KR102012169B1 - Make-up cosmetic composition comprising synthetic mica and coated inorganic sunscreen - Google Patents

Abstract

The present invention relates to a makeup cosmetic composition comprising a synthetic mica and a coated inorganic sunscreen. According to one aspect of the present invention, a cosmetic composition comprising a synthetic mica and a silicone elastomer is coated with a skin-friendly raw material while maintaining a smooth feeling of use and elasticity. The powder has the effect of increasing makeup sustainability and skin adhesion and increasing the amount of inorganic sunscreen to increase skin coverage.

Description

Makeup cosmetic composition comprising synthetic mica and coated inorganic sunscreen {Make-up cosmetic composition comprising synthetic mica and coated inorganic sunscreen}

The present invention relates to a makeup cosmetic composition.

In general, compression molding, widely used in powder makeup, is a generalized technique, and a pigment such as talc, mica, sericite, silica, calcium carbonate, kaolin, starch, and inorganic pigments such as iron oxide, ultramarine, and blue and tar pigments. Pearlescent pigments are applied using the same refractive index of organic pigments and pigments to impart color tone, and oil is used as a binder to control the amount applied to the skin and to improve compression moldability. Existing makeup cosmetic composition having a feeling of elasticity contained a plate-like pigment such as talc and mica and spherical extender pigments such as silica and porous powder in powder sieving pigments except pearlescent pigments. Among them, mica, which is widely used as a plate-like constitution pigment, has a good glossiness and has a soft feeling and elasticity, but has a gray appearance and thus has a problem of degrading the appearance of clean appearance. High impurity content has a disadvantage of difficulty in using.

The sunscreen is an organic material that synthesizes organic substances such as PABA, and then absorbs ultraviolet rays from the skin's surface and disperses them into thermal energy (hereinafter referred to as organic sunscreens) and ultraviolet scatterers that scatter and reflect ultraviolet rays to prevent skin penetration. (Hereinafter referred to as inorganic sunscreen). Inorganic sunscreens include titanium dioxide and zinc oxide. These ingredients have excellent UV protection, high skin stability and can be used for sensitive skin and young children. Recently, ultra-fine titanium dioxide has been developed to increase the blocking ability and lighter feeling. However, in the case of the titanium dioxide used for the UV-blocking function as described above, when the excessive use of the small particle size, there is a problem that the applicability during compression molding of the powder makeup due to the cohesion between the particles, there is a limitation in the amount of use There is this.

Republic of Korea Patent No. 10-1269405

One aspect of the present invention is a makeup cosmetic composition having excellent skin coverage, including a high content of an inorganic sunscreen, while greatly improving makeup sustainability and adhesion while maintaining a feeling of elasticity and a soft feeling, including a powder sieving pigment, silicone elastomer, and organic dispersion oil Containing, the powder extender pigment synthetic mica; Synthetic mica coated with triethoxycaprylylsilane; And it provides a makeup cosmetic composition comprising titanium dioxide coated with lauroyl lysine.

One aspect includes a powder sieving pigment, a silicone elastomer, and an organic dispersion oil, wherein the powder sieving pigment is synthetic mica; Synthetic mica coated with triethoxycaprylylsilane; And it provides a makeup cosmetic composition comprising titanium dioxide coated with lauroyl lysine.

The makeup composition according to one embodiment includes a synthetic mica and a silicone elastomer, while maintaining a feeling of elasticity and a soft feeling, including coated synthetic mica, greatly improving makeup sustainability and adhesion, and at the same time increasing the amount of coated titanium dioxide. It can have excellent skin coverage.

Makeup cosmetic composition according to one embodiment is 40 to 80% by weight, 45 to 80% by weight, 50 to 80% by weight, 55 to 80% by weight, based on the total weight of the composition 60 wt% to 80 wt%, 65 wt% to 75 wt%.

Makeup cosmetic composition according to one embodiment is 10% to 20% by weight, 10% to 18% by weight, 10% to 16% by weight, 12% to 20% by weight, based on the total weight of the composition Weight percent to 18 weight percent, 12 weight percent to 16 weight percent. If the silicone elastomer is less than 10% by weight or more than 20% by weight, problems in moldability may occur.

Makeup cosmetic composition according to one embodiment is 10% to 40% by weight, 10% to 35% by weight, 10% to 30% by weight, 15% to 30% by weight, based on the total weight of the composition 15 wt% to 25 wt%.

Makeup cosmetic composition according to one embodiment may include 65 to 75% by weight powder extender pigment, 10 to 20% by weight silicone elastomer, and 15 to 25% by weight of the organic dispersion oil.

The term "extender pigment" may refer to an achromatic pigment which is blended for various purposes in the preparation of the pigment. Sieving pigments can be distinguished from pearlescent pigments (pearls) and pigments which are coloring pigments.

The term "powder sieving pigment" may mean a sieving pigment added to the cosmetic to improve the stability of the powder product, serve as a diluent, and impart color, texture or texture. Powder sieving pigment may be a filler in powder form. Existing cosmetics mainly used talc, natural mica, uncoated powder, etc. as a powder sieving pigment. However, the makeup cosmetic composition according to one embodiment includes synthetic mica, coated synthetic mica and coated titanium dioxide as a powder extender.

The "synthetic mica" may be a hydroxyl group (-OH) of natural mica substituted with fluorine (F). Specifically, the hydroxyl group of the magnesium aluminum silicate layer may be substituted with fluorine. Synthetic mica is similar to natural mica, in which a magnesium aluminum silicate layer is weakly bound by potassium ions, but requires high temperatures in the manufacturing process and thus may have a low content of heavy metals and impurities. Thus, the synthetic mica may be a fluorine-based synthetic mica. Synthetic mica may have superior properties such as stronger heat resistance and higher acid-alkali resistance than natural mica. The method for producing a synthetic mica is known, and a person skilled in the art can obtain the synthetic mica according to a conventional manufacturing method or purchase it from a manufacturer.

Makeup cosmetic composition according to one embodiment 1% to 25% by weight, 5% to 20% by weight, 5% to 15% by weight, 10% to 20% by weight, 10% based on the total weight of the composition It may include 15% by weight to 15% by weight. Synthetic mica may be included in the makeup cosmetic composition to give a soft feeling of use and natural gloss. In addition, synthetic mica can be included in the makeup cosmetic composition to reduce the darkening phenomenon compared to using natural mica.

The term "coating" may mean to improve the quality of a surface by covering a thin film with a different material on the surface of a particular material or material. In the present specification, the coating is a process of surface-treating triethoxycaprylylsilane on a synthetic mica to obtain a synthetic mica coated with triethoxycaprylylsilane, or lauroyl lysine on a titanium dioxide surface treatment. It may mean a process of obtaining titanium dioxide coated with lysine. Thus, "coating" herein may be used interchangeably with the terms "coating treatment" or "surface treatment". The method of coating triethoxycaprylylsilane on synthetic mica, and the method of coating lauroyl lysine on titanium dioxide can use methods known in the art.

Since the "triethoxycaprylylsilane" used in the coating treatment shows high hydrophobicity, it improves the oil dispersibility of the powder and helps to improve the stability of the formulation in the oil-rich formulation, The high affinity can increase the adhesion of the makeup composition.

"Lauroyl Lysine" used in the coating process is an amino acid similar to the skin structure, when using a component coated with lauroyl lysine improves skin adhesion and dispersibility to improve the sustainability and adhesion of the makeup composition You can increase it.

Makeup cosmetic composition according to one embodiment 5% to 29% by weight, 5% to 25% by weight, 5% to 20% by weight of synthetic mica coated with triethoxycaprylylsilane, based on the total weight of the composition , 5% to 15% by weight. When using a synthetic mica and a coated synthetic mica, skin blemish cover lasting may be superior to when using a synthetic mica or a natural mica alone. In addition, when the coated synthetic mica alone is used, the oil absorption amount is relatively low, so that the oil content in the whole composition may be reduced and the powder content may be increased, thereby increasing the powdery feeling. Therefore, the synthetic mica and the coated synthetic mica may be used together. Formulations with higher oil content than powder formulations can be prepared.

The coated synthetic mica may be coated with 1.0% by weight to 5.0% by weight of triethoxycaprylylsilane relative to the total weight of the coated synthetic mica. If triethoxycaprylylsilane is coated at less than 1.0% by weight, the coating effect may be insignificant, and when coated at more than 5.0% by weight, the effect of the synthetic mica itself may be reduced.

The "titanium dioxide (TiO ₂ )" may be used as a colorant and an inorganic sunscreen agent in the cosmetic composition.

The makeup cosmetic composition according to one embodiment may include titanium dioxide coated with lauroyl lysine, which is an inorganic sunscreen, titanium dioxide, which acts as a UV absorber, and may increase skin adhesion through an amino acid coating.

Makeup cosmetic composition according to one embodiment is 10% to 35% by weight, 15% to 35% by weight, 20% to 35% by weight, 10% by weight of titanium dioxide coated with lauroyl lysine based on the total weight of the composition % To 30% by weight, 15% to 30% by weight, 20% to 30% by weight, may comprise 20% to 25% by weight. When the content of the titanium dioxide coated with lauroyl lysine is 5% by weight or less, the formulation may not be agglomerated even if physical force is applied, thereby decreasing stability of the formulation. Accordingly, the titanium dioxide coated with lauroyl lysine relative to the total weight of the composition may be included in an amount of more than a certain amount, for example, more than 5% by weight, so that the formulation may have an elastic dough formulation to improve formulation stability.

Titanium dioxide used in the conventional cosmetics for UV protection functionality has a problem in that the application of the compactness is reduced when the compression molding due to the cohesion between the particles when the particle size is too small, there is a limitation in the amount of use. However, since titanium dioxide coated with lauroyl lysine has a larger particle diameter and better skin adhesion than conventional titanium dioxide, even when used in a high content, it may have excellent application and high skin adhesion. Makeup cosmetic composition according to one embodiment using titanium dioxide coated with lauroyl lysine has a good applicability even at a high content, and the use of a high content can be used to increase the skin coverage while excellent UV protection function have. When the titanium dioxide coated with lauroyl lysine is used, titanium dioxide coated with other raw materials, for example, titanium dioxide coated with silica and dimethicone, aluminum hydroxide and Better applicability at higher contents of more than 15% by weight compared to titanium dioxide coated with stearic acid or titanium dioxide coated with triethoxycaprylylsilane and aluminum hydroxide can do.

The coated titanium dioxide may be coated with lauroyl lysine 1.0% to 5.0% by weight based on the total weight of the coated titanium dioxide. If lauroyl lysine is coated at less than 1.0% by weight, the coating effect may be insignificant, and when coated with more than 5.0% by weight, the effect of titanium dioxide itself may be reduced.

The powder extender pigment may further include a pigment.

The term “silicone elastomer” may mean a crosspolymer having a three-dimensional structure, that is, a swelling network structure of polysiloxane chains with low viscosity or volatile silicone oil or organic material. The low viscosity or volatile silicone oil may be D4, D5, silicone oil, or the like, and the organic material may be mineral oil or isododecane. The silicone elastomer provides not only a cushioning feeling as a silicone elastomer but also a unique soft feeling and matte finish that cannot be added to other raw materials, and can have a cushioning feeling and an excellent incremental effect of the crosspolymer. Silicone elastomers herein may be used interchangeably with the term "silicone gel".

The makeup cosmetic composition according to one embodiment may include swelling the crosspolymer in silicone oil. Specifically, the silicone elastomer may be a dimethicone / vinyl dimethicone crosspolymer dispersed in dimethicone. Silicone oil is a synthetic oil that does not deteriorate easily.

The organic dispersion oil may be an ester oil, an olefin oil, or a combination thereof.

The "ester-based oil" is an oil having an intramolecular ester (-COO-) bond and may exhibit polar properties. Esters can be obtained by dehydrating acids and alcohols. The acid may be fatty acid, polybasic acid, hydroxy acid, and the like, and the alcohol may be lower alcohol, higher alcohol, polyhydric alcohol, or the like. The ester oil may be used as long as it is a known ester oil used as a cosmetic, and may be purchased from a cosmetic raw material manufacturer. Examples of ester oils are caprylic / capric glyceride, cetyl ethylhexanoate, isocetyl ethylhexanoate, isocetyl myristate Isopropyl myristate, Neopentyl glycol dicaprate, Hexyl laurate, Triethylhexanoin, Pentaerythryl tetraoctanonate, Pentaerythrityl tetraoctanonate Ethylhexyl palmitate, isononyl isononanoate, and the like.

The "olefin oil" may refer to an oil having a carbon double bond in the molecule. The olefin oil may be used as long as it is a known olefin oil used as a cosmetic, and may be purchased from a cosmetic raw material manufacturer. Examples of the olefin oil may include hydrogenated polyisobutene and the like.

Makeup cosmetic composition according to one embodiment may be a makeup cosmetic composition having a sense of elasticity. Specifically, it may be a solid makeup cosmetic composition that gives a sense of elasticity by using a powder sieving pigment and silicone elastomer mixed.

Makeup cosmetic compositions according to one embodiment also contain additional ingredients commonly used in cosmetics such as perfumes, dyes, fillers, preservatives, thickeners, neutralizing agents, sunscreens, sweeteners, vitamins, free-radical scavengers and metal ion blockades. And any conventional cosmetic ingredients that may be selected from the formulations, and mixtures thereof.

Makeup cosmetic composition according to one embodiment is used in addition to other active agents or coloring agents, such as color (hue), brightening, three-dimensional, moisturizing effect, whitening improvement, anti-wrinkle, UV protection, anti-aging and pearly It may be to have.

Those skilled in the art can select any additional ingredients and / or amounts thereof such that the advantageous properties of the compositions according to the present disclosure are not adversely affected or substantially affected by the expected addition.

The composition according to the invention can be produced via known methods commonly used in cosmetics or dermatology.

Makeup cosmetic composition according to one embodiment may be made in the form of elastic dough by mixing the constituents in the form of elastic dough, and then in the shape of a desired shape using an extruder or a molding machine.

Makeup cosmetic composition according to one embodiment may be a powder type.

Makeup cosmetic composition according to one embodiment may be a foundation fact.

According to the makeup cosmetic composition according to one aspect, including a synthetic mica and silicone elastomer, while maintaining a smooth feeling of use and elasticity, through the powder coated with a skin-friendly raw material to enhance makeup persistence and skin adhesion, increase the content of inorganic sunscreen It is effective to increase skin coverage.

1 is a diagram showing the results of VISIA-CR photographing after 4 hours and 8 hours immediately after application of the foundation pact according to Example 1 or Comparative Example 2 including the synthetic mica and the coated synthetic mica on the face. .
2 is a graph showing melanin average levels measured by Antera 3D before, immediately after, 4 hours and 8 hours after application of the foundation pact according to Example 1 or Comparative Example 2.
3 is a graph showing melanin average levels measured by Antera 3D before, immediately after, 4 hours and 8 hours after application of the foundation pact according to Comparative Example 1 or Comparative Example 2.
Figure 4 is a graph showing the skin blemish cover duration (%) compared to immediately after the application of the foundation pact according to Example 1 or Comparative Example 2 to 4 hours, after 8 hours.
FIG. 5 is a graph showing skin blemish cover duration (%) compared to immediately after application of a foundation pact according to Comparative Example 1 or Comparative Example 2 to 4 hours and 8 hours after application.
Figure 6 is a photograph of a change in color (right) after dropping the artificial sebum and the image of the raw material state of the synthetic mica and natural mica (left).
FIG. 7 is a graph showing a change in average brightness value (L value) after application of the foundation facts according to Example 2, Comparative Example 3, Comparative Example 4, Comparative Example 5, or Comparative Example 6 after application.
8 is a photograph of the formulation image (left) and the change of the formulation (right) after applying a physical force without the foundation fact according to Example 2 or Comparative Example 6.

Hereinafter, the present invention will be described in more detail with reference to Examples. However, these examples are for illustrative purposes only and the scope of the present invention is not limited to these examples.

Example 1 Preparation of Foundation Pact

A foundation pact was manufactured using the raw material 1 which is a powder part, and the raw material 2 which is an oil binder. The powder composition of Raw Material 1 was synthesized with synthetic mica, synthetic mica coated with triethoxycaprylylsilane (product name: DR 600 AS, manufacturer: EnTOP Material Co., Ltd., Korea), titanium dioxide coated with lauroyl lysine. (Product Name: LL-5 TiO ₂ CR50, Manufacturer: DAITO KASEI KOGYO Co., Ltd., Japan), and pigments. The raw material 2, which is an oil binder of the powder, is a dimethicone / vinyl dimethicone crosspolymer dispersed in dimethicone as a silicone elastomer, caprylic / capric glyceride as an ester oil, and a hydrogenated polyisobutene as a polymer oil. And the like. Table 1 shows the components and contents of the raw material 1 and the raw material 2 of Example 1.

ingredient Content (% by weight) Raw material 1 Synthetic mica; Synthetic mica coated with triethoxycaprylylsilane; Titanium dioxide coated with lauroyl lysine; And a powder composition comprising a pigment 65-75 Raw material 2 Oil containing a silicone elastomer and a solvent mixed with ester / polymer oil 25-35

The specific manufacturing method is as follows. Raw material 1 was added to a Henschel mixer and mixed at a low speed (400 to 700 rpm) and a high speed (700 to 1500 rpm). Thereafter, the mixed raw material 1 was added to a ribbon mixer or a universal mixer, and the raw material 2 was evenly sprayed while mixing at 400 rpm, followed by kneading. After confirming that the oil binder including the silicone oil and the polymer copolymer was sufficiently dispersed, the foundation pact was manufactured by molding using an extruder. Table 2 shows the specific components and contents of the cosmetic composition of Example 1.

ingredient Content (% by weight) Raw material 1 Synthetic mica 13.32 Coated Synthetic Mica 10.00 Methyl methacrylate crosspolymer 17.00 Coated titanium dioxide 24.98 Pigment 3.70 Raw material 2 Caprylic / Capric Glyceride 7.00 Hydrogenated Polyisobutene 9.00 Pentylene glycol 1.00 Dispersed in dimethicone
Dimethicone / Vinyl Dimethicone Crosspolymer 14.00

Comparative Examples 1 and 2: Preparation of Foundation Pact

Unlike Example 1, using the synthetic mica and the coated synthetic mica of the raw material 1, Comparative Example 1 is using only the synthetic mica, Comparative Example 2 except for using only the natural mica and Example 1 Foundation pacts were prepared in the same manner. Table 3 shows the foundation facts and contents of Example 1 and Comparative Examples 1-2.

division Example 1 Comparative Example 1 Comparative Example 2 Raw material 1 Synthetic mica 13.32 23.32 - Coated Synthetic Mica 10.00 - - Natural Mica - - 23.32 Methyl methacrylate crosspolymer 17.00 17.00 17.00 Coated titanium dioxide 24.98 24.98 24.98 Pigment 3.70 3.70 3.70 Raw material 2 Caprylic / Capric Glyceride 7.00 7.00 7.00 Hydrogenated Polyisobutene 9.00 9.00 9.00 Pentylene glycol 1.00 1.00 1.00 Dispersed in dimethicone
Dimethicone / Vinyl Dimethicone Crosspolymer 14.00 14.00 14.00

Experimental Example 1 Evaluation of Skin Blemish Cover Sustainability

After applying the foundation pact prepared according to Example 1 and Comparative Examples 1 to 2 on the face and evaluated the skin blemish cover lasting. The evaluation was conducted by selecting a panel of five healthy adults (average age 27.6 years). After washing the face, after applying the appropriate amount of the test product to the test site (face), the test site was VISIA-CR (Canfield Scientific, Inc., USA), melanin average level (Melanin average level) was measured by Antera 3D (miravex, UK) to analyze the results using the average value.

The degree of evaluation of skin blemish cover persistence was derived as a% value as follows.

X: melanin average level at the measurement site before using the product

Y: melanin average level of the measurement site immediately after application

Z: melanin average level of the measurement site after application A time

A Time Skin Bleed Cover Duration (%) = (X-Z) / (X-Y) ⅹ100

1 is a diagram showing the results of VISIA-CR photographing after 4 hours and 8 hours immediately after application of the foundation pact according to Example 1 or Comparative Example 2 including the synthetic mica and the coated synthetic mica on the face. .

As shown in FIG. 1, when applying the foundation pact of Example 1, the skin blemish coverage was superior to that of Comparative Example 2 compared to before application, and the coverage was continued even after 8 hours of application.

2 is a graph showing melanin average levels measured by Antera 3D before, immediately after, 4 hours and 8 hours after application of the foundation pact according to Example 1 or Comparative Example 2.

3 is a graph showing melanin average levels measured by Antera 3D before, immediately after, 4 hours and 8 hours after application of the foundation pact according to Comparative Example 1 or Comparative Example 2.

Figure 4 is a graph showing the skin blemish cover duration (%) compared to immediately after the application of the foundation pact according to Example 1 or Comparative Example 2 to 4 hours, after 8 hours.

FIG. 5 is a graph showing skin blemish cover duration (%) compared to immediately after application of a foundation pact according to Comparative Example 1 or Comparative Example 2 to 4 hours and 8 hours after application.

As shown in Figures 2 to 5, the product of Comparative Example 1 and the product of Comparative Example 2 was found to have no significant difference in skin blemish cover lasting. However, the product of Example 1 had an 8 hour average skin blemish cover duration of 81.8%, which was about 1.7% higher than that of Comparative Example 2. These results show that there is no significant difference in makeup cover sustainability when using only natural mica and synthetic mica alone. .

Therefore, when using the synthetic mica and the coated synthetic mica as a powder sieving pigment, it was confirmed that the skin blemish cover lasting than the synthetic mica or natural mica alone.

Experimental Example 2: Confirmation of the darkening phenomenon

An experiment was conducted to compare the darkening phenomenon of synthetic and natural mica. Specifically, the color change was photographed after dropping artificial sebum on the synthetic mica and natural mica in the raw state. The composition of artificial sebum is 15% (w / w) paraffin wax, 20% (w / w) olive oil, 15% (w / w) coconut oil, 15% (w / w) stearic acid, 15% (w) / w) and cholesterol 20% (w / w).

Figure 6 is a photograph of a change in color (right) after dropping the artificial sebum and the image of the raw material state of the synthetic mica and natural mica (left).

As shown in Figure 6, compared to natural mica synthetic mica dropped artificial sebum after the darkening phenomenon appeared less. Therefore, it was confirmed that the synthetic mica is suitable for use as a component of the foundation pact compared to the natural mica.

Example 2 and Comparative Examples 3 to 6: Preparation of Foundation Pact

The foundation pact of Example 2 and Comparative Examples 3 to 6 was prepared in the same manner as in Example 1 except that the content of the coated titanium dioxide in the raw material 1 component was changed. Table 4 shows the foundation facts and contents of Example 2 and Comparative Examples 3-6.

division Example 2 Comparative Example 3 Comparative Example 4 Comparative Example 5 Comparative Example 6 Raw material 1 Synthetic mica To 100 To 100 To 100 To 100 To 100 Coated Synthetic Mica 10.00 10.00 10.00 10.00 10.00 Methyl methacrylate crosspolymer 17.00 17.00 17.00 17.00 17.00 Coated titanium dioxide 24.98 20.00 15.00 10.00 5.00 Raw material 2 Caprylic / Capric Glyceride 7.00 7.00 7.00 7.00 7.00 Hydrogenated Polyisobutene 9.00 9.00 9.00 9.00 9.00 Pentylene glycol 1.00 1.00 1.00 1.00 1.00 Dispersed in dimethicone
Dimethicone / Vinyl Dimethicone Crosspolymer 14.00 14.00 14.00 14.00 14.00

Experimental Example 3: Comparative Evaluation of Coverage

The covering power was evaluated about the foundation facts manufactured according to Example 2 and Comparative Examples 3 to 6. Specifically, the black color colored paper coated with the test product on a (2cmⅹ2cm) in an amount of 2mg / cm ^2, the brightness values before and after applying the spectral side color system and measured using a (model:: CM-2600d, manufacturer KONICA MINOLTA, Japan) It was. It was intended to compare and evaluate the coverage by deriving the rate of change of the brightness value after the application of the product, and the smaller the rate of change of the L value, the lower the coverage.

FIG. 7 is a graph showing a change in average brightness value (L value) after application of the foundation facts according to Example 2, Comparative Example 3, Comparative Example 4, Comparative Example 5, or Comparative Example 6 after application.

As shown in FIG. 7, the average brightness value change rate was higher in the order of Example 2> Comparative Example 3> Comparative Example 4> Comparative Example 5> Comparative Example 6 after the application before the product application. Therefore, the coverage was also determined to be superior as the content of titanium dioxide in the order of Example 2> Comparative Example 3> Comparative Example 4> Comparative Example 5> Comparative Example 6. Compared with the use of titanium dioxide in 5 to 15% by weight as in the conventional cosmetics, the foundation pact of Example 2 was confirmed that the skin coverage is greatly increased by using more than 20% by weight of titanium dioxide.

Experimental Example 4: Evaluation of Formulation Stability

Formulation stability was evaluated for the foundation facts prepared according to Example 2 and Comparative Example 6. Specifically, the formulation image was photographed before tableting each product, the formulation was photographed by hand, and then the change of the formulation was photographed.

8 is a photograph of the formulation image (left) and the change of the formulation (right) after applying a physical force without the foundation fact according to Example 2 or Comparative Example 6.

As shown in Figure 8, the foundation formulation can be molded in the form of the dough with a sense of elasticity as in Example 2, the stability of the formulation when the dough does not agglomerate even if physical force is applied as in Comparative Example 6 Will fall. Therefore, when a certain amount of titanium dioxide coated with lauroyl lysine is included, it was confirmed that the formulation stability is also improved in proportion to the coverage.

Example 3 and Comparative Examples 7 to 9: Preparation of Foundation Pact

Example 3 was prepared in the same manner as in Example 1. The foundation pact of Comparative Examples 7 to 9 was prepared in the same manner as in Example 1, except that titanium dioxide coated with another raw material was used instead of the titanium dioxide coated with lauroyl lysine as a component of the first raw material. Table 5 shows the foundation fact ingredients and contents of Example 3 and Comparative Examples 7-9.

division Example 3 Comparative Example 7 Comparative Example 8 Comparative Example 9 Raw material 1 Synthetic mica To 100 To 100 To 100 To 100 Coated Synthetic Mica 10.00 10.00 10.00 10.00 Methyl methacrylate crosspolymer 17.00 17.00 17.00 17.00 Lauroyl  Lysine coated titanium Dioxide 24.98 - - - Silica and With dimethicone  Coated titanium dioxide - 24.98 - - Aluminum hydroxide  And titanium dioxide coated with stearic acid - - 24.98 - Triethoxycaprylylsilane  And With aluminum hydroxide  Coated titanium Dioxide - - - 24.98 Pigment 3.70 3.70 3.70 3.70 Raw material 2 Caprylic / Capric Glyceride 7.00 7.00 7.00 7.00 Hydrogenated Polyisobutene 9.00 9.00 9.00 9.00 Pentylene glycol 1.00 1.00 1.00 1.00 Dispersed in dimethicone
Dimethicone / Vinyl Dimethicone Crosspolymer 14.00 14.00 14.00 14.00

Experimental Example 5: Evaluation

The usability was evaluated about the foundation pact prepared according to Example 3 and Comparative Examples 7-9. Specifically, 10 healthy adults (average age: 25.6 years old) were selected to provide the foundation facts of Example 3 and Comparative Examples 7-9. Each product was compared for spreadability, spreadability, and elasticity. After each item was evaluated, a score of 0-5 was given and the scores were averaged. The results are shown in Table 6 below.

-Evaluation criteria for feeling

5: very good, 4: slightly better, 3: moderate, 2: slightly worse, 1: very bad

Test Items Example 3 Comparative Example 7 Comparative Example 8 Comparative Example 9 Application 4 1.6 3.3 1.8 Spreadability 4 1.7 3.1 2.5 Elasticity 3.8 1.8 4.2 1.9 Feeling synthesis 3.9 1.7 3.5 2.0

As shown in Table 6, the product of Example 3 was excellent in spreadability and spreadability and high elasticity, while the products of Comparative Examples 7 and 9 were relatively inferior in spreadability and spreadability and did not have good elasticity. The product of Comparative Example 8 was good in terms of spreadability and elasticity, but showed a phenomenon in which spreadability was inferior to that of Example 3.

As in Comparative Examples 7 and 9, raw materials having a small particle size among coated titanium dioxides were poor in application due to cohesion between particles when used in excess of 15% by weight. For this reason, titanium dioxide is generally used at less than 15% by weight in conventional cosmetics. However, since the titanium dioxide coated with lauroyl lysine has a large particle size and high skin adhesion, it was confirmed that the applicability was good even at a high content exceeding 15% by weight.

Claims (12)

Powder sieving pigment 65% to 75% by weight, silicone elastomer 10% to 20% by weight, and organic dispersion oil 15% to 25% by weight,
The powder sieving pigment is synthetic mica; Synthetic mica coated with triethoxycaprylylsilane; And titanium dioxide coated with lauroyl lysine. The makeup cosmetic composition of claim 1, wherein the synthetic mica is a hydroxyl group of natural mica substituted with fluorine. The makeup cosmetic composition of claim 1, comprising 5% to 15% by weight of synthetic mica, based on the total weight of the composition. The makeup cosmetic composition of claim 1 comprising 5 wt% to 15 wt% of synthetic mica coated with triethoxycaprylylsilane, based on the total weight of the composition. The makeup cosmetic composition of claim 1, wherein the coated synthetic mica is coated with 1.0% by weight to 5.0% by weight of triethoxycaprylylsilane based on the total weight of the coated synthetic mica. The makeup cosmetic composition of claim 1 comprising 20 wt% to 30 wt% of titanium dioxide coated with lauroyl lysine, based on the total weight of the composition. The makeup cosmetic composition of claim 1, wherein the coated titanium dioxide is coated with lauroyl lysine at 1.0% by weight to 5.0% by weight based on the total weight of the coated titanium dioxide. The make-up cosmetic composition of claim 1, wherein the powder extender pigment further comprises a pigment. The makeup cosmetic composition of claim 1 wherein the silicone elastomer is a dimethicone / vinyldimethicone crosspolymer dispersed in dimethicone. The makeup cosmetic composition of claim 1, wherein the organic dispersion oil is an ester oil, an olefin oil, or a combination thereof. The makeup cosmetic composition according to claim 1, which is a powder type. The makeup cosmetic composition according to claim 1, which is a foundation fact.

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