EP2566702B1 - Data carrier having polymer substrate and patterned area - Google Patents
Data carrier having polymer substrate and patterned area Download PDFInfo
- Publication number
- EP2566702B1 EP2566702B1 EP11718298.0A EP11718298A EP2566702B1 EP 2566702 B1 EP2566702 B1 EP 2566702B1 EP 11718298 A EP11718298 A EP 11718298A EP 2566702 B1 EP2566702 B1 EP 2566702B1
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- EP
- European Patent Office
- Prior art keywords
- substrate
- data carrier
- region
- motif
- breakthroughs
- 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.)
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- 229920000307 polymer substrate Polymers 0.000 title description 15
- 239000010410 layer Substances 0.000 claims description 112
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- 238000002834 transmittance Methods 0.000 description 38
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Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
- B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
- B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
- B42D25/30—Identification or security features, e.g. for preventing forgery
- B42D25/346—Perforations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
- B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
- B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
- B42D25/40—Manufacture
- B42D25/405—Marking
- B42D25/41—Marking using electromagnetic radiation
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
- B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
- B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
- B42D25/20—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof characterised by a particular use or purpose
- B42D25/29—Securities; Bank notes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
- B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
- B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
- B42D25/30—Identification or security features, e.g. for preventing forgery
- B42D25/333—Watermarks
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
- B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
- B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
- B42D25/40—Manufacture
- B42D25/405—Marking
- B42D25/43—Marking by removal of material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
- B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
- B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
- B42D25/40—Manufacture
- B42D25/405—Marking
- B42D25/43—Marking by removal of material
- B42D25/435—Marking by removal of material using electromagnetic radiation, e.g. laser
-
- 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
-
- B42D2033/04—
-
- B42D2033/06—
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- B42D2033/22—
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- B42D2033/24—
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- B42D2033/30—
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- B42D2035/36—
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- 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
- B42D25/465—Associating two or more layers using chemicals or adhesives
- B42D25/47—Associating two or more layers using chemicals or adhesives using adhesives
Definitions
- the invention relates to a data carrier, in particular a document of value, such as a banknote, identity card and the like, having a polymer substrate which has a motif area with a visual impression which changes in reflected light and / or transmitted light.
- a data carrier in particular a document of value, such as a banknote, identity card and the like, having a polymer substrate which has a motif area with a visual impression which changes in reflected light and / or transmitted light.
- the invention also relates to a method for producing such a data carrier.
- Data carriers such as security, value or identity documents, but also other valuables, are often provided with security features for security purposes, which allow a verification of the authenticity of the data carrier and at the same time serve as protection against unauthorized reproduction.
- the document WO 02/20280 discloses a security document having a substrate of a polymeric material and a motif area.
- the present invention has the object, data carriers of the type mentioned in terms of their visual appearance and in particular their counterfeiting security.
- a generic data carrier in particular a value document, such as a banknote, identification card and the like, contains a substrate made of a polymeric material which has a motif area with a visual impression changed in reflected light and / or transmitted light.
- the motif region has tactile detectable, partial or complete apertures of the substrate and is in the form of a pattern, of characters or a coding.
- the substrate is covered at least in the motif area on both sides by a polymeric cover layer.
- the motif region partially has openings and these partial openings are formed by a multiplicity of dilution lines in the substrate.
- the motif area shows a watermark-like appearance in which the motif shown is hardly recognizable in incident light, ie in reflected light, while it is clearly visible in transmitted light, ie in transmitted light, because of the higher light transmission of the partially perforated areas appears in appearance.
- the partial openings may have a depth Ti according to the following relationship: 0 ⁇ Ti ⁇ SD. That is, the depth Ti of the partial Openings can reach a value which is only slightly smaller than the layer thickness SD of the substrate.
- the partial openings preferably have a depth of about 10 ⁇ m or more. It is understood that the tactility of the material not only depends on the depth T of the (partial) apertures, but e.g. also from the width B of the (partial) openings. It has been shown in practice that the tactility of the subject area is ensured at a depth of about 10 ⁇ m or more and a width of about 100 ⁇ m or more.
- the motif region according to a likewise preferred embodiment has complete apertures and these complete apertures are formed by a plurality of cutting lines in the substrate.
- the motif area In the area of the complete openings, the motif area then represents a viewing area in the data carrier, which can be recognized both when viewed in a top view and in a transparent view.
- the cut lines or dilution lines are preferably formed with a width between 0.05 mm and 1 mm.
- the center-to-center distance is advantageously between 0.05 mm and 1 mm, in particular between 0.3 mm and 0.7 mm, the center-to-center distance being constant (equidistant cutting lines or dilution lines) or can be variable (divergent cut lines or dilution lines).
- the substrate of the data carrier is preferably formed by a plastic film, in particular an opaque plastic film of PET, PP, PE, PA, PC (polycarbonate) or PVC. Unless the substrate is opaque in the sense of the definition given below, it may advantageously have a transmittance less than 10% or even be formed intransparent.
- the layer thickness of the (opaque) plastic film is typically between 4 .mu.m and 100 .mu.m, and in particular about 50 .mu.m. It is understood that the layer thickness of the substrate is selected in particular depending on the type of film material used and the layer structure of the polymer banknote.
- the polymeric cover layers are advantageously transparent or translucent.
- the polymer cover layers are very thin, preferably with a thickness of 12 .mu.m or less, and in particular with a thickness of about 6 .mu.m or less.
- a polymeric topcoat may have a thickness of only about 4.5 microns, thereby providing very good tactility of the motif area.
- a polymeric cover layer is preferably formed by a plastic film, in particular PET, PP, PE, PA, PC or PVC, with a PET plastic film currently being particularly preferred.
- the ink accepting layer which is advantageously opaque, is disclosed in the priority application DE 10 2010 019 194.9 referred to as opaque layer or opaque ink acceptance layer.
- a third transmittance can be assigned to such an opaque ink-accepting layer, whereas a first transmittance can be assigned to the substrate and a second transmittance, which is greater than the first transmittance, to the region of the openings in the substrate. Provided the third transmittance is less than the second transmittance, results in viewing the subject area of the data carrier according to the invention a changed in reflected light and / or transmitted light visual impression.
- the transmittance refers to the transmission of light, in particular to light in the visible wavelength range between 400 nm and 800 nm, i. for light as it is usually perceived by the viewer.
- the transmittance may also relate only to a single wavelength or to other wavelength ranges, for example to the near UV or IR wavelength range following the visible spectral range.
- An opaque layer ideally has a transmittance of 0%, although this value is generally not exactly reached in practice.
- a transparent layer ideally has a transmittance of 100%, although this value is generally not exactly reached in practice.
- a translucent layer preferably has such a transmittance that a viewer can clearly distinguish a translucent layer from an opaque and a transparent layer. Accordingly, a translucent layer has a transmittance that differs sufficiently clearly from the transmittances of an opaque and a transparent layer. In the context of the present application, therefore, a translucent layer preferably has a transmittance of from 10% to 90%, and particularly preferably from 20% to 80%. If the transmittance does not only refer to a single wavelength but to a wavelength range, for example the visible spectral range, this is how it describes the transmittance of the averaged over the respective wavelength range transmittance of the various lying in the wavelength range wavelengths. Preferably, the transmittance in a wavelength region assumes the same value for each wavelength of the wavelength region.
- the transmittance of a layer describes the ratio of transmitted light to incident light as it passes through the layer, for example in the normal direction of the layer.
- An opaque layer in particular an opaque ink acceptance layer in the sense of the present application, is a layer that, when viewed in incident light, in the viewing direction behind the layer, for example, further layers, at least substantially, ideally completely covered, so that they are further behind Structures are no longer perceived by a viewer.
- the term "opaque” primarily refers to observation in incident light, this optical property again referring to the relevant wavelength or the relevant wavelength range.
- the relevant wavelength range is typically the visible spectral range between 400 nm and 800 nm, but may alternatively or additionally also refer to the adjacent wavelength ranges in the near UV or IR range.
- an opaque layer is not necessarily intransparent, but may have a transmittance greater than 0%.
- An opaque layer in particular an opaque ink receiving layer on at least one of the polymeric cover layers of the data carrier according to the invention, has such properties. These are the material, the layer thickness and others Properties of the opaque layer, especially the opaque ink receiving layer chosen suitably.
- the opaque ink receiving layer is preferably a layer which enables the physical drying or film formation of oil-based printing inks and / or printing inks containing aqueous and / or organic solvents and / or cationic or free-radically curing inks.
- the opaque ink receiving layer can be prepared on an aqueous basis and / or based on organic solvents.
- the opaque ink receiving layer may further be present as a single layer or formed in the form of a plurality of individual layers, which may differ with respect to the subject matter.
- the total layer thickness of the opaque ink-accepting layer may preferably be in a range of 2 ⁇ m to 15 ⁇ m.
- the opaque ink receiving layer preferably contains self-crosslinking resins and / or at least two components to be crosslinked.
- the first component may preferably be selected from alkoxysilanes, isocyanates, diimides, aziridines and glycidic ethers.
- the second component may preferably be selected from polyurethanes, urethane acrylates, polyesters, polyethers, polyvinyl alcohols, maleates, acrylates and copolymers thereof.
- the opaque layer may specifically include fillers such as silica gels, metal oxides, metal hydroxides; metal oxide hydrates, salts of inorganic acids. If the layer thickness is sufficiently small, the opaque ink-receiving layer appears milky or hazy in transmitted light.
- the data carrier according to the invention may also comprise further layers, such as protective layers or functional layers provided with other security elements.
- the polymeric cover layers are each connected to the substrate via a laminating adhesive layer.
- the motif region has in its interior at least one region without apertures of the substrate, which is formed in the form of a pattern, of characters or an encoding.
- the data carrier may in particular be a security element, a security paper or a value document.
- the apertures can be produced, for example, with a punch, but because of the higher spatial resolution, the generation by laser application, in particular by means of a CO 2 laser, is preferred.
- the polymeric cover layers are advantageously laminated onto the substrate at least in the motif region, wherein this is preferably carried out after the production of the partial or complete perforations.
- FIGS. 1 and 2 show a schematic representation of a polymer banknote 10, which has a motif area according to the invention in the form of a see-through area 12.
- the see-through area 12 of the polymer banknote 10 is in Fig. 2 in cross-section along the line II-II and in Fig. 3 shown in detail in a detail.
- the banknote 10 has a substrate 20 in the form of an opaque or even nontransparent, 50 ⁇ m thick PET film.
- a line grid is formed in the opaque or even non-transparent polymer substrate 20, which is formed from a multiplicity of parallel, continuous cut lines 22.
- the cut-out portions of the polymer substrate 20 are in cross section Fig. 2 unfolded while the cut-out lines 22 in the top view of Fig. 3 hatched are drawn.
- the line grid of the cutting lines 22 has in the embodiment shown a period length of 0.75 mm at a cutting width of the cutting lines of 0.25 mm.
- the area coverage of the line grid is thus 33%, so that the viewing area 12 can be seen when viewed both in supervision and in review.
- the cut lines 22 are arranged so that the line grid forms a motif in the form of a pattern, a character or a coding.
- the see-through region 12 with its outer contour 24 forms a coat of arms which contains in its interior an uncut region 26 in the form of the denomination "20" of the polymer banknote 10.
- the outlines of the coat of arms 24 and the denomination 26 shown dashed in the figure serve merely to illustrate the shape of the drawing and do not necessarily correspond to an actually existing contour on the banknote.
- the see-through area 12 as a motif shows a crest 24 with denomination 26, with a changed appearance in reflected light and transmitted light.
- the formed from the cutting lines 22 Line grid the subject area a tactile detectability, since the wells of the cutting lines 22 can be easily felt when touching the banknotes with your fingers.
- the cover layers 30 thereby protect the line grid from external influences, in particular from contamination, but due to their small layer thickness, maintain the tactility of the motif region 12.
- the polymeric cover layers on both sides of the openings also form a suitable continuous surface for the arrangement of further layers, in particular a paint acceptance layer , In this case, it is ensured on account of the usually existing elastic properties of the polymeric cover layers that the openings can be felt, in particular with the fingers, when the depth is about 10 ⁇ m or more and the width is about 100 ⁇ m or more.
- This tactile detectability of the motif area 12 thus constitutes, in addition to the visual testability, another authenticity feature which is easily verifiable even by a layman and which can not be imitated with a copying machine and thus offers high-quality protection against counterfeiting.
- a data carrier according to Fig. 2 can also be understood on the basis of the given for the respective layers or areas transmittances. This should be based on a Fig. 2 corresponding variant can be explained.
- transparent, polymeric cover layers 30, which are provided on both sides with full-area, opaque ink-receiving layers 34, are laminated onto an intransparent substrate 20.
- the non-transparent substrate 20 is also formed over the entire surface apart from cutting lines 22.
- the lines of intersection 22 represent continuous recesses in the nontransparent substrate 20.
- the underlying cutting lines 22 of the non-transparent film are not visible in reflected light.
- a viewer can because of the non-zero degrees of transmission of the opaque ink receiving layers 34, the openings in the opaque substrate 20, ie the cutting lines 22 recognize. This results in a hidden security feature.
- an article explained in the above description also has a changed visual and / or transmitted light visual impression for the viewer, if instead of the opaque substrate 20, only an opaque substrate, ie a substrate with a transmittance greater than zero, or even only a translucent substrate, ie a substrate with a transmittance between about 10% and 90% is provided. However, it must always be ensured that the transmittance of the substrate in the region of the apertures is greater than the transmittance of the substrate without apertures and greater than the transmittance of the ink-accepting layer.
- the cut lines 22 represent complete openings of the polymer substrate 20, which also produce a see-through area in the banknote in addition to the tactile detectable cut-line grid.
- the motif region 12 may also comprise only partial openings of the substrate, as in the exemplary embodiments of FIGS FIGS. 4 to 7 illustrated. In this case, in the cross sections shown for the sake of clarity, only the polymer substrate 20 provided with the motif area is shown. This situation corresponds to the state of the substrate after the laser application and before the lamination of the polymeric cover layers.
- the motif area is covered on both sides with a thin, polymeric cover layer and that here also color acquisition layers, protective layers or other functional layers can be provided, which are provided in each case partially or over the entire surface.
- an opaque ink acceptance layer with a third transmittance which is smaller than a second transmittance assigned to the region of the openings in the substrate, can be provided for all the embodiments according to the invention.
- the second transmittance in the region of the openings of the substrate according to the invention is greater than the first transmittance of the substrate outside the range of these openings.
- a line grid in the form of only partial openings 42 of the substrate 20 was produced by the action of laser radiation in a motif area 40.
- the partial openings form a multiplicity of dilution lines 42, in the region of which the light transmission of the substrate 20 is increased because of the smaller local layer thickness.
- the partial openings 42 typically have a depth between 10 ⁇ m and 40 ⁇ m.
- the preferred depth is between 20% and 80% of the layer thickness of the substrate.
- the tactility of the motif area is also influenced, for example, by the width of the partial openings 42.
- the motif area 40 produced in this way shows, when viewed, a watermark-like appearance in which the motif shown is hardly recognizable in incident light, while in transmitted light it clearly appears due to the higher light transmission of the thinned areas.
- Fig. 5 the visual appearance of the motif area 40 of an associated finished polymer banknote in transmitted light.
- the motif area is formed in this embodiment by straight, divergent dilution lines 42 with increasing line spacing.
- the motif area 40 with its outer outline, again represents a geometric figure, for example a coat of arms 44, which contains in its interior a non-thinned area 46 in the form of the denomination "20" of the polymer banknote.
- the motif region 40 can also be detected tactilely by the depressions formed in the substrate by the dilution lines 42 and the small layer thickness of the laminated cover layers.
- the tactility of the motif area 40 in addition to the watermark-like supervision / see-through effect, represents another authenticity feature of the polymermote which can easily be tested even by a layman.
- the laser energy more precisely the laser irradiation, ie the laser energy per unit area
- a multi-level watermark-like supervision / see-through effect can thereby be generated be in which the image formed when viewed in reflected light is practically undetectable and occurs in transmitted light because of the different levels of light transmission with different brightness values in appearance.
- Such multi-level supervision / see-through effects are particularly suitable for more complex subjects, such as portrait portraits, because of the halftone display that is made possible by this.
- Fig. 7 (a) was generated in the motif area 60 by varying the laser irradiation tactile detectable line grid, on the one hand complete perforations of the substrate in the form of parallel cutting lines 62, on the other hand only partial openings of the substrate in the form of parallel dilution lines 64 contains.
- the cutting lines 62 and the dilution lines 64 are generated by varying the laser parameters as continuous lines in the same operation and therefore close to each other perfectly aligned in the longitudinal direction.
- Fig. 7 (a) such as Fig. 4 and Fig. 6
- the partial openings in the substrate in a not further illustrated embodiment can also be introduced from both sides of the substrate, optionally matched to one another.
- Such a variant has an extremely high security against counterfeiting, but at the same time, due to the required introduction of the partial openings from both sides of the substrate, a greater technical effort is necessary than in the in Fig. 4 . 6 and 7 (a) shown embodiments in which the partial openings are introduced only from one side of the substrate.
- the dilution lines 64 form a motif area with an outer contour 70 in the form of a coat of arms.
- An inner dilapidated area 72 has the shape of the euro symbol " €".
- the laser irradiation upon application was increased so far that, instead of dilution lines, continuous cut lines 62 were produced in the substrate, which is illustrated in the figures by a narrower hatching.
- an uncut area 76 in the form of the denomination "20" of the bill was left standing.
- the motif area 60 produced in this way is viewed in incident light, as in FIG Fig. 7 (b)
- the regions containing only the non-continuous dilution lines 64 are virtually invisible and the observer only perceives the intersection region 74 with the intersection lines 62 and the uncut denomination "20" (reference numeral 76).
- the outline and the shape of the emblem 70 are practically invisible in reflected light, the outline 70 is in Fig. 7 (b) dotted only to indicate its location.
- the thinning lines 64 and the cut lines 62 are produced in the same operation with the same laser beam, they adjoin one another in the longitudinal direction, perfectly matched, as in FIG Fig. 7 (c) to recognize at the upper and lower edge of the cutting portion 74.
- the intersection region 74 therefore fits seamlessly into the surrounding coat of arms motif 70 when viewed through.
- Such a motif that completes itself in transmitted light offers a high degree of attention and recognition value, which is further enhanced by the tactile comprehensibility of the motif region 60.
- Fig. 8 shows a polymer substrate 20 with a see-through area 80 according to another embodiment of the invention.
- the see-through portion 80 includes a plurality of cut lines 82 created by laser exposure of the opaque or even opaque polymer substrate 20 and which, by their arrangement, form a motif.
- the see-through area 80 forms with its outer outline a coat of arms which contains in its interior an uncut area 84 in the form of the denomination "20" of the associated banknote 10.
- the see-through area 80 is not formed by straight, but by curved, equidistant cut lines 82.
- the laser power of the cutting laser was lowered below the cutting threshold of the polymer substrate 20, respectively, so that no cutting lines were formed there.
- the denomination 84 thus remains as uncut substrate area and can be clearly seen against the background of the rastered viewing area 80, especially in transmitted light. by virtue of of the recesses of the cut lines 82, the motif area 80 is tactilely detectable, as described above.
- Fig. 9 shows a further embodiment of the invention, in which the motif region 90 of a polymer substrate is formed by curved and divergent dilution lines 92. Within the region 94 of the denomination, the laser power of the cutting laser was lowered so far that no dilution lines were generated there.
- the motif area 90 thus shows how the embodiment of the Fig. 5 , a watermark-like appearance, in which the subject is hardly visible in incident light, but clearly visible in transmitted light.
- the motif area 90 formed by the thinning lines 92 can be detected tactually.
- the complete or partial openings provided only in the substrate can basically be used for machine detection.
- a suitable sensor it is readily possible to distinguish the complete or partial openings according to the invention in the substrate, which are covered on both sides by polymeric cover layers and / or ink receiving layers, from partial and / or complete openings of the substrate and the polymeric cover layers and optionally Trapping layers.
- a suitable ultrasound sensor By means of a suitable ultrasound sensor can namely be readily distinguished between the data carriers according to the invention, in which only the substrate has openings, and produced as counterfeiting data carriers in which the substrate and one or more layers, in particular the entire disk is perforated, that has complete openings ,
- the data carrier according to the invention with partial or complete openings only in the substrate have the additional advantage that the openings are not visible to the naked eye in supervision, a machine detection by means of a sensor, in particular an ultrasonic sensor or a suitable transmitted light sensor but is possible. Therefore, the data carriers according to the invention, in particular polymer banknotes, but also cards or identity documents made of polymeric material are mechanically detectable and provided with the incident light / transmitted light effects described above.
- a corresponding sensor in particular ultrasonic or transmission sensor is disclosed, with the aid of which the machine detection of a data carrier according to the invention is possible. At present, however, such a sensor is not claimed.
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Description
Die Erfindung betrifft einen Datenträger, insbesondere ein Wertdokument, wie eine Banknote, Ausweiskarte und dergleichen, mit einem Polymersubstrat, das einen Motivbereich mit einem im Auflicht und/oder Durchlicht veränderten visuellen Eindruck aufweist. Die Erfindung betrifft auch ein Verfahren zum Herstellen eines derartigen Datenträgers.The invention relates to a data carrier, in particular a document of value, such as a banknote, identity card and the like, having a polymer substrate which has a motif area with a visual impression which changes in reflected light and / or transmitted light. The invention also relates to a method for producing such a data carrier.
Datenträger, wie Sicherheits-, Wert- oder Ausweisdokumente, aber auch andere Wertgegenstände, werden zur Absicherung oft mit Sicherheitsmerkmalen ausgestattet, die eine Überprüfung der Echtheit des Datenträgers gestatten und die zugleich als Schutz vor unerlaubter Reproduktion dienen.Data carriers, such as security, value or identity documents, but also other valuables, are often provided with security features for security purposes, which allow a verification of the authenticity of the data carrier and at the same time serve as protection against unauthorized reproduction.
Seit einiger Zeit werden bei Banknoten neben Papiersubstraten auch Polymermaterialien als Substratmaterialen eingesetzt. Polymer-Banknoten besitzen gegenüber Papier-Banknoten einige Vorteile, wie etwa eine höhere Reißfestigkeit. Auf der anderen Seite können in Polymer-Banknoten weder Wasserzeichen noch andere bei Papier-Banknoten übliche und etablierte Sicherheitsmerkmale, wie Melierfasem, Planchetten oder Sicherheitsfäden, ohne Weiteres realisiert werden. Auch weisen Polymer-Banknoten gegenüber Papier- oder Hybridbanknoten den Nachteil einer schlechteren Verprägbarkeit und eine geringere Taktilität des Druckes auf, die für den Verbraucher oft als erstes Erkennungsmerkmal einer echten Banknote dient. Studien, wie sie etwa die Bank of Canada durchgeführt hat, haben gezeigt, dass der Taktilität bei der Bewertung der Echtheit von Banknoten eine große Bedeutung zukommt.For some time now banknotes have been used in addition to paper substrates and polymer materials as substrate materials. Polymer banknotes have some advantages over paper banknotes, such as higher tear strength. On the other hand, in polymer banknotes, neither watermarks nor other common and established security features of paper banknotes, such as mottling fibers, planchettes or security threads, can be easily realized. Also, polymer banknotes to paper or hybrid banknotes on the disadvantage of poorer Verprägbarkeit and a lower tactility of the print, which is often used for the consumer as the first distinguishing feature of a genuine banknote. Studies, such as those conducted by the Bank of Canada, have shown that tactility plays an important role in assessing the authenticity of banknotes.
Das Dokument
Davon ausgehend liegt der vorliegenden Erfindung die Aufgabe zugrunde, Datenträger der eingangs genannten Art hinsichtlich ihres visuellen Erscheinungsbilds und insbesondere ihrer Nachahmungssicherheit weiter zu verbessern.Based on this, the present invention has the object, data carriers of the type mentioned in terms of their visual appearance and in particular their counterfeiting security.
Diese Aufgabe wird durch den Datenträger und das Herstellungsverfahren mit den Merkmalen der unabhängigen Ansprüche gelöst. Weiterbildungen der Erfindung sind Gegenstand der abhängigen Ansprüche.This object is achieved by the data carrier and the production method having the features of the independent claims. Further developments of the invention are the subject of the dependent claims.
Gemäß der Erfindung enthält ein gattungsgemäßer Datenträger, insbesondere ein Wertdokument, wie eine Banknote, Ausweiskarte und dergleichen, ein Substrat aus einem polymeren Material, das einen Motivbereich mit einem im Auflicht und/ oder Durchlicht veränderten visuellen Eindruck aufweist. Der Motivbereich weist dabei taktil erfassbare, teilweise oder vollständige Durchbrechungen des Substrats auf und ist in Form eines Musters, von Zeichen oder einer Codierung ausgebildet. Das Substrat ist zumindest im Motivbereich beidseitig jeweils von einer polymeren Deckschicht abgedeckt.According to the invention, a generic data carrier, in particular a value document, such as a banknote, identification card and the like, contains a substrate made of a polymeric material which has a motif area with a visual impression changed in reflected light and / or transmitted light. The motif region has tactile detectable, partial or complete apertures of the substrate and is in the form of a pattern, of characters or a coding. The substrate is covered at least in the motif area on both sides by a polymeric cover layer.
Es sei an dieser Stelle angemerkt, dass bestimmte Merkmale der in dieser Anmeldung beschriebenen Erfindungsgegenstände in den beiden prioritätsbegründenden Anmeldungen
- So wird beispielsweise in der vorliegenden Anmeldung und in der prioritätsbegründenden Anmeldung
DE 10 2010 024 459.7 DE 10 2010 019 194.9 DE 10 2010 024 459.7 prioritätsbegründenden Anmeldung 10 2010 019194.9 DE 10 2010 019194.9 DE 10 2010 019194.9
- For example, in the present application and in the
priority application DE speak of a substrate made of a polymeric material and partial or complete openings of the substrate, while in the priority application10 2010 024 459.7 DE 10 2010 019 194.9 priority application DE at least in a motif area covered on both sides in each case by a polymeric cover layer, while in the10 2010 024 459.7 priority registration 10 2010 019194.9 priority application DE referred to as "substrate". Also referred to in the present application as "laminating adhesive layer" layer in the10 2010 019194.9 DE 10 2010 019194.9
Es versteht sich, dass der Fachmann die technische Lehre der vorliegenden Anmeldung und der
In einer bevorzugten Ausgestaltung weist der Motivbereich teilweise Durchbrechungen auf und diese teilweisen Durchbrechungen sind durch eine Vielzahl von Verdünnungslinien im Substrat gebildet. Im Bereich der teilweisen Durchbrechungen zeigt der Motivbereich dann ein wasserzeichenähnliches Erscheinungsbild, bei dem das dargestellte Motiv im Auflicht, also in reflektiertem Licht, kaum zu erkennen ist, während es im Durchlicht, also in transmittiertem Licht, wegen der höheren Lichtdurchlässigkeit der teilweise durchbrochenen Bereiche deutlich in Erscheinung tritt.In a preferred embodiment, the motif region partially has openings and these partial openings are formed by a multiplicity of dilution lines in the substrate. In the area of the partial apertures, the motif area then shows a watermark-like appearance in which the motif shown is hardly recognizable in incident light, ie in reflected light, while it is clearly visible in transmitted light, ie in transmitted light, because of the higher light transmission of the partially perforated areas appears in appearance.
Grundsätzlich können die teilweisen Durchbrechungen eine Tiefe Ti gemäß folgender Beziehung aufweisen: 0 < Ti < SD. D.h, die Tiefe Ti der teilweisen Durchbrechungen kann einen Wert erreichen, der nur geringfügig kleiner als die Schichtdicke SD des Substrates ist.In principle, the partial openings may have a depth Ti according to the following relationship: 0 <Ti <SD. That is, the depth Ti of the partial Openings can reach a value which is only slightly smaller than the layer thickness SD of the substrate.
Um die Taktilität des Motivbereichs sicherzustellen, weisen die teilweisen Durchbrechungen vorzugsweise eine Tiefe von ca.10 µm oder mehr auf. Es versteht sich, dass die Taktilität des Materials nicht nur von der Tiefe T der (teilweisen) Durchbrechungen abhängt, sondern z.B. auch von der Breite B der (teilweisen) Durchbrechungen. Es hat sich in der Praxis gezeigt, dass die Taktilität des Motivbereichs bei einer Tiefe von ca.10 µm oder mehr und einer Breite von ca. 100 µm oder mehr sichergestellt ist.In order to ensure the tactility of the motif area, the partial openings preferably have a depth of about 10 μm or more. It is understood that the tactility of the material not only depends on the depth T of the (partial) apertures, but e.g. also from the width B of the (partial) openings. It has been shown in practice that the tactility of the subject area is ensured at a depth of about 10 μm or more and a width of about 100 μm or more.
Alternativ oder zusätzlich weist der Motivbereich gemäß einer ebenfalls bevorzugten Ausgestaltung vollständige Durchbrechungen auf und diese vollständigen Durchbrechungen sind durch eine Vielzahl von Schnittlinien im Substrat gebildet. Im Bereich der vollständigen Durchbrechungen stellt der Motivbereich dann einen Durchsichtsbereich im Datenträger dar, der sowohl bei Betrachtung in Aufsicht als auch in Durchsicht zu erkennen ist.Alternatively or additionally, the motif region according to a likewise preferred embodiment has complete apertures and these complete apertures are formed by a plurality of cutting lines in the substrate. In the area of the complete openings, the motif area then represents a viewing area in the data carrier, which can be recognized both when viewed in a top view and in a transparent view.
In allen Gestaltungen sind die Schnittlinien bzw. Verdünnungslinien vorzugsweise mit einer Breite zwischen 0,05 mm und 1 mm ausgebildet. Der Mitte-zu-Mitte-Abstand liegt mit Vorteil zwischen 0,05 mm und 1 mm, insbesondere zwischen 0,3 mm und 0,7 mm, wobei der Mitte-zu-Mitte-Abstand konstant (äquidistante Schnittlinien bzw. Verdünnungslinien) oder variabel (divergierende Schnittlinien bzw. Verdünnungslinien) sein kann.In all designs, the cut lines or dilution lines are preferably formed with a width between 0.05 mm and 1 mm. The center-to-center distance is advantageously between 0.05 mm and 1 mm, in particular between 0.3 mm and 0.7 mm, the center-to-center distance being constant (equidistant cutting lines or dilution lines) or can be variable (divergent cut lines or dilution lines).
Das Substrat des Datenträgers ist vorzugsweise durch eine Kunststofffolie, insbesondere eine opake Kunststofffolie aus PET, PP, PE, PA, PC (Polycarbonat) oder PVC gebildet. Sofern das Substrat nicht opak im Sinne der weiter unten gegebenen Definition ist, kann es mit Vorteil einen Transmissionsgrad kleiner als 10 % aufweisen oder sogar intransparent ausgebildet sein. Die Schichtdicke der (opaken) Kunststofffolie liegt typischerweise zwischen 4 µm und 100 µm und insbesondere bei etwa 50 µm. Es versteht sich, dass die Schichtdicke des Substrats insbesondere in Abhängigkeit von der Art des verwendeten Folienmaterials und des Schichtaufbaus der Polymer-Banknote gewählt wird.The substrate of the data carrier is preferably formed by a plastic film, in particular an opaque plastic film of PET, PP, PE, PA, PC (polycarbonate) or PVC. Unless the substrate is opaque in the sense of the definition given below, it may advantageously have a transmittance less than 10% or even be formed intransparent. The layer thickness of the (opaque) plastic film is typically between 4 .mu.m and 100 .mu.m, and in particular about 50 .mu.m. It is understood that the layer thickness of the substrate is selected in particular depending on the type of film material used and the layer structure of the polymer banknote.
Die polymeren Deckschichten sind mit Vorteil transparent oder transluzent ausgebildet. Um die Taktilität des Motivbereichs möglichst weitgehend zu erhalten, sind die polymeren Deckschichten sehr dünn, vorzugsweise mit einer Dicke von 12 µm oder weniger, und insbesondere mit einer Dicke von etwa 6 µm oder weniger ausgebildet. Z.B. kann eine polymere Deckschicht eine Dicke von nur ca. 4,5 µm aufweisen, wodurch die Taktilität des Motivbereichs sehr gut erhalten wird.The polymeric cover layers are advantageously transparent or translucent. In order to maximize the tactility of the motif area, the polymer cover layers are very thin, preferably with a thickness of 12 .mu.m or less, and in particular with a thickness of about 6 .mu.m or less. For example, For example, a polymeric topcoat may have a thickness of only about 4.5 microns, thereby providing very good tactility of the motif area.
Eine polymere Deckschicht wird vorzugsweise durch eine Kunststofffolie, insbesondere aus PET, PP, PE, PA, PC oder PVC gebildet, wobei gegenwärtig eine Kunststofffolie aus PET besonders bevorzugt ist.A polymeric cover layer is preferably formed by a plastic film, in particular PET, PP, PE, PA, PC or PVC, with a PET plastic film currently being particularly preferred.
Auf zumindest einer der polymeren Deckschichten ist mit Vorteil eine bereichsweise oder vollflächig angeordnete Farbannahmeschicht vorgesehen, die der weiteren drucktechnischen Ausgestaltung des Datenträgers dient. Die Farbannahmeschicht, welche mit Vorteil opak ausgestaltet ist, wird in der prioritätsbegründenden Anmeldung
Im Sinne der vorliegenden Anmeldung bezeichnet der Transmissionsgrad die Durchlässigkeit für Licht, insbesondere für Licht im sichtbaren Wellenlängenbereich zwischen 400 nm und 800 nm, d.h. für Licht wie es üblicherweise vom Betrachter wahrgenommen wird. Je nach Anwendung kann sich der Transmissionsgrad jedoch auch nur auf eine einzige Wellenlänge oder auf andere Wellenlängenbereiche beziehen, beispielsweise auf den an den sichtbaren Spektralbereich sich anschließenden nahen UV- oder IR-Wellenlängenbereich. Eine intransparente Schicht weist idealerweise einen Transmissionsgrad von 0 % auf, wobei dieser Wert in der Praxis in der Regel nicht exakt erreicht wird. Ein transparente Schicht weist idealerweise einen Transmissionsgrad von 100 % auf, wobei dieser Wert in der Praxis in der Regel nicht exakt erreicht wird.For the purposes of the present application, the transmittance refers to the transmission of light, in particular to light in the visible wavelength range between 400 nm and 800 nm, i. for light as it is usually perceived by the viewer. However, depending on the application, the transmittance may also relate only to a single wavelength or to other wavelength ranges, for example to the near UV or IR wavelength range following the visible spectral range. An opaque layer ideally has a transmittance of 0%, although this value is generally not exactly reached in practice. A transparent layer ideally has a transmittance of 100%, although this value is generally not exactly reached in practice.
Im Rahmen der vorliegenden Anmeldung weist eine transluzente Schicht vorzugsweise einen solchen Transmissionsgrad auf, dass ein Betrachter eine transluzente Schicht eindeutig von einer intransparenten und einer transparenten Schicht unterscheiden kann. Entsprechend weist eine transluzente Schicht einen Transmissionsgrad auf, der sich ausreichend deutlich von den Transmissionsgraden einer intransparenten und einer transparenten Schicht unterscheidet. Im Rahmen der vorliegenden Anmeldung weist eine transluzente Schicht daher bevorzugt einen Transmissionsgrad von 10 % bis 90 %, und besonders bevorzugt von 20 % bis 80 % auf. Bezieht sich der Transmissionsgrad nicht nur auf eine einzelne Wellenlänge, sondern auf einen Wellenlängenbereich, beispielsweise den sichtbaren Spektralbereich, so beschreibt der Transmissionsgrad den über den jeweiligen Wellenlängenbereich gemittelten Transmissionsgrad der verschiedenen in dem Wellenlängenbereich liegenden Wellenlängen. Vorzugsweise nimmt der Transmissionsgrad in einem Wellenlängenbereich für jede Wellenlänge des Wellenlängenbereichs den gleichen Wert an. Der Transmissionsgrad einer Schicht beschreibt das Verhältnis von durchgelassenem Licht zum einfallenden Licht bei Durchtritt durch die Schicht, beispielsweise in Normalenrichtung der Schicht.In the context of the present application, a translucent layer preferably has such a transmittance that a viewer can clearly distinguish a translucent layer from an opaque and a transparent layer. Accordingly, a translucent layer has a transmittance that differs sufficiently clearly from the transmittances of an opaque and a transparent layer. In the context of the present application, therefore, a translucent layer preferably has a transmittance of from 10% to 90%, and particularly preferably from 20% to 80%. If the transmittance does not only refer to a single wavelength but to a wavelength range, for example the visible spectral range, this is how it describes the transmittance of the averaged over the respective wavelength range transmittance of the various lying in the wavelength range wavelengths. Preferably, the transmittance in a wavelength region assumes the same value for each wavelength of the wavelength region. The transmittance of a layer describes the ratio of transmitted light to incident light as it passes through the layer, for example in the normal direction of the layer.
Eine opake Schicht, insbesondere eine opake Farbannahmeschicht im Sinne der vorliegenden Anmeldung ist eine Schicht, die bei Betrachtung im Auflicht, in Betrachtungsrichtung hinter der Schicht liegende Strukturen, beispielsweise weitere Schichten, zumindest im Wesentlichen, im Idealfall vollständig verdeckt, so dass diese weiter hinten liegenden Strukturen von einem Betrachter nicht mehr wahrgenommen werden. Mit anderen Worten bezieht sich der Begriff "opak" in erster Linie auf eine Betrachtung im Auflicht, wobei sich diese optischen Eigenschaft wiederum auf die relevante Wellenlänge oder den relevanten Wellenlängenbereich bezieht. Der relevante Wellenlängenbereich ist typischerweise der sichtbare Spektralbereich zwischen 400 nm und 800 nm, kann sich jedoch alternativ oder zusätzlich auch auf die angrenzenden Wellenlängenbereiche im nahen UV- oder IR-Bereich beziehen.An opaque layer, in particular an opaque ink acceptance layer in the sense of the present application, is a layer that, when viewed in incident light, in the viewing direction behind the layer, for example, further layers, at least substantially, ideally completely covered, so that they are further behind Structures are no longer perceived by a viewer. In other words, the term "opaque" primarily refers to observation in incident light, this optical property again referring to the relevant wavelength or the relevant wavelength range. The relevant wavelength range is typically the visible spectral range between 400 nm and 800 nm, but may alternatively or additionally also refer to the adjacent wavelength ranges in the near UV or IR range.
Die vorliegende Erfindung beruht weiterhin auf der Erkenntnis, dass eine opake Schicht nicht notwendigerweise intransparent ist, sondern einen Transmissionsgrad größer als 0 % aufweisen kann. Eine opake Schicht, insbesondere eine opake Farbannahmeschicht auf zumindest einer der polymeren Deckschichten des erfindungsgemäßen Datenträgers, weist derartige Eigenschaften auf. Dazu werden das Material, die Schichtdicke und sonstige Eigenschaften der opaken Schicht, insbesondere der opaken Farbannahmeschicht geeignet gewählt. Demzufolge ist die opake Farbannahmeschicht vorzugsweise eine Schicht, die die physikalische Trocknung bzw. die Filmbildung von ölbasierenden Druckfarben und/oder von wässrigen und/oder organische Lösungsmittel enthaltenden und/oder kationisch bzw. radikalisch härtenden Druckfarben ermöglicht. Die opake Farbannahmeschicht kann auf wässriger Basis und/oder auf Basis von organischen Lösungsmitteln hergestellt werden. Die opake Farbannahmeschicht kann ferner als eine einzelne Schicht vorliegen oder in Form von mehreren Einzelschichten gebildet sein, die sich mit Bezug auf die gegenständliche Beschaffenheit unterscheiden können. Die gesamte Schichtdicke der opaken Farbannahmeschicht kann vorzugsweise in einem Bereich von 2 µm bis 15 µm liegen. Die opake Farbannahmeschicht enthält vorzugsweise selbstvernetzende Harze und/oder mindestens zwei miteinander zu vernetzende Komponenten. Die erste Komponente kann bevorzugt von Alkoxysilanen, Isocyanaten, Diimiden, Aziridinen und Glycidethern gewählt sein. Die zweite Komponente kann bevorzugt von Polyurethanen, Urethanacrylaten, Polyestern, Polyethern, Polyvinylalkoholen, Maleinaten, Acrylaten und Copolymeren hiervon gewählt sein. Weiter kann die opake Schicht im Besonderen Füllstoffe, wie etwa Kieselgele, Metalloxide, Metallhydroxide; metalloxidische Hydrate, Salze anorganischer Säuren enthalten. Bei ausreichend geringer Schichtdicke erscheint die opake Farbannahmeschicht im Durchlicht milchig oder trüb.The present invention is further based on the finding that an opaque layer is not necessarily intransparent, but may have a transmittance greater than 0%. An opaque layer, in particular an opaque ink receiving layer on at least one of the polymeric cover layers of the data carrier according to the invention, has such properties. These are the material, the layer thickness and others Properties of the opaque layer, especially the opaque ink receiving layer chosen suitably. Accordingly, the opaque ink receiving layer is preferably a layer which enables the physical drying or film formation of oil-based printing inks and / or printing inks containing aqueous and / or organic solvents and / or cationic or free-radically curing inks. The opaque ink receiving layer can be prepared on an aqueous basis and / or based on organic solvents. The opaque ink receiving layer may further be present as a single layer or formed in the form of a plurality of individual layers, which may differ with respect to the subject matter. The total layer thickness of the opaque ink-accepting layer may preferably be in a range of 2 μm to 15 μm. The opaque ink receiving layer preferably contains self-crosslinking resins and / or at least two components to be crosslinked. The first component may preferably be selected from alkoxysilanes, isocyanates, diimides, aziridines and glycidic ethers. The second component may preferably be selected from polyurethanes, urethane acrylates, polyesters, polyethers, polyvinyl alcohols, maleates, acrylates and copolymers thereof. Further, the opaque layer may specifically include fillers such as silica gels, metal oxides, metal hydroxides; metal oxide hydrates, salts of inorganic acids. If the layer thickness is sufficiently small, the opaque ink-receiving layer appears milky or hazy in transmitted light.
Selbstverständlich kann der erfindungsgemäße Datenträger auch weitere Schichten, wie etwa Schutzschichten oder mit anderen Sicherheitselementen versehene Funktionsschichten aufweisen. Zweckmäßig sind die polymeren Deckschichten jeweils über eine Kaschierkleberschicht mit dem Substrat verbunden.Of course, the data carrier according to the invention may also comprise further layers, such as protective layers or functional layers provided with other security elements. Suitably, the polymeric cover layers are each connected to the substrate via a laminating adhesive layer.
In einer vorteilhaften Ausgestaltung weist der Motivbereich in seinem Inneren zumindest einen Bereich ohne Durchbrechungen des Substrats auf, der in Form eines Musters, von Zeichen oder einer Codierung ausgebildet ist. Bei dem Datenträger kann es sich insbesondere um ein Sicherheitselement, ein Sicherheitspapier oder ein Wertdokument handeln.In an advantageous embodiment, the motif region has in its interior at least one region without apertures of the substrate, which is formed in the form of a pattern, of characters or an encoding. The data carrier may in particular be a security element, a security paper or a value document.
Die Erfindung umfasst auch ein Verfahren zum Herstellen eines Datenträgers der oben genannten Art. Bei dem erfindungsgemäßen Verfahren wird
- ein Substrat aus einem polymeren Material bereitgestellt,
- wird in dem Substrat ein Motivbereich gebildet, indem taktil erfassbare, teilweise oder vollständige Durchbrechungen in Form eines Musters, von Zeichen oder einer Codierung in das Substrat eingebracht werden, wodurch der Motivbereich mit dem im Auflicht und/oder Durchlicht veränderten visuellen Eindruck erzeugt wird, und
- wird das Substrat zumindest im Motivbereich beidseitig jeweils von einer polymeren Deckschicht abgedeckt.
- a substrate made of a polymeric material is provided,
- a motif area is formed in the substrate by tactile detectable, partial or complete apertures are introduced in the form of a pattern, characters or a coding in the substrate, whereby the motif area is generated with the changed in incident light and / or transmitted light visual impression, and
- At least in the motif area, the substrate is covered on both sides by a polymeric cover layer.
Die Durchbrechungen können beispielsweise mit einer Stanze erzeugt werden, wegen der höheren räumlichen Auflösung ist jedoch die Erzeugung durch Laserbeaufschlagung, insbesondere mittels eines CO2-Lasers, bevorzugt.The apertures can be produced, for example, with a punch, but because of the higher spatial resolution, the generation by laser application, in particular by means of a CO 2 laser, is preferred.
Die polymeren Deckschichten werden vorteilhaft zumindest im Motivbereich auf das Substrat aufkaschiert, wobei dies vorzugsweise nach der Erzeugung der teilweisen oder vollständigen Durchbrechungen vorgenommen wird.The polymeric cover layers are advantageously laminated onto the substrate at least in the motif region, wherein this is preferably carried out after the production of the partial or complete perforations.
Weitere Ausführungsbeispiele sowie Vorteile der Erfindung werden nachfolgend anhand der Figuren erläutert, bei deren Darstellung auf eine maßstabs- und proportionsgetreue Wiedergabe verzichtet wurde, um die Anschaulichkeit zu erhöhen.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.
Es zeigen:
- Fig. 1
- eine schematische Darstellung einer Polymer-Banknote mit einem erfindungsgemäßen Motivbereich,
- Fig. 2
- einen Querschnitt durch die Polymer-Banknote der
Fig. 1 entlang der Linie II-II, - Fig. 3
- eine Detailaufsicht auf den Durchsichtsbereich der Banknote der
Fig. 1 , - Fig. 4
- für eine Polymer-Banknote nach einem anderen Ausführungsbeispiel der Erfindung einen Querschnitt nur durch das Polymer-Substrat im Motivbereich,
- Fig. 5
- das visuelle Erscheinungsbild des Motivbereichs der fertigen Polymer-Banknote der
Fig. 4 , - Fig. 6
- für eine Polymer-Banknote nach einem weiteren Ausführungsbeispiel der Erfindung einen Querschnitt nur durch das Polymer-Substrat im Motivbereich,
- Fig. 7
- für eine Polymer-Banknote nach noch einem weiteren Ausführungsbeispiel der Erfindung, in (a) einen Querschnitt nur des Polymersubstrats, in (b) den visuellen Eindruck des Motivbereichs in Aufsicht und in (c) den visuellen Eindruck des Motivbereichs in Durchsicht, und
- Fig. 8 und 9
- das visuelle Erscheinungsbild des Motivbereichs fertiger Polymer-Banknoten nach weiteren Ausführungsbeispielen der Erfindung.
- Fig. 1
- a schematic representation of a polymer banknote with a motif area according to the invention,
- Fig. 2
- a cross section through the polymer banknote of
Fig. 1 along the line II-II, - Fig. 3
- a detailed supervision on the see - through range of the banknote the
Fig. 1 . - Fig. 4
- for a polymer banknote according to another exemplary embodiment of the invention, a cross section only through the polymer substrate in the motif area,
- Fig. 5
- the visual appearance of the motif area of the finished polymer banknote the
Fig. 4 . - Fig. 6
- for a polymer banknote according to a further exemplary embodiment of the invention, a cross section only through the polymer substrate in the motif area,
- Fig. 7
- for a polymer banknote according to yet another embodiment of the invention, in (a) a cross section only in (b) the visual impression of the motif area in plan view and (c) the visual impression of the motif area in phantom, and
- 8 and 9
- the visual appearance of the motif area of finished polymer banknotes according to further embodiments of the invention.
Die Erfindung wird nun am Beispiel von Polymer-Banknoten erläutert. Die
Mit Bezug auf die
Das Linienraster der Schnittlinien 22 weist im gezeigten Ausführungsbeispiel eine Periodenlänge von 0,75 mm bei einer Schnittbreite der Schnittlinien von 0,25 mm auf. Die Flächendeckung des Linienrasters beträgt damit 33%, so dass der Durchsichtsbereich 12 bei Betrachtung sowohl in Aufsicht als auch in Durchsicht zu erkennen ist.The line grid of the cutting lines 22 has in the embodiment shown a period length of 0.75 mm at a cutting width of the cutting lines of 0.25 mm. The area coverage of the line grid is thus 33%, so that the
Wie am besten in
Zurückkommend auf die Darstellung der
Visuell zeigt der Durchsichtsbereich 12 als Motiv ein Wappen 24 mit Denomination 26, und zwar mit einem im Auflicht und Durchlicht veränderten Erscheinungsbild. Zusätzlich verleiht das aus den Schnittlinien 22 gebildete Linienraster dem Motivbereich eine taktile Erfassbarkeit, da die Vertiefungen der Schnittlinien 22 beim Berühren der Banknoten mit den Fingern leicht erfühlt werden können. Die Deckschichten 30 schützen dabei das Linienraster vor äußeren Einflüssen, insbesondere vor Verschmutzung, erhalten jedoch aufgrund ihrer geringen Schichtdicke die Taktilität des Motivbereichs 12. Auch bilden die polymeren Abdeckschichten auf beiden Seiten der Durchbrechungen eine geeignete durchgehende Oberfläche für die Anordnung weiterer Schichten, insbesondere einer Farbannahmeschicht. Dabei wird aufgrund der in der Regel vorhandenen elastischen Eigenschaften der polymeren Abdeckschichten sichergestellt, dass die Durchbrechungen insbesondere dann mit den Fingern erfühlt werden können, wenn die Tiefe ca. 10 µm oder mehr und die Breite ca.100 µm oder mehr beträgt.Visually, the see-through
Diese taktile Erfassbarkeit des Motivbereichs 12 stellt damit neben der visuellen Prüfbarkeit ein weiteres, auch für einen Laien leicht verifizierbares Echtheitsmerkmal dar, das mit einem Kopiergerät nicht nachzuahmen ist und so einen hochwertigen Schutz gegen Fälschungen bietet.This tactile detectability of the
Die visuelle Überprüfbarkeit eines Datenträgers gemäß
Bei dem Ausführungsbeispiel der
Bei dem Ausführungsbeispiel der
Der so erzeugte Motivbereich 40 zeigt bei Betrachtung ein wasserzeichenähnliches Erscheinungsbild, bei dem das dargestellte Motiv im Auflicht kaum zu erkennen ist, während es im Durchlicht wegen der höheren Lichtdurchlässigkeit der verdünnten Bereiche deutlich in Erscheinung tritt. Zur Illustration zeigt
Auch der Motivbereich 40 ist durch die von den Verdünnungslinien 42 gebildeten Vertiefungen im Substrat und die geringe Schichtdicke der aufkaschierten Deckschichten taktil erfassbar. Die Taktilität des Motivbereichs 40 stellt neben dem wasserzeichenähnlichen Aufsicht/ Durchsicht-Effekt ein weiteres, auch für einen Laien leicht prüfbares Echtheitsmerkmal der Polymemote dar.The
Wird bei der Laserbeaufschlagung die Laserenergie, genauer gesagt die Laserbestrahlung, also die Laserenergie pro Flächeneinheit, geeignet variiert, so können auch Reliefstrukturen mit unterschiedlich tiefen teilweisen Durchbrechungen 52 erzeugt werden, wie im Ausführungsbeispiel der
Die mit Bezug auf das Ausführungsbeispiel der
Teilweise und vollständige Durchbrechungen des Polymersubstrats können auch kombiniert werden, wie in
Mit Bezug zunächst auf
Mit Bezug auf
Wie am besten in der Durchsichtsansicht der
Wird der so erzeugte Motivbereich 60 im Auflicht betrachtet, wie in
Wird der Motivbereich 60 dagegen im Durchlicht betrachtet, wie in
Da die Verdünnungslinien 64 und die Schnittlinien 62 im selben Arbeitsgang mit demselben Laserstrahl erzeugt werden, schließen sie in Längsrichtung perfekt gepassert aneinander an, wie in
Ein derartiges, sich im Durchlicht vervollständigendes Motiv bietet einen hohen Aufmerksamkeits- und Wiedererkennungswert, der durch die taktile Erfassbarkeit des Motivbereichs 60 noch gesteigert wird.Such a motif that completes itself in transmitted light offers a high degree of attention and recognition value, which is further enhanced by the tactile comprehensibility of the
Im Unterschied zum Ausführungsbeispiel der
Es versteht sich, dass die gezeigten Ausgestaltungen beliebig miteinander kombiniert werden können. Beispielsweise können auch gekrümmte äquidistante oder gekrümmte divergierende Verdünnungslinien mit unterschiedlicher Tiefe erzeugt werden. Gerade und/oder gekrümmte Verdünnungslinien und Schnittlinien können auch miteinander kombiniert werden, wie grundsätzlich in
Zu erwähnen ist noch, dass ein weiterer Vorteil der in dieser Anmeldung beschriebenen Erfindung darin besteht, dass die nur in dem Substrat vorgesehenen vollständigen oder teilweisen Durchbrechungen grundsätzlich für eine maschinelle Detektion eingesetzt werden können. Mittels eines geeigneten Sensors ist es nämlich ohne Weiteres möglich, die erfindungsgemäßen vollständigen oder teilweisen Durchbrechungen im Substrat, die durch polymere Deckschichten und/oder Farbannahmeschichten bevorzugt beidseitig abgedeckt sind, zu unterscheiden von teilweisen und/oder vollständigen Durchbrechungen des Substrats und der polymeren Deckschichten und gegebenenfalls Farbannahmeschichten. Mittels eines geeigneten UltraschallSensors kann nämlich ohne Weiteres unterschieden werden zwischen den erfindungsgemäßen Datenträgern, bei denen nur das Substrat Durchbrechungen aufweist, und als Fälschungsversuch erzeugten Datenträgern, bei denen das Substrat und eine oder mehrere Schichten, insbesondere der gesamte Datenträger perforiert ist, also vollständige Durchbrechungen aufweist. Die erfindungsgemäßen Datenträger mit teilweisen oder vollständigen Durchbrechungen nur im Substrat haben darüber hinaus den Vorteil, dass die Durchbrechungen mit dem bloßem Auge in Aufsicht nicht zu sehen sind, eine maschinelle Detektion mittels eines Sensors, insbesondere eines Ultraschall-Sensors oder eines geeigneten Durchlicht-Sensors aber möglich ist. Daher sind die erfindungsgemäßen Datenträger, insbesondere Polymer-banknoten, aber auch Karten oder Ausweisdokumente aus polymerem Material maschinell detektierbar und mit den weiter oben beschriebenen Auflicht-/ Durchlicht-Effekten versehen.It should also be mentioned that a further advantage of the invention described in this application is that the complete or partial openings provided only in the substrate can basically be used for machine detection. By means of a suitable sensor, it is readily possible to distinguish the complete or partial openings according to the invention in the substrate, which are covered on both sides by polymeric cover layers and / or ink receiving layers, from partial and / or complete openings of the substrate and the polymeric cover layers and optionally Trapping layers. By means of a suitable ultrasound sensor can namely be readily distinguished between the data carriers according to the invention, in which only the substrate has openings, and produced as counterfeiting data carriers in which the substrate and one or more layers, in particular the entire disk is perforated, that has complete openings , The data carrier according to the invention with partial or complete openings only in the substrate have the additional advantage that the openings are not visible to the naked eye in supervision, a machine detection by means of a sensor, in particular an ultrasonic sensor or a suitable transmitted light sensor but is possible. Therefore, the data carriers according to the invention, in particular polymer banknotes, but also cards or identity documents made of polymeric material are mechanically detectable and provided with the incident light / transmitted light effects described above.
Demzufolge wird in der vorliegenden Anmeldung auch ein entsprechender Sensor, insbesondere Ultraschall- oder Transmissions-Sensor offenbart, mit dessen Hilfe die maschinelle Detektion eines erfindungsgemäßen Datenträgers möglich ist. Gegenwärtig wird ein solcher Sensor allerdings nicht beansprucht.Accordingly, in the present application, a corresponding sensor, in particular ultrasonic or transmission sensor is disclosed, with the aid of which the machine detection of a data carrier according to the invention is possible. At present, however, such a sensor is not claimed.
- 1010
- Polymer-BanknotePolymer banknote
- 1212
- DurchsichtsbereichThrough area
- 2020
- Substratsubstratum
- 2222
- Schnittliniencut lines
- 2424
- Umrissoutline
- 2626
- ungeschnittener Bereichuncut area
- 3030
- Deckschichtenfacings
- 3232
- KaschierkleberschichtenKaschierkleberschichten
- 3434
- FarbannahmeschichtenTrapping layers
- 4040
- MotivbereichBasic Zone
- 4242
- Durchbrechungen, VerdünnungslinienBreakthroughs, dilution lines
- 4444
- Umrissoutline
- 4646
- nicht verdünnter Bereichnot diluted area
- 5050
- MotivbereichBasic Zone
- 5252
- Durchbrechungenperforations
- 6060
- MotivbereichBasic Zone
- 6262
- Schnittliniencut lines
- 6464
- Verdünnungslinienthinning lines
- 7070
- Umrissoutline
- 7272
- nicht mit Verdünnungslinien versehener Bereichnon-thinned area
- 7474
- Schnittbereichcutting area
- 7676
- nicht geschnittener Bereichuncut area
- 8080
- DurchsichtsbereichThrough area
- 8282
- Schnittliniencut lines
- 8484
- nicht geschnittener Bereichuncut area
- 9090
- MotivbereichBasic Zone
- 9292
- Verdünnungslinienthinning lines
- 9494
- nicht verdünnter Bereichnot diluted area
Claims (14)
- A data carrier, especially a value document, such as a banknote, identification card and the like, having a substrate composed of a polymeric material that comprises a motif region having a visual impression that is altered in reflected light and/ or transmitted light, the motif region comprising tactilely perceptible, partial or complete breakthroughs in the substrate, the motif region being developed in the form of a pattern, characters or a code, and the substrate being covered on both sides at least in the motif region by, in each case, a polymeric cover layer.
- The data carrier according to claim 1, characterized in that the motif region comprises partial breakthroughs, and said partial breakthroughs are formed by a plurality of thinning lines in the substrate, resulting in the motif region displaying a watermark-like appearance in the region of the partial breakthroughs.
- The data carrier according to claim 1 or 2, characterized in that the motif region comprises complete breakthroughs, and said complete breakthroughs are formed by a plurality of cutting lines in the substrate, such that the motif region forms a see-through region in the data carrier in the region of the complete breakthroughs.
- The data carrier according to at least one of claims 1 to 3, characterized in that the substrate is formed by a plastic foil, preferably opaque plastic foil, especially an opaque foil composed of PET, PP, PE, PA, PC or PVC.
- The data carrier according to at least one of claims 1 to 4, characterized in that the polymeric cover layers are transparent or translucent.
- The data carrier according to at least one of claims 1 to 5, characterized in that the polymeric cover layers have a thickness of 12 µm or less, especially of about 6 µm or less.
- The data carrier according to at least one of claims 1 to 6, characterized in that on at least one of the polymeric cover layers is provided, arranged in some regions or contiguously, an ink-receiving layer, especially an opaque ink-receiving layer.
- The data carrier according to at least one of claims 1 to 7, characterized in that the polymeric cover layers are each joined with the substrate via a laminating adhesive layer.
- The data carrier according to at least one of claims 1 to 8, characterized in that the motif region comprises, in its interior, at least one region that is without breakthroughs in the substrate and that is developed in the form of a pattern, characters or a code.
- The data carrier according to at least one of claims 1 to 9, characterized in that the data carrier is a security element, a security paper or a value document.
- A method for manufacturing a data carrier according to one of claims 1 to 10, in which- a substrate composed of a polymeric material is provided,- a motif region is formed in the substrate in that tactilely perceptible, partial or complete breakthroughs in the form of a pattern, characters or a code are introduced into the substrate, producing the motif region having the visual impression that is altered in reflected light and/ or transmitted light, and- the substrate is covered on both sides at least in the motif region by a polymeric cover layer.
- The method according to claim 11, characterized in that the partial or complete breakthroughs are produced by laser impingement, preferably by means of a CO2 laser.
- The method according to claim 11 or 12, characterized in that the polymeric cover layers are laminated onto the substrate at least in the motif region.
- The method according to claim 13, characterized in that the polymeric cover layers are laminated on after the partial or complete breakthroughs are produced.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102010019194A DE102010019194A1 (en) | 2010-05-04 | 2010-05-04 | Value document with recess |
DE102010024459A DE102010024459A1 (en) | 2010-06-22 | 2010-06-22 | Data carrier, particularly valuable document, such as banknote or identity card, has substrate composed of polymeric material, which has motif region having visual impression |
PCT/EP2011/002197 WO2011138007A1 (en) | 2010-05-04 | 2011-05-03 | Data carrier comprising polymer substrate with motif region |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2566702A1 EP2566702A1 (en) | 2013-03-13 |
EP2566702B1 true EP2566702B1 (en) | 2014-11-26 |
Family
ID=44903631
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP11718298.0A Not-in-force EP2566702B1 (en) | 2010-05-04 | 2011-05-03 | Data carrier having polymer substrate and patterned area |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP2566702B1 (en) |
WO (1) | WO2011138007A1 (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2830886B1 (en) * | 2012-03-29 | 2016-03-23 | Orell Füssli Sicherheitsdruck AG | Multilayer security document with a cavity |
EP3095615A1 (en) * | 2015-05-20 | 2016-11-23 | Polska Wytwornia Papierow Wartosciowych S.A. | A security document and a method for manufacturing of a security document |
DE102016015546A1 (en) * | 2016-12-27 | 2018-06-28 | Giesecke+Devrient Currency Technology Gmbh | Multilayer value document substrate |
DE102017118579A1 (en) * | 2017-08-15 | 2019-02-21 | Leonhard Kurz Stiftung & Co. Kg | Document, method for producing a document and an apparatus for carrying out a method |
US10479128B2 (en) * | 2017-10-27 | 2019-11-19 | Assa Abloy Ab | Security feature |
DE102018131818A1 (en) * | 2018-12-11 | 2020-06-18 | Bundesdruckerei Gmbh | Process for producing a laminate and laminate, as well as security or value document with an internal security feature |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10044465A1 (en) * | 2000-09-08 | 2002-03-21 | Giesecke & Devrient Gmbh | Data carrier with an optically variable element |
DE10148122A1 (en) * | 2001-09-28 | 2003-04-24 | Giesecke & Devrient Gmbh | security paper |
DE10247591A1 (en) * | 2002-10-11 | 2004-04-22 | Giesecke & Devrient Gmbh | Security document, valuable document or bank note on security paper, has security marking sensed by touch, in form of laser-generated relief structure |
DE102006051524A1 (en) * | 2006-10-27 | 2008-04-30 | Giesecke & Devrient Gmbh | Safety unit for safety document e.g. bank note, has visually inspectable safety feature placing automatically reversible color imprint relative to information pattern in recess, such that pattern is disguised without external stimulus |
-
2011
- 2011-05-03 WO PCT/EP2011/002197 patent/WO2011138007A1/en active Application Filing
- 2011-05-03 EP EP11718298.0A patent/EP2566702B1/en not_active Not-in-force
Also Published As
Publication number | Publication date |
---|---|
WO2011138007A1 (en) | 2011-11-10 |
EP2566702A1 (en) | 2013-03-13 |
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