EP3828002A1 - Value document - Google Patents

Abstract

The invention relates to a document of value, such as a bank note (1), a check, a credit or other payment card, an identity card or the like, which has a front (9) and a back (10), viewed from above at least from the front ( 9) shows a representation (3) recognizable to the naked eye, has certain dimensions (W, H) in plan view and has a substrate body (2) which has certain dimensions (W, H) in plan view and consists of at least one transparent film (11, 12) is constructed, which also has the specific dimensions (W, H) in the plan view, the representation (3) recognizable from the front side (9) generated by a first, at least partially metallized embossed structure (14) which is arranged on one side of the first film (9) and has a lateral, that is, transversely to the plan view direction, a varying profiling and / or metallization, wherein the first, at least partially metallized embossed structure ur (14) is formed on a foil front side facing the front side and a second, at least partially metallized embossed structure (14) is formed on a foil back side facing the rear side (10) and at least one of the metallized embossed structures (14) with a leveling cover layer (22 ) is covered.

Description

The invention relates to a value document, such as a bank note, a check, a credit or other payment card, an identification card or the like, which has a front and a back, in plan view at least from the front shows a representation recognizable to the naked eye the plan view has certain dimensions and has a substrate body which has the certain dimensions in the plan view and is made up of at least one transparent film which also has the certain dimensions in the plan view, the representation recognizable from the front by a first, at least in sections metallized embossed structure is produced, which is arranged on one side of the first film and has a lateral, that is transverse to the plan view direction, a varying profiling and / or metallization.

The invention further relates to a document of value, such as a bank note, a check, a credit or other payment card, an identification card or the like, which has a front and a back, shows a representation that can be seen with the naked eye in a plan view at least from the front, has certain dimensions in the plan view and has a substrate body which has the certain dimensions in the plan view and is made up of a first and a second transparent film, which also have the certain dimensions in the plan view and which are connected to one another by an intermediate layer, so that inside of the foils face each other and outside of the foils away from the intermediate layer, the outside of the first foil facing the front side and the outside of the second foil facing the back side, the representation recognizable from the front side being generated by a first, at least partially metallized embossing structure is t that on the inside the first film is arranged, and laterally, that is, transversely to the plan view direction, has a varying profiling and / or metallization.

For documents of value, such as banknotes, film-based security features, e.g. B. holograms, optically variable elements and / or transparent windows can be used. They are produced on foil and later applied to the banknote paper. Foil elements give banknotes additional protection against forgery, but are difficult to register with the printed image and the watermark. In addition, there is the risk that foil elements become detached when a banknote is circulating.

From the WO 2016/096095 A1 a generic document of value is known which is composed entirely of a film body. The film body consists of two films that are connected to one another via an intermediate layer. On the sides facing the intermediate layer, the foils each have sub-wavelength structures. All optical views that are presented by the value document are generated by these subwavelength structures. Other image-generating elements are deliberately excluded.

There are currently bank notes with different substrates. Paper, polymer and mixed forms of paper and polymer in the form of so-called hybrid banknotes are known. For each type of banknote, special process steps are required in order to apply security elements to the banknote paper or to generate them when the banknotes are printed on the banknote paper. In the case of polymer banknotes, the color retention is problematic during circulation.

The problems and requirements mentioned do not only exist with regard to banknotes, i. H. paper- or film-based documents of value, but also for payment cards or identification cards. The term “document of value” is therefore understood here to the effect that it includes sheet-like documents of value, such as banknotes, checks, etc. in exactly the same way as comparatively rigid documents of value, e.g. B. Security, ID or payment cards.

The invention is based on the object of creating a value document in which film-based security elements can be easily combined with security elements that are generated by displaying images etc. Another object on which the invention is based is to create a document of value that has a particularly long life in circulation.

The invention is defined in independent claims 1 and 6. The dependent claims relate to advantageous developments of the invention.

The invention provides a document of value that consists entirely of a film body. The value document has certain dimensions in plan view. The film body has the same dimensions in plan view. A representation can be seen from the front. This is generated by a first embossed structure that is metallized at least in sections. The embossed structure has a varying profiling and / or metallization transversely to the plan view direction.

In a first variant of the invention, the substrate body is made up of at least one transparent film and carries the first embossed structure on the the front of the film facing the front. In this first variant, a second embossed structure that is metallized at least in sections is formed on a rear side of the film facing the rear side. At least one of the metallized embossed structures is covered with a leveling cover layer.

In one embodiment, the embossed structure has microlenses, as are known for so-called moiré magnifiers.

In embodiments, the embossing structure can be in parts, i.e. H. in sections, be designed as a sub-wavelength structure and have a periodicity of 150 nm to 500 nm or be designed aperiodically with structure widths of 150 nm to 500 nm.

In embodiments, at least one opaque section is provided between the first and the second embossed structure. This can have a laterally structured opacity.

In a second variant, the substrate body is also made up of a second transparent film, which also has the specific dimensions when viewed from above. The two foils are connected to one another via an intermediate layer, so that inner sides of the foils face one another and outer sides of the foils face away from the intermediate layer. The outside of the first film points towards the front side, the outside of the second film towards the rear side of the substrate body. The first metallized embossed structure is arranged on the inside of the first film and has microlenses or micromirrors.

In refinements of the second variant, the value document shows, in a top view from the rear, a further representation that can be seen with the naked eye. This is produced by a second, at least partially metallized embossed structure which is arranged on the inside or outside of the second film. This second embossed structure also has a laterally varying profiling and / or metallization, at least in sections.

In embodiments of the first or second variant, the first and the second embossed structure form a window in opposite areas in which the representation through the first embossed structure is supplemented with the further representation through the second embossed structure in transparency to form a motif. In this case, the first and second embossed structure in the area of the window can optionally have an asymmetrical profile and, in reflection, produce a motif that disappears in view.

For all embodiments, the first embossed structure can be designed as a microstructure with a period of 500 nm to 2 μm in at least one area, which z. B. represents a hologram or an image with a tilt or movement effect.

The invention uses banknotes with a full surface structure which show a viewer a representation which is produced by embossing structures. The conventional print image of a document of value, for example a bank note, is reproduced by the embossed structure with the lateral variation of profile / periodicity. The embossed structures offer the representation not only in specular reflection, but z. B. in a higher diffraction order, for example the first or further diffraction orders They are designed in such a way that the representation can be recognized over a wide viewing angle range that is almost or completely the same as that of a conventional print image.

Because the printed image of the document of value is reproduced by full-surface embossing structures, the conventional printing process in banknote production is superfluous. The embossed structure is covered in the first variant and is therefore robust against environmental influences. In the second variant, it lies in the interior of the substrate body. In addition, all desired security features such as holograms, micromirrors, etc. can be produced in a single embossing step. Furthermore, overhead / see-through effects can easily be implemented in windows. The production of the value document is thus significantly simplified. The appearance of the first order of diffraction increases the security against forgery compared to conventional banknotes.

In one embodiment, the representation is generated by the embossed structure which is arranged on the film which is at the top in the viewing direction and there on the inside. In order to avoid an effect from the film lying at the bottom in the viewing direction, it is preferable for the intermediate layer to be opaque at least in sections. In the sections provided with an opaque intermediate layer, the representation is then brought about exclusively by the embossed structure on the film lying at the top in the viewing direction. It is of course possible to structure the intermediate layer laterally with regard to its opacity, for example in order to create a conscious interaction between the top and see-through effects. In a particularly preferred embodiment, both foils are provided on their insides with metallized embossed structures with microlenses and / or micromirrors, ie the document of value also shows a further representation recognizable to the naked eye from a top view from the rear, which is represented by a second, at least partially metallized Embossed structure is generated, which is arranged on the inside of the second film and which is designed at least in sections as a subwavelength structure with laterally varying profiling and / or periodicity. The outside of the second film forming the rear side and the rear side of the intermediate layer facing the second side are preferably free of imprints that contribute to the broad representation. A value document configured in this way then generates a representation exclusively through the embossed structure both on the front side and on the back side. A value document designed in this way also no longer requires a printing process during production.

In a preferred embodiment, the first and second embossed structure form a window in opposite areas. The metallization of the embossed structures is relevant for this window. Metallization is preferably not provided in the window area. This can be achieved in that the metallization is not applied in the window area from the beginning or that a metallization is subsequently removed again in the window area, for example by ablation with a laser or the use of a so-called wash color. Both means are known to the person skilled in the art from the prior art.

It is also possible to provide metallized embossed structures in the area of the window on both inner sides of the foils, which in plan view from the front and the rear each show a motif and parts of the window like this Allow the embossed structures to complement each other to form a motif.

In the simplest case, the intermediate layer and / or cover layer can consist of a dielectric with which the insides of the foils are laminated. It is also possible to design the value document as a so-called hybrid value document, for example as a hybrid bank note, if the intermediate layer comprises a bank note paper. Particularly preferred here is a banknote paper that has a watermark, the embossed structures forming a window in the area above the watermark. This will make the watermark visible through the window.

A colored effect of the representation can be achieved in that there is a layer of color on the foil or foils or the foil is / are colored. Alternatively or additionally, the intermediate layer can be colored.

Bank notes are examples of documents of value that are individualized. They have a serial number. In the case of the value document according to the invention, this serial number can be generated particularly easily in that, for example, the metallization in a pattern is omitted or subsequently removed so that the value document is individualized in the process. It is therefore preferred that the metallization is omitted or removed in a pattern that individualizes the value document, in particular in a pattern that represents a serial number.

For the purposes of this description, metallization is to be understood as a coating which consists of metal or which contains metal. Also is one Layer structure possible, which consist of a composite layer with metal inclusions. However, it can also consist of a multilayer structure in which one or more layers are metallic.

For the production of the document of value by means of an embossing process, direct exposure techniques, e.g. B. with the help of a laser writer in question. The original of the embossed structure is written into a substrate coated with photoresist by direct exposure with the aid of a laser writer, and the exposed portion of the photoresist is then removed. More complex processes for original production, such as electron beam or “focused ion beam” exposure processes, allow the embossed structure to be designed in a particularly fine manner. The original exposed in this way can then be electroformed and thus an embossing stamp can be produced as a master, with which an embossing cylinder is produced for embossing a film web. Ultimately, the structure is replicated via an embossing process, for example in UV varnish on foil or directly (e.g. by hot embossing in the surface of the foil). Alternatively, a nanoimprint process can be used.

The embossed film surface is then metallized, e.g. B. with a reflective layer and / or a color effect causing structure, z. B. an interference layer structure, and / or a color layer, z. B. a Color-Fix coating. Electron beam vapor deposition, sputtering or thermal evaporation in a vacuum, among others, are possible for this purpose. Finally, the film is laminated together with the intermediate layer.

It goes without saying that the features mentioned above and those yet to be explained below are not only used in the specified combinations, but can also be used in other combinations or on their own without departing from the scope of the present invention.

Fig. 1

eine Draufsicht auf eine Banknote und

Fig. 2 bis 5

Schnittdarstellungen für verschiedene Ausführungsformen von Prägestrukturen der Banknote der Fig. 1.

The invention is explained in more detail below by way of example with reference to the accompanying drawings, which also disclose features essential to the invention. Show it:

Fig. 1

a top view of a banknote and

Figures 2 to 5

Sectional representations for different embodiments of embossed structures of the bank note of Fig. 1 .

Fig. 1 shows schematically a banknote 1 which is surface-structured over the entire surface with an embossed structure and which is constructed from a substrate body 2 which has a height H and a width B. In a first embodiment, the substrate body 2 is provided with an embossed structure on inner surfaces, which z. B. provides micromirrors and / or microlenses at least in sections. In other embodiments, the embossed structures are formed on both sides of the same film. Both are explained below using the sectional views of Figures 2 to 5 , which show different embodiments for the embossed structure, explained in more detail.

The bank note 1, which is an example of a value document, presents a viewer from the front, which is shown in Fig. 1 is shown, a representation 3 ready, as is usual for bank notes. The representation 3 can include, for example, a graphically designed background 4, a moiré image 5, a hologram 6, a value indication 7 and a serial number 8. It is also possible to provide a window 19 in which the bank note is partially transparent. See-through effects can be present in window 19, for example, ie a motif visible on the front is complemented by a motif visible on the back when looking through to form a further motif.

The substrate body 2 with the height H and the width B is made up of at least one film of the same dimensions as the sectional views of FIG Figs. 2 to 4 , which show embodiments for the bank note 1, can be seen in more detail. The sectional views of the Figures 2 to 4 differ with regard to the embodiment of the banknotes. What they have in common is that an embossed structure is provided which, in some variants, includes microlenses. In the embodiments of Figures 2 to 4 the substrate body comprises two foils, in the embodiment of FIG Fig. 5 a slide.

In the sectional view of the Fig. 2 lies a top 9, which is in Fig. 1 can be seen above, and a back 10 is below. The substrate body 2 comprises a first film 11, the outwardly facing surface of which forms the front side 9, and a second film 12, the outside of which forms the rear side 10. A dielectric 13 is located as an intermediate layer between the first foil 11 and the second foil 12.

A first embossed structure 14 is formed on the inside of the first film 11 and a second embossed structure 15 on the inside of the second film 12. The embossed structures are designed with a laterally varying structure and / or metallization. In detail, depending on the embodiment, they comprise a different selection of microlenses 16 which interact with a microimage structure 18 arranged in an intermediate layer 17 and, for example, form a known moiré magnifier in order to generate the moiré image 5. Furthermore, a hologram structure or other microstructure 24 can be provided in the embossed structure 14. It is also possible to use a Form mirror structure 20, which consists of differently inclined micromirrors and thus creates a tilting effect. Furthermore, the embossed structures can also have subwavelength structures 21 with a laterally varying profile and / or laterally varying periodicity. Details for the implementation of the subwavelength structure can be found in the literature references already mentioned: DE 102011115589 A1 , WO 2012/156049 A1 , WO 2014/023415 A1 , DE 102009012300 A1 , Y. Yu, L. Wen, S. Song, and Q. Chen, "Transmissive / Reflective Structural Color Filters: Theory and Applications," Journal of Nanomaterials, vol. 2014, Article ID 212637, 17 pages, 2014. doi: 10.1155 / 2014/212637 and H. Lochbihler, "Colored images generated by metallic subwavelength gratings," Opt. Express 17, 12189-12196 (2009 ). With regard to the structure of the subwavelength structures, the disclosure content of these publications is fully incorporated here.

The structure of the microstructures 24 further differs from the subwavelength structures 20, which have structure widths in the range of the light wavelength. The microstructures 24 are significantly longer (from 0.6 microns) and produce z. B. diffractive effects, while the subwavelength structures cause interference effects of the light waves.

The various embossed structures can be selected depending on the embodiment and the desired design for the bank note 1. In particular, the in Fig. 2 The assignment made to the foils 11 and 12 is purely exemplary.

For many embossed structures it is necessary that the embossed structures are metallized in order to create an effect or an image. In the area of the window 19, this metallization has been removed again after application or not available from the start. The distance can e.g. B. be done with the help of a laser or using a wash dye. The same applies to an individualization of the bank note 1 by the serial number 8, which is also produced by an individual removal of the metallization.

The first embossed structure 14 on the inside of the first film 11 is visible when viewed from the front side 9 and forms the representation 3, so z. B. both the background 4, as well as the image 5 and the value 7 - either alone or in conjunction with conventional printed images on the outside of the film. The hologram 6 is z. B. generated by an area of the embossed structure which has a suitable periodicity. As is known, holograms are formed by grating areas or microstructures with periods of 0.6 to 2 μm.

The first and second films 11 and 12 are transparent. They are preferably each a plastic film. During the production of the substrate body 2, the foils 11 and 12 are embossed with the embossed structures 14 and 16 and then provided with the metallization, for example by a vapor deposition process. The two foils are then connected to one another via the intermediate layer that forms the dielectric 13, for example by lamination. The dielectric 13 can preferably be a polymer.

In order to deprive the front side 9 and the rear side 10 of the gloss that is customary for foils, which is reinforced by the metallization of the embossed structures, the outer surfaces of the foils 11, 12 are provided with a matting, for example in the form of a coating, in embodiments not shown in detail which creates a slightly scattering surface.

In order to prevent the embossed structure 15 on the second film from shining through when viewed from the front, it is preferable to configure the intermediate layer 17 to be opaque. this shows Fig. 3 . The opacity of the material between the embossed structures 14 and 15 ensures that when the front side 9 is viewed, only the embossed structure 14 contributes to the display, and when viewed from the rear side 10, only the embossed structure 15. The opacity can be achieved, for example, by an opaque intermediate layer 17, preferably an opaque white or a colored adhesive layer or lamination layer can be implemented. In a further embodiment, the opaque layer 17 can be provided with a locally varying opacity.

If the structural body 2 of the bank note 1 has a window 19, the opaque layer 17 is of course interrupted in this area by a transparent window 23, as is the case Fig. 4 shows.

Fig. 5 shows an embodiment with only one film 11, which is provided with the embossed structures 14, 15 on both sides. At least one of the embossed structures is covered with a cover layer 22, which levels the top. The embodiment of FIG Fig. 5 that the embossing structure can have a gap on one of the two sides or on both sides in which no embossing was carried out. When using refractive microlenses 16, a cover with an equalizing cover layer is disadvantageous, since the lens effect could be destroyed. Equalization is possible if reflective lenses, i.e. micro-concave mirrors, are used. To produce the substrate body 2, the embossed structures are preferably produced in one operation in a double embossing system. In general, the production of the value document comprises the following steps:
First, the relief structure for an original is generated with the dimensions of the value document, for example with the height H and the width B of the bank note 1. This relief structure is generated, for example, by means of a laser writing process or a mask process in a photoresist. A stamp is then produced as a master from the original structure, for example by copying the relief structure into a nickel mold by means of galvanic molding or into a photopolymer. With the help of this stamp, an embossing cylinder is now produced which reproduces the relief structure of the original on the surface of the embossing cylinder. The usual steps for producing an embossing cylinder are the galvanic molding of a replica in nickel and mounting the structured nickel foil on an embossing cylinder.

With the embossing cylinder produced in this way, the original structure is then molded into the film in a continuous process on a plastic film web, many times next to one another in UV varnish or by means of a hot embossing process. The film web embossed in this way contains lines transverse to the web direction in which several areas of width B and height H lie next to one another. The lines are repeated along the length of the film. The foil web embossed in this way is then coated with a thin metal layer, preferably aluminum, silver, chromium, copper, gold or alloys thereof. Semimetal layers, for example silicon, germanium, carbon and silicon oxide (preferably with an Si: O ratio of less than one) can also be used. High vacuum vapor deposition by means of vapor deposition or sputtering or other coating processes are suitable as coating processes.

In this way, film webs for the first film 11 and possibly the second film 12 are produced.

In the two-part variant, these are then on their insides, i. H. those sides which contain the metallized embossed structures connected. An internal substrate, for example banknote paper, can also be laminated on. The bank notes 1 produced in this way are then separated by cutting.

The creation of demetallized areas or a window takes place before the two foils are joined. For example, it is possible to print a wash color on the film webs at the appropriate places where windows will later be located before the metallization is carried out. After the metallization, the material and the color are removed by a washing process, as is known to the person skilled in the art. Alternatively, the metallization can be removed by exposure to suitable laser radiation. In this way, the serial numbers 8 can also be incorporated into the film; the material is preferably removed on one side in a pattern corresponding to the serial number 8. The contrast is created later by looking at the inside of the rear film or the inside substrate or dielectric.

The matting can be produced on the film web by laminating a scattering layer onto the outside or by plasma melting the film surface.

1. 1. Wertdokument, wie eine Banknote (1), ein Scheck, eine Kredit- oder sonstige Zahlungskarte, eine Ausweiskarte oder dergleichen, das eine Vorder- (9) und eine Rückseite (10) hat, in Draufsicht mindestens von der Vorderseite (9) eine mit dem unbewaffneten Auge erkennbare Darstellung (3) zeigt, in der Draufsicht bestimmte Abmessungen (B, H) hat und einen Substratkörper (2) aufweist, welcher in der Draufsicht die bestimmten Abmessungen (B, H) hat und aus mindestens einer transparenten Folie (11, 12) aufgebaut ist, die in der Draufsicht ebenfalls die bestimmten Abmessungen (B, H) hat, wobei die von der Vorderseite (9) erkennbare Darstellung (3) durch eine erste, mindestens abschnittsweise metallisierte Prägestruktur (14) erzeugt ist, die an einer Seite der ersten Folie (9) angeordnet ist und eine lateral, also quer zur Draufsichtrichtung, eine variierende Profilierung und/oder Metallisierung hat, wobei die erste, mindestens abschnittsweise metallisierte Prägestruktur (14) auf einer der Vorderseite zuweisenden Folienvorderseite ausgebildet ist und eine zweite, mindestens abschnittsweise metallisierte Prägestruktur (14) auf einer der Rückseite (10) zuweisenden Folienrückseite ausgebildet ist und mind. eine der metallisierten Prägestrukturen (14) mit einer egalisierenden Deckschicht (22) abgedeckt ist.
2. 2. Wertdokument nach Nummer 1, wobei die Prägestruktur (14) Mikrolinsen (16) und/oder Mikrospiegel (20) aufweist.
3. 3. Wertdokument nach Nummer 1 oder 2, wobei die Prägestruktur (14) in Abschnitten als Subwellenlängenstruktur (21) ausgebildet ist und dort eine Periodizität von 150 nm bis 500 nm hat oder dort aperiodisch mit einer Strukturweiten von 150 nm bis 500 nm ausgebildet ist.
4. 4. Wertdokument nach einer der Nummern 1 bis 3, wobei zwischen den Prägestrukturen (14, 15) mindestens ein opaker Abschnitt (17) vorgesehen ist.
5. 5. Wertdokument nach Nummer 4, wobei der Abschnitt (17) eine lateral strukturierte Opazität hat.
6. 6. Wertdokument, wie eine Banknote, ein Scheck, eine Kredit- oder sonstige Zahlungskarte, eine Ausweiskarte oder dergleichen, das eine Vorder- (9) und eine Rückseite (10) hat, in Draufsicht mindestens von der Vorderseite (9) eine mit dem unbewaffneten Auge erkennbare Darstellung (3) zeigt, in der Draufsicht bestimmte Abmessungen (B, H) hat und einen Substratkörper (2) aufweist, welcher in der Draufsicht die bestimmten Abmessungen (B, H) hat und aus einer ersten und einer zweiten transparenten Folie (11, 14) aufgebaut ist, die in der Draufsicht ebenfalls die bestimmten Abmessungen (B, H) haben und die miteinander durch eine Zwischenschicht verbunden sind, so dass Innenseiten der Folien zueinander und Außenseiten der Folien von der Zwischenschicht weg weisen, wobei die Außenseite der ersten Folie (11) zur Vorderseite (9) und die Außenseite der zweiten Folie (12) zur Rückseite (10) hin weist, wobei die von der Vorderseite (9) erkennbare Darstellung (3) durch eine erste, mindestens abschnittsweise metallisierte Prägestruktur (14) erzeugt ist, die an der Innenseite der ersten Folie (9) angeordnet ist, und lateral, also quer zur Draufsichtrichtung, eine variierende Profilierung und/oder Metallisierung hat, wobei die Prägestruktur (14) Mikrolinsen (16) und/oder Mikrospiegel (20) aufweist.
7. 7. Wertdokument nach Nummer 6, wobei das Wertdokument (1) in Draufsicht von der Rückseite (10) eine weitere mit dem unbewaffneten Auge erkennbare Darstellung zeigt, dass die von der Rückseite (10) erkennbare Darstellung durch eine zweite, mindestens teilweise metallisierte Prägestruktur (15) erzeugt ist, die an der Innenseite oder Außenseite der zweiten Folie (12) angeordnet ist, mindestens abschnittsweise eine lateral variierende Profilierung und/oder Metallisierung.
8. 8. Wertdokument nach einer der Nummern 1 bis 5 oder nach Nummer 7, wobei die erste und zweite Prägestruktur (14, 15) in gegenüberliegenden Bereichen ein Fenster (19) ausbilden, in dem sich die Darstellung durch die erste Prägestruktur (14) mit der weiteren Darstellung durch die zweite Prägestruktur (15) in Durchsicht zu einem Motiv ergänzt.
9. 9. Wertdokument nach Nummer 8, wobei die erste und zweite Prägestruktur (14, 15) im Bereich des Fensters (19) ein asymmetrisches Profil haben, und in Reflexion ein Motiv erzeugen, das in Durchsicht verschwindet.
10. 10. Wertdokument nach einer der obigen Nummern, wobei die erste Prägestruktur (14) mindestens in einem Bereich als Mikrostruktur (24) mit einer Periode von 500 nm bis 2 µm ausgebildet ist, die ein Hologramm darstellt.

By way of example, the invention can also be characterized as follows:

1. 1. Document of value, such as a bank note (1), a check, a credit or other payment card, an identification card or the like, which has a front (9) and a back (10), in plan view at least from the front (9) shows a representation (3) recognizable with the naked eye, has certain dimensions (W, H) in plan view and has a substrate body (2) which has certain dimensions (W, H) in plan view and consists of at least one transparent film (11, 12) is constructed, which in the top view also has the specific dimensions (W, H), the representation (3) recognizable from the front side (9) being produced by a first, at least partially metallized embossed structure (14), which is arranged on one side of the first film (9) and has a lateral, that is transverse to the plan view direction, a varying profiling and / or metallization, wherein the first, at least partially metallized embossed structure (14) on one of the Vo The foil front facing the rder side is formed and a second, at least partially metallized embossed structure (14) is formed on a foil back facing the rear side (10) and at least one of the metallized embossed structures (14) is covered with an equalizing cover layer (22).
2. 2. Document of value according to number 1, wherein the embossed structure (14) has microlenses (16) and / or micromirrors (20).
3. 3. Document of value according to number 1 or 2, wherein the embossed structure (14) is formed in sections as a subwavelength structure (21) and there has a periodicity of 150 nm to 500 nm or is formed there aperiodically with a structure width of 150 nm to 500 nm.
4. 4. Document of value according to one of numbers 1 to 3, at least one opaque section (17) being provided between the embossed structures (14, 15).
5. 5. Document of value according to number 4, wherein the section (17) has a laterally structured opacity.
6. 6. Document of value, such as a bank note, a check, a credit or other payment card, an identification card or the like, which has a front (9) and a back (10), in plan view at least from the front (9) one with the shows representation (3) recognizable to the naked eye, has certain dimensions (W, H) in plan view and has a substrate body (2) which has certain dimensions (W, H) in plan view and consists of a first and a second transparent film (11, 14), which in the top view also have the specific dimensions (W, H) and which are connected to one another by an intermediate layer, so that inner sides of the foils face one another and outer sides of the foils face away from the intermediate layer, the outer side of the first film (11) facing the front (9) and the outside of the second film (12) facing the rear (10), the representation (3) recognizable from the front (9) being represented by a first, at least section Ttsweise metallized embossed structure (14) is generated, which is arranged on the inside of the first film (9), and laterally, i.e. transversely to the plan view direction, has a varying profiling and / or metallization, the embossed structure (14) microlenses (16) and / or has micromirrors (20).
7. 7. Document of value according to number 6, the document of value (1) in plan view from the rear (10) showing a further representation recognizable to the naked eye that the representation recognizable from the rear (10) by a second, at least partially metallized embossed structure ( 15) is generated on the inside or outside of the second film (12) is arranged, at least in sections a laterally varying profiling and / or metallization.
8. 8. Document of value according to one of numbers 1 to 5 or number 7, wherein the first and second embossed structure (14, 15) form a window (19) in opposite areas in which the representation through the first embossed structure (14) with the further representation supplemented by the second embossed structure (15) in transparency to form a motif.
9. 9. Document of value according to number 8, wherein the first and second embossed structure (14, 15) have an asymmetrical profile in the area of the window (19) and generate a motif in reflection which disappears when viewed through.
10. 10. Document of value according to one of the above numbers, wherein the first embossed structure (14) is designed as a microstructure (24) with a period of 500 nm to 2 μm, which represents a hologram, at least in one area.

List of reference symbols

1

Banknote

2

Substrate body

3

presentation

4th

background

5

Moire image

6th

hologram

7th

Indication of value

8th

serial number

9

front

10

back

11

first slide

12th

second slide

13th

dielectric

14th

first embossing structure

15th

Second embossing structure

16

Microlenses

17th

Intermediate layer

18th

Microimage structure

20th

Micromirrors

21

Subwavelength structure

22nd

Top layer

23

window

24

Microstructure

Claims (15)

Document of value, such as a bank note, a check, a credit or other payment card, an identification card or the like, - which has a front (9) and a back (10), - shows in plan view at least from the front (9) a representation (3) recognizable with the naked eye, - has certain dimensions (B, H) in plan view and has a substrate body (2) which has certain dimensions (B, H) in plan view and is made up of a first and a second transparent film (11, 14), which in the plan view also have the specific dimensions (W, H) and which are connected to one another by an intermediate layer (17) so that inner sides of the foils face one another and outer sides of the foils face away from the intermediate layer (17), - the outside of the first film (11) facing the front (9) and the outside of the second film (12) facing the rear (10), - The representation (3) recognizable from the front side (9) is produced by a first, at least partially metallized embossed structure (14) which is arranged on the inside of the first film (9), and laterally, i.e. transversely to the direction of the plan view, a has varying profiles and / or metallization,
characterized in that - The embossed structure (14) has microlenses (16) and / or micromirrors (20). Value document according to claim 1, characterized in that the value document (1) shows a top view from the back (10) another representation recognizable with the naked eye and that the representation recognizable from the back (10) by a second, at least partially metallized Embossed structure (15) is generated on the inside or Outside of the second film (12) is arranged and at least in sections has a laterally varying profiling and / or metallization. Value document according to Claim 2, characterized in that the first and second embossed structures (14, 15) form a window (19) in opposite areas in which the representation by the first embossed structure (14) and the further representation by the second embossed structure ( 15) added to a motif in review. Document of value according to Claim 3, characterized in that the first and second embossed structures (14, 15) have an asymmetrical profile in the region of the window (19) and, in reflection, produce a motif which disappears when viewed through. Value document according to Claim 3 or 4, characterized in that no metallization is provided in the area of the window (19). Value document according to one of the above claims, characterized in that the first embossed structure (14) is designed as a microstructure (24) with a period of 500 nm to 2 µm, which represents a hologram, at least in one area. Value document according to one of the above claims, characterized in that the intermediate layer (17) is at least partially opaque. Value document according to Claim 6, characterized in that the intermediate layer (17) is structured laterally with regard to its opacity. Value document according to one of the above claims, characterized in that the intermediate layer (17) comprises a banknote paper. Value document according to claim 9, characterized in that the banknote paper has a watermark, the embossed structures (14, 15) forming a window (19) in the area above the watermark, so that the watermark is visible through the window (19). Value document according to one of the above claims, characterized in that there is a layer of color on the film or films (11, 12), or the film (s) (11, 12) is / are colored. Value document according to one of the above claims, characterized in that the intermediate layer (17) is colored. Value document according to one of the above claims, characterized in that the metallization in the form of a pattern individualizing the value document, in particular a serial number, is omitted or removed. Value document according to one of the above claims, characterized in that the metallization consists of a multilayer structure in which one or more layers are metallic. Value document according to one of the above claims, characterized in that the outer surfaces of the foils (11, 12) are provided with a matt finish.

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