EP2448766B1 - Sicherheitselement und herstellungsverfahren dafür - Google Patents

Sicherheitselement und herstellungsverfahren dafür Download PDF

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Publication number
EP2448766B1
EP2448766B1 EP10726984.7A EP10726984A EP2448766B1 EP 2448766 B1 EP2448766 B1 EP 2448766B1 EP 10726984 A EP10726984 A EP 10726984A EP 2448766 B1 EP2448766 B1 EP 2448766B1
Authority
EP
European Patent Office
Prior art keywords
reflection layer
security element
embossing lacquer
motif
layer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP10726984.7A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2448766A1 (de
Inventor
Manfred Heim
Lars Hoffmann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Giesecke and Devrient GmbH
Original Assignee
Giesecke and Devrient GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Giesecke and Devrient GmbH filed Critical Giesecke and Devrient GmbH
Publication of EP2448766A1 publication Critical patent/EP2448766A1/de
Application granted granted Critical
Publication of EP2448766B1 publication Critical patent/EP2448766B1/de
Active 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
    • B42D25/20—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
    • B42D25/40—Manufacture
    • B42D25/405—Marking
    • B42D25/425—Marking by deformation, e.g. embossing
    • B42D2033/04—
    • B42D2033/18—
    • B42D2035/36—
    • 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
    • B42D25/328—Diffraction gratings; Holograms

Definitions

  • the invention relates to a security element and a manufacturing method thereof.
  • Items to be protected are often provided with a security element that allows verification of the authenticity of the item and at the same time serves as protection against unauthorized reproduction.
  • Items to be protected include, for example, security papers, identity and value documents (such as banknotes, chip cards, passports, identification cards, identity cards, stocks, bonds, certificates, vouchers, checks, tickets, credit cards, health cards, etc.) as well as product security elements such as security items. Labels, seals, packaging.
  • the security against forgery of a security element is particularly great if the security element on front and back shows perceptible motifs that are in a certain position to each other and / or difficult to imitate or copy.
  • the WO 2008/017362 A3 describes different production methods for optically variable films in which an optically variable motif (ie one dependent on the viewing condition, eg the viewing direction, dependent image) on the front and another on the back and a third motif when viewed in transmitted light or in Transmission view is visible.
  • the production methods involve topographically different structures and subsequent demetallization of metal layers as well as mask exposure methods, in which the front side information is a Form mask for the exposure of a reverse side.
  • the WO 2006/133863 A2 Different variants of optically variable patterns for a security element are known, which look different when viewing the front or back of the security element, so form different motifs.
  • the WO 03/053713 A1 ( DE 102 26 114 A1 ) describes a security element according to the preamble of claim 1, which is constructed on a plastic film and carries relief structures on both sides of the plastic films, which act as diffraction structures and, for example, as a hologram represent a motif.
  • the relief structures are further provided with metal layers which are structured by interruptions, so that additionally a suitable pattern, for example a letter or another alphanumeric character, can be recognized.
  • the structured metallization on the relief structures is designed as a reflective layer, so that the corresponding motif is visible in plan view.
  • the invention has for its object to provide a security element that shows different motifs on the front and back and yet is easy to manufacture, especially without consuming Passerieux. Furthermore, the security element should preferably also allow a subject to be perceived in a simple way when viewed through transmitted light.
  • a security element for security papers, documents of value or the like with a top and a bottom having carrier, a top mounted on the top embossing lacquer layer, in which an upper embossing structure is formed, mounted on the bottom, lower embossing lacquer layer in which a lower embossing structure is formed, wherein between the upper side of the carrier and the upper embossing lacquer layer, an upper reflection layer is arranged.
  • the object is further achieved by a value document with such a security element.
  • a production method for a security element for security papers, documents of value or the like in which a carrier having a top side and a bottom side is provided at the top with an upper reflective layer and therewith an upper embossing lacquer layer and at the bottom side with a lower embossing lacquer layer wherein an upper embossing pattern is formed in the upper embossing lacquer layer and a lower embossing structure is formed in the lower embossing lacquer layer.
  • the invention provides a surprisingly simple constructed security element, which has both a recognizable from the front side front motif, which is not visible from the back, and has a visible from the back back motif, which is imperceptible from the front. Since the front and back motifs are not visible from the other side, a registration of the two motifs to each other is not necessary. The separation of these two motifs is achieved in that the upper reflection layer is located between the upper embossing lacquer layer and the lower embossing lacquer layer. It causes a reflection of incoming light. Because unlike in the WO 03/053713 A1 the upper reflection layer does not directly rest on the embossed structure, as is the case with conventional hologram films, the front side motif can only be seen from the front and the back side motif only from the rear side.
  • the embossed structures preferably cooperate with the reflective layer, e.g. B. taking advantage of a diffractive or holographic effect. But there are also different acting embossed structures possible, for. B. microlenses, micro hollow mirror, sawtooth structures, matte structures, etc.
  • the upper reflective layer is to be executed over its entire surface.
  • This may be, for example, a full-surface metallization comprising aluminum, copper, iron, chromium, gold or silver, etc.
  • a printed glossy lacquer layer is also suitable as a reflection layer.
  • various reflective layers can also be combined to impart a desired visual appearance, such as a desired color effect, to the front motif and back motif, respectively.
  • embossing of the upper embossed structure or the lower embossed structure is preferably carried out with commercially available embossing lacquers, as used for example as heat sealing lacquers in the DE 102004035979 A1 are described, the disclosure of which is fully incorporated in this regard.
  • embossing lacquers as used for example as heat sealing lacquers in the DE 102004035979 A1 are described, the disclosure of which is fully incorporated in this regard.
  • thermoplastic, electron beam-curing or UV-curing embossing systems are suitable.
  • embossing lacquer layer Since at least one embossing lacquer layer has to be anchored directly on the support, which can be embodied, for example, as a film, a good adhesion of the embossing lacquer layer usually between 1 ⁇ m and 10 ⁇ m, preferably between 1.5 ⁇ m and 4 ⁇ m, is desirable. This can be achieved by the use of carrier materials, eg. As film material can be achieved with suitable pretreatment. Examples include an acrylate coating in combination with a corona treatment prior to application of the embossing lacquer or the printing of adhesion-promoting primers.
  • embossing lacquer Due to the then good adhesion of the embossing lacquer to the carrier, a pure casting process can be used for embossing, in which the embossing lacquer is pressed into an embossing cylinder without further pretreatment. In this way, one obtains an optimal reproduction of an embossed structure, resulting from a very good image of the embossing tool. Brilliant embossed motifs are the result.
  • the top and / or the bottom is provided with a Regelackhaftung improving treatment / are. It is also preferred if the upper and / or the lower embossing lacquer layer has a UV-curing embossing lacquer.
  • Such UV embossing lacquers have the further advantage that they are particularly well suited as an acceptance layer for offset and steel stitch paints. They can thus serve as background for banknote printing coverage with offset or steel stitch colors. A naturally otherwise possible at any time pressure receiving layer on one side of the security element can then be omitted.
  • the reflection layer is flat, which improves its reflection properties.
  • it is well protected by the carrier and the overlying embossing lacquer layer. Thus one achieves a good chemical resistance and resistance against scratching.
  • the motif perceivable by the top embossing structure from the top can be formed in the form of a hologram, as can the motif perceivable from the bottom, which provides the bottom embossing structure.
  • the interaction of embossing structure and reflection layer can advantageously be provided with a color effect if a color layer is provided between the embossing structure and the reflection layer. Then, the corresponding motif provided by the upper and lower embossing patterns, respectively, is affected by the color layer because the reflective radiation is colored.
  • a hologram can z. B. be provided with a color effect.
  • the protection by the security element can be increased further if the upper reflection layer is structured with an upper motif, which is then visible in transmitted light observation in combination with an at least partially transparent or translucent support.
  • the upper reflection layer is not carried out over the entire surface, but provided with motif-dependent interruptions or openings.
  • motif-dependent interruptions or openings In the case of a metallic reflection layer, this can be done, for example, by demetallization using technologies known to the person skilled in the art (etching technology and washing process).
  • etching technology and washing process technologies known to the person skilled in the art
  • the required printing ink is printed in the form of a fine motif.
  • the separation of the embossed motifs through the openings in the reflection layer can be impaired in principle.
  • the structure of the openings / interruptions is formed with a sufficient fineness. Additionally or optionally, one can improve this separation by the carrier is only translucent, but not transparent.
  • another reflective layer may be applied and patterned between the underside of the carrier and the lower embossing lacquer layer which offers further possibilities in the case of transmitted light reflection, since the motifs of this lower reflection layer and the upper reflection layer then form a combination motif in transmitted light viewing.
  • the above-mentioned color effect can also be produced when structuring the upper and / or the lower reflection layer. This is particularly easy if the respective reflection layer is produced by means of an etching process.
  • a protective lacquer is printed, which covers the reflection layer (for example, a metallization) at those locations where no opening or interruption is to be incorporated, and protects against the etchant, for example, an etchant.
  • This protective coating typically remains on the patterned reflective layer, that is n those portions of the reflection layer which was not removed in the etching process.
  • this protective varnish is colored, then it is achieved that the motif produced by the respective embossing lacquer layer in connection with the reflection layer also has a color effect, eg, a color effect.
  • a color effect eg, a color effect.
  • B. is colored. At the same time, this color effect does not occur in transmitted light or when viewed from the other side.
  • the lower motif is in each case a grid structure, z.
  • the use of a modulated line grid wherein a line width between 20 microns and 200 microns, preferably between 50 microns and 150 microns can be used varying. It has been shown that disturbing moiré effects or locally different transmission properties can then be easily avoided if the two line grids are at an angle between 80 ° and 100 ° to each other. It is therefore preferred that the lower motif and the upper motif each by a grid structure, for. B.
  • a modulated line grid are generated, wherein the line direction of the upper motif is preferably crossing, in particular at an angle of 60 ° to 120 °, preferably 70 ° to 110 °, more preferably from 80 ° to 100 ° to the line direction of the lower motif.
  • Such crossed line grids interfere with each other especially little or not at all and allow in the fürsichtstruck particularly good and clearly recognizable motives.
  • the raster elements of the upper and lower reflective layers can advantageously also be designed so that the resulting transmitted light motif is dependent on the viewing angle.
  • this can be achieved in that the screening of the upper and the lower reflection layer have different screen widths. Then moiré-magnified images emerge in the transmitted light, the appearance of which depends on the viewing angle.
  • a known shading grid can be used, for example by a raster structure containing no motif. At certain viewing angles, this raster structure then shades the raster structure of the other reflection layer in which the motif is modulated.
  • the desired see-through effect can in principle be achieved by any screening, which on the one hand is so small in fineness that the grid elements are not noticeable to the eye and on the other hand in their average Surface coverage are locally modulated so that the / the viewing motives is / is visible.
  • either the density of the raster elements and / or the size of the raster elements can be modulated.
  • the fineness of the rastering ensures that the upper or lower reflection layer continues to fulfill its function in connection with the embossing structure lying above it in the viewing direction.
  • the security element may in particular be designed as a security thread, tear-open thread, security strip, security strip, patch or as a label for application to a security paper, value document or the like.
  • the security element can span transparent areas or recesses.
  • security paper is understood here in particular as the precursor that can not be processed to a value document which, in addition to the security element according to the invention, may also have further authenticity features (such as, for example, luminescent substances provided in the volume).
  • Value documents are here understood, on the one hand, documents produced from security papers.
  • value documents can also be other documents and objects which can be provided with the security feature 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 reciprocal The characteristic of the translucency is the opacity.
  • the production method according to the invention can be developed so that the described preferred embodiments and embodiments of the security element are produced.
  • a security element 1 is integrated in a banknote 2 in such a way that the security element 1 is located both from the in Fig. 1 shown front side of the banknote 2 and from the back of the banknote 2 is visible.
  • the security element 1 provided on the banknote 2 can also be part of a security thread 19 of the banknote which, as in FIG Fig. 1 shown as an example, is usually woven into the paper of the banknote 2, he s partly on the front (in Fig. 1 visible side) and partly visible on the back of the banknote. It is also possible for the security element 1 to be arranged at least partially via a window 20 provided in the banknote 2. Of course, these possibilities are only examples of the use of the security element 1 described below, which of course can also be used in other ways for copying or imitation protection of a protected object.
  • Fig. 2 shows a sectional view through the security element 1 along the line AA of Fig. 1 .
  • a carrier 3 which can be realized for example by a plastic film. This plastic film may be transparent or even translucent, as will be explained later.
  • suitable adhesion promoters 6 and 7 are attached to the carrier 3, which ensure that the following layers have a strong adhesion to the carrier 3.
  • the adhesion promoter 6 or 7 can on the one hand by a suitable pretreatment of the carrier or use of films suitable coating, such. As acrylate coating in combination with corona treatment, or by printing of adhesion-promoting primers can be achieved. Subsequently, a reflection layer 8 is applied to the top surface 4 of the carrier 3 provided with adhesion promoter 6.
  • This is preferably a reflective layer, for example, by a metallization (eligible, for example, aluminum, copper, iron, chromium, Gold, silver, etc. with optical densities between 1.38 and 4.5 oD, preferably between 1.8 and 3.0 oD) is realized.
  • a metallization eligible, for example, aluminum, copper, iron, chromium, Gold, silver, etc. with optical densities between 1.38 and 4.5 oD, preferably between 1.8 and 3.0 oD
  • a printed glossy lacquer layer is possible.
  • various reflective layers may be combined to produce desired optical phenomena of the motifs presented by the security element 1 to the observer, as will be explained below.
  • embossing lacquer layer 9 or an embossing lacquer layer 10 is then applied to the reflection layer 8 and to the underside 5 of the carrier 3 provided with adhesion promoter 7.
  • the embossing lacquer layers 9, 10 thus obtained are now provided with an upper embossing structure 11 or a lower embossing structure 12. Due to the good adhesion of the embossing lacquer layers 9, 10 on the upper side 4 or lower side 5 of the carrier 3, the embossing lacquer structures 11 and 12 can be pressed without further pretreatments with an embossing cylinder.
  • the embossed structures realize, in connection with the reflective reflection layer 8, a top-side embossing motif or a bottom-side embossing motif, which is visible when viewed from the front side VS or when viewed from the rear side RS.
  • different motifs of the front side VS and the rear side RS can be used. If one of the two sides of the security element 1 is to be printed, this can be done directly on the embossing lacquer 9 or 10 if a UV embossing lacquer is used for this purpose. This is suitable as an acceptance layer for offset and steel engraving inks. Print acceptance layers, which would require several operations for the application, are therefore no longer necessary.
  • Fig. 3 shows a development of the security element of Fig. 1 , wherein the layer structure essentially the basis of Fig. 2 explained corresponds.
  • the reflection layer 8 is now additionally provided with a reflection layer structure provided, which causes a motive.
  • the reflection layer is not over the entire surface on the upper side 4 of the carrier 3, but has a motif-forming varying opacity, ie a pattern. This can be z. B. be generated by a screening.
  • the grid density of the grid structure or structuring of the reflection layer 8 is chosen so that the structure and the motive caused by it when viewing from the front side VS and the back RS is not or very little noticeable.
  • this structure can be achieved, for example, by demetallization with known technologies (etching technology and washing method). If a printed reflection layer 8 is used, the motif is already produced during printing by application of the printing ink.
  • the security element 1 of Fig. 3 thus, it has an upper embossing structure 11, which provides an embossed motif, which is visible from the direction of the front side VS forth. From the back RS fro another embossed motif can be seen, which causes the lower embossing structure 12.
  • the security element 1 is viewed in transmitted light, for example under illumination from the rear side RS and in viewing from the front side VS, one recognizes the pattern and thus the structure in the reflection layer 8 and the motive caused thereby. Thus, as a third security feature the appearing in review motif in the reflection layer 8 is formed.
  • Fig. 4 shows a development of the security element 1 of Fig. 3 , wherein now also on the underside 5 of the carrier 3, a lower reflection layer 14 is provided, which is provided with a lower reflective layer structure.
  • the two reflection layer structures of the upper reflection layer 8 and the upper reflection layer 14 cooperate.
  • plan view in particular in an oblique plan view, however, one not only sees the embossed motifs produced by the embossing structures 11 and 12, but may additionally also recognize the pattern in the upper or lower reflection layer 8, 14, of course different patterns in the structure can be incorporated.
  • security element 1 provides a total of five different motifs.
  • security features nor in plan view, especially in oblique plan view, recognizable motifs through the upper reflective layer 8 and the lower reflection layer 14th
  • the structures of the upper reflection layer 8 and the lower reflection layer 14 cooperate when the security element 1 is viewed in transmitted light.
  • a line width rastering can be used, preferably with a line width between 20 ⁇ m and 200 ⁇ m, particularly preferably between 50 ⁇ m and 150 ⁇ m.
  • FIG. 5 schematically shows the upper reflection layer structure 15 in the upper reflection layer 8 of Fig. 4
  • FIG. 12 shows the lower reflection layer structure 18 in the lower reflection layer 14 of FIG Fig. 4
  • the upper reflection structure 15 in Fig. 5 two top motifs 16 and 17 are shown, which are visually recognizable when viewing the security element 1 from the front side VS in addition to the embossing motif, which is introduced into the embossing lacquer layer 9 by the upper embossing structure 11.
  • no motif is drawn for the lower reflection structure 18.
  • FIG Fig. 7 shows, depending on the registration, a more or less large disturbance of the perceptibility of the upper motifs 16 and 17.
  • the carrier 3 can be made transparent. Then the image appearing in transmitted light is particularly clear. If one uses only a translucent carrier 3, the separation of the image formed by the front side VS by the embossing structure 11 from the image produced at the rear side RS by the lower embossing structure 12 increases at the expense of the quality of the transmitted light image.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Business, Economics & Management (AREA)
  • Accounting & Taxation (AREA)
  • Finance (AREA)
  • Credit Cards Or The Like (AREA)
EP10726984.7A 2009-07-01 2010-06-30 Sicherheitselement und herstellungsverfahren dafür Active EP2448766B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009031386A DE102009031386A1 (de) 2009-07-01 2009-07-01 Sicherheitselement und Herstellungsverfahren dafür
PCT/EP2010/059301 WO2011000877A1 (de) 2009-07-01 2010-06-30 Sicherheitselement und herstellungsverfahren dafür

Publications (2)

Publication Number Publication Date
EP2448766A1 EP2448766A1 (de) 2012-05-09
EP2448766B1 true EP2448766B1 (de) 2013-08-14

Family

ID=42628516

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10726984.7A Active EP2448766B1 (de) 2009-07-01 2010-06-30 Sicherheitselement und herstellungsverfahren dafür

Country Status (5)

Country Link
EP (1) EP2448766B1 (es)
AU (1) AU2010268080B2 (es)
DE (1) DE102009031386A1 (es)
MX (1) MX2012000032A (es)
WO (1) WO2011000877A1 (es)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3501840A1 (de) 2017-12-21 2019-06-26 Giesecke+Devrient Currency Technology GmbH Verfahren zum herstellen eines mehrschichtigen foliensicherheitselements

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011100979A1 (de) * 2011-05-10 2012-11-15 Giesecke & Devrient Gmbh Sicherheitselement und mit demselben ausgestatteter Datenträger
DE102015100520A1 (de) * 2015-01-14 2016-07-28 Leonhard Kurz Stiftung & Co. Kg Mehrschichtkörper und Verfahren zu dessen Herstellung
DE102015008971A1 (de) * 2015-07-10 2017-01-12 Giesecke & Devrient Gmbh Sicherheitselement und Datenträger
CN110341335B (zh) * 2019-08-07 2020-12-11 武汉华工图像技术开发有限公司 一种全息定位烫印膜及其制备方法
DE102021001582A1 (de) * 2021-03-25 2022-09-29 Giesecke+Devrient Currency Technology Gmbh Optisch variables Sicherheitselement, Herstellungsverfahren und Prägeanordnung

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0657297B2 (en) * 1993-12-10 2003-04-23 Agfa-Gevaert Security document having a transparent or translucent support and containing interference pigments.
EP0967091A1 (de) * 1998-06-26 1999-12-29 Alusuisse Technology & Management AG Gegenstand mit optischem Effekt
DE10226114A1 (de) * 2001-12-21 2003-07-03 Giesecke & Devrient Gmbh Sicherheitselement für Sicherheitspapiere und Wertdokumente
DE102004022391A1 (de) * 2004-05-06 2005-12-01 Giesecke & Devrient Gmbh Kartenschichtverbund
DE102004035979A1 (de) 2004-07-14 2006-02-02 Giesecke & Devrient Gmbh Sicherheitselement und Verfahren zu seiner Herstellung
DE102005027380B4 (de) 2005-06-14 2009-04-30 Ovd Kinegram Ag Sicherheitsdokument
FR2893424B1 (fr) * 2005-11-16 2008-01-25 Arjowiggins Soc Par Actions Si Structure optique, notamment pour un document de securite et/ou de valeur.
DE102006037431A1 (de) 2006-08-09 2008-04-17 Ovd Kinegram Ag Verfahren zur Herstellung eines Mehrschichtkörpers sowie Mehrschichtkörper
DE102007039996B4 (de) * 2007-02-07 2020-09-24 Leonhard Kurz Stiftung & Co. Kg Sicherheitselement für ein Sicherheitsdokument und Verfahren zu seiner Herstellung
DE102008029158A1 (de) * 2007-12-21 2009-06-25 Giesecke & Devrient Gmbh Sicherheitselement

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3501840A1 (de) 2017-12-21 2019-06-26 Giesecke+Devrient Currency Technology GmbH Verfahren zum herstellen eines mehrschichtigen foliensicherheitselements

Also Published As

Publication number Publication date
MX2012000032A (es) 2012-04-19
WO2011000877A1 (de) 2011-01-06
EP2448766A1 (de) 2012-05-09
AU2010268080B2 (en) 2015-05-21
DE102009031386A1 (de) 2011-01-05
AU2010268080A1 (en) 2012-01-19

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