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EP2913197B1 - Support d'informations protégé contre les contrefaçons - Google Patents

Support d'informations protégé contre les contrefaçons Download PDF

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Publication number
EP2913197B1
EP2913197B1 EP13848518.0A EP13848518A EP2913197B1 EP 2913197 B1 EP2913197 B1 EP 2913197B1 EP 13848518 A EP13848518 A EP 13848518A EP 2913197 B1 EP2913197 B1 EP 2913197B1
Authority
EP
European Patent Office
Prior art keywords
graphic elements
data carrier
image
elements
transparent
Prior art date
Legal status (The legal status 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 status listed.)
Revoked
Application number
EP13848518.0A
Other languages
German (de)
English (en)
Other versions
EP2913197A1 (fr
EP2913197A4 (fr
Inventor
Arkadiy Vladimirovich Trachuk
Andrey Borisovich Kuryatnikov
Alexey Mikhailovich Goncharov
Alexandr Georgievich Pisarev
Georgiy Valentinovich KORNILOV
Elena Mikhailovna Fedorova
Alexandr Igorevich MOCHALOV
Igor Vasilievich Pavlov
Galina Sergeevna Baranova
Anna Menashevna Rytikova
Alexandra Alexandrovna TORGASHOVA
Alexey Borisovich SOROKIN
Marina Eduardovna SNEGIRYOVA
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.)
Goznak JSC
Original Assignee
Goznak JSC
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=49884717&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP2913197(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Goznak JSC filed Critical Goznak JSC
Publication of EP2913197A1 publication Critical patent/EP2913197A1/fr
Publication of EP2913197A4 publication Critical patent/EP2913197A4/fr
Application granted granted Critical
Publication of EP2913197B1 publication Critical patent/EP2913197B1/fr
Revoked legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B42D25/30—Identification or security features, e.g. for preventing forgery
    • B42D25/342—Moiré effects
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M3/00—Printing processes to produce particular kinds of printed work, e.g. patterns
    • B41M3/14—Security printing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • 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
    • B42D25/351—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
    • B42D25/373—Metallic 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
    • B42D25/382—Special inks absorbing or reflecting infrared light
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/30—Identification or security features, e.g. for preventing forgery
    • B42D25/36—Identification or security features, e.g. for preventing forgery comprising special materials
    • B42D25/378—Special inks
    • B42D25/387—Special inks absorbing or reflecting ultraviolet light
    • 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
    • B42D25/405—Marking
    • B42D25/43—Marking by removal of material
    • B42D25/435—Marking by removal of material using electromagnetic radiation, e.g. laser
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
    • D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
    • D21H21/40—Agents facilitating proof of genuineness or preventing fraudulent alteration, e.g. for security paper
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
    • D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
    • D21H21/40—Agents facilitating proof of genuineness or preventing fraudulent alteration, e.g. for security paper
    • D21H21/44—Latent security elements, i.e. detectable or becoming apparent only by use of special verification or tampering devices or methods
    • D21H21/48—Elements suited for physical verification, e.g. by irradiation

Definitions

  • the invention relates to counterfeit-protected data carriers for protecting against counterfeit printed products, such as security papers, bank notes, identity documents, both paper and polymer based.
  • a method for manufacturing security papers disclosed in DE 3208204 A1 relates to the protection against unauthorized copying by offset printing.
  • Data carrier is a transparent paper or another transparent carrier material with periodic or almost periodic patterns consisting of dots or lines applied to both sides thereof.
  • images on the front and reverse sides of the carrier are precisely registered using two-sided printing machines. Therefore, this method provides for a periodic structure of lines, which has the appearance of fine lines when the structure is properly correlated in transmitted light, but moire patterns appear at a slight displacement of the structure in a case of forgery.
  • a security element which comprises: an optical system, comprising: a transparent or translucent substrate (2), on the side of a first surface (2a, 2b) of the substrate (2) is a combined image (I) comprising a plurality of encoded interleaved images (II), a exposing screen (4) placed on top of the combined image, enabling the encoded images (I1) to be observed during a change in the direction of observing the security element (1) relative to the optical system, the exposing screen (4) being: located on the side of the first surface (2a, 2b), the combined image then being located between the exposing screen (4) and the substrate (2), in which case the security element (1) comprises, on the side of the second surface (2a, 2b), a reflective surface that enables the encoded images (I1) to be observed through exposing screen (4).
  • the similar design of security device for authenticating documents and valuable products is known from US 2010/314861A1 , the security device may be applied to any support, including transparent synthetic materials and traditional opaque materials such as paper, wherein a compound layer incorporated into a valuable item to be protected from counterfeits comprises a base layer of given layout parameters, a revealing layer of given layout parameters and a gap between them.
  • US 6 494 491B1 An object with a surface region that generates an optical effect having the purpose of increasing proof against counterfeit is disclosed in US 6 494 491B1 , wherein the surface region that generates the optical effect exhibits at least two image patterns (12, 14) separated distance (d) from each other by means of a transparent layer of material (10) and, upon altering viewing angle ([alpha]), the perceived overall image formed by the overlapping of the image patterns (12, 14) is altered, and the distance (d) between the image patterns (12, 14) defined by a thickness of the material layer (10) and distance (a) between two neighboring image elements (16) forming the image patterns (12, 14) are adjusted with respect to each other such that the image patterns (12, 14) exhibit moire interference effects.
  • a data carrier ( WO 00/20216A1 ), the data carrier having a printed image that is produced by means of a gravure process.
  • the printed image comprises at least one first colour surface with a first colour coating thickness and a second colour surface adjacent to the first colour surface and provided with a second colour coating thickness, whereby the thicknesses of the two colour coatings are different.
  • the first and second colour surfaces are divided by a sharp borderline that is invisible to the naked eye and the colour coating thickness of both colour surfaces corresponds to a minimum thickness in the region of the borderline.
  • US2006/151989A1 discloses a security device comprising a sheet including: a reflective layer; a substantially transparent or translucent layer, the layers being in permanently fixed disposition to each other within the sheet; a blind embossed transitory image formed through the substantially transparent or translucent layer onto the reflective layer, at least part of which is visible through the transparent or translucent layer at least at some viewing angles.
  • Document 2386544 C1, 20.04.2010 discloses a security element for printed products, comprising a multilayer transparent polymer film with a first screened image formed on the upper surface of the upper layer of the film, having a resolution of the same order of magnitude as the film thickness, and a second screened image formed on the lower surface of one of underlying layers of the polymeric film and/or on the surface of the product being protected, on which the security element is positioned, and the second screened image is positioned such that when viewed in reflected light at different angles or in transmitted light, the image gradually changes from positive to negative or vice versa, wherein the first and second screened image is transparent and/or translucent, and/or reflective and/or luminescent, and/or embossed.
  • a method of manufacturing the security element comprises applying images to the surface of film layers by methods of local carbonization and/or laser beam engraving in surface layers of the film having a thickness of 1-10 ⁇ m, and/or by thermal diffusion copying methods.
  • the object of the invention is to enhance the security of products through the use of high-resolution images that are infeasible by digital printing devices and commercial printing, and to provide a novel variable optical effect and/or motion effect, as well as to improve the production effectiveness and reduce the cost of the security element owing to forming the screen by printing.
  • the object is attained owing to the features set forth in claim 1.
  • Preferred embodiments of the inventive data carrier are defined in dependent claims.
  • a counterfeit-protected data carrier according to the invention is defined in claim 1.
  • the thickness of the transparent portion of the data carrier can range from 10 to 40 ⁇ m.
  • the transparent portion of the data carrier can be formed by a single layer or a multilayer polymer film, transparent or partially dyed in the bulk or on the surface; or a specially impregnated paper; or a filigree watermark.
  • the image can be formed by broken or curved lines, or dots, or strokes, or graphic primitives, or a combination thereof.
  • a counterfeit-protected data carrier may be produced by applying graphic elements in the form of a line screen to at least one transparent portion of the carrier to form a periodic structure, wherein the graphic elements are applied by printing to both sides of the carrier, and the elements are mutually arranged such that they form an image exhibiting an optically variable effect.
  • the graphic elements are applied by intaglio printing provided the following conditions are observed: the depth of engraving hatch should not exceed 14 ⁇ m and the width of the graphic elements should match the order of magnitude of the thickness of the data carrier.
  • the resulting data carrier must retain its flatness, and the thickness of the ink layer is in the range of from 3 to 9 ⁇ m.
  • Graphical elements are applied to the front side 8 by printing, while printing on the reverse side 7 is omitted; the graphical elements are produced by partial demetallization within the transparent material.
  • Example 1 ( Figs. 1, 2 , 3, 4 , 5, 6, 7, 8 , 9 ).
  • a counterfeit-protected data carrier ( FIG. 1 ) comprises a transparent portion 1, to which graphic elements 2 and 3 are applied by printing.
  • Graphic elements 2 comprise a background image ( Fig. 2 )
  • graphic elements 3 applied to the other side comprise a hidden image 4 and a background image 5 ( Fig. 3 ).
  • the inventive data carrier offers an optical variable effect.
  • Information displayed on the surface of the transparent portion is hidden in reflected light and visible in transmitted light. This allows both the machine- readable authenticity control and visual inspection of the carrier, while greatly enhancing the effectiveness of visual inspection.
  • the printed graphic elements of the claimed counterfeit-protected data carrier are high-resolution graphic elements, that are infeasible by digital printing devices and commercial printing; printing the elements does not require monitoring the accurate registration of the front and reverse sides, and the technological process is improved owing to the omission of additional steps, in particular, laser engraving, which reduces the cost of the counterfeit-protected data carrier.
  • Application of graphic elements by traditional printing does not require extra processing steps and additional equipment.
  • the invention can be used for protection against forgery of printed products, such as security papers, bank notes, identity documents, both paper and polymer-based; it ensures more efficient authenticity control of data carriers both visually and using an equipment.

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  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Electromagnetism (AREA)
  • General Health & Medical Sciences (AREA)
  • Optics & Photonics (AREA)
  • Toxicology (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Printing Methods (AREA)
  • Credit Cards Or The Like (AREA)

Claims (5)

  1. Support de données protégé contre la falsification ayant au moins une partie transparente (1) qui est formée par un film polymère monocouche ou multicouche, la partie transparente (1) comportant des éléments graphiques (2, 3) disposés sur ses deux côtés sous la forme d'une trame linéaire haute résolution, lesdits éléments graphiques (2, 3) formant une structure périodique, les éléments (2, 3) étant agencés mutuellement de sorte qu'ils forment une image qui est cachée lorsqu'elle est vue en lumière réfléchie et visible vu en lumière transmise; de plus, lorsqu'elle est regardée d'une direction différente sous une lumière transmise, l'image change de positif en négatif et inversement, et/ou la couleur de l'image change complètement ou partiellement, et/ou il apparaît un effet de mouvement de franges moirées monochromes ou multicolores ; les éléments graphiques (2, 3) sont des éléments graphiques imprimés, et la largeur des éléments graphiques (2, 3) et l'intervalle entre les éléments graphiques (2, 3) sont proportionnels à l'épaisseur du support de données, et l'épaisseur de la couche d'encre comprenant les éléments graphiques (2, 3) est situé dans la plage de 3 à 9 µm, caractérisé en ce que les éléments graphiques imprimés sont réalisés par un procédé d'impression en taille douce en assurant la planéité du support de données après impression.
  2. Support de données selon la revendication 1, caractérisé en ce que la partie transparente (1) du support de données formée par un film polymère monocouche ou multicouche est transparente ou partiellement colorée dans la masse ou sur la surface, ou partiellement dépourvue de métallisation ; ou un papier spécialement imprégné.
  3. Support de données selon la revendication 1 ou 2, caractérisé en ce que l'image est formée par des lignes brisées ou incurvées, ou des points, ou des traits, ou des primitives graphiques, ou une combinaison de celles-ci à condition que la résolution soit élevée.
  4. Support de données selon la revendication 1 ou 2, caractérisé en ce que lesdits éléments graphiques (2, 3) sur les faces avant et arrière sont lisibles par ordinateur au moins dans certaines zones.
  5. Support de données selon la revendication 1 ou 2, caractérisé en ce que lesdits éléments graphiques (2, 3) sont des éléments graphiques imprimés formés par un procédé d'impression en taille douce avec des encres spéciales et sont lisibles par ordinateur et/ou sont luminescentes sous lumière UV et/ou sont métamériques en infrarouge en présentant des caractéristiques optiques identiques en lumière du jour et une absorption différente en lumière IR.
EP13848518.0A 2012-10-23 2013-07-12 Support d'informations protégé contre les contrefaçons Revoked EP2913197B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
RU2012144911/05A RU2503767C1 (ru) 2012-10-23 2012-10-23 Носитель информации, защищенный от подделки, и способ его изготовления
PCT/RU2013/000600 WO2014065704A1 (fr) 2012-10-23 2013-07-12 Support d'informations protégé contre les contrefaçons et procédé de fabrication

Publications (3)

Publication Number Publication Date
EP2913197A1 EP2913197A1 (fr) 2015-09-02
EP2913197A4 EP2913197A4 (fr) 2016-09-14
EP2913197B1 true EP2913197B1 (fr) 2018-05-30

Family

ID=49884717

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13848518.0A Revoked EP2913197B1 (fr) 2012-10-23 2013-07-12 Support d'informations protégé contre les contrefaçons

Country Status (3)

Country Link
EP (1) EP2913197B1 (fr)
RU (1) RU2503767C1 (fr)
WO (1) WO2014065704A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2594280C2 (ru) * 2014-10-08 2016-08-10 Федеральное Государственное Унитарное Предприятие "Гознак" (Фгуп "Гознак") Многослойное защищенное от подделки изделие на полимерной основе
RU2605074C1 (ru) * 2015-06-26 2016-12-20 Акционерное общество "Гознак" (АО "Гознак") Защитный элемент для листового полиграфического изделия

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Publication number Priority date Publication date Assignee Title
WO1983000659A1 (fr) 1981-08-24 1983-03-03 Solomon, David, Henry Amelioration aux billets de banque et autres
WO2008006094A2 (fr) 2006-07-06 2008-01-10 Document Security Systems, Inc. cartes PLASTIFIÉES de sécurité
US20100314861A1 (en) 2009-06-15 2010-12-16 Ecole Polytechnique Federale De Lausanne (Epfl) Authentication with built-in encryption by using moire parallax effects between fixed correlated s-random layers
WO2011007343A1 (fr) 2009-07-17 2011-01-20 Arjowiggins Security Element de securite a effet de parallaxe
GB2480227A (en) 2010-03-01 2011-11-16 Rue De Int Ltd Optical security device with spaced microlines

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DE3208204C2 (de) 1982-03-06 1985-12-19 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V., 8000 München Druckverfahren zur Sicherung von Banknoten und Dokumenten gegen unbefugtes Nachmachen
DE19635761A1 (de) * 1996-09-03 1998-03-05 Giesecke & Devrient Gmbh Dokument mit moirE-erzeugender Rasterstruktur
EP0967091A1 (fr) * 1998-06-26 1999-12-29 Alusuisse Technology & Management AG Objet ayant un effet optique
DE19845436C5 (de) * 1998-10-02 2015-02-26 Giesecke & Devrient Gmbh Stichtiefdruckverfahren zum Drucken von aneinander grenzenden Farbflächen unterschiedlicher Farbschichtdicke, Datenträger mit im Stichtiefdruckverfahren erzeugtem Druckbild, Druckplatte und Verfahren zum Herstellen einer Druckplatte
RU2235021C2 (ru) * 2002-09-10 2004-08-27 Научно-исследовательский институт Гознака Носитель информации с оптически переменной структурой
NZ539221A (en) * 2002-10-07 2007-06-29 Note Printing Au Ltd Embossed optically variable devices
US7751608B2 (en) * 2004-06-30 2010-07-06 Ecole Polytechnique Federale De Lausanne (Epfl) Model-based synthesis of band moire images for authenticating security documents and valuable products
US7429062B2 (en) * 2002-10-30 2008-09-30 Xerox Corporation Anti-counterfeiting see-through moire security feature using frequency-varying patterns
DE102005028162A1 (de) * 2005-02-18 2006-12-28 Giesecke & Devrient Gmbh Sicherheitselement und Verfahren zu seiner Herstellung
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Publication number Priority date Publication date Assignee Title
WO1983000659A1 (fr) 1981-08-24 1983-03-03 Solomon, David, Henry Amelioration aux billets de banque et autres
WO2008006094A2 (fr) 2006-07-06 2008-01-10 Document Security Systems, Inc. cartes PLASTIFIÉES de sécurité
US20100314861A1 (en) 2009-06-15 2010-12-16 Ecole Polytechnique Federale De Lausanne (Epfl) Authentication with built-in encryption by using moire parallax effects between fixed correlated s-random layers
WO2011007343A1 (fr) 2009-07-17 2011-01-20 Arjowiggins Security Element de securite a effet de parallaxe
US20120182443A1 (en) 2009-07-17 2012-07-19 Arjowiggins Security Parallax effect security element
GB2480227A (en) 2010-03-01 2011-11-16 Rue De Int Ltd Optical security device with spaced microlines

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Title
"Intaglio (printmaking)", WIKIPEDIA, 15 February 2019 (2019-02-15), pages 1 - 4, XP055567918, Retrieved from the Internet <URL:https://en.wikipedia.org/wiki/lntaglio (printmaking>
"Taille-douce", WIKIPEDIA, 15 February 2019 (2019-02-15), pages 1 - 4, XP055567922, Retrieved from the Internet <URL:https://fr.wikipedia.orq/wiki/Taille-douce>
F.J.M WIJNEKUS ET AL.: "Elsevier 's Dictionary of the Printing and Allied Industries", SECOND REVISED AND ENLARGED EDITION, SECOND IMPRESSION, 1993, pages 158 - 327, XP055567916
LEACH R. H., ET AL.: "The Printing Ink Manual", 1993, article "Chapter 2", pages: 14, 15, 74, 76, 77, XP055567913

Also Published As

Publication number Publication date
EP2913197A1 (fr) 2015-09-02
WO2014065704A1 (fr) 2014-05-01
RU2503767C1 (ru) 2014-01-10
EP2913197A4 (fr) 2016-09-14

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