EP3645302B1 - Élément de sécurité comprenant une image imprimée à effet tridimensionnel - Google Patents

Élément de sécurité comprenant une image imprimée à effet tridimensionnel Download PDF

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Publication number
EP3645302B1
EP3645302B1 EP18734748.9A EP18734748A EP3645302B1 EP 3645302 B1 EP3645302 B1 EP 3645302B1 EP 18734748 A EP18734748 A EP 18734748A EP 3645302 B1 EP3645302 B1 EP 3645302B1
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EP
European Patent Office
Prior art keywords
layer
carrier
design
structural
structural layer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP18734748.9A
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German (de)
English (en)
Other versions
EP3645302A1 (fr
Inventor
Juan NUÑEZ
Oliver MÜLLER
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+Devrient Mobile Security Germany GmbH
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Giesecke+Devrient Mobile Security Germany GmbH
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Publication of EP3645302A1 publication Critical patent/EP3645302A1/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
    • B42D25/40—Manufacture
    • B42D25/45—Associating two or more layers
    • B42D25/455—Associating two or more layers using heat
    • 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
    • B42D25/305—Associated digital information
    • 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
    • B42D25/30—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
    • B42D25/355—Security threads
    • 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
    • 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
    • B42D25/46—Associating two or more layers using pressure
    • 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
    • B42D25/475—Cutting 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
    • B42D25/40—Manufacture
    • B42D25/48—Controlling the manufacturing process

Definitions

  • the invention relates to a method for producing a physical security element with a three-dimensional printed image and a corresponding security element.
  • the invention relates to a plastic card, for example a credit card or a payment card, with a three-dimensional printed image that forms a security feature.
  • EP 2886357 A2 discloses a security document made up of several foils laminated together and having a security feature which is based on a relief structure and creates a three-dimensional impression.
  • the relief structure is produced using a relief lacquer and/or by embossing the surface of the film carrying the relief lacquer.
  • WO 2004/065135 A1 discloses a method for producing a three-dimensional image on a card body, in which a reflective layer is first formed on the back of a transparent core layer and an image-forming material is applied thereto, which can be driven into the core layer. A transparent topcoat is placed over the image-forming material. The resulting layer arrangement is then laminated to form a card body. In doing so, the image-forming material is driven into the reflective layer and into the core layer, creating an embedded image. When subsequently viewed from the front of the core layer, there is an enhanced reflection at contoured edges of the resulting embedded image, supporting a three-dimensional visual impression.
  • a multi-layer card is known in which a security element is embedded between two card layers, which has a plastic or lacquer layer with a relief structure.
  • the security element is connected to the adjacent card layers by layers of adhesive.
  • WO 01/62516 A1 discloses a card with several laminated layers between which a security element with a relief structure, eg in the form of a holographic diffraction structure, is embedded.
  • the relief structure lies in a lacquer layer of the security element and has a higher softening point than the adjacent layers.
  • the object of the invention is to specify a method for producing a three-dimensional pattern on a security element, which can be implemented without special requirements for the materials to be used or the method steps to be carried out, and which provides a feature that can be easily combined with other features.
  • the method according to the invention has the advantage that it can be carried out using common production methods and does not place any increased demands on the materials to be used.
  • the process provides forms and characters that appear spatial in a simple manner.
  • the feature that can be produced by the method is particularly suitable for common payment, credit and ID cards.
  • a particular advantage of the method according to the invention is that when it is carried out, no other structural components of the security element that are provided specifically for the production of features are damaged or impaired. In particular, no feature-forming layers are damaged during the production of cards.
  • the method according to the invention is based on the approach of forming a structural layer containing a pattern on a multilayer security element.
  • the structural layer is pressed into the core layer of the security element by lamination, in the process also deforming a design layer connected to the core layer.
  • the strength or thickness of the design layer is not changed or only slightly changed. Due to the deformation of the design layer, the pattern contained in the structure layer becomes recognizable as a spatially perceptible image structure.
  • the structural layer is applied as a lacquer layer in a printing process.
  • the lacquer used is preferably transparent.
  • the method according to the invention is described below using the example of a plastic card in a standard format, such as are commonly used as payment cards, credit cards or ID cards.
  • 1 shows an example of a chip card whose geometry corresponds to ISO 7810, for example.
  • the method is not limited to plastic cards, but is generally suitable for physical security elements that are made up of several layers bonded under pressure and heat and have a printable surface, such as labels, signs or packaging.
  • figure 1 shows a card with a chip 25 in a partially perspective top view as an example of a physical security element 20.
  • the card 20 typically has standard dimensions, for example according to ISO 7810. Their surfaces are smooth and lie plane-parallel to one another. On what is arbitrarily referred to as top surface 21, card 20 bears a plurality of features visually recognizable to a user, some for personalization and some for security.
  • the card 20 bears a pattern 10 produced by the method of the invention.
  • the pattern 10 covers part of the surface 21 and has a recess 19 in which the surface 21 is visible.
  • the card 20 carries an inscription 23 which is partially applied over the pattern 10. It also carries a separate security feature, such as a hologram 24.
  • FIG. 1 shows a first variant of a method for generating a pattern 10 on a card 20. A part of the components of the card 20 before the connection is shown in an exploded view that is not true to scale.
  • the base of the card 20 is a carrier 1 made of a thermoplastic material, which is usually provided in the form of a plastic layer or a combination of several plastic layers.
  • the plastic can be PVC, but also other common card materials. If the card to be produced corresponds to the ISO standard for credit cards, the carrier 1 typically has a thickness h 1 of 250 to 700 ⁇ m.
  • the carrier 1 forms the core layer of the card 20. Its practical thickness of the carrier 1 depends on the selected card format, the intended use, special specifications for certain card layers and/or the desired number and thickness of individual layers that form the carrier 1.
  • a design layer 3 is placed over the carrier 1 .
  • the design layer 3 is opaque or semi-transparent. It is generally applied over the entire surface 11 of the carrier 1 and has a thickness h 2 of 5 to 25 ⁇ m.
  • the design layer 3 is applied to the carrier 1 by screen printing. It is expedient to use a customary design ink on a transparent solution based, which is provided with color particles. In addition, it can contain, for example, metallic particles that create a special optical effect, for example a glitter effect.
  • the design layer 3 can also be provided as a separate layer in the form of a film.
  • the design layer 3 can, as in 2 indicated to be multi-layered. It then consists, for example, of a base layer 13, which is designed as a white layer, for example. There is an optically effective layer 14 which is designed, for example, as a layer with metallic particles. In a variant, the base layer 13 can be formed by a thin metal foil, to which a design print 14 is applied as the second layer. In the following, the design layer 3 is always shown as a single layer to simplify the description.
  • a structural layer 5 lies over the design layer 3.
  • the structural layer 5 is transparent, ie transparent or semi-transparent. It typically covers only part of the surface 11 of the carrier 1.
  • the structural layer 5 forms a pattern 10 in plan view, which represents pictorial or alphanumeric information.
  • the pattern 10 can be a simple closed geometric shape, such as a dot or a rectangle, or a complex shape that includes voids 19, such as letters, design patterns, or pictorial motifs.
  • voids 19 such as letters, design patterns, or pictorial motifs.
  • FIG 1 a stylized flower is indicated, the center of which is formed by a recess 19.
  • the pattern 10 does not cover the entire area of the card. It consists of inner zones 16 and edge areas 15, which differ in their optical effect.
  • the structural layer 5 is in the form of a lacquer layer.
  • a lacquer layer 5 is based on a solvent or is solvent-free and is printed using a screen printing process. Printing can take place either on the top layer 7 or on the design layer 3 . After application, the paint layer is cured. Their strength h 3 is appropriate between 25 ⁇ m and 100 ⁇ m; in practical tests the thickness was between 30 and 60 ⁇ m.
  • the structural layer 5 can also be embodied as an independent film in which the pattern 10 is introduced in the form of a structure of recesses.
  • a cover layer 7 lies over the structural layer 5. Its upper side is smooth and forms the surface 21 of the card 20.
  • the cover layer 7 is also transparent, ie transparent or semi-transparent. It is expediently provided as a film and has a thickness h 4 of 50 to 100 ⁇ m. Its thickness is expediently between 60 and 80 ⁇ m.
  • the carrier 1 has a higher plasticity than the other components, i.e. its shape can be permanently changed at a lower temperature than the other components.
  • the glass transition temperature of the carrier 1 is lower than that of the cover layer 7.
  • the cover layer 7 behaves hard in comparison to the carrier 1 and also in comparison to the other components and undergoes little or no change in shape as a result of conventional lamination, i.e. it can be compressed by a maximum of 15%.
  • the structural layer 5 has a greater or similar thermal stability to the carrier 1. Under pressure and heat, it undergoes a change in shape during lamination in its edge regions 15, while otherwise it essentially retains its shape and is compressed by a maximum of 10%.
  • the design layer 3 also has a greater heat resistance than the carrier 1.
  • the design layer 3 can hardly be laminated under normal conditions compress, ie their strength changes by at most 15%. However, the design layer 3 can be deformed by the action of pressure without its thickness changing.
  • the connection of the figure 1 components shown takes place in two phases: in the first phase, the design layer 3 is applied to the carrier 1 and the structure layer 5 is applied to the design layer 3 or to the cover layer 7 . In the second phase, the components that are then present are connected to one another in a conventional laminating process under pressure and heat.
  • the carrier 1 behaves softly in relation to the design layer 3 and the lacquer layer 5 during lamination.
  • the carrier 1 also behaves softly in relation to the cover layer 7 and the structural layer 5 . This means that while the top layer 7, structural layer 5, design layer 3 and lacquer layer 5 retain their shape completely or at least in principle during lamination, the carrier 1 changes its shape.
  • the lacquer layer 5 is pressed into the carrier 1 during lamination.
  • the design layer 3 is pressed into the carrier 1 together with the lacquer layer 5 .
  • the carrier 1 is compressed and reshaped wherever the lacquer layer 5 is located.
  • the lacquer layer 5 remains basically unchanged during lamination, but the edge regions 15 change their shape.
  • the inner zones 16 of the lacquer layer 5 remain essentially unchanged.
  • the thickness of the lacquer layer 5 remains essentially unchanged in the inner zones; at most, the lamination can result in a small, homogeneous compression of the thickness of max. 10%.
  • the lacquer layer 5 is reshaped like a lens.
  • the lower surface 18 of the lacquer layer 5, which faces the carrier 1, and the upper surface 1, which faces the cover layer 7, converge tangentially after forming and form an acute angle. In the process, the lower surface 18 rises in the edge regions 15 towards the upper surface 17 .
  • the design layer 3 is deformed during lamination where the lacquer layer 5 is located; However, its thickness does not change as a result, or only insignificantly, i.e. less than 10%, and the design layer 3 remains cohesive.
  • figure 3 illustrates the resulting map structure after the in figure 2 components shown are laminated together.
  • the carrier 1 is compressed and deformed accordingly.
  • the lacquer layer 5 is pressed into the carrier 1, taking with it the design layer 3 lying in between.
  • the design layer 3 is deformed according to the contour of the structure layer 5, but has not changed its thickness or only slightly, ie by at most 10%, and has remained connected.
  • the paint layer 5 is essentially undeformed in the inner zones 16, ie its thickness has changed by at most 10% according to the invention, and is shaped like a lens in the edge regions 15.
  • the paint layer 5 therefore runs in the edge areas 15 to form a smooth transition through decreasing
  • the design layer 3 lies accordingly in the inner zones 16 between the structural layer 5 and the carrier 1. In the edge regions 15, it rises in a gentle, continuous transition towards the cover layer 8, at the transitions to the recesses 19 or to the adjacent Areas of the surface 21 without pattern 10 to meet tangentially on the cover layer 7.
  • the design layer 3 lies directly against the cover layer 7 in the recesses 19 or in the areas of the surface 21 without a pattern 10 .
  • edge areas 15 of the paint layer 5 between areas with a paint layer 5 and areas without a paint layer 5 lead to an optically perceptible effect when viewed from above, because light is reflected differently in the edge zones 15 than in the inner zones 16 and in the zones outside of the Pattern 10 in which only the design layer 3 is present.
  • the effect of the effect produced by the edge regions 15 is that the pattern 10 represented by the lacquer layer 5 appears three-dimensional.
  • figure 4 illustrates the spatial effect. Shown is a top view of a card 20 which has a pattern 10 produced according to the method described.
  • the pattern 10 is an asymmetrical "U" in the example.
  • the cross section through the sample 10 along the line AA corresponds in principle to that in 3 shown cross section. If the illustrated pattern 10 receives light incident from the left side, for example, as indicated by the arrows, the edge areas 15 appear reflective to different extents, depending on whether they are inclined away from the incidence of light, are parallel to it, or are inclined against the incidence of light. In this way, the edge regions 15 produce a depth effect. As a result, the pattern 10 can be perceived in combination as a spatial structure in the design layer 3 .
  • Figures 5 and 6 show an embodiment variant of the method described, in which the structural layer 5 is pressed indirectly into a cover layer 8 via the carrier layer 1 .
  • the design layer 3 is not formed on the side 11 of the carrier 1 facing the structure layer 5, but on the side 12 facing away. Its upper side is smooth and forms the lower surface 22 of the card 20.
  • the further top layer 8, like the top layer 7, is transparent and has a thickness of 50 to 150 ⁇ m, suitably 60 to 90 ⁇ m.
  • the additional top layer 8 has a lower thermal stability and higher plasticity than the carrier 1 and also than the design layer 3. Ie the additional top layer 8 is more easily plastically deformable than the carrier 1 and design layer 3 and has a lower glass transition temperature.
  • the structural layer 5 When laminating the in figure 5 The arrangement shown, the structural layer 5 is pressed into the carrier 1. The structural layer 5 in turn changes in the edge regions 15 as shown in FIG 2 explains its cross-sectional profile and is reshaped.
  • the carrier 1 is in turn deformed by the structural layer 5 being pushed up and reproduces its surface contour.
  • the carrier 1 is doing, however - unlike in the embodiment after 2 - in profile not or at most insignificantly deformed and essentially retains its thickness h 1 over the entire surface; "insignificant” is understood to mean a homogeneous change in one dimension of at most 10%.
  • the carrier 1 instead of undergoing a reshaping, the carrier 1 merely deforms and reproduces the contour of the structural layer 5 on the side facing away.
  • the carrier 1 presses on the design layer 3 and the further top layer 8.
  • the design layer 3 is deformed by the carrier 1, but again its thickness h 2 essentially retained, ie changes by at most 10%, and remains coherent.
  • the design layer 3 in turn reproduces the contour of the structure layer 5 and is pressed into the further cover layer 8 .
  • the further cover layer 8 is compressed and thereby reshaped.
  • the pattern 10 represented by the structural layer 5 can thus be perceived as a three-dimensional pattern on the side 6 of the carrier 1 facing away.

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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)
  • Laminated Bodies (AREA)

Claims (12)

  1. Procédé de fabrication d'un élément physique de sécurité ayant un motif (10) à effet spatial, comprenant les étapes :
    - mise à disposition d'un support (1),
    - mise à disposition d'au moins une couche de recouvrement (7, 8) transparente,
    - application d'une couche design (3) sur le support (1),
    - cependant que soit le support (1) présente une stabilité dimensionnelle à la chaleur plus faible que la couche de recouvrement (7), soit une couche de recouvrement (8) présente une stabilité dimensionnelle à la chaleur plus faible que le support (1),
    - cependant que la couche design (3) est déformable sous pression,
    - agencement d'une couche structurelle (5) transparente constituant le motif (10) entre support (1) et couche de recouvrement (7), cependant que la couche structurelle (5) présente une stabilité dimensionnelle à la chaleur supérieure ou similaire à celle du support (1) ou d'une couche de recouvrement (7, 8),
    - laminage du support (1) et des couches (3, 5, 7, 8) sous pression et à chaud, cependant que
    lors du laminage, la couche structurelle (5) est pressée dans le support (1) ou par-dessus le support (1) dans une couche de recouvrement (8), ce par quoi la couche design (3) est déformée en fonction du motif (10) constitué par la couche structurelle (5), et ce par quoi la couche structurelle (5) est remodelée de telle façon dans ses zones de bord (15) que, en coupe transversale, les surfaces (17, 18) de la couche structurelle (5) convergent tangentiellement, caractérisé en ce que l'épaisseur de la couche design (3) n'est pas du tout modifiée par la déformation ou ne l'est au plus que légèrement, c'est à dire d'au maximum 10 %.
  2. Procédé selon la revendication 1, caractérisé en ce que le support (1) présente une stabilité dimensionnelle à la chaleur plus faible que la couche design (3), la couche de recouvrement (7) et la couche structurelle (5), et la couche structurelle (5) est agencée entre la couche design (3) et la couche de recouvrement (7), de telle sorte que, lors du laminage, la couche design (3) est pressée dans le support (1) par la couche structurelle (5), cependant que la couche structurelle (5) est remodelée en lentilles de telle façon dans ses zones de bord (15) que la surface (17), de la couche structurelle, tournée vers la couche de recouvrement (7) et la surface (18), de la couche structurelle, tournée vers la couche design convergent tangentiellement aux bords.
  3. Procédé selon la revendication 1, caractérisé en ce que la couche design (3) est appliquée sur le côté opposé (6) du support (1) et une autre couche de recouvrement (8) est agencée par-dessus, cependant que l'autre couche de recouvrement (8) présente une stabilité dimensionnelle à la chaleur plus faible que la couche design (3), la couche de recouvrement (7), le support (1) et la couche structurelle (5), et la couche structurelle (5) est agencée entre le support (1) et la couche de recouvrement (7), de telle sorte que, lors du laminage, la couche design (3) et le support (1) sont pressés dans l'autre couche de recouvrement (8) par la couche structurelle (5), cependant que la couche structurelle (5) est déformée en lentilles de telle façon que la surface (17), de la couche structurelle (5), tournée vers la couche de recouvrement (8) et la surface (18), de la couche structurelle, tournée vers la couche design convergent tangentiellement dans leurs zones de bord (15).
  4. Procédé selon la revendication 1, caractérisé en ce que la couche structurelle (5) est appliquée sous forme de couche de vernis sur la couche design (3) et/ou sur la couche de recouvrement (7).
  5. Procédé selon la revendication 4, caractérisé en ce que la couche de vernis (5) est durcie.
  6. Procédé selon la revendication 1, caractérisé en ce que la couche design (3) est une encre métallique et/ou est appliquée sur le support (1) avant le laminage.
  7. Procédé selon la revendication 1, caractérisé en ce que la surface (18), de la couche structurelle (5), tournée vers la couche design est inclinée vers le haut vers la surface (17) tournée vers la couche de recouvrement.
  8. Procédé selon la revendication 1, caractérisé en ce que la couche design (3) a une épaisseur comprise entre 5 et 25 µm et/ou est appliquée sous forme d'au moins deux couches (13, 14) qui se différencient en une propriété de matériau.
  9. Procédé selon la revendication 1, caractérisé en ce que la couche structurelle (5) a une épaisseur comprise entre 25 et 125 µm.
  10. Procédé selon la revendication 1, caractérisé en ce que la couche de recouvrement (7, 8) a une épaisseur comprise entre 50 et 200 µm.
  11. Elément physique de sécurité portant un motif (10) à effet spatial, comprenant un support (1) sur lequel une couche design (3), une couche structurelle (5) transparente et une couche de recouvrement (7) transparente sont réalisées, cependant que la couche structurelle (5) ne recouvre que des parties de l'élément de sécurité et le motif (10) est constitué entièrement ou partiellement par la couche structurelle (5),
    cependant que la couche structurelle (5) est enfoncée dans le support (1) et est remodelée en lentilles à ses zones de bord (15), de telle façon que les surfaces de la couche structurelle (5) convergent tangentiellement dans les zones de bord (15), et, par la couche structurelle (5), aussi la couche design (3) est enfoncée dans le support (1), cependant que la couche design (3) est déformée en fonction du motif (10) dans la couche structurelle (5),
    caractérisé en ce que l'épaisseur de la couche design (3) dans les zones déformées est la même ou, à des écarts près n'excédant pas 10 %, presque la même que dans les autres zones.
  12. Elément de sécurité selon la revendication 11, caractérisé en ce qu'il est réalisé sous forme d'une carte en un format standardisé.
EP18734748.9A 2017-06-27 2018-06-22 Élément de sécurité comprenant une image imprimée à effet tridimensionnel Active EP3645302B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102017006040.1A DE102017006040A1 (de) 2017-06-27 2017-06-27 Sicherheitselement mit räumlich wirkendem Druckbild
PCT/EP2018/000314 WO2019001763A1 (fr) 2017-06-27 2018-06-22 Élément de sécurité comprenant une image imprimée à effet tridimensionnel

Publications (2)

Publication Number Publication Date
EP3645302A1 EP3645302A1 (fr) 2020-05-06
EP3645302B1 true EP3645302B1 (fr) 2022-08-10

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Application Number Title Priority Date Filing Date
EP18734748.9A Active EP3645302B1 (fr) 2017-06-27 2018-06-22 Élément de sécurité comprenant une image imprimée à effet tridimensionnel

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US (1) US11267277B2 (fr)
EP (1) EP3645302B1 (fr)
CN (1) CN110678336B (fr)
DE (1) DE102017006040A1 (fr)
WO (1) WO2019001763A1 (fr)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102019121831B4 (de) * 2019-08-13 2021-03-04 Bundesdruckerei Gmbh Wert- oder Sicherheitsdokument und Verfahren zu dessen Herstellung
DE102025104195B4 (de) * 2025-02-05 2026-02-05 Ovd Kinegram Ag Verfahren zur Herstellung eines Mehrschichtkörpers, Mehrschichtkörper, Außenschichtverbund und Verwendung eines Außenschichtverbunds zur Herstellung eines Mehrschichtkörpers

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
LU65989A1 (fr) * 1972-08-31 1973-01-15
JPS60193637A (ja) * 1984-03-15 1985-10-02 Taihei Kagaku Seihin Kk 立体感のある地紋を有するプラスチツクカ−ド材料の製法
US5246757A (en) * 1992-04-28 1993-09-21 Minnesota Mining And Manufacturing Company Architectural signs with raised graphics
JPH081895A (ja) * 1994-06-21 1996-01-09 Dainippon Printing Co Ltd 化粧シート及びその製造方法
DE10007916A1 (de) 2000-02-21 2001-08-23 Giesecke & Devrient Gmbh Mehrschichtige, laminierte Karte mit eingelagertem, Reliefstrukturen aufweisenden Sicherheitselement
DE20219788U1 (de) * 2002-04-19 2003-04-24 Kurz Leonhard Fa Wertdokument und Prägefolie zur Herstellung des Wertdokumentes
CA2529833A1 (fr) * 2003-01-17 2004-08-05 Placard Pty Ltd Procede de formation d'image et carte
CA2550021A1 (fr) * 2003-12-16 2005-06-30 Note Printing Australia Limited Article de securite a image multicolore
DE102004042136B4 (de) * 2004-08-30 2006-11-09 Ovd Kinegram Ag Metallisiertes Sicherheitselement
DE102005039320A1 (de) * 2005-08-19 2007-02-22 Giesecke & Devrient Gmbh Kartenförmiger Datenträger
US7455235B2 (en) 2006-05-23 2008-11-25 Axalto S.A. Method for manufacturing a printed smart card with a visual relief effect
DE102008049631A1 (de) * 2008-09-30 2010-04-01 Giesecke & Devrient Gmbh Karte mit eingebettetem Sicherheitsmerkmal
US10479130B2 (en) * 2009-07-24 2019-11-19 Composecure, L.L.C. Card with embedded image
US9616646B2 (en) * 2010-07-15 2017-04-11 Sun Chemical Corporation Method for producing 3-D printed images
DE102013021964A1 (de) 2013-12-20 2015-06-25 Giesecke & Devrient Gmbh Sicherheitsdokument sowie Verfahren zum Herstellen eines Sicherheitsdokuments
DE102014001842A1 (de) * 2014-02-11 2015-08-13 Giesecke & Devrient Gmbh Verfahren zum Herstellen eines Sicherheitselements mit Negativschrift und daraus erhältliches Sicherheitselement

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Publication number Publication date
US20200147992A1 (en) 2020-05-14
CN110678336A (zh) 2020-01-10
US11267277B2 (en) 2022-03-08
CN110678336B (zh) 2021-03-23
WO2019001763A1 (fr) 2019-01-03
DE102017006040A1 (de) 2018-12-27
EP3645302A1 (fr) 2020-05-06

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