KR20210026080A - All-in-one Cosmetic Composition With Balm Type for Cooling Skin Temperature - Google Patents

Abstract

The present invention relates to an all-in-one cosmetic composition for reducing skin temperature, which is in the form of a balm that combines essence, emulsion, and cream. Particularly, the present invention relates to a cosmetic composition in the form of emulsified balm, comprising a hydroxyethyl acrylate/sodium acryloyldimethyltaurate copolymer and hydroxystearic acid at the same time.

Description

All-in-one Cosmetic Composition With Balm Type for Cooling Skin Temperature}

The present invention relates to an all-in-one cosmetic composition for reducing skin temperature in a balm form in which an essence, an emulsion, and a cream are combined. Specifically, it relates to an emulsified balm cosmetic composition comprising hydroxyethyl acrylate/sodium acryloyldimethyltaurate copolymer and hydroxystearic acid at the same time.

In recent years, as life has become more prosperous, people's interest has come to focus on skin beauty. In line with this, the cosmetics industry is developing a variety of products that meet the needs of consumers.

In the past, when consumers choose cosmetics, the focus is only on keeping the skin beautiful and healthy, but recently, products that can be used conveniently along with efficacy and effects have emerged, for example, cosmetics that provide cooling effects. Is being developed.

In general, there are various types of cosmetics such as creams, packs, and gels in cosmetics that give a cooling effect.

As a known form, there are cosmetics that absorb heat from the skin while vaporized by applying a liquefied gas, a peel-off type pack that changes to a gel type, and a cosmetics that applies menthol that makes the skin feel cool.

Korean Patent Laid-Open Publication No. 10-2007-0113552 discloses a cosmetic composition that is vaporized by applying a liquefied gas to absorb heat from the skin. The cosmetic has an advantage of having an excellent cooling feeling, but there is a disadvantage in that other basic cosmetics must be separately applied, and there is a problem that consumers may be concerned about liquefied gas.

Korean Patent Publication No. 10-2015-0029301 discloses a peel-off type modeling mask. The mask exhibits excellent moisturizing power and excellent cooling sensation, but it is cumbersome to mix the two formulations before use.

In addition, in the case of cooling cosmetics that are generally sold, menthol is used, but there is a problem in that menthol is irrelevant to the actual decrease in skin temperature and there are many consumers who have a reluctance to the peculiar menthol scent.

An object of the present invention is to provide a cosmetic composition that does not use harmful gases, does not use raw materials that consumers feel rejection, can be used conveniently, and maintains a cooling feeling for a long time.

In addition, an object of the present invention is to provide a cosmetic composition in the form of a chestnut that can overcome the disadvantages of the conventional cooling formulation.

The above object is achieved by a cosmetic composition for reducing skin temperature, comprising a hydroxyethyl acrylate/sodium acryloyldimethyltaurate copolymer and hydroxystearic acid, and in the form of a chestnut.

Preferably, the cosmetic composition may include 0.1 to 1.0% by weight of hydroxyethyl acrylate/sodium acryloyldimethyltaurate copolymer and 0.5 to 1.5% by weight of hydroxystearic acid based on the total weight of the cosmetic composition. .

Also preferably, the weight ratio of the hydroxyethyl acrylate/sodium acryloyldimethyltaurate copolymer and the hydroxystearic acid may be 1:1 to 1:3.

Also preferably, the cosmetic composition has ^{a hardness of 300 to 430 g/cm 2} at 4° C., a hardness of 210 to 370 g/cm ² at 30° C., and 140 to 300 g/cm at high temperature (45° C.) It may have a hardness of ^{cm 2.}

The cosmetic composition according to the present invention is an all-in-one cosmetic composition comprising an essence, an emulsion, and a cream as a balm-type cosmetic composition that is effective for cooling the skin, and is easy to use and excellent in palatability. Although the cosmetic composition according to the present invention is in the form of a solid chestnut, it has a creamy feeling when applied to the skin, and has an effect of finishing with a feeling like an essence after rolling. In addition, the cosmetic composition according to the present invention forms a solid polymer thermal insulation protective film on the skin surface using fatty acid chains as a pillar to make the skin feel a feeling of cooling continuously, absorbs skin heat through vaporization heat, and keeps the skin temperature low even over time. It has a letting effect.

1 is a photograph of a cosmetic composition in the form of a balm having an effect of reducing skin temperature of the present invention and a photograph showing a state in which the balm form is converted into an essence form when applied to the skin.
FIG. 2 shows experimental results showing differences in skin temperature compared to heat of vaporization in the case of using general purified water with respect to the skin cooling effect of the cosmetic composition according to the present invention.
3 shows the results of testing the cooling feeling and cooling duration compared to a product (Comparative Example 1) having a known cooling effect on the skin cooling effect of the cosmetic composition according to the present invention.

All technical terms used in the present invention, unless otherwise defined, have the following definitions and correspond to the meaning as commonly understood by those of ordinary skill in the relevant fields of the present invention. In addition, although preferred methods or samples are described in the present specification, those similar or equivalent are included in the scope of the present invention.

The term “about” refers to 30, 25, 20, 15, 10, 9, 8, 7, 6, 5, or 30, 25, 20, 15, 10, 9, 8, 7, 6, 5, or relative to a reference amount, level, value, number, frequency, percentage, dimension, size, amount, weight or length. It means an amount, level, value, number, frequency, percentage, dimension, size, amount, weight or length varying by 4, 3, 2 or 1%.

Throughout this specification, unless otherwise required by the context, the terms "comprise" and "comprising" include the steps or components presented, or groups of steps or components, but any other step or component, or It is to be understood that a step or group of components is not excluded.

The present invention relates to a cosmetic composition having an effect of reducing skin temperature in the form of a balm, and characterized in that it includes a hydroxyethyl acrylate/sodium acryloyldimethyltaurate copolymer and a hydroxystearic acid at the same time.

The hydroxyethyl acrylate/sodium acryloyldimethyltaurate copolymer contained in the present invention is a high molecular compound, and is a white powder that is a copolymer component of sodium hydroxyethyl acrylate and acryloyldimethyltaurate monomer. . In general, hydroxyethyl acrylate/sodium acryloyldimethyltaurate copolymer is used for stabilizing unstable emulsification of other ingredients that are not mixed with each other in the manufacture of cosmetics, controlling viscosity, and controlling suspension.In the present invention, while exhibiting an increasing effect, It is used together with hydroxystearic acid, and it is characterized in that it forms a polymer insulating film on the skin surface. Preferably, the hydroxyethyl acrylate/sodium acryloyldimethyltaurate copolymer is preferably contained in an amount of 0.1 to 1.0% by weight based on the total weight of the cosmetic composition.

Hydroxystearic acid contained in the present invention is a high purity oil-soluble active ingredient derived from nature and is a component contained in fermented ginseng a lot. Since it affects the hardness in cosmetic composition formulations, it is widely used in chestnut formulations and sherbet formulations. In the present invention, it is used together with a hydroxyethyl acrylate/sodium acryloyldimethyltaurate copolymer, and is used to give a synergistic effect on reducing skin temperature. Preferably, hydroxystearic acid is preferably contained in an amount of 0.5 to 1.5% by weight based on the total weight of the cosmetic composition.

According to an embodiment of the present invention, the hydroxyethyl acrylate/sodium acryloyldimethyltaurate copolymer and the hydroxystearic acid are included in the cosmetic composition in a weight ratio of 1:1 to 1:3. desirable. If it is less than 1:1, the chestnut shape is not formed, and if it exceeds 1:3, the hardness becomes hard and the spreadability deteriorates.

According to one embodiment of the present invention, the cosmetic composition includes an emulsifier, a skin conditioning agent, and the like. As the emulsifier, glyceryl stearate and PEG-100 stearate may be used, but are not limited thereto.

As the skin conditioning agent, caprylic/capric triglyceride may be used, but is not particularly limited thereto.

The cosmetic composition effective for cooling the skin in the form of a chestnut of the present invention may contain functional ingredients for skin improvement, such as a skin soothing ingredient, a moisturizing ingredient, a wrinkle improving ingredient, a whitening ingredient, and an anti-aging ingredient, and special restrictions on the types of these ingredients There is no.

According to an embodiment of the present invention, the cosmetic composition of the present invention is in the form of a chestnut, and it is preferable that it is an all-in-one formulation that includes all the functions of an essence, an emulsion and a cream.

In the present invention, "chestnut form" refers to a cream having a certain hardness or higher at room temperature, which melts after being applied to the skin. Preferably, it has a hardness of 300 to 430 g/cm ² at 4°C, a hardness of 210 to 370 g/cm ² at 30°C, and has a hardness of 140 to 300 g/cm ^{2 at high temperature (45° C.)} .

The cosmetic composition according to the present invention has excellent skin temperature reduction effect, and in particular, has excellent skin cooling lasting power.

Hereinafter, the present invention will be described in more detail through examples. These examples are only for describing the present invention in more detail, and that the scope of the present invention is not limited by these examples according to the gist of the present invention, to those of ordinary skill in the technical field to which the present invention pertains. It will be self-evident.

Example And Comparative example

The cosmetic compositions of Examples 1 to 3 and Comparative Examples 1 to 3 were prepared with the composition of Table 1 below. Specifically, glyceryl stearate, PEG-100 stearate, hydroxyethyl acrylate/sodium acryloyldimethyltaurate copolymer, hydroxystearic acid, dimethicone, etc. according to the contents of Table 1 were added to purified water. Emulsified.

division Raw material Example 1 Example 2 Example 3 Comparative Example 1 Comparative Example 2 Comparative Example 3 One Purified water 93.6 93.8 94.0 94.5 95.1 95.6 3 Glyceryl stearate 0.5 0.5 0.5 0.5 0.5 0.5 4 PEG-100 Stearate 0.5 0.5 0.5 0.5 0.5 0.5 5 Dimethicone 3.0 3.0 3.0 3.0 3.0 3.0 6 Hydroxyethylacrylate/sodiumacryloyldimethyltaurate copolymer 0.5 0.5 0.5 - 0.5 - 7 Hydroxy Stearic Acid 1.5 1.3 1.1 1.1 - - 8 antiseptic 0.4 0.4 0.4 0.4 0.4 0.4 Sum 100.00 100.00 100.00 100.00 100.00 100.00

Test example 1: skin safety evaluation

The skin safety test was conducted in accordance with the company's skin safety test standards.

For 15 healthy subjects without acute or chronic physical diseases including skin diseases, each test substance is treated at an appropriate concentration in the Finn Chamber and applied to the inner part of the upper arm to determine the degree of irritation after 24 hours.

The degree of irritation starts from 0.00 (no irritation) according to the formula for calculating the average skin reactivity in Equation 1 below, and the company judges 0.97 or less as suitable according to the test criteria specified in Table 2 for skin safety. Table 3 shows the skin stability results.

[Equation 1]

i = number of subjects 30 minutes after removal of the patch

j = number of subjects 24 hours after removal of the patch

k = number of subjects 48 hours after removal of the patch

Scorei,j,k = 30 minutes, 24 hours, and 48 hours after removal of the patch, the evaluation result is applied to the score expressed as a score according to the ICDRG criterion, both reactions of erythema and edema

Grade Average score No irritation 0.00 ~ 0.75 Unstimulated 0.76 ~1.50 Light stimulation 1.51 ~2.50 Heavy stimulation 2.51 ~4.00 Strong stimulation 4.01 ~

division Example 1 Example 2 Example 3 Comparative Example 1 Comparative Example 2 Comparative Example 3 result 0.12 0.14 0.00 0.10 0.14 0.05 No irritation No irritation No irritation No irritation No irritation No irritation fitness fitness fitness fitness fitness fitness

As can be seen from Table 3, the cosmetic composition according to the present invention prepared according to Examples 1 to 3 has little irritation and thus has excellent safety.

Test example 2: stability evaluation

Stability evaluation was performed on the cosmetic compositions of Examples and Comparative Examples. To evaluate the stability, 4°C, room temperature (25°C), 45°C, 50°C, Cycle (4°C/25°C/50°C) test was performed after cosmetic preparation, and the degree of separation of the formulation was observed after 1 month. The results are shown in Table 4.

division 4℃ 25℃ 45℃ 50℃ Cycle Example 1 ○ ○ ○ ○ ○ Example 2 ○ ○ ○ ○ ○ Example 3 ○ ○ ○ ○ ○ Comparative Example 1 ○ ○ X X X Comparative Example 2 ○ X X X X Comparative Example 3 X X X X X

* Judgment Criteria-○: Good, X: Separation

As can be seen from Table 4, the formulations prepared according to Examples 1 to 3 have excellent phase stability according to temperature, and hydroxyethyl acrylate/sodium acryloyldimethyltaurate copolymer and hydroxystearate It was confirmed that the formulations without any of the rick acid had unstable stability.

In addition, the cosmetic compositions prepared according to Examples 1 to 3 showed a stable chestnut formulation, but in the case of Comparative Examples 1 to 3, it was confirmed that the chestnut formulation was not implemented and the stability was not good with the naked eye.

Test example 3: room temperature and refrigeration Under conditions Hardness comparison

The hardness comparison test was performed after leaving the cosmetic compositions of Examples 1 to 3 and the cosmetic compositions of Comparative Examples 1 to 3 at a refrigeration temperature (4°C), a standard temperature (30°C) and high temperature (45°C) conditions for 2 hours, respectively. , Sun scientific co., Ltd. Using a Rheometer equipment of the Spinder 15 at room temperature was measured the hardness change of the cosmetic composition under the condition of 2 cm. The hardness (unit: g/cm ² ) for each temperature is shown in Table 2.

Temperature Example 1 Example 2 Example 3 Comparative Example 1 Comparative Example 2 Comparative Example 3 4℃ 430 380 300 180 70 20 30℃ 370 270 210 110 50 20 45℃ 300 220 140 70 40 10

As can be seen in Table 5, it was confirmed that the higher the concentration of hydroxystearic acid, the higher the hardness. In the case of the cosmetic compositions of Comparative Examples 1 to 3, it was difficult to judge the formulation in the form of a chestnut at the company's reference temperature (30°C), and in the case of Examples 1 and 2, it was determined that use may be inconvenient due to too high hardness. I did. The present inventor judged that the formulation of Example 3 is the most suitable formulation as a cosmetic.

Test example 4: Cooling feeling evaluation

The cooling feeling was evaluated for Example 3 and other formulations known to have excellent cooling feeling (Comparative Example 1). One side of the subject's face was photographed with an infrared camera immediately after cleansing, immediately after infrared irradiation after washing, immediately after application of cosmetics, and 1 minute and 30 seconds and 5 minutes after application of the cosmetics, and the skin temperature was measured. For comparison, purified water was applied to the other side of the subject's face instead of cosmetic. Changes in skin temperature of the subject's face were measured, and are shown in Table 6 and FIG. 2.

division Purified water Example 3 After cleansing 28.83℃ 28.61℃ Infrared 10 minutes irradiation after washing 32.76℃ 32.62℃ Immediately after applying cosmetic 31.00℃ 30.83℃ 1 minute 30 seconds 30.55℃ 27.78℃ 5 minutes 30.95℃ 28.10℃

In addition, on one side of the subject's face, immediately after face-wash, immediately after infrared irradiation, immediately after application of cosmetics, and at 1 minute 30 seconds, 5 minutes, 10 minutes, and 25 minutes after application of the cosmetic product, photographs were taken with an infrared camera, and the skin temperature was measured. I did. For comparison, a third-party formulation known to have excellent cooling sensation (Comparative Example 1) was applied to the other side of the subject's face. Changes in skin temperature of the subject's face were measured, and are shown in Table 7 and FIG. 3.

division Comparative Example 1 Example 3 After cleansing 29.94℃ 29.34℃ Infrared 10 minutes irradiation after washing 33.37℃ 33.15℃ Immediately after applying cosmetic 31.10℃ 30.99℃ 1 minute 30 seconds 30.12℃ 28.52℃ 5 minutes 30.84℃ 28.60℃ 10 minutes 31.27℃ 28.93℃ 25 minutes 31.96℃ 30.43℃

Referring to Tables 6 and 7 and FIGS. 2 and 3, the skin temperature increased after 10 minutes of infrared irradiation, but when Example 3 was applied, the skin temperature was significantly higher than when water or the formulation of Comparative Example 1 was applied. It can be seen that it is lowered. From this, it can be seen that the cooling feeling of the cosmetic composition prepared according to Example 3 is excellent.

Test Example 5: Skin temperature reduction effect

The formulation effective for cooling the skin in the form of a chestnut (reduced skin temperature) prepared in Example 3 and a formulation of another company known to have excellent cooling sensation (Comparative Example 1) were applied to the faces of the subjects and removed after 15 minutes. The subjects were female subjects in their 20s to 30s, and 15 subjects were tested.

After the test, the sensory test for the degree felt by the subjects was evaluated on a 5-point scale and averaged. However, when evaluating on a 5-point scale, it was evaluated as 5 points for high satisfaction and 1 point for low satisfaction, and the results are shown in Table 8.

division Example 1 Comparative Example 1 convenience 5.0 4.0 Moisturizing effect 4.7 4.5 Cooling feeling 4.8 4.2 Skin irritation 4.8 3.8 Holistic sign 4.9 3.9

Looking at Table 8, it was found that the cosmetic composition in the form of a balm of the present invention has an excellent skin cooling effect.

As described above, specific parts of the present invention have been described in detail, and it is clear that these specific techniques are only preferred embodiments, and the scope of the present invention is not limited thereto for those of ordinary skill in the art. Therefore, it will be said that the practical scope of the present invention is defined by the appended claims and their equivalents.

Claims (4)

A cosmetic composition for reducing skin temperature, including hydroxyethyl acrylate/sodium acryloyldimethyltaurate copolymer and hydroxystearic acid, in the form of a chestnut. The method of claim 1, wherein the cosmetic composition comprises 0.1 to 1.0% by weight of hydroxyethyl acrylate/sodium acryloyldimethyltaurate copolymer, and 0.5 to 1.5% by weight of hydroxystearic acid based on the total weight of the cosmetic composition. Cosmetic composition for reducing skin temperature, characterized in that. The cosmetic composition for reducing skin temperature according to claim 1, wherein the weight ratio of the hydroxyethyl acrylate/sodium acryloyldimethyltaurate copolymer and the hydroxystearic acid is 1:1 to 1:3. Composition. The method of claim 1, wherein the cosmetic composition has ^{a hardness of 300 to 430 g/cm 2} at 4° C., a hardness of 210 to 370 g/cm ² at 30° C., and 140 to 300 g at high temperature (45° C.) A cosmetic composition for reducing skin temperature, characterized in that it has a hardness of /cm ^2.

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