Hydrocolloid-containing gel base

Abstract

The present invention relates to a hydrocolloid-containing gel base. The gel base comprises: a polyurethane substrate (11); an adhesive layer (12) which is formed over the substrate (11) and contains a hydrocolloid; and a release layer (13) which can be separated from the adhesive layer (12).

Description

Gel base containing hydrocolloid

[0001] The present invention relates to a hydrocolloid-containing gel base, and more particularly, to a hydrocolloid-containing gel base that is attached to a fingernail or toenail to prevent damage or to enable damage recovery.

[0002] Fingernails and toenails can be damaged naturally or for various reasons. For example, nail art, such as decorating fingernails or toenails, can damage them. Furthermore, fingernails and toenails can be damaged naturally due to a lack of moisture or nutrients. Therefore, there is a need for a method to prevent such damage. Regarding the prevention of fingernail or toenail damage, Patent Registration No. 10-0977351 discloses a composition for protecting fingernails and toenails and a method for protecting them using the same. Furthermore, Patent Publication No. 10-2021-0068738 discloses a protective patch for nail art. It is advantageous for a means for preventing or treating fingernail or toenail damage to be in the form of an easily attachable patch. Furthermore, it must contain appropriate ingredients for preventing or treating damage. However, the prior art does not disclose a means for preventing or treating fingernail or toenail damage in this form.

[0003] The present invention is intended to solve the problems of prior art and has the following objectives.

[0004] The purpose of the present invention is to provide a hydrocolloid-containing gel base that can be attached to a fingernail or toenail and includes a hydrocolloid component to prevent or treat damage to the fingernail or toenail.

[0005] According to a preferred embodiment of the present invention, the gel base comprises a polyurethane component substrate; an adhesive layer bonded to the substrate and comprising a hydrocolloid component; and a release layer separable from the adhesive layer (12).

[0006] According to another suitable embodiment of the present invention, the adhesive layer comprises a styrene / butadiene copolymer.

[0007] According to another suitable embodiment of the present invention, the adhesive layer comprises cellulose gum.

[0008] According to another suitable embodiment of the present invention, the adhesive layer comprises keratin in an amount of 0.05 to 0.20 wt% relative to the total weight of the adhesive layer.

[0009] According to another suitable embodiment of the present invention, the adhesive layer comprises a first antibacterial component comprising zeolite, zinc stearate, fatty acids or stearamide or a second antibacterial component comprising terpinen-4-ol.

[0010] The hydrocolloid-containing gel base according to the present invention is attached to fingernails or toenails to prevent damage to the fingernails and toenails while allowing the damaged fingernails to recover. The gel base according to the present invention includes a hydrocolloid component, thereby continuously supplying moisture and nutrients necessary for the protection of the fingernails or toenails while attached. The gel base according to the present invention may be used to protect fingernails or toenails before and after nail art or before and after applying gel stickers, but is not limited thereto.

[0011] Figure 1 illustrates an example of a layer structure of a hydrocolloid-containing gel base according to the present invention.

[0012] Figure 2 illustrates an embodiment in which a gel base according to the present invention is made in a form that can be attached to a fingernail or toenail.

[0013] Below, the present invention is described in detail with reference to embodiments shown in the attached drawings. However, the embodiments are for a clear understanding of the present invention and the present invention is not limited thereto. In the description below, components having the same drawing reference numerals in different drawings have similar functions and therefore will not be described repeatedly unless necessary for the understanding of the invention. Known components are briefly described or omitted, but they should not be understood as being excluded from the embodiments of the present invention.

[0014] Figure 1 illustrates an example of a layer structure of a hydrocolloid-containing gel base according to the present invention.

[0015] Referring to FIG. 1, the hydrocolloid-containing gel base includes a polyurethane component substrate (11); an adhesive layer (12) containing a hydrocolloid component while being bonded to the substrate (11); and a release layer (13) separable from the adhesive layer (12).

[0016] Hydrocolloid refers to a state in which ions contained in an aqueous solution corresponding to a dispersion medium are adsorbed, or the electrostatic groups present on the particle surface are dissociated and charged, and stabilized by the charge action of such electrostatic charge. Since it has hydrophilicity, it can form a hydration layer by combining with water molecules, thereby having a moisturizing function, and due to such moisturizing function, damage to fingernails or toenails can be prevented and damage treated. The substrate (11) can be made of polyurethane, polyester, polypropylene, or a similar material, and polyurethane has the advantage of being chemically resistant and having excellent elasticity. The substrate (11) can have a thickness of, for example, 10 to 50 ㎛, preferably 20 to 40 ㎛, and most preferably 30 ㎛, but is not limited thereto. The adhesive layer (12) can have adhesive properties and also have hydrocolloid properties. For example, the adhesive layer (12) may be formed from an ethylene-vinyl acetate system, a polyolefin system, a styrene block copolymer system, a polyamide system, a polyester system, a urethane system, a poly(styrene-isoprene-styrene) system, or a poly(styrene-butadiene-styrene) system, and may include a hydrophilic colloid such as protein, starch, gelatin, agar, sugar beet, or pectin, but is not limited thereto. It is advantageous for the adhesive layer (12) to have both hydrocolloid properties and adhesive properties. According to one embodiment of the present invention, the adhesive layer (12) may include a styrene / butadiene copolymer, and preferably, a hydrogenated styrene / butadiene copolymer. For example, the adhesive layer (12) may be composed of 1 to 30 wt% styrene and 30 to 99 wt% butadiene, and may be hydrogenated in the range of 90 to 99% by a catalyst such as titanium.Such a hydrogenated styrene / butadiene copolymer can have adhesive properties while functioning as a hydrocolloid. According to one embodiment of the present invention, the adhesive layer (12) can include cellulose gum. The cellulose gum can be a sodium salt of carboxymethyl cellulose and can have a viscosity of 50 to 200 cP (4% water, 25°C). The cellulose gum can be a viscosity modifier, a thickener, or an emulsion stabilizer, and the adhesive layer (12) can include 1 to 15 wt% of cellulose gum based on the total weight. According to one embodiment of the present invention, the adhesive layer (12) can include keratin, for example, can include keratin in an amount of 0.05 to 0.20 wt% based on the total weight of the adhesive layer. Keratin may have the function of providing nutrition to fingernails or toenails. In addition, the adhesive layer (12) may include horse fat, for example, the adhesive layer (12) may include horse fat in an amount of 0.01 to 0.1 wt% based on the total weight of the adhesive layer. Horse fat contains a certain amount of protein and moisture, and contains vitamin E, so it may have the function of restoring the luster of fingernails or toenails and restoring damaged areas. The adhesive layer (12) may include various ingredients having moisturizing, healing, or nutritional effects, and the present invention is not limited thereby.

[0017] According to one embodiment of the present invention, the adhesive layer (12) may include various antibacterial components, and may include a first antibacterial component made of, for example, zeolite, zinc stearate, fatty acids, or stearamide. Specifically, the first antibacterial component may be included in an amount of 0.1 to 1.0 wt% of the total weight of the adhesive layer (12). The first antibacterial component may include 5 to 50 wt% of zeolite; 1 to 20 wt% of zinc stearate; 5 to 30 wt% of fatty acids or stearamide; 0.1 to 5 wt% of water; and polypropylene or polyurethane making the total 100 wt%. In this configuration, the fatty acids and stearamide may have a weight ratio of fatty acids: stearamide = 0 to 1: 1 to 0, and polypropylene and polyurethane may also be included in the same ratio. Optionally, the adhesive layer (12) may include tea tree oil or terpinen-4-ol extracted from the leaves of Melaleuca alternifolia, which may include a second antibacterial component. The second antibacterial component may be included in an amount of 0.001 to 5 wt% of the total weight of the adhesive layer (12). The adhesive layer (12) may include various antibacterial components, and the present invention is not limited thereby.

[0018] The adhesive layer (12) can be formed with a thickness of 50 to 200 μm, and a release layer can be adhered on top of the adhesive layer (12), and the release layer (12) can be made of, for example, a PET (polyethylene terephthalate) material and can have a thickness of 10 to 200 μm, but is not limited thereto. The gel base formed by the substrate (11), the adhesive layer (12), and the release layer (13) in this way can be made in a form that can be attached to a fingernail or toenail. The gel base can be used, for example, before or after nail art or before attaching a gel sticker to a fingernail or toenail, but can remain attached during daily life. Below, a gel base made in a form that can be attached to a fingernail or toenail is described.

[0019] Figure 2 illustrates an embodiment in which a gel base according to the present invention is made in a form that can be attached to a fingernail or toenail.

[0020] Referring to FIG. 2, a plurality of gel bases (22_1 to 22_5) can be made into one set, and for example, five gel bases (22_1 to 22_5) corresponding to five fingers can be made into one set. The plurality of gel bases (22_1 to 22_5) can be detachably attached to a release film (21), and each of the plurality of gel bases (22_1 to 22_5) can be detached from the release film (21) and attached to a fingernail or toenail. When attached to a fingernail or toenail, each of the gel bases (22_1 to 22_5) can be made of a substrate layer (221) made of polyurethane, polyester, polypropylene or a similar material, and an adhesive layer (222) that attaches the substrate layer (221) to the fingernail or toenail, and the adhesive layer (222) can include a hydrocolloid component as described above. The adhesive layer (222) can be bonded to the substrate layer (221) by a hot melt method or a similar method, and can include a hydrogenated styrene / butadiene copolymer as described above. After the plurality of gel bases (22_1 to 22_5) are attached to the fingernail or toenail, they can be appropriately cut to fit the fingernail or toenail. The plurality of gel bases (22_1 to 22_5) can be made in various ways, and the present invention is not limited thereby. Embodiments according to the present invention are described below.

[0021] Example

[0022] Example 1

[0023] A gel base was formed by combining a hydrogenated styrene / butadiene copolymer with a polyurethane substrate, and the polyurethane substrate had a thickness of 30 μm, and the thickness of the hydrogenated styrene / butadiene copolymer, which serves as an adhesive layer, was 130 μm.

[0024] Example 2

[0025] In Example 1, cellulose gum was added during the process of forming the adhesive layer, and the cellulose gum was added at a ratio of 5.0 wt% with respect to the total weight of the adhesive layer.

[0026] Example 3

[0027] Keratin was added to the adhesive layer of Example 2, and the keratin was added in a weight ratio of 94.5 to 95.0:0.1 to 0.1 wt% of the hydrogenated styrene / butadiene copolymer based on the total weight of the adhesive layer.

[0028] In Example 3, horse oil was added to the adhesive layer, and the horse oil amounted to 0.05% of the total weight of the adhesive layer.

[0029] A gel base was created by adding 0.05 wt of terpinen-4-ol to the adhesive layer of Example 4.

[0030] An efficacy test was conducted on the gel bases made in Examples 1 to 4. The efficacy test was conducted by attaching the gel bases to the nails of 20 women daily and checking the condition of the nails after 15 days. The results are presented in Table 1, including the measurement of nail gloss, color change, damage recovery, and satisfaction. The scores range from 0 to 10, and a score of 5 or higher is considered effective, and the values ​​presented in Table 1 are averages.

[0031] Adhesion (gf / mm) Gloss Color Change Damage Recovery Satisfaction Example 1 27.08.27.8 9.08.7 Example 2 25.4 8.5 8.29.18.7 Example 3 25.08.9 8.5 9.39.0 Example 4 26.09.29.19.49.1

[0032] The gel base according to the present invention can be attached to fingernails or toenails to effectively protect them and repair damage.

[0033] While the present invention has been described in detail above with reference to the presented embodiments, those skilled in the art will appreciate that various modifications and variations can be made without departing from the technical spirit of the present invention. The present invention is not limited by such modifications and variations, but is instead limited by the appended claims.

[0034] The present invention can be used in various types of nail art industries.

Claims

1. Description of polyurethane components (11); An adhesive layer (12) containing a hydrocolloid component while being combined with the substrate (11); and A gel base containing a hydrocolloid comprising a heterogeneous layer (13) separable from an adhesive layer (12).

2. In claim 1, the adhesive layer (12) is a gel base containing a hydrocolloid including a styrene / butadiene copolymer.

3. In claim 1, the adhesive layer (12) is a gel base containing hydrocolloid including cellulose gum.

4. In claim 1, the adhesive layer (12) is a hydrocolloid-containing gel base containing keratin in an amount of 0.05 to 0.20 wt% relative to the total weight of the adhesive layer.

5. In claim 1, the adhesive layer (12) is a hydrocolloid-containing gel base comprising a first antibacterial component made of zeolite, zinc stearate, fatty acids or stearamide or a second antibacterial component including terpinen-4-ol.

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