EP2920004B1 - Élément de sécurité pour un document de valeur et/ou de sécurité - Google Patents

Élément de sécurité pour un document de valeur et/ou de sécurité Download PDF

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Publication number
EP2920004B1
EP2920004B1 EP13798963.8A EP13798963A EP2920004B1 EP 2920004 B1 EP2920004 B1 EP 2920004B1 EP 13798963 A EP13798963 A EP 13798963A EP 2920004 B1 EP2920004 B1 EP 2920004B1
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EP
European Patent Office
Prior art keywords
optical structure
security element
security
coating
color
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
EP13798963.8A
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German (de)
English (en)
Other versions
EP2920004A1 (fr
Inventor
Roland Gutmann
Alexander MOMBRÉE
Michael Knebel
Christian Kunath
Jens Ehreke
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.)
Bundesdruckerei GmbH
Original Assignee
Bundesdruckerei 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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Priority to PL13798963T priority Critical patent/PL2920004T3/pl
Publication of EP2920004A1 publication Critical patent/EP2920004A1/fr
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Publication of EP2920004B1 publication Critical patent/EP2920004B1/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
    • B42D25/36—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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/20—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof characterised by a particular use or purpose
    • B42D25/29—Securities; Bank notes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/30—Identification or security features, e.g. for preventing forgery
    • B42D25/342—Moiré effects
    • 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
    • B42D25/378—Special inks

Definitions

  • the invention relates to a security element for a value and / or security document, which is applied to a transparent layer, e.g. a film, wherein the security element has a first periodic optical structure on the first side of the transparent layer and a second periodic optical structure on the second side opposite the first side of the transparent layer.
  • the invention further relates to a value and / or security document with such a security element.
  • a transparent layer e.g. to provide a foil.
  • a transparent film may include, for example, a protective layer or a see-through element as a security element.
  • Security elements which represent high-quality copy protection elements, either require expensive production or production processes, such as, for example, the hologram, special and often expensive special pigments or other production-related aids for producing and displaying variable information or effects.
  • copy protection elements are known which have a so-called tilt effect when viewed from different angles.
  • these elements produce interference effects, also known as moire patterns.
  • moire patterns also known as moire patterns.
  • the pamphlets WO 97/47478 A1 and EP 0 967 091 A1 describe safety elements that show a color or brightness variation of an image in transmitted light.
  • a security element for copy protection in which on a substantially transparent substrate on a first side a halftone line structure having a first frequency is applied and on the second side a marking substance.
  • the marker has two distinct regions, the first region including a second halftone line structure at a second frequency and the second region including a third halftone line structure at a third frequency.
  • the halftone line structures form a (partial) coating of the substrate.
  • the object of the present invention is therefore to provide a security element which makes a copy protection element inexpensive and easy to manufacture, which also has a higher security against counterfeiting.
  • the object is to be able to equip this simple and cost-effective with such a security element.
  • the security element has a first periodic, optical structure, for example a line grid or a dot matrix, which has a first coating formed on the first side of the transparent layer, and a second periodic optical structure, such as a line grid or a dot pattern, which forms a second coating on the first side of the transparent layer opposite second side, wherein the first optical structure and the second optical Structure are arranged overlapping so that they show a color change effect for an external observer under a certain predetermined angle to the surface of the provided with the coatings transparent layer or illumination angle of the used for verification, in particular a UV lamp, the first coating first color and the second coating at least a second color, which is different from the first color has.
  • a first periodic, optical structure for example a line grid or a dot matrix
  • a second periodic optical structure such as a line grid or a dot pattern
  • the security element according to the invention thus advantageously provides a color change effect which can be realized inexpensively and simply by the use of printing technology alone. A surface structuring is not necessary.
  • the solution according to the invention makes use of the development of the technique to the extent that it is possible today to realize a high register-accurate printing on different sides of a layer, for example different sides of the film, by means of a suitable turning device. Due to the two-sided printing of the optical structures with different, visible to the viewer, suitable colors (first color, second color) is carried out by tilting the security element, an increasing overlay of the colors or an increasing separation of the colors arranged on both sides of the transparent layer are. As a result, a viewing angle or illumination angle-dependent, adjustable color tone change (color change effect) is achieved.
  • the security element according to the invention is characterized by a high security against counterfeiting due to the high requirements with regard to the registration accuracy of the structures and is particularly suitable for increasing the security against counterfeiting for ID1 / ID3 plastic cards with multilayer construction.
  • the inventive Security element especially a high security against counterfeiting, if the color of the first coating and the color of the second coating are difficult to separate. Furthermore, the spatial separation of the colors of the first coating and the second coating achieves a visible color change, which has a 3D effect (tilting effect) due to the structure of the security element. When copying or scanning, this tilting effect disappears because the layers of the first and second coatings are collapsed.
  • color in the context of the present invention refers to the individual visual perception (body color) of the security element which is caused by reflection, absorption and / or emission of electromagnetic radiation on and / or in the security element and by a viewer when looking at the security element is perceived from a certain angle.
  • the color and, correspondingly, the color changes of the optical structures can e.g. in the RGB, CMYK or HSV color space or in the CIELAB color space for body colors or in the CIE xy color space for self-luminous colors.
  • the visible to the viewer color results from a combination of additive and / or subtractive color mixing of the color of the first coating and the color of the second coating, when the facing the viewer coating is transparent.
  • additive color mixing results, in particular, for electromagnetic radiation of a specific wavelength range emitted by the first coating and / or the second coating, and also plays a role for the structural elements of the first optical structure and the second optical structure that lie next to one another at the respective viewing angle .
  • the subtractive color mixture occurs in all classic colors (absorption colors) and is particular Of importance for the structural elements, each with an absorption color, which are superimposed at the respective viewing angle.
  • the coating facing the viewer is substantially non-transparent, in particular not for UV light and / or visible light.
  • a color-changing effect may arise, at least from a certain, predetermined point of view, as a result of the optical structure of the coating facing away from the viewer at least partially disappearing under the optical structure of the coating facing the viewer and thus not on the additive and / or subtractive color mixing.
  • the color impression offered to the external observer is therefore determined substantially or completely by the optical structure of the coating facing the observer.
  • lateral illumination by means of a UV light source can stimulate the coating remote from the viewer to luminesce, which luminescence is then perceived by the viewer.
  • the layer With regard to the transparency of the transparent layer arranged between the first optical structure and the second optical structure, it is necessary for the layer to be transparent above all for at least a partial region of the visible wavelength range (380 nm to 780 nm) or the UV wavelength range. If a coloring agent (eg a pigment) is used for the first optical structure and / or the second optical structure, which is excited in a wavelength range arranged outside the visible wavelength range, then it is necessary for the transparent layer additionally to be used for this excitation Wavelength range, which is preferably in the IR wavelength range or in the UV wavelength range, is additionally transparent.
  • a coloring agent eg a pigment
  • the transparent layer may be composed of two or more films or other layers.
  • the films or other layers which carry the first optical structure and the second optical structure may need to be assembled with high register accuracy during the production of the security element.
  • the color change effect achieved is particularly clear to the observer if the first optical structure and the second optical structure are arranged relative to one another such that the elements of the first optical structure, for example, the lines of the first optical structure, are located below a specific, predetermined viewing angle range or illumination angle range Elements of the second optical structure, for example, completely cover the lines of the second optical structure.
  • This means that in this viewing angle range if the coating facing the viewer is transparent, the viewer will subtractively and almost completely absorb the subtle and / or additive color mixture of the colors of the two structures or, if closer to the viewer, completely or nearly completely absorb the light used for viewing, only perceives black elements of the first optical structure, while the second structure is no longer or only partially visible.
  • the object according to the invention is in particular achieved by a security element which is coated on a layer which is transparent in the visible and UV wavelength ranges, e.g. a film, wherein the security element has a first periodic optical structure in the form of a line grid or a dot pattern, which forms a first coating on the first side of the transparent layer, and a second periodic optical structure in the form of a line grid or a dot matrix which forms a second coating on the second side opposite the first side of the transparent layer, wherein the first optical structure and the second optical structure are overlapped such that they are for an external observer at a certain, predetermined viewing angle and under UV Irradiation show a color change effect, wherein the first coating comprises a first color, which is not transparent to UV light and includes pigments that have a visible colorful or achromatic body color, and the second coating at least a second color, which of the first color ve different and contains luminescent pigments, wherein the first optical structure and the second optical structure are arranged to each other such that the
  • the thickness of the transparent layer in a preferred embodiment in the range of 50 microns to 800 microns, preferably in the range from 70 microns to 250 microns, more preferably in the range of 100 microns to 150 microns. Since the tilting of the security element necessary for the color change effect depends on the film thickness and the spacing of the structural elements, eg the lines or the dots, the first optical structure and / or the second optical structure, this layer thickness is particularly well suited for the desired color change effect together with the usual line spacing of a line grid or dot matrix.
  • the color change effect can be seen particularly clearly for the observers if the first optical structure and the second optical structure are each designed as a line grid and if these line grids run parallel to one another at least in sections.
  • the distance between two adjacent structural elements e.g. between two lines or two points, the first optical structure and / or the second optical structure 0.1 to 100 times the thickness of the transparent layer, preferably 0.5 to 10 times the thickness of the transparent layer , particularly preferably 0.5 times to 3 times the thickness of the transparent layer.
  • the width of the structural elements for example the width of the lines or the dots, of the first optical structure and / or second optical structure is 0.1 times to 100 times the thickness of the transparent layer, preferably the 0.5 times to 10 times the thickness of the transparent layer.
  • the width of the structural elements in a 100 micron thick film as a transparent layer can be about 100 microns to 200 microns.
  • the color difference of the first and / or the at least one second color between the state before and after the color change have a predetermined, sufficient value, preferably a value of ⁇ E> 10.
  • the most suitable are complementary colors. If the colors are too similar, a color change (dE> 10) can not be detected.
  • the first color and the at least one second color may be formed as metameric colors, ie achieve the same color impression before and / or after tilting.
  • the difference in color can only be recognized by arranging a filter between the security element and the observer, wherein the filter absorbs a predetermined wavelength range of the light and thus makes the color-changing effect visible.
  • the first optical structure and / or the second optical structure in their entirety contain visual and / or textual and / or numerical information.
  • the information represents a personalization.
  • Personalization is defined as pictorial and / or textual and / or numerical information that is unique or individual, e.g. for the holder of the value and / or security document having the security element or for the value and / or security document itself.
  • Such a personalization may be, for example, a serial number e.g. a banknote, the image or personal data and the like of the document holder, e.g. of the passport holder, or a ticket number.
  • the first optical structure and / or the second optical structure by means of a printing process, for example by means of flat, high, low, solid and / or digital printing, preferably by intaglio printing, by means of an offset printing method or by means of an inkjet Printing process, applied.
  • a printing process for example by means of flat, high, low, solid and / or digital printing, preferably by intaglio printing, by means of an offset printing method or by means of an inkjet Printing process, applied.
  • the process of inkjet printing is advantageous for applying a personalization that changes for each security element.
  • one of the first optical structure or the second optical structure is designed, for example, as a fixed line grid.
  • the respective other optical structure is then calculated in such a way and according to e.g. also printed as a line grid, that of the at least two pieces of information represented at different tilt angles, information includes personalization, such as the document owner's picture.
  • the first coating additionally comprises luminescent pigments, which preferably emit electromagnetic radiation having a wavelength which is different from the wavelength of the luminescent pigments of the second coating.
  • luminescent pigments which preferably emit electromagnetic radiation having a wavelength which is different from the wavelength of the luminescent pigments of the second coating.
  • luminescent pigments in particular fluorescent pigments
  • host lattices doped with rare earth metals for example ytterbium, praseodymium, neodymium, europium, terbium, cerium, dysprosium, holmium, thulium, samarium-doped garnets, perovskites, oxides, sulfides, oxysulfides, phosphates, silicates , Fluorides, nitrides or selenides used, possibly with traces of heavy metals such as silver, copper, manganese.
  • rare earth metals for example ytterbium, praseodymium, neodymium, europium, terbium, cerium, dysprosium, holmium, thulium, samarium-doped garnets, perovskites, oxides, sulfides, oxysulfides, phosphates, silicates , Fluor
  • organic luminescent materials may be used, for example, rhodamines, perylene dyes, isoindolinones, quinophthalones, oxazinones, coumarins, perinone dyes.
  • rhodamines perylene dyes
  • isoindolinones quinophthalones
  • oxazinones coumarins
  • perinone dyes The preparation of such luminescent materials is known to the person skilled in the art and described, for example, in the document WO 81/03508 A1 ,
  • luminescent pigments are, for example, LUMILUX CD 740 and LUMILUX Green CD 702 from Honeywell, Paliosecure Yellow from BASF and Cartax from Clariant.
  • Other luminescent materials can also be added to the " Phosphor Handbook ", 2nd Edition, ISBN-13 978-0849335648 or the book " Optical Document Security, 3rd Edition, ISBN-13 978-1580532587 be removed.
  • the security element can be realized in a particularly simple manner if it is arranged in a window of the security and / or security document.
  • Fig. 1 shows a transparent to visible light film 1 with a first line grid 10 as a first optical structure on the top and a second line grid 20 as a second optical structure on the underside of the film 1.
  • the film 1 consists for example of PC, PET, PETG, PVC, PE, PA and has a thickness d in the range of 50 microns to 300 microns. If the film 1 consists of PC, this preferably has a thickness in the range of 100 .mu.m to 150 .mu.m.
  • the first line grid 10 and the second line grid 20 are in Fig. 1 to 7 simplified represented by a single line or two or three lines, which are each shown perpendicular to the direction from the side.
  • the relevant optical structure in each case has a line grid, ie a multiplicity of parallel lines.
  • the embodiments shown can alternatively be realized as a dot matrix. In other embodiments, as periodic optical structures, grids of squares, triangles, hexagons, rectangles, and / or similar geometric shapes may be used.
  • the lines of the first line grid 10 and the second line grid 20 are arranged so that they are not just above each other when viewed vertically. This means that the space between adjacent lines of the first line screen 10 is at least as large or larger than the width of the lines of the second line screen 20.
  • the lines of the first line screen 10 and the second line screen 20 are viewed from one direction Perpendicular to the surface of the film 1 (see lines of sight 4, 5) each perceived in their own, separate color.
  • the lines of the first line grid 10 appear to the viewer as lines of red color and the lines of the second line screen 20 through the film 1 as lines of yellow color. The observer thus sees from a direction perpendicular to the surface of the Slide 1 has a structure containing adjacent red and yellow lines.
  • the light beam 1 passes the lines of the first line screen 10 in a region dependent on the tilt angle and then reaches the lines of the second line screen 20 (see line of sight 8). Therefore, the colors of the superimposed optical structures influence each other in this area, so that, according to the laws of subtractive color mixing, the observer sees at an angle areas having an orange color. This color change from red or yellow to orange represents the color change effect explained above.
  • FIG. 2 shown security element corresponds to the in Fig. 1 sketched security element with the difference that even when viewed from above vertically, ie perpendicular to the surface of the film 1, the line grid 10 and 20 are partially arranged one above the other, so that the viewer recognizes areas from the vertical viewing direction, which have an orange color ( see line of sight 7).
  • the line grid 10, 20 of in Fig. 1 and 2 Security elements shown were each printed on the film 1 from both sides, for example by means of offset or inkjet printing.
  • the color of the lines of the line grid results in each case by corresponding pigments, which are contained in the respective printing ink.
  • the colors of the lines of security elements according to Fig. 1 and 2 are generated by illumination with visible light.
  • FIGS. 3 and 4 become the Figures 1 and 2 very similar security elements shown.
  • the first embodiment of Fig. 3 analogous to the security element according to Fig. 1
  • the second embodiment according to Fig. 4 analogous to the security element according to Fig. 2
  • Both The inks used for the first line grid 10 'and the second line grid 20' are, in contrast to the printing inks used for the line screens 10, 20 Figures 1 and 2 to pigments which emit electromagnetic radiation in the visible wavelength range when irradiated with light from the UV wavelength range by means of a UV lamp 12.
  • the in the first line grid 10 'in Fig. 3 For example, pigments used emit light from the visible red wavelength range and the pigments used in the second line grid 20 'emit light from the visible green wavelength range.
  • the observer recognizes red and green staggered lines from a direction perpendicular to the surface of the film 1 of the first exemplary embodiment of a security element according to the invention (see lines of sight 4, 5).
  • parts of the line grids 10 'and 20' lie one above the other and the observer now perceives dark brown lines in certain areas (see line of sight 8).
  • Fig. 4 Analogous to Fig. 2 are the in Fig. 4 shown line grid 10 ', 20' partially over each other. As a result, regions which already appear brown when viewed from vertically above (see line of sight 7) already appear brown due to the red-emitting first optical structure and the green-emitting second optical structure.
  • the third to fifth embodiments include line patterns arranged completely or partially directly above each other.
  • the upper first line grid 30, 30 'facing the observer completely absorbs the UV light irradiated by the UV lamp 12 and does not emit electromagnetic radiation in the visible wavelength range, so that the observer sees correspondingly black lines.
  • the UV lamp 12 differently arranged in the representation preferably behind the viewer's eye. This also applies to the FIGS. 3 and 4 ,
  • a second line screen 40 directly below the first line screen 30 is arranged in the third and fourth embodiments such that the lines of the second line screen 40 and 40 'are completely hidden by the lines of the first line screen 30 in a state in which the viewer perpendicular to the surface of the substrate 1 looks (see each line of sight 14). Therefore, the observer sees only black lines at this angle and in a small area around this angle.
  • the second line grid 40 'in this exemplary embodiment represents a composite line grid of adjacent lines with pigments which emit light of different color under UV irradiation.
  • the lines of the second line screen 40 ' are exemplarily composed of a first line 41 that emits light from the red wavelength range and a second line 42 that emits light from the green wavelength range. Due to the composite design of the second line grid 40 ', two color change effects are observed in this embodiment.
  • the observer looks from a first, oblique direction onto the security element (see line of sight 18), he sees past the first line grid 30 on the second lines 42 of the second line screen 40 'and sees a green color. If the observer tilts the security element in the opposite direction, starting from the vertical viewing direction, then the viewer, when tilted, recognizes a certain, given angles, the first lines 41 of the second line grid 40 ', which emit light from the red wavelength range.
  • FIG. 7 shown embodiment may be used as a combination of in Fig. 3 and Fig. 5 illustrated embodiments are considered.
  • First lines 41 'of the second line grid 40 "are arranged in the space between two lines of the first line grid 30' when viewed from the vertical direction (see line of sight 15) and therefore also visible when viewed from above (see view 17 '). The observer therefore sees black and red lines under UV irradiation from the vertical direction, and the second lines 42 'of the second line screen 40 "are analogous to those in FIG Fig. 5 embodiment shown below the lines of the first line grid 30 'and are therefore only when tilting the security element to the vertical by a certain predetermined angle visible (see lines 18 and 19).
  • the foils 1 'of the embodiments 1 to 5 must also be transparent to the UV wavelength range in order to allow excitation of the pigments of the lines of the second line raster 20', 40, 40 ', 40 ".
  • the position of the light source (UV lamp 12) can be changed while the position of the observer remains unchanged.
  • the first line grid 30, 30 ' consists of a color layer which is UV absorbing and transparent to visible light. It is achieved with the emitting under UV radiation second line grid 40, 40 'and 40 "for the viewer the same effect as in the in the Fig. 5 to 7 illustrated variant.
  • the embodiments according to the FIGS. 3 to 7 are also produced by means of two-sided offset printing or inkjet printing on the film 1 '.
  • the printing inks contain pigments which emit light in the visible wavelength range when irradiated in the UV wavelength range.
  • Fig. 8 shows a sixth embodiment of a security element according to the invention in the form of an eagle, which is analogous to the in Fig. 6 shown embodiment of two line grids 30, 40 'composed, wherein the security element on a security and / or security document in the form of a badge 50 (see Fig. 9 ) is arranged.
  • the first line grid 30, which is composed of a plurality of black lines, is provided.
  • the second line grid 40 ' is arranged, which consists of a plurality of first (eg red, dotted lines shown here) 41 and second (eg, green, shown in phantom) lines 42, wherein each a first line 41 is adjacent to a second line 42.
  • FIG Fig. 12 illustrated by the known CIE color system.
  • the first dot “red” represents the color of the first line screen 10, 10 'of the examples Fig. 1 to 4 , the color for the lines of the second line screen 40 of the third embodiment ( Fig. 5 ) as well as the color for the first lines 41, 41 'of the second line grid 40', 40 "of the fourth to sixth embodiments ( Fig. 6 to 11 ) for a security element according to the invention.
  • the second point “green” represents the color of the second line grid 20 'of the first and second embodiments ( Fig. 3 to 4 ) as well as the color for the second lines 42, 42 'of the second line grid 40', 40 "of the fourth to sixth embodiments ( Fig. 6 to 11 ) for a security element according to the invention.
  • the first coating and / or the second coating may additionally be provided with pigments which emit, reflect or absorb electromagnetic radiation in the wavelength range not visible to the human eye.
  • These pigments contain an additional security element, which is preferably machine-readable.
  • the embodiments shown above show a simple and inexpensive to manufacture security element, which offers a high security against counterfeiting especially due to its three-dimensionality.

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  • Business, Economics & Management (AREA)
  • Accounting & Taxation (AREA)
  • Finance (AREA)
  • Printing Methods (AREA)
  • Credit Cards Or The Like (AREA)
  • Polarising Elements (AREA)

Claims (10)

  1. Elément de sécurité pour un document de valeur et/ou de sécurité qui est disposé sur une couche transparente dans une gamme de longueurs d'ondes visible et UV, par ex. une feuille (1,1'), l'élément de sécurité comportant une première structure périodique, optique sous la forme d'une trame de lignes (30,30') ou d'une trame de points, laquelle constitue un premier revêtement sur le premier côté de la couche transparente et comporte une deuxième structure périodique, optique sous la forme d'une trame de lignes (40,40',40") ou d'une trame de points, laquelle constitue un deuxième revêtement sur le deuxième côté opposé au premier côté de la couche transparente, la première structure optique et la deuxième structure optique étant disposées se chevauchant de telle manière qu'elles présentent pour un observateur extérieur sous un certain angle de visée (α) prédéfini et un rayonnement UV, un effet à changement de couleur, le premier revêtement contenant une première couleur non transparente à la lumière UV et des pigments qui ont une couleur corporelle visible multicolore ou achromatique et le deuxième revêtement comportant au moins une deuxième couleur qui est différente de la première couleur et contenant des pigments luminescents, la première structure optique et la deuxième structure optique étant disposées l'une par rapport à l'autre de telle manière que les éléments de la première structure optique recouvrent complètement les éléments de la deuxième structure optique sous une certaine zone d'angle de visée ou d'angle d'éclairage prédéfinie.
  2. Elément de sécurité selon la revendication 1, caractérisé en ce que l'épaisseur (d) de la couche transparente se situe dans une gamme de 50 µm à 800 µm, de préférence dans une gamme de 70 µm à 250 µm, de façon particulièrement préférée dans une gamme de 100 µm à 150 µm.
  3. Elément de sécurité selon l'une quelconque des revendications précédentes, caractérisé en ce que la trame de lignes (30,30') de la première structure optique passe au moins par section parallèlement à la trame de lignes (40,40',40") de la deuxième structure optique.
  4. Elément de sécurité selon l'une quelconque des revendications précédentes, caractérisé en ce que l'intervalle entre deux éléments voisins de la première structure optique et/ou de la deuxième structure optique est de 0,1 fois à 100 fois l'épaisseur de la couche transparente, de préférence 0,5 fois à 10 fois l'épaisseur de la couche transparente, de façon particulièrement préférée 0,5 fois à 3 fois l'épaisseur de la couche transparente.
  5. Elément de sécurité selon l'une quelconque des revendications précédentes, caractérisé en ce que la largeur des éléments de la première structure optique et/ou de la deuxième structure optique est de 0,1 fois à 100 fois l'épaisseur de la couche transparente, de préférence 0,5 fois à 10 fois l'épaisseur de la couche transparente.
  6. Elément de sécurité selon l'une quelconque des revendications précédentes, caractérisé en ce que la première structure optique et/ou la deuxième structure optique contiennent dans leur totalité une information en image et/ou en texte et/ou numérique.
  7. Elément de sécurité selon l'une quelconque des revendications précédentes, caractérisé en ce que la première structure optique et/ou la deuxième structure optique sont appliquées au moyen d'un procédé d'impression, par ex. : impression à plat, typographique, par photogravure, sérigraphique et/ou numérique, de préférence au moyen d'impression en taille-douce, au moyen d'un procédé d'impression offset ou au moyen d'un procédé d'impression par jet d'encre.
  8. Elément de sécurité selon la revendication 1, caractérisé en ce que le premier revêtement comporte en plus des pigments luminescents qui émettent de préférence un rayonnement électromagnétique avec une longueur d'ondes qui est différente de la longueur d'ondes des pigments luminescents du deuxième revêtement.
  9. Document de valeur et/ou de sécurité avec un élément de sécurité selon l'une quelconque des revendications précédentes.
  10. Document de valeur et/ou de sécurité selon la revendication 9, caractérisé en ce que l'élément de sécurité est disposé dans une fenêtre du document de valeur et/ou de sécurité.
EP13798963.8A 2012-11-16 2013-11-15 Élément de sécurité pour un document de valeur et/ou de sécurité Active EP2920004B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL13798963T PL2920004T3 (pl) 2012-11-16 2013-11-15 Element zabezpieczający dla dokumentu wartościowego i/lub zabezpieczonego

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102012111054.9A DE102012111054B4 (de) 2012-11-16 2012-11-16 Sicherheitselement für ein Wert- und/oder Sicherheitsdokument
PCT/EP2013/073970 WO2014076245A1 (fr) 2012-11-16 2013-11-15 Élément de sécurité pour un document de valeur et/ou de sécurité

Publications (2)

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EP2920004A1 EP2920004A1 (fr) 2015-09-23
EP2920004B1 true EP2920004B1 (fr) 2017-01-18

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EP13798963.8A Active EP2920004B1 (fr) 2012-11-16 2013-11-15 Élément de sécurité pour un document de valeur et/ou de sécurité

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US (1) US20160303889A1 (fr)
EP (1) EP2920004B1 (fr)
CN (1) CN104781088B (fr)
AU (1) AU2013346725B2 (fr)
BR (1) BR112015009648B1 (fr)
DE (1) DE102012111054B4 (fr)
ES (1) ES2622368T3 (fr)
PL (1) PL2920004T3 (fr)
WO (1) WO2014076245A1 (fr)

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Publication number Priority date Publication date Assignee Title
US10036125B2 (en) * 2015-05-11 2018-07-31 Nanotech Security Corp. Security device
PL3305543T3 (pl) * 2016-10-04 2020-05-18 Hueck Folien Gesellschaft M.B.H. Element zabezpieczający oraz dokument wartościowy z tym elementem zabezpieczającym
DE102016015500A1 (de) * 2016-12-23 2018-06-28 Giesecke+Devrient Currency Technology Gmbh Datenträger mit Lumineszenzbereichen
DE102017106721A1 (de) * 2017-03-29 2018-10-04 Leonhard Kurz Stiftung & Co. Kg Verfahren zum Herstellen einer Mehrschichtfolie und eine Mehrschichtfolie sowie ein Sicherheitselement und ein Sicherheitsdokument
US10272712B2 (en) * 2017-05-09 2019-04-30 Abcorp Na Inc. Plastic card with security feature
AT521847A1 (de) * 2018-11-09 2020-05-15 Hueck Folien Gmbh Verfahren zur Herstellung eines Sicherheitsmerkmals
DE102019119687A1 (de) * 2019-07-19 2021-01-21 Bundesdruckerei Gmbh Sicherheitsmerkmal für ein Sicherheits- oder Wertdokument, mit mindestens einem Leuchtstoff, der im ultravioletten Spektralbereich anregbar ist und der im infraroten Spektralbereich emittiert
JPWO2021049234A1 (fr) * 2019-09-12 2021-03-18

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GB2350319B (en) * 1996-06-14 2001-01-10 Rue De Int Ltd Security printed device
DE19654607C2 (de) * 1996-12-20 1999-11-18 Bundesdruckerei Gmbh Verwendung mindestens einer gasförmigen Substanz, die in Wert- und Sicherheitserzeugnissen enthalten, diesen zugesetzt und/oder aus diesen freigesetzt wird
EP0967091A1 (fr) * 1998-06-26 1999-12-29 Alusuisse Technology & Management AG Objet ayant un effet optique
US7654581B2 (en) * 2005-05-06 2010-02-02 Canadian Bank Note Company, Limited Security document with ultraviolet authentication security feature
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DE102009060506A1 (de) * 2009-12-23 2011-06-30 Giesecke & Devrient GmbH, 81677 Sicherheitselement und Herstellverfahren dafür
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DE102011006191A1 (de) 2011-03-28 2012-10-04 Bundesdruckerei Gmbh Aus mindestens drei Laminatlagen gebildeter Laminatkörper, Verfahren zu dessen Herstellung und dessen Verwendung

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Also Published As

Publication number Publication date
EP2920004A1 (fr) 2015-09-23
US20160303889A1 (en) 2016-10-20
PL2920004T3 (pl) 2017-07-31
DE102012111054A1 (de) 2014-06-05
ES2622368T3 (es) 2017-07-06
WO2014076245A1 (fr) 2014-05-22
CN104781088A (zh) 2015-07-15
AU2013346725A1 (en) 2015-05-07
CN104781088B (zh) 2018-04-17
AU2013346725B2 (en) 2017-07-27
BR112015009648B1 (pt) 2021-06-15
BR112015009648A2 (pt) 2017-07-04
DE102012111054B4 (de) 2023-10-19

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