EP2550166B1 - Security paper, security document or similar and production method therefor - Google Patents

Security paper, security document or similar and production method therefor Download PDF

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Publication number
EP2550166B1
EP2550166B1 EP11709644.6A EP11709644A EP2550166B1 EP 2550166 B1 EP2550166 B1 EP 2550166B1 EP 11709644 A EP11709644 A EP 11709644A EP 2550166 B1 EP2550166 B1 EP 2550166B1
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EP
European Patent Office
Prior art keywords
optical structure
window
security
carrier
upper side
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.)
Not-in-force
Application number
EP11709644.6A
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German (de)
French (fr)
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EP2550166A1 (en
Inventor
Andreas Rauch
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.)
Giesecke and Devrient GmbH
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Giesecke and Devrient GmbH
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Publication of EP2550166A1 publication Critical patent/EP2550166A1/en
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Publication of EP2550166B1 publication Critical patent/EP2550166B1/en
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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
    • B42D25/351—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
    • B42D25/328—Diffraction gratings; Holograms
    • 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
    • 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
    • B42D25/355—Security threads
    • B42D2033/06—
    • B42D2035/36—

Definitions

  • the invention relates to security documents of value documents, comprising a carrier having a front side and a rear side, a lamination applied to the carrier and an optical structure comprising an upper side, a lower side and an optical element, and which generates a motif visually perceptible from the upper side ,
  • the invention further relates to a manufacturing method for security papers, documents of value, in which a front and a back having carrier is provided, an optical structure is provided, which comprises a top, a bottom and an optical element, and a visually from the top produces perceptible feature, and on the carrier a lamination is applied.
  • Items to be protected are often provided with a security element that allows verification of the authenticity of the item and at the same time serves as protection against unauthorized reproduction.
  • Items to be protected include, for example, security papers, identity and value documents (such as bank notes, chip cards, passports, identification cards, identity cards, stocks, bonds, certificates, vouchers, Checks, tickets, credit cards, health cards, Among others, product security elements such as labels, seals, packaging.
  • identity and value documents such as bank notes, chip cards, passports, identification cards, identity cards, stocks, bonds, certificates, vouchers, Checks, tickets, credit cards, health cards, .
  • product security elements such as labels, seals, packaging.
  • the security against forgery of a security element is particularly great when the security element shows perceptible motifs that are generated by an optical effect that can not be reproduced with a copied motif.
  • a combination of microstructure elements with overlying microlenses has proved to be particularly tamper-proof, which images the microstructure elements in an enlarged manner.
  • Moire effect can be used.
  • Such security elements are therefore also referred to as "modulo mapping” or "moiré magnifier".
  • An exemplary description of such a security element can be found in the WO 2008/031170 A1 according to which the microlenses and the microstructures are produced by using an embossable lacquer.
  • Such optical structures can not be reproduced with conventional copying processes, since the optical imaging can be designed in particular as dependent on the viewing angle. For example, an orthoparallactic effect is known.
  • optical elements for example in the form of said microlens, are necessary.
  • Their imaging effect usually requires that the optical elements, such as the microlenses, have an uneven surface. The front of the optical structure is therefore usually not plan. Unwanted reproduction of the optical elements by molding the surface can therefore not be ruled out.
  • DE 4334847 A1 describes a document of value according to the preamble of claim 1 with a window over which a transmissive effective diffractive security element, which may have a diffraction structure, is arranged.
  • a similar structure is from the DE 102004014778 A1 .
  • DE 102007023560 A1 such as WO 2006/021551 A2 are known, each arranging in transmission, diffractive structures in a banknote over a window.
  • the invention is therefore the object of developing a security element of the type mentioned so that the security against counterfeiting is increased.
  • a security paper, document of value has a carrier having a front and a back, a lamination applied to the carrier and an optical structure comprising an optical element having a bottom and a top, and produces a visually perceptible from the top motif, wherein the carrier has at least one window, the optical structure is placed on the back of the carrier on the window, with its top to the front, so that the subject from the front through the window Visible visually, and the lamination is attached to the back and covers the optical structure at the bottom.
  • a manufacturing method for security papers, documents of value according to claim 5. There is provided a front and a back having carrier, an optical structure provided comprising a microstructure and an optical element and having a top and a bottom, and a visually perceivable from this top creates a motif, and it is applied to the support a lamination, wherein the provided support has at least one window or is provided with at least one window, the optical structure is placed on the back of the carrier over the window, wherein the optical structure with its upper side faces the front, so that the motif is visually perceptible from the front through the window, and the lamination on the back of the carrier and the optical structure is attached to the underside overlapping.
  • the different sides of the carrier and the optical structure are distinguished by different terms.
  • the carrier has a front and a back, the optical structure has a top and a bottom.
  • This choice of terminology serves the conceptual distinction of the top surfaces of the support and optical structure and is otherwise not intended to represent a technical limitation.
  • the invention thus provides that the optical structure that generates the particularly forgery-proof motif is applied to the back of the security element so that its top and thus the motif generated by the optical structure through a window in the security element when viewed from the front of the security element are visible. At the same time from the back of the carrier forth the optical element through the lamination covered.
  • This construction makes it possible to embed the optical element (for example comprising a moiré magnifier or a modulo mapper or other optically active structures) in a security element.
  • the underside of the optical structure is covered, allowing access for unauthorized reproduction, e.g. B. by impression, difficult.
  • the underside of the optical structure is further protected against mechanical influence and chemical influence.
  • the top of the optical structure This is located in the window and can therefore be molded only very difficult. At the same time it is against pollution or similar. protected, which in particular provided at the top optical elements that protrude spatially, z. B. microlens elements, is advantageous.
  • the optical structure has optical elements on its upper side. These optical elements are a microlens array that interacts with underlying microstructures viewed from the top. In this way, a moiré magnifier or a modulo-mapping element like it can out WO 2009/000528 is known to be realized in the optical structure. According to experience, such elements are particularly tamper-proof. With regard to the 3D structure, in particular the structure that is used in the DE 10 2009 056 934 is disclosed.
  • microstructures For increased security against counterfeiting, it is possible to colorize or colorize microstructures that are embedded on the underside of the optical structure by the lamination. This can be done by color fill, as in WO 2005/052650 described, micro gravure, as in DE 10 2006 029 852 described, or done by filling with nanoparticles or nanostructures. It is also possible to provide microstructures with a transparent or semitransparent metallization or with a layer system which effects viewing-angle-dependent color properties (so-called color shift). It is also possible to embed the microstructures with a lacquer system which has a refractive index difference of at least 0.3 between the microstructures and the embedding.
  • the optical structure can be particularly preferably provided in the form of a separately prepared strip, which is then applied to the carrier.
  • a further security element in this strip in addition to the optical structure at other locations, e.g. an additional hologram. This is only visible from the back, as it is not over the window.
  • a strip may be used which has a plurality of optical structures, if appropriate in the carrier correspondingly more windows are formed.
  • the overlapping of the optical structure according to the invention on the back side of the carrier has, as a further advantage, that such a strip can be printed well, since a uniform pressure-accepting layer is available.
  • the security element can be used in particular as a security thread, tear-open thread, security strip, security strip, patch or as a label for application be formed on a security paper, value document or the like.
  • security paper is understood here in particular as the precursor that can not be processed to a value document which, in addition to the security element according to the invention, may also have further authenticity features (such as, for example, luminescent substances provided in the volume).
  • Value documents are here understood, on the one hand, documents produced from security papers.
  • value documents can also be other documents and objects which can be provided with the security feature according to the invention, so that the value documents have non-copyable authenticity features, whereby an authenticity check is possible and at the same time unwanted copies are prevented.
  • the production method according to the invention can be developed so that the described preferred embodiments and embodiments of the security element are produced.
  • Fig. 1 shows in plan view a banknote 1, seen from the front side 2 of.
  • a motif 3 can be seen, which is located in a window 4 of the banknote 1.
  • Fig. 2 shows the banknote 1 from the back 5.
  • a strip 6 is applied, which covers, inter alia, the window 4.
  • This strip 6 comprises an optical structure, which is described below with reference to the sectional view of Fig. 3 which explains a section along the line AA the Fig. 2 shows. The position of the optical structure and thus of the window 4 is shown in dashed lines in the figure.
  • the banknote 1 is constructed on a carrier 7 into which the window 4 is introduced (eg by punching), preferably after a foil has been laminated onto the front side 2. However, this lamination is only required if a corresponding film is desired on the front. The structure of the front side 2 is otherwise irrelevant to the security element described here. Then, the strip 6 is applied to the rear side 5 of the carrier 7 such that the optical structure 8 comes to lie above the window 4.
  • the optical element 8 of the strip 6 is constructed as follows. It has on its upper side 15 microlenses 9, which were produced for example by embossing a suitable plastic layer.
  • the microlenses 9 are located above a spacer material 10, which is optically transparent and, for example, also realized by a plastic film.
  • Microstructure elements 11 are located on the rear side of underside 14 of optical element 8 opposite top side 15. The geometric arrangement or the design of microstructure elements 11 and the pattern in which microlenses 9 are arranged are matched to one another in such a way that they are viewed from the top gives a perceptible motif.
  • the optical element 8 can thus realize, for example, a known moiré magnifier.
  • the strip 6 is placed on the back 5 of the carrier 7 so that the optical structure 8 is placed with its upper side 15, ie the side with the microlenses 9, over the window, is on the back 5 a lamination by means of a Kaschierlacks 12 a and a film 13a provided.
  • These Lamination is applied to the back 5 so that the bottom 14 of the optical structure 8 is covered, so this is not exposed.
  • the lamination by means of laminating lacquer 12a and foil 13a can correspond to the lamination by means of laminating lacquer 12b and foil 13b on the front side 2 of the banknote 1.
  • Fig. 4 shows a sectional view similar to the Fig. 3 but along the BB line Fig. 2 ie, in a cutting plane which does not pass through the optical structure 8.
  • the strip 6 consists in these areas substantially exclusively of the film, which serves as a spacer 10 in the region of the optical structure.
  • a hologram structure 16 is formed on the film, which is visible from the back 5 of the banknote 1 with suitable transparency of the lamination (layers 12a and 13a). In this way, the strip 6 not only effects a motif visible on the front side, which is produced by the optical structure 8, but at the same time also a motif provided on the rear side by the hologram structure 16.

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  • Credit Cards Or The Like (AREA)
  • Holo Graphy (AREA)

Description

Die Erfindung bezieht sich auf Sicherheitspapieren Wertdokumente, mit einem eine Vorderseite und eine Rückseite aufweisenden Träger, einer auf den Träger aufgebrachten Kaschierung und einer Optikstruktur, die eine Oberseite, eine Unterseite und ein optisches Element umfasst, und die ein von der Oberseite visuell wahrnehmbares Motiv erzeugt.The invention relates to security documents of value documents, comprising a carrier having a front side and a rear side, a lamination applied to the carrier and an optical structure comprising an upper side, a lower side and an optical element, and which generates a motif visually perceptible from the upper side ,

Die Erfindung bezieht sich weiter auch auf ein Herstellungsverfahren für Sicherheitspapiere, Wertdokumente, bei dem ein eine Vorderseite und eine Rückseite aufweisender Träger bereitgestellt wird, eine Optikstruktur bereitgestellt wird, die eine Oberseite, eine Unterseite und ein optisches Element umfasst, und ein von der Oberseite visuell wahrnehmbares Merkmal erzeugt, und auf den Träger eine Kaschierung aufgebracht wird.The invention further relates to a manufacturing method for security papers, documents of value, in which a front and a back having carrier is provided, an optical structure is provided, which comprises a top, a bottom and an optical element, and a visually from the top produces perceptible feature, and on the carrier a lamination is applied.

Zu schützende Gegenstände werden häufig mit einem Sicherheitselement ausgestattet, das eine Überprüfung der Echtheit des Gegenstandes erlaubt und zugleich als Schutz vor unerlaubter Reproduktion dient.Items to be protected are often provided with a security element that allows verification of the authenticity of the item and at the same time serves as protection against unauthorized reproduction.

Zu schützende Gegenstände sind beispielsweise Sicherheitspapiere, Ausweis- und Wertdokumente (wie z.B. Banknoten, Chipkarten, Pässe, Identifikationskarten, Ausweiskarten, Aktien, Anleihen, Urkunden, Gutscheine, Schecks, Eintrittskarten, Kreditkarten, Gesundheitskarten, ...) sowie Produktsicherungselemente, wie z.B. Etiketten, Siegel, Verpackungen.Items to be protected include, for example, security papers, identity and value documents (such as bank notes, chip cards, passports, identification cards, identity cards, stocks, bonds, certificates, vouchers, Checks, tickets, credit cards, health cards, ...) as well as product security elements such as labels, seals, packaging.

Die Fälschungssicherheit eines Sicherheitselementes ist dann besonders groß, wenn das Sicherheitselement wahrnehmbare Motive zeigt, die durch einen optischen Effekt erzeugt werden, der mit einem kopierten Motiv nicht reproduziert werden kann.The security against forgery of a security element is particularly great when the security element shows perceptible motifs that are generated by an optical effect that can not be reproduced with a copied motif.

Als besonders fälschungssicher hat sich eine Kombination von Mikrostrukturelementen mit darüberliegenden Mikrolinsen erwiesen, welche die Mikrostrukturelemente vergrößert abbilden. Hierbei kann der sogenannte Moire-Effekt verwendet werden. Solche Sicherheitselemente werden deshalb auch als "Modulo-Mapping" oder "Moiré-Magnifier" bezeichnet. Eine exemplarische Schilderung eines solchen Sicherheitselementes findet sich in der WO 2008/031170 A1 , gemäß der die Mikrolinsen und die Mikrostrukturen durch Verwendung eines prägbaren Lackes erzeugt werden. Derartige Optikstrukturen sind mit herkömmlichen Kopiervorgängen nicht reproduzierbar, da die optische Abbildung insbesondere blickwinkelabhängig gestaltet sein kann. Bekannt ist hierfür z.B. ein orthoparallaktischer Effekt.A combination of microstructure elements with overlying microlenses has proved to be particularly tamper-proof, which images the microstructure elements in an enlarged manner. Here, the so-called Moire effect can be used. Such security elements are therefore also referred to as "modulo mapping" or "moiré magnifier". An exemplary description of such a security element can be found in the WO 2008/031170 A1 according to which the microlenses and the microstructures are produced by using an embossable lacquer. Such optical structures can not be reproduced with conventional copying processes, since the optical imaging can be designed in particular as dependent on the viewing angle. For example, an orthoparallactic effect is known.

Für diese Fälschungssicherheit ist allerdings eine optische Abbildung erforderlich, weshalb optische Elemente, beispielsweise in Form der genannten Mikrolinse, nötig sind. Deren abbildende Wirkung bedingt in der Regel, dass die optischen Elemente, z.B. die Mikrolinsen, eine unebene Oberfläche haben. Die Vorderseite der Optikstruktur ist deshalb in der Regel nicht plan. Eine unerwünschte Reproduktion der optischen Elemente durch Abformen der Oberfläche ist deshalb nicht auszuschließen.For this security against counterfeiting, however, an optical image is required, which is why optical elements, for example in the form of said microlens, are necessary. Their imaging effect usually requires that the optical elements, such as the microlenses, have an uneven surface. The front of the optical structure is therefore usually not plan. Unwanted reproduction of the optical elements by molding the surface can therefore not be ruled out.

DE 4334847 A1 beschreibt ein Wertdokument nach dem Oberbegriff des Anspruchs 1 mit einem Fenster, über dem ein transmissiv wirksames diffraktives Sicherheitselement, das eine Diffraktionsstruktur aufweisen kann, angeordnet ist. Ein ähnlicher Aufbau ist aus den DE 102004014778 A1 , DE 102007023560 A1 sowie WO 2006/021551 A2 bekannt, die jeweils in Transmission wirksame, diffraktive Strukturen bei einer Banknote über einem Fenster anordnen. DE 4334847 A1 describes a document of value according to the preamble of claim 1 with a window over which a transmissive effective diffractive security element, which may have a diffraction structure, is arranged. A similar structure is from the DE 102004014778 A1 . DE 102007023560 A1 such as WO 2006/021551 A2 are known, each arranging in transmission, diffractive structures in a banknote over a window.

Aus der DE 102008029638 A1 ist ein Sicherheitselement mit einem Mikrolinsenarray bekannt.From the DE 102008029638 A1 a security element with a microlens array is known.

Der Erfindung liegt deshalb die Aufgabe zugrunde, ein Sicherheitselement der genannten Art so weiterzubilden, dass die Fälschungssicherheit erhöht ist.The invention is therefore the object of developing a security element of the type mentioned so that the security against counterfeiting is increased.

Diese Aufgabe wird gelöst durch ein Sicherheitspapier, Wertdokument gemäß Anspruch 1. Es hat einen eine Vorderseite und eine Rückseite aufweisenden Träger, eine auf den Träger aufgebrachte Kaschierung und eine Optikstruktur, die ein optisches Element umfasst, die eine Unter- und eine Oberseite aufweist, und ein von der Oberseite visuell wahrnehmbares Motiv erzeugt, wobei der Träger mindestens ein Fenster aufweist, die Optikstruktur an der Rückseite des Trägers über das Fenster gelegt ist, wobei sie mit ihrer Oberseite zur Vorderseite hin liegt, so dass das Motiv von der Vorderseite durch das Fenster visuell wahrnehmbar ist, und die Kaschierung auf der Rückseite angebracht ist und die Optikstruktur an deren Unterseite überdeckt.This object is achieved by a security paper, document of value according to claim 1. It has a carrier having a front and a back, a lamination applied to the carrier and an optical structure comprising an optical element having a bottom and a top, and produces a visually perceptible from the top motif, wherein the carrier has at least one window, the optical structure is placed on the back of the carrier on the window, with its top to the front, so that the subject from the front through the window Visible visually, and the lamination is attached to the back and covers the optical structure at the bottom.

Die Aufgabe wird ebenfalls gelöst durch ein Herstellungsverfahren für Sicherheitspapiere, Wertdokumente gemäß Anspruch 5. Es wird ein eine Vorderseite und eine Rückseite aufweisender Träger bereitgestellt, eine Optikstruktur bereitgestellt, die eine Mikrostruktur und ein optisches Element umfasst und eine Ober- und eine Unterseite aufweist, und ein von dieser Oberseite aus visuell wahrnehmbares Motiv erzeugt, und es wird auf den Träger eine Kaschierung aufgebracht, wobei der bereitgestellte Träger mindestens ein Fenster aufweist oder mit mindestens einem Fenster versehen wird, die Optikstruktur an der Rückseite des Trägers über das Fenster gelegt wird, wobei die Optikstruktur mit ihrer Oberseite zur Vorderseite hinweisend liegt, so dass das Motiv von der Vorderseite durch das Fenster visuell wahrnehmbar ist, und die Kaschierung auf der Rückseite des Trägers und die Optikstruktur an deren Unterseite überdeckend angebracht wird.The object is also achieved by a manufacturing method for security papers, documents of value according to claim 5. There is provided a front and a back having carrier, an optical structure provided comprising a microstructure and an optical element and having a top and a bottom, and a visually perceivable from this top creates a motif, and it is applied to the support a lamination, wherein the provided support has at least one window or is provided with at least one window, the optical structure is placed on the back of the carrier over the window, wherein the optical structure with its upper side faces the front, so that the motif is visually perceptible from the front through the window, and the lamination on the back of the carrier and the optical structure is attached to the underside overlapping.

In der nachfolgenden Beschreibung der Erfindung sowie in der oben stehenden Definition der Erfindung werden die unterschiedlichen Seiten des Trägers und der Optikstruktur durch verschiedene Begriffe unterschieden. Der Träger hat eine Vorder- und eine Rückseite, die Optikstruktur eine Ober- und eine Unterseite. Diese Begriffswahl dient der begrifflichen Unterscheidung der Deckflächen von Träger und Optikstruktur und soll ansonsten keine technische Einschränkung bedeuten.In the following description of the invention and in the above definition of the invention, the different sides of the carrier and the optical structure are distinguished by different terms. The carrier has a front and a back, the optical structure has a top and a bottom. This choice of terminology serves the conceptual distinction of the top surfaces of the support and optical structure and is otherwise not intended to represent a technical limitation.

Die Erfindung sieht also vor, dass die Optikstruktur, welche das besonders fälschungssichere Motiv erzeugt, auf der Rückseite des Sicherheitselementes so aufgebracht wird, dass ihre Oberseite und damit das von der Optikstruktur erzeugte Motiv durch ein Fenster im Sicherheitselement bei Betrachtung von der Vorderseite des Sicherheitselementes aus sichtbar sind. Zugleich ist von der Rückseite des Trägers her das Optikelement durch die Kaschierung abgedeckt. Dieser Aufbau erlaubt es, das Optikelement (beispielsweise umfassend einen Moiré-Magnifier oder einen Modulo-Mapper oder andere optisch wirksame Strukturen) in ein Sicherheitselement einzubetten. Die Unterseite der Optikstruktur ist abgedeckt, was einen Zugriff für unerlaubte Reproduktion, z. B. durch Abformung, erschwert. Die Unterseite der Optikstruktur ist weiter dadurch gegen mechanische Beeinflussung und chemische Beeinflussung geschützt.The invention thus provides that the optical structure that generates the particularly forgery-proof motif is applied to the back of the security element so that its top and thus the motif generated by the optical structure through a window in the security element when viewed from the front of the security element are visible. At the same time from the back of the carrier forth the optical element through the lamination covered. This construction makes it possible to embed the optical element (for example comprising a moiré magnifier or a modulo mapper or other optically active structures) in a security element. The underside of the optical structure is covered, allowing access for unauthorized reproduction, e.g. B. by impression, difficult. The underside of the optical structure is further protected against mechanical influence and chemical influence.

Das Gleiche gilt für die Oberseite der Optikstruktur. Diese liegt im Fenster und kann somit ebenfalls nur sehr erschwert abgeformt werden. Zugleich ist sie gegen Verschmutzung o.ä. geschützt, was insbesondere bei an der Oberseite vorgesehenen optischen Elementen, die räumlich vorstehen, z. B. bei Mikrolinsenelementen, vorteilhaft ist.The same applies to the top of the optical structure. This is located in the window and can therefore be molded only very difficult. At the same time it is against pollution or similar. protected, which in particular provided at the top optical elements that protrude spatially, z. B. microlens elements, is advantageous.

Die Optikstruktur weist an ihrer Oberseite optische Elemente auf. Bei diesen optischen Elementen handelt es sich um ein Mikrolinsenarray, das mit von der Oberseite aus gesehen darunterliegenden Mikrostrukturen zusammenwirkt. Auf diese Weise kann ein Moiré-Magnifier oder ein Modulo-Mapping-Element, wie es aus WO 2009/000528 bekannt ist, in der Optikstruktur realisiert werden. Derartige Elemente sind erfahrungsgemäß besonders fälschungssicher. Hinsichtlich der 3D-Struktur kann insbesondere die Struktur verwendet werden, die in der DE 10 2009 056 934 offenbart ist.The optical structure has optical elements on its upper side. These optical elements are a microlens array that interacts with underlying microstructures viewed from the top. In this way, a moiré magnifier or a modulo-mapping element like it can out WO 2009/000528 is known to be realized in the optical structure. According to experience, such elements are particularly tamper-proof. With regard to the 3D structure, in particular the structure that is used in the DE 10 2009 056 934 is disclosed.

Zur gesteigerten Fälschungssicherheit ist es möglich, Mikrostrukturen, die an der Unterseite der Optikstruktur durch die Kaschierung eingebettet sind, farbig auszugestalten oder einzufärben. Dies kann durch Farbfüllung, wie in WO 2005/052650 beschrieben, Mikrotiefdruck, wie in DE 10 2006 029 852 beschrieben, oder durch Füllen mit Nanopartikeln oder Nanostrukturen geschehen. Auch ist es möglich, Mikrostrukturen mit einer transparenten oder semitransparenten Metallisierung oder mit einem Schichtsystem zu versehen, das blickwinkelabhängige Farbeigenschaften bewirkt (sogenannter Color-Shift). Weiter ist es möglich, die Mikrostrukturen mit einem Lacksystem einzubetten, welches zwischen den Mikrostrukturen und der Einbettung einen Brechungsindexunterschied von mindestens 0,3 aufweist.For increased security against counterfeiting, it is possible to colorize or colorize microstructures that are embedded on the underside of the optical structure by the lamination. This can be done by color fill, as in WO 2005/052650 described, micro gravure, as in DE 10 2006 029 852 described, or done by filling with nanoparticles or nanostructures. It is also possible to provide microstructures with a transparent or semitransparent metallization or with a layer system which effects viewing-angle-dependent color properties (so-called color shift). It is also possible to embed the microstructures with a lacquer system which has a refractive index difference of at least 0.3 between the microstructures and the embedding.

Die Optikstruktur kann besonders bevorzugt in Form eines separat hergestellten Streifens vorgesehen werden, der dann auf dem Träger aufgebracht wird. Zur weiteren Fälschungssicherheit ist es dabei von Vorteil, neben der Optikstruktur auch noch an anderen Stellen ein weiteres Sicherheitselement in diesem Streifen vorzusehen, z.B. ein zusätzliches Hologramm. Dieses ist dann nur von der Rückseite aus sichtbar, da es sich nicht über dem Fenster befindet.The optical structure can be particularly preferably provided in the form of a separately prepared strip, which is then applied to the carrier. For further protection against counterfeiting, it is advantageous to provide a further security element in this strip in addition to the optical structure at other locations, e.g. an additional hologram. This is only visible from the back, as it is not over the window.

Natürlich kann auch ein Streifen verwendet werden, der mehrere Optikstrukturen aufweist, wenn im Träger dazu passend entsprechende mehrere Fenster ausgebildet sind.Of course, a strip may be used which has a plurality of optical structures, if appropriate in the carrier correspondingly more windows are formed.

Die erfindungsgemäße Überdeckung der Optikstruktur an der Rückseite des Trägers hat als weiteren Vorteil, dass ein solcher Streifen gut bedruckbar ist, da eine einheitliche Druckannahmeschicht zur Verfügung steht.The overlapping of the optical structure according to the invention on the back side of the carrier has, as a further advantage, that such a strip can be printed well, since a uniform pressure-accepting layer is available.

Das Sicherheitselement kann insbesondere als Sicherheitsfaden, Aufreißfaden, Sicherheitsband, Sicherheitsstreifen, Patch oder als Etikett zum Aufbringen auf ein Sicherheitspapier, Wertdokument oder dergleichen ausgebildet sein.The security element can be used in particular as a security thread, tear-open thread, security strip, security strip, patch or as a label for application be formed on a security paper, value document or the like.

Unter dem Begriff Sicherheitspapier wird hier insbesondere die noch nicht umlauffähige Vorstufe zu einem Wertdokument verstanden, die neben dem erfindungsgemäßen Sicherheitselement beispielsweise auch weitere Echtheitsmerkmale (wie z.B. im Volumen vorgesehene Lumineszenzstoffe) aufweisen kann. Unter Wertdokumenten werden hier einerseits aus Sicherheitspapieren hergestellte Dokumente verstanden. Andererseits können Wertdokumente auch sonstige Dokumente und Gegenstände sein, die mit dem erfindungsgemäßen Sicherheitsmerkmal versehen werden können, damit die Wertdokumente nicht kopierbare Echtheitsmerkmale aufweisen, wodurch eine Echtheitsüberprüfung möglich ist und zugleich unerwünschte Kopien verhindert werden.The term security paper is understood here in particular as the precursor that can not be processed to a value document which, in addition to the security element according to the invention, may also have further authenticity features (such as, for example, luminescent substances provided in the volume). Value documents are here understood, on the one hand, documents produced from security papers. On the other hand, value documents can also be other documents and objects which can be provided with the security feature according to the invention, so that the value documents have non-copyable authenticity features, whereby an authenticity check is possible and at the same time unwanted copies are prevented.

Das erfindungsgemäße Herstellungsverfahren kann so weitergebildet werden, dass die beschriebenen bevorzugten Ausbildungen und Ausführungsformen des Sicherheitselementes hergestellt werden.The production method according to the invention can be developed so that the described preferred embodiments and embodiments of the security element are produced.

Es versteht sich, dass die vorstehend genannten und die nachstehend noch zu erläuternden Merkmale nicht nur in den angegebenen Kombinationen, sondern auch in anderen Kombinationen oder in Alleinstellung einsetzbar sind, ohne den Rahmen der vorliegenden Erfindung zu verlassen.It is understood that the features mentioned above and those yet to be explained below can be used not only in the specified combinations but also in other combinations or alone, without departing from the scope of the present invention.

Nachfolgend wird die Erfindung beispielshalber anhand der beigefügten Zeichnungen, die auch erfindungswesentliche Merkmale offenbaren, noch näher erläutert ist. Es zeigen:

Fig. 1
eine Draufsicht einer Banknote mit einem Sicherheitselement 1 von der Vorderseite,
Fig. 2
eine Draufsicht von der Rückseite,
Fig. 3
einen Schnitt entlang der Linie A-A der Fig. 2 und
Fig. 4
einen Schnitt entlang der Linie B-B der Fig. 2.
The invention will be explained in more detail by way of example with reference to the accompanying drawings, which also disclose features essential to the invention. Show it:
Fig. 1
a top view of a banknote with a security element 1 from the front,
Fig. 2
a top view from the back,
Fig. 3
a section along the line AA the Fig. 2 and
Fig. 4
a section along the line BB of Fig. 2 ,

Die Figuren sind zur besseren Darstellbarkeit nicht maßstabstreu dargestellt. Ferner sind teilweise Schraffuren nicht eingezeichnet, um den Aufbau des entsprechenden Sicherheitselementes übersichtlicher darstellen zu können. Im Übrigen tragen Elemente, die sich in verschiedenen Ausführungsformen funktionell und/ oder strukturell gleichen oder entsprechen, in allen Figuren jeweils dasselbe Bezugszeichen, um Beschreibungswiederholungen zu vermeiden. In der Beschreibung wird eine Seite als Vorderseite, die andere als Rückseite bezeichnet. Zur Unterscheidung wird eine Seite einer Optikstrüktur als Unterseite, die andere als Oberseite bezeichnet. Diese Konvention dient lediglich dem einfacheren Verständnis und soll keine Einschränkung hinsichtlich Aufbau und/oder Anwendung des Sicherheitselementes sein.The figures are not shown to scale for ease of illustration. Furthermore, partial hatching is not shown in order to be able to present the structure of the corresponding security element in a clearer manner. Incidentally, elements which in different embodiments functionally and / or structurally resemble or correspond to the same reference numerals in all figures in order to avoid repeated descriptions. In the description, one side is referred to as the front side, the other side as the back side. For distinction, one side of an optics structure is referred to as the underside, the other as the top side. This convention is merely for ease of understanding and is not intended to be limiting as to the construction and / or application of the security element.

Fig. 1 zeigt in Draufsicht eine Banknote 1, von deren Vorderseite 2 aus gesehen. Auf der Vorderseite 2 der Banknote 1 ist ein Motiv 3 erkennbar, das sich in einem Fenster 4 der Banknote 1 befindet. Fig. 1 shows in plan view a banknote 1, seen from the front side 2 of. On the front side 2 of the banknote 1, a motif 3 can be seen, which is located in a window 4 of the banknote 1.

Fig. 2 zeigt die Banknote 1 von deren Rückseite 5. Auf diese Rückseite 5 ist ein Streifen 6 aufgebracht, der unter anderem das Fenster 4 überdeckt. Dieser Streifen 6 umfasst eine Optikstruktur, die nachfolgend anhand der Schnittdarstellung der Fig. 3 erläutert wird, welche einen Schnitt entlang der Linie A-A der Fig. 2 zeigt. Die Lage der Optikstruktur und damit des Fensters 4 ist gestrichelt in die Figur eingetragen. Fig. 2 shows the banknote 1 from the back 5. On this back 5, a strip 6 is applied, which covers, inter alia, the window 4. This strip 6 comprises an optical structure, which is described below with reference to the sectional view of Fig. 3 which explains a section along the line AA the Fig. 2 shows. The position of the optical structure and thus of the window 4 is shown in dashed lines in the figure.

Die Banknote 1 ist auf einem Träger 7 aufgebaut, in den das Fenster 4 eingebracht wird (z. B. durch Stanzen), vorzugsweise nachdem auf die Vorderseite 2 eine Folie aufkaschiert wurde. Diese Kaschierung ist jedoch nur dann erforderlich, wenn an der Vorderseite eine entsprechende Folie gewünscht wird. Die Struktur der Vorderseite 2 ist ansonsten ohne Belang für das hier beschriebene Sicherheitselement. Dann wird an der Rückseite 5 des Trägers 7 der Streifen 6 derart aufgebracht, dass die Optikstruktur 8 über dem Fenster 4 zu liegen kommt.The banknote 1 is constructed on a carrier 7 into which the window 4 is introduced (eg by punching), preferably after a foil has been laminated onto the front side 2. However, this lamination is only required if a corresponding film is desired on the front. The structure of the front side 2 is otherwise irrelevant to the security element described here. Then, the strip 6 is applied to the rear side 5 of the carrier 7 such that the optical structure 8 comes to lie above the window 4.

Das Optikelement 8 des Streifens 6 ist wie folgt aufgebaut. Es weist an seiner Oberseite 15 Mikrolinsen 9 auf, die beispielsweise durch Prägen einer geeigneten Kunststoffschicht erzeugt wurden. Die Mikrolinsen 9 befinden sich über einem Abstandsmaterial 10, das optisch transparent ist und beispielsweise ebenfalls durch eine Kunststofffolie realisiert ist. An der Rückseite der der Oberseite 15 gegenüberliegenden Unterseite 14 des Optikelementes 8 befinden sich Mikrostrukturelemente 11. Die geometrische Anordnung bzw. die Ausbildung der Mikrostrukturelemente 11 und das Muster, in dem die Mikrolinsen 9 angeordnet sind, sind so aufeinander abgestimmt, dass sich bei der Betrachtung von der Oberseite ein wahrnehmbares Motiv ergibt. Das Optikelement 8 kann so beispielsweise einen bekannten Moiré-Magnifier realisieren.The optical element 8 of the strip 6 is constructed as follows. It has on its upper side 15 microlenses 9, which were produced for example by embossing a suitable plastic layer. The microlenses 9 are located above a spacer material 10, which is optically transparent and, for example, also realized by a plastic film. Microstructure elements 11 are located on the rear side of underside 14 of optical element 8 opposite top side 15. The geometric arrangement or the design of microstructure elements 11 and the pattern in which microlenses 9 are arranged are matched to one another in such a way that they are viewed from the top gives a perceptible motif. The optical element 8 can thus realize, for example, a known moiré magnifier.

Nachdem der Streifen 6 an der Rückseite 5 des Trägers 7 so aufgelegt ist, dass die Optikstruktur 8 mit ihrer Oberseite 15, d.h. der Seite mit den Mikrolinsen 9, über das Fenster gelegt ist, wird auf der Rückseite 5 eine Kaschierung mittels eines Kaschierlacks 12a sowie einer Folie 13a vorgesehen. Diese Kaschierung wird so auf die Rückseite 5 aufgebracht, dass die Unterseite 14 der Optikstruktur 8 überdeckt ist, diese also nicht frei liegt. Die Kaschierung mittels Kaschierlack 12a und Folie 13a kann dabei der Kaschierung mittels Kaschierlack 12b und Folie 13b an der Vorderseite 2 der Banknote 1 entsprechen.After the strip 6 is placed on the back 5 of the carrier 7 so that the optical structure 8 is placed with its upper side 15, ie the side with the microlenses 9, over the window, is on the back 5 a lamination by means of a Kaschierlacks 12 a and a film 13a provided. These Lamination is applied to the back 5 so that the bottom 14 of the optical structure 8 is covered, so this is not exposed. The lamination by means of laminating lacquer 12a and foil 13a can correspond to the lamination by means of laminating lacquer 12b and foil 13b on the front side 2 of the banknote 1.

Fig. 4 zeigt eine Schnittdarstellung ähnlich der Fig. 3, jedoch entlang der Linie B-B der Fig. 2, d.h. in einer Schnittebene, welche nicht durch die Optikstruktur 8 läuft. Wie Fig. 4 zeigt, besteht der Streifen 6 in diesen Bereichen im Wesentlichen ausschließlich aus der Folie, welche im Bereich der Optikstruktur als Abstandshalter 10 dient. Zusätzlich ist an der Folie noch eine Hologrammstruktur 16 ausgebildet, die bei geeigneter Transparenz der Kaschierung (Schichten 12a und 13a) von der Rückseite 5 der Banknote 1 her sichtbar ist. Der Streifen 6 bewirkt auf diese Art und Weise nicht nur ein an der Vorderseite sichtbares Motiv, welches durch die Optikstruktur 8 erzeugt wird, sondern zugleich auch ein an der Rückseite durch die Hologrammstruktur 16 bereitgestelltes Motiv. Fig. 4 shows a sectional view similar to the Fig. 3 but along the BB line Fig. 2 ie, in a cutting plane which does not pass through the optical structure 8. As Fig. 4 shows, the strip 6 consists in these areas substantially exclusively of the film, which serves as a spacer 10 in the region of the optical structure. In addition, a hologram structure 16 is formed on the film, which is visible from the back 5 of the banknote 1 with suitable transparency of the lamination (layers 12a and 13a). In this way, the strip 6 not only effects a motif visible on the front side, which is produced by the optical structure 8, but at the same time also a motif provided on the rear side by the hologram structure 16.

Claims (8)

  1. A security paper or value document with
    - a carrier (7) having a front side (2) and a back side (5),
    - a lamination (13a, 12a) applied to the carrier (7) and
    - an optical structure (8) which comprises an upper side (15) and a lower side (14) and an optical element (9) disposed on the upper side, and which produces a motif (3) that is visually perceptible from the upper side (15),
    - wherein the carrier (7) has at least a window (4),
    characterized in that
    - the optical structure (8) on its upper side (15) has a microlens array (9) and a microstructure (11) disposed thereunder when viewed from the upper side (15), said microstructure (11) producing the motif (3) together with the microlens array (9), wherein microlenses of the microlens array (9) are arranged in a pattern that is adapted to the microstructure (11),
    - the optical structure (8) on the back side (5) of the carrier (7) is placed with its upper side (15) over the window (4), so that the microlens array (9) is disposed in the window (4) and the motif (3) is visually perceptible from the front side (2) through the window (4), and
    - the lamination (13a, 12a) is applied to the back side (5) and covers the lower side (14) of the optical structure (8).
  2. The security paper or value document according to claim 1, wherein the optical structure (8) forms a moiré magnifier.
  3. The security paper or value document according to any of the above claims, wherein the optical structure (8) additionally comprises a hologram (16).
  4. The security paper or value document according to any of the above claims, wherein the optical structure (8) forms part of a strip (6) extending across the back side (5) of the security element (1).
  5. A manufacturing method for security papers or value documents, wherein
    - a carrier (7) is made available having a front side (2) and a back side (5),
    - an optical structure (8) is made available which comprises an upper side (15) and a lower side (14) and an optical element (9) disposed on the upper side (15), and which produces a motif (3) that is visually perceptible from the upper side (15),
    - a lamination (13a, 12a) is applied to the carrier (7),
    - the carrier (7) made available has at least a window (4) or is equipped with at least a window (4),
    characterized in that
    - the optical structure (8) is equipped on its upper side (15) with a microlens array (9) and with a microstructure (11) disposed thereunder when viewed from the upper side (15), said microstructure (11) generating the motif (3) together with the microlens array (9), wherein microlenses of the microlens array (9) are arranged in a pattern that is adapted to the microstructure 11,
    - the optical structure (8) on the back side (5) of the carrier (7) is placed with its upper side (15) over the window (4), so that the microlens array (9) is disposed in the window (4) and the motif (3) is visually perceptible from the front side (2) through the window (4), and
    - the lamination (13a, 12a) is applied to the back side (5) and so as to cover the lower side (14) of the optical structure (8).
  6. The manufacturing method according to claim 5, wherein the optical structure (8) is configured as moiré magnifier.
  7. The manufacturing method according to any of the claims 5 or 6, wherein the optical structure (8) is equipped additionally with a hologram (16).
  8. The manufacturing method according to any of the claims 5 to 7, wherein the optical structure (8) is configured in a strip (6) which is placed over the back side (5) of the security element (1).
EP11709644.6A 2010-03-24 2011-03-17 Security paper, security document or similar and production method therefor Not-in-force EP2550166B1 (en)

Applications Claiming Priority (2)

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DE102010012495A DE102010012495A1 (en) 2010-03-24 2010-03-24 Security element and manufacturing method therefor
PCT/EP2011/001329 WO2011116903A1 (en) 2010-03-24 2011-03-17 Security element and production method therefor

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EP2550166A1 EP2550166A1 (en) 2013-01-30
EP2550166B1 true EP2550166B1 (en) 2014-05-07

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EP (1) EP2550166B1 (en)
CN (1) CN102905910B (en)
DE (1) DE102010012495A1 (en)
ES (1) ES2471074T3 (en)
HK (1) HK1176333A1 (en)
RU (1) RU2560298C2 (en)
WO (1) WO2011116903A1 (en)

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PL3421253T3 (en) 2017-06-28 2020-01-31 Hid Global Rastede Gmbh Thermochromic window
RU192370U1 (en) * 2019-03-01 2019-09-13 Николай Григорьевич Ляпко Reflexology applicator

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DE4334847A1 (en) * 1993-10-13 1995-04-20 Kurz Leonhard Fa Value document with window
PL2335943T3 (en) 2003-11-21 2015-02-27 Visual Physics Llc Micro-optic security and image presentation system
DE102004014778A1 (en) * 2004-03-26 2005-10-13 Leonard Kurz Gmbh & Co. Kg Security and / or value document
DE102004041828A1 (en) * 2004-08-27 2006-03-23 Bundesdruckerei Gmbh Security feature for a value and security document and corresponding document
DE102006029852A1 (en) 2006-06-27 2008-01-03 Giesecke & Devrient Gmbh Method of applying a microstructure, mold and microstructured article
CA2881437C (en) 2006-09-15 2018-11-27 Innovia Security Pty Ltd Radiation curable embossed ink security devices for security documents
DE102007023560B4 (en) * 2007-05-21 2009-02-05 Ovd Kinegram Ag Multi-layer body
DE102007029203A1 (en) 2007-06-25 2009-01-08 Giesecke & Devrient Gmbh security element
DE102008029638A1 (en) * 2008-06-23 2009-12-24 Giesecke & Devrient Gmbh security element
DE102009056934A1 (en) 2009-12-04 2011-06-09 Giesecke & Devrient Gmbh Security element, value document with such a security element and manufacturing method of a security element

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EP2550166A1 (en) 2013-01-30
DE102010012495A1 (en) 2011-09-29
WO2011116903A1 (en) 2011-09-29
ES2471074T3 (en) 2014-06-25
CN102905910B (en) 2016-02-17
RU2012145009A (en) 2014-04-27
HK1176333A1 (en) 2013-07-26
RU2560298C2 (en) 2015-08-20

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