KR20100055063A - Make-up cosmetic composition with good spreadability and natural look - Google Patents

Abstract

PURPOSE: A make-up cosmetic composition containing titanium dioxide is provided to prevent white cloudy phenomenon and to express natural make-up. CONSTITUTION: A make-up cosmetic composition comprises capsules containing 20-80 weight% of titanium dioxide. The capsule contains 1.0-40.0 weight% based on total weight of the composition. The particle diameter of the capsule is 200nm-3um. The particle diameter of titanium dioxide is 10-100 nm. The capsule further contains 0.1-30 weight% of ferric oxide. The composition is formulated in face powder, compact, powder foundation, two way cake, liquid foundation, cream foundation, or make-up base.

Description

Make-up cosmetic composition with good spreadability and natural look}

The present invention relates to a makeup cosmetic composition having a uniform coating surface with excellent spreadability without skin coarseness, including a capsule containing titanium dioxide, and also to a cosmetic composition containing iron oxide in a titanium dioxide capsule to improve the cloudiness. .

Conventional makeup cosmetics are composed of powder and oil, and are divided into face powder, compact, powder foundation, two-way cake, liquid foundation, cream foundation, makeup base and the like according to the composition ratio, formulation or purpose of use. Titanium dioxide is added to make up the make-up powder for the sun protection effect and coverage. Titanium dioxide is divided into titanium dioxide for sun protection and general titanium dioxide for coloring for the purpose of increasing the covering power. Titanium dioxide, which is used for UV protection, has a size of 10-200 nm in order to have ultraviolet protection. On the other hand, general titanium dioxide for coloring has a size of 200 ~ 350nm or more, and has little UV blocking ability, but excellent hiding power, it is used for the purpose of covering color uneven parts such as blemishes, freckles and erythema of the skin.

These titanium dioxides contain transition metals, which can have an electrical charge and are easily aggregated, so that the raw materials easily aggregate together. This not only produces white tees in the formulation, but is also difficult to apply and has an irregular coating surface. In addition, the high light reflectance in the visible light region causes the unintended white to rise strongly after applying the product to the skin, causing so-called white clouding phenomenon.

Accordingly, the present inventors have studied makeup cosmetics that can spread the skin uniformly while having good spreading properties, and can exhibit a natural makeup effect because the white color does not come up strongly. As a result, the makeup composition containing particles that encapsulate titanium dioxide into a sphere has a skin It has been found that not only can be uniformly applied when applied to the coating, but also the spherical shape of the exterior can cause diffuse reflection and brighten at the same time, and can exhibit a natural makeup effect. In addition, when the capsule contains iron oxide, it was found that the white turbid phenomena significantly improved after the existing makeup, and completed the present invention based on this.

Therefore, an object of the present invention is to provide a makeup cosmetic composition having a good spreadability and a natural cosmetic effect using a titanium dioxide capsule.

In order to achieve the above object, the present invention provides a makeup cosmetic composition comprising a capsule containing titanium dioxide.

The titanium dioxide is contained in an amount of 20 to 80% by weight based on the total weight of the capsule, the capsule is contained in an amount of 1.0 to 40.0% by weight based on the total weight of the composition.

In addition, the cosmetic composition of the present invention may further contain iron oxide in the capsule.

The makeup cosmetic composition of the present invention increases the spreadability by using a spherical titanium dioxide capsule instead of the existing strong titanium dioxide, which enables uniform application, and natural cosmetic effects are possible due to the spherical appearance. In addition, when the titanium dioxide capsule is contained iron oxide it can greatly improve the clouding phenomenon.

The makeup cosmetic composition of the present invention uses a capsule containing titanium dioxide, and may further contain iron oxide in the capsule.

Hereinafter, the present invention will be described in detail.

The present invention can provide a makeup cosmetic composition having good spreadability and uniform application by using a capsule containing titanium dioxide. In order to encapsulate titanium dioxide, shell material, which is a wrapping material, is dissolved in a volatile solvent, and then titanium dioxide, which is a core material, to be dispersed is added thereto, and a homomixer is used to make cosmetics. Titanium dioxide is encapsulated through spray drying while mixing. In this case, in the step of mixing the shell material with the volatile solvent, the shell material is used in 10 to 50% by weight, the volatile solvent is used by mixing in 50 to 90% by weight. When the shell material is less than 10% by weight, it is difficult to encapsulate titanium dioxide, and when the shell material is more than 50% by weight, the content of the shell material is increased in the titanium dioxide capsule, which is a final product, so that it is difficult to give brightness due to titanium dioxide. In addition, the titanium dioxide is preferably 20 to 80% by weight of the total weight of the titanium dioxide capsule after volatilizing the final volatile solvent.

The shell material is a copolymer of (meth) acrylic acid and (meth) acrylic acid alkyl ester, or mixtures thereof, or cellulose derivatives, preferably cellulose acetates, cellulose phthalates, cellulose succinates and mixtures thereof Or vegetable waxes taken as a mixture of themselves or with each other, or cured vegetable oils taken as a mixture of themselves or with each other, or mono- and / or di- and / or triesters of glycerol and at least one fatty acid Or mixtures of monoesters, diesters and triesters of glycerol and at least one fatty acid, or at least one member selected from the group consisting of polyurethane, silicone and polymethylmethacrylate. The shell material for encapsulation is a material for encapsulating titanium dioxide, which uniformly disperses titanium dioxide, which is easily entangled with each other, in a solvent, thereby crystallizing the titanium dioxide evenly in the formulation to increase the spreadability of the powder. do.

In addition, the volatile solvent used in the present invention is volatilized during the dry spraying process, but is not included in the final product, so that the shell material can be dissolved to make a uniform capsule. In the present invention, acetone is used as a volatile material, but the shell material to be used can be dissolved, and a material that can be volatilized is selected, and purified water, ethanol, and the like can be used.

The capsule containing titanium dioxide used in the present invention is included in an amount of 1.0 to 40.0% by weight based on the total weight of the composition. In addition, the titanium dioxide in the capsule is preferably contained in an amount of 20 to 80% by weight relative to the total weight of the capsule. If it is less than 20% by weight, it is difficult to give brightness, and as the amount of shell material added for encapsulation increases, it causes aggregation in the formulation. In addition, when more than 80% by weight of titanium dioxide is used, the amount of shell material that serves to connect the titanium dioxide is small, the particles are easily broken, the titanium dioxide in the capsule is hard to show a uniform coverage, as well as spreadability This has the disadvantage of falling.

It is preferable that the particle diameter of the said capsule containing titanium dioxide used for this invention is 200 nm-3 micrometers, It is more preferable that it is 200 nm-1 micrometer, At this time, spreadability is good and bright and natural cosmetic effect is possible. When the particle size of the capsule is less than 200nm, the small particle size causes the aggregation, and the spreadability is low.When the titanium dioxide capsule larger than 3㎛ is used, the application is not only irregular due to the rough feeling, but also natural due to the large size. This is because makeup is difficult.

In addition, the titanium dioxide contained in the capsule is preferably a particle size of 10 ~ 100nm. When using less than 10nm skin irritation is concerned due to the possibility of penetration into the skin, when using more than 100nm titanium dioxide it is difficult to encapsulate uniform titanium dioxide in the capsule due to the large size.

In addition, the makeup cosmetic composition of the present invention may further contain iron oxide in the capsule containing the titanium dioxide in order to reduce cloudiness. The method for producing a titanium dioxide capsule containing iron oxide is similar to the titanium dioxide capsule, and further comprises mixing titanium dioxide and iron oxide with an agi-mixer in the core material preparation step. At this time, the iron oxide may be yellow iron oxide (FeOOH), red iron oxide (Fe ₂ O ₃ ), brown iron oxide (Fe ₂ O ₃ ), black iron oxide (Fe ₃ O ₄ ), etc., the desired color, such as one color or skin color You can mix and use. Iron oxide is preferably contained in an amount of 0.1 to 30% by weight based on the total weight of the titanium dioxide capsule. If it is less than 0.1% by weight, the effect of reducing turbidity is insignificant, and if it exceeds 30% by weight, it is difficult to produce a color similar to the skin color when making a color cosmetic using the present material. In addition, when considering the effect of reducing the cloudiness and natural color, the content of iron oxide is more preferably 1 to 10% by weight based on the total weight of the capsule.

The cosmetic composition according to the present invention may be formulated into a face powder, compact, powder foundation or two-way cake, liquid foundation, cream foundation, makeup base, and the like.

Hereinafter, preferred examples are provided to help understanding of the present invention, but the following examples are merely to illustrate the present invention, and the scope of the present invention is not limited to the following examples.

Reference Example 1 Preparation of Example 1 and Comparative Examples 1 and 2

To the ingredients and contents of Table 1, Example 1 and Comparative Examples 1 and 2 were prepared. Example 1 and Comparative Example 1 include a capsule containing 65% by weight of titanium dioxide having a particle size of 20 to 35nm, Example 1 includes a capsule having a particle size of 500nm, Comparative Example 1 includes a capsule having a particle size of 4㎛ will be. In addition, Comparative Example 2 uses TiO ₂ CR 50 which is widely used and used as titanium dioxide.

In Example 1 and Comparative Example 1, as a shell material for encapsulating titanium dioxide, a terephthalic acid / isophthalic acid / cholycol copolymer was used, and acetone was used as a volatile solvent. The shell material was dissolved in a volatile solvent, and titanium dioxide was dispersed therein, followed by spray drying to encapsulate the titanium dioxide.

Example 1 and Comparative Examples 1-2 were manufactured by the following method, respectively. First, 1 to 10 of Table 1 was weighed to obtain a mixture by grinding and mixing with a Henschel mixer. Thereafter, raw materials 11 to 14 were heated to 85 ° C. to dissolve, spray mixed with the mixture, and pulverized and mixed with a Henschel mixer to prepare a powder foundation cosmetic composition.

Ingredient Name (wt%) Example 1 Comparative Example 1 Comparative Example 2 Talc To 100 To 100 To 100 2. Serisite 10.0 10.0 10.0 3. Silica 3.0 3.0 3.0 4. Barium Sulfate 5.0 5.0 5.0 5. Titanium Dioxide - - 5.0 6. Titanium Dioxide Capsule (500nm) 7.7 - - 7. Titanium Dioxide Capsule (4㎛) - 7.7 - 8. Red Iron Oxide (Fe ₂ O ₃ ) 0.8 0.8 0.8 9. Yellow Iron Oxide (FeOOH) 2.0 2.0 2.0 10. Black Iron Oxide (Fe ₃ O ₄ ) 0.2 0.2 0.2 11.Squalene 3.0 3.0 3.0 12. Meadowfoam Seed Oil 3.0 3.0 3.0 13. Preservative 0.2 0.2 0.2 14. Spices 0.3 0.3 0.3

[Test Example 1] feeling of use and naturalness of the makeup, repose angle evaluation test

35 professional panelists consisting of 25 to 35 year old women were evaluated for the feeling of use of the powder foundation cosmetic composition prepared in Example 1 and Comparative Examples 1 to 2 and the naturalness of the makeup, and the results are shown in Table 2 below. . At this time, the worst evaluation score was 1 and the best evaluation score was 10 using the scoring method.

In addition, the angle of repose was measured by using a Seishin Multi Tester MT-1000 apparatus with a vibration intensity of 10 and a feeder time of 60 seconds for the powder to fall off.

Item Example 1 Comparative Example 1 Comparative Example 2 Feeling
(Roughness, touch, sensory spread) 7.5 6.8 5.3 Naturalness of makeup (whitening phenomenon) 5.8 4.5 4.2 Repose 51 57 65 Rating: 1 ~ 10, 1: Very bad, 5: Average, 10: Very good

As can be seen in Table 2, Example 1 and Comparative Example 1, which is a cosmetic composition including a capsule containing titanium dioxide, were highly evaluated in each evaluation item, compared to the case of using commercially available general titanium dioxide. In the case of evaluation of the feeling of use and uniform application, Example 1 and Comparative Example 1 were measured to be higher than Comparative Example 2. In the case of the existing titanium dioxide, the granule shape called rice grains, while containing titanium dioxide It is believed that the capsule is spherical, so it spreads easily without roughness and less cohesion.

In addition, when comparing Example 1 with Comparative Example 1, Example 1 secured a higher score than Comparative Example 1, which is roughly evaluated because of the particle size coming from the larger size in the case of Comparative Example 1 as the capsule size increases Seems to be. Example 1 and Comparative Example 1 were also evaluated better in the case of turbidity, which means that the existing titanium dioxide has a high aggregation of particles, while the capsule containing the newly applied titanium dioxide has a medium of titanium dioxide as a shell material. This barrier is not only able to disperse uniform titanium dioxide, but also due to the spherical crystallinity, it is considered that the surface contacting between particles is made small to reduce the aggregation.

The angle of repose is the maximum inclination angle that can be deposited without causing the powder to fall freely and be deposited. If the angle of repose is small, the flowability of the powder is good. When looking at the result of Table 2, compared with the comparative example 2, the repose angle of Example 1 and Comparative Example 1 which encapsulated titanium dioxide was measured small. This is because spherical encapsulated titanium dioxide has a smaller contact area between powder particles than a granule shape, which is a form of conventional titanium dioxide, and thus receives less frictional force. In addition, Example 1 was analyzed to have a smaller flow angle compared to Comparative Example 1 has a larger flowability. In Example 1 and Comparative Example 1, since the titanium dioxide capsules were put in the same mass, Example 1, which is smaller in size, contained a larger number of titanium dioxide capsules than Comparative Example 1, and as a result, Example 1 was Comparative Example 1 Compared to the above, it is considered that the flowability is higher due to the higher spherical content.

Reference Example 2 Preparation of Examples 2 and 3

Examples 2 and 3 containing 0.5% by weight and 2.0% by weight of iron oxide, respectively, in a capsule containing titanium dioxide in order to examine the effect of further containing iron oxide in the composition according to the present invention. It was prepared by. In order to prepare the encapsulated titanium dioxide-iron oxide complex, a step of preparing the core material was further mixed with titanium dioxide and iron oxide by an Agi-Mixer for about 10 minutes.

Preparation of Examples 2 and 3 was carried out by the following method. First, 1 to 9 were weighed to obtain a mixture by grinding and mixing with a Henschel mixer. Then, the raw materials 10-13 were heated to 85 ° C. to dissolve, spray mixed with the mixture, and ground and mixed with a Henschel mixer to prepare a makeup cosmetic composition. At this time, the titanium dioxide capsule was used in the same 500nm size as Example 1 of the Reference Example.

Ingredient Name (wt%) Example 2 Example 3 Talc To 100 To 100 2. Serisite 10 10 3. Silica 3 3 4. Barium Sulfate 5 5 5. Titanium dioxide capsule (containing 0.5% iron oxide) 7.7 - 6. Titanium dioxide capsule (contains 2.0% iron oxide) 7.7 7. Red Iron Oxide (Fe ₂ O ₃ ) 0.8 0.8 8. Yellow Iron Oxide (FeOOH) 2.0 2.0 9. Black Iron Oxide (Fe ₃ O ₄ ) 0.2 0.2 10. Squalene 3 3 11. Meadowfoam Seed Oil 3 3 12. Preservative 0.2 0.2 13. Spices 0.3 0.3

[Test Example 2] naturalness of the makeup, coverage evaluation test

Examples 1 to 3 35 of the professional panel consisting of 25 to 35 year old women for the naturalness and the covering power of the makeup cosmetic composition was evaluated by comparison, the results are shown in Table 4 below. At this time, the worst evaluation score was 1 and the best evaluation score was 10 using the scoring method.

Item Example 1 Example 2 Example 3 Naturalness of makeup (whitening phenomenon) 5.8 6.5 7.0 Cover Power (Blemish Cloaking Ability) 7.3 7.4 7.6 Rating: 1 ~ 10, 1: Very bad, 5: Normal, 10: Very good

As can be seen in Table 4, in Examples 2 and 3 in which iron oxide was added to the titanium dioxide capsule, the whiteness of the makeup cosmetic was improved, and the makeup was made more naturally. In the case of Example 1 using a capsule containing only titanium dioxide, the effect of reflecting light in the visible ore region of 380 to 770 nm is large, causing a opacity, whereas using titanium dioxide-containing iron oxide-containing capsules containing iron oxide. In Examples 2 and 3, it is understood that the haze phenomenon is improved because the light reflected by the titanium dioxide is partially absorbed by the iron oxide in the particles, thereby reducing the amount of reflected light in the visible light region. In addition, as the content of iron oxide in the titanium dioxide-iron oxide-containing capsule increases, the decrease in the amount of light reflection in the visible light region is increased, and it can be confirmed that the third embodiment has a larger reduction in turbidity than the second embodiment.

In addition, the skin coverage according to the iron oxide content was not significantly different, but the higher the iron oxide content, the higher the coverage was found to have a greater effect of correcting the skin defects.

Claims (8)

Makeup cosmetic composition comprising a capsule containing titanium dioxide. The makeup cosmetic composition of claim 1, wherein the titanium dioxide is contained in an amount of 20 to 80% by weight based on the total weight of the capsule. The makeup cosmetic composition of claim 1, wherein the capsule is contained in an amount of 1.0 to 40.0% by weight based on the total weight of the composition. According to claim 1, wherein the particle size of the makeup cosmetic composition, characterized in that 200nm ~ 3㎛. According to claim 1, wherein the particle diameter of the titanium dioxide makeup cosmetic composition, characterized in that 10 ~ 100nm. The makeup cosmetic composition of claim 1, wherein the capsule further contains iron oxide. The makeup cosmetic composition of claim 6, wherein the iron oxide is contained in an amount of 0.1 to 30% by weight based on the total weight of the capsule. The makeup cosmetic composition of claim 1, wherein the composition is formulated as a face powder, compact, powder foundation, two-way cake, liquid foundation, cream foundation, or makeup base.