μ) 0.5 SUS33 powder (average particle size 18μ) 0.5 (B) Silicone oil 3 Squalane 7 Paraben 0.2 Perfume 0.1 (Method) (A) Charge into a Henschel mixer and stir and mix for 5 minutes. After that, it is taken out and crushed by a crusher. Then, this is transferred to a Henschel mixer, (B) is added, and the mixture is stirred and mixed for 7 minutes, and then taken out and ground with a grinder. This was filled in a medium plate and put in a container to obtain a product.

Comparative Example 2. Powder foundation (A) Fine particle titanium oxide treated with metallic soap (average particle size 0.06μ) 10 Talc 20 Sericite 36.7 Titanium mica 2 Titanium oxide 12 Aluminum stearate 2 Yellow iron oxide 4 Bengala 2 Ultramarine 1 (B ) Silicone oil 3 Squalane 7 Paraben 0.2 Perfume 0.1 (Method) The same procedure as in Example 2 was carried out.

Example 3. Powder Eye Color (A) Colored Fine Particles Titanium Oxide (Average Particle Size 0.05μ) 10 Fine Particle Iron Oxide (Average Particle Size 0.02μ) 2 Talc 15 Sericite 30.7 Mica Titanium 10 Colored Aluminum Powder (Average Particle Size 13μ) 8 SUS38 powder (average particle size 15 μ) 2 Yellow iron oxide 3 Ultramarine blue 2 Bengala 3 Aluminum stearate 2 (B) Silicone oil 3 Squalane 9 Paraben 0.2 Perfume 0.1 (Method) The same procedure as in Example 2 was carried out.

Example 4. Sunscreen base emulsion (A) Stearic acid 2 Glycerin monostearate 2 Behenyl alcohol 1 Silicone oil 5 SUS17 powder (average particle size 7μ) 0.5 (B) Paraben 0.1 POE lauryl ether 2 Sodium hydroxide 0.5 Propylene glycol 5 Fatty acid-treated fine particles Titanium oxide (average particle size 0.02μ) 13 Fatty acid-treated zinc oxide (average particle size 0.07μ) 2 Purified water 66.8 Perfume 0.1 (Method) (B) is dissolved and mixed at 80 ° C and 10 Disperse for minutes. Thereafter, (B) is added to (A) which has been dissolved and mixed at 80 ° C. in advance, and the mixture is emulsified. Then, it was cooled to 30 ° C., taken out and filled in a container to obtain a product.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Masaaki Horino 648 Yayoi-cho, Shizuoka-shi, Shizuoka Pola Chemical Industry Co., Ltd. (56) References JP 62-149613 (JP, A) JP 57- 120514 (JP, A) JP 58-62106 (JP, A) JP 60-231607 (JP, A)

Claims (3)

[Claims] 1. At least one fine particle powder selected from titanium oxide, zinc oxide, and iron oxide having an average particle diameter of 0.01 to 0.07 μm and a maximum particle diameter of 0.1 μm or less, and an average particle diameter of 5 to 30 μm. A make-up cosmetic composition, characterized in that it is blended with at least one kind of powder selected from surface-treated aluminum powder having a maximum particle diameter of 50 μm or less and stainless steel powder. 2. The makeup cosmetic composition according to claim 1, wherein the fine particle powder is a hydrophobized fine particle powder. 3. The compounding amount of the fine particle powder is 2 to 30% by weight, and the compounding amount of the powder selected from the surface-treated aluminum powder for occluding agent and the stainless steel powder is 0.2 to 20% by weight.
The make-up cosmetics according to claim 1.