EP3606766B1 - Elément de sécurité et son procédé de fabrication - Google Patents

Elément de sécurité et son procédé de fabrication Download PDF

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Publication number
EP3606766B1
EP3606766B1 EP18717829.8A EP18717829A EP3606766B1 EP 3606766 B1 EP3606766 B1 EP 3606766B1 EP 18717829 A EP18717829 A EP 18717829A EP 3606766 B1 EP3606766 B1 EP 3606766B1
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EP
European Patent Office
Prior art keywords
region
coating
security element
contour
background
Prior art date
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Active
Application number
EP18717829.8A
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German (de)
English (en)
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EP3606766A1 (fr
Inventor
Christian Fuhse
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Giesecke and Devrient Currency Technology GmbH
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Giesecke and Devrient Currency Technology GmbH
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Publication of EP3606766A1 publication Critical patent/EP3606766A1/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
    • B42D25/324—Reliefs
    • 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
    • B42D25/23—Identity cards
    • 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
    • B42D25/24—Passports
    • 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
    • B42D25/328—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
    • B42D25/351—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
    • B42D25/373—Metallic 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
    • B42D25/40—Manufacture
    • B42D25/405—Marking
    • B42D25/425—Marking by deformation, e.g. embossing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/40—Manufacture
    • B42D25/45—Associating two or more layers

Definitions

  • the invention relates to a motif area which is provided with a first coating and provides the motif, and a background area which is provided with a second coating different from the first coating and which provides the background.
  • the invention further relates to a value document with a security element.
  • the invention also relates to a production method in which a motif area is provided with a first coating, which provides the motif, and a background area is provided with a second coating, which is different from the first coating, and which provides the background.
  • Security features for banknotes contain motifs, such as symbols, images or real-color images, which are intended to achieve particularly good recognition and security against forgery.
  • security elements are known in particular, the motifs of which are formed by structured, different coatings against the background.
  • Such security elements use, for example, a coating which has a color effect that is dependent on the viewing angle for designing the motif and a coating that acts independently of the viewing angle for the background.
  • structuring the register accuracy of the coating is of considerable importance. This places demands on corresponding structuring techniques, such as photolithographic processes or printing with so-called washing inks.
  • document WO 2013/091858 A1 discloses a security element with a plurality of microimages, each microimage being formed by a microcavity structure.
  • document WO 2016/092040 A1 discloses a multilayer body with a partial reflective layer.
  • the invention is therefore based on the object of improving a security element, a value document and a production method of the type mentioned at the beginning in such a way that the producibility is facilitated and at the same time the quality of the security element is increased.
  • a security element for producing documents of value such as bank notes, checks or the like, which shows a motif against a background.
  • the motif is generated by a motif area that is provided with a first coating.
  • the background is provided by a background area of the security element which is provided with a second coating different from the first coating.
  • the different coatings contribute to the visual difference between the subject and the background, but need not be the only properties of the subject area or background area that create the visual difference. Possible options will be explained later.
  • the background area and the motif area are separated from one another by an outline area.
  • This is formed by a relief structure which has a geometry which is designed such that the relief structure at least partially absorbs light, so in plan view z. B. appears dark. In this way, a brightness and / or color contrast is brought about between the outline area on the one hand and the motif area and background area on the other hand.
  • the relief structure serves to absorb register fluctuations during the application of the first and / or second coating, in that the relief structure lies under the edges of the first coating and / or second coating and is one with both coatings has a similar, preferably dark, appearance.
  • provision is made analogously for a motif area in the security element to be provided with a first coating and to provide the motif.
  • a background area is provided with a different second coating and provides the background. Furthermore, an outline area is provided which delimits the motif area and the background area from one another, the outline area being formed by a relief structure. This has a geometry which is such that the relief structure at least partially absorbs light. In this way, a brightness and / or color contrast is generated between the outline area on the one hand and the motif area and background area on the other hand.
  • the relief structure is arranged in such a way that it absorbs the register fluctuations of the first and / or second coating.
  • the contour area is produced before the first and / or second coating is applied and is covered by one or both coatings.
  • the outline area creates a clearly recognizable outline which delimits the motif and background area from one another. Due to the relief structure, the real edge of the first and / or second coating cannot be seen.
  • the optically effective part of the motif area and background area ends at the edge of the relief structure of the outline area, regardless of any register fluctuations during the application of the first and / or second coating. In other words, fluctuations in the boundary line between the two coatings are hidden in the outline, which, regardless of the first and / or second coating, causes the brightness and / or color contrast to the adjacent motif and background areas due to its geometry of the relief structure.
  • the effect of the contour line area requires a certain width of the contour line area and thus the relief structure, which is selected such that it covers register fluctuations when the first and / or second coating is applied.
  • a range from 0.1 mm to 1.0 mm has proven to be advantageous here, and a range from approximately 0.3 mm to 0.7 mm has proven to be particularly advantageous, since register fluctuations can be reduced to half of these without further effort when structuring the coatings Values, e.g. B. can be limited to +/- 0.2 mm.
  • the relief structure of the outline area is designed in such a way that, due to its geometry, it brings about a contrast in terms of brightness or color between the outline area and the motif and background area.
  • the geometry is expediently chosen so that the contrast is largely independent of whether the first or second coating is on the relief structure.
  • the relief structure comprises a subwavelength grating or a moth's eye structure which is designed to be light-absorbing.
  • the first and the second coating preferably abut one another at a boundary line.
  • This boundary line lies above the relief structure of the outline area.
  • the first and second coatings are selected in such a way that the best possible contrast between the motif area and the background area is achieved.
  • metallic or highly refractive coatings or a layer composite that creates a color change effect can be used.
  • a color-shifting color shift coating with a three-layer structure with reflector / dielectric / absorber can be used.
  • the security element also has the advantage that the motif is easier to recognize because it is delimited from the background by a high-contrast contour line.
  • the motif and / or background area with a then coated relief structure, which, however, differs from that of the outline area, so that the brightness and / or color contrast between the outline area on the one hand and the motif area and the background area on the other consists.
  • the contrast between the outline area and the motif area as well as the background area can then also be enhanced, for example, by appropriate selection of the profile geometry of the relief structure.
  • the relief structures of the motif and background area are coated, eg metallic or highly refractive.
  • Relief structures with micromirrors, for example, are known from the prior art (cf. DE 102010049617 A1 ). These micromirrors can be arranged in pixels which each have micromirrors oriented in the same way.
  • micromirrors running effects or 3D effects can in particular also be implemented in the motif and / or background area.
  • Fresnel structures cf. EP 1562758 B1
  • Relief heights of a maximum of 100 ⁇ m to a maximum of 1 ⁇ m and lateral dimensions of less than 100 ⁇ m to less than 10 ⁇ m are known for micromirrors.
  • a different relief structure can be used for the background area and the motif area. It is crucial that the contour area dampens or cancels out the effect of the first and second coating. He especially achieves this good as a so-called moth-eye structure (cf. WO 2006/026975 A2 and EP 2453269 A1 ).
  • the contour line area can be equipped with a structuring by designing the relief structure in a correspondingly structured manner.
  • the structuring can mean an interruption of the outline area and / or comprise microtext or information that cannot be seen with the naked eye.
  • the outline area can also be a contour line within a complex motif.
  • a complex motif consists of several motif components, whereby one of the motif components is to be understood visually as the background compared to the other, so that the outline area separates the background area, i.e. a motif area of the complex motif, from another motif area of the complex motif.
  • Fig. 1 shows a top view of a bank note B which has a security element S to protect against counterfeiting.
  • the security element is in the schematic representation of the Fig. 1 a rectangular patch which, in the exemplary embodiment, is designed as a film element and is glued onto a bank note paper of bank note B.
  • the security element could equally be used in a security thread or a window area of the B banknote.
  • Fig. 2 shows the security element S, the purely exemplary motif depicting a hummingbird with a year in front of a background.
  • a motif area 1 and a background area 2 are formed by different coatings which, when reflected, form an optical contrast so that the motif can be perceived with the naked eye.
  • the hummingbird and the year are each separated from the background by an outline.
  • the outlines are generated in outline areas 3 by a relief structure which is designed in such a way that it forms a contrast to both the motif area 1 and the background area 2. This significantly increases the perceptibility of the motifs for a viewer.
  • the relief structure in the outline is provided with embossed structures which, after coating, show a contrast with respect to areas 1 and 2 and preferably become dark.
  • the appearance of the outline is included largely regardless of whether it is provided with the coating of the motif area 1 or the coating of the background area 2.
  • the contour area 3 is advantageously the same or almost the same dark. Due to register fluctuations, the contour line area is usually provided partly with the first and partly with the second coating. However, if its appearance with both metallizations is similarly dark (e.g. with a deviation in the degree of absorption of less than 0.2, preferably less than 0.1), this is hardly noticeable or not at all.
  • the contrast between the contour line area 3 and the areas 1 and 2 dominates the contrast between the various coatings within the contour line.
  • the contour areas 3 have a double function. On the one hand, they support the structuring of the motif by delimiting the motif from the background or different motif areas from one another. On the other hand, they absorb register fluctuations when the coatings are applied, since the relief structure, even with one of the two coatings, still creates a contrast between adjacent areas.
  • Figs. 3 and 4 show this fact.
  • Fig. 3 shows a section of the security element of Fig. 2 , namely a point in which the motif area 1 is bounded on both sides by the background area 2.
  • Contour line areas 3 lie at the borders.
  • the contour line areas 3 have a width which is selected such that it absorbs register fluctuations when the first coating is applied to the motif area 1 or the second coating to the background area 3.
  • the width of each contour line area 3 is greater than the maximum register fluctuations when the coatings are applied.
  • Fig. 4 shows these relationships in a sectional view in detail 4, which is indicated by a dashed circle in Fig. 3 is symbolized.
  • the security element S is built up on a substrate 5, on the upper side of which an embossing lacquer layer 6 is formed.
  • the motif area 1 is characterized by a first coating 7 and the background area 2 by a second coating 8, which influence or define the reflection impression of the motif area 1 and background area 2.
  • a transparent cover film 9 ensures a protected upper side of the security element S.
  • the contour area 3 is formed in that a moth's eye structure 10 is embossed in the embossing lacquer layer 6 under the coatings 7, 8, which when covered with the first and / or second coating 7 or 8 the contour area is designed to be light-absorbing.
  • the two coatings 7, 8 abut one another at a boundary line 11. This lies above the moth-eye structure 10.
  • the visual impression, ie the boundary of the motif area 1 or the background area 2 is defined by the contour area 3 and thus by the moth-eye structure 10.
  • Their width is selected so that register fluctuations with regard to the position of the boundary line 11 between the first coating 7 and the second coating 8 are absorbed.
  • the width of the moth's eye structure 10 is therefore greater than register fluctuations that occur when the first and second coatings 7, 8 are applied.
  • the production-related fluctuations in the edges of the first coating 7 and second coating 8 or the border line 11 are hidden by the underlying relief structure of the contour area 3 in the contour line, which contrasts with the neighboring ones regardless of an overlap with the first or second coating 7, 8 Areas 1, 2 and preferably looks the same or almost the same with both coatings.
  • first coating 7 would be, for example, a reddish or gold-colored coating (for example Au, Cu or Al-Cu alloy) or a color-shift coating, as is known as a multilayer structure from the prior art.
  • second coating 8 of the background area 2 would be an aluminum metallization.
  • the coatings 7, 8 can be structured using a so-called wash color printing process, which is known in the prior art.
  • the width of the contour line area 3 is selected such that the edges of the coatings or their boundary line 11 always lie within the contour line area 2 within the scope of the register fluctuations. If, for example, a tolerance of the border line position of +/- 0.2 mm succeeds with the wash color printing, the contour line area is chosen to be at least 0.4 mm wide.
  • the second coating in each case is then applied adjacent or with sufficient overlap to the first, so that the two different coatings abut or overlap above the boundary line, preferably at least still touching each other in all register situations. Regardless of the register fluctuations, the viewer sees two differently colored areas that are perfectly matched to one another, namely motif area 1 and background area 2, between which an exactly 0.4 mm wide outline runs.
  • outline is not restricted to an outer boundary of a motif. It can also be an internal contour line that delimits different areas of a motif from one another, so that one motif area is to be viewed as a background area, the other as a motif area.
  • Microcavities with an average distance greater than 500 nm can also show a high absorption effect.
  • a moth's eye structure is known which is formed by a metalized cross grating with a period of less than 420 nm.
  • a two-dimensional periodic subwavelength grating can also be used for light absorption, as is shown, for example, in FIG WO 2012/156049 A1 is described.
  • the demarcation between the background area, the motif area and the outline area can be achieved by means of relief structures that act as color filters. These do not necessarily have to be black, but can also appear in a different color, e.g. red or blue. Dark colors are advantageous for the recognizability of the subject.
  • the mentioned metallic subwavelength structures show an increased light absorption in the visible spectral range, partly due to a resonant light absorption, which leads to a colored reflection.
  • a high contrast between the outline area and the motif area or background area is guaranteed, as the mean absorption in the visible wavelength range for relief structures is always higher than that of smooth surfaces, such as those provided in the motif and background areas. Alternatively, these structures cannot be dark from some directions.
  • the average brightness of the outline area is advantageously less than 50% of the average brightness of the subject area and of the background area in reflection.
  • the relief structure of the contour line area 3 is preferably produced with lithographic methods, for example an e-beam system or a laser writing system which works, for example, with a two-photon absorption process. Alternatively, it can be done in a two-step lithographic process be generated. In a first step, nanostructuring is carried out. This is done, for example, by an electron beam lithographic process. Alternatively, laser beam interference methods are also possible. Aperiodic moth-eye structures can also be created by plasma etching or by structuring with ultra-short laser pulses. In a subsequent step, such an original or a copy thereof is leveled with photoresist. Spin coating or dip coating processes are particularly suitable for this.
  • the relief structure is then written into the photoresist in a photolithographic step and the desired areas of the structures are exposed.
  • This process can be carried out with the help of a laser writer using the direct exposure method.
  • the original created in this way can then be copied by electroplating or using photopolymers (e.g. Ormocere).
  • the surface structure of a stamp produced in this way can now be reproduced next to one another over a larger area using a step-and-repeat process.
  • An embossing cylinder can be produced by galvanic molding of this original replicated on the surface.
  • the structure can be embossed onto foil in a continuous roll-to-roll process. Nanoimprint processes such as hot embossing or embossing in UV-curable materials come into question here.
  • the embossed film is provided with the two coatings.
  • Common vapor deposition methods such as electron beam vapor deposition, thermal evaporation or sputtering can be used for this.
  • Metals such as aluminum, silver, copper, palladium, gold, chromium, nickel, iron, cobalt and / or tungsten and their alloys can be used as the metallic material.
  • the structure is optionally laminated and protected with the cover film 9.
  • the relief structure can also be covered with a multiple layer become.
  • so-called color shift coatings are particularly suitable, which consist of a semitransparent metal layer, a dielectric spacer layer and a metallic mirror layer located underneath.
  • Particularly suitable dielectrics are SiO 2 , MgF 2 , Ta 2 O 5 , ZnS and polymers.
  • a dielectric coating with a highly refractive material can be used.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Business, Economics & Management (AREA)
  • Accounting & Taxation (AREA)
  • Finance (AREA)
  • Credit Cards Or The Like (AREA)
  • Diffracting Gratings Or Hologram Optical Elements (AREA)
  • Laminated Bodies (AREA)

Claims (14)

  1. Élément de sécurité pour la fabrication de documents de valeur, tels que des billets de banque, des chèques ou leur équivalent, présentant un motif devant un arrière-plan, l'élément de sécurité (S) comportant :
    - une zone à motif (1) pourvue d'un premier revêtement (7) et mettant à disposition le motif ; et
    - une zone d'arrière-plan (2) pourvue d'un deuxième revêtement (8) différent du premier revêtement (7) et mettant à disposition l'arrière-plan;
    - une zone de déchirure (3) étant prévue, cette zone délimitant la zone à motif (1) par rapport à la zone d'arrière-plan (2) ;
    - la zone de déchirure (3) étant formée par une structure en relief (10) présentant une forme géométrique pour l'absorption de la lumière de sorte que se dégage un contraste de clarté et/ ou de couleur entre la zone de déchirure (3) d'une part et la zone à motif (1) et la zone d'arrière-plan (2) d'autre part ; et
    - la structure en relief (10) de la zone de déchirure (3) étant revêtue au moins en partie par le premier revêtement (7) et/ ou le deuxième revêtement (8) et absorbant ainsi les oscillations de registre du premier et/ ou du deuxième revêtement (7, 8).
  2. Élément de sécurité selon la revendication 1, caractérisé en ce que la zone de déchirure (3) a une largeur allant de 0,1 mm à 1,0 mm, de façon préférée de 0,3 mm à 0,7 mm.
  3. Élément de sécurité selon la revendication 1 ou 2, caractérisé en ce que la structure en relief (10) de la zone de déchirure (3) présente des grilles de sous-longueurs d'onde.
  4. Élément de sécurité selon l'une quelconque des revendications 1 à 3, caractérisé en ce que les deux revêtements (7, 8) butent l'un contre l'autre au niveau d'une ligne de délimitation ou se chevauchent au niveau d'une ligne de délimitation, la ligne de délimitation reposant au-dessus de la structure en relief (10) de la zone de déchirure (3).
  5. Élément de sécurité selon la revendication 4, caractérisé en ce que la structure en relief de la zone de déchirure (3) comporte une structure en œil de mite (10).
  6. Élément de sécurité selon l'une quelconque des revendications 1 à 5, caractérisé en ce que la structure en relief (10) de la zone de déchirure (3) évoque avec les deux revêtements (7, 8) une impression de couleur et/ ou une impression de clarté identique ou quasi identique.
  7. Élément de sécurité selon l'une quelconque des revendications 1 à 6, caractérisé en ce que les revêtements (7, 8) produisent un effet de couleur différent à l'extérieur de la zone de déchirure (3).
  8. Élément de sécurité selon l'une quelconque des revendications 1 à 7, caractérisé en ce que le premier et/ ou le deuxième revêtement (7, 8) est un composite en couche produisant un effet de couleur métallisé ou fortement réfringent.
  9. Élément de sécurité selon l'une quelconque des revendications 1 à 8, caractérisé en ce que la structure en relief (10) forme la zone de déchirure (3) avec une structuration de la zone de déchirure (3).
  10. Élément de sécurité selon la revendication 9, caractérisé en ce que la structuration de la zone de déchirure (3) comprend des interruptions de la zone de déchirure (3) et/ ou un microtexte ou des informations ne pouvant être détectés ou distingués à l'œil nu.
  11. Document de valeur équipé d'un élément de sécurité selon l'une quelconque des revendications 1 à 10.
  12. Procédé de fabrication d'un élément de sécurité (S) pour la fabrication de documents de valeur, tels que des billets de banque, des chèques ou leur équivalent, présentant un motif devant un arrière-plan ;
    - une zone à motif (1) étant pourvue d'un premier revêtement (7) mettant à disposition le motif ; et
    - une zone d'arrière-plan (2) étant pourvue d'un deuxième revêtement (8) différent du premier revêtement (7) mettant à disposition l'arrière-plan;
    - une zone de déchirure (3) étant prévue, cette zone délimitant la zone à motif (1) par rapport à la zone d'arrière-plan (2) ; et
    - la zone de déchirure (3) étant formée par une structure en relief (10) présentant une forme géométrique pour l'absorption de la lumière, de sorte qu'un contraste de clarté et/ou de couleur se produise entre la zone de déchirure (3) d'une part et la zone à motif (1) et la zone d'arrière-plan (2) d'autre part;
    - la structure en relief (10) étant disposée de telle sorte qu'elle absorbe les oscillations de registre du premier et/ou du deuxième revêtement (7, 8), en ce que la zone de déchirure (3) est recouverte au moins en partie par le premier revêtement (7) et/ou le deuxième revêtement (8) lors de l'application du premier revêtement (7) et/ou du deuxième revêtement (8) dans le cadre des oscillations de registre.
  13. Procédé de fabrication selon la revendication 12, caractérisé en ce que l'élément de sécurité (S) est fabriqué selon l'une quelconque des revendications 1 à 10.
  14. Procédé de fabrication selon l'une quelconque des revendications 12 ou 13, caractérisé en ce que le premier et/ ou le deuxième revêtement (7, 8) est retiré au moins en partie au-dessus de la structure en relief (10) pour produire une structuration de la ligne de déchirure.
EP18717829.8A 2017-04-04 2018-04-03 Elément de sécurité et son procédé de fabrication Active EP3606766B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102017003274.2A DE102017003274A1 (de) 2017-04-04 2017-04-04 Sicherheitselement und Herstellungsverfahren hierfür
PCT/EP2018/000149 WO2018184721A1 (fr) 2017-04-04 2018-04-03 Élément de sécurité et procédé de fabrication associé

Publications (2)

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EP3606766A1 EP3606766A1 (fr) 2020-02-12
EP3606766B1 true EP3606766B1 (fr) 2021-06-09

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EP (1) EP3606766B1 (fr)
JP (1) JP7204075B2 (fr)
CN (1) CN110461618B (fr)
DE (1) DE102017003274A1 (fr)
WO (1) WO2018184721A1 (fr)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10150293B4 (de) 2001-10-12 2005-05-12 Ovd Kinegram Ag Sicherheitselement
DE10254500B4 (de) 2002-11-22 2006-03-16 Ovd Kinegram Ag Optisch variables Element und dessen Verwendung
DE102004043871A1 (de) 2004-09-10 2006-03-30 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Verfahren zur Herstellung eines strahlungsabsorbierenden optischen Elements und strahlungsabsorbierendes optisches Element
JP5272434B2 (ja) 2008-02-18 2013-08-28 凸版印刷株式会社 表示体
JP5594043B2 (ja) 2010-10-08 2014-09-24 凸版印刷株式会社 偽造防止構造体、及び偽造防止媒体
DE102010049617A1 (de) 2010-10-26 2012-04-26 Giesecke & Devrient Gmbh Sicherheitselement mit optisch variablem Flächenmuster
DE102010050895A1 (de) 2010-11-10 2012-05-10 Giesecke & Devrient Gmbh Dünnschichtelement mit Mehrschichtstruktur
DE102011101635A1 (de) 2011-05-16 2012-11-22 Giesecke & Devrient Gmbh Zweidimensional periodisches, farbfilterndes Gitter
AU2011100778B4 (en) * 2011-06-29 2011-10-13 Ccl Secure Pty Ltd Improvements in security devices incorporating colour shifting inks
DE102011121588A1 (de) * 2011-12-20 2013-06-20 Giesecke & Devrient Gmbh Sicherheitselement für Sicherheitspapiere, Wertdokumente oder dergleichen
JP2013178357A (ja) 2012-02-28 2013-09-09 Nippon Seiki Co Ltd 表示装置
GB201400910D0 (en) * 2014-01-20 2014-03-05 Rue De Int Ltd Security elements and methods of their manufacture
DE102014016051A1 (de) * 2014-05-06 2015-11-12 Giesecke & Devrient Gmbh Sicherheitselement
BR112017000914B1 (pt) * 2014-07-17 2022-03-03 Visual Physics, Llc. Material de lâmina polimérica aprimorada para uso na produção de documentos de segurança poliméricos, tais como notas bancárias
US20160092040A1 (en) * 2014-09-26 2016-03-31 Ebay Inc. Communication device with contact information inference
DE102014118366A1 (de) * 2014-12-10 2016-06-16 Ovd Kinegram Ag Mehrschichtkörper und Verfahren zu dessen Herstellung
CN106313934B (zh) * 2016-09-29 2017-04-26 滕泽其 用于防伪的安全元件及其制造方法和安全票证

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CN110461618A (zh) 2019-11-15
EP3606766A1 (fr) 2020-02-12
JP7204075B2 (ja) 2023-01-16
WO2018184721A1 (fr) 2018-10-11
DE102017003274A1 (de) 2018-10-04
CN110461618B (zh) 2021-03-23
JP2020519478A (ja) 2020-07-02

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