EP3738785A1 - Security element with machine readable features - Google Patents
Security element with machine readable features Download PDFInfo
- Publication number
- EP3738785A1 EP3738785A1 EP19174396.2A EP19174396A EP3738785A1 EP 3738785 A1 EP3738785 A1 EP 3738785A1 EP 19174396 A EP19174396 A EP 19174396A EP 3738785 A1 EP3738785 A1 EP 3738785A1
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- EP
- European Patent Office
- Prior art keywords
- magnetic
- security element
- layer
- areas
- different
- 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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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
- B42D25/36—Identification or security features, e.g. for preventing forgery comprising special materials
- B42D25/369—Magnetised or magnetisable materials
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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
- B42D25/355—Security threads
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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
- B42D25/36—Identification or security features, e.g. for preventing forgery comprising special materials
- B42D25/364—Liquid crystals
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07D—HANDLING OF COINS OR VALUABLE PAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING, DISPENSING, CHANGING OR DEPOSITING
- G07D7/00—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency
- G07D7/04—Testing magnetic properties of the materials thereof, e.g. by detection of magnetic imprint
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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
- B42D25/20—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
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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
- B42D25/328—Diffraction gratings; Holograms
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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 security element for securing data carriers, documents of value and the like, which has machine-readable security features, in particular magnetic features.
- a security document with a security element in the form of a thread or tape made of transparent plastic material which has a metallic layer with recesses in the form of characters, patterns or the like, a further magnetic layer being arranged above or below this metal layer in such a way that at least the legible recesses remain free.
- EP 1 871 616 B1 a security element with spatially resolved magnetic coding is known.
- the magnetic codes are applied in two partial layers on different sides of the carrier substrate simultaneously with transparent cutouts in the form of patterns, characters, letters, geometric figures, lines, guilloches and the like, the respective magnetic layers partially overlapping and the magnetic codes being spatially resolved can be and a coding normal to the carrier substrate plane is added to the two codes in the carrier substrate level.
- WO 2006/042667 A1 Security elements which have at least two magnetic materials, the magnetic materials having different coercive field strengths. The materials are applied to and / or incorporated into the security element in such a way that their remanence is the same.
- a security element in particular for bank notes, security cards and the like, which comprises a first substrate which, viewed in transmitted light, is at least partially opaque, magnetic areas being applied to the substrate.
- the magnetic areas comprise at least two different magnetic areas which have different coercivity and whose residual magnetism can be the same or different.
- the magnetic areas are arranged in such a way that they generate at least three different codes from one another.
- the object of the invention was to provide a security element with machine-readable, in particular magnetic security features, which has an increased level of protection against forgery, is easy to produce and enables clear identification.
- the subject matter of the invention is therefore a security element with machine-readable security features in the form of magnetic security features, which has at least two magnetic materials which have different coercive field strengths, the magnetic materials of different coercive field strengths being present as a mixture in at least one printing ink which is applied to a carrier film, wherein the at least one printing ink is provided in at least two areas on the security element in the same and / or different thickness and a defined mixing ratio of the at least two different ones magnetic materials of different coercive force in which at least one printing ink is present.
- each magnetic area being composed of exactly one printing ink and the magnetic areas either being directly adjacent to one another or being able to be spaced from one another.
- the magnetic coding takes place according to the invention by mixing the at least two magnetic materials of different coercive field strengths in the printing ink that forms the magnetic areas and applying them to the security element with the same or different thicknesses. It is initially completely sufficient if only a single printing ink with a defined mixing ratio is used. This has the advantage of simple and inexpensive production with a high level of security, since when a single printing ink is used, no production fluctuations can have an influence compared to printing several printing inks over one another. In addition, the same printing ink can be used to feed several printing cylinders. The different signal strengths are generated exclusively by the different thicknesses with which the printing ink is applied.
- the two magnetic materials are preferably a material with a high and a material with a low coercive field strength, with a magnetic material having a high coercive field strength in this context materials with> 1500 Oe and a material lower Understood coercive field strength materials ⁇ 500 Oe.
- the magnetic materials are preferably chosen so that they do not influence one another when magnetized. Since a 3 times stronger magnetic field is usually used for each magnetic material during magnetization, the difference in the coercive field strength of the magnetic materials must be selected accordingly.
- printing inks can also be used to improve security, with different printing inks each having different mixing ratios of the at least two magnetic materials.
- the magnetic areas that are formed by the at least one printing ink are applied at a distance from one another, but it can also be advantageous to apply two or more, identical or different printing inks of different thicknesses directly adjacent to one another in the lateral direction, so that one Magnet area group is created.
- a plurality of groups of magnetic areas can be arranged on the carrier substrate at a distance from one another, preferably equally spaced from one another.
- the printing inks of a magnetic area group have different thicknesses, the thicknesses preferably increasing or decreasing from one side of the magnetic area group to the opposite side.
- the printing ink which contains a mixture of the at least two magnetic materials of different coercive field strength, is applied to a carrier substrate at least in certain areas.
- the carrier substrates used are, for example, transparent carrier films, preferably flexible plastic films, for example made of polyimide (PI), polypropylene (PP), monoaxially oriented polypropylene (MOPP), biaxially oriented polypropylene (BOPP), polyethylene (PE), polyphenylene sulfide (PPS), polyetheretherketone (PEEK) ) Polyetherketone (PEK), polyethyleneimide (PEI), polysulfone (PSU), polyaryletherketone (PAEK), polyethylene naphthalate (PEN), liquid crystalline polymers (LCP), polyester, polybutylene terephthalate (PBT), polyethylene terephthalate (PET), polyamide (PA), polycarbonate (PC), cycloolefin copolymers (COC), polyoxymethylene (POM), acrylonitrile butadiene styrene (ABS), polyvinyl chloride (PVC) ethylene tetrafluoroethylene (ETFE), polyte
- the carrier foils preferably have a thickness of 5-700 ⁇ m, more preferably 5-200 ⁇ m, particularly preferably 5-50 ⁇ m.
- metal foils for example Al, Cu, Sn, Ni, Fe or stainless steel foils with a thickness of 5-200 ⁇ m, preferably 10 to 80 ⁇ m, particularly preferably 20-50 ⁇ m, can also serve as the carrier substrate.
- the foils can also be surface-treated, coated or laminated, for example with plastics or painted.
- carrier substrates also cellulose-free or cellulose-containing paper
- heat-activatable paper or composites with paper for example, composites with plastics with a grammage 20-500 g / m 2, preferably 40-200 g / m 2 may be used.
- the security features according to the invention can be applied to the carrier substrate in order to form a security element.
- This security element can then be assembled and at least partially embedded or applied to a data carrier or a value document as a strip, thread or patch.
- the security element is also possible to design the security element as a transfer element, with the carrier substrate being able to be pulled off after application to the data carrier or the value document.
- the security features can also be generated directly on the data carrier or the value document by printing the color from at least two magnetic materials with different coercive field strengths at least in areas at a predetermined location on the data carrier or value document.
- a printing ink which contains at least two magnetic materials of different coercive field strength.
- the mixing ratio of the magnetic materials of different coercive field strengths is set in a defined manner.
- the mixing ratio between a magnetic material with high coercive field strength and a magnetic material with low coercive field strength can be between 20: 1 to 1:20, preferably 10: 1 to 1:10, particularly preferably 5: 1 to 1: 5.
- the mixing ratio and thus the printing ink can be the same for all magnetic areas of the security element.
- the ratio of the different magnetic materials remains exactly constant during printing, regardless of the thickness of the printing inks applied. If printing inks of different thicknesses are applied, magnetic areas of different remanence arise with the same ratio of magnetic materials.
- magnetic areas in addition to the magnetic areas formed from a printing ink with a mixture of two or more magnetic materials with different coercive field strengths, magnetic areas can be provided on the security element that consist only of magnetic material with low or only magnetic material with high coercive field strength. In this case, either areas of magnetic material of low coercive field strength or areas of magnetic material of high coercive field strength are provided on the security element next to the magnetic areas formed from a printing ink with a mixture of two or more magnetic materials with different coercive field strength.
- the security element can have further layers with security features.
- an opaque layer in the form of a reflective layer or a printed layer for example a colored, black or white printed layer, can be provided on the carrier substrate under and / or above the magnetic layer areas, which can be applied over the entire surface or partially.
- a reflective layer is understood to mean, for example, a metallic layer made of Al, Cu, Ag, Au, Pd, Pt, Sn, In or their alloys and the like, which are applied by PVD or CVD processes, by sputtering, electron beam evaporation or the like .
- a reflective layer is also understood as meaning, for example, a layer that appears metallic, such as a lacquer or printing ink layer that contains metallic pigments or flakes, or pigments or flakes made from metal compounds, such as metal oxides. These layers are preferably applied by known printing processes, by knife-coating or brushing.
- the reflective layer can also be an HRI (High Refractive Index) layer, that is to say, for example, a printing layer in the form of a lacquer layer or a color with a high refractive index.
- HRI High Refractive Index
- a partially applied reflective layer or a printed layer can preferably have gaps in the form of letters, numbers, patterns, characters, symbols, lines and the like.
- the cutouts in the reflective layer are preferably arranged in such a way that they lie in the areas free of the magnetic layer.
- the magnetic layer areas are visually covered so that they cannot be seen even when viewed in transmitted light; on the other hand, the recesses in the metallic or metallic-appearing layer or the printed layer that can be seen in transmitted light create an additional security feature.
- Such a reflective layer can alternatively be provided on the side of the carrier substrate opposite the magnetic areas or on both sides of the carrier substrate.
- the reflective layer is provided on the same side of the carrier substrate below and / or above the magnetic areas, it may be useful to provide a protective layer between this layer and the magnetic areas in order to mutually influence the magnetic layer and the metallic layer prevent.
- the protective layer prevents, for example, signs of corrosion, in particular if the security element is exposed to moisture, in particular if the layer is metallic or contains metallic pigments or flakes.
- This protective layer can be designed as a thin film, but also as a protective lacquer layer.
- optically variable security features can also be present on the carrier substrate or in the layer structure, for example diffractive structures, such as surface reliefs, holograms, diffraction gratings and the like, or also layers which have a viewing angle-dependent color change effect.
- diffractive structures such as surface reliefs, holograms, diffraction gratings and the like
- layers which have a viewing angle-dependent color change effect are formed, for example, by thin-film elements that have a reflective layer, a dielectric spacer layer and an absorber layer, or by cholesteric liquid crystal layers combined with a dark, preferably black, printed layer or metallization.
- the security element can optionally have further colored, black, gray or white printed layers.
- All of these security features can be applied over the entire surface or partially on one or both sides of the carrier substrate.
- the Security features are applied in register and / or register, for example to the magnetic areas.
- in register or register is understood to mean a defined position of the features with respect to one another.
- the further security features can also be provided on a second carrier substrate and connected to the layer structure on which the magnetic areas lie by lamination or lamination.
- the security element can expediently be provided with a protective lacquer layer on one and / or both sides in order to protect the security features present on the security element against mechanical, physical and / or chemical influences.
- the protective lacquer layer can, for example, be based on nitrocellulose, acrylates and their copolymers, polyamides and their copolymers, polyvinyl chlorides and their copolymers or consist of a crosslinking lacquer.
- the security element can be provided with an adhesive layer on one or both sides in order to enable it to be fixed on or in a data carrier or value documents.
- This adhesive layer can be designed either in the form of a heat-seal, cold-seal or self-adhesive coating.
- the protective lacquer layer and / or the adhesive layer can also be pigmented, with all known pigments or dyes, for example TiO 2 , ZnS, kaolin, ATO, FTO, aluminum, chromium and silicon oxides or, for example, organic pigments such as phthalocyanine blue, i-indolide yellow, dioxazine violet and the like can be used.
- organic pigments such as phthalocyanine blue, i-indolide yellow, dioxazine violet and the like
- luminescent dyes or pigments which fluoresce or phosphoresce in the visible, UV or IR range, effect pigments such as liquid crystals, pearlescent luster, bronzes and / or multilayer color change pigments and heat-sensitive colors or pigments can be added. These can be used in all possible combinations.
- luminescent pigments can also be used alone or in combination with other dyes and / or pigments.
- the security element can also be designed as a transfer element, with the carrier substrate being able to be peeled off after the security element has been applied to a data carrier or a value document.
- a release layer can be provided on the carrier substrate and under the layer structure present on the carrier substrate.
- the illustrated embodiment shows a security element 18 comprising a carrier substrate 1 made of a plastic film, for example made of PET, to which an opaque layer in the form of a reflective layer 5 with cutouts 7 is applied.
- the cutouts 7 can be in the form of letters, numbers, characters, patterns, symbols or lines.
- Magnetic areas 2 spaced apart from one another are applied to the reflective layer 5.
- the magnetic areas 2 are at the same distance from one another and in this way do not form any coding.
- the coding is created by the composition of the magnetic areas 2 and their sequence.
- areas 19 with material of low coercivity 4 and magnetic areas 2 made of a printing ink with fixed proportions 3 of low-coercivity printing ink and fixed proportions 4 of high-coercivity printing ink are applied.
- the ratio in this exemplary embodiment is 1: 1, but other mixing ratios within the range according to the invention from 1:20 to 20: 1 are also possible.
- a hidden magnetic coding is formed by the magnetic areas 2 made of the printing ink with fixed proportions of both low-coercivity and high-coercivity material.
- the recesses 7 in the reflective layer 5 can also be designed in register with the areas free of the magnetic layer.
- a black, white or colored printing layer 6 can be provided instead of the reflective layer 5, a black, white or colored printing layer 6 can be provided.
- the reflective layer 5 or the printing layer 6 with cutouts 7 can also be provided on the side of the carrier substrate opposite the magnetic areas 2.
- Figure 1a is a for Figure 1
- An analogous embodiment is shown in which, instead of the areas 19 with low-coercivity material, areas 19 with high-coercivity material are provided.
- FIG. 2 an embodiment is shown in which on a carrier substrate 1, which consists of a transparent, semitransparent or opaque Plastic film can exist, a reflective layer 5 with recesses 7 is applied.
- Magnetic areas 2 spaced apart from one another are applied to the reflective layer 5 and each consist of a printing ink with defined proportions of low-coercivity material 3 and high-coercivity material 4.
- the ratio of low-coercivity material 3 to high-coercivity material 4 is 4: 1 in this exemplary embodiment.
- the magnetic areas 2 are at the same distance from one another, the coding results from the specified proportions of both low-coercivity and high-coercivity material of the printing ink.
- the magnetic areas 2 can be applied with different thicknesses, which also results in different remanences.
- a black, white or colored printing layer 6 can be provided instead of the reflective layer 5, a black, white or colored printing layer 6 can be provided.
- the reflective layer 5 or the printing layer 6 with cutouts 7 can also be provided on the side of the carrier substrate opposite the magnetic areas 2.
- FIG 3 an embodiment is shown in which magnetic areas 2 with different mixing ratios of low-coercivity material 3 and high-coercivity material 4 are applied.
- two printing inks with different mixing ratios are shown, but 3 or more printing inks with different mixing ratios of the magnetic materials can also be used be used.
- the magnetic areas 2 are arranged such that they are each equally spaced from one another.
- a reflective layer 5 with cutouts 7 is arranged above and below the magnetic areas 2, the cutouts in the two reflective layers being arranged in register with one another. In the areas free of the magnetic layer, the recesses 7 of the two reflective layers 5 can be seen in transmitted light.
- the coding results on the one hand from the mixture of the specified proportions of both low-coercivity and high-coercivity material of the respective magnetic areas 2 and the different mixing ratios in the printing inks used.
- a black, white or colored printing layer 6 can be provided instead of the reflective layer 5, a black, white or colored printing layer 6 can be provided.
- the reflective layer 5 or the printing layer 6 with cutouts 7 can also be provided on the side of the carrier substrate 1 opposite the magnetic areas 2.
- FIG 4 An embodiment according to the invention is shown in which printing inks (and thus magnetic areas 2) with the same mixing ratio of low-coercive and high-coercive materials 3, 4 with different thickness and the same width are directly adjacent to one another on the partially applied, reflective layer 5 with recesses 7 on a carrier substrate 1 is printed, as a result of which several groups of magnetic areas are formed. Areas free of magnetic layers are provided between each of the three groups of magnetic areas shown.
- the mixing ratio of the low-coercivity 3 and the high-coercivity 4 of each ink of each magnetic area group is in this embodiment 1: 1.
- the different thicknesses of the printing inks result in different remanences within the magnetic area groups consisting of four adjacent printing inks of different thicknesses.
- a security element has only a single group of magnetic areas.
- FIG. 8 shows an embodiment similar to that of FIG Fig. 4 shown with the difference that at least one magnetic area group is formed by printing inks which have a different mixing ratio of low-coercive and high-coercive materials 3, 4 than printing inks of other magnetic area groups.
- one or more groups of magnetic areas is formed by printing inks which have mutually different mixing ratios of low-coercivity and high-coercivity materials 3, 4.
- the printing inks 2 of a magnetic area group can also be applied in such a way that, viewed in one direction, they each have a decreasing or increasing thickness, wherein the increase or decrease in thickness can also take place progressively, as shown in FIG Fig.4c is shown.
- the thickness of the printing inks or magnetic areas, or else, can be designed in such a way that neither a gradient nor a step-shaped, continuous increase or decrease is developed in this regard, as shown in FIG Fig.4d is shown.
- a partially applied black, white or colored printing layer 6 can be provided instead of the partially applied, reflective layer 5, a partially applied black, white or colored printing layer 6 can be provided.
- the reflective layer 5 or the printing layer 6 with cutouts 7 can also be provided on the side of the carrier substrate opposite the groups of magnetic areas.
- the magnetic area groups each with printing inks with a fixed mixing ratio of low-coercive material 3 and high-coercive material 4 in different widths and different thicknesses are applied to the partially applied reflective layer 5 with recesses 7 on a carrier substrate 1. Areas free of a magnetic layer are provided between the three groups of magnetic areas shown.
- the mixing ratio of low-coercivity material 3 and high-coercivity material 4 per printing ink is 2: 1 for each magnetic area group in this exemplary embodiment.
- the different thicknesses of the printing inks result in different remanences within the three groups of magnetic areas.
- the mixing ratios and thicknesses of each printing ink in the embodiment according to Fig. 5 can be varied.
- a black, white or colored printing layer 6 can be provided instead of the reflective layer 5, a black, white or colored printing layer 6 can be provided.
- the reflective layer 5 or the printing layer 6 with cutouts 7 can also be provided on the side of the carrier substrate 1 opposite the groups of magnetic areas.
- a protective layer 8 is provided between the reflective layer 5 and the layer with magnetic areas / printing inks 2.
- a Such a protective layer optionally prevents the magnetic layer and the reflective layer from influencing one another, for example due to corrosion, when the security element 18 is exposed to moisture.
- Two different printing inks are used for the magnetic areas 2, each with a different mixing ratio of low-coercivity material 3 and high-coercivity material 4.
- a black, white or colored printing layer 6 can be provided instead of the reflective layer 5, a black, white or colored printing layer 6 can be provided.
- FIG. 7 The illustrated embodiment is applied to a carrier substrate 1 made of a transparent plastic film, an embossed lacquer layer 9, which is provided with a first partially applied, reflective layer 5 with cutouts 7a.
- a protective layer 8 On this layer 5 is a protective layer 8 and on this protective layer spaced apart magnetic areas 2 are applied, for which two different printing inks are used, each with a different mixing ratio of low-coercivity material 3 and high-coercivity material 4.
- a protective lacquer layer 8 is then again applied, and a second reflective layer 5 with recesses 7b is again applied to this protective lacquer layer 8.
- the cutouts 7b in this second reflective layer 5 are situated such that the cutouts 7a in the first reflective layer are at least partially visible.
- the security element is provided on both sides with an adhesive layer 13 in order to improve the anchoring in a value document.
- a black, white or colored printing layer 6 can be provided instead of the first and / or second reflective layer 5.
- FIG 8 an embodiment is shown in which on a transparent carrier substrate 1 a release layer 10 and on this release layer a thin-layer element with a color shift effect from an absorber layer 12, a dielectric spacer layer 11 applied thereon and a reflective layer 5 with cutouts 7 is applied.
- a transparent protective layer 8 is applied over this layer structure, on which magnetic areas 2, which are spaced apart and which consist of a printing ink with fixed proportions of low-coercivity material 3 and high-coercivity material 4, are printed.
- a second transparent protective layer 8 is then applied, on which in turn a second reflective layer 5 with cutouts 7 is situated.
- An adhesive layer 13 through which the security element can be fixed to an object is applied to the entire structure.
- the carrier substrate 1 is then peeled off.
- the security element shows a color shift effect and a hidden magnetic coding.
- a black, white or colored printing layer 6 can be provided instead of the second reflective layer 5.
- a primer layer or primer layer 15 is applied to a metallic carrier substrate 1.
- groups of magnetic areas are applied, which are made up of directly adjacent magnetic areas / printing inks 2 with a fixed mixing ratio of low-coercive and high-coercive materials 3, 4 with different thicknesses and the same width. Areas free of magnetic layers are provided between the groups of magnetic areas.
- a thin-film structure with a color-shifting effect consisting of a partially applied, reflective layer 5, a full-area dielectric spacer layer 11 and an absorber layer 12 is arranged over the groups of magnetic areas.
- the partially applied, reflective Layer 5 is applied in precise register, that is to say in a defined position in relation to the respective adjoining magnetic areas 2.
- the security element shows a partial color shift effect as well as a hidden magnetic coding.
- the dielectric spacer layer 11 and / or the absorber layer 12 can also be partially applied, preferably in register with the partially applied reflective layer 5.
- the illustrated embodiment of the security element has a dark colored or black printing layer 6 with cutouts 7 applied to a transparent carrier substrate 1.
- Magnetic areas 2 are applied to this printing layer, for which two printing inks with different mixing ratios of low-coercivity material and high-coercivity material 3, 4 are used.
- a liquid crystal layer (LC layer) 14 is applied to this structure with a protective layer 8 in between. In those areas in which the magnetic areas 2 and / or the printing layer are located under the LC layer 14, a color shift effect can be seen due to the dark color of these areas.
- Figure 10 an embodiment is analogous Figure 8a shown, in which an additional lacquer layer with a diffractive structure 9 is applied to the color-shifting thin-layer structure.
- the diffractive structure is provided with a partially applied reflective layer 5.
- the security element shows a partial color shift effect and additionally a diffractive effect, as well as a hidden magnetic coding.
- FIG 11 an embodiment is shown in which a protective layer 8 and then a reflective layer on a metallic carrier substrate 1
- Layer 5 is applied with recesses 7.
- Magnetic areas 2 with a fixed mixing ratio of low-coercive material 3 and high-coercive material 4 in different widths and different thicknesses are applied directly adjacent to one another in register with the reflective areas and thus form magnetic area groups that are spaced apart from one another. Areas free of magnetic layers are provided between the three groups of magnetic areas shown and are arranged in register with the cutouts in the reflective layer 5.
- the mixing ratio of low-coercivity material 3 and high-coercivity material 4 is 2: 1 in this exemplary embodiment.
- a colored printing layer 6 is applied to each of the groups of magnetic areas, likewise in register with the magnetic areas and the reflective layer 5.
- a reflective layer 5 or, alternatively, a printing layer 6 is applied to a carrier substrate 1.
- Magnetic areas 2 are applied to this layer 5/6, for which two different printing inks, each with a defined mixing ratio of low-coercivity material 3 and high-coercivity material 4, are used.
- a protective layer 8 is applied over the magnetic areas, on which a black, reflective layer 5 or a partial black printing layer 6 is applied.
- This layer 5 or 6 has recesses 7 which can be in the form of letters, characters, patterns, symbols, lines and / or the like.
- An LC layer 14 provided on a second carrier substrate is laminated against this layer structure by means of a laminating adhesive and the second carrier substrate is then peeled off.
- the layer structure can then be provided with an adhesive layer 13.
- the color shift effect of the LC layer 14 can only be seen in those areas in which the LC Layer 14 is situated over the black reflective layer 5 or the black printing layer 6.
- the security element shows a partial color shift effect and a hidden magnetic coding.
- Figure 12a an embodiment with a partial color shift effect is also shown, which is, however, produced by using a printing ink with interference pigments 16.
- the structure essentially corresponds to that in Figure 12 structure shown, in this case, however, the printing ink with interference pigments can be applied directly to the protective layer.
- a thin polymer protective film can also be used, which is connected to the structure by means of a laminating adhesive.
- the mixing ratios of low-coercivity material 3 and high-coercivity material 4 given in the exemplary embodiments are merely exemplary and that other mixing ratios within the inventive range of 1:20 to 20: 1 can also be used in each exemplary embodiment.
- the individual magnetic areas 2 can also always have different mixing ratios.
- the security elements according to the invention are, if appropriate, suitable after appropriate packaging in the form of threads, strips or patches for at least partial embedding in or application on data carriers, in particular documents of value such as ID cards, cards, banknotes or labels, seals and the like. Furthermore, the security elements according to the invention can also be used in the form of a strip or patch to close an opening in a data carrier.
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Abstract
Sicherheitselement (18) mit maschinenlesbaren, magnetischen Sicherheitsmerkmalen (3,4) in Form von zumindest zwei magnetischen Materialen unterschiedlicher Koerzitivfeldstärke, die als Mischung in zumindest einer Druckfarbe (2) vorliegen, die auf einem Trägersubstrat (1) aufgebracht ist wobei die mindestens eine Druckfarbe (2) in zumindest zwei Bereichen auf dem Sicherheitselement (18) in gleicher und/oder unterschiedlicher Dicke vorgesehen ist und ein definiertes Mischungsverhältnis der mindestens zwei magnetischen Materialien (3,4) unterschiedlicher Koerzitivfeldstärke in der zumindest einen Druckfarbe (2) vorliegt. Security element (18) with machine-readable, magnetic security features (3, 4) in the form of at least two magnetic materials of different coercive field strength, which are present as a mixture in at least one printing ink (2) which is applied to a carrier substrate (1), the at least one printing ink (2) is provided in at least two areas on the security element (18) in the same and / or different thickness and there is a defined mixing ratio of the at least two magnetic materials (3, 4) of different coercive field strength in the at least one printing ink (2).
Description
Die Erfindung betrifft ein Sicherheitselement zur Absicherung von Datenträgern, Wertdokumenten und dergleichen, das maschinell lesbare Sicherheitsmerkmale, insbesondere magnetische Merkmale aufweist.The invention relates to a security element for securing data carriers, documents of value and the like, which has machine-readable security features, in particular magnetic features.
Sicherheitselemente, die maschinell lesbare Merkmale, insbesondere magnetische Merkmale aufweisen, sind bekannt.Security elements which have machine-readable features, in particular magnetic features, are known.
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Bei diesen zweidimensionalen magnetischen Informationen ist der Speicherplatz für Informationen durch die zweidimensionale Orientierung jedoch beschränkt.In the case of this two-dimensional magnetic information, however, the storage space for information is limited by the two-dimensional orientation.
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Aufgabe der Erfindung war es ein Sicherheitselement mit maschinenlesbaren, insbesondere magnetischen Sicherheitsmerkmalen bereitzustellen, das eine erhöhte Fälschungssicherheit aufweist, einfach herzustellen ist und eine eindeutige Identifikation ermöglicht.The object of the invention was to provide a security element with machine-readable, in particular magnetic security features, which has an increased level of protection against forgery, is easy to produce and enables clear identification.
Gegenstand der Erfindung ist daher ein Sicherheitselement mit maschinenlesbaren Sicherheitsmerkmale in Form von magnetischen Sicherheitsmerkmalen, das mindestens zwei magnetische Materialen aufweist, die eine unterschiedliche Koerzitivfeldstärke aufweisen, wobei die magnetischen Materialien unterschiedlicher Koerzitivfeldstärke als Mischung in zumindest einer Druckfarbe vorliegen, die auf einer Trägerfolie aufgebracht ist, wobei die mindestens eine Druckfarbe in zumindest zwei Bereichen auf dem Sicherheitselement in gleicher und/oder unterschiedlicher Dicke vorgesehen ist und ein definiertes Mischungsverhältnis der mindestens zwei unterschiedlichen magnetischen Materialien unterschiedlicher Koerzitivfeldstärke in der zumindest einen Druckfarbe vorliegt.The subject matter of the invention is therefore a security element with machine-readable security features in the form of magnetic security features, which has at least two magnetic materials which have different coercive field strengths, the magnetic materials of different coercive field strengths being present as a mixture in at least one printing ink which is applied to a carrier film, wherein the at least one printing ink is provided in at least two areas on the security element in the same and / or different thickness and a defined mixing ratio of the at least two different ones magnetic materials of different coercive force in which at least one printing ink is present.
Durch das Aufbringen der zumindest einen Druckfarbe in unterschiedlichen Bereichen der Trägerfolie werden auf dieser verschiedene Magnetbereiche ausgebildet, wobei jeder Magnetbereich durch genau eine Druckfarbe aufgebaut ist und die Magnetbereiche entweder unmittelbar aneinander grenzen können oder zueinander beabstandet sein können.By applying the at least one printing ink in different areas of the carrier film, different magnetic areas are formed thereon, each magnetic area being composed of exactly one printing ink and the magnetic areas either being directly adjacent to one another or being able to be spaced from one another.
Durch den Einsatz eines definierten Mischungsverhältnisses, ist es möglich eine eindeutige, schwer fälschbare magnetische Codierung zu erzeugen. Dabei ist es nicht nötig, dass die Anordnung der Magnetbereiche eine magnetische Codierung bildet.By using a defined mixing ratio, it is possible to generate a clear magnetic coding that is difficult to forge. It is not necessary for the arrangement of the magnetic areas to form a magnetic coding.
Die magnetische Codierung erfolgt erfindungsgemäß durch die Mischung der mindestens zwei magnetischen Materialien unterschiedlicher Koerzitivfeldstärke in der Druckfarbe, die die Magnetbereiche bildet, und deren Aufbringung mit gleicher oder unterschiedlicher Dicke auf dem Sicherheitselement. Dabei ist es zunächst vollkommen ausreichend, wenn lediglich eine einzige Druckfarbe mit definiertem Mischungsverhältnis zum Einsatz kommt. Dies hat den Vorteil der einfachen und kostengünstigen Herstellung bei dennoch hoher Sicherheit, da bei Verwendung einer einzigen Druckfarbe keine Produktionsschwankungen verglichen mit dem Übereinanderdrucken von mehreren Druckfarben Einfluss nehmen können. Darüberhinaus kann die gleiche Druckfarbe zur Speisung mehrerer Durckzylinder verwendet werden. Die verschiedenen Signalstärken wird ausschließlich durch die verschiedene Dicken erzeugt, mit welchen die Druckfarbe aufgetragen wird.The magnetic coding takes place according to the invention by mixing the at least two magnetic materials of different coercive field strengths in the printing ink that forms the magnetic areas and applying them to the security element with the same or different thicknesses. It is initially completely sufficient if only a single printing ink with a defined mixing ratio is used. This has the advantage of simple and inexpensive production with a high level of security, since when a single printing ink is used, no production fluctuations can have an influence compared to printing several printing inks over one another. In addition, the same printing ink can be used to feed several printing cylinders. The different signal strengths are generated exclusively by the different thicknesses with which the printing ink is applied.
Bei den beiden magnetischen Materialien handelt es sich bevorzugt um ein Material mit hoher und ein Material mit niedriger Koerzitivfeldstärke, wobei unter einem magnetischen Material hoher Koerzitivfeldstärke in diesem Zusammenhang Materialien mit > 1500 Oe, unter einem Material niedriger Koerzitivfeldstärke Materialien < 500 Oe verstanden. Die magnetischen Materialien werden vorzugsweise so gewählt, dass sie sich beim Aufmagnetisieren gegenseitig nicht beeinflussen. Da üblicherweise beim Aufmagnetisieren ein 3-fach stärkeres magnetisches Feld für jedes magnetische Material verwendet wird, ist der Unterschied in der Koerzitivfeldstärke der magnetischen Materialien entsprechend zu wählen.The two magnetic materials are preferably a material with a high and a material with a low coercive field strength, with a magnetic material having a high coercive field strength in this context materials with> 1500 Oe and a material lower Understood coercive field strength materials <500 Oe. The magnetic materials are preferably chosen so that they do not influence one another when magnetized. Since a 3 times stronger magnetic field is usually used for each magnetic material during magnetization, the difference in the coercive field strength of the magnetic materials must be selected accordingly.
Zur Verbesserung der Sicherheit können auch mehrere Druckfarben zum Einsatz kommen, wobei unterschiedliche Druckfarben jeweils unterschiedliche Mischungsverhältnisse der mindestens zwei magnetischen Materialien aufweisen.Several printing inks can also be used to improve security, with different printing inks each having different mixing ratios of the at least two magnetic materials.
In einer Ausführungsvariante der Erfindung ist es vorgesehen, dass zueinander benachbarte Magnetbereiche durch unterschiedliche Druckfarben aufgebaut sind.In a variant embodiment of the invention, it is provided that mutually adjacent magnetic areas are built up using different printing inks.
In einer weiteren Ausführungsvariante der Erfindung sind die Magnetbereiche, die durch die mindestens eine Druckfarbe gebildet werden, voneinander beabstandet aufgebracht, es kann aber auch vorteilhaft sein zwei oder mehrere, gleiche oder unterschiedliche Druckfarben unterschiedlicher Dicke in lateraler Richtung direkt aneinandergrenzend aufzubringen, so dass dadurch eine Magnetbereichsgruppe entsteht. Mehrere Magnetbereichsgruppen können dabei zueinander beabstandet, vorzugsweise zueinander gleich beabstandet auf dem Trägersubstrat angeordnet sein.In a further embodiment variant of the invention, the magnetic areas that are formed by the at least one printing ink are applied at a distance from one another, but it can also be advantageous to apply two or more, identical or different printing inks of different thicknesses directly adjacent to one another in the lateral direction, so that one Magnet area group is created. A plurality of groups of magnetic areas can be arranged on the carrier substrate at a distance from one another, preferably equally spaced from one another.
Dabei kann es weiters vorgesehen sein, dass die Druckfarben einer Magnetbereichsgruppe unterschiedliche Dicken aufweisen, wobei die Dicken vorzugsweise von einer Seite der Magnetbereichsgruppe zur gegenüberliegenden Seite hin zu- bzw. abnehmend verlaufen.It can furthermore be provided that the printing inks of a magnetic area group have different thicknesses, the thicknesses preferably increasing or decreasing from one side of the magnetic area group to the opposite side.
Die Druckfarbe, die eine Mischung der mindestens zwei magnetischen Materialien unterschiedlicher Koerzitivfeldstärke enthält, wird zumindest bereichsweise auf ein Trägersubstrat aufgebracht.The printing ink, which contains a mixture of the at least two magnetic materials of different coercive field strength, is applied to a carrier substrate at least in certain areas.
Als Trägersubstrate kommen beispielsweise transparente Trägerfolien vorzugsweise flexible Kunststofffolien, beispielsweise aus Polyimid (PI), Polypropylen (PP), monoaxial orientiertem Polypropylen (MOPP), biaxial orientierten Polypropylen (BOPP), Polyethylen (PE), Polyphenylensulfid (PPS), Polyetheretherketon, (PEEK) Polyetherketon (PEK), Polyethylenimid (PEI), Polysulfon (PSU), Polyaryletherketon (PAEK), Polyethylennaphthalat (PEN), flüssigkristalline Polymere (LCP), Polyester, Polybutylenterephthalat (PBT), Polyethylenterephthalat (PET), Polyamid (PA), Polycarbonat (PC), Cycloolefincopolymere (COC), Polyoximethylen (POM), Acrylnitril-butadienstyrol (ABS), Polyvinylchlorid (PVC) Ethylentetrafluorethylen (ETFE), Polytetrafluorethylen (PTFE), Polyvinylfluorid (PVF), Polyvinylidenfluorid (PVDF) und Ethylen-Tetrafluorethylen-Hexafluorpropylen-Fluorterpolymer (EFEP) in Frage. Die Trägerfolien können transparent, transluzent, semiopak oder opak sein.The carrier substrates used are, for example, transparent carrier films, preferably flexible plastic films, for example made of polyimide (PI), polypropylene (PP), monoaxially oriented polypropylene (MOPP), biaxially oriented polypropylene (BOPP), polyethylene (PE), polyphenylene sulfide (PPS), polyetheretherketone (PEEK) ) Polyetherketone (PEK), polyethyleneimide (PEI), polysulfone (PSU), polyaryletherketone (PAEK), polyethylene naphthalate (PEN), liquid crystalline polymers (LCP), polyester, polybutylene terephthalate (PBT), polyethylene terephthalate (PET), polyamide (PA), polycarbonate (PC), cycloolefin copolymers (COC), polyoxymethylene (POM), acrylonitrile butadiene styrene (ABS), polyvinyl chloride (PVC) ethylene tetrafluoroethylene (ETFE), polytetrafluoroethylene (PTFE), polyvinyl fluoride (PVF), polyvinylidene fluoride (PVDF) and ethylene-hexafluoroethylene -Fluorterpolymer (EFEP) in question. The carrier films can be transparent, translucent, semi-opaque or opaque.
Die Trägerfolien weisen vorzugsweise eine Dicke von 5 - 700 µm, bevorzugt 5 - 200 µm, besonders bevorzugt 5 - 50 µm auf.The carrier foils preferably have a thickness of 5-700 μm, more preferably 5-200 μm, particularly preferably 5-50 μm.
Ferner können als Trägersubstrat auch Metallfolien, beispielsweise Al-, Cu-, Sn-, Ni-, Fe- oder Edelstahlfolien mit einer Dicke von 5 - 200 µm, vorzugsweise 10 bis 80 µm, besonders bevorzugt 20 - 50 µm dienen. Die Folien können auch oberflächenbehandelt, beschichtet oder kaschiert, beispielsweise mit Kunststoffen oder lackiert sein.Furthermore, metal foils, for example Al, Cu, Sn, Ni, Fe or stainless steel foils with a thickness of 5-200 μm, preferably 10 to 80 μm, particularly preferably 20-50 μm, can also serve as the carrier substrate. The foils can also be surface-treated, coated or laminated, for example with plastics or painted.
Ferner können als Trägersubstrate auch zellstofffreies oder zellstoffhaltiges Papier, thermoaktivierbares Papier oder Verbunde mit Papier, beispielsweise Verbunde mit Kunststoffen mit einem Flächengewicht von 20 - 500 g/m2, vorzugsweise 40 - 200 g/m2 verwendet werden.Further, as carrier substrates also cellulose-free or cellulose-containing paper, heat-activatable paper or composites with paper, for example, composites with plastics with a grammage 20-500 g / m 2, preferably 40-200 g / m 2 may be used.
Die erfindungsgemäßen Sicherheitsmerkmale können dabei auf das Trägersubstrat aufgebracht werden, um ein Sicherheitselement zu bilden. Dieses Sicherheitselement kann anschließend konfektioniert werden und als Streifen, Faden oder Patch in einen Datenträger oder ein Wertdokument zumindest teilweise eingebettet oder auf dieses appliziert werden.The security features according to the invention can be applied to the carrier substrate in order to form a security element. This security element can then be assembled and at least partially embedded or applied to a data carrier or a value document as a strip, thread or patch.
Es ist auch möglich, das Sicherheitselement als Transferelement auszubilden, wobei nach der Applikation auf den Datenträger oder das Wertdokument das Trägersubstrat abgezogen werden kann.It is also possible to design the security element as a transfer element, with the carrier substrate being able to be pulled off after application to the data carrier or the value document.
Alternativ können die Sicherheitsmerkmale aber auch direkt auf dem Datenträger oder dem Wertdokument erzeugt werden, indem an einer vorbestimmten Stelle des Datenträgers oder Wertdokuments die Farbe aus mindestens zwei magnetischen Materialien unterschiedlicher Koerzitivfeldstärke zumindest bereichsweise aufgedruckt wird.Alternatively, however, the security features can also be generated directly on the data carrier or the value document by printing the color from at least two magnetic materials with different coercive field strengths at least in areas at a predetermined location on the data carrier or value document.
Erfindungsgemäß wird eine Druckfarbe verwendet, die mindestens zwei magnetische Materialien unterschiedlicher Koerzitivfeldstärke enthält.According to the invention, a printing ink is used which contains at least two magnetic materials of different coercive field strength.
Das Mischungsverhältnis der magnetischen Materialien unterschiedlicher Koerzitivfeldstärke ist dabei definiert eingestellt. Bei Verwendung von zwei magnetischen Materialien unterschiedlicher Koerzitivfeldstärke kann dabei das Mischungsverhältnis zwischen einem magnetischen Material mit hoher Koerzitivfeldstärke und einem magnetischen Material mit niedriger Koerzitivfeldstärke zwischen 20:1 bis 1:20, bevorzugt 10:1 bis 1:10, besonders bevorzugt 5:1 bis 1:5 liegen.The mixing ratio of the magnetic materials of different coercive field strengths is set in a defined manner. When using two magnetic materials with different coercive field strengths, the mixing ratio between a magnetic material with high coercive field strength and a magnetic material with low coercive field strength can be between 20: 1 to 1:20, preferably 10: 1 to 1:10, particularly preferably 5: 1 to 1: 5.
Das Mischungsverhältnis und damit die Druckfarbe kann dabei für alle Magnetbereiche des Sicherheitselements gleich sein.The mixing ratio and thus the printing ink can be the same for all magnetic areas of the security element.
Das Verhältnis der unterschiedlichen magnetischen Materialien bleibt beim Druck unabhängig von der Dicke der aufgebrachten Druckfarben exakt konstant. Werden Druckfarben unterschiedlicher Dicke aufgebracht, entstehen bei gleichem Verhältnis der magnetischen Materialien Magnetbereiche unterschiedlicher Remanenz.The ratio of the different magnetic materials remains exactly constant during printing, regardless of the thickness of the printing inks applied. If printing inks of different thicknesses are applied, magnetic areas of different remanence arise with the same ratio of magnetic materials.
Es ist aber auch möglich für verschiedene Magnetbereiche des Sicherheitselements unterschiedliche Mischungsverhältnisse vorzusehen. Hierzu werden zwei oder mehrere Druckfarben verwendet, wobei die Mischungsverhältnisse der magnetischen Materialien in den Druckfarben unterschiedlich sind.However, it is also possible to provide different mixing ratios for different magnetic areas of the security element. Two or more printing inks are used for this, the mixing ratios of the magnetic materials in the printing inks being different.
In einer weiteren Ausführungsform können zusätzlich zu den Magnetbereichen gebildet aus einer Druckfarbe mit einer Mischung aus zwei oder mehreren magnetischen Materialien mit unterschiedlicher Koerzitivfeldstärke auf dem Sicherheitselement Magnetbereiche vorgesehen sein, die nur mit magnetischem Material mit niedriger oder nur aus magnetischem Material mit hoher Koerzitivfeldstärke bestehen. Dabei sind auf dem Sicherheitselement vorzugsweise neben den Magnetbereichen gebildet aus einer Druckfarbe mit einer Mischung aus zwei oder mehreren magnetischen Materialien mit unterschiedlicher Koerzitivfeldstärke entweder Bereiche aus magnetischem Material niedriger Koerzitivfeldstärke oder Bereiche aus magnetischem Material hoher Koerzitivfeldstärke vorgesehen.In a further embodiment, in addition to the magnetic areas formed from a printing ink with a mixture of two or more magnetic materials with different coercive field strengths, magnetic areas can be provided on the security element that consist only of magnetic material with low or only magnetic material with high coercive field strength. In this case, either areas of magnetic material of low coercive field strength or areas of magnetic material of high coercive field strength are provided on the security element next to the magnetic areas formed from a printing ink with a mixture of two or more magnetic materials with different coercive field strength.
Das Sicherheitselement kann weitere Schichten mit Sicherheitsmerkmalen aufweisen.The security element can have further layers with security features.
So kann beispielsweise auf dem Trägersubstrat unter und/oder über den Magnetschichtbereichen eine opake Schicht in Form einer reflektierenden Schicht oder einer Druckschicht beispielsweise einer farbigen, schwarzen, oder weißen Druckschicht vorgesehen werden, die vollflächig oder partiell aufgebracht werden kann.For example, an opaque layer in the form of a reflective layer or a printed layer, for example a colored, black or white printed layer, can be provided on the carrier substrate under and / or above the magnetic layer areas, which can be applied over the entire surface or partially.
Unter einer reflektierenden Schicht wird in diesem Zusammenhang beispielsweise eine metallische Schicht aus Al, Cu, Ag, Au, Pd, Pt, Sn, In oder deren Legierungen und dergleichen verstanden, die durch PVD oder CVD Verfahren, durch Sputter, Elektronenstrahlverdampfung oder dergleichen aufgebracht sein. Unter einer reflektierenden Schicht wird beispielsweise auch eine metallisch erscheinende Schicht verstanden wie beispielsweise eine Lack- oder Druckfarbenschicht, die metallische Pigmente oder Flakes, oder Pigmente oder Flakes aus Metallverbindungen, wie beispielsweise Metalloxiden, enthält. Diese Schichten werden vorzugsweise durch bekannte Druckverfahren, durch Aufrakeln oder Aufstreichen aufgebracht.In this context, a reflective layer is understood to mean, for example, a metallic layer made of Al, Cu, Ag, Au, Pd, Pt, Sn, In or their alloys and the like, which are applied by PVD or CVD processes, by sputtering, electron beam evaporation or the like . A reflective layer is also understood as meaning, for example, a layer that appears metallic, such as a lacquer or printing ink layer that contains metallic pigments or flakes, or pigments or flakes made from metal compounds, such as metal oxides. These layers are preferably applied by known printing processes, by knife-coating or brushing.
Darüberhinaus kann es sich bei der reflektierenden Schicht auch um eine HRI (High Refractive Index) Schicht handeln, also beispielsweise um eine Druckschicht in Form einer Lackschicht oder einer Farbe mit hohem Brechungsindex.In addition, the reflective layer can also be an HRI (High Refractive Index) layer, that is to say, for example, a printing layer in the form of a lacquer layer or a color with a high refractive index.
Eine partiell aufgebrachte reflektierende Schicht bzw. eine Druckschicht kann vorzugsweise Aussparungen in Form von Buchstaben, Zahlen, Mustern, Zeichen, Symbolen, Linien und dergleichen aufweisen.A partially applied reflective layer or a printed layer can preferably have gaps in the form of letters, numbers, patterns, characters, symbols, lines and the like.
Die Aussparungen in der reflektierenden Schicht sind dabei vorzugsweise so angeordnet, dass sie in den magnetschichtfreien Bereichen liegen. Dadurch werden einerseits die Magnetschichtbereiche visuell abgedeckt, sodass sie auch bei Betrachtung im Durchlicht nicht erkennbar sind, andererseits entsteht durch die im Durchlicht erkennbaren Aussparungen in der metallischen bzw. metallisch erscheinenden Schicht bzw. der Druckschicht ein zusätzliches Sicherheitsmerkmal.The cutouts in the reflective layer are preferably arranged in such a way that they lie in the areas free of the magnetic layer. As a result, on the one hand, the magnetic layer areas are visually covered so that they cannot be seen even when viewed in transmitted light; on the other hand, the recesses in the metallic or metallic-appearing layer or the printed layer that can be seen in transmitted light create an additional security feature.
Eine derartige reflektierende Schicht kann alternativ auf der den Magnetbereichen gegenüberliegenden Seite das Trägersubstrats oder auf beiden Seiten des Trägersubstrats vorgesehen sein.Such a reflective layer can alternatively be provided on the side of the carrier substrate opposite the magnetic areas or on both sides of the carrier substrate.
Für den Fall, dass die reflektierende Schicht auf derselben Seite des Trägersubstrats unter und/oder über den Magnetbereichen vorgesehen ist, kann es zweckmäßig sein, zwischen dieser Schicht und den Magnetbereichen eine Schutzschicht vorzusehen um eine gegenseitige Beeinflussung der der magnetischen Schicht und der metallischen Schicht zu verhindern. Durch die Schutzschicht werden beispielsweise Korrosionserscheinungen, insbesondere wenn das Sicherheitselement Feuchtigkeit ausgesetzt ist, verhindert, insbesondere wenn die Schicht metallisch ist oder metallische Pigmente oder Flakes beinhaltet.In the event that the reflective layer is provided on the same side of the carrier substrate below and / or above the magnetic areas, it may be useful to provide a protective layer between this layer and the magnetic areas in order to mutually influence the magnetic layer and the metallic layer prevent. The protective layer prevents, for example, signs of corrosion, in particular if the security element is exposed to moisture, in particular if the layer is metallic or contains metallic pigments or flakes.
Diese Schutzschicht kann als dünne Folie ausgeführt sein, aber auch als Schutzlackschicht.This protective layer can be designed as a thin film, but also as a protective lacquer layer.
Ferner können auf dem Trägersubstrat oder im Schichtaufbau auch optisch variable Sicherheitsmerkmale vorliegen, beispielsweise diffraktive Strukturen, wie Oberflächenreliefs, Hologramme, Beugungsgitter und dergleichen, oder auch Schichten, die einen blickwinkelabhängigen Farbwechseleffekt aufweisen. Derartige Sicherheitsmerkmale mit blickwinkelabhängigem Farbwechseleffekten werden beispielsweise durch Dünnschichtelemente, die eine Reflexionsschicht, eine dielektrischen Abstandsschicht und eine Absorberschicht aufweisen, oder durch cholesterische Flüssigkeitskristallschichten kombiniert mit einer dunklen, vorzugsweise schwarzen Druckschicht oder Metallisierung gebildet. Es können aber auch Druckschichten mit Interferenzpigmenten oder flüssigkristallinen Pigmenten zur Herstellung einer Schicht mit blickwinkelabhängigem Farbwechseleffekt verwendet werden.Furthermore, optically variable security features can also be present on the carrier substrate or in the layer structure, for example diffractive structures, such as surface reliefs, holograms, diffraction gratings and the like, or also layers which have a viewing angle-dependent color change effect. Such security features with viewing angle dependent color change effects are formed, for example, by thin-film elements that have a reflective layer, a dielectric spacer layer and an absorber layer, or by cholesteric liquid crystal layers combined with a dark, preferably black, printed layer or metallization. However, it is also possible to use printed layers with interference pigments or liquid-crystalline pigments to produce a layer with a viewing angle-dependent color change effect.
Ferner kann das Sicherheitselement ggf. weitere farbige, schwarze, graue oder weiße Druckschichten aufweisen.Furthermore, the security element can optionally have further colored, black, gray or white printed layers.
Alle diese Sicherheitsmerkmale können vollflächig oder partiell auf einer oder beiden Seiten des Trägersubstrat aufgebracht werden. Dabei können die Sicherheitsmerkmale register- und/oder passergenau, beispielsweise zu den Magnetbereichen aufgebracht werden.All of these security features can be applied over the entire surface or partially on one or both sides of the carrier substrate. The Security features are applied in register and / or register, for example to the magnetic areas.
Unter dem Begriff registergenau bzw. passergenau wird eine definierte Position der Merkmale zueinander verstanden.The term in register or register is understood to mean a defined position of the features with respect to one another.
Diese Sicherheitsmerkmale können auch derart aufgebracht werden, dass sie zumindest teilweise in den magnetschichtfreien Bereichen liegen bzw. diese zumindest teilweise verdecken.These security features can also be applied in such a way that they are at least partially in the areas free of the magnetic layer or at least partially cover them.
Die weiteren Sicherheitsmerkmale können auch auf einem zweiten Trägersubstrat bereitgestellt werden und durch Laminieren oder Kaschieren mit dem Schichtaufbau auf dem die Magnetbereiche liegen, verbunden werden.The further security features can also be provided on a second carrier substrate and connected to the layer structure on which the magnetic areas lie by lamination or lamination.
Gegebenenfalls kann dann das zweite Trägersubstrat abgezogen werden. Zweckmäßigerweise kann das Sicherheitselement ein- und/oder beidseitig mit einer Schutzlackschicht versehen werden um die auf dem Sicherheitselement vorhandenen Sicherheitsmerkmale gegen mechanische, physikalische und/oder chemische Einflüsse zu schützen.If necessary, the second carrier substrate can then be pulled off. The security element can expediently be provided with a protective lacquer layer on one and / or both sides in order to protect the security features present on the security element against mechanical, physical and / or chemical influences.
Die Schutzlackschicht kann beispielsweise auf Basis von Nitrocellulose, Acrylaten und deren Copolymeren, Polyamiden und deren Copolymeren Polyvinylchloriden und deren Copolymeren aufgebaut sein oder aus einem vernetzenden Lack bestehen.The protective lacquer layer can, for example, be based on nitrocellulose, acrylates and their copolymers, polyamides and their copolymers, polyvinyl chlorides and their copolymers or consist of a crosslinking lacquer.
Ferner kann das Sicherheitselement ein- oder beidseitig mit einer Kleberschicht versehen werden, um eine Festlegung auf oder in einem Datenträger oder Wertdokumente zu ermöglichen. Diese Kleberschicht kann entweder in Form einer Heißsiegel-, Kaltsiegel- oder Selbstklebebeschichtung ausgeführt sein.Furthermore, the security element can be provided with an adhesive layer on one or both sides in order to enable it to be fixed on or in a data carrier or value documents. This adhesive layer can be designed either in the form of a heat-seal, cold-seal or self-adhesive coating.
Die Schutzlackschicht und/oder die Kleberschicht können auch pigmentiert sein, wobei als Pigmente alle bekannten Pigmente oder Farbstoffe, beispielsweise TiO2, ZnS, Kaolin, ATO, FTO, Aluminium, Chrom- und Siliziumoxide oder beispielsweise organische Pigmente wie Phthalocyaninblau, i-Indolidgelb, Dioxazinviolett und dergleichen verwendet werden können. Ferner können lumineszierende Farbstoffe bzw. Pigmente, die im sichtbaren, im UV-Bereich oder im IR-Bereich fluoreszieren bzw. phosphoreszieren, Effektpigmente wie Flüssigkeitskristalle, Perlglanz, Bronzen und/oder Multilayer-Farbumschlagpigmente und wärmeempfindliche Farben bzw. Pigmente zugegeben werden. Diese sind in allen möglichen Kombinationen einsetzbar. Zusätzlich können auch lumineszierende Pigmente allein oder in Kombination mit anderen Farbstoffen und/oder Pigmenten eingesetzt werden.The protective lacquer layer and / or the adhesive layer can also be pigmented, with all known pigments or dyes, for example TiO 2 , ZnS, kaolin, ATO, FTO, aluminum, chromium and silicon oxides or, for example, organic pigments such as phthalocyanine blue, i-indolide yellow, dioxazine violet and the like can be used. Furthermore, luminescent dyes or pigments which fluoresce or phosphoresce in the visible, UV or IR range, effect pigments such as liquid crystals, pearlescent luster, bronzes and / or multilayer color change pigments and heat-sensitive colors or pigments can be added. These can be used in all possible combinations. In addition, luminescent pigments can also be used alone or in combination with other dyes and / or pigments.
Das Sicherheitselement kann auch als Transferelement ausgeführt sein, wobei nach der Aufbringung des Sicherheitselements auf einen Datenträger oder ein Wertdokument das Trägersubstrat abgezogen werden kann.
Zur Erleichterung des Abziehens des Trägersubstrat kann dabei auf dem Trägersubstrat und unter dem auf dem Trägersubstrat vorhandenem Schichtaufbau eine Releaseschicht vorgesehen sein.The security element can also be designed as a transfer element, with the carrier substrate being able to be peeled off after the security element has been applied to a data carrier or a value document.
To make it easier to remove the carrier substrate, a release layer can be provided on the carrier substrate and under the layer structure present on the carrier substrate.
In den
In den Figuren bedeuten:
- 1
- das Trägersubstrat
- 2
- Magnetbereiche/Druckfarbe
- 3
- Anteil an hochkoerzitivem magnetischen Material in der Druckfarbe aus welchem der Magnetbereich gebildet ist
- 4
- Anteil an niedrigkoerzitivem magnetischen Material in der Druckfarbe aus welchem der Magnetbereich gebildet ist
- 5
- eine opake Schicht in Form einer reflektierenden Schicht
- 6
- eine opake Schicht in Form einer schwarzen, weißen, grauen oder farbigen Druckschicht
- 7
- Aussparungen in der opaken Schicht
- 8
- eine transparente Schutzschicht
- 9
- eine Lackschicht mit einer diffraktiven Struktur
- 10
- eine Releaseschicht
- 11
- eine dielektrische Abstandsschicht
- 12
- eine Absorberschicht
- 13
- eine Klebeschicht
- 14
- eine LC-Schicht
- 15
- eine Primerschicht oder eine Grundierungsschicht
- 16
- eine gedruckte farbkippende Schicht mit Interferenzpigmente
- 17
- eine Kaschierklebeschicht
- 18
- Sicherheitselement
- 19
- Bereiche mit Material niedriger/hoher Koerzitivfeldstärke
- 1
- the carrier substrate
- 2
- Magnetic areas / printing color
- 3
- Proportion of highly coercive magnetic material in the printing ink from which the magnetic area is formed
- 4th
- Proportion of low-coercivity magnetic material in the printing ink from which the magnetic area is formed
- 5
- an opaque layer in the form of a reflective layer
- 6th
- an opaque layer in the form of a black, white, gray or colored printing layer
- 7th
- Recesses in the opaque layer
- 8th
- a transparent protective layer
- 9
- a lacquer layer with a diffractive structure
- 10
- a release layer
- 11
- a dielectric spacer layer
- 12
- an absorber layer
- 13
- an adhesive layer
- 14th
- an LC layer
- 15th
- a primer coat or a primer coat
- 16
- a printed color-shifting layer with interference pigments
- 17th
- a laminating adhesive layer
- 18th
- Security element
- 19th
- Areas with material of low / high coercivity
Die in
Auf die reflektierende Schicht 5 sind voneinander beabstandete Magnetbereiche 2 aufgebracht. Die Magnetbereiche 2 weisen untereinander den gleichen Abstand auf und bilden auf diese Weise keine Codierung.
Die Codierung entsteht durch die Zusammensetzung der Magnetbereiche 2 und deren Abfolge.The coding is created by the composition of the
In der in
Durch die Magnetbereiche 2 aus der Druckfarbe mit festgelegten Anteilen sowohl aus niedrigkoerzitivem als auch hochkoerzitivem Material wird eine versteckte magnetische Codierung gebildet.A hidden magnetic coding is formed by the
Die Aussparungen 7 in der reflektierenden Schicht 5 können auch registergenau zu den magnetschichtfreien Bereichen ausgeführt sein.The
Alternativ kann anstelle der reflektierenden Schicht 5 eine schwarze, weiße oder farbige Druckschicht 6 vorgesehen sein.Alternatively, instead of the
In einer nicht dargestellten Ausführungsform kann die reflektierende Schicht 5 bzw. die Druckschicht 6 mit Aussparungen 7 auch auf der den Magnetbereichen 2 gegenüberliegenden Seite des Trägersubstrats vorgesehen sein.In an embodiment not shown, the
In
In
Auf der reflektierenden Schicht 5 sind voneinander beanstandete Magnetbereiche 2 aufgebracht, die jeweils aus einer Druckfarbe mit festgelegten Anteilen aus niedrigkoerzitivem Material 3 und hochkoerzitivem Material 4 bestehen. Das Verhältnis von niedrigkoerzitivem Material 3 zu hochkoerzitivem Material 4 beträgt in diesem Ausführungsbeispiel 4 : 1.
Die Magnetbereiche 2 weisen voneinander denselben Abstand auf, die Codierung ergibt sich durch die festgelegten Anteilen sowohl aus niedrigkoerzitivem als auch hochkoerzitivem Material der Druckfarbe.The
In einer nicht dargestellten Ausführungsform können die Magnetbereiche 2 mit unterschiedlicher Dicke aufgebracht sein, wodurch sich zusätzlich unterschiedliche Remanenzen ergeben.In an embodiment that is not shown, the
Alternativ kann anstelle der reflektierenden Schicht 5 eine schwarze, weiße oder farbige Druckschicht 6 vorgesehen sein.Alternatively, instead of the
In einer nicht dargestellten Ausführungsform kann die reflektierende Schicht 5 bzw. die Druckschicht 6 mit Aussparungen 7 auch auf der den Magnetbereichen 2 gegenüberliegenden Seite des Trägersubstrats vorgesehen sein.In an embodiment not shown, the
In
Über und unter den Magnetbereichen 2 ist jeweils eine reflektierende Schicht 5 mit Aussparungen 7 angeordnet, wobei die Aussparungen in den beiden reflektierenden Schichten registergenau zueinander angeordnet sind. In den magnetschichtfreien Bereichen sind die Aussparungen 7 der beiden reflektierenden Schichten 5 im Durchlicht erkennbar.A
Die Codierung ergibt sich einerseits aus der Mischung der festgelegten Anteile sowohl aus niedrigkoerzitivem als auch hochkoerzitivem Material der jeweiligen Magnetbereiche 2 sowie den unterschiedlichen Mischungsverhältnissen in den verwendeten Druckfarben.The coding results on the one hand from the mixture of the specified proportions of both low-coercivity and high-coercivity material of the respective
Alternativ kann anstelle der reflektierenden Schicht 5 eine schwarze, weiße oder farbige Druckschicht 6 vorgesehen sein.Alternatively, instead of the
In einer nicht dargestellten Ausführungsform kann die reflektierende Schicht 5 bzw. die Druckschicht 6 mit Aussparungen 7 auch auf der den Magnetbereichen 2 gegenüberliegenden Seite des Trägersubstrats 1 vorgesehen sein.In an embodiment not shown, the
In
In einer hierzu alternativen Ausführungsform kann es auch vorgesehen sein, dass ein Sicherheitselement lediglich eine einzige Magnetbereichsgruppe aufweist.In an embodiment alternative to this, it can also be provided that a security element has only a single group of magnetic areas.
Alternativ dazu kann es auch vorgesehen sein, dass, wie in
Die Druckfarben 2 einer Magnetbereichsgruppe können auch so aufgebracht sein, dass diese jeweils in eine Richtung betrachtet ab- oder zunehmende Dicke aufweisen, wobei die Zunahme oder Abnahme der Dicke auch verlaufend erfolgen kann, wie dies in
Alternativ kann anstelle der partiell aufgebrachten, reflektierenden Schicht 5 eine ebenfalls partiell aufgebrachte, schwarze, weiße oder farbige Druckschicht 6 vorgesehen sein.Alternatively, instead of the partially applied,
In einer nicht dargestellten Ausführungsform kann die reflektierende Schicht 5 bzw. die Druckschicht 6 mit Aussparungen 7 auch auf der den Magnetbereichsgruppen gegenüberliegenden Seite des Trägersubstrats vorgesehen sein.In an embodiment not shown, the
In dem in
Alternativ kann anstelle der reflektierenden Schicht 5 eine schwarze, weiße oder farbige Druckschicht 6 vorgesehen sein.Alternatively, instead of the
In einer nicht dargestellten Ausführungsform kann die reflektierende Schicht 5 bzw. die Druckschicht 6 mit Aussparungen 7 auch auf der den Magnetbereichsgruppen gegenüberliegenden Seite des Trägersubstrats 1 vorgesehen sein.In an embodiment not shown, the
In
Alternativ kann anstelle der reflektierenden Schicht 5 eine schwarze, weiße oder farbige Druckschicht 6 vorgesehen sein.Alternatively, instead of the
In der in
Alternativ kann anstelle der ersten und/oder zweiten reflektierenden Schicht 5 eine schwarze, weiße oder farbige Druckschicht 6 vorgesehen sein.Alternatively, instead of the first and / or second
In
Über diesem Schichtaufbau ist eine transparente Schutzschicht 8 aufgebracht, auf die voneinander beanstandete Magnetbereiche 2, die aus einer Druckfarbe mit festgelegten Anteilen aus niedrigkoerzitivem Material 3 und hochkoerzitivem Material 4 bestehen, aufgedruckt sind.A transparent
Anschließend ist eine zweite transparente Schutzschicht 8 aufgebracht, auf der wiederum eine zweite reflektierende Schicht 5 mit Aussparungen 7 situiert ist.A second transparent
Auf den gesamten Aufbau ist eine Kleberschicht 13 aufgebracht, durch die das Sicherheitselement auf einem Gegenstand fixiert werden kann. Das Trägersubstrat 1 wird anschließend abgezogen.An
Das Sicherheitselement zeigt einen Farbkippeffekt und eine versteckte magnetische Codierung.The security element shows a color shift effect and a hidden magnetic coding.
Alternativ kann anstelle der zweiten reflektierenden Schicht 5 eine schwarze, weiße oder farbige Druckschicht 6 vorgesehen sein.Alternatively, instead of the second
In
Das Sicherheitselement zeigt einen partiellen Farbkippeffekt, sowie eine versteckte magnetische Codierung.The security element shows a partial color shift effect as well as a hidden magnetic coding.
Gemäß einer nicht dargestellten Ausführungsform können auch die dielektrische Abstandsschicht 11 und/oder die Absorberschicht 12 partiell aufgebracht sein, vorzugsweise registergenau zur partiell aufgebrachten, reflektierenden Schicht 5.According to an embodiment that is not shown, the
In der in
In
Das Sicherheitselement zeigt einen partiellen Farbkippeffekt und zusätzlich eine diffraktiven Effekt, sowie eine versteckte magnetische Codierung.The security element shows a partial color shift effect and additionally a diffractive effect, as well as a hidden magnetic coding.
In
In der in
Über den magnetischen Bereichen ist eine Schutzschicht 8 aufgebracht auf der eine schwarze, reflektierende Schicht 5 oder eine partielle schwarze Druckschicht 6 aufgebracht ist. Diese Schicht 5 bzw 6 weist Aussparungen 7 auf, die in Form von Buchstaben, Zeichen, Mustern Symbolen, Linien und/oder dergleichen vorliegen können.A
Gegen diese Schichtaufbau wird eine auf einem zweiten Trägersubstrat bereitgestellte LC-Schicht 14 mittels eines Kaschierklebers kaschiert und das zweite Trägersubstrat anschließend abgezogen. Der Schichtaufbau kann anschließend mit einer Kleberschicht 13 versehen werden. Der Farbkippeffekt der LC-Schicht 14 ist nur in jenen Bereichen erkennbar, in denen die LC Schicht 14 über der schwarzen reflektierenden Schicht 5 oder der schwarzen Druckschicht 6 situiert ist.An
Das Sicherheitselement zeigt einen partiellen Farbkippeffekt und eine versteckte magnetische Codierung.The security element shows a partial color shift effect and a hidden magnetic coding.
In
Anstelle einer in den Ausführungsbeispielen dargestellten Schutzschicht 8 aus einem Lack kann auch eine dünne polymere Schutzfolie verwendet werden, die mittels eines Kaschierklebers mit dem Aufbau verbunden wird.Instead of a
Es versteht sich, dass die in den Ausführungsbeispielen angeführten Mischungsverhältnisse an niedrigkoerzitivem Material 3 und hochkoerzitivem Material 4 lediglich beispielhaft sind und in jedem Ausführungsbeispiel auch andere Mischungsverhältnisse innerhalb des erfindungsgemäßen Bereichs von 1 : 20 bis 20 : 1 verwendet werden können. Ebenso können auch die einzelnen Magnetbereiche 2 immer auch unterschiedliche Mischungsverhältnisse aufweisen.It goes without saying that the mixing ratios of low-
Die erfindungsgemäßen Sicherheitselemente sind gegebenenfalls nach entsprechender Konfektionierung in Form von Fäden, Streifen oder Patches zur zumindest teilweisen Einbettung in oder zur Applikation auf Datenträgern, insbesondere Wertdokumenten wie Ausweisen, Karten, Banknoten oder Etiketten, Siegeln und dergleichen geeignet. Ferner können die erfindungsgemäßen Sicherheitselemente in Form eines Streifens oder Patches auch zum Verschließen einer Durchbrechung in einem Datenträger verwendet werden.The security elements according to the invention are, if appropriate, suitable after appropriate packaging in the form of threads, strips or patches for at least partial embedding in or application on data carriers, in particular documents of value such as ID cards, cards, banknotes or labels, seals and the like. Furthermore, the security elements according to the invention can also be used in the form of a strip or patch to close an opening in a data carrier.
Claims (17)
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP19174396.2A EP3738785B1 (en) | 2019-05-14 | 2019-05-14 | Security element with machine readable features |
| PCT/EP2020/062621 WO2020229271A1 (en) | 2019-05-14 | 2020-05-06 | Security element with machine-readable features |
| US17/610,800 US11932044B2 (en) | 2019-05-14 | 2020-05-06 | Security element with machine-readable features |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP19174396.2A EP3738785B1 (en) | 2019-05-14 | 2019-05-14 | Security element with machine readable features |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP3738785A1 true EP3738785A1 (en) | 2020-11-18 |
| EP3738785B1 EP3738785B1 (en) | 2024-03-13 |
| EP3738785C0 EP3738785C0 (en) | 2024-03-13 |
Family
ID=66542130
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP19174396.2A Active EP3738785B1 (en) | 2019-05-14 | 2019-05-14 | Security element with machine readable features |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US11932044B2 (en) |
| EP (1) | EP3738785B1 (en) |
| WO (1) | WO2020229271A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102020006240A1 (en) | 2020-10-09 | 2022-04-14 | Giesecke+Devrient Currency Technology Gmbh | Security element with translucent part |
| EP4159463A1 (en) * | 2021-10-04 | 2023-04-05 | Hueck Folien Gesellschaft m.b.H. | Gravure printing cylinder for microprinting |
| WO2023233428A1 (en) * | 2022-06-02 | 2023-12-07 | Shilpan Patel | Novel encrypted security element for bank notes and method of manufacturing the same |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| MX2024001762A (en) * | 2021-08-11 | 2024-04-22 | Giesecke & Devrient Epayments Gmbh | PROCEDURE FOR THE PRODUCTION OF A SECURITY FEATURE, SECURITY FEATURE FOR A DATA MEDIA, DATA MEDIA AND LAMINATION SHEET. |
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| DE102011109949A1 (en) * | 2011-08-10 | 2013-02-14 | Giesecke & Devrient Gmbh | Test arrangement for value document testing |
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| CN105813835B (en) * | 2013-10-15 | 2018-04-17 | 贺利氏德国有限两合公司 | Security structure based on a polymer layer comprising a first region and a further region |
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2019
- 2019-05-14 EP EP19174396.2A patent/EP3738785B1/en active Active
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- 2020-05-06 WO PCT/EP2020/062621 patent/WO2020229271A1/en not_active Ceased
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| EP4159463A1 (en) * | 2021-10-04 | 2023-04-05 | Hueck Folien Gesellschaft m.b.H. | Gravure printing cylinder for microprinting |
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Also Published As
| Publication number | Publication date |
|---|---|
| WO2020229271A1 (en) | 2020-11-19 |
| EP3738785B1 (en) | 2024-03-13 |
| EP3738785C0 (en) | 2024-03-13 |
| US11932044B2 (en) | 2024-03-19 |
| US20220194117A1 (en) | 2022-06-23 |
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