EP4037913B1 - Procédé de production d'un papier de sécurité et papier de sécurité pouvant être obtenu par ledit procédé - Google Patents

Procédé de production d'un papier de sécurité et papier de sécurité pouvant être obtenu par ledit procédé Download PDF

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Publication number
EP4037913B1
EP4037913B1 EP20786454.7A EP20786454A EP4037913B1 EP 4037913 B1 EP4037913 B1 EP 4037913B1 EP 20786454 A EP20786454 A EP 20786454A EP 4037913 B1 EP4037913 B1 EP 4037913B1
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EP
European Patent Office
Prior art keywords
coating
stabilizing
substrate
transfer element
surface portions
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP20786454.7A
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German (de)
English (en)
Other versions
EP4037913A1 (fr
Inventor
Matthias Pfeiffer
Christoph Mengel
Astrid DREXLER
Stefan Bichlmeier
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 Currency Technology GmbH
Original Assignee
Giesecke and Devrient Currency Technology GmbH
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Publication of EP4037913A1 publication Critical patent/EP4037913A1/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/20—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof characterised by a particular use or purpose
    • B42D25/29—Securities; Bank notes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/30—Identification or security features, e.g. for preventing forgery
    • B42D25/351—Translucent or partly translucent parts, e.g. windows
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/30—Identification or security features, e.g. for preventing forgery
    • B42D25/36—Identification or security features, e.g. for preventing forgery comprising special materials
    • 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
    • B42D25/364—Liquid crystals
    • 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
    • B42D25/369—Magnetised or magnetisable 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
    • B42D25/382—Special inks absorbing or reflecting infrared light
    • 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
    • B42D25/387—Special inks absorbing or reflecting ultraviolet light
    • 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
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H19/00—Coated paper; Coating material
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
    • D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
    • D21H21/40—Agents facilitating proof of genuineness or preventing fraudulent alteration, e.g. for security paper

Definitions

  • the invention relates to a method for producing a security paper, which has the following steps: providing a flat substrate that has a front and a back, applying a transfer element to the front, which is delimited by at least one edge, and applying a stabilizing coating the back in a section of the substrate that covers the transfer element in top view.
  • the invention further relates to a security paper which has: a flat substrate with a front and a back, a transfer element on the front which is delimited by at least one edge, and a stabilizing coating on the back in a section of the substrate which is the Transfer element covered in top view.
  • the WO 2011/015622 A1 describes a generic method for producing a security paper and a security paper.
  • the EP 1727684 B2 discloses a security and/or value document.
  • the WO 2004/024464 A1 concerns a reinforced security document. From the EP 2411232 B1 and the EP 2860040 B1 Other security elements and manufacturing processes are known for this.
  • WO 2015/085438 A1 shows a security document with a foil security element and reinforcement on the back.
  • WO 2005/095118A2 relates to a security document with a window, which has a film security element on the front and a seal on the back.
  • WO 2013/075811 A2 describes a device for providing a substrate with a film security element on both sides.
  • the invention is based on the object of improving a substrate paper when a transfer element is provided. This applies in particular with regard to anti-counterfeiting and processability.
  • a flat substrate In the manufacturing process, a flat substrate is provided.
  • the substrate has a front and a back.
  • the terms “front” and “back” serve here only to differentiate and are not intended to imply a preference for one of the two main sides of the substrate.
  • a transfer element is applied to the front of the substrate.
  • the transfer element has at least one edge which lies within the longitudinal extent of the substrate, i.e. does not coincide with an edge of the substrate.
  • a stabilizing layer is applied to the opposite back.
  • the stabilizing coating is applied to the back in a section of the substrate in such a way that it covers the transfer element in the top view of the substrate.
  • the section of the substrate thus also covers the transfer element, in particular its edge.
  • the section also has at least two surface sections. On these two surface sections, the stabilizing coating is designed in different ways, namely with different coating materials. The stabilizing coating therefore has a different perceptible or measurable appearance on the two surface sections from the back.
  • the term “appearance” refers to how the stabilizing coating can be perceived by the viewer from the back can be measured by machine, in particular machine readable. Perception should occur optically, that is, through observation. The noticeable difference is in the visible spectrum and is clear enough to be noticed by the viewer. The different appearance can alternatively or additionally be measurable by machine. The difference is preferably machine-readable or more preferably only machine-readable (i.e. not perceptible). The measurable difference is adapted to be automatically measured by a machine (machine readable). For example, different infrared properties, magnetic properties, etc. of the stabilization coating can be measured automatically.
  • the stabilization layer improves the processability and flatness of the security substrate obtained in this way with subsequent processes, especially in intaglio printing. This is surprising in that it initially appears counterproductive to create an additional thickening through the stabilization coating in the area of the transfer element, which already results in a thickening of the substrate. Nevertheless, it has surprisingly been found that the stabilization coating improves the flatness and processability of the substrate paper.
  • the stabilizing coating preferably extends - seen in a top view of the flat substrate - to the edge of the transfer element and can in particular cover it. Optionally, it is not applied to the entire surface of the back of the substrate, for example it delimits an inner part of the transfer element in a top view. However, the stabilizing coating is preferably provided over the entire surface of the two surface sections of the substrate.
  • the transfer element in such a way that (only) one strip on both sides of the edge is covered.
  • the transfer element is designed as an elongated strip that extends over a longitudinal extent of the security substrate, the transfer element consequently only has two edges within the relevant section of the substrate.
  • the stabilizing coating can then have the form of two strips, each of which covers an edge.
  • the transfer element is designed as a so-called “patch”, the stabilizing coating can be designed in the shape of a frame, with the frame width and dimensions being chosen so that the edge of the patch is covered. In other embodiments, the stabilization coating completely covers the transfer element and is made slightly larger so that a strip beyond the edge of the transfer element is also covered.
  • the stabilizing coating does not cover the entire back of the substrate, but only protrudes beyond the edge of the transfer element by the strip already mentioned at the beginning.
  • the width of this projection is preferably not more than 10 mm, particularly preferably not more than 5 mm, very particularly preferably in the range between 2 mm and 4 mm.
  • the surface sections of the substrate have the stabilizing coating due to printing or coating with the different coating materials.
  • the stabilizing coating is therefore applied by printing or coating.
  • coatings that differ in appearance but have the same stabilizing effect are preferably applied to the two surface sections.
  • the stabilizing coating has at least a first coating section and at least a second coating section.
  • the first coating section lies in the first surface section and the second coating section lies in the second surface section.
  • a plurality of first and second coating sections can lie in the first and/or the second surface section.
  • the first and second coating sections differ in their appearance, for example in the perceived color.
  • the first and second coating sections have the same stabilizing effect, i.e. in particular also the same layer thickness.
  • the coating sections in their surface section are preferably spaced apart from one another and alternatively applied adjacent to one another.
  • coating sections of the first surface section are preferably applied at a distance from coating sections of the second surface section.
  • the coating sections are preferably applied over the entire surface.
  • the coating is then continuous in the coating sections.
  • Coating sections applied to partial areas are conceivable.
  • a grid or a network could be used as a partial coating section.
  • the surface coverage of the coating in the partial coating sections will be greater than 30%, preferably greater than 50%, but less than 75%.
  • the relative area coverage of the stabilizing coating on the substrate it is above 50%, preferably above of 66% and more preferably above 75% and in each of the cases more preferably below 98%.
  • the coating sections are preferably formed over the entire surface. If all full-surface coating sections are arranged without any gaps, there is 100% relative surface coverage. In preferred embodiments with the aforementioned surface coverage, the coating sections are formed over the entire surface and spaced apart from one another.
  • varnishes especially UV-curing varnishes
  • water-based paint systems are possible.
  • the stabilizing coating is a non-self-supporting (support-free) layer. In contrast to a film-based transfer element, it cannot, for example, span a window in the substrate.
  • the stabilization coating means that deformation of the substrate paper, for example the formation of grooves or bulging, is significantly reduced or prevented, particularly during further moistening processing, as is carried out in intaglio printing.
  • the stabilizing coating affects the substrate paper in the sheet during further processing of the sheet. However, it also improves the flatness of the individual banknote, thus improving its further processing or handling, for example in banknote checking devices, banknote sorting devices or banknote counting devices. This is the first effect of the stabilization coating.
  • the stabilization coating with at least two distinguishable surface sections increases the barrier to counterfeiting, since additional security features are applied to the substrate with the help of the respective surface sections of the stabilization coating.
  • the substrate only optionally has no opening in the section, i.e. it is continuous and the front and back are uninterrupted in this area.
  • the stabilizing coating has the property known in the prior art that the processability of the substrate is not impaired by the transfer element, e.g. with regard to flatness, etc.
  • the stabilizing coating has a uniform layer thickness, in particular since it is intended to have a uniform stabilizing effect.
  • the stabilizing coating, the surface sections and/or the coating sections can have an independent surface shape.
  • the independent surface shape can be designed as a pattern, symbol or symbol. A surface shape is considered independent if it does not correspond to the surface shape of the transfer element - possibly minus an optional window.
  • the stabilization coating itself can, for example, have a different surface shape (oval, circular, symbol-like, ...) than the transfer element (rectangular, oval, circular, ).
  • the approximate size and surface shape of the stabilizing coating is partially determined by the transfer element.
  • the selection of the surface shape is much more flexible when it comes to the surface sections and/or the coating sections. These can be selected independently of the transfer element.
  • coating sections with a constant, independent surface shape could also be used for different transfer elements.
  • At least one of the two different coating materials can comprise an additive which has the corresponding perceptible effect or machine-readable appearance.
  • the stabilizing coating comprises a first additive on the first surface sections and a second additive on the second surface sections.
  • the stabilizing coating can contain the same ingredients on both surface sections - apart from noticeable or machine-readable additives.
  • the different appearance of the stabilizing coating on the two surface sections of the substrate is preferably created by different additives.
  • the additives are perceptible to the viewer or recognizable by machine.
  • Particularly suitable additives are: colorants, such as dyes or color pigments; optically variable pigments, such as interference layer pigments or liquid crystal pigments; magnetically alignable (optionally optically variable) pigments; luminescent substances that, for example, emit in the same area or a different area after excitation in the UV/IR or VIS range; invisible additives, in particular additives that can only be detected in the UV or IR range, magnetic additives or conductivity-increasing additives.
  • Such additives are well known in themselves.
  • the stabilizing coating is preferably uniformly formed on the two surface sections (or in their coating sections) - apart from the additives. It includes the same ingredients on both surface sections (or in its coating sections) and thus the same stabilizing effect.
  • the additives are particularly preferably of the same type of additive.
  • At least one surface section is printed with optically variable and/or luminescent coating materials.
  • at least one of the surface sections is photochromically and/or thermochromically coated. All of these design options for the surface sections of the stabilizing coating increase the number of security features of the substrate, which can further raise the barrier to counterfeiting.
  • Each substrate can contain one or more of the additives mentioned in a surface section of the stabilizing coating. Different colorants are preferably used as additives on the two surface sections or different photochromic or thermochromic additives are used on the two surface sections. Alternatively, a colorant can be present on the first surface section and a photochromic or thermochromic additive can be present on the second surface section.
  • the stabilizing coating preferably has an opaque surface with at least 80% - preferably 100% - area coverage. It is preferably precisely registered to the transfer element.
  • machine differentiation is made based on different IR substances (filtering or absorbing a given IR wavelength) or UV substances (a given UV wavelength filtering or absorbing), different magnetization or different conductivities provided on the surface sections.
  • the surface sections (or the coating sections) can be arranged - for example alternately - in such a way that a machine-recognizable coding is created, in particular an IR code, a magnetic code or a conductivity code.
  • the transfer element can have its own carrier layer, in particular carrier film.
  • the transfer element is carrier-free, i.e. does not have its own carrier layer, such as carrier film.
  • the transfer element - with or without its own carrier film - is transferred as an element from an intermediate carrier to the substrate when it is applied to the substrate.
  • the substrate is designed so that it has a window (or an opening).
  • the transfer element spans the window. This feature also contributes to stabilization and to increasing the barrier to counterfeiting.
  • the coating can be applied before or after the window is introduced into the substrate.
  • At least one further printing element is applied to another location on the substrate in the same printing cycle with the stabilizing coating. This adds additional security features to the substrate and also makes it possible to speed up the production process of the substrate. It should be noted that a printing element under or over a stabilization layer does not form a distinguishable stabilization coating.
  • the stabilizing coating improves the mechanical properties, such as tensile strength and/or flexural rigidity, of the security paper in the section.
  • the tensile strength and/or the bending strength of the security paper in the section is preferably increased by at least 2%, preferably at least 4%, more preferably at least 5% by the stabilizing coating. In particular, the increase is a maximum of 50%, usually less than 25%.
  • the security paper with substrate and transfer element is measured before and after the stabilization coating is applied.
  • the tensile strength and/or the flexural strength of the stabilizing coating is in the range from 25% to 150%, preferably 33% to 99%, more preferably 33% to 75% of the tensile strength or flexural strength of the transfer element.
  • the mechanical property, such as tensile strength and/or flexural strength, of the stabilizing coating is at least a factor of 1.1 greater, preferably at least a factor of 1.5 greater, than a substrate layer of the same thickness.
  • the maximum factor is 5.
  • a security paper which has a flat substrate which has a front and a back side.
  • a transfer element is applied to the front, which is delimited by at least one edge.
  • a stabilizing coating is applied to the back in a section of the substrate. Furthermore, when viewed from above, the transfer element is covered by the stabilizing coating on the back. Within the section, at least two surface sections of the substrate are printed or coated differently by the stabilizing coating.
  • the substrate can be a single-layer or multi-layer substrate and can consist of paper, optionally with the addition of a plastic film. Any type of paper can be used, especially cotton. Of course, paper can also be used that contains a proportion of plastic material, for example a polymeric material.
  • the security paper can be used in particular to produce a security document, in particular a banknote. Such a security document is therefore also provided.
  • FIGS 1A and 1B show a schematic top view of a banknote paper 1.
  • the banknote paper is made up of several panels 2, which adjoin one another at boundaries 3 and are enclosed by a sheet edge 4. Each panel 2 provides a substrate for subsequent processing steps.
  • Fig. 1A shows a strip-shaped application area 5 in the exemplary embodiment for applying a strip-shaped transfer element 6 and a strip-shaped stabilizing coating 7
  • Fig. 1B a patch-shaped application area 8 for applying a patch-shaped transfer element 9 and a patch-shaped stabilization coating 10.
  • Fig. 2A shows a single use 2 of the banknote paper 1 with a view of a front side 11.
  • a strip-shaped primer 12 is first applied, onto which the strip-shaped transfer element 6 is applied.
  • the strip-shaped transfer element 6 includes optically or otherwise recognizable security features that improve the security against counterfeiting of the benefit 2 or a banknote made with it.
  • the strip-shaped transfer element can comprise a film as a carrier or can be carrier-free. It can be continuous, but can also include a recess.
  • Fig. 2A shows a window 13 which is formed in the substrate. The window 13 is preferably closed by the transfer element 6. It would be conceivable that the transfer element also has a window 13, which lies either over a substrate section without a window or congruently over the window of the substrate.
  • Fig. 2B also shows the individual use 2 of the banknote paper 1 with a view of the front side 11.
  • a patch-shaped primer 14 is first applied to the front side 11, onto which the patch-shaped transfer element 9 is applied.
  • the substrate of the benefit 2 may include a window 13.
  • the patch-shaped transfer element 9, like the strip-shaped transfer element 6, will generally be designed to be continuous. It closes the window 13 of the substrate. Only in exceptional cases does the transfer element 9 have a window 13 (possibly shared with the substrate). In those explained below In embodiments, the transfer elements have one or two edges and/or a peripheral edge.
  • Fig. 3A and Fig. 3B show a back 15 opposite the front 11.
  • This stabilizing coating 7 is in Fig. 3A continuously.
  • the stabilizing coating 7 is left out in the optional window 13 of the substrate (and/or the transfer element).
  • a patch-shaped stabilizing coating 10 is applied to the back 15. Like the strip-shaped stabilization coating 7, this can be designed to be continuous and have a window 13 together with the substrate (and/or the transfer element).
  • Fig. 4 shows the benefit 2 in a sectional view using the example of a strip-shaped application area 5.
  • the strip-shaped primer 12 and the strip-shaped transfer element 6 are applied to the front side 11.
  • the strip-shaped application area 5 can be designed with an optional paper thinner 16.
  • the strip-shaped stabilization coating 7 is applied to the back 15, which laterally covers the strip-shaped transfer element 6 (and optionally the strip-shaped primer 12) in the sectional view.
  • This coverage is designed in the same way for a patch-shaped application area 8.
  • the coverage significantly improves the processability and in particular the flatness of the panel 2 and/or the banknote paper 1. This is of great advantage, particularly with subsequent intaglio printing on the front and/or back 11, 15.
  • Fig. 5A-L concern design options for the back 15.
  • Figs. 5A-F show a strip-shaped stabilization coating that is applied to a first and a second surface section of the panel is applied and is designed differently in these surface sections, for example by different printing or coating.
  • the stabilizing coating contains different additives on the two surface sections. This enables optical or mechanical differentiation, which creates an additional security feature in the stabilization coating.
  • this is achieved by at least two coating sections 17 and 18 on the surface sections.
  • the first coating section 17 is applied to the first surface section and the second coating section 18 is applied to the second surface section.
  • the coating sections and the surface sections are optionally congruent in plan view.
  • the coating sections are as longitudinal stripes ( Fig. 5A ) or as a horizontal stripe ( Fig. 5B ) executed.
  • a machine-readable IR code is applied with the help of the different surface sections 17 and 18, as in Fig. 5C is shown.
  • the coating sections 17, 18 are designed as patterns, ornaments and/or characters, as in Fig. 5D-F and 5 HL upset.
  • the strip-shaped stabilizing coating is shown in a further embodiment with gradient color tones, as shown in Fig. 5G is shown.
  • tonal motifs 19 and watermarks 20 ( Fig. 5H ), further printing elements 21 ( Fig. 5K ), as well as information as negative text 22 and/or as positive text 23 ( Fig. 5L ) applied.
  • the coating sections i.e. the stabilizing coating 7, are preferably produced by a printing process and the further printing elements mentioned are applied to the back of the substrate 15 in the same printing process as the stabilizing coating 7.
  • Fig. 6 shows a section through the benefit 2 in a further embodiment.
  • an overlap of the two coating sections 17, 18 of the stabilizing coating 7 is realized.
  • This overlap area of the two coating sections 17, 18 of the stabilizing coating further increases the stability of the benefit 2, while at the same time making it more attractive with further security features through the variation options for the coating sections 17, 18 described in the previous figures, and at the same time further increasing the hurdle for counterfeiting .
  • Embodiments are not limited to this; rather, a variety of coating sections can be used.
  • individual coating sections can be designed in the form of a pixel to produce a multi-tonal or colorful image become.
  • the coating sections or the surface sections do not have to directly border one another; Gaps are possible. Even then, the stabilizing coating still has sufficient effect to improve the processability of the substrate.

Claims (16)

  1. Procédé de fabrication d'un papier de sécurité, présentant les étapes suivantes :
    fourniture d'un substrat (2) s'étendant en surface, lequel présente une face avant (11) et une face arrière (15),
    application d'un élément de transfert (6 ; 8) sur la face avant (11), lequel est délimité par au moins un bord, et
    application d'un revêtement de stabilisation (7 ; 10) sur la face arrière (15) dans une section du substrat,
    la section du substrat comportant le revêtement de stabilisation (7 ; 10) appliqué couvrant l'élément de transfert (6 ; 8) appliqué en vue de dessus,
    caractérisé en ce que
    le revêtement de stabilisation (7 ; 10) est appliqué de telle sorte que la section présente au moins deux sections de surface sur lesquelles différents matériaux de revêtement sont appliqués et lesquelles se distinguent en ce qui concerne une apparence, perceptible ou mesurable depuis la face arrière (15), du revêtement de stabilisation (7 ; 10).
  2. Procédé selon la revendication 1, caractérisé en ce que les deux sections de surface sont imprimées ou revêtues des différents matériaux de revêtement.
  3. Procédé selon l'une des revendications précédentes,
    caractérisé en ce que le revêtement de stabilisation (7 ; 10) s'étend, en vue de dessus, au moins jusqu'au bord de l'élément de transfert (6 ; 8), de préférence couvre ou recouvre entièrement l'élément de transfert (6 ; 8).
  4. Procédé selon l'une des revendications précédentes,
    caractérisé en ce que le revêtement de stabilisation (7 ; 10) présente une première et une seconde section de revêtement (17, 18) dont la première se trouve dans la première section de surface et la seconde se trouve dans la seconde section de surface, de préférence plusieurs des premières et secondes sections de revêtement (17, 18) correspondantes se trouvant dans l'une des deux sections de surface ou dans les deux sections de surface.
  5. Procédé selon la revendication 4, caractérisé en ce que les sections de revêtement (17, 18) sont appliquées de manière adjacente les unes aux autres ou de manière espacée les unes par rapport aux autres et/ou les sections de revêtement (17, 18) sont appliquées sur toute la surface ou sur une partie de la surface.
  6. Procédé selon l'une des revendications précédentes,
    caractérisé en ce qu'au moins l'un des deux différents matériaux de revêtement comprend un additif qui provoque l'apparence perceptible ou lisible par machine correspondante, de préférence le revêtement de stabilisation (7 ; 10) comprenant un premier additif sur les premières sections de surface et un second additif sur les secondes sections de surface ; et/ou
    le revêtement de stabilisation (7 ; 10) comprenant les mêmes ingrédients sur les deux sections de surface, à l'exception d'additifs perceptibles ou lisibles par machine.
  7. Procédé selon l'une des revendications précédentes,
    caractérisé en ce que le revêtement de stabilisation, les sections de surface et/ou les sections de revêtement présentent une forme plane indépendante, en particulier sous la forme de motifs, de symboles, d'ornements ou de signes.
  8. Procédé selon l'une des revendications précédentes,
    caractérisé en ce que, pour l'apparence différente, un additif est présent dans le revêtement de stabilisation sur au moins l'une des sections de surface, de préférence des additifs différents sont présents dans le revêtement de stabilisation sur les deux sections de surface.
  9. Procédé selon la revendication 8, caractérisé en ce que le revêtement de stabilisation comprend, dans au moins l'une des sections de surface, un additif perceptible, en particulier :
    comprend un additif photochromique et/ou thermochromique ;
    et/ou
    comprend un colorant comme additif, en particulier dans une teinte de couleur ou comme pigments visuellement variables, et/ou un additif luminescent ;
    de préférence, des colorants différents étant présents comme additifs sur les deux sections de surface, des additifs photochromiques ou thermochromiques différents étant présents sur les deux sections de surface ou un colorant étant présent sur la première section de surface et un additif photochromique ou thermochromique étant présent sur la seconde section de surface.
  10. Procédé selon l'une des revendications précédentes,
    caractérisé en ce que le revêtement de stabilisation est réalisé sur les sections de surface de telle sorte que l'apparence différente, en particulier sous la forme de différences dans l'infrarouge ou l'ultraviolet, dans une magnétisation ou dans une conductivité, peut être lue par machine ; et/ou
    l'apparence différente du revêtement de stabilisation se présente sous la forme d'un codage, par exemple comme un code infrarouge, un code magnétique ou un code de conductivité.
  11. Procédé selon l'une des revendications précédentes,
    caractérisé en ce que le substrat (2) est continu dans la section, de sorte que la face avant (11) et la face arrière (15) y sont ininterrompues.
  12. Procédé selon l'une des revendications 1 à 10, caractérisé en ce que le substrat présente dans la section une fenêtre qui s'étend sur l'élément de transfert (6 ; 8) en vue de dessus.
  13. Procédé selon l'une des revendications précédentes,
    caractérisé en ce que le revêtement de stabilisation (7 ; 10) est appliqué en un processus d'impression en liaison avec un autre élément d'impression (21).
  14. Papier de sécurité présentant :
    - un substrat (2) s'étendant en surface et comportant une face avant (11) et une face arrière (15),
    - un élément de transfert (6 ; 8) sur la face avant (11), lequel est délimité par au moins un bord, et
    - un revêtement de stabilisation (7 ; 10) sur la face arrière (15) dans une section du substrat, laquelle section couvre l'élément de transfert (6 ; 8) en vue de dessus,
    caractérisé en ce que
    le revêtement de stabilisation (7 ; 10) est appliqué sur la face arrière (15) de telle sorte que la section présente au moins deux sections de surface sur lesquelles différents matériaux de revêtement sont appliqués et lesquelles se distinguent ainsi en ce qui concerne une apparence, perceptible ou mesurable depuis la face arrière (15), du revêtement de stabilisation (7 ; 10).
  15. Papier de sécurité selon la revendication 14, caractérisé en ce que le papier de sécurité peut être fabriqué par un procédé selon l'une des revendications 1 à 13.
  16. Document de sécurité, en particulier billet de banque, présentant un papier de sécurité selon l'une des revendications 14 ou 15.
EP20786454.7A 2019-10-02 2020-09-28 Procédé de production d'un papier de sécurité et papier de sécurité pouvant être obtenu par ledit procédé Active EP4037913B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102019006890.4A DE102019006890A1 (de) 2019-10-02 2019-10-02 Herstellverfahren für ein Sicherheitspapier und damit erhältliches Sicherheitspapier
PCT/EP2020/025439 WO2021063542A1 (fr) 2019-10-02 2020-09-28 Procédé de production d'un papier de sécurité et papier de sécurité pouvant être obtenu par ledit procédé

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Publication number Priority date Publication date Assignee Title
EP1398174A1 (fr) * 2002-09-10 2004-03-17 Kba-Giori S.A. Substrat renforcé pour papiers de valeur
DE102004014778A1 (de) * 2004-03-26 2005-10-13 Leonard Kurz Gmbh & Co. Kg Sicherheits- und/oder Wertdokument
KR100781740B1 (ko) * 2006-08-01 2007-12-03 홍순경 유가증권의 위조방지방법
IT1393584B1 (it) * 2009-03-23 2012-04-27 Fabriano Securities Srl Documento a prova di falsificazione, quale una banconota, un passaporto, una carta di identità o simili e procedimento per la sua fabbricazione
DE102009036314A1 (de) * 2009-08-06 2011-02-10 Giesecke & Devrient Gmbh Verfahren zur Herstellung eines Sicherheitselements und nach dem Verfahren erhältliches Sicherheitselement
DE102011119213A1 (de) * 2011-11-23 2013-05-23 Giesecke & Devrient Gmbh Verfahren zum Herstellen eines Wertdokumentsubstrats, Vorrichtung und Wertdokumentsubstrat
ES2611960T3 (es) * 2013-10-11 2017-05-11 European Central Bank Elemento de seguridad, documento de valor que comprende un elemento de seguridad y método para fabricar el elemento de seguridad y el documento de valor
WO2015085438A1 (fr) * 2013-12-09 2015-06-18 Orell Füssli Sicherheitsdruck Ag Document de sécurité ayant un élément en feuille avec compensation de contrainte

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