Self-contractible skin stimulation patch

Abstract

The present invention relates to a skin-stimulating patch capable of autonomously contracting, and more particularly, to a skin-stimulating patch comprising a contractile material and a trigger material. According to one embodiment of the present invention, it is possible to provide a patch for skin stimulation, which is a patch capable of stimulating skin, and which comprises: a contractile material that can contract under a preset condition; and the triggering material is used for applying preset energy to the contractile material so that the condition can be met.

Description

Technical Field

[0001] The present invention relates to a patch for skin stimulation that can autonomously contract, and more particularly, to a patch for skin stimulation including a contractile material and a trigger material. Background Art

[0002] Recently, as the attention to beauty has been increasing rapidly, cosmetics in a form that can physically stimulate the skin are being developed. In particular, patches of cosmetics that apply stimulation to the skin using physical contraction force to provide skin improvement effects have attracted much attention.

[0003] In the past, in order to generate physical contraction, an external device capable of causing contraction or an energy source capable of supplying the energy required during contraction was required. However, in such a conventional method, since an external device or an energy source needs to be prepared, there are problems of reducing the accessibility of customers to purchase products and the convenience of use.

[0004] To solve such problems, it is possible to consider a method of pre-memorizing or recording extension in the patch so that contraction can occur at a desired time without additional external devices or energy sources. However, in this case, the contraction of the patch is only completed in the direction of the recorded extension, so there may be problems of difficulty in controlling the contraction direction and degree. In addition, since the process includes an extension process, the process is very complicated and the manufacturing cost may increase significantly.

[0005]

Prior Art Documents

[0006]

Patent Documents

[0007] (Patent Document 1) Republic of Korea Patent No. 10-1922230 Summary of the Invention

[0008] Technical Problem

[0009] The patch for skin stimulation that can autonomously contract according to an embodiment of the present invention is proposed to solve the above problems, and the present invention aims to provide a patch for skin stimulation that can control the contraction direction and degree.

[0010] In addition, the present invention aims to provide a patch for skin stimulation that allows a user to contract the patch at a desired time.

[0011] In addition, the present invention aims to provide a patch for skin stimulation with a simple manufacturing process and low manufacturing cost.

[0012] Technical Solution

[0013] According to an embodiment, a skin-stimulating patch can be provided. As a patch capable of stimulating the skin, it includes: a contractile material that can contract under preset conditions; and a triggering material that applies preset energy to the contractile material to reach the conditions.

[0014] In addition, a skin-stimulating patch can be provided, wherein the preset energy is thermal energy.

[0015] In addition, a skin-stimulating patch can be provided, wherein the patch is a hydrogel patch.

[0016] In addition, a skin-stimulating patch can be provided, wherein the contractile material is polyisopropylacrylamide (Poly(N-isopropylacrylamide); PNIPAam).

[0017] In addition, a skin-stimulating patch can be provided, wherein the triggering material is a water-sensitive self-heating material.

[0018] In addition, a skin-stimulating patch can be provided, wherein the triggering material includes zeolite.

[0019] In addition, a skin-stimulating patch can be provided, wherein the triggering material further includes polyol.

[0020] In addition, a skin-stimulating patch can be provided, wherein the patch includes: one or more holes formed in the area in contact with the skin.

[0021] In addition, a skin-stimulating patch can be provided, wherein the holes are formed as circles with a diameter 1 to 5 times the average pore size, there are multiple holes, and the spacing between any two adjacent holes among the multiple holes is formed to be 3 to 5 times the diameter of the holes.

[0022] According to an embodiment, a skin-stimulating patch can be provided, which includes: a contractile patch including a contractile material that can contract under preset conditions; and a heating patch including a triggering material that applies thermal energy to the contractile material to reach the conditions. The contractile patch and the heating patch are provided separately before use and are used in combination with each other during use.

[0023] In addition, a skin-stimulating patch can be provided, wherein the contractile material is polyisopropylacrylamide (Poly(N-isopropylacrylamide); PNIPAam).

[0024] In addition, a patch for skin irritation can be provided, wherein the triggering material is a water-sensitive self-heating material.

[0025] In addition, a patch for skin irritation can be provided, wherein the triggering material includes zeolite.

[0026] In addition, a patch for skin irritation can be provided, wherein the triggering material further includes polyol.

[0027] According to an embodiment, a patch for skin irritation can be provided, which includes: a first layer including a contractile material capable of contracting under preset conditions; and a second layer provided on one or both sides of the first layer, including a triggering material for applying preset energy to reach the conditions.

[0028] In addition, a patch for skin irritation can be provided, wherein the preset energy is thermal energy.

[0029] In addition, a patch for skin irritation can be provided, wherein the contractile material is polyisopropylacrylamide (poly(N-isopropylacrylamide); PNIPAam).

[0030] In addition, a patch for skin irritation can be provided, wherein the triggering material is a water-sensitive self-heating material.

[0031] In addition, a patch for skin irritation can be provided, wherein the triggering material includes zeolite.

[0032] In addition, a patch for skin irritation can be provided, wherein the triggering material further includes polyol.

[0033] Advantages of the Invention

[0034] The self-contractable patch for skin irritation according to an embodiment of the present invention has the effect of being able to control the contraction direction and degree.

[0035] In addition, it has the advantage that the user can make the patch contract at the desired moment.

[0036] In addition, it has the effect of simple manufacturing process and can reduce the manufacturing cost. Description of the Drawings

[0037] Figure 1A is a top view of the patch for skin irritation according to the first embodiment of the present invention;

[0038] Figure 1B shows Figure 1ATop view of a modified example of a skin irritation patch;

[0039] Figure 2 Partial side sectional view of a skin irritation patch according to the first embodiment of the present invention;

[0040] Figure 3 Graph and table showing the heat generation reaction duration of the trigger material according to the first embodiment of the present invention;

[0041] Figure 4 Experimental example showing the degree of shrinkage of the skin irritation patch according to the first embodiment of the present invention over time;

[0042] Figure 5A Top view showing the shrinkage of an existing patch;

[0043] Figure 5B Top view showing the shrinkage of the patch according to the first embodiment of the present invention;

[0044] Figure 6A Partial side sectional view of a skin irritation patch according to the second embodiment of the present invention, showing the case where the shrinkage patch and the heating patch are provided separately before use;

[0045] Figure 6B Shows Figure 6A Diagram showing the case where the shrinkage patch and the heating patch are used in combination with each other during use;

[0046] Figure 7 Partial side sectional view of a skin irritation patch according to the third embodiment of the present invention;

[0047] Figure 8 Partial side sectional view of a modified example of a skin irritation patch according to the third embodiment of the present invention.

[0048] Explanation of reference numerals

[0049] 10: Patch

[0050] 100: Shrinkage patch

[0051] 200: Heating patch

[0052] 300: First layer

[0053] 400: Second layer

[0054] C: Contractile material

[0055] H: Hole

[0056] T: Trigger material Detailed description of the invention

[0057] The present invention can be subjected to various deformations and can have various embodiments. Therefore, specific embodiments are intended to be exemplified and will be described in detail in the detailed description. However, it should be understood that this is not for limiting the present invention to specific embodiments, but includes all deformations, equivalents, and alternatives included in the concept and technical scope of the present invention.

[0058] The terms used in the present invention are only used to describe specific embodiments and are not intended to limit the present invention. In the case where it is not clearly stated in the context, the singular expression includes the plural expression. In the present invention, it should be understood that terms such as "comprising" or "having" are used to specify the existence of features, numbers, steps, operations, components, devices, or combinations thereof described in the specification, and do not preclude the existence or additional possibility of one or more other features, numbers, steps, operations, components, devices, or combinations thereof in advance.

[0059] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. At this time, it should be noted that in the drawings, as much as possible, the same reference numerals are used to denote the same components. In addition, detailed descriptions of well-known functions and features that may obscure the gist of the present invention may be omitted. For the same reason, in the drawings, some components are enlarged, omitted, or schematically illustrated.

[0060] Figure 1A is a top view of a skin irritation patch according to a first embodiment of the present invention, Figure 1B shows Figure 1A a top view of a modified example of the skin irritation patch, Figure 2 is a partial side sectional view of a skin irritation patch according to a first embodiment of the present invention, Figure 3 is a graph and table showing the heat generation reaction duration of a trigger material according to a first embodiment of the present invention, Figure 4 is an experimental example showing the degree of shrinkage of a skin irritation patch according to a first embodiment of the present invention over time, Figure 5A is a top view showing the shrinkage of an existing patch, Figure 5B is a top view showing the shrinkage of a patch according to a first embodiment of the present invention.

[0061] Hereinafter, with reference to Figures 1A to 5B A skin irritation patch 10 according to a first embodiment of the present invention will be described in detail. The skin irritation patch 10 according to a first embodiment of the present invention (hereinafter, used interchangeably with the patch 10) includes a shrinkable material C and a trigger material T. The patch 10 according to a first embodiment of the present invention is provided in a state in which the shrinkable material C and the trigger material T are mixed.

[0062] The patch 10 according to the first embodiment of the present invention can be adhered to the skin and shrink in the state of being adhered to the skin. As Figure 1A shown, the patch 10 can be provided in an overall circular shape. Additionally, as Figure 1B shown, the patch 10 can be provided in various shapes other than a circular shape, etc. In this case, it can be easily adhered to a specific part of the user's face.

[0063] The shrinkable material C is a material that can shrink under preset conditions. Among them, the preset conditions can be understood as the conditions under which the shrinkable material C is applied with specific energy, so that the shrinkable material C is in a specific physical, electrical, or chemical state. In the first embodiment of the present invention, the condition can be understood as the condition that the shrinkable material C is in a state of a specific temperature. For example, when the shrinkable material C becomes a state with a temperature of 37 degrees Celsius or higher, the shrinkable material C can shrink.

[0064] The trigger material T, as a material that can reach the above conditions, can apply preset energy to the shrinkable material C. The trigger material T can apply physical, electrical, or chemical energy to the shrinkable material C. In the first embodiment of the present invention, the preset energy can be thermal energy. For example, the trigger material T can supply thermal energy to the shrinkable material C, so that the shrinkable material C becomes a state of a specific temperature.

[0065] In one embodiment, the shrinkable material C can be polyisopropylacrylamide (PNIPAam, Poly(N-isopropylacrylamide)). Polyisopropylacrylamide (PNIPAam), as a kind of high molecular compound, has both hydrophilic groups and hydrophobic groups, and is a substance that shows volume change or thermosensitive swelling performance characteristics at a temperature similar to body temperature. For example, polyisopropylacrylamide (PNIPAam) shrinks when it is at a temperature of 37 degrees Celsius or higher.

[0066] In one embodiment, the trigger material T can be a self-heating material. The trigger material T can include a substance that autonomously emits heat. The heat emitted from the trigger material T can be supplied to the shrinkable material C. When the shrinkable material C is composed of polyisopropylacrylamide (PNIPAam), through the heat supplied from the trigger material T, the shrinkable material C is at a temperature of 37 °C or higher, so that it can shrink.

[0067] In one embodiment, the trigger material T can be a water-sensitive self-heating material. Specifically, the trigger material T can be a substance that reacts with water when water is supplied, thereby autonomously emitting heat.

[0068] In one embodiment, the triggering material T, as a self-heating material, may include metal series materials. For example, the triggering material T may include any one or more of oxygen-active materials such as metal oxides that generate heat through oxygen-active reactions, metal powders such as aluminum (Al) powder, metal nanoparticles such as aluminum nanoparticles, metal alloys, and zeolite.

[0069] In one embodiment, the triggering material T, as a self-heating material, may include zeolite. Zeolite can be understood as a general term for minerals in which anions generated by the combination of aluminum oxide and silicic acid oxide are combined with alkali metals and alkaline earth metals. Such zeolite can adsorb moisture. When zeolite adsorbs moisture, zeolite can cause a heat generation reaction and dissipate heat. That is, when the triggering material T includes zeolite, it can absorb moisture and dissipate heat to the outside through the heat generation reaction during this process.

[0070] In one embodiment, the triggering material T may include polyol. Polyol can increase the heat generation duration of the triggering material T. The higher the content of polyol, the more it increases the heat generation duration of the triggering material T. The triggering material T also includes a thickening agent, so that an optimal design can be made for the heat generation duration of the triggering material T.

[0071] The polyol is one or more selected from the group consisting of butylenes glycol, glycerin, propanediol, PENTYLENE GLYCOL, 1,2-Hexanediol, and Ethyl Hexanediol. Butylenes glycol or propanediol may be preferred, but it is not limited thereto.

[0072] On the one hand, the triggering material T may include a material that dissipates heat through interaction with the skin. For example, the triggering material T may include capsaicin. Capsaicin, as a compound that causes a spicy taste, can stimulate the epithelium of the skin and dissipate heat through interaction with the skin when in contact with the skin.

[0073] In addition, the triggering material T may include various chemical materials that generate heat through a heat generation reaction under specific conditions. For example, the triggering material T may include chemical materials that generate heat through various heat generation reactions such as heat of solution generated during the dissolution process, heat of solidification or heat of liquefaction generated during phase transformation processes such as solidification or liquefaction, heat of neutralization through acid-base reactions, and heat generated through redox reactions of metals.

[0074] Figure 3The figure shows the temperature (°C) change of the trigger material T over time (min) when the trigger material T includes 5 g of zeolite and 10 g of glycerin, and 5 g of water (H2O) and 0.05 g of thickener (Keltrol F) are added to this trigger material T. Refer to Figure 3 From the left chart and the right table of , it can be confirmed that the temperature of this trigger material T remains above 40 °C from 15 minutes (min) to 90 minutes (min), and remains above 39 °C from 90 minutes (min) to 150 minutes (min). Thus, it can be confirmed that when the trigger material T is composed of zeolite and glycerin and water is supplied thereto, the exothermic reaction continues for a long time, so that the temperature can be maintained above 37 °C.

[0075] Water can be supplied to the trigger material T by various methods. Water can be supplied to the trigger material T when the patch 10 is pasted on the user's skin or just before pasting. For example, when the patch 10 is pasted on the skin, the water contained in the skin itself can be supplied to the trigger material T. Or, just before the patch 10 is to be pasted on the skin, after applying a water-containing dosage form such as lotion or emulsion to the skin of a specific part, when the patch 10 is pasted on the specific part, the water of the dosage form of the specific part can be supplied to the trigger material T. Or, a method can also be used in which just before the patch 10 is to be pasted on the user's skin, after supplying water or a water-containing dosage form to the trigger material T in advance and additionally, this patch 10 is pasted on the skin immediately or after a certain time.

[0076] The patch 10 according to the first embodiment of the present invention can be formed of a hydrogel patch 10, that is, a patch 10 made of a hydrogel material. A hydrogel refers to a substance in which hydrophilic polymers have a three-dimensional crosslinked structure through physical bonds such as hydrogen bonds and ionic bonds or chemical covalent bonds, and thus can contain a lot of water.

[0077] The patch 10 according to the first embodiment of the present invention can include one or more holes H. The holes H are formed in the area of the patch 10 that contacts the skin. The holes H can be formed through the thickness direction of the patch 10.

[0078] The holes H can contract together when the patch 10 contracts. The patch 10 according to the first embodiment of the present invention can include a plurality of holes H. At this time, the plurality of holes H can contract in two-dimensional all directions for each hole H. Figure 4The figure shows an experimental example in which when heat is supplied to the patch 10, as time passes during the heat supply (60s, 90s, 150s, 240s), each hole H contracts. From this, it can be confirmed that the hole H contracts as time passes during the heat supply. Additionally, it can be confirmed that while each hole H maintains a certain shape, it contracts, so that all the holes H contract in two-dimensional all directions.

[0079] Reference Figure 5A and Figure 5B , further elaborate in detail on the contraction of the hole H of the existing patch 10 and the patch 10 according to the first embodiment of the present invention. Figure 5A The figure shows the case where the existing patch 10 has a hole H formed therein. Figure 5B The figure shows the patch 10 according to the first embodiment of the present invention. Reference Figure 5A , the existing patch 10 first records the extension and then contracts in a manner of restoring to the initial state before the extension recording. When it is such an existing patch 10, the patch 10 contracts along the direction of the extension recording. Thus, the multiple holes H also contract along the extension recording direction of the patch 10, and thus each hole H cannot contract uniformly in a certain shape.

[0080] On the contrary, reference Figure 5B , the patch 10 according to the first embodiment of the present invention autonomously contracts regardless of whether there is extension recording. Therefore, the patch 10 can contract not along the extension recording direction but in two-dimensional all directions. Thus, the multiple holes H can be such that each hole H contracts in two-dimensional all directions. In this case, the multiple holes H can contract toward their respective centers.

[0081] In one embodiment, the hole H can contract at a contraction rate of 40% to 90%. Herein, the contraction rate can be understood as the value obtained by dividing the value obtained by subtracting the final size from the initial size of the hole H by the initial size of the hole H. For example, when the diameter of the hole H is 1000μm and the contraction rate is 90%, the hole H can contract to a diameter of 100μm. In this case, assuming that the average size of the pores of human skin is 250μm, the hole H can contract to less than 50% of the average size of the pores. On the one hand, as the hole H contracts, it can apply stimuli such as pore contraction to the skin.

[0082] In one embodiment, the hole H can be provided in a circular shape. The shape of the hole H is not limited thereto, and it can also be provided in other shapes that are not circular. The diameter D of the hole H can be formed to be 1 to 6 times the average size of the pores of human skin, and can preferably be formed to be 1 to 4 times. For example, assuming that the average pore size is 250μm, the diameter D of the hole H can be provided in a size of 250μm to 1500μm, and can preferably be provided in a size of 250μm to 1000μm.

[0083] When there are multiple holes H, the distance between any two adjacent holes H among the multiple holes H can be formed to be 3 to 5 times the diameter D of the hole H, and can preferably be formed to be 4 times. For example, when the diameter of the hole H is 250 μm, the distance between any two adjacent holes H can be formed to be 1000 μm.

[0084] Figure 6A As a partial side sectional view of the skin irritation patch according to the second embodiment of the present invention, a diagram showing the case where the contraction patch and the heating patch are provided separately before use, Figure 6B shows Figure 6A a diagram showing the case where the contraction patch and the heating patch are used in combination with each other when in use.

[0085] Hereinafter, with reference to Figure 6A and Figure 6B The skin irritation patch 10 according to the second embodiment of the present invention will be described in detail. The patch 10 according to the second embodiment of the present invention is different from the first embodiment of the present invention in that the contraction patch 100 and the heating patch 200 are provided separately. Hereinafter, for the sake of convenience of description, the description repeated with the first embodiment of the present invention will be omitted.

[0086] The skin irritation patch 10 according to the second embodiment of the present invention may include a contraction patch 100 and a heating patch 200.

[0087] The contraction patch 100 includes a contractile material C. The contractile material C is the same as the contractile material C of the patch 10 according to the first embodiment of the present invention, and is a material that can contract under preset conditions. As an example, it can be polyisopropylacrylamide (PNIPAam, poly(N-isopropylacrylamide)).

[0088] The heating patch 200 includes a trigger material T. The trigger material T is the same as the trigger material T of the patch 10 according to the first embodiment of the present invention. As a material that can reach the above conditions, it can apply specific energy to the contractile material C and can be a water-sensitive self-heating material. The trigger material T, as a self-heating material, may include zeolite. In addition, the trigger material T may include polyol.

[0089] The contraction patch 100 and the heating patch 200 are provided separately from each other before use ( Figure 6A ). That is, the contraction patch 100 and the heating patch 200 can be provided separately from each other before use. The contraction patch 100 and the heating patch 200 are used in combination with each other when in use ( Figure 6B). When the shrinkage patch 100 and the heating patch 200 are combined, when heat is generated in the heating patch 200, the generated heat can be supplied from the heating patch 200 to the shrinkage patch 100.

[0090] The patch 10 according to the second embodiment of the present invention is the same as the patch 10 according to the first embodiment of the present invention and may include more than one hole H. At this time, the hole H is formed in the area in contact with the skin. The patch 10 according to the second embodiment of the present invention may be either the shrinkage patch 100 or the heating patch 200 in contact with the skin, and the hole H may be formed in one of the shrinkage patch 100 or the heating patch 200 that is adhered to the skin. Alternatively, the hole H may be formed by penetrating through both the shrinkage patch 100 and the heating patch 200 in the thickness direction of the patch 10 at the same position.

[0091] Figure 7 is a partial side sectional view of a skin-stimulating patch according to the third embodiment of the present invention, Figure 8 is a partial side sectional view of a skin-stimulating patch according to a modified example of the third embodiment of the present invention.

[0092] Hereinafter, with reference to Figure 7 and Figure 8 , the skin-stimulating patch 10 according to the third embodiment of the present invention will be described in detail. The patch 10 according to the third embodiment of the present invention differs from the first embodiment of the present invention in that the first layer 300 and the second layer 400 are provided. Hereinafter, for convenience of explanation, the description repeated with the first embodiment of the present invention will be omitted.

[0093] The skin-stimulating patch 10 according to the third embodiment of the present invention includes a first layer 300 and a second layer 400. The first layer 300 and the second layer 400 are provided by being combined with each other.

[0094] The first layer 300 includes a shrinkable material C. The shrinkable material C is the same as the shrinkable material C of the patch 10 according to the first embodiment of the present invention and is a material that can shrink under preset conditions. As an example, it can be polyisopropylacrylamide (PNIPAam, Poly(N-isopropylacrylamide)).

[0095] The second layer 400 includes a triggering material T. The triggering material T is the same as the triggering material T of the patch 10 according to the first embodiment of the present invention. As a material that can reach the above conditions, it can apply specific energy to the shrinkable material C and can be a water-sensitive self-heating material. As a self-heating material, the triggering material T may include zeolite. In addition, the triggering material T may include polyol.

[0096] The second layer 400 can be provided on one side of the first layer 300. The second layer 400 can be provided as being adhered to one side of the first layer 300 to form a surface contact. The patch 10 can be in contact with the user's skin, and either the first layer 300 or the second layer 400 of the patch 10 can be in contact with the skin.

[0097] The second layer 400 can also be provided on both sides of the first layer 300 entirely. As an example, the second layer 400 can be provided as being adhered to both sides of the first layer 300 entirely to form a surface contact. In this case, the patch 10 can be such that the second layer 400 is in contact with the user's skin.

[0098] The patch 10 according to the third embodiment of the present invention is the same as the patch 10 according to the first embodiment of the present invention and can include one or more holes H. At this time, the holes H are formed in the area in contact with the skin. When the second layer 400 is provided only on one side of the first layer 300, the holes H can be formed only on either the first layer 300 or the second layer 400, or the holes H are formed to penetrate through both the first layer 300 and the second layer 400 entirely in the thickness direction at the same position. When the second layer 400 is provided on both sides of the first layer 300, the holes H can also be formed only on the second layer 400, or the holes H are formed to penetrate through both the first layer 300 and the second layer 400 entirely in the thickness direction at the same position.

[0099] The following is a list of embodiments of the present invention.

[0100] Item 1 is a patch for skin irritation, which, as a patch capable of irritating the skin, includes: a contractile material that can contract under preset conditions; and a trigger material that applies preset energy to the contractile material to be able to reach the conditions.

[0101] Item 2 is a patch for skin irritation, which includes: a contractile patch including a contractile material that can contract under preset conditions; and a heating patch including a trigger material that applies heat energy to the contractile material to be able to reach the conditions, where the contractile patch and the heating patch are provided separately before use and are used in combination with each other during use.

[0102] Item 3 is a patch for skin irritation, which includes: a first layer including a contractile material that can contract under preset conditions; and a second layer provided on one side or both sides of the first layer, including a trigger material that applies preset energy to be able to reach the conditions.

[0103] Item 4 is a patch for skin irritation according to Items 1 to 3, wherein the preset energy is heat energy.

[0104] Item 5 is a patch for skin irritation according to Items 1 to 4, wherein the patch is a hydrogel patch.

[0105] Item 6 is a patch for skin irritation according to Items 1 to 5, wherein the contractile material is polyisopropylacrylamide (Poly(N-isopropylacrylamide); PNIPAam).

[0106] Item 7 is a patch for skin irritation according to Items 1 to 6, wherein the triggering material is a water-sensitive self-heating material.

[0107] Item 8 is a patch for skin irritation according to Items 1 to 7, wherein the triggering material includes zeolite.

[0108] Item 9 is a patch for skin irritation according to Items 1 to 8, wherein the triggering material further includes polyol.

[0109] Item 10 is a patch for skin irritation according to Items 1 to 9, wherein the patch includes one or more holes formed in the area in contact with the skin.

[0110] Item 11 is a patch for skin irritation according to Items 1 to 10, wherein the holes are formed as circles having a diameter 1 to 5 times the average pore size, there are a plurality of the holes, and the distance between any two adjacent ones among the plurality of holes is formed to be 3 to 5 times the diameter of the holes.

[0111] The above has described embodiments of the present invention. However, these are merely examples and should be construed that the present invention is not limited thereby, but has the broadest scope based on the basic concepts disclosed in this specification. Those skilled in the art can combine and replace the disclosed embodiments and implement them as embodiments not proposed, but this also does not depart from the scope of the rights of the present invention. In addition, it should be clear that those skilled in the art can easily make changes or deformations based on the embodiments disclosed in this specification, and such changes or deformations also fall within the scope of the rights of the present invention.

Claims

1. A patch for skin irritation, which is a patch capable of irritating the skin, wherein, Comprising: A contractile material that can contract under preset conditions; And A triggering material that applies a preset energy to the contractile material to reach the conditions.

2. A skin irritation patch, comprising: A contractile patch, comprising a contractile material that can contract under preset conditions; And A heating patch, comprising a triggering material that applies heat energy to the contractile material to reach the conditions, The contractile patch and the heating patch are provided separately before use and are used in combination with each other during use.

3. A skin irritation patch, comprising: A first layer, comprising a contractile material that can contract under preset conditions; And A second layer provided on one or both sides of the first layer, comprising a triggering material that applies a preset energy to reach the conditions.

4. The skin irritation patch according to any one of claims 1 to 3, wherein The preset energy is heat energy.

5. The skin irritation patch according to any one of claims 1 to 3, wherein, The patch is a hydrogel patch.

6. The skin irritation patch according to any one of claims 1 to 3, wherein, The contractile material is polyisopropylacrylamide.

7. The skin irritation patch according to any one of claims 1 to 3, wherein, The triggering material is a water-sensitive self-heating material.

8. The skin irritation patch according to claim 7, wherein, The triggering material further comprises zeolite and polyol.

9. The skin irritation patch according to any one of claims 1 to 3, wherein, The patch comprises: One or more holes formed in the area in contact with the skin.

10. The skin irritation patch according to claim 9, wherein The holes are formed as circles with a diameter 1 to 5 times the average pore size, There are multiple holes, and the spacing between any two adjacent holes among the multiple holes is formed to be 3 to 5 times the diameter of the holes.

Images