TW201713303A - Makeup cosmetic composition comprising lamellar structure - Google Patents

Abstract

Disclosed is an oil-in-water type makeup cosmetic composition containing an aqueous phase and an oil phase. The composition comprises inorganic powder surface-treated with a hydrophilic coating agent and dispersed in the aqueous phase, and has a ceramide-containing multilayer lamellar structure. The makeup cosmetic composition shows excellent formulation stability, and has an excellent skin moisturizing effect when applied to the skin.

Description

Cosmetic cosmetic composition comprising a layered structure

The reference of the present invention is Korean Patent KR10-2011-0093634 A.

The present specification relates to a cosmetic cosmetic composition in which a neural amide is stabilized by using an inorganic powder surface-treated with a hydrophilic coating agent.

Ceramide can occupy at least 40% of the keratinocyte intercellular lipids that form the stratum corneum, which forms the keratinous layer structure or an essential component that exhibits the function of the stratum corneum, and has excellent moisturizing effect and barrier function enhancing effect. However, when ceramide is incorporated in a large amount into a cosmetic formulation, it is slightly soluble and thus used after reducing its particle size. In this case, however, the formulation will experience a decrease in stability and gelation.

When the encapsulated form of ceramide is used to solve this problem, the disadvantage is that a large amount of encapsulant causes a practical reduction in the amount of available neuronamine and a saccharide or polymer-based encapsulant degrades the feeling of use.

Particle coalescence causes gelatination of the neural amine to be avoided by increasing the particle size by multi-layered lamellar liquid crystal to stabilize the surface energy. Here, when the cosmetic powder is introduced into the generated particles, the particles become undesirably unstable.

The present specification is intended to provide a cosmetic cosmetic composition which is stabilized while maintaining a liquid crystal by using a powder which has been surface-treated with cerium oxide.

technical problem

This specification addresses a technical problem by providing an oil-in-water cosmetic cosmetic composition comprising stable lamellar liquid crystal while avoiding gelatinization of the neural amine.

The present specification solves another technical problem by providing an oil-in-water cosmetic cosmetic composition comprising an aqueous phase and an oil phase, the composition comprising an inorganic powder surface-treated with a hydrophilic coating agent and having a neurosteroid-containing Multi-layered layered structure.

The present specification solves another technical problem by providing a method for preparing an oil-in-water cosmetic cosmetic composition comprising an inorganic powder surface-treated with a hydrophilic coating agent and having a layer of a layer of neural guanamine structure. Technical solutions

In a general aspect, there is provided an oil-in-water cosmetic cosmetic composition comprising an aqueous phase and an oil phase, the composition comprising an inorganic surface treated with a hydrophilic coating agent and dispersed in the aqueous phase Powder, and it has a multi-layered layer structure containing neural guanamine.

According to a specific embodiment, the hydrophilic coating agent comprises one selected from the group consisting of ceria and cellulose.

According to another embodiment, the multilayer layered structure comprises a glucoside surfactant. In particular, the glucoside surfactant may be at least one selected from the group consisting of behenyl alcohol, arachidyl alcohol, arachidyl glucoside, C14-22 alcohol, and C12-20 alkyl glucoside. The group formed.

According to still another embodiment, the neural amine may be at least one selected from the group consisting of natural neural amines and pseudo-ceramides.

According to still another specific embodiment, the natural neuropterin may be at least one selected from the group consisting of neuropterin 1, neuropterin 2, neuropterin 3, neuropterin 4, neuropterin 5, and neural amine 6, Ceramide 7 and neuropterin 8.

According to still another specific embodiment, the neurosteroid may be at least one compound selected from the group consisting of the following Chemical Formulas 1-6: [Chemical Formula 1] (wherein R is a C9-C21 saturated or unsaturated fatty chain) [Chemical Formula 2] (where n is 1 or 2; and each R and R' is a C9-C21 saturated or unsaturated fatty chain) [Chemical Formula 3] [wherein m and n are the same or different and each represents an integer of 1-3; k and l are the same or different and each represents 1 or 2; j is 0 or 1; R and R' are the same or different and each represents C1-C31 straight a chain or branched saturated or unsaturated alkyl group with or without a hydroxyl group; A ¹ , A ² and A ^{3 are the} same or different and each represents H or any substituent represented by the structure shown below , provided that A ¹ , A ² and A ³ cannot represent H at the same time: and (wherein each of M, M ¹ and M ² is selected from the group consisting of basic metals, lysine, arginine, histidine, triethanolamine, ammonia, polyquaternium-4, polyquaternium -6, polyquaternium-7, polyquaternium-10, polyquaternium-11, polyquaternium-16, lauryldimethylbenzylammonium chloride and 18 a group consisting of stearyldimethylbenzylammonium chloride, and L is an alkaline earth metal)] [Chemical Formula 4] [wherein R and R' are the same or different and each represents a C10-C32 straight or branched saturated or unsaturated alkyl group with or without a hydroxyl group; R ³ and R ^{4 are the} same or different and each Represents H or a C1-C4 alkyl group or a hydroxyalkyl group; and R ⁵ is -A or -CH ₂ CH ₂ OA, wherein A is any substituent represented by the structure: and (wherein each of M, M ¹ and M ² is selected from the group consisting of basic metals, lysine, arginine, histidine, triethanolamine, ammonia, polyquaternium-4, polyquaternium-6, Polyquaternium-7, polyquaternium-10, polyquaternium-11, polyquaternium-16, dodecyldimethylbenzylammonium chloride and octadecyldimethylbenzyl a group consisting of ammonium chloride, and L is an alkaline earth metal)] [Chemical Formula 5] [wherein m and n are the same or different and each represents an integer from 1 to 4; R and R' are the same or different and each represents a C1-C31 straight or branched saturated or unsaturated alkyl group, with or without a monohydroxy group; and A ₁ and A _{2 are the} same or different and each represents H or any substituent represented by the structure: and (wherein M, M ¹ and M ² are selected from the group consisting of basic metals, lysine, arginine, histidine, triethanolamine, ammonia, polyquaternium-4, polyquaternium-6, poly Quaternary ammonium salt-7, polyquaternium-10, polyquaternium-11, polyquaternium-16, dodecyldimethylbenzylammonium chloride and octadecyldimethylbenzyl chloride Group of ammonium compounds, and L is an alkaline earth metal)] [Chemical Formula 6] [wherein m and n are the same or different and each represents an integer of 1-3; k and l are the same or different and each represents 1 or 2; j is 0 or 1; A ¹ , A ² and A ^{3 are the} same or different and each represents H or any substituent represented by the structure: and (wherein each M, M ¹ and M ² is an alkali metal or a nitrogen-containing organic base, and L is an alkaline earth metal); R is a substituent having the following structure: (wherein B is a methyl group at the 5-, 7- or 8-position of tocopherol, m is an integer from 1 to 3, and D is -CH ₂ (CH ₃ )-CH- or -CH(CH ₃ )=C -)].

According to still another embodiment, the inorganic powder surface-treated with a hydrophilic coating agent comprises at least one selected from the group consisting of titanium dioxide surface treated with a hydrophilic coating agent and a surface of a hydrophilic coating agent. Treated iron oxide.

According to still another embodiment, the inorganic powder surface-treated with a hydrophilic coating agent is used in an amount of 0.01 to 25 wt% based on the total weight of the composition.

According to still another specific embodiment, the neural amine is used in an amount of from 0.01 to 20% by weight based on the total weight of the composition.

According to still another embodiment, the layered structure has a size of from 2 μm to 30 μm.

In another general aspect, a method for preparing an oil-based cosmetic cosmetic composition comprising the steps of: preparing an oil phase comprising a neuropterin and a glucoside surfactant; and providing an aqueous phase The powder is mixed with an inorganic powder surface-treated with a hydrophilic coating agent to disperse the powder; the obtained oil phase is mixed with the aqueous phase to form a mixture; and the mixture is allowed to stand at 45 ° C to 60 ° C.

In still another general aspect, a method for preparing an oil-based cosmetic cosmetic composition comprising the steps of: preparing an oil phase comprising one of a neural amine and a glucoside surfactant; and preparing a water Phase; mixing the prepared oil phase with the aqueous phase to form a mixture; placing the mixture at 45 ° C - 60 ° C; and mixing the mixture with the inorganic powder surface treated with a hydrophilic coating agent To disperse the powder. Beneficial effect

The cosmetic cosmetic composition of one aspect of the present specification has excellent formulation stability.

The cosmetic composition of the present invention comprises an inorganic powder and a stabilized neural amine layered liquid crystal.

The cosmetic cosmetic composition of one aspect of the present specification exhibits an excellent moisturizing effect when applied to the skin.

The cosmetic cosmetic composition of one aspect of the present specification exhibits an effect of restoring the barrier function when applied to the skin.

The cosmetic cosmetic composition of one aspect of the present specification exhibits an excellent effect of improving skin dryness when applied to the skin.

Best embodiment

The exemplified embodiments are now described more fully hereinafter to fully convey the scope of the present disclosure to those skilled in the art.

According to one aspect, there is provided an oil-in-water cosmetic cosmetic composition comprising an aqueous phase and an oil, the composition comprising an inorganic powder surface-treated with a hydrophilic coating agent and dispersed in the water direction and It has a multi-layered layer structure containing neuronamine.

According to a specific embodiment, the neural guanamine layered structure comprises a glucoside surfactant and the hydrophilic coating agent comprises at least one of cerium oxide and cellulose in order to provide an excellent moisturizing effect and a recovery barrier. One of the functional effects is a makeup cosmetic composition.

According to another embodiment, cerium oxide and cellulose can be obtained by conventional methods. However, it is apparent to those skilled in the art that cerium oxide is not limited to a particular class as long as it is within the scope of the present specification.

According to still another specific embodiment, there is provided an oil-in-water cosmetic cosmetic composition, wherein the inorganic powder surface-treated with a hydrophilic coating agent may include an amount of 2-15 wt% based on the weight of the inorganic powder. One of the coating agents.

In particular, the inorganic powder surface treated with a hydrophilic coating agent may include the following amounts of coating agent: at least 2 wt%, at least 3 wt%, at least 4 wt%, at least 5 wt%, at least 6 wt% , at least 7 wt%, at least 8 wt%, at least 9 wt% or at least 10 wt%.

Moreover, the inorganic powder surface-treated with a hydrophilic coating agent may include one of the following amounts of coating agent: at most 12 wt%, at most 11 wt%, at most 10 wt%, at most 9 wt%, at most 8 wt% , up to 7 wt%, up to 6 wt%, up to 5 wt%, up to 4 wt% or up to 3 wt%.

When the coating agent is used within the above range, the cosmetic cosmetic composition may include the inorganic powder and a stable neural amine layered liquid crystal.

According to still another specific embodiment, when the coating agent is a ceria coating, titanium dioxide and yellow iron oxide in the inorganic powder may be coated at a ratio of 8-12 wt%, and red or black oxidation Iron may be applied in a ratio of 10-15 wt%. According to another specific embodiment, when the coating agent is a cellulose coating, titanium dioxide, yellow iron oxide, red or black iron oxide may be applied in a ratio of 2-8 wt%.

According to still another embodiment, an oil-in-water cosmetic cosmetic composition is provided, wherein the multi-layered layer structure may include a glucoside surfactant. In particular, the glucoside surfactant may be at least one selected from the group consisting of behenyl alcohol, arachidyl alcohol, arachidyl glucoside, C14-C22 alcohol, and C12-C20 alkyl glucoside. group.

The multilayered neural guanamine layered structure as used herein may further comprise a wax or an oil. The wax may be at least one selected from the group consisting of alcohols, fatty acids, vegetable waxes, synthetic waxes, paraffin waxes, cetyl palmitate, beeswax, lipids, and lipid peptides. The oil can be an ester oil, a hydrocarbon oil or an eucalyptus oil.

According to still another embodiment, the neural amine may be at least one of a natural neural amine and a neurosteroid-like amine.

The neuropterin used herein may be at least one of natural neural amines and neurosteroids. The natural neuropterin is a naturally occurring neuropterin and comprises a neurosteroid, a neuronamine 2, a neuronamine 3, a neuropterin 4, a neuropterin 5, a neurosteroid 6, a neuronamine 7, a nerve Indoleamine 8 and the like. Such neuropterins include neural guanamine 104 and neural guanamine 102. Such neuroketamines as used herein generally encompass compounds having a double-stranded layered structure which is the structure of natural neural guanamine.

According to the present specification, the layered structure avoids gelatinization of neuropterin such as its outer layer. When macroemulsion is formed with two or more layers of this layer structure, it can assist in the stabilization of neural amines and provide excellent pick-up property and refreshing use. sense.

Most rod-type surfactants (SAAs), including neuropterin, are known to be more stable as the curvature decreases and the radius of curvature increases. Therefore, a macroemulsion having a smaller curvature is more stable than a small particle emulsion having a larger curvature.

According to still another specific embodiment, there is provided an oil-in-water cosmetic cosmetic composition, wherein the neurotropic amine is at least one of the compounds represented by the following Chemical Formulas 1-6. [Chemical Formula 1] (wherein R is a C9-C21 saturated or unsaturated fatty chain) [Chemical Formula 2] (wherein n is 1 or 2; and each R and R' is a C9-C21 saturated or unsaturated fatty chain) [Chemical Formula 3] [wherein m and n are the same or different and each represents an integer of 1-3; k and l are the same or different and each represents 1 or 2; j is 0 or 1; R and R' are the same or different and each represents C1-C31 straight a chain or branched saturated or unsaturated alkyl group with or without a hydroxyl group; A ¹ , A ² and A ^{3 are the} same or different and each represents H or any substituent represented by the structure shown below , provided that A ¹ , A ² and A ³ cannot represent H at the same time: and (wherein each of M, M ¹ and M ² is selected from the group consisting of basic metals, lysine, arginine, histidine, triethanolamine, ammonia, polyquaternium-4, polyquaternium-6, Polyquaternium-7, polyquaternium-10, polyquaternium-11, polyquaternium-16, dodecyldimethylbenzylammonium chloride and octadecyldimethylbenzyl a group consisting of ammonium chloride, and L is an alkaline earth metal)] [Chemical Formula 4] [wherein R and R' are the same or different and each represents a C10-C32 straight or branched saturated or unsaturated alkyl group with or without a hydroxyl group; R ³ and R ^{4 are the} same or different and each Represents H or a C1-C4 alkyl group or a hydroxyalkyl group; and R ⁵ is -A or -CH ₂ CH ₂ OA, wherein A is any substituent represented by the structure: and (wherein each of M, M ¹ and M ² is selected from the group consisting of basic metals, lysine, arginine, histidine, triethanolamine, ammonia, polyquaternium-4, polyquaternium-6, Polyquaternium-7, polyquaternium-10, polyquaternium-11, polyquaternium-16, dodecyldimethylbenzylammonium chloride and octadecyldimethylbenzyl a group consisting of ammonium chloride, and L is an alkaline earth metal)] [Chemical Formula 5] [wherein m and n are the same or different and each represents an integer from 1 to 4; R and R' are the same or different and each represents a C1-C31 straight or branched saturated or unsaturated alkyl group, with or without a monohydroxy group; and A ₁ and A _{2 are the} same or different and each represents H or any substituent represented by the structure: and (wherein M, M ¹ and M ² are selected from the group consisting of basic metals, lysine, arginine, histidine, triethanolamine, ammonia, polyquaternium-4, polyquaternium-6, poly Quaternary ammonium salt-7, polyquaternium-10, polyquaternium-11, polyquaternium-16, dodecyldimethylbenzylammonium chloride and octadecyldimethylbenzyl chloride Group of ammonium compounds, and L is an alkaline earth metal)] [Chemical Formula 6] [wherein m and n are the same or different and each represents an integer of 1-3; k and l are the same or different and each represents 1 or 2; j is 0 or 1; A ¹ , A ² and A ^{3 are the} same or different and each represents H or any substituent represented by the structure: and (wherein each M, M ¹ and M ² is an alkali metal or a nitrogen-containing organic base, and L is an alkaline earth metal); R is a substituent having the following structure: (wherein B is a methyl group at the 5-, 7- or 8-position of tocopherol, m is an integer from 1 to 3, and D is -CH ₂ (CH ₃ )-CH- or -CH(CH ₃ )=C -)].

The compound represented by Chemical Formulas 1-6 is a neurosteroid which has excellent skin moisturizing properties and a skin barrier function recovery effect.

The multilayered neural guanamine layered structure, i.e., multi-layered lamellar liquid crystal, is used herein to refer to a macroemulsion. Preferably, the multilayered neural guanamine layered structure, that is, the multi-layered liquid crystal, may have an average particle diameter of from 2 μm to 30 μm. In particular, the multi-layered liquid crystal may have an average particle size of at least 2 μm, at least 3 μm, at least 4 μm, at least 5 μm, at least 6 μm, at least 7 μm, at least 8 μm, at least 9 μm, at least 10 Μm, at least 11 μm, at least 12 μm, at least 13 μm, at least 14 μm, at least 15 μm, at least 16 μm, at least 17 μm or at least 18 μm.

Moreover, the multilayered neural amine layered structure may have an average particle size of at most 30 μm, at most 29 μm, at most 28 μm, at most 27 μm, at most 26 μm, at most 25 μm, at most 24 μm, at most 23 μm, Up to 22 μm, up to 21 μm, up to 20 μm, up to 19 μm, up to 18 μm, up to 17 μm, up to 16 μm or up to 15 μm.

When the multilayered neural amine layered structure has an average particle size of at least 2 μm, it may stabilize the neurosteroid-like, achieve water-bursting use characteristics and provide an improved moisturizing effect. Moreover, when the average particle diameter is more than 30 μm, the stability is lowered. Therefore, it is preferable to maintain the above range.

According to still another specific embodiment, a cosmetic cosmetic composition is provided, wherein the inorganic powder surface-treated with a hydrophilic coating agent comprises at least one titanium oxide selected from the surface treated with a hydrophilic coating agent and Iron oxide surface treated with a hydrophilic coating agent.

According to still another specific embodiment, there is provided a cosmetic cosmetic composition, wherein the inorganic powder surface-treated with a hydrophilic coating agent is used in an amount of 0.01 to 25 wt% based on the total weight of the composition.

In particular, the inorganic powder surface treated with a hydrophilic coating agent may be used in an amount of at least 0.01 wt%, at least 0.5 wt%, at least 1 wt%, at least 2 wt% based on the total weight of the composition. %, at least 3 wt%, at least 4 wt%, at least 5 wt%, at least 6 wt%, at least 7 wt%, at least 8 wt%, at least 9 wt%, at least 10 wt%, at least 11 wt%, at least 12 wt% %, at least 13 wt%, at least 14 wt%, at least 15 wt%, at least 16 wt%, at least 17 wt%, at least 18 wt%, at least 19 wt%, at least 20 wt% or at least 21 wt%.

Moreover, the inorganic powder surface-treated with a hydrophilic coating agent may be used in an amount of up to 25 wt%, up to 24 wt%, up to 23 wt%, up to 22 wt%, up to 21 wt%, up to 20 wt. %, up to 19 wt%, up to 18 wt%, up to 17 wt%, up to 16 wt%, up to 14 wt%, up to 13 wt%, up to 12 wt% or up to 11 wt%.

When the amount of the inorganic powder surface-treated with a hydrophilic coating agent is in the above range, it is possible to provide an excellent coating effect so that the titanium oxide is within the limits of its formulation, and the display is not too dark or too bright. The color.

According to still another embodiment, the inorganic pigment surface-treated with cerium oxide or cellulose may be obtained by a person skilled in the art by a known method which is not particularly limited. Usually, the inorganic pigment is dispersed, and a precursor which can form cerium oxide (for example, tetraethoxy guanidine) is added thereto, and then hydrolyzed by heat treatment at a temperature of 50 to 400 ° C for 1 to 6 hours so that the Inorganic pigments may be surface treated with cerium oxide. Specific examples of the inorganic pigment may include titanium oxide and yellow, red, and black iron oxide, but are not limited thereto.

According to still another embodiment, it is possible to use titanium dioxide and yellow, red and black iron oxide surface treated with cerium oxide or cellulose. In the case of titanium dioxide surface treated with cerium oxide or cellulose, it preferably has a particle size of from 400 to 600 nm to provide a coating effect and is preferably based on the total weight of the composition of 0.5 to 25 wt. The amount of % is used. When the amount is less than 0.5% by weight, it may provide a sufficient coating effect. When the amount is greater than 25 wt%, it exceeds the titanium dioxide blending limit.

Further, the yellow, red and black iron oxide surface-treated with cerium oxide or cellulose is used in an amount determined by color, and it is preferably used in a combined amount of 0.01 to 10% by weight based on the total weight of the composition. When the amount is less than 0.01 wt%, it is possible to achieve a desired color. When the amount is more than 10% by weight, the composition is too dark in color and thus is not suitable for a cosmetic composition.

According to still another embodiment, a cosmetic composition is provided, wherein the neural amine is used in an amount of from 0.01 to 20% by weight based on the total weight of the composition.

In particular, the ceramide may be used in an amount of at least 0.01 wt%, at least 0.5 wt%, at least 1 wt%, at least 2 wt%, at least 3 wt%, at least 4 wt%, based on the total weight of the composition. , at least 5 wt%, at least 6 wt%, at least 7 wt%, at least 8 wt%, at least 9 wt%, at least 10 wt%, at least 11 wt%, at least 12 wt%, at least 13 wt%, at least 14 wt% , at least 15 wt%, at least 16 wt% or at least 17 wt%.

Moreover, the ceramide may be used in an amount of up to 20 wt%, up to 19 wt%, up to 18 wt%, up to 17 wt%, up to 16 wt%, up to 15 wt%, based on the total weight of the composition, Up to 14 wt%, up to 13 wt%, up to 12 wt% or up to 11 wt%.

When the neuroterpenoid is used in the above range, it may provide an excellent skin moisturizing effect and improve skin dryness when applied to the skin.

In another aspect, a method for preparing an oil-based cosmetic cosmetic composition comprising the steps of: preparing an oil phase comprising a neural amine and a glucoside surfactant; and providing an aqueous phase Mixing with an inorganic powder surface-treated with a hydrophilic coating agent to disperse the powder; mixing the prepared oil phase with the aqueous phase to form a mixture; and placing the mixture at 45 ° C - 60 ° C .

In still another aspect, a method for preparing an oil-in-water cosmetic cosmetic composition comprising the steps of: preparing an oil phase comprising a ceramide and a glucoside surfactant; An aqueous phase; mixing the prepared oil phase with the aqueous phase to form a mixture; placing the mixture at 45 ° C - 60 ° C; and subjecting the mixture to a surface treated with a hydrophilic coating agent The powder is mixed to disperse the powder.

According to a specific embodiment, the step of allowing the mixture to stand is playing an important role in forming a layered structure.

In particular, the step of allowing the mixture to stand may be carried out at a temperature of at least 45 ° C, at least 46 ° C, at least 47 ° C, at least 48 ° C, at least 49 ° C, at least 50 ° C, at least 51 ° C. , at least 52 ° C, at least 53 ° C or at least 54 ° C.

Moreover, the step of allowing the mixture to stand may be carried out at a temperature of up to 60 ° C, up to 59 ° C, up to 58 ° C, up to 57 ° C, up to 56 ° C, up to 55 ° C, up to 54 ° C, Up to 53 ° C, up to 52 ° C, up to 51 ° C or up to 50 ° C.

When the temperature is in the above range, a layered structure is stably formed.

According to another embodiment, the step of allowing the mixture to stand may be carried out for at least 20 minutes, at least 25 minutes, at least 30 minutes, at least 35 minutes, at least 40 minutes, at least 50 minutes, at least 60 minutes, at least 70 minutes, at least 80. Minutes or at least 100 minutes.

When the time is within the above range, the layered structure is stably formed.

According to still another specific embodiment, the hydrophilic coating agent comprises at least one selected from the group consisting of cerium oxide and cellulose.

According to still another specific embodiment, the glucoside surfactant is selected from the group consisting of behenyl alcohol, arachidyl alcohol, arachidyl glucoside, C14-22 alcohol, and C12-20 alkyl glucoside. At least one of the groups.

The cosmetic cosmetic composition of the present specification may be formulated as a water-based makeup base or foundation containing a coloring agent, but is not limited thereto. Embodiment of the invention

Hereinafter, the specification will be described in detail with reference to the embodiments and comparative examples. However, the following examples are for illustrative purposes only and are not intended to limit the scope of the specification. Those skilled in the art will appreciate that the following embodiments and test examples may be substituted and substituted without departing from the spirit and scope of the present invention as defined by the appended claims.

The oil-in-water cosmetic cosmetic compositions of Examples 1 and 2 and Comparative Examples 1 and 2, Examples 1 and 2, and Comparative Examples 1 and 2 were prepared according to the compositions shown in Table 1 below. Inorganic powder surface treated with alkyl decane (OTS series available from Daito Kasei, coated in 2% in all cases) / cerium oxide (Sympholight series available from JGC Catalysts and Chemicals Ltd., in titanium dioxide and yellow iron oxide In the case of 10% coating, in the case of red/black iron oxide, 12% coating) / cellulose (C2 series can be obtained by Daito Kasei, in all cases 5% coating) is commercially available The product. [Table 1] 1) An oil phase solution was prepared according to the composition of Table 1 at 75 °C. For example, neurosteroids, hydroxypropyl dipalmitamide MEA (Pc104) and hydroxypropyl bis-laurate MEA (Pc102) are used. 2) In a separate container, an aqueous phase solution is prepared at 75 ° C, mixed with a colorant and dispersed in the aqueous phase solution (in the case of the alkyl decane of Comparative Example 2, with a coloring) The agents are mixed and dispersed in the oil phase solution). 3) The oil phase solution of step 1) is added to the aqueous phase solution of step 2), and the resulting mixture is stirred and mixed using a homomixer. 4) The mixture was kept at a cooling temperature of about 52 ° C for about 35 minutes, cooled to 30 ° C, and then completely degassed to obtain an oil-based cosmetic cosmetic composition.

Examples 3 and 4 and Comparative Examples 3-5 The aqueous oil-based cosmetic cosmetic compositions of Examples 3 and 4 and Comparative Examples 3, 4 and 5 were prepared in accordance with the compositions shown in Table 2 below. [Table 2] 1) An oil phase solution was prepared according to the composition of Table 2 at 75 °C. For example, neurosteroids use hydroxypropyl dipalmitamide MEA (Pc104) and hydroxypropyl bis-laurate MEA (Pc102). 2) In a separate container, an aqueous phase solution was prepared at 75 °C. 3) The oil phase solution of step 1) is added to the aqueous phase solution of step 2), and the resulting mixture is stirred and mixed using a homomixer. 4) The mixture is maintained at a cooling temperature of about 52 ° C for about 35 minutes, mixed with a colorant and dispersed in the mixture. 5) The mixture was cooled to 3 ° C and then completely degassed to obtain an oil-based cosmetic cosmetic composition.

[ Test Example 1] Comparative stability In order to determine the stability of the cosmetic composition composition of the present specification, each of Examples 1-4 and Comparative Examples 1-5 was taken out in an amount of 10 g and each sample was introduced into a low temperature. Thermostat (4 ° C), thermostat (30 ° C), high temperature thermostat (45 ° C) and a 24-hour cycle chamber from -10 ° C to 45 ° C temperature cycle, observe the formulation Change to determine stability. The results are shown in Tables 3 and 4 below. [table 3] As can be seen from the results of Table 3, Comparative Example 1 showed poor stability because the layered structure was destroyed by uncoated (unsurface treated) inorganic powder to cause de-emulsification. Comparative Example 2, which coated the hydrophobic alkyl decane, was unable to form itself due to phase inversion during the preparation process. Examples 1 and 2 in which hydrophilic cellulose and ceria were coated form a multilayer lamellar liquid crystal having a particle diameter of 2 μm or more, but were slightly unstable in terms of long-term stability at 45 °C. [Table 4] A different method was used to prepare a multilayer lamellar liquid crystal by maintaining the reaction mixture at about 52 ° C for about 35 minutes and dispersing a different type of pigment therein. The results are shown in Table 4. It can be seen that Comparative Example 3 shows a low yield because the previously formed multi-layered layer structure is destroyed by the non-surface treated inorganic powder and the particle size is excessively reduced, resulting in gelation at 45 °C. Comparative Example 4 had no production value because the inorganic powder coated with the hydrophobic alkyl decane was introduced after the formation of the oily emulsion in the water, and the powder could not be uniformly dispersed in the emulsion. On the other hand, Examples 3 and 4 coated with hydrophilic cellulose and cerium oxide retained the previously formed multilayer lamellar liquid crystal and were stable at 45 ° C for 6 months, thus exhibiting excellent phase stability. This indicates that the use of an inorganic powder surface-treated with a hydrophilic material in the neurosteroid-containing composition provides an excellent effect of avoiding gelatinization of such neurosteroids while maintaining the multi-layered lamellar liquid crystal. Comparative Example 5 was not gelatinized and stable because it contained no neuroguanamine.

[ Test Example 2] Evaluation of skin wettability retention In order to determine skin moisturizing retention after application of a cosmetic cosmetic composition, 80 adult males and females of 30 or 40 years old were each administered Example 3 And 4 and the cosmetic cosmetic composition of Comparative Example 5 to the inside of the face and the forearm. Then, a skineometer (CM820 courage Khazaka electronic GmbH, Germany) was used to determine the skin water content for 24 hours. Before the application of each composition, the skin water content was measured in advance under constant temperature and humidity conditions (24 ° C, humidity 40%) using the skin moisture tester, and the measured values were used as reference values. Further, the change in skin water content was measured at the time of use, after 2 hours of use, after 4 hours of use, and after 8 hours of use. The results are shown in Table 5 below. <Skin moisture tester> Principle: The amount of water present in the skin is determined by the following methods to determine the moisturizing effect: the ionic strength of the water is measured by a sensor, the ionic strength is digitized, and the amount of water is calculated. 1) A skin moisture tester probe is placed in the desired position on the skin. 2) When the probe is pressed against the skin, the capacitance of the skin is digitized via the sensor and displayed on the screen. 3) Once determined, wipe the sensor with a wipe (such as Kim Wipe) and repeat it at different locations to determine. [table 5] From the results of Table 5, it can be seen that the cosmetic cosmetic compositions of Examples 3 and 4 containing the neurosteroids of the present specification show a higher increase in skin water content after use than Comparative Example 5 containing no neuropterin. The skin moisturizing effect thus increased can be maintained for at least 8 hours. Further, after the completion of the test, the test group was investigated to examine the effect of improving skin dryness after using each cosmetic cosmetic composition. The evaluation results of the average values are shown in Table 6 below (5-point scale). [Table 6] The results of Table 6 show that, compared with Comparative Example 5, the cosmetic cosmetic compositions of Examples 3 and 4 which stabilize the neuronamine by using an inorganic powder surface-treated with a hydrophilic material, have been shown to improve dryness of the skin. Significantly higher effect.

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Claims (14)

An oil-in-water cosmetic cosmetic composition comprising an aqueous phase and an oil phase, the composition comprising an inorganic powder surface-treated with a hydrophilic coating agent and dispersed in the aqueous phase, and having a nerve-containing Multilayer layered structure of guanamine. The oil-in-water cosmetic cosmetic composition according to claim 1, wherein the hydrophilic coating agent comprises at least one selected from the group consisting of cerium oxide and cellulose. The oil-in-water cosmetic cosmetic composition according to claim 1, wherein the inorganic powder surface-treated with a hydrophilic coating agent comprises a coating agent in a proportion of 2 to 15% by weight based on the total weight of the inorganic powder. . The oil-in-water cosmetic cosmetic composition according to claim 1, wherein the multilayered layered structure comprises a glucoside surfactant. The oil-in-water cosmetic cosmetic composition according to claim 4, wherein the glucoside surfactant is selected from the group consisting of behenyl alcohol, arachidyl alcohol, arachidyl glucoside, C14-22 alcohol and At least one of the group consisting of C12-20 alkyl glucosides. The oil-in-water cosmetic cosmetic composition according to claim 1, wherein the neural amine is selected from at least one of natural nervous amines and neurosteroids. The oil-in-water cosmetic cosmetic composition according to claim 6, wherein the natural neural amine is selected from the group consisting of neuropterin 1, neuropterin 2, neuropterin 3, neuropterin 4, and neural amine 5 At least one of neural amine 6, neuropterin 7 and neuropterin 8. The oil-in-water cosmetic cosmetic composition according to claim 6, wherein the neurosteroid is selected from at least one of the compounds represented by the following Chemical Formulas 1-6: [Chemical Formula 1] (wherein R is a C9-C21 saturated or unsaturated fatty chain) [Chemical Formula 2] (where n is 1 or 2; and each R and R' is a C9-C21 saturated or unsaturated fatty chain) [Chemical Formula 3] [wherein m and n are the same or different and each represents an integer of 1-3; k and l are the same or different and each represents 1 or 2; j is 0 or 1; R and R' are the same or different and each represents C1-C31 straight a chain or branched saturated or unsaturated alkyl group with or without a hydroxyl group; A ¹ , A ² and A ^{3 are the} same or different and each represents H or any substituent represented by the structure shown below , provided that A ¹ , A ² and A ³ cannot represent H at the same time: and (wherein each of M, M ¹ and M ² is selected from the group consisting of basic metals, lysine, arginine, histidine, triethanolamine, ammonia, polyquaternium-4, polyquaternium-6, Polyquaternium-7, polyquaternium-10, polyquaternium-11, polyquaternium-16, dodecyldimethylbenzylammonium chloride and octadecyldimethylbenzyl a group consisting of ammonium chloride, and L is an alkaline earth metal)] [Chemical Formula 4] [wherein R and R' are the same or different and each represents a C10-C32 straight or branched saturated or unsaturated alkyl group with or without a hydroxyl group; R ³ and R ^{4 are the} same or different and each Represents H or a C1-C4 alkyl group or a hydroxyalkyl group; and R ⁵ is -A or -CH ₂ CH ₂ OA, wherein A is any substituent represented by the structure: and (wherein each of M, M ¹ and M ² is selected from the group consisting of basic metals, lysine, arginine, histidine, triethanolamine, ammonia, polyquaternium-4, polyquaternium-6, Polyquaternium-7, polyquaternium-10, polyquaternium-11, polyquaternium-16, dodecyldimethylbenzylammonium chloride and octadecyldimethylbenzyl a group consisting of ammonium chloride, and L is an alkaline earth metal)] [Chemical Formula 5] [wherein m and n are the same or different and each represents an integer from 1 to 4; R and R' are the same or different and each represents a C1-C31 straight or branched saturated or unsaturated alkyl group, with or without a monohydroxy group; and A ₁ and A _{2 are the} same or different and each represents H or any substituent represented by the structure: and (wherein M, M ¹ and M ² are selected from the group consisting of basic metals, lysine, arginine, histidine, triethanolamine, ammonia, polyquaternium-4, polyquaternium-6, poly Quaternary ammonium salt-7, polyquaternium-10, polyquaternium-11, polyquaternium-16, dodecyldimethylbenzylammonium chloride and octadecyldimethylbenzyl chloride Group of ammonium compounds, and L is an alkaline earth metal)] [Chemical Formula 6] [wherein m and n are the same or different and each represents an integer of 1-3; k and l are the same or different and each represents 1 or 2; j is 0 or 1; A ¹ , A ² and A ^{3 are the} same or different and each represents H or any substituent represented by the structure: and (wherein each M, M ¹ and M ² is an alkali metal or a nitrogen-containing organic base, and L is an alkaline earth metal); R is a substituent having the following structure: (wherein B is a methyl group at the 5-, 7- or 8-position of tocopherol, m is an integer from 1 to 3, and D is -CH ₂ (CH ₃ )-CH- or -CH(CH ₃ )=C -)]. The oil-in-water cosmetic cosmetic composition according to claim 1, wherein the inorganic powder surface-treated with a hydrophilic coating agent comprises at least one titanium oxide selected from the surface treated with a hydrophilic coating agent and Iron oxide surface treated with a hydrophilic coating agent. The oil-in-water cosmetic cosmetic composition according to claim 1, wherein the inorganic powder surface-treated with a hydrophilic coating agent is used in an amount of 0.01 to 25 wt% based on the total weight of the composition. The oil-in-water cosmetic cosmetic composition according to claim 1, wherein the nervous amine is used in an amount of 0.01 to 20% by weight based on the total weight of the composition. The oil-in-water cosmetic cosmetic composition according to claim 1, wherein the layered structure has a size of from 2 μm to 30 μm. A method for preparing any one of the oil-in-water cosmetic cosmetic compositions according to any one of claims 1 to 12, comprising the steps of: preparing an oil phase comprising a ceramide and a glucoside surfactant And mixing an aqueous phase with an inorganic powder surface-treated with a hydrophilic coating agent to disperse the powder; mixing the prepared oil phase with the aqueous phase to form a mixture; and placing the mixture at 45° C-60 ° C. A method for preparing any one of the oil-in-water cosmetic cosmetic compositions according to any one of claims 1 to 12, comprising the steps of: preparing an oil phase comprising a ceramide and a glucoside surfactant Preparing an aqueous phase; mixing the prepared oil phase with the aqueous phase to form a mixture; placing the mixture at 45 ° C - 60 ° C; and subjecting the mixture to surface treatment with a hydrophilic coating agent The inorganic powder is mixed to disperse the powder.