KR101547528B1 - A water-in-oil pickering emulsion cosmetic composition and process of the preparation thereof - Google Patents

Abstract

The present invention relates to a water-in-oil type pickling emulsion cosmetic composition and a method for producing the same, and more particularly, to a water-in-oil type skin ring cosmetic composition comprising an aqueous phase, an oily phase and an additive phase, wherein the oily phase is a polymethylmethacrylate powder According to the present invention, which includes silica powder, it is possible to improve skin itching and redness by emulsifying agent by using powder and silica powder which are surface-treated with polymethyl methacrylate as a powder instead of an emulsifier, It is possible to obtain a cosmetic having excellent skin-affinity, high absorption rate, good spreadability and improved skin moisturizing ability. In addition, it is possible to develop a product that moisturizes and moisturizes the skin with a function that keeps the skin supple without the skin irritation caused by the emulsifier.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water-in-oil type pickling emulsion cosmetic composition and a process for producing the same,

The present invention relates to a water-in-oil type pickling emulsion cosmetic composition and a method for producing the same, and more specifically, it relates to a water-in-oil type pickling emulsion cosmetic composition and a method for producing the same. More specifically, the use of polymethylmethacrylate and silica as a powder instead of an emulsifier improves adverse effects caused by emulsifiers, To a water-in-oil type pickling emulsion cosmetic composition having a high water absorption rate and improved wettability and skin moisturizing effect, and a process for producing the same.

Cosmetics are originally used as a means of enhancing or restoring the original defensive function against the effects of the external environment, such as dust, chemicals, microorganisms, etc., and internal substances such as water, fat and electrolytes. If this function is weakened, the toxic or allergic skin reaction will occur due to the increase of adsorption of toxic substances or damage by microorganisms. Another purpose of basic cosmetics is to supplement the loss of moisture and fat in the skin caused by daily cleansing. Especially when the skin's self-healing ability is lacking. In addition, basic cosmetics have the function of protecting the skin from environmental factors, especially sun and wind, and retarding aging.

Emulsification refers to a single phase containing a fine phase surrounded by an emulsifier. For example, if the fine phase is water particles, it is a water-in-oil emulsion, and if it is an oil particle, it is an underwater type emulsion. Generally, emulsification requires an emulsifier because one liquid must disperse the other liquid semi-permanently. The emulsifier is a molecule having an amphiphilic structure and has a hydrophilic portion and a hydrophilic portion.

Particles that are finely dispersed in one phase in the emulsion are encapsulated with an emulsifier film. The emulsifier is located at the interface between the two liquids and serves to lower the interfacial tension. It forms an oil / water interface film at the interface of the phase to prevent the particles from coalescing.

Traditional emulsifiers are divided into ionic and nonionic based on the nature of their hydrophilic moieties. Ionic emulsifiers are again divided into anionic, cationic and amphoteric emulsifiers. Representative examples of anions are soap, which is a fatty acid salt. A representative example of a cation is a quaternary ammonium compound. The nonionic emulsifier also has hydrophilic moieties such as glycerol, polyglycerol, sorbitol, carbohydrate, polyoxyethylene glycol and the like, and is formed by ester bonding or ether bonding with a lipophilic moiety such as fatty acid and fatty alcohol.

Many commercial emulsifiers are used with safety clearances, but nonetheless chemical emulsifiers can cause irritation or cause allergies. Emulsifiers also have a harmful effect on the skin. Specifically, most emulsifiers tend to solubilize the lipids of the skin, like detergents, to form micelles. The skin lipids of the grainy boundary are likely to be solubilized in emulsifiers that make micelles like general detergents. Loss of lipids weakens the barrier and increases skin permeability. Higher permeability membranes can easily lose moisture and produce muddy, dry skin. In addition, penetration of foreign matter is facilitated, resulting in a sensitive skin reaction.

Due to the nature of these emulsifiers, we have found natural emulsifiers that can be obtained from nature. Among them, lecithin is widely used. However, pure lecithin is not widely used in cosmetics due to its problem of detachment and discoloration. Hydrogenated lecithin, which is widely used, has a packing parameter of more than 1/3 and less than 1 in its chemical structure. It is stronger in nature.

Examples of emulsions that do not contain an emulsifier include an emulsification method using a pseudo emulsifier or a method using a polymer having amphiphilic properties. The former is a method in which a temporary emulsion is formed using a pseudo emulsifier and then a high pressure energy is applied to form a stable emulsion (for example, U.S. Patent No. 6,777,450), and the latter is a method of emulsifying a polymer using a hydrophilic moiety and a lipophilic moiety to be. However, there is a disadvantage that it is difficult to emulsify in the form of a water-in-oil type with these emulsifying methods.

As another method, there is a picking emulsion using organic or inorganic particles instead of a surfactant. Particles used in place of the surfactant in this emulsification method have properties such that the dispersion medium is well wettable but not well dispersed. The wetting ability of the particles is directly related to the contact angle of the particles at the interface of the water-oil, and is a very important property for allowing the particles to be arranged at the interface like the surfactant. In the case of particles that are well wetted with water, such as silica, they will stabilize the underwater type emulsion and stabilize the water-in-oil type emulsion in the case of wettable particles in oils such as carbon black. However, if the particles are too hydrophilic or too lipophilic, the particles are not present at the interface and are dispersed in water and oil, respectively. For example, in Korean Patent Application No. 2003-0069400, hydrophilic silica and lipophilic titanium dioxide are contained in the inner phase to make an oil-in-water type emulsion, and Korean Patent Application No. 2002-0054603 discloses an amphiphilic surfactant called polymethylsilsesquioxane The water - in - oil emulsion was made using the particles. In addition, US Pat. Nos. 6,803,049 and 5,833,951 also report pickling oil emulsions using inorganic particles.

However, these pickling emulsions have the advantage of improving the skin safety and usability of emulsions using conventional emulsifiers, but they are disadvantageous in that their water resistance is poor.

Accordingly, the present inventors have continued to develop a cosmetic composition which does not use an emulsifier and thereby improves skin itching and redness by emulsifying agents, has a feeling of use similar to an underwater type, has excellent skin affinity, high water absorption rate, A water-in-oil type oil-in-water emulsion, which is stabilized by adsorbing it on the oil-water interface using powder and silica powder surface-treated with polymethyl methacrylate as a powder instead of the emulsifier, is completed.

Accordingly, the technical problem to be solved by the present invention is to provide a water-in-oil type cosmetic composition which is improved in skin feel and feel, has a good feel like a water type, has excellent skin affinity, high water absorption rate, .

Another object of the present invention is to provide a method for preparing the above water-in-oil type cosmetic composition.

In order to accomplish the above object, the present invention provides a water-in-oil type skin ring cosmetic composition comprising an aqueous phase, an oil phase and an additive, wherein the oil phase comprises polymethylmethacrylate powder and silica powder as powders instead of emulsifiers Wherein the oil-in-water type Peter ring cosmetic composition comprises:

According to another aspect of the present invention, there is provided a method of manufacturing a water-in-oil type Peter ring cosmetic composition, which comprises the steps of:

(S1) mixing the moisturizing agent, the purified water and the preservative, and maintaining the temperature at 70 to 80 캜, stirring the mixture at a speed of 1,500 to 2,000 rpm for 5 to 10 minutes, and uniformly mixing to prepare an aqueous phase (A);

(S2) mixing powder and oil composed of polymethylmethacrylate and silica and heating and stirring at 70 to 80 占 폚 to uniformly mix to prepare an oil phase (B);

(S3) stirring the water phase (A) and the oil phase (B) at a speed of 2,000 to 2,500 rpm for 5 to 8 minutes and then cooling to 40 to 45 ° C;

(S4) The aqueous phase (C) containing the preservative is stirred at 55 to 60 DEG C and then added to the mixture of step (3) and mixed with the homomixer at a speed of 1,500 to 2,000 rpm for 2 to 3 minutes step;

(S5) and an additive part (D) containing oil are uniformly mixed and then added to a vacuum emulsifier, stirred for 10 to 15 minutes at a speed of 25 to 30 rpm in a paddle mixer, and cooled to 30 to 35 DEG C .

According to the present invention, by using powder and silica powder surface-treated with polymethylmethacrylate as a powder instead of an emulsifier, it is possible to improve skin itching and redness caused by an emulsifying agent, to provide a feeling like a watery type, It is possible to obtain a cosmetic having good wettability and improved skin moisturizing ability. In addition, it is possible to develop a product that moisturizes and moisturizes the skin with a function that keeps the skin supple without the skin irritation caused by the emulsifier.

The present invention provides a water-in-oil type Peter ring cosmetic composition comprising an aqueous phase portion, an oil phase portion and an additive portion, wherein the oil phase portion contains polymethylmethacrylate powder and silica powder as a powder instead of an emulsifier do.

The present invention relates to a water-in-oil type skin-ring cosmetic composition using powders and silica powders surface-treated with polymethylmethacrylate as a powder instead of an emulsifier, and has a feel like a water droplet popping on the surface of the skin. It is a formulation that gives a feeling of moisturizing.

Preferably, in the water-in-oil type Peter ring cosmetic composition of the present invention, the powder is contained in an amount of 0.5 to 5% by weight based on the total weight of the water-in-oil type cosmetic composition.

Preferably, the powder in the water-in-oil type Peter ring cosmetic composition of the present invention is characterized in that the weight ratio of polymethyl methacrylate and silica is 1: 2 to 2: 1.

Preferably, the water-in-oil type Peter ring cosmetic composition of the present invention comprises 15 to 50% by weight of an oily portion, 10 to 85% by weight of water, and 2 to 10% by weight of an additive portion.

The water-in-oil type Peter ring cosmetic composition of the present invention comprises 1 to 15% by weight of a humectant, 30 to 80% by weight of purified water and 0.1 to 2 parts by weight of a preservative based on the total weight of the cosmetic composition. 0.50 to 5.00 wt% of a powder and 3 to 40 wt% of an oil; 0.01 to 0.5% of an incense, and 1 to 5% by weight of an oil.

Examples of the humectant contained in the water include hyaluronic acid, glycerin, butylene glycol, glyceryl acrylate / acrylic acid copolymer, and the like.

In addition, a thickener such as a carbomer may be further added to the top of the water for stabilizing the formulation.

Examples of the oil contained in the oil phase portion include hydrogenated polyisobutene, caprylic / capric triglyceride, and cetyl ethylhexanoate which can effectively dissolve ceramide as a raw material, and examples of the oil used in the additive part As the oil, butter such as mango seed butter, shea butter can be used.

Meanwhile, the present invention provides a method for preparing a water-in-oil type pickling emulsion cosmetic composition, which comprises the following steps:

(S1) mixing the moisturizing agent, the purified water and the preservative, and maintaining the temperature at 70 to 80 캜, stirring the mixture at a speed of 1,500 to 2,000 rpm for 5 to 10 minutes, and uniformly mixing to prepare an aqueous phase (A);

(S2) mixing powder and oil composed of polymethylmethacrylate and silica and heating and stirring at 70 to 80 占 폚 to uniformly mix to prepare an oil phase (B);

(S3) stirring the water phase (A) and the oil phase (B) at a speed of 2,000 to 2,500 rpm for 5 to 8 minutes and then cooling to 40 to 45 ° C;

(S4) The aqueous phase (C) containing the preservative is stirred at 55 to 60 DEG C and then added to the mixture of step (S3) and mixed with the homomixer at a speed of 1,500 to 2,000 rpm for 2 to 3 minutes step;

(S5) and an additive part (D) containing oil are uniformly mixed and then added to a vacuum emulsifier, stirred for 10 to 15 minutes at a speed of 25 to 30 rpm in a paddle mixer, and cooled to 30 to 35 DEG C .

According to the present invention, by using powder and silica powder surface-treated with polymethylmethacrylate as a powder instead of an emulsifier, it is possible to improve skin itching and redness caused by an emulsifying agent, to provide a feeling like a watery type, It is possible to obtain a cosmetic having good wettability and improved skin moisturizing ability. In addition, it is possible to develop a product that moisturizes and moisturizes the skin with a function that keeps the skin supple without the skin irritation caused by the emulsifier.

The water-in-oil type pickling emulsion cosmetic composition of the present invention may be in an emulsified form such as cream, lotion, lipstick, makeup base, foundation, ointment, gel, patch or spray.

Hereinafter, embodiments of the present invention will be described in detail to facilitate understanding of the present invention. However, the embodiments according to the present invention can be modified into various other forms, and the scope of the present invention should not be construed as being limited to the following embodiments. Embodiments of the invention are provided to more fully describe the present invention to those skilled in the art.

≪ Examples 1-3 >

(A) and (C), an oily phase (B) and an additive (D) were mixed according to the composition shown in Table 1 below. Ceramide was used as a cosmetic raw material.

(1) The aqueous phase (A) was put into a vacuum emulsification vessel capable of temperature control and stirring, stirred at a rate of 1,500 to 2,000 rpm for 5 to 10 minutes with a homomixer while maintaining the temperature at 70 to 80 캜, .

(2) The oily phase (B) is put into an oily melting tank capable of stirring, and the mixture is heated and stirred at 70 to 80 DEG C to be uniformly mixed. The powder is mixed with polymethylmethacrylate and silica in a weight ratio of 1: 1 and the powder is thoroughly stirred before being incorporated into the vacuum emulsification tank.

(3) The above-mentioned oily phase of the oily oven is put into the upper part of the vacuum emulsification tank and mixed with the homomixer at a speed of 2,000 to 2,500 rpm for 5 to 8 minutes and then cooled to 40 to 45 ° C.

(4) The aqueous phase (C) is stirred at 55 to 60 ° C with stirring to uniformly mix.

(5) The aqueous phase (C) phase is added to a vacuum emulsification tank and mixed by a homomixer at a speed of 1,500 to 2,000 rpm for 2 to 3 minutes.

(6) The additive part (D) is uniformly mixed in an extra dissolving tank and added to a vacuum emulsification vessel. The paddle mixer is stirred at a speed of 25 to 30 rpm for 10 to 15 minutes and then cooled to 30 to 35 캜. Cream.

≪ Comparative Examples 1 and 2 >

As shown in the following Table 2, cosmetic materials were prepared in the same manner as in Example 1 except that the surfactant polysorbate 60, which is not powder, was used in the oily phase.

≪ Test Example 1 > Viscoelasticity test

Viscoelastic (%) was investigated for the cosmetic compositions of the present invention prepared in Examples 1 to 3 according to the test regulations of the Korea Institute of Construction Materials. The results are shown in Table 3 below.

As a result, it was found that all of Examples 1, 2 and 3 showed good results, and that Comparative Examples 1 and 2 were less viscoelastic than the cosmetic of the present invention.

≪ Test Example 2 > Skin moisture test

In order to examine the skin moisturizing effect of the cosmetic of the present invention, the following experiment was conducted. The cosmetics of the present invention prepared in Example 1 and the cosmetics of Comparative Example 1 were divided into two groups each consisting of 20 persons per 20 to 40 persons without skin disease, Face and forehead. The skin conductivity was measured using a corneometer (CM820 courage Khazaka electronic GmbH, Germany) under the constant temperature and humidity conditions (24 ° C, 40% humidity) before the start of application, and the skin conductivity was measured at 1 week, 2 weeks, The skin conductivity was measured and the rate of increase was evaluated. The results are shown in Table 4 below.

As can be seen from the results of Table 4, the skin conductivity of Example 1 of the present invention was much higher than that of Comparative Example 1. That is, it was found that the cosmetic of the present invention excelled in improving the skin moisturizing ability.

≪ Test Example 3 >

In order to examine the skin moisturizing effect of the cosmetic of the present invention, the following experiment was conducted. The cosmetic compositions of the present invention prepared in Example 1 and the cosmetic compositions prepared in Comparative Example 1 were divided into two groups of 20 to 20 persons per 20 to 40 groups without skin disease for 1 month Face and forehead. The subjects were evaluated for itching, redness, skin pulling, and roughness after using Examples 1 to 3 and Comparative Examples 1 and 2. The evaluation was divided into 1 to 5 points (satisfaction with the higher number) for the effect of the product on each item of itching, redness, skin pulling, roughness change, and the results are shown in Table 5 below .

As shown in the results of Table 5, it can be seen that the cosmetic compositions of Examples 1 to 3 of the present invention are superior in the effects of improving the itching, redness, skin pulling and roughness as compared with the cosmetic compositions of Comparative Examples 1 and 2 there was.

In addition, although the finish feeling was almost the same, the visual effect in which the water drop appeared to be broken was the best in Example 3, and the moisturizing power was almost the same.

However, in the case of Comparative Example 1, the emulsion was not well-formed and the oil was separated from the upper emulsion. In Comparative Example 2, the emulsifying power was good, but there was no phenomenon that the feeling of use was stiff and the moisture drop was broken.

According to the present invention, by using powder and silica powder surface-treated with polymethylmethacrylate as a powder instead of an emulsifier, it is possible to improve skin itching and redness caused by an emulsifying agent, to provide a feeling like a watery type, It is possible to obtain a cosmetic having good wettability and improved skin moisturizing ability. In addition, it is possible to develop a product that moisturizes and moisturizes the skin with a function that keeps the skin supple without the skin irritation caused by the emulsifier.

Claims (9)

A water-in-oil type Peter ring cosmetic composition comprising 15 to 50% by weight of an aqueous phase, 15 to 50% by weight of an oil phase, and 2 to 10% by weight of an additive, wherein the oil phase comprises polymethylmethacrylate and silica 1. A water-in-oil type Peter ring cosmetic composition comprising a powder in a weight ratio of 1: 2 to 2: 1 in an amount of 0.5 to 5% by weight based on the total weight of the cosmetic composition. delete delete delete The method according to claim 1,
1 to 15% by weight of a moisturizer, 30 to 80% by weight of purified water and 0.1 to 2 parts by weight of a preservative; 0.50 to 5.00 wt% of a powder and 3 to 40 wt% of an oil; 0.01 to 0.5% by weight of an incense, and 1 to 5% by weight of an oil. 6. The method of claim 5,
Wherein said humectant is hyaluronic acid, glycerin, butylene glycol or glyceryl acrylate / acrylic acid copolymer. 6. The method of claim 5,
Wherein said oil is hydrogenated polyisobutene, caprylic / capric triglyceride, cetyl ethylhexanoate, mango seed butter or shea butter. The method according to claim 1,
Wherein the water-in-oil type pickling emulsion cosmetic composition is in the form of a cream, a lotion, a lipstick, a makeup base, a foundation, an ointment, a gel, a patch or a spray. 9. A method for preparing a water-in-oil type pickling emulsion cosmetic composition according to any one of claims 1 to 8, comprising the steps of:
(S1) mixing the moisturizing agent, the purified water and the preservative, and maintaining the temperature at 70 to 80 캜, stirring the mixture at a speed of 1,500 to 2,000 rpm for 5 to 10 minutes, and uniformly mixing to prepare an aqueous phase (A);
(S2) mixing powder and oil composed of polymethylmethacrylate and silica and heating and stirring at 70 to 80 占 폚 to uniformly mix to prepare an oil phase (B);
(S3) stirring the water phase (A) and the oil phase (B) at a speed of 2,000 to 2,500 rpm for 5 to 8 minutes and then cooling to 40 to 45 ° C;
(S4) The aqueous phase (C) containing the preservative is stirred at 55 to 60 DEG C and then added to the mixture of step (3) and mixed with the homomixer at a speed of 1,500 to 2,000 rpm for 2 to 3 minutes step;
(S5) and an additive part (D) containing oil are uniformly mixed and then added to a vacuum emulsifier, stirred for 10 to 15 minutes at a speed of 25 to 30 rpm in a paddle mixer, and cooled to 30 to 35 DEG C .