EP2886363B1 - Security element for security documents - Google Patents

Security element for security documents Download PDF

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Publication number
EP2886363B1
EP2886363B1 EP14004151.8A EP14004151A EP2886363B1 EP 2886363 B1 EP2886363 B1 EP 2886363B1 EP 14004151 A EP14004151 A EP 14004151A EP 2886363 B1 EP2886363 B1 EP 2886363B1
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EP
European Patent Office
Prior art keywords
motif
security
security element
structures
optically
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.)
Active
Application number
EP14004151.8A
Other languages
German (de)
French (fr)
Other versions
EP2886363A2 (en
EP2886363A3 (en
Inventor
Stefan Bichlmeier
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 Currency Technology GmbH
Original Assignee
Giesecke and Devrient GmbH
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Application filed by Giesecke and Devrient GmbH filed Critical Giesecke and Devrient GmbH
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Publication of EP2886363A3 publication Critical patent/EP2886363A3/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
    • B42D25/36—Identification or security features, e.g. for preventing forgery comprising special materials
    • B42D25/364—Liquid crystals
    • 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
    • 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
    • B42D25/324—Reliefs
    • 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
    • B42D25/346—Perforations
    • 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
    • B42D25/355—Security threads
    • 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
    • B42D25/40—Manufacture
    • B42D25/405—Marking
    • B42D25/425—Marking by deformation, e.g. embossing

Definitions

  • the invention relates to a security element for security papers, documents of value and other data carriers, wherein the security element consists of a substrate.
  • the substrate has a first motif-forming subregion with a first optically variable element that forms a first motif in the form of at least one pattern, character or coding, wherein the first optically variable element consists of a first type of embossed structures.
  • the substrate additionally has a second motif-forming partial area with a second optically recognizable element which forms a second motif in the form of at least one pattern, character or coding, wherein the second optically detectable element comprises either a second type of embossed structures or one in translucency identifiable area exists.
  • an optically variable element in particular a security element for a data carrier, with a substrate having a motif-forming portion with a first portion which is produced by intaglio printing, and a second portion which is not produced by intaglio printing, wherein the two portions can be visually perceived each as forward and / or backward, the optically perceptible and the haptic detectable impression of the first portion agree, as well as the visually perceptible and the haptic detectable impression of the second portion do not match.
  • the WO 2013/007374 A1 thus provides an optically variable element that is visually attractive due to the optically protruding and / or receding portions and in which the haptic detectable impression matches the optically perceivable impression only for the first portion and not for the second portion.
  • This variation of the haptic or tactile perception of the motivational Section generates a high recognition value and leads to an easy verifiability of the authenticity of the optically variable element.
  • the WO 2013/007374 A1 refers exclusively to haptic detectable or haptic detectable appearing, optically variable elements.
  • Level 1 security features security elements which attract the attention of the observer by means of a conspicuous visual appearance and enable the authentication of the associated value document are referred to as so-called "Level 1" security features.
  • these security features may correspond to other security features to facilitate matching between different motifs, e.g. to allow on a banknote.
  • the comparison of portraits that occur, for example, in intaglio printing, watermarks and / or film element should support the recognition and increase the security against counterfeiting.
  • the matching of effects e.g. It is well known to synchronize the color-shifting and motion effects between RollingStar security threads and Sicpa Spark OVMI elements.
  • all these matching options have in common that they take place among several security elements with one another, that these security elements provide the same appearance, and that the effects or security elements were produced using different techniques.
  • the visually perceptible impression of the first motif and the visually perceptible impression of the second motif match.
  • the second optically recognizable element consists of a second type of embossed structures
  • the first type of embossed structures and the second type of embossed structures are preferably shaped differently.
  • a translucent recognizable area in the sense of this invention is, for example, a perforation of the substrate, ie a region with a reduced Thickness of the substrate of the security element or a complete removal of the substrate.
  • a perforation is thus a partial material removal of the substrate, a reduction of the thickness of the substrate, for example in the form of a (real) watermark or even a hole in the substrate. This results in an increase in the light transmittance or the transparency of the substrate.
  • an area in translucency is recognizable if an opaque coating of the substrate arranged around this area is recessed in this area or at least partially removed from this area or replaced by a translucent coating.
  • the substrate must also be translucent at least within the region, for example by forming the substrate within the region from a transparent film or from a translucent paper.
  • An opaque coating is, for example, a metallization or a paint application of a non-glazing color.
  • An area recognizable in translucency is thus for example a so-called clear text or a demetallization, which can be produced, for example, subsequently by ablating the metal layer or the paint by means of laser radiation, washing processes or etching.
  • Translucency in the sense of this invention means that an object, such as the substrate or the plastic film, can transmit incident light in a certain proportion. If light strikes one side of the object, a certain portion of the light is transmitted to the other side of the object and exits there again. The greater the percentage of transmitted light relative to the incident light, the greater translucent is the object. If the percentage is at least. 90%, ie if the object allows the incident light to pass through almost unattenuated, as in the case of a window, the object is called transparent. On the other hand, an object which transmits less than 10% and preferably about 0% of the incident light, ie in which the amount of transmitted light relative to the incident light is low or near zero, is said to be opaque or non-translucent.
  • An optically variable element in the sense of this invention is an element whose visual appearance changes upon tilting of the element. For example, when the optically variable element is tilted, its color changes, a bar appears to move from one side of the element to another, tilting displays different characters, or a so-called pumping effect appears as an enlarging or contracting outline of an image subject.
  • the visually perceptible impression of the first motif and the visually perceptible impression of the second motif match if both motifs show the same representation, for example the same portrait of a person, the same currency symbol or the same graphic image.
  • the first motif shows the head of a person in the profile of obliquely left in the form of a first type of embossing structures
  • the second motif also shows the head of the same person in the profile of obliquely left, but in the form of a second and the first kind of different kind of embossed structures.
  • the two different types of embossed structures can in this case to different tilting or movement effects within the subject lead, for example, to different color changes or pumping effects.
  • a coincidence of the motifs is for example also given when the first motif shows the head of a person in the profile of obliquely left in the form of a first type of embossed structures and the second motif is designed as a hole in the substrate, wherein the outline of the hole said person in the profile of diagonally left represents.
  • a comparison of representations such as e.g. Portraits, pictorial representations, currency symbols or the like, in various forms, but within a single security element, such as e.g. a security thread or a foil strip.
  • These representations have a different appearance in order to establish a technological barrier to counterfeiting for counterfeiters.
  • the abovementioned representations provide high recognition for the user of the document of value, that is, when compared with one another, are clearly identified as e.g. same portrait, pictorial representation or currency symbol recognized. It is therefore possible to additionally place representations on further security elements within the value document for the purpose of a more comprehensive comparison.
  • the security against counterfeiting is increased by providing at least three representations (in the simplest case according to the invention, two within one security element plus one on another security element of the value document) for adjustment by the user.
  • the second optically recognizable element likewise consists of embossed structures
  • these are embodied in a second type of embossed structures.
  • the first type of embossed structures and the second type of embossed structures are formed differently.
  • the first type of embossed structures is formed by a holographic grating and the second type of embossed structures by micromirrors.
  • both types of embossed structures were produced by, for example, a holographic grating, both types of embossed structures are not differently shaped and thus do not fall under the particularly preferred embodiment.
  • Security elements in which a combination of these techniques can be used according to the invention are, for example, film strips with carrier film (“L-lead”), film strips without carrier film (“T-lead”), foil patch, security threads, or hot stamped and treated with metallic paint holographic, Structures (direct embossing on polymer substrate) as well as imprints in UV lacquer on a polymer substrate, wherein the UV lacquer cures upon irradiation with electromagnetic radiation of ultraviolet wavelength.
  • imaging elements can additionally be combined with a thin-film vaporization to produce interference structures, a metallization (eg with Al, Cu, Ni, Fe, Zn), a coating with nematic and / or cholesteric liquid crystals or a glaze overprint Colours.
  • a metallization eg with Al, Cu, Ni, Fe, Zn
  • a coating with nematic and / or cholesteric liquid crystals or a glaze overprint Colours eg with Al, Cu, Ni, Fe, Zn.
  • Particularly advantageous is the execution of film strips and security threads as registered in the longitudinal direction or applied security element of a banknote.
  • a defined positioning of the imaging elements in the interplay along the banknote height is achieved.
  • These are, for example, images of a portrait visible in reflection, which is formed by micromirrors as a curvature portrait and always appears in the middle of the window of a security thread and images of the same visible in transmission portraits, which created as rastered Cleartext always appears under the paper webs of a security thread.
  • first motif-forming subregion and the second motif-forming subregion are arranged disjointly relative to one another, i. do not overlap.
  • the first and second motif-forming subregions have the same haptic effect. Unlike the WO 2013/007374 A1
  • the two motivating subregions not only have to produce the same visual impression of tactility, but also create the same haptic impression.
  • the motif-forming subareas must either all be palpable or not be felt. If, therefore, both motivating subareas appear tactile detectable for a viewer, both subareas must be either actually tactile detectable or surprisingly tactile not be detected. If, on the other hand, both motivating subareas do not appear to be tactile detectable for a viewer, then both subareas must either actually be tactile not detectable or surprisingly tactile detectable.
  • another security element is applied, which forms a third motif in the form of at least one pattern, character or a coding, wherein the visually perceptible impression of the third motif with the visually perceptible Impression of the first and second motive matches.
  • This further security element is arranged differently from the security element according to the invention and at another location on the security paper, value document or data carrier than the security element according to the invention. This additional security element thus results in an additional hurdle for a counterfeiter, which he must overcome in an adjustment of the security paper, value document or data carrier.
  • the first, second and optionally third motif form a portrait, a pictorial representation, a number or a currency symbol.
  • the substrate according to the invention can be embodied as a single-layer or multi-ply security paper.
  • Multi-ply security paper contains at least one ply of paper.
  • the further layers can likewise be made of paper, but also of other materials, for example by plastic films.
  • the security paper is particularly preferably made of cotton fibers, as used for example for banknotes.
  • the substrate may also be made of paper of other natural fibers, also preferably of synthetic fibers, a mixture of natural and synthetic fibers or also preferably of at least one plastic film.
  • the substrate consists of a combination of at least two superimposed and interconnected different substrates, a so-called hybrid, for example a combination of plastic film-paper-plastic film, i. a paper substrate is covered on either side by a plastic film, or paper plastic film paper, i. a substrate made of a plastic film is covered on each of its two sides by a paper substrate.
  • the font DE 102 43 653 A9 in particular states that the paper layer usually has a weight of 50 g / m 2 to 100 g / m 2 , preferably from 80 g / m 2 to 90 g / m 2 .
  • any suitable weight can be used.
  • Value documents for which such a substrate or security paper can be used are, in particular, banknotes, stocks, bonds, certificates, vouchers, checks, high-quality admission tickets, but also other papers which are subject to counterfeiting, such as passports and other identification documents, and also cards such as credit cards. or debit cards whose card body has at least one layer of security paper, and also product securing elements such as labels, seals, packages and the like.
  • security paper or value document includes all the above materials, documents and product securing means.
  • Fig. 1 shows a value document 5, for example, a banknote, on the surface of a security element 4 is applied.
  • the security element 4 is in this case designed as a film strip.
  • a first optically variable element 1 On the security element 4 is a first optically variable element 1, which consists of a first type of embossed structures.
  • the first type of embossed structures consists for example of an arrangement of micromirrors which are embossed into the surface of the security element 4.
  • a second optically variable element 2 which consists of a second type of embossed structures, is located on the security element 4.
  • the second type of embossed structures consists for example of an arrangement of microcavities that are embossed into the surface of the security element 4.
  • the second type of embossed structures differs from the first type of embossed structures, since the first type of embossed structures is formed by micromirrors, the second type of embossed structures, however, by microcavities.
  • the two optically variable elements 1 and 2 are both designed in the form of a five-pointed star, wherein both the surface of both stars and their geometric configuration match. Furthermore, the micromirrors of the first optically variable element 1 and the microcavities of the second optically variable element 2 are designed so that both show a similar color shift effect when the value document 5 is tilted. If the value document 5 is tilted, for example, about the axis A-A in the direction symbolized by the arrows, the optically variable element 1 shows a color change from green to gold and the optically variable element 2 from blue to gold. Of course, the two optically variable elements 1 and 2 can also show the same color change from green to gold or blue to gold. Instead of a color change, the optically variable element 1 can also show a dark bar in front of a green or blue background, which moves from left to right and back again when the value document 5 is tilted.
  • the visually perceptible impression of the two optically variable elements 1 and 2 thus corresponds in the sense of this invention.
  • Fig. 2 shows the value document 5 Fig.1 , wherein additionally on the value document, a further third security element 3 is applied.
  • This security element 3 is as well as the optically variable elements 1 and 2 in The shape of a five-pointed star, with its surface, its geometric design and thus its visually perceptible impression with the two stars Fig. 1 matches.

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  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Business, Economics & Management (AREA)
  • Accounting & Taxation (AREA)
  • Finance (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Credit Cards Or The Like (AREA)
  • Printing Methods (AREA)

Description

Die Erfindung betrifft ein Sicherheitselement für Sicherheitspapiere, Wertdokumente und andere Datenträger, wobei das Sicherheitselement aus einem Substrat besteht. Das Substrat weist einen ersten motivbildenden Teilbereich mit einem ersten optisch variablen Element auf, das ein erstes Motiv in Form mindestens eines Musters, Zeichens oder einer Codierung bildet, wobei das erste optisch variable Element aus einer ersten Art von Prägestrukturen besteht. Das Substrat weist zusätzlich einen zweiten motivbildenden Teilbereich mit einem zweiten optisch erkennbaren Element auf, das ein zweites Motiv in Form mindestens eines Musters, Zeichens oder einer Codierung bildet, wobei das zweite optisch erkennbare Element entweder aus einer zweiten Art von Prägestrukturen oder aus einem in Transluzenz erkennbaren Bereich besteht.The invention relates to a security element for security papers, documents of value and other data carriers, wherein the security element consists of a substrate. The substrate has a first motif-forming subregion with a first optically variable element that forms a first motif in the form of at least one pattern, character or coding, wherein the first optically variable element consists of a first type of embossed structures. The substrate additionally has a second motif-forming partial area with a second optically recognizable element which forms a second motif in the form of at least one pattern, character or coding, wherein the second optically detectable element comprises either a second type of embossed structures or one in translucency identifiable area exists.

Hierzu ist beispielsweise aus der WO 2013/007374 A1 ein optisch variables Element bekannt, insbesondere ein Sicherheitselement für einen Datenträger, mit einem Substrat, das einen motivbildenden Abschnitt mit einem ersten Teilbereich, der mittels Stichtiefdruck hergestellt ist, und einem zweiten Teilbereich, der nicht mittels Stichtiefdruck hergestellt ist, aufweist, wobei die beiden Teilbereiche optisch jeweils als vor- und/ oder zurückspringend wahrnehmbar sind, der optisch wahrnehmbare und der haptisch erfassbare Eindruck des ersten Teilbereiches übereinstimmen, sowie der optisch wahrnehmbare und der haptisch erfassbare Eindruck des zweiten Teilbereiches nicht übereinstimmen. Die WO 2013/ 007374 A1 stellt somit ein optisch variables Element bereit, das aufgrund der optisch vor- und/ oder zurückspringenden Teilbereiche optisch attraktiv ist und bei dem der haptisch erfassbare Eindruck mit dem optisch wahrnehmbaren Eindruck nur für den ersten Teilbereich und nicht für den zweiten Teilbereich übereinstimmt. Diese Variation der haptischen bzw. tastbaren Wahrnehmung des motivbildenden Abschnitts erzeugt einen hohen Wiedererkennungswert und führt zu einer leichten Verifizierbarkeit der Echtheit des optisch variablen Elementes.This is for example from the WO 2013/007374 A1 an optically variable element is known, in particular a security element for a data carrier, with a substrate having a motif-forming portion with a first portion which is produced by intaglio printing, and a second portion which is not produced by intaglio printing, wherein the two portions can be visually perceived each as forward and / or backward, the optically perceptible and the haptic detectable impression of the first portion agree, as well as the visually perceptible and the haptic detectable impression of the second portion do not match. The WO 2013/007374 A1 thus provides an optically variable element that is visually attractive due to the optically protruding and / or receding portions and in which the haptic detectable impression matches the optically perceivable impression only for the first portion and not for the second portion. This variation of the haptic or tactile perception of the motivational Section generates a high recognition value and leads to an easy verifiability of the authenticity of the optically variable element.

Die WO 2013/007374 A1 bezieht sich jedoch ausschließlich auf haptisch erfassbare bzw. haptisch erfassbar erscheinende, optisch variable Elemente.The WO 2013/007374 A1 However, refers exclusively to haptic detectable or haptic detectable appearing, optically variable elements.

Grundsätzlich werden Sicherheitselemente, die durch eine auffällige optische Erscheinung die Aufmerksamkeit des Betrachters auf sich ziehen und die Authentisierung des verbundenen Wertdokuments ermöglichen, als sogenannte "Level 1" Sicherheitsmerkmale bezeichnet. Bekanntlich können diese Sicherheitsmerkmale mit anderen Sicherheitsmerkmalen korrespondieren, um einen Abgleich zwischen verschiedenen Motiven z.B. auf einer Banknote zu ermöglichen. Insbesondere der Abgleich von Portraits, die beispielsweise im Stichtiefdruck, Wasserzeichen und/ oder Folienelement auftreten, sollen die Wiedererkennung unterstützen und die Fälschungssicherheit erhöhen. Auch der Abgleich von Effekten, wie z.B. die Synchronisierung von Farbkipp- und Bewegungseffekt zwischen RollingStar-Sicherheitsfäden und Sicpa Spark OVMI-Elementen ist bekannt. Allen diesen Abgleichmöglichkeiten ist jedoch gemeinsam, dass sie zwischen mehreren Sicherheitselementen untereinander stattfinden, dass diese Sicherheitselemente das gleiche Erscheinungsbild liefern und dass die Effekte bzw. Sicherheitselemente mit unterschiedlichen Techniken hergestellt wurden.In principle, security elements which attract the attention of the observer by means of a conspicuous visual appearance and enable the authentication of the associated value document are referred to as so-called "Level 1" security features. As is well known, these security features may correspond to other security features to facilitate matching between different motifs, e.g. to allow on a banknote. In particular, the comparison of portraits that occur, for example, in intaglio printing, watermarks and / or film element should support the recognition and increase the security against counterfeiting. Also the matching of effects, e.g. It is well known to synchronize the color-shifting and motion effects between RollingStar security threads and Sicpa Spark OVMI elements. However, all these matching options have in common that they take place among several security elements with one another, that these security elements provide the same appearance, and that the effects or security elements were produced using different techniques.

Um einen Abgleich zu ermöglichen, werden somit mehrere Sicherheitselemente in die Banknote eingebracht. Die Abstimmung des Erscheinungsbildes zwischen den erzeugten Elementen ist jedoch technologisch schwierig, da die dargestellten Abbildungen einen hohen Wiedererkennungswert besitzen müssen und somit bereits kleinste Unterschiede sofort erkennbar sind. Damit müssen hohe Anforderungen an die Erzeugung jedes einzelnen Elementes gestellt werden. Des Weiteren werden die dargestellten Abbildungen mit unterschiedlichen Technologien erzeugt, die einerseits ihre eigenen objektiven Abbildungseigenschaften besitzen und andererseits eigene subjektive Wahrnehmungen beim Betrachter erzeugen. Zusätzlich befinden sich die dargestellten Abbildungen auf Elementen, die von unterschiedlichen Produzenten im Herstellungsprozess des Wertdokumentes stammen. Beispielsweise werden Wasserzeichen und Folienapplikationen von einem Papier- bzw. Substrathersteller erzeugt, wohingegen ein mittels Stichtiefdruck auf das Substrat aufgedrucktes Portrait von einer Sicherheitsdruckerei erzeugt wird. Das Patentdokument DE 10 2011 120063 A1 offenbart die Merkmale der Oberbegriff des Anspruchs 1. Der Erfindung liegt deshalb die Aufgabe zugrunde, ein gattungsgemäßes Sicherheitselement derart weiterzubilden, dass die Nachteile des Standes der Technik behoben und der Schutz gegenüber Fälschungen weiter erhöht wird.In order to enable an adjustment, several security elements are thus introduced into the banknote. The coordination of the appearance between the generated elements, however, is technologically difficult, since the images shown must have a high recognition value and thus even the smallest differences are immediately recognizable. This requires high demands on the production of each individual element be put. Furthermore, the illustrations shown are generated using different technologies, which on the one hand have their own objective imaging properties and on the other hand generate their own subjective perceptions in the viewer. In addition, the illustrations shown are based on elements that originate from different producers in the manufacturing process of the value document. For example, watermarks and film applications are produced by a paper or substrate manufacturer, whereas a portrait printed on the substrate by intaglio printing is produced by a security printer. The patent document DE 10 2011 120063 A1 discloses the features of the preamble of claim 1. The invention is therefore the object of developing a generic security element such that the disadvantages of the prior art is eliminated and the protection against counterfeiting is further increased.

Diese Aufgabe wird durch die Merkmale der unabhängigen Ansprüche gelöst. Weiterbildungen der Erfindung sind Gegenstand der abhängigen Ansprüche.This object is solved by the features of the independent claims. Further developments of the invention are the subject of the dependent claims.

Erfindungsgemäß stimmen der optisch wahrnehmbare Eindruck des ersten Motivs und der optisch wahrnehmbare Eindruck des zweiten Motivs überein.According to the invention, the visually perceptible impression of the first motif and the visually perceptible impression of the second motif match.

Besteht das zweite optisch erkennbare Element aus einer zweiten Art von Prägestrukturen, sind bevorzugt die erste Art von Prägestrukturen und die zweite Art von Prägestrukturen unterschiedlich ausgeformt.If the second optically recognizable element consists of a second type of embossed structures, the first type of embossed structures and the second type of embossed structures are preferably shaped differently.

Ein in Transluzenz erkennbarer Bereich im Sinne dieser Erfindung ist beispielsweise eine Perforation des Substrats, d.h. ein Bereich mit einer verminderten Dicke des Substrats des Sicherheitselements oder einem vollständigen Abtrag des Substrats. Eine Perforation ist somit ein teilweiser Materialabtrag des Substrats, eine Verminderung der Dicke des Substrats beispielsweise in Form eines (echten) Wasserzeichens oder auch ein Loch im Substrat. Hierdurch ergibt sich eine Erhöhung der Lichtdurchlässigkeit bzw. der Durchsichtigkeit des Substrats.A translucent recognizable area in the sense of this invention is, for example, a perforation of the substrate, ie a region with a reduced Thickness of the substrate of the security element or a complete removal of the substrate. A perforation is thus a partial material removal of the substrate, a reduction of the thickness of the substrate, for example in the form of a (real) watermark or even a hole in the substrate. This results in an increase in the light transmittance or the transparency of the substrate.

Des Weiteren ist im Sinne dieser Erfindung ein Bereich in Transluzenz erkennbar, wenn eine um diesen Bereich herum angeordnete opake Beschichtung des Substrats in diesem Bereich ausgespart oder von diesem Bereich mindestens teilweise abgetragen wird oder durch eine transluzente Beschichtung ersetzt wird. Hierbei muss das Substrat mindestens innerhalb des Bereichs ebenfalls transluzent ausgebildet sein, beispielsweise, indem das Substrat innerhalb des Bereichs aus einer transparenten Folie oder aus einem transluzenten Papier gebildet wird.Furthermore, in the context of this invention, an area in translucency is recognizable if an opaque coating of the substrate arranged around this area is recessed in this area or at least partially removed from this area or replaced by a translucent coating. In this case, the substrate must also be translucent at least within the region, for example by forming the substrate within the region from a transparent film or from a translucent paper.

Eine opake Beschichtung ist beispielsweise eine Metallisierung oder ein Farbauftrag aus einer nichtlasierenden Farbe. Ein in Transluzenz erkennbarer Bereich ist damit beispielsweise ein sogenannter Cleartext oder eine Demetallisierung, der beispielsweise nachträglich durch Ablatieren der Metallschicht oder der Farbe mittels Laserstrahlung, Waschverfahren oder Ätzen erzeugt werden kann.An opaque coating is, for example, a metallization or a paint application of a non-glazing color. An area recognizable in translucency is thus for example a so-called clear text or a demetallization, which can be produced, for example, subsequently by ablating the metal layer or the paint by means of laser radiation, washing processes or etching.

Transluzenz im Sinne dieser Erfindung bedeutet, dass ein Objekt, wie das Substrat oder die Kunststofffolie, auftreffendes Licht in einem bestimmten Anteil hindurchtreten lässt. Trifft Licht auf eine Seite des Objekts auf, wird ein bestimmter Anteil des Lichtes bis zu der anderen Seite des Objekts hindurchgelassen und tritt dort wieder aus. Je größer der prozentuale Anteil des hindurchtretenden Lichtes bezogen auf das auftreffende Licht ist, desto transluzenter ist das Objekt. Liegt der prozentuale Anteil bei mindestens. 90 %, d.h. lässt das Objekt das auftreffende Licht wie bei einem Fenster nahezu ungeschwächt hindurchtreten, wird das Objekt als transparent bezeichnet. Ein Objekt hingegen, das weniger als 10 % und bevorzugt etwa 0 % des auftreffenden Lichtes hindurchtreten lässt, d.h. bei dem der Anteil des hindurchtretenden Lichtes bezogen auf das auftreffende Licht gering oder nahe oder gleich Null ist, wird als opak oder als nicht lichtdurchlässig bezeichnet.Translucency in the sense of this invention means that an object, such as the substrate or the plastic film, can transmit incident light in a certain proportion. If light strikes one side of the object, a certain portion of the light is transmitted to the other side of the object and exits there again. The greater the percentage of transmitted light relative to the incident light, the greater translucent is the object. If the percentage is at least. 90%, ie if the object allows the incident light to pass through almost unattenuated, as in the case of a window, the object is called transparent. On the other hand, an object which transmits less than 10% and preferably about 0% of the incident light, ie in which the amount of transmitted light relative to the incident light is low or near zero, is said to be opaque or non-translucent.

Ein optisch variables Element im Sinne dieser Erfindung ist ein Element, dessen visuelles Erscheinungsbild sich bei Verkippen des Elements ändert. Beispielsweise ändert sich bei Verkippen des optisch variablen Elements dessen Farbe, bewegt sich scheinbar ein Balken von einer Seite des Elements zu einer anderen Seite, werden beim Verkippen unterschiedliche Zeichen dargestellt oder ergibt sich ein sogenannter Pumpeffekt in Form einer sich vergrößernden oder verkleinernden Umrisslinie eines Bildmotivs.An optically variable element in the sense of this invention is an element whose visual appearance changes upon tilting of the element. For example, when the optically variable element is tilted, its color changes, a bar appears to move from one side of the element to another, tilting displays different characters, or a so-called pumping effect appears as an enlarging or contracting outline of an image subject.

Im Sinne dieser Erfindung stimmen der optisch wahrnehmbare Eindruck des ersten Motivs und der optisch wahrnehmbare Eindruck des zweiten Motivs überein, wenn beide Motive die gleiche Darstellung zeigen, beispielsweise das gleiche Portrait einer Person, das gleiche Währungssymbol oder die gleiche graphische Abbildung. Dies ist beispielsweise dann gegeben, wenn das erste Motiv den Kopf einer Person im Profil von schräg links in Form einer ersten Art von Prägestrukturen zeigt und das zweite Motiv den Kopf derselben Person ebenfalls im Profil von schräg links zeigt, allerdings in Form einer zweiten und von der ersten Art unterschiedlichen Art von Prägestrukturen. Die beiden unterschiedlichen Arten von Prägestrukturen können hierbei zu unterschiedlichen Kipp- oder Bewegungseffekten innerhalb des Motivs führen, beispielsweise zu unterschiedlichen Farbwechseln oder Pumpeffekten.For the purposes of this invention, the visually perceptible impression of the first motif and the visually perceptible impression of the second motif match if both motifs show the same representation, for example the same portrait of a person, the same currency symbol or the same graphic image. This is for example given when the first motif shows the head of a person in the profile of obliquely left in the form of a first type of embossing structures and the second motif also shows the head of the same person in the profile of obliquely left, but in the form of a second and the first kind of different kind of embossed structures. The two different types of embossed structures can in this case to different tilting or movement effects within the subject lead, for example, to different color changes or pumping effects.

Eine Übereinstimmung der Motive ist beispielsweise auch dann gegeben, wenn das erste Motiv den Kopf einer Person im Profil von schräg links in Form einer ersten Art von Prägestrukturen zeigt und das zweite Motiv als Loch im Substrat ausgeführt ist, wobei die Umrissform des Lochs die genannte Person im Profil von schräg links darstellt.A coincidence of the motifs is for example also given when the first motif shows the head of a person in the profile of obliquely left in the form of a first type of embossed structures and the second motif is designed as a hole in the substrate, wherein the outline of the hole said person in the profile of diagonally left represents.

Erfindungsgemäß erfolgt somit ein Abgleich von Darstellungen, wie z.B. Portraits, bildhaften Darstellungen, Währungssymbolen oder dergleichen, in unterschiedlichen Erscheinungsformen, aber innerhalb eines einzigen Sicherheitselementes, wie z.B. einem Sicherheitsfaden oder einem Folienstreifen. Diese Darstellungen weisen eine unterschiedliche Erscheinungsform auf, um für Fälscher eine technologische Hürde gegen Nachstellungen zu errichten. Gleichzeitig liefern die oben genannten Darstellungen hohe Wiedererkennbarkeit für den Benutzer des Wertdokumentes, werden also beim Vergleich untereinander eindeutig als z.B. gleiches Portrait, bildhafte Darstellung oder Währungssymbol erkannt. Es besteht somit die Möglichkeit, zusätzlich Darstellungen auf weiteren Sicherheitselementen innerhalb des Wertdokumentes zum Zweck eines umfassenderen Abgleichs zu platzieren. Hierdurch wird die Fälschungssicherheit gesteigert, indem mindestens drei Darstellungen (im einfachsten Fall erfindungsgemäß zwei innerhalb eines Sicherheitselementes plus eine auf einem weiteren Sicherheitselement des Wertdokumentes) für einen Abgleich durch den Benutzer zur Verfügung stehen.Thus, according to the invention, a comparison of representations, such as e.g. Portraits, pictorial representations, currency symbols or the like, in various forms, but within a single security element, such as e.g. a security thread or a foil strip. These representations have a different appearance in order to establish a technological barrier to counterfeiting for counterfeiters. At the same time, the abovementioned representations provide high recognition for the user of the document of value, that is, when compared with one another, are clearly identified as e.g. same portrait, pictorial representation or currency symbol recognized. It is therefore possible to additionally place representations on further security elements within the value document for the purpose of a more comprehensive comparison. As a result, the security against counterfeiting is increased by providing at least three representations (in the simplest case according to the invention, two within one security element plus one on another security element of the value document) for adjustment by the user.

Erfindungsgemäß wird innerhalb beispielsweise eines Folienstreifens oder Sicherheitsfadens ein in Reflexion sichtbares Element mithilfe unterschiedlicher Prägestrukturen mehrfach abgebildet. Diese Prägestrukturen können beispielhaft die folgenden Arten sein:

  • eine mit holographischen Gittern erzeugte Echtfarbendarstellung und eine mit Mikrospiegeln erzeugte dreidimensionale Darstellung oder
  • ein durch Gitterstrukturen erzeugtes achromatisches Portrait und ein Echtfarbenportrait oder
  • eine mit Mikrospiegeln erzeugte dreidimensionale Ziffer und eine mit Mottenaugenstrukturen erzeugte hochauflösende schwarze/metallische Ziffer oder
  • ein mit Subwellenlängengittern erzeugtes farbiges Währungsmotiv und ein mit Mikrokavitäten erzeugtes, achromatisches Währungsmotiv.
According to the invention, for example, within a film strip or security thread an element visible in reflection using different Embossed structures shown several times. These embossed structures may be exemplified by the following types:
  • a true color representation produced with holographic gratings and a three-dimensional representation generated with micromirrors or
  • an achromatic portrait produced by lattice structures and a true color portrait or
  • a three-dimensional digit created with micromirrors and a high-resolution black / metallic digit or moth-like generated with
  • a colored currency motif generated with subwavelength gratings, and an achromatic currency motive generated with microcavities.

Besteht das zweite optisch erkennbare Element ebenfalls aus Prägestrukturen, sind diese in einer zweiten Art von Prägestrukturen ausgeführt. Gemäß einer besonders bevorzugten Ausführungsform ist dabei vorgesehen, dass die erste Art von Prägestrukturen und die zweite Art von Prägestrukturen unterschiedlich ausgeformt sind. Dies bedeutet, dass beispielsweise die erste Art von Prägestrukturen durch ein holographisches Gitter und die zweite Art von Prägestrukturen durch Mikrospiegel gebildet wird. Würden hingegen beide Arten von Prägestrukturen durch beispielsweise ein holographisches Gitter erzeugt, sind beide Arten von Prägestrukturen nicht unterschiedlich ausgeformt und fallen somit nicht unter die besonders bevorzugte Ausführungsform.If the second optically recognizable element likewise consists of embossed structures, these are embodied in a second type of embossed structures. According to a particularly preferred embodiment, it is provided that the first type of embossed structures and the second type of embossed structures are formed differently. This means that, for example, the first type of embossed structures is formed by a holographic grating and the second type of embossed structures by micromirrors. If, on the other hand, both types of embossed structures were produced by, for example, a holographic grating, both types of embossed structures are not differently shaped and thus do not fall under the particularly preferred embodiment.

Gemäß einer bevorzugten Ausführungsform ist weiterhin vorgesehen, dass sich durch Kombination der folgenden Techniken eine Darstellung von Motiven mittels Prägung innerhalb eines Sicherheitsfadens oder Folienstreifens erzielen lässt, welche in Kombination untereinander die oben gestellte Aufgaben erfüllt:

  • eine Vielzahl von Mikrospiegeln, die ein gewölbtes bzw. dreidimensionales Bild darstellen oder
  • eine Vielzahl von Mikrospiegeln, die ein dunkles oder metallisches Pixelbild in hoher Auflösung zeigen oder
  • eine Vielzahl von Mikrokavitäten, die ein dunkles oder metallisches Pixelbild in hoher Auflösung zeigen oder
  • Mottenaugenstrukturen, d.h. Strukturen mit Abmessungen, die kleiner als die Wellenlänge des sichtbaren Lichts sind und die unregelmäßig auf einer Fläche angeordnet sind, die ein dunkles oder metallisches Pixelbild in hoher Auflösung zeigen oder
  • holographische Strukturen, insbesondere diffraktive Gitterlinien, die beispielsweise ein Stereogramm zeigen oder
  • holographische Strukturen, insbesondere diffraktive Gitterlinien, die beispielsweise eine Echtfarbendarstellung zeigen oder
  • holographische Strukturen, insbesondere diffraktive Gitterlinien, die pumpende oder laufende Effekte aufweisen oder
  • achromatische Strukturen, d.h. Mattstrukturen, die ein achromatisches Gitterbild zeigen oder
  • ein- und mehrdimensionale Subwellenlängengitter, d.h. Strukturen mit Abmessungen, die kleiner als die Wellenlänge des sichtbaren Lichts sind und die regelmäßig auf einer Fläche angeordnet sind, die eine Mehrfarbendarstellung in hoher Auflösung zeigen oder
  • Moiré-Magnifier oder Modulo-Mapper (wie sie beispielsweise aus WO 2009/000528 A1 bekannt sind), d.h. eine rasterartige Anordnung von Mikrolinsen, die über Mikromotivelementen oder Mikrostrukturen angeordnet sind und diese vergrößert abbilden oder ein zusammenhängendes größeres Bild ergeben oder
  • Kippbilder ohne eine vergrößerte Abbildung, wie beispielsweise Prägestrukturen mit einem farbigen oder metallischen Untergrund, die bei unterschiedlichen Betrachtungswinkeln unterschiedliche Abbildungen zeigen, oder
  • aus dem Stand der Technik bekannte sogenannte Blazed Gratings.
According to a preferred embodiment, it is further provided that, by combining the following techniques, a representation of motifs by embossing within a security thread or film strip can be achieved, which in combination with one another fulfills the tasks set out above:
  • a plurality of micromirrors that represent a domed or three-dimensional image or
  • a variety of micromirrors that show a high resolution, dark or metallic pixel image
  • a variety of microcavities that show a dark or metallic pixel image in high resolution or
  • Moth eye structures, ie structures with dimensions that are smaller than the wavelength of visible light and are arranged irregularly on a surface that show a dark or metallic pixel image in high resolution or
  • Holographic structures, in particular diffractive grating lines, for example, show a stereogram or
  • Holographic structures, in particular diffractive grating lines, for example, show a true color representation or
  • holographic structures, in particular diffractive grating lines, which have pumping or running effects or
  • achromatic structures, ie matte structures that show an achromatic lattice image or
  • single and multi-dimensional subwavelength gratings, ie, structures having dimensions smaller than the wavelength of visible light and regularly arrayed on a surface exhibiting high resolution multicolor representation
  • Moiré magnifier or modulo mapper (as for example WO 2009/000528 A1 are known), ie, a grid-like arrangement of microlenses, which are arranged on micromotif elements or microstructures and these magnified images or give a coherent larger image or
  • Tilting images without an enlarged image, such as embossed structures with a colored or metallic background, the different viewing angles show different pictures, or
  • known from the prior art so-called Blazed Gratings.

Sicherheitselemente, bei denen eine Kombination dieser Techniken erfindungsgemäß Verwendung finden kann, sind beispielsweise Folienstreifen mit Trägerfolie ("L-Lead"), Folienstreifen ohne Trägerfolie ("T-Lead"), Folienpatch, Sicherheitsfäden, oder heißgeprägte und mit metallischem Lack behandelte holographische, Strukturen (Direktprägung auf Polymersubstrat) sowie Prägungen in UV-Lack auf einem Polymersubstrat, wobei der UV-Lack bei Bestrahlung mit elektromagnetischer Strahlung mit ultravioletter Wellenlänge aushärtet.Security elements in which a combination of these techniques can be used according to the invention are, for example, film strips with carrier film ("L-lead"), film strips without carrier film ("T-lead"), foil patch, security threads, or hot stamped and treated with metallic paint holographic, Structures (direct embossing on polymer substrate) as well as imprints in UV lacquer on a polymer substrate, wherein the UV lacquer cures upon irradiation with electromagnetic radiation of ultraviolet wavelength.

Besonders vorteilhaft ist hierbei die Ausführung von Folienstreifen und Sicherheitsfäden als in Längsrichtung registriert ein- bzw. aufgebrachtes Sicherheitselement. Hierdurch wird eine definierte Positionierung der bildgebenden Elemente im Wechselspiel entlang der Banknotenhöhe erzielt.Particularly advantageous here is the execution of film strips and security threads as registered in the longitudinal direction on or applied security element. As a result, a defined positioning of the imaging elements in the interplay along the banknote height is achieved.

Alle oben genannten bildgebenden Elemente können zusätzlich kombiniert werden mit einer Bedampfung mit einer Dünnschicht zur Erzeugung von Interferenzstrukturen, einer Metallisierung (z.B. mit Al, Cu, Ni, Fe, Zn), einer Beschichtung mit nematischen und/ oder cholesterischen Flüssigkristallen oder einem Überdruck mit lasierenden Farben.All of the above-mentioned imaging elements can additionally be combined with a thin-film vaporization to produce interference structures, a metallization (eg with Al, Cu, Ni, Fe, Zn), a coating with nematic and / or cholesteric liquid crystals or a glaze overprint Colours.

Gemäß einer weiteren bevorzugten Ausführungsform ist vorgesehen, dass innerhalb eines Folienstreifens oder Sicherheitsfadens ein in Reflexion sichtbares Element und ein weiteres in Transmission sichtbares Element angeordnet sind, die das gleiche bzw. gleich erscheinende Motiv abbilden. Diese Elemente können beispielsweise sein:

  • ein mit holographischen Gittern erzeugtes Echtfarbenportrait und ein mit gerastertem Cleartext erzeugtes Demetallisierungsportrait,
  • eine mit Mikrospiegeln erzeugte dreidimensionale Darstellung, beispielsweise ein Wölbportrait, und ein in strichhafter Darstellung erzeugtes Demetallisierungsportrait,
  • ein mit Mikrospiegeln erzeugtes Wölbmotiv und ein in Durchsicht sichtbares, mit hochbrechenden Schichten beschichtetes Hologrammmotiv.
According to a further preferred embodiment, provision is made for a reflection-visible element and a further element visible in transmission to be arranged within a foil strip or security thread, which image represent the same or similar motif. These elements can be, for example:
  • a true color portrait produced with holographic grids and a demetallizing portrait produced with screened clear text,
  • a three-dimensional representation produced with micromirrors, for example a curving portrait, and a depiction of demetallization produced in a line representation,
  • a vaulted motif created with micromirrors and a hologram motif visible in phantom and coated with high-index layers.

Es lässt sich somit durch Kombination der oben genannten Techniken eine Darstellung von Motiven mittels Prägung innerhalb eines Sicherheitsfadens oder Folienstreifens erzielen, welche erfindungsgemäß in Kombination mit

  • durch Demetallisierung erzeugten Motiven,
  • negativ gedruckten Motiven,
  • Motiven, die von geprägten und mit hochbrechenden Schichten versehenen Strukturen gebildet werden,
  • Motiven, die von gedruckten Flüssigkristallen erzeugt werden, abgleichfähige Darstellungen in Reflexion und in Transmission liefern.
It can thus be achieved by combining the above techniques, a representation of motifs by embossing within a security thread or film strip, which inventively in combination with
  • by demetallization generated motifs,
  • negatively printed motifs,
  • Motifs formed by embossed structures with high refractive layers,
  • Motifs generated from printed liquid crystals that provide alignable representations in reflection and in transmission.

Besonders vorteilhaft ist die Ausführung von Folienstreifen und Sicherheitsfäden als in Längsrichtung registriert ein- bzw. aufgebrachtes Sicherheitselement einer Banknote. Hierdurch wird eine definierte Positionierung der bildgebenden Elemente im Wechselspiel entlang der Banknotenhöhe erzielt. Dies sind z.B. Abbildungen eines in Reflexion sichtbaren Portraits, welches von Mikrospiegeln als Wölbportrait gebildet und immer in der Fenstermitte eines Sicherheitsfadens erscheint und Abbildungen des gleichen in Transmission sichtbaren Portraits, welches als gerasterter Cleartext angelegt, immer unter den Papierstegen eines Sicherheitsfadens erscheint.Particularly advantageous is the execution of film strips and security threads as registered in the longitudinal direction or applied security element of a banknote. As a result, a defined positioning of the imaging elements in the interplay along the banknote height is achieved. These are, for example, images of a portrait visible in reflection, which is formed by micromirrors as a curvature portrait and always appears in the middle of the window of a security thread and images of the same visible in transmission portraits, which created as rastered Cleartext always appears under the paper webs of a security thread.

Gemäß einer weiteren bevorzugten Ausführungsform ist vorgesehen, dass der erste motivbildende Teilbereich und der zweite motivbildende Teilbereich disjunkt zueinander angeordnet sind, d.h. sich nicht überlappen.According to a further preferred embodiment, it is provided that the first motif-forming subregion and the second motif-forming subregion are arranged disjointly relative to one another, i. do not overlap.

Gemäß einer weiteren bevorzugten Ausführungsform ist vorgesehen, dass der erste und zweite motivbildende Teilbereich haptisch gleich wirken. Im Gegensatz zu der WO 2013/ 007374 A1 müssen dabei die beiden motivbildenden Teilbereiche nicht nur den gleichen optischen Eindruck einer Taktilität erzeugen, sondern auch den gleichen haptischen Eindruck erzeugen. Bei Abtasten mit einem Finger müssen somit die motivbildenden Teilbereiche entweder sämtlich fühlbar sein oder sämtlich nicht fühlbar sein. Wenn also beide motivbildende Teilbereiche für einen Betrachter taktil erfassbar erscheinen, müssen auch beide Teilbereiche entweder tatsächlich taktil erfassbar sein oder überraschenderweise taktil nicht erfassbar sein. Erscheinen hingegen beide motivbildende Teilbereiche für einen Betrachter nicht taktil erfassbar, müssen auch beide Teilbereiche entweder tatsächlich nicht taktil erfassbar sein oder überraschenderweise taktil erfassbar sein.In accordance with a further preferred embodiment, it is provided that the first and second motif-forming subregions have the same haptic effect. Unlike the WO 2013/007374 A1 The two motivating subregions not only have to produce the same visual impression of tactility, but also create the same haptic impression. When scanning with a finger, the motif-forming subareas must either all be palpable or not be felt. If, therefore, both motivating subareas appear tactile detectable for a viewer, both subareas must be either actually tactile detectable or surprisingly tactile not be detected. If, on the other hand, both motivating subareas do not appear to be tactile detectable for a viewer, then both subareas must either actually be tactile not detectable or surprisingly tactile detectable.

Gemäß einer weiteren bevorzugten Ausführungsform ist vorgesehen, dass auf dem Sicherheitspapier, Wertdokument oder Datenträger ein weiteres Sicherheitselement aufgebracht ist, das ein drittes Motiv in Form mindestens eines Musters, Zeichens oder einer Codierung bildet, wobei der optisch wahrnehmbare Eindruck des dritten Motivs mit dem optisch wahrnehmbaren Eindruck des ersten und zweiten Motivs übereinstimmt. Dieses weitere Sicherheitselement ist verschieden von dem erfindungsgemäßen Sicherheitselement und an einer anderen Stelle auf dem Sicherheitspapier, Wertdokument oder Datenträger angeordnet als das erfindungsgemäße Sicherheitselement. Durch dieses weitere Sicherheitselement ergibt sich somit für einen Fälscher eine zusätzliche Hürde, die er bei einer Nachstellung des Sicherheitspapiers, Wertdokuments oder Datenträgers überwinden muss.According to a further preferred embodiment it is provided that on the security paper, value document or data carrier another security element is applied, which forms a third motif in the form of at least one pattern, character or a coding, wherein the visually perceptible impression of the third motif with the visually perceptible Impression of the first and second motive matches. This further security element is arranged differently from the security element according to the invention and at another location on the security paper, value document or data carrier than the security element according to the invention. This additional security element thus results in an additional hurdle for a counterfeiter, which he must overcome in an adjustment of the security paper, value document or data carrier.

Gemäß einer weiteren bevorzugten Ausführungsform ist vorgesehen, dass das erste, zweite und gegebenenfalls dritte Motiv ein Portrait, eine bildhafte Darstellung, eine Zahl oder ein Währungssymbol bilden.According to a further preferred embodiment, it is provided that the first, second and optionally third motif form a portrait, a pictorial representation, a number or a currency symbol.

Das erfindungsgemäße Substrat kann als einlagiges oder mehrlagiges Sicherheitspapier ausgeführt sein. Mehrlagiges Sicherheitspapier enthält zumindest eine Lage aus Papier. Die weiteren Lagen können ebenfalls aus Papier, aber auch aus anderen Materialien, beispielsweise durch Kunststofffolien, gebildet sein. Das Sicherheitspapier besteht besonders bevorzugt aus Baumwollfasern, wie es beispielsweise für Banknoten verwendet wird.The substrate according to the invention can be embodied as a single-layer or multi-ply security paper. Multi-ply security paper contains at least one ply of paper. The further layers can likewise be made of paper, but also of other materials, for example by plastic films. The security paper is particularly preferably made of cotton fibers, as used for example for banknotes.

Bevorzugt kann das Substrat auch aus Papier aus anderen natürlichen Fasern, ebenso bevorzugt aus Synthesefasern, einer Mischung aus natürlichen und synthetischen Fasern oder ebenso bevorzugt aus mindestens einer Kunststofffolie bestehen. Weiterhin bevorzugt besteht das Substrat aus einer Kombination aus mindestens zwei übereinander angeordneten und miteinander verbundenen unterschiedlichen Substraten, einem sogenannten Hybrid, beispielsweise einer Kombination Kunststofffolie-Papier-Kunststofffolie, d.h. ein Substrat aus Papier wird auf jeder seiner beiden Seiten durch eine Kunststofffolie bedeckt, oder Papier-Kunststofffolie-Papier, d.h. ein Substrat aus einer Kunststofffolie wird auf jeder seiner beiden Seiten durch ein Substrat aus Papier bedeckt.Preferably, the substrate may also be made of paper of other natural fibers, also preferably of synthetic fibers, a mixture of natural and synthetic fibers or also preferably of at least one plastic film. Further preferably, the substrate consists of a combination of at least two superimposed and interconnected different substrates, a so-called hybrid, for example a combination of plastic film-paper-plastic film, i. a paper substrate is covered on either side by a plastic film, or paper plastic film paper, i. a substrate made of a plastic film is covered on each of its two sides by a paper substrate.

Angaben zum Gewicht des verwendeten Substrats sind beispielsweise in der Schrift DE 102 43 653 A9 angegeben, deren Ausführungen diesbezüglich vollumfänglich in diese Anmeldung aufgenommen werden. Die Schrift DE 102 43 653 A9 führt insbesondere aus, dass die Papierschicht üblicherweise ein Gewicht von 50 g/m2 bis 100 g/m2 aufweist, vorzugsweise von 80 g/m2 bis 90 g/m2. Selbstverständlich kann je nach Anwendung jedes geeignete Gewicht eingesetzt werden.Information on the weight of the substrate used are, for example, in the Scriptures DE 102 43 653 A9 stated, their statements in this regard be included in full in this application. The font DE 102 43 653 A9 in particular states that the paper layer usually has a weight of 50 g / m 2 to 100 g / m 2 , preferably from 80 g / m 2 to 90 g / m 2 . Of course, depending on the application, any suitable weight can be used.

Wertdokumente, für die ein derartiges Substrat bzw. Sicherheitspapier verwendet werden kann, sind insbesondere Banknoten, Aktien, Anleihen, Urkunden, Gutscheine, Schecks, hochwertige Eintrittskarten, aber auch andere fälschungsgefährdete Papiere, wie Pässe und sonstige Ausweisdokumente, sowie Karten, wie beispielsweise Kredit- oder Debitkarten, deren Kartenkörper mindestens eine Lage eines Sicherheitspapiers aufweist, und auch Produktsicherungselemente, wie Etiketten, Siegel, Verpackungen und dergleichen.Value documents for which such a substrate or security paper can be used are, in particular, banknotes, stocks, bonds, certificates, vouchers, checks, high-quality admission tickets, but also other papers which are subject to counterfeiting, such as passports and other identification documents, and also cards such as credit cards. or debit cards whose card body has at least one layer of security paper, and also product securing elements such as labels, seals, packages and the like.

Die vereinfachte Benennung Sicherheitspapier oder Wertdokument schließt alle oben genannten Materialien, Dokumente und Produktsicherungsmittel ein.The simplified term security paper or value document includes all the above materials, documents and product securing means.

Es versteht sich, dass die vorstehend genannten und die nachfolgend noch zu erläuternden Merkmale nicht nur in den angegebenen Kombinationen, sondern auch in anderen Kombinationen einsetzbar sind, ohne den Rahmen der vorliegenden Erfindung zu verlassen, soweit dies von dem Schutzumfang der Ansprüche erfasst ist.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, without departing from the scope of the present invention, insofar as this is covered by the scope of the claims.

Anhand der nachfolgenden Ausführungsbeispiele und den ergänzenden Figuren werden die Vorteile der Erfindung erläutert. Die Ausführungsbeispiele stellen bevorzugte Ausführungsformen dar, auf die jedoch die Erfindung in keinerlei Weise beschränkt sein soll. Des Weiteren sind die Darstellungen in den Figuren des besseren Verständnisses wegen stark schematisiert und spiegeln nicht die realen Gegebenheiten wieder. Insbesondere entsprechen die in den Figuren gezeigten Proportionen nicht den in der Realität vorliegenden Verhältnissen und dienen ausschließlich zur Verbesserung der Anschaulichkeit. Des Weiteren sind die in den folgenden Ausführungsbeispielen beschriebenen Ausführungsformen der besseren Verständlichkeit wegen auf die wesentlichen Kerninformationen reduziert. Bei der praktischen Umsetzung können wesentlich komplexere Muster oder Bilder zur Anwendung kommen.Reference to the following embodiments and the additional figures, the advantages of the invention will be explained. The embodiments represent preferred embodiments, to which, however, the invention should not be limited in any way. Furthermore, the representations in the figures of the better understanding because of highly schematized and do not reflect the realities again. In particular, the proportions shown in the figures do not correspond to the conditions present in reality and serve exclusively to improve the clarity. Furthermore, the embodiments described in the following exemplary embodiments are reduced to the essential core information for the sake of clarity. In the practical implementation much more complex patterns or images can be used.

Im Einzelnen zeigen schematisch:

Fig. 1
ein Wertdokument mit einem erfindungsgemäßen Sicherheitselement gemäß einem ersten Ausführungsbeispiel,
Fig. 2
ein Wertdokument mit einem erfindungsgemäßen Sicherheitselement gemäß einem zweiten Ausführungsbeispiel.
In detail, show schematically:
Fig. 1
a value document with a security element according to the invention according to a first exemplary embodiment,
Fig. 2
a value document with a security element according to the invention according to a second embodiment.

Fig. 1 zeigt ein Wertdokument 5, beispielsweise eine Banknote, auf deren Oberfläche ein Sicherheitselement 4 aufgebracht ist. Das Sicherheitselement 4 ist hierbei als Folienstreifen ausgeführt. Fig. 1 shows a value document 5, for example, a banknote, on the surface of a security element 4 is applied. The security element 4 is in this case designed as a film strip.

Auf dem Sicherheitselement 4 befindet sich ein erstes optisch variables Element 1, das aus einer ersten Art von Prägestrukturen besteht. Die erste Art von Prägestrukturen besteht beispielsweise aus einer Anordnung von Mikrospiegeln, die in die Oberfläche des Sicherheitselements 4 eingeprägt sind.On the security element 4 is a first optically variable element 1, which consists of a first type of embossed structures. The first type of embossed structures consists for example of an arrangement of micromirrors which are embossed into the surface of the security element 4.

Des Weiteren befindet sich auf dem Sicherheitselement 4 ein zweites optisch variables Element 2, das aus einer zweiten Art von Prägestrukturen besteht.Furthermore, a second optically variable element 2, which consists of a second type of embossed structures, is located on the security element 4.

Die zweite Art von Prägestrukturen besteht beispielsweise aus einer Anordnung von Mikrokavitäten, die in die Oberfläche des Sicherheitselements 4 eingeprägt sind. Damit unterscheidet sich die zweite Art von Prägestrukturen von der ersten Art von Prägestrukturen, da die erste Art von Prägestrukturen durch Mikrospiegel, die zweite Art von Prägestrukturen jedoch durch Mikrokavitäten gebildet wird.The second type of embossed structures consists for example of an arrangement of microcavities that are embossed into the surface of the security element 4. Thus, the second type of embossed structures differs from the first type of embossed structures, since the first type of embossed structures is formed by micromirrors, the second type of embossed structures, however, by microcavities.

Die beiden optisch variablen Elemente 1 und 2 sind beide in Form eines fünfzackigen Sterns ausgeführt, wobei sowohl die Fläche beider Sterne als auch ihre geometrische Ausgestaltung übereinstimmt. Des Weiteren sind die Mikrospiegel des ersten optisch variablen Elements 1 und die Mikrokavitäten des zweiten optisch variablen Elements 2 so ausgeführt, dass beide beim Kippen des Wertdokuments 5 einen ähnlichen Farbkippeffekt zeigen. Wird das Wertdokument 5 beispielsweise um die Achse A-A in die durch die Pfeile symbolisierte Richtung gekippt, zeigt das optisch variable Element 1 einen Farbwechsel von Grün nach Gold und das optisch variable Element 2 von Blau nach Gold. Selbstverständlich können die beiden optisch variablen Elemente 1 und 2 auch den gleichen Farbwechsel von Grün nach Gold oder Blau nach Gold zeigen. Anstatt eines Farbwechsels kann das optisch variable Element 1 auch einen dunklen Balken vor einem grünen bzw. blauen Hintergrund zeigen, der sich beim Verkippen des Wertdokuments 5 von links nach rechts und wieder zurückbewegt.The two optically variable elements 1 and 2 are both designed in the form of a five-pointed star, wherein both the surface of both stars and their geometric configuration match. Furthermore, the micromirrors of the first optically variable element 1 and the microcavities of the second optically variable element 2 are designed so that both show a similar color shift effect when the value document 5 is tilted. If the value document 5 is tilted, for example, about the axis A-A in the direction symbolized by the arrows, the optically variable element 1 shows a color change from green to gold and the optically variable element 2 from blue to gold. Of course, the two optically variable elements 1 and 2 can also show the same color change from green to gold or blue to gold. Instead of a color change, the optically variable element 1 can also show a dark bar in front of a green or blue background, which moves from left to right and back again when the value document 5 is tilted.

Der optisch wahrnehmbare Eindruck der beiden optisch variablen Elemente 1 und 2 stimmt somit im Sinne dieser Erfindung überein.The visually perceptible impression of the two optically variable elements 1 and 2 thus corresponds in the sense of this invention.

Fig. 2 zeigt das Wertdokument 5 aus Fig.1, wobei zusätzlich auf dem Wertdokument ein weiteres drittes Sicherheitselement 3 aufgebracht ist. Dieses Sicherheitselement 3 ist ebenso wie die optisch variablen Elemente 1 und 2 in Form eines fünfzackigen Sterns ausgeführt, der mit seiner Fläche, seiner geometrischen Ausgestaltung und damit seinem optisch wahrnehmbaren Eindruck mit den beiden Sternen aus Fig. 1 übereinstimmt. Fig. 2 shows the value document 5 Fig.1 , wherein additionally on the value document, a further third security element 3 is applied. This security element 3 is as well as the optically variable elements 1 and 2 in The shape of a five-pointed star, with its surface, its geometric design and thus its visually perceptible impression with the two stars Fig. 1 matches.

Claims (8)

  1. A security element (4) for security papers, value documents (5) and other data carriers, with a substrate, wherein the substrate has a first motif-forming portion with a first optically variable element (1) which forms a first motif in the form of at least one pattern, character or a coding, wherein the first optically variable element (1) consists of a first type of embossed structures, and wherein the substrate has a second motif-forming portion with a second optically recognizable element (2) which forms a second motif in the form of at least one pattern, character or a coding, wherein the second optically recognizable element (2) consists of a region recognizable in translucence or of a second type of embossed structures, characterized in that the optically perceivable impression of the first motif and the optically perceivable impression of the second motif match, wherein the first motif-forming portion and the second motif-forming portion are arranged in mutually disjoint fashion.
  2. The security element (4) according to claim 1, characterized in that the first type of embossed structures and the second type of embossed structures are different.
  3. The security element (4) according to claim 1 or 2, characterized in that the first and/or second type of embossed structures consists of one of the following reflective microstructures or nanostructures: micromirrors, microcavities, moth-eye structures, diffractive structures, achromatic structures, subwavelength gratings, moiré magnifiers, modulo mappers, tilt images without magnification, blazed gratings.
  4. The security element (4) according to at least one of the preceding claims, characterized in that the region recognizable in translucence is a perforation of the substrate or a region around which an opaque coating is arranged, wherein within the region the opaque coating is omitted or at least partly removed or replaced by a translucent coating.
  5. The security element (4) according to at least one of the preceding claims, characterized in that the first and second motif-forming portions have a haptically equal effect.
  6. The security element (4) according to at least one of the preceding claims, characterized in that the first and second motif-forming portions are not haptically perceivable.
  7. The security element (4) according to at least one of the preceding claims, characterized in that on the security paper, value documents (5) or data carrier there is applied a further security element (3) which forms a third motif in the form of at least one pattern, character or a coding, wherein the optically perceivable impression of the third motif matches the optically perceivable impression of the first and second motif.
  8. The security element (4) according to at least one of the preceding claims, characterized in that the first, second and optionally third motif form a portrait, a pictorial representation, a number or a currency symbol.
EP14004151.8A 2013-12-16 2014-12-09 Security element for security documents Active EP2886363B1 (en)

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CN104385800B (en) 2014-10-16 2017-10-24 中钞特种防伪科技有限公司 Optical anti-counterfeit element and optical anti-counterfeiting product
CN108761829B (en) * 2018-05-28 2020-07-10 浙江大学 Device for realizing super-resolution amplification imaging

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