KR102292158B1 - Nail sticker and method for manufacturing the same - Google Patents

Abstract

A method for manufacturing a nail sticker according to an embodiment of the present invention includes the following steps of: preparing a base sheet including release paper (110) divided into an effective area (AA) and an ineffective area (UA), an adhesive layer (120) on the release paper (110) and a protective layer (130) on the adhesive layer (120); forming a printed layer (200) on the base sheet; separating the adhesive layer (120), the protective layer (130) and the printed layer (200) of the effective area (AA) on the release paper (110) by cutting the adhesive layer (120), the protective layer (130) and the printed layer (200) disposed on the release paper (110); removing the adhesive layer (120), the protective layer (130), and the printed layer (200) on the ineffective area (UA) of the release paper (110); applying a coating solution on the effective coating area corresponding to the effective area (AA) of the release paper (110); and forming a top coating layer (300) on the effective coating area by curing the applied coating solution.

Description

Nail sticker and its manufacturing method {NAIL STICKER AND METHOD FOR MANUFACTURING THE SAME}

The present invention relates to a nail sticker and a method for manufacturing the same.

As one of the ways of expressing physical beauty that humans pursue, the beauty industry is being subdivided at the same time as the development is accelerating. In particular, with the rapid market expansion after the 20th century, the beauty industry began to become popular among the general public. Among the beauty industry, nail art is an essential element of expressive art for the body regardless of age or gender, and has been rapidly developing in recent years.

Originally, as a field of beauty art, nail art is one of the methods for beautifying the human body, and the length, shape, or color of artificial nails has been expressed by reflecting the changes and values of the culture of the times.

Conventional nail art mainly consists of applying pigments such as nail polish of various colors to nails or toenails. However, this method of applying liquid pigments not only takes a long time to dry after applying the pigment, but also provides various designs. It caused inconvenience to the user while pursuing it.

As another type of nail art, dry nail stickers have been developed to overcome the problems of liquid application such as nail polish or UV gel, but these are mostly films made of the same raw material as nail polish, cut to fit the size of the nail after attachment, I have a problem with trimming. Even if it is well trimmed, it has a great discomfort due to the hard and heavy feeling of heterogeneity.

There are also artificial nails that are highly durable, but they lack flexibility and elasticity. Therefore, the wearability and adhesion properties are poor, and the esthetic is deteriorated because it cannot be naturally seated on the nail, and the artificial nail completely falls off the nail.

Due to this problem, recently, semi-curing UV gel nail, which includes UV curing resin in pigment, is applied to nails or toenails, and then forcibly cured using a UV lamp, has been in the spotlight.

In the case of semi-cured UV gel nail sticker, it is a semi-dry type, and after the user attaches the gel nail sticker, it is further cured through an LED lamp to be seated on the nail. At this time, users with low professionalism frequently harden the semi-cured UV gel nail sticker excessively. Therefore, there is a serious problem of damage to the nails when removing the gel nail sticker.

In addition, since the existing semi-cured UV gel nail sticker can be cured even by natural light, additional packaging that is not exposed to light is required, thereby increasing the product cost.

In addition, in the case of semi-cured UV gel, since it is vulnerable to external impact, an additional film to protect the gel nail sticker is required to prevent the shape of the gel nail sticker from being deformed. There are problems such as packaging the product.

Prior art 1 relates to artificial nails, characterized in that a separate volume layer is formed in the lower part to give volume to the artificial nails.

However, in the case of Prior Art 1, a volume layer having a curve formed in a narrower area than a sticker is formed, and a printing layer and design elements (beads, artificial jewelry, glitter, powder, etc.) are formed on the volume layer having curves on the volume layer. In this case, it is difficult to evenly form a printed layer and a design layer, so that it is difficult to manufacture a sticker of a certain design.

In addition, when artificial nails are manufactured as in Prior Art 1, the entire surface of the nail is attached through an adhesive layer. The problem arises when the nails are damaged.

Korean Patent Registration Announcement 10-2171324 B1　 (2020.10.22)

The present invention has been devised to solve the above problems, and an object of the present invention is to provide a nail sticker having a natural curve corresponding to the nail and a method for manufacturing the same.

Another object of the present invention is to provide a nail sticker that is easy to use, sits softly on the nail, and minimizes damage to the nail and a method for manufacturing the same.

A method for manufacturing a nail sticker according to an embodiment of the present invention includes: preparing a base sheet including a release paper divided into an effective area and an ineffective area, an adhesive layer on the release paper, and a protective layer on the adhesive layer; forming a printed layer on the base sheet; separating the adhesive layer, the protective layer and the printed layer in an effective area on the release paper by cutting the adhesive layer, the protective layer and the printed layer disposed on the release paper; removing the adhesive layer, the protective layer and the printing layer on the ineffective area of the release paper; applying a coating solution on an effective coating area corresponding to the effective area of the release paper; and curing the applied coating solution to form a top coating layer on the effective coating area.

In this case, the forming of the printed layer on the base sheet may include forming the printed layer on the upper surface of the protective layer by lithographic printing of an ink liquid having a color or a pattern.

In addition, the step of applying the coating solution on the effective coating area corresponding to the effective area of the release paper includes applying the coating solution to the effective area and the effective coating area including at least one offset area among upper, lower, left, and right of the effective area. may include steps.

In addition, the step of curing the applied coating solution to form a top coating layer on the effective coating area includes: forming the top coating layer on the upper surface of the printed layer; forming the top coating layer on the upper surface of the offset area of the release paper; , It may include the step of forming the top coating layer on the side of the printed layer.

In addition, the step of curing the applied coating solution to form the top coating layer on the effective coating area includes applying the coating solution a plurality of times and curing it so that the top coating layer becomes relatively lower in height from the center of the effective area to the outside. It may include the step of forming.

In addition, the step of curing the applied coating solution to form the top coating layer on the effective coating area may include photocuring the coating solution including a photoinitiator to form the fully cured top coating layer.

A nail sticker according to an embodiment of the present invention includes: a release paper divided into an effective area and an ineffective area; an adhesive layer disposed on the effective area of the release paper; a protective layer disposed on the adhesive layer; a printed layer disposed on the protective layer; and a top coating layer disposed on the printing layer, wherein the top coating layer is formed on an offset region of at least one of top, bottom, left, and right of the effective region.

The nail sticker according to the embodiment of the present invention is formed to have a natural curvature and has a sense of volume, so that aesthetics can be improved.

In addition, the nail sticker according to the embodiment of the present invention is formed of a fully cured top coating layer, is strong against external impact, and does not adhere to the wrapping paper, so a separate film or product packaging to protect the top coating layer is not required. There is this.

In addition, in the nail sticker according to the embodiment of the present invention, the user can easily attach the nail sticker with the fully cured top coating layer exposed to the nail, and the top coating layer formed in the offset region is directly attached to the nail to naturally attach the top surface of the nail. may be arranged to cover the

In addition, in the nail sticker according to the embodiment of the present invention, when the user additionally irradiates light to the fully cured top coating layer, the top coating layer is gradually over-cured according to the light irradiation time, and the hardness gradually decreases. It can be increased, and through this, the strength of the nail sticker can also be adjusted.

In addition, the over-cured top coating layer attached to the nail has a low degree of adhesion to the nail, so it is possible to minimize damage to the nail during removal while providing a comfortable feeling when attached. In particular, the top coating layer directly attached to the nail in the offset region through over-cure can be naturally separated from the nail even after being attached for a long time, thereby minimizing damage to the nail.

In addition, when the nail sticker according to an embodiment of the present invention is removed from the nail, the user first applies a force to the top coating layer in the offset region to remove it. Since the adhesion rate is low, it is easily removed from the nail and the adhesive layer next to the top coating layer naturally comes off the nail, which has the advantage of minimizing damage to the nail.

1 shows a nail sticker manufactured according to an embodiment of the present invention.
2 is a flowchart of a method for manufacturing a nail sticker according to an embodiment of the present invention.
3 is a process diagram of manufacturing a nail sticker according to an embodiment of the present invention.
Figure 4 shows a state of removing the layers of the ineffective area on the release paper after the cutting operation according to an embodiment of the present invention.
5A shows a state of forming a top coating layer according to an embodiment of the present invention, and FIG. 5B shows a state of forming a top coating layer according to another embodiment of the present invention.
6 shows a state in which a top coating layer is formed on each of a plurality of nail stickers according to an embodiment of the present invention.
7 shows various examples of a top coating layer of a nail sticker according to an embodiment of the present invention.

Since the present invention can apply various transformations and can have various embodiments, specific embodiments are illustrated in the drawings and described in detail in the detailed description. Effects and features of the present invention, and a method of achieving them, will become apparent with reference to the embodiments described below in detail in conjunction with the drawings. However, the present invention is not limited to the embodiments disclosed below and may be implemented in various forms. In the following embodiments, terms such as first, second, etc. are used for the purpose of distinguishing one component from another, not in a limiting sense. Also, the singular expression includes the plural expression unless the context clearly dictates otherwise. In addition, terms such as include or have means that the features or components described in the specification are present, and do not preclude the possibility that one or more other features or components will be added. In addition, in the drawings, the size of the components may be exaggerated or reduced for convenience of description. For example, since the size and thickness of each component shown in the drawings are arbitrarily indicated for convenience of description, the present invention is not necessarily limited to the illustrated bar.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings, and when described with reference to the drawings, the same or corresponding components are given the same reference numerals, and the overlapping description thereof will be omitted. .

1 shows a nail sticker manufactured according to an embodiment of the present invention. 2 is a flowchart of a method for manufacturing a nail sticker according to an embodiment of the present invention. 3 is a process diagram of manufacturing a nail sticker according to an embodiment of the present invention.

Referring to FIG. 1 , a plurality of nail stickers 10 are manufactured on one sheet (eg, release paper 110 ) according to the nail sticker manufacturing method according to the embodiment, and the nail stickers 10 formed in a predetermined area. A set of nail stickers 10 in which a plurality of nail stickers 10 are finally formed by cutting a sheet in the corresponding area as one set can be produced in units of one day.

A method of manufacturing a nail sticker according to an embodiment of the present invention will be described with reference to FIGS. 2 to 3 .

(S101) forming the printed layer 200

The printing layer 200 may be formed on the base sheet layer 100 including the release paper 110 , the adhesive layer 120 , and the protective layer 130 .

The base sheet layer 100 may be provided in a state wound on a roll and continuously supplied to a conveyor line for design printing of the nail sticker 10 .

The base sheet layer 100 includes a release paper 110 having a release-treated surface, an adhesive layer 120 formed on the surface of the release paper 110 to provide adhesion, and the adhesive layer 120 formed on the surface. A protective layer 130 may be included.

The adhesive layer 120 is formed at the bottom of the nail sticker 10 removed from the release paper 110, and when attached to the user's nails, directly in contact with the upper surface of the user's nails may include an adhesive layer that provides adhesive strength have.

For the protection of the user's nail, the adhesive layer 120 may include a nutritional strengthening component and an antibacterial component for nail health in the adhesive layer in contact with the side surface of the nail, and the nutritional component is preferably vitamin B5, vitamin E , calcium, albumin, tocopheryl acetate, may be selected from the group comprising keratin or eucalyptus.

And when the adhesive layer 120 is formed on the release paper 110, a plurality of air holes are created in the adhesive layer to increase oxygen permeability through the air hole method, so that a breathable feeling of attachment can be implemented so as not to be stuffy after nail attachment.

For example, the pressure-sensitive adhesive layer may be formed to include a porous silica airgel raw material, thereby generating air bubbles in the pressure-sensitive adhesive layer to implement an air hole.

A protective layer 130 for protecting the adhesive layer 120 may be formed on the adhesive layer 120 .

The protective layer 130 may be an adhesive sheet that protects the adhesive force of the adhesive layer 120 and serves as a base for forming the printed layer 200 on the adhesive layer 120 .

In detail, the protective layer 130 may be selected from the group consisting of polyacrylic resin, polyurethane, acrylate copolymer, or butyl acetate.

In an embodiment, the protective layer 130 may be a sheet formed of a mixed composition including polyacrylic resin, polyurethane, acrylate copolymer, and butyl acetate. The protective layer 130 formed of the mixed composition has a high impact absorption rate and soft ductility, so that when an impact is applied to the nail sticker 10 , the nail sticker 10 and the user's nails can be protected.

A printed layer 200 may be formed on the protective layer 130 .

In detail, the printing layer 200 having a color and/or a pattern on the protective layer 130 may be formed by a printing process of applying an ink liquid.

In an embodiment, after lithographic printing of UV ink having a UV curing agent to have a preset color and/or pattern on the protective layer 130 , the printed UV ink may be cured to form the printing layer 200 . .

For example, the printing layer 200 is applied to have a preset color and pattern with a hard UV ink containing a short wavelength initiator through offset printing, inkjet digital printing, gravure printing, silk screen printing or flexographic printing, and , can be rapidly cured for a short time to form the printed layer 200 .

And after forming the printing layer 200, a design layer (not shown) including at least one of foil paper, spot color, glitter powder, pearl powder, aluminum powder, and cubic powder may be further formed.

In detail, the design layer may include at least one of a spot color printing layer 200 including foil paper or a spot color, or a powder printing layer 200 including at least one of glitter powder, pearl powder, aluminum powder, and cubic powder. have.

The design layer may be formed on the printing layer 200 after the printing layer 200 is formed, or may be formed simultaneously with the printing layer 200 .

To this end, the spot color printing layer 200 may be formed through a transfer process or silk screen printing. Here, the transfer process refers to the operation of increasing the durability and visual effect of a print by using a PET film as an adhesive paste and coating it on the print.

In addition, the powder printing layer 200 may be formed by mixing aluminum powder, pearl powder, glitter powder or/and foil paper with ink through silk screen printing and passing it through a silk screen network.

(S103) Performing the effective area cutting process and the ineffective area stripping process

After forming the print layer 200 , a plurality of layers disposed on the effective area AA, which is an area corresponding to the nail sticker 10 on the release paper 110 , and the remaining ineffective area UA on the release paper 110 . ), a cutting process of separating a plurality of layers disposed on each other may be performed.

In detail, one surface of the release paper 110 may be divided into effective areas AA where the nail stickers 10 are disposed and the remaining non-effective areas UA. That is, the effective area AA means a plurality of areas corresponding to the area where the nail sticker 10 is disposed on the release paper 110 , and the non-effective area UA is the area other than the effective area AA. it means.

In the embodiment, the adhesive layer 120, the protective layer 130, and the printing layer 200 on the effective area AA of the release paper 110 are cut through a cutting (Thomson) cutting operation, and the effective area AA is The adhesive layer 120 , the protective layer 130 , and the printed layer 200 may be separated from the adhesive layer 120 , the protective layer 130 , and the printed layer 200 of the ineffective area UA.

In this case, the effective areas AA adjacent to each other among the effective areas AA of the release paper 110 may have different sizes. For example, in the effective area AA group of the release paper 110 constituting one set of the nail sticker 10, the largest effective area AA is disposed on one side, and the size gradually decreases from one side to the other. Any effective area AA may be disposed.

One set of nail stickers 10 includes a plurality of nail stickers 10, and the plurality of nail stickers 10 may be formed to have sizes corresponding to thumb, index finger, middle finger, ring finger, and little nail, respectively. , it is preferable that the size of the effective area AA corresponding to the nail sticker 10 is also sequentially smaller from the effective area AA corresponding to the thumb to the effective area AA corresponding to the baby.

Referring to FIG. 3 , a first effective area AA1 and a second effective area AA2 having a smaller size than the first effective area AA1 may be disposed adjacent to each other on the release paper 110 .

(S105) removing the plurality of layers on the ineffective area UA of the release paper 110

Next, a process of removing the plurality of layers disposed on the ineffective area UA of the release paper 110 from the release paper 110 may be performed.

In detail, the release paper 110 and the adhesive layer 120 are attached to be separated from each other when a force is applied, so a plurality of layers of the effective area AA on the release paper 110 and the non-effective area UA physically separated from each other. It is possible to carry out a stripping process that removes them.

Figure 4 shows a state of removing the layers of the ineffective area (UA) on the release paper 110 after the cutting operation according to an embodiment of the present invention.

For example, referring to FIG. 4 , by removing the adhesive layer 120 , the protective layer 130 , and the printing layer 200 of the ineffective area UA on the release paper 110 , the release paper 110 is effective. The adhesive layer 120 , the protective layer 130 , and the printing layer 200 are formed only on the area AA, and the nail sticker 10 may be manufactured through a subsequent process.

Therefore, the user easily removes the nail sticker 10 disposed on the effective area AA from the release paper 110 by hand, and attaches the adhesive layer 120, which is a part separated from the release paper 110, to the nail. , the nail sticker 10 can be conveniently used.

(S107, S109) Forming a top coating layer

Thereafter, a coating solution including a photoinitiator may be applied on an area corresponding to the effective area AA. (S107) And by curing the coating solution, the top coating layer 300 may be formed. (S109)

In detail, the coating solution may be applied to the effective coating area as large as the offset area OS than the effective area AA of the release paper 110 .

For example, referring to FIG. 3 , the top coating layer 300 formed by curing the coating solution is formed in the effective coating area, and the offset area of the ineffective area UA around the effective area AA of the release paper 110 ( OS) can also be deployed.

Specifically, the top coating layer 300 is directly disposed on the offset region OS of the release paper 110 , so that a portion of the top coating layer 300 may directly contact one surface of the release paper 110 .

In addition, the top coating layer 300 may be formed to surround the adhesive layer 120 , the protective layer 130 , and the printing layer 200 disposed on the effective area AA of the release paper 110 . That is, a portion of the top coating layer 300 may be disposed to directly contact the side surfaces of the adhesive layer 120 , the protective layer 130 , and the printed layer 200 exposed through the cutting process.

As described above, the top coating layer 300 is formed by curing after the coating solution is applied. The coating solution applied to the effective coating area includes the release paper 110 and the adhesive layer 120 on the effective area AA, and the protective layer 130 . ), may be formed to have a natural round due to the step difference between the printed layers 200 .

That is, the top coating layer 300 may be formed to have a relatively lower height from the center of the effective area AA toward the outside.

For example, the first height T1 of the upper surface of the top coating layer 300 with respect to the center of the effective area AA may be formed to be higher than the second height T2 of the upper surface of the outer side than the center of the effective area AA. have.

In addition, the top coating layer 300 formed on the offset region OS may be formed in a rounded shape. In detail, the first width T3 of the top coating layer 300 on the release paper 110 side has a wider width than the second width T4 of the top coating layer 300 at a height relatively farther than the release paper 110 . may be formed.

The top coating layer 300 of this type is formed to have a natural curvature, thereby giving the nail sticker 10 a sense of volume to improve aesthetics.

In addition, the top coating layer 300 is disposed as much as the offset region OS on the outermost part of the nail sticker 10 so that when the nail sticker 10 is attached to the nail, the top coating layer 300 having ductility naturally surrounds the nail. Therefore, it has the effect of being able to attach naturally like a normal fingernail.

In addition, when removing the nail sticker 10 from the nail, the user first applies a force to the top coating layer 300 in the offset region OS to remove it. Compared to the adhesive layer 120 , the top coating layer 300 is relatively Since the adhesive force is low and the adhesion rate with the nail is low, it is easily removed from the nail and naturally the adhesive layer 120 next to the top coating layer 300 is also separated from the nail, thereby minimizing damage to the nail.

In order to form the top coating layer 300 , in the embodiment, a hole is formed in a position corresponding to the effective area AA on the release paper 110 in a mask film, and the mask film in which the hole is formed is applied on the release paper 110 . By applying the coating solution after disposing in the AA, the coating solution can be applied to each of the effective coating areas corresponding to the effective areas AA.

Since the coating solution has a predetermined viscosity, the top coating layer 300 is formed as it is applied and then spreads to a predetermined area and then cured. It may have a size between AA) and the effective coating area.

That is, by applying the coating solution on the mask film having pattern holes corresponding to the effective area (AA) pattern of the release paper 110, the coating solution can be placed in the effective coating area larger than the effective area (AA) by the offset area (OS). have.

At this time, when the coating solution is applied on the mask film, the coating solution is applied only to the line corresponding to the effective area AA, thereby minimizing the coating solution application to the ineffective area UA, thereby reducing the original manufacturing cost of the nail sticker 10. have.

In addition, the naturally diffused coating solution has a round shape and can be cured on the effective coating area.

In order to give the corner portion of the top coating layer 300 a more rounded curve, cutting may be performed so that a predetermined curve is formed on the outer side of the printed layer 200 of the effective area AA during the cutting process. That is, the printed layer 200 remaining in the effective area AA may include a flat upper surface and a side surface having a round shape on the outer side.

The coating liquid applied on the printing layer 200 is naturally applied to the offset area OS along the round-shaped side surface of the printing layer 200, and the top formed on the offset area OS and the effective area AA. The coating layer 300 may be formed to have a smooth curve.

In addition, the top coating layer 300 may apply the coating solution multiple times in order to give a natural volume like the nail of the nail sticker 10 .

Referring to FIG. 5A , in the embodiment, the first top coating layer 310 is formed on the offset area OS and the effective area AA by applying a coating solution to the first area, and the first top coating layer 310 is relatively smaller than the first area. The second top coating layer 320 is formed on the upper surface of the first top coating layer 310 by re-applying the coating solution to the second area, and the second top coating solution is applied again to the third area that is relatively smaller than the second area. The third top coating layer 330 is formed on the upper surface of the coating layer 320 so that the height is relatively increased in the central region of the top coating layer 300, and the height is relatively decreased from the center to the outer region. (300) can be formed.

At this time, the top coating layer 300 may be formed by applying the coating solution to each area and then curing the coating solution with a predetermined curing time and then applying the coating solution again.

Referring to FIG. 5B , in another embodiment, the effective area AA of the release paper 110 or the effective area AA of the release paper 110 is first applied to the fourth area smaller by a predetermined size than the effective area AA. A fourth top coating layer 311 may be formed on the upper surface of the printed layer 200 , and a coating solution is secondarily applied to a fifth area larger than the fourth area to form a fifth top coating layer 321 on the effective coating area. By forming, the top coating layer 301 can be formed.

In this case, a relatively large amount of the coating solution may be applied to the central region side in the fourth region so that the fourth top coating layer 311 is formed in a dome shape, and the fifth top coating layer 311 formed on the dome-shaped fourth top coating layer 311 may be applied. The top coating layer 321 may be formed to have a more voluminous feel in the center.

Meanwhile, the sizes of the effective areas AA adjacent to each other may be different from each other, and accordingly, the sizes of the effective coating areas may also be set differently.

In detail, referring to FIG. 6 , the top coating layer 300 is disposed on the first effective coating area including the first effective area AA1 and the first offset area OS1 , and is smaller than the first effective area AA1 . The top coating layer 300 may be disposed on the second effective coating area including the second effective area AA2 and the second offset area OS2 .

In an embodiment, the first offset region OS1 and the second offset region OS2 may have the same size. That is, the size of the offset area OS may be uniformly formed in the effective area AA regardless of the size. In this case, the offset region OS has an appropriate size for the nail sticker 10 to cover the outer shell of the nail, giving a natural fit, and can be used as a user's handle when the nail sticker 10 is removed.

In another embodiment, the size of the second offset region OS2 may be smaller than the size of the first offset region OS1 . In detail, the size of the second offset area OS2 is the same as the ratio of the difference between the sizes of the first effective area AA1 and the second effective area AA2, and the size difference ratio of the first offset area OS1 is the same. It may be formed in a size having a That is, the size ratio of the first effective area AA1 and the second effective area AA2 and the size ratio of the first offset area OS1 and the second offset area OS2 may be the same.

Accordingly, by adjusting the size of the offset region OS of the top coating layer 300 according to the size ratio of the nail sticker 10 , it is possible to form the top coating layer 300 optimized according to the size of the nail sticker 10 .

On the other hand, the top coating layer 300 may be formed on at least one offset area OS of the four sides surrounding the effective area (AA) of the release paper (110).

For example, referring to (a) of FIG. 7 , in the first embodiment, the top coating layer 300 may be formed on the offset areas OS respectively located in the upper, lower, left, and right of the effective area AA. In this case, according to the embodiment, the width d (length from the effective area AA) of all the offset areas OS in the upper, lower, left, and right may be uniformly formed.

In addition, the top coating layer 300 may not be formed in at least one of the upper, lower, left, and right areas of the effective area AA.

Referring to FIG. 7B , in the second embodiment, the top coating layer 301 may be formed in the left offset area OS1, the right offset area OS1, and the lower offset area OS1 of the effective area AA. and an offset region may not be formed on the effective region AA.

Here, the upper side of the effective area AA is a position corresponding to the free edge of the nail, and when the relatively soft top coating layer 301 is disposed, damage due to impact may occur, so the nail sticker ( 10) The upper side of the relatively hard printed layer 200 may be exposed.

Also, the offset area OS at one side of the effective area AA may be disposed to have different widths according to positions.

Referring to FIG. 7C , in the third embodiment, the left and right offset regions OS2 (hereinafter referred to as side (l) offset regions OS2) are the first positions of the first position in the side offset region OS2. The third width d3 and the second width d2 at the second position positioned above the first position may be different from each other. For example, the second width d2 may be greater than the third width d3.

That is, by arranging the offset region OS2 to be rounded to correspond to the nail groove on the side of the nail, the top coating layer 302 is also formed to be rounded on the offset region OS2, so that it naturally depends on the shape of the nail. It can be formed to be attached.

In addition, the widths of the offset areas OS2 of the upper, lower, left, and right of the effective area AA may be different from each other. For example, the width d4 of the lower offset area OS2 of the effective area AA may be relatively smaller than the widths d3 and d2 of the side offset area OS2.

Referring to FIG. 7D , in the fourth embodiment, the lower offset region OS3 is formed to be round like the cuticle of the nail, and the top coating layer 303 can be formed so as to be naturally seated on the nail.

Meanwhile, after the coating solution is applied, the coating solution may be cured to form the top coating layer 300 .

In detail, the coating solution includes a photocuring agent, and after the coating solution is applied, the coating solution is photocured by irradiating light to form the top coating layer 300 .

At this time, by photocuring the coating solution for a sufficient time to completely cure the coating solution, the top coating layer 300 in which the cured composition is completely cured may be formed.

Here, complete curing means a state in which the cured composition remains in the top coating layer 300 at a predetermined ratio or less, and in the embodiment, when 99% or less of the cured composition remains, it means that the cured composition is fully cured.

In addition, the coating solution may include a thermal curing agent, and after applying the coating solution, heat is applied to thermally cure the coating solution to form the top coating layer 300 .

At this time, by thermally curing the coating solution for a sufficient time to completely cure the coating solution, the top coating layer 300 in which the cured composition is completely cured may be formed.

In an embodiment, the coating solution may include an ultraviolet curing raw material, a photoinitiator, and a thermally dried raw material.

For example, the coating solution, the UV curing raw material may include urethane acrylate oligomer (Acrylates Oligomer) and polyester oligomer (Polyester Oligomer). The above type of oligomer is a UV-reactive resin, so that the top coating layer 300 contributes to flexible physical properties before curing and to have soft properties after curing. And, although it does not dissolve in acetone after curing, it has a swelling property, so it is possible to improve the removability by acetone.

In an embodiment, the coating solution is completely cured by irradiating ultraviolet rays for a sufficient time including the ultraviolet curing agent, and when it further contains a thermal curing raw material, it can be fully cured by applying heat during ultraviolet curing to perform sufficient thermal curing.

As described above, the nail sticker 10 including the fully cured top coating layer 300 is in a soft solid state, so it is strong against external impact and does not adhere to the wrapping paper, so a separate film for protecting the top coating layer 300, The advantage is that product packaging is not required.

In addition, the user can easily attach the nail sticker 10 with the fully cured top coating layer 300 exposed to the nail, and the top coating layer 300 formed in the offset region OS is directly attached to the nail, so that the nail is naturally damaged. It can cover the top.

And when the user additionally irradiates light to the fully cured top coating layer 300, the top coating layer 300 is gradually over-cured according to the light irradiation time, and the hardness may gradually increase, through this The strength of the nail sticker 10 can also be adjusted.

The top coating layer 300 that is over-cured and attached to the nail has a low degree of adhesion with the nail, so that it is possible to minimize damage to the nail during removal while providing a comfortable feeling when attached. In particular, even if it is attached for a long time, the top coating layer 300 directly attached to the nail in the offset region OS through over-cure can be naturally separated from the nail, thereby minimizing the degree of nail damage.

In addition, although the detailed description of the present invention has been described with reference to a preferred embodiment of the present invention, those skilled in the art or those having ordinary knowledge in the art will appreciate the spirit of the present invention described in the claims to be described later. And it will be understood that various modifications and variations of the present invention can be made without departing from the technical scope. Accordingly, the technical scope of the present invention should not be limited to the contents described in the detailed description of the specification, but should be defined by the claims.

Nail Stickers(10)
Release Paper (110)
adhesive layer (120)
protective layer 130
printed layer (200)
top coating layer (300)

Claims (7)

A base comprising a release paper 110 divided into an effective area AA and an ineffective area UA, an adhesive layer 120 on the release paper 110 , and a protective layer 130 on the adhesive layer 120 . preparing the sheet;
forming a printed layer 200 on the base sheet;
The adhesive layer 120, the protective layer 130, and the printed layer 200 disposed on the release paper 110 are cut, and the adhesive layer 120 and the protective layer of the effective area AA on the release paper 110 are cut. separating the 130 and the printed layer 200;
removing the adhesive layer 120 , the protective layer 130 and the printing layer 200 on the ineffective area UA of the release paper 110 ;
applying a coating solution on the effective coating area corresponding to the effective area AA of the release paper 110;
and curing the applied coating solution to form a top coating layer 300 on the effective coating area,
The step of applying the coating solution on the effective coating area corresponding to the effective area AA of the release paper 110 includes the effective area AA and the offset area disposed on at least one side of the upper, lower, left and right sides of the effective area AA. Applying the coating solution to a first effective coating area including (OS), and applying the coating solution to the upper surface of the offset area (OS) of the release paper 110 so that the coating solution is in contact with the first effective coating area; Re-applying the coating solution to the small second effective coating area,
The step of curing the applied coating solution to form the top coating layer 300 on the effective coating area includes the step of photocuring the coating solution containing a photoinitiator to form the fully cured top coating layer 300, and ,
The bottom surface of the top coating layer 300 is formed so as to extend from the bottom surface of the adhesive layer 120 .
How to make a nail sticker. The method of claim 1,
The step of forming the printed layer 200 on the base sheet,
Forming the printing layer 200 on the upper surface of the protective layer 130 by lithographic printing an ink liquid having a color or pattern
How to make a nail sticker. delete The method of claim 1,
Forming the top coating layer 300 on the effective coating area by curing the applied coating solution,
Forming the top coating layer 300 on the upper surface of the printing layer 200, forming the top coating layer 300 on the upper surface of the offset region (OS) of the release paper 110, and the top coating layer 300 Comprising the step of forming on the side of the printed layer 200
How to make a nail sticker. 5. The method of claim 4,
Forming the top coating layer 300 on the effective coating area by curing the applied coating solution,
Applying and curing the coating solution a plurality of times to form the top coating layer 300 to be relatively lowered in height from the center to the outer shell of the effective area AA
How to make a nail sticker. delete Lee Hyung-ji 110 divided into an effective area (AA) and an ineffective area (UA);
an adhesive layer 120 disposed on the effective area AA of the release paper 110;
a protective layer 130 disposed on the adhesive layer 120;
a printed layer 200 disposed on the protective layer 130;
Includes; top coating layer 300 disposed on the printing layer 200;
The top coating layer 300 is formed on the offset area OS of at least one side of the upper, lower, left, and right of the effective area AA,
The top coating layer 300 is formed to be in direct contact with the upper surface of the offset area OS disposed outside the effective area AA of the release paper 110,
The top coating layer 300 is formed by applying a coating solution containing a photoinitiator to the effective coating area corresponding to the effective area AA of the release paper 110 while narrowing the range at least two times,
The top coating layer 330 is a state in which the photoinitiator of the coating solution is completely cured,
The bottom surface of the top coating layer 300 is formed so as to extend from the bottom surface of the adhesive layer 120 .
How to make a nail sticker.

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