WO2010137049A1 - Anti-counterfeit device for valuable documents - Google Patents

Anti-counterfeit device for valuable documents Download PDF

Info

Publication number
WO2010137049A1
WO2010137049A1 PCT/IT2010/000211 IT2010000211W WO2010137049A1 WO 2010137049 A1 WO2010137049 A1 WO 2010137049A1 IT 2010000211 W IT2010000211 W IT 2010000211W WO 2010137049 A1 WO2010137049 A1 WO 2010137049A1
Authority
WO
WIPO (PCT)
Prior art keywords
layer
layers
holographic
counterfeit device
metalized
Prior art date
Application number
PCT/IT2010/000211
Other languages
French (fr)
Inventor
Dino Radice
Original Assignee
Centro Grafico Dg S.P.A.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=41690701&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=WO2010137049(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Centro Grafico Dg S.P.A. filed Critical Centro Grafico Dg S.P.A.
Priority to EP10736810.2A priority Critical patent/EP2435255B1/en
Priority to MX2011012564A priority patent/MX2011012564A/en
Publication of WO2010137049A1 publication Critical patent/WO2010137049A1/en

Links

Classifications

    • 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
    • B42D25/20—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof characterised by a particular use or purpose
    • B42D25/29—Securities; Bank notes
    • B42D2033/10—
    • B42D2033/18—
    • 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
    • B42D25/328—Diffraction gratings; Holograms

Definitions

  • the present invention relates to an anti- counterfeit device for valuable documents such as banknotes, certificates, cheques, vouchers, identity card, passports, seals, security labels and the like, as well as security supports protected by such an anti-counterfeit device.
  • Such labels have a holographic component which is difficult or expensive to counterfeit by counterfeiters, due to its complexity and the relative carrying out high cost.
  • the fundamental features which characterize the anti-counterfeit device of the present invention are the following: - presence of holographies in pre-determined areas of the device;
  • a window effect i.e. a transparency at the non-holographic areas, through which the underlying graphic prints are visible, printed in perfect register in such a way to not interfere with the holographic areas so that a mutually perfect demetallization and print in register have to be carried out, preventing any overlapping from occurring;
  • Figure 1 is a cross-sectional view of a first possible embodiment of an anti-counterfeit device according to the present invention
  • Figure 2 is a cross-sectional view of a variant of the embodiment of an anti-counterfeit device according to the present invention
  • Figure 3 is a cross-sectional view of a further variant of the embodiment of an anti-counterfeit device according to the present invention
  • the anti-counterfeit device in accordance with the present invention is supported by a carrier film 1 and it includes several layers (a) to (g) ending with an adhesive layer (h) which serves to adhere the anti-counterfeit device on the substrate of paper, plastics or other suitable material .
  • the anti-counterfeit device is composed of the following layers:
  • a detaching or release layer in contact with the carrier film 1 such a layer is made of detaching lacquers permitting the subsequent layers (b)-(h) to be released.
  • the detaching layer is made of natural and/or synthetic polymers and preferably of natural or synthetic waxes, PVA, CA, silicones, PTFE, with thicknesses ranging from 0.05 to 2 microns, but preferably between 0.1 to 0.5 microns.
  • an anti-scratch layer a layer made of scratch-resistant lacquers, synthetic or natural polymers, preferably acrylic resins, polyurethane resins, modified with natural and/or synthetic waxes, silica and derivatives thereof, with thicknesses ranging from 0.1 to 2 microns, but preferably from 0.2 to 0.6 microns;
  • a layer resisting to chemical attacks a layer made of bi-component and/or UV polymerized lacquers resistant to chemical attacks, synthetic polymers, but preferably of conventionally (hot air) or UV radiation-dried acrylic, polyurethane, epoxy resins, polyesters, with thicknesses ranging from 0.3 to 2 microns, but preferably from 0.5 to 1 microns.
  • an embossing layer layer made of thermoplastic lacquers, synthetic and/or natural polymers, but preferably of conventionally (hot air) or UV radiation-dried acrylic, polyurethane, epoxy resins, polyesters, with thicknesses ranging from 0.3 to 2 microns, but preferably from 0.5 to 1 microns.
  • layer made of thermoplastic lacquers, synthetic and/or natural polymers but preferably of conventionally (hot air) or UV radiation-dried acrylic, polyurethane, epoxy resins, polyesters, with thicknesses ranging from 0.3 to 2 microns, but preferably from 0.5 to 1 microns.
  • the optically-changing holographic and non-holographic diffractive structures are etched;
  • a reflecting layer the transparent or semi- transparent layer, localized only at the diffractive areas, can be made of a suitable metal layer laid under vacuum or inks comprising the following compounds: aluminium, copper, chrome, silver, gold, nickel, or suitable alloys such as stainless steel, Cr/Ni and the like, with typical thicknesses ranging from 20 to 100 nm. It can be further made of compounds such as Zn, Cd, Bi, Cr, and oxides thereof, Ti ⁇ 2 , ZnS, ITO, ATO, FTO, Al 2 O 3 , iron oxides, copper- aluminium alloys.
  • the reflecting layer thus made can be present in the form of patterns, symbols, characters, dots, etc;
  • layer with registered prints and/or graphisms a layer bearing prints made by normally visible pigments and dyes, inks which are visible under ultraviolet and/or infrared light, thermo- chromic pigments, photo-chromic pigments, iridescent and OVI type-optically pigments.
  • barrier layer a layer made of resistant bi- component and/or UV-polymerizable lacquers, synthetic polymers, but preferably acrylic, polyurethane, epoxy resins, polyesters, with thicknesses ranging from 0.5 to 2 microns, but preferably from 0.6 to 1 microns.
  • an adhesive layer a layer made of thermoplastic adhesives, cold-applied thermo- reactivated adhesives or UV-polymerizable adhesives, pressure-sensitive adhesives (PSA) , with thicknesses ranging from 2 to 200 microns, preferably from 3 to 20 microns, made of acrylic, polyurethane, epoxy resins, ethyl vinyl acetate (EVA), polyethylene (PE), polyesters, natural rubbers.
  • PSA pressure-sensitive adhesives
  • the anti-counterfeit device differs from the one illustrated in Figure 1 in that the graphics (f) are not covered by the embossing lacquer (d) and therefore the embossing lacquer is made in a discontinuous and localized manner, this allowing the layer with registered prints to be interposed.
  • the anti-counterfeit device differs from the one depicted in Figure 1 in that a further layer (e' ) is inserted in partial zones of the holographic area bearing printed graphism, such that they are visible through the transparent or semi-transparent metal layer.
  • the reflecting layer localized only at the diffractive areas, is made, in this case, of an appropriate and finer metal layer laid under vacuum or inks comprising the following compounds: aluminium, copper, chrome, silver, gold, nickel, or suitable alloys as stainless steel, Cr/Ni and the like, with typical thicknesses between 5 and 70 nm.
  • the reflecting layer thus made can be present in the form of patterns, symbols, characters, dots, etc., and always such to be semi-transparent.
  • the anti-counterfeit device in accordance with the invention can be provided in the form of a patch or a holographic strip to be either hot-applied, by means of a punch or pressure roll, or cold-applied, according to the kind of the bonding layer applied on the target substrate. Moreover, it can also be in the form of security wires, coils, strips, seals and other formats.
  • the presence of the detaching layer, i.e. release layer, (a) causes the subsequent layers (b)-(h) to detach from the carrier film 1 and to be applied and adhered, by means of the adhesive layer h) , on the target substrate 2 to be protected.

Abstract

To a known multi-layered anti-counterfeit device, comprising a carrier layer (1), a detaching lacquer layer (a), an anti-scratch lacquer layer (b), a lacquer layer (c) resistant to chemical attacks, a lacquer layer (d) permitting the embossing, on or metalized reflecting layers (e) one or more barrier layers (g) made of resistant lacquers, an adhesive layer (h) and a substrate (2) for applying said anti- counterfeit device, according to the invention, the layer (d) of the continuous or discontinuous type, has embossed holographic areas in zone alternating with non holographic areas; under said layer (d) one or more layers (f) are provided, bearing prints or graphisms arranged between reflecting layers (e) provided under the layer (d) and placed only in correspondence with non-diffractive areas, the barrier layer being located under the metalized layers (e) and a transparent area is formed between the diffractive areas (d).

Description

ANTI-COUNTERFEIT DEVICE FOR VALUABLE DOCUMENTS
* * * *
FIELD OF THE INVENTION The present invention relates to an anti- counterfeit device for valuable documents such as banknotes, certificates, cheques, vouchers, identity card, passports, seals, security labels and the like, as well as security supports protected by such an anti-counterfeit device.
PRIOR ART
Devices for the authenticity verification such as labels or holographic components to be applied to documents or products in order to verify the authenticity thereof are known. In general, multilayered labels are known, which contain security information confirming the authenticity of the label itself.
Such labels have a holographic component which is difficult or expensive to counterfeit by counterfeiters, due to its complexity and the relative carrying out high cost.
It is the object of the invention to design devices apt to protect against the counterfeit, which are more reliable then those known and which i discourage a possible counterfeit.
The fundamental features which characterize the anti-counterfeit device of the present invention are the following: - presence of holographies in pre-determined areas of the device;
- presence of a transparent or semi-transparent, metalized layer or other type of reflecting layer, only at the holographic areas; - carrying out a window effect, i.e. a transparency at the non-holographic areas, through which the underlying graphic prints are visible, printed in perfect register in such a way to not interfere with the holographic areas so that a mutually perfect demetallization and print in register have to be carried out, preventing any overlapping from occurring;
- positioning the graphics, expressly created, in correspondence with the window area, devoid of any metallization. As a variant, other graphics can be even inserted under the transparent or semi- transparent metalized layer which, therefore, is also made in a discontinuous and localized manner, in order to allow a higher security against any attempt of counterfeit. An anti-counterfeiting device, which summarizes the fundamental features of the invention, is defined in the enclosed claim 1, whereas the subsequent claims define possible variants. The invention is disclosed in detail below, with reference to exemplary, but not limitative, embodiments, referring to the attached drawings, wherein:
Figure 1 is a cross-sectional view of a first possible embodiment of an anti-counterfeit device according to the present invention;
Figure 2 is a cross-sectional view of a variant of the embodiment of an anti-counterfeit device according to the present invention; and Figure 3 is a cross-sectional view of a further variant of the embodiment of an anti-counterfeit device according to the present invention
Referring to Figure 1, the anti-counterfeit device in accordance with the present invention is supported by a carrier film 1 and it includes several layers (a) to (g) ending with an adhesive layer (h) which serves to adhere the anti-counterfeit device on the substrate of paper, plastics or other suitable material . The anti-counterfeit device is composed of the following layers:
(a) a detaching or release layer in contact with the carrier film 1; such a layer is made of detaching lacquers permitting the subsequent layers (b)-(h) to be released. The detaching layer is made of natural and/or synthetic polymers and preferably of natural or synthetic waxes, PVA, CA, silicones, PTFE, with thicknesses ranging from 0.05 to 2 microns, but preferably between 0.1 to 0.5 microns. (b) an anti-scratch layer: a layer made of scratch-resistant lacquers, synthetic or natural polymers, preferably acrylic resins, polyurethane resins, modified with natural and/or synthetic waxes, silica and derivatives thereof, with thicknesses ranging from 0.1 to 2 microns, but preferably from 0.2 to 0.6 microns;
(c) a layer resisting to chemical attacks: a layer made of bi-component and/or UV polymerized lacquers resistant to chemical attacks, synthetic polymers, but preferably of conventionally (hot air) or UV radiation-dried acrylic, polyurethane, epoxy resins, polyesters, with thicknesses ranging from 0.3 to 2 microns, but preferably from 0.5 to 1 microns.
(d) an embossing layer: layer made of thermoplastic lacquers, synthetic and/or natural polymers, but preferably of conventionally (hot air) or UV radiation-dried acrylic, polyurethane, epoxy resins, polyesters, with thicknesses ranging from 0.3 to 2 microns, but preferably from 0.5 to 1 microns. In the same layer the optically-changing holographic and non-holographic diffractive structures are etched;
(e) a reflecting layer: the transparent or semi- transparent layer, localized only at the diffractive areas, can be made of a suitable metal layer laid under vacuum or inks comprising the following compounds: aluminium, copper, chrome, silver, gold, nickel, or suitable alloys such as stainless steel, Cr/Ni and the like, with typical thicknesses ranging from 20 to 100 nm. It can be further made of compounds such as Zn, Cd, Bi, Cr, and oxides thereof, Tiθ2, ZnS, ITO, ATO, FTO, Al2O3, iron oxides, copper- aluminium alloys. The reflecting layer thus made can be present in the form of patterns, symbols, characters, dots, etc;
(f) layer with registered prints and/or graphisms : a layer bearing prints made by normally visible pigments and dyes, inks which are visible under ultraviolet and/or infrared light, thermo- chromic pigments, photo-chromic pigments, iridescent and OVI type-optically pigments.
(g) barrier layer: a layer made of resistant bi- component and/or UV-polymerizable lacquers, synthetic polymers, but preferably acrylic, polyurethane, epoxy resins, polyesters, with thicknesses ranging from 0.5 to 2 microns, but preferably from 0.6 to 1 microns.
(h) an adhesive layer; a layer made of thermoplastic adhesives, cold-applied thermo- reactivated adhesives or UV-polymerizable adhesives, pressure-sensitive adhesives (PSA) , with thicknesses ranging from 2 to 200 microns, preferably from 3 to 20 microns, made of acrylic, polyurethane, epoxy resins, ethyl vinyl acetate (EVA), polyethylene (PE), polyesters, natural rubbers.
In accordance with the variant illustrated in Figure 2, the anti-counterfeit device differs from the one illustrated in Figure 1 in that the graphics (f) are not covered by the embossing lacquer (d) and therefore the embossing lacquer is made in a discontinuous and localized manner, this allowing the layer with registered prints to be interposed.
(g) In accordance with the further variant illustrated in Figure 3, the anti-counterfeit device differs from the one depicted in Figure 1 in that a further layer (e' ) is inserted in partial zones of the holographic area bearing printed graphism, such that they are visible through the transparent or semi-transparent metal layer. The reflecting layer, localized only at the diffractive areas, is made, in this case, of an appropriate and finer metal layer laid under vacuum or inks comprising the following compounds: aluminium, copper, chrome, silver, gold, nickel, or suitable alloys as stainless steel, Cr/Ni and the like, with typical thicknesses between 5 and 70 nm. It can be further made of compounds such as Zn, Cd, Bi, Cr, and oxides thereof, TiU2, ZnS, ITO, ATO, FTO, Al2O3, iron oxides, copper-aluminium alloys. The reflecting layer thus made can be present in the form of patterns, symbols, characters, dots, etc., and always such to be semi-transparent.
The anti-counterfeit device in accordance with the invention can be provided in the form of a patch or a holographic strip to be either hot-applied, by means of a punch or pressure roll, or cold-applied, according to the kind of the bonding layer applied on the target substrate. Moreover, it can also be in the form of security wires, coils, strips, seals and other formats. The presence of the detaching layer, i.e. release layer, (a) causes the subsequent layers (b)-(h) to detach from the carrier film 1 and to be applied and adhered, by means of the adhesive layer h) , on the target substrate 2 to be protected.
Since the present invention has been disclosed herein as an exemplary, but not limitative, embodiment, it is understood that the present invention maybe subject to a number of modifications and variants, all of which fall within the scope of invention expressed in the appended claims, while the technical details may vary according to the particular need and the state of the art.

Claims

CIAIMS
1. A multilayer anti-counterfeit device comprising:
- a carrier layer (1) ; a layer (a) of release lacquer permitting the detaching of the subsequent layers; an anti-scratch layer (b) made of lacquers resisting to scratches; a durable layer (c) resisting to chemical attaches; a layer (d) made of embossing lacquer; a metalized reflecting layer (e) ; one or more barrier layers (g) made of durable lacquers; - an adhesive layer (h) ; and a sub layer (2) for the application of said counter- counterfeit device, characterized in that layer (d) is of a continuous type and one or more layers (f) provided with registered prints and/or graphisms placed among metalized reflecting layers (e) , located only at not diffractive zones which do not correspond with holographic or not holographic areas, and barrier layers (g) located below and in alignment with said reflecting or not reflecting layers.
2. A multilayer anti-counterfeit device in accordance with claim 1, characterized in that a window or area through which the underlying print (f) formed among the various holographic or not holographic diffractive areas can be seen in transparence..
3.A multilayer anti-counterfeit device in accordance with claims 1 and 2, characterized in that layer (f) interested by registered prints and/or graphisms bears prints made with normally visible pigments and dyes, inks which are visible under ultraviolet and/or infrared light, thermo-chromic pigments, photo-chromic pigments, iridescent and optically variable or not variable pigments.
4.A multilayer anti-counterfeit device in accordance with claims 1 to 3, characterized in that the embossing lacquer layer (d) is applied in a discontinuous and localized manner, and the layers (f) , bearing registered prints and/or graphisms, arranged among the metalized reflecting layers (e) and localized only not in correspondence with diffractive holographic or not holographic areas, extend into the discontinuous spaces free from embossing lacquer ( d ) .
5.A multilayer anti-counterfeit device in accordance with claims 1 to 3, characterized in that the metalized reflecting layer (e) is transparent or semi-transparent and between it and the barrier layer (g) a further layer (e' ) is inserted so as to partially or totally cover the holographic area bearing the printed graphisms so that they are visible through the transparent or semi-transparent metalized layer
(e) .
6. Security support protected by an anti- counterfeit device in accordance with one or more of the claims 1 to 5.
PCT/IT2010/000211 2009-05-27 2010-05-13 Anti-counterfeit device for valuable documents WO2010137049A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP10736810.2A EP2435255B1 (en) 2009-05-27 2010-05-13 Anti-counterfeit device for valuable documents
MX2011012564A MX2011012564A (en) 2009-05-27 2010-05-13 Anti-counterfeit device for valuable documents.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI2009A000931A IT1395094B1 (en) 2009-05-27 2009-05-27 ANTI-COUNTERFEITING DEVICE FOR VALUE DOCUMENTS AND ITS SAFETY SUPPORT
ITMI2009A000931 2009-05-27

Publications (1)

Publication Number Publication Date
WO2010137049A1 true WO2010137049A1 (en) 2010-12-02

Family

ID=41690701

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IT2010/000211 WO2010137049A1 (en) 2009-05-27 2010-05-13 Anti-counterfeit device for valuable documents

Country Status (4)

Country Link
EP (1) EP2435255B1 (en)
IT (1) IT1395094B1 (en)
MX (1) MX2011012564A (en)
WO (1) WO2010137049A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2484537B1 (en) 2011-02-02 2016-04-06 Giesecke&Devrient Authentication of security documents by means of photochromic dyes

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU176237U1 (en) * 2017-07-28 2018-01-12 Акционерное общество "Гознак" (АО "Гознак") MULTILAYER LAMINATING STRUCTURE

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5575507A (en) * 1989-01-31 1996-11-19 Dai Nippon Insatsu Kabushiki Kaisha Heat transfer recording media
WO2005043254A1 (en) * 2003-10-30 2005-05-12 Centro Grafico Dg S.P.A. Method of personalizing metallic holographic layers applicable on substrates
EP1780040A2 (en) * 2005-10-25 2007-05-02 JDS Uniphase Corporation Patterned optical structures with enhanced security feature
WO2007135496A2 (en) * 2006-05-18 2007-11-29 Centro Grafico Dg S.P.A. Anti-tampering method applicable to data associated to products or documents, anti-tampering device thereof and kit for reading data on said device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5575507A (en) * 1989-01-31 1996-11-19 Dai Nippon Insatsu Kabushiki Kaisha Heat transfer recording media
WO2005043254A1 (en) * 2003-10-30 2005-05-12 Centro Grafico Dg S.P.A. Method of personalizing metallic holographic layers applicable on substrates
EP1780040A2 (en) * 2005-10-25 2007-05-02 JDS Uniphase Corporation Patterned optical structures with enhanced security feature
WO2007135496A2 (en) * 2006-05-18 2007-11-29 Centro Grafico Dg S.P.A. Anti-tampering method applicable to data associated to products or documents, anti-tampering device thereof and kit for reading data on said device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2484537B1 (en) 2011-02-02 2016-04-06 Giesecke&Devrient Authentication of security documents by means of photochromic dyes

Also Published As

Publication number Publication date
ITMI20090931A1 (en) 2010-11-28
MX2011012564A (en) 2012-02-23
EP2435255B1 (en) 2013-07-03
IT1395094B1 (en) 2012-09-05
EP2435255A1 (en) 2012-04-04

Similar Documents

Publication Publication Date Title
EP1809486B1 (en) Security device and security support comprising same
EP1497141B1 (en) Transparent security substrate with magnetic particles
TWI509374B (en) A security device formed by a hologram and a color shifting ink
TWI474934B (en) Hot stamp adhesive with optical effect pigment
CA2738850C (en) Card with embedded security element
JP5675972B2 (en) Security document with holographic foil and printed machine-readable marking
TW201607790A (en) Transfer film and manufacturing method thereof
CA2832294C (en) A security document and a manufacturing method thereof
KR20140023248A (en) Security label or adhesive tape with evidence of tampering
EP2331344B1 (en) Identification document comprising a security pattern
CN101640004A (en) Holographic dealuminized composite film material and anti-counterfeiting object
JP2023113602A (en) Laminate, certificate, and method for manufacturing laminate
EP2435255B1 (en) Anti-counterfeit device for valuable documents
GB2546975A (en) Methods of manufacturing security structures for security documents
WO2012035546A2 (en) A tamper evident multiple metallized and demetallized security device and process for preparing the same
JP2013091203A (en) Image organizer, personal authentification medium, and method for manufacturing personal authentification medium
JP2004004252A (en) Medium for confirming authenticity
RU2791765C1 (en) Multi-layer structure for protecting identification documents and identification document
WO2023200369A1 (en) Multi-layered structure for protecting identification documents
CN112912254B (en) Optical display, page pair, printed product, passport, card, paper money, label, sign, and bill
JP5621308B2 (en) Anti-counterfeit media

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 10736810

Country of ref document: EP

Kind code of ref document: A1

WWE Wipo information: entry into national phase

Ref document number: MX/A/2011/012564

Country of ref document: MX

NENP Non-entry into the national phase

Ref country code: DE

WWE Wipo information: entry into national phase

Ref document number: 2010736810

Country of ref document: EP

WWE Wipo information: entry into national phase

Ref document number: 9408/CHENP/2011

Country of ref document: IN