KR101677257B1 - Cosmetic composition for external application containing micro-capsulized phase conversion material - Google Patents

Abstract

The present invention provides a cosmetic composition for external use comprising a microencapsulated phase transition material, which exhibits an effect of providing a cooling sensation and coolness to the skin by using endothermic reaction due to phase transition or sustaining a thermal sensation by using heat, thereby providing cooling and heating effects.

Cosmetic composition for external skin, phase transition material, cooling effect, heating effect, microcapsule

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cosmetic composition for external application containing microcapsuled phase conversion material,

The present invention relates to an external skin cosmetic composition comprising a microencapsulated phase transition material.

Cosmetics for external use are usually intended to remove dirt from the skin, to effectively supply moisture and cosmetic ingredients to the skin, and to restore the skin's physiological functions. In order to more efficiently achieve the basic purpose of such a cosmetic product, convenience of using the product using the reology, improving the feeling of use, or providing a heating effect or a cooling effect, .

In the case of conventional body slimming products and relaxing products, the present invention provides a cooling sensation and a cool feeling by increasing the blood flow volume of the skin including synthetic menthol, xylitol or its derivatives, or plant extracts such as peppermint containing these components. Examples of the compound having a cooling effect include 1-menthol 3-substituted p-menthane, N-substituted p-menthane-3-carboxamide, 1-mentylglucoside, 3- 3-hydroxybutyrate, 1-alkoxy-3- (1-menthoxy) propan-2-ol, 3-hydroxymethyl-p- menthane, N-acetyl (-) - isopulegol, (2S) -3 - {(1R, 2S, 5R) - [5-methyl- 2- (1- methylethyl) cyclohexyl] 2-propanediol, and 2-hydroxymethylmenthol have been proposed. However, the above-mentioned substances have a slight cooling effect, but the cooling effect is insufficient and unsatisfactory in terms of sustainability.

Conventionally, cosmetics such as hot packs provide a heating effect by heat of hydration by reaction with water such as polyol or calcium chloride.

However, when these methods are used, there is a limit to the amount of the composition to be used because it affects the physical properties of the composition and irritates the skin or eyeball, and the effect thereof is very temporary.

In order to provide a cosmetic composition for external use on the skin that exhibits a cooling effect and a heating effect with a completely different mechanism of action from the existing ones, it provides a refreshing feeling and coolness to the skin by utilizing an endothermic phenomenon occurring in a process of changing from a solid state to a liquid state, The present invention provides a cosmetic composition which imparts a sustained feeling of warmth to the skin by using a fever phenomenon occurring in a process of changing from a solid state to a solid state.

The present invention provides a cosmetic composition for external use comprising microcapsules in which a phase transition material having a melting point of 15 캜 to 45 캜 is collected.

The cosmetic composition for external use for skin prepared according to one embodiment of the present invention utilizes heat generated in a process of changing from a solid state to a liquid state and an exothermic phenomenon occurring in a process of changing from a liquid to a solid state, A new mechanism of action can provide a noticeable and lasting cooling sensation and warmth to the skin.

Hereinafter, the present invention will be described in detail.

The present invention relates to a cosmetic composition for external use that microencapsulates a phase transition material having a melting point within a range of 15 to 45 占 폚 and applies the cosmetic composition to the skin, To a cosmetic composition for external use that continuously provides a feeling of coolness or warmth.

The inventors of the present invention conducted various studies on a cosmetic composition for external use for skin which provides a refreshing sensation or a thermal sensation to the skin and has excellent durability of the effect. Microencapsulating the phase-inversion substance to prepare various external skin such as skin, lotion, cream, hot pack, As a result of applying cosmetics to the extent that they do not affect the basic functions of each, they have found that they provide differentiated cooling and heating effects compared to conventional products.

When the body temperature is increased due to the movement of the human body after the cosmetic composition for external use applying the microcapsules containing the phase change material according to an embodiment of the present invention is applied to the skin, heat is transferred into the capsule, To the liquid state, and at this time, the ambient heat can be absorbed to provide a refreshing feeling and coolness. In the case of the hot pack including the skin cosmetic composition according to an embodiment of the present invention, when the hot pack loses its function while being cooled, the phase transition material may transition from a liquid state to a solid state to release heat to sustain the thermal sensation.

The cosmetic composition for external use according to an embodiment of the present invention may be applied to skin, toners, lotions, essences, serums, creams, hot packs for skin soothing and skin texture protection, hydrogel masks, And may be coated with a phase transition material microcapsule in a nonwoven fabric, which is a support of a hydrogel mask or a silicone gel mask. The composition and physical properties of these cosmetic formulations, and the manufacturing method thereof are in accordance with known facts commonly used in the art.

Examples of the phase transition material used in the cosmetic composition according to an embodiment of the present invention include n-octacosane, n-heptacosane, n-hexacosane, n N-pentacosane, n-tetracosane, n-tricosane, n-docosane, heneicosane, n- N-nonadecane, n-octadecane, n-heptadecane, hexadecane, n-pentadecane, n-hexadecane, n-tetradecane, n-tridecane, and derivatives or complexes thereof may be used alone or in combination. Stearic acid and the like exist in the phase transition material at 45 to 70 ° C.

In the cosmetic composition for external use according to an embodiment of the present invention, the content of the microcapsule composition trapping the phase transition material may be 0.1% by weight to 30% by weight based on the total amount of the cosmetic composition. When the content of the microcapsule is more than 30% by weight, it affects the stabilization of the cosmetic formulations, and the skin feeling on the skin becomes severe after use. When the content is less than 0.1% by weight, the content is insufficient, there is a problem.

In one embodiment of the present invention, the phase change material may be included in an amount of 5% by weight to 90% by weight based on the total amount of the microcapsule composition trapping the phase change material. When the content of the phase transition material is less than 5% by weight based on the total amount of the capsule composition, the content thereof is insignificant and does not show a refreshing feeling and coolness. If the content of the phase transition material exceeds 90% by weight, the content of the phase transition material is deteriorated, It can not be displayed.

In the cosmetic composition for external use for skin according to an embodiment of the present invention, the capsule thin film-forming material used for microencapsulating the phase change material is selected from the group consisting of alginic acid derivatives, gelatin, chitosan, melanin, carrageenan, gum arabic, carboxymethylcellulose, Cellulose, methylcellulose, polyamide, carboxyvinyl polymer, methacrylic acid polymer, polyvinyl alcohol, collagen and soybean protein may be used alone or in combination.

In one embodiment of the present invention, the capsule thin film forming material may be included in an amount of 5% by weight to 90% by weight based on the total amount of the microcapsule composition. When the content of the capsule thin film forming material is less than 5% by weight, the thickness and strength of the capsule are not sufficiently formed, so that the captured phase transition material can be eluted. When the content of the capsule thin film forming material is more than 90% by weight, There arises a problem that the cooling feeling and coolness can not be exhibited as the heat transfer rate becomes very late.

In one embodiment of the present invention, the average particle size of the microcapsules may be a particle size distribution of 0.0001 μm to 50 μm. If the particle size exceeds 50 탆, it may cause a feeling of foreign body during coating or secondary processing on the nonwoven fabric. The particle size of the microcapsule is advantageously small, and particles having a diameter of 0.0001 탆 or more are preferred, but the present invention is not limited thereto.

In one embodiment of the present invention, a nucleating agent component may be further included to prevent overcooling of the phase change material. As the nucleating agent component, 1-octacanol, 1-heptacosanol, 1-heptadecanol, 1-nonadecanol and 1-octadecanol can be used alone or in combination. The crude nucleating agent component may be contained in an amount of 0.01 wt% to 5 wt% based on the total amount of the phase transition material. When the content of the crude nucleating agent is less than 0.01 wt% based on the total amount of the phase transition material, the supercooling phenomenon can not be effectively prevented. When the content of the nucleating agent is 5 wt% or more, the phase transition temperature is not changed or appears due to the nucleating agent.

As the cosmetic composition for external use for skin according to an embodiment of the present invention, the hydrogel mask formulation may be coated with a microcapsule of a phase transition material in a nonwoven fabric supporting the mask. A hydrogel mask using a nonwoven fabric coated with a phase change material capsule as a support can be produced by the following method.

1) Using neutralizing agent, neutralized polyacrylic acid and agar polymer are dissolved in water Mixing and heating to 100 DEG C, boiling and stirring;

2) cooling the 1) to 70 ° C and adding an oil component as a softener;

3) blending and dispersing the microcapsules of the active ingredient and the phase transition material in 2) above at 50 ° C or lower;

4) flowing the materials formulated in 3) above on the coater in an extrusion manner to load the phase change material capsules onto the coated nonwoven fabric (support);

5) when the compounding materials are loaded in step 4), drying the mixture through a chamber to produce a hydrogel; And

6) aging the hydrogel formed in 5) at 40 ° C for 2 to 3 days, and then cutting to prepare a hydrogel mask pack

In one embodiment of the present invention, the emulsion method can be used as a method of collecting the phase transition material in microcapsules. Polymethacrylate (PMMA), polyurethane, silicone resin and the like can be sprayed and collected as a coating agent capable of forming an emulsion by using a commonly used oxidation initiator, a reducing agent, a catalyst and a surfactant, and collecting the emulsion.

In one embodiment of the present invention, the nonwoven fabric coated with the phase change material microcapsule is prepared by mixing the phase change material microcapsules with each other using an adhesive medium such as water-soluble polyurethane to prepare a composition, ≪ / RTI > and drying to evaporate the solvent.

In one embodiment of the present invention, the efficacious ingredient is a wrinkle-improving ingredient selected from the group consisting of retinol, retinyl palmitate, adenosine, polyethoxystelretinamide; Albumin, mulberry extract, licorice, ethyl ascorbic acid, ascorbyl glucoside, and magnesium ascorbyl phosphate; A moisturizing component selected from the group consisting of skimmed mushroom polysaccharide, niacinamide, and N-acetylglucosamine; Ivory extract, chrysanthemum extract, fancy extract, chamomile, jujube extract, and the like.

In one embodiment of the present invention, adenosine, which is a raw material for the effective ingredient, may be contained in an amount of 0.001 to 0.04% by weight based on the total weight of the cosmetic composition. Since 0.04% is determined by the KFDA's wrinkle notification content, . Retinol, retinyl palmitate, polyethoxylated retinamide and the like, which are raw materials for the wrinkle remedy, can also be formulated into stabilized forms such as liposomes within the range of the final limit content, and the formulation can be contained in the crosslinked hydrogel or silicone gel .

Among the active ingredients, arbutin, which is a raw material for whitening, is 0.01% to 2.0% by weight, marten extract is 0.01% to 0.3%, licorice extract is 0.01 to 0.05%, ethyl ascorbic is 0.01 to 2.0%, ascorbyl glucoside May be contained in an amount of 0.01 to 2.0% by weight, and magnesium ascorbyl phosphate may be contained in an amount of 0.01 to 3.0% by weight. The above components can be prepared in a water-soluble liquid or water-dispersible form within the whitening controlled range and can be contained in the crosslinked hydrogel after the preparation. Licorice may be impregnated in a dispersion stabilized form by a separate process.

Among the active ingredients, 0.01 to 5.0 wt.% Of chrysanthemum polysaccharide, 0.01 to 5.0 wt.% Of niacinamide, 0.01 to 5.0 wt.% Of N-acetylglucosamine, 0.01 to 5.0 wt.% Of jujube extract , 0.01 to 5.0% by weight of the extract, 0.01 to 5.0% by weight of the fancy extract, and 0.01 to 5.0% by weight of the extract. If the content is less than 0.01% by weight, the effect is insignificant. If the content is more than 5.0% by weight, it is difficult to disperse in the aqueous phase and the phenomenon such as precipitation may occur.

Hereinafter, the present invention will be described in more detail with reference to the following examples. However, it should be understood that the present invention is not limited to the following examples.

[Example 1]

The agar aqueous solution was boiled at a temperature of 100 캜 and stirred. After the agar solution was cooled to 50 캜, the components were mixed and stirred as described above according to the intended use. The nonwoven fabric coated with the phase change material capsules prepared according to the above-mentioned method was prepared in the form of a roll, the roll was passed through a chamber to be transported in a predetermined direction, and the aqueous agar solution in which the efficacious component was blended was flowed. The nonwoven fabric coated with the aqueous agar solution was coated using a variable comma coater (Japan IKEDA) and then cooled to room temperature to dry the hydrogel mask of Example 1.

[Example 2]

(N-octadecane: melting point 28 - 30 ° C) microcapsules were added to the aqueous solution of the compounding agent prepared in Example 1 in an amount of 5% by weight based on the total weight of the composition, A hydrogel mask of Example 2 was prepared.

[Example 3]

(N-octadecane) microcapsule was added to the aqueous solution of the compounding agent prepared in Example 1 at a concentration of 10% by weight based on the total weight of the composition. Thereafter, the hydrogel mask of Example 3 .

[Comparative Example 1]

In the method of Example 1, a hydrogel mask of Comparative Example 1 was prepared using a face nonwoven fabric instead of using a nonwoven fabric coated with a phase change material capsule.

[Comparative Example 2]

In the method of Example 2, 5% by weight of phase change material (n-octadecane) microcapsules was added, and 5% by weight of menthol, which is a conventional cooling agent, A hydrogel mask of Example 2 was prepared.

[Comparative Example 3]

In the method of Example 3, 10 wt% of the phase change material (n-octadecane) microcapsules was replaced by 10 wt% of menthol, which is a conventional cooling agent, A hydrogel mask of Example 3 was prepared.

The compositional components of Examples 1, 2, and 3 and Comparative Examples 1, 2, and 3 are shown in Table 1, and the unit is% by weight.

[Example 4-5, Comparative Example 4]

Examples of the external skin cosmetic composition having a cream formulation as a type to be applied after being applied to the skin are shown in Table 2 below, and the unit is expressed as% by weight.

ingredient Example 4
(weight%) Example 5
Comparative Example 4
Purified water To 100 To 100 To 100 Herbal Extract 0.1 0.1 0.1 Vegetable hydrogenated oil 1.50 1.50 1.50 Glycerol stearate 0.60 0.60 0.60 Cetearyl alcohol 2.00 2.00 2.00 Polyglyceryl-10pentastearate & behenyl alcohol & sodium 1.00 1.00 1.00 Arachidyl behenyl alcohol 1.00 1.00 1.00 Cetylaryl Alcohol and Cetearyl Glucoside 2.00 2.00 2.00 PEG-100 Stearate & Glycerololate &
Propylene glycol 1.50 1.50 1.50 Caprylic / Carrick Triglyceride 11.00 11.00 11.00 Cyclomedicone 6.00 6.00 6.00 Preservative, incense Suitable amount Suitable amount Suitable amount Trimethanolamine 0.10 0.10 0.10 n-octadecane /
Gelatin phase transition microcapsules 10 5 0

The strength of the cooling effect and the persistence of the cooling effect of the external cosmetic composition prepared according to the above Examples and Comparative Examples were tested in the same manner as in Test Examples 1 and 2 by dividing the product into use and after use.

[Test Example 1] Cooling effect strength test

After using the above Examples 1-5 and Comparative Examples 1-4 three times for 10 persons, skin feeling and feeling of coolness felt while using the product were measured on a 5-point scale, 5 points: very strong, 4 The results are shown in Table 3. The results are shown in Table 3. The results are shown in Table 3. The results are shown in Table 3 below.

[Test Example 2] Cooling effect persistency test after use of the product

The results are shown in Table 1. The results are shown in Table 1. The results are shown in Table 1. The results are shown in Table 1. The results are shown in Table 1. [ Very well maintained, 4 points: Slightly maintained, 3 points: Average, 2 points: Slightly poorly maintained, 1 point: Very poorly maintained, The results are shown in Table 3.

[Test Example 3] Heat effect persistence test after use of the product

After 10 minutes at 20 ° C in a constant temperature and humidity chamber at 40 ° C and 70% humidity, the degree of sustained skin heat sensation at room temperature (22 ° C) was 5 points Scale: 5 points: Very well maintained, 4 points: Slightly maintained, 3 points: Average, 2 points: Slightly poorly maintained, 1 point: Very poorly maintained, The results are shown in Table 3 as a result of the persistence test of the thermal effect after use.

Strength of cooling effect when using product Continuous cooling effect after use Continuity of thermal effects after use Example 1 3.1 3.2 3.7 Example 2 3.6 3.6 - Example 3 4.1 4.2 - Example 4 3.8 3.9 3.6 Example 5 3.7 3.0 - Comparative Example 1 2.3 1.0 1.5 Comparative Example 2 3.2 1.5 - Comparative Example 3 3.3 2.0 - Comparative Example 4 3.0 1.1 1.3

As a result of the above test results, it can be seen that menthol used in the past has a refreshing sensation at the time of use, but the sensation of continuation of the sensation of refreshing sensation is remarkably deteriorated as the body temperature increases after giving a momentary sensation of cooling sensation. On the contrary, when the phase transition material microcapsule was applied, the refreshing feeling at the time of the initial use was also excellent, and the refreshing feeling lasting time was about twice as long as that of menthol. Also, the persistence of the heat was about twice as long as that of the phase transition material microcapsule.

Claims (13)

A cosmetic composition for external use comprising a microcapsule in which a phase transition material having a melting point of 15 캜 to 45 캜 is collected, Wherein the composition is a hydrogel mask or a silicone gel mask formulation containing a microcapsule-coated nonwoven fabric capturing a phase transition material. The method of claim 1, wherein the phase change material is selected from the group consisting of n-octacosane, n-heptacosane, n-hexacosane, n-pentacosane, n-tetracosane, n-tricosane, n-docosane, n-heneicosane, n-eicosane, n- N-nonadecane, n-octadecane, n-heptadecane, hexadecane, n-pentadecane, n-tetradecane, ), n-tridecane, and a complex thereof. < / RTI > The cosmetic composition for external use according to claim 1, wherein the microcapsules capturing the phase change material are 0.1% by weight to 30% by weight based on the total weight of the cosmetic composition. The cosmetic composition for external use according to claim 1, wherein the phase change material is 5% by weight to 90% by weight based on the total weight of the microcapsules in which the phase transition material is collected. The capsule according to claim 1, wherein the capsule film of the microcapsule is at least one selected from the group consisting of gelatin, chitosan, melanin, carrageenan, gum arabic, carboxymethylcellulose, hydroxyethylcellulose, methylcellulose, polyamide, carboxyvinyl polymer, methacrylic acid polymer, Collagen, and soy protein. ≪ RTI ID = 0.0 > 11. < / RTI > [6] The cosmetic composition for external use according to claim 5, wherein the material constituting the capsule thin film is 5% by weight to 90% by weight based on the total weight of the microcapsules in which the phase transition material is collected. The cosmetic composition for external use according to claim 1, wherein the cosmetic composition further comprises a nucleating agent component. The method of claim 7, wherein the nucleating agent component is at least one substance selected from the group consisting of 1-octacanol, 1-heptacosanol, 1-heptadecanol, 1-nonadecanol and 1-octadecanol Skin cosmetic composition. The cosmetic composition for external use according to claim 7, wherein the crude nucleating agent component is 0.01% by weight to 5% by weight based on the total weight of the phase transition material. The cosmetic composition for external use according to claim 1, wherein the cosmetic composition provides a refreshing sensation or a thermal sensation to the skin by utilizing endothermic or exothermic heat generated upon phase transition of the phase change material. delete delete The cosmetic composition for external use according to claim 1, wherein the microcapsules have a particle size distribution of 0.0001 to 50 mu m.