EP4263233A1 - Datenträger mit verbundsubstrat mit einem in einem durchsichtsbereich angeordneten sicherheitselement - Google Patents
Datenträger mit verbundsubstrat mit einem in einem durchsichtsbereich angeordneten sicherheitselementInfo
- Publication number
- EP4263233A1 EP4263233A1 EP21839329.6A EP21839329A EP4263233A1 EP 4263233 A1 EP4263233 A1 EP 4263233A1 EP 21839329 A EP21839329 A EP 21839329A EP 4263233 A1 EP4263233 A1 EP 4263233A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- data carrier
- security element
- layer
- see
- outer layers
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
- B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
- B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
- B42D25/30—Identification or security features, e.g. for preventing forgery
- B42D25/351—Translucent or partly translucent parts, e.g. windows
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
- B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
- B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
- B42D25/30—Identification or security features, e.g. for preventing forgery
- B42D25/328—Diffraction gratings; Holograms
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
- B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
- B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
- B42D25/40—Manufacture
- B42D25/45—Associating two or more layers
Definitions
- the invention relates to a data carrier with a composite substrate with a security element arranged in a see-through area.
- the invention also relates to a method for producing such a data carrier.
- Data carriers such as value or ID documents, but also other valuables, such as branded items, are often provided with security elements for protection, which allow the authenticity of the data carrier to be checked and which at the same time serve as protection against unauthorized reproduction.
- see-through security features such as see-through windows in banknotes, are becoming increasingly attractive because, on the one hand, they are easy to recognize, but, on the other hand, they are difficult to counterfeit.
- a continuous opening can be made in a banknote, for example, and this can then be closed by a film that is glued on.
- the film is provided with security features such as a hologram or an optically variable coating.
- See-through windows equipped with security elements can also be provided in composite banknotes, ie banknotes that have a substrate made of two or more layers of paper or foil.
- conventional solutions often have weaknesses with regard to the stability of the security elements in circulation, and there are often technological hurdles in the integration of the security elements in the composite bank note, as well as optical losses as a result of the application or incorporation. Proceeding from this, the present invention is based on the object of specifying a data carrier of the type mentioned at the outset with a visually attractive see-through security element that is highly counterfeit-proof.
- the invention provides a data carrier with a composite substrate, in which a security element is arranged in a see-through area of the composite substrate.
- the composite substrate includes two outer layers of fibrous material and an inner layer of transparent film sandwiched between the outer layers.
- the outer layers have recesses that are arranged at least partially one above the other and thereby define a see-through area in the data carrier.
- the gaps in the outer layers are sometimes also referred to below as openings in the outer layers.
- a security element is arranged between the inner layer and one of the outer layers in the see-through area of the data carrier and completely covers the see-through area.
- the see-through area is structurally reinforced by the security element.
- the complete coverage of the see-through area also ensures that no edges of the security element come to rest in the see-through area, which could otherwise represent a weak point for possible degradation or manipulation.
- the security element is preferably at least partially translucent in the see-through area.
- the security element is translucent in the see-through area and optionally opaque in some areas, but without transparent partial areas.
- the security element can also contain transparent sub-areas, which are advantageously embodied in the form of patterns, characters or a code, for example in the form of negative text, a value number, or a grid motif (window in a window).
- any transparent sub-areas preferably recede significantly in appearance compared to the translucent sub-areas and take up less than 25%, in particular less than 10% or even less than 5% of the area of the see-through area.
- translucency denotes light transmission
- transparency denotes image or visual transmission.
- a translucent but non-transparent element is therefore light-transmissive, but is generally not transparent due to volume or surface scattering, so that objects located behind or below the element cannot be seen from the opposite side.
- Translucent areas of the security element are preferably designed to be at least partially translucent in color and thus have an easily recognizable appearance in transmitted light.
- the color of the translucent areas can be different, in particular in reflected light and transmitted light, as explained in more detail below.
- the security element is preferably designed to be partially reflective in the see-through area, ie it reflects part of the incident light and transmits part of the incident light.
- the reflected portion is preferably between about 20% and about 80%
- the transmitted portion is correspondingly preferably between about 80% and about 20%.
- the light absorption by the security element is preferably small and is below 5%, in particular below 2% or even below 1%.
- the security element comprises a carrier film and a functional coating arranged on the carrier film.
- the carrier film points to the outer layer of the composite substrate and the functional coating to the inner layer of the composite substrate, so that the functional coating lies between the inner layer of the composite substrate and the carrier film.
- the functional coating is particularly well protected from external influences and manipulation by this sandwich arrangement.
- the carrier film stabilizes the security element so that it is easy to process.
- the corrosion resistance of the security element is significantly improved by the carrier film compared to conventional forms of implementation.
- the carrier film of the security element can have an adhesive layer, by means of which the security element is bonded to the named outer layer of the composite substrate.
- the adhesive layer can be left out, in particular in the area of the cutout in the outer layer, in order not to impair the visual appearance there.
- the carrier film of the security element is preferably transparent, but can also be translucent. For example, it can be a PET film with a thickness of 6 ⁇ m to 12 ⁇ m.
- the functional coating includes an embossed structure, in particular an embossed embossing lacquer layer.
- the functional coating advantageously contains a metallization, in particular a metallization with demetallized areas in the form of negative markings.
- the metallization can advantageously be formed by aluminum, copper, chromium, silver and/or various, in particular colored, eegations. It goes without saying that the security element as a whole is also translucent in the areas of the negative identifiers, for example by providing a further translucent layer that also covers the negative identifiers.
- the functional coating can further alternatively or additionally comprise an optically variable coating, with coatings having a golden hue viewed from above and a colorful hue, in particular blue, having been proven in practice.
- Gold-blue coatings of this type can be formed, for example, by a multi-layer system with two partially reflecting layers and a dielectric spacer layer in between.
- an advantageous structure can include two semi-transparent metallic layers made of aluminum with a layer thickness in a range from 5 nm to 20 nm, preferably in a range from 10 nm to 14 nm, and an intermediate dielectric SiCb layer whose layer thickness is required for the provision of a gold/blue color change is advantageously in the range from 80 nm to 100 nm or from 210 nm to 240 nm.
- a structure with two semi- transparent metallic layers of silver with a layer thickness in the range from 15 nm to 25 nm and a dielectric SiCb layer in the above-mentioned thickness range can be used to generate a gold/blue color change.
- the functional coating can further alternatively or additionally contain a color-shifting thin-layer structure, a hologram or another diffraction structure, a matte structure, a micromirror array, a microlens array, a moth-eye structure, a sub-wavelength structure or a combination of these elements.
- the security element can also contain other intermediate layers, in particular adhesive or primer layers, which, however, are not essential for the present invention and are therefore not explained in more detail.
- the security element can be translucent in the entire surface area of the see-through area, but can also be made opaque in partial areas be. Since the functional coating does not have any transparent partial areas in an advantageous embodiment, the security element does not allow a view through the composite banknote in the see-through area.
- the see-through area covered by the security element can thus be easily distinguished from a simple transparent window or a continuous opening in the data carrier, even for non-professionals, and thus enables a strong but easily recognizable and verifiable authenticity protection.
- the security element can be embodied symmetrically and, apart from a reflection, can have the same appearance when viewed from opposite sides of the data carrier.
- the security element can advantageously also be designed and constructed to show different appearances when viewed from opposite sides of the data carrier.
- the appearance of the security element in transmission is preferably the same apart from a reflection, but can also be designed differently in other configurations.
- the gaps in the outer layers of the composite substrate are arranged congruently one above the other.
- the see-through area formed by the cutouts is then also congruent with the cutouts.
- the cutouts in the outer layers of the composite substrate differ from one another in shape and/or size.
- the recesses can also have the same shape and size, but be offset from one another.
- the see-through area is given by the overlapping area of the recesses and is not congruent with at least at least one of the recesses. In the areas of a gap outside the see-through area, depending on the position of the security element, the viewer can look at the functional coating of the security element or at the back of the opposite outer layer.
- the security element is preferably in the form of a patch or strip.
- one or both outer layers of the composite substrate are formed by a paper layer or by a fiber composite made of polyolefin, polylactate, polyester, polyamide or mixtures of the polymers mentioned, or by a fiber composite made of polysucrose or mixtures of a polysucrose.
- the middle layer of the composite substrate is advantageously a film layer of an artificial or natural polymer, for example polyolefin, polysucrose, polylactate, polyester, polyamide or coextruded polymers.
- an artificial or natural polymer for example polyolefin, polysucrose, polylactate, polyester, polyamide or coextruded polymers.
- the middle layer of the composite substrate preferably has a layer thickness of between 3 gm and 150 gm.
- One or both of the outer layers of the composite substrate advantageously have a basis weight between 10 g/m 2 and 400 g/m 2 , preferably between 20 g/m 2 and 80 g/m 2 .
- the data carrier is preferably a banknote, a passport, an identification card, a tax stamp, a voucher, a certificate, a reference, a document, a product guarantee, a branded item or packaging or outer packaging of a branded item.
- the invention also includes a method for producing a data carrier of the type described, in which a composite substrate is produced with two outer layers made of a fiber material and with an inner layer made of a transparent film arranged between the outer layers, the outer layers being arranged at least partially on top of one another Recesses are provided in order to define a see-through area in the data carrier, and a security element is arranged between the inner layer and one of the outer layers in the see-through area of the data carrier in such a way that it completely covers the see-through area.
- the security element can be translucent in the see-through area and optionally opaque in some areas, but without transparent sub-areas, or can also contain transparent sub-areas, which are in particular in the form of patterns, characters or a code, as already explained in more detail above.
- the security element is preferably connected to the outer layer adjoining the security element by means of a heat seal or self-adhesive process.
- the recesses in the outer layers can advantageously be produced by punching or by means of laser cutting.
- the composite substrate is produced by thermal lamination, lamination, welding, gluing or extrusion.
- FIG. 1 shows a schematic representation of a composite banknote which has a number of different security features
- Fig. 2 shows the composite bank note of Fig. 1 in a vicinity of the look-through area in an exploded view, schematically in cross-section,
- FIG. 3 shows a composite banknote according to another embodiment of the invention, also in an exploded view
- Fig. 4 shows the appearance of the banknote of Fig. 3 in reflected light, in (a) when viewed from the front and in (b) when viewed from the back, and 5 shows a composite bank note according to a further exemplary embodiment of the invention in an exploded view.
- FIG. 1 shows a schematic representation of a compound banknote 10, which has a number of different security features and is equipped, for example, with printing elements 12, a watermark 14 and a security element 18 which is arranged in a see-through area 16 and embedded inside the banknote 10 shows different visual appearances.
- Fig. 2 shows the composite banknote 10 in the vicinity of the look-through area 16 schematically in cross section, with the various components of the composite banknote being shown more clearly shown in an exploded view.
- the compound banknote 10 contains three main layers, with a first, upper layer 20 being formed by a fiber composite, for example a paper layer, a second, middle layer 22 being formed by a film layer, for example a polyamide layer, and a third , Lower layer 24 which, like the upper layer 20, is formed by a fiber composite, for example a paper layer.
- the top and bottom layers differ essentially in the design printed on them, which defines a front and a back of the bank note, so that the roles of the top and bottom layers can also be reversed.
- the upper and lower layers 20, 24 therefore also become simple referred to as the outer layers of the composite banknote, which are each formed by a fiber composite, while the middle layer represents an inner layer, which is formed by a foil layer.
- the use of paper layers allows, in particular, the provision of real watermarks 14 in the compound bank note 10.
- the outer layers of paper 20, 24 are each provided with an opening 26, 28 which are arranged in such a way that they at least partially overlap one another and define the said see-through area 16 in the bank note 10 through this overlap.
- the exemplary embodiment shows a special design in which the two openings 26, 28 of the same shape and size are arranged congruently one above the other, so that the see-through area 16 also has the shape and size of the openings 26, 28.
- a security element 18 which is formed by a film security element 30 in the exemplary embodiment, is introduced into the bond between the middle film layer 22 and the lower paper layer 24 .
- the film security element 30 has a larger area than the see-through area 16 and is arranged in the composite such that it completely covers the see-through area 16 .
- the film security element 30 can be a few millimeters larger than the see-through region 16 in each direction and can be arranged in the composite centered on it, as illustrated in FIG. 1 .
- the film security element 30 embedded in the composite contains a transparent carrier and protective film 32 on which a partially reflective and translucent functional coating 34 is arranged.
- the film security element 30 is introduced into the assembly in such an orientation that the carrier and protective film 32 faces the lower layer 24 and the functional coating 34 faces the middle film layer 22 .
- the functional coating 34 is thus protected on both sides by a film 32 or 22 from external influences and manipulation.
- the foil security element 30 can be introduced in the same way between the middle foil layer 22 and the upper paper layer 24, but then advantageously in an orientation in which the carrier and protective foil 32 faces the upper layer 24 and the functional coating 34 faces the middle Film layer has, so that the functional coating 34 is protected again on both sides by a film 32 and 22 respectively.
- the functional coating 34 reflects a portion of the incident light and thereby produces a reflected appearance of the bank note in the see-through region 16 when viewed from both sides. This appearance can differ particularly when viewed from the front, ie the side of the upper layer 20, and when viewed from the rear, ie the side of the lower layer 24, so that two different reflected light appearances are produced.
- the functional coating 34 also transmits a part of the incident light and thereby produces an appearance of the bank note in transmission in the see-through region 16 when viewed in transmitted light.
- the appearance in transmission can be identical except for a reflection when viewed from the front and the back, but can also be designed differently.
- the functional coating 34 can contain, for example, a hologram with a coat of arms motif, the relief structure of the hologram being coated with a gold-blue effect layer as a reflection-increasing layer, which gives the hologram motif a gold-colored appearance in incident light and a blue appearance in transmitted light.
- the functional coating 34 can be translucent over the entire surface of the see-through area, but in other designs it can also contain opaque sub-areas, or it can also contain transparent sub-areas, in particular in the form of patterns, characters or a code.
- the functional coating 34 is neither completely opaque in the see-through area 16 nor does it have transparent partial areas, that is to say partial areas which are not only translucent but even transparent to the eye. Since the functional coating 34 is not completely opaque, the see-through region 16 has an appearance in transmitted light. Since there are no transparent sub-areas, it is not possible to look through the composite bank note 10 directly, so that the see-through area 16 can easily be distinguished from a simple transparent window or a continuous opening, even for non-professionals.
- FIG. 3 shows a compound banknote 50 in which the opening 26 in the upper layer 20 is designed to be larger than the opening 28 in the lower layer 24.
- the overlapping part of the two openings, which in this exemplary embodiment is congruent with the opening 28 of the bottom layer defines said see-through area 16 of banknote 50.
- the film security element 30 embedded in the composite is designed and introduced in such a way that it covers at least the see-through area 16 . In the exemplary embodiment in Fig. 3, however, the film security element 30 not only covers the see-through area 16, but even the larger area of the upper opening 26.
- the film security element 30 contains, in addition to the transparent carrier and protective film 32, a partially reflective and translucent functional coating 34, which is formed by a transparent, embossed embossing lacquer layer 40, a coating 42 containing a metal layer, and a transparent adhesive layer 44.
- the foil security element 30 is introduced into the assembly in such an orientation that the carrier and protective foil 32 faces the lower layer 24 and the functional coating 34 faces the middle foil layer 22, so that the functional coating 34 is covered on both sides by a foil 32 or 22 is protected.
- the side of the film 32 opposite the functional coating 34 can be provided with an adhesive layer (not shown), which can be cut out in the area of the opening 28 in order to ensure a particularly clear visual appearance there as well.
- the security element 30 can be on the Show a coat of arms motif 52 on the front in reflected light, as well as microwriting 54 running around the edge area.
- the sizes of embedded security element 30 and rear opening 28 are indicated in dashed lines. Viewed from the rear, only the heraldic motif 52 is visible in reflected light through the smaller opening 28, but not the microscript 54, as shown in Figure 4(b). The size of the embedded security element 30 is indicated with dashed lines.
- the see-through area 16 is congruent with the smaller, lower opening 28, only the coat of arms motif 50 is visible in transmitted light, but with a different color impression compared to the incident light image.
- the coating 42 containing a metal layer can represent a gold-blue effect layer, so that the coat of arms motif 50 has a gold-colored appearance in reflected light and a blue appearance in transmitted light.
- other translucent coatings can also be used for the metal-layer-containing coating, such as color-shifting structures or translucent metal layers, as described in more detail above.
- FIG. 5 shows a composite bank note 60 in which the two openings 26, 28 are offset from one another but overlap.
- the overlapping area of the two openings 26, 28 defines the see-through area 16 of the banknote 60.
- the film security element 30 embedded in the composite is shown only schematically in the figure with a transparent carrier and protective film 32 and a partially reflective and translucent functional coating 34, with the carrier and protective film 32 pointing to the lower layer 24 and the functional coating 34 to the middle film layer 22 , so that the functional coating 34 is protected on both sides by a film 32 and 22 respectively.
- the foil security element 30 is designed in shape and size and is introduced into the composite in such a way that it covers the see-through area 16 and the area of the upper opening 26 , but not the entire area of the lower opening 28 .
- the functional coating 34 of the film security element 30 is visible on the front of the banknote 60 in incident light in the entire surface of the upper opening 26 (areas 16 and 62), while on the back in incident light the functional coating 34 of the film security element 30 is essentially only visible in the see-through region 16 in the lower opening 28 is visible. Outside the see-through area, the viewer looks at the lower opening 28 in area 64 through the middle film layer 22 to the back of the top layer 20 and sees, for example, the white paper color thereof. In transmitted light, the appearance of the security element results from the partial surface of the functional coating 34 covering the see-through region 16.
- the three appearances namely the front or rear appearance in reflected light and the appearance in transmitted light, therefore have a common component which is formed by the partial surface of the functional coating 34 covering the see-through region 16 .
- the color appearance of this common component can differ, in particular in reflected light and transmitted light, as already explained above.
- the front appearance in reflected light includes another partial view 62 of the functional coating 34
- the rear appearance includes a partial view 64 of the back of the paper ply 20.
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Credit Cards Or The Like (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102020007728.5A DE102020007728A1 (de) | 2020-12-17 | 2020-12-17 | Datenträger mit Verbundsubstrat mit einem in einem Durchsichtsbereich angeordneten Sicherheitselement |
| PCT/EP2021/025493 WO2022128152A1 (de) | 2020-12-17 | 2021-12-13 | Datenträger mit verbundsubstrat mit einem in einem durchsichtsbereich angeordneten sicherheitselement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4263233A1 true EP4263233A1 (de) | 2023-10-25 |
Family
ID=79283125
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP21839329.6A Pending EP4263233A1 (de) | 2020-12-17 | 2021-12-13 | Datenträger mit verbundsubstrat mit einem in einem durchsichtsbereich angeordneten sicherheitselement |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP4263233A1 (de) |
| DE (1) | DE102020007728A1 (de) |
| WO (1) | WO2022128152A1 (de) |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2486994B (en) | 2009-08-10 | 2017-03-22 | Innovia Security Pty Ltd | Optically variable devices and method of manufacture |
| DE102009058243A1 (de) | 2009-12-14 | 2011-06-16 | Giesecke & Devrient Gmbh | Dünnschichtelement mit Mehrschichtstruktur |
| FR3005068B1 (fr) * | 2013-04-26 | 2017-05-26 | Arjowiggins Security | Element de securite comportant un hologramme en volume. |
| CA2978793A1 (en) | 2015-03-26 | 2016-09-29 | Ccl Secure Pty Ltd | A security document or token |
| DE102015005446A1 (de) | 2015-04-28 | 2016-11-03 | Giesecke & Devrient Gmbh | Sicherheitselement mit Mehrschichtstruktur |
| DE102016010616A1 (de) | 2016-09-01 | 2018-03-01 | Giesecke+Devrient Currency Technology Gmbh | Sicherheitselement mit mehreren Sicherheitsmerkmalen |
| DE102016015546A1 (de) | 2016-12-27 | 2018-06-28 | Giesecke+Devrient Currency Technology Gmbh | Mehrlagiges Wertdokumentsubstrat |
| DE102018003030A1 (de) | 2018-04-13 | 2019-10-17 | Giesecke+Devrient Currency Technology Gmbh | Sicherheitselement, Verfahren zum Herstellen desselben und mit dem Sicherheitselement ausgestatteter Datenträger |
| DE102018008147A1 (de) * | 2018-10-15 | 2020-04-16 | Giesecke+Devrient Currency Technology Gmbh | Sicherheitselement und mit dem Sicherheitselement ausgestatteter Datenträger |
-
2020
- 2020-12-17 DE DE102020007728.5A patent/DE102020007728A1/de not_active Withdrawn
-
2021
- 2021-12-13 WO PCT/EP2021/025493 patent/WO2022128152A1/de not_active Ceased
- 2021-12-13 EP EP21839329.6A patent/EP4263233A1/de active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| DE102020007728A1 (de) | 2022-06-23 |
| WO2022128152A1 (de) | 2022-06-23 |
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