CN113359334A - Integrated anti-counterfeiting changing device of viewer - Google Patents
Integrated anti-counterfeiting changing device of viewer Download PDFInfo
- Publication number
- CN113359334A CN113359334A CN202110673231.9A CN202110673231A CN113359334A CN 113359334 A CN113359334 A CN 113359334A CN 202110673231 A CN202110673231 A CN 202110673231A CN 113359334 A CN113359334 A CN 113359334A
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- viewer
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- counterfeiting
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- cholesteric liquid
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Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
- B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
- B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
- B42D25/30—Identification or security features, e.g. for preventing forgery
- B42D25/36—Identification or security features, e.g. for preventing forgery comprising special materials
- B42D25/378—Special inks
- B42D25/391—Special inks absorbing or reflecting polarised light
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/1313—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells specially adapted for a particular application
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M3/00—Printing processes to produce particular kinds of printed work, e.g. patterns
- B41M3/14—Security printing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M3/00—Printing processes to produce particular kinds of printed work, e.g. patterns
- B41M3/14—Security printing
- B41M3/148—Transitory images, i.e. images only visible from certain viewing angles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
- B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
- B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
- B42D25/30—Identification or security features, e.g. for preventing forgery
- B42D25/36—Identification or security features, e.g. for preventing forgery comprising special materials
- B42D25/364—Liquid crystals
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/137—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering
- G02F1/13718—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering based on a change of the texture state of a cholesteric liquid crystal
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07D—HANDLING OF COINS OR VALUABLE PAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING, DISPENSING, CHANGING OR DEPOSITING
- G07D7/00—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency
- G07D7/06—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency using wave or particle radiation
- G07D7/12—Visible light, infrared or ultraviolet radiation
- G07D7/128—Viewing devices
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Optics & Photonics (AREA)
- Credit Cards Or The Like (AREA)
- Polarising Elements (AREA)
Abstract
The invention provides a viewer integrated anti-counterfeiting modification device, which comprises: a substrate layer; a design printing layer which is positioned on the upper side of the base material layer and is printed with a specific pattern; and the label is positioned on the upper part of the design printing layer and comprises a cholesteric liquid crystal display layer printed with a hidden mark. And comprises: a viewer extending on one side of said substrate layer for viewing said hidden indicia printed on said cholesteric liquid crystal display layer. The anti-counterfeiting and anti-counterfeiting device integrated with the viewer has the advantages of difficult counterfeiting and anti-counterfeiting, simple and convenient manufacture, low manufacture cost and capability of identifying the counterfeiting without other counterfeiting and anti-counterfeiting confirmation devices.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to a viewer integrated anti-counterfeiting modification device.
[ background of the invention ]
Generally, in the technology for certified product authentication, the hologram and the QR code have low technical difficulty and are easy to copy, while the technologies such as NFC (near field communication), RFID (radio frequency identification), and matrix barcode symbol (Dot-code) have high unit price and are not suitable for the field of general food or cosmetics, so a new technology needs to be developed to solve the problems of technical difficulty and unit price.
Compared with the novelty of the material, the difference hook of the common technical difficulty and the material is more important than the application range of the applicable material, and the applicability of the hook can become a core element according to the characteristics of a commodity group and whether the hook can be produced in batch. Especially the most important factor for anti-counterfeiting is printability.
Inks that can be simply printed on plain paper or film, such as fluorescent inks (fluorescent inks), phosphorescent inks (phosphorescent inks), thermal inks (thermo inks), photochromic inks (photochromic inks), optically variable inks (optically variable inks), magnetic inks (magnetic inks), liquid crystals (liquid crystals), and the like, are widely used for forgery prevention.
On the other hand, various anti-copy and anti-counterfeit techniques (fluorescent ink, color-changing ink, small characters, etc.) are used for authentication of various important parts of existing office automation equipment and equipment, and anti-counterfeit labels used for security purposes.
According to the prior art of forgery-preventing devices for stickers, labels or printed matter, the forgery-preventing printed matter includes an information transfer layer on the inventive substrate, on which forgery-preventing patterns are printed, and the information transfer layer is composed of optically variable ink (OVP), heat-sensitive ink, UV ink, fluorescent ink, magnetically variable ink (MTX), or the like.
However, although the above mentioned anti-counterfeit altered printed matter has the advantage of difficult counterfeit alteration, it also has the disadvantages of too high cost for making the printed matter and requiring other viewers to verify whether the printed matter is counterfeit or not.
[ summary of the invention ]
[ problem ] to provide a method for producing a semiconductor device
The invention aims to provide a viewer integrated anti-counterfeiting transformation device.
More specifically, the present invention is directed to a dedicated viewer formed by extending a forgery prevention device including a cholesteric liquid crystal display layer, which can distinguish forgery without providing a forgery confirmation device.
[ technical solution ] A
According to an embodiment of the present invention, the present invention provides a viewer-integrated anti-counterfeit device, including: a substrate layer; a design printing layer which is positioned on the upper side of the base material layer and is printed with a specific pattern; and the label is positioned on the upper part of the design printing layer and comprises a cholesteric liquid crystal display layer printed with a hidden mark. And comprises: a viewer extending on one side of said substrate layer for viewing said hidden indicia printed on said cholesteric liquid crystal display layer.
The term "pseudo alteration" as used herein refers to any action of newly manufacturing an existing article for the purpose of use by an unauthorized person or of altering an existing article without authorization.
The term "viewer" used in the present specification means any means by which the naked eye can confirm whether or not a false alteration is made.
As used herein, "ferromagnetic body" refers to a relative concept, and means a magnetic body having a relatively strong magnetic force, out of two magnetic bodies, and "weak magnetic body" refers to a relative concept, and means a magnetic body having a relatively weak magnetic force, out of two magnetic bodies.
The term "polarizing substance" used in the present specification means any substance that can detect a specific color, pattern, or change in color and pattern by irradiating polarized light to the substance and comparing the state with the state without irradiating polarized light.
The term "cholesteric liquid crystal" used in the present specification refers to a liquid crystal in which each layer of molecules arranged in a flat shape is spirally rotated.
According to a preferred embodiment of the present invention, the viewer of the present invention is preferably a polarized viewer which can confirm the hidden mark printed on the cholesteric liquid crystal display layer.
According to a preferred embodiment of the present invention, the boundary between the substrate layer and the viewer is preferably provided with a cut-out means for separating the viewer from the substrate layer.
According to a preferred embodiment of the present invention, the substrate layer and the bottom surface of the viewer preferably further include an adhesive layer for adhering the substrate layer and the viewer to an object.
According to a preferred embodiment of the present invention, the substrate layer bottom surface adhesive layer is preferably stronger in adhesion force than the viewer bottom surface adhesive layer.
In the present invention, it is important that the adhesive layer formed on the bottom surface of the label has a stronger adhesion force than the adhesive layer formed on the bottom surface of the viewer. The reason is that, if the sticking force of the adhesive layer formed on the bottom surface of the label is stronger than the sticking force of the adhesive layer formed on the bottom surface of the viewer, the viewer can be easily separated from the sticking surface and then folded in the label direction, so that whether the hidden mark pattern is altered or not can be easily confirmed.
According to a preferred embodiment of the present invention, the viewer is preferably attached to the upper portion of the display layer after being separated from the substrate, so as to confirm whether the display layer is altered or not.
According to a preferred embodiment of the present invention, one side of the viewer of the present invention is preferably formed with an extension of a grip portion, and the bottom surface of the grip portion may not be provided with an adhesive layer.
According to a preferred embodiment of the present invention, the bottom surface of the adhesive layer of the present invention preferably further comprises a release paper layer.
According to a preferred embodiment of the present invention, the viewer of the present invention is preferably folded toward the display layer to confirm whether the display layer is altered or not.
The structure of the invention is very important when the viewer is formed by extending the viewer at one side of the anti-counterfeiting alteration device. The reason is that the viewer is formed to extend to one side of the anti-counterfeit device, and whether the anti-counterfeit device is counterfeit or not can be easily confirmed by folding the viewer in the direction of the label to confirm the hidden mark.
According to a preferred embodiment of the present invention, the cholesteric liquid crystal display layer of the present invention preferably comprises a first display layer and a second display layer, and one or more of the first display layer and the second display layer may be printed with an ink containing cholesteric liquid crystal.
According to a preferred embodiment of the invention, the first display layer and the second display layer of the invention are preferably printed in the same color.
According to a preferred embodiment of the present invention, the first display layer and the second display layer are printed with inks containing cholesteric liquid crystals, respectively, each having a different orientation from each other.
According to a preferred embodiment of the present invention, the ink containing the cholesteric liquid crystal of the present invention preferably contains cholesteric liquid crystal in an amount of 5 to 50% by weight based on the total weight of the ink.
According to a preferred embodiment of the present invention, the ink containing cholesteric liquid crystal of the present invention may preferably include an oily solvent and an organic polymer.
According to a preferred embodiment of the present invention, the oily solvent of the present invention is preferably an oily solvent selected from the group consisting of N-methylpyrrolidone (N-methylpyrrolidone), methyl ethyl ketone (methylethylketone), toluene (tolumene), cyclohexanone (cyclohexoxanone), and a group comprising these mixtures.
According to a preferred embodiment of the present invention, said organic polymer of the present invention is preferably selected from the group consisting of polyurethane (polyurethane) based polymers, polyvinyl alcohol (polyvinyl alcohol) based polymers, polyacrylic acid (polyacrylic) based polymers and mixtures comprising these.
According to a preferred embodiment of the present invention, the thickness of the cholesteric liquid crystal display layer of the present invention is preferably 1 to 15 μm.
According to a preferred embodiment of the present invention, the cholesteric liquid crystal of the present invention may preferably be mixed with a complementary fluorescent dye or a nematic liquid crystal.
In the present invention, it is very important that a cholesteric liquid crystal is mixed with a complementary color fluorescent dye and a nematic liquid crystal. This is because the color visible to the naked eye can be made different from the color after the verification by adding the complementary fluorescent dye to the cholesteric liquid crystal, and the color after the verification can be made different by mixing the cholesteric liquid crystal with the nematic liquid crystal and adjusting the polarization orientation angle.
According to a preferred embodiment of the present invention, the upper portion of the display layer of the present invention may further include an adhesive layer and an extension film layer.
According to a preferred embodiment of the present invention, the hidden mark is confirmed by folding the viewer in a plane opposite to the cholesteric liquid crystal display layer.
According to a preferred embodiment of the invention, said viewer is a magnetic viewer which can confirm said hidden mark printed on said cholesteric liquid crystal display layer.
[ PROBLEMS ] the present invention
The invention has the beneficial effect that the integrated anti-counterfeiting and changing device of the viewer can be provided.
More specifically, the invention has the advantages that the anti-counterfeiting modification device containing cholesteric liquid crystal can be extended to form special check, other pseudo modification confirmation devices are not needed, and whether the pseudo modification is performed or not can be distinguished.
[ description of the drawings ]
FIG. 1 is a front and cross-sectional view showing the integrated viewer anti-counterfeiting alteration device of the present invention;
FIG. 2 is a cross-sectional view showing a label included in the viewer-integrated anti-counterfeiting alteration device of the present invention;
fig. 3 is a view showing a state in which after the viewer is cut out, the cut-out viewer is pasted to the upper part of the label to identify the hidden mark (viewer cut-out type);
FIG. 4 is a front and cross-sectional view showing the integrated viewer-integrated anti-counterfeiting alteration device (viewer folder) of the present invention;
FIG. 5 is a diagram showing a state in which the hidden mark is recognized by the folded viewer after the viewer is folded in the label direction;
fig. 6 is a view illustrating a state observed with a polarizing film (polarized viewer) after aligning a viewer-integrated forgery prevention device including a first display layer containing cholesteric liquid crystal (left side) to which no complementary fluorescent dye is added and a viewer-integrated forgery prevention device including a first display layer containing cholesteric liquid crystal (right side) to which a complementary fluorescent dye is added;
fig. 7 is a view illustrating a state of being observed with a polarizing film (polarized viewer) after aligning a viewer-integrated tamper-resistant device not including an extension film layer and a viewer-integrated tamper-resistant device including an extension film layer.
[ notation ] to show
10: a label; 11: a substrate layer;
12: printing layer; 13: a display layer;
20: hiding the mark; 40: a viewer;
50: a connecting portion; 60: an adhesive layer;
70: a release paper layer; 80: a handle portion;
100: anti-counterfeiting transformation device.
[ detailed description ] embodiments
Specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings in which embodiments of the invention are shown, but the described embodiments are only a part and not all of the embodiments of the invention. Based on the embodiments of the present invention, those skilled in the art may still modify the technical solutions described in the foregoing embodiments, or may equivalently replace some of the technical features in the foregoing embodiments; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention. In describing the present invention, a detailed description of known techniques will be omitted if it makes the gist of the present invention obscure.
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
Fig. 1 and 2 show a front view and a sectional view of a viewer-integrated tamper-proof device (100) according to an embodiment of the present invention, and a sectional view of a label (10) included in the viewer-integrated tamper-proof device (100), fig. 3 shows a state in which a cut viewer (40) is cut in the viewer-integrated tamper-proof device (100) according to an embodiment of the present invention, and the cut viewer (40) is attached to the label (10) to identify a hidden mark (20), and fig. 4 and 5 show a state in which a viewer (40) of a folder viewer (40) is folded in the viewer-integrated tamper-proof device (100) according to an embodiment of the present invention, and the folded viewer (40) is attached to the label (10) to identify the hidden mark (20).
According to fig. 1 to 3, a viewer integrated anti-counterfeiting modification device (100) according to an embodiment of the present invention includes a label (10) including a substrate layer (11), a printing layer (12), and a display layer (13), a hidden mark (20) printed on the display layer (13) of the label (10), a viewer (40), an intercepting device (50), an adhesive layer (60), a release paper layer (70), and a handle portion (80).
The label (10) may include a substrate layer (11), a print layer, and a display layer (13).
The base material layer (11) can be positioned at the lowest layer of the viewer integrated anti-counterfeiting changing device (100), and various films used for manufacturing labels and the like in the fields of synthetic resin, paper, metal and the like can be used, but the viewer (40) of the viewer integrated anti-counterfeiting changing device (100) is positioned at one side of the base material layer (10), so that the most preferable material used for the viewer (40) is also used for the base material layer (11).
The design printing layer (12) is positioned on the substrate layer (11) and can be printed with a pattern different from a display layer (13) to be described later.
The display layer (13) has a thickness of 15 μm or less, is located on the design printing layer (12), and may include a first display layer and a second display layer.
The key factor of whether the display layer (13) can be printed on the design printing layer (12) is the thickness of the printing layer, and if the thickness of the printing layer is thick, the problem that the available printing substrate is limited or printing cannot be performed is caused.
The lower limit of the average size of the ink particles that can be used for actual printing is 15 μm (for example, screen printing method), and the average ink particle size of the more optimized printing method (for example, gravure printing method, offset printing method) is 5 μm or less.
Therefore, the thickness of the display layer (13) according to an embodiment of the present invention may be 15 μm or less, and when used for a packaging material or the like, the thickness of the printing layer is required to be thinner, and therefore, it is more preferably 5 μm or less.
The display layer (13) may contain cholesteric liquid crystal, and the hidden mark (20) provided on the display layer (13) is recognizable by a polarized viewer (40).
The type of the hidden mark (20) which contains cholesteric liquid crystal and is identified by a polarization viewer (40) includes an embodiment in which only one of the first display layer and the second display layer is printed with ink containing cholesteric liquid crystal, and the remaining display layers are printed with normal ink and an embodiment in which all of the first display layer and the second display layer are printed with ink containing cholesteric liquid crystal.
In this embodiment, in which the first display layer and the second display layer are printed using ink containing cholesteric liquid crystal, the latent mark can be recognized only when the cholesteric liquid crystal orientation used for each display layer is different, and whether or not the pseudo-alteration is caused can be confirmed.
The cholesteric liquid crystal powder can be cholesteric liquid crystal microcapsules, and the diameter of the cholesteric liquid crystal microcapsules is about 10 mu m on average and can be printed.
The ink used for printing the display layer may be an ink having the same color or an ink having the same color at a glance, both of which may be used for an ink containing cholesteric liquid crystal and an ink not containing cholesteric liquid crystal.
The upper part of the display layer (13) can be selectively laminated with an extension film layer, and an adhesive layer can be arranged between the extension film layer and the display layer.
And an extension film layer is arranged on the upper part of the display layer (13), so that light refracted by the cholesteric liquid crystal ink is further refracted to increase the identification force of the hidden mark.
The viewer (40) may be provided by a polarized viewer (40) for confirming the hidden mark (20) printed using cholesteric liquid crystal in the display layer (13) or a magnetic viewer (40) for confirming the hidden mark (20) printed using a ferromagnetic printing device.
When the viewer (40) is configured by a polarized viewer (40) such as a polarizing film, light irradiated from the outside can pass through the polarized viewer (40), and a hidden mark (20) formed by cholesteric liquid crystal can be identified.
At least a part of the hidden marks printed on the cholesteric liquid crystal display layer may be constituted by magnetic ink, and in this case, the viewer (40) may be provided by a magnetic viewer (40) for confirming the hidden marks printed on the cholesteric liquid crystal display layer by magnetism.
The substrate layer (11) and the viewer (40) are preferably formed integrally from the same material.
Since the connecting portion (50) is provided at the boundary portion between the viewer (40) and the base material layer (11), as described later, the hidden mark (20) can be recognized by cutting or folding the viewer (40) in the direction of the label (10).
The connecting portion (50) may be provided at a boundary portion of the label (10) and the viewer (40), and the connecting portion (50) is formed by pressing the boundary portion of the label (10) and the viewer (40) using a die forming a knife line.
The cut-out portion is formed by providing a knife line deeply in the boundary portion, and the viewer (50) can be easily separated from the label (10) by being pulled with a certain amount of force or more.
The knife line is formed shallow at the boundary portion of the connecting portion (50), and cannot be used as a cut-out portion, but can be used as a bending portion for bending the viewer (40) toward the label (10).
The adhesive layer (60) is disposed on the bottom surface of the label (10) and the bottom surface of the viewer (40) for adhering the bottom surface of the label (10) and the bottom surface of the viewer (40) to an object.
The adhesive layer (60) provided on the bottom surface of the label (10) has a stronger adhesion force than the adhesive layer (60) provided on the bottom surface of the viewer (40).
If the adhesive layer (60) provided on the bottom surface of the label (10) has a stronger adhesion force than the adhesive layer (60) provided on the bottom surface of the viewer (40), the viewer (40) can be detached from the adhered object easily, and then the viewer (40) can be removed or the viewer (40) can be folded toward the label (10) to confirm whether the label is altered.
The release paper layer (70) can be made of paper, synthetic resin, metal sheet or composite material, and is combined with the lower part of the adhesive layer (60) to prevent the lower surface of the adhesive layer (60) from being polluted by foreign matters and reduce the adhesion force.
The handle portion (80) is located on a side of the viewer (40) to separate the viewer (40) from the label (10) or to serve as a handle during bending of the viewer (40) toward the label (40).
The adhesive layer (60) and the release paper layer (70) may not be provided on the bottom surface of the grip portion (80) so that the user can easily grip the grip portion.
According to fig. 3, the viewer (40) in the viewer-integrated counterfeit alteration preventing device (100) is of an intercepting type in which the hidden mark (20) is recognized by adhering the intercepted viewer (40) to the upper portion of the label (10) after intercepting the viewer (40).
According to fig. 4 and 5, the bending type of the viewer (40) in the viewer-integrated anti-counterfeiting modification device (100) is that after the viewer (40) is bent, the hidden mark (20) can be identified by tightly attaching the folded viewer (40) to the upper part of the label (10).
In addition, complementary fluorescent dye can be added into the cholesteric liquid crystal of the ink containing the cholesteric liquid crystal, and the color of the added complementary fluorescent dye and the dye contained in the design printing layer (12) can form a complementary color contrast relation.
The design printing layer (12) may further contain a pigment which has a complementary color contrast relationship with the complementary fluorescent dye contained in the cholesteric liquid crystal.
The complementary color contrast relationship is a combination of colors that are generally located on opposite sides of each other in a hue ring, and when vermillion and green, yellow and blue, and the like are viewed side by side, the colors appear more intense and vivid due to their mutual influence.
Fig. 6 is an experimental list of verification with a polarizing film (polarization viewer) after aligning the forgery prevention modification apparatus including the first display layer (131) including the cholesteric liquid crystal (left side) to which the complementary color fluorescent dye is not added and the forgery prevention modification apparatus including the first display layer (131) including the cholesteric liquid crystal (right side) to which the complementary color fluorescent dye is added.
Here, the first display layer is in a trapezoidal pattern cross shape, and it can be seen that the right side containing the complementary color fluorescent dye exhibits higher chromaticity than the left side.
The right-side anti-counterfeiting modification device for the comparative experiment comprises: a substrate layer comprising synthetic PP paper; a design print layer comprising a binder having a green pigment content of up to 15%; a first display layer formed by mixing and printing 10% of cholesteric liquid crystal microcapsules with the liquid crystal content of 7%, 89% of acrylate adhesives and 1% of cinnabar fluorescent dye; and the second display layer is formed by mixing and printing 10% of cholesteric liquid crystal microcapsules with the liquid crystal content of 7% and 90% of acrylate adhesive.
As shown in the experimental example, when a vermilion-yellow complementary fluorescent dye having a complementary color contrast relationship with green is added to cholesteric liquid crystal, the visibility can be improved.
The above-mentioned vermillion fluorescent dye is a general fluorescent dye which is generally developed in a long wavelength UV356mn, and the display layer is an example of screen printing with 150 mesh screen printing in a screen printing manner of 5 to 15 μm.
As described above, the upper portion of the display layer (13) may be selectively laminated with an extension film layer, and an adhesive layer may be provided between the extension film layer and the display layer (13) to bond the extension film layer and the display layer.
The extended film layer is positioned on the upper part of the display layer (13), and the light refracted by the cholesteric liquid crystal ink is further refracted to increase the identification power of the identification pattern (hidden mark).
The stretched film is preferably formed of a Bi-Axially oriented polypropylene film (Bi-Axially oriented PP film) having improved optical characteristics and improved transparency.
Fig. 7 shows an experimental example of verification using a polarizing film (polarized viewer) after arranging the forgery prevention alteration device not including the extension film layer and the forgery prevention alteration device including the extension film layer.
Here, the display layer (13) is formed in a circular pattern, and the forgery prevention alteration device including the extended film layer on the right side is observed to be more glittering and have higher chromaticity than the left side.
Further, as shown in the present experimental example, the results of comparison using the extended film layer which can reflect the polarization of the mobile phone show the effect of improving the visibility of the displayed color with more glittering.
The right-side anti-counterfeiting modification device for the comparative experiment comprises: a base material layer containing PP synthetic paper; a design print layer comprising a binder with a silver powder pigment content of up to 15%; a first display layer formed by mixing and printing 10% of cholesteric liquid crystal microcapsules with the liquid crystal content of 7% and acrylate adhesive; a second display layer formed by mixing and printing 10% of cholesteric liquid crystal microcapsules with the liquid crystal content of 7% and 90% of acrylate adhesive; a 30 μm layer of extended Film (OPP Film, Bi-Axially oriented PP Film).
Claims (10)
1. A viewer integrated anti-counterfeiting and anti-counterfeiting device is characterized by comprising:
a substrate layer;
a design printing layer which is positioned on the upper side of the base material layer and is printed with a specific pattern;
the label is positioned on the upper part of the design printing layer and comprises a cholesteric liquid crystal display layer printed with a hidden mark;
and comprises: a viewer extending on one side of said substrate layer for viewing said hidden indicia printed on said cholesteric liquid crystal display layer.
2. A viewer-integrated anti-counterfeiting modification device according to claim 1,
the viewer is a polarized viewer that can confirm the hidden mark printed on the cholesteric liquid crystal display layer.
3. A viewer-integrated anti-counterfeiting modification device according to claim 2,
the boundary of the base material layer and the viewer is provided with a connecting part used for separating the viewer from the base material layer.
4. A viewer-integrated anti-counterfeiting modification device according to claim 3,
the substrate layer and the bottom surface of the viewer further include an adhesive layer for adhering the substrate layer and the viewer to an object.
5. A viewer-integrated anti-counterfeiting modification device according to claim 4,
the adhesive layer on the bottom surface of the base material layer has a stronger adhesive force than the adhesive layer on the bottom surface of the viewer.
6. A viewer-integrated anti-counterfeiting modification device according to claim 5,
after the viewer is separated from the substrate, the viewer is placed on the display layer to confirm whether the viewer is altered.
7. A viewer-integrated anti-counterfeiting modification device according to claim 6,
one side of the viewer is formed by extending a handle part, and the bottom surface of the handle part is not provided with an adhesive layer.
8. A viewer-integrated anti-counterfeiting modification device according to claim 7,
the bottom surface of the adhesive layer also comprises a release paper layer.
9. A viewer-integrated anti-counterfeiting modification device according to claim 8,
the viewer can confirm the hidden mark by folding the cholesteric liquid crystal display layer in the opposite surface.
10. A viewer-integrated anti-counterfeiting modification device according to claim 1,
at least a part of the hidden mark printed on the cholesteric liquid crystal display layer is made of magnetic ink;
the viewer is a magnetic viewer that can confirm the hidden mark printed on the cholesteric liquid crystal display layer.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR20-2020-0002121 | 2020-06-18 | ||
| KR2020200002121U KR200495231Y1 (en) | 2020-06-18 | 2020-06-18 | Viewer Integrated Means Preventing Forgery and Falsification Using Demagnetizer |
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| CN113359334A true CN113359334A (en) | 2021-09-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110673231.9A Pending CN113359334A (en) | 2020-06-18 | 2021-06-17 | Integrated anti-counterfeiting changing device of viewer |
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| KR (2) | KR200495231Y1 (en) |
| CN (1) | CN113359334A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115848005A (en) * | 2021-09-23 | 2023-03-28 | 新伟智方有限公司 | Method for manufacturing anti-counterfeiting changing device by demagnetization and anti-counterfeiting changing device manufactured by same |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR102632900B1 (en) * | 2022-07-01 | 2024-02-05 | 엔비에스티(주) | Forgery prevention means applied with three-step authentication method and forgery authentication method using the same |
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Also Published As
| Publication number | Publication date |
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| KR20210002908U (en) | 2021-12-27 |
| KR200495231Y1 (en) | 2022-04-08 |
| KR20220000803U (en) | 2022-04-08 |
| KR200495301Y1 (en) | 2022-04-21 |
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