KR102153070B1 - Makeup powder cosmetic composition with excellent coverage effect and skin-affinity, and method of preparing the same - Google Patents

Abstract

The present invention relates to a cosmetic composition comprising a coated boron nitride, sericite and a pasty oil binder. The color powder cosmetic composition of the present invention is naturally excellent in covering power without cloudiness, and excellent adhesion and application properties. In addition, it has excellent molding stability and drop stability of cosmetics. The color powder cosmetic composition of the present invention does not have a makeup agglomeration phenomenon due to agglomeration of oils and particles, and skin makeup is expressed smoothly, so that a smooth and uniform makeup expression is possible.

Description

Makeup powder cosmetic composition with excellent coverage effect and skin-affinity, and method of preparing the same}

The present invention relates to a color powder cosmetic composition comprising coated boron nitride, sericite, and a paste oil binder, which has excellent coverage and adhesion, and has a smooth skin expression. will be.

Typical base makeup cosmetics include liquid foundation or solid foundation. Liquid foundation is a water-in-oil type foundation and is widely used because it is strong against perspiration, sebum and makeup collapse. The solid foundation has better coverage than the liquid foundation, but there is a limit because it is heavy in fit and spreadability when applied to the skin. The types include compact, two-way cake, pressed powder, or compressed pact composed of powder as the main component, and the purpose of the product is to cover spots or blemishes, and to provide skin coverage and at the same time express bright skin. will be.

The makeup cosmetics should have both application properties, adhesion properties, and makeup persistence. In particular, a liquid foundation is advantageous for showing a soft application and a moist feeling, but its persistence is somewhat insufficient, and a solid foundation has technical limitations to improve it to a level that can feel the moist feeling, and makeup lift due to particle agglomeration occurs. I can.

As a result of confirming the attributes required in makeup cosmetics through consumer surveys, coverage and adhesion were ranked highest, and were identified as the most requested basic attributes. This is also a very important quality attribute when choosing a product.

In general, in powder makeup cosmetics, fine-grained titanium oxide is blended as a method to improve the coverage, which is liable to cause a stiff application and a clouding phenomenon that causes the skin to float. Since fine titanium oxide particles usually have a small average particle diameter of 0.2 to 0.3 µm, it is difficult to uniformly disperse them in cosmetics, and because they are often present in agglomerated state in a part of the cosmetics, white is not noticeable as an external color of cosmetics. However, when the cosmetic is applied to the skin, the aggregated state of the fine particles is released and a strong white color appears, causing a cloudy phenomenon.

In order to solve these shortcomings, Korean Patent Laid-Open Publication No. 10-2009-0069328 discloses a cosmetic film that does not float by supporting a group of particles made of titanium oxide on a flake-like substrate, and coating the surface with a composite oxide including titanium and iron. Although a method of imparting an appropriate hiding power has been proposed, there is a limitation in controlling the composite powder because the flaky powder used as a substrate has little covering power, and the covering power varies depending on the amount and alignment of titanium oxide coated on the substrate. In addition, even if a large amount of the composite powder is mixed with the cosmetic, it is difficult to provide the desired amount of coverage. In addition, Korean Patent Publication No. 10-1648676 discloses that the porosity of porous polymethyl methacrylate (PMMA) is increased, and titanium dioxide nanoparticles are impregnated thereto to increase oil absorption and to develop a composite powder for cover pigment. However, since the average pore size of polymethyl methacrylate is 15 to 500 nm and the average particle size of titanium dioxide to be impregnated is 200 to 300 nm, in theory, it is easy to prepare impregnated composite powder. The problem is that the yield impregnated with is relatively poor. In addition, a composite powder for skin cover pigment was developed by impregnating the content of titanium dioxide in 50% by weight of the total composite powder. Since the powder used as the base material is a spherical polymethyl methacrylate, there is a limit to imparting coverage. There is a problem.

In addition, if titanium dioxide is used alone, it is very difficult to uniformly disperse it in the manufacturing process of a cosmetic such as a powder-like foundation, as described above.In particular, in the case of fine titanium oxide, the appearance color of the cosmetic and the cosmetic may be applied to the skin. The color of the cosmetic film may be different. In addition, when the cosmetic is applied to the skin, since a rough feeling peculiar to fine-grained titanium oxide is felt, the spreadability is lowered and the adhesion is not good. This rough feeling of titanium dioxide is also due to its shape, because most of the titanium dioxide is made up of a needle shape, a rod shape, and a spindle shape.

In the case of powder foundation cosmetics, adhesion and spreadability are controlled by appropriately mixing plate-shaped particles and spherical particles. When the plate-shaped particles are blended as much as possible, adhesion is improved, and at the same time, the spreadability when applied to the skin decreases, and there is a disadvantage that the cosmetic is not taken well by the cosmetic tools used when applying to the skin. In addition, a greasing phenomenon that occurs when a cosmetic material is applied using a cosmetic tool such as a puff or brush may occur. As another method, oil is used for molding in a powder-type foundation.There is a method of compounding a high content of ester oil in the form of an oil binder as an oil binder, but the total amount of oil is limited, so there is a limit to the formulation of ester oil. have. In addition, various methods have been proposed, such as a method of modifying the powder surface with a natural wax or a synthetic wax, and a formulation including an emulsion binder of an oil-in-water type containing a polyol, an emulsion, starch or modified starch, etc. It contains the limitations of If the powder surface is coated or modified with a natural wax or synthetic wax, it is difficult to sufficiently exhibit the effect with a small amount, and if a large amount is coated, the surface is stained or the product is puffed due to the stickiness and bonding power of the wax. B. When picking up with a brush or the like, a phenomenon in which the product is not taken, that is, a greasing phenomenon or a caking phenomenon may occur. In addition, the cosmetic composition of the water-in-water emulsion formulation containing starch or modified starch and a mixture of a polyol and an oil agent takes a sintering process to evaporate the moisture in the formulation and improve the stability. Since the remaining cosmetic material turns dry, adhesion may not be exhibited when applied to the skin. In addition, the firing-type makeup cosmetics are being formulated using a water-dispersible binder, a water-in-oil or water-in-water emulsion binder, but there are surface hardness and cracking phenomena peculiar to a firing-type cosmetic, and drop stability is low and color expression is insufficient. There is one drawback.

As such, in makeup cosmetics, coverage and adhesion are essential elements, but in particular, powder formulations have limitations in improving adhesion due to formulation characteristics. In addition, the powder-type compressed formulation may cause a caking phenomenon or a grazing phenomenon, and when applying the product, a makeup aggregation phenomenon or a makeup lifting phenomenon may occur. As described above, various methods have been attempted to improve the adhesion and coverage of cosmetics, but their effectiveness is still insufficient and the effect that consumers feel is not exerted.

Under the above background, the present inventors completed the present invention by confirming that by stabilizing and applying boron nitride to a cosmetic composition, both coverage and adhesion can be improved at the same time, and a smooth skin makeup expression can be realized without makeup lumping.

It is an object of the present invention to provide a color powder cosmetic composition with improved coverage and adhesion, and a method for producing the same.

A first aspect of the present invention provides a color powder cosmetic composition comprising a coated boron nitride, sericite and a paste oil binder.

A second aspect of the present invention comprises the steps of: (a) stirring a powder part including coated boron nitride and sericite; (b) spraying an oil part to the powder part; And (c) it provides a method for producing a color powder cosmetic composition comprising the step of mixing, pulverizing and filtering the product of step (b).

Hereinafter, the present invention will be described in detail.

The present inventors tried to increase the covering power, except for the method of using titanium dioxide, which is commonly used in color cosmetics, and at the same time tried to improve the adhesion. As a result, it was found that when boron nitride was applied to a color powder cosmetic composition, it was possible to develop a cosmetic composition having excellent coverage and smooth spreadability of the cosmetic composition and at the same time having less white turbidity. However, conventionally, when boron nitride is applied to a cosmetic composition to improve application properties and feeling of use, there is a disadvantage that the product is easily damaged during a powder blow phenomenon and a drop impact, and thus there is a limitation in that it cannot be mixed in a large amount. The present inventors confirmed that the moldability was improved by stabilizing and applying boron nitride in order to solve this disadvantage and completed the present invention.

In an embodiment of the present invention, a cosmetic composition to which a coated boron nitride is applied, and a cosmetic composition to which titanium dioxide, which is generally used for the purpose of increasing coverage, was prepared and compared (Example 1 and Comparative Example 1), In the case of the cosmetic composition to which the coated boron nitride was applied, it was confirmed that the coverage and adhesion were excellent, there was no cloudiness, and the overall feeling of use was excellent.

In the present invention, boron nitride may be used as a coated powder having surface properties modified or coated to improve moldability. Specifically, by coating a film forming agent on the surface of the powder, it is possible to improve adhesion to the skin and enhance mutual bonding strength with other powders. More specifically, the boron nitride is an acrylate / stearyl acrylate / dimethicone methacrylate copolymer (acrylates / stearyl acrylate / dimethicone methacrylated copolymer), dimethicone (dimethicone), or a mixture thereof coated with the used. I can.

The boron nitride may be coated by a wet or dry method, and preferably wet coated boron nitride may be used.

The acrylate/stearyl acrylate/dimethicone methacrylate copolymer is a material used as a film forming agent or hair conditioning agent, and includes acrylic acid, methacrylic acid, or simple esters thereof ( Ester) is a copolymer of a monomer composed of one of, ethylhexylacrylate and dimethicone methacrylate. The dimethicone is a silicone material used to impart a water repellent function.

In the present invention, the solvent used when coating the boron nitride may be one or more selected from the group consisting of ethanol, isopropyl alcohol, etc., but is not limited thereto.

In addition to the above compounds, various coating materials may be used to modify or coat the surface properties of boron nitride, thereby affecting physical properties such as feeling of use, application properties, or stability of the cosmetic composition.

The coating material of boron nitride is 0.1 to 2% by weight of acrylate/stearyl acrylate/dimethicone methacrylate copolymer, specifically 0.5 to 1.5% by weight, more specifically 0.5 to 2% by weight of the total weight of the cosmetic composition. 1.0% by weight and 0.1 to 3% by weight of dimethicone, specifically 1 to 2% by weight, more specifically 0.5 to 1.0% by weight may be used. When boron nitride is coated with the compounds of the specific weight ratio and used, the adhesion and moldability of the cosmetic composition can be best exhibited.

In an embodiment of the present invention, when boron nitride is coated with an acrylate/stearyl acrylate/dimethicone methacrylate copolymer and dimethicone (Example 2), when not coated (Comparative Example 2) ), and as a result of comparing the cosmetic composition in the case of coating treatment with another coating material (Comparative Example 3), in the case of a composition coated with acrylate/stearyl acrylate/dimethicone methacrylate copolymer and dimethicone, It was confirmed that the covering power, adhesion, and feeling of use were excellent, and there was little lumping or lifting of makeup (Table 8).

In the present invention, boron nitride is a powder having a lattice structure having a hexagonal plate structure, and the degree of moldability of the cosmetic composition may be different depending on the average particle diameter of the boron nitride. The average particle diameter of the boron nitride may be 3 to 24 µm, specifically 5 to 20 µm, and more specifically 6 to 12 µm.

The present inventors selected boron nitride having an optimum particle diameter through a moldability experiment according to the average particle diameter for three types of boron nitride (average particle diameter 6 µm, 12 µm, 16 µm) and mixed and used it. When boron nitride with an average particle diameter of about 16 µm was mixed alone, the moldability was not good, so when pressing the cosmetic material on the plate, it cracked or cracked the surface, causing a drop. It was also confirmed that the results were not good for stability. When boron nitride with an average particle diameter of 6 µm and boron nitride with an average particle diameter of 12 µm were blended, it was confirmed that the most excellent moldability was exhibited, the feeling of use was smooth, and the phenomenon of powder flying during skin application was small.

That is, when a cosmetic composition is prepared by mixing two types of 6 µm and 12 µm boron nitride with different average particle diameters, it is possible to develop a cosmetic composition having excellent moldability and excellent coverage and adhesion. In addition, the most excellent moldability can be exhibited in the case of boron nitride coated as previously suggested.

The boron nitride may be included in an amount of 5 to 50% by weight, specifically 10 to 45% by weight, and more specifically 15 to 40% by weight, based on the total weight of the cosmetic composition. When the content of boron nitride is less than 5% by weight, the improvement in coverage and adhesion is not sufficiently expressed or is almost insignificant. If the content of boron nitride is more than 50% by weight, the moldability is deteriorated, causing the product to break when falling, and to cause makeup lumping, and powder when picking up the product using cosmetic tools such as puffs and brushes. There was a phenomenon in which a lot of powder was formed, and makeup was lifted in which cosmetics were irregularly arranged in pores or irregularities.

The cosmetic composition of the present invention contains sericite in order to show a fine and soft feeling of use. The average particle diameter of sericite applied to the composition of the present invention may be about 5 to 20 µm, specifically 6 to 16 µm, and more specifically 8 to 12 µm.

The sericite may be coated or not coated without limitation. Specifically, sericite may be coated with silicone, emulsifier, or a mixture thereof. The material used for the coating treatment may be dimethylpolysiloxane having water and oil resistance properties, alkylsilane, or a mixture of two materials, but is not limited thereto.

Specifically, the sericite may be coated, and more specifically, coated with dimethicone, alkylsilane, or a mixture thereof may be used.

The coating material of the sericite may be 0.5 to 2% by weight of dimethicone and 0.5 to 2% by weight of alkylsilane based on the total weight of the cosmetic composition. When sericite is coated with the specific weight ratio of dimethicone and alkylsilane, skin adhesion of the cosmetic composition can be best exhibited.

In the present invention, the sericite may be included in 1 to 25% by weight, specifically 2 to 20% by weight, and more specifically 3 to 15% by weight, based on the total weight of the cosmetic composition. When the content of the sericite is less than 1% by weight, the effect of adhesion and smooth application is not sufficiently exhibited or is almost insignificant. If the content of sericite is more than 25% by weight, makeup clumping occurs, and when a product is picked up using cosmetic tools such as puffs and brushes, a lot of powder is formed and there is a powdery phenomenon. There is a problem that stability is also deteriorated.

In one embodiment of the present invention, when boron nitride coated with an acrylate/stearyl acrylate/dimethicone methacrylate copolymer and dimethicone is applied (Example 2) and when sericite is additionally included As a result of comparing (Example 3), it was confirmed that when sericite was additionally included in the coated boron nitride, a more excellent synergistic effect appeared in the evaluation of the cosmetic composition (Table 8).

The cosmetic composition of the present invention includes an oil binder in order to improve the moldability of boron nitride because it is a formulation made by molding a cosmetic composition on a certain plate as a compressed powder, a compressed pact, a powder foundation, or a powder pact.

The oil binder may be one or more selected from ester oils, hydrocarbon oils, silicone oils, and the like. The oil specifically includes dicaprylyl carbonate, diisostearyl malate, butylene glycol dicaprylated/dicaprate, cetyl ethylhexanoate ( cetyl ethylhexanoate), hexyl laurate, polyglyceryl-2 triisostearate, pentaerythrityl tetraisostearate, triethylhexanoin, etc. Hydrocarbon oils such as ester oil, polybutene, hydrogenated polyisobutene, and phytosqualane, and phenyl trimethicone, dimethicone, etc. One or more silicone oils or a mixture of two or more silicone oils may be used, but the present invention is not limited thereto.

The oil binder is preferably a paste-like ester oil. Oil binders may include hydrogenated polyisobutene, or phytosteryl/isostearyl/cetyl/stearyl/behenyldimer dilinoleate (phytosteryl/isostearyl/cetyl/stearyl/behenyl dimer dilinoleate). It may be, and the two materials may be applied respectively or may be used by mixing, but is not limited thereto.

In one embodiment of the present invention, a composition in which hydrogenated polyisobutene and phytosteryl/isostearyl/cetyl/stearyl/behenyldimerdilinoleate are applied together as an oil binder (Example 4), and silicone oil As a result of comparing the composition to which phosphorus phenyltrimethicone and dimethicone were applied (Comparative Example 5), as an oil binder, hydrogenated polyisobutene and phytosteryl/isostearyl/cetyl/stearyl/behenyldimerdilinoleate When applied, it was confirmed that it received excellent evaluation in the evaluation of spreadability, adhesion, and powder flying phenomenon (Table 9).

In the present invention, the type and content of the oil binder may be very important in order to improve the molding of boron nitride and to impart adhesion and smooth application properties. In one embodiment of the present invention, experiments were conducted according to the content and type of oil binders used in cosmetics such as powder foundation, compressed powder, and compressed pact to improve moldability, and a large amount of sericite was mixed to improve adhesion. I did. It was confirmed that the color powder cosmetic composition prepared as described above has excellent coverage and adhesion, and at the same time exhibits a smooth makeup effect (Experimental Example 1 Table 9).

The oil binder may be included in an amount of 2.0 to 15% by weight, specifically 3 to 11% by weight, and more specifically 5 to 10% by weight, based on the total weight of the cosmetic composition. If the content of the oil binder is more than 15% by weight, when the product is picked up using cosmetic tools such as puffs and brushes, the caking phenomenon in which the oil clumps due to excess oil, and grazing ( greasing) may occur. If the content of the oil binder is less than 2.0% by weight, there is a disadvantage in that it is impossible to make a cosmetic with a compressed formulation due to poor moldability.

In the present invention, the boron nitride and sericite may be included in a weight ratio of 0.2:1 to 2:1 (boron nitride: sericite). When boron nitride and sericite are included in the weight ratio, the covering power and adhesion of the cosmetic composition may be best exhibited. In addition, the boron nitride, sericite, and oil binder may be included in a weight ratio of 1:0.2 to 1:0.6 (boron nitride and sericite: oil binder). When boron nitride, sericite, and oil binder are included in the weight ratio, the cosmetic composition has excellent coverage and adhesion, and a smooth makeup effect can be satisfied.

In the present invention, the term "powder" may mean an aggregate of solid materials having a particle size of 1 mm or less. The powder that can be used in the composition of the present invention essentially contains boron nitride and sericite coated as described above, and thus is selected from the group consisting of extender pigments, colored pigments, white pigments, etc. that are commonly used in the cosmetic field. Any one or more may be included, and specifically an extender pigment may be included.

The cosmetic composition of the present invention includes an inorganic pigment including talc, mica, kaolin, alumina, barium silicate, muscovite mica, synthetic mica, magnesium carbonate, zeolite, etc. as an extender pigment, and an organic material including polyethylene powder, nylon powder, polystyrene powder, etc. It may include any one or more selected from the group consisting of pigments, etc., but is not limited thereto. Constitution pigments commonly known in the art, for example, constitutional pigments described in [Modern Cosmetics, Jo Wan-gu, Rang Mun-jung, Bae Deok-hwan, Korean Academic Information Co., Ltd., 2007.02 publication] may be used.

As the extender pigment, talc coated with fatty acids, silicone, or a mixture thereof may be additionally included. Specifically, as the talc, dimethicone and talc coated with methicone may be used, and in this case, the spreadability and adhesion of the cosmetic composition are excellent, the powder scattering phenomenon is reduced, and moldability and drop stability are improved. However, it is not limited to dimethicone and talc coated with methicone, and talc coated with a material including an emulsifier of fatty acid and amino acid or ester oil may be included.

Preferably, the extender pigment may be hydrophobized. Preferably, the extender pigment may be used by modifying the surface of one or more selected from the group consisting of silicones, hydrocarbons, fluorine, alkyl hydrogen polysiloxanes, surfactants, and natural and synthetic waxes.

The extender pigment may be included in 5 to 40% by weight, preferably 10 to 30% by weight, and more preferably 15 to 25% by weight, based on the total weight of the cosmetic composition. When the extender pigment is less than 5% by weight, the spreadability may be deteriorated, and when it is more than 40% by weight, powder agglomeration may occur.

In the cosmetic composition of the present invention, titanium dioxide or zinc oxide coated with one or more selected from the group consisting of silicones, ester oils, aluminum hydroxide and stearic acid as a white pigment may be used. Not limited.

The composition of the present invention may further include any one or more selected from the group consisting of fragrances, colorants, preservatives, oxidation stabilizers, sunscreen agents, pearl agents, etc., within a range that does not degrade the effect of the composition in addition to the above components. . The composition may be a solid stick or cake formulation, preferably any one powder formulation selected from the group consisting of pressed powder, pressed pact, powder pact, powder foundation, foundation pact, pressed powder foundation, etc. It is not limited thereto.

The composition of the present invention comprises 5 to 50% by weight, specifically 15 to 40% by weight, of boron nitride coated with acrylate/stearyl acrylate/dimethicone methacrylate copolymer and dimethicone based on the total weight of the cosmetic composition, Alkyl silane coated sericite 1 to 25% by weight, specifically 3 to 15% by weight, hydrogenated polyisobutene 0.1 to 5% by weight, specifically 0.5 to 2% by weight, phytosteryl/isostearyl/cetyl /Stearyl/behenyldimerdilinoleate 0.1 to 5% by weight, specifically 0.5 to 2.5% by weight. Specifically, the cosmetic composition may additionally include talc coated with dimethicone or methicone. A cosmetic composition comprising a combination of ingredients having a specific weight ratio as described above has excellent coverage and adhesion with almost no whitening phenomenon, improves soft application properties, and enables smooth skin makeup expression.

In addition, the present invention comprises the steps of (a) stirring the powder part including coated boron nitride and sericite; (b) spraying an oil part to the powder part; And (c) it provides a method for producing a color powder cosmetic composition comprising the step of mixing, pulverizing and filtering the product of step (b).

Specifically, (a) stirring a powder portion comprising an acrylate/stearyl acrylate/dimethicone methacrylate copolymer and boron nitride coated with dimethicone, and sericite treated with an alkyl silane coating; (b) spraying an oil part containing hydrogenated polyisobutene and phytosteryl/isostearyl/cetyl/stearyl/behenyldimerdilinoleate to the powder part; And (c) it provides a method for producing a color powder cosmetic composition comprising the step of mixing, pulverizing and filtering the product of step (b). More specifically, the step (a) may additionally include talc coated with a fatty acid, an emulsifier, or a mixture thereof, and in this case, the spreadability, adhesion, moldability and drop stability of the cosmetic composition will be remarkably improved. I can.

The color powder cosmetic composition according to the present invention has excellent coverage and adhesion, and has no makeup lumping phenomenon, so that skin curvature is not emphasized and a smooth finish can be realized, thereby realizing excellent skin expression.

1 is a comparison of skin conditions before and after applying the cosmetic composition of Example 3.
Figure 2 shows the skin release rate of the pressed powder prepared in Examples 1 to 3 and Comparative Examples 1 to 4.

Hereinafter, the present invention will be described in more detail through examples. However, these examples may be modified in various forms, and the scope of the present invention is not limited to these examples. These examples are provided to more completely explain the present invention to those of ordinary skill in the art.

Example 1-4 and Comparative example 1-5: tint powder Cosmetic Produce

1-1. Boron Nightly Formability and stability evaluation according to average particle diameter

The present inventors confirmed the optimum particle diameter of boron nitride suitable for application of the cosmetic composition through an experiment for evaluating moldability and stability according to the average particle diameter of boron nitride prior to the production of a color powder cosmetic containing boron nitride.

Three types of boron nitrides having an average particle diameter of 6 µm, 12 µm, and 16 µm were targeted, and a composition including three types of boron nitride and a mixture thereof was prepared according to the composition ratio shown in Table 1 below. When this was pressed on a plate, it was observed whether a crack phenomenon or a crack phenomenon in which the surface was cracked was caused, and the moldability of each cosmetic A to E was compared.

division A B C D E Talc To 100 To 100 To 100 To 100 To 100 Synthetic mica 5.0 5.0 5.0 5.0 5.0 6 μm boron nitride 40.0 - - - - 6 μm boron nitride and 12 μm boron nitride - 40.0 - - - 12 μm boron nitride - - 40.0 - - 12 μm boron nitride and 16 μm boron nitride - - - 40.0 - 16 μm boron nitride - - - - 40.0 Iron oxide pigment 2.75 2.75 2.75 Hydrogenated Polyisobutene 0.5 0.5 0.5 Phytosteryl/isostearyl/cetyl/stearyl/behenyldimerdilinoleate 2.0 2.0 2.0

The moldability evaluation of each cosmetic was evaluated on the basis of the criteria of excellent: ○, normal: △, and bad: X. As shown in Table 2 below, when boron nitride with an average particle diameter of 16 µm was mixed alone (E), the moldability was not good and cracking and cracking occurred, and the drop stability was also poor. When boron nitride with an average particle diameter of 6 µm and boron nitride with an average particle diameter of 12 µm are blended (B), it can be confirmed that the most excellent moldability is exhibited, the feeling of use is smooth, and there is little powder scattering that occurs when applying the skin. there was. Accordingly, a mixture of boron nitride having an average particle diameter of 6 μm and 12 μm having the best moldability and stability was used in the preparation of the cosmetic composition of this experiment.

division A B C D E Formability ○ ○ △ Ⅹ Ⅹ Crack phenomenon Does not occur Does not occur Occurs Occurs Occurs Hardness 28 25 20 15 13 Drop stability
(Damage time) 3rd time 3rd time Episode 2 1 time 1 time Spreadability
(Relative evaluation) 2nd priority 1st priority Rank 3 Rank 4 Rank 5

1-2. Example 1 and Comparative example One

The cosmetic compositions of Examples 1 to 4 and Comparative Examples 1 to 5 were prepared by the following common procedure. After the powder part was added to the Henschel mixer, the mixture was mixed at high speed (800-1200 rpm) for about 5 minutes, and the oil part was sprayed while stirring at a low speed (400-600 rpm). Then, the mixture was mixed for about 3 minutes at high speed (800-1200 rpm) on a Henschel mixer, and then pulverized twice using an atomizer, and then filtered through 30 mesh. The semi-finished product through the series of manufacturing processes was molded for 1 to 3 seconds at a pressure of 30 to 50 kgf/cm ² . According to the content composition of the components shown in Tables 3 to 5 below in the same manner as above, a color powder cosmetic to which various composition ratios were applied was prepared.

As shown in Table 3 below, in Example 1 and Comparative Example 1, a cosmetic composition to which an acrylate/stearyl acrylate/dimethicone methacrylate copolymer and a boron nitride treated with a wet coating treatment with dimethicone were applied, and in general A cosmetic composition to which titanium dioxide used for the purpose of increasing coverage was applied was prepared.

division Example 1 Comparative Example 1 Alkylsilane and dimethicone coated talc To 100 To 100 Synthetic mica 5.0 5.0 Silica 3.0 3.0 Sericite with alkyl silane coating 5.0 5.0 Boron nitride coated with acrylate/stearyl acrylate/dimethicone methacrylate copolymer and dimethicone 30.0 - Titanium dioxide - 20.0 Iron oxide pigment 2.75 2.75 Hydrogenated Polyisobutene 0.5 0.5 Phytosteryl/isostearyl/cetyl/stearyl/behenyldimerdilinoleate 2.0 2.0 Dimethicone 1.0 1.0 COMDIOR 0.5 0.5 Spices 0.12 0.12

1-3. Example 2-3 and Comparative example 2-4

According to the component ratio shown in Table 4 below, a cosmetic composition to which an acrylate/stearyl acrylate/dimethicone methacrylate copolymer and boron nitride treated with a wet coating treatment with dimethicone were applied (Example 2), acrylate/stearyl Cosmetic composition comprising boron nitride and sericite coated with acrylate/dimethicone methacrylate copolymer and dimethicone (Example 3), cosmetic composition applying non-coating boron nitride (Comparative Example 2), and a cosmetic composition to which boron nitride coated with another coating material was applied (Comparative Example 3), and A cosmetic composition (Comparative Example 4) to which boron nitride and diphenylsiloxyphenyltrimethicone were not coated was prepared.

division Example 2 Example 3 Comparative Example 2 Comparative Example 3 Comparative Example 4 Talc To 100 To 100 To 100 To 100 To 100 Synthetic mica 5.0 5.0 5.0 5.0 10.0 Silica 3.0 3.0 3.0 3.0 3.0 Non-coating boron nitride - - 40.0 - 40.0 Trimethylsiloxysilicate coated boron nitride - - - 40.0 - Boron nitride coated with acrylate/stearyl acrylate/dimethicone methacrylate copolymer and dimethicone 40.0 40.0 - - - Sericite with alkylsilane coating - 10.0 - - - Iron oxide pigment 2.75 2.75 2.75 2.75 2.75 Hydrogenated Polyisobutene 0.5 0.5 0.5 0.5 - Phytosteryl/isostearyl/cetyl/stearyl/behenyldimerdilinoleate 2.0 2.0 2.0 2.0 - Octyldodecyl stearoyl stearate - - 3.0 3.0 3.0 Diphenylsiloxyphenyltrimethicone - - - - 2.0 Dimethicone 1.0 1.0 1.0 1.0 1.0 COMDIOR 0.5 0.5 0.5 0.5 0.5 Spices 0.12 0.12 0.12 0.12 0.12

1-4. Example 4 and Comparative example 5

According to the component ratio shown in Table 5 below, a cosmetic composition in which hydrogenated polyisobutene and phytosteryl/isostearyl/cetyl/stearyl/behenyldimerdilinoleate were applied together as an oil binder (Example 4), oil A cosmetic composition (Comparative Example 5) in which phenyltrimethicone and dimethicone, which are common silicone oils, were applied together as a binder was prepared.

division Example 4 Comparative Example 5 Alkylsilane and dimethicone coated talc To 100 To 100 Synthetic mica 5.0 5.0 Silica 3.0 3.0 Sericite with alkyl silane coating 5.0 5.0 Boron nitride coated with acrylate/stearyl acrylate/dimethicone methacrylate copolymer and dimethicone 40.0 40.0 Iron oxide pigment 2.75 2.75 Hydrogenated Polyisobutene 1.0 - Phytosteryl/isostearyl/cetyl/stearyl/behenyldimerdilinoleate 2.0 - Phenyltrimethicone - 2.0 Dimethicone - 2.0 COMDIOR 0.5 0.5 Spices 0.12 0.12

Experimental example 1: tint powder Cosmetic Coverage And Feeling evaluation

The coverage and feeling of use of the pressed powder prepared in Examples 1 to 4 and Comparative Examples 1 to 5 were evaluated. For the coverage and feeling of use, a blind test was conducted on 34 professional panelists, unmarried and married women, 20-43 years old, who have a minimum of 2 years of makeup and makeup experience and continuously apply makeup at least 5 times a week. Criteria for evaluating coverage and feeling are as shown in Table 6 below.

Evaluation standard 5 points Very good 4 points Great 3 points usually 2 points Bad 1 point Very bad

The evaluation of coverage was not expressed in vain and unnatural, but was quantified according to the degree of naturally covering skin defects, pores and irregularities while showing natural hiding power.

In the evaluation of the feeling of use, after each application of the cosmetic composition on the face of the female subject, the feeling of use, in particular, adhesion, spreadability, smooth feeling, makeup agglomeration, floating phenomenon, and powder blowing phenomenon were evaluated.

The scores evaluated by 34 expert panelists for coverage and feeling of use were statistically processed as an average for each item, and scored in Tables 7 and 8 below.

division Example 1 Comparative Example 1 Coverage 4.4 4.2 Adhesion 4.6 4.0 Spreadability 4.5 2.7 Fine feeling 4.2 2.8 Make-up clumping and lifting 4.0 3.5

As shown in Table 7 above, Example 1 comprising an acrylate/stearyl acrylate/dimethicone methacrylate copolymer and dimethicone-coated boron nitride and an alkyl silane-coated sericite together was compared. Compared to Example 1, the covering power was excellent without the cloudiness, which is expressed in vain, and received excellent scores in the overall evaluation of the feeling of use such as adhesion, spreadability, and fine feeling.

On the other hand, Comparative Example 1 containing titanium dioxide showed a severe white cloudiness characteristic of titanium dioxide, and stiff spreadability due to the unique structure of titanium dioxide was present. In addition, the coarse particles of titanium dioxide did not spread evenly over the skin, resulting in a phenomenon of makeup lumping, resulting in makeup lifting.

division Example 2 Example 3 Comparative Example 2 Comparative Example 3 Comparative Example 4 Coverage 4.2 4.6 3.9 3.8 3.9 Adhesion 4.2 4.4 3.6 3.4 3.3 Spreadability 4.1 4.3 4.0 3.5 3.6 Fine feeling 4.2 4.2 3.8 3.4 3.5 Make-up clumping and lifting 4.0 4.0 3.2 3.0 3.2 Powder flying phenomenon 4.1 4.2 3.6 3.5 3.3

As shown in Table 8, coverage and overall feeling of use were evaluated according to the presence or absence of coating of boron nitride and the type of coating. Example 2 comprising an acrylate/stearyl acrylate/dimethicone methacrylate copolymer and a boron nitride coated with dimethicone is an acrylate/stearyl acrylate/dimethicone methacrylate copolymer and dimethicone It was confirmed that it received a somewhat lower evaluation in the evaluation of coverage, adhesion, and spreadability compared to Example 3, which includes both boron nitride coated with and sericite coated with alkyl silane. As a result of comparing the skin conditions before and after applying the cosmetic composition of Example 3, it was confirmed that after applying the cosmetic composition, the skin coverage and adhesion were excellently expressed, and excellent skin expression power was realized without makeup clumping (FIG. 1).

Through these results, a more excellent synergistic effect in a cosmetic composition comprising an acrylate/stearyl acrylate/dimethicone methacrylate copolymer and a boron nitride coated with dimethicone with sericite treated with an alkyl silane coating. It was confirmed that the (synergy effect) was displayed.

In addition, in the case of those not coated with boron nitride (Comparative Example 2) and those containing boron nitride coated with trimethylsiloxysilicate (Comparative Example 3), Examples 2 and 3 in the evaluation of coverage and adhesion It received a lower evaluation, and it received relatively low evaluation in terms of spreadability and smooth feeling, and makeup lumping and lifting.

These facts suggest that when coating with acrylate/stearyl acrylate/dimethicone methacrylate copolymer and dimethicone, the effect of adhering and adhering the skin and powder is excellent.When applied to the skin, it has a soft and fine feeling of use. It is determined to give.

Through these experimental results, cosmetics containing acrylate/stearyl acrylate/dimethicone methacrylate copolymer and dimethicone-coated boron nitride and alkyl silane-coated sericite together are conventional color powder cosmetics. In contrast, it was confirmed that the coverage was naturally excellent without the cloudiness phenomenon, and the adhesion and spreadability also had excellent efficacy.

division Example 4 Comparative Example 5 Spreadability 4.5 4.2 Adhesion 4.6 4.2 Powder flying phenomenon 4.2 4.0

In addition, as an oil binder, the application properties of a cosmetic composition using hydrogenated polyisobutene and phytosteryl/isostearyl/cetyl/stearyl/behenyldimerdilinoleate together, The adhesion and the powder flying phenomenon were evaluated.

As can be seen in Table 9, Example 4 in which hydrogenated polyisobutene and phytosteryl/isostearyl/cetyl/stearyl/behenyldimerdilinoleate were applied together as oil binders was a comparison of applying a general silicone oil. Compared to Example 5, it received excellent evaluation in the evaluation of spreadability, adhesion, and powder spreading.

From the above results, it was confirmed that the application of the paste-like ester oil in the powder cosmetic composition sufficiently serves as a crosslinking between the skin and the powder and improves adhesion. That is, in the cosmetic composition containing acrylate/stearyl acrylate/dimethicone methacrylate copolymer and dimethicone-coated boron nitride and alkylsilane-coated sericite in a powder cosmetic composition, a paste-like ester oil is used. It was confirmed that it is preferable to apply it as an oil binder that improves spreadability and adhesion.

Experimental example 2: tint powder Cosmetic Formability and stability evaluation

Evaluation of the hardness and drop stability of the pressed powder prepared in Examples 2 and 4 and Comparative Examples 1 and 3, and the greasing and caking phenomenon caused by agglomeration of oil and fine particles Was confirmed.

The hardness measurement was performed using a JAL Type (JIS K 6301) penetration hardness tester of Japan Polymer Instruments Co., Ltd., and the average values of each are shown in Table 10 below. Dropping stability was measured when each of the examples and comparative examples, which had been molded, were vertically freely dropped on a 3 mm rubber plate from a height of 70 cm to determine the time of failure.

In addition, the grazing and caking phenomenon appearing on the product surface is a phenomenon that occurs when the product surface is taken about 100-120 times, assuming that 3 products have been molded as the force actually used by a woman using a makeup tool (puff). Evaluated.

division Example 2 Example 4 Comparative Example 1 Comparative Example 3 Hardness 25 28 40 35 Drop stability
(Damage time) 4.0 times 4.5 times 6 times 5 times Greasing
& Caking nothing strange nothing strange Occurs Occurs

※ Pass Criteria: Drop stability is stable when the average value of 5 samples is more than 3 times

When looking at the results shown in Table 10, it was confirmed that Examples 2 and 4 obtained high scores in the main items such as coverage and adhesion, and at the same time had an appropriate hardness and dropping stability of 4 or more times. In addition, it was confirmed that it is stable without abnormalities even in the grazing and caking phenomena due to agglomeration of oil and particles.

On the other hand, when titanium dioxide was applied (Comparative Example 1), the hardness was very high, and the drop stability was good, but grazing and caking phenomena occurred due to agglomeration of fine particles. That is, it was confirmed that the product was at a level of rejection and that the quality of the product was not good.

In addition, when the trimethylsiloxysilicate-coated boron nitride was included (Comparative Example 3), a hardness of an appropriate hardness level was formed, but grazing and caking phenomena were observed as in the case of Comparative Example 1.

Through these results, in the case of a color powder cosmetic composition to which an acrylate/stearyl acrylate/dimethicone methacrylate copolymer and a boron nitride coated with dimethicone are applied, it has an appropriate hardness and has excellent drop stability, At the same time, it was confirmed that grazing and caking did not appear.

Experimental example 3: tint powder Cosmetic Evaluation of makeup condition

The cosmetic composition of Example 4 and Comparative Example 1 was applied to the actual skin to evaluate the cosmetic state, that is, a uniform cosmetic film, smooth makeup expression, and makeup persistence. The evaluation subjects were 34 women aged 20 to 43 years old, and the feeling and condition of applying the product and the persistence after makeup were checked.

The evaluation criteria of the makeup state are shown in Table 11 below.

Evaluation standard ◎ The optimum texture or feeling is felt. ○ It almost feels optimal, but not very satisfactory. △ is average. Ⅹ bad.

division Uniform cosmetic film Smooth makeup expression Makeup persistence Example 4 ◎ ◎ ○ Comparative Example 1 Ⅹ Ⅹ △

When looking at the results shown in Table 12, Example 4 prepared according to the present invention exhibited a very good makeup effect in a uniform cosmetic film and smooth makeup expression, and it was confirmed that the makeup persistence evaluation was also excellent.

On the other hand, in the case of Comparative Example 1, it was evaluated at a level that was very unsatisfactory in the evaluation of a uniform cosmetic film and smooth makeup expression, and the evaluation of makeup persistence was confirmed at a normal level. In the case of Comparative Example 1, it is determined that the makeup state is smooth and uneven by directly applying titanium dioxide having a needle shape and a rod shape. In addition, it was confirmed that the cosmetic satisfaction was not excellent due to the rough feeling and stiff feeling peculiar to titanium dioxide.

From the above results, the cosmetic composition of the present invention is coated with an acrylate/stearyl acrylate/dimethicone methacrylate copolymer and dimethicone in order to improve moldability and adhesion, and an alkyl silane coating treatment. By including the sericite, it gives natural coverage without cloudiness, has excellent adhesion and application, and forms a smooth and uniform cosmetic film in skin expression.

In addition, it was confirmed that the cosmetic composition of the present invention contained hydrogenated polyisobutene and phytosteryl/isostearyl/cetyl/stearyl/behenyl dimer dilinoleate, thereby remarkably improving moldability and drop stability.

Experimental example 4: tint powder Cosmetic skin Bounce rate evaluation

After applying the pressed powder prepared in Examples 1 to 3 and Comparative Examples 1 to 4 to the skin, the degree of adhesion to the skin was compared by evaluating the skin release rate. The lower the skin release rate value of the cosmetic composition appears, the higher the skin adhesion of the cosmetic composition is.

The method of measuring the skin release rate is to apply 10 mg of a sample on a 4x4 cm square artificial skin, blow air at a pressure of 20 psi at a distance of 15 cm for about 20 seconds, and then measure the residual amount on the skin. Bounce rate was calculated.

Skin breakaway rate (%) Example 1 10.4 Example 2 10.2 Example 3 9.7 Comparative Example 1 15.6 Comparative Example 2 20.3 Comparative Example 3 16.4 Comparative Example 4 24.5

The skin release rate values of each composition are as shown in Table 13, and are graphed and presented in FIG. 2. The skin breakaway rates of Examples 1 to 3 are 10.4, 10.2, and 9.7%, respectively, whereas the skin breakaway rates of Comparative Examples 1 to 4 are all 15% or more, and are prepared in Examples 1 to 3 through these results. It was confirmed that one cosmetic composition has better adhesion to the skin than the cosmetic compositions of Comparative Examples 1 to 4 (FIG. 2).

Specifically, in the case of applying non-coating boron nitride (Comparative Example 2), the skin release rate is 20.3%, and in the case of applying boron nitride coated with another coating material (Comparative Example 3) Compared to 16.4%, in the case of a cosmetic composition comprising an acrylate/stearyl acrylate/dimethicone methacrylate copolymer and boron nitride coated with dimethicone and sericite together (Example 3), skin release rate It was measured as low as 9.7%, and it was confirmed that it has high skin adhesion.

Claims (17)

As a color powder cosmetic composition comprising a coated boron nitride, sericite and a pasty oil binder,
The boron nitride is coated with acrylate/stearyl acrylate/dimethicone methacrylate copolymer and dimethicone,
The sericite is coated with an alkylsilane,
The pasty oil binder is hydrogenated polyisobutene and phytosteryl/isostearyl/cetyl/stearyl/behenyldimerdilinoleate. The color powder cosmetic composition of claim 1, wherein the composition additionally contains talc coated with silicone, fatty acid, or a mixture thereof. delete The method of claim 1, wherein the boron nitride is coated with 0.1 to 2% by weight of acrylate/stearyl acrylate/dimethicone methacrylate copolymer and 0.1 to 3% by weight of dimethicone based on the total weight of the cosmetic composition. The color powder cosmetic composition. The color powder cosmetic composition of claim 1, wherein the boron nitride is contained in an amount of 5 to 50% by weight based on the total weight of the cosmetic composition. The color powder cosmetic composition of claim 1, wherein the boron nitride has an average particle diameter of 3 to 24 µm. delete delete The color powder cosmetic composition of claim 1, wherein the sericite is contained in an amount of 1 to 25% by weight based on the total weight of the cosmetic composition. The color powder cosmetic composition of claim 1, wherein the sericite has an average particle diameter of 5 to 20 µm. The color powder cosmetic composition of claim 1, wherein the weight ratio of the boron nitride and sericite is 0.2:1 to 2:1 (boron nitride: sericite). delete The color powder cosmetic composition of claim 1, wherein the weight ratio of the boron nitride and sericite to the oil binder is 1:0.2 to 1:0.6 (boron nitride and sericite: oil binder). The method of claim 1, wherein 5 to 50% by weight of boron nitride coated with acrylate/stearyl acrylate/dimethicone methacrylate copolymer and dimethicone based on the total weight of the composition, 1 to 1 sericite treated with alkyl silane coating 25% by weight, 0.1 to 5% by weight of hydrogenated polyisobutene, 0.1 to 5% by weight of phytosteryl/isostearyl/cetyl/stearyl/behenyldimerdilinoleate, 5 to 40% by weight of extender pigment and oil The color powder cosmetic composition containing 0.1 to 15% by weight. (a) stirring the powder part including the coated boron nitride, and sericite;
(b) spraying an oil part containing hydrogenated polyisobutene and phytosteryl/isostearyl/cetyl/stearyl/behenyldimerdilinoleate to the powder part; And
(c) mixing, pulverizing and filtering the product of step (b)
As a method for producing a color powder cosmetic composition comprising a,
The boron nitride is coated with acrylate/stearyl acrylate/dimethicone methacrylate copolymer and dimethicone,
The sericite is coated with an alkylsilane, a method for producing a color powder cosmetic composition. The method of claim 15, wherein the step (a) further comprises talc coated with silicone, fatty acid, or a mixture thereof. The color powder according to any one of claims 1 to 2, 4 to 6, 9 to 11, 13, and 14, wherein the coating is a wet coating. Cosmetic composition.

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