KR101928168B1 - Nail sticker film - Google Patents

Abstract

A nail sticker film is disclosed. The nail sticker film comprises a thermochromic discoloration layer comprising a first matrix resin and a cyan pigment dispersed in the first matrix resin and having a color reversibly changing on the basis of a reference temperature set between 0 占 폚 and 40 占 폚; And a photochromic layer disposed on the thermochromic layer and including a shading pigment dispersed in the second matrix resin and the second matrix resin and absorbing ultraviolet light and changing color.

Description

Nail Sticker Film {NAIL STICKER FILM}

The present invention relates to a nail sticker film adhered to a nail or toenails.

Manicure is a kind of liquid paint applied to nails or toenails, which enhances the aesthetics of the user's nails and claws and reinforces the mechanical strength to reduce breaks of the nails and toenails. Particularly, in recent years, with the development of nail art, which is called Neil Art, the use of manicure is gradually increasing.

However, in general, when applying a manicure, not only does it require precise work but also a considerable amount of time is required until the manicure is dried. In addition, while the nail polish is drying, foreign matter such as dust adheres to the nail polish and scratches frequently occur. Also, acetone, which is generally used for removing nail polish, is a volatile substance, which can damage the skin.

Recently, nail sticker films have been used to attach and detach to nails or toenails. In this case, too, there is a tendency to frequently replace the nail sticker film due to the increased interest in women's beauty.

It is an object of the present invention to provide a nail sticker film which can realize various colors according to changes in temperature and irradiation with ultraviolet rays.

The nail sticker film according to an embodiment of the present invention comprises a first matrix resin and a thermochromic discolor including a cyan pigment dispersed in the first matrix resin and having a color reversibly changing on the basis of a reference temperature set between 0 ° C and 40 ° C layer; And a photochromic layer disposed on the thermochromic layer, wherein the thermochromic layer includes a second matrix resin and a shading pigment dispersed in the second matrix resin and absorbing ultraviolet light to change color.

In one embodiment, the thermochromic discoloration layer may include a plurality of first openings extending from an upper surface to a first depth or to a lower surface, wherein the photochromic discoloration layer is located on the upper surface of the thermochromic discoloration layer And a plurality of adhesive protrusions protruding from a lower surface of the thin film and filling the first openings, respectively.

In one embodiment, the nail sticker film is disposed between the thermochromic discoloration layer and the photochromic layer, and includes a third matrix resin, and a light mixing layer dispersed in the third matrix resin and including scattering particles scattering light .

In one embodiment, the thermochromic discoloration layer exhibits a first color and a second color different from the first color at a temperature and a temperature lower than the reference temperature, The light mixing layer may further include a fluorescent or phosphorescent material that is dispersed in the third matrix resin and generates light of a different color from the first to fourth colors.

In one embodiment, the light mixing layer includes a plurality of first openings extending from an upper surface to a predetermined depth or a lower surface, the photochromic layer includes a photochromic thin film disposed on an upper surface of the photo mixing layer, And a plurality of adhesive protrusions protruding from a lower surface of the photobleachable thin film and filling the first openings, respectively.

In one embodiment, the optical mixing layer includes a plurality of first openings formed to penetrate from a top surface to a bottom surface, and the thermochromic discoloration layer extends from the top surface to a predetermined depth or to a bottom surface, Wherein the photochromic layer comprises a photochromic discoloration thin film disposed on an upper surface of the photo mixing layer and a second photochromic thin film protruding from a lower surface of the photochromic thin film, And a plurality of adhesive protrusions for respectively filling the two openings.

According to the nail sticker film of the present invention, the thermochromic discoloration layer and the photochromic discoloration layer are laminated, or a light mixing layer is disposed therebetween, thereby designing various colors. Further, two or more of the thermochromic discoloration layer, the photochromic layer and the optical mixed layer may have a structure for enhancing the adhesive force therebetween, thereby preventing them from peeling from each other.

1 is a cross-sectional view illustrating a nail sticker film according to an embodiment of the present invention.
2 is a cross-sectional view illustrating a nail sticker film according to another embodiment of the present invention.
3 is a cross-sectional view illustrating a nail sticker film according to another embodiment of the present invention.
4A and 4B are cross-sectional views illustrating the nail sticker films 400a and 400b according to another embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. The present invention is capable of various modifications and various forms, and specific embodiments are illustrated in the drawings and described in detail in the text. It is to be understood, however, that the invention is not intended to be limited to the particular forms disclosed, but on the contrary, is intended to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention. Like reference numerals are used for like elements in describing each drawing. In the accompanying drawings, the dimensions of the structures are enlarged to illustrate the present invention in order to clarify the present invention.

The terms first, second, etc. may be used to describe various components, but the components should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the first component may be referred to as a second component, and similarly, the second component may also be referred to as a first component.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In the present application, the term " comprises " or " having ", etc. is intended to specify that there is a feature, step, operation, element, part or combination thereof described in the specification, , &Quot; an ", " an ", " an "

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries are to be interpreted as having a meaning consistent with the contextual meaning of the related art and are to be interpreted as either ideal or overly formal in the sense of the present application Do not.

1 is a cross-sectional view illustrating a nail sticker film according to an embodiment of the present invention.

1, the nail sticker film 100 according to an embodiment of the present invention may include a thermochromic discoloration layer 110 and a discoloration layer 120, Or on the nail or claw, which is the nail 10.

The color of the thermochromic discoloration layer 110 may vary based on a predetermined temperature. For example, the thermochromic discoloration layer 110 may exhibit a first color at a temperature lower than a reference temperature for discoloration that is set within a range of about 0 to 40 ° C, and at a temperature above the discoloration reference temperature, Lt; / RTI >

In one embodiment, the thermochromic discoloration layer 110 may include a first matrix resin and a quaternary pigment dispersed in the first matrix resin and reversibly or irreversibly changing color based on a predetermined temperature.

The first matrix resin is not particularly limited as long as it is a resin capable of transmitting light and capable of forming a hard and glossy film. For example, the first matrix resin may be a polyester resin, a sulfonamide resin, a polyurethane resin, a polystyrene resin, a polyamide resin, a polycarbonate resin, a maleic resin, a phenol resin, Based resin, a melamine-based resin, a urea-based resin, a tosylamide-formaldehyde resin, nitrocellulose, and the like.

As the zeolite pigment, a known cyan pigment material can be used without limitation. For example, the zeolite pigment may have a size of about 1 to 10 mu m and may have a microcapsule form in which a thermochromic material is encapsulated therein. The thermochromic discoloring material may be, for example, an electron donor that determines the color, an electron acceptor that determines the color density, and a role of determining the discoloration temperature And the like. The electron donor compound may be, for example, 3,6-dimethoxyfluorane, 3-cyclohexylamino-6-chlorofluorane, 3- 3-Diethylaminobenfraorane, Rhodamine B lactone, Crystal violet lactone, 3-Diethylamino-7- Dibenzylaminofluorane, 3-diethylamino-6-methyl-aminofluorane, and the like. The alcohol compound may be, for example, N-octyl alcohol, N-dectyl alcohol, N-lauryl alcohol, N-cetyl alcohol -Cetyl Alcohol, N-Stearyl Alcohol, and the like.

The photochromic layer 120 is disposed on the thermochromic layer 110, and the color may be changed by ultraviolet irradiation. For example, the photochromic layer 120 may exhibit a third color when ultraviolet light is not irradiated, and may exhibit a fourth color other than the third color when ultraviolet light is irradiated. In this case, the third color and the fourth color may be different colors from the first color and the second color of the thermochromic discoloration layer 110.

In one embodiment, the photochromic layer 120 may include a second matrix resin and a shading pigment dispersed in the second matrix resin and changing color by absorbing sunlight or ultraviolet light.

The second matrix resin is not particularly limited as long as it is a resin capable of transmitting light and capable of forming a hard and glossy film. For example, the second matrix resin may be a polyester resin, a sulfonamide resin, a polyurethane resin, a polystyrene resin, a polyamide resin, a polycarbonate resin, a maleic resin, a phenol resin, Based resin, a melamine-based resin, a urea-based resin, a tosylamide-formaldehyde resin, nitrocellulose, and the like. In one embodiment, when the thermochromic discoloration layer 110 and the photochromic layer 120 are laminated, the second matrix resin may be formed of the thermochromic discoloration layer 110 in order to improve the adhesiveness therebetween. 1 < / RTI > matrix resin.

As the shading pigment, a known shimming pigment material can be used without limitation. For example, the shading pigment may be selected from the group consisting of spiropyrans, spirooxazines, naphthopyrans, diarylethenes such as stilbene, azastilbene Etc.), azobenzene, photochromic quinone compounds (for example, phenoxynaphthacenequinone), and the like.

In the case where the nail sticker film 100 according to the embodiment of the present invention includes the thermochromic discoloration layer 110 and the photochromic layer 120 in which the nail sticker film 100 is laminated and the color developed by the thermochromic discoloration layer 110, The color developed by the photochromic layer 120 may be mixed to exhibit more various colors.

2 is a cross-sectional view illustrating a nail sticker film according to another embodiment of the present invention.

Referring to FIG. 2, the nail sticker film 200 according to another embodiment of the present invention may include a thermochromic layer 210 and a photochromic layer 220. The nail sticker film 200 according to the present embodiment is similar to the nail sticker film 200 described with reference to Fig. 1 except that the thermochromic discoloration layer 210 and the discoloration layer 220 have a structure for enhancing the adhesion therebetween. Is substantially the same as that of the nail sticker film 100, so duplicated detailed explanation is omitted.

If the thermochromic discoloration layer 210 and the discoloration layer 220 are simply laminated, there is a problem that the discoloration layer 220 is partially peeled from the thermochromic discoloration layer 210.

In order to solve such a problem, the thermochromic discoloration layer 210 may include a plurality of first openings formed to a predetermined depth from the upper surface or through the lower surface, A photochromic thin film 221 disposed on the color discoloration layer 210 and a plurality of adhesive protrusions 230 protruding from the lower surface of the photochromic thin film 221 and filling the first opening of the thermal discoloration layer 210 222). In one embodiment, the thermochromic discoloration layer 210 may be formed by applying a composition containing a thermochromic discoloration material on a support (not shown) and then forming the first openings through patterning, The layer 220 is formed by applying a composition including a photochromic material so as to form a thin film having a predetermined thickness on the upper surface of the thermochromic discoloration layer 210 while filling the first opening on the thermochromic discoloration layer 210 formed as described above And then curing it.

In the case where a plurality of first openings are formed in the thermochromic discoloration layer 210 and a plurality of adhesive protrusions 222 filling the first openings are formed in the thermochromic discoloration layer 220, The adhesion area between the coloring layer 210 and the photochromic layer 220 is increased to prevent the photochromic layer 220 from being peeled from the coloring layer 210.

3 is a cross-sectional view illustrating a nail sticker film according to another embodiment of the present invention.

Referring to FIG. 3, the nail sticker film 300 according to another embodiment of the present invention may include a thermochromic discoloration layer 310, a photochromic discoloration layer 320, and a light mixing layer 330. The nail sticker film 300 according to the present embodiment is substantially the same as the nail sticker film 100 described with reference to Fig. 1, except that it further includes the optical mixed layer 330, do.

The light mixing layer 330 is disposed between the thermochromic discoloration layer 310 and the light discoloration layer 320 and is formed by the color produced by the thermal discoloration layer 310 and the discoloration layer 320 You can create a different color from these by mixing colors.

In one embodiment, the light mixing layer 330 may include scattering particles dispersed in the third matrix resin and the third matrix resin and scattering light.

The third matrix resin is not particularly limited as long as it can transmit light and can be adhered to the thermochromic discoloration layer and the discoloration layer by curing. For example, the third matrix resin may be a polyester resin, a sulfonamide resin, a polyurethane resin, a polystyrene resin, a polyamide resin, a polycarbonate resin, a maleic resin, a phenol resin, Based resin, a melamine-based resin, a urea-based resin, a tosylamide-formaldehyde resin, nitrocellulose, and the like.

The light scattering particles are not particularly limited as long as they are organic or inorganic particles capable of scattering incident light. The light scattering particles may have a size of several to several hundred micrometers.

The light mixing layer 330 mixes the light incident from the thermochromic discoloration layer 310 and the light incident from the discoloration layer 320 and mixes the color generated by the thermochromic discoloration layer and the light To generate light of a different color from the color produced by the light source. Meanwhile, in order to generate light of a specific color, the light mixing layer 330 may further include a fluorescent or phosphorescent material together with the light scattering particles.

4A and 4B are cross-sectional views illustrating the nail sticker films 400a and 400b according to another embodiment of the present invention.

4A and 4B, the nail sticker films 400a and 400b according to another exemplary embodiment of the present invention may include thermal sensitive coloring layers 410a and 410b, photochromic layers 420a and 420b, and optical mixed layers 430a and 430b ). The nail sticker films 400a and 400b according to the present embodiments may be formed in such a manner that at least two of the thermochromic discoloration layers 410a and 410b, the photochromic layers 420a and 420b, Is substantially the same as the nail sticker film 300 described with reference to FIG. 3, except that it has a structure for improving the adhesive strength, so that the detailed description will not be repeated.

4A, the light mixing layer 430a may include a plurality of first openings formed to pass through or from the upper surface to a predetermined depth, and the photochromic layer 420a may include a plurality of first openings, A plurality of adhesive protrusions 421a protruding from the lower surface of the photochromic thin film 421a and filling the first openings of the optical mixed layer 430a are formed on the photochromic thin film 421a disposed on the optical mixed layer 430a, Gt; 422a < / RTI > In one embodiment, the light mixing layer 430a may be formed by applying a composition containing light scattering particles on the thermochromic discoloration layer 410a and then forming the first openings through patterning, The layer 420a is formed by applying a composition including a photochromic material so as to form a thin film having a predetermined thickness on the upper surface of the optical mixed layer 430a while filling the first openings on the optical mixed layer 430a formed as described above And then curing it.

4B, the optical mixed layer 430b may include a plurality of first openings formed to pass from the upper surface to the lower surface, and the thermochromic discoloration layer 410b may include a plurality of first openings And a plurality of second openings formed to penetrate from the surface to a predetermined depth or to the lower surface and connected to the first openings, respectively, wherein the photochromic layer 420b is disposed on the light mixing layer 430b, A plurality of adhesive protrusions 421b projecting from the lower surface of the photochromic thin film 421b and filling the first openings of the optical mixed layer 430b and the second openings of the thermochromic discoloration layer 410b, 422b. ≪ / RTI > In one embodiment, the thermochromic discoloration layer 410b and the optical mixing layer 430b may be formed by applying a composition including a thermochromic material to form a thermochromic discoloration thin film, And forming the first and second openings by simultaneously patterning the first and second openings. The photochromic layer 420b may be formed by filling the first and second openings on the optical mixed layer 430b, And applying a composition including a photochromic material so as to form a thin film having a uniform thickness on the upper surface of the optical mixed layer 430b and then curing the composition.

According to the nail sticker film of the present invention, the thermochromic discoloration layer and the photochromic discoloration layer are laminated, or a light mixing layer is disposed therebetween, thereby designing various colors. Further, two or more of the thermochromic discoloration layer, the photochromic layer and the optical mixed layer may have a structure for enhancing the adhesive force therebetween, thereby preventing them from peeling from each other.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the present invention as defined by the following claims. It can be understood that it is possible.

100, 200, 300, 400: Nail sticker film 110, 210, 310, 410:
120, 220, 320, 420: a photochromic discoloration layer 221: a photochromic discoloration film
222: adhesive protrusions 330, 430: optical mixed layer

Claims (6)

delete A thermochromic layer containing a first matrix resin and a cyan pigment dispersed in the first matrix resin and having a color reversibly changing based on a reference temperature set between 0 캜 and 40 캜; And
And a photochromic layer disposed on the thermochromic layer, wherein the photochromic layer comprises a first matrix resin, a second matrix resin, and a shading pigment dispersed in the second matrix resin and absorbing ultraviolet light to change color,
Wherein the thermochromic discoloration layer includes a plurality of first openings extending from an upper surface to a first depth or to a lower surface,
Wherein the photochromic layer comprises a photochromic discoloration thin film located on the upper surface of the thermochromic discoloration layer and a plurality of adhesive protrusions protruding from the lower surface of the discoloration thin film and filling the first openings respectively. Sticker film. A thermochromic layer containing a first matrix resin and a cyan pigment dispersed in the first matrix resin and having a color reversibly changing based on a reference temperature set between 0 캜 and 40 캜; And
And a photochromic layer disposed on the thermochromic layer, wherein the photochromic layer comprises a first matrix resin, a second matrix resin, and a shading pigment dispersed in the second matrix resin and absorbing ultraviolet light to change color,
Further comprising a light mixing layer disposed between the thermochromic discoloration layer and the photochromic layer and including scattering particles dispersed in the third matrix resin and the third matrix resin and scattering light, . The method of claim 3,
The thermochromic discoloration layer exhibiting a first color and a second color different from the first color at a temperature lower than or equal to the reference temperature,
Wherein the light-sensitive color-changing layer changes from the third color to the fourth color when the ultraviolet light is absorbed,
Wherein the optical mixed layer further comprises a fluorescent or phosphorescent material dispersed in the third matrix resin and generating light of a color different from the first to fourth colors. The method of claim 3,
Wherein the optical mixed layer includes a plurality of first openings extending from an upper surface to a predetermined depth or to a lower surface,
Wherein the photochromic layer comprises a photochromic discoloration thin film disposed on an upper surface of the optical mixed layer and a plurality of adhesive protrusions protruding from a lower surface of the photochromic thin film and filling each of the first openings. film. The method of claim 3,
Wherein the light mixing layer includes a plurality of first openings formed to pass from an upper surface to a lower surface,
Wherein the thermochromic discoloration layer includes a plurality of second openings extending from the upper surface to a predetermined depth or lower surface and connected to the first openings,
Wherein the photochromic layer comprises a photochromic thin film disposed on an upper surface of the optical mixed layer and a plurality of adhesive protrusions protruding from a lower surface of the photochromic thin film and filling the first openings and the second openings respectively Features, nail sticker film.

Images