Nail repair patch containing functional material

The nail repair patch combines repair, antifungal, and cosmetic functions with easy attachment and removal, addressing the limitations of existing nail care products by using a water-adhesive component and hydrogel care materials.

WO2025116274A1PCT designated stage expired Publication Date: 2025-06-05BARNG KEEJUNG
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Patent Information

Application Number
PCT/KR2024/015629
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Priority Date
2023-11-27
Filing Date
2024-10-15
Publication Date
2025-06-05

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Abstract

The present invention relates to a multi-functional nail repair patch for cosmetic and care applications. The nail repair patch, according to the present invention, can satisfy a user's needs for both cosmetic and care applications, is convenient to use due to being attached to a nail with only a small amount of water, and is excellent in terms of sanitation due to being replaced after one to three days of use. The repair patch may have a first pattern or a second pattern, allowing the user to attach one having the first pattern and subsequently replace same with one having the second pattern, thus providing visual entertainment. Therefore, the repair patch has industrial applicability and maximized marketability.
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Description

Nail repair patch containing functional substances

[0001] The present invention relates to a functional nail repair patch that can be easily attached and removed. Furthermore, the present invention relates to a functional nail repair patch that provides a cosmetic appearance while allowing a functional ingredient, encapsulated in a hydrogel within a porous support matrix, to act on the nail.

[0002] Describe the causes of changes in nail color or shape:

[0003] About 50% of changes in nail color or shape are caused by fungal infections. Other causes include nail damage, congenital deformities, psoriasis, lichen planus, and infections. Fungal infections are caused by fungi such as Trichophyton rubrum and Trichophyton mentagrophytes. Patent Document 1 describes a pharmaceutical composition for the prevention or treatment of onychomycosis, comprising urea, fumaric acid, 1,3-butylene glycol, a gel-forming polymer, a crosslinking agent, and water (see claim 1).

[0004]

[0005] Describe nail care market trends:

[0006] The global nail care market is projected to grow at a CAGR of 8.0% from 2022 to 2031, reaching a market size of $23.1 billion by 2031. A variety of products have been launched to meet consumer demand, including liquid nail polish, UV-cured gel nails, and dry stickers. Patent Document 2 describes a nail sticker and its manufacturing method, comprising a PET film, an acrylic-based adhesive layer, a vacuum-coated coating layer, a color layer, a glitter layer, and a protective tape (see claim 1). Patent Document 3 also describes a semi-cured gel nail sticker comprising a release film layer, a top gel layer containing a UV-curable resin, a printing layer, a color layer, a curable adhesive layer, a release paper, and a UV light-blocking film (see claim 1).

[0007]

[0008] Describes consumer needs for multi-functionality:

[0009] Consumers with discolored or discolored nails have a strong need for products that combine repair and cosmetic functions. While nail care products may offer repair functions, their cosmetic benefits are often limited if they are typically band-shaped or transparent, increasing consumers' desire for more aesthetic benefits. Furthermore, consumers who have not experienced any discoloration or discoloration but have suffered minor damage to their nails due to previous nail care, or who require preventative care, such as those with severe dryness, also have this need. Prior art literature, for example, Patent Document 4, discloses a gel nail sticker comprising a release film layer, a top gel layer containing a UV-curable resin, and an adhesive layer containing an antibacterial agent, wherein the antibacterial agent comprises copper-boehmite composite particles (see claim 1).

[0010]

[0011] Describes consumer needs for products that are easy to attach and remove:

[0012] Some consumers dislike nail care products that are difficult to apply to their nails, or the microscopic damage caused by prolonged use. Therefore, the development of products that are easy to apply and remove is necessary.

[0013] Task 1 is to provide a nail repair patch that can be easily applied and removed using water. Task 2 is to provide a multi-functional nail repair patch that possesses both repair and cosmetic functions. Task 3 is to provide a nail repair patch that possesses antifungal, moisturizing, and cosmetic functions.

[0014] Solution 1 is,

[0015] When wetted with water, a water-adhesive component (110) that provides adhesiveness is formed on the lower surface,

[0016] A porous support matrix (120) containing a care functional material (130); and

[0017] This is a nail repair patch comprising a cosmetic cover layer (300) having an aesthetically pleasing pattern printed on the upper part and an adhesive component applied on the lower part.

[0018] Solution 2 is, in Solution 1,

[0019] The above moisture adhesive component (110) is

[0020] It is a nail repair patch containing starch or gelatin ingredients.

[0021] Solution 3 is, in solution 1 or 2,

[0022] The above care functional material (130) is

[0023] A nail repair patch characterized by containing at least one of an antibacterial functional ingredient, a nutritional functional ingredient, and a moisturizing functional ingredient.

[0024] Solution 4 is, in solution 1 or 2,

[0025] The above-mentioned care functional material (130) is a nail repair patch characterized by being a hydrogel.

[0026] Solution 5 is, in Solution 1 or 2,

[0027] The adhesive component under the above cosmetic cover layer (200) is:

[0028] This is a nail repair patch characterized by containing the same component as the above-mentioned moisture adhesive component (110).

[0029] Solution 6 is, in solution 1 or 2,

[0030] This is a nail repair patch characterized in that the lower surface of the porous support matrix (120) is a hydrophilic surface (121).

[0031] Solution 7 is, in solution 1 or 2,

[0032] This is a nail repair patch characterized in that metal nanoparticles are applied to the lower surface of the porous support matrix (120).

[0033] Solution 8 is, in solution 1 or 2,

[0034] This is a nail repair patch characterized in that the ventilation holes on the upper surface of the porous support matrix (120) are smaller than the ventilation holes on the lower surface.

[0035] Solution 9 is, in solution 1 or 2,

[0036] The above moisture adhesive component (110) is

[0037] A nail repair patch characterized by being formed by using a process of spraying a solution containing a water-adhesive substance and then drying it, or by using a process of spraying the solution and then applying a powder of the solution and then drying it, or by forming a water-adhesive substance into a hydrogel and applying it.

[0038] Effect 1: It can simultaneously satisfy consumers' needs for both care and beauty functionality. Effect 2: It offers the convenience of easily attaching and removing the patch to the nail with just a little water. Effect 3: It offers superior hygiene, as the patch can be left on for 1-3 days and then replaced with a new one. Effect 4: It can also provide fun, as users can apply a patch with a first design and then a second design.

[0039] Figure 1 is a cross-sectional schematic diagram of a repair patch according to Example 1 of the present invention.

[0040] Figure 2 is a cross-sectional schematic diagram of a repair patch according to Example 2 of the present invention.

[0041] Figure 3 is a cross-sectional schematic diagram of a repair patch according to Example 3 of the present invention.

[0042] Terms or words used in this specification and claims should not be interpreted as limited to their usual or dictionary meanings, but should be interpreted as having been described by the inventor based on meanings and concepts consistent with the technical idea of ​​the present invention in order to best explain the terms and concepts of the invention.

[0043] Therefore, the present invention is not limited to the manufacturing examples, experimental examples, or examples presented, and various modifications and changes are possible within the scope equivalent to the technical idea of ​​the present invention and the technical idea described in the claims below by those of ordinary skill in the art to which the present invention pertains. The scope of the present invention may include many such modifications.

[0044]

[0045] The term "repair" in this specification refers to the prevention or improvement of changes in the color or appearance of nails, encompassing antibacterial, care, nutritional, and / or moisturizing functions. Furthermore, the term "patch" combines the dictionary definition of "piece" with the overall technical concept of providing repair functions.

[0046]

[0047] Example 1. Beauty and care complex functional repair patch

[0048] The repair patch according to Example 1 of the present invention includes a moisture adhesion and functional layer (100) and a cosmetic cover layer (200). (See FIG. 1)

[0049]

[0050] The moisture adhesive and functional layer (100) is a composition formed so that it can be adhered to the fingernails and toenails with moisture using saliva or a small amount of water, and contains a care functional substance so that the substance can provide a care function to the fingernails and toenails, and includes a moisture adhesive component (110), a porous support matrix (120), and a care functional substance (130).

[0051]

[0052] The water-soluble adhesive component (110) includes a component that exhibits water-soluble adhesive properties. That is, it includes a component capable of exhibiting adhesive properties with only a small amount of moisture. Examples include starch and / or gelatin. Depending on design conditions, proteins, glycolipids, and other components exhibiting similar properties may also be utilized.

[0053]

[0054] The porous support matrix (120) is a configuration that supports the water-adhesive component (110) while providing a care function. It is a three-dimensional hexahedral sheet structure. For example, it is made of porous paper, porous cellulose, porous membrane-shaped materials, and / or porous non-woven fibers and is formed to have the shape of a fingernail so that it can cover the entire surface of the fingernail with changes in color or shape. Depending on the design conditions, any material and shape that has porous characteristics, flexibility, and can contain a hydrogel can be adopted.

[0055]

[0056] Hereinafter, a process for forming a water-based adhesive component (110) may be described. A solution of starch dissolved in water and / or a solution of collagen dissolved in water may be sprayed onto a porous support matrix (120) and dried. Preferably, the water-based adhesive component (110) is manufactured so that it can adhere to the nail and exhibit a function that allows adhesion for 1 to 3 days. That is, the process of spraying and drying a solution containing the adhesive component is performed at least twice to laminate the water-based adhesive component (110) so that the thickness is approximately the same as that of the porous support matrix (120).

[0057] Alternatively, a powder obtained by drying and pulverizing a solution of starch dissolved in water and / or a powder obtained by drying and pulverizing a solution of collagen dissolved in water may be used together. In this case, the process of spraying a solution containing an adhesive component onto a porous support matrix (120), applying the powder, and then drying may be performed at least twice. In this case, even if the thickness of the water-adhesive component (110) is less than the thickness of the porous support layer (120), the adhesive strength can be maintained.

[0058] Alternatively, the water-adhesive component (110) may be formed into a hydrogel and applied to the porous support matrix (120). That is, the hydrogel may be formed into a hydrogel containing a starch component and / or collagen, a gelling agent, a crosslinking agent, and water and applied to the porous support matrix (120). In this case, it is also preferable to apply the hydrogel to the porous support matrix (120) multiple times.

[0059] Depending on the design conditions, a small amount of general adhesive component may be applied to the upper portion of the porous support matrix (120). This is to prepare for cases where it is necessary to maintain contact with the upper cosmetic cover layer (200) during the product launch process.

[0060]

[0061] As the moisture adhesive component (110) is formed in this way, when the user applies a small amount of water to the lower part of the moisture adhesive and functional layer (100) and then attaches it to the fingernail, the water-soluble adhesive function of the moisture adhesive component (110) is activated and the patch is attached to the fingernail.

[0062] In addition, as will be examined again below, since the patch is compressed at the same time as it is adhered, the moisture adhesive component (110) passes through the porous support matrix (120) and also affects the upper cosmetic cover layer (200), so that the patch structure naturally becomes solid. That is, as it is compressed, the antibacterial component, nutritional component, and / or moisturizing component included in the care functional material (200) naturally act on the fingernails and toenails, and the porous support matrix (120) and the cosmetic cover layer (300) of the moisture adhesive and functional layer (100) form the skeleton of the patch structure, so that the structure becomes solid.

[0063] Additionally, as the adhesive strength decreases over time due to the consumption of the water-based adhesive (110), the patch can be easily removed using water.

[0064]

[0065] The care functional material (130) is formed into a hydrogel and is a material containing an antibacterial functional ingredient, a nutritional functional ingredient, and / or a moisturizing ingredient. For example, it is formed into a hydrogel containing a gelling agent, a crosslinking agent, and water and is contained within a porous support matrix (120).

[0066] Examples of the loading process include applying a weakly viscous hydrogel and allowing it to be naturally immersed inside, or putting a porous support matrix (120) into a weakly viscous hydrogel liquid and then drying it, or applying the hydrogel liquid multiple times, or loading the hydrogel during the hexahedron formation process of the porous support matrix (120). If the conditions are in accordance with the solution principle, the optimal process is selected according to the hydrogel characteristics according to the type of component of the care functional material (130).

[0067]

[0068] If the care functional material (130) includes an antibacterial functional ingredient, it may include an antibacterial functional ingredient against fungi. Preferably, it includes an antibacterial functional ingredient against Trichophyton rubrum and Trichophyton mentagrophytes. In addition, it may include an antibacterial component against the pathogens from a natural product extract. For example, it may include aminopolysaccharide, chitosan, and extracts of the Chinese juniper tree. Depending on the design conditions, since the antibacterial functional ingredient also performs a preventive function, an antifungal functional ingredient and a component with a somewhat weaker antibacterial function may be selectively included.

[0069]

[0070] The care functional material (130) may include ingredients for moisturizing and nourishing the fingernails and toenails. Examples include lavender essential oil, citron oil, lime oil, and phytoncide essential oil. Depending on design conditions, functional ingredients for nail care may be included in addition to the aforementioned ingredients.

[0071]

[0072] The cosmetic cover layer (200) is a cover layer with an aesthetically pleasing pattern printed on the upper surface and an adhesive applied to the lower surface. It is formed to have the shape of a fingernail while covering the surface of the fingernail. For example, it can be manufactured using PET film. Depending on design conditions, it can be formed by applying a general adhesive to the lower surface of a film commonly used in the nail sticker field. Alternatively, a material more rigid than the film can be used.

[0073]

[0074] When the product is launched, it is sufficient for the moisture-adhesive and functional layer (100) and the cosmetic cover layer (200) to be adhered to a certain degree. The porous support matrix (120) and the cosmetic cover layer (200) are adhered to each other due to the adhesive force of the adhesive component at the bottom of the cosmetic cover layer (300) and the surface tension caused by room temperature and humidity. To launch more firmly, a small amount of a general adhesive component may be applied to the upper part of the porous support matrix (120).

[0075] When the patch is compressed while being adhered, the moisture adhesive component (110) passes through the porous support matrix (120), which affects the adhesive force between the porous support matrix (120) and the cosmetic cover layer (200), thereby generating additional surface tension and making the patch more solid.

[0076]

[0077] Example 2. Beauty and care complex functional repair patch

[0078] The repair patch according to Example 2 of the present invention includes a moisture adhesive and functional layer (100), a moisture adhesive layer (210), and a cosmetic cover layer (200). (See FIG. 2)

[0079] The difference from Example 1 is as follows: the formation of the moisture-bonding layer (210). Depending on the design conditions, the application of a general adhesive component to the lower portion of the cosmetic cover layer (200) and the formation of the moisture-bonding layer (210) may be performed simultaneously. Alternatively, only the moisture-bonding layer (210) may be formed.

[0080] The manufacturing of the moisture adhesive layer (210) can be understood from the description of the manufacturing process of the moisture adhesive component (110). That is, the solution spraying and drying process can be repeated several times, or the solution spraying and powder application and drying process can be repeated several times, or the layer can be formed into a hydrogel and applied.

[0081]

[0082] Example 3. Beauty and care complex functional repair patch

[0083] The difference from Example 2 is as follows: the lower surface of the porous support matrix (120) is formed as a hydrophilic surface (121). (See Fig. 3) The reason for forming the hydrophilic surface (121) is to prevent the water adhesive component (110) from falling off.

[0084]

[0085] An example of a process for implementing a hydrophilic surface (121) is to form a hydrophilic surface (121) by spraying an alkali metal solution on the lower surface of a porous support matrix (120). An example of the alkali metal solution is a low-concentration sodium hydroxide solution. When an alkali metal solution is used, in addition to the effect of forming a hydrophilic surface (121), it can also provide the effect of partially organizing the keratin or exfoliated surface tissue of the nail or causing the nail to partially swell, thereby allowing for rapid absorption of the care functional material (130). Depending on the design conditions, an alkali metal salt may also be used.

[0086] Alternatively, metal nanoparticles may be applied to the lower surface. After the metal nanoparticles are applied, a water-adhesive component (110) is formed, which naturally forms a hydrophilic surface (121), and furthermore, the metal nanoparticles may additionally exhibit antibacterial functionality.

[0087]

[0088] Depending on the design conditions, the upper surface of the porous support matrix (120) may be formed as a hydrophilic surface like the lower surface, or may be formed as a hydrophobic surface (122). This is related to the adhesion to the cosmetic cover layer (200).

[0089] In the case where only a general adhesive component is applied to the lower surface of the cosmetic cover layer (200) and a porous support matrix (120) is formed using nonwoven fabric fibers, a hydrophobic surface (122) may not be formed due to the hydrophobic characteristics of the nonwoven fabric fiber surface itself. However, since a problem may arise in the adhesion if the hydrophobicity of the porous support matrix (120) material itself is weak due to its own characteristics, a hydrophobic surface (122) is formed in this case.

[0090]

[0091] Depending on the design conditions, the bonding area of ​​the upper surface of the porous support matrix (120) can be made wider to ensure adhesion with the cosmetic cover layer (200). To this end, the ventilation holes of the upper surface of the porous support matrix (120) can be made smaller than the ventilation holes of the lower surface to increase the bonding area between the upper surface and the cosmetic cover (200).

[0092]

[0093] Depending on the design conditions, when forming the care functional material (130) into a hydrogel, the liquid phase of the functional ingredients may be stirred, pre-processed with sonication, and formed into a liposome before forming into a hydrogel.

[0094] The repair patch manufactured by Examples 1 to 3 according to the present invention can simultaneously satisfy the care functionality and cosmetic functionality needs of consumers, and is convenient in that the patch can be easily attached to the fingernails and toenails with just a little water, and is excellent in terms of hygiene because the patch can be attached for 1 to 3 days and then replaced with another patch, and can also provide fun because a patch with a first pattern can be attached and then a patch with a second pattern can be attached, so it can be said to be an invention with maximized marketability as well as industrial applicability.

Claims

1. When wetted with water, a water-adhesive component (110) that provides adhesive strength is formed on the lower surface. A porous support matrix (120) containing a care functional material (130); and A nail repair patch comprising a cosmetic cover layer (300) having an aesthetically pleasing pattern printed on the upper portion and an adhesive component applied on the lower portion.

2. In claim 1, The above moisture adhesive component (110) is A nail repair patch containing starch or gelatin ingredients.

3. In claim 1 or 2, The above care functional material (130) is A nail repair patch characterized by containing at least one of an antibacterial functional ingredient, a nutritional functional ingredient, and a moisturizing functional ingredient.

4. In claim 1 or 2, A nail repair patch characterized in that the above-mentioned care functional material (130) is a hydrogel.

5. In claim 1 or 2, The adhesive component under the above cosmetic cover layer (200) is A nail repair patch characterized by containing the same ingredient as the above-mentioned moisture adhesive ingredient (110).

6. In claim 1 or 2, A nail repair patch, characterized in that the lower surface of the porous support matrix (120) is a hydrophilic surface (121).

7. In claim 1 or 2, A nail repair patch characterized in that metal nanoparticles are applied to the lower surface of the porous support matrix (120).

8. In claim 1 or 2, A nail repair patch, characterized in that the ventilation holes on the upper surface of the porous support matrix (120) are smaller than the ventilation holes on the lower surface.

9. In claim 1 or 2, The above moisture adhesive component (110) is A nail repair patch characterized in that it is formed by using a process of spraying a solution containing a water-adhesive substance and then drying it, or by using a process of spraying the solution and then applying a powder of the solution and then drying it, or by forming the water-adhesive substance into a hydrogel and then applying it.

Citation Information

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