EP3275686B1 - Procédé de fabrication d'un élément de sécurité - Google Patents

Procédé de fabrication d'un élément de sécurité Download PDF

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Publication number
EP3275686B1
EP3275686B1 EP17001246.2A EP17001246A EP3275686B1 EP 3275686 B1 EP3275686 B1 EP 3275686B1 EP 17001246 A EP17001246 A EP 17001246A EP 3275686 B1 EP3275686 B1 EP 3275686B1
Authority
EP
European Patent Office
Prior art keywords
watermark
substrate
printing
radiation
opacity
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
EP17001246.2A
Other languages
German (de)
English (en)
Other versions
EP3275686A1 (fr
Inventor
Veronika RACK
Andreas Aigner
André Gregarek
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
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 Currency Technology GmbH filed Critical Giesecke and Devrient Currency Technology GmbH
Publication of EP3275686A1 publication Critical patent/EP3275686A1/fr
Application granted granted Critical
Publication of EP3275686B1 publication Critical patent/EP3275686B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/40—Manufacture
    • B42D25/405—Marking
    • B42D25/41—Marking using electromagnetic radiation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/20—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof characterised by a particular use or purpose
    • B42D25/24—Passports
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/20—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof characterised by a particular use or purpose
    • B42D25/29—Securities; Bank notes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/30—Identification or security features, e.g. for preventing forgery
    • B42D25/333—Watermarks
    • 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
    • B42D25/378—Special inks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/40—Manufacture
    • B42D25/405—Marking
    • B42D25/43—Marking by removal of material
    • B42D25/435—Marking by removal of material using electromagnetic radiation, e.g. laser

Definitions

  • the invention relates to a method for producing a security element, wherein a substrate is provided which has a front and a back, at least for certain radiation is translucent and has a watermark, which modulates the opacity of the substrate and which has a certain range on the front side a printing element is applied, which covers the particular area of the watermark and is modifiable by the particular radiation, and the substrate is irradiated from the back with the particular radiation, wherein the particular area of the watermark is used with respect to the modification of the printing element as a mask and the printing element in the register is modified to the watermark.
  • watermarks are known. They are usually introduced in the production of the substrate from which the security element is made, usually a paper. Watermarks are easily recognizable when the security element is viewed through transmitted light, since they modify the opacity of the substrate. As a rule, in the production of the paper, the thickness of the substrate is varied, so that a reduction in thickness leads to an opacity reduction.
  • watermark colors which also locally modify the opacity of the substrate.
  • Watermarks are formed in the substrate in the production of the security material starting material, for example in the manufacture of banknote paper. Due to tolerances in tool production the round screen required for watermark generation, tolerances in watermark production in the paper machine, and variations in the cutting process of a paper substrate, paper sheets usually have variations in the position of the watermark, which are in the millimeter range. Therefore, it is difficult to arrange security features, eg printed elements in exact position to the watermark, so to pass.
  • a watermark can be used as a mask for laser radiation to pattern a layer printed on the watermark.
  • a laserablatierbare printing layer can be arranged above the watermark, and the opacity variation, which has the watermark, serves to ablate the print layer structured in the exact register to the watermark.
  • this approach has the disadvantage that the contrast curve of the watermark is converted into an identical contrast profile for the security feature. In the case of ablation, the print layer is ablated where the watermark is lighter, and not ablated where the watermark is darker.
  • the invention is therefore based on the object of specifying a method with which a security element is generated, in which a security feature in the register is a watermark, without any definition of the contrast course of the watermark.
  • a substrate which has a front and a back, at least for certain radiation is translucent and has a watermark, which modulates the opacity of the substrate and which has a certain range has applied to the front of a printing element, which covers the particular region of the watermark and is modifiable by means of the particular radiation, and the substrate is irradiated from the back with the particular radiation, wherein the particular region of the watermark with respect to the modification of the printing element as Mask is used and the printing element is modified in the register to the watermark, wherein the particular area of the watermark formed structured is that the modified printing element forms an alignment structure, in a subsequent process, a security feature is applied to the substrate, wherein the position of the Justier Modell detected and taken into account and the security feature is adapted to the position of the Justier Modell and thus arranged to the watermark.
  • the invention is based on the concept of WO 2013/0124059 A1 on, which can generate a printing element in the register to a watermark.
  • the watermark is now designed in a certain range so that the pressure element forms an alignment structure after the modification. This is then used as the basis for a subsequent process for applying a security feature to the substrate.
  • the security feature can be adapted to the position of the adjustment structure and thus ultimately to the watermark, without any limitation with respect to the security feature.
  • the security feature it is no longer limited to the effect that the security feature must be designed as a printing element and imperative to emulate the contrast of the watermark.
  • the modified printing element forms an adjustment structure that is significantly more contrast-rich than an evenly high-contrast, ideal watermark. The problem that the location of a watermark is very difficult to determine avoids the invention so.
  • a motif is printed as a security feature.
  • registration is made for the alignment structure so that the motif in the perfect register is part of the watermark without any binding to the contrast of the watermark with respect to the printed motif. Since the position of the Justier Vietnamese is detected before printing the subject, it is possible in a development to make the motif so that the Justier Vietnamese overprinted when imprinted or supplemented. In both cases, it is then no longer recognizable to a viewer in the original form which they had as an adjustment structure.
  • the subsequent process comprises application of a laser-modifiable coating and a motif is produced by irradiation of laser radiation, which modifies the coating in the form of the motif.
  • a motif is produced by irradiation of laser radiation, which modifies the coating in the form of the motif.
  • the security feature which is generated by evaluating the position of the alignment structure in the perfect register to the watermark is, as already mentioned, not limited to that printing techniques are used. It is also possible to apply a film element or, more preferably, to use a laser beam cutting process. In the latter case, the adjustment structure can be cut out and thus removed with particular preference. This is possible since the position of the alignment structure is determined before the start of the laser beam cutting process. The adjustment structure itself is therefore no longer needed in the process and after the process.
  • various processes for applying a security feature can be combined, in particular printing, and / or laser beam cutting and / or the application of diffractive structures and / or the application of holographic structures. If the security feature covers, supplements or removes the adjustment structure, this is preferably done in the last process step in the case of several processes for generating the security feature. However, this is not mandatory since, upon removal of the alignment structure within the several processes, the further referencing for the following processes is, of course, also due to the results the previous processes can be aligned. For example, when combining a printing process and a laser beam process, it is possible to overprint the alignment structure with the printing process and to align the positional orientation for the following laser beam process on the printed motif. The same applies if first a laser beam cutting is performed, which cuts out and removes the Justier poetic. Subsequent processes can then be aligned with the results of the laser beam process, ensuring perfect registration within the security feature and the watermark.
  • the particular shape of the watermark ultimately dictates the shape of the alignment structure.
  • the shape of a Justiernches is preferred.
  • the alignment structure may be in the form of a negative structure, i. be formed as a light structure against a dark background.
  • the ablation of the pressure element can preferably be carried out.
  • the adjustment structure it is possible to design the adjustment structure as a positive element, i. dark against light background.
  • indirect ablation methods as described below, can be used.
  • the invention utilizes the fact that the energy of radiation is attenuated by the substrate.
  • the more opaque (eg thicker) the substrate the stronger the attenuation. Therefore, the property of the watermark to modulate the opacity (eg, thickness) of the substrate is used to advantage.
  • the watermark is used in the specific area as a mask by a pressure element is used, which is modifiable by certain radiation for which the substrate is translucent, and that certain radiation is irradiated from the back of the substrate to the front side, on which the printing element is applied overlying the watermark.
  • the modification of the printing element to the Justier Modell which automatically lies in the perfect register to the watermark.
  • a modification of the pressure element is in particular an ablation in question when a pressure element is used, which is ablatierbar.
  • a pressure element which is ablatierbar.
  • any suitable modification of a printing element can be used.
  • This modification can be done directly, ie by direct action of the particular radiation on the printing element, or indirectly.
  • the particular radiation modifies an element, which in turn is used to modify the pressure element, which is perceivable on the front side.
  • a layer can be modified which influences the adhesion of the pressure element on the front side.
  • the printing element is then removed in the areas in which the layer has been modified (or not modified in the inverse case). The procedure is similar to the principle of the so-called wash color.
  • a further possibility for indirect modification is the modification of a developer layer which, in interaction with a developer or fixing medium, modifies the printing element at those points at which the developer layer has been suitably exposed.
  • Indirect influence of the pressure element is also possible in a two-stage process if the pressure element has an adhesive layer, which is applied to the front and exposed from the back with the participation of the watermark as a mask.
  • a color layer of the printing element can then be applied, which adheres only to those places where the exposure took place.
  • the exposed adhesive layer can also be acted upon here in an intermediate step so that it remains only in those areas in which a suitable exposure took place (positive effect) or remains in those areas in which no suitable exposure took place (negative effect).
  • pressure element is understood to mean an element applied to a substrate, which optionally, after further processing, realizes a visually or mechanically evaluable element.
  • printing elements based on printing inks. As far as this description speaks of a printing ink, this is to be understood by way of example for a printing element.
  • printing element or “printing ink” and the application of this printing element is mentioned on the front over the watermark, it is also included that applied by a printing element layer system, only a part of the layer system and is exposed to the specific radiation; the other part is then applied after these steps and interacts with the exposed portion of the layer system to create a printed image in the watermark to the watermark.
  • printing element thus also means a multilayer system, wherein a part of the layer system is applied to the front surface before the exposure and then illuminated with the specific irradiation becomes. Another part of the layer system is then applied only after the exposure.
  • banknotes watermarks are common, which modulates the opacity of the substrate by varying a thickness of the substrate at a constant density of the substrate, since such watermarks are usually very difficult to emulate.
  • These watermarks are well suited for the process of the invention.
  • a watermark that modulates the opacity of a substrate can also be generated by a so-called watermark color, rather than by varying the thickness of the substrate.
  • the watermark color causes a reduction of the scattering of light in the substrate core. Basically, scattering is due to a large number of interfaces of fibers, fillers, glue, etc. to the surrounding air. These ambient airborne interfaces are significantly reduced by suitable binder components in the watermark ink, thus decreasing opacity in these areas.
  • a binder component is, for example, glycerol, which penetrates into the substrate and remains in the pores of the substrate. The same applies analogously if the watermark is caused by a coloration which modulates the opacity of the substrate.
  • the printing ink comprises one or more of the following substances: an optically variable color, a magnetically orientable color, a metallic color, a color which is effective in the non-visible spectral range.
  • the term "certain radiation” used in this description therefore expresses that a pressure element is used which is modifiable by means of this radiation.
  • the modification for example in the form of an ablation, is achieved when the particular radiation at the front has a suitable intensity.
  • the opacity modulation caused by the watermark reduces the intensity of the radiation on the front surface on which the printing element is located.
  • the radiation intensity on the back side is therefore adjusted so that the opacity modulation, which is caused by the watermark, leads to a radiation modulation on the front side, which modulates the modification effect on the printing element.
  • the radiation intensity at the backside is chosen so that at the places where the watermark causes the lowest opacity in the substrate, a modification of the printing element occurs at the places where the watermark causes the highest opacity of the substrate, however, no or only a very slight modification is achieved. Then, the watermark serves as a mask in the irradiation of the substrate with the specific radiation. Since the modification of the printing element usually requires a relatively high radiation intensity, the use of a beam is advantageous, which is rastered over the back of the substrate.
  • ink used here stands out for the printing effect achieved by the watermark-masked and radiation-based modification.
  • the printing ink itself can also comprise structures, which go beyond conventional color systems, such as a foil coating or metallization.
  • Items to be protected within the scope of this description may include, for example, security papers, identity and value documents (such as banknotes, chip cards, passports, cards, identification cards, identity cards, stocks, bonds, certificates, vouchers, checks, tickets, credit cards, health cards,. ..) as well as product security elements, such as Labels, seals, packaging, be.
  • identity and value documents such as banknotes, chip cards, passports, cards, identification cards, identity cards, stocks, bonds, certificates, vouchers, checks, tickets, credit cards, health cards,. ..
  • product security elements such as Labels, seals, packaging, be.
  • security paper is understood here to mean, in particular, the precursor that can not yet be processed to a document of value (eg a card) which, in addition to the printing produced according to the invention, can also have other authenticity features (such as luminescent substances provided in the volume, for example).
  • value documents here on the one hand from security papers produced documents, eg. B. banknotes understood.
  • value documents can also be other documents and articles which are processed with the printing method according to the invention, so that the value documents have non-copyable authenticity features, whereby an authenticity check is possible and at the same time unwanted copies are prevented.
  • the substrate is particularly preferably made of paper made of cotton fibers, as used for example for banknotes.
  • the substrate may also be made of paper of other natural fibers, also preferably of synthetic fibers, ie a mixture of natural and synthetic fibers.
  • the substrate consists of a combination of at least two superimposed and interconnected different substrates, a so-called hybrid. It may be, for example, a combination of plastic film paper or even a three-layer composite, such as plastic film paper plastic film, ie a paper substrate is covered on either side by a plastic film or paper plastic film paper, ie a substrate a plastic film is covered on both sides by a paper substrate.
  • the substrate consists of an at least partially transparent plastic film.
  • the watermark is generated in this case by a color which is applied to one side of the substrate and whose hue is at least similar to the hue of the substrate.
  • a watermark is for example off DE 10 2009 056 462 A1 known.
  • the reciprocal property of translucency is opacity. As far as there is talk here that a watermark modulates the opacity, it can equally be said that it inversely modulates the translucency.
  • Fig. 1a shows in a sectional view of a security element 1, wherein for simplicity, only a substrate 2 is drawn.
  • the substrate 2 has a front side 3 (which is arranged below in the figures without further restriction) and a back side 4.
  • a watermark 5 is incorporated, which modulates the thickness of the substrate 2 and thus its opacity.
  • This opacity modulation is in Fig. 1b which shows a plan view of the front side 3 of the substrate 2 schematically.
  • the substrate 2 has a medium opacity.
  • the substrate 2 has a low opacity or a high translucency.
  • the paper thickness can also be increased by embossing. This can be used for branding. The brand is then pronounced as a thin spot, the environment of the brand as a thick spot. The mask effect for the laser is enhanced in such an embodiment.
  • a security feature for example a printed image and / or a laser beam cutting area and / or a film element and / or a diffractive structure and / or a hologram is to be generated in registration with the watermark, which is in perfect registration with the watermark , To accomplish this, first an alignment structure is created which is fitted to the watermark.
  • Fig. 2 shows the substrate 2 with applied on the front side 3 ink 9.
  • the ink 9 is not structured (yet), but at least partially covers a certain area 13 in which the watermark 5 is present in the substrate 2.
  • a laser beam 10 is now guided over the substrate. It passes through the substrate 2.
  • the wavelength of the laser beam is such that the ink 9 absorbs the radiation.
  • the laser beam 10 becomes dependent of the opacity of the substrate 2, which is modulated by the watermark 5 attenuated.
  • the laser beam 10 is greatly attenuated.
  • the laser beam is least attenuated.
  • Fig. 2 This is schematically illustrated by the thickness of the laser beam 10. In fact, of course, only the intensity of the laser beam 10, but not its radiation cross section when passing through the substrate 2 is attenuated.
  • the intensity of the laser beam 10 is adjusted so as to give a modulation of the ablation effect that the laser beam 10 has on the printing ink 9 applied to the front side 3: in the area 8 with low opacity, the printing ink 9 is ablated a maximum, in areas 7 with medium Opacity, the ink is ablated to a lesser degree, and in areas 6 with maximum opacity, the least or possibly even no ablation occurs.
  • a laser-sensitive ink can also be discolored.
  • the laser-sensitive ink only discolors in areas of low opacity.
  • the watermark is formed in the specific region 13 so that after the ablation of the printing ink 9, an alignment structure is produced, which is embodied purely by way of example in the form of at least one adjustment cross 14 in subsequent figures.
  • This adjustment structure forms the local referencing for subsequent processes for applying a security feature, which then lies in the perfect register for the watermark 5.
  • the described embodiment can be modified such that instead of the watermark 5, which modulates the opacity by a thickness variation of the substrate, a so-called “false” or printed watermark 11 occurs, ie a watermark which generates on the substrate 2 by a so-called watermark color has been.
  • the Fig. 3a and 3b schematically show the provision of such a printed watermark 11.
  • a watermark color is printed on the back 4 of the substrate 2.
  • the watermark color penetrates accordingly Fig. 3b into the substrate 2 and causes after drying or other suitable processing, a translucency 12 in the substrate 2 at the points where the watermark ink 11 was printed. Press now, as in Fig.
  • the substrate 2 with the printed watermark 12 with the laser beam 10 results in the effect that the laser beam 10 is attenuated less in intensity at positions 10a at which the watermark increases the translucency of the substrate 2 at positions 10b where the watermark does not have this effect.
  • an ablation of the printing ink 9 in the exact register to the watermark 11 is obtained, without this register having been set during the application of the printing ink 9.
  • an adjusting structure for example, in the form of a Justiernches 14 are equally generated.
  • the printing ink 9 is arranged on the underside 3 of the substrate 2, ie opposite the front side 4, on which the watermark 5 embossed or the watermark 11 is printed. Of course this is not mandatory. Similarly, the ink 9 can also be arranged on the front side 4. The laser radiation is then radiated from the bottom 3.
  • Fig. 5 shows the security element 1 with the watermark 5, which in this embodiment, the shape of a triangle and in addition to the specific area 13, here in the form of a Justiernches comprises.
  • the watermark 5 is printed in the specific area 13 with the ink 9 (where it does not depend on registration accuracy), which then, as based on the Fig. 1 to 4 is explained, is structured so that a Justiernch 14 is formed, which is formed here as a negative mold in a circular spot of the ink 9.
  • a positive form is possible.
  • the positive shape can also be achieved by appropriate design of the particular area 13 by providing it with the shape that in Fig. 6 for the adjustment cross 14 is shown.
  • the Justiernch 14 is now used in terms of its location to apply a further security feature.
  • this is a printed image 15, which includes, for example, a five-pointed star and a six-pointed star.
  • the six-pointed star is arranged so that the Justiernch 14 is overprinted, which is thus no longer visible.
  • the security feature 15 in the form of the printed image is, since it was applied in exact registration to Justiernch 14, even in exact registration to the rest of the watermark 5, without replicating its contrast profile.
  • the security feature is performed in the form of a laser cut 16, which also exemplarily cuts out the area with the Justiernch 14, so that this is no longer visible afterwards.

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  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Electromagnetism (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Physics & Mathematics (AREA)
  • Manufacturing & Machinery (AREA)
  • Optics & Photonics (AREA)
  • Business, Economics & Management (AREA)
  • Accounting & Taxation (AREA)
  • Finance (AREA)
  • Credit Cards Or The Like (AREA)
  • Printing Methods (AREA)

Claims (6)

  1. Procédé de fabrication d'un élément de sécurité (1),
    - un substrat (2) étant prévu, leuqel comporte une face avant et une face arrière (3, 4), qui est translucide au moins pour un rayonnement déterminé (10) et qui comporte un filigrane (5, 11) qui module l'opacité du substrat (2) et qui possède une région déterminée (13),
    - un élément de pression (9) étant appliqué sur la face avant (3), lequel couvre la région déterminée du filigrane (5, 11) et peut être modifié au moyen du rayonnement déterminé (10), et
    - le substrat (2) étant irradié depuis la face arrière (4) avec le rayonnement déterminé (10), la région déterminée (13) du filigrane (5, 11) étant utilisée comme masque pour modifier l'élément d'impression (9) et l'élément d'impression (9) étant modifié dans le repère par rapport au filigrane (5, 11),
    caractérisé en ce que
    - la région déterminée (13) du filigrane (5, 11) est structurée de telle sorte que l'élément d'impression modifié forme une structure d'ajustage (14),
    - dans un processus ultérieur, une caractéristique de sécurité (15, 16) est appliquée sur le substrat (2), la position de la structure d'ajustage (14) étant détectée et prise en compte et la caractéristique de sécurité (15, 16) étant disposée de manière adaptée à la position de la structure d'ajustage (14) et donc au filigrane (5, 11).
  2. Procédé selon la revendication 1, caractérisé en ce que le processus ultérieur comprend l'impression d'un motif (15) comme caractéristique de sécurité.
  3. Procédé selon l'une des revendications précédentes, caractérisé en ce que le processus ultérieur comprend l'application d'un revêtement modifiable par laser et la génération d'un motif par émission d'un rayonnement laser.
  4. Procédé selon la revendication 2 ou 3, caractérisé en ce que, lors de l'impression ou de l'application, la structure d'ajustage (14) est complétée ou pourvue d'une surimpression.
  5. Procédé selon l'une des revendications précédentes, caractérisé en ce que le processus ultérieur comprend la génération d'un motif (16) par découpe au faisceau laser, la structure d'ajustage (14) étant également découpée et enlevée.
  6. Procédé selon l'une des revendications précédentes, caractérisé en ce que la région déterminée (13) a la forme d'une croix d'ajustage (14).
EP17001246.2A 2016-07-28 2017-07-20 Procédé de fabrication d'un élément de sécurité Not-in-force EP3275686B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102016009231.9A DE102016009231A1 (de) 2016-07-28 2016-07-28 Verfahren zum Herstellen eines Sicherheitselementes

Publications (2)

Publication Number Publication Date
EP3275686A1 EP3275686A1 (fr) 2018-01-31
EP3275686B1 true EP3275686B1 (fr) 2019-05-15

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP17001246.2A Not-in-force EP3275686B1 (fr) 2016-07-28 2017-07-20 Procédé de fabrication d'un élément de sécurité

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Country Link
EP (1) EP3275686B1 (fr)
DE (1) DE102016009231A1 (fr)
ES (1) ES2739184T3 (fr)

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DE102004022079A1 (de) * 2004-05-05 2005-11-24 Giesecke & Devrient Gmbh Wertdokument mit Seriennummer
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DE102008063471A1 (de) 2008-12-17 2010-07-01 Giesecke & Devrient Gmbh Sicherheitselement mit Wasserzeichen
DE102009056462A1 (de) 2009-12-01 2011-06-09 Giesecke & Devrient Gmbh Durchsichts-Sicherheitsmerkmal
DE102011103000A1 (de) * 2011-05-24 2012-11-29 Leonhard Kurz Stiftung & Co. Kg Verfahren und Vorrichtung zum Heißprägen
DE102012003601A1 (de) 2012-02-21 2013-08-22 Giesecke & Devrient Gmbh Druckverfahren mit Passer zwischen Druck und Wasserzeichen
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