EP3081516A1 - Procédé et dispositif de fabrication d'un élément de sécurité - Google Patents

Procédé et dispositif de fabrication d'un élément de sécurité Download PDF

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Publication number
EP3081516A1
EP3081516A1 EP16001066.6A EP16001066A EP3081516A1 EP 3081516 A1 EP3081516 A1 EP 3081516A1 EP 16001066 A EP16001066 A EP 16001066A EP 3081516 A1 EP3081516 A1 EP 3081516A1
Authority
EP
European Patent Office
Prior art keywords
web
components
film web
security element
draw roll
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.)
Granted
Application number
EP16001066.6A
Other languages
German (de)
English (en)
Other versions
EP3081516B8 (fr
EP3081516B1 (fr
Inventor
Michael Rahm
Andreas Rauch
Manfred Heim
Andreas Pretsch
Matthias Walther
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 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 EP3081516A1 publication Critical patent/EP3081516A1/fr
Application granted granted Critical
Publication of EP3081516B1 publication Critical patent/EP3081516B1/fr
Publication of EP3081516B8 publication Critical patent/EP3081516B8/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
    • B42D25/45—Associating two or more layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/40—Manufacture
    • B42D25/48—Controlling the manufacturing process
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H23/00—Registering, tensioning, smoothing or guiding webs
    • B65H23/02—Registering, tensioning, smoothing or guiding webs transversely
    • B65H23/022—Registering, tensioning, smoothing or guiding webs transversely by tentering devices
    • B65H23/025—Registering, tensioning, smoothing or guiding webs transversely by tentering devices by rollers
    • B65H23/0258—Registering, tensioning, smoothing or guiding webs transversely by tentering devices by rollers with a bowed axis

Definitions

  • the invention relates to a method for producing a security element for documents of value, banknotes or the like, comprising the steps of: providing a film web which contains a plurality of first components of the security element for producing a plurality of the security element, and conveying the film web along a path, and Applying a plurality of second components of the security element to the web at the end of the route.
  • the invention further relates to a device for producing a security element for documents of value, banknotes or the like, comprising: a conveyor for conveying a film web, which contains a plurality of first components of the security element, along a path and at the end to produce a plurality of the security element the path arranged applicator for applying a plurality of second components of the security element on the web.
  • security elements are increasingly used that consist of several constituents, for example of several layers.
  • An example of such a security element are so-called moire magnifiers, in which microstructures and microlenses are applied one above the other.
  • the microstructures lie on a substrate in a well-defined grid and the microlenses must be formed with respect to raster width and position of this defined grid in a precisely prescribed arrangement to the microstructures.
  • the register between these two components must be followed very closely. This is technically complex, both when the first and second components are formed on different webs that need to be joined together, as well as when the first and second components are produced by successive printing and / or embossing processes.
  • the DE 4224236 A1 discloses an offset rotary press for a color printing system in which a plurality of components of an article to be printed are successively applied in a plurality of printing sections. A paper web is conveyed through the printing sections. Before it passes through the printing sections, it is guided over an expansion device, comprising a draw roll, which has a biaxially curved lateral surface.
  • the draw rolls cause a mutually opposite expansion of the paper web.
  • the paper web is specifically supplied with dampening water in order to set a desired paper web width transversely to the web longitudinal axis.
  • the stretching by means of the rollers and the dampening water supply of the paper are coordinated.
  • the WO 2009/083149 A2 provides for the promotion of a film web before applying the second components before the use of a so-called Einschwenkwalze, which is made depending on the adjustment obliquely to the conveying direction of the web. In this way, the web is tilted relative to the axis of a subsequent printing or embossing cylinder so as to maintain the register position between first constituents already present on the web. and to be applied to the foil with the printing or embossing cylinder second components, which are defined by the cylinder jacket surface of the corresponding cylinder set.
  • the principle of WO 2009/083149 A2 has proved its worth.
  • security elements which are further improved in terms of their security against counterfeiting, have further increased the requirements for register accuracy between the first and second components.
  • material mixtures are increasingly used for security elements, that is, for example, the combination of a plastic web, which carries the plurality of first components of the security element, with a paper web, which provides the plurality of second components.
  • These material mixtures are difficult to control due to different thermal expansions, heating during conveyance of a web, etc., in terms of production, as far as the registration accuracy when bringing together the different materials is concerned.
  • the invention is therefore based on the object, a method and an apparatus of the type mentioned in such a way that the register accuracy between the existing on the web first components and the application of the second components can be set as accurately as possible.
  • the object is further achieved with a device according to claim 8.
  • a draw roll which has a two-dimensionally curved lateral surface.
  • This draw roll makes it possible to adjust the tension or tension in the middle of the web with respect to the edges, for example to reduce (or preferential) or to increase the tension in the middle of the web.
  • the tension conditions in the web can be adjusted so that the application of the plurality of second components of the security element in register with the first components on the web is done.
  • the web can be further processed, d. H. the end of the track is usually not the end of the machining facility.
  • a biaxial curvature is understood to mean that the lateral surface in each case has a curvature in two sectional planes which are not parallel to one another, ie may be orthogonal in particular.
  • the concept of biaxial curvature is therefore identical in the underlying understanding with the concept of a two-dimensionally curved surface in the mathematical sense.
  • the curvature in each section plane is not limited to satisfying a circular geometry. Rather, arbitrarily shaped lateral surfaces also fall under the term biaxial or two-dimensional curvature.
  • the biaxially curved lateral surface of the draw roll causes the draw roll is no longer a pure circular cylinder in the mathematical sense.
  • a cylindrical surface is known to be obtained when you move a closed trajectory (the so-called generator) along a straight line.
  • Conventional rolls have as a generator a circle which is displaced along a straight line, they are circular cylinders.
  • the draw roll also has a circle as a generator in preferred embodiments, but now not along a straight line, but is moved along a curved trajectory.
  • the circle as a generator is responsible for a uniaxial curvature, the curved trajectory, along which the circle is moved to generate the lateral surface, causes a further axis of curvature.
  • the approach of the present invention when conveying the web in the processing machine, allows the tension on the web to be adjusted to compensate for distortions across the width of the web. As a result, distortions that would lead to the production of rejects can be avoided when applying the second constituents or, more generally, in the concerted execution of processing steps on the web.
  • the processing steps may include, for example, the generation of a desired overall motif in which a first print layer is applied to the web in a first processing step. This can be the provision of the web to be conveyed or in the device a processing device located before the start of the route.
  • the print layer can be, for example, a motif grid for a moiré magnifier, a modulo mapper or a tilted image with or without magnification effect.
  • the application of the second components may be, for example, the application of a microlens layer with a microlens grid, which has to stand in a predetermined relationship to the first motif grid in order to achieve a desired overall motif.
  • the draw roll according to the invention makes it possible to compensate for distortions across the width of the web, ie transversely to the conveying direction. Disturbances of one of the two motif grids and disturbances of the overall motive are avoided.
  • the order in which the first and second components are applied can be reversed.
  • the solution of the invention achieves a particular economics benefit in that wider webs can be used which would otherwise be required for conventional manufacturing apparatus / methods due to distortions caused by, for example, the conventional Conveying devices and / or caused by inhomogeneities in the material of the web or could be made worse, would not be suitable.
  • the device can at the beginning of the route a processing device, for. B. a printing unit, which generates the first components on the web.
  • the incoming film already contains the first constituents. Then the film passes through a printing unit, in which a UV-curable medium (embossing lacquer) is applied. Subsequently, the web is conveyed to an embossing station, which generates the second components by embossing and UV irradiation. There, the elongation of the incoming film must be corrected so that the second components harmonize as desired with the first components in terms of position and dimension. Preferably, the correction takes place immediately before the embossing tool. Instead of a UV-curable medium and a thermoplastic medium or a thermoplastic deformable film can be used.
  • a UV-curable medium and a thermoplastic medium or a thermoplastic deformable film can be used.
  • the processing steps in particular the production of the first and second components, can take place both on one and the same side of the web, as well as on different sides.
  • a positive side effect of the device according to the invention or of the method according to the invention is that the requirement for the film quality with regard to stretching at different tension or different voltages is markedly reduced. It is no longer absolutely necessary to use films which have a very homogeneous expansion behavior, but can even out a material-related inhomogeneous expansion in the case of film material which exhibits a comparatively inhomogeneous expansion behavior by suitably setting the draw roll.
  • a particularly preferred design is a roller which has the shape of a curved circular cylinder. It is therefore a circular cylinder in and of itself cylindrical, the term "circular cylinder” being understood here in the mathematical sense. He describes a cylinder, which is obtained by moving a circle, which is the generator in the mathematical sense, along an axis. By bending this axis, the draw roll provided according to the invention with a two-dimensionally curved lateral surface is obtained.
  • the bending of the circular cylindrical roller that is, the deflection of the axis of the roller adjustable.
  • the curved roller is additionally rotatably mounted at both ends such that the plane of the maximum bending can be inclined relative to the plane of the continuous film web (pivotable roller).
  • the curved roller is additionally rotatably mounted at both ends such that the plane of the maximum bending can be inclined relative to the plane of the continuous film web (pivotable roller).
  • the application of the plurality of second constituents of the security element can in a first embodiment be carried out by providing an additional web containing the plurality of second constituents and connecting it to the web.
  • the invention is particularly advantageous in cases where the additional web is made of a different material than the web. For example, different strains of the material mix plastic web / paper web can be well balanced.
  • an applicator is provided which has a laminating unit, and a feeder feeds the additional sheet to the laminating unit.
  • the plurality of second constituents are applied by means of a printing or embossing process.
  • the device then has as an applicator on a printing or embossing.
  • the plurality of second components is applied at the end of the route through a printing or embossing cylinder, through which the web is guided.
  • a further variant for the roller with a two-dimensionally curved lateral surface is a so-called S-roll: it contains in its interior a plurality of elements with the aid of which the extent of the casing at the respective point can be influenced. It has the advantage that the shape of the roller can be made very flexible, in particular can be more complicated than a simple bend.
  • a curved circular cylinder whose bending and optionally also pivoting position are adjustable
  • a cylinder which has a convex or concave shape in cross-section, that is to say a barrel. or spindle-shaped.
  • the curvature of the lateral surface is not changeable, but one can use a cylinder whose basic shape is adapted to normal conditions with respect to the stretching of the web.
  • Alternative lateral surfaces are represented by cones in the middle or else considerably more complicated shapes, which can be realized by milling or turning and which influence the expansion of the film or the conveyed medium in the desired manner.
  • rollers are not continuously deformed during operation, ie during rotation. The risk of material fatigue is lower, or it can simpler materials for the roller can be used.
  • the roller used has a sheath which influences the adhesion or friction to the medium used. Local adhesion or frictional properties varying over the length of the roll can also affect the elongation of the conveyed medium in the desired sense. With a positive result, a grooving of a plastic coating of a draw roll was tested.
  • An alternative to producing a variable adhesion profile is to use a locally applicable electrostatic charge on the roller.
  • the registration between first and second components is continuously monitored during operation and the position of the draw roller is adjusted accordingly within the scope of a regulation.
  • the monitoring can be done after the application of the plurality of second components of the security element.
  • This measurement can be carried out particularly simply, but has the disadvantage that errors in the register between the first and second components are only recognized if deviations from the ideal case have already occurred and irreparable in the product.
  • the measuring device can be upstream of the draw roll.
  • the measuring device is downstream of the draw roll.
  • the draw roll can be adjusted in the sense of a regulation to set the position of the first components predetermined. Unlike when measuring after applying the second constituents, it is still possible to react here if there is a misplacement of the first constituents, since an adjustment of the draw roll on the entire web path acts until the second constituents are applied.
  • the measurement between the draw roll and the end of the stretch, ie at the point where the application of the second constituents begins, thus has the advantage that the production of rejects can be avoided and nevertheless a relatively simple control can be carried out, the manipulated variable of which Adjustment of the draw roller is.
  • the invention comprises a position detector device, which is arranged on the track and is designed to determine a position of the first components.
  • the device comprises a corresponding control device which controls the adjustable draw roller, in particular in the form of a control.
  • measuring devices are expediently located on all webs.
  • an enlarged moiré image is detected by means of an image recognition which determines the size of the moiré image and / or its distortion and makes it the basis of the control of the draw roller.
  • An enlarged Moire image is z. B. observed by means of a camera, the current magnification factor and the deviation from the intended magnification factor determined and thus affects the setting of the draw roller such that the magnification factor moves back towards the target value, ideally over the entire web width.
  • the microstructure raster must be 0.5% smaller than the microlens raster across and along the film transport direction the microlens grid. So z. B. according to the embossing the microlens grid by 0.5% larger than the microimage grid.
  • the microlenses are produced (preferably by embossing in transparent paint).
  • microlens and microimage raster geometry can be determined from the deviation between the enlarged nominal image and the real visible enlarged moire image, which raster width difference and which angle is set between microlens and Mikro Modellraster. After comparing the actual and setpoint, the draw roller can be readjusted.
  • Very high magnification factors can also be generated by means of microlenses and microimages and a suitable grid arrangement of the two structures relative to one another. It can z.
  • moiré images may be produced which appear to be above or below the film plane by more than 1 cm and have a size of several millimeters.
  • Moire images of this kind are very well suited for security elements because of their size and the striking depth or height effect.
  • a security element there is always very limited space available on a banknote.
  • a well-perceived motif with several millimeters in size should be positioned centrally in the middle of the thread.
  • a Moire image can be positioned at about 10 mm so that it appears at a normal viewing angle centrally on the patch.
  • moire motifs as large as this, care must be taken to ensure that the enlarged motifs appear on all value documents of similar size and position in the slide element. This is very difficult to accomplish in the production because, with a lateral shift of the microlens to the microstructure grid of only one screen pitch (typically 10 ⁇ m to 50 ⁇ m), the magnified motif already shifts laterally by a distance resulting from microstructure grid size times magnification factor and therefore in the range of several millimeters.
  • the size and the position of the moiré image are recorded by means of a camera and image evaluation, and with this information the draw roller in the feed of the web is adjusted so that the enlarged moiré image is at the desired position on the film.
  • the controlled system moves only in the range of 1 .mu.m to 50 .mu.m.
  • the absolute positioning accuracy is not set, but the relative aspect ratios are adjusted to achieve the proper magnification.
  • the concept of position detection of the first components thus also includes the position detection of the combination of first and second components and in particular the evaluation of a moiré image with regard to magnification and / or distortion.
  • a control variable for the retraction position or angle of the draw roll is determined from the position detection.
  • the moire motifs can be quite different in type and size for different applications.
  • the evaluation of different size and shape variable motifs in terms of size and location is always difficult for image analysis. Therefore, adaptive systems are preferably first trained on the respective motif.
  • control motifs are provided on the web and possibly on the additional web, which are particularly preferably evaluated on the film edges and / or on the film width in size and optionally position of the camera detection and evaluation tool and thus the respectively necessary readjustment the film stretching be initiated.
  • a simple control motif a stripe design of alternating light and dark stripes in and perpendicular to the film running direction is mentioned. The strips ideally have the same or a slightly different periodicity compared to the microlens grid. This stripe design makes it possible to detect web distortions via the detection of the moiré magnified stripes, as well as tilting between microlens and microstructure patterns via a skew of the enlarged stripes.
  • control motif could be arranged at several positions across the width of the film (eg left edge, right margin and in the middle). It could be arranged continuously over the film longitudinal direction or as a repetitive motif along the film. It could thus provide the information to correct both the film stretching and a tilt of the film.
  • Such a control motif would be the same for all Moire Magnifier films. The advantage here is that the image acquisition system only needs to be trained on the recognition and evaluation of this one control motif.
  • microlens rasters may also be useful to use different microlens rasters in the control motifs of the image motif. It can be seen from the prior art that the sensitivity of the enlarged motifs to angle errors between microlens and microimage grids increases with increasing magnification. Therefore, it may make sense to choose a microlens and microimage grid with very small feature size and high magnification as a control. The sensitivity of the control motif to raster width changes and angular errors between microlens and microstructure is then very high and deviations from the setpoints can be detected very accurately.
  • the position of the first components of the web is checked by control elements are provided on the web, which are provided distributed over the width of the web. There are thus measuring points which are distributed over the width of the web at which the position determination takes place.
  • the draw roll is then adjusted so that the control points at certain locations, i. H. Traces of the railway lie. Due to the adjustable draw roller with biaxially curved lateral surface, the curvature can be varied during the adjustment.
  • FIG. 1a shows a side view of an embossing machine with an embossing unit in the form of an embossing cylinder 3 and a draw roller 4.
  • the embossing machine leads a web 1 of an endless film in the conveying direction 2 along a distance S via the draw roller 4 to the embossing to.
  • the web 1 contains first constituents of a security element, for example printed microstructure information.
  • the first ingredients are supplemented with second ingredients to form a security element.
  • the second constituents can be, for example, embossed structures, in particular microlens structures, which, together with the embossed structures, realize a moire magnifier as a security element.
  • the first components are not shown on the lane 1 for the sake of simplicity.
  • the endless film is pressed against the embossing cylinder 3, that the structures to be embossed are imaged on the web 1.
  • the imprint of structures in this embodiment is the application of second components of the security element.
  • other processing steps can be carried out in other embodiments, for example, the lamination of a film (see. Fig. 3 ).
  • the embossing is then z. B. replaced by a corresponding laminating.
  • the web 1 wraps around the embossing cylinder 3 in a predetermined angular range of z. B.180 °.
  • the effect of the draw roll 4 is best at high wrap. Therefore, the wrap of the draw roll can also be increased at the expense of the wrap of the embossing roll compared to designs without draw roll 4.
  • the film of the web 1 is irradiated with UV radiation, for example, so that an embossing lacquer applied to the film is cured and thus the microstructure elements transferred in the embossing machine are "frozen” firmly into the embossing lacquer.
  • the web 1 is fed via a deflection roller for further processing.
  • the endless film can be rewound onto a roll or cut to length or cut and stacked in the form of individual sheets.
  • the draw roll 4 is on one side, or preferably according to FIG 1b shows mounted on both sides, rotatable or pivotable. There is (each) a joint around which the draw roller 4 can be pivoted. On its other side, the draw roller 4 is suspended equally. In this case, for example, attacks a hydraulic cylinder, a lever mechanism or a spindle a suspension and moves them in any spatial directions, such as up or down, as the arrows in Fig. 1b Show.
  • Figure 1C shows the draw roll 4 in a view based on the Fig. 1a done from above.
  • the draw roll 4 has a roll body 14 which extends along an axis 15. This is unlike conventional rollers not straight, but curved.
  • the curvature is achieved in that the ends of the roller 4 are guided in a pillow block 16 and an abutment 17, which distort the roller in the curved shape.
  • the roller body 14 has a biaxially curved lateral surface due to this curvature.
  • the first curvature corresponds to that of a normal cylinder axis, ie in a section perpendicular to the axis 15, the lateral surface is circular, as well 1a shows. In the axis 15 contained section, the lateral surface is arcuate, such as Figure 1C shows.
  • the pillow block 16 and the anvil 17 are adjustable, as indicated by an arrow 19 in Figure 1C is illustrated schematically.
  • the roller rotates about its curved axis 15 (arrow 18).
  • Figure 1C shows an example also a stronger curvature (dashed line).
  • the angle between a plane in which the axis 15 has the maximum curvature, and the plane in which the web 1 is conveyed can be adjusted.
  • the draw roller 4 can thus be pivoted.
  • Fig. 1c In addition, such an adjustment is also shown (representation with 2-point 3-dash line).
  • FIG. 2 shows the draw roller 4 and the untilted position is shown in dashed lines.
  • Fig. 2b shows the initial state, ie the non-tilted drafting roller 4, whose axis of rotation in plan view of Fig. 2 thus is parallel to the axis of rotation of the embossing cylinder 3.
  • Embossed structures 10, which are applied by the embossing cylinder 3 on the endless foil, are aligned parallel to a print motif 9. If the draw roller 4 according to Fig. 2a tilted down, there is an overstretching of the continuous film to the right, based on the direction of the endless film. Due to the curvature of the axis 15, the overstretching does not increase evenly towards the edge, whereby distortions transversely to the conveying direction 2 are compensated.
  • Fig. 3 shows a further embodiment of the invention in a view similar to the Fig. 1a ,
  • the stamping mill that is in the 1a formed by the elements 3, 5 and 6, replaced by a Kaschierwerk 11, which laminates on the web 1, which carries the first components of the security element to be generated, an additional web 12, which carries second components of the security element.
  • the draw roll 4 is in turn suitably adjusted.
  • Fig. 3 are purely exemplary two drafting rollers 4 drawn, which act on two routes S. This makes a particularly exact adjustment possible. Of course you can Depending on the requirements, only one section S can be provided with the draw roller 4.
  • Fig. 3 shows by way of example further an optional measuring device 13b for measuring the position of the first components on the web 1 and optionally also the second components on the additional web 12.
  • a similar measuring device 13b can also be used in an embodiment with embossing, z. B. in the construction according to Fig. 1 come into use.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
  • Credit Cards Or The Like (AREA)
EP16001066.6A 2013-10-25 2014-10-17 Procédé et dispositif de fabrication d'un élément de sécurité Not-in-force EP3081516B8 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE201310017797 DE102013017797A1 (de) 2013-10-25 2013-10-25 Verfahren und Vorrichtung zum Herstellen eines Sicherheitselementes
EP14003565.0A EP2865625B1 (fr) 2013-10-25 2014-10-17 Procédé et dispositif de fabrication d'un élément de sécurité

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
EP14003565.0A Division EP2865625B1 (fr) 2013-10-25 2014-10-17 Procédé et dispositif de fabrication d'un élément de sécurité
EP14003565.0A Division-Into EP2865625B1 (fr) 2013-10-25 2014-10-17 Procédé et dispositif de fabrication d'un élément de sécurité

Publications (3)

Publication Number Publication Date
EP3081516A1 true EP3081516A1 (fr) 2016-10-19
EP3081516B1 EP3081516B1 (fr) 2018-02-14
EP3081516B8 EP3081516B8 (fr) 2018-09-12

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EP14003565.0A Not-in-force EP2865625B1 (fr) 2013-10-25 2014-10-17 Procédé et dispositif de fabrication d'un élément de sécurité
EP16001066.6A Not-in-force EP3081516B8 (fr) 2013-10-25 2014-10-17 Procédé et dispositif de fabrication d'un élément de sécurité

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DE (1) DE102013017797A1 (fr)

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Publication number Priority date Publication date Assignee Title
DE102015010744A1 (de) * 2015-08-17 2017-02-23 Giesecke & Devrient Gmbh Sicherheitselement, Verfahren zum Herstellen desselben und mit dem Sicherheitselement ausgestatteter Datenträger
DE102015015378A1 (de) * 2015-11-27 2017-06-01 Giesecke & Devrient Gmbh Prägevorrichtung zum Prägen von Mikro- oder Nanostrukturen
DE102015015407A1 (de) * 2015-11-27 2017-06-01 Giesecke & Devrient Gmbh Prägeverfahren zum Prägen von Mikro- oder Nanostrukturen
US20210370665A1 (en) * 2019-02-22 2021-12-02 Hewlett-Packard Development Company, L.P. Offset print apparatus and methods

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CN104553421A (zh) 2015-04-29
EP3081516B8 (fr) 2018-09-12
EP2865625B1 (fr) 2016-09-21
CN104553421B (zh) 2018-01-23
EP2865625A1 (fr) 2015-04-29
DE102013017797A1 (de) 2015-04-30
EP3081516B1 (fr) 2018-02-14

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