EP2929084B1 - Apparatus for manufacturing a multilayered security paper with openings - Google Patents

Apparatus for manufacturing a multilayered security paper with openings Download PDF

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Publication number
EP2929084B1
EP2929084B1 EP13799485.1A EP13799485A EP2929084B1 EP 2929084 B1 EP2929084 B1 EP 2929084B1 EP 13799485 A EP13799485 A EP 13799485A EP 2929084 B1 EP2929084 B1 EP 2929084B1
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EP
European Patent Office
Prior art keywords
paper
paper web
suction
endless belt
screen
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Active
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EP13799485.1A
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German (de)
French (fr)
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EP2929084A1 (en
Inventor
Alexander TANTSCHER
Ulrich SPIEGEL
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Giesecke and Devrient Currency Technology GmbH
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Giesecke and Devrient GmbH
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Priority to PL13799485T priority Critical patent/PL2929084T3/en
Publication of EP2929084A1 publication Critical patent/EP2929084A1/en
Application granted granted Critical
Publication of EP2929084B1 publication Critical patent/EP2929084B1/en
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    • 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
    • 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
    • D21F11/06—Processes for making continuous lengths of paper, or of cardboard, or of wet web for fibre board production, on paper-making machines of the cylinder type
    • D21F11/08—Processes for making continuous lengths of paper, or of cardboard, or of wet web for fibre board production, on paper-making machines of the cylinder type paper or board consisting of two or more layers

Definitions

  • the invention relates to an apparatus for producing a security paper, wherein a first wet end of a paper machine forms a first paper web and possibly with customization features, such as an opening, an endless security element or a watermark, and a second wet end of a paper machine forms a second paper web.
  • a suction device removes paper fibers from the first and / or second paper web in the still wet state at at least one point, preferably in register with the optional individualization features of the first paper web. Subsequently, the second paper web is combined with the first paper web via a removal belt and firmly connected.
  • WO 2006/099971 A2 relates to a paper machine in which a first paper layer with a countercurrent circular screen and a second paper layer with a short former are produced. The two paper layers are merged in the area of a take-off roll and gassed together. Between the paper layers, a security thread supplied on the countercurrent round screen or a security tape is inserted. By means of a first suction device arranged between the short former and the countercurrent circular screen, openings can be introduced into the second paper layer (short-former layer). If desired, by means of an optional second suction device, which is arranged after the merger point of the two paper layers, also openings in the first paper layer (Gegenstromrundsieblage) can be introduced.
  • the suction device is according to a first embodiment of WO 2006/099971 A2 designed as a perforated plate roller having a plate drum in paper web width.
  • the sheet-metal drum is provided with a vacuum suction.
  • the perforated plate roller is rotatably mounted and arranged at a small distance to the pick-up felt, on which the second paper web is guided to the pressure roller.
  • the circumference of the sheet metal drum corresponds to the length of a sheet and is thus in register with the first round screen.
  • the perforated plate roller is driven in register with the first round screen to maintain registration. Paper fibers can be sucked out of the second paper web via the vacuum suction connection and holes, so that new effects can be achieved in the register for the first paper web.
  • the WO 2006/099971 A2 discloses a solution in which the perforated plate roller can only have a small diameter, so that the contact surface with the Kurzformerlage and thus the time for the extraction of paper fibers will also be small.
  • the WO 2006/099971 A2 not to make the suction around, but in trapezoidal or triangular form, with one side of the trapezoid or triangle interacts with the paper web.
  • a plurality of individual Absaugformen is mounted on a flexible base material, which is driven by a chain.
  • a disadvantage of this suction device is that due to the complexity of a large number of individual components must work together.
  • the invention is therefore based on the object to overcome the disadvantages of the prior art and another specific embodiment of a specify generic device for producing a security paper.
  • the suction device comprises an endless belt of a sieve-like fabric or with a closed surface, wherein the endless belt has at least one recess in register with the at least one point at which the paper fibers are to be removed from the paper web in the still moist state.
  • the endless belt is stretched on at least two adjustable in their position guide rollers.
  • a suction roll or suction box is disposed on the side of the endless belt opposite the paper web, the suction roll or suction box creating a vacuum and sucking the paper fibers through the recesses of the belt.
  • the endless belt consists of a sieve-like fabric, which consists of plastic, copper, bronze or other suitable materials.
  • the endless belt is made of an impermeable material, such as rubber, plastic or other suitable materials.
  • At least one spray tube is arranged on the side of the endless belt on which the paper web is located.
  • the spray tube sprays a liquid onto the paper web so that pulp is conveyed through the recesses or holes of the endless belt from the suction apparatus into the suction roll or the suction box.
  • the individual fibers of the sieve-like fabric are connected to each other at the edge of each recess, for example, welded, glued or soldered so as not to impair the mechanical stability of the screen or perforated fabric.
  • E-types are known, for example, for the production of watermarks in round-screen paper machines from the prior art.
  • These E-types and / or injection cups are inserted into the recess, so that a mechanical stabilization of the edge of the recesses in the endless belt or structuring within the recess is possible.
  • the device according to the invention can be used for example for security elements, as they are made WO 2006/018171 A2 are known.
  • WO 2006/018171 A2 relates here to a security element for securing security papers, documents of value and the like with a transparent or translucent carrier.
  • the transparent or translucent support is provided with a mark of authenticity, which conveys a first optical impression in transmitted light and conveys a second optical impression in reflected light in front of a predetermined and easily accessible background, which differs significantly from the first optical impression.
  • the device according to the invention can, for example, also for the targeted extraction of a layer of paper to produce a so-called "pendulum thread” whose surface is completely embedded in sub-areas in the substrate and covered with paper and in other sub-areas on one side not covered with paper and thus is guided to the surface of the substrate.
  • a security paper in the context of this invention is the unprinted paper, which is usually in quasi-endless form and is further processed at a later date.
  • Multi-ply security paper contains at least one ply of paper.
  • the further layers can likewise be made of paper, but also of other materials, for example by plastic films.
  • the security paper is particularly preferably made of cotton fibers, as used for example for banknotes.
  • the substrate may also be made of paper of other natural fibers, also preferably of synthetic fibers, i. a mixture of natural and synthetic fibers or also preferably consist of at least one plastic film.
  • the substrate consists of a combination of at least two superimposed and interconnected different substrates, a so-called hybrid, for example a combination of plastic film-paper-plastic film, i. a paper substrate is covered on either side by a plastic film, or paper plastic film paper, i. a substrate made of a plastic film is covered on each of its two sides by a paper substrate.
  • the font DE 102 43 653 A9 in particular states that the paper layer usually has a weight of 50 g / m 2 to 100 g / m 2 , preferably from 80 g / m 2 to 90 g / m 2 .
  • any suitable weight can be used.
  • Value documents for which such a security paper can be used are, in particular, banknotes, stocks, bonds, certificates, vouchers, checks, high-quality admission tickets, but also other counterfeit securities, such as passports and other identity documents, as well as cards, such as credit or debit cards, for example.
  • a security paper whose card body has at least one layer of security paper, and also product securing elements, such as labels, seals, packaging and the like.
  • security paper or value document includes all the above materials, documents and product securing means.
  • a security element in the context of this invention is preferably an endless security element, which may be formed for example by a security thread or a wide security band.
  • Security threads have a width of 2 mm or less, usually about 1 mm.
  • Wider endless security elements are also referred to as security bands. In particular, they have a width of 4 mm to 20 mm, sometimes even up to 30 mm.
  • the narrower security threads are mostly embedded in the first paper layer, the wide security tapes typically divide the first paper layer into two parts so that they are visible and accessible on both sides of the paper layer. In this case, a characteristic deckle edge is advantageously formed in the edge regions of the security band, which is not reproduce by cutting or punching.
  • the security element may also be fastened with an adhesive in the first paper layer.
  • the endless security element can moreover be equipped with optically variable effects, in particular with a diffraction structure, a hologram, a color shift effect or another interference layer effect. It can also be provided with a printed image, in particular
  • Fig. 1 to 4 show in schematic representation in each case a Doppelrundsieb paper machine, as it is used in the production of security paper.
  • the paper machine contains two rotary screen paper machines 1 and 2, which communicate with each other via a take-off screen 8.
  • the round screen paper machine 1 in this case represents the first wet end of the paper machine and is also referred to as a short shaper, the round screen paper machine 2 represents the second wet end of the paper machine.
  • a suction device can either according to Fig. 1 or Fig. 3 between the two rotary screen paper machines 1 and 2 or according to Fig. 2 or Fig. 4 be arranged after the second round-screen paper machine 2.
  • the suction device in a first embodiment, the suction device according to Fig. 1 and 2 from a suction roll 4.
  • the suction roll is in this case within an endless belt 9 of a sieve-like fabric.
  • the endless belt 9 is mechanically tensioned by at least two positionally adjustable guide rollers 3, so that it runs taut over the guide rollers 3 and the suction roller 4.
  • the apparatus comprises a screen conditioning 6 of a plurality of cleaning spray tubes and a plurality of tube suckers, which clean the endless belt 9 and free of paper fibers or residues.
  • the suction roll consists of a perforated roll body and inside a sealed by sealing strips suction box.
  • the suction box is rotatable, so the optimal suction position can be adjusted.
  • suction rolls are known from the prior art, for example from the company Voit. A vacuum is applied to the suction roll, through which then the removal of the paper fibers through the perforated screen fabric takes place.
  • a pipe suction or suction box 7 and otherwise the same components, as in the first embodiment.
  • the suction box is slotted at the point of contact of the sieve-like fabric or ribbon.
  • the suction box is subjected to a negative pressure, through which then takes place the removal of the paper fibers through the perforated screen fabric in the slot of the sucker.
  • Such suction boxes are known from the prior art, for example from the companies Wefapress, IBS etc.
  • both embodiments is pivoted into the transfer screen already loaded with a take-off sieve 8 (after short shaper or after couch roll or suitable place), so that a converging or converging gap between take-off sieve 8 and endless belt 9 results.
  • a take-off sieve 8 (after short shaper or after couch roll or suitable place)
  • the paper web is dewatered and at the same time reaches the zone of the suction roll 4 and the suction box 7, respectively.
  • a spray tube 5 is positioned, which injects a liquid through the intake screen 8 while the pulp through the holes 10 of the endless belt 9 from the suction device into the suction roll 4 and the suction box 7.
  • Fig. 5 shows an inventive endless belt 9, in the recesses or holes 10 are introduced.
  • the arrangement of these holes 10 in this case corresponds to the holes which are located in the end product, for example a banknote or a sheet of banknotes.
  • the band 9 is designed as an endless sieve-like planar tissue or impermeable structure.
  • strip materials suitable metals or alloys or plastics can be used.
  • the design of the holes 10 must be designed so that the edges of the holes 10 are clearly defined, so that no fibers can be deposited. To improve the edge sharpness, the above-mentioned E-types or injection-molded cups can be used.

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  • Paper (AREA)
  • Credit Cards Or The Like (AREA)

Description

Die Erfindung betrifft eine Vorrichtung zur Herstellung eines Sicherheitspapiers, wobei eine erste Nasspartie einer Papiermaschine eine erste Papierbahn bildet und gegebenenfalls mit Individualisierungsmerkmalen, wie einer Öffnung, einem endlosen Sicherheitselement oder einem Wasserzeichen, versieht, und eine zweite Nasspartie einer Papiermaschine eine zweite Papierbahn bildet. Eine Saugvorrichtung entfernt aus der ersten und/oder zweiten Papierbahn im noch feuchten Zustand an mindestens einer Stelle Papierfasern, vorzugsweise im Register zu den gegebenenfalls vorhandenen Individualisierungsmerkmalen der ersten Papierbahn. Anschließend wird über ein Abnahmeband die zweite Papierbahn mit der ersten Papierbahn zusammengeführt und fest verbunden.The invention relates to an apparatus for producing a security paper, wherein a first wet end of a paper machine forms a first paper web and possibly with customization features, such as an opening, an endless security element or a watermark, and a second wet end of a paper machine forms a second paper web. A suction device removes paper fibers from the first and / or second paper web in the still wet state at at least one point, preferably in register with the optional individualization features of the first paper web. Subsequently, the second paper web is combined with the first paper web via a removal belt and firmly connected.

Eine derartige Vorrichtung ist beispielsweise aus der WO 2006/099971 A2 bekannt. WO 2006/099971 A2 betrifft eine Papiermaschine, in der eine erste Papierlage mit einem Gegenstromrundsieb und eine zweite Papierlage mit einem Kurzformer erzeugt werden. Die beiden Papierlagen werden im Bereich einer Abnahmewalze zusammengeführt und miteinander vergautscht. Zwischen die Papierlagen wird ein am Gegenstromrundsieb zugeführter Sicherheitsfaden oder ein Sicherheitsband eingebracht. Mittels einer zwischen Kurzformer und Gegenstromrundsieb angeordneten ersten Saugeinrichtung können Öffnungen in die zweite Papierlage (Kurzformerlage) eingebracht werden. Falls gewünscht, können mithilfe einer optionalen zweiten Saugeinrichtung, die nach dem Zusammenführungspunkt der beiden Papierlagen angeordnet ist, auch Öffnungen in die erste Papierlage (Gegenstromrundsieblage) eingebracht werden.Such a device is for example from the WO 2006/099971 A2 known. WO 2006/099971 A2 relates to a paper machine in which a first paper layer with a countercurrent circular screen and a second paper layer with a short former are produced. The two paper layers are merged in the area of a take-off roll and gassed together. Between the paper layers, a security thread supplied on the countercurrent round screen or a security tape is inserted. By means of a first suction device arranged between the short former and the countercurrent circular screen, openings can be introduced into the second paper layer (short-former layer). If desired, by means of an optional second suction device, which is arranged after the merger point of the two paper layers, also openings in the first paper layer (Gegenstromrundsieblage) can be introduced.

Die Saugvorrichtung ist gemäß einer ersten Ausführungsform der WO 2006/099971 A2 als Lochblechwalze ausgeführt, die eine Blechtrommel in Papierbahnbreite aufweist. In die Blechtrommel sind Bohrungen in einer gewünschten Anordnung und Größe eingebracht, wobei die Blechtrommel mit einem Vakuumsauganschluss versehen ist. Die Lochblechwalze ist drehbar gelagert und in kleinem Abstand zum Abnahmefilz angeordnet, auf dem die zweite Papierbahn zur Andruckrolle geführt wird. Der Umfang der Blechtrommel entspricht der Länge eines Druckbogens und steht damit im Register zum ersten Rundsieb. Darüber hinaus wird die Lochblechwalze im Register zum ersten Rundsieb angetrieben, um die Registerhaltigkeit aufrechtzuerhalten. Über den Vakuumsauganschluss und Bohrungen können Papierfasern aus der zweiten Papierbahn abgesaugt werden, so dass sich neue Effekte im Register zur ersten Papierbahn verwirklichen lassen.The suction device is according to a first embodiment of WO 2006/099971 A2 designed as a perforated plate roller having a plate drum in paper web width. In the sheet-metal drum holes are introduced in a desired arrangement and size, the sheet-metal drum is provided with a vacuum suction. The perforated plate roller is rotatably mounted and arranged at a small distance to the pick-up felt, on which the second paper web is guided to the pressure roller. The circumference of the sheet metal drum corresponds to the length of a sheet and is thus in register with the first round screen. In addition, the perforated plate roller is driven in register with the first round screen to maintain registration. Paper fibers can be sucked out of the second paper web via the vacuum suction connection and holes, so that new effects can be achieved in the register for the first paper web.

Die WO 2006/099971 A2 führt jedoch weiterhin aus, dass bei beengten räumlichen Verhältnissen die Lochblechwalze nur einen kleinen Durchmesser aufweisen kann, so dass die Berührungsfläche an die Kurzformerlage und damit die Zeit zur Absaugung der Papierfasern ebenfalls klein sein wird. Als Lösung schlägt die WO 2006/099971 A2 vor, die Absaugeinrichtung nicht rund zu gestalten, sondern in Trapez- oder Dreiecksform auszubilden, wobei eine Seite des Trapezes oder Dreiecks mit der Papierbahn zusammenwirkt. Hierbei ist eine Vielzahl von einzelnen Absaugformen auf einem flexiblen Grundmaterial befestigt, das über eine Kette angetrieben wird. Nachteilig an dieser Absaugeinrichtung ist jedoch, dass aufgrund der Komplexität eine Vielzahl einzelner Komponenten zusammenwirken muss.The WO 2006/099971 A2 However, further states that in confined spatial conditions, the perforated plate roller can only have a small diameter, so that the contact surface with the Kurzformerlage and thus the time for the extraction of paper fibers will also be small. As a solution suggests the WO 2006/099971 A2 not to make the suction around, but in trapezoidal or triangular form, with one side of the trapezoid or triangle interacts with the paper web. Here, a plurality of individual Absaugformen is mounted on a flexible base material, which is driven by a chain. A disadvantage of this suction device, however, is that due to the complexity of a large number of individual components must work together.

Der Erfindung liegt deshalb die Aufgabe zugrunde, die Nachteile des Standes der Technik zu beheben und eine weitere konkrete Ausgestaltung einer gattungsgemäßen Vorrichtung zur Herstellung eines Sicherheitspapiers anzugeben.The invention is therefore based on the object to overcome the disadvantages of the prior art and another specific embodiment of a specify generic device for producing a security paper.

Diese Aufgabe wird durch die Merkmale des unabhängigen Anspruches gelöst. Weiterbildungen der Erfindung sind Gegenstand der abhängigen Ansprüche.This object is solved by the features of the independent claim. Further developments of the invention are the subject of the dependent claims.

Erfindungsgemäß weist die Saugvorrichtung ein endloses Band aus einem siebartigen Gewebe oder mit einer geschlossenen Oberfläche auf, wobei das endlose Band mindestens eine Aussparung im Register mit der mindestens einen Stelle aufweist, an der die Papierfasern aus der Papierbahn im noch feuchten Zustand entfernt werden sollen. Das endlose Band ist auf mindestens zwei in ihrer Position verstellbare Leitwalzen gespannt. Eine Saugwalze oder ein Saugkasten ist auf der Seite des endlosen Bandes angeordnet, die der Papierbahn gegenüberliegt, wobei die Saugwalze oder der Saugkasten einen Unterdruck erzeugt und die Papierfasern durch die Aussparungen des Bandes absaugt.According to the invention, the suction device comprises an endless belt of a sieve-like fabric or with a closed surface, wherein the endless belt has at least one recess in register with the at least one point at which the paper fibers are to be removed from the paper web in the still moist state. The endless belt is stretched on at least two adjustable in their position guide rollers. A suction roll or suction box is disposed on the side of the endless belt opposite the paper web, the suction roll or suction box creating a vacuum and sucking the paper fibers through the recesses of the belt.

Erfindungsgemäß werden somit in das endlose Band Aussparungen bzw. Löcher geschnitten, die im Abstand wie die Fenster der späteren fertigen Banknote angeordnet sind.According to the invention thus recesses or holes are cut in the endless belt, which are arranged at a distance as the windows of the later finished banknote.

Bevorzugt besteht das endlose Band aus einem siebartigen Gewebe, das aus Kunststoff, Kupfer, Bronze oder anderen geeigneten Materialien besteht. Alternativ besteht das endlose Band aus einem undurchlässigen Material, beispielsweise aus Gummi, Kunststoff oder anderen geeigneten Materialien.Preferably, the endless belt consists of a sieve-like fabric, which consists of plastic, copper, bronze or other suitable materials. Alternatively, the endless belt is made of an impermeable material, such as rubber, plastic or other suitable materials.

Gemäß einer vorteilhaften Ausgestaltung ist mindestens ein Spritzrohr auf der Seite des endlosen Bandes angeordnet, auf der sich die Papierbahn befindet. Das Spritzrohr sprüht hierbei eine Flüssigkeit auf die Papierbahn, so dass Faserstoff durch die Aussparungen bzw. Löcher des endlosen Bandes von der Absaugapparatur in die Saugwalze bzw. den Saugkasten befördert wird.According to an advantageous embodiment, at least one spray tube is arranged on the side of the endless belt on which the paper web is located. The spray tube sprays a liquid onto the paper web so that pulp is conveyed through the recesses or holes of the endless belt from the suction apparatus into the suction roll or the suction box.

Gemäß einer weiteren vorteilhaften Ausgestaltung sind die einzelnen Fasern des siebartigen Gewebes am Rand jeder einzelnen Aussparung miteinander verbunden, beispielsweise verschweißt, verklebt oder verlötet, um die mechanische Stabilität des Sieb- bzw. Lochgewebes nicht zu beeinträchtigen.According to a further advantageous embodiment, the individual fibers of the sieve-like fabric are connected to each other at the edge of each recess, for example, welded, glued or soldered so as not to impair the mechanical stability of the screen or perforated fabric.

Gemäß einer weiteren vorteilhaften Ausgestaltung ist mindestens eine der Aussparungen mit E-Typen und/ oder Spritzgussnäpfchen ausgestattet. E-Typen sind beispielsweise zur Herstellung von Wasserzeichen bei Rundsiebpapiermaschinen aus dem Stand der Technik bekannt. Spritzgussnäpfchen zum Einsetzen in Aussparungen eines Rundsiebs sind beispielsweise aus DE 10 2012 014 894 A1 bekannt. Diese E-Typen und/ oder Spritzgussnäpfchen werden in die Aussparung eingesetzt, so dass eine mechanische Stabilisierung des Randes der Aussparungen in dem endlosen Band oder auch eine Strukturierung innerhalb der Aussparung möglich ist.According to a further advantageous embodiment, at least one of the recesses E-types and / or Spritzgussnäpfchen equipped. E-types are known, for example, for the production of watermarks in round-screen paper machines from the prior art. Injection molding for insertion in recesses of a round screen, for example, from DE 10 2012 014 894 A1 known. These E-types and / or injection cups are inserted into the recess, so that a mechanical stabilization of the edge of the recesses in the endless belt or structuring within the recess is possible.

Erfindungsgemäß entsteht somit ein Rundsiebschlauch mit ausgeschnittenen Löchern, wobei der Abstand der Aussparungen bzw. Löcher voneinander dem Abstand der auf der fertigen Banknote angeordneten Fenster entspricht. Dieser so behandelte Rundsiebschlauch wird auf eine Vorrichtung gespannt, wobei in den Ausführungsbeispielen bzw. den Figurenbeschreibungen zwei verschiedene Ausführungsformen dieser Vorrichtung exemplarisch dargestellt werden.According to the invention thus creates a round screen tube with cut holes, wherein the distance of the recesses or holes from each other corresponds to the distance of the arranged on the finished banknote window. This Rundsiebschlauch thus treated is stretched onto a device, wherein in the embodiments or the figure descriptions two different embodiments of this device are shown as examples.

Die erfindungsgemäße Vorrichtung kann beispielsweise für Sicherheitselemente verwendet werden, wie sie aus WO 2006/018171 A2 bekannt sind. WO 2006/018171 A2 betrifft hierbei ein Sicherheitselement zur Absicherung von Sicherheitspapieren, Wertdokumenten und dergleichen mit einem transparenten oder transluzenten Träger. Hierbei ist der transparente oder transluzente Träger mit einem Echtheitskennzeichen versehen, das im Durchlicht einen ersten optischen Eindruck vermittelt und im Auflicht vor einem vorbestimmten und leicht zugänglichen Hintergrund einen zweiten optischen Eindruck vermittelt, der sich von dem ersten optischen Eindruck signifikant unterscheidet.The device according to the invention can be used for example for security elements, as they are made WO 2006/018171 A2 are known. WO 2006/018171 A2 relates here to a security element for securing security papers, documents of value and the like with a transparent or translucent carrier. Here, the transparent or translucent support is provided with a mark of authenticity, which conveys a first optical impression in transmitted light and conveys a second optical impression in reflected light in front of a predetermined and easily accessible background, which differs significantly from the first optical impression.

Des Weiteren kann die erfindungsgemäße Vorrichtung beispielsweise auch für die gezielte Absaugung einer Lage Papier zur Erzeugung eines sogenannten "Pendelfadens", dessen Oberfläche in Teilbereichen vollständig in das Substrat eingebettet und mit Papier überdeckt ist und in anderen Teilbereichen an einer Seite nicht mit Papier überdeckt und somit an die Oberfläche des Substrats geführt ist.Furthermore, the device according to the invention can, for example, also for the targeted extraction of a layer of paper to produce a so-called "pendulum thread" whose surface is completely embedded in sub-areas in the substrate and covered with paper and in other sub-areas on one side not covered with paper and thus is guided to the surface of the substrate.

Ein Sicherheitspapier im Sinne dieser Erfindung ist das unbedruckte Papier, das üblicherweise in quasi endloser Form vorliegt und zu einem späteren Zeitpunkt weiterverarbeitet wird.A security paper in the context of this invention is the unprinted paper, which is usually in quasi-endless form and is further processed at a later date.

Mehrlagiges Sicherheitspapier enthält zumindest eine Lage aus Papier. Die weiteren Lagen können ebenfalls aus Papier, aber auch aus anderen Materialien, beispielsweise durch Kunststofffolien, gebildet sein. Das Sicherheitspapier besteht besonders bevorzugt aus Baumwollfasern, wie es beispielsweise für Banknoten verwendet wird.Multi-ply security paper contains at least one ply of paper. The further layers can likewise be made of paper, but also of other materials, for example by plastic films. The security paper is particularly preferably made of cotton fibers, as used for example for banknotes.

Bevorzugt kann das Substrat auch aus Papier aus anderen natürlichen Fasern, ebenso bevorzugt aus Synthesefasern, d.h. einer Mischung aus natürlichen und synthetischen Fasern oder ebenso bevorzugt aus mindestens einer Kunststofffolie bestehen. Weiterhin bevorzugt besteht das Substrat aus einer Kombination aus mindestens zwei übereinander angeordneten und miteinander verbundenen unterschiedlichen Substraten, einem sogenannten Hybrid, beispielsweise einer Kombination Kunststofffolie-Papier-Kunststofffolie, d.h. ein Substrat aus Papier wird auf jeder seiner beiden Seiten durch eine Kunststofffolie bedeckt, oder Papier-Kunststofffolie-Papier, d.h. ein Substrat aus einer Kunststofffolie wird auf jeder seiner beiden Seiten durch ein Substrat aus Papier bedeckt.Preferably, the substrate may also be made of paper of other natural fibers, also preferably of synthetic fibers, i. a mixture of natural and synthetic fibers or also preferably consist of at least one plastic film. Further preferably, the substrate consists of a combination of at least two superimposed and interconnected different substrates, a so-called hybrid, for example a combination of plastic film-paper-plastic film, i. a paper substrate is covered on either side by a plastic film, or paper plastic film paper, i. a substrate made of a plastic film is covered on each of its two sides by a paper substrate.

Angaben zum Gewicht des verwendeten Substrats sind beispielsweise in der Schrift DE 102 43 653 A9 angegeben. Die Schrift DE 102 43 653 A9 führt insbesondere aus, dass die Papierschicht üblicherweise ein Gewicht von 50 g/m2 bis 100 g/m2 aufweist, vorzugsweise von 80 g/m2 bis 90 g/m2. Selbstverständlich kann je nach Anwendung jedes geeignete Gewicht eingesetzt werden.Information on the weight of the substrate used are, for example, in the Scriptures DE 102 43 653 A9 specified. The font DE 102 43 653 A9 in particular states that the paper layer usually has a weight of 50 g / m 2 to 100 g / m 2 , preferably from 80 g / m 2 to 90 g / m 2 . Of course, depending on the application, any suitable weight can be used.

Wertdokumente, für die ein derartiges Sicherheitspapier verwendet werden kann, sind insbesondere Banknoten, Aktien, Anleihen, Urkunden, Gutscheine, Schecks, hochwertige Eintrittskarten, aber auch andere fälschungsgefährdete Papiere, wie Pässe und sonstige Ausweisdokumente, sowie Karten, wie beispielsweise Kredit- oder Debitkarten, deren Kartenkörper mindestens eine Lage eines Sicherheitspapiers aufweist, und auch Produktsicherungselemente, wie Etiketten, Siegel, Verpackungen und dergleichen.Value documents for which such a security paper can be used are, in particular, banknotes, stocks, bonds, certificates, vouchers, checks, high-quality admission tickets, but also other counterfeit securities, such as passports and other identity documents, as well as cards, such as credit or debit cards, for example. whose card body has at least one layer of security paper, and also product securing elements, such as labels, seals, packaging and the like.

Die vereinfachte Benennung Sicherheitspapier oder Wertdokument schließt alle oben genannten Materialien, Dokumente und Produktsicherungsmittel ein.The simplified term security paper or value document includes all the above materials, documents and product securing means.

Ein Sicherheitselement im Sinne dieser Erfindung ist bevorzugt ein endloses Sicherheitselement, das beispielsweise durch einen Sicherheitsfaden oder ein breites Sicherheitsband gebildet sein kann. Sicherheitsfäden weisen dabei eine Breite von 2 mm oder weniger, zumeist von etwa 1 mm auf. Breitere endlose Sicherheitselemente werden auch als Sicherheitsbänder bezeichnet. Sie weisen insbesondere eine Breite von 4 mm bis 20 mm, teilweise sogar bis zu 30 mm auf. Während die schmäleren Sicherheitsfäden meist in die erste Papierlage eingebettet sind, teilen die breiten Sicherheitsbänder typischerweise die erste Papierlage in zwei Teile, so dass sie auf beiden Seiten der Papierlage sichtbar und zugänglich sind. Dabei wird in den Randbereichen des Sicherheitsbands mit Vorteil ein charakteristischer Büttenrand ausgebildet, der durch Schneiden oder Stanzen nicht nachzubilden ist. Das Sicherheitselement kann auch mit einem Kleber in der ersten Papierlage befestigt sein. Das endlose Sicherheitselement kann darüber hinaus mit optisch variablen Effekten, insbesondere mit einer Beugungsstruktur, einem Hologramm, einem Farbkippeffekt oder einem anderen Interferenzschichteffekt, ausgestattet sein. Es kann auch mit einem Druckbild, insbesondere Positiv- oder Negativschriftzeichen, versehen sein.A security element in the context of this invention is preferably an endless security element, which may be formed for example by a security thread or a wide security band. Security threads have a width of 2 mm or less, usually about 1 mm. Wider endless security elements are also referred to as security bands. In particular, they have a width of 4 mm to 20 mm, sometimes even up to 30 mm. While the narrower security threads are mostly embedded in the first paper layer, the wide security tapes typically divide the first paper layer into two parts so that they are visible and accessible on both sides of the paper layer. In this case, a characteristic deckle edge is advantageously formed in the edge regions of the security band, which is not reproduce by cutting or punching. The security element may also be fastened with an adhesive in the first paper layer. The endless security element can moreover be equipped with optically variable effects, in particular with a diffraction structure, a hologram, a color shift effect or another interference layer effect. It can also be provided with a printed image, in particular positive or negative characters.

Anhand der nachfolgenden Ausführungsbeispiele und den ergänzenden Figuren werden die Vorteile der Erfindung erläutert. Die Ausführungsbeispiele stellen bevorzugte Ausführungsformen dar, auf die jedoch die Erfindung in keinerlei Weise beschränkt sein soll. Des Weiteren sind die Darstellungen in den Figuren des besseren Verständnisses wegen stark schematisiert und spiegeln nicht die realen Gegebenheiten wieder. Insbesondere entsprechen die in den Figuren gezeigten Proportionen nicht den in der Realität vorliegenden Verhältnissen und dienen ausschließlich zur Verbesserung der Anschaulichkeit. Des Weiteren sind die in den folgenden Ausführungsbeispielen beschriebenen Ausführungsformen der besseren Verständlichkeit wegen auf die wesentlichen Kerninformationen reduziert. Bei der praktischen Umsetzung können wesentlich komplexere Muster oder Bilder zur Anwendung kommen.Reference to the following embodiments and the additional figures, the advantages of the invention will be explained. The embodiments represent preferred embodiments, to which, however, the invention should not be limited in any way. Furthermore, the representations in the figures of the better understanding are highly schematized and do not reflect the realities. In particular, correspond the proportions shown in the figures do not correspond to the conditions existing in reality and serve only to improve the clarity. Furthermore, the embodiments described in the following exemplary embodiments are reduced to the essential core information for the sake of clarity. In the practical implementation much more complex patterns or images can be used.

Im Einzelnen zeigen schematisch:

Fig. 1
eine Doppelrundsieb-Papiermaschine mit einer erfindungsgemäßem Saugvorrichtung in Form einer Saugwalze zwischen den beiden Rundsieb-Papiermaschinen,
Fig. 2
eine Doppelrundsieb-Papiermaschine mit einer erfindungsgemäßem Saugvorrichtung in Form einer Saugwalze nach der zweiten Rundsieb-Papiermaschine,
Fig. 3
eine Doppelrundsieb-Papiermaschine mit einer erfindungsgemäßem Saugvorrichtung in Form eines Saugkastens zwischen den beiden Rundsieb-Papiermaschinen,
Fig. 4
eine Doppelrundsieb-Papiermaschine mit einer erfindungsgemäßem Saugvorrichtung in Form eines Saugkastens nach der zweiten Rundsieb-Papiermaschine, und
Fig. 5
einen erfindungsgemäßes endloses Band aus einem siebartigen Gewebe.
In detail, show schematically:
Fig. 1
a twin-round paper machine with a suction device according to the invention in the form of a suction roll between the two round-screen paper machines,
Fig. 2
a double-round wire paper machine with a suction device according to the invention in the form of a suction roll after the second rotary screen paper machine,
Fig. 3
a twin-round paper machine with a suction device according to the invention in the form of a suction box between the two round-screen paper machines,
Fig. 4
a Doppelrundsieb-paper machine with a suction device according to the invention in the form of a suction box after the second rotary screen paper machine, and
Fig. 5
an inventive endless band of a sieve-like fabric.

Fig. 1 bis 4 zeigen in schematischer Darstellung jeweils eine Doppelrundsieb-Papiermaschine, wie sie bei der Herstellung von Sicherheitspapier eingesetzt wird. Die Papiermaschine enthält zwei Rundsieb-Papiermaschinen 1 und 2, die über einen Abnahmesieb 8 miteinander in Verbindung stehen. Die Rundsieb-Papiermaschine 1 stellt hierbei die erste Nasspartie der Papiermaschine dar und wird auch als Kurzformer bezeichnet, die Rundsieb-Papiermaschine 2 stellt die zweite Nasspartie der Papiermaschine dar. Fig. 1 to 4 show in schematic representation in each case a Doppelrundsieb paper machine, as it is used in the production of security paper. The paper machine contains two rotary screen paper machines 1 and 2, which communicate with each other via a take-off screen 8. The round screen paper machine 1 in this case represents the first wet end of the paper machine and is also referred to as a short shaper, the round screen paper machine 2 represents the second wet end of the paper machine.

Eine erfindungsgemäße Saugvorrichtung kann entweder gemäß Fig. 1 oder Fig. 3 zwischen den beiden Rundsieb-Papiermaschinen 1 und 2 oder gemäß Fig. 2 oder Fig. 4 nach der zweiten Rundsieb-Papiermaschine 2 angeordnet sein.A suction device according to the invention can either according to Fig. 1 or Fig. 3 between the two rotary screen paper machines 1 and 2 or according to Fig. 2 or Fig. 4 be arranged after the second round-screen paper machine 2.

Bei einem ersten Ausführungsbeispiel besteht die Saugvorrichtung gemäß Fig. 1 und 2 aus einer Saugwalze 4. Die Saugwalze befindet sich hierbei innerhalb eines endlosen Bandes 9 aus einem siebartigen Gewebe. Das endlose Band 9 wird durch mindestens zwei in der Position verstellbare Leitwalzen 3 mechanisch gespannt, so dass er straff über die Leitwalzen 3 und die Saugwalze 4 verläuft. Des Weiteren umfasst die Vorrichtung eine Siebkonditionierung 6 aus mehreren Reinigungsspritzrohren und mehreren Rohrsaugern, die das endlose Band 9 reinigen und von Papierfasern oder Rückständen befreien.In a first embodiment, the suction device according to Fig. 1 and 2 from a suction roll 4. The suction roll is in this case within an endless belt 9 of a sieve-like fabric. The endless belt 9 is mechanically tensioned by at least two positionally adjustable guide rollers 3, so that it runs taut over the guide rollers 3 and the suction roller 4. Furthermore, the apparatus comprises a screen conditioning 6 of a plurality of cleaning spray tubes and a plurality of tube suckers, which clean the endless belt 9 and free of paper fibers or residues.

Die Saugwalze besteht aus einem gelochten Walzenkörper und im Inneren einem durch Dichtleisten abgedichteten Saugkasten. Der Saugkasten ist verdrehbar, somit kann die optimale Saugposition eingestellt werden. Derartige Saugwalzen sind aus dem Stand der Technik bekannt, beispielsweise von der Fa. Voit. An die Saugwalze wird ein Unterdruck angelegt, durch welchen dann die Entfernung der Papierfasern durch das perforierte Siebgewebe erfolgt.The suction roll consists of a perforated roll body and inside a sealed by sealing strips suction box. The suction box is rotatable, so the optimal suction position can be adjusted. Such suction rolls are known from the prior art, for example from the company Voit. A vacuum is applied to the suction roll, through which then the removal of the paper fibers through the perforated screen fabric takes place.

Bei einem zweiten Ausführungsbeispiel befindet sich gemäß Fig. 3 und 4 innerhalb des endlosen Bandes 9 anstatt der Saugwalze 4 ein Rohrsauger bzw. Saugkasten 7 sowie ansonsten dieselben Bauelemente, wie bei dem ersten Ausführungsbeispiel.In a second embodiment is according to Fig. 3 and 4 within the endless belt 9 instead of the suction roller 4, a pipe suction or suction box 7 and otherwise the same components, as in the first embodiment.

Der Saugkasten ist an der Berührungsstelle des siebartigen Gewebes oder Bandes geschlitzt. Der Saugkasten wird mit einem Unterdruck beaufschlagt, durch welchen dann die Entfernung der Papierfasern durch das perforierte Siebgewebes in den Schlitz des Saugers erfolgt. Derartige Saugkästen sind aus dem Stand der Technik bekannt, beispielsweise von den Firmen Wefapress, IBS etc.The suction box is slotted at the point of contact of the sieve-like fabric or ribbon. The suction box is subjected to a negative pressure, through which then takes place the removal of the paper fibers through the perforated screen fabric in the slot of the sucker. Such suction boxes are known from the prior art, for example from the companies Wefapress, IBS etc.

Die Konstruktion beider Ausführungsbeispiele wird in das schon mit einem Abnahmesieb 8 beladene Transfersieb (nach Kurzformer bzw. nach Gautschwalze oder geeignete Stelle) geschwenkt, so dass sich ein konvergierender bzw. zusammenlaufender Spalt zwischen Abnahmesieb 8 und endlosem Band 9 ergibt. In diesem Spalt wird die Papierbahn entwässert und gelangt gleichzeitig in die Zone der Saugwalze 4 bzw. des Saugkastens 7.The construction of both embodiments is pivoted into the transfer screen already loaded with a take-off sieve 8 (after short shaper or after couch roll or suitable place), so that a converging or converging gap between take-off sieve 8 and endless belt 9 results. In this gap, the paper web is dewatered and at the same time reaches the zone of the suction roll 4 and the suction box 7, respectively.

Über der Saugwalze 4 bzw. dem Saugkasten 7 wird ein Spritzrohr 5 positioniert, das eine Flüssigkeit durch das Abnahmesieb 8 spritzt und dabei den Faserstoff durch die Löcher 10 des endlosen Bandes 9 von der Absaugapparatur in die Saugwalze 4 bzw. den Saugkasten 7 befördert.About the suction roller 4 and the suction box 7, a spray tube 5 is positioned, which injects a liquid through the intake screen 8 while the pulp through the holes 10 of the endless belt 9 from the suction device into the suction roll 4 and the suction box 7.

Danach läuft das Abnahmesieb 8 weiter, wobei das mit Löchern versehene Papier über einen Rohrsauger am Abnahmesieb 8 festgehalten wird.Thereafter, the take-off sieve 8 continues to run, the paper provided with holes being held on the take-off sieve 8 by means of a vacuum cleaner.

Fig. 5 zeigt ein erfindungsgemäßes endloses Band 9, in das Aussparungen bzw. Löcher 10 eingebracht sind. Die Anordnung dieser Löcher 10 entspricht hierbei den Löchern, die sich in dem Endprodukt, beispielsweise einer Banknote oder einem Bogen von Banknoten befinden. Fig. 5 shows an inventive endless belt 9, in the recesses or holes 10 are introduced. The arrangement of these holes 10 in this case corresponds to the holes which are located in the end product, for example a banknote or a sheet of banknotes.

Das Band 9 ist als endloses siebartiges flächiges Gewebe bzw. undurchlässiges Gefüge ausgeführt. Als Bandmaterialien können geeignete Metalle bzw. Legierungen oder Kunststoffe eingesetzt werden.The band 9 is designed as an endless sieve-like planar tissue or impermeable structure. As strip materials suitable metals or alloys or plastics can be used.

Die Ausführung der Löcher 10 muss derart gestaltet sein, dass die Kanten der Löcher 10 klar abgegrenzt sind, so dass sich keinerlei Fasern ablagern können. Zur Verbesserung der Kantenschärfe können die oben erwähnten E-Typen bzw. Spritzgussnäpfchen zum Einsatz kommen.The design of the holes 10 must be designed so that the edges of the holes 10 are clearly defined, so that no fibers can be deposited. To improve the edge sharpness, the above-mentioned E-types or injection-molded cups can be used.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

11
Rundsieb-PapiermaschineCylinder mold paper machine
22
Rundsieb-PapiermaschineCylinder mold paper machine
33
Leitwalzenguide rolls
44
Saugwalzesuction roll
55
Spritzrohrspray wand
66
SiebkonditionierungSiebkonditionierung
77
Saugkastensuction box
88th
AbnahmesiebAbnahmesieb
99
endloses Band aus einem siebartigen Gewebeendless ribbon of a sieve-like fabric
1010
Aussparungen bzw. LöcherRecesses or holes

Claims (5)

  1. An apparatus for manufacturing a security paper, wherein
    - a first wet end of a paper machine (1) forms a first paper web and optionally equips the same with individualization features, such as an opening, an endless security element or a watermark,
    - a second wet end of a paper machine (2) forms a second paper web,
    - a suction device removes paper fibers in at least one location from the first and/or second paper web in the still moist state, preferably in register with the optionally present individualization features of the first paper web,
    - the second paper web is joined and firmly connected with the first paper web via a removal belt (8),
    characterized in that
    - the suction device has an endless belt (9) of a screen-like tissue or with an impervious surface,
    - the endless belt (9) has at least one recess (10) in register with the at least one location in which the paper fibers are to be removed from the paper web in the still moist state,
    - the endless belt (9) is stretched onto least two guide rollers (3) that are adjustable in their position,
    - a suction roller (4) or a suction box (7) is arranged on the side of the endless belt (9) that is opposite of the paper web,
    - the suction roller (4) or the suction box (7) generates a negative pressure and withdraws the paper fibers by suction.
  2. The apparatus according to claim 1, characterized in that at least one spray pipe (5) is arranged on the side of the endless belt (9) on which the paper web is disposed, wherein the spray pipe (5) sprays liquid onto the paper web.
  3. The apparatus according to at least one of the preceding claims, characterized in that the endless belt 9) consists of a screen-like tissue which consists of plastic, copper, bronze or other suitable materials, for example, or of a material having an impervious surface, for example of rubber, plastic or other suitable materials.
  4. The apparatus according to at least one of the preceding claims, characterized in that the individual fibers of the screen-like tissue are interconnected at the edge of each individual recess (10), for example welded, adhesively bonded or soldered.
  5. The apparatus according to at least one of the preceding claims, characterized in that at least one of the recesses (10) is equipped with e-types and/or injection-molding cells.
EP13799485.1A 2012-12-07 2013-12-02 Apparatus for manufacturing a multilayered security paper with openings Active EP2929084B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL13799485T PL2929084T3 (en) 2012-12-07 2013-12-02 Apparatus for manufacturing a multilayered security paper with openings

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102012024014.7A DE102012024014A1 (en) 2012-12-07 2012-12-07 Device for producing a multilayer security paper with recesses
PCT/EP2013/003636 WO2014086476A1 (en) 2012-12-07 2013-12-02 Device for producing a multiple-layer security paper with cut-outs

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EP2929084A1 EP2929084A1 (en) 2015-10-14
EP2929084B1 true EP2929084B1 (en) 2017-02-22

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DE (1) DE102012024014A1 (en)
ES (1) ES2621003T3 (en)
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DE102013008082A1 (en) 2013-05-10 2014-11-13 Giesecke & Devrient Gmbh Value and security document with a watermark and security thread
RU2694288C2 (en) * 2014-11-14 2019-07-11 Федригони С.П.А. Method and apparatus for making paper with watermarks
DE102015118227B4 (en) * 2015-10-26 2024-02-08 Bundesdruckerei Gmbh Data page, in particular for a book-like document, and method for producing it
DE102016001106A1 (en) * 2016-02-02 2017-08-03 Giesecke & Devrient Gmbh Method and device for producing a security paper with watermark and integrated window security element
DE102016001107A1 (en) 2016-02-02 2017-08-03 Giesecke & Devrient Gmbh Method and device for producing a security paper with two window security elements
DE102017009357A1 (en) 2017-10-09 2019-04-11 Giesecke+Devrient Currency Technology Gmbh Manufacturing apparatus and manufacturing method for security paper
DE102017009359A1 (en) 2017-10-09 2019-04-11 Giesecke+Devrient Currency Technology Gmbh Manufacturing apparatus and manufacturing method for security paper

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DE10243653A1 (en) 2002-09-19 2004-04-01 Giesecke & Devrient Gmbh security paper
AU2005274464C1 (en) 2004-08-12 2013-07-25 Giesecke+Devrient Currency Technology Gmbh Security element comprising a support
DE102005045566A1 (en) 2005-03-23 2006-09-28 Giesecke & Devrient Gmbh Multi-layer security paper
FR2891761B1 (en) * 2005-10-06 2008-04-04 Arjowiggins Security Soc Par A METHOD FOR MANUFACTURING SHEET MATERIAL COMPRISING AT LEAST ONE WINDOW.
DE102012014894A1 (en) 2012-07-27 2014-01-30 Giesecke & Devrient Gmbh dewatering

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WO2014086476A1 (en) 2014-06-12
PL2929084T3 (en) 2017-08-31
EP2929084A1 (en) 2015-10-14
ES2621003T3 (en) 2017-06-30

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