EP2769016B1 - Toile d'égouttage et procédé de fabrication d'une toile d'égouttage - Google Patents

Toile d'égouttage et procédé de fabrication d'une toile d'égouttage Download PDF

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Publication number
EP2769016B1
EP2769016B1 EP12772887.1A EP12772887A EP2769016B1 EP 2769016 B1 EP2769016 B1 EP 2769016B1 EP 12772887 A EP12772887 A EP 12772887A EP 2769016 B1 EP2769016 B1 EP 2769016B1
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EP
European Patent Office
Prior art keywords
paper
plastic
insert
dewatering screen
insert element
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
EP12772887.1A
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German (de)
English (en)
Other versions
EP2769016A1 (fr
Inventor
André Gregarek
Andreas HÄNELT
Bernhard Wiedner
Günther WILD
Andreas Aigner
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
Priority to PL12772887T priority Critical patent/PL2769016T3/pl
Publication of EP2769016A1 publication Critical patent/EP2769016A1/fr
Application granted granted Critical
Publication of EP2769016B1 publication Critical patent/EP2769016B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F1/00—Wet end of machines for making continuous webs of paper
    • D21F1/44—Watermarking devices
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F11/00—Processes for making continuous lengths of paper, or of cardboard, or of wet web for fibre board production, on paper-making machines
    • D21F11/008—Making apertured paper

Definitions

  • the invention relates to a dewatering screen for the production of paper with at least one security feature.
  • the invention also relates to a method for producing such a dewatering screen and to a method for producing paper with a security feature using such a dewatering screen.
  • Security features introduced in papermaking have typical characteristics.
  • through openings which are produced in papermaking contain characteristic irregularities in the edge region, which are produced by irregular deposition of fibers in the edge region and by individual fibers protruding into the opening, as for example in the document WO 03/054297 described.
  • DE 10 2006 058 513 A1 discloses a dewatering screen for the production of paper with multi-level watermark, with a support screen, which has a multi-level relief in the form of the watermark to be generated in a partial area.
  • the multi-level relief is formed by an injection-molded perforated watermark insert.
  • the present invention seeks to provide a Enticass mecanicssieb of the aforementioned type, which avoids the disadvantages of the prior art.
  • the dewatering screen is intended to allow easy production of paper with security features, and ideally to allow a registered combination of security features with different visual appearances.
  • the security features generated in the invention include in particular watermarks, sharply edged holes in the paper and holes with characteristic irregularities in the edge region.
  • the dewatering screen is designed to produce several security features in the paper, each of which may have different visual appearances, but still because of the simultaneous generation stand in the register in the paper production and the very good tolerances when insert molding or injection molding.
  • Several security features may in particular relate to each other or complement each other. For example, a first security feature can repeat the form or shape of a second security feature or supplement it to a total information.
  • a plurality of different insert elements can be integrated into a carrier screen for producing such security features by the plastic encapsulation or plastic injection molding according to the invention, in particular also those insert elements, which due to their material properties or shape with conventional techniques not in the have the desired carrier screen integrated.
  • the invention thus provides, for example, in cases where the mesh of the support wire and the insert element made of different materials.
  • the screen cloth and the insert element may be made of different metals, such as a bronze screen cloth and a steel insert member.
  • the support screen may be made of metal and the insert element made of plastic, or conversely, the support screen made of plastic and the insert element made of metal.
  • the insert element comprises a sieve element whose material and / or mesh size differs from the sieve cloth of the carrier sieve.
  • the sieve element can be embossed in particular.
  • the screen fabric of the carrier screen is a pure plastic fabric, while the screen element comprises a bronze screen, in particular an embossed bronze screen.
  • the insert element comprises an E-type or a watermark insert, in particular a tapered E-type or a multi-level watermark insert.
  • Such insert elements can be advantageously formed of steel. Insertion elements, for example made of steel, can not easily be connected with conventional bronze mesh by conventional techniques. The invention provides a remedy and allows to combine the advantageous properties of a bronze support wire and E types or steel watermark inserts with each other.
  • the insert element comprises a pointed frame, for example a pointed steel frame, for producing a sharply edged hole in the paper.
  • a pointed frame for example a pointed steel frame
  • the sharply edged holes can also be accurately combined with other papermaking security features, in particular with watermarks and / or holes with characteristic irregularities in the edge region.
  • the insert element comprises a metal plate and / or a plastic plate, in particular of water-repellent plastic.
  • a plastic tile made of water-repellent plastic For example, it may be disposed inside an above pointed steel frame to assist in the formation of holes.
  • the metal plate or the plastic plate is provided with a multiplicity of perforations, the dimensions of which are preferably so small that they do not adhere to fibers during papermaking.
  • a thinned paper area can be created by a bronze plate with a reduced perforation density.
  • the metal or plastic plate may also be imperforate, if it is to support about the formation of holes.
  • the carrier screen of the dewatering screen may also include a magnetic element with which magnetic fibers and / or magnetic additives in the pulp may be affected during sheet formation.
  • magnetic fibers may be aligned along the magnetic field lines of the magnetic element and fixed in their aligned orientation upon drying to provide a security feature in the form of a magnetic portion in the paper.
  • the magnetic element can also lead to a targeted accumulation or depletion of magnetic additives in certain paper areas.
  • the magnetic element can be advantageously contained in the insert element, for example in the form of a perforated permanent magnet.
  • the magnetic element may also be formed by magnetic additives in the plastic encapsulation or the plastic back-injection.
  • the magnetic element can also be arranged on inserted threads.
  • the plastic encapsulation or the plastic back-injection on a surface relief for generating a two- or multi-level watermark in the paper Since the encapsulation or back-injection generally runs around the insert element, the security features generated by the insert element itself can be combined with another security feature in the form of a two- or multi-level frame watermark.
  • the plastic overmoulding or the plastic backmolding can be provided with a multiplicity of perforations, the dimensions of which are preferably so small that no fibers adhere to them in the papermaking process.
  • the insertion region may in particular be formed by a cut-out portion of the screen fabric.
  • two or more of the concrete embodiments described are combined in an insert element in order to simultaneously produce a plurality of security features that stand in very good or even perfect register in papermaking.
  • the plastic encapsulation or the plastic back-injection is preferably provided with a multiplicity of perforations whose dimensions are so small that no fibers adhere to them in the papermaking process.
  • the perforations can be generated by means of a laser beam, preferably by means of an infrared laser.
  • the invention also includes a method for producing a paper having at least one security feature, in which the paper attachment takes place on a dewatering screen of the type described.
  • a sharp-edged hole is produced in the paper as a security feature.
  • a hole with characteristic irregularities in the edge region and / or a watermark in the paper is produced as a security feature.
  • Particular advantages are offered by a process control in which a sharply edged hole is produced in the paper as the first security feature and in which a hole with characteristic irregularities in the edge region and / or a watermark in the paper is produced as a second security feature, the first and second Security feature to each other in the register.
  • Such designs are visually attractive due to the combination of different security features and offer a high security against counterfeiting.
  • Fig.1 shows a schematic representation of a banknote 10 with a complex combination 12 of several security features.
  • the banknote 10 contains a finely structured hole 16 with a sharply delimited rim in the form of a rider, which is surrounded by a very thin paper area 15 and this by a high resolution frame watermark 14.
  • the finely structured hole 16, the thin paper area 15 and the frame watermark 14 have very low register tolerances due to the overmolding or backmolding technology used.
  • Such complex combinations of security features 14, 15, 16 can not already be produced by conventional methods in papermaking.
  • the production of a hole with a sharply defined edge and fine contour structure, such as the hole 16 of the Fig.1 a separate step by laser cutting or punching.
  • relatively high register tolerances arise between the hole produced by punching or laser cutting and a watermark generated during papermaking.
  • These passport tolerances limit the practical watermark / hole designs significantly, since The designer must already take into account the pass tolerances when designing the design.
  • the security paper of the banknote 10 is produced by using a dewatering screen described in more detail below, whereby both the finely structured hole 16 and the thin paper area 15 and the high-resolution frame watermark 14 can already be produced in papermaking and in almost perfect register.
  • the dewatering screen 20 comprises a support screen 22 with a screen mesh 24 which is cut out in a partial region 30.
  • the screen fabric 24 has at least one system of interwoven, longitudinally extending warp threads 26 and weft threads 28 extending transversely thereto.
  • the screen fabric may contain, for example, a metal fabric, in particular a bronze fabric, a metal-plastic mixed fabric, in particular a bronze-plastic blended fabric or a pure plastic fabric.
  • the support screen 22 may comprise a single-layer or multi-layer screen fabric, wherein for the sake of simplicity, only one single-layer screen fabric is shown in the figures.
  • an insert element 32 for generating at least one security feature 14,15,16 is arranged in the security paper, wherein the insert member 32 is connected by a plastic extrusion coating 34 with the support screen 22.
  • Fig. 2 (b) shows a modification of the basic form of Fig. 2 (a) in which the insert element 32 by a plastic injection back 36 with the support beam 22nd connected is.
  • the insert element 32, the plastic encapsulation 34 or plastic back injection 36, or even both elements are provided with perforations to ensure the dewatering in papermaking in these areas.
  • the dimensions of the perforations are chosen so small that they do not adhere to fibers in paper production.
  • the screen fabric 24 is not cut out, but has only one insertion region, in which the insert element is arranged.
  • the screen fabric during encapsulation behind the insert element and the back injection in or behind the back injection continue.
  • the carrier screen 40 has a bronze screen mesh 42.
  • an insert member 44 is arranged, which contains a steel plate 46 with a tapered steel E-type 48.
  • the insert element 44 is connected by a plastic encapsulation 34 with the support screen 40.
  • a steel insert 44 with a tapered steel E-type 48 can not readily be welded to a bronze screen 42 due to the diversity of materials.
  • a connection by means of electric welding fails because of the pointed E-Type 48 on the diversity of the surfaces to be joined.
  • a solder joint of the steel insert element 44 with the bronze screen fabric 42 would be possible in principle, but fine soldering decompose in the acidic environment of the paper pulp, and there is also the danger that the mesh of the screen fabric 42 are closed by the solder paste.
  • Fig. 4 shows a further embodiment in which the carrier screen 40 also has a bronze screen mesh 42.
  • an insert element 50 is arranged, which contains a pointed steel frame 52. With the pointed steel frame 52, a hole 16 with a sharp edge is already produced in papermaking, such as in Fig.1 illustrated.
  • the insert element 50 with the steel frame 52 is connected to the carrier screen 40 by a plastic encapsulation 34.
  • the steel frame 52 can not be integrated into the bronze carrier screen 40 for the reasons stated above.
  • the insert element within the steel frame additionally contain a plastic plate 54 made of a water-repellent plastic. Such a measure is particularly useful when only smaller holes are to be produced with the steel frame 52.
  • the insert element integrated in the carrier screen 60 is formed by a screen element 64 whose material and / or mesh size differs from the screen fabric 62 of the carrier screen 60.
  • the carrier screen 60 may contain a pure plastic screen cloth 62 and the screen element 64 may be formed by a bronze screen with an embossment 66 which is connected to the carrier screen 60 by the plastic extrusion coating 34.
  • embossing 66 can nevertheless be integrated into a plastic screen cloth 62, which itself can not be embossed, in a simple manner.
  • Fig. 6 shows a complex embodiment in which the insert element 72 of the Entskysssiebs 70 is designed for the simultaneous generation of several different security features.
  • Fig. 6 (a) shows a cross section and Fig. 6 (b) a plan view of the dewatering screen 70. The visual appearance of the formed paper 90 is in Fig. 6 (c) shown.
  • FIGS. 6 (a) and (b) contains the dewatering screen 70 as the dewatering screen 20 of the Fig. 2 a support screen 22 with a cut out in a portion 30 screen mesh 24 made of bronze.
  • an insert element 72 is arranged, which is connected by a plastic encapsulation 80 with the support screen 22.
  • the plastic encapsulation 80 has in this embodiment multi-level surface relief 82 and is also provided to ensure drainage during sheet formation with a variety of perforations.
  • the plastic overmold 80 runs around the edge of the insert member 72, it forms a perforated injection molding frame which, in papermaking, creates a multi-level frame watermark 94 in the paper 90 due to its multi-level surface relief 82 which includes the security features created by the insert member 72 in Fig. 6 (c) shown.
  • the insert element 72 itself contains an only slightly perforated bronze sheet 74, which produces a very thin paper area 96 due to the low perforation density and its smooth surface in papermaking.
  • a pointed steel frame 76 for creating a hole 98 with a sharp edge (FIG. Fig. 6 (c) ) intended.
  • the steel frame 76 may be discontinued down so that it does not come into contact with the dandy or the take-off roll.
  • a plate 78 is disposed of water-repellent plastic, which supports the hole production.
  • the connection between the bronze plate 74, the steel frame 76 and the plastic plate 78 can be done, for example, by gluing, welding, stapling or any other conventional method.
  • the paper 90 produced by the dewatering screen 70 outside the frame watermark 94 displays a vellum region 92 of normal paper thickness.
  • the frame watermark 94 has a multi-stage design, the appearance of which is given by the multi-level surface relief 82 of the plastic encapsulation 80.
  • a vellum region 96 is very small Paper thickness, which is produced by the small perforated bronze sheet 74, and within this thin Velin Studs 96 is a finely structured, sharply edged hole 98 in the form of a rider arranged.
  • all these different security elements are produced simultaneously in papermaking. Their manufacture does not require separate operations, such as a laser cutting or stamping step.
  • the security features due to the common generation by the insert element to each other very well in the register. In particular, there are no register fluctuations between the frame watermark 94 and the sharply edged hole 98, so that the two elements can be aligned as desired.
  • magnetic elements can also be integrated into a carrier screen.
  • the perforated permanent magnet 102 is connected to the carrier screen 22 by a plastic encapsulation 34.
  • the plurality of perforations 104 ensure drainage in the area of the permanent magnet 102. Due to the magnetic field of the permanent magnet 102, magnetic components of the pulp are specifically influenced during sheet formation.
  • the pulp may include magnetic fibers that are aligned with the sheet formation along the magnetic field lines of the permanent magnet 102. During drying of the paper web, the magnetic fibers are then permanently fixed in their aligned orientation.
  • Fig. 8 shows a plan view of a with the dewatering screen 100 of Fig. 7 produced paper 110 with a magnetic security feature.
  • a crescent-shaped portion 112 which was directly above the permanent magnet 102 during paper production, magnetic fibers contained in the pulp were aligned while the magnetic fibers in the surrounding paper portion 114 were disordered.
  • the different orientation of the magnetic fibers can be detected on the finished paper 110, for example with a magnetic sensor.
  • subregion 112 may also differ visually from surrounding region 114.
  • the pulp may contain magnetic, colored or fluorescent additives that are attracted or repelled by the permanent magnet 102, so that the concentration of these additives in the subregion 112 differs from the concentration in the surrounding region 114.
  • Magnetic elements need not be included in the insert element 32, they may also be formed by magnetic additives in the plastic encapsulation 34 and the plastic injection back 36. They also do not have to be integrated into the uppermost sieve layer 24 of the support screen 22, but can also be arranged in a deeper sieve layer or in the interior of the round sieve. For example, they can also be on the threads that are inserted. Magnetic elements can be combined with all previously described designs.

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  • Paper (AREA)

Claims (20)

  1. Toile d'égouttage (20) destinée à la fabrication de papier avec au moins un élément de sécurité, avec
    - un tamis support (22), qui contient une gaze métallique (24) avec une zone d'insertion,
    - un élément d'insertion (32) disposé dans la zone d'insertion de la gaze métallique pour produire au moins une caractéristique de sécurité dans le papier, et
    - une injection de plastique autour (34) ou derrière (36) l'élément d'insertion (32), reliant l'élément d'insertion (32) au tamis support (22).
  2. Toile d'égouttage selon la revendication 1, caractérisée en ce que la gaze métallique (24) du tamis support (22) et l'élément d'insertion (32) sont composés de matériaux différents, en particulier en ce que la gaze métallique et l'élément d'insertion sont composés de métaux différents ou en ce qu'un des éléments tamis support et élément d'insertion est composé de métal et l'autre élément de matière plastique.
  3. Toile d'égouttage selon la revendication 1 ou 2, caractérisée en ce que l'élément d'insertion (32) comprend un élément de tamisage (64), dont le matériau et/ou l'ouverture de maille se différencie de la gaze métallique du tamis support.
  4. Toile d'égouttage selon la revendication 3, caractérisée en ce que l'élément de tamisage (64) est gaufré.
  5. Toile d'égouttage selon la revendication 3 ou 4, caractérisé en ce que la gaze métallique (24) du tamis support (22) est un pur tissu de plastique et l'élément de tamisage (64) comprend un tamis en bronze, en particulier un tamis en bronze gaufré.
  6. Toile d'égouttage selon au moins l'une quelconque des revendications 1 à 5, caractérisée en ce que l'élément d'insertion (32) comprend un type E (48) ou une insertion en filigrane, en particulier un type E conique ou une insertion en filigrane multiétagée.
  7. Toile d'égouttage selon au moins l'une quelconque des revendications 1 à 6, caractérisée en ce que l'élément d'insertion (32) comprend un cadre pointu (52) pour produire un trou à bord net (16) dans le papier.
  8. Toile d'égouttage selon au moins l'une quelconque des revendications 1 à 7, caractérisée en ce que l'élément d'insertion comprend une plaquette métallique et/ou une plaquette en plastique (54), en particulier en plastique hydrofuge.
  9. Toile d'égouttage selon la revendication 8, caractérisée en ce que la plaquette métallique et/ou la plaquette de plastique (54) sont dotées d'une pluralité de perforations, dont les dimensions sont de préférence si petites qu'aucune fibre n'adhère dans celles-ci lors de la fabrication du papier.
  10. Toile d'égouttage selon au moins l'une quelconque des revendications 1 à 9, caractérisée en ce que le tamis support (22) contient un élément magnétique, de préférence, en ce que l'élément d'insertion (32), l'injection de plastique autour (34) ou derrière (36) contient l'élément magnétique ou en ce que l'élément magnétique est disposé sur des fibres injectées.
  11. Toile d'égouttage selon au moins l'une quelconque des revendications 1 à 10, caractérisée en ce que l'injection de plastique autour (34) ou derrière (36) comporte un relief superficiel (82) pour produire un filigrane à deux ou plusieurs étages dans le papier.
  12. Toile d'égouttage selon au moins l'une quelconque des revendications 1 à 11, caractérisée en ce que l'injection de plastique autour (34) ou derrière (36) est dotée d'une pluralité de perforations dont les dimensions sont de préférence si petites qu'aucune fibre n'adhère dans celles-ci lors de la fabrication du papier.
  13. Toile d'égouttage selon au moins l'une quelconque des revendications 1 à 12, caractérisée en ce que la zone d'insertion est une zone partielle (30) découpée de la gaze métallique (24).
  14. Procédé destiné à la fabrication d'une toile d'égouttage (20) pour la fabrication du papier, pour lequel
    - un tamis support (22) est préparé, qui contient une gaze métallique (24) avec une zone d'insertion,
    - un élément d'insertion (32) pour la production d'au moins une caractéristique de sécurité dans le papier est disposé dans la zone d'insertion de la gaze métallique, et
    - l'élément d'insertion (32) est une injection de plastique autour ou derrière, pour relier l'élément d'insertion au tamis support (22).
  15. Procédé selon la revendication 14, caractérisé en ce que l'injection de plastique autour (34) ou derrière (36) est dotée d'une pluralité de perforations, dont les dimensions sont si petites qu'aucune fibre n'adhère dans celles-ci lors de la fabrication du papier.
  16. Procédé selon la revendication 15, caractérisé en ce que les perforations sont produites au moyen d'un rayon laser, de préférence au moyen d'un laser à infrarouge.
  17. Procédé destiné à la fabrication d'un papier avec au moins une caractéristique de sécurité, pour lequel l'accumulation de papier sur une toile d'égouttage a lieu selon l'une quelconque des revendications 1 à 13.
  18. Procédé selon la revendication 17, pour lequel un trou à bord net (16) est produit dans le papier en tant que caractéristique de sécurité.
  19. Procédé selon la revendication 17, pour lequel un trou (16) est produit en tant que caractéristique de sécurité avec des irrégularités caractéristiques dans la zone du bord et/ou un filigrane dans le papier.
  20. Procédé selon la revendication 17, pour lequel un trou à bord net est produit dans le papier en tant que première caractéristique de sécurité et en tant que deuxième caractéristique de sécurité, un trou avec des irrégularités caractéristiques dans la zone du bord et/ou un filigrane est produit dans le papier, la première et la deuxième caractéristique de sécurité étant en repérage l'une par rapport à l'autre.
EP12772887.1A 2011-10-21 2012-10-15 Toile d'égouttage et procédé de fabrication d'une toile d'égouttage Active EP2769016B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL12772887T PL2769016T3 (pl) 2011-10-21 2012-10-15 Przesiewacz odwadniający i sposób wytwarzania przesiewacza odwadniającego

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE201110116605 DE102011116605A1 (de) 2011-10-21 2011-10-21 Entwässerungssieb
PCT/EP2012/004297 WO2013056804A1 (fr) 2011-10-21 2012-10-15 Toile d'égouttage

Publications (2)

Publication Number Publication Date
EP2769016A1 EP2769016A1 (fr) 2014-08-27
EP2769016B1 true EP2769016B1 (fr) 2016-09-21

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Application Number Title Priority Date Filing Date
EP12772887.1A Active EP2769016B1 (fr) 2011-10-21 2012-10-15 Toile d'égouttage et procédé de fabrication d'une toile d'égouttage

Country Status (6)

Country Link
EP (1) EP2769016B1 (fr)
DE (1) DE102011116605A1 (fr)
ES (1) ES2607492T3 (fr)
HU (1) HUE032371T2 (fr)
PL (1) PL2769016T3 (fr)
WO (1) WO2013056804A1 (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012024774A1 (de) * 2012-12-18 2014-06-18 Giesecke & Devrient Gmbh Entwässerungssieb für die Papierherstellung
DE102012014894A1 (de) * 2012-07-27 2014-01-30 Giesecke & Devrient Gmbh Entwässerungssieb
DE102012018166A1 (de) * 2012-09-13 2014-03-13 Giesecke & Devrient Gmbh Spritzgusswerkzeug zur Erzeugung eines Wasserzeicheneinsatzes in einem Entwässerungssieb
DE102013008082A1 (de) 2013-05-10 2014-11-13 Giesecke & Devrient Gmbh Wert- und Sicherheitsdokument mit einem Wasserzeichen und einem Sicherheitsfaden
DE102013021179A1 (de) * 2013-12-17 2015-06-18 Giesecke & Devrient Gmbh Entwässerungssieb und Verfahren zu seiner Herstellung
DE102014001062A1 (de) * 2014-01-28 2015-07-30 Giesecke & Devrient Gmbh Entwässerungssieb für die Herstellung von Papier mit einem Wasserzeichen
DE102014001064A1 (de) * 2014-01-28 2015-07-30 Giesecke & Devrient Gmbh Entwässerungssieb für die Herstellung von Papier mit papierversteifenden Wasserzeichen
DE102014001048A1 (de) * 2014-01-28 2015-07-30 Giesecke & Devrient Gmbh Entwässerungssieb für die Herstellung von Papier mit einem Wasserzeichen
DE102014119175A1 (de) * 2014-12-19 2016-06-23 Drewsen Spezialpapiere Gmbh & Co Kg Verfahren zur Authentifizierung von Sicherheitselementen und Wertgegenständen, die unter Verwendung eines Sicherheitspapiers hergestellt worden sind, sowie Sicherheitspapier geeignet für das Verfahren
DE102016012464A1 (de) * 2016-10-19 2018-04-19 Giesecke+Devrient Currency Technology Gmbh Anordnung und Verfahren zum Ausstatten eines Entwässerungssiebs mit perforierten Wasserzeicheneinsätzen
DE102019131625A1 (de) * 2019-11-22 2021-05-27 Kautex Textron Gmbh & Co. Kg Randgestaltung einer flächigen Versteifungsstruktur für ein Bauteil

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10163381A1 (de) 2001-12-21 2003-07-03 Giesecke & Devrient Gmbh Sicherheitspapier sowie Verfahren und Vorrichtung zu seiner Herstellung
DE102006058513A1 (de) * 2006-12-12 2008-06-19 Giesecke & Devrient Gmbh Entwässerungssieb und Verfahren zu seiner Herstellung

Also Published As

Publication number Publication date
ES2607492T3 (es) 2017-03-31
HUE032371T2 (en) 2017-09-28
WO2013056804A1 (fr) 2013-04-25
DE102011116605A1 (de) 2013-04-25
EP2769016A1 (fr) 2014-08-27
PL2769016T3 (pl) 2017-04-28

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