KR102295997B1 - Manufacturing methof of nail sticker - Google Patents

Abstract

The present invention discloses a manufacturing method of a nail sticker. According to the present invention, decorative layers are formed to have different widths so as to minimize a tension generation of the nail sticker attached to the nail, thereby improving a problem for which the nail sticker peels-off easily from the fingernail while preventing a phenomenon of allowing an edge side of the nail sticker attached to a curved fingernail from lifting up, and increasing an efficiency of adhesion of the nail stickers such as preventing the problem of allowing the nail stickers from being easily broken-off. The method comprises: a first process; a second process; a third process; and a fourth process.

Description

Nail sticker manufacturing method {Manufacturing method of nail sticker}

The present invention relates to a nail sticker, and more particularly, to a method for manufacturing a nail sticker capable of increasing adhesion efficiency to the nail sticker while minimizing the generation of tension in the nail sticker attached to the nail.

In general, along with the increase of women's interest in beauty, nail art that makes nails beautiful by introducing various patterns or colors is widely used. How to attach , etc.

In the case of nail art in which the manicure is applied directly to the nails, it is not easy to draw by oneself, so a separate service is received from a professional, but there are disadvantages in that it takes a lot of money and the decoration time is not long.

When the artificial nail is used, skin troubles occur in the process of using the remover to remove the adhesive adhered to the back surface of the artificial nail and it is difficult to reuse.

Accordingly, in recent years, nail stickers that are sold for one-time use and are inexpensive and easy to use are widely used. These nail stickers include a base layer, a decorative layer formed by silk screen printing on the base layer, and a gel coating layer formed on the decorative layer. Including, the release paper detachable through the adhesive layer is attached to the lower surface side of the base layer and the upper surface side of the gel coating layer.

However, in the conventional nail sticker as described above, when at least one decorative layer is formed on the base layer by silk screen printing and then attached to the nail, as shown in FIG. 4 , the base layer and the Even if the decorative layer is molded to be curved, when it is attached to the nail, tension to return to a flat surface is generated, and the edge of the nail sticker is lifted from the nail. Stickers are easily broken, making them inconvenient to use, and in particular, they are difficult to cut into various shapes, limiting decorativeness.

In other words, the adhesive strength of the sticker at both ends of the curved part of the nail is weakened due to the adhesive force of the nail sticker and the force to restore the printed material on the upper part, and when water gets into the hand, the attached part comes off from the end of the sticker. Also, if the tip of the sticker falls off, there are several problems, such as when women wash or comb their hair, the hair gets caught between the stickers, making it uncomfortable.

In addition, in order to add aesthetics to the nail sticker, rhinestones (jewelry or three-dimensional ornaments attached to nail stickers) are pasted on the gel coating layer. There is a problem that arises.

Registered Patent Publication No. 10-1240508 (published on March 11, 2013) Registered Patent Publication No. 10-1903497 (published on October 2, 2018) Registered Patent Publication No. 10-2208444 (published on January 28, 2021)

SUMMARY OF THE INVENTION An object of the present invention is to provide a method for manufacturing a nail sticker capable of increasing adhesion efficiency to the nail sticker while minimizing the generation of tension in the nail sticker attached to the nail.

A method for manufacturing a nail sticker, which is a means of solving the problems of the present invention, includes: a first step of injecting a film forming a base layer to a silk screen printing mold while an adhesive layer is applied on one surface; a second process of sequentially stacking and printing at least one decorative layer on the adhesive layer of the base layer that is put into the silk screen printing mold from the first process; A third process of removing the adhesive layer of the base layer where the decorative layer is not laminated by a half-cut punching process through a punching process, and a fourth process of coating a gel coating layer on the decorative layer sequentially laminated and printed from the second process ; In the second process, the decorative layer is laminated and printed on the base layer so that the width is gradually narrowed when stacked in the upper direction with respect to the base layer, and in the fourth process, the gel coating layer is It is to be coated so as to cover the entirety of the at least one or more decorative layers that are laminated and printed so as to gradually narrow the width on the base layer.

In addition, the gel coating layer coated in the third step is to be cured or semi-cured by the UV drying process including the UV curing resin.

The film constituting the base layer includes a release paper layer and the adhesive layer on the release paper layer.

The gel coating layer is coated so as to cover the entirety of the at least one or more decorative layers that are laminated and printed on the base layer to gradually narrow in a dome shape or to cover vertically.

In addition, a fifth step of attaching rhinestones to the gel coating layer; will further include

In addition, the fifth step, a groove forming step of forming an attachment groove by pressing one surface of the gel coating layer with a press; an application process of applying an adhesive to the attachment groove formed in the groove forming process; and an attachment step of inserting and fixing the rhinestone into the attachment groove to which the adhesive is applied from the coating step; will include

In addition, the decorative layer laminated and printed in the second step may include: silk screen printing the first decorative layer with a first width on the adhesive layer applied to one surface of the base layer; after the first decorative layer is cured, silk screen printing to laminate a second decorative layer with a second width narrower than the first width on the first decorative layer; and, after the second decorative layer is cured, silk screen printing to laminate a third decorative layer with a third width narrower than the second width on the second decorative layer; will include

As described above, according to the present invention, the decorative layers are formed to have different widths to minimize the tension generation of the nail sticker attached to the nail, thereby preventing the phenomenon of lifting the edge of the nail sticker attached to the curved nail. While doing so, it is possible to expect the effect of increasing the adhesion efficiency of the nail sticker, such as improving the problem of the nail sticker peeling off easily from the nail and preventing the problem of the nail sticker being easily broken.

In addition, when the thickness of the gel coating layer is thickened to improve the gel feeling of the sticker in the existing nail sticker, the adhesion of the nail sticker is deteriorated.

In addition, it is possible to fundamentally solve the problem of hair getting stuck after wearing the nail sticker, and the adhesion to the nail is improved, so that the nail sticker can be used for a longer period of time than existing products.

When attaching rhinestones to the nail sticker, the rhinestone is inserted and adhered together with the adhesive in the part where the attachment groove is formed, so even if the nail sticker is bent along the C-curve side of the nail, cracks occur between the rhinestone and the gel coating layer of the nail sticker. There are advantages to not doing it.

Effects of the present invention are not limited to the effects mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art from the description of the claims.

1 is a flowchart showing a method for manufacturing a nail sticker according to an embodiment of the present invention.
2(a) and 2(b) are cross-sectional schematic views showing the structure of a nail sticker according to an embodiment of the present invention.
3 is a process diagram showing a state of attaching rhinestones to a nail sticker according to an embodiment of the present invention.
Figure 4 is a view for explaining the problem of the nail sticker of the prior art.

Advantages and features of the present invention, and methods for achieving them, will become apparent with reference to the embodiments described below in detail in conjunction with the accompanying drawings. However, in the embodiments of the technical idea of the present invention, it is not limited to the embodiments disclosed below, but may be implemented in various different forms, only this embodiment makes the disclosure of the present invention complete, and the technology to which the present invention belongs It is provided to fully inform those of ordinary skill in the art the scope of the invention, and is only defined by the scope of the claims in the embodiments of the technical idea of the present invention.

The terminology used herein is for the purpose of describing the embodiments and is not intended to limit the present invention. As used herein, the singular also includes the plural unless specifically stated otherwise in the phrase.

In the present specification, terms such as "comprise" or "have" are intended to designate that a feature, number, step, operation, component, part, or combination thereof described in the specification exists, but one or more other features It is to be understood that it does not preclude the possibility of the presence or addition of numbers, steps, operations, components, parts, or combinations thereof.

Further, the embodiments described herein will be described with reference to cross-sectional and/or plan views, which are ideal illustrative views of the present invention. Accordingly, the embodiments of the present invention are not limited to the specific form shown, but also include necessary changes. For example, the region shown at a right angle may be rounded or have a predetermined curvature. Accordingly, the regions illustrated in the drawings have a schematic nature, and the shapes of the illustrated regions in the drawings are intended to illustrate specific shapes of regions of the device and not to limit the scope of the invention.

Like reference numerals refer to like elements throughout the specification. Accordingly, the same or similar reference signs may be described with reference to other drawings, even if not mentioned or described in the drawings. In addition, although reference numerals are not indicated, descriptions may be made with reference to other drawings.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

1 is a flowchart showing a method for manufacturing a nail sticker according to an embodiment of the present invention, FIG. 2 is a cross-sectional schematic diagram showing the structure of a nail sticker according to an embodiment of the present invention, and FIG. 3 is a rhinestone on a nail sticker according to an embodiment of the present invention It shows a process diagram showing the state of attaching.

1 to 3, the nail sticker (NS) according to an embodiment of the present invention is to prevent a lifting phenomenon due to tension when attached to the nail, the first to fourth processes (S10, S20, S30 and S40 are included, and in addition to this, a fifth step (S50) may be further included.

In the first process (S10), a film constituting the base layer 10 is put into a silk screen printing mold while an adhesive layer (not shown) is applied on one surface.

Here, the film constituting the base layer 10 may be a PET film, and an adhesive is applied to one surface of the PET film to a certain thickness to form the adhesive layer, and the adhesive is already commonly used. A variety of adhesives can be applied.

The film constituting the base layer 10 includes a release paper layer (not shown) and the adhesive layer on the release paper layer as one body. That is, it may have a configuration in which two layers of the release paper layer and the adhesive layer thereon are integrally formed. Here, the adhesive constituting the adhesive layer may be cured while drying at room temperature.

Alternatively, an adhesive layer coated with an adhesive may be formed on the other surface of the film constituting the base layer 10, and a release paper (not shown) may be attached thereto. The release paper is for protecting the adhesive layer.

That is, since the adhesive layer formed on the bottom side, which is the other surface of the base layer 10, provides the viscosity to be attached to the user's nails, the adhesive layer prevents foreign substances from sticking through the release paper.

The following second process (S20) is to sequentially laminate and print at least one decorative layer 20 on the adhesive layer of the base layer 10 that is put into the silk screen printing mold.

That is, the decorative layer 20 is to laminate and print color ink on one surface of the base layer 10 to a certain thickness, and the color ink includes CMYK, C is blue, M is red, and Y is yellow. , K is black, and the decorative layer 20 is formed in various ways, such as by appropriately mixing these color inks or by using it alone, and the decorative layer 20 can be printed to form a nail shape. Alternatively, the decorative layer 20 may be printed to form a claw shape. Conventionally, when several decorative layers are stacked, the width and thickness of the decorative layers are mostly stacked uniformly.

In the embodiment of the present invention, the decorative layer 20 is laminated and printed on the base layer 10 so that the width becomes gradually narrow when stacked in the upper direction with respect to the base layer 10, which is shown in the accompanying drawings. As in 2(a), silk screen printing a first decorative layer (T1) with a first width (W1) on the adhesive layer applied to one surface of the base layer (10), the first decorative layer (T1) After the curing, silk screen printing is performed so that a second decorative layer T2 is laminated on the first decorative layer T1 with a second width W2 narrower than the first width W1, while the second decoration After the layer (T2) is cured, silk screen printing is possible so that the third decorative layer (T3) is laminated on the second decorative layer (T2) with a third width (W3) that is narrower than the second width (W2). This is to prevent the problem that the edge side of the nail sticker NS is lifted from the nail by tension when the nail sticker NS is attached to the nail having a curved surface.

Here, although it has been described in the above description that the decorative layer 20 includes the first to third decorative layers T1, T2, and T3, the stacked structure may be increased or decreased.

That is, only the first decorative layer T1 and/or the second decorative layer T2 is printed on the base layer 10 , or the first to third After laminating the decorative layers T1, T2, and T3, another narrow decorative layer may be additionally printed on the third decorative layer T3.

The thicknesses of the first to third decoration layers T1 , T2 , and T3 may be constant (see FIG. 2A ) or different from each other.

In addition, the thickness of the center and the thickness of the edge of each of the first to third decorative layers (T1, T2, T3) may be formed to be different from each other.

That is, the thickness of the edge of each of the first to third decoration layers T1 , T2 , and T3 may be made thinner than the thickness of the central portion, and the thickness may be decreased toward the edge. Then, since the central width is thick and the edge becomes thinner, the decorative layer 20 has a dome shape.

The structure is thinner than the thickness of the center toward the edge, and the second decorative layer T2 covers the entire first decorative layer T1, and the third decorative layer T3 covers the entire second decorative layer T2. can be stacked with (See Fig. 2(b))

This is to prevent the problem that the edge side of the nail sticker NS is lifted from the nail by tension when the nail sticker NS is attached to the nail having a curved surface.

Next, the third process (S30) is to remove the adhesive layer of the base layer 10 on which the decorative layer 20 is not laminated by half-cutting through a punching process.

The base layer 10 consists of a release paper layer (not shown) and an adhesive layer on the release paper layer integrally, and a decorative layer 20 is laminated on the adhesive layer. After the decorative layer 20 is laminated, the decorative layer (20) is to remove the adhesive layer on the portion of the base layer 10 remaining without being laminated through a punching process. At this time, the entire base layer 10 is not removed by the punching process, but only the adhesive layer is removed using a half-knife of a punching machine.

The fourth step (S40) is to coat the gel coating layer 30 on the decorative layer 20 that is sequentially laminated and printed on the base layer 10 .

That is, in the fourth process (S40), the gel coating layer 30 is at least one laminated printed on the base layer 10 such that the width (W1→W2→W3) is gradually narrowed as shown in FIG. 2 attached. The above decorative layer (20; T1, T2, T3) is coated to cover the entirety, which holds the edge of the decorative layer (20) so that it does not float when the nail sticker (NS) is attached to the nail having a curved surface. will play a role

The gel coating layer 30 is coated so as to cover the entirety of at least one or more decorative layers 20 that are laminated and printed on the base layer 10 so as to be gradually narrowed in a dome shape (refer to FIG. 2(b)) or Coat to cover vertically.

Here, the gel coating layer 30 is cured or semi-cured by the UV drying process including the UV curing resin, which is a layer with some fluidity because the UV curing resin is not completely cured, and the decorative layer ( 20; T1, T2, T3) is coated with the UV-curable resin to a predetermined thickness and is formed by irradiating UV light so that the UV-curing resin is semi-cured, or a film made by semi-curing the UV-curing resin separately is formed on the decorative layer 20 ) can be achieved by laminating the above. A known UV curing resin is used. In the present invention, 'semi-cured' means not completely cured, and does not mean that the degree of uncured is 50%.

Here, the gel coating layer 30 may be a transparent coating layer that protects the decorative layer 20 ( T1 , T2 , T3 ) as a transparent coating layer.

On the other hand, in the method for manufacturing a nail sticker (NS) according to an embodiment of the present invention, UV drying is performed for drying the adhesive layer of the base layer 10 , and the decorative layer 20 and the gel coating layer 30 . Hot air drying can be carried out at the same time, and when only the UV drying is performed, even if the gel coating layer 30 is dried, the decorative layer 20 and the adhesive layer in the lower layer may not be dried properly. In order to dry the adhesive layer, the decorative layer 20 and the gel coating layer 30, hot air drying is performed at the same time as normal UV drying.

The fifth step ( S50 ) is to attach the rhinestones 40 to the gel coating layer 30 .

That is, as shown in the attached FIG. 3 , one surface of the gel coating layer 30 is pressed with a press 100 to form an attachment groove 41 , and then an adhesive 42 is applied to the attachment groove 41 . .

Then, by inserting and fixing the rhinestone 40 into the attachment groove 41 to which the adhesive 42 is applied, the rhinestone 40 is placed on the surface of the nail sticker NS according to the embodiment of the present invention. ) to maximize the decorative effect for aesthetics, as well as to attach the nail sticker (NS) to the nail forming a curved surface, when the nail sticker (NS) forms a curved surface corresponding to the nail, the The rhinestone 40 is not separated from the surface of the nail sticker NS having a curved surface and can maintain a strong attachment state.

That is, in the prior art, when rhinestones are attached to the surface of the nail sticker as they are, cracks are generated on the bonding surface between the rhinestone and the nail sticker, and the rhinestones are easily separated from the nail sticker, but the present invention In the embodiment of , since the attachment groove 41 is formed on the surface of the nail sticker NS, that is, the surface of the gel coating layer 30, and then the rhinestone 40 is inserted and fixed with the adhesive 42, the line The stone 40 is capable of maintaining a strong attachment state to the nail sticker NS forming a curved surface.

As described above, the nail sticker (NS) according to the embodiment of the present invention is supplemented to increase the durability and feeling of use compared to the existing ones. This occurs, the embodiment of the present invention has the effect of further enhancing the durability by supplementing so as not to generate a feeling of foreign body and a lifting part in real life. And, since the nail sticker (NS) according to the embodiment of the present invention is less lifted due to tension generation at both edges (that is, it has good adhesion to the nail), it is possible to print by raising the gel coating layer 30 more. The user's gel feeling can be improved.

In addition, the nail sticker (NS) according to the embodiment of the present invention is easy to attach to the user's curved nail (or toenail) due to the gel coating layer 30 in a semi-cured state, and after attaching to the nail (or toenail) When the gel coating layer 30 is cured (eg, cured with a long-wavelength LED light), it is hardened in that state, and there is no denting, scratching, deformation, lifting, etc., so that the durability can be improved.

On the other hand, in the nail sticker (NS) according to the embodiment of the present invention manufactured as described above, each layer can be cut into a nail (or toenail) shape through a conventional punching process, and a detailed description thereof will be omitted below. do.

In the above, the technical idea of the nail sticker (NS) manufacturing method of the present invention has been described along with the accompanying drawings, but this is an exemplary description of the best embodiment of the present invention and does not limit the present invention.

Therefore, the present invention is not limited to the specific preferred embodiments described above, and various modifications can be made by anyone skilled in the art without departing from the gist of the present invention as claimed in the claims. It is, of course, possible that such modifications are intended to be within the scope of the appended claims.

10; base layer 20; decorative layer
30; gel coating layer 40; rhinestone
41; attachment groove 42; glue
100; Press

Claims (9)

A first process of putting a film constituting a base layer while applying an adhesive layer on one surface to a silk screen printing mold; a second process of sequentially stacking and printing at least one decorative layer on the adhesive layer of the base layer that is put into the silk screen printing mold from the first process; A third process of removing the adhesive layer in the portion of the base layer on which the decorative layer is not laminated by a half-cut through a punching process, and a fourth process of coating a gel coating layer on the decorative layer sequentially laminated and printed from the second process ; includes,
In the second process, the decorative layer is laminated and printed on the base layer so that the width is gradually narrowed when stacked in the upper direction with respect to the base layer,
In the fourth step, the gel coating layer is coated so as to cover the entirety of the at least one or more decorative layers that are laminated and printed on the base layer so that the width is gradually narrowed. The method of claim 1,
The method for manufacturing a nail sticker, characterized in that the gel coating layer coated in the fourth step is cured or semi-cured by an ultraviolet drying process including a UV curing resin. 3. The method of claim 2,
The film forming the base layer comprises a release paper layer and the adhesive layer on the release paper layer. 4. The method of claim 3,
a fifth step of attaching rhinestones to the gel coating layer; A method of manufacturing a nail sticker, characterized in that it further comprises. 5. The method of claim 4,
The fifth step is
a groove forming step of forming an attachment groove by pressing one surface of the gel coating layer with a press;
an application process of applying an adhesive to the attachment groove formed in the groove forming process; and,
an attachment step of inserting and fixing the rhinestone into the attachment groove to which the adhesive is applied from the coating step; A nail sticker manufacturing method comprising a. The method of claim 1,
The decorative layer laminated and printed in the second process,
silk screen printing a first decorative layer with a first width on an adhesive layer applied to one surface of the base layer;
after the first decorative layer is cured, silk screen printing to laminate a second decorative layer with a second width narrower than the first width on the first decorative layer; and,
after the second decorative layer is cured, silk screen printing to laminate a third decorative layer with a third width narrower than the second width on the second decorative layer; A nail sticker manufacturing method comprising a. According to claim 1, wherein the gel coating layer,
A method for manufacturing a nail sticker, characterized in that the coating is coated to cover the entirety of at least one or more of the decorative layers that are laminated and printed on the base layer to gradually narrow the width in a dome shape or to cover the entirety of the decoration layer vertically. A nail sticker manufactured by the method of claim 3 . A nail sticker manufactured by the method of claim 5 .

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