EP0477535B1 - Support de données multicouche et méthode de sa fabrication - Google Patents

Support de données multicouche et méthode de sa fabrication Download PDF

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Publication number
EP0477535B1
EP0477535B1 EP91114013A EP91114013A EP0477535B1 EP 0477535 B1 EP0477535 B1 EP 0477535B1 EP 91114013 A EP91114013 A EP 91114013A EP 91114013 A EP91114013 A EP 91114013A EP 0477535 B1 EP0477535 B1 EP 0477535B1
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EP
European Patent Office
Prior art keywords
data carrier
plane element
surface roughness
layer
areas
Prior art date
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Expired - Lifetime
Application number
EP91114013A
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German (de)
English (en)
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EP0477535A2 (fr
EP0477535A3 (en
Inventor
Albert Ojster
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GAO Gesellschaft fuer Automation und Organisation mbH
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GAO Gesellschaft fuer Automation und Organisation mbH
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/30—Identification or security features, e.g. for preventing forgery
    • B42D25/328—Diffraction gratings; Holograms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/30—Identification or security features, e.g. for preventing forgery
    • B42D25/305—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
    • B42D25/20—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
    • B42D25/30—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
    • B42D25/30—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
    • 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
    • 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
    • B42D25/40—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
    • B42D25/45—Associating two or more layers
    • B42D25/465—Associating two or more layers using chemicals or adhesives
    • B42D25/47—Associating two or more layers using chemicals or adhesives using adhesives

Definitions

  • the invention relates to a single-layer or multi-layer data carrier, in particular an identification card, security or the like, with a surface element (OVD) applied to a surface, which has optically variable effects which are dependent on the viewing angle, and a method for producing such a data carrier.
  • OLED surface element
  • OTD optically variable elements
  • holograms, kinegams, diffraction gratings and interference layer elements are used to secure credit cards, ID cards, banknotes, security documents and the like.
  • holograms, kinegams, diffraction gratings and interference layer elements are used to secure credit cards, ID cards, banknotes, security documents and the like.
  • Such elements meet the traditionally customary security requirements for authenticity features that can be tested by humans, ie. H. high production costs on the one hand and clear verifiability without additional aids on the other.
  • the OVDs are also state-of-the-art, which gives the associated product a modern, high-tech character.
  • embossed holograms are comparatively expensive, which has limited their use as carriers of individual information.
  • the production of holograms has so far only been possible in large quantities in an economically justifiable framework.
  • these measures should also be suitable to include the individual data, which, for example, is only assigned to the authorized user of an ID card.
  • the problem is therefore to individualize standard holograms produced in large series at the latest when the holograms are applied to a data carrier in such a way that they are specific only for this one data carrier or at least only for a limited number of data carriers.
  • EP-A-201 323 proposes to apply a hologram to a substrate, the hologram being designed in such a way that, on the one hand, the hologram can be clearly observed and, on the other hand, card-specific information located below the hologram can be read simultaneously. This is achieved in that all the hologram layers are at least partially transparent and the hologram-enhancing layer has a refractive index which has a difference of at least 0.1 compared to the hologram layer.
  • Cards are still known from daily use, which carry a hologram and which additional information is superimposed by embossing characters in the hologram area.
  • the object of the invention is to provide a data carrier with an optically variable element, in particular one Hologram to propose, in which any optically variable element can be individualized by additional measures.
  • This object is solved by the features of claims 1, 12 and 22. Developments of the invention are the subject of the subordinate claims.
  • the invention is based on the finding that additional information can be stored in almost all surface elements with optically variable effects that are dependent on the viewing angle, insofar as surface elements are used in which the optically variable effect is present over a large area and in which the optically variable effects are caused by structural changes, disturbances or Inhomogeneities in the layer structure changed locally, damped or even can be destroyed. If these disturbances are formed in the form of patterns, characters or symbols, they are integrated in the OVD arranged on a data carrier as patterns, symbols or symbols and, in addition to the optically variable effects that can be recognized at special viewing angles, are also recognizable. In this way, individualizations of OVDs can be produced, which can be checked together with the OVD because of the integration in the OVD, but are also protected by this from changes and manipulation.
  • the additional information according to the invention is preferably brought about in a technology deviating from the manufacture of the OVDs by targeted introduction of disturbances in the layers producing the optically variable effect, which in the simplest case is provided by providing locally limited surface roughness in surface areas with otherwise comparatively low surface roughness and by impressing it Roughness in the OVD is to be caused when it is attached to the data carrier.
  • surface roughness in the sense of the invention is to be referred to the data carrier in the state in which the OVD is fixed on the data carrier.
  • the surface When applied in so-called cold adhesive processes, the surface must have the necessary roughness at room temperature, which is necessary in order to "disturb" the optically variable layers locally. In the case of elements to be applied in the hot lamination or hot stamping process, the roughness must still have a sufficient level even at this temperature or at least appear at this temperature in good time in order to achieve the desired effects.
  • the latter aspect is of particular interest when printing inks are used in which pigments or the like together with thermoplastic binders are provided, since these printing inks form a surface which is smooth per se in the dried state, by means of which the pigments, however, in the sufficiently heated state under the action of pressure (laminating or hot stamping pressure) can make themselves known as "roughness" on the surface.
  • all elements can be used as layer elements which, on the one hand, have different optical properties at different viewing angles and, on the other hand, are so thin that the surface roughness visually changes these optical effects through surface deformations (preferably in the microscopic range).
  • These requirements essentially meet all the thin, glossy layers to be applied using transfer technology, as well as corresponding diffraction gratings, holograms, kinegrams, interference layer elements and the like.
  • Fig. 1 shows a conventional data carrier 1, z. B. an identity card, with a general print image 2 and an optically variable element 3, which is designed in the present case as an embossed hologram and in which the holographic information is symbolized with wavy lines 4.
  • Such data carriers 1 are usually constructed from a plurality of film layers in which the inner layers are opaque and are provided with printed images 2 on the front and back.
  • the printed inner layers are usually covered with transparent film layers.
  • the optically variable elements, in this case the hologram 3 are generally applied to the outer surface of these transparent cover foils. This is done either by gluing (cold lamination process) or by lamination under the influence of heat and pressure according to the so-called hot stamping or hot lamination process (hot lamination). Regardless of the method of application, the aim is always to arrange the preferably very thin hologram as smoothly as possible on the card surface.
  • the common transfer holograms have a metallized reflection layer, which looks like a high-gloss mirror under special viewing angles, but clearly shows the holographic information under other viewing angles.
  • Such holograms are integrated in the design of the data carrier, i. H. matched with the printed image 2 so that together they form an optical unit.
  • the additional information 5 is in the area of the embossed hologram 3, in the present case in the form of the Letter "A" are provided.
  • the additional information 5 is integrated in the highly shiny metal layer of the hologram 3 as a matt structure.
  • the holographic information is recognizable on the one hand, as usual, but on the other hand the additional information 5, which can be recognized from almost all viewing angles and which is virtually overlaid by the holographic information, stands out from the general due to the flat matt appearance holographic information.
  • the additional information 5 can be seen particularly clearly and specifically, especially under the reflection angles at which the holographic effects cannot be recognized, but rather the metal layer only appears as a mirror. At the angles at which the holographic information appears particularly clearly, the additional information 5 is less visible because it is to a certain extent outshone by the holographic information.
  • the structure of a transfer hologram that can be used according to the invention is shown schematically in FIG. 3 without taking into account the actual proportions.
  • the transfer belt consists of a carrier material 10, for example a polyester film, a separating layer 12 arranged thereon, which melts at the laminating temperature and enables the carrier layer 10 to be detached.
  • a protective lacquer layer 14 is provided adjacent to the separating layer 12, which comes to rest as an outer layer after transfer of the transfer hologram to a data carrier and offers the hologram a certain mechanical protection.
  • a thermoplastic layer 16 is provided under the protective lacquer layer 14, into which the diffraction structures of the hologram are embossed with an embossing stamp.
  • a metal layer 18 is evaporated onto the hologram structure.
  • embossing and steaming can be reversed in their order.
  • a protective lacquer 20 and a hot-melt adhesive layer 22 lying thereon are usually also provided on the side of the layered bond.
  • the metal layer 18 can also be evaporated so thin that it is partially permeable; a raster application of the metal layer or other variants is also conceivable.
  • the embossed hologram 3 consisting of the layers 14, 16, 18, 20 and 22 is transferred to the data carrier 1.
  • the embossing hologram is transferred to the data carrier in the hot embossing process with the help of a so-called hot embossing stamp.
  • the transfer tape with the hot-melt adhesive layer 22 is placed on the carrier layer 24.
  • the hot stamp is pressed with a defined pressure for a certain time, the separating layer 12 melting under the stamp and the hot adhesive layer 22 activated.
  • the carrier tape 10 is pulled off.
  • Exactly the parts of the hologram pressed by the hot stamping stamp remain adhering to the data carrier on the carrier layer 24.
  • the remaining parts of the hologram, which were not arranged directly below the hot stamp, remain on the carrier tape and are removed from the data carrier 1 with this.
  • the transfer belt is known per se and is not the subject of the invention.
  • the transfer in the hot lamination process takes place in a similar form, except that the data carrier is completely covered with lamination plates and heat and pressure act on the data carrier over the entire surface.
  • the element to be transferred must therefore, insofar as this is to be restricted to partial areas of the data carrier, already be present on the transfer belt in the dimensions in which it is to be present later on the data carrier.
  • FIG. 4 shows the area of the hologram of the data carrier 1 shown in FIG. 1 in section.
  • the card body 1 which as a rule consists of three or more layers, has been shown in one layer. The proportions of the layers are also not kept for better clarity.
  • the layer structure in FIG. 4 now includes the data carrier 1 on which the hologram consisting of the layers 20, 18, 16 and 14 is fastened by means of the adhesive layer 22.
  • the holographic information 4 is embossed in a known manner as a microrelief.
  • the layers 14 and 20 are designed as resistant lacquer layers, by means of which the hologram is protected against mechanical damage.
  • the layer structure 14, 16, 18, 20 and 22 is dimensioned and structured such that it fixes on the card body on the one hand forms a mechanically stable unit, but on the other hand has such a low intrinsic stability that detachment from the card leads to the destruction of the hologram.
  • transfer holograms can be found, for example, in DE-OS 33 08 831.
  • the same layer structure is selected as in FIG. 4, except that the additional information 5 is integrated into the layer structure as structural inhomogeneity.
  • the additional information 5 can be produced in a wide variety of forms.
  • it is generated by additional pressure information 6, which are arranged under the hologram and which, when the OVD is applied, are pressed into the layers 20 and 18 carrying the hologram through the layer structure.
  • the printing layer 6 consists of pigmented printing inks and preferably has a thickness of approximately 5 to 20 ⁇ m.
  • the ratio of binder and pigment is chosen so that there is a good "filling" in the dry color layer, i. H. the pigments are present throughout the layer thickness. This is usually always the case with highly opaque pigment colors.
  • the printing inks are structured very differently depending on the components used, it is not possible to name a preferred mixing ratio. However, tests have shown that the desired effect can be achieved with a large number of highly opaque and pigmented printing inks without additional measures.
  • the intensity of the effect is to be determined on a trial basis for each printing ink. A subsequent change in the intensity is possible by varying the layer thickness or by changing the pigment or binder compartment.
  • the hologram 3 shown in section in FIG. 5 and arranged above the printing layer 6 is by means of a hot lamination process under the action of pressure and heat pressed onto the card surface.
  • the softening adhesive layer 22 was activated, whereby on the one hand an intimate connection with the card surface is achieved and on the other hand the screen printing layer is impressed into the layer structure of the transfer hologram.
  • thermoplastic binder of the pigmented printing ink softens in the same way as the adhesive layer and yields to the side of the print, but the pigments "remain stacked on top of one another" and thus form a more or less rough surface structure depending on the grain size .
  • This structure is now embossed in the hologram layer 18 and generates disturbances in the relief structure of the hologram lying in the ⁇ range, which are visually recognizable in the otherwise smooth metal surface.
  • the disturbances generated in this way dampen the holographic recording on the one hand and, on the other hand, produce matt surface structures that contrast well with the surroundings in the high-gloss metal layer and are thus visually recognizable.
  • the disturbance of the holographic effect can be set in a wide range. H. it is both possible to completely eliminate the holographic effect in these areas and to attenuate it only so weakly that the additional information can only be seen when the metal layer is gleaming.
  • the information and data selected for the individualization are printed with pigment-containing printing ink in the areas of the card in which they are to appear in the hologram to be subsequently applied upset. If a holographic surface element is applied to this printed image in a hot lamination or hot stamping transfer process, the printed surface areas in the later hologram can be recognized as matt surfaces in the otherwise high-gloss metallic layer of the hologram.
  • the hologram effects are damped to a greater or lesser extent by these measures, depending on the intensity, but as a rule they are not completely destroyed, so that a superimposition of the two pieces of information that is recognizable from certain viewing angles can be recognized.
  • the printed additional information can also be printed on the adhesive layer 22 of the transfer hologram by means of the pigment-containing printing ink and transferred together with this onto the data carrier 1.
  • pigment-containing large-area printing layer instead of the pigment-containing large-area printing layer, it is possible to use appropriately filled cover films which are either also partially covered with clear lacquer or the like or in which transfer holograms are used in which the adhesive layer is varied in thickness in accordance with the additional information.
  • a printed image (alphanumeric characters, samples, etc.) is applied to a multilayer card with external transparent cover films in the area of the OVD using the screen printing process.
  • the screen printing was carried out with a 70 screen (70 meshes per centimeter) and using the repetitive screen printing ink J 65 (with carbon black pigment). 10% thinner (Repeat JVS) was added to the screen printing ink, which was originally in paste form.
  • a commercially available transfer hologram was laminated onto the hardened printed image, which had a dry layer thickness of approximately 20 ⁇ .
  • the hologram was recognizable with high brilliance in the unprinted areas. In the area of the screen printing characters, these were present as sharply delineated and clearly recognizable matt structures from all viewing angles. The holographic effect is still visible in the area of the additional information, but only with very subdued quality.
  • a card as in Example 1 was used, i. H. a multi-layer structure with external transparent cover foils.
  • characters in the form of a grained surface relief were provided on the card surface. This surface relief was created by local sandblasting of the high-gloss laminating panels.
  • a commercially available transfer hologram was applied over the relief structures using the hot stamping transfer process.
  • the characters were also recognizable as sharply contoured matt structures that clearly stood out from the glossy structure of the hologram at the respective viewing angles.
  • the matt structures were, however, much weaker and were primarily visible only in the gloss angle of the metal layer.
  • the holographic effect was so strong in the areas of the additional information that it almost completely disappeared when the viewing angle was optimal for the hologram.
  • a card as in example 1 was printed over the entire area with screen printing ink in the OVD area (Repeat J 65, screen with 70 meshes per centimeter). After the ink had hardened, a pattern was engraved on the screen printing surface or the screen printing ink was removed again in the form of a pattern.
  • Example 3 a card was prepared with a large-area screen printing field and, after the ink had hardened, was partially covered with clear lacquer (Repeat J 70, layer thickness about 20 ⁇ ). A commercially available transfer hologram was applied using this arrangement in the hot stamping transfer process.
  • the areas covered with clear varnish in the hologram area could be recognized with a high-gloss, undamped holographic effect.
  • the additional information, as described in Example 1 appeared as matt structures with a strongly damped holographic effect.
  • a transfer hologram was laminated onto a card with large-scale screen printing (corresponding to Example 3), in which the thickness of the adhesive layer was varied in a pattern.
  • the thin areas of adhesive layer corresponded to the thickness customary in transfer holograms.
  • the thick adhesive layer areas were reinforced by additional adhesive printing by about 15 micrometers.
  • the additional information (in the areas of the thin adhesive layer) was recognizable as matt structures as in Example 1.
  • the hologram was available in an undamped, shiny form.
  • a commercially available transfer hologram was applied to a card with outer transparent films (according to Example 1) using the hot stamping method. Before the hologram was applied, a screen print pattern with pigmented printing ink (Repeat J 65; 70 screen) was applied to the adhesive layer.
  • the screen print pattern was recognizable as a matt structure in the highly glossy metal layer of the hologram, as in the previous examples.
  • the surface areas not covered with clear lacquer were more or less recognizable as matt structures in the high-gloss metal layer, depending on the viewing angle.
  • a transfer hologram was applied to a card with transparent cover films (corresponding to Example 1) using the hot stamping method.
  • a sandblasted relief was embossed into the transfer hologram before being applied to the card against the back of a highly polished steel plate.
  • the additional structures generated in this way were recognizable as matt pattern structures in the transfer hologram before the transfer to the card.
  • a transfer interference element was hot stamped upset.
  • Such interference elements are known and described, for example, in US Pat. No. 3,858,977.
  • the transfer element Before the transfer element was applied, it was embossed from the back (adhesive layer) against a smooth steel surface with a pattern-like roughness structure.
  • the transfer element normally has an orange-gold color effect, which changes to a shimmering green color effect when the viewing angle is changed.
  • the areas with the additional information were now almost consistently recognizable as a matte structure with a slightly iridescent yellow color at all viewing angles.
  • a transfer interference element was applied to a card as described in Example 1 (screen printing on a transparent cover film). After the transfer film had been removed, the same color change effects were discernible in the screen printing areas as in the exemplary embodiment described in Example 9.
  • the invention opens up a very simple and inexpensive way of providing OVDs with additional information.
  • the additional information based on the optically variable effect, can either be of little dominance or only secondary effect, or it can be easily recognizable from all viewing angles.
  • the additional information is always recognizable with the optically variable effect and binds harmoniously in the overall impression of the optically variable effect.
  • optically variable elements in particular holograms
  • the structures required for the additional information according to the invention can be generated in one or more intermediate work steps.
  • the required measures are carried out on the respective semi-finished cards and / or on the finished cards.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • General Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Credit Cards Or The Like (AREA)
  • Holo Graphy (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
  • Cash Registers Or Receiving Machines (AREA)
  • Inspection Of Paper Currency And Valuable Securities (AREA)
  • Error Detection And Correction (AREA)
  • Near-Field Transmission Systems (AREA)

Claims (22)

  1. Support de données, mono- ou multicouche, en particulier carte d'identification, papier valeur ou similaire, comprenant un élément de surface (3) rapporté sur une surface, et qui présente des effets optiquement variables qui sont fonction de l'angle d'observation, caractérisé en ce que des zones de la surface présentent une plus grande rugosité de surface que leur entourage, les contours de ces zones présentant une information ou un modèle, et en ce que ces contours sont imprimés dans la couche optiquement active de l'élément de surface rapporté sur cette zone.
  2. Support de données selon la revendication 1, caractérisé en ce que la rugosité de surface est provoquée par des modifications de la structure de surface ou à l'aide d'additifs.
  3. Support de données selon la revendication 2, caractérisé en ce que la rugosité de surface est réalisée par des impressions en surcharge.
  4. Support de données selon la revendication 2 ou 3, caractérisé en ce que les additifs contiennent des particules qui présentent une dureté et une résistance aux températures élevées telles qu'elles s'impriment par leur forme dans l'élément de surface (3).
  5. Support de données selon l'une des revendications 2 à 4, caractérisé en ce que les additifs sont appliqués par un procédé sérigraphique et sont présents sous la forme d'une épaisseur de couche à sec d'environ 5 à 20 µm.
  6. Support de données selon l'une des revendications 2 à 5, caractérisé en ce que les additifs sont des encres d'imprimerie contenant des pigments et des liants.
  7. Support de données selon la revendication 6, caractérisé en ce que les pigments sont du noir de fumée, du jaune de chrome (chromate de plomb) et/ou du dioxyde de titane.
  8. Support de données selon l'une ou plusieurs des revendications 1 à 7, caractérisé en ce que l'élément de surface (3) est présent sous la forme d'un feuil mince multicouche, qui est stratifié ou collé sur le support de données (1).
  9. Support de données selon l'une ou plusieurs des revendications 1 à 8, caractérisé en ce que l'élément de surface (3) comporte une couche métallique à poli spéculaire, une structure à couches d'interférence ou une structure de diffraction, de préférence un hologramme.
  10. Support de données selon la revendication 9, caractérisé en ce que l'élément de surface (3) est un hologramme obtenu par impression.
  11. Support de données selon l'une des revendications 8 à 10, caractérisé en ce que l'élément de surface (3) comporte une couche métallique (18) brillante et mince.
  12. Procédé de fabrication d'un support de données mono- ou multicouche, en particulier d'une carte d'identification, d'un papier valeur ou similaire, comprenant un élément de surface (3) rapporté sur une surface, et qui présente des effets optiquement variables qui sont fonction de l'angle d'observation, dans lequel on prépare d'abord un support de données, dont la rugosité de surface est modifiée dans des zones localement limitées, puis on applique l'élément de surface sur le support de données de telle façon qu'il recouvre au moins des parties de la zone de surface, dont la rugosité de surface a été modifiée, et l'on presse l'élément de surface sur les zones à rugosité de surface modifiée avec une pression telle que la structure de rugosité s'imprime dans la couche optiquement active de l'élément de surface.
  13. Procédé selon la revendication 12, caractérisé en ce que l'on modifie la rugosité de surface par impression à l'aide d'une encre d'imprimerie contenant des pigments.
  14. Procédé selon la revendication 13, caractérisé en ce que l'on réalise la modification de la rugosité de surface de telle façon qu'au moins dans les zones dans lesquelles l'élément de surface est disposé, l'encre d'imprimerie contenant des pigments soit imprimée sur toute la surface, et ensuite on élimine des zones déterminées de la couche imprimée, de manière appropriée, par un gravage mécanique ou thermique.
  15. Procédé selon l'une des revendications 12 à 14, caractérisé en ce que la modification de la rugosité de surface est réalisée de telle façon qu'au moins dans les zones dans lesquelles est disposé l'élément de surface, une encre d'imprimerie contenant des pigments soit imprimée sur toute la surface ou soit rapportée une feuille de couverture remplie de pigments et qu'ensuite la couche munie de pigments soit recouverte localement de zones de couches exemptes de pigments.
  16. Procédé selon l'une des revendications 12 à 15, caractérisé en ce que l'on réalise la modification de la rugosité de surface par impression sérigraphique.
  17. Procédé selon l'une des revendications 13 à 16, caractérisé en ce que l'on dispose les encres d'imprimeries sur une épaisseur de 5 à 20 µm.
  18. Procédé selon l'une ou plusieurs des revendications 13 à 17, caractérisé en ce que l'on règle l'ampleur de la modification de la rugosité de surface par la concentration en pigments dans le liant.
  19. Procédé selon la revendication 15, caractérisé en ce que l'on règle l'amplitude de la modification de la rugosité de surface par l'épaisseur de la couche délimitée localement et exempte de pigment.
  20. Procédé selon la revendication 12, caractérisé en ce que l'on provoque la modification de la rugosité de surface par impression d'informations supplémentaires sur le support de données.
  21. Procédé selon la revendication 20, caractérisé en ce que l'on règle l'ampleur de la modification de la rugosité de surface par la profondeur de l'empreinte de la surface de données.
  22. Procédé de fabrication d'un support de données mono- ou multicouche, en particulier d'une carte d'identification, d'un papier valeur ou similaire, comprenant un élément de surface (3) rapporté sur une surface et qui présente des effets optiquement variables qui sont fonction de l'angle d'observation dans lequel on prépare d'abord un support de données muni d'une surface lisse, ainsi qu'un élément de surface de ce type, puis on modifie la rugosité de surface de la face de l'élément de surface tournée vers le support de données, puis on modifie, dans les zones localement déterminées, la rugosité de surface de la face de l'élément tournée vers le support de données, on dispose l'élément de surface par toute sa surface sur le support de données, et on presse l'élément de surface sur le support de données avec une pression telle que la structure de rugosité s'imprime dans la couche optiquement active de l'élément de surface.
EP91114013A 1990-09-26 1991-08-21 Support de données multicouche et méthode de sa fabrication Expired - Lifetime EP0477535B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4030493 1990-09-26
DE4030493A DE4030493A1 (de) 1990-09-26 1990-09-26 Mehrschichtiger datentraeger und verfahren zu seiner herstellung

Publications (3)

Publication Number Publication Date
EP0477535A2 EP0477535A2 (fr) 1992-04-01
EP0477535A3 EP0477535A3 (en) 1992-04-29
EP0477535B1 true EP0477535B1 (fr) 1996-01-10

Family

ID=6415045

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91114013A Expired - Lifetime EP0477535B1 (fr) 1990-09-26 1991-08-21 Support de données multicouche et méthode de sa fabrication

Country Status (9)

Country Link
EP (1) EP0477535B1 (fr)
JP (1) JP3354580B2 (fr)
AT (1) ATE132811T1 (fr)
AU (1) AU656149B2 (fr)
CA (1) CA2052232A1 (fr)
DE (2) DE4030493A1 (fr)
ES (1) ES2082064T3 (fr)
MX (1) MX173731B (fr)
ZA (1) ZA916843B (fr)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4200746A1 (de) * 1992-01-14 1993-07-15 Inform Vertriebsgesellschaft F Maschinenlesbarer ausweis und lesegeraet hierfuer
WO1993024332A1 (fr) * 1992-05-25 1993-12-09 Reserve Bank Of Australia Trading As Note Printing Australia Application de reseaux de diffraction sur des documents de securite
US5449200A (en) * 1993-06-08 1995-09-12 Domtar, Inc. Security paper with color mark
DE4432062C1 (de) * 1994-09-09 1995-11-30 Kurz Leonhard Fa Visuell identifizierbares optisches Element
DE4446368A1 (de) * 1994-12-23 1996-06-27 Giesecke & Devrient Gmbh Datenträger mit einem optisch variablen Element
US5991057A (en) * 1996-09-17 1999-11-23 Sony Corporation Image transformation of a picture by using a superimmposed hologram
DE19928060A1 (de) * 1999-06-15 2000-12-21 Whd Elektron Prueftech Gmbh Optisch variables Sicherheitsmerkmal und Verfahren zu seiner Herstellung
DE19940790B4 (de) * 1999-08-27 2004-12-09 Leonhard Kurz Gmbh & Co Übertragungsfolie zur Aufbringung einer Dekorschichtanordnung auf ein Substrat sowie Verfahren zu deren Herstellung
US6589628B1 (en) * 2000-06-27 2003-07-08 Omnova Solutions Inc. Article having optical effects
DE10047460A1 (de) * 2000-09-21 2002-04-11 Orga Kartensysteme Gmbh Personalisiertes Sicherheitserzeugnis
AT412200B (de) * 2001-10-05 2004-11-25 Securikett Ulrich & Horn Gmbh Bildelement
EP2591922B2 (fr) † 2002-04-03 2022-11-09 De La Rue International Limited Dispositif de sécurité variable optiquement et procédé
DE10343890A1 (de) * 2003-09-19 2005-05-04 Giesecke & Devrient Gmbh Sicherheitselement und Verfahren zur Herstellung desselben
DE102004017094A1 (de) * 2004-04-07 2005-11-03 Leonhard Kurz Gmbh & Co. Kg Verfahren zur Herstellung eines Kraftfahrzeug-Nummernschildes sowie ein Kraftfahrzeug-Nummernschild
JP5776247B2 (ja) * 2011-03-22 2015-09-09 凸版印刷株式会社 表示体

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1143086A (en) * 1965-08-13 1969-02-19 Ibm Information correlating
US4033059A (en) * 1972-07-06 1977-07-05 American Bank Note Company Documents of value including intaglio printed transitory images
DE2546007B2 (de) * 1975-10-14 1977-12-29 Siemens AG, 1000 Berlin und 8000 München Faelschungssichere ausweiskarte und verfahren zu ihrer herstellung
US4094575A (en) * 1976-04-30 1978-06-13 Minnesota Mining And Manufacturing Company Holographic article and process for making same
FR2418955A1 (fr) * 1978-03-02 1979-09-28 Instruments Sa Procede de codage et de reconnaissance de cartes d'acces
DE3650027T2 (de) * 1985-05-07 1995-01-26 Dainippon Printing Co Ltd Artikel mit transparentem Hologramm.
ATE69407T1 (de) * 1988-03-03 1991-11-15 Landis & Gyr Betriebs Ag Dokument.
DE3932505C2 (de) * 1989-09-28 2001-03-15 Gao Ges Automation Org Datenträger mit einem optisch variablen Element

Also Published As

Publication number Publication date
ATE132811T1 (de) 1996-01-15
DE4030493A1 (de) 1992-04-02
JP3354580B2 (ja) 2002-12-09
ES2082064T3 (es) 1996-03-16
MX173731B (es) 1994-03-22
EP0477535A2 (fr) 1992-04-01
JPH04273392A (ja) 1992-09-29
AU8476291A (en) 1992-04-02
EP0477535A3 (en) 1992-04-29
AU656149B2 (en) 1995-01-27
CA2052232A1 (fr) 1992-03-27
DE59107238D1 (de) 1996-02-22
ZA916843B (en) 1992-06-24

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