EP3578380A1 - Élément de sécurité à caractéristique magnétique - Google Patents

Élément de sécurité à caractéristique magnétique Download PDF

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Publication number
EP3578380A1
EP3578380A1 EP19000274.1A EP19000274A EP3578380A1 EP 3578380 A1 EP3578380 A1 EP 3578380A1 EP 19000274 A EP19000274 A EP 19000274A EP 3578380 A1 EP3578380 A1 EP 3578380A1
Authority
EP
European Patent Office
Prior art keywords
motif
feature
magnetic
security element
layer
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.)
Granted
Application number
EP19000274.1A
Other languages
German (de)
English (en)
Other versions
EP3578380B1 (fr
Inventor
Peter Schiffmann
Christoph Mengel
Yana Kisselova-Weckerle
Matthias Pfeiffer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Giesecke and Devrient Currency Technology GmbH
Original Assignee
Giesecke and Devrient Currency Technology GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Giesecke and Devrient Currency Technology GmbH filed Critical Giesecke and Devrient Currency Technology GmbH
Priority to EP21020007.7A priority Critical patent/EP3835075A1/fr
Publication of EP3578380A1 publication Critical patent/EP3578380A1/fr
Application granted granted Critical
Publication of EP3578380B1 publication Critical patent/EP3578380B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/30—Identification or security features, e.g. for preventing forgery
    • B42D25/351—Translucent or partly translucent parts, e.g. windows
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/30—Identification or security features, e.g. for preventing forgery
    • B42D25/36—Identification or security features, e.g. for preventing forgery comprising special materials
    • B42D25/369—Magnetised or magnetisable materials
    • 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
    • B42D25/378—Special inks
    • B42D25/387—Special inks absorbing or reflecting ultraviolet light

Definitions

  • the invention relates to a security element with a magnetic feature that serves to secure security papers, documents of value and other data carriers.
  • the invention also relates to a method for producing such security elements, and to a data carrier equipped with such a security element.
  • Data carriers such as valuables or identity documents, but also other valuables, such as branded goods, are often provided with security elements for the purpose of security, which permit verification of the authenticity of the data carrier and at the same time serve as protection against unauthorized reproduction.
  • the security elements can be embodied, for example, in the form of a security thread embedded in a banknote, a covering film for a banknote with a hole, an applied security strip, a self-supporting transfer element or else in the form of a feature area printed directly on a value document.
  • Magnetically alignable effect pigments which are magnetically aligned in the form of a motif to be displayed, for example in the publication, have also been used for this purpose for some time WO 2009/033601 A1 described.
  • the object of the invention is to further increase the security against counterfeiting and the visual attractiveness of security elements with magnetically orientable magnetic pigments.
  • the blocking layer is advantageously designed to block the excitation of the luminescent layer and / or the emitted luminescence radiation of the excited luminescence layer.
  • the aforementioned superposition of luminescent layer and blocking layer relates to the excitation or viewing direction of the security element, so that the blocking layer blocks the excitation radiation for the luminescence layer or the luminescence radiation emitted by the luminescence layer.
  • the luminescent layer of the additional feature is advantageously recognizable even without excitation in the visible spectral range and then constitutes a part of the security element contributing to the visual impression even with normal illumination.
  • the luminescent layer can not be detected without excitation in the visible spectral range .
  • the luminescent layer can be, for example, transparent or of the same color as a background layer, in particular a white paper background.
  • the luminescent layer is formed to emit luminescence radiation of different color at different UV excitation wavelengths.
  • the luminescent layer can also be excitable only in a partial region of the UV spectral range.
  • the luminescent layer may also consist of several partial layers which have different visible colors, different excitation properties and / or different luminescence properties.
  • the partial layers can be arranged next to one another, one above the other or overlapping.
  • the luminescent layer may in each case be a fluorescent layer and / or a phosphorescent layer, at least in some areas.
  • the blocking layer is designed to block only excitation radiation from a partial region of the UV spectral range.
  • the blocking layer preferably blocks only shorter-wavelength excitation radiation, in particular only UV-C excitation radiation.
  • the invention also includes a data carrier having a security element of the type described.
  • the security element can be applied in particular to an opaque subregion of the data carrier, in particular directly printed, transferred via a transfer film or applied or incorporated together with a carrier film his.
  • the security element can also form an integral part of the data carrier itself.
  • the security element is applied at least partially over a transparent or translucent window region of the data carrier, wherein the magnetic feature and the additional feature overlap at least partially with the window region.
  • the color layer of the magnetic feature and the blocking layer of the additional feature are preferably produced with two printing units of the same printing machine, in particular with two screen printing units of the same screen printing machine.
  • the screen printing machine is also equipped with a magnetic module registered to the color layer of the magnetic feature, which provides the external magnetic field with which the magnetic pigments are aligned to form the desired modulation motif.
  • the invention also includes in this aspect a data carrier with a security element of the type described.
  • the security element may in particular form an integral part of the data carrier itself, wherein the at least partially translucent fiber-based substrate the substrate of the data carrier, such as the banknote paper of a banknote or the security paper of a Identification document represents.
  • the transparency can be generated in particular by printing a transparent substance on the fiber-based substrate.
  • the ink layer of the magnetic feature and the transparentizing substance are preferably produced with two printing units of the same printing press, in particular with two screen printing units of the same screen printing machine.
  • the screen printing machine is also equipped with a magnetic module registered to the color layer of the magnetic feature, which provides the external magnetic field with which the magnetic pigments are aligned to form the desired modulation motif.
  • cover layer is formed opaque. Further, the cover layer is advantageously not even visually recognizable, for example, because it has the same color as the surrounding background.
  • the cover of the print motif or the application can preferably be achieved with a matched transparent or translucent coating of the print motif or the application.
  • the aluminum layer of an applied hologram foil can be provided with a calibrated transparent or translucent coating in yellow color.
  • Such a modified hologram sheet appears golden in the area covered by the coating.
  • the cover of the print motif or the application can also be achieved by a customized, visually visible coloring of an applied film.
  • the invention also includes in this aspect a data carrier with a security element of the type described.
  • the security element may in particular be applied to an opaque subregion of the data carrier, in particular be printed directly, transferred via a transfer film or applied or incorporated together with a carrier film ,
  • the security element can also form an integral part of the data carrier itself.
  • the security element is at least partially applied over a transparent or translucent window region of the data carrier, wherein the magnetic feature and the additional feature overlap at least partially with the window region.
  • the color layer of the magnetic feature and the covering layer of the additional feature are preferably produced with two printing units of the same printing machine, in particular with two screen printing units of the same screen printing machine.
  • the screen printing machine is also equipped with a magnetic module registered to the color layer of the magnetic feature, which provides the external magnetic field with which the magnetic pigments are aligned to form the desired modulation motif.
  • the scattering ink layer may be opaque, but is preferably at least translucent and advantageously hardly or not appear in the supervisory view of the window area.
  • the scattering color layer acts in particular like a ground glass screen or a window pane covered with raindrops.
  • the color layer of the magnetic feature and the scattering ink layer of the additional feature are preferably produced with two printing units of the same printing machine, in particular with two screen printing units of the same screen printing machine.
  • the screen printing machine is also equipped with a magnetic module registered to the color layer of the magnetic feature, which provides the external magnetic field with which the magnetic pigments are aligned to form the desired modulation motif.
  • the additional feature of the first aspect rather than the combination of a luminescent layer with a blocking layer, by a polarizing coating which can be seen only when viewed by polarizing filters.
  • the polarizing coating can be formed for example by a liquid crystal coating.
  • the additional feature may also be formed by a stroke motif, a line, dot or frequency modulated raster that interprets the modulation of the modulation motif of the magnetic feature.
  • the said rasters can be in particular frequency or amplitude modulated grids.
  • the additional feature is advantageously present only outside the magnetic feature or is at least visually recognizable only outside the magnetic feature at the authenticity check.
  • the additional feature or partial layers of the additional feature may also overlap with the magnetic feature. It is essential only that the visual effect of the additional feature occurs only outside of the magnetic feature in appearance.
  • the additional feature forms an at least partially circumferential edge of the magnetic feature.
  • the additional feature can form an edge that completely surrounds the magnetic feature.
  • the additional feature can also be inside and form the magnetic feature a partially or completely circumferential edge for the additional feature.
  • the additional feature directly adjoins the magnetic feature, for example on an edge of the magnetic feature.
  • the outline motif and the modulation motif of the magnetic feature are correlated with one another.
  • the two motifs can represent related, complementary or mutually explanatory motif parts of an overall motif.
  • the named data carrier is advantageously a value document, such as a banknote, in particular a paper banknote, a polymer banknote or a film composite banknote, a share, a bond, a certificate, a coupon, a check, a certificate, a A tax stamp, a high-quality admission ticket or a trademark protection element, but also an identification card, such as a credit card, a bank card, a cash card, an authorization card, an identity card or a pass personalization page.
  • a value document such as a banknote, in particular a paper banknote, a polymer banknote or a film composite banknote, a share, a bond, a certificate, a coupon, a check, a certificate, a A tax stamp, a high-quality admission ticket or a trademark protection element, but also an identification card, such as a credit card, a bank card, a cash card, an authorization card, an identity card or a pass personalization page.
  • the registration of magnetic feature and additional feature can be, for example, with an aid in the form of an image sensor in a mobile inspection system, such as a camera, a smartphone with a camera or a tablet computer with camera, checked and evaluated.
  • a mobile inspection system such as a camera, a smartphone with a camera or a tablet computer with camera
  • the registration can also be detected and evaluated by a stationary testing device, such as a banknote processing device, by means of sensors.
  • FIG. 1 shows a schematic representation of a banknote 10 with a security element 12 according to the invention, which in Fig. 2 in supervision under UV illumination and in Fig. 3 is more accurate in cross section.
  • the security element 12 consists of two subregions 20, 30, which are printed on each other, printed on the banknote paper 14 of the banknote 10.
  • the first subregion represents a magnetic feature 20 in which a color layer 22 with magnetically orientable magnetic pigments has been printed on the banknote paper 14.
  • the magnetic pigments were aligned while the binder was still wet with an external magnetic field in the form of a desired motif and dried the binder of the ink, for example by UV exposure, to permanently fix the orientation of the magnetic pigments.
  • the magnetic feature 20 thus contains two separate motifs, namely on the one hand an outline motif 24, which is formed by the outline of the printed ink layer 22 and on the other hand a modulation motif 26, which is formed by the partially different orientation of the magnetic pigments in the interior of the ink layer 22.
  • the outline motif is formed by a simple rectangle and the modulation motif 26 by a stripe or bar motif.
  • the magnetic feature 20 is supplemented by an additional feature 30 which is adapted to the magnetic feature 20 and repeats the modulation motif 26 of the magnetic feature 20 with different visual effects, in this embodiment concretely with luminescent effects.
  • the color layer 22 of the magnetic feature 20 is printed on the banknote substrate 14.
  • the additional feature 30 is formed by a luminescent layer 32 and a UV-absorbing blocking layer 34 arranged above the luminescent layer 32.
  • Trapped without hatching blocking layer 34 is applied in the form of a strip or bar motif 36, which repeats the shape of the modulation motif 26 of the magnetic feature 20 and also registered to the magnetic feature 20 is applied so that the beam motif of the modulation motif 26 in the bar motif 36th of the additional feature.
  • the luminescent layer 32 itself need not have any special registration with the magnetic feature 20, since the motif registration is ensured by the registered application of the blocking layer 34.
  • the luminescent layer 32 and the blocking layer 34 are colorless or transparent in the visible spectral range, so that only the magnetic feature 20 of the security element 12 is visible in normal daylight conditions.
  • the luminescence layer 32 is excited by the UV excitation for luminescence in the visible spectral range, but only in the subregions 38 in which the UV excitation radiation is not absorbed by the blocking layer 34. Since the blocking layer 34 is applied in the form of a motif 36 repeating the modulation motif 26, the resulting luminescent image of the additional feature 30 shows the same strip motif as the magnetic feature 20. In this way, additional securing of the magnetic feature 20 is achieved Motifs 26, 36 is easily verifiable due to the immediate spatial proximity of the two subregions 20, 30.
  • the two screen printing units of a Nota Screen TM screen printing machine are used which have good registration with one another.
  • the first screen printing unit is used to produce the color layer 22 with the modulation motif 26, and the second screen printing unit to apply the blocking layer 34 for this purpose.
  • the first screen printing unit is equipped with a magnetic module registered to the ink layer 22 of the magnetic feature 20.
  • printing machines which in particular have at least one first printing unit for applying a magnetically alignable ink, for example gravure printing, flexographic printing and in particular screen printing, a magnetic module for aligning the magnetically orientable ink, a spontaneous drying device, preferably UV drying for Fixing the orientation of the pigments by means of an LED dryer for pinning, an end or intermediate dryer, as well as at least one further printing unit, which is preferably provided in front of the printing unit for printing the magnetically orientable ink, said printing unit is preferably coupled to a spontaneous drying device , Alternatively, this at least one printing unit can also be arranged downstream of the printing unit for printing the magnetically orientable ink.
  • a magnetically alignable ink for example gravure printing, flexographic printing and in particular screen printing
  • a magnetic module for aligning the magnetically orientable ink
  • a spontaneous drying device preferably UV drying for Fixing the orientation of the pigments by means of an LED dryer for pinning, an end or intermediate dryer
  • at least one further printing unit
  • the substrate to be printed may be a sheet-shaped substrate or a sheet substrate.
  • a single-cylinder principle with a common counter-pressure cylinder is particularly preferably used in web-like materials, since web tension fluctuations are not significant here.
  • printing machine constructions are preferably used which avoid substrate transfer by means of gripper systems in the area of the printing units.
  • FIG. 4 shows a further embodiment of a security element 40 according to the invention, wherein Fig. 4 (c) the complete security element 40 shows and 4 (a) and (b) Show sub-elements for a better understanding of the structure of the security element.
  • the security element 40 contains a magnetic feature 50 with a color layer 52 with magnetically alignable magnetic pigments.
  • the outline motif 54 of the magnetic feature 50 in this exemplary embodiment represents a six-pointed star, which is also provided with an internal value "50", while the modulation motif 56 formed by the different orientation of the magnetic pigments again represents a strip or bar motif.
  • Fig. 4 (b) shows the magnetic feature 50 together with the lying below the magnetic feature luminescent layer 62 of the additional feature 60.
  • Wie aus Fig. 4 (b) is clear, it is not necessary that the luminescent layer 62 has a registration to the magnetic feature 50.
  • Fig. 4 (c) finally shows the finished security element 40 with magnetic feature 50 and complete additional feature 60.
  • the additional feature 60 includes in addition to the luminescent layer 62, its position and outline in Fig. 4 (c) are indicated again by dashed lines, also a blocking layer 64 lying above the luminescent layer 62 and having the shape of a square with a star-shaped recess 66 and fitted to the contour 54 of the magnetic feature 50.
  • additional feature 60 as a whole shows a star motif 66 which repeats or completes the outline motif 54 of magnetic feature 50 in the form of a peripheral edge.
  • the luminescent layer 62 and the blocking layer 64 are also in the embodiment of Fig. 4 colorless or transparent in the visible spectral range, so that when viewed normally in daylight only the magnetic feature 50 of the security element 40 is visible. If UV radiation is applied to the security element 40, then the luminescence layer 62 is excited by the UV excitation in the regions not covered by the blocking layer 64, ie just inside the star-shaped recess 66, for luminescence in the visible spectral range.
  • the luminescent image of the additional feature 60 then points to the magnetic feature matched the same star motif, which is already shown by the outline of the magnetic feature 50.
  • the registration of the motifs 54, 66 is easily verifiable by the peripheral edge design of the two star motifs, since the human eye is very sensitive to possibly different edge widths along the circumference of the star motif 54.
  • Fig. 5 shows Fig. 5 (a) the appearance of the security element 70 in the visible light and Fig. 5 (b) the appearance when excited with UV light.
  • the security element 70 includes a magnetic feature 80 having a color layer 82 with magnetically alignable magnetic pigments.
  • the outline motif 84 of the magnetic feature 80 represents a ten-pointed star, and the modulation motif 86 formed by the different orientation of the magnetic pigments again represents a stripe motif.
  • the additional feature 90 of the security element 70 contains a two-color iriodin strip 92, whose partial strips 92-A, 92-B also show different luminescence colors on UV excitation. For example, sub-stripe 92-A appears red under normal illumination and has a yellow luminescent color while sub-stripe 92-B appears blue under normal illumination and has a green luminescent color.
  • the IriodinstMail 92 thus forms a luminescent layer, which is perceptible to the viewer even without excitation in the visible spectral range.
  • a blocking layer 94 of the additional feature 90 Arranged above the iriodin strip 92 is a blocking layer 94 of the additional feature 90, which, like the magnetic feature 80, is in the form of a ten-pointed star and is adapted to the outline 84 of the magnetic feature 80.
  • the blocking layer 94 is transparent in the visible spectral range and only appears on UV irradiation by its UV-absorbing effect.
  • the iriodin strip 92 with the partial strips 92-A, 92-B is applied on the substrate 72, above this the blocking layer 94 and finally the color layer 82. Since the star motif of the blocking layer 94 is slightly larger than the star motif 84 of the color layer 82 is formed, outside of the color layer 82 remains a registered, star-shaped edge 96 of the blocking layer 94th
  • the IriodinstMail 92 appears in the visible light two-color red / blue and the star-shaped magnetic feature 80 is with his Stripe pattern 86 over this two-color iriodin strip 92.
  • the iriodin strip 92 luminesces two-color yellow / green, but only in those areas which are not covered by the blocking layer 94.
  • the observer therefore sees under UV light the star motif 84 of the magnetic feature 80 with a calibrated, star-shaped and non-luminescent edge 96.
  • the registration of the motifs 84, 96 is easily verifiable since the human eye is very sensitive to possibly different edge widths along the edge Scope of the star motif 84 responds.
  • the blocking layer 94 is matched to the magnetic feature 80 so deposited that the edge of the ink layer 82 is at a constant distance from the outline 24 of the magnetic feature 80.
  • the resulting luminescent edge thus also has the star shape of the outline motif.
  • the blocking layer 94 is designed such that it blocks only excitation radiation from a subregion of the UV spectral range, for example blocks UV-C radiation (in particular at 254 nm), but transmits UV-A radiation (in particular at 365 nm) ,
  • the additional feature 90 is thereby more hidden, since its presence with the UV-A lamps simple bank note testers can not be made visible yet.
  • the described security elements can exist as a separate security element that is applied to a data medium to be protected, but they can also be part of the data carrier to be protected itself.
  • the security elements can be present in an opaque subregion of the data carrier, or be arranged wholly or partially in a transparent window region of the data carrier, for which purpose the magnetic feature 20 and the additional feature 30 can be present, for example, on a transparent carrier film 14.
  • the transparent window area may also consist of a transparent portion of a plastic film of the data carrier to be protected, to which the magnetic feature and the additional feature are applied directly.
  • the magnetic feature 20 is advantageously arranged at least partially within the window area, so that the outline motif 26 formed by the magnetic feature 20 is at least partially visible from one side of the data carrier and from the opposite side through the window area.
  • the additional feature 30 is then advantageously at least partially disposed within the transparent window area, so that the additional feature 30 is at least partially visible from one side of the data carrier and from the opposite side through the window area.
  • the blocking layer 34 is a visually unrecognizable UV-absorbing layer, wherein the registration of the additional feature 30 to the magnetic feature 20 on both sides of the data carrier in the window area shows when the disk is positioned with the window area in the test by means of UV light in each case on a luminescent substrate and the window itself is permeable at least for a portion of the UV light.
  • FIGS. 6 and 7 illustrate another aspect of the present invention and another way of concrete training of in Fig. 1 shown security elements 12. It shows Fig. 6 the security element 12 in cross section and Fig. 7 the visual appearance when viewed in a combination of incident light and transmitted light.
  • the security element 12 consists of two subregions 20, 100 that are matched to one another on the banknote paper 14 of the banknote 10.
  • the first subregion represents a magnetic feature 20 in which a color layer 22 with magnetically orientable magnetic pigments has been printed on the banknote paper 14.
  • the magnetic pigments were aligned while the binder was still wet with an external magnetic field in the form of a desired motif and dried the binder of the ink, for example by UV exposure, to permanently fix the orientation of the magnetic pigments.
  • the magnetic feature 20 thus contains two separate motifs, namely on the one hand an outline motif 24, which is formed by the outline of the printed ink layer 22 and on the other hand a modulation motif 26, which is formed by the partially different orientation of the magnetic pigments in the interior of the ink layer 22.
  • the outline motif is again formed by a simple rectangle and the modulation motif 26 by a strip or bar motif.
  • the magnetic feature 20 is supplemented by an additional feature 100 which is adapted to the magnetic feature 20 and repeats the modulation motif 26 of the magnetic feature 20 with different visual effects, in this embodiment concretely with a watermark generated by printing technology.
  • the color layer 22 of the magnetic feature 20 is printed on the banknote substrate 14.
  • the additional feature 100 is produced by a layer 102 of a transparent lacquer which is printed in regions, which locally increases the transmission of the translucent banknote paper 14.
  • the transparentizing layer 102 is applied in the form of a stripe or beam motif 106 which repeats the shape of the modulation motif 26 of the magnetic feature 20 and is also registered to the magnetic feature 20 in such a way that the beam motif of the modulation motif 26 merges with the beam motif 106 of FIG Additional feature continues.
  • Fig. 7 shown schematically.
  • the appearance shown there with a combination of reflected light and transmitted light illumination relates to a typical viewing situation in which a banknote 10 is held against a window or a bright light source, so that on the one hand the watermark of the additional feature 100 becomes visible, but on the other hand also sufficient reflected light is available for the detection of the magnetic feature 20.
  • the two screen printing units of a Nota Screen TM screen printing machine are used which have good registration with one another.
  • the first screen printing unit is used to produce the color layer 22 with the modulation motif 26, the second screen printing unit to apply the transparentizing layer 102 adapted thereto.
  • FIGS. 2 and 3 already explained, other printing machines with the properties mentioned there can be used advantageously.
  • FIGS. 8 and 9 illustrate a further aspect of the present invention and another way of concrete training of in Fig. 1 shown security elements 12. It shows Fig. 8 the security element 12 in cross section and Fig. 9 the visual appearance of the security element when viewed in supervision.
  • the security element 12 consists of two subregions 20, 110, which are matched to one another on the banknote paper 14 of the banknote 10.
  • the first subregion represents a magnetic feature 20 in which a color layer 22 with magnetically orientable magnetic pigments has been printed on the banknote paper 14.
  • the magnetic pigments were aligned while the binder was still wet with an external magnetic field in the form of a desired motif and dried the binder of the ink, for example by UV exposure, to permanently fix the orientation of the magnetic pigments.
  • the magnetic feature 20 thus contains two separate motifs, namely on the one hand an outline motif 24, which is formed by the outline of the printed ink layer 22 and on the other hand a modulation motif 26, the is formed by the partially different orientation of the magnetic pigments in the interior of the ink layer 22.
  • the outline motif is again formed by a simple rectangle and the modulation motif 26 by a strip or bar motif.
  • the magnetic feature 20 is supplemented by an additional feature 110 which is adapted to the magnetic feature 20 and repeats the modulation motif 26 of the magnetic feature 20 with different visual effects, in this embodiment concretely with a suitably masked print motif or a suitably masked application.
  • the color layer 22 of the magnetic feature 20 is printed on the banknote substrate 14.
  • the additional feature 110 is formed by a print motif 112 and an opaque cover layer 114 arranged above the print motif 112.
  • Drawn without hatching layer 114 is applied in the form of a strip or bar motif 116, which repeats the shape of the modulation motif 26 of the magnetic feature 20 and also registered to the magnetic feature 20 is applied so that the beam motif of the modulation motif 26 in the bar motif 116th of the additional feature continues as in Fig. 9 illustrated.
  • the print motif 112 itself need not have any special registration to the magnetic feature 20, since the motif registration is ensured by the registered application of the opaque cover layer 114.
  • the cover layer 114 is not visually recognizable in the exemplary embodiment itself, since it has, for example, the same color as the surrounding banknote paper 14.
  • the two screen printing units of a Nota Screen TM screen printing machine are used, which have good registration with one another.
  • the first screen printing unit is used to produce the color layer 22 with the modulation motif 26, the second screen printing unit to apply the cover layer 114 adapted thereto.
  • FIGS. 2 and 3 already explained, other printing machines with the properties mentioned there can be used advantageously.
  • a print motif 112 it is also possible, for example, for an applied application to be covered by a cover layer 114.
  • the covering of the print motif or the application takes place instead of through a cover layer 114 by means of a passivated, visually visible coloring of an applied film.
  • FIGS. 10 and 11 show special embodiments of security elements according to a further aspect of the invention, in which the security elements are partially disposed over a window portion 122 of a data carrier 120.
  • Fig. 10 Referred to in Figs. 10 (a) and 10 (b) in each case a plan view of the front 120-V and back 120-R of the data carrier 120, and in Fig. 10 (c) the appearance of the disk in the Transmitted light when viewed from the rear.
  • the security element 124 consists of two subregions 20, 130, which are matched to each other partially within and partially outside the window area 122 of the data carrier 120.
  • the first subregion represents a magnetic feature 20 in which a color layer 22 with magnetically orientable magnetic pigments has been printed either directly in the window region 122 of the data carrier or on a carrier film arranged in the window region.
  • the magnetic pigments were aligned while the binder was still wet with an external magnetic field in the form of a desired motif and dried the binder of the ink, for example by UV exposure to permanently fix the orientation of the magnetic pigments.
  • the magnetic feature 20 thus contains two separate motifs, namely on the one hand an outline motif 24, which is formed by the outline of the printed ink layer 22 and on the other hand a modulation motif 26, which is formed by the partially different orientation of the magnetic pigments in the interior of the ink layer 22.
  • the outline motif 24 is formed by a ten-pointed star and the modulation motif 26 by a stripe motif.
  • the magnetic feature 20 is supplemented by an additional feature 130 which is adapted to the magnetic feature 20 and repeats the outline motif 24 of the magnetic feature 20 with different visual effects, in this embodiment concretely substantially diffuse, in the window area 122.
  • Fig. 10 (a) For example, in the window area 122 of the data carrier 120, the color layer 22 of the magnetic feature 20 is printed to produce the security element 124.
  • the additional feature 130 is produced by a strongly scattering ink layer 132 which is applied in the window region 122 and whose edge 136 in FIG FIGS. 10 (a) and (b) indicated by dashed lines.
  • the strongly scattering ink layer 132 is applied in a form that repeats the star shape of the outline motif 24 of the magnetic feature 20 in the relevant window region 122 and is also registered to the magnetic feature 20 so that the edge 136 of the ink layer 132 is at a constant distance from the outline 24 of the magnetic feature 20 extends.
  • the magnetic feature 20 When monitoring the front 120-V of the disk 120 of the Fig. 10 (a) For example, the magnetic feature 20 is completely recognizable, while the strongly scattering color layer 132 of the additional feature 130 practically does not appear in the supervisory view. A similar picture emerges at the Fig. 10 (b) shown oversight of the rear side 120-R of the data carrier 120. The magnetic feature 20 is partially visible through the window portion 122 therethrough, while the additional feature 130 practically does not appear.
  • the magnetic feature 20 is partially visible through the window area 122, though typically with somewhat less color.
  • the scattering effect of the color layer 132 in the transmitted light produces the impression of a windowpane covered with raindrops in a part region registered to the magnetic feature 20.
  • the two screen printing units of a Nota Screen TM screen printing machine are used, which have good registration with one another.
  • the first screen printing unit is used to produce the color layer 22 with the outline motif 24, and the second screen printing unit to apply the highly scattering color layer 132 for this purpose.
  • the two color layers can be applied directly to the data carrier 120, or even to a transparent film, which is then arranged in the window region of the data carrier.
  • FIGS. 2 and 3 already explained other printing machines can be used with the properties mentioned there.
  • FIG. 11 shows in a view like Fig. 10 (c) a modification of the design of the Fig. 10 in which the strongly scattering ink layer 132 is applied in a mold 138 which repeats the stripe and beam motif 26 of the magnetic feature 20 in the relevant window region 122 and is also registered with the magnetic feature 20 in such a way that the beam motif of the modulation motif 26 moves into the mold Beam motif 138 of the additional feature 130 continues.

Landscapes

  • Credit Cards Or The Like (AREA)
  • Printing Methods (AREA)
  • Inspection Of Paper Currency And Valuable Securities (AREA)
EP19000274.1A 2018-06-05 2019-06-05 Élément de sécurité avec une caractéristique magnétique Active EP3578380B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP21020007.7A EP3835075A1 (fr) 2018-06-05 2019-06-05 Élément de sécurité à caractéristique magnétique

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102018004439.5A DE102018004439A1 (de) 2018-06-05 2018-06-05 Sicherheitselement mit Magnetmerkmal

Related Child Applications (2)

Application Number Title Priority Date Filing Date
EP21020007.7A Division-Into EP3835075A1 (fr) 2018-06-05 2019-06-05 Élément de sécurité à caractéristique magnétique
EP21020007.7A Division EP3835075A1 (fr) 2018-06-05 2019-06-05 Élément de sécurité à caractéristique magnétique

Publications (2)

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EP3578380A1 true EP3578380A1 (fr) 2019-12-11
EP3578380B1 EP3578380B1 (fr) 2021-02-24

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EP21020007.7A Pending EP3835075A1 (fr) 2018-06-05 2019-06-05 Élément de sécurité à caractéristique magnétique
EP19000274.1A Active EP3578380B1 (fr) 2018-06-05 2019-06-05 Élément de sécurité avec une caractéristique magnétique

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DE (1) DE102018004439A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3842254A1 (fr) * 2019-12-24 2021-06-30 Thales Dis France Sa Élément de sécurité luminescente personnalisable

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112329903B (zh) * 2020-11-09 2024-03-29 中钞特种防伪科技有限公司 磁性防伪元件、产品及其制作方法
CN112622418B (zh) * 2021-01-06 2023-05-02 黄其青 一种工业用板材商标印刷设备

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1669213A1 (fr) * 2004-12-09 2006-06-14 Sicpa Holding S.A. Elément de sécurité avec un aspect dépendent de l'angle d'observation
WO2009033601A1 (fr) 2007-09-11 2009-03-19 Giesecke & Devrient Gmbh Élément de sécurité optiquement variable

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1669213A1 (fr) * 2004-12-09 2006-06-14 Sicpa Holding S.A. Elément de sécurité avec un aspect dépendent de l'angle d'observation
WO2009033601A1 (fr) 2007-09-11 2009-03-19 Giesecke & Devrient Gmbh Élément de sécurité optiquement variable

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3842254A1 (fr) * 2019-12-24 2021-06-30 Thales Dis France Sa Élément de sécurité luminescente personnalisable
WO2021130035A1 (fr) * 2019-12-24 2021-07-01 Thales Dis France Sa Élément de sécurité luminescent personnalisable

Also Published As

Publication number Publication date
EP3578380B1 (fr) 2021-02-24
DE102018004439A1 (de) 2019-12-05
EP3835075A1 (fr) 2021-06-16

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