KR100864541B1 - Phase-change hydrogel composition and method for use of the same - Google Patents

Abstract

A phase-change type hydrogel composition is provided to inhibit contamination of hydrogel by heating it immediately when it is used, and suppress property change of cosmetic ingredients and maximize their effects by minimizing contacting them with water. A phase-change type hydrogel composition for wrinkle improvement, skin whitening, UV(ultraviolet) blocking, water supply, nutrient supply and skin elasticity improvement contains 0.1-3 wt.% of glucomannan; 0.1-25 wt.% of functional cosmetic ingredients, humectant or a mixture thereof which are added into the composition immediately before or after heating; 0.001-0.3 wt.% of antiseptic and a remaining amount of water, and optionally 0.1-4 wt.% of natural polymer material selected from carrageenan, gellan gum, locust bean gum, gelatin, agar, alginate, chitosan, collagen, hyaluronic acid, acacia gum, Arabic gum, starch, pullulan, galactomannan, guar gum, pluronic, algin, xanthan gum, pectin and cellulose, wherein the phase-change type hydrogel is liquid phase at room temperature and becomes gel phase by heating.

Description

Phase-change hydrogel composition and method for use thereof

The present invention relates to a phase change type hydrogel composition and a method of using the same, and more particularly, to a phase change type hydrogel composition which exists in a liquid state at room temperature but changes to a gel phase by heating stimulation, and a method of using the same. will be.

Hydrogel is a material with high water content that can contain 20 to 90% of water and occupies a unique position in the fields related to medicine, pharmaceuticals and their high water content properties. Recently, application fields such as wound dressings, contact lenses, drug delivery media, implants, and wastewater treatment agents are also diversifying.

It is in the cosmetics field to use a hydrogel, as could exert a moisturizing effect, but other various functional cosmetic ingredients to give skin feature, wrinkles improved by the addition of humectants, such as skin whitening, sun protection, nutrition, skin elasticity, Moisturizing Various effects such as can be delivered to the skin.

Commercially available hydrogel cosmetic products are manufactured through various processes such as crude liquid molding and processed packaging. However, due to the nature of the hydrogel containing high moisture, there is a concern of contamination by microorganisms, foreign substances, etc. in the course of the process, there is a risk of contamination by them, and increases the manufacturing cost through a number of processes. In addition, there are many functional cosmetic ingredients have a change in properties or poor functionality when exposed to moisture or heat applied during the process for a long time, there was a difficulty in expressing the efficacy of these functional cosmetic ingredients.

Accordingly, there is a need for a hydrogel composition that can solve this problem of hydrogel that may occur as it contains high moisture.

The present inventors have found that a hydrogel composition of a specific composition containing a glucomannan or a mixture of konjac mannan as a main component has a liquid form at room temperature but is changed into a gel phase by heating stimulation, and separately It is possible to prepare a gel-like molded body by applying only heating stimulus to the liquid composition when it is desired to use without undergoing a process that may be exposed to a contaminant such as the molding step of the preliminary step, and by adding a functional cosmetic ingredient before or after heating, In order to minimize the contact time with moisture and heat, the present invention has been completed by contemplating the maximum expression of a functional cosmetic ingredient.

It is an object of the present invention to provide a phase change hydrogel composition.

Another object of the present invention is to provide a method of using a phase change hydrogel composition.

In order to achieve this object, the present invention, 0.1 to 3% by weight of konjac mannan (Glucomannan), 0.1 to 25% by weight functional cosmetic ingredients, moisturizers or mixtures thereof to impart skin cosmetic function, 0.001 to 0.3% by weight preservatives and It includes water as a residual amount, wherein the functional cosmetic ingredient is one or two or more substances having skin cosmetic functions including wrinkle improvement, skin whitening, sun protection, hydration, nutrition, and skin elasticity, which are liquid at room temperature. It is characterized in that the phase-change hydrogel composition.

In addition, the present invention comprises the first step of preparing a liquid phase change type hydrogel composition; A second step of heating the composition to a temperature of 70 to 90 ° C; And a method of using a phase change type hydrogel composition comprising a third step of preparing the gel-like hydrogel molded body by putting the heated composition into a mold.

Hereinafter, the present invention will be described in more detail.

Hydrogel composition of the present invention is konjac mannan (Glucomannan); Functional cosmetic ingredients, humectants or mixtures thereof to impart skin cosmetic function; Preservatives and water as essential components.

As a gelling agent to form a gel in the composition of the present invention, konjac mannan is used. Konjac mannan has a very low viscosity when dissolved in a liquid, but has a property of forming an elastic and strong gel when forming a gel. Although the severity is severe, the composition of the present invention is not intended to be prepared and stored in a gel form in advance, but is intended to be used immediately after heating to make a gel form when used. This material should be added in an amount that allows the composition to maintain its liquid phase at room temperature and maintain its physical properties when the composition is not too slack and rigid when heated for use. In the present invention, when the konjac mannan is used in an amount of less than 0.1% by weight based on the total weight of the composition may cause a problem that the gel strength is weak or the gel is not formed, when used in an amount of more than 3% by weight Since the problem of poor adhesion or usability may occur, it is preferably used in an amount of 0.1 to 3% by weight. Konjac mannan in the present invention can be used alone without being mixed with other natural polymer materials as described above, it may be used in combination with other natural polymer materials other than konjac mannan. The natural polymer material is added to prevent the sagging of the konjac mannan, and if added too much, there is a problem in that the viscosity becomes high due to high spreadability and a hard gel may be formed, so the amount of addition should be appropriately controlled. . For example, Carrageenan, Gelangum, Locust Bean Gum (LBG), Gelatin, Agar, Alginate, Chitosan, Chitosan Derivatives, Collagen, Hyaluronic Acid, Acacia Gum, Arabian Gum, Starch, Pullulan, Galactomannan, Guar gum, Pluronic, Algin, Xanthan gum, Pectin or Cellulose Derivatives and the like can be used. One or a mixture of two or more of the natural polymer materials except konjac mannan may be further contained in an amount of 0.1 to 4% by weight. In addition, the natural polymer material is more preferably carrageenan, gellan gum or a mixture thereof. When the carrageenan is used in an amount of 0.1 to 3% by weight based on the total weight of the composition, and the gellan gum is used in an amount of 0.1 to 1% by weight, a phase change type hydrogel composition having better physical properties can be prepared.

On the other hand, the functional cosmetic ingredient for imparting the skin beauty functionality can be used without limitation as long as it has a material having a skin beauty function such as wrinkle improvement, skin whitening, UV protection, moisture supply, nutrition supply, skin elasticity. More specifically, the functional cosmetic ingredient, for example, collagen, retinol, retinyl palmitate, adenosine, peptide, coenzyme Q10, green tea, hydroquinone, vitamin C, vitamin C derivatives, arbutin, ceramide, α- Hydroxy acid, β-hydroxy acid, licorice extract, cucumber extract, vitamin A, vitamin E, vitamin E derivative, elastin, amino acid, aloe, azelaeic acid, beta carotene, centella extract, portuguese extract, lettuce extract, mulberry extract , Grape seed extract, tretinoin, titanium oxide, zinc oxide, iron oxide, magnesium oxide, magnesium silicate, kaolin, hyaluronic acid, beta glucan, proteoglucan, guava and chamomile selected from the group consisting of Mixtures and the like can be used. In addition, as a moisturizing agent, polyhydric alcohols such as 1,3-butylene glycol, glycerin, sorbitol, propylene glycol, polyethylene glycol, and the like may be used. Such functional cosmetic ingredients, moisturizers or mixtures thereof are insignificant when used in an amount of less than 0.1% by weight relative to the total weight of the composition, and when used in an amount of more than 25% by weight, solubility may be reduced. It is preferably used in an amount of 0.1 to 25% by weight.

The preservative may be used without limitation so long as it is a substance used for preservative purposes, for example, 1 selected from the group consisting of paraoxy aromatic acid esters, phenoxyethanol, imidazolidinyl urea, phenonib, and various natural preservatives. Species or two or more compounds may be used. If the preservative is used in an amount of less than 0.001% by weight based on the total weight of the hydrogel composition, there is a problem in that the gel composition cannot be preserved for a long time, and when used in an amount of more than 0.3% by weight, there is a problem that may be harmful to the human body. Therefore, it is preferably used in an amount of 0.001 to 0.3% by weight.

Water is a natural polymer used as the gelling agent as a main component of the hydrogel composition of the present invention; It is configured to account for the remainder except functional cosmetic ingredients, humectants or mixtures thereof and preservatives.

The hydrogel composition of the present invention may further comprise a conventional natural biological material in addition to the main component. Natural biomaterials that may be added include, for example, extracts from Angelica, Echochocho, Situary Mushroom, Pomegranate, Potatoes, Schisandra chinensis, Ganoderma lucidum, Astragalus, Aloe, Green tea, Ginseng, Moth Herb, Pine needles, Ginkgo leaf, Propolis, Mulberry leaf or Silkworm There is a substance.

They may further be included in an amount of 0.01 to 10% by weight relative to the total weight of the composition.

In addition, the hydrogel composition of the present invention may further comprise a conventional fragrance known to be effective in relieving fatigue.

The phase change type hydrogel composition maintains a liquid form at room temperature, but has a gel form by giving a heating stimulus. Therefore, the gel of desired shape can be formed immediately by heating a composition when it is going to use. Specifically, the first step of preparing a liquid phase change type hydrogel composition having the composition; A second step of heating the composition to a temperature of 70 to 90 ° C; And a third step of preparing a gel-like hydrogel molded body until the gel is formed by putting the heated composition into a mold, thereby forming a gel having a desired shape. In the second step, the composition may be sealed by using a pouch or the like, and heated by irradiating microwaves by a microwave oven or by immersing in boiling water. Usually, a microwave oven is enough to heat it for 1 to 2 minutes, and if it is heated in boiling water it is enough to heat it for 3 to 5 minutes. For example, in the case of a composition for use for a mask, because of its high content, it is heated for about 1 minute to 2 minutes, and in the case of a composition for using a small amount such as for eye patch, it is heated within several tens of seconds. During the period before the second step after the first step or before the third step after the second step, a functional cosmetic ingredient for imparting skin cosmetic function to the composition may be further added and mixed. By adding at this time, the functional cosmetic ingredient can be exposed to moisture to a minimum, so that the properties are not changed or the functionality is degraded, and the skin delivery effect can be enhanced. As the functional cosmetic ingredient, as well as a substance that is not vulnerable to moisture, a certain functional effect is good but is vulnerable to moisture, so that the shelf life is very short or functional materials that could not be used for cosmetics can be used without limitation. For example, one or a mixture of two or more selected from the group consisting of vitamin C, vitamin C derivatives, coenzyme cue 10, retinol, retinyl palmitate, adenosine, arbutin, vitamin E and vitamin E derivatives may be added. . This functional cosmetic ingredient is difficult to exert its efficacy when used in too small amounts, 0.1 to 10 with respect to 100 parts by weight of the hydrogel composition because it is not easy to mix with the composition or interfere with the formation of the hydrogel when used in excessive amounts Preference is given to using in parts by weight. On the other hand, the temperature for forming the gel in the third step may be a refrigeration temperature as well as room temperature, the molding die may have a variety of shapes without limitation as long as it has a shape of the area to be applied, such as face, eyes, nose. The molded article produced according to this method has a constant thickness and a smooth surface that is not rough.

By attaching the molded body to the part of the body to be applied such as face, eyes, nose, etc., and maintaining the state for about 5 to 10 minutes, the cold air of the gel can be transmitted to reduce fatigue, swelling, etc. of the applied site, Moisturizing and functional cosmetic ingredients can be delivered to the application site.

Hereinafter, the first embodiment of the phase change type hydrogel composition will be described, and then the present invention will be described in detail with reference to the preparation examples for using the phase change type hydrogel composition, but the present invention is not limited thereto.

<Examples 1-8 and Comparative Examples 1-4> Liquid Hydrogel Compositions

Natural polymer material containing konjac mannan in purified water at room temperature; A functional hydrogel composition was prepared by adding a functional cosmetic ingredient, a moisturizer or a mixture thereof, and a preservative to impart skin cosmetic function, followed by stirring for 30 minutes. Each component was added according to the composition of Table 1 below.

ingredient Example (Unit: wt%) Comparative Example (Unit: Weight%) One 2 3 4 5 6 One 2 Konjac met 2.0 0.6 0.6 0.7 0.8 0.7 3.5 0.7 Carrageenan - 0.7 0.8 0.7 0.7 - - - Gellan gum - - - - - 0.5 - 1.5 Collagen 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 Machi Prefecture Extract 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 Hyaluronic acid 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 glycerin 15 15 15 15 15 15 15 15 1,3-butylene glycol 5 5 5 5 5 5 5 5 Methyl paraoxybenzoate 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 Paraoxybenzoic acid propyl 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 Twin 80 Quantity Quantity Quantity Quantity Quantity Quantity Quantity Quantity Spices Quantity Quantity Quantity Quantity Quantity Quantity Quantity Quantity Purified water Remaining amount Remaining amount Remaining amount Remaining amount Remaining amount Remaining amount Remaining amount Remaining amount

ingredient Example (Unit: wt%) Comparative Example (Unit: Weight%) 7 8 3 4 Konjac met 0.7 0.6 3.5 0.7 Carrageenan 0.7 0.7 0.7 0.7 Gellan gum 0.2 0.2 0.2 1.5 Collagen 0.1 0.1 0.1 0.1 Machi Prefecture Extract 0.1 0.1 0.1 0.1 Hyaluronic acid 0.1 0.1 0.1 0.1 glycerin 15 15 15 15 1,3-butylene glycol 5 5 5 5 Methyl paraoxybenzoate 0.1 0.1 0.1 0.1 Paraoxybenzoic acid propyl 0.05 0.05 0.05 0.05 Twin 80 Quantity Quantity Quantity Quantity Spices Quantity Quantity Quantity Quantity Purified water Remaining amount Remaining amount Remaining amount Remaining amount

Production Examples 1 to 8 and Comparative Production Examples 1 to 4 Preparation of Molded Products Using Liquid Hydrogel

First, the liquid hydrogel compositions prepared in Examples 1 to 8 and Comparative Examples 1 to 4 were pouch-packed in an 80 ml capacity according to a conventional method. Each of the pouch packaged compositions of Examples 1-8 and Comparative Examples 1-4 were heated for 90 seconds using a microwave oven. The temperature of the composition after the heating was measured and found to be about 80 ° C. Then, the composition was poured into a mold for shaping the face and left at room temperature until it became gel. It took about 3 minutes to gel.

Production Examples 9 to 16 and Comparative Production Examples 5 to 8 Preparation of a Gel-like Hydrogel Molded Body

First, the liquid hydrogel compositions prepared in Examples 1 to 8 and Comparative Examples 1 to 4 were pouch-packed in a 20 ml capacity according to a conventional method. Each of the compositions of pouch-packed Examples 1-8 and Comparative Examples 1-4 was placed in boiling water and left for 3 minutes. After standing, the temperature of the composition was measured and found to be approximately 75 ° C. Then, the composition was poured into an ipad-shaped mold and left to stand at room temperature until gelled. It took about 1 minute to gel.

Test Example 1 Viscosity Measurement of Hydrogel Composition

When the temperature of manufacture examples 1-16 and comparative manufacture examples 1-8 was 75 degreeC, each viscosity was measured in accordance with a conventional method. As a result, in the case of Production Examples 1 to 16, it was confirmed that the value belongs to 800 ~ 3,000 cps which is a range suitable for use as a cosmetic mask or the like by showing a value of about 2,000 cps. By maintaining such a viscosity, when the composition is poured into a mold, it is possible to produce a molded article having good spreadability and having a constant thickness and a smooth surface. On the other hand, in Comparative Examples 1 to 8, it was confirmed that the viscosity is a value of 3,000 cps or more and the spreadability is good and a hard gel is formed.

As can be seen from the above, the phase change type hydrogel composition according to the present invention is simply provided by heating stimulation to the liquid composition when you want to use at home without going through a process that may be exposed to a source such as a separate molding step in advance The molded body can be manufactured, and it can contain a desired component by simple operation of selecting and adding a functional cosmetic ingredient directly by the consumer before or after heating, and can minimize the contact time between the functional cosmetic ingredient and moisture and heat. It can maximize the efficacy without changing the nature of the cosmetic ingredients.

Claims (11)

0.1-3% by weight of glucomannan; 0.1 to 25% by weight of a functional cosmetic ingredient, moisturizer or mixture thereof to impart skin cosmetic function; 0.001 to 0.3% by weight of a preservative and water as a balance, The functional cosmetic ingredient is a liquid phase change type hydrogel at room temperature, characterized in that one or two or more substances having skin cosmetic functions including wrinkle improvement, skin whitening, UV protection, moisture supply, nutrition supply and skin elasticity. Composition. According to claim 1, Carrageenan, Gelangum, Locust Bean Gum (LBG), Gelatin, Agar, Alginate, Chitosan, Collagen, Hyaluronic Acid, Acacia Gum, Arabian Gum Consisting of starch, pullulan, galactomannan, guar gum, pluronic, algin, xanthan gum, pectin and cellulose Phase change type hydrogel composition, characterized in that it further comprises one or two or more natural polymer materials in an amount of 0.1 to 4% by weight. The phase change type hydrogel composition of claim 2, wherein the natural polymer is carrageenan, gellan gum, or a mixture thereof. The functional cosmetic ingredient of claim 1, wherein the functional cosmetic ingredient is collagen, retinol, retinyl palmitate, adenosine, peptide, coenzyme Q10, green tea, hydroquinone, vitamin C, arbutin, ceramide, α-hydroxy acid, β-hydroxy acid , Licorice Extract, Cucumber Extract, Vitamin A, Vitamin E, Elastin, Amino Acid, Aloe, Azelic Acid, Beta Carotene, Centella Extract, March Extract, Morus Extract, Methanol Extract, Grape Seed Extract, Tretinoin, Titanium Dioxide, Zinc Oxide Phase change type hydrogel composition, characterized in that one or two or more selected from the group consisting of iron oxide, magnesium oxide, magnesium silicate, kaolin, hyaluronic acid, beta glucan, proteoglucan, guava and chamomile. The phase change type hydrogel composition according to claim 1, wherein the moisturizing agent is one or two or more polyhydric alcohols selected from the group consisting of 1,3-butylene glycol, glycerin, sorbitol, propylene glycol, and polyethylene glycol. The phase change type hydrogel composition according to claim 1, wherein the preservative is one or two or more compounds selected from the group consisting of paraoxy aromatic acid esters, phenoxyethanol, imidazolidinyl urea, and phenonib. Claim 1, at least one natural biological material extracted from Angelica, Echoseong, situation mushroom, pomegranate, potato, Schisandra chinensis, Ganoderma lucidum, Astragalus, Aloe, green tea, ginseng, tree vinegar, pine needles, ginkgo biloba, propolis, mulberry leaf or silkworm Phase change type hydrogel composition, characterized in that it further comprises in an amount of 0.01 to 10% by weight. A first step of preparing a liquid phase change hydrogel composition of claim 1; A second step of heating the composition to a temperature of 70 to 90 ° C; And a third step of preparing the gel-like hydrogel molded body by putting the heated composition into a mold. The method of claim 8, wherein in the second step, the composition is sealed and heated by irradiating microwaves or dipping in boiling water. The method of claim 8, wherein after the first step before the second step or after the second step before the third step after the second step of the functional cosmetic ingredients for imparting a skin cosmetic function to the composition is further added and mixed Method of using a phase change hydrogel composition. 11. The method of claim 10, wherein the functional cosmetic ingredient is vitamin C, coenzyme Q10, retinol, retinyl palmitate, adenosine, arbutin and vitamin E, one or two or more mixtures selected from the group consisting of vitamin E, characterized in that Method of Using Gel Composition.