WO2016088905A1

WO2016088905A1 - Composite coating powder for cosmetics and cosmetic composition containing same

Info

Publication number: WO2016088905A1
Application number: PCT/KR2014/011609
Authority: WO
Inventors: 박병덕; 김윤; 권대혁; 심지훈; 이인애
Original assignee: (주)네오팜
Priority date: 2014-12-01
Filing date: 2014-12-01
Publication date: 2016-06-09

Abstract

The present invention relates to a composite coating powder for cosmetics and a cosmetic composition containing the same. The composite coating powder for cosmetics according to the present invention comprises 80-98 wt% of an inorganic powder, 0.1-10 wt% of a lipid composite, and 1.9-10 wt% of a silicone oil or an alkyl silane, wherein the lipid composite comprises, on the basis of the total weight thereof, 5-20 wt% of natural ceramide and/or alkanolamide, 5-10 wt% of cholesterol or a derivative thereof, 20-40 wt% of fatty acid, and 30-50 wt% of alcohol. The cosmetic composition using the composite coating powder can be effectively applied, in a skin-friendly manner, even to the skin, to which normal make-up cosmetics are problematic to apply due to impairment in the skin barrier function, such as sensitive skin, dry skin, or atopic dermatitis.

Description

Composite coating powder for cosmetics and cosmetic composition comprising the same

The present invention relates to a composite coating powder for cosmetics and to a cosmetic composition comprising the same, and more particularly, to a lipid composite having an excellent moisturizing property as a skin barrier strengthening component on the surface of an inorganic powder, and a silicone and a silane component having excellent water repellency and lubricity. By applying the coating material to be modified (modifying) the surface (modifying), in addition to the skin color correction effect inherent to the inorganic powder for cosmetics to enhance the moisturizing properties, and to improve the skin barrier function and impart skin protection effect by imparting a skin protection effect and It relates to a cosmetic composition comprising the same.

Generally, makeup cosmetics can be classified into base makeup cosmetics mainly applied to the face and point makeup cosmetics applied to eyes, eyebrows, lips, etc., and base makeup cosmetics formulated in powder, liquid, cream, or stick type foundation. Silver is used to create a three-dimensional, voluminous or translucency by naturally and evenly arranging the entire skin color, and point makeup cosmetics such as eye shadow, mascara, eyebrows, eye line, or lipstick are locally colored or shaded. The makeup cosmetics have been used in various colors according to the daily use of color televisions and smartphones, and almost all areas of the color wheel are used today.

If the basic make-up cosmetics are added, after applying basic cosmetics to prevent skin drying and giving flexibility to make the skin smooth and moist and healthy by supplying oil and moisture to the skin, it is applied to the face and gives color to the skin. It is a cosmetic for making skin defects such as blemishes and freckles that cannot be covered by basic cosmetics.

Therefore, make-up cosmetics should be applied to the skin thinly and have a high skin color correction effect without burdening the skin. Therefore, inorganic powders used in make-up cosmetics have good spreading and skin affinity, good skin feel and skin adhesion, Smooth feel, water and oil resistance and oil resistance are required.

Typical cosmetic powders include inorganic powders such as talc, mica, dorsal citrate, kaolin, titanium dioxide, and zinc oxide, which are used as two or more kinds of mixed powders or modified surfaces. .

Here, the conventional cosmetic powder mixture of two or more kinds of the inorganic powders are inferior to the adhesion to the skin, so that after the application is exfoliated over time and fall off by sweat or moisture, or the powder tends to aggregate together. Since there is an inconvenience that frequent makeup must be repaired, there is a problem that powder may block skin pores and cause skin diseases.

On the other hand, conventional surface-modified powders are generally obtained by treating silicone, silane, lecithin, wax, amino acid, metal soap, etc. to improve skin-fitting performance, but the most widely used are methicone, hydrogen dimethicone Silicone compounds such as dimethicone, branched dimethicone and acrylated dimethicone, and alkyl silane compounds such as octyl silane.

The silicone compound and the alkyl silane compound have the advantage of having excellent water repellency property and lubricity, but the lack of moisture in the skin acts as the biggest disadvantage. Indicates.

As a result, the inorganic powder to which the conventional surface modification method described above is actually applied has problems with moisturizing, skin affinity and persistence when applied to the skin, which is not satisfactory enough, and is also used for sensitive skin or weakened skin due to impaired skin barrier function. There is a problem that it is difficult to apply.

Therefore, there has been a demand in the art for the development of makeup cosmetics that satisfy the general functions or properties required for makeup cosmetics and yet have satisfactory skin protection.

When referring to this skin protection function, the skin acts as a primary barrier to protect the body from the external environment, in particular the stratum corneum in the outermost layer of the skin controls the loss of water and electrolyte through the skin, It acts as a skin barrier that blocks external harmful factors from penetrating into the body.

The structure of the stratum corneum is composed of corneocytes and intercellular keratin lipids filling the interstitial cells.The keratinocyte lipids in the stratum corneum are composed of ceramides, fatty acids and cholesterol derivatives. Lamellar (lamellar) structure is formed, this multi-lamellar structure is known to be one of the most important factors in performing the barrier function of the skin, in particular, the composition of the ceramide and its relative composition ratio is reported to play a very important role.

In order to maintain healthy skin, normal skin barrier function is required, and the above-mentioned abnormalities of skin barrier function are psoriasis, acute irritant contact dermatitis, acute occupational dermatitis, diaper dermatitis, allergic dermatitis, atopic dermatitis, chronic irritant contact dermatitis , Chronic occupational dermatitis, psoriasis, hypertrophic scars, keloid scars, cheilitis, lamellar ichthyosis, etc. Abnormal skin barrier function has been reported to be accompanied by abnormal skin.

Therefore, normalization of the skin barrier function or enhancement of the skin barrier function in the above-described skin disease or sensitive or dry abnormal skin is important for the treatment of skin diseases or normalization of skin function.

Since the skin accompanied with the above abnormality of the skin barrier function shows a difference in appearance compared to healthy skin of the non-lesional area, in this case, the use of makeup cosmetics is effective to correct the homogeneous skin color, but the sensitivity of the abnormality of the skin barrier function Alternatively, when the skin is dry or has a skin condition as described above, the use of make-up cosmetics is likely to exacerbate the abnormality of the skin barrier function, so its use is limited.

Conventionally, the applicant has applied a surface-treated powder with excellent skin moisturizing, water resistance, skin adhesion, and usability by coating a silicone powder such as pseudoceramide and dimethicone on inorganic powder or a lipid complex containing pseudoceramide on inorganic powder. Although various attempts have been made to obtain, it has been difficult to formulate due to the cohesion of pseudoceramide and incompatibility with silicone oil, although pseudoceramide alone is a major cause of abnormality of skin barrier function. From the fact that the effect is not effective in improving or enhancing the skin barrier function, to overcome the limitations of the existing make-up cosmetics, as a result of the study for the formulation that can restore and enhance the skin barrier function has been completed the present invention.

Accordingly, the first object of the present invention is to provide a functional composite coating powder for cosmetics having an effect of improving and strengthening the skin barrier function by a lipid complex while maintaining the function of the inorganic powder itself, which is one of the main constituents of the makeup cosmetic. It is for.

The second object of the present invention is a cosmetic functional composite coating in which a lipid compound having excellent water repellency and lubricity but inferior moisturizing property is mixed with a lipid compound exhibiting excellent moisture retention by water absorption and retention through a multilayer lamellar structure. To provide the powder.

A third object of the present invention is to provide a functional composite coating powder for cosmetics having a soft feeling, excellent skin protection effect, high water repellency and excellent dispersibility.

The fourth object of the present invention is to contain the functional composite coating powder for cosmetics, and can be effectively used for skin that is difficult to use general makeup cosmetics due to impairment of skin barrier function such as sensitive skin, dry skin, or atopic dermatitis. It is to provide a skin-friendly cosmetic composition.

According to a preferred aspect of the present invention for smoothly achieving the first to third objects described above, 80 to 98% by weight of the inorganic powder, 0.1 to 10% by weight of the lipid complex, and 1.9 to 1 in silicone oil or alkyl silane It consists of 10% by weight, the lipid complex is 5 to 20% by weight of ceramide, 5 to 10% by weight of cholesterol or derivatives thereof, 20 to 40% by weight of fatty acid, and 30 to 50% by weight of alcohol based on the total weight of the lipid complex. Provided is a composite composite coating powder for cosmetics.

The ceramide is 5 to 20% by weight of natural ceramide and / or alkanolamide.

Here, the natural ceramide may be ceramide-1, ceramide-3, ceramide-3B, ceramide-4, ceramide-6, or any mixture thereof. Alkanolamides also include myristyl oxostearamide monoethanolamine, myristyl arachidamide monoethanolamine, palmityl oxostearamide monoethanolamine, palmityl arachidamide monoethanolamine, dihydroxyisopropyl myristyl oxostear Amide, dihydroxyisopropyl myristyl oxoarakidamide, dihydroxyisopropyl palmityl oxostearamide, dihydroxyisopropyl palmityl oxoarakidamide, or any mixture thereof.

The above cholesterol and derivatives thereof include cholesterol, cholesteryl acetate, cholesteryl stearate, cholesteryl palmitate, cholesteryl hydroxy stearate, cholesteryl nonanoate, soybin sterol, or any of these. It may be a mixture.

The fatty acid may be palmitic acid, stearic acid, arachidic acid, behenic acid, palmitoleic acid, oleic acid, linoleic acid, linolenic acid, arachidonic acid or any mixture thereof.

The alcohol described above may also be cetyl alcohol, stearyl alcohol, behenyl alcohol, or any mixture thereof.

The silicone oils mentioned above for improving water repellency and lubricity include methyl hydrogen polysiloxane, dimethyl polysiloxane, dimethyl siloxane, methyl phenyl polysiloxane, methyl phenyl siloxane, organopolysiloxane, octamethyl cyclo tetrasiloxane, deca methyl cyclo pentasiloxane, or any thereof. It may be a mixture of.

In addition, the alkyl silane may be octyl silane.

The inorganic powder is titanium dioxide, zirconium oxide, talc, dolomite, sericite, magnesium carbonate, calcium carbonate, aluminum silicate, magnesium silicate, kaolin, barium sulfate, barium carbonate, boron nitride, diatomaceous earth, zinc oxide, Zirconium oxide, yellow iron oxide, black iron oxide, ultramarine blue, blue blue, chromium oxide, chromium hydroxide, or any mixture thereof.

According to a preferred aspect of the present invention for smoothly achieving the fourth object described above, the cosmetic composition is provided containing 1 to 99% by weight of the above-described cosmetic composite coating powder based on the weight of the cosmetic composition.

Cosmetic composite coating powder according to the present invention, while maintaining the function of the inorganic powder itself, which is one of the main constituents of the makeup cosmetics, has the effect of improving and strengthening the skin barrier function by the lipid complex, in particular excellent water repellency and lubricity Skin barrier by commercializing lipid complexes with inferior moisturizing properties or alkyl silane compounds with excellent moisture retention by water absorption and retention through multilayer lamellar structure but inferior in water repellency, cohesiveness, and incompatibility with other components In addition to the strengthening and improving effect, it has a soft feeling, excellent skin protection effect, high water repellency and excellent dispersibility, and thus the cosmetic composition containing the functional composite coating powder for cosmetics is sensitive skin or dry skin, or atopy. Skin intestine, such as dermatitis Due to the damage of the functions can be applied to the skin-friendly skin is difficult to use effectively against the general makeup cosmetics.

The composite coating powder for cosmetics according to the present invention is composed of 80 to 98% by weight of inorganic powder, 0.1 to 10% by weight of lipid complex, and 1.9 to 10% by weight of silicone oil or alkyl silane. It is composed of 5 to 20% by weight of ceramide, 5 to 10% by weight of cholesterol or derivatives thereof, 20 to 40% by weight of fatty acid, and 30 to 50% by weight of alcohol.

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

First, as the inorganic powder as the composite coating object applicable to the present invention, titanium dioxide, zirconium oxide, talc, dolomite, sericite, magnesium carbonate, calcium carbonate, aluminum silicate, magnesium silicate, which are conventionally used in makeup cosmetics Kaolin, barium sulfate, barium carbonate, boron nitride, diatomaceous earth, zinc oxide, zirconium oxide, yellow iron oxide, black iron oxide, ultramarine blue, blue blue, chromium oxide, chromium hydroxide, or any mixture thereof, among others talc, Mica and kaolin are used as a base for various solid cosmetics and color cosmetics because of their excellent feeling on the skin.

The composite coating powder according to the present invention is composed of 80 to 98% by weight of inorganic powder, 0.1 to 10% by weight of lipid complex, and 1.9 to 10% by weight of silicone oil or alkyl silane.

Here, the lipid complex is composed of 5 to 20% by weight of ceramide, 5 to 10% by weight of cholesterol or its derivatives, 20 to 40% by weight of fatty acid, and 30 to 50% by weight of alcohol based on the total weight of the lipid complex. In addition, the ceramide may be composed of 5 to 20% by weight of any of the natural ceramide and alkanolamide alone or a mixture thereof, but is not limited and optional in the present invention.

Alkanolamides as natural ceramides and pseudoceramides have a regular alternating arrangement of hydrophobic and hydrophilic layers, thus retaining a large amount of water in the hydrophilic layer, while the hydrophobic layer prevents the movement of moisture to maintain moisture in the skin. It regulates the movement of substances other than water, and works together with keratinocytes.

The natural ceramides are commercially available in a variety of extracts from microorganisms and the like, and the alkanolamides as pseudoceramides described above include myristyl oxostearamide monoethanolamine, myristyl arachidamide monoethanolamine, palmityl oxostear Amide monoethanolamine, palmityl arachidamide monoethanolamine, dihydroxyisopropyl myristyl oxostearamide, dihydroxyisopropyl myristyl oxoarakidamide, dihydroxyisopropyl palmityl oxostearamide, dihydrate Oxyisopropyl palmityl oxoarachidamide, or any mixture thereof, which may also be commercially purchased from the applicant.

In the present invention, alkanolamides as the natural ceramides and pseudoceramides described above can be used not only as a mixture thereof, but also as a single compound.

Cholesterol and derivatives thereof for forming a condition similar to epidermal lipids include cholesterol, cholesteryl acetate, cholesteryl stearate, cholesteryl palmitate, cholesteryl hydroxy stearate, cholesteryl nonanoate, soybean Sterols, or any mixture thereof. This component exhibits skin conditioning and skin protection effects and contributes to the formation of a multilamellar liquid crystal structure when mixed with the ceramide and fatty acid component described below in a specific ratio as described above.

In addition, as fatty acids for forming a state similar to the epidermal lipid component, palmitic acid, stearic acid, arachidic acid, behenic acid, palmitoleic acid, oleic acid, linoleic acid, linolenic acid, arachidonic acid or any thereof It may be a mixture of. In addition, various vegetable oils in the form of glyceride mixtures can be blended for the same purpose, and examples thereof include palm oil, palm kernel oil, coconut oil, olive oil, grape seed oil, acacia oil, sunflower seed oil, castor oil and the like. . However, fatty acids or glycerides having a chain length of 8 or less may be undesirable because they have skin irritation and may adversely affect the formation of multilamellar.

As other components other than the above components, higher alcohols such as cetyl alcohol, stearyl alcohol, behenyl alcohol, or any mixture thereof can be used for further stabilization of the multilamellar liquid crystal phase, and also depending on the purpose of application. Lubricants such as octyldodecanol and squalane may also be added.

Meanwhile, in the present invention, silicone oil and alkyl silane are added to improve water repellency, lubricity and usability, and as the silicone oil, methyl hydrogen polysiloxane, dimethyl polysiloxane, dimethyl siloxane, methyl phenyl polysiloxane, methyl phenyl siloxane, and organopolysiloxane are added. , Octamethyl cyclo tetra siloxane, deca methyl cyclo pentasiloxane, or any mixture thereof.

As said alkyl silane, octyl silane can be used typically.

In the present invention, the complex coating treatment of the surface of the inorganic powder using the lipid complex of the multi-lamellar structure containing the ceramide and silicone oil or alkyl silane, in addition to the skin-correcting effect of the powder, the excellent moisturizing power of the ceramide and silicone-based By synergistically harmonizing the strong water resistance and good feeling of use of oil or alkyl silane and excellent persistence, and compensating complementarily the agglomeration and inferior feeling of ceramide and the poor moisturizing property of silicone oil or alkyl silane, ceramide As well as the improvement and strengthening effect of the unique skin barrier function, it is excellent in skin affinity and skin adhesion, and can provide a cosmetic having good usability, durability and water repellency.

In the present invention, the composition ratio of the components constituting the lipid complex is important in forming a multi-lamellar structure similar to the multi-lamellar structure represented by lipids between keratinocytes of the skin, and the above-mentioned composition ratio required for the formation of the pseudo-lamellar structure is a human body. The ratio of constituents of lipid components between keratinocytes of the skin is completely different, which is believed to be due to the similar mechanism of action but similar molecular structure of pseudoceramide and natural ceramide.

If the content of ceramide and cholesterol exceeds the above-mentioned range or used alone, there is a possibility that the tendency of aggregation between each other is so strong that the multilamellar structure may not be formed well, and the usability may be lowered. If it is used in an amount less than, there is a possibility that the skin barrier strengthening or improving effect may be weak, and there is a fear that the moisture retention is lowered, which is not preferable.

On the other hand, when the content of fatty acids exceeds or falls short of the above-mentioned range, there is a possibility that the smooth formation of the multilamellar structure may not be achieved, which may increase the likelihood of deterioration of moisture retention.

In addition, when the content of alcohol is less than the above-mentioned range, there is a fear that the dissolution of ceramide is not smooth, on the contrary, if the content of the alcohol exceeds the above-mentioned range, it may not be preferable because it may cause a failure in the smooth formation of the multilamellar structure. .

On the other hand, in the present invention, the addition amount of silicone oil or alkyl silane added for the purpose of improving water repellency and usability and durability is important with respect to the addition of ceramide, and when the addition amount is less than 1.9% by weight based on the total weight of the composite coating powder, Not only is there a possibility that the expression of the above effects may be inadequate, and there is a fear that cross-aggregation of ceramide components may occur, as well as a decrease in usability and water repellency, which is not preferable. In the case of moisturizing and skin barrier function enhancement or improvement effect may be insufficient, may also be undesirable.

The weight of the powder itself in the composite coating powder according to the present invention as described above is 80 to 98% by weight, based on the total weight of the composite coating powder, when the weight exceeds 98% by weight is insufficient to modify the surface coating If the content is less than 80% by weight, the usability may be lowered, which is not preferable.

In addition, the content of the above-mentioned composite coating powder according to the present invention in the cosmetic may be included in an amount of 1 to 99% by weight, depending on the formulation.

Formulations of the cosmetic composition comprising the composite coating powder according to the present invention may be a powder and a base makeup cosmetic formulated with a liquid, cream, or stick type foundation, or an eye shadow, mascara, eyebrow powder, eye line, or lipstick. Point makeup cosmetics.

Next, the method for producing the composite coating powder according to the present invention will be described. The composite coating powder according to the present invention can be produced by any of a wet method and a dry method. In general, the wet method can stably perform surface treatment. While there are advantages, the process is complicated, expensive and low yield, while the dry method has the disadvantage that the powder is subjected to physical force and direct heat, but it is less expensive and the process is simple and efficient and effective.

Since the ceramide has a melting point of 100 ° C. or higher, a large amount of solvent and high temperature conditions are required to coat the powder. However, when a multilamellar structure is formed by applying a specific lipid complex as in the present invention, the phase transition temperature is about 48 ° C. Since the degree is lowered, the amount of solvent used can be reduced, and powder coating can be performed at a relatively low temperature.

Myristyl oxostearamide monoethanolamine, alkanolamide as a natural ceramide, or similar ceramide, myristyl arachidamide monoethanolamine, palmityl oxostearamide monoethanolamine, palmityl arachidamide monoethanolamine, or their Optional mixtures and lipid complexes consisting of cholesterol or derivatives thereof and fatty acids and alcohols may be dissolved in a solvent such as isopropanol or mixed with a silicone-based oil or an alkyl silane to simultaneously surface coat the powder surface, or The surface of the powder may be coated by surface coating in order.

When explaining the method for producing the composite coating powder according to the present invention by the wet method, the lipid complex containing ceramide is dissolved in an alcohol solution such as isopropanol, and then, the powder is added thereto, stirred and coated on the surface of the powder, followed by drying. Pulverize to a constant particle size.

Specifically, a lipid complex containing ceramide is added to alcohols maintained at a temperature of about 50 ° C. in a constant temperature water bath using a stirrer, completely dissolved using a stirrer, and mixed well while slowly adding inorganic powder while stirring. After stirring, the mixture is filtered using a vacuum pump, dried, and then crushed with a hammer mill to obtain a composite coating powder.

Here, the silicone-based oil or alkyl silane may be dissolved together with the lipid complex, or separately dissolved, followed by coating before or after the coating of the lipid complex.

The wet method can perform a fairly stable surface treatment but has a disadvantage of low yield.

Next, the method for producing the composite coating powder according to the present invention by the dry method is a method of stabilizing the coating structurally by dissolving a lipid complex including ceramide in a solvent and then uniformly spray coating and then heat treatment.

Specifically, the inorganic powder is dissolved in a solvent such as isopropyl alcohol or acetone by dissolving a lipid complex containing silicone oil or octyl silane and the aforementioned ceramide, such as methyl hydrogen polysiloxane or dimethyl polysiloxane, and then spraying or the like. After uniformly coating the composite coating, it is heated to about 80 ~ 200 ℃ to structurally stabilize the coating layer.

Here, the silicone-based oil or alkyl silane may be dissolved together with the above-described lipid complex or separately to be performed before or after the coating of the lipid complex, or simultaneously.

Hereinafter, the present invention will be described in more detail with reference to Examples, Comparative Examples, Test Examples, and Formulation Examples, which are intended to illustrate the present invention, but are not intended to limit or limit the present invention.

Example 1: Preparation of Composite Coating Powder

Natural ceramide Ceramide 3 (trade name: DS-Ceramide Y3O, manufactured by Doosan Glonet Co., Ltd.) and a pseudoceramide mixture of myristyl / palmityl oxostearamide monoethanolamine and myristyl / palmityl arachidamide (trade name PC -9S: manufactured by Neopharm Co., Ltd.), cholesterol, stearic acid, and stearyl alcohol in a ratio of 2: 8: 5: 35: 50 based on the weight percent, to prepare a lipid complex component, and then equilibrium with the lipid complex Isopropanol was added to dissolve the lipid complex.

Subsequently, 500 g of sericite (FSE (manufactured by SANSHIN Mining Co., Ltd.)) was added to a Henschel mixer and spray-coated with a mixture of 2.8 g of a lipid complex-dissolved isopropanol solution maintained at 65 ° C, and 3.5 g of dimethyl polysiloxane and 1.0 g of octyl silane, which were maintained at 65 ° C. It was. After stirring again, isopropanol was removed under reduced pressure to prepare a composite coating powder.

Example 2: Preparation of Composite Coating Powder

In Example 1 described above, talc (JA-46R: manufactured by Japan ASADA Co., Ltd.) was used instead of sericite, and myristyl / palmithyl oxostearamide monoethanolamine and myristyl / palmityl arachid without using natural ceramide. Using only a pseudoceramide mixture (trade name PC-9S manufactured by Neofam, Inc.) of amide, the pseudoceramide, cholesterol, stearic acid, and stearyl alcohol were quantified in a ratio of 10: 5: 35: 50 by weight. A composite coating powder was prepared according to the same procedures and conditions as in Example 1 except that the lipid complex component was prepared.

Example 3: Preparation of Composite Coating Powder

A composite coating powder was prepared according to the same procedures and conditions as in Example 2, except that mica (Y-2200: manufactured by Japan Mica) was used instead of talc in Example 2.

Comparative Example 1: Preparation of Composite Coating Powder

Pseudo-ceramide mixture of myristyl / palmityl oxostearamide monoethanolamine and myristyl / palmityl arachidamide (trade name PC-9S manufactured by Neofam, Inc.), cholesterol, stearic acid and stearyl alcohol Lipid complex components were prepared by quantifying at a ratio of 10: 5: 35: 50, and then the lipid complex was dissolved by adding the lipid complex and isopropanol with the same weight.

Subsequently, 500 g of talc (JA-46R (manufactured by Japan ASADA Co., Ltd.)) was added to a Henschel mixer and spray-coated with 4.5 g of a lipid complex-dissolved isopropanol solution maintained at 65 ° C while stirring at high speed, and the isopropanol was removed under reduced pressure to obtain a composite coating powder. Prepared.

The same procedure as in Example 2 was conducted except that no dimethyl polysiloxane or alkyl silane was used.

Comparative Example 2: Preparation of Composite Coating Powder

4.5 g of an isopropanol solution (maintained at 70 ° C.) in which only 500 g of talc (JA-46R (manufactured by Japan ASADA Co., Ltd.)) was added to a Henschel mixer and dissolved at high speed while dissolving only the above pseudoceramide PC-9S (manufactured by Neofam Co., Ltd.), A mixture of 3.5 g of dimethyl polysiloxane and 1.0 g of octyl silane was spray coated, and isopropanol was removed under reduced pressure to prepare a composite coating powder.

Except for the above pseudoceramide, the same procedure and conditions as in Example 2 were carried out except that the lipid complex consisting of cholesterol, fatty acid and alcohol in Example 2 was not used.

Test Example 1 Observation of Multilamellar Structure

The lipid complexes of Examples 1 to 3 and Comparative Examples 1 and 2 were observed with a polarizing microscope to observe the formation and extent of multilamellar structures.

In Examples 1 to 3 and Comparative Example 1, it was confirmed that the liquid crystal phase due to the formation of a multi-lamellar structure was very strong, whereas in Comparative Example 2, such a liquid crystal was not found.

Test Example 2: Evaluation

The surface coating powders of Examples 1 to 3 and Comparative Examples 1 and 2 were applied to 30 female panels of 20 to 30 years old. Very good for use, adhesion, spreadability, water repellency, and smoothness. 5 points, good It was evaluated by a five-point scale evaluation method of 4 points, usually 3 points, somewhat inferior 2 points, 1 inferiority, the results are shown in Table 1 below.

Table 1

	Example 1	Example 2	Example 3	Comparative Example 1	Comparative Example 2
Average score	4.6	4.5	4.3	3.8	4.1

Test Example 3: Evaluation of Persistence

Thirty female panelists aged 20 to 30 were evaluated by the five-point scale method described above for the persistence and moisturizing of the powders after they were applied for a certain period of time. Indicates.

TABLE 2

Composition	Example 1	Example 2	Example 3	Comparative Example 1	Comparative Example 2
Average score	4.6	4.4	4.5	4.2	3.6

Test Example 4: Skin function improvement effect

To measure the skin hydration and transepidermal water loss (TEWL) in the three areas on the inner side of the upper arm of both arms for 30 female panelists aged 20 to 30 years. , CM825, Courage & Khazaka, Koln, Germany) and moisture evaporation meter (Tewameter, TM300, Courage & Khazaka, Koln, Germany). Thereafter, tape-stripping was repeatedly performed using D-Squame tape (Cu-Derm Corporation, Dallas, USA) to induce acute skin barrier damage. After acute skin barrier damage, the skins of three parts of the injured barrier were immediately applied to Examples 1 to 3 and Comparative Example 1 and Comparative Example 2, and then applied once daily to change the function of the skin over time. As a result of the evaluation, in the composite coating powder of Examples 1 to 3, no significant difference was observed from Comparative Example 1, but compared with Comparative Example 2, the recovery of the water content in the stratum corneum was statistically significantly increased. As can be seen, it was confirmed that the recovery rate of percutaneous moisture loss was significantly superior to that of Comparative Example 2.

Formulation Example 1: W / O Emulsifying Foundation

W / O emulsified foundation was prepared according to the following compositional components and composition ratios.

TABLE 3

Composite Coating Powder of Example 1	10% by weight
kaoline	3 wt%
Titanium dioxide	5 wt%
Yellow iron oxide	1 wt%
Black iron oxide	0.15% by weight
Octyl dodecanol	10% by weight
Purified water	Balance
1,3-butylene glycol	5 wt%
glycerin	5 wt%
Methyl paraffin	Quantity
Spices	Quantity

A mixture of purified water, 1,3-butylene glycol, glycerin, and methyl paraffin was heated and stirred at 70 ° C., then powder was added, mixed and stirred with a homo mixer, and octyl dodecanol and an appropriate amount of silicone oil heated to 70 ° C. were added thereto. After stirring and mixing with a homo mixer again, the fragrance was added in the state cooled to 40 degreeC, and it cooled to room temperature.

Formulation Example 2: Oily Foundation

To the foundation was prepared in the composition and composition ratio as shown in Table 4.

Table 4

Composite coating powder of Example 2	Balance
kaoline	12 wt%
Titanium dioxide	10% by weight
Red iron oxide	1 wt%
Yellow iron oxide	2 wt%
Black iron oxide	0.5 wt%
Paraffin wax	3 wt%
Carnauba wax	12 wt%
Microcrystalline wax	3 wt%
beeswax	6% by weight
Squalane	4 wt%
Isopropyl Palmitate	12 wt%
Isopropyl myristate	5 wt%
Tocopherol Acetate (Antioxidant)	2 wt%
Spices	Quantity

The above-mentioned composition of Table 4 was dissolved at 85 ° C. and sufficiently mixed, and then the powder was slowly added while stirring, pulverized and dispersed using a colloid mill, and then flavored, defoamed, and cooled.

The composite coating powder for cosmetics according to the present invention has the effect of improving and strengthening the skin barrier function by the lipid complex while maintaining the function of the inorganic powder itself, and strengthening and improving the skin barrier by commercializing the lipid complex through the multilayer lamellar structure. In addition to the effect, it has a soft feeling, excellent skin protection effect, high water repellency and excellent dispersibility, and thus the cosmetic composition containing the functional composite coating powder for cosmetics, such as sensitive skin or dry skin, or atopic dermatitis Due to impairment of the skin barrier function, it can be effectively applied to skin, which is difficult to use general makeup cosmetics.

Claims

80 to 98% by weight of inorganic powder, 0.1 to 10% by weight of lipid complex, and 1.9 to 10% by weight of silicone oil or alkyl silane;

The lipid complex is based on the total weight of the lipid complex, natural ceramide or alkanolamide, or 5 to 20% by weight of natural ceramide and alkanolamide, 5 to 10% by weight of cholesterol or derivatives thereof, 20 to 40% by weight of fatty acid, and Composed of 30-50 wt% alcohol

Composite coating powder for cosmetics.
The composite coating powder for cosmetic according to claim 1, wherein the natural ceramide is at least one natural ceramide selected from the group consisting of ceramide-1, ceramide-3, ceramide-3B, ceramide-4, ceramide-6.
The alkanolamide according to claim 2, wherein the alkanolamide is myristyl oxostearamide monoethanolamine, myristyl arachidamide monoethanolamine, palmityl oxostearamide monoethanolamine, and palmityl arachidamide monoethanolamine, di Selected from the group consisting of hydroxyisopropyl myristyl oxostearamide, dihydroxyisopropyl myristyl oxoarakidamide, dihydroxyisopropyl palmityl oxostearamide, dihydroxyisopropyl palmityl oxo arachidamide Composite coating powder for cosmetics which is at least 1 type of alkanolamide.
The method of claim 1, wherein the cholesterol and derivatives thereof are cholesterol, cholesteryl acetate, cholesteryl stearate, cholesteryl palmitate, cholesteryl hydroxy stearate, cholesteryl nonanoate, and soybean. Composite coating powder for cosmetics which is at least 1 sort (s) of compound chosen from the group which consists of sterols.
The fatty acid according to claim 1, wherein the fatty acid is at least one fatty acid selected from the group consisting of palmitic acid, stearic acid, arachidic acid, behenic acid, palmitoleic acid, oleic acid, linoleic acid, linolenic acid, and arachidonic acid. Composite coating powder for cosmetics.
The composite coating powder for cosmetics according to claim 1, wherein the alcohol is at least one alcohol selected from the group consisting of cetyl alcohol, stearyl alcohol, and behenyl alcohol.
2. The silicone oil according to claim 1, wherein the silicone oil is selected from the group consisting of methyl hydrogen polysiloxane, dimethyl polysiloxane, dimethyl siloxane, methyl phenyl polysiloxane, methyl phenyl siloxane, organopolysiloxane, octamethyl cyclo tetra siloxane and deca methyl cyclo pentasiloxane. Composite coating powder for cosmetics which is at least 1 sort (s) of compound chosen.
The inorganic powder according to claim 1, wherein the inorganic powder is titanium dioxide, zirconium oxide, talc, dolomite, sericite, magnesium carbonate, calcium carbonate, aluminum silicate, magnesium silicate, kaolin, barium sulfate, barium carbonate, A composite coating powder for cosmetics, which is at least one inorganic powder selected from the group consisting of boron nitride, diatomaceous earth, zinc oxide, zirconium oxide, yellow iron oxide, black iron oxide, ultramarine blue, blue blue, chromium oxide, and chromium hydroxide.
A cosmetic composition comprising 1 to 99% by weight of the above-mentioned composite coating powder for cosmetics according to any one of claims 1 to 7, based on the weight of the composition before cosmetics.