KR20170111126A - Genuine verification label for representing the three-dimensional image and hidden image - Google Patents

Abstract

More particularly, the present invention relates to a label for confirming authenticity of a stereoscopic image and a hidden image, and more particularly, to a label for authenticity confirmation that represents a stereoscopic image and a hidden image, and more particularly to a lenticular lens having a plurality of semi-circular convex lenses arranged in parallel, An identification mark formation unit including a focal length layer provided below the three-dimensional lens layer, and an image forming layer provided below the focal length layer; A transparent protective film part positioned on the upper surface of the stereoscopic lens layer of the identification mark forming part and the lower surface of the image forming layer to be coated; And a bonding portion on the bottom surface of the image forming layer of the identification mark forming portion and coated with a hotmelt adhesive so as to be bonded to the bottom surface of the transparent protective film portion coated with the hotmelt adhesive, wherein the image forming layer has a thickness of 50 to 200 nanometers And a plurality of nanostructures protruding at an interval and a height of the nanostructure and the focal length layer are periodically and regularly arranged, and the nanostructure and the focal length layer are formed of a medium having a refractive index different from that of the nanostructure and the focal length layer .

Description

[0001] The present invention relates to a label for authenticating a three-dimensional image and a hidden image,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an authenticity label, and more particularly, to an authenticity label for representing a stereoscopic image and a hidden image.

In general, a label is a piece of information such as a product name or a trademark attached to a piece of information on a piece of paper or the like. The label is often used for the purpose of displaying the origin of the article, the content of the article, quality, and the like. In addition, the label can be used as a means of identifying the authenticity of a specific source of the article.

In recent years, counterfeit copies of high-priced luxury goods have been frequently circulated, and a variety of genuine product discrimination methods have been developed to prevent such acts. One of the methods for authentic identification is to attach a label made of thin gold or laser engraving to an authentic product so that it can not be forged easily by others. However, due to the development of printing technology and gold foil technology, even the label can not be reproduced easily, so that the purpose is not sufficiently achieved.

Thus, new label manufacturing techniques such as labels (see Patent Application No. 10-2005-0032390) through print processing causing color change by heat are being developed. In addition, a technique has been developed to display a trademark or the like only when a label is viewed at a specific angle by constructing a label using a hidden image that appears when a specific image is not displayed in a normal state and a specific state is changed .

The hidden image may be expressed by printing on a transparent or translucent substrate in a form difficult to identify specific information due to saturation and brightness, and then identifying the hidden information by comparing the substrate with the light of the monitor (See U.S. Patent No. 5,984,367). That is, conventional hidden image expressions use a method of inducing visual illusion by making the background or image painted with dyes or pigments differ in brightness or saturation, or making the background or image composed of fine and complex patterns or symbols.

As described above, a label produced by printing using conventional dyes or pigments is merely a representation of two-dimensional image, and there is a problem of discoloration due to ultraviolet rays of dyes or pigments.

Korean Registered Patent No. 10-1341072 (registered on December 06, 2013)

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above problems, and it is an object of the present invention to provide an identification mark formation unit including a stereoscopic lens layer, a focal length layer and an image forming layer, And a bonding portion on the bottom surface of the transparent protective film portion positioned on the lower surface of the image forming layer of the identification mark forming portion and coated with a hotmelt adhesive so as to be bonded to the article, , The image forming layer of the identification mark forming section includes an aggregate in which a plurality of nanostructures protruding at intervals and height of 50 to 200 nanometers are periodically and regularly arranged, and between the nanostructure and the focal length layer, And a medium having a refractive index different from that of the focal length layer, It is possible to realize a desired color and shape image only by design, and it can be expressed in one plate without superimposing color and shape representation up to 10 micron nano unit, and the expression of single color and full- It is therefore an object of the present invention to provide an authentic label for expressing a stereoscopic image and a hidden image that can be manufactured in a complicated manner.

It is still another object of the present invention to provide an image forming apparatus including a hidden image forming unit for forming a nano structure so that an image appears only at predetermined viewing angles and a predetermined visual field focal length, And a general image forming unit for forming a nano structure so that an image is displayed at an angle and a focal distance outside the distance, and the hidden image forming unit is configured to include at least one selected from the group including characters, symbols, And to provide a label for authenticity confirmation that expresses a stereoscopic image and a hidden image configured to be displayed.

In order to achieve the object of the present invention, a label for authenticity confirmation representing a three-dimensional image and a hidden image according to the present invention includes a lenticular lens in which a plurality of semicylindrical convex lenses are arranged in parallel, or a plurality of semicircular convex lenses An identification mark forming unit including a three-dimensional lens layer including a continuously arranged microlens, a focal length layer provided below the three-dimensional lens layer, and an image forming layer provided below the focal length layer; A transparent protective film part positioned on the upper surface of the stereoscopic lens layer of the identification mark forming part and the lower surface of the image forming layer to be coated; And a bonding portion on the bottom surface of the image forming layer of the identification mark forming portion and coated with a hotmelt adhesive so as to be bonded to the bottom surface of the transparent protective film portion coated with the hotmelt adhesive, wherein the image forming layer has a thickness of 50 to 200 nanometers And a plurality of nanostructures protruding at an interval and a height of the nanostructure and the focal length layer are periodically and regularly arranged, and the nanostructure and the focal length layer are formed of a medium having a refractive index different from that of the nanostructure and the focal length layer .

The transparent protective film part of the present invention may be composed of an upper layer and a lower layer or may be composed only of a lower layer, the upper layer is located on the upper surface of the stereoluminescent layer of the identification mark forming part, and the lower layer is located on the lower surface of the image forming layer of the identification mark forming part The upper layer is formed to be shorter or equal to the lower layer so that the end of the transparent protective film is formed thinner than the central part, and the lower layer can be composed of only a hot-melt adhesive layer.

The adhesive portion of the present invention is bonded to the article through a hotmelt adhesive which is a thermoplastic resin and the label for authenticity confirmation is at least one or more selected from the group consisting of clothes, shoes, bags, caps, ties and scarves And is used in combination with the article to confirm whether or not the article is authentic.

In the identification display forming part of the present invention, the height of the plurality of nanostructures is set to be smaller than the pitch distance between the nanostructures, wherein the pitch distance, height and shape of the nanostructure are set such that the wavelength Is formed to correspond to a color to be expressed.

The image forming layer of the identification mark forming portion of the present invention may include a hidden image forming portion that forms a nanostructure so that the image appears only at predetermined viewing angles and a predetermined visual field focal distance; And a general image forming unit for forming the nanostructure so that an image appears at an angle and a focal distance outside a predetermined angle of view and a predetermined visual field focal distance of the hidden image forming unit.

The hidden image forming portion of the present invention includes a nanostructure formed so that at least one selected from the group including characters, symbols and patterns identifying the article appears at the predetermined viewing angle and a predetermined visual field focal length .

As described above, the technical problem solving pursued by the present invention is to provide an identification mark formation unit including a stereoscopic lens layer, a focal length layer, and an image-forming layer, And a bonding portion on the bottom surface of the transparent protective film portion positioned on the lower surface of the image forming layer of the identification mark forming portion and coated with a hotmelt adhesive so as to be bonded to the product, The negative image forming layer includes an aggregate in which a plurality of nanostructures protruding at intervals and height of 50 to 200 nanometers are periodically and regularly arranged, and between the nanostructure and the focal length layer, the nanostructure and the focal distance layer And a refractive index different from each other. Thus, it is possible to obtain a desired refractive index without using a dye or pigment, Color and shape images can be implemented. Up to 10 micron nano units can be represented on one plate without superimposing color and shape representations. Also, single color and full color representation can be achieved according to the structure design. So that it is possible to produce a sophisticated label, and it is possible to solve the problem of manufacturing the duplicate of the label.

In addition, according to the present invention, there are provided a hidden image forming section for forming a nanostructure so that an image is displayed at predetermined viewing angles and a predetermined visual field focal length, and a predetermined image forming section for forming a nanostructure, And a general image forming section for forming a nano structure so that an image appears at an angle and a focal distance, and the hidden image forming section is configured to include at least one selected from the group including characters, symbols, As a result, an identification mark appears only at a specific time, which is advantageous in that it can be used as an authenticity label for displaying various images at a normal time.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 and Fig. 2 are diagrams showing the configuration of a label for authenticity confirmation expressing a stereoscopic image and a hidden image according to the present invention. Fig.
3 is a view showing a configuration of an identification mark forming unit of a label for authenticity confirmation according to the present invention.
4 shows an image forming layer in a label for authenticity verification according to the present invention.
5 is a view showing a configuration of an image forming layer according to another embodiment of the present invention.
6 and 7 are views showing a use state in which the label for authenticity confirmation according to the present invention is used in combination with the article.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the drawings, the same reference numerals are used to designate the same or similar components throughout the drawings. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear. Further, the preferred embodiments of the present invention will be described below, but it is needless to say that the technical idea of the present invention is not limited thereto and can be practiced by those skilled in the art.

FIG. 1 is a view showing the construction of a label for authenticity confirmation representing a three-dimensional image and a hidden image according to the present invention, and FIG. 2 is a view showing the structure of a label for identification of an authenticity label according to the present invention.

As shown in FIGS. 1 and 2, an authenticity label for representing a stereoscopic image and a hidden image according to the present invention includes a stereoscopic lens layer 110, a focal length layer 120, and an image forming layer 130 A transparent protective film 300 coated on the upper and lower surfaces of the identification mark forming unit 100 and a transparent protective film 300 coated on the lower surface of the identification mark forming unit 100. [ The lower surface of the film 300 may include a hot-melt adhering part 400 to which a hot-melt adhesive is applied to be coupled with the article.

The identification mark forming unit 100 serves to form an identification mark of the article to which the label for identifying the authenticity is attached. The stereoscopic image can be implemented using the stereoscopic lens and the plurality of nanostructures.

The structure of the identification mark formation unit 100 can be expressed on a single plate without superimposing color and shape representations up to 10 microns or less in nano units, and the expression of single color and full- It is possible to produce sophisticated labels. Therefore, the label proposed in the present invention can faithfully perform the authenticity checking function because duplication is technically and economically difficult.

The stereoscopic lens reconstructs a 2D image as a three-dimensional image using a lenticular lens or a microlens using an optical illusion effect principle caused by binocular parallax. Conventionally, a stereoscopic image representation method using a stereoscopic lens uses a stereoscopic effect and various conversion effects of a corresponding image by combining a lenticular lens or a microlens on an image represented by a dye or a pigment.

In other words, Binocular Disparity, which is caused by the presence of the human eye at a distance of about 65mm in the lateral direction, is used as the most important factor for feeling the three-dimensional effect. When a three-dimensional lens is used, Effect of the three-dimensional image can be obtained by using the two-dimensional plane image.

In the stereoscopic lens, the image is located at the lower part of the lens layer and is expressed through a print layer formed of a dye or a pigment. The method of expressing an image using the dye or pigment in this way is a problem of discoloration due to ultraviolet rays of a dye or a pigment . Further, in order to obtain a stereoscopic shape by providing a stereoscopic lens on the printing surface, there is a problem that it is difficult to obtain a desired image by overlapping halftone dots.

On the other hand, feathers of butterflies and birds exhibit distinctive colors without having pigment, which is due to diffraction, interference, and scattering of light by specific structures. That is, when light is irradiated on fine wrinkles or regularly arranged structures, only the light of a specific wavelength is reflected to express the color of the corresponding wavelength. The inventors of the present invention have developed a method of expressing stereoscopic color images which are not precisely deformed through the structural design without using dyes or pigments, and apply them to labels for authenticity confirmation.

Hereinafter, the specific configuration of the identification mark forming unit 100 will be described in detail.

2, the three-dimensional lens layer 110 includes a lenticular lens 111 in which a plurality of semicircular convex lenses are arranged in parallel, or a micro lens 112 in which a plurality of semicircular convex lenses are continuously arranged. And the like. The convex lens may be formed with a predetermined refractive index and the cross section may be formed with an aspherical surface.

According to one embodiment of the present invention, unlike the general stereoscopic lens layer, the cross section can be formed of an aspherical surface having an extremely high angle of view. By adopting such a configuration, when a flat coating layer having a low refractive index is coated on the surface of a lens, a phenomenon that the angle of view becomes narrow due to having a double refractive index can be solved.

Further, by configuring it as an aspheric surface, the focal length can be adjusted. When the power of the lens is increased, the focal distance is shortened. When the power is small, the focal distance becomes long, so the power is increased to thin the lens.

The focal length layer 120 may be provided under the three-dimensional lens layer 110 to match the focal length corresponding to the radius of curvature. That is, the focal length layer 120 having an appropriate thickness can be formed according to the curvature, thickness, image size, and size and position of the stereoscopic color image to be displayed.

The image forming layer 130 is provided at a lower portion of the focal length layer 120 and includes a plurality of nanostructures 131 protruding at an interval of 50 to 200 nanometers and arranged periodically and regularly And a medium 132 having a refractive index different from that of the nanostructure 131 and the focal length layer 120 may be provided between the nanostructure 131 and the focal distance layer 120.

Preferably, the height of the plurality of nanostructures 131 may be smaller than the pitch distance between the nanostructures 131. More preferably, the height of the nanostructure 131 is 50 to 100 nm, and the pitch distance between the nanostructures 131 is 150 to 200 nm.

The pitch distance, the height and the shape of the nanostructure 131 can be formed so that the wavelength reflected by the nanostructure 131 when natural light is irradiated corresponds to the color to be expressed. That is, the nanostructure 131 may be formed at a predetermined pitch, and may have a predetermined height, and the spacing and height may be determined according to a pattern or a color display reference according to a light reflection wavelength.

Fig. 3 is a view showing an image forming layer in a label for authenticity confirmation according to the present invention. As shown in FIG. 3, light can be recognized as a specific shape by the light reflected or reflected by the nanostructure 131 and reflected. In addition, a part or all of the plurality of nanostructures 131 may be formed by stacking a plurality of nanostructures 131, and the laminated structure may be formed of a material having a different refractive index, Likewise, they may be staggered to the left and right by a predetermined width. The shape of the nanostructure 131 in FIG. 3 is not limited to this, and various nano-sized structures may be formed to display images according to light reflection wavelengths.

The nano structure 131 may be formed of one or more materials selected from the group consisting of polyethylene terephthalate (PET), polycarbonate (PC), ultraviolet resin (UV Resin), epoxy resin (Epoxy Resin), and acrylic resin As shown in FIG.

The nano structure 131 and the focal distance layer 120 may be air or vacuum. In the case of air or vacuum, an outer coating (not shown) for forming the outer surface of the three-dimensional lens sheet should be provided.

In the present invention, a method of expressing an image through the structural design of the nanostructure 131 is adopted. Since a stereoscopic lens layer 110 and a focal length layer 120 are coupled to an upper portion of the image forming layer 130 , The nanostructure 131 is formed inside the label, so that the shape can be maintained and protected from the external environment without a separate protective layer. That is, the present invention adopts a structure in which the stereoscopic lens layer 110 and the like are provided on the nano structure 131, so that stereoscopic images can be expressed very stably and effectively.

4 is a view showing a configuration of an image forming layer according to another embodiment of the present invention. 4, according to another embodiment of the present invention, the structure of the image forming layer 130 is divided into the hidden image forming unit 133 and the general image forming unit 134, The identification mark is displayed only at the visual field focal length, so that it becomes possible to use it as a decoration having various images at a normal time.

Specifically, the image-forming layer 130 includes a hidden image-forming portion 133 and a hidden image-forming portion 133 that form a nanostructure such that the image appears only at predetermined viewing angles and a predetermined focal- And a general image forming unit 134 that forms the nanostructure 131 so that an image appears at an angle and a focal distance outside a predetermined viewing angle and a predetermined angle of view.

Preferably, the hidden image forming unit 133 forms at least one selected from the group including characters, symbols, and patterns identifying the article to be displayed at a predetermined viewing angle and a predetermined visual field focal length, (131). That is, as shown in FIG. 4, various images that can be sensed by the aesthetic sense are displayed at a general view, and an identification mark (hidden image) is displayed only when a label is observed at a very close distance. And an aesthetic function at the same time.

The transparent protective film part 300 may be composed of an upper layer 310 and a lower layer 320 or may be composed only of a lower layer 320 and the upper layer 310 may be composed of a solid lens layer And the lower layer 320 is located on the lower surface of the image forming layer 130 of the identification mark forming unit 100. The upper layer 310 and the lower layer The upper layer 310 is configured to be shorter than the lower layer 320 as shown in FIG. 1 (b) so that the end of the transparent protective film part 300 is formed to be thinner than the central part . That is, the size of the transparent protective film part 300 is determined depending on the size of the identification mark forming part 100, and is formed to cover at least 0.5 mm or more of the end of the identification mark forming part 100, The upper layer 310 of the lower layer 320 may be formed to be shorter than the lower layer 320 by 1 to 3 mm or the lower layer 320 may be coated without using an upper layer as shown in FIGS. . Here, the lower layer 320 may be composed of only a hotmelt adhesive layer which is a thermoplastic resin.

The lower surface of the transparent protective film 300 coated on the lower surface of the identification mark forming part 100 is formed with a bonding part 400 coated with a hotmelt adhesive to be coupled with the product. The hotmelt adhesive is a thermoplastic resin which is melted by heating. The material is selected from the group consisting of polyurethane (PU), thermoplastic polyurethane (TPU), polyester, EVA, polyamide (PA) Etc., and the type is classified into a liquid type, a powder type, a film type, and a breathable type.

The adhesive portion 400 is bonded to the article through a hotmelt adhesive. The label for authenticity confirmation is combined with at least one item selected from the group including clothes, shoes, bags, hats, ties, scarves, And is used to check whether the goods are authentic.

5 and 6 are views showing a use state in which the label for authenticity confirmation according to the present invention is used in combination with an article. As shown in FIGS. 5 and 6, the label for authenticity confirmation according to the present invention may be attached to the outer side or inner side of the garment 10 to perform a function of displaying a certain pattern. The identification mark of the article may be displayed. It may also be coupled to one side of the cap 20, as shown in Fig.

As the binding method to the product of the label for authenticity confirmation according to the present invention, the adhesive portion 400 is placed so as to touch the surface of the article, and the adhesive is applied under conditions of a temperature of about 80 to 260 degrees, a pressure of 50 kg / , A label for authenticating the authenticity can be bonded to the article through a process of applying heat and pressure to the article with a transferring machine such as a heat-resistant rubber-like elastic body and cooling the article.

It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. It will be possible. Therefore, the embodiments disclosed in the present invention and the accompanying drawings are intended to illustrate and not to limit the technical spirit of the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments and the accompanying drawings . The scope of protection of the present invention should be construed according to the following claims, and all technical ideas within the scope of equivalents thereof should be construed as being included in the scope of the present invention.

10: Clothing 20: Hat
100: identification mark forming unit 110:
120: focal length layer 130: image forming layer
131: nanostructure
132: Nano structure and focal distance layer and medium with different refractive index
133: hidden image forming unit 134: general image forming unit
300: transparent protective film part 310: upper layer
320: lower layer 400:

Claims (6)

A three-dimensional lens layer including a plurality of semicylindrical convex lenses arranged in parallel with each other, or a lenticular lens in which convex lenses of a plurality of semicircular lenses are arranged in parallel, or a microlens in which a plurality of semicircular convex lenses are arranged continuously; And an image forming layer provided below the focal length layer;
A transparent protective film part positioned on the upper surface of the stereoscopic lens layer of the identification mark forming part and the lower surface of the image forming layer to be coated; And
And a bonding portion having a bottom surface of the transparent protective film portion positioned on the lower surface of the image forming layer of the identification mark forming portion and coated with a hotmelt adhesive so as to be bonded to the article,
Wherein the image forming layer includes an aggregate in which a plurality of nanostructures protruding at intervals and height of 50 to 200 nanometers are periodically and regularly arranged, and between the nanostructure and the focal length layer, And a medium having a refractive index different from that of the focal length layer.
The method according to claim 1,
The transparent protective film portion may include:
The upper layer and the lower layer, or only the lower layer,
The upper layer is positioned on the upper surface of the stereoluminescent layer of the identification mark forming portion,
The lower layer is located on the lower surface of the image forming layer of the identification mark forming portion,
The upper layer is configured to be shorter or equal to the lower layer so that the end of the transparent protective film portion is thinner than the central portion,
And the lower layer can be composed of only a hot-melt adhesive layer.
The method according to claim 1,
The adhesive portion
Which is bonded to the article through a hotmelt adhesive which is a thermoplastic resin,
Wherein the authenticity label is used to confirm whether the product is genuine or not by being combined with at least one or more articles selected from the group consisting of clothes, shoes, bags, caps, ties and scarves. Label for authenticity verification.
The method according to claim 1,
In the identification display forming section,
The height, height, and shape of the nanostructure may be set so that the wavelength reflected by the nanostructure when natural light is irradiated corresponds to the color to be expressed, and the height of the plurality of nanostructures is smaller than the pitch distance between the nanostructures. And a label for authenticity confirmation expressing a hidden image.
The method according to claim 1,
Wherein the image-forming layer of the identification-
A hidden image forming unit for forming a nano structure so that the image appears only at predetermined viewing angles and a predetermined visual field focal distance; And a normal image forming unit for forming a nano structure so that an image appears at an angle and a focal distance outside a predetermined angle of view and a predetermined visual field focal distance of the hidden image forming unit. For labels.
6. The method of claim 5,
The hidden image forming unit includes:
Characterized in that at least one selected from the group consisting of letters, symbols and patterns identifying the article includes a nanostructure formed to appear at the predetermined viewing angle and a predetermined visual field focal length. Label for authenticity verification.

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