KR102289867B1 - Silicone-free coated powder for cosmetics and cosmetics comprising thereof - Google Patents

Abstract

The present invention relates to a silicone pre-coating powder for cosmetics and cosmetics including the same, and more particularly, 96 to 98.5 wt% of the powder, 1 to 3 wt% of a first silicone pre-coating agent coated on the powder, and the powder 0.5 to 1% by weight of a second silicone pre-coating agent coated on the first silicone pre-coating agent is isopropyl titanium triisostearate, and the second silicone pre-coating agent is fatty acid or fatty alcohol characterized by being. According to the silicone-free coating powder for cosmetics of the present invention and cosmetics comprising the same, there are advantages in usability, skin protection effect, water repellency and dispersibility, excellent makeup durability, and preventing pigmentation from being deposited. .

Description

Silicone-free coated powder for cosmetics and cosmetics comprising the same

The present invention relates to a silicone-free coating powder for cosmetics and cosmetics comprising the same, and more particularly, to a cosmetic product that has excellent dispersibility, water repellency, color development and feeling to improve cosmetic durability and prevent pigmentation It relates to a silicone-free coating powder and cosmetics comprising the same.

In general, makeup base cosmetics are classified into base makeup cosmetics mainly applied to the face and point makeup cosmetics applied to eyes, eyebrows, and lips. Base makeup cosmetics formulated with powder, liquid, cream, or stick-type foundation are used to naturally and uniformly create a three-dimensional effect and volume or transparency of the entire face, and are used with eye shadow, mascara, eyeliner, or lipstick. The same point makeup cosmetics are used to create a three-dimensional effect and to make the impression stand out by giving color or shade locally. With the daily use of TVs and smartphones, the color tones of these makeup cosmetics have expanded in various ways, and almost the entire color wheel is being used today.

Conventionally, powders used in such cosmetics include inorganic powders such as talc, mica, sericite, kaolin, titanium dioxide, zinc oxide, and the like, and these are used as a mixture of two or more types or as a surface-modified powder with a modified surface.

Conventional cosmetic powders in which two or more of the above inorganic powders are mixed have poor adhesion to the skin and rise over time after application. Therefore, there is a disadvantage that the durability of makeup is poor and you have to apply correction makeup frequently.

In addition, the cosmetic surface-modified powder can be generally obtained by treating silicone, silane, lecithin, wax, amino acid, metal soap, etc. to improve skin performance. Among them, the most widely used are the methicone series and alkyl silane compounds. Although the siliconized compound and the alkyl silane compound have the advantages of excellent water repellency and lubricity, the lack of moisture in the skin acts as the biggest disadvantage, and shows certain limitations in improving the quality of makeup cosmetics. As a result, the inorganic powder to which the conventional surface modification method is applied has problems in moisturizing properties, skin compatibility, and persistence when actually applied to the skin, so it is not satisfactory enough, and there is a disadvantage in that it causes loss of sensitive skin or skin barrier.

Therefore, there is a demand for the development of a surface-modified powder that does not use silicone-based oil.

KR 10-2019-0020776 A KR 10-2019-0083558 A KR 10-0468439 B1

An object of the present invention is to coat the inorganic powder with the first silicone pre-coating agent and the second silicone pre-coating agent, while maintaining the performance of the inorganic powder as it is, and having a soft feeling, skin protection effect, excellent color development and excellent dispersibility. To provide a pre-coated powder and a cosmetic comprising the same.

The silicone pre-coating powder for cosmetics of the present invention for achieving the above object includes 96 to 98.5% by weight of the powder, 1 to 3% by weight of the first silicone pre-coating agent coated on the powder, and the powder coated on the powder 0.5 to 1% by weight of the second silicone pre-coating agent is included, the first silicone pre-coating agent is isopropyl titanium triisostearate, and the second silicone pre-coating agent is a fatty acid or a fatty alcohol do.

The fatty acid is at least one selected from the group consisting of myristic acid, lauric acid, palmitic acid, stearic acid and isostearic acid, and the fat The alcohol is characterized in that it is stearyl alcohol.

The particle shape of the powder is characterized in that any one of plate shape, spherical shape, needle shape, columnar shape and irregular shape.

The powder is at least one selected from the group consisting of kaolin, talc, mica, sericite, boron nitride, barium sulfate, plate-shaped alumina, titanium dioxide, zinc oxide, iron oxide, and two-phase powder in which the surface of mica is coated with titanium dioxide. characterized.

And the cosmetic according to the present invention, comprising the silicone-free coating powder described above, it is characterized in that it is a makeup base, foundation, BB cream, a stick-like product or a nighttime product.

According to the silicone-free coating powder for cosmetic use of the present invention and cosmetics comprising the same, the feeling of use, the skin protection effect, the water repellency, the color development and the dispersibility are excellent, the makeup durability is excellent, and the advantages of preventing pigmentation There is this.

1 is a photograph showing the results of Test Example 2 of the present invention.
2 to 4 are photographs showing the results of Test Example 3 of the present invention.
5 is a photograph showing the results of Test Example 4 of the present invention.

Hereinafter, the present invention will be described in detail.

The silicone pre-coating powder for cosmetics according to the present invention contains 96 to 98.5% by weight of the powder, 1 to 3% by weight of the first silicone pre-coating agent coated on the powder, and 0.5% by weight of the second silicone pre-coating agent coated on the powder It contains ~ 1% by weight, wherein the first silicone pre-coating agent is isopropyl titanium triisostearate (Isopropyl Titanium Trisisostearate), and the second silicone pre-coating agent is characterized in that the fatty acid or fatty alcohol.

That is, the present invention is by coating the first silicone pre-coating agent made of isopropyl titanium triisostearate and the second silicone pre-coating agent made of fatty acid or fatty alcohol on the powder, excellent feeling of use, skin protection effect, water repellency, color development power and dispersibility, as well as to improve makeup persistence and prevent pigmentation from being deposited.

Any of the powders can be used as long as they are conventionally used in makeup cosmetics, but preferably kaolin, talc, mica, sericite, boron nitride, barium sulfate, plate-shaped alumina, titanium dioxide, zinc oxide, iron oxide, and mica dioxide on the surface It may be at least one selected from the group consisting of titanium-coated two-phase powder. Here, the two-phase powder is specifically in a form in which 60 to 20% by weight of titanium dioxide is coated on the surface of 40 to 80% by weight of mica. In addition, these powders may have any one particle form of plate shape, spherical shape, needle shape, columnar shape and amorphous shape.

The first silicone pre-coating agent is preferably isopropyl titanium triisostearate. The isopropyl titanium triisostearate has the advantage of providing excellent spreadability like a cream when coating the powder. However, when such isopropyl titanium triisostearate is coated alone, there is a disadvantage in that dispersion stability and cosmetic durability are not sufficiently improved.

Therefore, the present invention is to improve the disadvantages such as dispersion stability and makeup durability when the first silicone pre-coating agent is used alone by coating the second silicone pre-coating agent together with the first silicone pre-coating agent, as well as water repellency , color development, and pigmentation problems are also remarkably improved.

As the second silicone-free coating agent, fatty acids or fatty alcohols may be used, and more specifically, the fatty acids include Myristic acid, Lauric acid, Palmitic acid, Stearic acid. ) and at least one selected from the group consisting of isostearic acid, as the fatty alcohol, stearyl alcohol may be used.

In the present invention, the mixing ratio of the coating powder is 96 to 98.5% by weight of the powder, 1-3% by weight of the first silicone pre-coating agent coated on the powder, and 0.5-1 to the second silicone pre-coating agent coated on the powder Preferably, the amount of the first silicone pre-coating agent is less than 1% by weight, the feeling of use is not good, and when it exceeds 3% by weight, it is excessive and the dispersion stability is not good, and the second silicone-free coating agent is If it is less than 0.5% by weight, its role is insignificant, and problems such as dispersion stability, makeup durability, and color development cannot be improved.

On the other hand, the silicone pre-coating powder for cosmetics according to the present invention is obtained by mixing the first silicone pre-coating agent and the second silicone pre-coating agent in the powder, and pulverizing and mixing it for 1-5 minutes at 500-1,000 rpm with a Henschel mixer or the like. After this, it can be manufactured by drying it at 100 to 150° C. for 3 to 6 hours, and since this method is common in the field to which this technology belongs, a detailed description thereof will be omitted. In addition, it is natural that the coating powder can be prepared by a method known in the field to which this technology belongs.

In addition, the particle size can be adjusted by further pulverizing the final dried powder. The particle diameter of the final coating powder may be about 0.01 to 50 μm, but it is natural that it may be appropriately adjusted according to the use of the powder in the final desired cosmetic.

And the coating powder according to the present invention can be applied to various makeup cosmetics.

That is, the cosmetic according to the present invention includes the above-mentioned silicone-free coating powder, and the form may be a makeup base, foundation, BB cream, a stick-like product or a nighttime product, and if the coating powder is included, the formulation according to the present invention Examples are not limiting.

Hereinafter, the present invention will be described in more detail through specific examples.

(Examples 1 to 3 and Comparative Examples 1 to 3)

A silicone-free coating powder was prepared at the mixing ratio shown in Table 1 below. The coating powder was prepared by mixing each component according to the mixing ratio, pulverizing and mixing for 3 minutes at 800 rpm with a Henschel mixer. Then, the obtained coating powder was dried at 120° C. for 5 hours with a dryer, and then pulverized to have a particle size of 0.2 μm.

Blending ratio of Examples 1 to 3 and Comparative Examples 1 to 3 (unit: wt%) Ingredient name Example 1 Example 2 Example 3 Comparative Example 1 Comparative Example 2 Comparative Example 3 red iron oxide 97 - - 98 - - black iron oxide - 98.5 - - 99 - yellow iron oxide - - 97 - - 98 Isopropyl Titanium
triisostearate 2 One 2 2 One 2 myristic acid One 0.5 One - - -

(Test Example 1)

The color clarity of Examples 1 to 3 and Comparative Examples 1 to 3 was evaluated.

The color clarity is measured by measuring the values of each L*, a*, and b* with a colorimeter (High-Qualty Colorimeter NR60CP) by putting each sample in a circular container with a diameter of 3cm, and the saturation according to Equation 1 below. The values were calculated. And the results are shown in Table 2 below.

[Equation 1]

Saturation value = (L* ² +a* ² +b* ² ) ^{1 /2}

Test Example 1 Results division Example 1 Example 2 Example 3 Comparative Example 1 Comparative Example 2 Comparative Example 3 L* 53.12 43.64 70.29 53.26 43.33 69.69 a* 21.87 -0.32 9.54 19.99 -0.25 8.47 b* 12.92 -1.49 30.53 11.35 -1.34 28.75 saturation value 59.37 43.66 77.22 58.05 43.35 75.86

As can be seen in Table 2, Example 1 according to the present invention has a high saturation value compared to Comparative Example 1, Example 2 is compared to Comparative Example 2, and Example 3 is higher than Comparative Example 3, respectively. As the value of L* a* b* of L* a* b* increased, it was confirmed that the color became clearer.

(Test Example 2)

The dispersion stability of Examples 1 to 3 and Comparative Examples 1 to 3 was evaluated.

The dispersion stability was evaluated by stirring 20 g of each sample with 90 g of Ehthylhexyl Palmitate and 90 g of Cetyl Ethylhexanoate and a vortex mix, and observing the appearance after 1 week. And the result is shown in FIG.

The dispersion stability is to confirm the degree of sedimentation of the pigment by visually observing the color of the oil layer. A large amount of pigment sedimentation means poor dispersibility, and a small amount of pigment sedimentation means good dispersibility.

1, Example 1 of the present invention is compared to Comparative Example 1 and Control 1, Example 2 is compared to Comparative Example 2 and Control 2, Example 3 is Comparative Example 3 and Control 3 It was confirmed that there was less sedimentation of the pigment than that, indicating excellent dispersion stability (uncoated red iron oxide was used as control 1, uncoated black iron oxide was used as control 2, and uncoated yellow iron oxide was used as control 3) .

(Test Example 3)

The feeling of use of Examples 1 to 3 and Comparative Examples 1 to 3 was evaluated.

The feeling of use was evaluated by measuring the coefficient of dynamic friction. The lower the coefficient of dynamic friction, the better the feeling of use, and the higher the coefficient of use, the worse the feeling of use.

The coefficient of kinetic friction was measured by using a dynamic friction coefficient tester (TO-170M) of 1 g of each sample with a vertical load of 2N. And the results are shown in Figures 2 to 4.

2 to 4, Example 1 according to the present invention is compared to Comparative Example 1 and Control 1, Example 2 is compared to Comparative Example 2 and Control 2, and Example 3 is Comparative Example 3 And it was confirmed that the coefficient of kinetic friction was lower than that of Control 3, and thus it was confirmed that the feeling of use was excellent (Uncoated red iron oxide as Control 1, uncoated black iron oxide as Control 2, and uncoated yellow iron oxide as Control 3 was used. ).

(Examples 4 to 6 and Comparative Examples 4 to 6)

A coating powder was prepared in the same manner as in Example 1 and Comparative Example 1, except that the type of the second silicone-free coating agent was different. That is, Example 4 and Comparative Example 4 used stearic acid instead of myristic acid, Example 5 and Comparative Example 5 used lauric acid instead of myristic acid, and Example 6 and Comparative Example 6 used myristic acid Instead, stearyl alcohol was used.

(Test Example 4)

In the same manner as in Test Example 2, dispersion stability of Examples 1 and 4 to 6 and Comparative Examples 1 and 4 to 6 was evaluated. And the result is shown in FIG.

As can be seen in the attached FIG. 5 , depending on the type of the second silicone pre-coating agent, that is, there is a slight difference in dispersion stability between the examples, but the second silicone pre-coating agent is used regardless of the type of the second silicone pre-coating agent It was confirmed that the dispersion stability was improved in all of the examples using the second silicone-free coating agent compared to the non-coated comparative examples and the control group (uncoated red iron oxide was used as a control group).

As can be seen through the Singgi test examples, it was confirmed that the coating powder according to the present invention significantly improved color clarity, dispersion stability and feeling of use by using the second silicone-free coating agent made of fatty acid or fatty alcohol.

In the above, the present invention has been described in detail only with respect to the described embodiments, but it is obvious to those skilled in the art that various changes and modifications are possible within the scope of the technical spirit of the present invention, and it is natural that such variations and modifications belong to the appended claims.

Claims (5)

96 to 98.5% by weight of the powder,
1 to 3% by weight of the first silicone-free coating agent coated on the powder;
0.5 to 1 wt% of a second silicone-free coating agent coated on the powder;
includes,
The first silicone pre-coating agent is isopropyl titanium triisostearate (Isopropyl Titanium Trisisostearate),
The second silicone-free coating agent is a silicone-free coating powder for cosmetics, characterized in that myristic acid (Myristic acid).
delete According to claim 1,
The particle shape of the powder is,
Silicone-free coating powder for cosmetics, characterized in that any one of plate shape, spherical shape, needle shape, columnar shape and irregular shape.
According to claim 1,
The powder is
Cosmetics, characterized in that it is at least one selected from the group consisting of kaolin, talc, mica, sericite, boron nitride, barium sulfate, plate-shaped alumina, titanium dioxide, zinc oxide, iron oxide, and two-phase powder in which the surface of mica is coated with titanium dioxide. Silicone-free coating powder for use.
It comprises the silicone-free coating powder of any one of claims 1, 3 and 4,
Cosmetics, characterized in that it is a makeup base, foundation, BB cream, a stick product, or a nighttime product.

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