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EP2639075B1 - Procédé de fabrication d'un document de valeur et document de valeur ainsi obtenu - Google Patents

Procédé de fabrication d'un document de valeur et document de valeur ainsi obtenu Download PDF

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Publication number
EP2639075B1
EP2639075B1 EP13000930.1A EP13000930A EP2639075B1 EP 2639075 B1 EP2639075 B1 EP 2639075B1 EP 13000930 A EP13000930 A EP 13000930A EP 2639075 B1 EP2639075 B1 EP 2639075B1
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EP
European Patent Office
Prior art keywords
radiation
layer
curing
coating composition
primer 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.)
Not-in-force
Application number
EP13000930.1A
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German (de)
English (en)
Other versions
EP2639075A1 (fr
Inventor
Peter Schiffmann
Klaus Habik
Daniela Otto
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 and Devrient GmbH
Original Assignee
Giesecke and Devrient GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Giesecke and Devrient GmbH filed Critical Giesecke and Devrient GmbH
Publication of EP2639075A1 publication Critical patent/EP2639075A1/fr
Application granted granted Critical
Publication of EP2639075B1 publication Critical patent/EP2639075B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M7/00—After-treatment of prints, e.g. heating, irradiating, setting of the ink, protection of the printed stock
    • B41M7/0045—After-treatment of prints, e.g. heating, irradiating, setting of the ink, protection of the printed stock using protective coatings or film forming compositions cured by mechanical wave energy, e.g. ultrasonics, cured by electromagnetic radiation or waves, e.g. ultraviolet radiation, electron beams, or cured by magnetic or electric fields, e.g. electric discharge, plasma
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M7/00—After-treatment of prints, e.g. heating, irradiating, setting of the ink, protection of the printed stock
    • B41M7/0081—After-treatment of prints, e.g. heating, irradiating, setting of the ink, protection of the printed stock using electromagnetic radiation or waves, e.g. ultraviolet radiation, electron beams
    • 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
    • B42D2033/04—

Definitions

  • the invention relates to a document of value, such as a banknote, a document of identification or a document, with a flat substrate, which is at least partially provided with a dirt-repellent coating in order to extend the service life and fitness for circulation.
  • the invention further relates to a method for producing such a value document.
  • Banknotes and other value documents are usually made of so-called security papers which have security elements or security features, such as a security thread partially introduced into the paper, a foil patch with diffraction structures or refractive structures, color shift effects or microoptical representation arrangements, or watermarks.
  • security papers which have security elements or security features, such as a security thread partially introduced into the paper, a foil patch with diffraction structures or refractive structures, color shift effects or microoptical representation arrangements, or watermarks.
  • the value documents are typically printed, often consuming print images are produced with technically demanding printing processes, such as intaglio.
  • documents of value, such as banknotes are also characterized by a character caused partly by the paper substrate, partly by its treatment (such as one-sided or two-sided calendering in the case of steel intaglio printing), namely its grip and flexural rigidity and the sound characteristic during deformation and wrinkling ,
  • banknotes During their circulation, value documents, such as banknotes, are exposed to heavy burdens of various kinds, which limit their orbital period.
  • the circulation period of a banknote depends essentially on its demand. Certain denominations are preferably used in commerce and thus have a shorter circulation time due to the greater exposure to environmental influences.
  • a cause for the restriction of Orbital period are mechanical stresses due to abrasion, folding or creasing.
  • the main cause of the limited circulation time of banknotes is their premature pollution. Since the paper used for banknotes is very porous, it has a large surface area and a high surface roughness. The surface roughness favors large amounts of dirt deposits compared to a smooth surface. Dirt can be liquid or solid, and liquid dirt in turn can be hydrophobic or hydrophilic.
  • banknotes Numerous attempts have been made to extend the life of banknotes. For example, it has been proposed to make banknotes entirely from a plastic substrate (see, for example, US Pat AU 488,652 ) or to provide the banknotes with protective coatings. However, it must be taken into account that the protective equipment may not cause any change in the characteristics typical of value documents (such as sound and grip), no impairment of the safety features and no harmful environmental influences.
  • a protective layer comprising at least two paint layers is in WO 2004/072378 disclosed.
  • the object of the present invention is therefore to provide a document of value which avoids the disadvantages of the prior art.
  • the value document should preferably have the following properties:
  • the radiation curing step takes place in particular by means of UV drying.
  • the radiation curing of the physically dried, radiation-curing primer layer and the radiation-curing composition-based second coating composition takes place in particular at the same time in order to achieve a very high physical and chemical resistance of the layer structure.
  • the hybrid paint of the first coating composition suitable for forming the primer layer comprises acrylates and / or polyester acrylates and / or urethane acrylates and / or polyester polyurethanes and / or polyether polyurethanes and / or acrylic-styrene polyurethanes.
  • the hybrid lacquer of the first coating composition suitable for forming the primer layer is based on an aqueous dispersion comprising acrylates and reactive monomers and / or reactive oligomers, in particular acrylates and photoinitiators.
  • the radiation-curable composition of the second coating composition suitable for forming the cover layer is a free-radically crosslinking UV varnish or a cationically crosslinking UV varnish.
  • the physically dried, radiation-curable primer layer may be provided, in part, with an additional UV-crosslinking print layer having indicia and / or patterns prior to applying the second coating composition suitable for forming the second cover layer.
  • the second coating composition applied to the substrate to form the cover layer may be partially provided with an additional UV-crosslinking print layer having indicia and / or patterns prior to the radiation curing step.
  • the cover layer may be provided with an additional, in particular UV-curing or oxidatively drying, print layer which has characters and / or patterns.
  • the inventive method can be performed according to a further preferred embodiment so that the flat substrate obtained has an optically variable anti-counterfeiting agent, which is provided on its surface for increasing the fouling resistance with a high-gloss paint, wherein the high-gloss paint has a layer thickness in a range of 0.7 to 1.5 microns, and the planar substrate is at least partially provided on its surface located outside the optically variable counterfeit securing means with the dirt-repellent coating having a primer layer and a cover layer.
  • a second aspect of the invention relates to a value document, such as a banknote, obtainable by the method according to the first aspect of the invention.
  • the primer layer can be colorless or transparent. However, the primer layer can also be colored, ie color components which are selected in particular from the group consisting of interference pigments, liquid crystal pigments, luminescent substances, IR-absorbing substances, organic and / or inorganic colored pigments or dyes.
  • the primer layer may be present over the entire surface or may be present partially, ie, in regions or in the form of a plurality of individual regions. In addition, it is possible the primer layer has both transparent and colored areas.
  • the cover layer may in particular be a UV lacquer or UV top lacquer or a UV-drying ink.
  • the cover layer may be transparent or colored, i. Contain color components which are selected in particular from the group consisting of interference pigments, liquid crystal pigments, luminescent substances, IR-absorbing substances, organic and / or inorganic colored pigments or dyes.
  • the cover layer can be present all over or partially, i. in regions or in the form of several individual areas. In addition, it is possible that the cover layer has both transparent and colored areas.
  • the cover layer may contain antistatic agents.
  • antistatic agents for example, the attraction of dust and the adhesion of hygienic contaminants can be avoided.
  • Suitable antistatic formulations for paints and varnishes are known in the art, see for example the DE 10 2006 045 869 A1 in which ionic liquids or solutions of salts in ionic liquids are used as antistatic agents.
  • antistatics based on ammonium salts which are especially dissolved in water and / or alcohol
  • antimony oxide or indium tin oxide coated mica from Merck can be used.
  • the provision of antistatics to the cover layer is advantageous in order to avoid the sticking or blocking of printed products, such as banknotes, caused by electrostatic charging.
  • the primer layer can be present in part and in particular be colored. It is preferred that the cover layer in this case is present over the entire surface and in particular is transparent.
  • the cover layer may be partially present and in particular colored. It is preferred that the primer layer in this case is present over the entire surface and in particular is transparent.
  • the soil-repellent coating is bilayered, with primarily the top layer, i. the cover layer, which protects the substrate from physical and chemical influences, while the lower layer (primer layer), i. the layer between the substrate and the cover layer, primarily makes contact with the substrate and, which is very important especially for very porous substrates whose pores closes.
  • the primer layer serves as an adhesion promoter between the substrate (which optionally has a color layer and / or film elements) and a layer arranged above the primer layer.
  • the primer layer has a barrier to liquids.
  • the invention is based on the recognition that the contamination resistance of a value document can be substantially improved by a protective combination coating which comprises two special crosslinked layers.
  • the crosslinking of the two layers at their common interface causes a high adhesion between the layers and thus a high abrasion resistance of the coating.
  • both surfaces of the planar substrate are provided with such a coating, wherein the coatings on the two surfaces may be the same or different.
  • Cover advantageously The coatings, the surfaces also in each case over the entire surface, wherein it is of course also possible in principle to coat the substrates on only one surface and / or only part of the surface.
  • a radiation-curing lacquer in particular a UV-crosslinking lacquer, is used for the upper coating layer or covering layer.
  • Radiation-curing paints and in particular UV-crosslinking paints are characterized by high physical and chemical resistance and are very abrasion-resistant.
  • radiation-curing lacquers, in particular UV lacquers also offer a multitude of options for specifically influencing the feel of a security paper. The adjustment of the parameters brittleness, gloss and smoothness of the top layer allows in a variety of ways to directly influence the haptic properties of the coated paper, in particular its smoothness and sound.
  • radiation-curing lacquers can also be used in particular for porous security papers if the porosity-causing depressions, unevennesses and pores of such substrates are at least partly or even completely closed before the application of the radiation-curing lacquer layer, in particular by a lower coating layer, namely the primer layer.
  • the lower coating layer or primer layer is formed on the basis of a hybrid system.
  • hybrid systems is understood in this document to include coatings which contain both physically drying constituents and radiation-curing constituents. "Physically drying” means that the drying takes place by evaporation and / or displacement of the solvent or dispersion medium into the substrate. Particularly preferred are water-based dispersion paints.
  • suitable primer compositions are compositions based on acrylates, polyester acrylates, urethane acrylates, polyester polyurethanes, polyether polyurethanes and acrylic styrene polyurethanes.
  • a hybrid paint When drying a hybrid paint is only physically, for example by heat, preferably by infrared radiation and / or hot air, the solvent or the dispersion medium, for example water, removed and then cured by radiation of a suitable wavelength of the radiation-curing paint portion.
  • aqueous dispersions which contain acrylates and reactive monomers and / or reactive oligomers, in particular acrylates and photoinitiators.
  • the aqueous primer layer may optionally contain crosslinking agent, e.g. Aziridine, included.
  • Suitable compositions for the lower coating layer are explained in more detail below with reference to two example formulations. Both are water-based coatings with UV-reactive components.
  • the crosslinker is added just prior to processing the coating composition.
  • the ingredients may vary in their proportions. This applies in particular to the binder and the water content.
  • the upper coating layer i. the outer layer is preferably formed from (in particular anhydrous) coating systems which crosslink by irradiation with ultraviolet light (UV light).
  • UV light ultraviolet light
  • Radical crosslinking UV lacquers are preferably suitable.
  • Free-radically crosslinking compositions are based, for example, on acrylic acid esters. It will be understood that suitable photoinitiators must be included in each case and that the compositions may contain the usual adjuvants known to those skilled in the art.
  • the cover layer additionally comprises silicone resins and / or waxes for improving the dirt-repellent properties.
  • a suitable composition for the upper coating layer (covering layer) is explained in more detail below with reference to an example recipe. It is a radically curing UV varnish.
  • the degree of gloss and the elasticity of the components may vary in their proportions and quality.
  • the cover layer can also be formed by a hybrid system, wherein in principle similar hybrid systems are used, which were mentioned above for the primer layer. While the proportion of physically drying constituents should predominate for the primer layer, the proportion of radiation-curing constituents should predominate in the hybrid systems for the cover layer. Particularly preferred for the production of the cover layer is a preparation of reactive synthetic resins, which contains substantially different acrylates.
  • all coating compositions may contain the usual auxiliaries.
  • auxiliaries are, for example, coalescing agents, leveling agents, wetting agents, defoaming agents, viscosity modifiers, dispersing aids and diluents.
  • visually unrecognizable feature substances such as for example luminescent substances, can be contained in the compositions.
  • the coating composition suitable for producing the primer layer is first physically dried (without crosslinking of the radiation-curing constituents contained therein) before the coating composition suitable for producing the cover layer is applied.
  • a hot air blower and / or an infrared radiator can be provided.
  • the printing layer in particular having characters and / or patterns, can be applied to a dye-receiving layer, with the ink-accepting layer being above the substrate and below the lower layer (primer layer).
  • Providing a dye-accepting layer is particularly expedient when the substrate is a plastic substrate.
  • the primer layer (in particular the physically dried, radiation-curing primer layer) may be provided in part with a further print layer having characters and / or patterns, in particular a UV-crosslinking print layer, prior to the application of the cover layer.
  • a UV-crosslinking print layer For example, a UV-drying code (eg the serial number of a value document) is suitable.
  • the radiation-curing composition suitable for the production of the cover layer is applied.
  • the primer layer, the UV-crosslinking print layer and the cover layer are then dried or crosslinked by means of UV radiation. All three layers are crosslinked with each other (in the sense of crosslinking at the interface between two different layers), so that an excellent adhesion is achieved with each other.
  • the said further printing layer which has characters and / or patterns, in particular a UV-crosslinking printing layer, can be applied only after the application of the physically dried, radiation-curing primer layer and after application of those suitable for the production of the cover layer radiation-curing composition as the top layer to be applied to the substrate.
  • the primer layer, the cover layer and the UV-crosslinking printing layer are then dried or crosslinked by means of UV radiation. All three layers are crosslinked with each other (in the sense of crosslinking at the interface between two different layers), so that an excellent adhesion is achieved with each other.
  • This variant is particularly suitable for equipping value documents with a consecutive number sequence.
  • the uppermost printing layer can be applied only in a second process step and dried or crosslinked separately.
  • the soil-repellent coating is preferably transparent and colorless, especially if a printed substrate remain as visible as possible should.
  • the primer layer and / or the cover layer can be provided with a color tint, with a matting or with other functions.
  • the coating compositions for the primer layer and for the cover layer in a layer thickness or thickness in a range of 1.0 to 4.0 microns per single coating on the substrate.
  • the preferred wet film layer thickness for the primer layer is in a range of 1.3 to 4.0 ⁇ m.
  • the layer thickness should be adapted to the respective substrate quality (namely the roughness of the respective substrate side).
  • the layer thickness should be sufficient to at least substantially close the irregular depressions and pores in the case of porous substrates.
  • the preferred wet film layer thickness for the cover layer is in a range of 1.5 to 3.0 ⁇ m.
  • the coating compositions for the primer layer and for the topcoat may each be applied to the substrate by the flexographic printing process.
  • the coating thickness is controlled, inter alia, via the theoretical scoop volume of the raster or anilox roll.
  • the transfer behavior ie the amount of lacquer transferred, is furthermore dependent on the surface tension of the lacquer, the capillary forces of the substrate, the surface tension of the printing plate or the blanket and the rheological properties (eg viscosity, elasticity) of the lacquers during application.
  • Suitable coating compositions for preparing the primer layer which are water-based and include UV-reactive components, preferably have a viscosity of from 25 to 150 seconds (more preferably from 40 to 90 seconds) as measured with DIN 4 Cup beakers at 20 ° C.
  • Suitable coating compositions for the preparation of the cover layer which are UV-drying, preferably have a viscosity of 30 to 150 seconds, measured with DIN 4 cup cup at 20 ° C.
  • the value-document substrate does not necessarily have the entire surface, but can also be partially (ie partially) provided on one or both surfaces with the dirt-repellent, two-layer coating. This procedure is particularly suitable if the document of value has certain, optically variable counterfeit protection means which should not be provided with such a dirt-repellent coating as a result of a possible impairment of the optical effect.
  • Such anti-counterfeiting means include, among other things, security elements with a microoptical representation arrangement with microstructures and microimage elements for enlarged reproduction of the microstructures, for example microlens or micro hollow mirror arrays. Security features based on micro-optical representations are eg off EP 0 238 043 A2 . DE 36 09 090 A1 .
  • the optically variable anti-counterfeiting device can be in the form of a security strip, a security thread or in the form of a label or patch, for example, and can be visually recognizable to the viewer completely or only in regions.
  • An example of an only partially visually recognizable tamper-evident means is a window security thread (eg a microlens thread), which emerges in window areas on the surface of a banknote, while in the intervening web areas is embedded in the interior of the banknote (see for example the Fig. 1 of the WO 2004/097112 A1 ).
  • the document of value only with the dirt-repellent, two-layer coating on which no optically variable anti-counterfeiting agent is arranged, and to provide the optically variable anti-counterfeiting agent with a thin, special high-gloss lacquer which enhances the optical effect of the anti-fouling agent Anti-counterfeiting, especially the light / dark contrast, the sharpness and the magnification and movement effect, not recognizable deteriorated.
  • the special high-gloss lacquer for example, a radiation-curing lacquer which is highly cross-linked after crosslinking in a small layer thickness of 0.7 to 2 ⁇ m, preferably 0.7 to 1.5 ⁇ m, is suitable.
  • Such a varnish can be obtained from a UV-crosslinking varnish which contains no dulling agents and, as a result of its varnish composition, has only a very slight scattering after drying and thus only a very slight dulling.
  • the high-gloss lacquer can in particular be based on mixtures of mono- and / or difunctional monomeric acrylates, prepolymeric acrylates, and tri- and / or tetrafunctional monomeric acrylates.
  • prepolymeric acrylates for example, polyester acrylates, urethane acrylates, acrylic acrylates and / or methacrylacrylates, oligoester acrylates, epoxy acrylates, and / or mixtures of two or more of these prepolymeric acrylates can be used.
  • An example of the composition of a high gloss paint is listed below:
  • polyester acrylate prepolymer (“Laromer PE 55 F” from BASF) 10% by weight of trimethylolpropane triacrylate (“Laromer TMPTA” from BASF) 20% by weight of hexanediol diacrylate (“Laromer HDDA “of BASF) 5% by weight of photoinitiator (“Darocure 1173” from CIBA) 3% by weight of reactive amine additive for accelerating UV curing (“Ebecryl P 115”) 0.5% by weight of defoamer (“Coatosil”) )
  • the high gloss lacquer can be applied as a spot coating in the flexo, offset or high pressure process. It is preferred to adjust the viscosity of the high-gloss lacquer in a range of 30 to 150 sec, in particular 30 to 80 sec, flow time according to DIN 4 CUP cup at 20 ° C.
  • Banknote papers are typically made from fibers of annual plants, especially cotton fibers or pulp fibers. It is also possible to use papers which partly comprise plastic fibers, preferably polyamide fibers or polyester fibers.
  • a valuable document substrate is also a polymer substrate (or plastic substrate), which has a suitable ink receiving layer. More preferably, a cotton paper is used as the substrate.
  • the basis weight of the substrate varies depending on the application form. Typical basis weights are in the range of 50 g / m 2 to 100 g / m 2 , preferably in the range of 60 g / m 2 to 90 g / m 2 , more preferably about 70 g / m 2 .
  • the individual paper layers may consist of the same or different types of paper.
  • a paper layer may be a pure cotton paper, while another paper layer may comprise plastic fibers.
  • multi-ply paper / film composites such as a paper / film / paper composite or a film / paper / film composite can also be used as the substrate.
  • the production preferably takes place by means of a rotary screening machine.
  • Fig. 1a shows a document of value substrate 1 (in the example paper, preferably cotton paper) with a pressure applied to a substrate surface 2 in the form of characters and / or patterns.
  • the substrate 1 provided with a printing layer 2 is first subjected to the water-based coating composition described above in "Example A" 3, which is suitable for the production of a primer layer, applied in flexographic printing process (see Fig. 1b ).
  • Fig. 1c shows the layer structure of Fig. 1b after physical drying by hot air.
  • the water content of the water-based coating composition 3 evaporates and is partially absorbed by the porous substrate 1, so that the film thickness of the physically dried radiation-curing primer layer 4 is significantly reduced.
  • the UV-drying topcoat 5 described above in “Example C” is applied (see Fig. 1d ).
  • Fig. 1e shows the layer structure of Fig. 1d after a UV-drying. Since the UV-drying topcoat 5 is a so-called "100% system" (ie, 100% solids content), only a very small reduction in the layer thickness occurs during UV crosslinking. The UV-reactive components of the physically dried, radiation-curing primer layer 4 are crosslinked simultaneously with the UV-drying topcoat 5, so that a radiation-cured primer layer 41 and a radiation-cured cover layer 51 are formed, which are crosslinked at their common interface via radiation-cured groups.
  • Fig. 2 shows a schematic representation of a value document 6 (in the present case, a banknote), which is provided with an embedded window security thread 7 and a glued patch-shaped security element 8.
  • the value document 6 also has the denomination "100" in the form of a watermark.
  • the window security thread 7 in the present case a microlens thread
  • the security element 8 im
  • a micro-optical representation arrangement with microstructures and micro-cavity mirror arrays for enlarged imaging of the microstructures give the viewer a different image impression at different viewing angles.
  • the windowed security thread 7 shown in dashed lines emerges at the window areas 9 on the surface of the value document 6, while it is embedded in the interior of the value document 6 at the intervening web areas.
  • the patch-shaped security element 8 and the window security thread 7 are each provided with a visibility of the optically variable effect substantially not influencing, pollution-resistant high-gloss paint.
  • the high-gloss lacquer is a UV lacquer based on the "Example D" composition described above and is applied to the value document by flexographic printing or offset printing in areas 10 and II.
  • the high-gloss lacquer is not applied register-accurate above the counterfeit protection means 7 and 8, but the lacquer also covers adjacent parts of the value document surrounding the counterfeit security means 7 and 8 and so to say edge regions for the tamper-evident 7 and 8 form.
  • the layer thickness of the high-gloss lacquer in the present example is 1.5 ⁇ m.
  • the value document 6 is partially provided outside of the anti-counterfeiting means 7 and 8 surrounding areas II and 10 with the dirt-repellent, two-layer coating 11.
  • the coating 11 consists of the in Fig. 1e layers 41 and 51 shown.

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Claims (7)

  1. Procédé de fabrication d'un document de valeur (6) tel qu'un billet de banque, comprenant un substrat plan (1) qui est au moins partiellement pourvu d'un revêtement résistant aux salissures qui comporte une couche d'apprêt et une couche de recouvrement, le procédé incluant les étapes suivantes:
    a) mise à disposition d'un substrat plan (1) ayant une première surface de substrat et une deuxième surface de substrat;
    b) impression de caractères et/ou de motifs (2) sur au moins une surface de substrat;
    c) application d'une première composition de revêtement (3) adaptée à la génération de la couche d'apprêt sur la surface de substrat imprimée, la première composition de revêtement (3) étant basée sur un vernis hybride qui contient tant des composants à séchage physique que des composants durcissables par rayonnement;
    d) séchage physique de la première composition de revêtement (3) et formation d'une couche d'apprêt (4) séchée physiquement et durcissable par rayonnement;
    e) application d'une deuxième composition de revêtement (5) adaptée à la génération de la couche de recouvrement sur la couche d'apprêt (4) séchée physiquement et durcissable par rayonnement, la deuxième composition de revêtement (5) étant basée sur une composition durcissable par rayonnement;
    f) durcissement par rayonnement de la couche d'apprêt (4) séchée physiquement et durcissable par rayonnement et de la deuxième composition de revêtement (5) basée sur une composition durcissable par rayonnement, de telle sorte qu'une couche d'apprêt (41) durcie par rayonnement et une couche de recouvrement (51) durcie par rayonnement sont réalisées et que les deux couches sont, à leur surface limite commune, par l'intermédiaire de groupes durcis par rayonnement, réticulées l'une à l'autre.
  2. Procédé selon la revendication 1, la composition durcissable par rayonnement de la deuxième composition de revêtement adaptée à la génération de la couche de recouvrement étant un vernis UV à réticulation cationique ou un vernis UV à réticulation radicalaire.
  3. Procédé selon une des revendications 1 ou 2, la couche d'apprêt séchée physiquement et durcissable par rayonnement étant, avant l'application d'une deuxième composition de revêtement adaptée à la génération de la couche de recouvrement, pourvue partiellement d'une couche d'impression supplémentaire à réticulation UV qui comporte des caractères et/ou des motifs.
  4. Procédé selon une des revendications 1 ou 2, la deuxième composition de revêtement appliquée sur le substrat pour la génération de la couche de recouvrement étant, avant l'étape du durcissement par rayonnement, pourvue partiellement d'une couche d'impression supplémentaire à réticulation UV qui comporte des caractères et/ou des motifs.
  5. Procédé selon une des revendications 1 ou 2, la couche de recouvrement étant, après l'étape du durcissement par rayonnement, pourvue d'une couche d'impression supplémentaire, notamment à réticulation UV, qui comporte des caractères et/ou des motifs.
  6. Procédé selon une des revendications de 1 à 5, le procédé étant effectué de telle manière que
    le substrat plan (1) obtenu comporte un moyen anti-falsification optiquement variable qui, sur sa surface, pour accroître la résistance à l'encrassement, est pourvu d'un vernis brillant,
    le vernis brillant présente une épaisseur de couche se situant entre 0,7 et 1,5 µm, et
    le substrat plan est, sur sa surface se trouvant à l'extérieur du moyen anti-falsification optiquement variable, pourvu au moins partiellement du revêtement résistant aux salissures qui comporte une couche d'apprêt et une couche de recouvrement.
  7. Document de valeur (6), tel qu'un billet de banque, pouvant être obtenu par le procédé selon une des revendications de 1 à 6, comprenant un substrat plan (1) qui est au moins partiellement pourvu d'un revêtement résistant aux salissures comportant une couche d'apprêt et une couche de recouvrement,
    le document de valeur incluant ce qui suit:
    a) un substrat plan (1) ayant une première surface de substrat et une deuxième surface de substrat;
    b) des caractères et/ou des motifs (2) étant imprimés au moins sur une surface de substrat;
    c) une couche d'apprêt séchée physiquement et durcie par rayonnement formée à partir d'une première composition de revêtement basée sur un vernis hybride sur la surface du substrat imprimée, la première composition de revêtement contenant tant des composants à séchage physique que des composants durcissables par rayonnement;
    e) une couche de recouvrement durcie par rayonnement formée à partir d'une deuxième composition de revêtement sur la couche d'apprêt séchée physiquement et durcie par rayonnement, la deuxième composition de revêtement étant basée sur une composition durcissable par rayonnement;
    f) la couche d'apprêt durcie par rayonnement et la couche de recouvrement durcie par rayonnement étant, à leur surface limite commune, par l'intermédiaire de groupes durcis par rayonnement, réticulées l'une à l'autre.
EP13000930.1A 2012-03-01 2013-02-25 Procédé de fabrication d'un document de valeur et document de valeur ainsi obtenu Not-in-force EP2639075B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102012004195A DE102012004195A1 (de) 2012-03-01 2012-03-01 Verfahren zum Herstellen eines Wertdokuments und daraus erhältliches Wertdokument

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EP2639075A1 EP2639075A1 (fr) 2013-09-18
EP2639075B1 true EP2639075B1 (fr) 2015-01-14

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109863035B (zh) 2016-05-11 2021-05-11 尼纳有限公司 具有增强的箔耐久性的安全文件
DE102019114277A1 (de) * 2019-05-28 2020-12-03 Schmid Rhyner Ag Verfahren zur Lackierung von Substraten sowie lackierte Substrate
WO2021052630A1 (fr) * 2019-09-20 2021-03-25 Giesecke+Devrient Currency Technology Gmbh Procédé de fabrication d'un élément de sécurité et élément de sécurité

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU488652B2 (en) 1973-09-26 1976-04-01 Commonwealth Scientific And Industrial Research Organisation Improvements in or relating to security tokens
DE3609090A1 (de) 1986-03-18 1987-09-24 Gao Ges Automation Org Wertpapier mit darin eingelagertem sicherheitsfaden und verfahren zur herstellung derselben
DE10327083A1 (de) * 2003-02-11 2004-08-19 Giesecke & Devrient Gmbh Sicherheitspapier und Verfahren zur Herstellung desselben
DE10319232A1 (de) 2003-04-28 2004-11-18 Giesecke & Devrient Gmbh Flächiges Sicherheitselement und Herstellungsverfahren für dasselbe
DE102005028162A1 (de) 2005-02-18 2006-12-28 Giesecke & Devrient Gmbh Sicherheitselement und Verfahren zu seiner Herstellung
DE102006045869A1 (de) 2006-09-28 2008-04-03 Evonik Goldschmidt Gmbh Antistatika für Beschichtungsstoffe, Druckfarben und Drucklacke
EP2159069A1 (fr) * 2008-08-29 2010-03-03 Kba-Giori S.A. Procédé de vernissage de documents de sécurité, spécialement des documents de sécurité imprimés en creux tels que des billets de banque, et machine de vernissage pour l'effectuer
DE102008058397A1 (de) * 2008-11-21 2010-05-27 Giesecke & Devrient Gmbh Wertdokument mit matten und glänzenden Oberflächenbereichen und Verfahren zu seiner Herstellung
DE102010047250A1 (de) 2009-12-04 2011-06-09 Giesecke & Devrient Gmbh Sicherheitselement, Wertdokument mit einem solchen Sicherheitselement sowie Herstellungsverfahren eines Sicherheitselementes
DE102010003437B4 (de) * 2010-03-30 2012-02-09 Pfleiderer Holzwerkstoffe Gmbh Verbundmaterial und Verfahren zu dessen Herstellung

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DE102012004195A1 (de) 2013-09-05

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