KR102185823B1 - Nano emulsion cosmetic composition and a method of preparing thereof - Google Patents

Abstract

The present invention relates to a nanoemulsion cosmetic composition and a method for preparing the same, and in particular, to a nanoemulsion cosmetic composition comprising polyglyceryl-3 methyl glucose distearate, glyceryl stearate and methylglucose sesquistearate.
According to the present invention, it has excellent emulsifying power, can significantly reduce peculiar odors and off-flavors at high temperatures, is safe for the human body by using natural materials, can reduce the manufacturing time of nanoemulsions, and has excellent formulation stability. A cosmetic composition can be provided.

Description

Nano emulsion cosmetic composition and a method of preparing thereof

The present invention relates to a nanoemulsion cosmetic composition and a method of manufacturing the same, particularly, has excellent emulsifying power, can significantly reduce peculiar odors and off-flavors at high temperatures, and is safe for the human body by using a natural substance, and the preparation time of the nanoemulsion It is an object of the present invention to provide a nanoemulsion cosmetic composition and a method of manufacturing the same, which can reduce the composition and have excellent formulation stability.

The content described below merely provides background information related to the present invention and does not constitute the prior art.

Conventionally, the method of making nanoemulsions in cosmetic compositions was to prepare nanoemulsions mainly using lecithin.

For example, in Korean Patent No. 10-0949848, lecithin was prepared in the form of a liposome to prepare a nanoemulsified cosmetic composition.

However, nano cosmetic compositions using lecithin continue to raise problems due to peculiar odor and deodorant at high temperatures, and the production cost is high, so there is an urgent need to develop a technology to replace lecithin to manufacture nanoemulsions. .

In addition, as warnings about the safety of the human body for long-term use of cosmetics to which artificial substances are applied have recently increased, demand for cosmetics derived from natural substances is steadily requested.

Korean Patent No. 10-0949848

The object of the present invention is excellent in emulsifying power, can significantly reduce peculiar odor and off-flavor at high temperature, is safe for the human body by using a natural substance, can reduce the manufacturing time of nanoemulsion, and has excellent formulation stability. It is an object of the present invention to provide an emulsion cosmetic composition and a method for producing the same.

The present invention for achieving the above object

It provides a nanoemulsion cosmetic composition comprising polyglyceryl-3 methyl glucose distearate, glyceryl stearate, and methyl glucose sesquistearate.

The polyglyceryl-3 methyl glucose distearate, glyceryl stearate and methyl glucose sesquistearate may have a total weight of 1 to 50% by weight of the nanoemulsion cosmetic composition.

Preferably, the polyglyceryl-3 methyl glucose distearate, glyceryl stearate, and methyl glucose sesquistearate are included in a weight ratio of 2-5: 1-5: 1-3.

The nanoemulsion cosmetic composition may be an oil-in-water type nanoemulsion cosmetic composition.

In addition, the present invention

a) a first step of uniformly mixing the oily components;

b) a second step of uniformly mixing an aqueous phase component including polyglyceryl-3 methyl glucose distearate, glyceryl stearate, and methyl glucose sesquistearate;

c) a third step of emulsifying by mixing the oil phase component of the first step and the aqueous phase component of the second step;

It provides a method for producing a nanoemulsion cosmetic composition comprising a.

The third step may be emulsifying at high pressure using a microfluidizer.

According to the present invention, it has excellent emulsifying power, can significantly reduce peculiar odors and off-flavors at high temperatures, is safe for the human body by using natural materials, can reduce the manufacturing time of nanoemulsions, and has excellent formulation stability. A cosmetic composition can be provided.

Hereinafter, the present invention will be described in detail so that those of ordinary skill in the art can easily implement the present invention. However, the present invention may be implemented in various different forms and is not limited to the embodiments described herein.

Throughout the specification, when a part "includes" a certain component, it means that other components may be further included rather than excluding other components unless otherwise stated.

Hereinafter, the present invention will be described in detail.

In order to solve the problems of the nanoemulsion cosmetic composition using lecithin, the present inventors were studying an emulsifier that is naturally derived while having the same emulsifying power of lecithin and does not have a peculiar odor or bad odor. Polyglyceryl-3 methyl glucose distearate , When preparing a nanoemulsion by mixing glyceryl stearate and methylglucose sesquistearate, it was confirmed that the desired effect was exhibited and the present invention was completed.

The nanoemulsion cosmetic composition of the present invention is characterized by comprising polyglyceryl-3 methyl glucose distearate, glyceryl stearate, and methyl glucose sesquistearate.

The polyglyceryl-3 methyl glucose distearate, glyceryl stearate and methyl glucose sesquistearate may each be commercially known, and the total weight may be 0.1 to 50% by weight of the nanoemulsion cosmetic composition. have. If the total weight is less than 0.1% by weight, it is difficult to make a stable nanoemulsion cosmetic due to insufficient emulsification power, and if it exceeds 50.0% by weight, it is difficult to match the ratio of the inner and outer wounds for making the emulsion, and there is a fear that the economical efficiency is deteriorated.

Preferably, the polyglyceryl-3 methyl glucose distearate, glyceryl stearate, and methyl glucose sesquistearate are included in a weight ratio of 2-5: 1-5: 1-3. If it is within the above range, it has excellent emulsifying power, can significantly reduce peculiar odors and off-flavors at high temperatures, is safe for the human body by using a natural substance, can reduce the manufacturing time of nanoemulsions, and can reduce the formulation of the cosmetic composition Excellent stability.

The formulation of the nanoemulsion cosmetic composition according to the present invention is not particularly limited, but it may be preferably an oil-in-water nanoemulsion cosmetic composition. In addition, the nanoemulsion cosmetic composition according to the present invention may include known additives and excipients that can be used in the nanoemulsion cosmetic composition, and specific examples include a moisturizer, a pH adjuster, a metal chelating agent, a thickener, and purified water. , But is not limited thereto.

The nanoemulsion cosmetic composition of the present invention

a) a first step of uniformly mixing the oily components;

b) a second step of uniformly mixing an aqueous phase component including polyglyceryl-3 methyl glucose distearate, glyceryl stearate, and methyl glucose sesquistearate;

c) a third step of emulsifying by mixing the oil phase component of the first step and the aqueous phase component of the second step;

It can be prepared, including.

Specifically, the third step may be emulsifying at high pressure using a microfluidizer.

The oily component of the first step is prepared using an oily component of the components included in the nanoemulsion cosmetic composition, and known oily components used in the art for preparing the nanoemulsion cosmetic composition may be used as the oily component, Specific examples include hydrogenated polydecene, cetyl ethylhexanoate, meadowform seed oil, dimethicone, dicaprylyl carbonate, pentaerythrityl tetraethylhexanoate, phenyltrimethicone, cyclomethicone, tocopheryl Acetate, preservatives, and the like may be used, but are not limited thereto. The mixing of the first step may be mixed at 70 to 80°C.

The water phase component of the second step is prepared by using the water phase component among the components included in the nanoemulsion cosmetic composition, and the water phase component, like the oil phase component, includes a known water phase component used in the manufacture of nanoemulsion cosmetic compositions in the art. In the present invention, in particular, polyglyceryl-3 methyl glucose distearate, glyceryl stearate, and methyl glucose sesquistearate are included as an aqueous phase component. As a specific example, the aqueous component is glycerin, butylene glycol. Disodium EDTA, betaine, preservatives, and the like may be mixed with polyglyceryl-3 methyl glucose distearate, glyceryl stearate, and methyl glucose sesquistearate in purified water, but are not limited thereto.

The mixing of the second step may be mixed at 70 to 80 ℃.

In the third step, c) the oil phase component of the first step and the aqueous phase component of the second step are mixed and emulsified. The method of mixing is not particularly limited, and specifically, the oil phase component of the first step may be gradually added to the aqueous phase component of the second step to be mixed and emulsified, and the mixing may be mixed at 70 to 80°C. Preferably, when cyclomethicone or tocopheryl acetate is used in the nanoemulsion cosmetic composition, cyclomethicone or tocopheryl acetate among the oily components of the first step when mixing is not included in the oily component of the first step, but is brought to room temperature. After preparation, the oil phase component is added to the aqueous phase component, and then continuously added to mix and emulsify. In this case, the emulsifying power is excellent, and the stability of the formulation of the cosmetic composition to be produced is more excellent.

In addition, the emulsification of the third step may be emulsification at high pressure using a microfluidizer, and a specific example may be 2 to 5 treatments at a pressure of 600 to 1500 bar.

The method for preparing a nanoemulsion cosmetic composition according to the present invention may include known additives and excipients that can be used in the nanoemulsion cosmetic composition, and may be included in an oily component or an aqueous phase component, and further after mixing in the third step It is also possible to mix additives and excipients.

Hereinafter, preferred examples are presented to aid in the understanding of the present invention, but the following examples are only illustrative of the present invention and the scope of the present invention is not limited to the following examples.

[Production Example 1]

Polyglyceryl-3 methyl glucose distearate, glyceryl stearate, and methyl glucose sesquistearate were uniformly mixed at a weight ratio of 3:2:2 to prepare an emulsifier.

[Example 1] and [Comparative Example 1]

A nanoemulsion cosmetic composition of O/W formulation was prepared with the composition shown in Table 1 below.

(The unit of content is weight%) division Ingredient name Example 1 Comparative Example 1 Oil phase component 1 Dicaprylyl carbonate 5.0 5.0 Hydrogenated Polydecene 6.0 6.0 Cetylethylhexanoate 5.0 5.0 Pentaerythrityl tetraethylhexanoate 5.0 5.0 Meadow Foam Seed Oil 2.0 2.0 antiseptic 0.3 0.3 Dimethicone 5.0 5.0 Phenyltrimethicone 5.0 5.0 Oily Ingredient 2 Tocopheryl Acetate 0.2 0.2 Cyclomethicone 10.0 10.0 Waterborne ingredients Purified water to 100 to 100 glycerin 3.0 3.0 Butylene glycol 3.0 3.0 Emulsifier of Preparation Example 1 4.0 - Hydrogenated Lecithin
(Product name: lipoid S75-3) - 4.0 antiseptic 0.5 0.5 Disodium EDTA 0.02 0.02 Betaine 3.0 3.0

(1) Oily component 1 was heated (70-75°C) and mixed uniformly.

2) The aqueous component was heated (70-75°C) to uniformly dissolve and mix.

3) Oily component 2 was uniformly mixed at room temperature.

4) After the oil phase component 1 was slowly added to the aqueous phase component while maintaining the temperature at 70-75° C. under stirring, the oil phase component 2 was continuously added and emulsified.

5) After passing (4) three times at 800 bar using a microfluidizer and cooling, a nanoemulsion cosmetic composition was obtained.

[Test Example 1]

In order to compare the particle sizes of the nanoemulsions prepared in Example 1 and Comparative Example 1, the particle size was measured with a particle analyzer, and the results are shown in Table 2. The instrument used for particle analysis was a malvern zetasizer 3000hsa model.

division Example 1 Comparative Example 1 Particle average size (nm) 251 259

Looking at the size of the nanoemulsion from Table 2, the average particle size of Example 1 or Comparative Example 1 did not show a significant difference. Therefore, it can be confirmed that the performance of Preparation Example 1 as an emulsifier is equal to or higher than that of lecithin.

[Test Example 2]

The odor test of the nanoemulsions prepared in Example 1 and Comparative Example 1 was performed. Immediately after preparation, the presence or absence of a specific odor at room temperature was evaluated, and the results are shown in Table 3.

division Example 1 Comparative Example 1 Room temperature X O O: Has a peculiar smell, X: There is no peculiar smell

From Table 3, it was found that lecithin had a specific odor, while the emulsifier of Preparation Example 1 had no specific odor. It can be seen that when the emulsifier of Preparation Example 1 is applied to cosmetics, it does not give customers a feeling of rejection due to odor.

[Test Example 3]

The emulsification stability was tested by standing for 1 month and 2 months at a temperature change from 5° C. to 45° C. to evaluate the off-flavor state, and the results are shown in Table 4.

division Example 1 Comparative Example 1 Room temperature 1 month O O 2 months O O 5℃ 1 month O O 2 months O O 37℃ 1 month O O 2 months O X 45℃ 1 month O X 2 months O X O: No odor, X: No odor

Looking at the results of comparative observation of the stability of off-flavor from Table 4, it can be seen that in Comparative Example 1, off-flavor occurs at a high temperature and thus is unsuitable for use as a cosmetic. It can be seen that the lecithin used in the comparative example has a peculiar odor at room temperature as well as an off-odor at high temperature, so that when it is used in cosmetics, its emotional appeal is deteriorated and there is a problem in stability. On the other hand, it can be seen that there is no problem at all when applied to the emulsifier cosmetic of Preparation Example 1 used in Example 1.

Although the present invention has been described with reference to the above-described embodiments and the accompanying drawings, different embodiments may be constructed within the concept and scope of the present invention. Accordingly, the scope of the present invention is defined by the appended claims and their equivalents, and is not limited by the specific embodiments described herein.

Claims (6)

Polyglyceryl-3 methyl glucose distearate, glyceryl stearate and methylglucose sesquistearate,
The polyglyceryl-3 methyl glucose distearate, glyceryl stearate, and methyl glucose sesquistearate are included in a weight ratio of 2-5: 1-5: 1-3, and the total weight is a nanoemulsion cosmetic composition Nanoemulsion cosmetic composition, characterized in that 0.1 to 50% by weight of. delete delete The method of claim 1,
The nanoemulsion cosmetic composition is a nanoemulsion cosmetic composition, characterized in that the water-in-water type nanoemulsion cosmetic composition. a) a first step of uniformly mixing the oily components;
b) a second step of uniformly mixing an aqueous phase component including polyglyceryl-3 methyl glucose distearate, glyceryl stearate, and methyl glucose sesquistearate;
c) a third step of emulsifying by mixing the oil phase component of the first step and the aqueous phase component of the second step; including,
The polyglyceryl-3 methyl glucose distearate, glyceryl stearate, and methyl glucose sesquistearate are included in a weight ratio of 2-5: 1-5: 1-3, and the total weight is a nanoemulsion cosmetic composition Method for producing a nanoemulsion cosmetic composition, characterized in that 0.1 to 50% by weight of. The method of claim 5,
The third step is a method of manufacturing a nanoemulsion cosmetic composition, characterized in that emulsification at a high pressure of 600 to 1500 bar using a microfluidizer.