KR101890983B1 - Method of manufacturing a reflect-type film for preventing counterfeit - Google Patents

Method of manufacturing a reflect-type film for preventing counterfeit Download PDF

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Publication number
KR101890983B1
KR101890983B1 KR1020160051502A KR20160051502A KR101890983B1 KR 101890983 B1 KR101890983 B1 KR 101890983B1 KR 1020160051502 A KR1020160051502 A KR 1020160051502A KR 20160051502 A KR20160051502 A KR 20160051502A KR 101890983 B1 KR101890983 B1 KR 101890983B1
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South Korea
Prior art keywords
film
light
light reflection
pattern
base film
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KR1020160051502A
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Korean (ko)
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KR20170122888A (en
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이헌
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(주) 나노메카
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Priority to KR1020160051502A priority Critical patent/KR101890983B1/en
Priority to JP2018554022A priority patent/JP2019522227A/en
Priority to PCT/KR2016/014274 priority patent/WO2017188542A1/en
Priority to CN201680071577.9A priority patent/CN108369302A/en
Publication of KR20170122888A publication Critical patent/KR20170122888A/en
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Publication of KR101890983B1 publication Critical patent/KR101890983B1/en

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    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/20—Filters
    • G02B5/203—Filters having holographic or diffractive elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M3/00—Printing processes to produce particular kinds of printed work, e.g. patterns
    • B41M3/14—Security printing
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D1/00—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D127/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Coating compositions based on derivatives of such polymers
    • C09D127/02—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment
    • C09D127/04—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
    • C09D127/06—Homopolymers or copolymers of vinyl chloride
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D133/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
    • C09D133/04—Homopolymers or copolymers of esters
    • C09D133/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, the oxygen atom being present only as part of the carboxyl radical
    • C09D133/10—Homopolymers or copolymers of methacrylic acid esters
    • C09D133/12—Homopolymers or copolymers of methyl methacrylate
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D163/00—Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D167/00—Coating compositions based on polyesters obtained by reactions forming a carboxylic ester link in the main chain; Coating compositions based on derivatives of such polymers
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/02—Diffusing elements; Afocal elements
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/02—Diffusing elements; Afocal elements
    • G02B5/0205—Diffusing elements; Afocal elements characterised by the diffusing properties
    • G02B5/0252—Diffusing elements; Afocal elements characterised by the diffusing properties using holographic or diffractive means
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/20—Filters

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Wood Science & Technology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Credit Cards Or The Like (AREA)
  • Diffracting Gratings Or Hologram Optical Elements (AREA)
  • Laminated Bodies (AREA)
  • Optical Elements Other Than Lenses (AREA)
  • Holo Graphy (AREA)

Abstract

The reflection type anti-falsification film comprises a base film on which an authenticity determination pattern is formed and a base film on which a true pattern is formed. The base film is formed on the base film along a profile of the true- Reflection film. Thus, the reflection-type anti-fouling film can transmit the incident light to realize the diffraction image.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a reflection type anti-

The present invention relates to a method for producing a reflective anti-fake film. More particularly, the present invention relates to a method of manufacturing a reflective anti-fake film capable of effectively preventing duplication of a pattern for determining authenticity.

Forgery of high-priced items such as software, CDs, DVDs, securities, liquor, and medicines is becoming a major social problem. Since most forged products are of low quality, the company has suffered tremendous damage as a result of forgery such as the loss of trust that the company has devoted much effort to. In order to solve such counterfeiting problems, companies are making efforts to prevent the distribution of counterfeit goods by giving them products that make it difficult to counterfeit or a technique to judge genuine goods and counterfeit goods.

A hologram is a typical example given to a product for preventing forgery. A hologram is a medium on which interference fringes reproducing stereoscopic images are recorded, and is made using the principle of holography. However, since there is a limit to the information that can be recorded with the hologram, it is difficult to produce a precise hologram. This problem becomes more apparent when holograms are being copied by a hologram copying mechanism such as a digital scanner.

Accordingly, a technique of recording information on the anti-fake film by the nanoimprinting method has been introduced recently. The nanoimprinting method is a method of forming a diffraction pattern on an anti-fake film using a mold having a nano pattern, and is widely used in recent years because it can record much information even at low cost.

Generally, the anti-fake film is irradiated in a straight direction so that the laser transmitted through the inside is diffracted in a certain direction. Thus, the anti-fake pattern is realized by the light diffracted by the diffraction pattern after the laser irradiated to the anti-fake film in the straight direction transmits the anti-fake film.

However, the transmissive anti-falsification film has a problem that it is difficult to apply it to products having various shapes including a three-dimensional bulk. In addition, since the transmissive anti-falsification film itself must secure the light transmittance as a whole, there is a limit to the material constituting the transmissive anti-falsification film.

It is therefore an object of the present invention to provide a reflection type anti-falsification film that overcomes the limitation of light transmittance of the transmission type anti-falsification film.

An object of the present invention is to provide a method of manufacturing a reflective anti-fake film which can easily produce a reflective anti-fake film.

In order to achieve the above object, an anti-counterfeit film according to an embodiment of the present invention includes a base film formed on an upper surface of a pattern for determining authenticity and a base film formed along a profile of the pattern for determining authenticity, And a light reflection film capable of reflecting a light incident thereon to realize a diffraction image.

In an embodiment of the present invention, the light reflecting film may include at least one of gold, silver, aluminum, chromium, nickel, and light reflecting metal.

In one embodiment of the present invention, the light emitting device may further include a passivation film covering the light reflecting film and protecting the light reflecting film.

Wherein the passivation film comprises at least one selected from the group consisting of a light-transmitting resin consisting of PVC, PMMA, PET, PT, acrylic, and epoxy.

In addition, the step of the authenticity determination pattern can be adjusted according to the refractive index of the passivation film.

In the method for manufacturing an anti-fake film according to an embodiment of the present invention, a base film on which an authenticity determination pattern is formed on an upper surface is prepared. Then, a light reflecting film capable of realizing a diffraction image is formed on the base film along the profile of the authenticity determining pattern by reflecting the light incident to the outside.

In one embodiment of the present invention, the base film may be formed through a hot embossing process, a nanoimprinting process, or a transfer printing process.

In one embodiment of the present invention, the light reflection film may be formed by an atomic layer deposition process, a sputtering process, or an ion beam process.

In an embodiment of the present invention, a passivation film covering the light reflection film and protecting the light reflection film may be additionally formed.

According to the present invention, a reflection type anti-falsification film can be attached to a product having various shapes including a three-dimensional bulk, unlike the conventional transmission type anti-falsification film. That is, in the case of the conventional transmission type anti-falsification film, since the light uses the transmitted light transmitted through the product to realize the image for authenticity determination, when the product is opaque, it is difficult to use the transmission type anti-falsification film , The reflection type anti-falsification film according to the embodiment of the present invention can be advantageously used regardless of various shapes or materials of the product to be attached.

Further, since the passivation film is additionally formed to cover the light reflecting film, the authenticity determining pattern can be protected from external impact. Furthermore, the passivation film entirely covers the pattern for authenticity determination, so that duplication of the anti-fake film can be suppressed.

1 is a cross-sectional view illustrating a reflection type anti-falsification film according to an embodiment of the present invention.
2 is a cross-sectional view illustrating a reflection type anti-falsification film according to an embodiment of the present invention.
3 is a flowchart illustrating a method of manufacturing a reflective anti-fake film according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. The present invention is capable of various modifications and various forms, and specific embodiments are illustrated in the drawings and described in detail in the text. It should be understood, however, that the invention is not intended to be limited to the particular forms disclosed, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention. In the accompanying drawings, the sizes and the quantities of objects are shown enlarged or reduced from the actual size for the sake of clarity of the present invention.

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

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In the present application, the terms "comprise", "comprising", and the like are intended to specify that there is a feature, step, function, element, or combination of features disclosed in the specification, Quot; or " an " or < / RTI > combinations thereof.

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

1 is a cross-sectional view illustrating a reflection type anti-falsification film according to an embodiment of the present invention.

Referring to FIG. 1, a reflective anti-falsification film 100 according to an embodiment of the present invention includes a base film 110 and a light reflection film 120. The reflection type anti-falsification film 100 is caused to interfere with each other as the laser light incident from the outside is reflected from the light reflection film and the reflected light is changed in phase. As a result, a specific image can be realized as mutual interference occurs. At this time, the specific image may correspond to the image for authenticity determination.

The base film 110 may be made of a polymer material. Further, a double-sided adhesive tape may be formed on the other surface of the base film 110 to attach the base film 110 to a specific product.

An authenticity determination pattern is formed on one side of the base film 110. The authenticity determination pattern may have various sizes and shapes. For example, the shape of the authenticity determination pattern may include a stripe shape, a mosaic shape, a pyramid shape, and the like.

The authenticity determination pattern may be formed through a hot embossing process, a nanoimprinting process, or a transfer printing process.

The light reflection film 120 is formed on the base film 110 along the profile of the authenticity determination pattern. Accordingly, the light reflection film 120 may be formed to have a uniform thickness. The light reflection film 120 reflects the light incident to the outside to realize a diffraction image.

The light reflection film 120 may include a light reflective metal material such as gold, silver, aluminum, chromium, and nickel. The light reflection film 120 may have a thickness of 5 nm to 500 nm.

The phase of the light reflected from the surface of the light reflection film 120 is changed due to the difference in level formed in the pattern for authenticity determination of the light reflection film 120. As a result, the reflected light beams interfere with each other, thereby realizing a specific diffraction image. The specific diffraction image may correspond to, for example, an image for authenticity determination or a QR code.

According to an embodiment of the present invention, unlike the conventional transmissive anti-falsification film, the reflective anti-falsification film 100 can be attached to products having various shapes including a three-dimensional bulk. That is, in the case of the conventional transmissive anti-falsification film, the transmitted light transmitted through the product realizes an image for authenticity determination, so that it is difficult to use the transmissive anti-falsification film when the product is opaque.

On the other hand, the reflective anti-falsification film 100 according to the embodiment of the present invention may have an advantage that it can be used regardless of various shapes or materials of the product to be attached.

2 is a cross-sectional view illustrating a reflection type anti-falsification film according to an embodiment of the present invention.

2, a reflective anti-falsification film 200 according to an embodiment of the present invention includes a base film 210, a light reflection film 220, and a passivation film 230. The reflection type anti-falsification film 200 is caused to interfere with each other as the laser light incident from the outside is reflected from the light reflection film and the reflected light is changed in phase. As a result, a specific image can be realized as mutual interference occurs. At this time, the specific image may correspond to the image for authenticity determination.

The passivation film 230 is provided to cover the light reflection film 220. Thus, the passivation film 230 can protect the light reflection film 220 and the authenticity determination pattern from an external impact. Furthermore, since the passivation film 230 covers the authenticity determination pattern as a whole, duplication of the anti-fake film 200 can be suppressed. The passivation film 230 is provided to fill voids between the patterns for authenticity determination.

The passivation film 230 may be formed of one of transparent resin made of PVC, PMMA, PET, PT, acrylic, and epoxy.

Here, the level difference of the authenticity determination pattern can be adjusted according to the refractive index of the passivation film 230. That is, the size and shape of the pattern for determining authenticity can be adjusted according to the value of the refractive index of the passivation film 230.

When one side of the passivation film 230 is in contact with the light reflection film 220 and the other side is exposed, the other side of the passivation film 230 may be flat.

3 is a flowchart illustrating a method of manufacturing a reflective anti-fake film according to an embodiment of the present invention.

1 to 3, in a method of manufacturing a reflective anti-fake film according to an embodiment of the present invention, a base film having an authenticity determination pattern formed on an upper surface thereof is prepared (S110). The authenticity determination pattern forms a base film by forming an authenticity determination pattern on the preliminary base film. The authenticity determination pattern may be formed through a hot embossing process, a nanoimprinting process, or a transfer printing process.

Then, a light reflecting film capable of realizing a diffraction image is formed on the base film along the profile of the authenticity determining pattern by reflecting the light incident on the outside (S120). The light reflection film may be formed through an atomic layer deposition process, a sputtering process, or an ion beam process.

The light reflection film may be formed using a light reflective metal material such as gold, silver, aluminum, chromium, and nickel. The light reflection film may be formed to have a thickness of 5 nm to 500 nm.

In an embodiment of the present invention, a passivation film covering the light reflection film and protecting the light reflection film may be additionally formed (S130).

The passivation film may be formed of one of transparent resin made of PVC, PMMA, PET, PT, acrylic and epoxy.

Here, the step of the truth-determining pattern can be adjusted according to the refractive index of the passivation film. That is, the magnitude and shape of the pattern for authenticity determination can be adjusted according to the value of the refractive index of the passivation film.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be taken in conjunction with the present invention. Variations and changes are possible. Such variations and modifications are to be considered as falling within the scope of the invention and the appended claims.

Claims (9)

delete delete delete delete delete Preparing a base film on which an authenticity determining pattern is formed on an upper surface;
Forming a light reflection film on the base film so as to have a uniform thickness along the profile of the authenticity determination pattern and reflecting light incident to the outside to realize a diffraction image; And
Forming a passivation film covering the light reflection film and protecting the light reflection film,
Wherein the step of preparing the base film includes a step of adjusting a step of the truth determination pattern according to a refractive index of the passivation film,
Wherein the light is reflected from a light reflecting film formed along the profile of the true-truth determining pattern via the passivation film to realize the diffraction image. [7] The method of claim 6, wherein the step of preparing the base film comprises performing a hot embossing process, a nanoimprinting process, or a transfer printing process. The method according to claim 6, wherein the step of forming the light reflection film is performed by an atomic layer deposition process, a sputtering process, or an ion beam process. delete
KR1020160051502A 2016-04-27 2016-04-27 Method of manufacturing a reflect-type film for preventing counterfeit KR101890983B1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
KR1020160051502A KR101890983B1 (en) 2016-04-27 2016-04-27 Method of manufacturing a reflect-type film for preventing counterfeit
JP2018554022A JP2019522227A (en) 2016-04-27 2016-12-07 Reflective anti-counterfeit film
PCT/KR2016/014274 WO2017188542A1 (en) 2016-04-27 2016-12-07 Reflective-type film for preventing counterfeiting
CN201680071577.9A CN108369302A (en) 2016-04-27 2016-12-07 Reflection-type anti false film

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020160051502A KR101890983B1 (en) 2016-04-27 2016-04-27 Method of manufacturing a reflect-type film for preventing counterfeit

Publications (2)

Publication Number Publication Date
KR20170122888A KR20170122888A (en) 2017-11-07
KR101890983B1 true KR101890983B1 (en) 2018-08-27

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JP (1) JP2019522227A (en)
KR (1) KR101890983B1 (en)
CN (1) CN108369302A (en)
WO (1) WO2017188542A1 (en)

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KR101949313B1 (en) 2018-05-18 2019-02-19 주식회사 에임 Method for manufacturing of three dimensional film having copy protection structure
KR102281698B1 (en) * 2019-04-29 2021-07-26 고려대학교 산학협력단 Anti-counterfeit film with multi-phase and manufacturing method by the same
KR102214523B1 (en) * 2019-07-31 2021-02-10 (주) 나노메카 Film structure for preventing counterfeit
KR102263833B1 (en) * 2019-09-09 2021-06-11 주식회사 와이즈가드 Optical functional pattern structure having optical refleting layer
KR102117792B1 (en) * 2019-11-15 2020-06-09 주식회사 와이즈가드 Light source device
KR102218537B1 (en) 2020-01-22 2021-02-22 주식회사 지케이씨 Method for manufacturing of three dimensional sheet having copy protection structure
WO2023003125A1 (en) * 2021-07-19 2023-01-26 (주) 나노메카 Transmissive diffractive optical device, film comprising same, and method for manufacturing film
WO2023003124A1 (en) * 2021-07-19 2023-01-26 (주) 나노메카 Reflective diffractive optical element, film comprising same, and manufacturing method therefor

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JP2008107483A (en) * 2006-10-24 2008-05-08 Toppan Printing Co Ltd Ovd medium, information print having ovd medium attached thereto and manufacturing method of ovd medium
JP2008105341A (en) 2006-10-27 2008-05-08 Toppan Printing Co Ltd Genuineness determining sheet
JP2009116857A (en) 2007-10-19 2009-05-28 Toppan Printing Co Ltd Structure, sticker, transcription foil, ink, medium and form for anti counterfeit, and method for determining authenticity
JP2009217061A (en) * 2008-03-11 2009-09-24 Sony Corp Hologram substrate, method for manufacturing the same, and electronic equipment

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WO2017188542A1 (en) 2017-11-02
JP2019522227A (en) 2019-08-08
KR20170122888A (en) 2017-11-07
CN108369302A (en) 2018-08-03

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