Cool patch using special fabric with cooling effect and UV protection function

Abstract

The present invention relates to a cool patch that provides a cooling effect and a UV blocking function simultaneously, comprising: a cooling layer having a porous structure containing a cooling material; an intermediate layer located below the cooling layer containing a water-soluble UV blocking component; and a lower layer located below the intermediate layer that adheres to the skin and includes an adhesion enhancer that helps the UV blocking component remain on the skin.

Description

Technology Field

[0001] The present invention relates to a cool patch using a special fabric having a cooling effect and a UV blocking function. Background Technology

[0002] The function of a beauty sheet mask is that when a face-shaped mask is applied to the skin, it blocks the external environment, raising the skin temperature to promote blood circulation, and the essence ingredients impregnated in the sheet mask supply moisture and nutrients. Various types of fabric materials are used in sheet mask packs. Natural fibers such as cotton, silk, and ramie fabric, regenerated fibers such as rayon, and synthetic fibers such as polyethylene terephthalate, polypropylene, and nylon are used.

[0003] While these fiber sheets provided excellent hydration and nutrient supply when used in face masks, their barrier effect—another essential function of the pack—was low. Therefore, the newly developed face mask sheet features foil laminated onto the fibers. The foil-laminated fiber sheet exhibits the lustrous metallic properties of aluminum, conveying a glamorous and luxurious image. Furthermore, its superior barrier function against the external environment effectively raises skin temperature and aids in the absorption of active ingredients, thereby enhancing moisturizing effects. Although the temperature increase in the face mask promotes blood circulation—a key function of the pack—it also had the disadvantage of causing a stuffy sensation for consumers due to the temperature rise resulting from the barrier effect.

[0004] Currently, there are separate products on the market that provide cooling effects or UV protection. However, there are no products that offer both cooling and UV protection simultaneously. Furthermore, existing sunscreens are in cream form, making them difficult to use over makeup and having poor longevity. Additionally, there is a growing demand for skin-friendly and effective products that utilize safe materials registered as cosmetic ingredients.

[0005] Conventional cooling mask packs provide only temporary cooling and lack UV protection. On the other hand, sunscreens are primarily used in the form of creams or sprays, which present problems such as being difficult to apply over makeup and having low durability. To overcome these limitations, the present invention is designed so that UV-blocking ingredients remain on the skin when the cooling mask pack is removed after being attached to the skin. This ensures both ease of use and functionality.

[0006] The relevant prior art literature is as follows.

[0007] (Patent Document 0001) Korean Published Patent Application No. 10-2019-0081589 (Date of Publication: July 9, 2019)

[0008] (Patent Document 0002) Republic of Korea Registered Patent Publication No. 10-1885086 (Registration Date: July 30, 2018) The problem to be solved

[0009] The present invention aims to solve the problem of providing a cool patch that provides a continuous UV protection effect in which UV-blocking ingredients remain on the skin even after the fabric is removed for the absorption or retention of UV-blocking agents on the skin.

[0010] In addition, the present invention aims to solve the problem of providing a cool patch that minimizes skin irritation even if a UV blocking ingredient is absorbed into or remains on the skin.

[0011] In addition, the present invention aims to solve the problem of providing a cool patch in which the process of removing the fabric is simple and residual ingredients do not interfere with makeup or daily activities. means of solving the problem

[0012] To solve the above-mentioned problem, the present invention provides a cool patch that simultaneously provides a cooling effect and a UV blocking function, characterized by comprising: a cooling layer having a porous structure containing a cooling material; an intermediate layer located below the cooling layer containing a water-soluble UV blocking component; and a lower layer located below the intermediate layer that adheres to the skin and includes an adhesion enhancer that helps the UV blocking component remain on the skin.

[0013] In addition, the solution to the problem is to provide a cool patch characterized in that the cooling layer comprises methyl diisopropylpropionamide and aloe vera.

[0014] In addition, the solution to the problem is to provide a cool patch characterized in that the cooling layer comprises methyl diisopropylpropionamide and eucalyptus.

[0015] In addition, the solution to the problem is to provide a cool patch characterized by the intermediate layer comprising terephthalilylidendicamphorsulfonic acid (TDSA) and phenylbenzimidazolesulfonic acid.

[0016] In addition, the solution to the problem is to provide a cool patch characterized in that the lower layer is composed of a hydrogel coated with hyaluronic acid.

[0017] In addition, the solution to the problem is to provide a cool patch characterized in that the cooling material of the cooling layer preferentially absorbs skin heat to provide immediate coolness to the skin, the water-soluble UV blocking ingredient included in the middle layer reacts with the moisture and body temperature of the skin and is gradually released and absorbed into the skin, and the adhesive reinforcing agent of the lower layer fixes the UV blocking ingredient to the skin. Effects of the invention

[0018] The present invention can provide a cool patch that provides a continuous UV protection effect, in which UV-blocking ingredients remain on the skin even after the fabric is removed for the absorption or retention of UV-blocking agents on the skin.

[0019] In addition, the present invention can provide a cool patch that minimizes skin irritation even if a UV blocking ingredient is absorbed into or remains on the skin.

[0020] In addition, the present invention can provide a cool patch that has a simple process for removing the fabric and does not interfere with makeup or daily activities due to residual ingredients. Brief explanation of the drawing

[0021] Figure 1 illustrates the three-layer structure of the cool patch of the present invention. Figure 2 is a test photograph of the cooling performance of the cool patch of the present invention. Specific details for implementing the invention

[0022] The present invention is susceptible to various modifications and may take various forms, and embodiments are to be described in detail in the text. However, this is not intended to limit the invention to the specific disclosed forms, and it should be understood that the invention includes all modifications, equivalents, and substitutions that fall within the spirit and scope of the invention. Similar reference numerals have been used for similar components in the description of each figure. Terms such as "first," "second," etc., may be used to describe various components, but said components should not be limited by said terms.

[0023] The above terms are used solely for the purpose of distinguishing one component from another. The terms used in this application are used merely to describe specific embodiments and are not intended to limit the invention. The singular expression includes the plural expression unless the context clearly indicates otherwise.

[0024] In this application, terms such as "comprising" or "consisting of" are intended to specify the existence of the features, numbers, steps, actions, components, parts, or combinations thereof described in the specification, and should be understood as not precluding the existence or addition of one or more other features, numbers, steps, actions, components, parts, or combinations thereof.

[0025] Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as generally understood by those skilled in the art to which the present invention pertains. Terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with their meaning in the context of the relevant technology, and should not be interpreted in an ideal or overly formal sense unless explicitly defined in this application.

[0026] Hereinafter, preferred embodiments of the present invention will be described in more detail with reference to the drawings.

[0027] Figure 1 illustrates the three-layer structure of the cool patch of the present invention.

[0028] Referring to FIG. 1, the present invention is a cool patch that provides a cooling effect and a UV blocking function simultaneously, and may be provided to include a cooling layer (100) having a porous structure containing a cooling material, an intermediate layer (200) located below the cooling layer and containing a water-soluble UV blocking component, and a lower layer (300) located below the intermediate layer and adhering to the skin and containing an adhesion enhancer that helps the UV blocking component remain on the skin.

[0029] More specifically, the cooling layer (100) may be made of a porous fabric based on polyvinyl alcohol (PVA) or hydroxypropylmethylcellulose (HPMC).

[0030] The above cooling layer (100) is designed with a porous structure to facilitate air circulation, and more specifically, has a structure with fine holes that allows heat to be quickly released without hindering skin respiration.

[0031] In addition, the cooling material included in the cooling layer (100) may include methyl diisopropylpropionamide, glacial water, aloe vera leaf extract, and eucalyptus extract.

[0032] Methyl diisopropylpropionamide is a synthetic ingredient that provides a powerful cooling effect and has the effect of making you feel cool the moment it touches the skin.

[0033] Natural extracts such as aloe vera leaf extract provide skin soothing and moisturizing effects along with a slight cooling effect, and eucalyptus extract provides a refreshing sensation along with the effect of lowering skin temperature.

[0034] Glacier water provides a direct cooling effect to the skin, and when used with cooling ingredients, it maximizes the effect.

[0035] The above intermediate layer (200) may be made of polyvinylpyrrolidone (PVP) or a gelatin-based water-soluble membrane.

[0036] Polyvinylpyrrolidone (PVP) is a water-soluble polymer that is highly soluble in water, skin-friendly, and safe. When it comes into contact with moisture on the skin, it rapidly dissolves or expands to release active ingredients and forms a thin film on the skin, which has the effect of increasing the retention of the ingredients.

[0037] Gelatin is an animal protein that is highly skin-friendly and biodegradable. It melts gently in response to skin temperature, slowly releases active ingredients, provides moisturizing effects to the skin, and promotes the absorption of UV-blocking ingredients.

[0038] That is, the effect of the intermediate layer (200) is as follows.

[0039] 1. Gradual release of UV-blocking ingredients

[0040] PVP / gelatin slowly dissolves or expands in response to skin moisture and body temperature. This allows UV-blocking ingredients to be gradually released and absorbed evenly into the skin.

[0041] In other words, it has the effect of helping ingredients such as TDSA and phenylbenzimidazole sulfonic acid to be continuously delivered to the skin.

[0042] 2. Skin Compatibility and Safety

[0043] Both PVP and gelatin are safe materials approved by the Ministry of Food and Drug Safety and cause minimal skin irritation. In particular, gelatin is a naturally derived ingredient that is suitable even for sensitive skin.

[0044] 3. Enhanced skin adhesion

[0045] PVP and gelatin provide adhesion when applied to the skin, enhancing the adhesive strength to ensure the mask pack stays firmly in place.

[0046] Therefore, it has the effect of ensuring that UV-blocking ingredients remain on the skin without causing irritation even when the mask pack is removed.

[0047] 4. Skin moisturizing effect

[0048] Gelatin forms a moisturizing barrier on the skin, effectively retaining moisture.

[0049] PVP is effective in preventing dryness by supplying moisture to the skin.

[0050] 5. Improvement in the stability of UV-blocking ingredients

[0051] PVP and gelatin stably protect UV-blocking ingredients and prevent them from decomposing due to heat or moisture. This allows the effectiveness of the UV-blocking ingredients to be maintained for a long time.

[0052] 6. Promotes skin absorption

[0053] PVP and gelatin form a thin film on the surface of the skin, helping sunscreen ingredients to be absorbed deep into the skin. In particular, they are effective in increasing the skin absorption rate of water-soluble sunscreen ingredients (e.g., TDSA).

[0054] In other words, by making the middle layer a water-soluble membrane based on PVP or gelatin, various effects such as the gradual release of UV-blocking ingredients, skin compatibility, enhanced adhesion, moisturizing effect, and ingredient stability can be obtained. These characteristics play a key role in enabling the mask pack of the present invention to simultaneously provide a cooling effect and a UV-blocking function.

[0055] The UV blocking components included in the above intermediate layer (200) are as follows.

[0056] 1. UV-A blocking: Terephthalilyliden dicampersulfonic acid (TDSA), disodium phenyldibenzimidazole tetrasulfonate.

[0057] 2. UV-B blocking: Phenylbenzimidazole sulfonic acid.

[0058] 3. Naturally derived ingredients: Lithospermum root extract, Scutellaria root extract.

[0059] Finally, the lower layer (300) may be provided with a hydrogel coated with a skin-friendly adhesive.

[0060] In addition, hyaluronic acid and glycerin may be additionally impregnated as auxiliary components.

[0061] As a result, the lower layer (300) has the effect of stably attaching the cool patch to the skin and helping the UV blocking ingredients remain on the skin when removed.

[0062] The operating principle of the cool patch of the present invention is explained below.

[0063] First, when a user attaches the cool patch to the skin, the cooling layer (100) absorbs the heat from the skin and provides immediate coolness. Subsequently, the water-soluble components contained in the middle layer (200) react with the moisture and body temperature of the skin and are gradually released into the skin and absorbed. Afterward, when the cool patch is removed, the adhesive reinforcing agent of the lower layer (300) fixes the UV-blocking components to the surface of the skin and leaves them therein.

[0064] As a result, the UV-blocking ingredients remaining on the skin are absorbed or form a thin film, enabling them to provide a continuous UV-blocking effect.

[0065] The method for manufacturing the cool patch of the present invention is as follows.

[0066] 1. Fabric Manufacturing Process

[0067] The cooling layer, UV protection layer, and skin adhesion layer were each manufactured by solvent casting.

[0068] 2. Component Impregnation Process

[0069] Cooling layer: Cooling raw material mixed into a PVA / HPMC solution at 50~60℃ and then dried.

[0070] UV protection layer: Coated by dispersing UV-blocking ingredients in a PVP / gelatin solution.

[0071] 3. Lamination and Molding Processes

[0072] Three layers are joined using a heat-pressing method and then die-cut into a face shape.

[0073] An example of the cool patch of the present invention is as follows.

[0074] [Example 1]

[0075] Methyl diisopropylpropionamide (0.5%) and aloe vera leaf extract (3%) are impregnated into the cooling layer.

[0076] TDSA (2%) and phenylbenzimidazole sulfonic acid (1.5%) are applied to the UV protection layer.

[0077] Add hyaluronic acid (1%) to the skin adhesion layer.

[0078] Result: Skin temperature decreased by 3℃ after 10 minutes of use, and UV protection effect (SPF 30 / PA+++) was confirmed.

[0079] [Example 2]

[0080] Naturally derived UV-blocking ingredients (Lithospermum root extract 2%, Scutellaria root extract 1%) are applied to the UV-blocking layer.

[0081] Result: SPF 20 / PA++ effectiveness and skin soothing effect confirmed.

[0082] Although the invention has been described above with reference to embodiments, a person skilled in the art will understand that various modifications and changes can be made to the invention without departing from the spirit and scope of the invention as described in the following claims. Explanation of the symbols

[0083] 100 : Cooling layer 200 : Intermediate layer 300 : Lower layer

Claims

Claim 1 A cool patch that provides both a cooling effect and a UV blocking function, characterized by comprising: a cooling layer having a porous structure containing a cooling ingredient; an intermediate layer located below the cooling layer and containing a water-soluble UV blocking ingredient; and a lower layer located below the intermediate layer that adheres to the skin and includes an adhesion enhancer that helps the UV blocking ingredient remain on the skin. Claim 2 A cool patch according to claim 1, wherein the cooling layer comprises methyl diisopropylpropionamide and aloe vera. Claim 3 A cool patch according to claim 1, wherein the cooling layer comprises methyl diisopropylpropionamide and eucalyptus. Claim 4 A cool patch according to claim 2 or 3, characterized in that the intermediate layer comprises terephthalilylidendicampersulfonic acid (TDSA) and phenylbenzimidazolesulfonic acid. Claim 5 A cool patch according to claim 4, characterized in that the lower layer is composed of a hydrogel coated with hyaluronic acid. Claim 6 A cool patch according to claim 5, characterized in that the cooling material of the cooling layer preferentially absorbs skin heat to provide immediate cooling to the skin, the water-soluble UV blocking ingredient included in the middle layer reacts with the moisture and body temperature of the skin and is gradually released and absorbed into the skin, and the adhesion reinforcing agent of the lower layer fixes the UV blocking ingredient to the skin.

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