EP1127712A1 - Security and/or value document - Google Patents

Abstract

The security method is adopted valuable documents that criminals may wish to forge, e.g. banknotes. The method of preventing forgery is to produce a banknote with a verification element (2). When the banknote is folded, the security element produces a specific visual effect when aligned with a security marking (3). The verification element is in the form of a transparent window that has a lens raster pattern and this interacts with the security marking.

Description

The invention relates to a security and / or document of value according to the preamble of Claim 1.

In particular personal documents, banknotes, securities, Certificates, service cards, such as credit cards or the like, postage stamps, general products, the Authorized are often easy in one reproducible processes can be produced.

It is desirable with these products, characteristics to bring in evidence of their authenticity, i.e. enable their originality.

The security features should be as inseparable as possible be associated with the product to be authorized and / or have properties that are difficult to are reproducing.

The manufacture and application of security features for security and / or securities general state of the art.

A variety of security features are known such as fluorescent fibers / planchettes / colors, micro script, moiree-generating structures, holograms and the like ..

As a security feature in the to be protected Often produce special colors with spectral Special features or with magnetic properties or with temperature dependencies (thermochromic Colors). Barcodes are used for which the reflectivity differences of the surface is used, or there are lattice structures or also film antennas to use the resonance frequency applied in a resonant circuit.

Security documents are known from AU 488 652, where security features by means of transmitted light observation can be checked. Between plastic sheets is an optically variable security element arranged, which has a transparent Viewed window in the cover sheet above can be. It is particularly disadvantageous that the attached security features only in the transmitted light process are visible to the naked eye, and that the material properties of the document are strong are changed.

It is also the introduction of only one transparent Window in banknotes known as a security feature (Australian banknotes).

DE 43 34 847 A1 includes a document of value Window described in which the carrier subsequently is provided with a window-like opening, which are closed with a transparent cover film is, the cover film in this area of the Window with additional security features is provided. The manufacture of the subsequent Break through the bearer of the security into one Window and the cover with a transparent Cover film, which in turn partially with a Security feature is technological complex and has an increase in the thickness of the Result in securities. The condition that areas of the Window must remain transparent in order to be bare Eye the security features in the transmitted light process being able to recognize limits the possibilities concealed security features. It is just like the known ones Window threads in banknotes around elements, which stand alone taken only as a security element, but do not take on any other function. The well-known Windows can also take on their own Include security features.

The authenticity check of the known security features usually requires the use of special Devices, methods and in particular external ones Testing devices such as magnifying glasses for checking micro script, Lenticular grid for checking hidden, graphic elements, UV lamps for visualization of fluorescence, or the transmitted light process optical recognition of the security feature.

DE 36 09 090 A1 contains a security described stored security thread, which without technical aids can be checked visually. The Security thread consists of a transparent Material. A grid is out on a surface Cylinder lenses embossed. On the opposite The surface of the film of the thread is directly one Printed image applied. The print image is below Taking into account the optical properties of the Designed cylindrical lenses. By appropriate Design of the printed image can thus provide information be brought in only under certain Viewing angles are visible.

The disadvantage is that directly under the thread of paper is arranged so that the security feature only in Reflection and not be considered in transmission can. Security is only in the thread. The string forms a common security element.

The invention is based on the object generic security and / or value document develop security against counterfeiting increased and the simplified verification of document authenticity guaranteed without external aids.

The solution to this problem arises from the Features of claim 1. By teaching of security features and means of verification such as Detectors for verifying the security features on or in a document it is achieved that none external tools to check the authenticity of the Document are required. It can be authenticity of, for example, those on a banknote Security features by for example with a or with several transparent windows on the same Banknote to be checked. The combination of Security features and a verification system on the same banknote increases their security against counterfeiting, since the verification system too a security feature can be designed. For The authenticity can be checked by the show and Back of the banknote can be used. By appropriate folding of the banknote or any other document, which according to the regulation of Invention is formed, or by Stacking several banknotes, one can Security feature can be checked by the Security feature with the verification system, e.g. Window that is brought into effect with each other.

It can be applied to the value document with the Verification element at various points in the Checked document security features checked become.

In a passport, for example, two opposite ones Document verification pages serve. To do this, a page with the verification element, e.g. a lenticular screen film, partial or all over, the other side with the one to be analyzed Security feature, for example latent visible raster structures. By the authenticity becomes a suitable superimposition checked. Likewise, two banknotes, checks or two other similarly designed documents of value Authenticity can be checked.

The functionality of the in is decisive the document integrated window. It will essentially no additional thickness of the document is created, because the detection means and the security features on a document in different places are arranged and not one above the other.

The preferred formation of the verification element as a detector / analyzer or decoder in the form one or more transparent windows or also a window with several analyzer areas Detection elements ensures a variety of Variants for checking the authenticity of a large number of possible security features.

1. Die Verifikationselemente werden durch lenticulare Linsen/Zylinderlinsen/Wackelbilder und autostereoskopischen Vorrichtungen, welche die Sichtbarmachung von optisch codierten Sicherheitsmerkmalen oder von drucktechnisch auf das Dokument aufgebrachten Strukturen ermöglichen, gebildet, die sich in/auf einer transparenten Folie oder dgl. befinden. Die Linsenraster bestehen vorzugsweise aus gleichartigen Zylinderlinsen, die parallel zueinander, vorzugsweise im gleichen Abstand (z.B. 200 µm) angeordnet sind. Der Focus eines derartigen Linsenrasters ist vorzugsweise auf die optische Dicke des verwendeten transparenten Substratmaterials abgestimmt.Diese Zylinderlinsen können durch mehrere Arten in ein transparentes Material, z.B. PVC-Folien, eingebracht werden, z.B. durch Pägen mit einem geeigneten Master, sie können auch durch Gießen der Folie in eine geeignete Form erzeugt sein, sie können auch durch speziell geformte Spritzdüsen durch Extrudieren in der Folie gebildet sein.

2. Die Verifikationselemente werden durch Fresnel-Linsen oder ähnliche vergrößernde, optische Strukturen gebildet, welche die Erkennung von sehr kleiner Schrift oder von grafischen Elementen auf dem Dokument ermöglichen.

3. Die Verifikationselemente werden durch aufgebrachte, vorzugsweise gedruckte feine grafische Strukturen sowohl auf der Folie eines Fensters als auch auf einem Teil des Dokumentes gebildet. Das Fenster bildet die Maske für ein "parallax-barrier display".Beim Übereinanderlegen der korrespondierenden Flächen (Fenster/Sicherheitsmerkmal auf dem Dokument) werden sogenannte Moiree-Strukturen erzeugt. Die Linien- oder Punktraster auf dem Fenster bilden mit den entsprechenden Linien- oder Punktrastern im Bereich des Sicherheitsmerkmals des Wertdokuments eine Moiree-Struktur. Das dadurch erzeugte Moiree-Muster gilt als charakteristisches Sicherheitsmerkmal für das Wertdokument.Wenn die Fenster so angeordnet werden, daß sie beim Falten des Dokumentes übereinander liegen, dann kann erreicht werden, daß exakt registerhaltige Strukturen bei einer Relativverschiebung Farb- oder Musterwechsel erzeugen.

4. Die Verifikationselemente werden durch Polarisationsfilter gebildet. Bevorzugt werden zwei klare Fenster nebeneinander angeordnet oder ein Fenster wird in zwei Analysatorbereiche geteilt.Die Fenster können als zwei Polarisatoren für die Betrachtung von Polarisations-Stereobildern ausgebildet sein.Es kann erreicht werden, daß mindestens ein speziell geformtes Fenster einen "Polaroid-Vectographen" bildet.Es können Fenster zur Realisierung eines Kontrastumschlages zwischen transmittierend und undurchlässig geformt werden. Solche Strukturen können dadurch realisiert werden, daß auf eine linear polarisierende Folie lamda-halbe Bereiche, beispielsweise durch geeignet orientierte Folien der richtigen Dicke, aufgebracht werden :

• Die hellen und dunklen Bereiche eines Bildes sind linear polarisierende Bereiche mit abwechselnd horizontaler und vertikaler Polarisationsrichtung. Es können Fenster geformt werden, die einen deutlichen Farbumschlag nach dem Prinzip der "color shutter" realisieren.

5. Das Fenster ist als Interferenz-/Farbfilter ausgebildet (transparente Beugungsstrukturen, Multilayer-Systeme).

The verification elements on / in one or on / in several windows or in areas of a window are preferably formed from a clear, transparent material and preferably from the following groups:

1. The verification elements are formed by lenticular lenses / cylindrical lenses / wobble images and autostereoscopic devices which enable the visualization of optically coded security features or of structures applied to the document by printing technology, which are located in / on a transparent film or the like. The lenticular grid preferably consist of cylindrical lenses of the same type, which are arranged parallel to one another, preferably at the same distance (for example 200 μm ). The focus of such a lens grid is preferably matched to the optical thickness of the transparent substrate material used. These cylindrical lenses can be introduced into a transparent material, for example PVC foils, in a number of ways, for example by stamping with a suitable master, or they can also be cast by casting Foil can be produced in a suitable shape, they can also be formed by specially shaped spray nozzles by extrusion in the foil.

2. The verification elements are formed by Fresnel lenses or similar magnifying, optical structures, which enable the recognition of very small letters or graphic elements on the document.

3. The verification elements are formed by applied, preferably printed, fine graphic structures both on the film of a window and on part of the document. The window forms the mask for a "parallax-barrier display". When the corresponding areas are superimposed (window / security feature on the document), so-called moiree structures are created. The line or point grids on the window form a moiree structure with the corresponding line or point grids in the area of the security feature of the value document. The resulting moiree pattern is considered a characteristic security feature for the document of value. If the windows are arranged so that they lie on top of each other when the document is folded, then it can be achieved that precisely registered structures produce a change in color or pattern when the document is shifted relative.

4. The verification elements are formed by polarization filters. Two clear windows are preferably arranged side by side or a window is divided into two analyzer areas. The windows can be designed as two polarizers for viewing polarization stereo images. It can be achieved that at least one specially shaped window forms a "polaroid vectograph" Windows can be formed to create a contrast envelope between transmissive and opaque. Structures of this type can be realized by applying lambda-half regions to a linearly polarizing film, for example using suitably oriented films of the correct thickness:

• The light and dark areas of an image are linearly polarizing areas with alternating horizontal and vertical polarization directions. Windows can be formed that implement a clear color change according to the "color shutter" principle.

5. The window is designed as an interference / color filter (transparent diffraction structures, multilayer systems).

• analog zu holografischen Laserschutzbrillen oder
• eine Mischfarbe erscheint in einer anderen Farbe,
• eine reine Spektralfarbe verschwindet.

The transparent window is designed as a holographic filter that reflects a narrow spectral range, either

• analogous to holographic laser safety glasses or
• a mixed color appears in a different color,
• a pure spectral color disappears.

Such a filter is also for two clear windows suitable, with the verification window in a holographic and a non-filtering adjacent part can be divided.

The windows are used as two color filters for the Viewing anaglyphs (stereo images) or as Prisms, preferably as gradient index prisms (superchromatic if possible), for a chromastereoscopic Image trained.

Further advantageous embodiments of the invention result from the subclaims.

Fig. 1

die schematische Darstellung einer Banknote mit einem Fenster und einem Sicherheitsmerkmal,

Fig. 2

die schematische Darstellung der Anordnung von einem Fenster mit zwei Bereichen auf der Banknote als Verifikationselement,

Fig. 2a

die schematische Darstellung der Anordnung von einem Fenster mit zwei Bereichen gemäß Fig. 2 zur Ausbildung eines "Vectographen",

Fig. 2b

die schematische Darstellung der Anordnung von einem Fenster mit zwei Bereichen gemäß Fig. 2 zur Ausbildung unterschiedlicher Muster,

Fig. 2c

die schematische Darstellung der Anordnung von einem Fenster mit zwei Bereichen gemäß Fig. 2 zur Ausbildung eines chromastereoskopischen Bildes,

Fig. 2d

die schematische Darstellung der Anordnung von einem Fenster mit zwei Bereichen gemäß Fig. 2 zur Ausbildung von "lamda-halbe"-Bereichen,

Fig. 3

Die schematische Darstellung der Anordnung von zwei nebeneinanderliegenden Fenstern mit unterschiedlichen Verifikationselementen,

Fig. 4

die schematische Darstellung der Erzeugung von Rasterstrukturen und

Fig. 5

die schematische Darstellung einer Banknote mit Fenstern an einer Ecke.

The invention is explained in more detail below on the basis of exemplary embodiments of a banknote shown in the drawings as a document of value. Show it:

Fig. 1

the schematic representation of a banknote with a window and a security feature,

Fig. 2

the schematic representation of the arrangement of a window with two areas on the banknote as a verification element,

Fig. 2a

2 shows a schematic representation of the arrangement of a window with two areas according to FIG. 2 to form a "vectograph",

Fig. 2b

2 shows a schematic representation of the arrangement of a window with two areas according to FIG.

Fig. 2c

2 shows a schematic representation of the arrangement of a window with two areas according to FIG. 2 to form a chromastereoscopic image,

Fig. 2d

the schematic representation of the arrangement of a window with two areas according to FIG. 2 to form "lamda-half" areas,

Fig. 3

The schematic representation of the arrangement of two adjacent windows with different verification elements,

Fig. 4

the schematic representation of the generation of raster structures and

Fig. 5

the schematic representation of a banknote with windows on a corner.

According to the representation in Fig. 1 is a Document of value, e.g. a banknote 1, with a transparent one Window 2 formed, which by the equipment with verification elements as a detector or Like. Is used to a security feature in to verify an area 3 of the banknote 1. The Verification of the security feature in area 3 of the Banknote 1 is e.g. by superimposing them of the two areas 2 and 3.

In a first exemplary embodiment, the window is 2 1 with a lenticular grid as a verification element Mistake. The orientation of the lenticular grid in the area of window 2 and the corresponding one Typically generated screen as a security feature in area 3 of banknote 1 must be such be coordinated so that the desired effects are visible become, if the Areas 2 and 3, e.g. by folding, on cover are brought.

The printed grid structures as a security feature in area 3 can be used with everyone in security printing Printing processes are generated, preferably in the simultaneous offset method (letterset) due to the required high resolution.

4 is a simple example of the generation of grid structures in the form of the letter "D" shown. By superimposing the lenticular grid in the window 2 with the line grid 4 in area 3 the clear image 7 is created in the eye of the beholder of the letter "D".

Also printed line structures in combination with Embossments that show so-called tipping effects (DE 23 34 702), and preferably in intaglio printing can be generated by suitable superimposition the areas 2, 3 (FIG. 1) of the bank note 1 visible be made, area 2 being the lenticular grid must have to increase the tilting effect.

The lenticular grid preferably consist of similar cylindrical lenses which are arranged parallel to one another, preferably at the same distance of, for example, 200 μm .

These cylindrical lenses can be of several types in one transparent material, e.g. PVC film, inserted , for example by pouring a foil on it a band with a profile in negative form or through the extrusion of lenticular grids through special shaped spray nozzles, e.g. Wide slot nozzles.

The cylindrical lenses can still be stamped with a suitable pattern or by rolling out Foils between rolls with a corresponding Negative profile can be produced.

Gradient index lenses can be made from bleached silver halide layers or photopolymers become.

In a second embodiment according to FIG. 1 the verification element in the window 2 of the banknote 1 by Fresnel lenses or by similar magnifying, optical structures, which the detection of very small fonts or graphic elements in the area 3 on the document 1 by suitable superimposition the areas 2, 3 allow formed. Here is the very small thickness of the Fresnel lenses simultaneous good magnification of the magnifying glass, e.g. the 5 to 10 times, a decisive advantage for that Integration in substrate materials.

According to a third embodiment, this is Verification element in window 2 of banknote 1 in 1 formed by fine line structures, the also on part of document 1 in area 3 be formed. When stacking the corresponding areas 2 and 3 of document 1 this creates so-called moiree structures. Examples of moiré-generating patterns are in the DE 28 19 640, DE 23 24 702, DE 26 03 558, DE 36 02 563 described.

The verification element in window 2 can be a printed one Line or dot grid for one visual decryption / encryption process at a Banknote 1. In addition to printing fine dots and / or lines there is also the possibility of the Punch area 2 (window) of document 1 or to perforate, preferably by means of laser perforation, so that by appropriately superimposing the areas 2 and 3 of banknote 1, e.g. by folding, a Moiree pattern is generated. Area 3 of the banknote 1 can be a transparent material with line / raster printing, an opaque material with line / raster print or an area with a suitable perforation, preferably a laser perforation.

In a fourth embodiment, a polarization filter on / in a preferably transparent Foil material as verification element in area 2, e.g. a banknote 1, in combination with another, similarly designed polarization filters in the area 3 integrated. The polarization filter in the area 3 is preferably perpendicular or parallel to the polarization filter designed in area 2 and acts as Analyzer, so that by appropriate superimposition of areas 2 and 3 of banknote 1 and rotation of the areas 2 and 3 lying one on top of the other, the optical transparency (light / dark) changes or changes.

Another embodiment is formed by that on one of the two polarization filters in the Areas 2,3 an additional dichroic (birefringent), graphically structured layer, e.g. by Printing, sputtering, casting and the like, is applied, so that by appropriately superimposing the areas 2, 3 of the banknote 1 and rotation of the superimposed Areas 2, 3 against each other, a graphic Element, e.g. a font that becomes visible.

Another embodiment is achieved by one of the two polarization filters in the areas 2,3 is replaced by a reflective layer, with an additional dichroic, graphic structured layer on this reflective layer is applied. By laying them on top of each other of areas 2, 3 of banknote 1 and rotation of areas 2, 3 lying one on top of the other a graphic element, e.g. a font, visible.

Another embodiment provides one of the two polarizing filters by a reflective To replace the layer, with an additional dichroic, graphically structured layer on this reflective layer is applied. This birefringent transparent layer can preferably be made of a liquid crystal-containing film. By suitably superimposing areas 2, 3 banknote 1, e.g. by folding, and by turning of the areas lying one on top of the other a graphic element, e.g. a font, visible.

For many verification effects, it is desirable two different types of verification elements quickly and easily bring about the security feature. This often makes it easier to perceive a change in the case of movement or color change effects. It facilitates verification in cases where a Rotation of the verification element relative to the security feature is required. Such a turn would be great with a single verification window 2 impractical. It will fix these problems the division of the verification window 2 into two adjacent analyzer areas (Fig. 2, 2a to 2d) or the arrangement of two side by side Windows 2 (Fig. 3) with different verification elements suggested.

2c is an embodiment of a window 2 shown as a verification element in the the banknote 1 as verification elements at least two clear analyzer areas 5, 6 side by side as Window 2 are arranged. The analyzer areas 5, 6 are preferred as holographic prisms, if possible as superchromatic prisms, for a so-called Chromastereoscopic image is preferred the prisms are used as gradient index prisms Formed from thin foil materials.

An embodiment according to Fig. 2a provides that the at least two clear ones arranged side by side Analyzer areas 5,6 in a window 2 as one so-called "Vectrograph" are formed. On "Vectograph" consists of two laminated on top of each other Polyvinyl alcohol films, which are linear polarizing filters train when using iodide colors be printed. The two slides are like this oriented that the front side in contact with the Iodide color a vertical and the back at Horizontal contact with the iodide color Forms polarization (Fig. 2a, 2b). On the front Foil becomes a selected first with iodide color Patterns, e.g. a square 10 (Fig. 2a, 2b), and on the A selected second pattern, e.g. on Star 11 (Fig. 2a, 2b), printed. When considering the superimposed foils with a linear analyzer (Window 2, area 5 of FIGS. 2a, 2b) appears with a horizontal orientation of the analyzer 5 the first pattern (square 10) and a vertical one Orientation of the analyzer 6 the second pattern (Star 11). Color changes can also be implemented become.

A verification window 2 shared in this way Analyzer areas 5, 6 saves the rotation of the Window 2, window 2 is only moved.

Similar shaped areas 5, 6 can be used for implementation a contrast envelope between transmitting and be made impermeable. Such structures can be realized in that a linear so-called polarizing film 8 (Fig. 2 d) "Lamda half" areas 9 (phase plates with a 180 ° phase shift between trim and extraordinary beam), for example by suitably oriented film materials of the right ones Thickness can be applied (Fig. 2 d). In these Areas the polarization direction becomes 90 ° turned. This effect is particularly impressive with Area fill patterns. Similar structures serve to realize a clear color change according to the principle of the so-called "color shutter".

In a further embodiment of the verification element (s) in the window 2 of the banknote 1 Interference / color filters, generally transparent Diffraction structures, multilayer systems, used.

The interference / color filters are in / on one preferably formed transparent film material or consist of this material. The filters are on for example a banknote 1 in the area 2 in Combination with a colored graphic element in the Area 3 integrated. By laying them on top of each other the areas 2, 3 of the banknote 1 becomes a certain spectral range in the graphic element, e.g. Writing, hidden or let through by area 2, so that it differs from the original color Color impression arises.

As an interference / color filter, both colored, transparent materials as well as transparent ones Materials with e.g. vapor-deposited / sputtered, printed colors are used.

In another embodiment there are at least two clear analyzer areas 5,6 as shown 2 and 3 arranged side by side. These areas 5,6 are called at least two color filters for viewing so-called anaglyphs (Stereo images) trained, the anaglyphs located on area 3 of banknote 1. By suitable stacking of areas 5, 6 and 3 at a certain distance from each other Stereo impression.

All windows can be in any shape, preferably in a form that corresponds to the type of verification element selected best corresponds, also thread-like or, as shown in Fig. 5, triangular, be trained.

The windows can be placed anywhere in the document, so also on a corner of the document, as in the Fig. 5 is shown as an example, be formed only have to meet the condition that security features and verification elements for verification of the security feature in an operative connection to one another can be brought, for example, by Folding, twisting, stacking one or the other multiple documents.

The superimposition can be in direct contact or in in some cases even at a distance between the Security feature and the verification element respectively.

REFERENCE SIGN LIST

1

Security document / banknote

2nd

Area (window / verifier)

3rd

Area (security feature)

4th

Line grid

5

Analyzer area

6

Analyzer area

7

image

8th

Polarizing film

9

"Lamda half" area

10th

square

11

star

Claims (22)

Security and / or value document, in particular bank note, with security features and with a verification element for verifying the security feature,
characterized in that
At least one verification element (2) and at least one security feature (3) verifiable with this verification element (2) are integrated into the document (1) at different points, the verification element (2) and the security element (3) being brought one above the other only for verification. Security and / or value document according to claim 1, characterized in that at least one security feature (3) on the front and / or back is trained. Security and / or value document according to claim 2, characterized in that the security feature (3) is formed by at least one window. Security and / or value document according to claim 1, characterized in that at least one verification element (2) on the front and / or on the Back is formed. Security and / or value document according to claim 4, characterized in that the verification element (2) is formed by at least one window. Security and / or value document according to claim 4, characterized in that the verification element (2) as a strip on one edge of the document (1) is formed. Security and / or value document according to claim 4, characterized in that a corner of the document (1) is designed as a verification element (2). Security and / or value document according to claim 5, characterized in that the verification element (2) through at least one window with at least a transparent area and with verification means like lenses, graphic elements, Polarization filter, color filter, interference filter, Holograms, perforated areas is formed. Security and / or value document according to claim 8, characterized in that the verification element (2) through at least one window with at least two areas (5,6) with verification means is formed. Security and / or value document according to claim 8, characterized in that the lenses lenticular lenses / cylindrical lenses or Fresnel lenses or gradient index lenses. Security and / or value document according to claim 8, characterized in that the window (2) a mask for a parallax barrier display forms. Security and / or value document according to claim 8, characterized in that the window (2) Line or dot grid for a visual decryption process with lines or dots forms. Security and / or value document according to claim 8, characterized in that at least one Window (2) as a holographic filter, which reflected a narrow spectral range is. Security and / or value document according to claim 9, characterized in that the verification window (2) side by side in a holographic and in a non-filtering area (5,6) is subdivided. Security and / or value document according to claim 9, characterized in that the verification window (2) side by side in two color filter areas (5.6) for viewing Anaglyph is formed. Security and / or value document according to claim 9, characterized in that the verification window (2) side by side in areas (5,6) with prisms for a chromastereoscopic image, especially with gradient index prisms, is trained. Security and / or value document according to claim 9, characterized in that the verification window (2) a mask for a security feature (3) to create a parallax barrier display having. Security and / or value document according to claim 9, characterized in that the verification window (2) side by side in two areas (5,6) with polarizers for viewing Polarization stereo images is formed. Security and / or value document according to claim 9, characterized in that the areas (5,6) of the verification window (2) a vectograph form. Security and / or value document according to the Claims 14 to 19, characterized in that the analyzer areas (5,6) of the verification window (2) separated into two side by side Windows are formed. Security and / or value document according to claim 1, characterized in that the verification element (2) and the security feature (3) of the Document (1) by folding the document (1) to Verification of the security feature (3) superimposed and in this operative connection are recognizable by machine. Security and / or value document according to claim 1, characterized in that the verification element (2) a document (1) and that Security feature (3) of another document (1) to verify the security feature (3) are overlaid.

Images