Nail layer structure

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 is a nail layer structure To make Regarding. [Background technology]

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

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2013-244141 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, an untreated area (an area where base gel is not applied) appears at the base of the nail, and the boundary between the treated and untreated areas becomes noticeable, which creates a problem.

[0005] Furthermore, 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 remove the surface of the gel nails so that the remover can penetrate better. Sanding can thin the natural nails, and using remover can remove the oils on the surface of the nail, causing the nail to turn yellow and negatively affecting the entire nail. Furthermore, removing gel nails takes an average of 30 to 40 minutes, which is time-consuming.

[0006] From this viewpoint, the present invention provides a layer structure for nails that reduces damage to nails, prevents nail growth, and allows application in a short time. Construction The objective is to provide [Means for solving the problem]

[0007] The layer structure of the nail of the present invention that solves the above problem comprises a nail sheet attached to the tip of the nail, a base gel layer applied on the nail sheet, and a top gel layer applied on the base gel layer, and the nail sheet is attached so that the rear end of the nail sheet is located near the middle position in the front-rear direction of the nail. A mark indicating the center position of the nail sheet in the left-right direction is provided on the back surface of the nail sheet, and the mark is arranged at intervals in the front-rear direction. It is characterized by:

[0009] According to the present invention, a nail sheet is applied to the tip of the nail, and then base gel and top gel are applied on top of it, thereby reducing the area of ​​the base gel that comes into direct contact with the nail. Furthermore, most of the decorative portion can be easily removed simply by removing the nail sheet from the nail. In other words, according to the present invention, the process of sanding the natural nail can be reduced, and the amount of remover used can be reduced, thereby reducing damage to the nail. Furthermore, while it previously took 30 to 40 minutes to remove nail polish, the present invention can shorten this time to approximately 3 to 5 minutes. Furthermore, the present invention is based on the premise that there is an untreated area (a portion where base gel, etc. is not applied) at the base of the nail, and since the proportion of the untreated area to the entire nail is large from the beginning of treatment, even if the nail grows, the presence of the untreated 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 untreated area appears a few days after treatment. [Effects of the Invention]

[0017] According to the present invention, a layer structure of a nail that reduces damage to the nail and allows easy application is provided. Construction We can provide it. [Brief explanation of the drawings]

[0018] [Figure 1] FIG. 2 is a perspective view showing a state when a nail sheet is attached to a nail. [Figure 2] FIG. 2 is a plan view showing a state in which the nail sheet is attached to the nail. [Figure 3] FIG. 10 is a plan view showing the state in which marks are provided on the nail and the back surface of the nail sheet. [Figure 4] FIG. 2 is a plan view showing a state in which a top gel layer has been formed. [Figure 5] FIG. 2 is a cross-sectional view showing the layer structure of the nail of the present embodiment. [Figure 6] FIG. 10 is a cross-sectional view showing a modified example of the layer structure of the nail. [Figure 7] FIG. 10 is a plan view showing a gel nail seal according to a second embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0019] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below 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 of this embodiment includes the 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, masking tape with a base material of Japanese paper and an adhesive layer on one side, or 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, the adhesive surface of the nail sheet 3 is brought into contact with the tip of the nail 2 to fix the nail sheet 3. The nail sheet 3 is attached so that the rear end (the side of the curved edge 3d) of the nail sheet 3 is near the midpoint in the front-to-rear direction of the nail 2. The area where the nail sheet 3 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).

[0022] The nail sheet 3 has a tip edge 3a, side edges 3b and 3c, and a curved edge 3d. After attaching the tip edge 3a to the tip of the nail 2, the shape is adjusted by cutting or bending it with a file so that it roughly matches 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 taking into consideration the size and shape of the nail. For example, the width dimension of the nail sheet 3 is smaller than the overall width of the nail 2 so that a gap of about 1 mm is formed between the side edges 3b and 3c and the side edges of the nail 2. When multiple types of nail sheets 3 with different sizes are produced in advance, it is recommended to attach multiple types of nail sheets 3 with different sizes in increments of 0.1 to 0.3 mm to a backing such as release paper. In this way, simply peeling the nail sheet 3 corresponding to the size of the nail to be treated from the backing and attaching it to the tip of the nail 2 ensures that the tip of the nail 2 is covered properly. 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 nail sheet 3 may be colored, such as white, or may be colorless and transparent. The surface of the nail sheet 3 may be decorated with patterns, letters, or other decorations. In addition, the nail sheet 3 may be, for example, semi-transparent with decorations, transparent with decorations, or opaque with decorations.

[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 that hardens when irradiated with light.

[0025] Next, a method for decorating nails using the nail sheet 3 will be described with reference to Figures 1 to 5. In this embodiment, the method includes an adhering step, a base gel application step, a base gel curing step, a top gel application step, and a top gel curing step.

[0026] The pasting process is a process of pasting a nail sheet 3 cut into a predetermined shape onto a nail 2 as shown in FIG. 2 and shaping the nail sheet 3. When pasting, the center position can be clearly identified by marking a mark 3f at the center in the left-right direction of the curved edge 3d. 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 application. In addition, a mark 2c indicating the center in the left-right direction of the nail 2 is also written on the surface of the nail 2. By positioning the nail sheet 3 so that the mark 3f on the nail sheet 3 overlaps with the mark 2c on the nail 2, 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 line up multiple marks 3f in the front-to-back direction at intervals of 1 to 2 mm. By lining up the dot marks 3f in the front-to-back direction at a predetermined interval, it becomes easy to align the nails 2 in the front-to-back direction, and it becomes easier to unify the front-to-back lengths of the nail sheets 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 leading edge portion 3a of the nail sheet 3. In this case, by writing the mark 2c on the back surface of the leading end side (edge ​​portion 2b side) of the nail 2, the nail sheet 3 can be positioned so that the mark 3f on the nail sheet 3 and the mark 2c on the nail 2 overlap. If the mark 3f is provided on the back surface of the nail sheet 3, the mark 3f will be less noticeable when it is attached to the nail 2, and therefore the finish of the treatment will be less affected. Also, if the mark 2c is provided on the back surface of the nail 2, there will be 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 that protrudes from the tip of the nail 2) is filed off using a special file called a file or emery board. When doing so, the file is applied from the front surface of the nail 2 to the back surface. This allows the nail sheet 3 to be attached to the surface of the nail 2 with the excess part removed. 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 above the nail sheet 3. As shown in Figures 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. Note that 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 upright position (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 upright position, the base gel flows downward due to 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 a 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 process is completed, the top gel application process is performed. The top gel application process is a process of applying a top gel on top of the base gel layer 4. The top gel is applied so as to cover the base gel layer 4. The top gel curing process is a process of irradiating the top gel with light such as UV (ultraviolet) light to harden the applied top gel and form the top gel layer 5. In this embodiment, the top gel application process and the top gel curing process are each performed twice, and two layers of top gel are stacked to form the top gel layer 5. Finally, the top gel layer 5 is dried, thereby completing the nail layer structure 1. The top gel application process and the top gel curing process may each be performed once, or three or more times. It is preferable that the top gel application process is also performed with the nail 2 in an upright position (with the surface of the nail 2 aligned vertically).

[0032] According to the nail layer structure 1 described above, the nail sheet 3 is attached to the tip of the nail 2, and then 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 polish while using less remover, thereby reducing damage to the nail 2.

[0033] Conventionally, it took an average of about 85 minutes 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 the smile line can be easily formed by simply attaching the nail sheet 3. As a result, the treatment time can be reduced to about 20 to 30 minutes.

[0034] Furthermore, by using masking tape, which has a base material of paper with a finely textured 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] Furthermore, the width 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 edge portions 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] Furthermore, since the nail sheet 3 can be pre-selected in a desired color and pattern, the process of applying color gel can be omitted, thereby shortening the treatment time. 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 translucent resin so that the decoration 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, resulting in a beautiful appearance. In addition, the waterproofing of the tip-side edge of the nail sheet 3 is improved, and the tip-side edge of the nail sheet 3 is less likely to peel off, thereby improving the durability of the layer structure 1 of the nail.

[0038] (Variation) 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 differs in that the nail sheet 3 is not attached. In other words, the nail sheet 3 is omitted, and instead, the base gel layer 4 is formed by applying a base gel to the nail 2. The color gel layer 6 is also 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, thereby reducing damage to the nail 2. Furthermore, since the time and effort required to prepare the nail sheet 3 in advance can be eliminated, nail decoration can be easily performed.

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

[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 midpoint in the front-to-rear direction of the nail 2. In other words, the gel nail sticker 1A is attached only to the tip of the nail 2. The area on the surface side of the nail 2 where the gel nail sticker 1A is attached 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 multiple gel nail stickers 1A are arranged. The sheet 20 has multiple perforation lines 21 aligned along its width, corresponding to the positions of the arranged gel nail stickers 1A. The perforation lines 21 mark the width of the nail sheet 3. The user can adjust the width of the gel nail sticker 1A to the appropriate size for their nail by cutting the gel nail sticker 1A along the perforation lines 21 with scissors or a cutter, and then peel it off the sheet 20. Instead of perforation lines 21, dots, shapes, symbols, color coding, etc. may be used as markers. Although the gel nail stickers 1A in this embodiment are all formed with a uniform width, gel nail stickers 1A of various widths may be prepared in advance. In this case, the width markers (perforation lines 21) for the gel nail stickers 1A may be omitted.

[0042] In this embodiment, the base gel layer 4 and the top gel layer 5 are made of a resin that hardens when exposed to ultraviolet light and are in a semi-solid state. The semi-solid state is, for example, a gel state. When adhering the gel nail sticker 1A to the nail 2, the gel nail sticker 1A is peeled off from the sheet 20, attached to the nail 2, and then hardened to a solid state by exposure to ultraviolet light. In addition, when utilizing the decorations (colors, patterns, letters, etc.) on the surface of the nail sheet 3, it is preferable that the base gel layer 4 and the top gel layer 5 be 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 portions (side edge portions 3b, 3c, curved edge portion 3d) of the nail sheet 3, they are applied so as to cover the edge portions (thickness portions) 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 also be applied so as not to protrude from the nail sheet 3.

[0044] Once you get gel nails, looking at your nails and fingertips can boost your motivation and naturally boost your confidence. However, to keep your gel nails in good condition, you need to have them maintained frequently, generally about once every three weeks, or about 17 times a year. Getting gel nails done at a salon can be time-consuming and expensive, with each treatment taking an average of one and a half to two hours and costing between 5,000 and 15,000 yen, for a total annual cost of 85,000 to 255,000 yen.

[0045] According to the gel nail seal 1A described above, the base gel layer 4 and 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 harden into a solid state while maintaining the shape of the nail. Also, because the gel nail seal 1A already includes the nail sheet 3, base gel layer 4, and top gel layer 5, the process can be completed simply by irradiating with ultraviolet light, allowing for inexpensive and quick nail decoration.

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

[0047] In this embodiment, a 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 prevents oils from the hands and the like from adhering to the gel nail sticker 1A when the gel nail sticker 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 photo-curable gel nail material, but they may also be formed by applying a polish coating material or the like.

[0049] Furthermore, as in the second embodiment, multiple nail sheets 3 may be arranged on the sheet 20. In other words, multiple nail sheets 3 may be arranged on the sheet 20 without the base gel layer 4 and the top gel layer 5 being applied. Furthermore, if marks (such as cutting lines 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 Layer structure of nails 1A Gel Nail Sticker 2 claws 2b Edge 3 Nail sheets 3a Tip edge 3b Side edge 3c Side edge 3d curved edge 4 Base gel layer 5 Top gel layer 6 color gel layers

Claims

1. A nail sheet 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, The nail sheet is attached so that the rear end of the nail sheet is located near the center position of the nail in the front-rear direction, A mark indicating the center position of the nail sheet in the left-right direction is provided on the back surface of the nail sheet, A layered structure of a nail, characterized in that the marks are arranged at intervals in the front-to-back direction.

2. The layer structure of a nail according to claim 1 , wherein the markings are dots.

Images