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EP3513984B1 - Élément de sécurité pourvu de zone luminescente à motif - Google Patents

Élément de sécurité pourvu de zone luminescente à motif Download PDF

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Publication number
EP3513984B1
EP3513984B1 EP19000016.6A EP19000016A EP3513984B1 EP 3513984 B1 EP3513984 B1 EP 3513984B1 EP 19000016 A EP19000016 A EP 19000016A EP 3513984 B1 EP3513984 B1 EP 3513984B1
Authority
EP
European Patent Office
Prior art keywords
motif
luminescence
region
security element
daylight
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.)
Active
Application number
EP19000016.6A
Other languages
German (de)
English (en)
Other versions
EP3513984A1 (fr
EP3513984B2 (fr
Inventor
Gianluca Messa
Matthias Pfeiffer
Andreas Holzmeister
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
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Application filed by Giesecke and Devrient Currency Technology GmbH filed Critical Giesecke and Devrient Currency Technology GmbH
Publication of EP3513984A1 publication Critical patent/EP3513984A1/fr
Publication of EP3513984B1 publication Critical patent/EP3513984B1/fr
Application granted granted Critical
Publication of EP3513984B2 publication Critical patent/EP3513984B2/fr
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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
    • B42D25/328—Diffraction gratings; Holograms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/30—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 luminescence motif area for protecting security papers, documents of value and other data carriers.
  • the invention also relates to a method for producing such a security element and to a data carrier equipped with such a security element.
  • Data carriers such as value or identity documents, but also other objects of value such as branded items, are often provided with security elements for protection that allow the authenticity of the data carrier to be checked and at the same time serve as protection against unauthorized reproduction.
  • luminescent substances to secure value documents or identity documents.
  • the presence of the luminescent substances can then be checked with the aid of a UV lamp, for example.
  • fluorescent mottled fibers which usually consist of short fibers provided with a fluorescent coating, can be introduced into a security paper.
  • the mottled fibers are invisible under normal lighting, but under UV lighting they are clearly visible due to their bright fluorescence, for example in red, green or blue, despite their small size.
  • the printing of true-color luminescence images is also known, particularly in the passport area.
  • the implementation usually takes place in ink-jet printing with special colors that are not visible in normal lighting and, when excited by UV light, show a color impression comparable to a classic picture, for example a portrait of the passport holder.
  • ink-jet fluorescent inks are now relatively easily available, especially through online trading, which enable a forger to produce forged impressions.
  • Printing ink manufacturers also sometimes offer fluorescent inks that are intended for technical gadgets or brand protection.
  • EP 1 880 864 A2 shows a security element according to the preamble of claim 1 which, in addition to an optically variable motif that is visible in daylight, comprises a motif that is luminescent in UV light.
  • the invention is based on the object of specifying a security element of the type mentioned at the outset with an attractive appearance and a high level of security against forgery.
  • UV light and daylight are used synonymously in this application for light from the visible wavelength range (approximately 380 nm to 780 nm).
  • UV light or UV excitation refers to light from the ultraviolet wavelength range from about 100 nm to 380 nm.
  • the aforementioned adaptation creates an interaction between the optically variable daylight motif area and the multicolored luminescence motif, which links two security features visible in different lighting situations with one another and therefore increases the safeguarding effect of the security element.
  • Said adaptation can in particular be realized in that the optically variable daylight motif area is adapted with one color in at least one of its appearances to the at least one multicolored luminescence motif.
  • An adaptation in the color means in particular that the hue of at least a sub-area of the daylight motif area matches the luminescence hue of a sub-area of the at least one multicolored luminescence motif.
  • the optically variable daylight motif area in at least one of its appearances and the at least one multicolored luminescence motif have at least two areas with the same color tone.
  • the same color gradient from the hue of the first area to the hue of the second area is present between the two mentioned areas with the same hue.
  • the luminescence motif area is advantageously a real color luminescence area which contains mixed colors of at least two, preferably three, luminescence basic colors.
  • the real color luminescence area contains mixed colors of luminescence green, luminescence red and luminescence blue.
  • the optically variable daylight motif area and the luminescence motif area are advantageously arranged adjacent to one another or at a distance from one another on the security element.
  • the sub-areas of the daylight motif area and the luminescence motif area that are adapted to one another can be arranged adjacent to one another, so that the adaptation, for example in color, is particularly noticeable and can be easily checked.
  • the optically variable daylight motif area and the luminescence motif area are arranged overlapping one another on the security element, the color of the daylight motif area and the luminescence motif area being matched to one another in the overlapping area.
  • the optically variable daylight motif area and the luminescence motif area particularly advantageously form motif parts that complement each other to form an overall motif.
  • the addition of the individual motif parts to an overall motif is very noticeable, especially with simultaneous illumination with daylight and UV light.
  • the aforementioned adaptation also provides an interaction between the two parts of the motif serves as a mark of authenticity in addition to supplementing an overall motif.
  • the optically variable daylight motif area preferably contains one or more elements selected from the group consisting of holograms, hologram-like diffraction structures, diffraction patterns, structures with color-shifting effects, cinema shapes, structures with a microlens effect, and micro-optical display arrangements, in particular moiré magnification arrangements and lenticular images.
  • the luminescence motif area can be optically non-variable, but in an advantageous development of the invention the luminescence motif area is also optically variable and therefore shows at least two different appearances after UV excitation from different excitation directions, or at least shows after UV excitation two different appearances from different perspectives. Furthermore, the luminescence motif area can also show different appearances when excited with different excitation wavelengths (for example 254 nm and 365 nm).
  • the optically variable daylight motif area is adapted in at least one of its appearances to at least one of the appearances of the luminescence motif area.
  • the daylight motif area can of course also advantageously be adapted to all appearances of the luminescence motif area.
  • An optically variable luminescence motif area is advantageously part of a micro-optical display arrangement, in particular a moiré magnification arrangement or a lenticular lens image.
  • the optically variable daylight motif area and / or the luminescence motif area contain an IR-absorbing substance, preferably in the form of patterns, characters or a code such as a barcode or QR code.
  • the security element is advantageously a security thread, in particular a window security thread or a pendulum security thread, a tear thread, a security tape, a security strip, a patch or a label to be applied to a security paper, document of value or the like.
  • the security element can advantageously show different appearances in daylight and in UV light from opposite sides.
  • different luminescence motif areas are provided on the opposite sides of the security element, which are at least partially separated from one another by a UV blocker.
  • the invention also contains a data carrier with a security element of the type described.
  • the security element can in particular be arranged in a window area of the data carrier, for example above an opening or a transparent or translucent part of the data carrier.
  • the security element can advantageously show different appearances from opposite sides.
  • the data carrier can in particular be a value document such as a bank note, in particular a paper bank note, a polymer bank note or a foil composite banknote, a share, a bond, a certificate, a voucher, a check, a high-quality admission ticket, but also an identification card, such as a credit card, bank card, cash card, authorization card, ID card or a passport personalization page .
  • a value document such as a bank note, in particular a paper bank note, a polymer bank note or a foil composite banknote, a share, a bond, a certificate, a voucher, a check, a high-quality admission ticket, but also an identification card, such as a credit card, bank card, cash card, authorization card, ID card or a passport personalization page .
  • the invention also includes a method according to claim 14.
  • FIG. 1 shows schematically a bank note 10 with a security element 12 according to the invention, the visual impression of which under different lighting and viewing conditions in FIG Figures 2 and 3 is shown in more detail.
  • Figure 2 shows the appearance of the security element 12 when illuminated with only one type of light, either light 20 in the visible wavelength range (also referred to as daylight in this description) or UV light 22
  • Fig. 2 (a) the appearance of the security element 12 in daylight 20 when viewed from an angle
  • Fig. 2 (b) the appearance in daylight when viewed vertically
  • Fig. 2 (c) the appearance of the security element 12 after UV excitation 22, which is essentially independent of the viewing direction.
  • Figure 3 shows the appearance of the security element 12 with simultaneous illumination with both types of light 20, 22, wherein Fig. 3 (a) the appearance when viewed from an angle and Fig. 3 (b) shows the appearance when viewed perpendicularly.
  • a security element 12 illustrates that contains two non-overlapping but mutually adjoining motif areas 14, 16, which in the exemplary embodiment are defined by the upper and lower arch half of the in FIG Fig. 1 Arched motif shown are formed.
  • the motif areas 14, 16 can, for example, also be arranged at a distance from one another.
  • the first motif area represents an optically variable daylight motif area 14 which shows two different appearances in visible light 20 (daylight) from different viewing directions.
  • the motif area 14 when viewed perpendicularly, appears with the color shade magenta (M), as in FIG Fig. 2 (b) shown, and when viewed from an angle with the color tone green (G), as in Fig. 2 (a) shown.
  • M color shade magenta
  • G color tone green
  • the second motif area represents a luminescence motif area 16, which cannot be seen with pure daylight illumination, and in the Figures 2 (a) and 2 (b) is therefore only shown with a dashed outline.
  • the luminescence motif area 16 shows a multicolored luminescence motif, with FIG Figures 2 and 3 for the sake of simplicity, only two color areas 16-1, 16-2 are shown in which the luminescent motif is luminescent with the luminescent colors magenta (M) and blue (B).
  • the luminescent color magenta is a mixed color that is generated by additive color mixing of luminescent red and luminescent blue.
  • the daylight motif area 14 is hardly or not at all recognizable and in the Fig. 2 (c) therefore only shown with a dashed outline.
  • the luminescence motif of the color areas 16-1, 16-2 does not change when the security element 12 is tilted; rather, it appears essentially with the same when viewed vertically and when viewed obliquely or when illuminated Fig. 2 (c) illustrated color impression.
  • the optically variable daylight motif area 14 is matched in its appearance when viewed vertically to the luminescence motif of the color areas 16-1, 16-2, namely shows the same color shade magenta (M) in the motif area 14 as the sub-area 16-1 of the luminescence motif.
  • M color shade magenta
  • the color match can be checked by alternately illuminating the security element 12 with daylight 20 and UV light 22, but can in particular also be queried by simultaneous illumination with daylight and UV light, as in FIG Fig. 3 illustrated.
  • the in Fig. 3 (a) oblique viewing of the daylight motif area 14 with the hue green (G) and the luminescence area 16 in the first color area 16-1 with the hue magenta (M) and in the second color area 16-2 with the hue blue (B).
  • the security element 12 is tilted into the in Fig. 3 (b)
  • the optically variable motif area 14 changes its appearance and then appears like the first color area 16-1 of the luminescence area with the hue magenta (M).
  • the color matching of the areas 14 and 16-1 is immediately apparent to a viewer and can therefore be easily checked.
  • the adjoining arrangement of the partial areas 14, 16 results in a visually easily recognizable and memorable completion of the partial motifs 14 and 16 to form an overall motif.
  • FIG. 4 shows in one to the Figures 2 and 3 Analogous representation of a further exemplary embodiment in which the two motif areas 14, 16 each contain two areas of the same color.
  • the optically variable daylight motif area 14 appears in visible light when viewed perpendicularly in a first color area 14-1 with the hue magenta (M) and in a second color area 14-2 with the hue blue (B).
  • M hue magenta
  • B hue blue
  • the second motif area 16 is as in the Figures 2 and 3 already described and shows a multicolored luminescence motif upon UV excitation 22 with a first color area 16-1 in the luminescent color magenta (M) and a second color area 16-2 in the luminescent color blue (B).
  • the luminescent motif of the color areas 16-1, 16-2 does not change when the security element 12 is tilted and appears essentially with the same when viewed vertically and obliquely or when illuminated Fig. 4 (c) illustrated color impression.
  • the optically variable daylight motif area 14 is adapted to the luminescence motif in its two appearances with at least one color area each.
  • both the color area 14-1 of the daylight motif area 14 and the color area 16-1 of the luminescence motif area 16 appear with the hue magenta (M)
  • both the color area 14-2 of the daylight motif area 14 and the color area 16-2 of the luminescence motif area 16 with the hue blue (B).
  • the mentioned color matches can be checked by alternating illumination with daylight 20 and UV light 22, with reference to FIG Fig. 5 but can also be checked by simultaneous illumination with daylight and UV light.
  • the in Fig. 5 (a) shown oblique viewing direction the color areas 14-2 and 16-1 simultaneously in the hue magenta (M).
  • the in Fig. 5 (b) The vertical view shown, on the one hand, the color areas 14-1 and 16-1 appear simultaneously in the hue of magenta (M) and, on the other hand, the color areas 14-2 and 16-2 appear simultaneously in the hue of blue (B).
  • FIG. 6 and 7th illustrate the use of the basic principle described in a more complex security element, namely a wide security strip 30 for application to a bank note 32, as in the daylight view of FIG Fig. 6 illustrated.
  • the security strip 30 is in Fig. 7 shown in more detail, being there Fig. 7 (a) the appearance of the security strip 30 only in daylight 20, Fig. 7 (b) the appearance of the security strip 30 only in UV light 22 and Fig. 7 (c) shows the appearance of the security strip 30 when illuminated with both types of light 20, 22.
  • FIG. 7 (d) illustrates the appearance of an optional development of the security strip 30 in the IR light 24.
  • the security strip 30 contains an optically variable daylight motif area 40 consisting of several sub-areas 42, 44, the sub-areas 42, 44 each having a hologram 46 contained, which shows a color gradient from a light blue color area 46-1 to a dark blue color area 46-2 when viewed vertically.
  • the color gradient is illustrated in the figures by a four-step gradient, but in practice it can of course contain more steps or even be continuous.
  • the security strip 30 further contains a luminescence motif area 50 which, after UV excitation 22, shows a multicolored luminescence motif, which likewise consists of several subareas 52, 54, 56.
  • the partial areas represent a true color portrait 52 against the background of a blue sky 54 and a sequence of letters 56.
  • the sky background 54 shows a color gradient in UV light 22 from a light blue color area 54-1 to a dark blue color area 54-2, wherein the color tones of the color gradient and the color end points 54-1, 54-2 correspond to the color shades of the color gradients and the color end points 46-1, 46-2 in the holograms 46 of the daylight subject area 40.
  • the color match between the color gradient in the holograms 46 and the color gradient in the luminescent sky background 54 can now be checked when viewed perpendicularly by alternating illumination with daylight 20 and UV light 22; it can be checked with reference to FIG Fig. 7 (c) however, they can also be checked by simultaneously illuminating the security strip 30 with daylight and UV light.
  • the security features described in the visible and UV spectral range can be supplemented by further authenticity features.
  • the subareas 40, 50 may additionally contain an IR-absorbing substance 62 which is embodied in a subarea in the form of a code, for example a QR code 60.
  • a code for example a QR code 60.
  • the change in the visual appearance of the security element when changing from daylight viewing to viewing with UV excitation can be combined with an optically variable luminescence motif.
  • an optically variable luminescence motif can be obtained analogously to conventional lens tilt images in that a regular arrangement of parallel cylinder lenses 70 is arranged at a distance from a luminescence motif area 72, which is divided alternately into a plurality of parallel luminescent strips 74A, 74B.
  • the strips 74A, 74B and the cylindrical lenses 70 are matched to one another in such a way that, after UV excitation from a first viewing direction, only the strips 74A from a second viewing direction only the strips 74B are visible and together each produce a desired luminescence image.
  • Figure 9 illustrates in (a) to (c) by way of example some possible visual appearances of such an optically variable luminescence motif when changing the viewing direction (arrow 90).
  • the illustrated luminescence region 80 appears in a first color, for example red (R), when excited from a first viewing direction, while it appears in a second color, for example yellow (Y), from a second viewing direction.
  • R red
  • Y yellow
  • the luminescence area represents a two-color pattern of two parallel strips 82, 84, the luminescence colors of which exchange with one another when the viewing direction changes 90. From a first viewing direction the strips 82, 84 show the color sequence red-yellow (left part of the image), for example after UV excitation, while from a second viewing direction they show the color sequence yellow-red (right part of the image).
  • an additional motif 88 appears or disappears in the luminescence area 86 when tilting 90.
  • the luminescence area 86 appears uniformly red (R) from a first viewing direction after UV excitation, while from a second viewing direction additional coat of arms motifs 88 in yellow (Y) against the red background are visible.
  • Grid elements can be formed in particular from opaque or transparent UV blockers.
  • optically variable luminescence motifs Another possibility of generating optically variable luminescence motifs consists in the use of moiré magnification arrangements, as they are in principle, for example, in the publications WO 2009/00528 A1 and WO 2006/087138 A1 are described.
  • luminescent microimages of the same or different colors are used. In daylight, the microimages can either be invisible, for example transparent or have the same body color as the background, or they can be visible and have the same or different colors.
  • Figure 10 shows, by way of example, different motif images 100 of such moiré magnification arrangements as can be provided, for example, in a security thread as part of a security element described above.
  • the regularly arranged microimages are each designed in the form of a star for illustration purposes, but in practice they can have any other shape.
  • the appearance of the motif images in daylight 20 is shown, in the right half of the image the appearance in UV light 22 is shown.
  • the microimages 102 are initially designed so that they all have the same color shade 104-F in daylight 20, while the microimages 102 in UV light 22 glow in different luminescent colors 106-A, 106-B, 106-C, 106-D.
  • the moiré effect results in a dynamic movement effect when the security element is tilted, the moving, moiré-magnified stars in daylight 20 appear monochrome, in the UV light 22, on the other hand, glow with the different luminescent colors 106-A to 106-D.
  • the microimages 102 are transparent in visible light 20 and their position is therefore only shown in dashed lines in the figure, while they glow in different luminescent colors 106-A, 106-B, 106-C, 106-D in UV light 22.
  • the motif image 100 thus does not generate a recognizable image and no movement effect, while in UV light 22 when the security element is tilted, a dynamic movement effect with moving moiré-magnified stars, glowing in the luminescent colors 106-A to 106-D, is visible becomes.
  • the microimages 102 are designed such that they all have the same color shade 104-F in daylight 20, and also all shine in the same color shade 106-G in UV light 22.
  • the common daylight hue 104-F and the common luminescence color 106-G can be the same or different.
  • the moiré effect results in both daylight 20 and UV light 22 in each case a single-colored dynamic movement effect when the security element is tilted.
  • FIG. 3 shows a design in which the microimages 102 are designed in such a way that they all have the same hue 106-G in UV light 22, while in daylight 20 they are in different colors 104-A, 104-B, 104-C, 104 -D appear.
  • the moiré effect results in a dynamic movement effect both in daylight 20 and in UV light 22 when the security element is tilted, with the moving, moiré-magnified stars glowing in one color in UV light 22, while in daylight 20 they have different colors 104 -A to 104-D appear.

Landscapes

  • Credit Cards Or The Like (AREA)
  • Inspection Of Paper Currency And Valuable Securities (AREA)

Claims (14)

  1. Élément de sécurité (12) destiné à la sécurisation de papiers de sécurité, documents de valeur et autres supports de données (10), comprenant
    - une zone de motif optiquement variable de lumière du jour (14) qui, à la lumière visible (20), montre à partir de directions d'observation différentes au moins deux images d'apparence différentes (14G, 14M), et
    - une zone de motif luminescente (14) qui, après excitation UV, montre au moins un motif luminescent (16-1, 16-2),
    caractérisé en ce que
    le motif luminescent est un motif luminescent multicolore, et que la zone de motif optiquement variable de lumière du jour est, dans au moins une de ses images d'apparence, adapté au au moins un motif luminescent multicolore, à savoir comporte au moins une zone de la même teinte ou du même dégradé de couleur qu'une zone du motif luminescent multicolore.
  2. Élément de sécurité selon la revendication 1, caractérisé en ce que la zone de la zone de motif optiquement variable de lumière du jour coïncide, par sa teinte dans la au moins une des images d'apparence, avec la teinte de luminescence de la zone du motif luminescent multicolore.
  3. Élément de sécurité selon la revendication 1 ou 2, caractérisé en ce que la zone de motif optiquement variable de lumière du jour, dans la au moins une de ses images d'apparence, et le au moins un motif luminescent multicolore comportent au moins deux zones ayant la même teinte, de préférence que, entre les deux zones précitées ayant la même teinte, il y a respectivement le même dégradé de la teinte de la première zone à la teinte de la deuxième zone.
  4. Élément de sécurité selon au moins une des revendications de 1 à 3, caractérisé en ce que la zone de motif luminescente est une zone de couleur réelle qui comporte des couleurs mélangées à partir d'au moins deux, de préférence trois couleurs luminescentes, en particulier des couleurs mélangées à partir de vert luminescent, rouge luminescent et bleu luminescent.
  5. Élément de sécurité selon au moins une des revendications de 1 à 4, caractérisé en ce que la zone de motif optiquement variable de lumière du jour et la zone de motif luminescente sont agencées de manière adjacente l'une à l'autre ou espacées sur l'élément de sécurité.
  6. Élément de sécurité selon au moins une des revendications de 1 à 4, caractérisé en ce que la zone de motif optiquement variable de lumière du jour et la zone de motif luminescente sont agencées sur l'élément de sécurité de manière se chevauchant entre elles, et que la zone de motif de lumière du jour et la zone de motif luminescente sont, dans la zone de chevauchement, adaptées l'une à l'autre quant à leur couleur.
  7. Élément de sécurité selon au moins une des revendications de 1 à 6, caractérisé en ce que la zone de motif optiquement variable de lumière du jour et la zone de motif luminescente constituent des parties de motif complémentaires l'une à l'autre de manière à former un motif complet.
  8. Élément de sécurité selon au moins une des revendications de 1 à 7, caractérisé en ce que la zone de motif optiquement variable de lumière du jour contient un ou plusieurs éléments choisis dans le groupe consistant en hologrammes, structures de diffraction s'apparentant à des hologrammes, modèles de diffraction, structures à effet de changement des couleurs par basculement, kinoformes, structures ayant un effet de microlentilles, agencements micro-optiques de représentation, en particulier agencements de grossissement par effet de Moiré et images à trame lenticulaire.
  9. Élément de sécurité selon au moins une des revendications de 1 à 8, caractérisé en ce que la zone de motif luminescente est réalisée sous forme optiquement variable et montre, après excitation UV à partir de directions d'excitation différentes, au moins deux images d'apparence différentes, ou montre, après excitation UV, au moins deux images d'apparence différentes à partir de directions d' observation différentes.
  10. Élément de sécurité selon la revendication 9, caractérisé en ce que la zone de motif luminescente réalisée sous forme optiquement variable fait partie d'un agencement micro-optique de représentation, en particulier d'un agencement de grossissement par effet de Moiré ou d'une images à trame lenticulaire.
  11. Élément de sécurité selon au moins une des revendications de 1 à 10, caractérisé en ce que la zone de motif optiquement variable de lumière du jour et/ou la zone de motif luminescente contiennent une substance absorbant le rayonnement infrarouge, de préférence sous forme de motifs, caractères ou d'une codification, tels qu'un code-barre ou un code QR.
  12. Élément de sécurité selon au moins une des revendications de 1 à 11, caractérisé en ce que l'élément de sécurité est un fil de sécurité, en particulier un fil de sécurité à fenêtre ou un fil de sécurité pendulaire, une bande de sécurité ou un ruban de sécurité.
  13. Support de données doté d'un élément de sécurité selon au moins une des revendications de 1 à 12.
  14. Procédé de fabrication d'un élément de sécurité selon une des revendications de 1 à 12, dans lequel
    - sur un support, une zone de motif optiquement variable de lumière du jour est générée, laquelle, à la lumière visible, montre à partir de directions d'observation différentes au moins deux images d'apparence différentes, et
    - sur le support, une zone de motif luminescente est générée, laquelle, après excitation UV, montre au moins un motif luminescent multicolore, cependant que
    - la zone de motif optiquement variable de lumière du jour est, dans au moins une de ses images d'apparence, adaptée au au moins un motif luminescent multicolore, ce qui a lieu en ce qu'au moins une zone dans l'image d'apparence présente la même teinte ou le même dégradé de couleur qu'une zone du motif luminescent multicolore.
EP19000016.6A 2018-01-17 2019-01-10 Élément de sécurité pourvu de zone luminescente à motif Active EP3513984B2 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102018000343.5A DE102018000343A1 (de) 2018-01-17 2018-01-17 Sicherheitselement mit Lumineszenz-Motivbereich

Publications (3)

Publication Number Publication Date
EP3513984A1 EP3513984A1 (fr) 2019-07-24
EP3513984B1 true EP3513984B1 (fr) 2020-09-09
EP3513984B2 EP3513984B2 (fr) 2024-03-20

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EP19000016.6A Active EP3513984B2 (fr) 2018-01-17 2019-01-10 Élément de sécurité pourvu de zone luminescente à motif

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DE (1) DE102018000343A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT521847A1 (de) 2018-11-09 2020-05-15 Hueck Folien Gmbh Verfahren zur Herstellung eines Sicherheitsmerkmals
DE102019008116A1 (de) 2019-11-21 2021-05-27 Giesecke+Devrient Currency Technology Gmbh Lumineszenzelement mit Lumineszenzmotivbereich
CN111178478B (zh) * 2020-01-21 2024-11-01 熊建民 防冷、热撕标签及防伪方法以及标签的制作方法
DE102021002764A1 (de) 2021-05-27 2022-12-01 Giesecke+Devrient Currency Technology Gmbh Verfahren zur Herstellung einer lumineszenten Druckfarbe
DE102022000101A1 (de) * 2022-01-12 2023-07-13 Giesecke+Devrient Currency Technology Gmbh Optisch variables Sicherheitselement
DE102023126444A1 (de) * 2023-09-28 2025-04-03 Giesecke+Devrient Currency Technology Gmbh Sicherheitselement mit lumineszierendem Sicherheitsmerkmal

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