EP3322595B1 - Data carrier having a perforated portion - Google Patents

Description

The invention relates to a data carrier, in particular a valuable document or a security paper, comprising a data carrier substrate having a perforation region with a front side and a back side, the front side of the data carrier substrate being provided with a film security element in the perforation region.

Data carriers, in particular value documents, are usually provided with security elements for securing purposes, which permit verification of the authenticity of the data carrier and at the same time serve as protection against unauthorized reproduction of the data carrier. As security elements come e.g. Foil security elements into consideration, which have a foil substrate or plastic substrate and are applied by means of an adhesive layer on the data carrier.

To increase the security against counterfeiting, it is known to combine such film security elements with through openings in the value documents.

The WO 95/10420 A1 describes a document of value in which the carrier is provided with a window-like opening, which is closed with an at least partially transparent cover film, wherein the cover, in particular in the region of the window-like opening with additional security features, such as diffraction structures, can be provided.

The WO 2005/025891 A2 describes a data carrier with a foil security element, wherein both the foil security element and the data carrier have a breakthrough area; the Breakthrough areas preferably overlap at least partially, and more preferably they are congruent. In a further variant, the perforation region in the data carrier is covered by another side facing away from the side of the data carrier carrying the film security element.

The WO 2010/000432 A1 describes a document of value with an opening which is closed on one side with a translucent film. To increase the security against counterfeiting, both the upper side and the lower side of the document of value are covered with a translucent coating, which is preferably made over the entire surface. Preferably, the coatings are each independently extruded or laminated.

The WO 2011/015622 A1 describes a document of value having an opening which is closed on one side with an at least partially translucent or transparent film, wherein on the opposite side of the film of the document of value in the region of the opening and substantially in the region of the film surface is a coating, wherein the coating within the Opening does not exist or essentially does not exist.

The WO 2014/108329 A1 describes a method for producing an endless paper web for the production of security and value documents. The paper web is first provided with a through opening. Subsequently, register-accurate application of a film with applied to the paper web security features. Experimental studies in which the circulation resistance of documents of value was simulated by contacting a value document-like test substrate with dirt and mechanical stress led to the result that the film applied above a through opening in the test substrate is subject to rapid destruction under extreme test conditions.

document WO 2006/056089 A2 discloses a data carrier according to the preamble of claim 1.

Based on this, the present invention has the object, a generic data carrier in such a way that the disadvantages of the prior art and in particular the protection against counterfeiting further increased.

This object is achieved by the feature combinations defined in the independent claim. Further developments of the invention are the subject of the dependent claims.

Summary of the invention

Data carrier according to independent claim 1. The second, recognizable in transmitted light appearance of the film security element may in particular be in a sense context with the breakthrough area motif of the data carrier substrate. Furthermore, the second, visible in transmitted light appearance of the film security element together with the perforation area motif of the data carrier substrate produce a combination image.

Detailed description of the invention

A reflection in incident light is, in the sense of this invention, an illumination of the security element from one side and a viewing of the security element from the same side. A reflection in reflected light is thus present, for example, when the front of the security element is illuminated and also viewed.

A reflection in the transmitted light is in the sense of this invention an illumination of a security element from one side and a view of the security element from another side, in particular the opposite side. A reflection in transmitted light is thus, for example, when the back of the security element illuminated and the front of the security element is considered. The light thus shines through the security element.

The value document mentioned in the present description can be, for example, a banknote, in particular a paper banknote, a polymer banknote or a film composite banknote, a share, a bond, a certificate, a coupon, a check, a high-quality admission ticket, but also a banknote An authorization card, an identity card or a pass personalization page.

The film security element mentioned in the present description may be e.g. a patch or label, a (continuous) strip, or an (endless) thread.

According to the invention, it is provided to form the opening region of the data carrier substrate by means of a plurality of openings breaking through the data carrier substrate, which together form an aperture region motif. It is preferred that the apertured recesses forming the aperture region motif be created in the data carrier substrate by the action of laser radiation on the data carrier substrate (i.e., by laser cutting).

The data carrier substrate is in particular a paper substrate or a paper-like substrate.

The breakthrough area motif may be in the form of a pattern or an image, in the form of characters or in the form of an encoding.

In a preferred variant, the breakthrough area motif is a so-called macroscopic breakthrough area motif, which is composed by a plurality of so-called microscopic erupting recesses. The microscopic openings can be in the form of raster elements, for example in the form of a dot matrix and / or line raster. In particular, a line grid may be formed by parallel lines, approximately parallel lines, divergent lines, or a combination of the aforementioned types.

As used herein, the term "microscopic" is not to be understood as meaning "micrometer-sized" or the like, but is merely to be understood as relative. The microscopic apertures are each to the viewer's naked eye, i. without the use of optical aids, perceptible and, in the case of the above preferred variant, give an overall picture, i. a macroscopic breakthrough area motif.

In a further preferred variant, the perforation region motif is composed by a plurality of macroscopic breakthrough recesses. In particular, the macroscopic erupting recesses form a pattern or an image or a part of an image, a character or a string or an encoding.

In a further preferred variant, the perforation region motif is assembled by one or more macroscopic breakthrough recess (s) on the one hand and by a plurality of microscopic breakthrough recesses on the other hand. The macroscopic erupting recess (or the plurality of macroscopic erupting recesses) thereby forms in particular a pattern or an image or a part of an image, a character or a character string or an encoding. The microscopic apertures may be in the form of raster elements, as described above.

In all configurations, the microscopic erupting recesses may preferably have a dot size (in the case of a dot screen) or a line width (in the case of a line screen) having a width in a range of 0.05 mm to 1 mm, in particular in a range of 0.1mm to 0.4mm. The distance between the adjacent microscopic break-through recesses (center-center) is preferably in a range of 0.05 mm to 1 mm.

The aperture region of the data carrier substrate is advantageously produced by the action of laser radiation (or laser cutting), as in the US Pat WO 2010/072329 A1 and in the WO 2011/154112 A1 described.

It has been found that filigree breakthrough areas in the data carrier substrate that result in very thin (paper) lands are extremely sensitive to mechanical damage. Surprisingly, the one-sided application of a film element by means of an adhesive layer leads to a significantly extended circulation resistance of the data carrier substrate. In addition, it has been found that the perforation region of the data carrier substrate on the one hand and the film element on the other hand formed by means of a plurality of breakthrough recesses stabilize each other against mechanical wear and thus are more robust against destruction. In particular, a film element, which is applied by means of an adhesive layer above an opening region of a data carrier substrate formed by means of a plurality of through-breaking recesses, is significantly more robust to destruction than a film element which is applied by means of an adhesive layer above a perforation region of a data carrier substrate formed by a single opening.

In addition, it is possible by means of the data carrier structure according to the invention, the visual appearance of the film element or Adjust the transparency security element to the visual appearance of the breakthrough area motif of the data carrier substrate.

An even better protection of the opening area formed in the data carrier substrate can be ensured by providing a film element both on the front side and on the back side.

• einer reflektierenden Schicht (insbesondere einer metallischen, reflektierenden Schicht);
• einer semitransparenten (Spiegel-)Schicht (die insbesondere von der Gruppe bestehend aus Al, Ag, Ni, Cr, Cu, Au und einer Legierung eines oder mehrerer der vorstehend genannten Elemente gewählt ist); und
• einer zwischen der reflektierenden Schicht und der semitransparenten (Spiegel-)Schicht angeordneten dielektrischen Schicht,

wobei sich die Farbe des mehrschichtigen Aufbaus mit der Änderung des Betrachtungswinkels ändert.A preferred film security element comprises, for example, an interference-capable, multilayered structure with

• a reflective layer (especially a metallic reflective layer);
• a semitransparent (mirror) layer (particularly selected from the group consisting of Al, Ag, Ni, Cr, Cu, Au and an alloy of one or more of the above elements); and
• a dielectric layer disposed between the reflective layer and the semitransparent (mirror) layer,

wherein the color of the multi-layered structure changes with the change of the viewing angle.

The first appearance of the interference-capable, multi-layered construction which can be recognized by the front side of the data carrier in incident light and the second appearance of the interference-capable, multilayered structure which can be seen in transmitted light when the front side of the data carrier is viewed can advantageously be recesses in the reflective layer and / or the semitransparent layer be generated. Such a film security element with different incident light / transmitted light appearance is from the WO 2009/149831 A2 known. For example, the semi-transparent layer may comprise a plurality of grid-like recesses, in their entirety result in a character, a picture or a pattern. The pattern produced in this way is visible in reflected light and disappears in transmitted light. Alternatively and / or additionally, a different incident light / transmitted light appearance of the multilayer structure can be achieved by combining the structure with a relief structure, in particular a diffractive relief structure, a microoptical relief structure or a sublambda structure.

• die beiden semitransparenten Spiegelschichten werden bevorzugt von Al oder Ag gewählt; die dielektrische Schicht ist insbesondere eine SiO₂-Schicht;
• im Falle, dass jede der beiden semitransparenten Spiegelschichten auf Al beruht, liegt die jeweilige bevorzugte Schichtdicke in einem Bereich von 5 nm bis 20 nm, insbesondere bevorzugt in einem Bereich von 10 nm bis 14 nm; die dielektrische SiO₂-Schicht hat vorzugsweise eine Schichtdicke in einem Bereich von 50 nm bis 450 nm, weiter bevorzugt in einem Bereich von 80 nm bis 260 nm, wobei die Bereiche von 80nm bis 100nm und von 220nm bis 240nm speziell für die Bereitstellung eines Gold/Blau-Farbwechsels besonders bevorzugt werden;
• im Falle, dass jede der beiden semitransparenten Spiegelschichten auf Ag beruht, liegt die jeweilige bevorzugte Schichtdicke in einem Bereich von 15 nm bis 25 nm; die dielektrische SiO₂-Schicht hat vorzugsweise eine Schichtdicke in einem Bereich von 50 nm bis 450 nm, weiter bevorzugt in einem Bereich von 80 nm bis 260 nm, wobei die Bereiche von 80nm bis 100nm und von 220nm bis 240nm speziell für die Bereitstellung eines Gold/Blau-Farbwechsels besonders bevorzugt werden.

A further preferred film security element comprises, for example, a multilayer structure with two semitransparent layers and a dielectric layer arranged between the two semitransparent layers, the multilayer structure having different hues when viewed in reflected light on the one hand and when viewed in transmitted light, in particular when viewed in the Reflected light appears gold-colored and shows a blue hue when viewed in transmitted light. The two different shades are in particular complementary colors. Such a multilayer structure is based in particular on two semitransparent mirror layers and a dielectric layer arranged between the two semitransparent mirror layers. Such a multi-layered structure, which appears golden when viewed in reflected light and shows a blue hue when viewed in transmitted light, is for example from the WO 2011/082761 A1 known. Particularly suitable as a semitransparent mirror layer is a metal selected from the group consisting of Al, Ag, Ni, Cr, Cu, Au and an alloy of one or more of the aforementioned elements, Al or Ag being preferred as the semitransparent mirror layer, and Al is particularly preferred. Suitable multi-layered structures with two semitransparent mirror layers and one between the two Semitransparent mirror layers arranged dielectric layer preferably have the following physical nature:

• the two semitransparent mirror layers are preferably selected from Al or Ag; the dielectric layer is in particular an SiO ₂ layer;
• in the case where each of the two semitransparent mirror layers is based on Al, the respective preferred layer thickness is in a range of 5 nm to 20 nm, particularly preferably in a range of 10 nm to 14 nm; the dielectric SiO ₂ layer preferably has a layer thickness in a range of 50 nm to 450 nm, more preferably in a range of 80 nm to 260 nm, with the ranges of 80 nm to 100 nm and 220 nm to 240 nm being especially suitable for providing a gold / Blue color change are particularly preferred;
• in the case where each of the two semitransparent mirror layers is based on Ag, the respective preferred layer thickness is in a range of 15 nm to 25 nm; the dielectric SiO ₂ layer preferably has a layer thickness in a range of 50 nm to 450 nm, more preferably in a range of 80 nm to 260 nm, with the ranges of 80 nm to 100 nm and 220 nm to 240 nm being especially suitable for providing a gold / Blue color change are particularly preferred.

• im Auflicht Magenta, im Durchlicht Blau-Grün;
• im Auflicht Türkis, im Durchlicht Orange-Gelb;
• im Auflicht Gold, im Durchlicht Blau-Violett;
• im Auflicht Silber, im Durchlicht Violett.

The aforementioned multilayered layer structures not only enable the production of a semitransparent functional layer, which appears golden when viewed in reflected light and shows a blue hue when viewed in transmitted light, but depending on the choice of the layer thickness, in particular of the dielectric layer further color changes can be generated, eg

• magenta in reflected light, blue-green in transmitted light;
• in incident light turquoise, in transmitted light orange-yellow;
• in reflected light gold, in transmitted light blue-violet;
• in reflected light silver, in transmitted light violet.

Another preferred foil security element comprises e.g. a liquid crystal layer which shows a different color when viewed in reflected light as when viewed in transmitted light. Alternatively and / or additionally, a different reflected-light / transmitted-light appearance can be achieved by combining the liquid-crystal layer with a relief structure, in particular a diffractive relief structure, a micro-optical relief structure or a sublambda structure.

Another preferred film security element comprises, for example, a printing layer having an effect pigment composition which, when viewed in reflected light, exhibits a different color than when viewed in transmitted light, in particular a gold / blue color change, a gold / violet color change, a green-gold / Magenta color change, violet / green color change, or silver / opaque color change. Such inks are eg in the WO 2011/064162 A2 described. Alternatively and / or additionally, a different reflected-light / transmitted-light appearance can be achieved by combining the printed layer with a relief structure, in particular a diffractive relief structure, a microoptical relief structure or a sublambda structure.

Further exemplary embodiments and advantages of the invention are explained below with reference to the figures, in the representation of which a representation true to scale and proportion has been dispensed with in order to increase the clarity.

Figur 1

die Draufsicht auf ein Wertdokument mit einem Durchbrechungsbereich und einem oberhalb des Durchbrechungsbereichs angeordneten Foliensicherheitselement;

Figur 2

die Querschnittansicht eines Wertdokuments gemäß einem Vergleichsbeispiel;

Figur 3

die Querschnittansicht eines Wertdokuments gemäß einem erfindungsgemäßen Beispiel;

Figur 4

einen Teil eines Foliensicherheitselements gemäß einem ersten erfindungsgemäßen Beispiel im Auflicht;

Figur 5

den Teil des Foliensicherheitselements gemäß dem ersten erfindungsgemäßen Beispiel im Durchlicht;

Figur 6

einen Teil eines Papiersubstrats mit einem Durchbrechungsbereich gemäß einem ersten erfindungsgemäßen Beispiel;

Figur 7

das Papiersubstrat und das Foliensicherheitselement gemäß dem ersten erfindungsgemäßen Beispiel (jeweils ein Teil hiervon) im Durchlicht;

Figur 8

die Querschnittansicht eines Wertdokuments gemäß einem weiteren erfindungsgemäßen Beispiel;

Figur 9

einen Teil eines Foliensicherheitselements gemäß einem zweiten erfindungsgemäßen Beispiel im Auflicht;

Figur 10

den Teil des Foliensicherheitselements gemäß dem zweiten erfindungsgemäßen Beispiel im Durchlicht;

Figur 11

einen Teil eines Papiersubstrats mit einem Durchbrechungsbereich gemäß einem zweiten erfindungsgemäßen Beispiel;

Figur 12

das Papiersubstrat und das Foliensicherheitselement gemäß dem zweiten erfindungsgemäßen Beispiel (jeweils ein Teil hiervon) im Durchlicht;

Figur 13

einen Teil eines Foliensicherheitselements gemäß einem dritten erfindungsgemäßen Beispiel im Auflicht;

Figur 14

den Teil des Foliensicherheitselements gemäß dem dritten erfindungsgemäßen Beispiel im Durchlicht;

Figur 15

einen Teil eines Papiersubstrats mit einem Durchbrechungsbereich gemäß einem dritten erfindungsgemäßen Beispiel;

Figur 16

das Papiersubstrat und das Foliensicherheitselement gemäß dem dritten erfindungsgemäßen Beispiel (jeweils ein Teil hiervon) im Durchlicht.

Show it:

FIG. 1

the top view of a document of value with a perforation region and a film security element arranged above the opening region;

FIG. 2

the cross-sectional view of a value document according to a comparative example;

FIG. 3

the cross-sectional view of a value document according to an example of the invention;

FIG. 4

a part of a film security element according to a first example of the invention in incident light;

FIG. 5

the part of the film security element according to the first example of the invention in transmitted light;

FIG. 6

a portion of a paper substrate having an aperture region according to a first example of the invention;

FIG. 7

the paper substrate and the film security element according to the first example of the invention (each a part thereof) in transmitted light;

FIG. 8

the cross-sectional view of a value document according to another example of the invention;

FIG. 9

a part of a foil security element according to a second example according to the invention in incident light;

FIG. 10

the part of the film security element according to the second example of the invention in transmitted light;

FIG. 11

a portion of a paper substrate having an aperture region according to a second example of the invention;

FIG. 12

the paper substrate and the film security element according to the second example of the invention (each a part thereof) in transmitted light;

FIG. 13

a part of a film security element according to a third example of the invention in incident light;

FIG. 14

the part of the film security element according to the third example according to the invention in transmitted light;

FIG. 15

a portion of a paper substrate having an aperture region according to a third example of the invention;

FIG. 16

the paper substrate and the film security element according to the third example of the invention (each a part thereof) in transmitted light.

FIG. 1 shows a document of value 1, in the present example a banknote, in plan view. The banknote 1 has an opening area 2 (shown in dashed lines). The banknote 1 is provided on its front side with a film security element 3, which covers the opening area 2 of the banknote 1 on one side.

FIG. 2 shows a value document 4 according to a comparative example in cross-sectional view (along in the FIG. 1 shown line A-A '). The document of value 4 is based on a paper substrate 5 which has a single opening 6 which breaks through. The recess 6 was produced by punching and is present in the paper substrate 5 when viewed in plan view in the form of a square with the dimensions 1cm x 1cm. The value document 4 is provided on the front with a film security element 7, which covers the breakthrough recess 6 on one side. The film security element 7 is fixed on the paper substrate 5 by means of a marginal adhesive layer (not shown in the figure).

That in the FIG. 2 The document of value 4 shown was subjected to an experimental study in which the circulation resistance of the value document was simulated by contacting the value document with dirt and mechanical stress. The investigation led to the conclusion that under extreme test conditions the part of the film 7, which was located directly above the continuous square opening 6 of the paper substrate 5, was completely destroyed. In the edge region enclosing the square opening 6, the film 7 was still reasonably intact.

FIG. 3 shows a value document 8 according to an example according to the invention in cross-sectional view (along in the FIG. 1 shown line A-A '). The document of value 8 is based on a paper substrate 9 with an opening region 10 which is formed by a plurality of recesses which penetrate the paper substrate 9. In the example, the opening area 10 has the appearance according to FIG. 11 in which the black color designates the areas cut out of the paper by means of laser cutting and the white color designates the areas of paper remaining after the laser treatment. In the example, the paper areas left after the laser treatment form the "macroscopic" string "PL", surrounded by sixteen thin, line-shaped paper webs. The aperture region 10 is present in the paper substrate 9 when viewed in plan view in the form of a square with the dimensions 1cm x 1cm. The value document 8 is provided on the front side with a film security element 11, which covers the opening area 10 on one side. The film security element 11 is fixed on the paper substrate 9 by means of a marginal adhesive layer (not shown in the figure).

That in the FIG. 3 The value document 8 shown was subjected to the same experimental test as in the above comparative example, wherein the circulation resistance of the value document is simulated by contacting the value document with dirt and mechanical stress. The investigation led to the result that, under extreme test conditions, the portion of the film 11 located directly above the aperture area 10 of the paper substrate 9 wears, but is not completely destroyed as in the above comparative example.

FIG. 4 shows the section of a film security element 12 according to a first example of the invention in incident light. When viewing the film security element 12 in reflected light, the observer perceives a brightly sketched area 13 (in the form of a sky) and a darkly sketched area 14 (in the form of a sea with waves).

FIG. 5 shows the section of the film security element 12 when viewed in transmitted light. In addition to the brightly sketched region 13 (in the form of a sky) and the darkly sketched region 14 (in the form of a sea with waves), the viewer perceives the darkly sketched region 15 (in the form of a sun).

That the FIGS. 4 and 5 underlying film security element 12 may, for example, a film substrate (eg, polyethelene terephthalate), which is provided with a three-layer, interference-capable structure, as it is eg in the WO 2009/149831 A2 is described (see in the WO 2009/149831 A2 eg the FIGS. 1 and 5 ).

FIG. 6 shows the aperture area of a paper substrate 16, which with the film security element 12 of FIGS. 4 and 5 should be provided. The paper substrate 16 has a paper area 17 (in FIG FIG. 6 white), from which paper areas 18 have been cut out by punching or by laser cutting. The paper areas 18 together form an aperture area motif (in the form of an island and a palm tree).

FIG. 7 shows the paper substrate 16 of FIG. 6 , which with the foil security element 12 of the FIGS. 4 and 5 is provided, when viewed in transmitted light. The viewer takes in addition to the Appearance of the film security element 12 in transmitted light (see FIG. 5 ) the breakthrough area motif 18 (see FIG. 6 true.

FIG. 8 shows the cross-sectional view of a value document 19 according to another example of the invention. Other than that in the FIG. 3 shown value document 8, the value document 19 of FIG. 8 a paper substrate 20 with an opening portion 21, which is provided both on the front side, as well as on the back in each case with a film security element 23 and a film element 22. In this way, the opening region 21 in the paper substrate 20 is particularly protected against damage. The foil security element 23 can, for example, on the farther in connection with the FIGS. 4 and 5 based film security element 12, which is attached by means of an adhesive layer on the paper substrate 20. The film element 22 may also be a film security element, ie a film element that is provided with security features such as a hologram or security printing. In addition, the film element 22 may be a film security element that is similar to the film security element 23. The interaction of the two films 22 and 23 synergistically increases the appearance of the viewer in transmitted light. In the simplest case, however, the film element 22 may also be a conventional film (without any security features) which is fastened to the paper substrate 20 by means of an adhesive layer.

FIG. 9 shows a film security element 24 according to a second example of the invention when viewed in incident light. The viewer perceives the areas 25 and 26 in the form of a golden color. The area 26 forms the string "50" and appears to the viewer compared with the background 25 in the form of a deceptively true, three-dimensional curved surface.

The film security element 24 comprises a film substrate and a multilayer structure with two semitransparent layers and a dielectric layer arranged between the two semitransparent layers, which appears gold-colored when viewed in reflected light and shows a blue hue when viewed in transmitted light. Such a multilayer construction is known from WO 2011/082761 A1 known. In addition, the multi-layer structure is combined in area 26 with a micro-optical relief structure. The production of a micro-optical relief structure is known in the art (see, for example, the WO 2014/060089 A2 ). In this case, the film substrate is first provided with an embossing lacquer which has a microoptical relief structure in certain areas. Subsequently, the multilayer structure with two semitransparent layers and a dielectric layer arranged between the two semitransparent layers is applied to the embossing lacquer.

FIG. 10 shows the foil security element 24 of FIG. 9 when viewed in transmitted light. The viewer perceives the film in the form of a full-scale, uniform region 27 with a blue hue.

FIG. 11 FIG. 12 shows the aperture region 28 of a paper substrate associated with the film security member 24 of FIG Figures 9 and 10 should be combined. The black color indicates the areas cut out of the paper by means of laser cutting. With white paint in the FIG. 11 denotes the remaining after laser treatment paper areas. In the example, they are left after the laser treatment remaining paper areas the "macroscopic" string "PL", surrounded by sixteen thin, linear paper webs. The area 28 has the shape of a square with the dimensions 1cm x 1cm.

FIG. 12 shows that in the FIG. 11 shown paper substrate 28, combined with the film security element 24 of the Figures 9 and 10 , when viewed in transmitted light. The viewer takes in the FIG. 12 black areas with golden color in the form of a dark background true, in front of which the in the FIG. 12 white areas highlighted with blue hue striking in the form of a bright, visually appealing appearance stand out.

FIG. 13 shows a film security element 29 according to a third example of the invention when viewed in incident light. The viewer perceives the areas 30 and 31 in the form of a golden color. The region 31 forms the string "50" and appears to the viewer as compared to the background 30 in the form of a deceptively real, three-dimensionally curved surface.

The film security element 29 comprises a film substrate and a multilayer structure with two semitransparent layers and a dielectric layer arranged between the two semitransparent layers, which appears gold-colored when viewed in reflected light and shows a blue hue when viewed in transmitted light. Such a multilayer construction is known from WO 2011/082761 A1 known. In addition, the multi-layered structure is combined in area 31 with a micro-optical relief structure. The production of a micro-optical relief structure is known in the art (see, for example, the WO 2014/060089 A2 ).

FIG. 14 shows the foil security element 29 of the FIG. 13 when viewed in transmitted light. The viewer perceives the film in the form of a full-scale, uniform area 32 with a blue hue.

FIG. 15 FIG. 12 shows the aperture region 33 of a paper substrate which is connected to the film security element 29 of FIG FIGS. 13 and 14 should be combined. The black color indicates the areas cut out of the paper by means of laser cutting. With white paint in the FIG. 15 denotes the remaining after laser treatment paper areas. The area shown 33 has the shape of a square with the dimensions 1cm x 1cm.

FIG. 16 shows that in the FIG. 15 shown paper substrate 33, combined with the film security element 29 of the FIGS. 13 and 14 , when viewed in transmitted light. The viewer takes in the FIG. 16 black areas with golden color in the form of a dark background true, in front of which the in the FIG. 16 white areas highlighted with blue hue striking in the form of a bright, visually appealing appearance stand out.

In the above examples, the aperture area in the paper substrate was merely exemplified to have the dimensions 1 cm x 1 cm and the shape of a square. It goes without saying that both the exact dimensions and the exact shape of the opening area (square shape, rectangular shape, trapezoidal shape, round shape, oval shape, archway shape, etc.) can be chosen arbitrarily.

Claims (13)

1. A data carrier (1), in particular a value document or a security paper, comprising a data-carrier substrate (5) having a break-through area (2,10) having a front side and a back side, wherein

   - the front side of the data-carrier substrate is furnished with a foil security element (7) in the break-through area;

   - the break-through area of the data-carrier substrate is formed by a multiplicity of gaps breaking through the data-carrier substrate, which together form a break-through area motif, wherein the break-through area motif is recognizable through the foil security element upon viewing the front side of the data carrier in transmitted light; and

   - the foil security element upon viewing the front side of the data carrier in incident light shows a first appearance and upon viewing the front side of the data carrier in transmitted light shows a second appearance, which supplements with the break-through area motif of the data-carrier substrate,

   characterized in that upon viewing the front side of the data carrier in incident light the break-through area motif is not recognizable and is hidden by the foil security element.
2. The data carrier according to claim 1, wherein the foil security element has an interference-capable multilayer construction having a reflective layer, a semi-transparent layer and a dielectric layer arranged between the reflective layer and the semi-transparent layer, wherein the color of the multilayer construction changes with the changing of the viewing angle.
3. The data carrier according to claim 2, wherein the first appearance of the interference-capable multilayer construction, recognizable upon viewing the front side of the data carrier in incident light, and the second appearance of interference-capable multilayer construction, recognizable upon viewing the front side of the data carrier in transmitted light, is based on gaps in the reflective layer and/or the semi-transparent layer.
4. The data carrier according to claim 1, wherein the foil security element has a multilayer construction having two semi-transparent layers and a dielectric layer arranged between the two semi-transparent layers, wherein the multilayer construction has different color tones upon viewing in incident light on the one hand and upon viewing in transmitted light on the other hand.
5. The data carrier according to claim 1, wherein the foil security element has a liquid-crystal layer which upon viewing in incident light shows a different color than upon viewing in transmitted light.
6. The data carrier according to claim 1, wherein the foil security element has a printed layer having an effect pigment composition which upon viewing in incident light shows a different color than upon viewing in transmitted light.
7. The data carrier according to any of claims 2 to 4, wherein the multilayer construction is combined with a relief structure, in particular a diffractive relief structure, a micro-optic relief structure or a sublambda structure.
8. The data carrier according to claim 5, wherein the liquid crystal layer is combined with a relief structure, in particular a diffractive relief structure, a micro-optic relief structure or a sublambda structure.
9. The data carrier according to claim 6, wherein the printed layer is combined with a relief structure, in particular a diffractive relief structure, a micro-optic relief structure or a sublambda structure.
10. The data carrier according to any of claims 7 to 10, wherein the relief structure leads to an appearance which is visually recognizable merely upon viewing the front side of the data carrier in incident light, but not upon viewing the front side of the data carrier in transmitted light.
11. The data carrier according to any of claims 1 to 10, wherein the breaking-through gaps forming the break-through area motif in the data-carrier substrate are obtainable by the action of laser radiation on the data-carrier substrate.
12. The data carrier according to any of claims 1 to 11, wherein the back side of the data-carrier substrate in the break-through area is furnished with a foil element, in particular a foil security element which is chosen independently of foil security element arranged on the front side of the data-carrier substrate.
13. The data carrier according to claim 12, wherein the back side of the data-carrier substrate in the break-through area is furnished with a foil security element which upon viewing the back side of the data carrier in incident light shows a first appearance and upon viewing the back side of the data carrier in transmitted light shows a second appearance which supplements with the break-through area motif of the data-carrier substrate.

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