WO2022114295A1 - Method for manufacturing apparatus for preventing forging and falsification - Google Patents

Method for manufacturing apparatus for preventing forging and falsification Download PDF

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Publication number
WO2022114295A1
WO2022114295A1 PCT/KR2020/017121 KR2020017121W WO2022114295A1 WO 2022114295 A1 WO2022114295 A1 WO 2022114295A1 KR 2020017121 W KR2020017121 W KR 2020017121W WO 2022114295 A1 WO2022114295 A1 WO 2022114295A1
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WO
WIPO (PCT)
Prior art keywords
particle
particles
manufacturing
counterfeiting
magnetic field
Prior art date
Application number
PCT/KR2020/017121
Other languages
French (fr)
Korean (ko)
Inventor
주재현
장보승
한승훈
박윤정
Original Assignee
주식회사 나노브릭
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Application filed by 주식회사 나노브릭 filed Critical 주식회사 나노브릭
Priority to PCT/KR2020/017121 priority Critical patent/WO2022114295A1/en
Publication of WO2022114295A1 publication Critical patent/WO2022114295A1/en

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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
    • B42D25/369—Magnetised or magnetisable materials
    • 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
    • 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
    • B42D25/40—Manufacture
    • 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
    • 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 
    • G02F1/09—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 magneto-optical elements, e.g. exhibiting Faraday effect
    • 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 
    • G02F1/165—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 translational movement of particles in a fluid under the influence of an applied field
    • G02F1/166—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 translational movement of particles in a fluid under the influence of an applied field characterised by the electro-optical or magneto-optical effect
    • G02F1/1673—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 translational movement of particles in a fluid under the influence of an applied field characterised by the electro-optical or magneto-optical effect by magnetophoresis
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
    • H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
    • H01F1/032—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials
    • H01F1/04—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials metals or alloys
    • H01F1/047—Alloys characterised by their composition
    • H01F1/053—Alloys characterised by their composition containing rare earth metals
    • H01F1/055—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/44—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of magnetic liquids, e.g. ferrofluids

Definitions

  • the present invention relates to a method for manufacturing an anti-counterfeiting and tampering prevention device, and more particularly, to a viewing angle or a light source using particles that are moved or rearranged by application of a magnetic field and particles whose optical properties change depending on the viewing angle. It relates to a method of manufacturing a device for preventing counterfeiting and tampering, including a security printing layer that implements a color change or three-dimensional effect according to a location.
  • a security medium using a magnetic color variable pigment is manufactured and utilized as a product having a structure suitable for each purpose such as security and genuine authentication by various security recognition means and combinations thereof.
  • these security media counterfeiting and tampering devices that can identify authenticity with the naked eye have excellent ease of use and are being used in various fields including security printing.
  • Such visual identification uses an overt function, and for this, a technique for generating a variable effect sufficient to visually recognize the variable effect is required.
  • the magnetic material and general pigment included in the color variable layer inserted between the substrates are configured to be localized in one direction by the specific gravity of the solvent and external force, so that external magnetic field, gravity, etc.
  • the color change effect is caused by factors.
  • various types of security information can be displayed, but it requires the application of an external magnetic field or the user must be aware of the prior information about the color change effect, and it is difficult to recognize because the color change is not clear. There is a problem that occurs when experiencing
  • the information transfer layer constituting the forgery prevention printout is any one or these of optically variable pigment (OVP), thermal ink, UV ink, fluorescent ink, or hologram. It is composed of a first variable layer formed by the combination of a magnetically color turnable photonic crystal ink (MTX) and a second variable layer formed of a magnetically color turnable photonic crystal ink (MTX), and in addition to the color change effect on the magnetic field by the magnetic color changeable material, various inks It is possible to realize the color variable effect by the combination of
  • OVP optically variable pigment
  • MTX magnetically color turnable photonic crystal ink
  • MTX magnetically color turnable photonic crystal ink
  • MTX magnetically color turnable photonic crystal ink
  • the present invention has been devised in view of the prior art as described above, and particles whose optical properties (color, spectrum of reflected light, reflectivity, transmittance, etc.) change depending on the viewing angle and particles that are moved or rearranged by the application of a magnetic field.
  • An object of the present invention is to provide a method of manufacturing an anti-counterfeiting and tampering device including a security printing layer that changes color or a specific pattern or implements a three-dimensional effect depending on the viewing angle or the position of the light source.
  • the manufacturing method of the anti-counterfeiting and tampering device of the present invention for solving the above problems is any one of the color of the reflected light, the spectrum of the reflected light, the intensity or the transmittance of the reflected light according to the viewing angle or the position of the light source or a dispersion step of preparing a dispersion by dispersing the first particles whose optical properties are changed and the second particles that are moved and reconfigured by the application of a magnetic field in a liquid medium to be photocured or thermally cured; a printing step of printing the dispersion on the surface of the substrate to form a security printing layer; Forming security information consisting of a specific color, pattern, reflected light spectrum or image by inducing movement or rotation of the first particle by moving or rotating the second particle by applying a magnetic field from the outside; By applying light or heat from the outside, the first particles and the second particles are reconfigured from an initial configuration to another arrangement, but the rearrangement is irreversible. and curing the array to form the security element layer.
  • the method of manufacturing an anti-counterfeiting and tampering device includes any one of a color of reflected light, a spectrum of reflected light, intensity of reflected light, or transmittance according to a viewing angle or location of a light source.
  • Dispersing step of preparing a dispersion by dispersing the first particles having the above optical properties and second particles that are reconfigured by moving by application of a magnetic field in a liquid medium includes, wherein the second particles are moved by the application of an external magnetic field, and the first particles are moved by the movement of the second particles, so that the first It is characterized in that the color, pattern or steric effect by the particles is reversibly changed and rearranged from the initial configuration of the first particle and the second particle to another arrangement.
  • the security element layer may be formed as a security element layer including a capsule by additionally including an encapsulation step of encapsulating the dispersion prepared through the dispersion step using a light-transmitting medium.
  • the first particle may be composed of a ferromagnetic material including at least one of Fe, Ni, and Co, and the ferromagnetic material may be magnetized through magnetization.
  • the second particles may be regularly arranged to express a photonic crystal phenomenon by application of an external magnetic field, so that the security element layer implements a photonic crystal optical effect.
  • the first particle is a flake-shaped particle, a particle whose color or reflected light changes depending on an angle on at least one side, a particle whose at least one side exhibits a mirror property, a particle whose at least one side exhibits a metallic luster property, Any one or more particles of particles having different colors on both sides may have a diameter of 1 to 50 ⁇ m.
  • the second particle and the first particle move complexly by the application of an external magnetic field, thereby increasing the optical properties and the second particle by the first particle. optical properties can be expressed together.
  • the second particle is a magnetic material
  • the second particle is a ferromagnetic particle, a superparamagnetic particle, a sphere-shaped particle, a flake-shaped particle, a particle that drives magnetophoretic by an external magnetic field, Any one or more of particles that are driven magnetically by an external magnetic field, and the diameter of the particles may be 10 nm to 10 ⁇ m.
  • the second particle may include at least one element of Fe, Ni, and Co.
  • the density of the second particles may be equal to or greater than the density of the first particles, and a density ratio of the first particles to the second particles may be 1.1 or more.
  • a light absorption layer may be additionally formed between the substrate and the security printing layer.
  • the second particles may be localized downward when a magnetic field is applied to form a light absorption layer.
  • the security information formed on the security element layer is a pattern or an image
  • the pattern or image may be any one or more of a one-dimensional or two-dimensional barcode, QR code, number, and character.
  • the security element layer may include any one or more of an optically variable pigment (OVP), a pearl, a light emitting pigment, a phosphorescent pigment, a cholesteric liquid crystal pigment, an ultraviolet reactive material, and an infrared reactive material.
  • OVP optically variable pigment
  • the forming of the security information may include arranging the first particles and the second particles in a specific direction.
  • the liquid medium may be a photocurable material, and the light irradiated from the outside may be light in the ultraviolet region.
  • the security information may be changed due to structural change in which the irreversibly hardened security element layer bends, contracts, or expands due to external pressure or bending or stretching.
  • the forming of the security element layer may include: a first step of fixing a position by applying light or heat in a state in which a magnetic field is applied from the outside; It may include a second step of additionally fixing the positions of the first particles and the second particles by applying light of a stronger intensity or heat of a higher temperature than the light or heat of the first step.
  • variable layer in which at least one of a color, a spectrum, and an intensity of reflected light is changed according to a viewing angle or a position of a light source may be additionally formed above or below the security element layer.
  • the forming of the security element layer may include curing a specific portion by applying a primary magnetic field; Applying a secondary magnetic field may include curing a portion other than the specific portion.
  • the anti-counterfeiting and tampering device may include a time-varying optical effect in which optical properties change depending on a viewing angle or the position of a light source irradiated from the outside, and a photonic crystal optical effect in which optical properties change according to an externally applied magnetic field.
  • the anti-counterfeiting and tampering device may be manufactured according to the manufacturing method of the anti-counterfeiting and tampering device.
  • the method for manufacturing an anti-counterfeiting and tampering device uses particles that are moved or rearranged by the application of a magnetic field and particles whose optical properties change depending on the viewing angle, so that a color variable or three-dimensional effect is realized. It can provide anti-counterfeiting and tampering protection.
  • FIG. 1 is a cross-sectional view showing the structure of an anti-counterfeiting and tampering prevention device according to the present invention.
  • FIG. 2 is a conceptual diagram schematically illustrating a method for manufacturing a counterfeit and tamper-proof device for irreversibly curing first and second particles by applying light or heat from the outside according to the present invention.
  • FIG. 3 is a conceptual diagram illustrating a process in which an optical characteristic of a first particle and a photonic crystal characteristic of a second particle are simultaneously expressed in the device for preventing forgery and tampering manufactured by the manufacturing method of FIG. 2 .
  • FIG. 4 is a photographic image of the anti-counterfeiting and tampering device manufactured by the manufacturing method of FIG. 2 , and is an image showing optical characteristics (a) without a light absorbing layer and optical characteristics (b) with black applied as a light absorbing layer to be.
  • FIG. 5 is an image showing a state in which optical characteristics of a first particle, which is a non-magnetic particle, appear due to movement of a photonic crystal particle, which is a second particle, according to the present invention.
  • FIG. 6 is a scanning electron microscopy (SEM) image of the printed cross-section of FIG. 5 , and is an image showing a state in which the first particles are inductively aligned.
  • SEM scanning electron microscopy
  • FIG. 7 is a schematic diagram showing an arrangement for applying a magnetic field according to the present invention.
  • Fig. 8 is an image of an anti-counterfeiting and tamper-evident device obtained using magnetic orientation according to Fig. 7(b).
  • FIG. 9 is a cross-sectional view illustrating a structure of an apparatus for preventing forgery and tampering according to another embodiment of the present invention.
  • FIG. 10 is an optical microscope image of the microcapsule manufactured through the manufacturing method of FIG. 9 .
  • 11 is a self-orientation image of a film on which microcapsules containing magnetisable variable flakes are printed.
  • the method for manufacturing an anti-counterfeiting and tampering device of the present invention is a first particle and magnetic field in which any one or more optical properties of the color of the reflected light, the spectrum of the reflected light, the intensity or transmittance of the reflected light are changed according to the viewing angle or the position of the light source.
  • the anti-counterfeiting and tampering prevention device manufactured by this manufacturing method has a structure as shown in FIG. 1 .
  • the first particles and the second particles are arranged in the security element layer to form an irregular or regular arrangement as in FIG.
  • a specific pattern or image may be formed to constitute security information.
  • This security information is intended to visually identify whether forgery or falsification by observing or observing the security element layer, and may be any one or more of a one-dimensional or two-dimensional barcode, QR code, number, or character, It can include all visually identifiable security information such as a specific company's logo, trademark, mark, and icon.
  • the first particles and the second particles regularly or irregularly arranged in the security element layer each have their own optical properties (color, reflectivity, reflection spectrum, etc.), which are patterns or images printed with ink on the substrate. will play the same role as
  • the first particle is a particle having a flake shape, at least one side of which changes color or reflected light depending on an angle, at least one side of a particle exhibiting a mirror property, and at least one side has a metallic luster property Any one or more of the particles shown and the particles having different colors on both sides may be applied, but it is preferable to use particles having a diameter of 1 ⁇ m to 50 ⁇ m in consideration of the realization of a visual effect.
  • the first particle implements an optical effect, and the shape of the particle is diversified to facilitate visual recognition through a color change or a three-dimensional effect.
  • a non-magnetic material is used as the first particle, only the second particle selectively reacts to an external magnetic field, thereby indirectly inducing the movement of the first particle to understand the movement of the second particle to realize a color-changing effect. or it may cause a change in security information depending on the viewing angle or the position of the light source.
  • a magnetic material or a magnetic material and a nonmagnetic material are laminated coated or a mixed material is used as the first particle, the first particle and the second particle are simultaneously reacted to the external magnetic field according to the external magnetic field.
  • the optical effect caused by particles may be complexly implemented, or the change of security information may be compounded depending on the viewing angle or the position of the light source.
  • an optical effect may be realized with only the first particle according to an external magnetic field, or security information according to the viewing angle or the position of the light source may cause changes in
  • the second particle is a magnetic material, and is a ferromagnetic particle, a superparamagnetic particle, a particle having a spherical shape, a particle having a plate shape, a particle having a magnetophoretic drive by an external magnetic field, and an external magnetic field.
  • Any one or more particles among the particles that are driven by magnetorheological by means of a magnetorheological method may be used, and those having a diameter of 10 nm to 10 ⁇ m may be used in consideration of the realization of the visual effect and the formation of photonic crystals.
  • Magnetic materials such as ferromagnetic particles, superparamagnetic particles, magnetophoretic particles, and magnetic fluid particles used as the second particles have photonic crystal properties according to the applicant's prior art (Registration Patent No. 10-1715058, Patent No. 10-1335719, etc.) Particles that can be displayed can be used, and not only spherical particles but also plate-shaped particles can be applied in consideration of visual effects.
  • the security element layer is an optically variable pigment (OVP), pearl, luminescent pigment, photoluminescent pigment, cholesteric liquid crystal pigment, ultraviolet absorbing or reflective material, infrared absorbing or reflective material, color change or transmittance according to temperature Any one or more of the change materials may be additionally included. Since it is possible to cause an optical effect in the form of a reaction by the wavelength of the incident light or the effect of changing the color of the pigment according to the incident light with the optical effect of the first and second particles through the addition of such an additional component, it is visually counterfeit And it is possible to improve the identification ability to easily check whether or not tampering.
  • OVP optically variable pigment
  • the first particle and the second particle may be dispersed in the security element layer, but separately, the first particle and the second particle may be dispersed and then the dispersion may be encapsulated using a light-transmitting medium.
  • a security element layer in which a capsule including a first particle and a second particle is included, as shown in FIG. 1( b ).
  • This encapsulation technology can be performed by a method known in the patents applied by the applicant (Patent Publication No. 10-2018-0018612, Patent Publication No. 10-2019-0022302, Registration Patent No. 10-1778198, etc.), and 3 ⁇ m or more It can also be used in the form of capsules having a size of 300 ⁇ m. Since the security element layer including the capsule induces a color change by forming an arrangement of the first particles and the second particles in the form of a unit cell, it is possible to implement a visual effect different from that of the security element layer in which the particles are dispersed.
  • the second particle may be positioned at the top of the security printing layer to maximize the optical property effect, and the specific gravity of the first particle to the specific gravity of the second particle
  • the relative value of may be 1.05 or more, preferably 1.05 to 8.0.
  • FIG. 2 schematically shows a method for manufacturing an anti-counterfeiting and tampering prevention device according to the present invention.
  • the first particles and the second particles exist in a regular or irregularly arranged state on the security printed layer printed on the surface of the substrate (initial state), and the first particles and the second particles are
  • the position or arrangement of the second particles reacting to the magnetic field is changed (step 1), and when irradiated with light such as ultraviolet rays in this state, the security printing layer is irreversibly cured, so the particles
  • the array becomes immobilized (step 2). Therefore, in order to perform particle arrangement and immobilization, steps 1 and 2 may be sequentially performed, but may also be performed almost simultaneously, which may vary depending on the type and combination of particles to be applied.
  • the printed security print layer can be formed in a specific pattern or image through this process.
  • the first particle is a non-magnetic material
  • the first particle is determined by movement of the first particle
  • the first particle includes a magnetic material
  • the position of the first particle is determined by the movement of the first particle and the movement of the second particle. Movement is determined by a complex action.
  • These specific patterns or images mainly refer to optical effects that can be obtained according to the rearrangement of particles such as color, three-dimensional effect, and luminous effect. It does not mean that the information itself is changed by the movement of particles.
  • color clarity may be low because optical properties of the first particles are affected by diffuse reflection of the printed substrate.
  • the movement of the second particle may not only serve as a simple information display function, but may also implement a light absorption layer function, thereby improving the optical properties of the first particle.
  • the second particles may have various colors, but most ideally, black particles may be used. When the degree of black increases, the optical properties of the first particles may be improved. In addition, there may be a difference in wavelength and sharpness according to the color of the second particle.
  • thermosetting resin when used together with the ultraviolet curable resin or a thermosetting resin is used alone, irreversible curing may occur even by heat.
  • the security element layer through irreversible curing
  • light of a specific wavelength or heat of a specific temperature is applied, but the position of the particles is fixed by applying light or heat from the outside (first step), and then
  • the curing process may be performed by dividing it into a step (second step) of additionally fixing by applying a higher intensity of light or heat of a higher temperature than in the first step.
  • irreversible hardening may be performed by applying a secondary magnetic field to harden a part other than the specific part.
  • the strength of the magnetic field
  • the wavelength can be changed, and curing can occur sequentially by using a corresponding liquid medium.
  • the particle arrangement in the manufactured security element layer is stably maintained for a long period of time, and the arrangement of the particles due to external energy is changed or deteriorated. It is also possible to configure regions with different particle arrangements so that the photonic crystal effect occurs differently.
  • the security element layer itself by additionally forming a variable layer in which the optical characteristics of at least one of the color of the reflected light, the spectrum of the reflected light, and the intensity of the reflected light are changed according to the viewing angle or the position of the light source on the upper or lower part of the security element layer
  • the optical effect of the variable layer may be added.
  • the anti-counterfeiting and tampering device to which such a variable layer is added can implement another optical effect, so it can be appropriately selected and applied according to the purpose.
  • optical effects such as color change, pattern change, three-dimensional effect, and light emitting effect are changed according to the viewing angle, so the user can change the viewing angle.
  • optical effects such as color change, pattern change, three-dimensional effect, and light emitting effect are changed according to the viewing angle, so the user can change the viewing angle.
  • visual effects such as color change, pattern change, three-dimensional effect, and light emitting effect may be displayed by pressing, stretching, or bending the security element printed on a specific substrate.
  • a plate-shaped particle that can be moved, rotated, or rearranged by application of a magnetic field is employed as the second particle, it is rearranged by the movement of the second particle and then in the security element layer in FIG. 3(a) ) to form an array as in
  • the optical effect as in Fig. 3(a) can be realized. is clearly expressed, so it is possible to recognize whether the printed information has been forged or altered.
  • optical effects such as color change, pattern change, three-dimensional effect, and light emitting effect may be implemented by pressing or bending the security element layer printed on a specific substrate.
  • the second particle and the first particle move, rotate, or By rearranging, it is possible to induce a complex color change, a three-dimensional effect, and a light emitting effect by the first and second particles according to a change in a viewing angle or a position of an external light source.
  • the first particle and the second particle react according to an external magnetic field
  • the first particle and the second particle are configured to exhibit different movement and rearrangement phenomena according to the external magnetic field, or optical properties (color, reflectivity, By contrasting the reflection spectrum, etc.), it is possible to recognize whether it is forged or tampered with by different visual effects by each particle.
  • a clear circular pattern shape is visually displayed depending on the viewing angle, so that counterfeiting or tampering of the product can be confirmed by recognizing the circular pattern. do.
  • the second particle particles constituting the photonic crystal through regular rearrangement according to the prior art may be applied.
  • the security element layer formed through this process is the same as that of FIG. 3(b).
  • a specific photonic crystal pattern is formed according to the application of an external magnetic field as well as a visual effect according to the viewing angle, and depending on the angle of the formed photonic crystal pattern Since the color-changing effect can be expressed at the same time, it is possible to simultaneously implement the optically variable angle optical effect and the photonic crystal optical effect, and it is possible to recognize whether forgery or modulation is caused by different visual effects by each particle.
  • the pattern at a specific viewing angle can be clearly recognized visually and is applied to a certain part of the circular pattern by the application of an external magnetic field. Since the formed photonic crystal pattern is variable, it is possible to recognize whether a product is forged or modulated through the simultaneous realization of the optically variable optical effect and the photonic crystal optical effect.
  • the plate-shaped particle has a color or reflected light that changes depending on the angle
  • at least one side of the particle shows a mirror property
  • at least one side of the particle shows a metallic luster property
  • both sides Particles having different colors can be applied, and as shown in FIG. 6 , by using the plate-shaped particles for the first particle, a color change or a three-dimensional effect can be obtained depending on the viewing angle.
  • the color change according to the viewing angle can be made more distinct by using particles that change the reflected light, mirror properties, or particles with metallic luster properties.
  • both sides of the particle have different colors, it is possible to cause a phenomenon in which the color changes when both sides of the particle are viewed from one side of the particle depending on the viewing angle.
  • the particles whose color or reflected light changes depending on the angle of the at least one surface the particles whose at least one surface exhibits mirror properties, the particles whose at least one surface exhibits metallic luster properties, and the particles whose both sides have different colors
  • spherical particles may be used as different optical properties of one surface and the other surface, it is preferable to use plate-shaped particles for the expression of optical properties.
  • the anti-counterfeiting and tampering prevention device can be manufactured, including the step of forming a security element layer by printing the capsule on a substrate.
  • the second particles move by the application of an external magnetic field, and the second particles move by the movement of the second particles.
  • the first particle moves, the color, pattern, or three-dimensional effect changes, and when the external magnetic field is removed, the first particle and the second particle return to a dispersed state, so the arrangement of the particles is changed from the initial arrangement. change reversibly between
  • the first particles and the second particles can use particles of various shapes, sizes, and specific gravity as described above, and OVP (optically variable pigment), pearl (pearl), luminescent pigment, photoluminescent pigment, cholesteric liquid crystal pigment, It may include any one or more additional components of an ultraviolet light emitting or absorbing material, an infrared light emitting or absorbing material, and the color, spectrum, and intensity of the reflected light, depending on the viewing angle or the position of the light source, on the upper or lower portion of the security element layer. Since the variable layer in which at least one optical characteristic is changed may be additionally formed, another type of optical effect may be realized.
  • the anti-counterfeiting and tampering prevention device in which the position of particles can be changed reversibly, the optical effect can be changed depending on whether an external magnetic field is applied, so that an anti-counterfeiting and tampering device for another purpose can be configured. Therefore, the anti-counterfeiting and tampering device according to the present invention is capable of displaying various security information according to an appropriate combination of the optically variable optical effect and the photonic crystal optical effect. do.
  • the security element layer when it is applied, it can be converted into digital data.
  • Information on variable colors, patterns, and three-dimensional effects is set in advance as a designated code, and information to be inserted is converted into binary code and pixelated information.
  • the data After generating the data, the data is coded through the conversion and output of the electromagnetic field signal according to the binary code, so that the security information of the anti-counterfeiting and tampering device can be checked.
  • a plurality of pixel areas are selected by scanning or photographing security information, the color of the pixel areas is converted into a binary code, and the binary code is identified and the corresponding data is displayed.
  • security information can be identified.
  • the security performance can be strengthened so that the security information can be displayed only at a specific angle during the scanning or photographing. Therefore, the scanning or photographing is performed through a camera, and the process of converting the pixel area into a binary code and displaying data again can be performed by a program or an application. Authenticity can be verified.
  • a coating composition for photocuring including the first particles whose optical properties change depending on the viewing angle or the position of the light source was prepared with the composition shown in Table 1.
  • magnetisable optically variable flakes of purple to dark blue having a magnetic property and having a D90 of about 20 ⁇ m were used.
  • the coating composition for photocuring described in Table 1 was applied to the substrate by silkscreen printing (300 mesh) to form a security printing layer, and the magnetically oriented optically variable flakes were exposed to a magnetic field of a specific pattern to self-orient security information consisting of images. was formed. After the self-oriented security print was completely cured by passing it through a UV curing machine of 330 mW/cm 2 conditions, the optical properties were evaluated. The results are shown in Table 2.
  • a coating composition for photocuring including a first particle whose optical properties are changed according to a viewing angle or a position of a light source and a second particle whose particles are rearranged when an external magnetic field is applied was prepared in the composition shown in Table 3.
  • first particles magnetisable optically variable flakes as in Example 1 were used, and as the second particles, spherical photonic crystal particles reflecting a visible light wavelength (480 to 650 nm) when a magnetic field was applied were used.
  • the coating composition for photocuring shown in Table 3 was applied to the substrate by silkscreen printing (300 mesh) to form a security printing layer, and exposed to a magnetic field of a specific pattern to self-orient the magnetizable optically variable flakes and also the photonic crystal particles Security information was formed by self-alignment. After the self-oriented security print was completely cured by passing it through a UV curing machine of 330 mW/cm 2 conditions, the optical properties were evaluated. The results are shown in Table 4.
  • the security print including the oriented first particles and the second particles was not easy to identify the light and dark, and it was not possible to confirm the three-dimensional effect of moving depending on the viewing angle or the position of the light source.
  • the reflectivity ratio of the bright zone and dark zone of the print was 1.01, showing similar results.
  • the coating composition for photocuring described in Table 5 was applied to the substrate by silkscreen printing (420 mesh), and the composition was completely cured by passing it through a UV curing machine of 330mW/cm2 condition.
  • the photocurable coating composition according to Tables 1 and 3 was applied to the substrate by silkscreen printing (300 mesh) and exposed to a magnetic field of a specific pattern to self-orient the magnetizable optically variable magnetic flakes.
  • the self-aligned coating composition was passed through a UV curing machine of 330 mW/cm 2 conditions to be completely cured, and then the optical properties were evaluated. The results are shown in Table 6.
  • the security print containing magnetizable optically variable flakes according to Table 1 printed and cured on top of the color layer was easier to identify the contrast compared to the result of Example 1, and the three-dimensional effect of moving depending on the viewing angle or the position of the light source was obtained. could check The reflectivity ratio of the bright zone and the dark zone of the printed material also showed an excellent contrast ratio of 4.06.
  • the security print including the first particle and the second particle was easier to identify the contrast compared to the result of Example 2, and it was possible to confirm the three-dimensional effect moving according to the viewing angle or the position of the light source.
  • the reflectivity ratio of the bright zone and the dark zone of the print also showed a contrast ratio of 2.77.
  • the pigment types of the photocurable color ink in Table 5 were changed to change the properties of the light absorption layer.
  • Color inks for photocuring in which black and blue pigments are dispersed, respectively, were applied to the substrate by silkscreen printing (420 mesh), and the composition was completely cured by passing it through a UV curing machine under the condition of 330mW/cm2.
  • the photocurable coating composition according to Table 3 was applied to the substrate by silkscreen printing (300 mesh) and exposed to a magnetic field of a specific pattern to self-align the magnetizable optically variable magnetic flakes.
  • the self-aligned coating composition was passed through a UV curing machine of 330 mW/cm 2 conditions to be completely cured, and then the optical properties were evaluated. The results are shown in Table 4.
  • a coating composition for photocuring including a first particle whose optical properties are changed according to a viewing angle or a position of a light source and a second particle whose particles are rearranged when an external magnetic field is applied was prepared in the composition shown in Table 8.
  • the non-magnetic optically variable flakes used various optically variable flakes having a D90 of about 50 ⁇ m as shown in Table 9 below, and the magnetically tunable photonic crystal material has a spherical shape that reflects visible light wavelengths (480 to 650 nm) when a magnetic field is applied. Photonic crystal particles were used.
  • the coating composition for photocuring according to Table 8 was applied to the substrate by silk screen printing (300 mesh), and the first particles and the second particles were magnetically exposed by exposure to a magnetic field of a specific pattern. oriented The self-aligned coating composition was passed through a UV curing machine of 330 mW/cm 2 conditions to be completely cured, and then the optical properties were evaluated. The results are shown in Table 10.
  • the security print containing the non-magnetizable optically variable flakes according to Table 10 was easy to identify the light and dark, and it was possible to confirm the three-dimensional effect of moving according to the viewing angle or the position of the light source.
  • the reflectivity ratio between the bright and dark zones of the print was about 1.3.
  • the CR ratio was low compared to the security print containing magnetizable optically variable flakes, it was confirmed that the optical properties such as three-dimensional effect were sufficiently disclosed.
  • the sizes of the non-magnetizable optically variable flakes are D90 45 and 150 ⁇ m, but preferably, the use of flakes of 25 ⁇ m or less allows for smooth alignment by the second particles, thereby improving the optical effect. effective for expression. This can also be confirmed from the fact that the variable effect of the pattern according to the angle of the security print is clearly identified as shown in FIGS. 5 and 8 .
  • the angle at which the flakes are arranged may vary depending on the location.
  • An optical effect according to such a viewing angle may be implemented.
  • the arrangement of these flakes may be changed in various forms according to the direction in which the magnetic field is applied at both ends of the printed layer as shown in FIG. 7 .
  • a coating composition for photocuring comprising a first particle whose optical properties are changed according to a viewing angle or a position of a light source and a second particle whose particles are rearranged when an external magnetic field is applied was prepared according to Table 11.
  • Optically variable flakes having a D90 of about 50 ⁇ m were used as the non-magnetizable optically variable flakes, and as the magnetizable nanoparticles, particles having a characteristic of particle arrangement and rotation when a magnetic field was applied were used.
  • the coating composition for photocuring according to Table 11 was applied to the substrate by silkscreen printing (300 mesh), and the magnetizable optically variable magnetic flake was magnetically exposed to a magnetic field of a specific pattern.
  • the self-oriented coating composition was passed through a UV curing machine under the condition of 330 mW/cm 2 and completely cured, and then the optical properties were evaluated. The results are shown in Table 12.
  • the security print including the non-magnetic optical variable flakes was easy to identify the light and dark, and it was possible to confirm the three-dimensional effect of moving depending on the viewing angle or the position of the light source.
  • the reflectivity ratio of the bright zone and the dark zone of the print was about 1.25.
  • Examples 1 to 6 show the results for the optical properties due to the first particle and the complex optical effect due to the arrangement or movement of the second particle when the magnetic field is applied.
  • the orientation of the first particles is induced by the movement, arrangement, and rotation of the second particles, thereby securing optical properties.
  • magnetic photonic crystal particles are used as the second particles, it is confirmed that new optical properties can appear by combining the optical properties of the first particles and the optical properties of the second particles. It was confirmed that it was a coating composition for security printing with high optical properties and improved optical properties.
  • An optically variable ink including first particles whose optical properties change depending on the viewing angle or the position of the light source was prepared with the composition shown in Table 13.
  • ingredient content (wt%) isoparaffin oil 85-95 High Molecular Weight Copolymer for Pigment Dispersion 1-3 First particle (magnetizable optically variable flake) 5-10
  • black to silver magnetisable optically variable flakes having a D90 of about 20 ⁇ m were used as the first particles.
  • magnetizable optically variable microcapsules were prepared through the encapsulation process, and the composition is shown in Table 14.
  • ingredient content gelatin 10-15 arabic gum 10-15 Optically variable ink comprising first particles 70-80
  • a film was manufactured using the capsule prepared with the composition according to Table 14, and its optical properties were evaluated, and the results are shown in Table 15.
  • the film may exhibit a color-changing effect by the applied magnetic field by forming micro-particles.
  • the microcapsules including the magnetisable variable flakes are printed on the film including the microparticles, magnetic orientation occurs by the application of a magnetic field as shown in FIG. 11, thereby realizing an optical effect.
  • An optically variable ink including a first particle whose optical properties are changed according to a viewing angle or a position of a light source and a second particle whose particles are rearranged when an external magnetic field is applied was prepared with the composition shown in Table 16.
  • ingredient content isoparaffin oil 60-80 Sorbitan Trioleate 0.1 ⁇ 1.0 High Molecular Weight Copolymer for Pigment Dispersion 0.5 ⁇ 2.0 First particle (magnetizable optically variable flake) 1 to 10 Second particle (self-color-tunable photonic crystal material) 10-20
  • first particles magnetisable optically variable flakes as in Example 1 were used, and as the second particles, spherical photonic crystal particles reflecting a visible light wavelength (480 to 650 nm) when a magnetic field was applied were used.
  • ingredient content gelatin 10-15 arabic gum 10-15 Optically variable ink comprising first and second particles 70-80
  • a film was prepared using the capsule prepared according to the composition of Table 17, and its optical properties were evaluated. The results are shown in Table 18.
  • An optically variable ink including first particles whose optical properties change according to a viewing angle or a position of a light source and second particles in which particles migrate when an external magnetic field is applied was prepared with the composition shown in Table 19.
  • ingredient Composition (wt%) isoparaffin oil 75-85 High Molecular Weight Copolymer for Pigment Dispersion 1-3 First particle (non-magnetizable optically variable flake) 10-20 Second particle (magnetic particle) 1 to 10
  • optically variable flakes having a D90 of about 40 ⁇ m were used as the non-magnetic optically variable flakes, and magnetic particles having a D90 of about 200 nm were used as the second particles.
  • ingredient content gelatin 10-15 arabic gum 10-15 Optically variable ink comprising first and second particles 70-80

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Abstract

The present invention relates to a method for manufacturing an apparatus for preventing forging and falsification, which comprises: a dispersion step of manufacturing a dispersion liquid by dispersing, in a liquid medium, first particles of which one or more optical characteristics from among the color of reflected light, the spectrum of the reflected light, and the strength or penetration degree of the reflected light are changed in accordance with a viewing angle or the position of a light source, and second particles which are moved or reconfigured by a magnetic field being applied thereto; a capsule manufacturing step of encapsulating the dispersion liquid using a medium that transmits light; and a step of forming a security device layer by printing the capsule on a substrate, wherein the second particles move by means of application of an external magnetic field, and the first particles move by means of the movement of the second particles, such that the color, pattern, or steric effect by the first particles is reversibly changed, and the first particles and the second particles are reconfigured from the initial configuration thereof to another configuration.

Description

위조 및 변조 방지 장치의 제조방법Manufacturing method of anti-counterfeiting and tampering devices
본 발명은 위조 및 변조 방지 장치의 제조방법에 관한 것으로, 더욱 상세하게는, 자기장의 인가에 의해 이동 또는 재배열되는 입자와 보는 각도에 따라 광학적 특성이 변화되는 입자를 이용하여 보는 각도나 광원의 위치에 따라 색가변 또는 입체 효과를 구현하는 보안 인쇄층을 포함하는 위조 및 변조 방지 장치의 제조방법에 관한 것이다.The present invention relates to a method for manufacturing an anti-counterfeiting and tampering prevention device, and more particularly, to a viewing angle or a light source using particles that are moved or rearranged by application of a magnetic field and particles whose optical properties change depending on the viewing angle. It relates to a method of manufacturing a device for preventing counterfeiting and tampering, including a security printing layer that implements a color change or three-dimensional effect according to a location.
자기 색 가변 안료를 이용한 보안 매체는 다양한 보안 인식 수단과 이들의 조합에 의해 보안, 정품 인증 등의 각각의 용도에 맞는 구조를 가진 제품으로 제조되어 활용되고 있다. 이러한 보안 매체 중 육안으로 진위 여부를 식별할 수 있는 위조 및 변조 장치는 사용 편의성이 뛰어나 보안 인쇄 분야를 비롯한 다양한 분야에서 활용되고 있다. 이러한 육안 식별은 명시적(overt) 기능을 이용한 것인데, 이를 위해서는 시각적으로 가변 효과를 확실히 인식할 수 있을 정도의 가변 효과를 일으키는 기술이 필요하다.A security medium using a magnetic color variable pigment is manufactured and utilized as a product having a structure suitable for each purpose such as security and genuine authentication by various security recognition means and combinations thereof. Among these security media, counterfeiting and tampering devices that can identify authenticity with the naked eye have excellent ease of use and are being used in various fields including security printing. Such visual identification uses an overt function, and for this, a technique for generating a variable effect sufficient to visually recognize the variable effect is required.
예를 들어, 대한민국 공개특허공보 10-2018-0018612호에서는 기재 사이에 삽입된 색 가변층에 포함된 자성체와 일반 안료가 용매의 비중과 외력에 의해 일방으로 편재되도록 구성하여 외부 자기장, 중력 등의 요인에 의해 색 가변 효과를 발생시키도록 하고 있다. 이러한 효과를 이용하면 다양한 형태의 보안 정보를 표시할 수 있으나, 이는 외부 자기장의 인가가 필요하거나, 색 가변 효과에 대한 사전 정보를 이용자가 인식하고 있어야 할 뿐만 아니라 색 가변이 뚜렷하지 않아 인식에 어려움을 겪는 경우가 발생하는 문제점이 있다.For example, in Korean Patent Laid-Open Publication No. 10-2018-0018612, the magnetic material and general pigment included in the color variable layer inserted between the substrates are configured to be localized in one direction by the specific gravity of the solvent and external force, so that external magnetic field, gravity, etc. The color change effect is caused by factors. Using this effect, various types of security information can be displayed, but it requires the application of an external magnetic field or the user must be aware of the prior information about the color change effect, and it is difficult to recognize because the color change is not clear. There is a problem that occurs when experiencing
또한, 대한민국 공개특허공보 10-2017-0124763호에서는 위변조 방지용 인쇄물을 구성하는 정보 전달층은 광학 가변성 잉크(optically variable pigment, OVP), 열감응 잉크, UV 잉크, 형광 잉크 또는 홀로그램 중 어느 하나 또는 이들의 조합에 의해 형성된 제1 가변층 및 자기 색 가변 물질(magnetically color turnable photonic crystal ink, MTX)에 의해 형성된 제2 가변층으로 구성되어 자기 색 가변 물질에 의한 자기장에 대한 색 가변 효과에 더하여 다양한 잉크의 조합에 의한 색 가변 효과를 구현할 수 있도록 하고 있다. In addition, in Korean Patent Application Laid-Open No. 10-2017-0124763, the information transfer layer constituting the forgery prevention printout is any one or these of optically variable pigment (OVP), thermal ink, UV ink, fluorescent ink, or hologram. It is composed of a first variable layer formed by the combination of a magnetically color turnable photonic crystal ink (MTX) and a second variable layer formed of a magnetically color turnable photonic crystal ink (MTX), and in addition to the color change effect on the magnetic field by the magnetic color changeable material, various inks It is possible to realize the color variable effect by the combination of
그러나 이러한 종래기술의 색 가변 효과는 주위 환경에 따라 색 가변을 명확히 확인할 수 없는 경우가 발생하기 때문에 단순한 색 가변 효과 외에 추가적인 보안 인식 수단이 부가될 필요가 있다.However, since the color change effect of the prior art may not clearly confirm the color change depending on the surrounding environment, it is necessary to add additional security recognition means in addition to the simple color change effect.
본 발명은 상기와 같은 종래기술을 감안하여 안출된 것으로, 자기장의 인가에 의해 이동 또는 재배열되는 입자와 보는 각도에 따라 광학적 특성(색상, 반사광의 스펙트럼, 반사도, 투과도 등)이 변화되는 입자를 이용하여 보는 각도나 광원의 위치에 따라 색상이 가변되거나 특정 패턴이 변화되거나 또는 입체 효과를 구현하는 보안 인쇄층을 포함하는 위조 및 변조 방지 장치를 제조하는 방법을 제공하는 것을 그 목적으로 한다.The present invention has been devised in view of the prior art as described above, and particles whose optical properties (color, spectrum of reflected light, reflectivity, transmittance, etc.) change depending on the viewing angle and particles that are moved or rearranged by the application of a magnetic field. An object of the present invention is to provide a method of manufacturing an anti-counterfeiting and tampering device including a security printing layer that changes color or a specific pattern or implements a three-dimensional effect depending on the viewing angle or the position of the light source.
상기와 같은 과제를 해결하기 위한 본 발명의 위조 및 변조 방지 장치의 제조방법은 보는 각도 또는 광원의 위치에 따라 반사광의 색상(color), 반사광의 스펙트럼(spectrum), 반사광의 세기 또는 투과도 중 어느 하나 또는 그 이상의 광학적 특성이 변화되는 제1 입자 및 자기장의 인가에 의해 이동하여 재배열(reconfiguration)되는 제2 입자를 광경화 혹은 열경화 되는 액상 매질 내에 분산시켜 분산액을 제조하는 분산 단계; 상기 분산액을 기재의 표면에 인쇄하여 보안 인쇄층을 형성하는 인쇄 단계; 외부에서 자기장을 인가하여 상기 제2 입자를 이동 또는 회전시킴으로써 상기 제1 입자의 이동 또는 회전을 유도하여 특정한 색, 패턴, 반사광 스펙트럼 또는 이미지로 이루어진 보안정보를 형성하는 단계; 외부에서 광 또는 열을 인가하여 상기 제1 입자 및 제2 입자를 초기 배열(configuration)에서 다른 배열로 재배열(reconfiguration)되되, 상기 재배열은 비가역적인 것으로서 가변된 제1 입자 및 제2 입자의 배열이 경화되어 보안 소자 층을 형성시키는 단계;를 포함하는 것을 특징으로 한다.The manufacturing method of the anti-counterfeiting and tampering device of the present invention for solving the above problems is any one of the color of the reflected light, the spectrum of the reflected light, the intensity or the transmittance of the reflected light according to the viewing angle or the position of the light source or a dispersion step of preparing a dispersion by dispersing the first particles whose optical properties are changed and the second particles that are moved and reconfigured by the application of a magnetic field in a liquid medium to be photocured or thermally cured; a printing step of printing the dispersion on the surface of the substrate to form a security printing layer; Forming security information consisting of a specific color, pattern, reflected light spectrum or image by inducing movement or rotation of the first particle by moving or rotating the second particle by applying a magnetic field from the outside; By applying light or heat from the outside, the first particles and the second particles are reconfigured from an initial configuration to another arrangement, but the rearrangement is irreversible. and curing the array to form the security element layer.
또 다른 실시예에 따른 본 발명의 위조 및 변조 방지 장치의 제조방법은 보는 각도 또는 광원의 위치에 따라 반사광의 색상(Color), 반사광의 스펙트럼(Spectrum), 반사광의 세기 또는 투과도 중 어느 하나 또는 그 이상의 광학적 특성이 변화되는 제1 입자 및 자기장의 인가에 의해 이동하여 재배열(reconfiguration)되는 제2 입자를 액상 매질 내에 분산시켜 분산액을 제조하는 분산 단계; 상기 분산액을 광투과되는 매질을 사용하여 캡슐화 시키는 캡슐 제조 단계; 상기 캡슐을 기재에 인쇄하여 보안소자 층을 형성하는 단계;를 포함하며, 외부 자기장의 인가에 의해 제2 입자가 이동하며, 상기 제2 입자의 이동에 의해 상기 제1 입자가 이동되어 상기 제1 입자에 의한 색상, 패턴 또는 입체효과가 가역적으로 변하여 제1 입자 및 제2 입자의 초기 배열(configuration)에서 다른 배열로 재배열되는 것을 특징으로 한다.According to another embodiment of the present invention, the method of manufacturing an anti-counterfeiting and tampering device includes any one of a color of reflected light, a spectrum of reflected light, intensity of reflected light, or transmittance according to a viewing angle or location of a light source. Dispersing step of preparing a dispersion by dispersing the first particles having the above optical properties and second particles that are reconfigured by moving by application of a magnetic field in a liquid medium; Capsule manufacturing step of encapsulating the dispersion using a light-transmitting medium; forming a security element layer by printing the capsule on a substrate; includes, wherein the second particles are moved by the application of an external magnetic field, and the first particles are moved by the movement of the second particles, so that the first It is characterized in that the color, pattern or steric effect by the particles is reversibly changed and rearranged from the initial configuration of the first particle and the second particle to another arrangement.
또한, 상기 분산 단계를 통해 제조한 분산액을 광투과되는 매질을 사용하여 캡슐화시키는 캡슐화 단계를 추가적으로 포함함으로써 상기 보안 소자층을 캡슐을 포함하는 보안 소자층으로 형성할 수도 있다.In addition, the security element layer may be formed as a security element layer including a capsule by additionally including an encapsulation step of encapsulating the dispersion prepared through the dispersion step using a light-transmitting medium.
또한, 상기 제1 입자는 Fe, Ni, Co 중 적어도 어느 하나의 원소를 포함하는 강자성체로 구성되며, 상기 강자성체는 착자를 통해 자화되는 것일 수 있다.In addition, the first particle may be composed of a ferromagnetic material including at least one of Fe, Ni, and Co, and the ferromagnetic material may be magnetized through magnetization.
또한, 상기 제2 입자는 외부 자기장의 인가에 의해 광결정 현상을 발현하도록 규칙적으로 배열되도록 하여 상기 보안 소자층이 광결정 광학 효과를 구현하도록 할 수도 있다.In addition, the second particles may be regularly arranged to express a photonic crystal phenomenon by application of an external magnetic field, so that the security element layer implements a photonic crystal optical effect.
또한, 상기 제1 입자는 판상(flake) 형태 입자, 적어도 일면이 각도에 따라 색상이나 반사광이 변화되는 입자, 적어도 일면이 거울(Mirror) 특성을 나타내는 입자, 적어도 일면이 금속 광택 특성을 나타내는 입자, 양면의 색상이 서로 다른 입자 중 어느 하나 또는 그 이상의 입자이며, 상기 입자의 직경이 1 내지 50㎛일 수 있다.In addition, the first particle is a flake-shaped particle, a particle whose color or reflected light changes depending on an angle on at least one side, a particle whose at least one side exhibits a mirror property, a particle whose at least one side exhibits a metallic luster property, Any one or more particles of particles having different colors on both sides may have a diameter of 1 to 50 μm.
또한, 상기 제1 입자로 적어도 하나의 자성체를 포함한 물질을 사용하여, 외부 자기장의 인가에 의해 상기 제2 입자 및 상기 제1 입자가 복합적으로 이동하여 제1 입자에 의한 광학 특성 및 제2 입자에 의한 광학 특성이 함께 발현할 수 있다.In addition, by using a material including at least one magnetic material as the first particle, the second particle and the first particle move complexly by the application of an external magnetic field, thereby increasing the optical properties and the second particle by the first particle. optical properties can be expressed together.
또한, 상기 제2 입자는 자성체이며, 상기 제2 입자는 강자성체 입자, 초상자성체 입자, 구형(Sphere) 형태 입자, 판상(flake) 형태 입자, 외부 자기장에 의해 자기영동(magnetophoretic) 구동을 하는 입자, 외부 자기장에 의해 자기유동(magnetorheological) 구동을 하는 입자 중 어느 하나 또는 그 이상이며, 상기 입자의 직경이 10㎚ 내지 10㎛일 수 있다.In addition, the second particle is a magnetic material, and the second particle is a ferromagnetic particle, a superparamagnetic particle, a sphere-shaped particle, a flake-shaped particle, a particle that drives magnetophoretic by an external magnetic field, Any one or more of particles that are driven magnetically by an external magnetic field, and the diameter of the particles may be 10 nm to 10 μm.
또한, 상기 제2 입자는 Fe, Ni, Co 중 적어도 하나의 원소를 포함할 수 있다.In addition, the second particle may include at least one element of Fe, Ni, and Co.
또한, 상기 제2 입자의 밀도는 상기 제1 입자의 밀도와 같거나 또는 더 크며, 상기 제2 입자에 대한 상기 제1 입자의 밀도비는 1.1 이상인 것일 수 있다.In addition, the density of the second particles may be equal to or greater than the density of the first particles, and a density ratio of the first particles to the second particles may be 1.1 or more.
또한, 상기 기재 및 상기 보안 인쇄층 사이에 광흡수층이 추가적으로 형성될 수 있다.In addition, a light absorption layer may be additionally formed between the substrate and the security printing layer.
또한, 상기 제2 입자는 자기장 인가시 하부로 편재되어 광흡수층을 형성하는 것일 수 있다.In addition, the second particles may be localized downward when a magnetic field is applied to form a light absorption layer.
또한, 상기 보안 소자층에 형성된 상기 보안정보는 패턴 또는 이미지이며, 상기 패턴 또는 이미지는 1차원 또는 2차원의 바코드, QR 코드, 숫자, 문자 중 어느 하나 또는 그 이상일 수 있다.In addition, the security information formed on the security element layer is a pattern or an image, and the pattern or image may be any one or more of a one-dimensional or two-dimensional barcode, QR code, number, and character.
또한, 상기 보안 소자층은 OVP(optically variable pigment), 펄(pearl), 발광 안료, 축광 안료, 콜레스테릭 액정 안료, 자외선 반응 물질, 적외선 반응 물질 중 어느 하나 또는 그 이상을 포함하는 것일 수 있다.In addition, the security element layer may include any one or more of an optically variable pigment (OVP), a pearl, a light emitting pigment, a phosphorescent pigment, a cholesteric liquid crystal pigment, an ultraviolet reactive material, and an infrared reactive material. .
또한, 상기 보안정보를 형성하는 단계는 상기 제1 입자 및 제2 입자를 특정한 방향으로 배열하는 것일 수 있다.Also, the forming of the security information may include arranging the first particles and the second particles in a specific direction.
또한, 상기 액상 매질은 광경화 되는 물질이고, 외부에서 조사되는 광은 자외선 영역의 광인 것일 수 있다.In addition, the liquid medium may be a photocurable material, and the light irradiated from the outside may be light in the ultraviolet region.
또한, 비가역적으로 경화된 상기 보안 소자층은 외부에서 가해지는 압력 또는 구부림(Bending) 또는 늘림(Stretching)에 의해 굴곡, 수축 또는 팽창하는 구조적 변화에 의하여 상기 보안정보가 변경되어 나타날 수 있다.In addition, the security information may be changed due to structural change in which the irreversibly hardened security element layer bends, contracts, or expands due to external pressure or bending or stretching.
또한, 상기 보안 소자층을 형성하는 단계는 외부에서 자기장을 인가한 상태에서 광 또는 열을 인가하여 위치를 고정하는 제1 단계; 상기 제1 단계의 광 또는 열 비해 더 강한 강도의 광 또는 더 높은 온도의 열을 인가하여 상기 제1 입자 및 제2 입자의 위치를 추가적으로 고정시키는 제2 단계를 포함하는 것일 수 있다.In addition, the forming of the security element layer may include: a first step of fixing a position by applying light or heat in a state in which a magnetic field is applied from the outside; It may include a second step of additionally fixing the positions of the first particles and the second particles by applying light of a stronger intensity or heat of a higher temperature than the light or heat of the first step.
또한, 상기 보안 소자층의 상부 또는 하부에, 보는 각도 또는 광원의 위치에 따라 반사광 색상, 스펙트럼, 세기 중 적어도 하나의 광특성이 변화되는 가변층이 추가적으로 형성될 수 있다.In addition, a variable layer in which at least one of a color, a spectrum, and an intensity of reflected light is changed according to a viewing angle or a position of a light source may be additionally formed above or below the security element layer.
또한, 상기 보안 소자층을 형성하는 단계는, 1차 자기장을 인가하여 특정 부분을 경화시키는 단계; 2차 자기장을 인가하여 상기 특정 부분 외의 부분을 경화시키는 단계를 포함하는 것일 수 있다.In addition, the forming of the security element layer may include curing a specific portion by applying a primary magnetic field; Applying a secondary magnetic field may include curing a portion other than the specific portion.
또한, 상기 위조 및 변조 방지 장치는 보는 각도 또는 외부에서 조사되는 광원의 위치에 따라 광학 특성이 변하는 시변각 광학 효과 및 외부에서 인가되는 자기장에 따라 광학 특성이 변하는 광결정 광학 효과를 포함하는 것일 수 있다.In addition, the anti-counterfeiting and tampering device may include a time-varying optical effect in which optical properties change depending on a viewing angle or the position of a light source irradiated from the outside, and a photonic crystal optical effect in which optical properties change according to an externally applied magnetic field. .
또한, 상기 위조 및 변조 방지 장치는 상기 위조 및 변조 방지 장치의 제조방법에 따라 제조되는 것일 수 있다.In addition, the anti-counterfeiting and tampering device may be manufactured according to the manufacturing method of the anti-counterfeiting and tampering device.
본 발명에 따른 위조 및 변조 방지 장치의 제조방법은 자기장의 인가에 의해 이동 또는 재배열되는 입자와 보는 각도에 따라 광학적 특성이 변화되는 입자를 이용하여 색 가변 또는 입체 효과를 구현하기 때문에 다양한 형태의 위조 및 변조 방지 기능을 제공할 수 있다.The method for manufacturing an anti-counterfeiting and tampering device according to the present invention uses particles that are moved or rearranged by the application of a magnetic field and particles whose optical properties change depending on the viewing angle, so that a color variable or three-dimensional effect is realized. It can provide anti-counterfeiting and tampering protection.
도 1은 본 발명에 따른 위조 및 변조 방지 장치의 구조를 나타낸 단면도이다.1 is a cross-sectional view showing the structure of an anti-counterfeiting and tampering prevention device according to the present invention.
도 2는 본 발명에 따른 외부에서 광 또는 열을 인가하여 제1 입자 및 제2 입자를 비가역적으로 경화시키는 위조 및 변조 방지 장치의 제조방법을 모식적으로 나타낸 개념도이다.2 is a conceptual diagram schematically illustrating a method for manufacturing a counterfeit and tamper-proof device for irreversibly curing first and second particles by applying light or heat from the outside according to the present invention.
도 3은 도 2의 제조방법에 의해 제조된 위조 및 변조 방지 장치에서 제1 입자의 광학적 특성과 제2 입자의 광결정 특성이 동시에 발현되는 과정을 도시한 개념도이다.FIG. 3 is a conceptual diagram illustrating a process in which an optical characteristic of a first particle and a photonic crystal characteristic of a second particle are simultaneously expressed in the device for preventing forgery and tampering manufactured by the manufacturing method of FIG. 2 .
도 4는 도 2의 제조방법에 의해 제조된 위조 및 변조 방지 장치의 사진 이미지로서, 광흡수층이 없는 상태의 광학적 특성(a) 및 광흡수층으로 흑색이 적용된 상태의 광학적 특성(b)을 나타낸 이미지이다.4 is a photographic image of the anti-counterfeiting and tampering device manufactured by the manufacturing method of FIG. 2 , and is an image showing optical characteristics (a) without a light absorbing layer and optical characteristics (b) with black applied as a light absorbing layer to be.
도 5는 본 발명에 따른 제2 입자인 광결정 입자의 이동으로 비자화성 입자인 제1 입자의 광학적 특성이 나타나는 상태를 보여주는 이미지이다. 5 is an image showing a state in which optical characteristics of a first particle, which is a non-magnetic particle, appear due to movement of a photonic crystal particle, which is a second particle, according to the present invention.
도 6은 도 5의 인쇄 단면 SEM(scanning electron microscopy) 이미지로 제1 입자가 유도 배향된 상태를 나타내는 이미지이다. 6 is a scanning electron microscopy (SEM) image of the printed cross-section of FIG. 5 , and is an image showing a state in which the first particles are inductively aligned.
도 7은 본 발명에 따른 자기장 인가 배열을 나타내는 모식도이다.7 is a schematic diagram showing an arrangement for applying a magnetic field according to the present invention.
도 8은 도 7(b)에 따른 자기 배향을 사용하여 얻어진 위조 및 변조 방지 장치의 이미지이다.Fig. 8 is an image of an anti-counterfeiting and tamper-evident device obtained using magnetic orientation according to Fig. 7(b).
도 9는 본 발명의 또 다른 실시예에 따른 위조 및 변조 방지 장치의 구조를 나타낸 단면도이다.9 is a cross-sectional view illustrating a structure of an apparatus for preventing forgery and tampering according to another embodiment of the present invention.
도 10은 도 9의 제조방법을 통해 제조된 마이크로 캡슐의 광학현미경 이미지이다.10 is an optical microscope image of the microcapsule manufactured through the manufacturing method of FIG. 9 .
도 11은 자화성 가변 플레이크를 포함하는 마이크로 캡슐이 인쇄된 필름의 자기 배향 이미지이다.11 is a self-orientation image of a film on which microcapsules containing magnetisable variable flakes are printed.
도 12는 비자화성 가변 플레이크와 광결정 입자를 포함하는 마이크로 캡슐이 인쇄된 필름의 자기 배향 이미지이다.12 is a self-aligned image of a film on which microcapsules including non-magnetizable variable flakes and photonic crystal particles are printed.
이하 도면을 참조하여 본 발명을 상세히 설명한다.Hereinafter, the present invention will be described in detail with reference to the drawings.
본 발명의 위조 및 변조 방지 장치의 제조방법은 보는 각도 또는 광원의 위치에 따라 반사광의 색상, 반사광의 스펙트럼, 반사광의 세기 또는 투과도 중 어느 하나 또는 그 이상의 광학적 특성이 변화되는 제1 입자 및 자기장의 인가에 의해 이동하여 재배열(reconfiguration) 되는 제2 입자를 광경화 또는 열경화 되는 액상 매질 내에 분산시켜 분산액을 제조하는 분산 단계; 상기 분산액을 기재의 표면에 인쇄하여 보안 인쇄층을 형성하는 인쇄 단계; 외부에서 자기장을 인가하여 상기 제2 입자를 이동 또는 회전시킴으로써 상기 제1 입자의 이동 또는 회전을 유도하여 특정한 색, 패턴, 반사광 스펙트럼 또는 이미지로 이루어진 보안정보를 형성하는 단계; 외부에서 광 또는 열을 인가하여 상기 제1 입자 및 제2 입자를 초기 배열(configuration)에서 다른 배열로 재배열(reconfiguration)되되, 상기 재배열은 비가역적인 것으로서 가변된 제1 입자 및 제2 입자의 배열이 경화되어 보안 소자층을 형성하는 단계를 포함하는 것을 특징으로 한다.The method for manufacturing an anti-counterfeiting and tampering device of the present invention is a first particle and magnetic field in which any one or more optical properties of the color of the reflected light, the spectrum of the reflected light, the intensity or transmittance of the reflected light are changed according to the viewing angle or the position of the light source. A dispersing step of dispersing the second particles, which are moved and reconfigured by application, in a liquid medium to be photocured or thermally cured to prepare a dispersion; a printing step of printing the dispersion on the surface of the substrate to form a security printing layer; Forming security information consisting of a specific color, pattern, reflected light spectrum or image by inducing movement or rotation of the first particle by moving or rotating the second particle by applying a magnetic field from the outside; By applying light or heat from the outside, the first particles and the second particles are reconfigured from an initial configuration to another arrangement, but the rearrangement is irreversible. and curing the arrangement to form the security element layer.
이러한 제조방법에 의해 제조된 위조 및 변조 방지 장치는 도 1에 도시된 바와 같은 구조로 이루어지게 된다.The anti-counterfeiting and tampering prevention device manufactured by this manufacturing method has a structure as shown in FIG. 1 .
즉, 상기 보안 소자층 내에는 제1 입자와 제2 입자가 배열되어 도 1(a)에서와 같이 불규칙적인 또는 규칙적인 배열을 이룰 수 있으며, 외부 자기장에 의해 제1 입자와 제2 입자들이 직접적 또는 간접적으로 반응하여 상기 기재의 표면에 특정하게 배열됨으로써 특정 패턴 또는 이미지가 형성되어 보안정보를 구성할 수 있다.That is, the first particles and the second particles are arranged in the security element layer to form an irregular or regular arrangement as in FIG. Alternatively, by reacting indirectly to a specific arrangement on the surface of the substrate, a specific pattern or image may be formed to constitute security information.
이러한 보안정보는 보안 소자층을 관찰 또는 관측하여 위조 및 변조 여부를 시각적으로 식별할 수 있도록 하기 위한 것으로서, 1차원 또는 2차원의 바코드, QR 코드, 숫자, 문자 중 어느 하나 또는 그 이상일 수 있으며, 특정 회사의 로고, 상표, 마크, 아이콘 등 시각적으로 확인할 수 있는 보안정보를 모두 포함할 수 있다.This security information is intended to visually identify whether forgery or falsification by observing or observing the security element layer, and may be any one or more of a one-dimensional or two-dimensional barcode, QR code, number, or character, It can include all visually identifiable security information such as a specific company's logo, trademark, mark, and icon.
즉, 상기 보안 소자층 내에 규칙적 또는 불규칙적으로 배열된 제1 입자와 제2 입자는 각각의 고유의 광학 특성(색상, 반사도, 반사스펙트럼 등)을 가지며, 이는 기재 상에 잉크로 인쇄된 패턴 또는 이미지와 같은 역할을 하게 된다.That is, the first particles and the second particles regularly or irregularly arranged in the security element layer each have their own optical properties (color, reflectivity, reflection spectrum, etc.), which are patterns or images printed with ink on the substrate. will play the same role as
상기 제1 입자는, 입자의 형태가 판상(flake) 형태 입자, 적어도 일면이 각도에 따라 색상이나 반사광이 변화되는 입자, 적어도 일면이 거울(mirror) 특성을 나타내는 입자, 적어도 일면이 금속 광택 특성을 나타내는 입자, 양면의 색상이 서로 다른 입자 중 어느 하나 또는 그 이상의 입자를 적용할 수 있는데, 시각적 효과의 구현을 고려하여 직경이 1㎛ 내지 50㎛인 입자를 사용하는 것이 바람직하다.The first particle is a particle having a flake shape, at least one side of which changes color or reflected light depending on an angle, at least one side of a particle exhibiting a mirror property, and at least one side has a metallic luster property Any one or more of the particles shown and the particles having different colors on both sides may be applied, but it is preferable to use particles having a diameter of 1 μm to 50 μm in consideration of the realization of a visual effect.
상기 제1 입자는 광학적 효과를 구현하는 것으로서, 색 변화나 입체 효과를 통한 시각적 인지가 용이하도록 입자의 형태를 다양화하고 있다. 상기 제1 입자로 비자성체를 사용하는 경우, 상기 제2 입자만 선택적으로 외부 자기장에 반응하도록 함으로써 상기 제2 입자의 이동에 이해 상기 제1 입자의 이동을 간접적으로 유도하게 하여 색 가변 효과를 구현할 수 있도록 하거나, 보는 각도 또는 광원의 위치에 따라 보안 정보의 변화를 유발할 수 있다. 상기 제1 입자로 자성체 또는 자성체와 비자성체가 적층 코팅 되거나 혼합된 물질을 사용하는 경우, 외부 자기장에 따라 상기 제1 입자 및 상기 제2 입자가 동시에 외부 자기장에 반응하도록 함으로써 제1 입자 및 제2 입자에 의한 광학 효과를 복합적으로 구현하거나, 보는 각도 또는 광원의 위치에 따라 보안 정보의 변화를 복합적으로 유발할 수 있다.The first particle implements an optical effect, and the shape of the particle is diversified to facilitate visual recognition through a color change or a three-dimensional effect. When a non-magnetic material is used as the first particle, only the second particle selectively reacts to an external magnetic field, thereby indirectly inducing the movement of the first particle to understand the movement of the second particle to realize a color-changing effect. or it may cause a change in security information depending on the viewing angle or the position of the light source. When a magnetic material or a magnetic material and a nonmagnetic material are laminated coated or a mixed material is used as the first particle, the first particle and the second particle are simultaneously reacted to the external magnetic field according to the external magnetic field. The optical effect caused by particles may be complexly implemented, or the change of security information may be compounded depending on the viewing angle or the position of the light source.
또한, 상기 제1 입자로 자성체 또는 자성체와 비자성체가 적층 코팅 되거나 혼합된 물질을 사용하는 경우, 외부 자기장에 따라 상기 제1 입자만으로도 광학 효과를 구현하거나, 보는 각도 또는 광원의 위치에 따라 보안 정보의 변화를 유발할 수 있다.In addition, when a magnetic material or a magnetic material and a nonmagnetic material are laminated coated or a mixed material is used as the first particle, an optical effect may be realized with only the first particle according to an external magnetic field, or security information according to the viewing angle or the position of the light source may cause changes in
또한, 상기 제2 입자는 자성체로서, 강자성체 입자, 초상자성체 입자, 입자의 형태가 구형인 입자, 입자 형태가 판상 형태인 입자, 외부 자기장에 의해 자기영동(magnetophoretic) 구동을 하는 입자, 외부 자기장에 의해 자기유동(magnetorheological) 구동을 하는 입자 중 어느 하나 또는 그 이상의 입자를 적용할 수 있는데, 이 역시 시각적 효과의 구현 및 광결정의 형성을 고려하여 직경이 10㎚ 내지 10㎛인 것을 사용할 수 있다.In addition, the second particle is a magnetic material, and is a ferromagnetic particle, a superparamagnetic particle, a particle having a spherical shape, a particle having a plate shape, a particle having a magnetophoretic drive by an external magnetic field, and an external magnetic field. Any one or more particles among the particles that are driven by magnetorheological by means of a magnetorheological method may be used, and those having a diameter of 10 nm to 10 μm may be used in consideration of the realization of the visual effect and the formation of photonic crystals.
상기 제2 입자로서 사용되는 강자성체 입자, 초상자성체 입자, 자기영동 입자, 자기유동 입자 등의 자성체는 출원인의 종래기술(등록특허 10-1715058호, 등록특허 10-1335719호 등)에 따른 광결정 특성을 나타낼 수 있는 입자를 사용할 수 있는데, 구형뿐만 아니라 시각적 효과를 고려하여 판상 형태의 입자를 적용할 수도 있다.Magnetic materials such as ferromagnetic particles, superparamagnetic particles, magnetophoretic particles, and magnetic fluid particles used as the second particles have photonic crystal properties according to the applicant's prior art (Registration Patent No. 10-1715058, Patent No. 10-1335719, etc.) Particles that can be displayed can be used, and not only spherical particles but also plate-shaped particles can be applied in consideration of visual effects.
또한, 상기 보안 소자층은 OVP(optically variable pigment), 펄(pearl), 발광 안료, 축광 안료, 콜레스테릭 액정 안료, 자외선 흡수 또는 반사 물질, 적외선 흡수 또는 반사 물질, 온도에 따른 색 변화 또는 투과도 변화 물질 중 어느 하나 또는 그 이상을 추가적으로 포함할 수 있다. 이러한 추가 성분의 부가를 통해 입사되는 광의 파장에 의한 반응이나 광의 입사에 따른 안료의 색 변화 효과를 제1 및 제2 입자에 의한 광학 효과와 결합한 형태의 광학 효과를 유발할 수 있기 때문에, 시각적으로 위조 및 변조 여부를 쉽게 확인할 수 있는 식별력을 향상시킬 수 있게 된다.In addition, the security element layer is an optically variable pigment (OVP), pearl, luminescent pigment, photoluminescent pigment, cholesteric liquid crystal pigment, ultraviolet absorbing or reflective material, infrared absorbing or reflective material, color change or transmittance according to temperature Any one or more of the change materials may be additionally included. Since it is possible to cause an optical effect in the form of a reaction by the wavelength of the incident light or the effect of changing the color of the pigment according to the incident light with the optical effect of the first and second particles through the addition of such an additional component, it is visually counterfeit And it is possible to improve the identification ability to easily check whether or not tampering.
상기 제1 입자와 제2 입자는 상기 보안 소자층 내에 분산되어 구성될 수 있지만, 이와는 별도로 상기 제1 입자와 제2 입자를 분산한 후 상기 분산액을 광투과되는 매질을 사용하여 캡슐화시킬 수도 있다.The first particle and the second particle may be dispersed in the security element layer, but separately, the first particle and the second particle may be dispersed and then the dispersion may be encapsulated using a light-transmitting medium.
이러한 제조방법을 적용하면 도 1(b)에서와 같이 제1 입자와 제2 입자를 포함하는 캡슐이 내포된 보안 소자층을 형성할 수 있게 된다. 이러한 캡슐화 기술은 출원인이 출원한 특허(공개특허 10-2018-0018612호, 공개특허 10-2019-0022302호, 등록특허 10-1778198호 등)에 공지된 방법에 의해 수행할 수 있으며, 3㎛이상 300㎛ 마이크로 크기의 캡슐 형태로서 이용할 수도 있다. 상기 캡슐을 포함하는 보안 소자층은 제1 입자와 제2 입자의 배열을 단위 셀 형태로 형성하여 색 변화를 유도하기 때문에 입자가 분산된 보안 소자층과는 다른 시각적 효과를 구현할 수 있게 된다.When this manufacturing method is applied, it is possible to form a security element layer in which a capsule including a first particle and a second particle is included, as shown in FIG. 1( b ). This encapsulation technology can be performed by a method known in the patents applied by the applicant (Patent Publication No. 10-2018-0018612, Patent Publication No. 10-2019-0022302, Registration Patent No. 10-1778198, etc.), and 3㎛ or more It can also be used in the form of capsules having a size of 300 μm. Since the security element layer including the capsule induces a color change by forming an arrangement of the first particles and the second particles in the form of a unit cell, it is possible to implement a visual effect different from that of the security element layer in which the particles are dispersed.
또한, 상기 제1 입자와 제2 입자의 비중 차이를 통해 상기 제2 입자가 보안인쇄층의 상단에 위치하여 광학적 특성 효과를 극대화하도록 구현할 수도 있는데, 제2 입자의 비중에 대한 제1 입자의 비중의 상대값은 1.05 이상, 바람직하게는 1.05 내지 8.0일 수 있다.In addition, through the difference in specific gravity between the first particle and the second particle, the second particle may be positioned at the top of the security printing layer to maximize the optical property effect, and the specific gravity of the first particle to the specific gravity of the second particle The relative value of may be 1.05 or more, preferably 1.05 to 8.0.
도 2에서는 본 발명에 따른 위조 및 변조 방지 장치의 제조 방법을 모식적으로 나타내고 있다.2 schematically shows a method for manufacturing an anti-counterfeiting and tampering prevention device according to the present invention.
도 2를 참조하면, 상기 제1 입자와 제2 입자는 기재의 표면에 인쇄된 상기 보안 인쇄층 상에 규칙적 또는 불규칙적으로 배열된 상태로 존재하는데(초기상태), 상기 제1 입자와 제2 입자에 외부 자기장을 인가하면 자기장에 반응하는 상기 제2 입자의 위치 또는 배열이 변하게 되며(단계 1), 이 상태에서 자외선 등의 광을 조사하면 상기 보안 인쇄층이 비가역적으로 경화되기 때문에 상기 입자의 배열이 고정화되게 된다(단계 2). 따라서 입자의 배열과 고정화를 수행하기 위하여 상기 단계 1과 단계 2를 순차적으로 수행할 수도 있지만 거의 동시에 수행할 수도 있으며, 이는 적용하는 입자의 종류와 조합에 따라 달라질 수 있다.Referring to FIG. 2 , the first particles and the second particles exist in a regular or irregularly arranged state on the security printed layer printed on the surface of the substrate (initial state), and the first particles and the second particles are When an external magnetic field is applied to the magnetic field, the position or arrangement of the second particles reacting to the magnetic field is changed (step 1), and when irradiated with light such as ultraviolet rays in this state, the security printing layer is irreversibly cured, so the particles The array becomes immobilized (step 2). Therefore, in order to perform particle arrangement and immobilization, steps 1 and 2 may be sequentially performed, but may also be performed almost simultaneously, which may vary depending on the type and combination of particles to be applied.
또한, 상기 제2 입자의 이동을 통해 상기 제1 입자도 함께 이동하는 현상이 발생하기 때문에 이러한 공정을 통해 인쇄된 보안 인쇄층을 특정한 패턴이나 이미지로 형성할 수 있다. 상기 제1 입자가 비자성체인 경우 상기 제1 입자는 제1 입자의 이동에 의해 결정되며, 상기 제1 입자가 자성체를 포함한 경우 상기 제1 입자의 위치는 제1 입자의 이동과 제2 입자의 이동이 복합적으로 작용하여 결정된다. 이러한 특정한 패턴이나 이미지는 주로 색상, 입체 효과, 발광 효과 등의 입자의 재배열에 따라 얻을 수 있는 광학적 효과를 의미하며, 바코드, QR 코드, 숫자, 문자, 로고, 상표, 마크, 아이콘 등의 인쇄된 정보 자체가 입자의 이동에 의해 변화되는 것을 의미하는 것은 아니다.In addition, since the first particle also moves through the movement of the second particle, the printed security print layer can be formed in a specific pattern or image through this process. When the first particle is a non-magnetic material, the first particle is determined by movement of the first particle, and when the first particle includes a magnetic material, the position of the first particle is determined by the movement of the first particle and the movement of the second particle. Movement is determined by a complex action. These specific patterns or images mainly refer to optical effects that can be obtained according to the rearrangement of particles such as color, three-dimensional effect, and luminous effect. It does not mean that the information itself is changed by the movement of particles.
또한, 별도의 광 흡수층이 없는 경우 제1 입자의 광학적 특성이 인쇄된 기재의 난반사에 영향을 받기 때문에 색 선명도가 낮을 수 있다. 이때 제2 입자의 이동은 단순 정보 표시로의 역할만 수행하는 것이 아니라 광 흡수층 기능을 구현할 수도 있으므로, 이를 통해 상기 제1 입자의 광학적 특성을 향상시킬 수 있다. 제2 입자는 다양한 색상을 가질 수 있으나 가장 이상적으로 블랙 입자를 사용할 수 있다. 블랙의 정도가 높아질 경우 이에 대비하여 제1 입자의 광학적 특성이 향상될 수 있다. 또한, 상기 제2 입자의 색상에 따라 파장 및 선명도가 차이가 있을 수 있다.In addition, in the absence of a separate light absorbing layer, color clarity may be low because optical properties of the first particles are affected by diffuse reflection of the printed substrate. In this case, the movement of the second particle may not only serve as a simple information display function, but may also implement a light absorption layer function, thereby improving the optical properties of the first particle. The second particles may have various colors, but most ideally, black particles may be used. When the degree of black increases, the optical properties of the first particles may be improved. In addition, there may be a difference in wavelength and sharpness according to the color of the second particle.
또한, 상기 경화를 위해 조사되는 광으로는 자외선 영역의 파장을 이용하는 것이 바람직한데, 이를 통하여 자외선 경화형 수지를 함유하는 상기 보안 인쇄층의 비가역적 경화를 쉽게 달성할 수 있다. 또한, 상기 자외선 경화형 수지와 함께 열 경화성 수지를 사용하거나 열 경화성 수지를 단독으로 사용하면 열에 의해서도 비가역적 경화가 일어날 수 있다.In addition, it is preferable to use a wavelength in the ultraviolet region as the light irradiated for the curing, and through this, irreversible curing of the security print layer containing the ultraviolet curable resin can be easily achieved. In addition, when a thermosetting resin is used together with the ultraviolet curable resin or a thermosetting resin is used alone, irreversible curing may occur even by heat.
또한, 비가역적 경화를 통해 상기 보안 소자층을 형성하는 방법으로서 특정 파장의 광이나 특정 온도의 열을 인가하되, 외부에서 광 또는 열을 인가하여 입자의 위치를 고정하고(제1 단계), 이어서 상기 제1 단계보다 더 강한 강도의 광 또는 더 높은 온도의 열을 인가하여 추가적으로 고정시키는 단계(제2 단계)로 나누어 경화 과정을 수행할 수도 있다. 또한, 1차 자기장을 인가하여 특정 부분을 우선적으로 경화시킨 후, 2차 자기장을 인가하여 상기 특정 부분 외의 부분을 경화시키는 과정을 통해 비가역적 경화를 수행할 수도 있는데, 이 경우, 상기 자기장의 세기나 파장을 달리할 수 있고, 이에 대응하는 액상 매질을 사용하여 경화를 순차적으로 일어나도록 할 수 있다. 이러한 과정을 통해 상기 보안 정보 자체를 서로 다른 입자의 배열로 복합적으로 구성할 수도 있다.In addition, as a method of forming the security element layer through irreversible curing, light of a specific wavelength or heat of a specific temperature is applied, but the position of the particles is fixed by applying light or heat from the outside (first step), and then The curing process may be performed by dividing it into a step (second step) of additionally fixing by applying a higher intensity of light or heat of a higher temperature than in the first step. In addition, after applying a primary magnetic field to preferentially harden a specific part, irreversible hardening may be performed by applying a secondary magnetic field to harden a part other than the specific part. In this case, the strength of the magnetic field However, the wavelength can be changed, and curing can occur sequentially by using a corresponding liquid medium. Through this process, the security information itself may be complexly constituted by an arrangement of different particles.
즉, 상기 경화 과정을 전술한 바와 같이 2 단계로 나누어 수행하면, 제조된 보안 소자층 내에서 입자가 배열을 장기간 안정적으로 유지하며 외부의 에너지에 의해 입자의 배열이 바뀌거나 열화되는 현상을 억제할 수 있고, 입자 배열이 다른 영역을 구성하여 광결정 효과가 서로 다르게 발생하도록 할 수도 있게 된다.That is, if the curing process is divided into two steps as described above, the particle arrangement in the manufactured security element layer is stably maintained for a long period of time, and the arrangement of the particles due to external energy is changed or deteriorated. It is also possible to configure regions with different particle arrangements so that the photonic crystal effect occurs differently.
또한, 상기 보안 소자층의 상부 또는 하부에 보는 각도 또는 광원의 위치에 따라 반사광의 색상, 반사광의 스펙트럼, 반사광의 세기 중 적어도 어느 하나의 광특성이 변화되는 가변층을 추가적으로 형성함으로써 보안 소자층 자체의 광학 효과와 더불어 상기 가변층의 광학 효과가 추가되도록 할 수도 있다. 이러한 가변층을 부가한 위조 및 변조 방지 장치는 또 다른 광학 효과의 구현이 가능하기 때문에 용도에 따라 적절히 선택하여 적용할 수 있다.In addition, the security element layer itself by additionally forming a variable layer in which the optical characteristics of at least one of the color of the reflected light, the spectrum of the reflected light, and the intensity of the reflected light are changed according to the viewing angle or the position of the light source on the upper or lower part of the security element layer In addition to the optical effect of the variable layer, the optical effect of the variable layer may be added. The anti-counterfeiting and tampering device to which such a variable layer is added can implement another optical effect, so it can be appropriately selected and applied according to the purpose.
이와 같이 비가역적으로 경화되어 보안 소자층을 형성하면 도 2의 단계 3에서와 같이 보는 각도에 따라 색상 변화, 패턴 변화, 입체 효과, 발광 효과 등의 광학 효과가 가변 되게 되므로 사용자는 보는 각도를 달리하거나 광원의 위치를 변경하는 것만으로 위조 및 변조 여부를 쉽게 인식할 수 있게 된다. 또는 특정 기재에 인쇄된 보안요소를 가압하거나 늘리거나 구부림으로써 색상 변화, 패턴 변화, 입체 효과, 발광 효과 등의 시각적 효과가 나타나게 할 수도 있다 When the security element layer is formed by being irreversibly cured in this way, as in step 3 of FIG. 2, optical effects such as color change, pattern change, three-dimensional effect, and light emitting effect are changed according to the viewing angle, so the user can change the viewing angle. Alternatively, by changing the position of the light source, it is possible to easily recognize whether it is forged or tampered with. Alternatively, visual effects such as color change, pattern change, three-dimensional effect, and light emitting effect may be displayed by pressing, stretching, or bending the security element printed on a specific substrate.
또한, 상기 제2 입자로서 자기장의 인가에 의해 이동, 회전 또는 재배열될 수 있는 판상 형태의 입자를 채용하면, 제2 입자의 이동에 의해 재배열된 후 상기 보안 소자층 내에서 도 3(a)에서와 같은 배열을 형성할 수 있게 된다. 제1 입자 및 제2 입자를 모두 판상 형태의 입자로 함으로써 도 3(a)에서와 같은 광학 효과를 구현할 수 있는데, 이러한 배열에서는 보는 각도의 변화에 따라 색상, 입체 효과, 발광 효과 등의 시각적 효과가 뚜렷하게 발현되기 때문에 이를 통해 인쇄된 정보의 위조 및 변조 여부를 인식할 수 있게 된다. 또는, 특정 기재에 인쇄된 보안 소자층을 가압하거나 구부림으로써 색상 변화, 패턴 변화, 입체 효과, 발광 효과 등의 광학 효과를 구현할 수도 있다.In addition, if a plate-shaped particle that can be moved, rotated, or rearranged by application of a magnetic field is employed as the second particle, it is rearranged by the movement of the second particle and then in the security element layer in FIG. 3(a) ) to form an array as in By using both the first particle and the second particle as plate-shaped particles, the optical effect as in Fig. 3(a) can be realized. is clearly expressed, so it is possible to recognize whether the printed information has been forged or altered. Alternatively, optical effects such as color change, pattern change, three-dimensional effect, and light emitting effect may be implemented by pressing or bending the security element layer printed on a specific substrate.
또한, 상기 제1 입자로서 자기장의 인가에 의해 이동, 회전 또는 재배열될 수 있는 입자를 채용하면, 외부 자기장의 인가에 따라 상기 제2 입자와 상기 제1 입자가 각각 자기장에 따라 이동, 회전 또는 재배열 됨으로써, 보는 각도 또는 외부 광원 위치 변화에 따라 상기 제1 입자와 제2 입자에 의한 복합된 색상변화, 입체 효과, 발광효과를 유도할 수 있다. 제1 입자 및 제2 입자가 외부 자기장에 따라 반응하는 경우, 제1 입자 및 제2 입자가 외부 자기장에 따른 이동 및 재배열 현상이 다르게 발현되도록 구성하거나, 각도에 따른 광학 특성(색상, 반사도, 반사 스펙트럼 등)을 서로 대조적으로 선택함으로써, 각각의 입자들에 의한 서로 다른 시각적 효과에 의한 위조 및 변조 여부의 인식이 가능하게 된다.In addition, when a particle that can be moved, rotated, or rearranged by application of a magnetic field is employed as the first particle, the second particle and the first particle move, rotate, or By rearranging, it is possible to induce a complex color change, a three-dimensional effect, and a light emitting effect by the first and second particles according to a change in a viewing angle or a position of an external light source. When the first particle and the second particle react according to an external magnetic field, the first particle and the second particle are configured to exhibit different movement and rearrangement phenomena according to the external magnetic field, or optical properties (color, reflectivity, By contrasting the reflection spectrum, etc.), it is possible to recognize whether it is forged or tampered with by different visual effects by each particle.
이러한 보안 소자층을 적용하여 기재에 패턴을 형성한 예로서 도 4를 참조하면, 보는 각도에 따라 뚜렷한 원형 패턴 형상이 시각적으로 나타나게 되므로 제품의 위조 및 변조 여부를 상기 원형 패턴을 인식함으로써 확인할 수 있게 된다.Referring to FIG. 4 as an example of forming a pattern on a substrate by applying such a security element layer, a clear circular pattern shape is visually displayed depending on the viewing angle, so that counterfeiting or tampering of the product can be confirmed by recognizing the circular pattern. do.
또한, 상기 제2 입자로서 종래기술에 따른 규칙적 재배열을 통해 광결정을 구성하는 입자를 적용할 수 있는데, 이 경우, 상기 제2 입자는 외부 자기장의 인가에 의해 배열될 때 광결정 현상을 발현하도록 규칙적으로 배열할 수 있다. 이러한 과정을 통해 형성된 보안 소자층은 도 3(b)와 같은데, 이러한 보안 소자층은 보는 각도에 따른 시각적 효과와 더불어 외부 자기장의 인가에 따른 특정 광결정 패턴이 형성되고, 형성된 광결정 패턴의 각도에 따른 색가변 효과를 동시에 발현할 수 있기 때문에 시변각 광학 효과와 광결정 광학 효과를 동시에 구현할 수 있으며, 각각의 입자들에 의한 서로 다른 시각적 효과에 의한 위조 및 변조 여부의 인식이 가능하게 된다.In addition, as the second particle, particles constituting the photonic crystal through regular rearrangement according to the prior art may be applied. can be arranged as The security element layer formed through this process is the same as that of FIG. 3(b). In this security element layer, a specific photonic crystal pattern is formed according to the application of an external magnetic field as well as a visual effect according to the viewing angle, and depending on the angle of the formed photonic crystal pattern Since the color-changing effect can be expressed at the same time, it is possible to simultaneously implement the optically variable angle optical effect and the photonic crystal optical effect, and it is possible to recognize whether forgery or modulation is caused by different visual effects by each particle.
이러한 보안 소자층을 적용하여 기재에 원형 패턴을 형성한 예로서 도 5를 참조하면, 특정한 보는 각도에서의 패턴이 시각적으로 뚜렷이 인식 가능하게 됨과 함께 외부 자기장의 인가에 의해 상기 원형 패턴의 일정 부분에 형성된 광결정 패턴이 가변되기 때문에 시변각 광학 효과와 광결정 광학 효과의 동시 구현을 통해 제품의 위조 및 변조 여부의 인식이 가능하게 된다.Referring to FIG. 5 as an example of forming a circular pattern on a substrate by applying such a security element layer, the pattern at a specific viewing angle can be clearly recognized visually and is applied to a certain part of the circular pattern by the application of an external magnetic field. Since the formed photonic crystal pattern is variable, it is possible to recognize whether a product is forged or modulated through the simultaneous realization of the optically variable optical effect and the photonic crystal optical effect.
또한, 전술한 바와 같이, 상기 제1 입자로는 판상 형태 입자 적어도 일면이 각도에 따라 색상이나 반사광이 변화되는 입자, 적어도 일면이 미러 특성을 나타내는 입자, 적어도 일면이 금속 광택 특성을 나타내는 입자, 양면의 색상이 서로 다른 입자 등을 적용할 수 있는데, 도 6에서 도시한 바와 같이, 상기 제1 입자를 판상 형태 입자를 사용함으로써 보는 각도에 따른 색상 변화나 입체 효과를 얻을 수도 있는데, 각도에 따라 색상이나 반사광이 변화되는 입자나 거울(mirror) 특성, 금속 광택 특성이 있는 입자를 사용하면 보는 각도에 따른 색상 변화를 더욱 뚜렷하게 할 수도 있다. 또한, 입자의 양면이 서로 다른 색상을 가짐으로써 보는 각도에 따라 입자의 일면에서 양면이 보일 때 색이 가변 되는 현상을 일으킬 수도 있게 된다. 이 경우, 상기 적어도 일면이 각도에 따라 색상이나 반사광이 변화되는 입자, 적어도 일면이 거울(mirror) 특성을 나타내는 입자, 적어도 일면이 금속 광택 특성을 나타내는 입자, 양면의 색상이 서로 다른 입자는 입자의 일면과 타면의 광학적 특성을 달리하는 것으로서 구형 입자를 사용할 수도 있으나, 광학적 특성의 발현을 위해 판상 형태의 입자를 사용하는 것이 바람직하다.In addition, as described above, as the first particle, at least one side of the plate-shaped particle has a color or reflected light that changes depending on the angle, at least one side of the particle shows a mirror property, at least one side of the particle shows a metallic luster property, both sides Particles having different colors can be applied, and as shown in FIG. 6 , by using the plate-shaped particles for the first particle, a color change or a three-dimensional effect can be obtained depending on the viewing angle. However, the color change according to the viewing angle can be made more distinct by using particles that change the reflected light, mirror properties, or particles with metallic luster properties. In addition, since both sides of the particle have different colors, it is possible to cause a phenomenon in which the color changes when both sides of the particle are viewed from one side of the particle depending on the viewing angle. In this case, the particles whose color or reflected light changes depending on the angle of the at least one surface, the particles whose at least one surface exhibits mirror properties, the particles whose at least one surface exhibits metallic luster properties, and the particles whose both sides have different colors Although spherical particles may be used as different optical properties of one surface and the other surface, it is preferable to use plate-shaped particles for the expression of optical properties.
또한, 본 발명의 또 다른 제조 방법으로서 비가역적 경화 과정을 수행하지 않고 위조 및 변조 방지 장치를 제조할 수도 있다.In addition, as another manufacturing method of the present invention, it is possible to manufacture an anti-counterfeiting and tampering prevention device without performing an irreversible curing process.
도 9를 참조하여 상기 제조방법을 설명하면, 보는 각도 또는 광원의 위치에 따라 반사광의 색상, 반사광의 스펙트럼, 반사광의 세기 또는 투과도 중 어느 하나 또는 그 이상의 광학적 특성이 변화되는 제1 입자 및 자기장의 인가에 의해 이동 또는 재배열되는 제2 입자를 액상 매질 내에 분산시켜 분산액을 제조하는 분산 단계; 상기 분산액을 광투과되는 매질을 사용하여 캡슐화 시키는 캡슐 제조 단계; 상기 캡슐을 기재에 인쇄하여 보안 소자층을 형성하는 단계를 포함하여 상기 위조 및 변조 방지 장치를 제조할 수 있다.When the manufacturing method is described with reference to FIG. 9, the optical properties of any one or more of the color of the reflected light, the spectrum of the reflected light, the intensity of the reflected light, or the transmittance according to the viewing angle or the position of the light source are changed. A dispersion step of dispersing the second particles that are moved or rearranged by application in a liquid medium to prepare a dispersion; Capsule manufacturing step of encapsulating the dispersion using a light-transmitting medium; The anti-counterfeiting and tampering prevention device can be manufactured, including the step of forming a security element layer by printing the capsule on a substrate.
이와 같이 제조된 보안 소자층은 상기 캡슐 내에서 상기 제1 입자 및 제2 입자가 분산된 상태로 있기 때문에, 외부 자기장의 인가에 의해 제2 입자가 이동하며, 상기 제2 입자의 이동에 의해 상기 제1 입자의 이동이 색상, 패턴 또는 입체효과가 변하게 되며, 상기 외부 자기장을 제거하면 다시 상기 제1 입자와 제2 입자가 분산된 상태로 돌아오기 때문에 입자의 배열이 초기 배열과 가변된 배열 상태 사이에서 가역적으로 변하게 된다.In the security element layer manufactured as described above, since the first particles and the second particles are in a dispersed state in the capsule, the second particles move by the application of an external magnetic field, and the second particles move by the movement of the second particles. When the first particle moves, the color, pattern, or three-dimensional effect changes, and when the external magnetic field is removed, the first particle and the second particle return to a dispersed state, so the arrangement of the particles is changed from the initial arrangement. change reversibly between
상기 제1 입자 및 제2 입자는 전술한 바와 같이 다양한 형상, 크기, 비중의 입자를 사용할 수 있고, OVP(optically variable pigment), 펄(pearl), 발광 안료, 축광 안료, 콜레스테릭 액정 안료, 자외선 발광 또는 흡수 물질, 적외선 발광 또는 흡수 물질 중 어느 하나 또는 그 이상의 추가 성분을 포함할 수도 있으며, 상기 보안 소자층의 상부 또는 하부에, 보는 각도 또는 광원의 위치에 따라 반사광 색상, 스펙트럼, 세기 중 적어도 하나의 광특성이 변화되는 가변층이 추가적으로 형성할 수도 있기 때문에 또 다른 형태의 광학 효과를 구현할 수 있게 된다.The first particles and the second particles can use particles of various shapes, sizes, and specific gravity as described above, and OVP (optically variable pigment), pearl (pearl), luminescent pigment, photoluminescent pigment, cholesteric liquid crystal pigment, It may include any one or more additional components of an ultraviolet light emitting or absorbing material, an infrared light emitting or absorbing material, and the color, spectrum, and intensity of the reflected light, depending on the viewing angle or the position of the light source, on the upper or lower portion of the security element layer. Since the variable layer in which at least one optical characteristic is changed may be additionally formed, another type of optical effect may be realized.
또한, 가역적으로 입자의 위치가 변할 수 있는 위조 및 변조 방지 장치에서는 외부 자기장의 인가 여부에 따라 광학 효과가 변화할 수 있기 때문에 또 다른 용도의 위조 및 변조 방지 장치를 구성할 수 있게 된다. 따라서 본 발명에 따른 위조 및 변조 방지 장치는 시변각 광학 효과와 광결정 광학 효과의 적절한 조합에 따른 다양한 보안 정보 표시가 가능하며, 이를 제품에 부착하거나 인쇄함으로써 이용자가 시각적으로 정품 여부를 쉽게 확인할 수 있게 된다.In addition, in the anti-counterfeiting and tampering prevention device in which the position of particles can be changed reversibly, the optical effect can be changed depending on whether an external magnetic field is applied, so that an anti-counterfeiting and tampering device for another purpose can be configured. Therefore, the anti-counterfeiting and tampering device according to the present invention is capable of displaying various security information according to an appropriate combination of the optically variable optical effect and the photonic crystal optical effect. do.
또한, 필요에 따라, 상기 보안 소자층을 적용할 때 이를 디지털 데이터화할 수도 있는데, 가변되는 색, 패턴, 입체효과에 대한 정보를 지정된 코드로 미리 설정해 두고 삽입할 정보를 이진수 코드 및 픽셀화하여 정보를 생성한 후 이진수 코드에 따른 전자기장 신호의 변환 및 출력을 통해 데이터가 코딩되어 상기 위조 및 변조 방지 장치의 보안정보를 확인하도록 할 수 있다.In addition, if necessary, when the security element layer is applied, it can be converted into digital data. Information on variable colors, patterns, and three-dimensional effects is set in advance as a designated code, and information to be inserted is converted into binary code and pixelated information. After generating the data, the data is coded through the conversion and output of the electromagnetic field signal according to the binary code, so that the security information of the anti-counterfeiting and tampering device can be checked.
이 경우, 시각적으로 색 가변 효과를 확인하는 것이 아니라 보안정보를 스캔 또는 촬영하여 복수의 픽셀 영역을 선택하고, 상기 픽셀 영역의 색상을 이진수 코드로 변환한 후 상기 이진수 코드를 식별하여 해당 데이터를 표시하는 방식으로 보안 정보를 식별할 수 있게 된다. 또한, 조사되는 광의 방향에 따라서도 보안정보가 변경될 수 있기 때문에 상기 스캔 또는 촬영 시 특정 각도에서만 보안정보를 표시할 수 있도록 보안성능을 강화할 수도 있다. 따라서, 상기 스캔 또는 촬영은 카메라를 통해 수행하며, 상기 픽셀 영역을 이진수 코드로 변환하고 다시 데이터를 표시하는 과정은 프로그램 또는 어플리케이션에 의해 수행될 수 있으므로, 카메라가 장착된 스마트기기나 컴퓨터를 활용하여 정품인증을 할 수 있다.In this case, instead of visually confirming the color change effect, a plurality of pixel areas are selected by scanning or photographing security information, the color of the pixel areas is converted into a binary code, and the binary code is identified and the corresponding data is displayed. In this way, security information can be identified. In addition, since the security information can be changed depending on the direction of the irradiated light, the security performance can be strengthened so that the security information can be displayed only at a specific angle during the scanning or photographing. Therefore, the scanning or photographing is performed through a camera, and the process of converting the pixel area into a binary code and displaying data again can be performed by a program or an application. Authenticity can be verified.
따라서 본 발명에 따른 위조 및 변조 방지 장치의 제조방법을 적용하면 광학 효과와 광결정 효과를 적절히 배합하여 다양한 보안정보를 다중 보안 확인 방식으로 표시할 수 있어 종래의 위조 및 변조 방지 장치에 비해 범용성이 향상되며 다양한 보안 물품에 활용이 가능하다.Therefore, if the manufacturing method of the anti-counterfeiting and tampering device according to the present invention is applied, various security information can be displayed in a multiple security check method by appropriately combining the optical effect and the photonic crystal effect, so that the versatility is improved compared to the conventional anti-counterfeiting and tampering device and can be used for various security items.
이하 본 발명의 이해를 돕기 위하여 바람직한 실시예를 제시한다. 다만 하기 실시예는 본 발명을 상세히 설명하기 위한 하나의 참조일 뿐 본 발명이 이에 한정되는 것은 아니다.Hereinafter, preferred examples are presented to help the understanding of the present invention. However, the following examples are only a reference for explaining the present invention in detail, and the present invention is not limited thereto.
[실시예 1][Example 1]
보는 각도 또는 광원의 위치에 따라 광학적 특성이 변화되는 제1 입자를 포함하는 광경화용 코팅 조성물은 표 1에서와 같은 조성으로 제조하였다.A coating composition for photocuring including the first particles whose optical properties change depending on the viewing angle or the position of the light source was prepared with the composition shown in Table 1.
성분ingredient 함량(중량%)content (wt%)
아크릴레이트 단량체acrylate monomer 60~7060-70
2-메틸-4-메틸싸이오페닐-2-몰포린프로판2-methyl-4-methylthiophenyl-2-morpholinepropane 5~105-10
2,4-디에틸싸이옥산톤2,4-diethylthioxanthone 5~105-10
안료 분산용 고 분자량 공중 합체High Molecular Weight Copolymer for Pigment Dispersion 1~31-3
제1입자(자화성 광학 가변 플레이크)First particle (magnetizable optically variable flake) 7~207-20
상기 제1 입자로는 자성을 가지며 D90이 약 20㎛인 보라-진청색(purple to dark blue)의 자화성 광학 가변 플레이크를 사용하였다.As the first particles, magnetisable optically variable flakes of purple to dark blue having a magnetic property and having a D90 of about 20 μm were used.
표 1에 기재된 광경화용 코팅 조성물은 실크스크린 인쇄(300 메쉬)에 의해 기재에 도포하여 보안 인쇄층을 형성하였고, 특정 패턴의 자기장에 노출시켜 자화성 광학 가변 플레이크를 자기배향시켜 이미지로 이루어진 보안정보를 형성하였다. 자기 배향된 보안 인쇄물은 330mW/㎠ 조건의 UV 경화기를 통과시켜 완전히 경화시킨 후 광학적 특성을 평가하였다. 그 결과는 표 2와 같다.The coating composition for photocuring described in Table 1 was applied to the substrate by silkscreen printing (300 mesh) to form a security printing layer, and the magnetically oriented optically variable flakes were exposed to a magnetic field of a specific pattern to self-orient security information consisting of images. was formed. After the self-oriented security print was completely cured by passing it through a UV curing machine of 330 mW/cm 2 conditions, the optical properties were evaluated. The results are shown in Table 2.
No.No. Reflectance/ Bright zone [%]Reflectance/ Bright zone [%] Reflectance/ Dark zone [%]Reflectance/ Dark zone [%] CR Ratio (Bright/Dark)CR Ratio (Bright/Dark)
#1#One 29.9829.98 28.6828.68 1.051.05
배향된 자화성 광학 가변 플레이크를 포함하는 보안 인쇄물은 명암 식별이 용이하지 않았고, 보는 각도 또는 광원의 위치에 따라 움직이는 입체효과를 확인할 수 없었다. 인쇄물의 bright zone과 dark zone의 반사도 비율은 1.05를 나타내었다.In the security print containing the oriented magnetizable optically variable flakes, it was not easy to identify the light and dark, and it was not possible to confirm the stereoscopic effect of moving depending on the viewing angle or the position of the light source. The reflectivity ratio between the bright and dark zones of the print was 1.05.
[실시예 2][Example 2]
보는 각도 또는 광원의 위치에 따라 광학적 특성이 변화되는 제1 입자와 외부 자기장 인가 시 입자가 재배열되는 제2 입자를 포함하는 광경화용 코팅 조성물은 표 3과 같은 조성으로 제조하였다.A coating composition for photocuring including a first particle whose optical properties are changed according to a viewing angle or a position of a light source and a second particle whose particles are rearranged when an external magnetic field is applied was prepared in the composition shown in Table 3.
성분ingredient 함량 (중량%)content (wt%)
아크릴레이트 단량체acrylate monomer 50~6050 to 60
2-메틸-4-메틸싸이오페닐-2-몰포린프로판2-methyl-4-methylthiophenyl-2-morpholinepropane 5~105-10
2,4-디에틸싸이옥산톤2,4-diethylthioxanthone 5~105-10
안료 분산용 고 분자량 공중 합체High Molecular Weight Copolymer for Pigment Dispersion 1~31-3
제1입자(자화성 광학 가변 플레이크)First particle (magnetizable optically variable flake) 7~207-20
제2입자(자기색가변 광결정 소재)Second particle (self-color-tunable photonic crystal material) 7~207-20
상기 제1 입자로는 실시예 1과 같은 자화성 광학 가변 플레이크를 사용하였고, 제2 입자로는 자기장 인가시 가시광선파장(480~650㎚)을 반사하는 구형의 광결정 입자를 사용하였다.As the first particles, magnetisable optically variable flakes as in Example 1 were used, and as the second particles, spherical photonic crystal particles reflecting a visible light wavelength (480 to 650 nm) when a magnetic field was applied were used.
표 3에 기재된 광경화용 코팅 조성물은 실크스크린 인쇄(300 메쉬)에 의해 기재에 도포하여 보안 인쇄층을 형성하였고, 특정 패턴의 자기장에 노출시켜 자화성 광학 가변 플레이크를 자기 배향 시킴과 동시에 광결정 입자도 자기배열을 이루어 보안정보를 형성하였다. 자기 배향 된 보안인쇄물은 330mW/㎠ 조건의 UV 경화기를 통과시켜 완전히 경화시킨 후 광학적 특성을 평가하였다. 그 결과는 표 4와 같다.The coating composition for photocuring shown in Table 3 was applied to the substrate by silkscreen printing (300 mesh) to form a security printing layer, and exposed to a magnetic field of a specific pattern to self-orient the magnetizable optically variable flakes and also the photonic crystal particles Security information was formed by self-alignment. After the self-oriented security print was completely cured by passing it through a UV curing machine of 330 mW/cm 2 conditions, the optical properties were evaluated. The results are shown in Table 4.
No.No. Reflectance/ Bright zone [%]Reflectance/ Bright zone [%] Reflectance/ Dark zone [%]Reflectance/ Dark zone [%] CR Ratio (Bright/Dark)CR Ratio (Bright/Dark)
#2#2 18.7118.71 18.518.5 1.011.01
배향된 제1 입자와 제2 입자를 포함하는 보안인쇄물은 실시예1과 마찬가지로 명암 식별이 용이하지 못하였고, 보는 각도 또는 광원의 위치에 따라 움직이는 입체효과를 확인할 수 없었다. 인쇄물의 bright zone과 dark zone의 반사도 비율은 1.01로 비슷한 결과를 나타내었다. As in Example 1, the security print including the oriented first particles and the second particles was not easy to identify the light and dark, and it was not possible to confirm the three-dimensional effect of moving depending on the viewing angle or the position of the light source. The reflectivity ratio of the bright zone and dark zone of the print was 1.01, showing similar results.
[실시예 3][Example 3]
실시예 1과 실시예 2에서의 낮은 광학적 효과를 개선하기 위하여 표 5와 같은 조성의 광경화용 컬러잉크를 제조하여 기재에 인쇄 및 경화를 진행하였고, 이후 표 1 및 표 3에 따른 광경화용 코팅 조성물을 인쇄하여 광학적 특성을 평가하였다. 광경화용 컬러잉크층은 종이에 제1 입자와 제2 입자가 흡수되는 것을 방지하는 역할과 동시에 광흡수층 역할을 하여 제1 입자와 제2 입자에 의해 나타나는 특성을 향상시킬 것으로 기대 하였다.In order to improve the low optical effect in Examples 1 and 2, photo-curing color inks having the composition shown in Table 5 were prepared, and printing and curing were performed on the substrate, and then the photo-curing coating composition according to Tables 1 and 3 was printed to evaluate the optical properties. The color ink layer for photocuring was expected to improve the properties exhibited by the first and second particles by serving as a light absorbing layer as well as preventing the first and second particles from being absorbed by the paper.
성분ingredient 함량 (중량%)content (wt%)
아크릴레이트 단량체acrylate monomer 70~8070-80
2-메틸-4-메틸싸이오페닐-2-몰포린프로판2-Methyl-4-methylthiophenyl-2-morpholinepropane 5~105-10
2,4-디에틸싸이옥산톤2,4-diethylthioxanthone 5~105-10
안료 분산용 고 분자량 공중 합체High Molecular Weight Copolymer for Pigment Dispersion 1~31-3
안료 (Carbon Black)Pigment (Carbon Black) 7~207-20
표 5에 기재된 광경화용 코팅 조성물은 실크스크린 인쇄(420 메쉬)에 의해 기재에 도포하였고, 조성물은 330mW/㎠ 조건의 UV 경화기를 통과시켜 완전히 경화시켰다.The coating composition for photocuring described in Table 5 was applied to the substrate by silkscreen printing (420 mesh), and the composition was completely cured by passing it through a UV curing machine of 330mW/cm2 condition.
표 1 및 표 3에 따른 광경화용 코팅 조성물을 실크스크린 인쇄(300 메쉬)에 의해 기재에 도포 및 특정 패턴의 자기장에 노출시켜 자화성 광학 가변 자성 플레이크를 자기배향 시켰다. 이렇게 자기 배향된 코팅 조성물은 330mW/㎠ 조건의 UV 경화기를 통과시켜 완전히 경화시킨 후 광학적 특성을 평가하였다. 그 결과는 표 6과 같다.The photocurable coating composition according to Tables 1 and 3 was applied to the substrate by silkscreen printing (300 mesh) and exposed to a magnetic field of a specific pattern to self-orient the magnetizable optically variable magnetic flakes. The self-aligned coating composition was passed through a UV curing machine of 330 mW/cm 2 conditions to be completely cured, and then the optical properties were evaluated. The results are shown in Table 6.
No.No. Reflectance/ Bright zone [%]Reflectance/ Bright zone [%] Reflectance/ Dark zone [%]Reflectance/ Dark zone [%] CR Ratio (Bright/Dark)CR Ratio (Bright/Dark)
#3#3 11.4811.48 2.832.83 4.064.06
#4#4 8.828.82 3.183.18 2.772.77
컬러층 상단에 인쇄 및 경화된 표 1에 따른 자화성 광학 가변 플레이크를 포함하는 보안인쇄물은 실시예 1의 결과와 대비하여 명암 식별이 더 용이하였고, 보는 각도 또는 광원의 위치에 따라 움직이는 입체효과를 확인할 수 있었다. 인쇄물의 bright zone과 dark zone의 반사도 비율도 4.06을 나타낼 정도로 우수한 대조비를 나타내었다.The security print containing magnetizable optically variable flakes according to Table 1 printed and cured on top of the color layer was easier to identify the contrast compared to the result of Example 1, and the three-dimensional effect of moving depending on the viewing angle or the position of the light source was obtained. could check The reflectivity ratio of the bright zone and the dark zone of the printed material also showed an excellent contrast ratio of 4.06.
또한, 제1 입자와 제2 입자를 포함하는 보안 인쇄물은 실시예 2의 결과 대비하여 명암 식별이 더 용이하였고, 보는 각도 또는 광원의 위치에 따라 움직이는 입체효과를 확인할 수 있었다. 인쇄물의 bright zone과 dark zone의 반사도 비율도 2.77의 대조비를 나타내었다.In addition, the security print including the first particle and the second particle was easier to identify the contrast compared to the result of Example 2, and it was possible to confirm the three-dimensional effect moving according to the viewing angle or the position of the light source. The reflectivity ratio of the bright zone and the dark zone of the print also showed a contrast ratio of 2.77.
이러한 결과는 도 4에 도시된 바와 같은데, 실시예 2에 따른 보안 인쇄물의 색 대비 효과(a)에 비해 실시예 3의 색 대비 효과(b)가 더욱 뚜렷해 지는 결과로부터도 확인할 수 있다.Such a result is as shown in FIG. 4 , and it can also be confirmed from the result that the color contrast effect (b) of Example 3 is more pronounced compared to the color contrast effect (a) of the security print according to Example 2.
[실시예 4][Example 4]
인쇄 층의 광학특성을 개선시키기 위해 표 5의 광경화용 컬러잉크의 안료 종류를 변경하여 광흡수층의 특성에 변화를 주었다. In order to improve the optical properties of the printed layer, the pigment types of the photocurable color ink in Table 5 were changed to change the properties of the light absorption layer.
Black과 Blue 안료가 각각 분산되어 있는 광경화용 컬러잉크들을 실크스크린 인쇄(420 메쉬)에 의해 기재에 도포하였고, 조성물은 330mW/㎠ 조건의 UV 경화기를 통과시켜 완전히 경화시켰다. Color inks for photocuring in which black and blue pigments are dispersed, respectively, were applied to the substrate by silkscreen printing (420 mesh), and the composition was completely cured by passing it through a UV curing machine under the condition of 330mW/cm2.
표 3에 따른 광경화용 코팅 조성물을 실크스크린 인쇄(300 메쉬)에 의해 기재에 도포 및 특정 패턴의 자기장에 노출시켜 자화성 광학 가변 자성 플레이크를 자기 배향 시켰다. 이렇게 자기 배향된 코팅 조성물은 330mW/㎠ 조건의 UV 경화기를 통과시켜 완전히 경화시킨후 광학적 특성을 평가하였다. 그 결과는 표 4과 같다.The photocurable coating composition according to Table 3 was applied to the substrate by silkscreen printing (300 mesh) and exposed to a magnetic field of a specific pattern to self-align the magnetizable optically variable magnetic flakes. The self-aligned coating composition was passed through a UV curing machine of 330 mW/cm 2 conditions to be completely cured, and then the optical properties were evaluated. The results are shown in Table 4.
No.No. Reflectacne/ Bright zone [%]Reflectacne/ Bright zone [%] Reflectacne/ Dark zone [%]Reflectacne/ Dark zone [%] CR Ratio (Bright/Dark)CR Ratio (Bright/Dark)
#5#5 8.828.82 3.183.18 2.772.77
#6#6 7.347.34 2.872.87 2.562.56
표 7의 결과로부터 광흡수층의 색상이 변화됨으로써 색가변 특성 및 광결정 특성이 향상됨을 확인할 수 있었다.From the results of Table 7, it was confirmed that the color tunability and photonic crystal properties were improved by changing the color of the light absorption layer.
[실시예 5][Example 5]
보는 각도 또는 광원의 위치에 따라 광학적 특성이 변화되는 제1 입자와 외부 자기장 인가 시 입자가 재배열되는 제2 입자를 포함하는 광경화용 코팅 조성물은 표 8과 같은 조성으로 제조하였다.A coating composition for photocuring including a first particle whose optical properties are changed according to a viewing angle or a position of a light source and a second particle whose particles are rearranged when an external magnetic field is applied was prepared in the composition shown in Table 8.
성분ingredient 함량 (중량%)content (wt%)
아크릴레이트 단량체acrylate monomer 50~6050 to 60
2-메틸-4-메틸싸이오페닐-2-몰포린프로판2-Methyl-4-methylthiophenyl-2-morpholinepropane 5~105-10
2,4-디에틸싸이옥산톤2,4-diethylthioxanthone 5~105-10
안료 분산용 고 분자량 공중 합체High Molecular Weight Copolymer for Pigment Dispersion 1~31-3
제1입자(비자화성 광학 가변 플레이크)*표10 First particle (non-magnetizable optically variable flake)* Table 10 7~207-20
제2입자(자기색가변 광결정 소재)Second particle (self-color-tunable photonic crystal material) 7~207-20
상기 비자화성 광학 가변 플레이크는 아래의 표 9에서와 같이 D90이 약 50㎛의 다양한 광학 가변 플레이크를 사용하였고, 자기색가변 광결정 소재는 자기장 인가시 가시광선파장(480~650nm)을 반사하는 구형의 광결정 입자를 사용하였다.The non-magnetic optically variable flakes used various optically variable flakes having a D90 of about 50 μm as shown in Table 9 below, and the magnetically tunable photonic crystal material has a spherical shape that reflects visible light wavelengths (480 to 650 nm) when a magnetic field is applied. Photonic crystal particles were used.
기재write 사이즈 (μm / D10~D90)Size (μm / D10~D90) 사이즈 (μm / D50)Size (μm / D50)
Mica Flakes(#7)Mica Flakes (#7) 6~456-45 18~2318-23
Glass Flakes(#8)Glass Flakes(#8) 6~416-41 16~2016-20
Mirror Flakes(#9)Mirror Flakes(#9) 9~1509~150 45~7045-70
표 9의 광흡수층을 인쇄 및 경화한 후 표 8에 따른 광경화용 코팅 조성물은 실크스크린 인쇄(300 메쉬)에 의해 기재에 도포하였고, 특정 패턴의 자기장에 노출시켜 제1 입자와 제2 입자를 자기 배향 시켰다. 이렇게 자기 배향된 코팅 조성물은 330mW/㎠ 조건의 UV 경화기를 통과시켜 완전히 경화시킨 후 광학적 특성을 평가하였다. 그 결과는 표 10과 같다.After the light absorption layer of Table 9 was printed and cured, the coating composition for photocuring according to Table 8 was applied to the substrate by silk screen printing (300 mesh), and the first particles and the second particles were magnetically exposed by exposure to a magnetic field of a specific pattern. oriented The self-aligned coating composition was passed through a UV curing machine of 330 mW/cm 2 conditions to be completely cured, and then the optical properties were evaluated. The results are shown in Table 10.
No.No. Reflectacne/ Bright zone [%]Reflectacne/ Bright zone [%] Reflectacne/ Dark zone [%]Reflectacne/ Dark zone [%] CR Ratio (Bright/Dark)CR Ratio (Bright/Dark)
#7#7 19.6819.68 14.7314.73 1.341.34
#8#8 15.9815.98 11.5711.57 1.381.38
#9#9 23.7223.72 19.7619.76 1.201.20
표 10에 따른 비자화성 광학 가변 플레이크를 포함하는 보안 인쇄물은 명암 식별이 용이하였고, 보는 각도 또는 광원의 위치에 따라 움직이는 입체효과를 확인할 수 있었다. 인쇄물의 bright zone과 dark zone의 반사도 비율은 약 1.3을 나타내었다. 비록 자화성 광학 가변 플레이크를 포함하는 보안인쇄물 대비 CR ratio는 낮지만 충분히 입체효과 등의 광학특성이 개시됨을 확인할 수 있었다. 또한, 본 실시예에서 비자화성 광학 가변 플레이크의 사이즈는 D90 45, 150㎛을 사용하였으나 바람직하게는 25㎛ 이하의 플레이크를 사용하는 것이 제2 입자에 의한 배향이 원활하게 이루어지고 이로 인한 광학적 효과를 표현함에 효과적이다. 이는 도 5, 도 8에 도시된 바와 같이 보안 인쇄물은 각도에 따라 패턴의 가변 효과가 뚜렷이 확인되는 것으로부터도 확인할 수 있다.The security print containing the non-magnetizable optically variable flakes according to Table 10 was easy to identify the light and dark, and it was possible to confirm the three-dimensional effect of moving according to the viewing angle or the position of the light source. The reflectivity ratio between the bright and dark zones of the print was about 1.3. Although the CR ratio was low compared to the security print containing magnetizable optically variable flakes, it was confirmed that the optical properties such as three-dimensional effect were sufficiently disclosed. In addition, in this embodiment, the sizes of the non-magnetizable optically variable flakes are D90 45 and 150 μm, but preferably, the use of flakes of 25 μm or less allows for smooth alignment by the second particles, thereby improving the optical effect. effective for expression. This can also be confirmed from the fact that the variable effect of the pattern according to the angle of the security print is clearly identified as shown in FIGS. 5 and 8 .
이 경우, 플레이크가 배열되는 각도가 위치에 따라 달라질 수 있는데, 도 6에서와 같이 하나의 층 내에 수직 또는 기울어진 입자(a) 및 수평으로 배열되는 입자(b)를 달리하여 구성할 수 있으므로, 이러한 보는 각도에 따른 광학 효과가 구현될 수 있다. 이러한 플레이크의 배열은 도 7에서와 같이 인쇄층의 양단에서 자기장을 인가하는 방향에 따라 다양한 형태로 배열을 변화시킬 수 있다.In this case, the angle at which the flakes are arranged may vary depending on the location. An optical effect according to such a viewing angle may be implemented. The arrangement of these flakes may be changed in various forms according to the direction in which the magnetic field is applied at both ends of the printed layer as shown in FIG. 7 .
[실시예 6][Example 6]
보는 각도 또는 광원의 위치에 따라 광학적 특성이 변화되는 제1 입자와 외부 자기장 인가시 입자가 재배열되는 제2 입자를 포함하는 광경화용 코팅 조성물은 표 11에 따른 조성으로 제조하였다.A coating composition for photocuring comprising a first particle whose optical properties are changed according to a viewing angle or a position of a light source and a second particle whose particles are rearranged when an external magnetic field is applied was prepared according to Table 11.
성분ingredient 함량 (중량%)content (wt%)
아크릴레이트 단량체acrylate monomer 50~6050 to 60
2-메틸-4-메틸싸이오페닐-2-몰포린프로판2-Methyl-4-methylthiophenyl-2-morpholinepropane 5~105-10
2,4-디에틸싸이옥산톤2,4-diethylthioxanthone 5~105-10
안료 분산용 고 분자량 공중 합체High Molecular Weight Copolymer for Pigment Dispersion 1~31-3
제1입자(비자화성 광학 가변 플레이크)First particle (non-magnetizable optically variable flake) 7~207-20
제2입자(자화성 나노입자)Second particle (magnetizable nanoparticles) 7~207-20
상기 비자화성 광학 가변 플레이크는 D90 약 50㎛의 광학 가변 플레이크를 사용하였고, 자화성 나노입자는 자기장 인가시 입자의 배열과 회전이 이루어 지는 특성을 갖고 있는 입자를 사용하였다.Optically variable flakes having a D90 of about 50 μm were used as the non-magnetizable optically variable flakes, and as the magnetizable nanoparticles, particles having a characteristic of particle arrangement and rotation when a magnetic field was applied were used.
표 5에 따른 광흡수층을 인쇄 및 경화한 후 표 11에 따른 광경화용 코팅 조성물은 실크스크린 인쇄(300 메쉬)에 의해 기재에 도포하였고, 특정 패턴의 자기장에 노출시켜 자화성 광학 가변 자성 플레이크를 자기 배향 시켰다. 이렇게 자기배향된 코팅 조성물은 330mW/㎠의 조건의 UV 경화기를 통과시켜 완전히 경화시킨후 광학적 특성을 평가하였다. 그 결과는 표 12와 같다.After the light absorption layer according to Table 5 was printed and cured, the coating composition for photocuring according to Table 11 was applied to the substrate by silkscreen printing (300 mesh), and the magnetizable optically variable magnetic flake was magnetically exposed to a magnetic field of a specific pattern. oriented The self-oriented coating composition was passed through a UV curing machine under the condition of 330 mW/cm 2 and completely cured, and then the optical properties were evaluated. The results are shown in Table 12.
No.No. Reflectacne/ Bright zone [%]Reflectacne/ Bright zone [%] Reflectacne/ Dark zone [%]Reflectacne/ Dark zone [%] CR Ratio (Bright/Dark)CR Ratio (Bright/Dark)
#10#10 11.1911.19 8.968.96 1.251.25
표 12의 결과를 살펴보면, 비자화성 광학 가변 플레이크를 포함하는 보안 인쇄물은 명암 식별이 용이하였고, 보는 각도 또는 광원의 위치에 따라 움직이는 입체효과를 확인할 수 있었다. 인쇄물의 bright zone과 dark zone의 반사도 비율은 약 1.25를 나타내었다.Looking at the results in Table 12, the security print including the non-magnetic optical variable flakes was easy to identify the light and dark, and it was possible to confirm the three-dimensional effect of moving depending on the viewing angle or the position of the light source. The reflectivity ratio of the bright zone and the dark zone of the print was about 1.25.
상기 실시예 1 내지 6은 자기장 인가 시 제1 입자로 인한 광학특성과 제2 입자의 배열 또는 이동으로 인한 복합적 광학적 효과에 대한 결과를 나타내었다. 본 발명의 목적과 같이 제2 입자의 이동과 배열, 회전에 의하여 제1 입자의 배향이 유도되고 이로 인해 광학적 특성이 확보될 수 있음을 확인하였다. 또한, 제2 입자로 자기 광결정 입자를 사용한 경우 제1 입자의 광학적 특성과 제2 입자의 광학적 특성의 조합으로 새로운 광학적 특성들이 나타날 수 있음을 확인하여 기존의 보안인쇄용 코팅 조성물에 비해 보안성이 더 높고 광학적 특성이 개선된 보안인쇄용 코팅 조성물임을 확인하였다. Examples 1 to 6 show the results for the optical properties due to the first particle and the complex optical effect due to the arrangement or movement of the second particle when the magnetic field is applied. As an object of the present invention, it was confirmed that the orientation of the first particles is induced by the movement, arrangement, and rotation of the second particles, thereby securing optical properties. In addition, when magnetic photonic crystal particles are used as the second particles, it is confirmed that new optical properties can appear by combining the optical properties of the first particles and the optical properties of the second particles. It was confirmed that it was a coating composition for security printing with high optical properties and improved optical properties.
또한, 실시예 7 내지 8을 통해 자기장 인가시 제2 입자의 이동에 의해 제1 입자의 색상, 패턴 또는 입체효과가 가역적으로 변화하는 위조 및 변조 방지 장치가 효과적으로 제조됨을 확인할 수 있었다.In addition, through Examples 7 to 8, it was confirmed that counterfeiting and tampering prevention devices in which the color, pattern, or steric effect of the first particles are reversibly changed by the movement of the second particles when a magnetic field is applied can be effectively manufactured.
[실시예 7][Example 7]
보는 각도 또는 광원의 위치에 따라 광학적 특성이 변화되는 제1 입자를 포함하는 광학가변 잉크는 표 13과 같은 조성으로 제조 하였다.An optically variable ink including first particles whose optical properties change depending on the viewing angle or the position of the light source was prepared with the composition shown in Table 13.
성분ingredient 함량 (중량%)content (wt%)
아이소 파라핀 오일isoparaffin oil 85~9585-95
안료 분산용 고 분자량 공중 합체High Molecular Weight Copolymer for Pigment Dispersion 1~31-3
제1입자(자화성 광학 가변 플레이크)First particle (magnetizable optically variable flake) 5~105-10
상기 제1 입자로는 D90이 약 20㎛의 검정-은색(Black to Silver) 자화성 광학가변 플레이크를 사용하였다. 표 13에 기재된 조성으로 잉크를 제조하여 캡슐화 공정을 통해 자화성 광학가변 마이크로 캡슐을 제조하였으며 그 조성은 표 14와 같다. As the first particles, black to silver magnetisable optically variable flakes having a D90 of about 20 μm were used. By preparing the ink with the composition shown in Table 13, magnetizable optically variable microcapsules were prepared through the encapsulation process, and the composition is shown in Table 14.
성분ingredient 함량 (중량%)content (wt%)
젤라틴gelatin 10~1510-15
아라비아 검arabic gum 10~1510-15
제 1입자를 포함하는 광학 가변 잉크Optically variable ink comprising first particles 70~8070-80
표 14에 따른 조성으로 제조한 캡슐을 이용하여 필름을 제조, 그 광학적 특성을 평가 하였으며, 결과는 표 15와 같다.A film was manufactured using the capsule prepared with the composition according to Table 14, and its optical properties were evaluated, and the results are shown in Table 15.
No.No. Reflectacne/ Bright zone [%]Reflectacne/ Bright zone [%] Reflectacne/ Dark zone [%]Reflectacne/ Dark zone [%] CR Ratio (Bright/Dark)CR Ratio (Bright/Dark)
#1#One 7.847.84 1.561.56 5.035.03
표 15의 결과로부터 자기장 인가시 Bright zone과 Dark zone이 극명히 대비 되며 대조비 5:1 이상의 Glittering effect 필름을 제조할 수 있었다.From the results in Table 15, when a magnetic field was applied, the bright zone and the dark zone were clearly contrasted, and a glittering effect film with a contrast ratio of 5:1 or higher could be manufactured.
또한, 상기와 같은 필름은 도 10에 도시된 바와 같이 마이크로 입자를 구성하여 인가되는 자기장에 의해 색 가변 효과를 나타낼 수 있다. 또한, 상기 마이크로 입자를 포함하는 필름은 자화성 가변 플레이크를 포함하는 마이크로 캡슐이 인쇄될 경우 도 11에서와 같이 자기장의 인가에 의해 자기 배향이 발생하여 광학적 효과를 구현할 수 있게 된다.In addition, as shown in FIG. 10 , the film may exhibit a color-changing effect by the applied magnetic field by forming micro-particles. In addition, when the microcapsules including the magnetisable variable flakes are printed on the film including the microparticles, magnetic orientation occurs by the application of a magnetic field as shown in FIG. 11, thereby realizing an optical effect.
[실시예 8][Example 8]
보는 각도 또는 광원의 위치에 따라 광학적 특성이 변화되는 제1 입자와 외부 자기장 인가시 입자가 재배열되는 제2 입자를 포함하는 광학 가변 잉크는 표 16에서와 같은 조성으로 제조하였다.An optically variable ink including a first particle whose optical properties are changed according to a viewing angle or a position of a light source and a second particle whose particles are rearranged when an external magnetic field is applied was prepared with the composition shown in Table 16.
성분ingredient 함량 (중량%)content (wt%)
아이소 파라핀 오일isoparaffin oil 60~8060-80
소르비탄 트라이 올레이트Sorbitan Trioleate 0.1~1.00.1~1.0
안료 분산용 고 분자량 공중 합체High Molecular Weight Copolymer for Pigment Dispersion 0.5~2.00.5~2.0
제1입자(자화성 광학 가변 플레이크)First particle (magnetizable optically variable flake) 1~101 to 10
제2입자(자기색가변 광결정 소재)Second particle (self-color-tunable photonic crystal material) 10~2010-20
상기 제1 입자로는 실시예 1과 같은 자화성 광학 가변 플레이크를 사용하였고, 제2 입자로는 자기장 인가시 가시광선파장(480~650㎚)을 반사하는 구형의 광결정 입자를 사용하였다.As the first particles, magnetisable optically variable flakes as in Example 1 were used, and as the second particles, spherical photonic crystal particles reflecting a visible light wavelength (480 to 650 nm) when a magnetic field was applied were used.
표 16에 기재된 조성으로 잉크를 제조하여 캡슐화 공정을 통해 자화성 광학가변 마이크로 캡슐을 제조하였으며 그 조성은 표 17과 같다.By preparing the ink with the composition shown in Table 16, magnetizable optically variable microcapsules were prepared through the encapsulation process, and the composition is shown in Table 17.
성분ingredient 함량 (중량%)content (wt%)
젤라틴gelatin 10~1510-15
아라비아 검arabic gum 10~1510-15
제 1입자와 2입자를 포함하는 광학 가변 잉크Optically variable ink comprising first and second particles 70~8070-80
표 17의 조성에 따라 제조한 캡슐을 이용하여 필름을 제조하였으며, 그 광학적 특성을 평가하였다. 그 결과는 표 18과 같다.A film was prepared using the capsule prepared according to the composition of Table 17, and its optical properties were evaluated. The results are shown in Table 18.
No.No. Reflectacne/ Bright zone [%]Reflectacne/ Bright zone [%] Reflectacne/ Dark zone [%]Reflectacne/ Dark zone [%] CR Ratio (Bright/Dark)CR Ratio (Bright/Dark)
#1#One 11.4311.43 6.196.19 1.851.85
표 18의 결과로부터 자성 구동을 통해 색상이 변화되며 Glittering effect 또한 동시에 발현되는 필름을 제조할 수 있었다.From the results in Table 18, it was possible to prepare a film in which the color was changed through magnetic actuation and the glittering effect was also expressed at the same time.
[실시예 9][Example 9]
보는 각도 또는 광원의 위치에 따라 광학적 특성이 변화되는 제1 입자와 외부 자기장 인가시 입자가 영동하는 제2 입자를 포함하는 광학 가변 잉크는 표 19와 같은 조성으로 제조하였다.An optically variable ink including first particles whose optical properties change according to a viewing angle or a position of a light source and second particles in which particles migrate when an external magnetic field is applied was prepared with the composition shown in Table 19.
성분ingredient 조성 (중량%)Composition (wt%)
아이소 파라핀 오일isoparaffin oil 75~8575-85
안료 분산용 고 분자량 공중 합체High Molecular Weight Copolymer for Pigment Dispersion 1~31-3
제1입자(비자화성 광학 가변 플레이크)First particle (non-magnetizable optically variable flake) 10~2010-20
제2입자(자성 입자)Second particle (magnetic particle) 1~101 to 10
상기 제 1입자로는 비자화성 광학 가변 플레이크는 D90이 약 40㎛인 광학 가변 플레이크를 사용하였고, 상기 제 2입자로는 D90이 약 200nm인 자성 입자를 사용하였다.As the first particles, optically variable flakes having a D90 of about 40 μm were used as the non-magnetic optically variable flakes, and magnetic particles having a D90 of about 200 nm were used as the second particles.
표 19에 기재된 조성으로 잉크를 제조하여 캡슐화 공정을 통해 자화성 광학가변 마이크로 캡슐을 제조하였으며 그 조성은 표 20과 같다. By preparing ink with the composition shown in Table 19, magnetizable optically variable microcapsules were prepared through an encapsulation process, and the composition is shown in Table 20.
성분ingredient 함량 (중량%)content (wt%)
젤라틴gelatin 10~1510-15
아라비아 검arabic gum 10~1510-15
제 1입자와 2입자를 포함하는 광학 가변 잉크Optically variable ink comprising first and second particles 70~8070-80
표 20에 따라 제조한 캡슐을 이용하여 필름은 제조하고 그 광학적 특성을 평가하였다. 그 결과는 표 21과 같다.Films were prepared using the capsules prepared according to Table 20 and their optical properties were evaluated. The results are shown in Table 21.
No.No. Reflectacne/ Bright zone [%]Reflectacne/ Bright zone [%] Reflectacne/ Dark zone [%]Reflectacne/ Dark zone [%] CR Ratio (Bright/Dark)CR Ratio (Bright/Dark)
#1#One 8.968.96 4.414.41 2.032.03
표 21의 결과로부터 자성 구동을 통해 색상이 변화되며 Glittering effect 또한 동시에 발현되는 필름을 제조할 수 있었다. 또한, 비자화성 가변 플레이크와 광결정 입자를 포함하는 마이크로 캡슐이 인쇄될 경우 도 12에서와 같이 자기장의 인가에 의해 자기 배향이 발생하기 때문에 서로 다른 광학적 효과를 구현할 수 있게 된다.From the results in Table 21, it was possible to prepare a film in which the color was changed through magnetic actuation and the glittering effect was also expressed at the same time. In addition, when microcapsules including non-magnetic variable flakes and photonic crystal particles are printed, different optical effects can be realized because magnetic orientation occurs by the application of a magnetic field as shown in FIG. 12 .
상술한 바와 같이 바람직한 실시예를 들어 본 발명을 설명하였으나, 상기 실시예에 한정되지 아니하며 본 발명의 정신을 벗어나지 않는 범위 내에서 통상의 기술자에 의해 다양한 변형과 변경이 가능하며, 그러한 변형예 및 변경예는 본 발명과 첨부된 특허청구범위의 범위 내에 속하는 것으로 보아야 한다.Although the present invention has been described with reference to the preferred embodiment as described above, it is not limited to the above embodiment and various modifications and changes are possible by those skilled in the art within the scope of not departing from the spirit of the present invention, and such modifications and changes Examples are to be considered as falling within the scope of the present invention and the appended claims.

Claims (16)

  1. 보는 각도 또는 광원의 위치에 따라 반사광의 색상(Color), 반사광의 스펙트럼(Spectrum), 반사광의 세기 또는 투과도 중 어느 하나 또는 그 이상의 광학적 특성이 변화되는 제1 입자 및 자기장의 인가에 의해 이동하여 재배열(reconfiguration)되는 제2 입자를 액상 매질 내에 분산시켜 분산액을 제조하는 분산 단계;According to the viewing angle or the position of the light source, any one or more optical properties of the color of the reflected light, the spectrum of the reflected light, the intensity of the reflected light, or the transmittance are moved by the application of the first particle and the magnetic field A dispersing step of dispersing the second particles to be reconfigured in a liquid medium to prepare a dispersion;
    상기 분산액을 광투과되는 매질을 사용하여 캡슐화 시키는 캡슐 제조 단계;Capsule manufacturing step of encapsulating the dispersion using a light-transmitting medium;
    상기 캡슐을 기재에 인쇄하여 보안소자 층을 형성하는 단계;를 포함하며,Including; printing the capsule on the substrate to form a security element layer;
    외부 자기장의 인가에 의해 제2 입자가 이동하며, 상기 제2 입자의 이동에 의해 상기 제1 입자가 이동되어 상기 제1 입자에 의한 색상, 패턴 또는 입체효과가 가역적으로 변하여 제1 입자 및 제2 입자의 초기 배열(configuration)에서 다른 배열로 재배열되는 것을 특징으로 하는 위조 및 변조 방지 장치의 제조방법. The second particle is moved by the application of an external magnetic field, and the first particle is moved by the movement of the second particle, so that the color, pattern, or steric effect of the first particle is reversibly changed to the first particle and the second particle. A method of manufacturing an anti-counterfeiting and tampering device, characterized in that the particles are rearranged from an initial configuration to another arrangement.
  2. 청구항 1에 있어서,The method according to claim 1,
    상기 제1 입자는 Fe, Ni, Co 중 적어도 어느 하나의 원소를 포함하는 강자성체로 구성되며, 상기 강자성체는 착자를 통해 자화되는 것을 특징으로 하는 위조 및 변조 방지 장치의 제조방법.The first particle is composed of a ferromagnetic material containing at least one element of Fe, Ni, Co, and the ferromagnetic material is a method of manufacturing an anti-counterfeiting and tampering prevention device, characterized in that the magnetization through magnetization.
  3. 청구항 1에 있어서,The method according to claim 1,
    상기 제2 입자는 외부 자기장의 인가에 의해 광결정 현상을 발현하도록 규칙적으로 배열되는 것을 특징으로 하는 위조 및 변조 방지 장치의 제조방법.The second particle is a method of manufacturing an anti-counterfeiting and tampering device, characterized in that it is regularly arranged to develop a photonic crystal phenomenon by the application of an external magnetic field.
  4. 청구항 1에 있어서,The method according to claim 1,
    상기 제1 입자는 판상(flake) 형태 입자, 적어도 일면이 각도에 따라 색상이나 반사광이 변화되는 입자, 적어도 일면이 거울(Mirror) 특성을 나타내는 입자, 적어도 일면이 금속 광택 특성을 나타내는 입자, 양면의 색상이 서로 다른 입자 중 어느 하나 또는 그 이상의 입자인 것을 특징으로 하는 위조 및 변조 방지 장치의 제조방법.The first particle is a flake-shaped particle, a particle whose color or reflected light changes depending on an angle on at least one side, a particle whose at least one side exhibits a mirror property, a particle whose at least one side exhibits a metallic luster property, both sides of A method of manufacturing an anti-counterfeiting and tampering device, characterized in that the particles are any one or more particles of different colors.
  5. 청구항 1에 있어서,The method according to claim 1,
    상기 제1 입자로 적어도 하나의 자성체를 포함한 물질을 사용하여, 외부 자기장의 인가에 의해 상기 제2 입자 및 상기 제1 입자가 복합적으로 이동하여 제1 입자에 의한 광학 특성 및 제2 입자에 의한 광학 특성이 함께 발현하는 것을 특징으로 하는 위조 및 변조 방지 장치의 제조방법. Using a material including at least one magnetic material as the first particle, the second particle and the first particle move complexly by the application of an external magnetic field, so that the optical property of the first particle and the optical property of the second particle A method of manufacturing an anti-counterfeiting and tampering device, characterized in that the characteristics are expressed together.
  6. 청구항 1에 있어서,The method according to claim 1,
    상기 제2 입자는 자성체이며, The second particle is a magnetic material,
    상기 제2 입자는 강자성체 입자, 초상자성체 입자, 구형(Sphere) 형태 입자, 판상(flake) 형태 입자, 외부 자기장에 의해 자기영동(magnetophoretic) 구동을 하는 입자, 외부 자기장에 의해 자기유동(magnetorheological) 구동을 하는 입자 중 어느 하나 또는 그 이상인 것을 특징으로 하는 위조 및 변조 방지 장치의 제조방법.The second particle is a ferromagnetic particle, a superparamagnetic particle, a sphere-shaped particle, a flake-shaped particle, a particle that is magnetophoretic driven by an external magnetic field, and a magnetorheological drive by an external magnetic field A method of manufacturing an anti-counterfeiting and tampering device, characterized in that any one or more of the particles.
  7. 청구항 1에 있어서,The method according to claim 1,
    상기 제2 입자는 Fe, Ni, Co 중 적어도 하나의 원소를 포함한 것을 특징으로 하는 위조 및 변조 방지 장치의 제조방법. The second particle is a method of manufacturing an anti-counterfeiting and tampering device, characterized in that it contains at least one of Fe, Ni, and Co.
  8. 청구항 1에 있어서,The method according to claim 1,
    상기 기재 및 상기 보안소자 층 사이에 광흡수층이 추가적으로 형성되는 것을 특징으로 하는 위조 및 변조 방지 장치의 제조방법.A method of manufacturing an anti-counterfeiting and tampering device, characterized in that a light absorption layer is additionally formed between the substrate and the security element layer.
  9. 청구항 1에 있어서,The method according to claim 1,
    상기 제2 입자는 자기장 인가시 하부로 편재되어 광흡수층을 형성하는 것을 특징으로 하는 위조 및 변조 방지 장치의 제조방법.The method of manufacturing a counterfeit and tamper prevention device, characterized in that the second particles are localized to a lower portion when a magnetic field is applied to form a light absorption layer.
  10. 청구항 1에 있어서,The method according to claim 1,
    상기 보안소자 층에 형성된 보안정보는 패턴 또는 이미지이며, The security information formed on the security element layer is a pattern or image,
    상기 패턴 또는 이미지는 1차원 또는 2차원의 바코드, QR 코드, 숫자, 문자 중 어느 하나 또는 그 이상인 것을 특징으로 하는 위조 및 변조 방지 장치의 제조방법.The pattern or image is a one-dimensional or two-dimensional barcode, QR code, number, and a method of manufacturing an anti-counterfeiting device, characterized in that any one or more of characters.
  11. 청구항 1에 있어서,The method according to claim 1,
    상기 보안소자 층은 OVP(optically variable pigment), 펄(pearl), 발광 안료, 축광 안료, 콜레스테릭 액정 안료, 자외선 반응 물질, 적외선 반응 물질 중 어느 하나 또는 그 이상을 포함하는 것을 특징으로 하는 위조 및 변조 방지 장치의 제조방법.The security element layer is a counterfeit, characterized in that it includes any one or more of an optically variable pigment (OVP), a pearl, a luminescent pigment, a phosphorescent pigment, a cholesteric liquid crystal pigment, an ultraviolet reactive material, and an infrared reactive material and a method for manufacturing an anti-tampering device.
  12. 청구항 1에 있어서,The method according to claim 1,
    상기 제1 입자 및 제2 입자의 초기 배열에서 다른 배열로 재배열되는 것은 상기 제1 입자 및 제2 입자를 초기 배열에서 특정한 방향으로 재배열하는 것을 특징으로 하는 위조 및 변조 방지 장치의 제조방법.The method for manufacturing an anti-counterfeiting and tampering device, characterized in that the rearrangement of the first particles and the second particles from the initial arrangement to another arrangement rearranges the first particles and the second particles in a specific direction from the initial arrangement.
  13. 청구항 1에 있어서,The method according to claim 1,
    상기 보안소자 층은 외부에서 가해지는 압력 또는 구부림(Bending) 또는 늘림(Stretching)에 의해 굴곡, 수축 또는 팽창하는 구조적 변화에 의하여 상기 제1 입자에 의한 색상, 패턴 또는 입체효과가 변경되어 나타나는 것을 특징으로 하는 위조 및 변조 방지 장치의 제조방법.The security element layer is characterized in that the color, pattern or three-dimensional effect of the first particle is changed due to a structural change in which the security element layer bends, contracts, or expands due to external pressure or bending or stretching. A method for manufacturing an anti-counterfeiting and tampering device.
  14. 청구항 1에 있어서,The method according to claim 1,
    상기 보안소자 층의 상부 또는 하부에, 보는 각도 또는 광원의 위치에 따라 반사광 색상, 스펙트럼, 세기 중 적어도 하나의 광특성이 변화되는 가변층이 추가적으로 형성되는 것을 특징으로 하는 위조 및 변조 방지 장치의 제조방법.Manufacturing of an anti-counterfeiting and tampering device, characterized in that a variable layer in which at least one optical characteristic of a reflected light color, spectrum, and intensity is changed according to a viewing angle or a position of a light source is additionally formed on the upper or lower portion of the security element layer Way.
  15. 청구항 1에 있어서,The method according to claim 1,
    상기 위조 및 변조 방지 장치는 보는 각도 또는 외부에서 조사되는 광원의 위치에 따라 광학 특성이 변하는 시변각 광학 효과 및 외부에서 인가되는 자기장에 따라 광학 특성이 변하는 광결정 광학 효과를 포함하는 것을 특징으로 하는 위조 및 변조 방지 장치의 제조방법.The counterfeit and tamper prevention device includes a time-varying optical effect in which optical properties change depending on a viewing angle or a position of a light source irradiated from the outside, and a photonic crystal optical effect in which optical properties change according to an externally applied magnetic field. and a method for manufacturing a tamper-resistant device.
  16. 청구항 1에 따른 위조 및 변조 방지 장치의 제조방법에 따라 제조되는 것을 특징으로 하는 위조 및 변조 방지 장치.An anti-counterfeiting and tampering device, characterized in that it is manufactured according to the manufacturing method of the anti-counterfeiting and tampering device according to claim 1.
PCT/KR2020/017121 2020-11-27 2020-11-27 Method for manufacturing apparatus for preventing forging and falsification WO2022114295A1 (en)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090066076A1 (en) * 2002-04-19 2009-03-12 Giesecke & Devrient Gmbh Security document
CN101903183A (en) * 2007-12-11 2010-12-01 德国捷德有限公司 Optically variable security element
KR101170585B1 (en) * 2004-12-09 2012-08-01 시크파 홀딩 에스에이 Security element having a viewing-angle dependent aspect, method of producing the security element and items comprising the security element
KR20150074647A (en) * 2013-12-24 2015-07-02 한국조폐공사 Security 2-dimensional barcode and the fabrication method
KR20170062372A (en) * 2015-11-27 2017-06-07 주식회사 나노브릭 Display Device for Certifying Genuine and Method for Using Thereof
KR102187266B1 (en) * 2019-09-19 2020-12-04 주식회사 나노브릭 Manufacturing method of anti-counterfeit apparatus

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090066076A1 (en) * 2002-04-19 2009-03-12 Giesecke & Devrient Gmbh Security document
KR101170585B1 (en) * 2004-12-09 2012-08-01 시크파 홀딩 에스에이 Security element having a viewing-angle dependent aspect, method of producing the security element and items comprising the security element
CN101903183A (en) * 2007-12-11 2010-12-01 德国捷德有限公司 Optically variable security element
KR20150074647A (en) * 2013-12-24 2015-07-02 한국조폐공사 Security 2-dimensional barcode and the fabrication method
KR20170062372A (en) * 2015-11-27 2017-06-07 주식회사 나노브릭 Display Device for Certifying Genuine and Method for Using Thereof
KR102187266B1 (en) * 2019-09-19 2020-12-04 주식회사 나노브릭 Manufacturing method of anti-counterfeit apparatus

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