EP1668606B1 - Element de securite et son procede de production - Google Patents

Element de securite et son procede de production Download PDF

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Publication number
EP1668606B1
EP1668606B1 EP04765177A EP04765177A EP1668606B1 EP 1668606 B1 EP1668606 B1 EP 1668606B1 EP 04765177 A EP04765177 A EP 04765177A EP 04765177 A EP04765177 A EP 04765177A EP 1668606 B1 EP1668606 B1 EP 1668606B1
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EP
European Patent Office
Prior art keywords
layer
lacquer
security element
security
element according
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.)
Revoked
Application number
EP04765177A
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German (de)
English (en)
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EP1668606A1 (fr
Inventor
Theo Burchard
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Giesecke and Devrient GmbH
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Giesecke and Devrient GmbH
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Application filed by Giesecke and Devrient GmbH filed Critical Giesecke and Devrient GmbH
Publication of EP1668606A1 publication Critical patent/EP1668606A1/fr
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    • 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

Definitions

  • the invention relates to a security element for security papers, banknotes, identity cards, passports or the like, as well as a security paper and a document of value with such a security element. Furthermore, the invention relates to methods for producing the security element or the security paper and the value document with such a security element.
  • Securities and security documents such as banknotes, stocks, bonds, certificates, checks, high-quality admission tickets, but also other counterfeit securities, such as passports or other identity documents, are usually provided with security elements to increase their security against counterfeiting.
  • security thread in which a translucent plastic film is coated metallically and this coating is provided with recesses in the form of characters or patterns.
  • This security thread is embedded as a so-called "window security thread" in security papers, ie it is virtually woven into the paper during the formation of sheets of security paper so that it is freely accessible at regular intervals on the surface of the paper and only in the intermediate areas embedded in the paper is.
  • an additional transparent protective layer protects these structures and the metal coating against external mechanical and chemical influences.
  • the DE 102 26116 A1 describes a security element having at least two metal layers of different color, which are arranged on the same surface of the security element and at least partially directly adjacent to each other.
  • the metal layers are arranged on a plastic layer, which is part of the security element.
  • the security element can be a security thread, which consists of a self-supporting plastic film, on which the different colored metal layers are applied.
  • the security element can also be designed as a transfer element.
  • the layer structure of the security element consists of a carrier film, to which a plastic layer is applied. In this plastic layer diffraction structures can be introduced in the form of a relief structure. Above the different colored metal layers are arranged.
  • the transfer material on the metal layers on an adhesive layer which is activated when transferred to the corresponding security paper or document of value by means of heat and pressure in the areas to be transferred, and then lies between the security paper and the metal layers.
  • an adhesive layer provides some protection for the adjacent metal layers.
  • the DE 199 40 790 A shows a security element with a layer sequence 'adhesive' (plastic layer), 'metal layer', 'structural element' and 'lacquer layers'.
  • the plastic sheet of the security element is provided with diffraction structures in the form of a relief structure in which the diffraction structures any diffractive structures such as holograms or grating structures (for example, Kinegram ®, pixels grams) may be or the like, high demands on the chemical and physical resistance posed.
  • any diffractive structures such as holograms or grating structures (for example, Kinegram ®, pixels grams) may be or the like
  • the layer structure particularly sensitive is the Metallevampfung, for example, a Aluminiumbedampfung, since here even the slightest changes of the eye are perceived as faulty.
  • the metal layer is preferably attacked by acids and alkalis which, starting from tiny contact points, can cause extensive corrosion of the entire layer.
  • a lacquer layer can be applied.
  • the protective lacquer In order to obtain a homogeneous, closed surface, the protective lacquer must be perfectly wet and run. This ideal condition is usually never reached, so that in a simple printing always injuries of the protective layer thus applied can be found. By such defects as e.g. Cracks, holes, etc., aggressive media at any time can find their way to the metal layer, with the consequences described above.
  • the known protective layers are therefore generally insufficient to ensure optimum protection for highly sensitive, optically variable structures.
  • the invention is therefore based on the object to provide a security element and a method for its production, which avoids the disadvantages of the prior art.
  • the security element should have a high chemical and physical resistance with respect to the metallization and thus improved corrosion protection.
  • the security element has at least one plastic layer on which at least one metal layer is arranged, wherein at least two transparent and colorless lacquer layers are arranged one above the other on the metal layer.
  • the invention is based on the finding that the imperfections of a first lacquer layer are bridged with high probability when applying a further layer over this first lacquer layer. Each additional layer reduces the risk that aggressive media can penetrate to the metal layer.
  • the first lacquer layer and all further lacquer layers are formed from the same lacquer system.
  • Suitable protective coatings for this are all chemical-resistant compounds.
  • Particularly preferred protective coatings are polyurethane coatings, acrylates, polyvinyl chlorides or polyvinyl chloride copolymers, polyvinylidene chlorides and UV-crosslinkable dispersions, such as acrylic polyurethane dispersions, in particular aliphatic polyurethane dispersions. Due to the at least two-fold application of the protective coatings, the metal layer is well protected against physical and chemical influences as well as against the penetration of liquids and in particular of aggressive media.
  • the paint layers are formed from different paint systems.
  • the lacquer layers forming the protective layers are expediently coordinated with one another in terms of their adhesion properties such that they form a highly resistant composite.
  • Particularly preferred protective coatings of the combination coating are polyurethane coatings, acrylates, polyvinyl chlorides or polyvinyl chloride copolymers, polyvinylidene chlorides, UV-crosslinkable dispersions, such as acrylic polyurethane dispersions, in particular aliphatic polyurethane dispersions, and nitrocellulose.
  • the paint layers are present in a coating weight of about 0.3 to 4.0 g / m 2 , preferably from about 0.5 to 1.0 g / m 2 per layer on the metal layer , It is understood that the amount of coating required depends in particular on the paint used. Since the usually existing injuries or imperfections of the directly adjacent to the metal layer lacquer layer are bridged by applying at least one further lacquer layer with high probability, this first lacquer layer can also be applied with a slightly lower coating weight than the subsequent (s) layer (s) be. Of course, the reverse case is also conceivable, ie the first lacquer layer has a slightly higher coating weight than the subsequent protective layer (s). In any case, the respective layer thicknesses must be sufficient to form a total of closed surface after application of all paint layers.
  • UV paint Radiation-curing and in particular UV-drying paints
  • UV paint have extremely high physical and chemical resistance.
  • those also have the disadvantage that, as a rule, residual monomers and free photoinitiators remain behind as very reactive components in wells after radiation curing, depending on the quality of the substrate, the radiation power, the initiator system and the monomer system.
  • UV coatings often have weaknesses in the coating.
  • a first or lowermost lacquer layer is formed by a physically drying lacquer layer applied to the metal layer or metal layers, which establishes contact with the underlying metal layer or, in the case of recesses, with the underlying plastic layer , and a second or uppermost protective layer is present as a radiation-curing lacquer layer.
  • the latter protects the metal layer from physical and chemical influences, ensures good protection against the ingress of liquids and in particular aggressive media and also provides a high abrasion resistance.
  • the lowermost lacquer layer is advantageously formed by a 2-component solvent-borne polyurethane adhesive.
  • the protective layer is expediently applied to the metal layer in such a layer thickness that it forms as smooth and coherent a layer as possible on the metal layer and, in particular, optionally fills recesses present in the metal layer.
  • the usually still remaining defects of the paint layer, such as cracks, holes, etc., are closed according to the invention by applying one or more further paint layers.
  • the lacquers used for the lowermost lacquer layer comprise polyurethane systems, acrylates and UV-crosslinkable dispersions and emulsions which may be both solvent-based and water-based.
  • the uppermost lacquer layer is preferably a radiation-curing lacquer layer.
  • the radiation-curing lacquer layer is a UV-crosslinking lacquer layer.
  • Their extremely high physical and chemical resistance allows a corresponding qualitative increase and adjustment of the requirement profile. Due to the higher chemical resistance and the heavy wettability, such a lacquer coating provides a long-term, effective barrier against liquids, such as e.g. Acids and alkalis, the higher physical resistance also causes a high abrasion resistance.
  • a UV-crosslinking layer forms a non-fusible layer.
  • the amount of coating required depends, among other things, on the paints used. It has proven to be advantageous if the lacquer layer of physically drying lacquer is present in a coating weight of about 0.3 to 4.0 g / m 2 , preferably of about 0.5 to 1.0 g / m 2 on the metal layers, wherein the amount in the undried, wet state depends in particular on the solids content. In any case, the layer thickness should be sufficient to close existing recesses in the metal layer.
  • the lacquer layer of radiation-curing lacquer is applied at a coating weight of about 0.3 to 4.0 g / m 2 , preferably from about 0.5 to 2.0 g / m 2 .
  • the uppermost lacquer layer is applied directly to the lowermost lacquer layer.
  • further physically drying and / or radiation-curing lacquer layers can be provided between the uppermost and the lowermost lacquer layer.
  • further coats of solvent-based 2-component polyurethane adhesive has been found.
  • the lacquer layers forming the lacquer layers are appropriately coordinated with one another in terms of their adhesion properties so that they form a highly resistant composite.
  • the composition of the lowermost lacquer layer is selected such that optimum adhesion of the subsequently applied radiation-curing lacquer is ensured.
  • an adhesive layer or a bonding agent layer with an adhesive layer, above which the security element is attached to the security paper or document of value, is also arranged above the uppermost lacquer layer.
  • the security element can advantageously be provided with a slight color shade.
  • the security element on at least two metal layers on the plastic layer, which are arranged on the same surface and preferably at least partially directly adjacent to each other.
  • the metal layers need not be arranged in a plane of the security element, but may be arranged one above the other at least in regions. There can also be three or more metal layers on top of each other may be arranged, wherein not all metal layers necessarily have to be arranged on the same surface of the security element.
  • Various possible arrangements of the metal layers are described for example in US Pat DE 102 26116 A1 described, which is incorporated herein by reference.
  • the lacquer layers are applied on both sides, so that sufficient protection against physical and chemical influences is ensured for each of the metal surfaces.
  • the metals may be, for example, aluminum, chromium, nickel, copper, gold, silver or other "non-ferrous metals" or colored metal alloys.
  • the metal layers may have recesses in the form of alphanumeric characters, patterns, logos or the like.
  • the security element can be a security thread consisting of a self-supporting plastic film onto which the metal layers are applied.
  • This security thread can at least partially be incorporated into a security paper or value document.
  • the plastic film of the security element may further with diffraction-optically effective surface structures, such as Refr relien, holograms, but also lattice structures (for example, Kinegram ®, pixels grams) or the like be provided. They are preferably relief-like diffraction structures, in particular embossed diffraction structures.
  • the diffraction structures can be introduced directly into the plastic film. However, they can also be incorporated into an additional plastic layer applied to the plastic film, for example a lacquer layer, preferably embossed.
  • the visually visible due to the diffraction patterns pattern can be designed arbitrarily. Thus, depending on the desired application or security level on the one hand simple geometrical patterns, on the other hand, but also complicated image subjects conceivable.
  • the security element can also be designed as a transfer element.
  • This variant is particularly advantageous if the security element is arranged completely on the surface of the security paper or value document.
  • a diffraction structure can be integrated into the layer structure of the security element.
  • the security element is arranged on the surface of the security paper or value document, then it can have any outline contours, such as, for example, round, oval, star-shaped, rectangular, trapezoidal or strip-shaped outline contours.
  • the security paper or security document to which the security element is applied has a through opening.
  • the security element is here in the range arranged the opening and projects beyond this on all sides. In this case, the security element of the front and the back is verifiable.
  • the use of the security element according to the invention is not limited to the field of security documents.
  • the security element according to the invention can also be used advantageously in the field of product security for securing counterfeiting of any goods.
  • a security element of the abovementioned type after vapor deposition of the metal layer (s) onto a plastic layer and, if appropriate, production of recesses, first a first or lowermost lacquer layer is applied in order to establish contact with the underlying metal layer, and in a further step a further protective layer applied, which bridges existing defects in the underlying layer, thus protecting the metal layer (s) from physical and chemical influences.
  • the application of the metal layers on the plastic layer is preferably carried out with a Vakuumierdampfstrom, wherein the individual metallic areas are respectively generated via masks.
  • the plastic layer may be in the form of a self-supporting plastic film or a carrier material, on which the plastic layer is arranged.
  • the first applied lacquer layer is dried before the application of a further lacquer layer.
  • a quick paint job From the point of view of production engineering and economic aspects, it makes sense to accelerate the physical drying process with additional measures.
  • dryers are preferably used, which have a hot air blower and / or an infrared radiator.
  • the final dryer preferably has power-controlled UV dry modules, which are tuned to the wavelength required for curing the uppermost lacquer layer and the layer thickness thereof.
  • the application of the individual transparent and colorless lacquer layers to the metal layer (s) is carried out by suitable methods.
  • the lacquer layers can be printed on, painted on and painted.
  • the coating layers are applied in gravure printing, by curtain coating and in coating machines.
  • the plastic film or the carrier material is provided in the form of an endless belt, wherein the method is carried out continuously.
  • the plastic layer may be provided in the form of an endless plastic film to form a sheet material which, after the top layer has been applied and dried, is cut into security threads of predetermined width.
  • the plastic layer is arranged on a specially prepared carrier material to a
  • the usually occurring defects of the first layer can be bridged, whereby the corrosion resistance of the security element is improved.
  • a radiation-curing and in particular UV-drying lacquer layer is applied, a higher abrasion resistance can be achieved beyond.
  • Fig.1 shows an inventive document of value in supervision.
  • this banknote has a strip-shaped security element 2, which extends over the entire width of the banknote 1.
  • the entire surface facing the viewer of the security element 2 is metallic, wherein the areas 3, 4 are covered with differently colored metals, each bordering each other directly in the example shown and are arranged alternately.
  • security element 2 is a diffraction-optical security element, which consists of an embossed plastic layer and at least one metallic layer.
  • Fig.1 banknote 1 shown a over the entire width of the banknote extending security thread 10. This is at least partially embedded in the security paper, ie it is virtually woven into the paper during the sheet formation of the security paper so that it is freely accessible at regular intervals on the surface of the paper, as indicated by the hatched areas 11, and only in the Intermediate areas completely embedded in the paper.
  • Fig. 2 shows a cross section along the line A - A in Fig. 1 ,
  • the lowermost layer shown here is the banknote substrate 31, which is preferably made of cotton paper.
  • the plastic layer 5 can be seen, in which the diffraction structure 6 is introduced.
  • the differently colored metal layers 3, 4 are arranged alternately directly adjacent to one another.
  • a first transparent and colorless lacquer layer 21 is arranged, which may be formed, for example, of solvent-based 2-component polyurethane adhesive.
  • a further transparent and colorless lacquer layer 22 for example from the solvent-based 2-component polyurethane adhesive or a UV-drying protective coating, coated.
  • the layers of the security element are attached via an adhesive layer 30 to the value document, here the banknote substrate 31.
  • the protective lacquer wets and runs perfectly with a simple layer application, so that in general no homogeneous, closed surface is obtained.
  • random defects 26 which may be present, for example, as cracks, holes, etc., it allows aggressive media to penetrate to the metal layer and cause corrosion there.
  • a second transparent and colorless lacquer layer 22 the defects 26 of the first transparent and colorless protective layer 21 are bridged, as in FIG. 2 you can see.
  • the first transparent and colorless protective layer 21 is applied in a slightly lower coating thickness than the second transparent and colorless protective layer 22.
  • the reverse case is also conceivable, in which the first lacquer layer has a slightly higher coating thickness than the subsequent lacquer layers.
  • the respective layer thicknesses must be sufficient to form a total of closed surface after application of all paint layers.
  • Fig. 3 shows a transfer material according to the invention in cross-section, which is used for the production of security elements on security papers, documents of value or the like.
  • This transfer material 13 consists of a carrier film 14, on which a plastic layer 15 is applied.
  • diffraction structures 6 are in shape introduced a relief structure.
  • the recesses 7, 8 have.
  • the first transparent and colorless lacquer layer 21 directly adjoins the diffraction structure 6. If the plastic layer 15 and the transparent and colorless lacquer layer 21 have a very similar refractive index, then the diffraction structure 6 can no longer be seen in these regions. Adhering to the transparent and colorless lacquer layer 21 is another transparent and colorless lacquer layer 22, which is applied in a somewhat smaller layer thickness. By the second transparent and colorless lacquer layer 22, which may also have flaws 27, but not by chance at the same points and usually to a lesser extent than the first transparent and colorless lacquer layer 21, indicated as cracks flaws 26 of the first transparent and colorless Lackz Anlagen 21 substantially bridged.
  • the transfer material 13 also has an optional adhesive layer 16 which, when transferred to the corresponding security paper or document of value, is activated by heat and pressure in the areas to be transferred to the corresponding metal layers 3, 4, 9 including the transparent and colorless lacquer layers 21 , 22 and the plastic layer 15 to secure on the security paper or document of value.
  • the carrier film 14 is peeled off.
  • the carrier film can be equipped by additional measures with good adhesion properties.
  • a security thread according to the invention is shown in cross-section.
  • the security thread 20 consists of a carrier film 25, for example a plastic film, on which a metal layer 3 is arranged, which has recesses 17.
  • the random distribution of the occurring defects 26, 27 of the three applied transparent and colorless coating layers 21, 22, 23 causes the defects of the respective lower layer are substantially bridged by the subsequent layer (s), so that a total closed surface which provides good protection against the ingress of aggressive media.
  • Fig. 4 shown security thread may be incorporated into the carrier film 25 or a separate, arranged between the carrier film 25 and the metal layer 3 plastic layer.
  • Fig. 5 shows a cross section through a further variant of a security paper or value document according to the invention.
  • security element is a plastic layer 5 can be seen, which has a diffraction structure 6.
  • Adjacent to these is a metal layer 3 is arranged, in turn, adjacent to a first transparent and colorless protective layer 21.
  • first transparent and colorless protective layer 21 Adjacent to these is a metal layer 3 is arranged, in turn, adjacent to a first transparent and colorless protective layer 21.
  • the banknote substrate 31 Adjacent to these is a metal layer 3 is arranged, in turn, adjacent to a first transparent and colorless protective layer 21.
  • the banknote substrate 31 Adjacent to these is a metal layer 3 is arranged, in turn, adjacent to a first transparent and colorless protective layer 21.
  • lacquer layers 23, 24 Between this and the adhesive layer 30, by means of which the layers of the security element are fastened to the document of value, here the banknote substrate 31, are two further lacquer layers 23, 24.

Landscapes

  • Laminated Bodies (AREA)
  • Credit Cards Or The Like (AREA)
  • Paper (AREA)
  • Materials For Medical Uses (AREA)

Claims (42)

  1. Elément de sécurité pour papiers de sûreté, billets de banque, cartes d'identité et autres pièces similaires, avec au moins une couche en matière plastique (5, 15, 25) sur laquelle au moins une couche métallique (3, 4, 9) est agencée, caractérisé en ce qu'au moins deux couches de vernis (21, 22, 23) sont superposées sur la couche métallique (3, 4, 9) et en ce que les couches de vernis (21, 22, 23) sont transparentes et incolores.
  2. Elément de sécurité selon la revendication 1, caractérisé en ce que les couches de vernis (21, 22, 23) sont réalisées à partir du même système de vernis.
  3. Elément de sécurité selon la revendication 2, caractérisé en ce que le système de vernis est sélectionné parmi un groupe se composant de vernis de polyuréthane, d'acrylates, de chlorures de polyvinyle et copolymères de chlorure de polyvinyle, de chlorures de polyvinylidène, de dispersions acryliques polyuréthanes.
  4. Elément de sécurité selon la revendication 1, caractérisé en ce que les couches de vernis (21, 22, 23) sont réalisées à partir de systèmes de vernis différents.
  5. Elément de sécurité selon la revendication 4, caractérisé en ce que les systèmes de vernis sont sélectionnés parmi un groupe se composant de vernis de polyuréthane, d'acrylates, de chlorures de polyvinyle et copolymères de chlorure de polyvinyle, de chlorures de polyvinylidène, de dispersions acryliques polyuréthanes et nitrocelluloses.
  6. Elément de sécurité selon une des revendications de 1 à 5, caractérisé en ce que les couches de vernis (21, 22, 23) se trouvent sur la couche métallique (3, 4, 9) en ayant un poids de revêtement d'environ 0,3 à 4,0 g/m2, de préférence d'environ 0,5 à 1,0 g/m2 par couche.
  7. Elément de sécurité selon la revendication 1, caractérisé en ce que les couches de vernis (21, 22) comprennent une première couche de vernis (21) qui est constituée par une couche de vernis à séchage physique appliquée sur la couche métallique, ainsi qu'une deuxième couche de vernis (22) qui consiste en une couche de vernis à durcissement par rayonnement.
  8. Elément de sécurité selon la revendication 7, caractérisé en ce que la couche de vernis à séchage physique est sélectionnée parmi un groupe se composant de systèmes de polyuréthane, d'acrylates et dispersions et émulsions réticulables aux UV.
  9. Elément de sécurité selon la revendication 7 ou 8, caractérisé en ce que la couche de vernis à séchage physique est constituée par une colle polyuréthane à deux composants à base de solvant.
  10. Elément de sécurité selon une des revendications de 7 à 9, caractérisé en ce que la couche de vernis à durcissement par rayonnement est constituée par une couche de vernis réticulant sous l'effet de rayonnement UV.
  11. Elément de sécurité selon une des revendications de 7 à 10, caractérisé en ce que la couche de vernis à durcissement par rayonnement est agencée directement sur la couche de vernis à séchage physique.
  12. Elément de sécurité selon une des revendications de 7 à 10, caractérisé en ce qu'au moins une couche de vernis supplémentaire (23) est appliquée entre la couche de vernis à durcissement par rayonnement et la couche de vernis à séchage physique.
  13. Elément de sécurité selon la revendication 12, caractérisé en ce que la couche de vernis (23) appliquée entre la couche de vernis à durcissement par rayonnement et la couche de vernis à séchage physique est constituée de colle polyuréthane à deux composants à base de solvant.
  14. Elément de sécurité selon une des revendications de 7 à 13, caractérisé en ce que la couche de vernis en vernis à séchage physique (21) est appliquée de telle manière sur la couche métallique qu'elle a un poids de revêtement d'environ 0,3 à 4,0 g/m2, de préférence d'environ 0,5 à 1,0 g/m2, et en ce que la couche de vernis (22) à durcissement par rayonnement est appliquée de telle manière qu'elle a un poids de revêtement d'environ 0,3 à 4,0 g/m2, de préférence d'environ 0,5 à 2,0 g/m2.
  15. Elément de sécurité selon une des revendications de 7 à 14, caractérisé en ce que la couche en matière plastique (5, 15) comporte des structures de surface à effet de diffraction optique.
  16. Elément de sécurité selon la revendication 15, caractérisé en ce que les structures de surface à effet de diffraction optique se présentent sous forme de structures de diffraction (6) en relief.
  17. Elément de sécurité selon une des revendications de 1 à 16, caractérisé en ce qu'au moins une des couches métalliques (3, 4, 9) présente des évidements (7, 8, 17) sous forme de signes, motifs, logos ou marques similaires.
  18. Elément de sécurité selon une des revendications de 1 à 17, caractérisé en ce que la couche en matière plastique (25) est un film en matière plastique autoportant.
  19. Elément de sécurité selon une des revendications de 1 à 18, caractérisé en ce que la couche en matière plastique (15) est agencée sur un matériau support (14).
  20. Elément de sécurité selon une des revendications de 1 à 19, caractérisé en ce que l'élément de sécurité est un élément de transfert (13).
  21. Elément de sécurité selon une des revendications de 1 à 19, caractérisé en ce que l'élément de sécurité est une étiquette autoportante.
  22. Elément de sécurité selon une des revendications de 1 à 21, caractérisé en ce que l'élément de sécurité présente des contours ronds, ovales, en étoile, rectangulaires, trapézoïdaux ou en rubans.
  23. Elément de sécurité selon une des revendications de 1 à 19, caractérisé en ce que l'élément de sécurité est un fil de sécurité (10, 20).
  24. Matériau de transfert pour la fabrication d'éléments de sécurité, qui comprend un matériau support (14) et au moins une couche en matière plastique (15) sur laquelle au moins une couche métallique (3, 4, 9) est agencée, caractérisé en ce qu'au moins deux couches de vernis (21, 22) sont superposées sur la couche métallique et en ce que les couches de vernis sont transparentes et incolores.
  25. Matériau de transfert selon la revendication 24, caractérisé en ce que la couche en matière plastique (15) comporte des structures de surface à effet de diffraction optique.
  26. Papier de sûreté pour la fabrication de documents de valeur, caractérisé en ce qu'il comprend au moins un élément de sécurité selon les revendications de 1 à 23.
  27. Papier de sûreté selon la revendication 26, caractérisé en ce que l'élément de sécurité est fil de sécurité (10) qui est encastré au moins partiellement dans le papier de sûreté.
  28. Papier de sûreté selon la revendication 26, caractérisé en ce que le papier de sûreté présente une ouverture continue, l'élément de sécurité étant agencé dans la zone de l'ouverture et empiétant de tous les côtés sur cette dernière.
  29. Papier de sûreté selon la revendication 26, caractérisé en ce que l'élément de sécurité est un élément de transfert (13) qui est appliqué sur la surface du papier de sûreté.
  30. Document de valeur, tel que billet de banque, carte d'identité, passeport ou autre pièce similaire, caractérisé en ce qu'il comprend au moins un élément de sécurité selon les revendications de 1 à 23.
  31. Procédé de fabrication d'un élément de sécurité pour papiers de sûreté, billets de banque, cartes d'identité, passeports ou autres pièces similaires, caractérisé par les étapes suivantes.
    a) mise à disposition d'une couche en matière plastique sous forme d'un film en matière plastique autoportant (25) ou d'un matériau support (14) sur lequel la couche en matière plastique (15) est agencée;
    b) application d'au moins une couche métallique (3, 4, 9) sur la couche en matière plastique;
    c) application d'une première couche de vernis transparente et incolore (21) sur la couche métallique;
    d) application d'au moins une couche de vernis supplémentaire transparente et incolore (22) sur la première couche de vernis.
  32. Procédé selon la revendication 31, caractérisé en ce que c'est le même système de vernis qui est utilisé pour l'application des couches de vernis (21, 22).
  33. Procédé selon la revendication 31, caractérisé en ce que ce sont différents systèmes de vernis qui sont utilisés pour l'application des couches de vernis (21, 22).
  34. Procédé selon la revendication 32 ou 33, caractérisé en ce que les couches de vernis (21, 22, 23) sont appliquées de telle manière qu'elles ont un poids de revêtement d'environ 0,3 à 4,0 g/m2, de préférence d'environ 0,5 à 1,0 g/m2 par couche.
  35. Procédé selon la revendication 31, caractérisé en ce que la première couche de vernis (21) est constituée par une couche de vernis à séchage physique et en ce que c'est une couche de vernis à durcissement par rayonnement qui est appliquée en tant que couche de vernis (22) supérieure.
  36. Procédé selon une des revendications de 31 à 35, caractérisé en ce que la couche de vernis précédente est séchée avant l'application d'une couche de vernis supplémentaire.
  37. Procédé selon une des revendications de 31 à 36, caractérisé en ce que la couche métallique (3, 4, 9) est appliquée par dépôt en phase vapeur à l'aide de masques.
  38. Procédé selon une des revendications de 31 à 37, caractérisé en ce que le film en matière plastique ou le matériau support sont mis à disposition sous forme d'un ruban sans fin et en ce que le procédé est exécuté de façon continue.
  39. Procédé selon une des revendications de 31 à 38, caractérisé en ce que l'application des couches de vernis (21, 22) a lieu par impression en creux, par enduction en rideau ou dans des machines à vernir.
  40. Procédé selon une des revendications de 31 à 39, caractérisé en ce qu'une structure de diffraction est gravée dans la couche en matière plastique avant l'étape b).
  41. Procédé selon une des revendications de 31 à 40, caractérisé en ce que la couche en matière plastique (25) est mise à disposition à l'étape a) sous forme d'un film en matière plastique sans fin pour constituer du matériau film qui, après l'étape d, est découpé en fils de sécurité de largeur prédéterminée.
  42. Procédé selon une des revendications de 31 à 40, caractérisé en ce que la couche en matière plastique (15) est agencée à l'étape a) sur un matériau support (14) spécialement conditionné pour constituer un matériau de transfert (13) qui, après l'étape d), est découpé en rubans de largeur prédéterminée.
EP04765177A 2003-09-19 2004-09-14 Element de securite et son procede de production Revoked EP1668606B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10343890A DE10343890A1 (de) 2003-09-19 2003-09-19 Sicherheitselement und Verfahren zur Herstellung desselben
PCT/EP2004/010263 WO2005034048A1 (fr) 2003-09-19 2004-09-14 Element de securite et son procede de production

Publications (2)

Publication Number Publication Date
EP1668606A1 EP1668606A1 (fr) 2006-06-14
EP1668606B1 true EP1668606B1 (fr) 2010-06-30

Family

ID=34398852

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04765177A Revoked EP1668606B1 (fr) 2003-09-19 2004-09-14 Element de securite et son procede de production

Country Status (4)

Country Link
EP (1) EP1668606B1 (fr)
AT (1) ATE472784T1 (fr)
DE (2) DE10343890A1 (fr)
WO (1) WO2005034048A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008013167A1 (de) 2008-03-07 2009-09-10 Giesecke & Devrient Gmbh Sicherheitselement und Verfahren zu seiner Herstellung
DE102016009024A1 (de) † 2016-07-25 2018-01-25 Giesecke+Devrient Currency Technology Gmbh Sicherheitspapier, Sicherheitselement und Wertdokument
GB2555491B (en) 2016-11-01 2019-03-27 De La Rue Int Ltd Security devices and methods of manufacture thereof

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4002979A1 (de) * 1990-02-01 1991-08-08 Gao Ges Automation Org Wertpapier mit optisch variablem sicherheitselement
DE4030493A1 (de) * 1990-09-26 1992-04-02 Gao Ges Automation Org Mehrschichtiger datentraeger und verfahren zu seiner herstellung
DE4313521C1 (de) * 1993-04-24 1994-06-16 Kurz Leonhard Fa Dekorationsschichtaufbau und dessen Verwendung
DE19928060A1 (de) * 1999-06-15 2000-12-21 Whd Elektron Prueftech Gmbh Optisch variables Sicherheitsmerkmal und Verfahren zu seiner Herstellung
US6638386B2 (en) * 2000-04-19 2003-10-28 Novavision, Inc. Method for making holographic foil
DE10111848A1 (de) * 2001-03-01 2002-09-12 Whd Elektron Prueftech Gmbh Sicherheitsmerkmale

Also Published As

Publication number Publication date
WO2005034048A1 (fr) 2005-04-14
EP1668606A1 (fr) 2006-06-14
DE10343890A1 (de) 2005-05-04
DE502004011340D1 (de) 2010-08-12
ATE472784T1 (de) 2010-07-15

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