KR20230172172A - Shape transformable nail sticker - Google Patents

Abstract

A moldable nail sticker is disclosed. The moldable nail sticker according to the present invention has a lower surface formed in a concave shape corresponding to the shape of the object, and includes a molding frame that is detachable after being laminated on the object; and a sticker body provided on the lower surface of the mold, having semi-hardened flexibility, and having a three-dimensional shape by being adhered to an object and then hardened.

Description

Formable nail sticker {SHAPE TRANSFORMABLE NAIL STICKER}

The present invention relates to moldable nail stickers.

In general, artificial nails or nail stickers to assist with manicure are mainly used to decorate fingernails and toenails.

Artificial nails have the advantage of being more aesthetically pleasing than natural fingernails and toenails and being able to be molded to extend from the fingernails, etc., but there are problems such as foreign body sensation to the wearer, hair getting caught between the fingernail and the artificial nail, and contaminants seeping in.

On the other hand, nail stickers have an excellent fit and have the advantage of preventing hair or contaminants from getting caught between the nail and the nail sticker, but they have the problem of having to retain the original shape of the nail and not being able to extend from the nail. .

In addition, considering the fact that artificial nails require advanced technology to manufacture and use and require a lot of money and time, nail stickers printed on fabric with various patterns and colors are gaining popularity.

Accordingly, the present applicant conducted research on nail stickers that reflect the advantages of artificial nails in order to complement the problems of nail stickers.

[Document 1] Republic of Korea Patent No. 10-1365194 (announced on February 25, 2014)

Therefore, the technical problem to be solved by the present invention is to provide a moldable nail sticker that can be extended from the user's fingernails, toenails, etc., has excellent aesthetics, and can be molded to fit the shape of the user's fingernails, toenails, etc. to improve fitting. will be.

According to one aspect of the present invention, a molding frame whose lower surface is formed in a concave shape corresponding to the shape of the object and which is detachable after being laminated on the object; And a moldable nail sticker including a sticker body provided on the lower surface of the mold, has semi-hardened flexibility, and has a three-dimensional shape by being adhered to the object and then hardened.

After the sticker body is brought into close contact with the object and the mold is pressed to adhere the sticker body to the object, the sticker body is cured and the mold can be separated from the sticker body.

When the length of the mold is formed to be longer than the length of the object, the sticker body may be arranged to extend outward in the longitudinal direction from the upper surface of the object.

The sticker body includes a semi-hardened layer provided on the lower surface of the mold and having semi-hardened flexibility; And it may include an adhesive layer provided below the semi-hardened layer.

The semi-cured layer includes a thermosetting component, and the semi-cured layer is formed on the lower surface of the mold by supporting and thermosetting the liquid semi-cured layer on the lower surface of the mold, or after the liquid semi-cured layer is heat-cured. It can be formed in close contact with the lower surface of the mold.

The semi-cured layer contains a photocurable component, and the semi-cured layer can be photocured after adhering the adhesive layer to the object.

The sticker body further includes a base layer provided between the adhesive layer and the semi-cured layer, and the base layer is made of polyvinyl chloride, polyethylene, polyurethane, polypropylene, polyethylene terephthalate, polyolefin elastomer, and ethylene-vinylacetate. It may be formed of any one selected from copolymers, acrylic resins, polystyrene, polyvinylidene chloride, thermoplastic polyurethane (TPU), polyester, and combinations thereof.

The base layer may further include glass fiber.

The sticker body may further include a printing layer provided between the base layer and the semi-cured layer or between the base layer and the adhesive layer.

The surface tension of the lower surface of the mold may be 48 dyne/cm or less per unit width.

It may further include a protective film provided on the lower surface of the sticker body to protect the sticker body and having a plurality of cutting lines to prevent wrinkles.

An embodiment of the present invention provides a semi-hardened and flexible sticker body in a molding mold, so that the sticker body is adhered to an object such as a fingernail or toenail, and the molding mold is pressed to adhere the sticker body to the object. It can be cured and molded to fit the shape of the object, providing a nail sticker with an excellent fit.

Additionally, in an embodiment of the present invention, the length of the nail sticker extending to the outside of the object can be adjusted by adjusting the length of the mold.

1 is a perspective view of a moldable nail sticker according to the present invention.
Figure 2 is a cross-sectional view taken along line AA of Figure 1.
Figure 3 is a cross-sectional view taken along line BB of Figure 1, showing a moldable nail sticker according to the first embodiment of the present invention.
Figure 4 is a cross-sectional view taken along line BB of Figure 1, showing a moldable nail sticker according to a second embodiment of the present invention.
Figure 5 is a cross-sectional view taken along line BB of Figure 1, showing a moldable nail sticker according to a third embodiment of the present invention.
Figures 6 to 10 are diagrams showing the use state of the moldable nail sticker according to the present invention.

In order to fully understand the present invention, its operational advantages, and the objectives achieved by practicing the present invention, reference should be made to the accompanying drawings illustrating preferred embodiments of the present invention and the contents described in the accompanying drawings.

Hereinafter, the present invention will be described in detail by explaining preferred embodiments of the present invention with reference to the attached drawings. The same reference numerals in each drawing indicate the same member.

Figure 1 is a perspective view of a moldable nail sticker according to the present invention, Figure 2 is a cross-sectional view A-A of Figure 1, and Figure 3 is a cross-sectional view B-B of Figure 1, a cross-sectional view of a moldable nail sticker according to the first embodiment of the present invention. , Figure 4 is a cross-sectional view taken along line B-B of Figure 1, showing a cross-sectional view of a moldable nail sticker according to a second embodiment of the present invention, and Figure 5 is a cross-sectional view taken along line B-B of Figure 1, showing a moldable nail sticker according to a third embodiment of the present invention. This is a cross-sectional view of a nail sticker.

Referring to Figures 1 to 5, the moldable nail sticker 100 according to the present invention is provided with a mold 110 and a lower surface of the mold 110 and is adhered to an object M such as a fingernail or toenail. It includes a sticker body 130 and a protective film 150 provided on the lower surface of the sticker body 130.

The molding frame 110 according to this embodiment supports the sticker body 130 and serves as a mold to maintain the shape of the sticker body 130.

As shown in FIGS. 1 to 3, the lower surface of the mold 110 is formed in a concave shape corresponding to the shape of the object M, such as a fingernail or toenail.

Since the object M, such as a fingernail or toenail, has a three-dimensional curved surface, the lower surface of the mold 110 has a three-dimensional curved shape corresponding to the shape of the object M. That is, the lower surface of the mold 110 is formed in a shape corresponding to the shape of the object M, such as a fingernail or toenail, and thus has a longitudinal curvature and a widthwise curvature. Additionally, in this embodiment, the nail body of a conventional artificial nail may be used as the mold 110.

The mold 110 may be formed of a synthetic resin material such as poly-methyl methacrylate (PMMA) or acrylonitrile-styrene-butadiene copolymer (ABS), but the scope of the present invention is not limited thereto and is made of metal plate, aluminum, etc. It can be formed from various materials such as plates.

Additionally, in this embodiment, the mold 110 may be separated from the upper surface of the cured sticker body 130 when the sticker body 130, which will be described later, is adhered to and cured on the upper surface of the object M.

Therefore, in this embodiment, the surface tension of the lower surface of the mold 110 is set to 48 dyne/cm or less per unit width, so that the mold 110 can be easily separated from the upper surface of the cured sticker body 130, so that the cured sticker body 130 can be easily separated from the upper surface of the cured sticker body 130. Prevents damage to the upper surface of (130).

Meanwhile, when the sticker body 130 provided on the lower surface of the mold 110 is adhered to the object M and hardened, the mold 110 is not separated from the upper surface of the sticker body 130, but the mold 110 itself You can also use it as the nail body for artificial nails.

Additionally, one end of the molding frame 110 may be disposed on the cuticle layer of fingernails, toenails, etc., and the other end may be disposed to extend outward from the opposite end of the cuticle layer of fingernails, toenails, etc.

In the case where the length of the mold 110 is formed to be longer than the length of the object (M) such as a fingernail or toenail, the sticker body 130 is molded to the mold 110 by a length corresponding to the length of the mold 110. It can be provided on the lower surface of the sticker body 130 so that the end extends outward in the longitudinal direction of the object M.

On the other hand, when the length of the mold 110 is the same as the length of the object (M) or is formed shorter than the length of the object (M), the sticker body 130 provided on the lower surface of the mold 110 is the object (M) ) may only be adhered to the top surface.

The sticker body 130 according to this embodiment is provided on the lower surface of the mold 110 and adheres to an object M such as a fingernail or toenail, and has semi-hardened flexibility.

As shown in FIG. 3, the sticker body 130 includes a semi-cured layer 131 having semi-hardened flexibility provided on the lower surface of the mold 110, and an adhesive layer 132 provided on the lower part of the semi-cured layer 131. Includes.

The semi-hardened layer 131 according to this embodiment is provided on the lower surface of the mold 110, and is laminated on the upper surface of the object M and then cured to have a three-dimensional shape corresponding to the shape of the object M.

As described above, the semi-hardened layer 131 is supported on the lower surface of the mold 110.

Since the lower surface of the mold 110 is formed in a shape corresponding to the shape of the object M, when the semi-cured layer 131 is laminated on the upper surface of the object M and then cured, the upper surface of the semi-cured layer 131 is It has a shape corresponding to the shape of the bottom surface of the mold 110, and the bottom surface of the semi-hardened layer 131 has a shape corresponding to the shape of the top surface of the object M. That is, when the semi-cured layer 131 is hardened, the hardened semi-cured layer 131 has a three-dimensional shape that is the same as or similar to the nail body shape of a conventional artificial nail, so it can have an excellent aesthetic like that of an artificial nail.

The semi-cured layer 131 includes a thermosetting component and a photo-curing component, and the semi-curing layer 131 can be further photo-cured after thermal curing. Additionally, the semi-hardened layer 131 may additionally include filler such as glass fiber.

The semi-cured layer 131 may exist in a form in which thermosetting components and photocurable components are dispersed. The semi-cured layer 131 maintains flexibility by applying heat to a mixture of a thermosetting component and a photocuring component to maintain flexibility, and can be further hardened by photocuring.

In this embodiment, thermal curing refers not only to thermal curing in the conventional sense triggered by thermal crosslinking by heat treatment, but also to partial solidification that occurs when the solvent contained in the polymer or mixture thereof dries. Includes concepts.

In addition, in the present embodiment, the semi-cured layer 131 may maintain a certain degree of flexibility due to the remaining uncured photocurable component despite thermal curing or partial solidification by thermal crosslinking.

Thermosetting ingredients include polyvinyl chloride, polyethylene, polyurethane, polypropylene, polyethylene terephthalate, polyolefin elastomer, ethylene-vinylacetate copolymer, acrylic resin, polystyrene, polyvinylidene chloride, thermoplastic polyurethane (TPU), It may include any one selected from polyester, epoxy resin, acrylic resin, cellulose, polyol, and combinations thereof, and may optionally further include a curing agent.

The polyol can be any common polyol used in the synthesis of polyurethane resin without limitation. The content of polyol is not particularly limited and can be determined considering flexibility, hardness, and wear resistance. And the curing agent is not particularly limited as long as it can form the thermosetting component.

The photocurable component includes at least one of photopolymerizable monomers, oligomers, and combinations thereof, and a photoinitiator.

For example, the photocurable component has at least one epoxy group in the molecule, a bifunctional or higher polyfunctional epoxy-based (meth)acrylate monomer, and at least one silicon in the molecule, and a penta-functional or higher polyfunctional silicone-based (meth)acrylate monomer. It may include an acrylate oligomer and a photoinitiator.

The photopolymerizable monomer or oligomer may be, for example, any one of epoxy (meth)acrylate, polyurethane (meth)acrylate, polyester (meth)acrylate, etc.

Photoinitiators initiate reactions by the action of light, for example, ethylphenyl phosphinate, trimethylbenoyl phosphinoxide, alpha amino ketone, alpha hydroxy ketone, acyl phosphine oxide, benzyldimethyl ketal, benzophenone. , cationic (BASF), metallocene, phenylglyoxylate series initiator, etc. can be used, but the scope of the present invention is not limited thereto.

The above-mentioned semi-cured layer 131 is formed by manufacturing a composition containing a thermosetting component and a photo-curing component, supporting the liquid semi-curing layer 131 on the lower surface of the mold 110, and then forming the liquid semi-curing layer 131. It is formed by heat curing. In this way, by supporting and thermally curing the liquid semi-cured layer 131 on the lower surface of the mold 110, the semi-cured layer 131 having an upper surface shape corresponding to the lower surface shape of the mold 110 can be easily prepared. .

Additionally, the semi-cured layer 131 can be formed by heat-curing the liquid semi-cured layer 131 and then attaching it to the lower surface of the mold 110.

Since the photocurable component remains in the semi-cured layer 131, a certain degree of flexibility can be maintained.

The semi-cured layer 131 formed by thermal curing exists in a dispersed form with a photo-curable component, and the photo-curable component can then undergo an additional photo-polymerization reaction through irradiation of a predetermined amount of light energy. That is, after the user adheres the adhesive layer 132 of the sticker body 130 to the object M, such as a fingernail or toenail, and presses the mold 110 to make the sticker body 130 adhere to the object M, , the semi-hardened layer 131 can be hardened by photocuring.

The adhesive layer 132 according to this embodiment is provided on the lower part of the semi-hardened layer 131 and adheres to an object M such as a fingernail or toenail.

The adhesive layer 132 is made of any one of PSA (Pressure sensitive adhesive), a vinyl monomer-based polymerized adhesive, a rubber-based adhesive, and a polyurethane-based two-component adhesive, or a blend of these. You can.

The adhesive force of the adhesive layer 132 is preferably 300 to 25,000 gf/in. Adhesion can be measured using ASTM D3330 180 degree PEEL TEST.

For example, when attaching the adhesive layer 132 on which the semi-hardened layer 131 is laminated to the object M, if the adhesive force of the adhesive layer 132 is less than 300 gf/in, the adhesive layer 132 is attached to the object (M). M) can be lifted and easily separated from the object (M), and if the adhesive force of the adhesive layer (132) exceeds 25,000 gf/in, the user can separate the adhesive layer (132) from the object (M) for replacement. When doing so, the object (M) may be damaged. Therefore, the adhesive force of the adhesive layer 132 is preferably 300 to 25,000 gf/in.

Meanwhile, when a double-sided tape, etc. is used as the adhesive layer 132, wrinkles, etc. may occur when the double-sided tape is laminated on an object M having a three-dimensional curved surface. Accordingly, a plurality of full color lines (not shown) are formed in the adhesive layer 132 to prevent wrinkles from occurring in the adhesive layer 132 when the adhesive layer 132 is laminated on the object M. That is, when the planar adhesive layer 132 is laminated on an object M having a three-dimensional curved surface, wrinkles, etc. may be generated in the adhesive layer 132 due to the curvature of the object M, and these wrinkles are adhesive. This can be prevented by adjusting the length, shape, and spacing of the plurality of cut lines formed in the layer 132.

Meanwhile, as shown in FIG. 4, the sticker body 130 according to this embodiment may further include a base layer 133 provided between the adhesive layer 132 and the semi-hardened layer 131, as shown in FIG. 5. As described above, the sticker body 130 according to this embodiment may further include a printing layer 134 provided between the base layer 133 and the adhesive layer 132. Although not shown, in this embodiment, a printing layer 134 may be provided between the base layer 133 and the semi-cured layer 131.

The base layer 133 according to this embodiment is intended to improve the strength of the sticker body 130 and can be laminated on the adhesive layer 132.

The base layer 133 is made of polyvinyl chloride, polyethylene, polyurethane, polypropylene, polyethylene terephthalate, polyolefin elastomer, ethylene-vinylacetate copolymer and acrylic resin, polystyrene, polyvinylidene chloride, thermoplastic polyurethane ( It may be formed of any one selected from TPU), polyester, and combinations thereof. However, the material of the base layer 133 listed above is only an example, and the scope of the present invention is not limited thereto. Additionally, the base layer 133 may additionally include filler such as glass fiber.

Meanwhile, the base layer 133 may be prepared in a cured state or in a semi-cured state in which it is laminated on the upper surface of the object M and then cured. When the base layer 133 is provided in a semi-cured state, the base layer 133 may be formed in the same manner as the semi-cured layer 131 described above, so detailed description thereof will be omitted.

The printing layer 134 according to this embodiment provides color or design.

The printing layer 134 may be printed in one color on the entire upper or lower surface of the base layer 133, but is not limited to this and divides the entire upper or lower surface of the base layer 133 into a plurality of regions, each region You can also print different colors or certain colors repeatedly.

That is, the printing layer 134 is gravure printing, silk printing, flexo printing, digital printing, laser printing, UV printing, master printing, rotary printing, sealing printing, offset printing, and pad printing on the upper or lower surface of the base layer 133. It can be formed by printing, screen printing, air brushing using an air gun, spraying, flocking, etc.

Additionally, the printing layer 134 may be a transparent or opaque film or sheet laminated on the base layer 133.

Additionally, the printing layer 134 may be a transparent holographic film with various holographic patterns, patterns, etc. formed on one side of the base film. Hologram films change in various colors or patterns depending on the viewing direction. Additionally, the base film used in the transparent hologram film may be made of a polymer resin that is the same as or similar to the material of the base layer 133 described above.

On the other hand, the printing layer 134 made of a transparent holographic film or sheet is a stiff material, so when it is laminated on an object M such as a fingernail or toenail with a three-dimensional curved surface, the printing layer 134 may have wrinkles. etc. may occur.

Accordingly, a plurality of full color lines (not shown) are formed on the printing layer 134 to prevent wrinkles from occurring in the printing layer 134 when the printing layer 134 is laminated on the object M. That is, when the flat printed layer 134 is laminated on an object M having a three-dimensional curved surface, wrinkles, etc. may be generated in the printed layer 134 due to the curvature of the object M, and these wrinkles may occur during printing. This can be prevented by adjusting the length, shape, and spacing of the plurality of cut lines formed in the layer 134.

The protective film 150 according to this embodiment is provided on the lower surface of the sticker body 130, that is, the lower surface of the adhesive layer 132 to protect the sticker body 130. Additionally, the protective film 150 protects the adhesive layer 132 until the sticker body 130 is adhered to the object M.

In addition, the protective film 150 has release properties and includes a semi-cured layer 131 and an adhesive layer 132 or a semi-cured layer 131 and a base layer 133 and an adhesive layer 132 or a semi-cured layer 131 and a printing layer ( 134), the base layer 133, and the adhesive layer 132 are integrally separated from the protective film 150.

The protective film 150 is made of paper, polyvinyl chloride (PVC), polyethylene (PE), polyurethane (PU), polypropylene (PP), and polyethylene terephthalate (Polyethylene). A film or sheet made of any one selected from terehthalate (PET), polyolefin elastomer (POE), ethylene-vinyl acetate copolymer (EVA), and acrylic resin, or a polymer thereof It can be manufactured by surface coating with silicon, fluorine, etc.

In this embodiment, the surface tension of the protective film 150 is set to 36 dyne/cm or less per unit width, so that the adhesive layer 132 is easily separated from the protective film 150 and at the same time, the rupture and pop-up phenomenon of the protective film 150 is prevented. prevent.

On the other hand, since the protective film 150 is made of a stiff material, when it is adhered to the lower surface of the sticker body 130, specifically the adhesive layer 132, which has a shape corresponding to the shape of the object M, the protective film 150 Wrinkles, etc. may occur at (150).

Accordingly, a plurality of cutting lines 151 are formed on the protective film 150 to prevent wrinkles occurring in the protective film 150 when the protective film 150 is adhered to the adhesive layer 132. Here, the cutting line 151 may be a full-cut line or a half-cut line.

That is, when the flat protective film 150 is adhered to the adhesive layer 132 having a three-dimensional curved surface, wrinkles, etc. may occur in the protective film 150 due to the curvature of the adhesive layer 132, and these wrinkles may occur in the protective film 150. This can be prevented by adjusting the length, shape, spacing, etc. of the plurality of cutting lines 151 formed on the protective film 150.

The operation of attaching the moldable nail sticker 100 according to the present invention configured as described above to an object M such as a fingernail or toenail is described as follows.

Figures 6 to 10 are diagrams showing the use state of the moldable nail sticker according to the present invention.

Referring to Figure 6, first, the protective film 150 is separated from the sticker body 130. When the protective film 150 is separated, the adhesive layer 132 of the sticker body 130 is exposed.

And as shown in FIG. 7, the lower surface of the sticker body 130, that is, the adhesive layer 132, is brought into close contact with the nail (M) and the upper surface of the mold 110 is pressed to attach the adhesive layer 132 to the nail (M). ) is adhered to.

The entire upper surface of the mold 110 is pressed with a predetermined force so that the entire area of the flexible sticker body 130 does not lift off the upper surface of the nail M.

As shown in FIG. 8, while the mold 110 and the sticker body 130 are adhered and laminated to the nail M, UV light is irradiated to photocure the sticker body 130.

And as shown in FIG. 9, when the sticker body 130 is photo-cured, the mold 110 is separated from the sticker body 130. As shown in FIG. 10, when the mold 110 is separated, only the cured sticker body 130 remains adhered to the upper surface of the nail M. Meanwhile, if the mold 110 itself is to be used as the nail body of an artificial nail, it can be used without separating the mold 110 from the sticker body 130.

As described above, the sticker body 130 having semi-hardened flexibility is prepared in the mold 110, and the sticker body 130 is adhered to the nail M and photo-cured to produce a nail sticker 100 having a three-dimensional shape. can be placed in a stacked manner on the nail (M), thereby realizing the aesthetics of conventional artificial nails.

Additionally, by making the length of the mold 110 longer than the length of the nail M, the nail sticker 100 having a three-dimensional shape can be arranged to extend outward from the nail M.

In addition, since the sticker body 130 is flexible, it can be molded to fit the shape of the nail without lifting from the nail M, thereby improving the fitting feeling.

As such, the present invention is not limited to the described embodiments, and it is obvious to those skilled in the art that various modifications and changes can be made without departing from the spirit and scope of the present invention. Accordingly, such modifications or variations should be considered to fall within the scope of the claims of the present invention.

100: Nail sticker 110: Molding frame
130: sticker body 131: semi-cured layer
132: Adhesive layer 133: Base layer
134: Printing layer 150: Protective film

Claims (11)

A molding frame whose lower surface is formed in a concave shape corresponding to the shape of the object and which is detachable after being laminated on the object; and
A moldable nail sticker comprising a sticker body provided on the lower surface of the mold, having semi-hardened flexibility, and having a three-dimensional shape by being adhered to the object and then hardened. According to paragraph 1,
A moldable nail sticker in which the sticker body is brought into close contact with the object and the mold is pressed to adhere the sticker body to the object, then the sticker body is cured and the mold is separated from the sticker body. According to paragraph 1,
A moldable nail sticker where, when the length of the mold is formed to be longer than the length of the object, the sticker body is arranged to extend outward in the longitudinal direction from the upper surface of the object. According to paragraph 1,
The sticker body is,
A semi-hardened layer provided on the lower surface of the mold and having semi-hardened flexibility; and
A moldable nail sticker including an adhesive layer provided below the semi-hardened layer. According to clause 4,
The semi-cured layer contains a thermosetting component,
The semi-cured layer is formed on the lower surface of the mold by supporting and heat-curing the liquid semi-cured layer on the lower surface of the mold, or is formed by being in close contact with the lower surface of the mold after the liquid semi-cured layer is heat-cured. Moldable nail stickers. According to clause 4,
The semi-cured layer contains a photocurable component,
A moldable nail sticker in which the adhesive layer is adhered to the object and then the semi-cured layer is photocured. According to clause 4,
The sticker body is,
It further includes a base layer provided between the adhesive layer and the semi-cured layer,
The base layer is,
Polyvinyl chloride, polyethylene, polyurethane, polypropylene, polyethylene terephthalate, polyolefin elastomer, ethylene-vinylacetate copolymer and acrylic resin, polystyrene, polyvinylidene chloride, thermoplastic polyurethane (TPU), polyester and A moldable nail sticker formed from any one selected from a combination of these. In clause 7,
A moldable nail sticker wherein the base layer further includes glass fiber. In clause 7,
The sticker body is,
A moldable nail sticker further comprising a printing layer provided between the base layer and the semi-cured layer or between the base layer and the adhesive layer. According to paragraph 1,
A moldable nail sticker where the surface tension of the mold is less than 48 dyne/cm per unit width. According to paragraph 1,
A moldable nail sticker further comprising a protective film provided on the lower surface of the sticker body to protect the sticker body and having a plurality of cutting lines to prevent wrinkles.

Images