US20160282810A1 - Light diffraction layer laminated sheet and method for producing card - Google Patents

Light diffraction layer laminated sheet and method for producing card Download PDF

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Publication number
US20160282810A1
US20160282810A1 US14/442,313 US201314442313A US2016282810A1 US 20160282810 A1 US20160282810 A1 US 20160282810A1 US 201314442313 A US201314442313 A US 201314442313A US 2016282810 A1 US2016282810 A1 US 2016282810A1
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United States
Prior art keywords
layer
light diffraction
card
sheet material
hologram
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Abandoned
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US14/442,313
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English (en)
Inventor
Takumi Motoi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dai Nippon Printing Co Ltd
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Dai Nippon Printing Co Ltd
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Application filed by Dai Nippon Printing Co Ltd filed Critical Dai Nippon Printing Co Ltd
Assigned to DAI NIPPON PRINTING CO. LTD. reassignment DAI NIPPON PRINTING CO. LTD. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: MOTOI, TAKUMI
Publication of US20160282810A1 publication Critical patent/US20160282810A1/en
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    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
    • G03H1/00—Holographic processes or apparatus using light, infrared or ultraviolet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
    • G03H1/02—Details of features involved during the holographic process; Replication of holograms without interference recording
    • G03H1/0252—Laminate comprising a hologram layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
    • B32B27/304—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising vinyl halide (co)polymers, e.g. PVC, PVDC, PVF, PVDF
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
    • B32B27/365—Layered products comprising a layer of synthetic resin comprising polyesters comprising polycarbonates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/02—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions
    • B32B3/04—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions characterised by at least one layer folded at the edge, e.g. over another layer ; characterised by at least one layer enveloping or enclosing a material
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/14—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by a layer differing constitutionally or physically in different parts, e.g. denser near its faces
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    • B32B7/04—Interconnection of layers
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    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
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    • 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
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    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/20—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof characterised by a particular use or purpose
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    • B42D25/30—Identification or security features, e.g. for preventing forgery
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    • 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
    • B42D25/328—Diffraction gratings; Holograms
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • 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
    • B42D25/351—Translucent or partly translucent parts, e.g. windows
    • 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
    • B42D25/40—Manufacture
    • B42D25/45—Associating two or more layers
    • 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
    • B42D25/45—Associating two or more layers
    • B42D25/455—Associating two or more layers using heat
    • 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
    • B42D25/45—Associating two or more layers
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    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • 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
    • B42D25/45—Associating two or more layers
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    • B42D25/47—Associating two or more layers using chemicals or adhesives using adhesives
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • 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
    • B42D25/475—Cutting cards
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/18—Diffraction gratings
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
    • G03H1/00—Holographic processes or apparatus using light, infrared or ultraviolet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
    • G03H1/0005—Adaptation of holography to specific applications
    • G03H1/0011—Adaptation of holography to specific applications for security or authentication
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B32B2307/30—Properties of the layers or laminate having particular thermal properties
    • B32B2307/31—Heat sealable
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    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/40—Properties of the layers or laminate having particular optical properties
    • B32B2307/402—Coloured
    • B32B2307/4023—Coloured on the layer surface, e.g. ink
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    • B42D2033/16—

Definitions

  • the present invention relates to a light diffraction layer laminated sheet and a method for producing a card.
  • Patent Document 1 Japanese Unexamined Patent Application, Publication No. 2002-32724.
  • An object of the present invention is to provide a light diffraction layer laminated sheet by which a card having a light diffraction structure can be easily produced, and a card.
  • the light diffraction layer laminated sheet includes: a transparent sheet layer ( 20 , 20 A, 220 , 220 A, 320 , 320 A); a light diffraction layer ( 22 ) configured to have an outer shape smaller than an outer shape of the transparent sheet layer and to be laminated onto an upper side which is one surface side of the transparent sheet layer; and a lower adhesive layer ( 21 ) that bonds the transparent sheet layer and the light diffraction layer together.
  • the light diffraction layer laminated sheet according to the first aspect which further includes: a print sheet) layer ( 30 , 30 A), which has been undergone printing, configured to be laminated onto the light diffraction layer ( 22 ); and an upper adhesive layer ( 23 , 224 ) that is provided on the diffraction layer, such that the light diffraction layer and the print sheet layer are bonded together.
  • the light diffraction layer laminated sheet according to any one of the first to fifth aspect is provided, wherein the light diffraction layer ( 22 ) includes a Lippmann-type hologram.
  • the present invention it is possible to provide a light diffraction layer laminated sheet by which a card having a light diffraction structure can be easily produced, and a card.
  • FIG. 3 is a top view of the substrate sheet material 10 A, the hologram laminated sheet material 20 A, and the print sheet material 30 A according to the first embodiment.
  • FIG. 6 is a cross-sectional view of a substrate sheet material 10 A and a hologram laminated sheet material 320 A of the card 301 according to the third embodiment.
  • FIG. 7A and FIG. 7B are a top view and a cross-sectional view of a card 401 according to a fourth embodiment, respectively.
  • FIG. 1A and FIG. 1B are a top view and a cross-sectional view of a card 1 of a first embodiment, respectively.
  • FIG. 1A is a top view of the card 1 (a view illustrating a front 1 a of the card when viewed in the normal direction),
  • FIG. 1B is a cross-sectional view of the card 1 .
  • the card 1 is used as, for example, a cash card of a bank.
  • the card 1 includes a card substrate 10 , a lower print layer 12 , a transparent sheet layer 20 , an HS (heat seal) layer 21 (lower adhesive layer), a hologram layer 22 (light diffraction layer), a PC layer 23 (upper adhesive layer), a print sheet layer 30 , a magnetic stripe 30 a , and an upper print layer 31 .
  • the transparent sheet layer 20 , the HS layer 21 , the hologram layer 22 , the PC layer 23 , the print sheet layer 30 , and the upper print layer 31 are laminated in this order from a lower side Z 1 to an upper side Z 2 (one side) of the card substrate 10 .
  • the card substrate 10 is a base member of the card 1 .
  • the card substrate 10 is formed of a resin sheet material such as PET, PET-G, PVC, or PC.
  • An outer shape of the card substrate 10 is equal to an outer shape of the card 1 .
  • a color of an upper surface of the card substrate 10 is black.
  • a black may be a color of the card substrate 10 itself or may be a color which is printed on a substrate, the color of which is other than black.
  • the lower print layer 12 is provided on a lower surface of the card substrate 10 .
  • the transparent sheet layer 20 is a transparent layer on which the hologram layer 22 is provided.
  • the card substrate 10 is formed of a resin sheet material such as PET, PET-G, PVC, or PC.
  • An outer shape of the transparent sheet layer 20 is equal to the outer shape of the card substrate 10 .
  • An outer shape of the hologram layer 22 is smaller than the outer shape of the card substrate 10 , that is, smaller than an outer shape of the transparent sheet layer 20 . That is, the hologram layer 22 is laminated only on a partial region of the card substrate 10 . The reason for the partial region is to make the expensive hologram layer 22 smaller, resulting in reduced cost.
  • the PC layer 23 which is provided on the hologram layer 22 , is a layer which bonds the hologram layer 22 and the print sheet layer 30 together.
  • An outer shape of the PC layer 23 is equal to the outer shape of the hologram layer 22 .
  • the PC layer 23 is a thermoplastic resin sheet of PC (polycarbonate) in the embodiments.
  • the type of resin is not limited to PC and may include PET, for example.
  • a temperature of the appearance of adhesiveness of the PC layer 23 is higher than that of the HS layer 21 .
  • the print sheet layer 30 is formed of a resin sheet material such as PET, PET-G, or PVC.
  • An upper surface of the print sheet layer 30 may have a mirror-like finish or a matte finish.
  • An outer shape of the print sheet layer 30 is similar to the outer shape of the card substrate 10 .
  • the magnetic stripe 30 a is provided on the upper surface of the print sheet layer 30 .
  • Information relating to a bank account number or the like is recorded in the magnetic stripe 30 a . This information can be read using a reader (not illustrated).
  • the magnetic stripe 30 a is disposed outside a transition portion 31 c (to be described below) of the upper print layer 31 .
  • the upper print layer 31 is printed with characters 31 a indicating the name of a bank, graphics 31 b , or other necessary information (not illustrated).
  • the transition portion 31 c is a portion of gradation printing in which the color density drops progressively towards inside the gradation printing.
  • An outer edge portion 31 d of the transition portion 31 c is positioned more inside than an edge portion 22 b of the hologram layer 22 .
  • the upper print layer 31 may alternatively be provided on a lower surface of the print sheet layer 30 if necessary.
  • the region 311 positioned more outside than the transition portion 31 c of the upper print layer 31 has the color density equal or substantially equal to a color density of the card substrate 10 .
  • the edge portion 22 b of the hologram layer 22 is shielded and hidden by the upper print layer 31 (see an arrow A).
  • the card substrate 10 and the upper print layer 31 have a black color or its family, which absorbs light, the edge portion 22 b of the hologram layer 22 is hardly recognizable visually.
  • the upper print layer 31 and the card substrate 10 have a black color of a similar color family. In this manner, the upper print layer 31 and the card substrate 10 are visually recognized as a single seamless part.
  • the hologram image 22 a can be confirmed inside the window portion 31 g . Since the hologram is a transparent hologram, the color of the card substrate 1 a is visually recognized at regions (an external region 22 c outside the building, an internal portion 22 e inside the building other than a line 22 d , and the like) other than the hologram image 22 a of the hologram layer 22 . In addition, as described above, the upper print layer 31 and the and substrate 10 are visually recognized seamlessly as a single part.
  • the circumference of the hologram image 22 a is seen to have a wider range of black background surface than the hologram layer 22 .
  • the character 31 a which is printed to traverse the window portion 31 g , is visually recognizable across the window portion 31 g , the transition portion 31 c , and the outside of the transition portion 31 c .
  • the character 31 a indicating a bank is seen overlapped with the hologram image 22 a inside the window portion 31 g.
  • a transfer foil provided on the PET is transferred onto a lower side z 1 of the sheet material.
  • the print sheet material 30 A is produced in which the magnetic stripe 30 a , and the upper print layer 31 are laminated.
  • the substrate sheet material 10 A and the hologram laminated sheet material 20 A are laminated to each other using thermal welding while being heated and pressurized. These layers may alternatively be bonded each other using an adhesive or the like.
  • the print sheet material 30 A is then laminated through thermal welding while being heated and pressurized onto the upper side Z 2 of the hologram laminated sheet material 20 A laminated in the above step (1).
  • These layers may alternatively be bonded each other using an adhesive or the like.
  • the PC layer 23 is softened by a heat-sealing process, such that the hologram laminated sheet material 20 A and the print sheet material 30 A are bonded each other. In this case, since the PC layer 23 is softened, it is possible to prevent the hologram from suffering from damage due to the application of a pressure.
  • the PC layer 23 is a thermoplastic resin sheet, it is possible to use the PC layer 23 as not only an adhesive layer but also a protection for the hologram layer 22 against the damage due to the application of a pressure.
  • the laminated sheet materials 10 A, 20 A, and 30 A are divided into separate pieces with an outer shape of the card by punching.
  • the hologram laminated sheet material 20 A since the hologram laminated sheet material 20 A has been produced in advance in a separate step, it is possible to produce easily the card 1 embedded with the Lippmann hologram by laminating the sheet materials 10 A, 20 A, and 30 A.
  • the hologram laminated sheet material 20 A having the hologram layer 22 is produced at a factory having the required technology; the substrate sheet material 10 A and the print sheet material 30 A are produced at a different factory from the hologram laminated sheet material 20 A; and the main step is also performed at a different factory from the hologram laminated sheet material 20 A.
  • the separate step of producing the hologram laminated sheet material 20 A facilitates, the production of the card 1 of the present embodiment, which has a Lippmann hologram for which a high technique is required.
  • FIG. 4 is a cross-sectional view (corresponding to FIG. 2 ) of a substrate sheet material 10 A, a hologram laminated sheet material 220 A, and a print sheet material 30 A according to the second embodiment.
  • the hologram laminated sheet material 220 A is configured so that a PET layer 223 and an HS layer 224 (upper adhesive layer) instead of the PC layer 23 (see FIG. 1B ) are laminated from a lower side Z 1 in this order.
  • the HS layer 224 bonds the hologram laminated sheet material 20 A and the print sheet material 30 A by a heat-sealing process. Accordingly, for the same reason as in the first embodiment, a temperature of the appearance of adhesiveness of the HS layer 224 is higher than a temperature of the appearance of adhesiveness of the HS layer 21 . That is for creation a condition under which the adhesiveness of the HS layer 21 appears, but the adhesiveness of the HS layer 221 does not appear, when the hologram layer 22 is laminated onto the transparent sheet layer 20 by heat sealing.
  • the card of the second embodiment has the same effect as that of the first embodiment.
  • FIG. 5A and FIG. 5B are a top view and a cross-sectional view of a card 301 of the third embodiment.
  • FIG. 6 is a cross-sectional view of a substrate sheet material 10 A and a hologram laminated sheet material 320 A of the card 301 according to the third embodiment.
  • the card 301 is configured so that a PC layer 23 (see FIG. 1B ) or the like is not provided on a hologram layer 22 and an upper print layer 331 is directly provided on the hologram layer 22 .
  • a magnetic stripe 30 a is provided on a transparent sheet layer 20 .
  • the hologram laminated sheet material 320 A has a simple configuration, accordingly.
  • the upper print layer 331 is provided using foil transfer or through a step of printing, such as silk printing.
  • the card 301 is configured so that the PC layer 23 (see FIG. 1B ) is provided on the hologram layer 22 , similarly with the first, embodiment.
  • the first embodiment it is possible to protect the hologram and suppress the damage of the hologram in the steps of heating and applying a pressure, for example, at the time of the production.
  • the configuration of the fourth embodiment is also applicable to the second and third embodiments.

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  • Computer Security & Cryptography (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Optics & Photonics (AREA)
  • Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Accounting & Taxation (AREA)
  • Finance (AREA)
  • Credit Cards Or The Like (AREA)
  • Holo Graphy (AREA)
  • Diffracting Gratings Or Hologram Optical Elements (AREA)
US14/442,313 2012-11-13 2013-11-12 Light diffraction layer laminated sheet and method for producing card Abandoned US20160282810A1 (en)

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JP2012249650A JP6273669B2 (ja) 2012-11-13 2012-11-13 光回折層積層体シート、カードの製造方法
JP2012-249650 2012-11-13
PCT/JP2013/080608 WO2014077256A1 (fr) 2012-11-13 2013-11-12 Feuille stratifiée à couche de diffraction de la lumière et procédé de fabrication d'une carte

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FI3929002T3 (fi) 2018-01-09 2023-09-13 Toppan Printing Co Ltd Laminaatti, todennus ja menetelmä laminaatin tuottamiseksi

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EP4328671A2 (fr) 2024-02-28
JP6273669B2 (ja) 2018-02-07
WO2014077256A1 (fr) 2014-05-22
FI3270231T3 (fi) 2023-02-19
EP4328671A3 (fr) 2024-05-01
JP2014098770A (ja) 2014-05-29
FI3597445T3 (fi) 2024-03-14
EP3597445B1 (fr) 2024-01-17
EP3270231A1 (fr) 2018-01-17
EP2921914A1 (fr) 2015-09-23
US20200292988A1 (en) 2020-09-17
EP2921914B1 (fr) 2017-09-27
US11934148B2 (en) 2024-03-19
EP3597445A1 (fr) 2020-01-22
EP2921914A4 (fr) 2016-06-15
EP3270231B1 (fr) 2022-12-14

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