Layer structure of nail, decoration method of nail, and gel nail seal

Abstract

To provide a layer structure of a nail, a decoration method of the nail, and a gel nail seal with which a damage to a nail is reduced, growing of the nail is not concerned too much, and a short-time treatment can be achieved.SOLUTION: A layer structure of a nail includes: a nail sheet 3 attached to a distal end portion of a nail 2; a base gel layer 4 formed by applying base gel onto the nail sheet 3; and a top gel layer 5 formed by applying top gel onto the base gel layer 4. It is preferable that the nail sheet 3 is formed with a curved edge portion 3d in a root portion 2a side of the nail 2.SELECTED DRAWING: Figure 5

Description

[Technical field]

[0001] The present invention relates to a layer structure of a nail, a method for decorating a nail, and a gel nail seal. [Background technology]

[0002] Gel nails, which use nail agents containing photocurable resin, are widely known as a method for decorating fingernails and toenails (for example, Patent Document 1). Gel nails are made by applying a gel-like nail agent to the nail and irradiating it with light to harden it and make it integrated with the nail. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2013-244141 A Summary of the Invention [Problem to be solved by the invention]

[0004] However, with gel nails, a base layer is applied from the base of the nail to cover the entire nail, so as the nail grows, untreated areas (areas where base gel is not applied) appear at the base of the nail, and the boundary between the treated and untreated areas becomes noticeable, creating a problem.

[0005] In addition, when applying gel nails, the natural nails are filed down to allow the gel nails to adhere, and when removing the gel nails, a process called sanding is performed to file down the surface of the gel nails so that the remover can penetrate better. Sanding can thin the natural nails, and the use of remover can remove the oils on the surface of the nail, causing the nails to turn yellow and negatively affecting the entire nail. In addition, it takes an average of 30 to 40 minutes to remove gel nails, which is time-consuming.

[0006] From this perspective, the present invention aims to provide a nail layer structure, a nail decoration method, and a gel nail seal that reduce damage to the nails, make nail growth less of a concern, and can be applied in a short time. [Means for solving the problem]

[0007] The layered structure of the nail of the present invention, which solves the above problems, is characterized by comprising a nail sheet attached to the tip of the nail, a base gel layer applied to the nail sheet, and a top gel layer applied to the base gel layer.

[0008] In addition, the nail decoration method of the present invention is characterized by comprising a sheet attachment step of attaching a nail sheet to the tip of the nail, a base gel application step of applying a base gel onto the nail sheet, a base gel hardening step of hardening the base gel, a top gel application step of applying a top gel onto the base gel, and a top gel hardening step of hardening the top gel.

[0009] According to the present invention, a nail sheet is attached to the tip of the nail, and then a base gel and a top gel are applied on top of the nail sheet, so that the area where the base gel comes into direct contact with the nail can be reduced. Also, most of the decorated part can be easily removed by simply removing the nail sheet from the nail. In other words, according to the present invention, the process of filing the natural nail by sanding is reduced, and the amount of remover used can be reduced, so that damage to the nail can be reduced. Also, while it used to take 30 to 40 minutes to remove the nail, according to the present invention, it can be shortened to about 3 to 5 minutes. In addition, the present invention is premised on the existence of a non-treatment area (a portion where base gel, etc. is not applied) at the base of the nail, and since the proportion of the non-treatment area on the entire nail is large from the beginning of treatment, even if the nail grows, the presence of the non-treatment area is less noticeable compared to the case of a conventional nail layer structure (a structure in which base gel, etc. is applied to the entire nail), in which the non-treatment area appears a few days after treatment.

[0010] Moreover, it is preferable that the nail sheet has a curved edge. It previously took an average of 85 minutes to create a smile line, but by forming a curved edge on the nail sheet, the smile line can be easily created simply by attaching the nail sheet, shortening the treatment time to around 20 to 30 minutes.

[0011] In the base gel application step, it is preferable that the base gel is also applied to the edge of the nail sheet and the edge portion of the nail.

[0012] According to the present invention, the base gel is applied all the way to the tip of the nail, which improves the appearance. In addition, the edge of the nail sheet on the tip side is more waterproof and less likely to peel off, which increases the durability of the layer structure.

[0013] The layer structure of the second nail of the present invention is characterized by comprising a base gel layer applied to the tip of the nail, a color gel layer applied on the base gel layer, and a top gel layer applied on the color gel layer.

[0014] According to the second nail structure, the area where the base gel comes into direct contact with the nail can be reduced, thereby reducing damage to the nail. Also, since the proportion of the non-treated area on the entire nail is large from the beginning of the treatment, the presence of the non-treated area is less noticeable even when the nail grows.

[0015] In addition, the gel nail seal of the present invention comprises a nail sheet to be attached to the tip of the nail, a base gel layer applied to the nail sheet, and a top gel layer applied to the base gel layer, and is characterized in that the base gel layer and the top gel layer are applied to the nail sheet in a semi-solid state in advance.

[0016] According to the present invention, since the semi-solid base gel and semi-solid top gel are applied in advance onto the nail sheet, the application work of the base gel, etc. can be omitted or simplified, and the area where the base gel, etc. directly contacts the nail can be reduced. Also, since the base gel layer and the top gel layer are in a semi-solid state, the time required for curing by irradiating them with ultraviolet light can be shortened. Effect of the Invention

[0017] According to the present invention, it is possible to provide a layered nail structure that reduces damage to nails and allows easy application, a nail decoration method, and a gel nail seal. [Brief description of the drawings]

[0018] [Figure 1] FIG. 2 is a perspective view showing a state in which a nail sheet is attached to a nail. [Diagram 2] FIG. 2 is a plan view showing the nail sheet attached to the nail. [Diagram 3] 10 is a plan view showing a state in which marks are provided on the nail and the back surface of the nail sheet. FIG. [Figure 4] FIG. 4 is a plan view showing the state after a top gel layer is formed. [Diagram 5] FIG. 2 is a cross-sectional view showing a layer structure of the nail of the present embodiment. [Figure 6] 11A and 11B are cross-sectional views showing modified examples of the layer structure of the nail. [Figure 7] FIG. 4 is a plan view showing a gel nail seal according to a second embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0019] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described with reference to the accompanying drawings. The present invention is not limited to the following embodiments.

[0020] First Embodiment In the first embodiment, as shown in Figures 1 and 2, a nail sheet 3 is attached to the tip of a nail 2, and various gels are applied onto the nail sheet 3 to decorate the nail. As shown in Figure 5, the layer structure 1 of the nail in this embodiment includes a nail sheet 3, a base gel layer 4, and a top gel layer 5.

[0021] The nail sheet 3 is formed by processing, for example, a masking tape with a base material of Japanese paper and an adhesive layer on one side, or a vinyl tape with a base material of polyvinyl chloride and an adhesive layer on one side. After processing the nail sheet 3 into a shape suitable for the nail in advance, the nail sheet 3 is fixed by contacting the adhesive surface of the nail sheet 3 with the tip of the nail 2. The nail sheet 3 is attached so that the rear end (the curved edge portion 3d side) of the nail sheet 3 is near the center position in the front-rear direction of the nail 2. The range of attachment of the nail sheet 3 on the surface side of the nail 2 is preferably 1 / 2 or less of the total length of the nail 2 from the tip of the nail (1 / 2 or less of the surface area of ​​the nail 2), more preferably 1 / 3 or less of the length of the nail 2 from the tip of the nail (1 / 3 or less of the surface area of ​​the nail 2), and even more preferably 1 / 4 or less of the total length of the nail 2 from the tip of the nail (1 / 4 or less of the surface area of ​​the nail 2).

[0022] The nail sheet 3 has a tip edge 3a, side edges 3b, 3c, and a curved edge 3d. After the tip edge 3a is attached to the tip of the nail 2, the shape is adjusted by cutting or bending with a file so that the tip has a shape that is approximately the same as the shape of the nail tip. The width dimension of the nail sheet 3 (the dimension from one side edge 3b to the other side edge 3c) is set in consideration of the size and shape of the nail. The width dimension of the nail sheet 3 is, for example, smaller than the overall width of the nail 2 so that a gap of about 1 mm is formed between the side edges 3b, 3c and the side edges of the nail 2. When multiple types of nail sheets 3 with different dimensions are produced in advance, for example, multiple types of nail sheets 3 with different dimensions in increments of 0.1 to 0.3 mm may be attached to a mount such as a release paper. In this way, the nail sheet 3 corresponding to the size of the nail to be treated is peeled off from the mount and simply attached to the tip of the nail 2, so that the tip of the nail 2 can be covered without excess or deficiency. The nail sheet 3 has a thickness of, for example, 0.05 mm to 0.15 mm. The curved edge 3d is a portion that presents an arc-shaped curve.

[0023] The color of the nail sheet 3 may be a color such as white, or may be colorless and transparent. Patterns, letters, and other decorations may be applied to the surface of the nail sheet 3. In addition, the nail sheet 3 may be, for example, a semi-transparent sheet with decoration, a transparent sheet with decoration, or an opaque sheet with decoration.

[0024] The base gel layer 4 and the top gel layer 5 are formed by applying and curing a gel nail agent that contains an acrylic resin or the like and is cured by irradiation with light.

[0025] Next, a method for decorating a nail using the nail sheet 3 will be described with reference to Fig. 1 to Fig. 5. In this embodiment, a bonding step, a base gel application step, a base gel curing step, a top gel application step, and a top gel curing step are performed.

[0026] In the pasting step, the nail sheet 3 cut into a predetermined shape as shown in FIG. 2 is pasted on the nail 2, and the shape of the nail sheet 3 is adjusted. When pasting, a mark 3f is added to the center of the curved edge 3d in the left-right direction to clarify the center position. The mark 3f may be printed or engraved on the surface of the nail sheet 3 in advance, or may be written with a writing implement during the treatment. In addition, a mark 2c indicating the center of the left-right direction of the nail 2 is written on the surface of the nail 2. The nail sheet 3 is arranged so that the mark 3f of the nail sheet 3 and the mark 2c of the nail 2 overlap, so that the nail sheet 3 can be easily pasted symmetrically. The mark 3f may be a "line" or a "dot". When the mark 3f is a "dot", it is preferable to arrange a plurality of marks 3f in the front-rear direction at intervals of 1 to 2 mm. By lining up the dot marks 3f at a predetermined interval in the front-to-back direction, it becomes easy to align the nail 2 in the front-to-back direction, and it becomes easier to standardize the front-to-back length of the nail sheet 3 for all fingers.

[0027] The mark 3f may be printed or engraved in advance on the back surface of the nail sheet 3, as shown in Fig. 3. When the mark 3f is provided on the back surface of the nail sheet 3, it is preferable to provide the mark 3f at the center in the left-right direction of the tip edge portion 3a of the nail sheet 3. In this case, by writing the mark 2c on the back surface of the tip side (edge ​​portion 2b side) of the nail 2, the nail sheet 3 can be positioned so that the mark 3f of the nail sheet 3 and the mark 2c of the nail 2 overlap. If the mark 3f is provided on the back surface of the nail sheet 3, the mark 3f is less noticeable when the sheet is attached to the nail 2, and therefore the finish of the treatment is less likely to be affected. Also, if the mark 2c is provided on the back surface of the nail 2, there is no need to erase the mark 2c after the nail sheet 3 is attached, and therefore the time required for the treatment can be shortened.

[0028] The excess part of the nail sheet 3 (the part protruding from the tip of the nail 2) is filed off using a special file called an emery board. Note that the file is filed from the front side of the nail 2 to the back side. In this way, the nail sheet 3 is attached to the surface of the nail 2 with the excess part removed. Note that it is preferable that the nail sheet 3 is attached only to the surface of the nail 2 and not to the edge part 2b of the nail 2 (the thick part of the nail).

[0029] The base gel application process is a process of applying base gel from the top of the nail sheet 3. As shown in Figs. 4 and 5, the base gel is applied so as to cover the top of the nail sheet 3, and at the edge portions (side edges 3b, 3c, curved edge 3d) of the nail sheet 3, the base gel is applied so as to cover the edge portions (thickness portions) of the nail sheet 3, and is applied so as to extend about 1 mm beyond the nail sheet 3. At the side edges 3b, 3c of the nail sheet 3, it is preferable to apply the base gel up to the side of the nail 2. At the tip portion of the nail 2, it is preferable to apply the base gel also to the edge portion (thickness portion) of the nail sheet 3 and the edge portion 2b (thickness portion of the nail) of the nail 2. The range to which the base gel is applied may be limited to the tip edge of the nail 2. The base gel application step is preferably performed with the nail 2 in an erected state (with the surface of the nail 2 aligned vertically). Treatment only on the tip of the nail 2 was previously avoided because it could accentuate the difference in level with the non-treated area, but when the base gel is applied with the nail 2 in an erected state, the base gel flows downward due to the action of gravity, reducing the thickness of the base gel layer 4 and minimizing the difference in level with the non-treated area.

[0030] The base gel curing step is a step in which the base gel is irradiated with light such as UV (ultraviolet) light to cure the applied base gel and form the base gel layer 4 as shown in Fig. 5. In this embodiment, the base gel application step and the base gel curing step are each performed twice, and two layers of base gel are stacked to form the base gel layer 4. The base gel application step and the base gel curing step may each be performed once, or three or more times.

[0031] After the base gel curing step is completed, the top gel application step is performed. The top gel application step is a step of applying the top gel from above the base gel layer 4. The top gel is applied so as to cover the base gel layer 4. The top gel curing step is a step of irradiating the top gel with light such as UV (ultraviolet) light to cure the applied top gel and form the top gel layer 5. In this embodiment, the top gel application step and the top gel curing step are each performed twice, and the top gel layer 5 is formed by stacking two layers of top gel. Finally, the top gel layer 5 is dried to complete the layer structure 1 of the nail. The top gel application step and the top gel curing step may be performed once each, or three or more times. It is preferable that the top gel application step is also performed with the nail 2 in an upright position (with the surface of the nail 2 aligned vertically).

[0032] According to the above-described nail layer structure 1, the nail sheet 3 is attached to the tip of the nail 2, and the base gel layer 4 and top gel layer 5 are applied on top of it. This eliminates the need for preparatory work of filing the natural nail to fix the gel nail, reduces the area where the base gel comes into direct contact with the nail 2, and allows most of the decorated portion to be easily removed simply by removing the nail sheet 3 from the nail 2. In other words, according to the nail layer structure 1, the process of filing the natural nail by sanding is reduced, and it is possible to remove the nail while reducing the amount of remover used, thereby reducing damage to the nail 2.

[0033] Conventionally, it took about 85 minutes on average to form a smile line on a nail 2. However, according to the nail layer structure 1, the nail sheet 3 has a curved edge 3d formed therein, so that the smile line can be easily formed by simply attaching the nail sheet 3. Therefore, the treatment time can be shortened to about 20 to 30 minutes.

[0034] Furthermore, by using a masking tape based on paper with a finely uneven surface as the nail sheet 3, the nail sheet 3 and the nail 2 can be easily adhered to each other and can last longer.

[0035] In addition, the width dimension of the nail sheet 3 is formed slightly narrower than the width of the nail 2. In other words, when the nail sheet 3 is attached to the nail 2, a gap is formed between the side edges 3b, 3c and the side edges of the nail 2, exposing the side edges of the nail 2. By applying a base gel and a top gel to this gap, waterproofing can be improved and the durability of the layer structure 1 of the nail can be improved.

[0036] In addition, since the nail sheet 3 can be selected in advance in a desired color and pattern, the step of applying color gel can be omitted, and the treatment time can be shortened. When utilizing the decoration (color, pattern, lettering, etc.) on the surface of the nail sheet 3, it is preferable that the base gel layer 4 and the top gel layer 5 are made of a transparent or semi-transparent resin so that they can be seen through the base gel layer 4 and the top gel layer 5.

[0037] In the base gel application process, the base gel is applied from the tip edge of the nail sheet 3 to the edge portion 2b. This allows the base gel to be applied all the way to the tip of the nail, improving the aesthetic appearance. In addition, the edge of the nail sheet 3 on the tip side is more waterproof, and the edge of the nail sheet 3 on the tip side is less likely to peel off, improving the durability of the layer structure 1 of the nail.

[0038] (Modification) FIG. 6 shows a modified example of the nail layer structure 1. The nail layer structure 10 includes a base gel layer 4, a top gel layer 5, and a color gel layer 6. This modified example is different in that the nail sheet 3 is not attached. In other words, the nail sheet 3 is omitted and instead the base gel is applied to the nail 2 to form the base gel layer 4. In addition, the color gel layer 6 is formed on the base gel layer 4. According to the nail layer structure 10, the area where the base gel comes into direct contact with the nail 2 can be limited to the tip of the nail, so damage to the nail 2 can be reduced. Furthermore, since the time and effort required for preparing the nail sheet 3 in advance can be eliminated, nail decoration can be easily performed.

[0039] Second Embodiment Next, a gel nail seal according to a second embodiment of the present invention will be described with reference to Fig. 7. The gel nail seal 1A differs from the first embodiment in that the base gel layer 4 and the top gel layer 5 are applied to the surface of the nail sheet 3 in advance, and the gel nail seal 1A is detachably arranged on the surface of the sheet 20. As shown in Fig. 7, a plurality of gel nail seals 1A are arranged side by side on the surface of the sheet 20. The layer structure and shape of the gel nail seal 1A are the same as those of the first embodiment, and therefore will not be described.

[0040] The gel nail sticker 1A is attached so that the rear end (the side of the curved edge 3d) of the gel nail sticker 1A is near the middle position in the front-rear direction of the nail 2. In other words, the gel nail sticker 1A is attached only to the tip portion of the nail 2. The range where the gel nail sticker 1A is attached on the surface side of the nail 2 is preferably 1 / 2 or less of the total length of the nail 2 from the tip of the nail (1 / 2 or less of the surface area of ​​the nail 2), more preferably 1 / 3 or less of the length of the nail 2 from the tip of the nail (1 / 3 or less of the surface area of ​​the nail 2), and even more preferably 1 / 4 or less of the total length of the nail 2 from the tip of the nail (1 / 4 or less of the surface area of ​​the nail 2).

[0041] The sheet 20 is a resin sheet on one side of which a plurality of gel nail stickers 1A are arranged. A plurality of cut lines 21 are displayed on the sheet 20 along the short side at positions corresponding to the arranged gel nail stickers 1A. The cut lines 21 are lines that serve as a mark for the width dimension of the nail sheet 3. The user can adjust the gel nail sticker 1A to an appropriate width dimension according to the size of the nail by cutting the gel nail sticker 1A along the cut lines 21 with scissors or a cutter, and peel it off from the sheet 20. Note that instead of the cut lines 21, dots, figures, symbols, color coding, etc. may be displayed as marks. In addition, although the gel nail stickers 1A of this embodiment are all formed with a uniform width, gel nail stickers 1A of various widths may be prepared in advance. In that case, the mark for the width dimension of the gel nail sticker 1A (cut lines 21) may be omitted.

[0042] In this embodiment, the base gel layer 4 and the top gel layer 5 are made of a resin that is cured by irradiation with ultraviolet light, and are in a semi-solid state. The semi-solid state is, for example, a gel state. When the gel nail seal 1A is adhered to the nail 2, the gel nail seal 1A is peeled off from the sheet 20, attached to the nail 2, and cured into a solid state by irradiation with ultraviolet light. In addition, when making use of the decoration (color, pattern, lettering, etc.) on the surface of the nail sheet 3, it is preferable that the base gel layer 4 and the top gel layer 5 are made of a transparent or translucent resin so that they can be seen through the base gel layer 4 and the top gel layer 5.

[0043] The base gel layer 4 and the top gel layer 5 are applied so as to cover the upper part of the nail sheet 3, and at the edge parts (side edge parts 3b, 3c, curved edge part 3d) of the nail sheet 3, they are applied so as to cover the edge parts (thickness parts) of the nail sheet 3, and are applied so as to protrude about 1 mm from the nail sheet 3. In this embodiment, the base gel layer 4 and the top gel layer 5 are attached to the sheet 20 in a state where they are applied so as to protrude from the nail sheet 3, but the base gel layer 4 and the top gel layer 5 may be applied so as not to protrude from the nail sheet 3.

[0044] Once you get gel nails done, you feel motivated when you see your nails and fingertips, and you naturally feel more confident. However, to keep your gel nails in good condition, you need to have them maintained frequently, generally about once every three weeks, about 17 times a year. If you get gel nails done at a salon, the problem is that it takes time and money, with an average treatment taking one and a half to two hours, an average treatment costing 5,000 to 15,000 yen, and annual nail costs ranging from 85,000 to 255,000 yen.

[0045] According to the gel nail seal 1A described above, the base gel layer 4 and the top gel layer 5 are in a soft semi-solid state, and when they are applied to the nail and irradiated with ultraviolet light, they are cured into a solid state while maintaining the shape of the nail. Also, since the gel nail seal 1A already includes the nail sheet 3, the base gel layer 4, and the top gel layer 5, the treatment is completed only by the process of irradiating ultraviolet light, and nail decoration can be performed inexpensively and in a short time.

[0046] Furthermore, since the base gel layer 4 and the top gel layer 5 are in a semi-solid state, they can be applied to the curved surface of the nail.

[0047] In this embodiment, the top gel layer 5 is applied on top, but this is not limited to this. For example, a protective sheet may be attached to the surface of the top gel layer 5. This makes it possible to prevent oils from the hands and the like from adhering to the gel nail seal 1A when the gel nail seal 1A is applied.

[0048] Although the embodiment of the present invention has been described above, appropriate design changes are possible within the scope of the present invention. In this embodiment, the base gel layer 4 and the top gel layer 5 are formed using a photocurable gel nail material, but they may also be formed by applying a polish coat material or the like.

[0049] Also, as in the second embodiment, a plurality of nail sheets 3 may be arranged on the sheet 20. In other words, a configuration may be adopted in which a plurality of nail sheets 3 are arranged on the sheet 20 in a state in which the base gel layer 4 and the top gel layer 5 are not yet applied. Also, if marks (such as the cutting line 21) that serve as a guide for the size of the nail sheet 3 are displayed on the sheet 20, the width dimension of the nail sheet 3 can be easily adjusted by simply cutting the nail sheet 3 along the marks. [Explanation of symbols]

[0050] 1. Nail layer structure 1A Gel Nail Sticker 2 Claws 2b Edge section 3 Nail Sheet 3a Tip edge 3b Side edge 3c Side edge 3d curved edge 4 Base gel layer 5 Top gel layer 6 Color Gel Layer

Claims

1. A nail sheet attached to the tip of the nail, A base gel layer applied on the nail sheet; A layered structure of a nail, comprising: a top gel layer applied on the base gel layer.

2. The layer structure of a nail according to claim 1 , wherein the nail sheet has a curved edge.

3. A base gel layer applied to the tip of the nail, A color gel layer applied on the base gel layer; A top gel layer is applied on the color gel layer.

4. a sheet attachment step of attaching a nail sheet to the tip of the nail; A base gel application step of applying a base gel onto the nail sheet; A base gel curing step of curing the base gel; a top gel application step of applying a top gel onto the base gel; and a top gel curing step of curing the top gel.

5. 5. The method for decorating a nail according to claim 4, wherein in the base gel applying step, the base gel is also applied to the edge of the nail sheet and the edge of the nail.

6. A nail sheet that can be attached to the tip of the nail, A base gel layer applied on the nail sheet; a top gel layer applied on the base gel layer; This gel nail seal is characterized in that the base gel layer and the top gel layer are applied in a semi-solid state to the nail sheet in advance.

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