EP2605917A1 - Method for producing a security paper, and circular screen for this purpose - Google Patents

Method for producing a security paper, and circular screen for this purpose

Info

Publication number
EP2605917A1
EP2605917A1 EP11738621.9A EP11738621A EP2605917A1 EP 2605917 A1 EP2605917 A1 EP 2605917A1 EP 11738621 A EP11738621 A EP 11738621A EP 2605917 A1 EP2605917 A1 EP 2605917A1
Authority
EP
European Patent Office
Prior art keywords
elevation
strip
paper
shaped
security 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.)
Granted
Application number
EP11738621.9A
Other languages
German (de)
French (fr)
Other versions
EP2605917B1 (en
Inventor
Bernhard Wiedner
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
Publication of EP2605917A1 publication Critical patent/EP2605917A1/en
Application granted granted Critical
Publication of EP2605917B1 publication Critical patent/EP2605917B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
    • D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
    • D21H21/40—Agents facilitating proof of genuineness or preventing fraudulent alteration, e.g. for security paper
    • 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
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
    • D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
    • D21H21/40—Agents facilitating proof of genuineness or preventing fraudulent alteration, e.g. for security paper
    • D21H21/42—Ribbons or strips
    • 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
    • B42D25/355—Security threads
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42F—SHEETS TEMPORARILY ATTACHED TOGETHER; FILING APPLIANCES; FILE CARDS; INDEXING
    • B42F7/00—Filing appliances without fastening means
    • B42F7/04—Covers with retention means

Definitions

  • the invention relates to a method for producing a security paper for the production of security documents, such as banknotes, ID cards or the like, with a strip-shaped security element, which is embedded in the security paper and is guided at least one opening in the security paper to one of the surfaces of the security paper , wherein a round screen of a rotary screen paper machine scoops a pulp in the form of a fiber-water suspension from a Bütte.
  • the invention further relates to a round screen of a rotary screen paper machine for producing a security paper for the production of security documents, such as banknotes, identity cards or the like, wherein the security paper has a strip-shaped security element which is embedded in the security paper and at least one opening in the safe - Security paper is guided on one of the surfaces of the security paper, wherein the round screen draws a pulp in the form of a fiber-water suspension from a Bütte.
  • WO 2003/054297 A2 discloses a method for producing a security paper for the production of security documents, such as banknotes, identity cards or the like.
  • the paper screen is provided with at least one elastic or movably mounted closure element.
  • a paper web is formed on the paper screen and has a continuous opening in the region of the closure element, which can be round, oval, rectangular, trapezoidal or star-shaped or can assume any other desired outline contour.
  • the paper web is removed from the paper wire round screen by means of a take-off roll, whereby the closing element is deformed or sunk into the sieve area in such a way that the paper web is unwound. remains very.
  • the resulting continuous opening may be provided at least on a surface of the security paper after its production with a security element projecting beyond the opening, which may in particular also be strip-shaped.
  • the invention is therefore the object of a generic method for producing a security paper in such a way that the disadvantages of the prior art is eliminated and the protection against counterfeiting is further increased.
  • At least one first elevation is applied to the round screen per use, wherein the first elevation is formed by a self-contained frame which surrounds at least one recess and at least one further elevation is applied to the round screen strip-shaped security element causes in the transverse direction, so that the strip-shaped security element is guided on the round screen, that the strip-shaped security element to lie on the first increase and the first increase on the two long sides not or only slightly surmounted, so that can store inside the first increase no fiber-water suspension.
  • Security paper is usually made in wide webs where multiple so-called benefits are juxtaposed.
  • an object or print on a paper or printed sheet is referred to, wherein a plurality of equal benefits of the same motif are arranged in grid-like manner at certain intervals in the transverse and vertical direction on the paper or sheet. For example, nine benefits in the transverse direction and six benefits in the vertical direction and thus a total of 54 uses can be arranged in a matrix on one sheet. If, for example, the round screen of a round-screen paper machine also has 54 uses, at least 54 first elevations are thus provided on the round screen.
  • the side or direction of an elevation or an edge, which is parallel to the direction of rotation of the round screen is defined as a vertical or longitudinal side or a longitudinal or longitudinal direction.
  • the lateral direction or transverse direction is defined as the side or direction which is aligned on the surface of the round screen perpendicular to the vertical or longitudinal side or the vertical or longitudinal direction.
  • the first increase is formed by a self-contained frame.
  • a frame in the context of this invention a circumferential enclosure or boundary without interruptions in the circumferential direction is defined similar to a picture frame.
  • This frame is designed as a "wall-like" increase enclosing a depression, the height of the depression preferably at the level of the unembossed surface of the Rundsiebs lies.
  • the first increase thus resembles a castle wall, but in contrast to this has no openings.
  • wires or molded parts are preferably applied to the paper mesh round screen.
  • These wires or moldings are preferably made of metal or metal-containing materials which are soldered onto the paper wire screen or of plastic which is glued, pressed or melted onto the paper wire screen.
  • the first elevation or the further elevation is shaped like a three-dimensional relief as a high embossing in the paper mesh round screen similar to a multilevel watermark.
  • the height of the first increase i. their increase relative to the surface of the round screen in the radial direction is preferably about 0.3 mm to 0.7 mm, at most 1 mm and particularly preferably 0.5 mm.
  • the inner width of two further elevations which guide the strip-shaped security element at its respective outer edge, ie the spacing of the inner flanks of the two further elevations, is at least the width of the strip-shaped security element.
  • the inner width is 40% and more preferably 20% (each based on the width of the strip-shaped security element) wider than the strip-shaped security element.
  • the height of the further elevations, ie their elevation relative to the surface of the round screen in the radial direction, corresponds at least to the thickness of the strip-shaped security element and preferably to the height of the first elevation.
  • a strip-shaped security element is usually not inserted at the same position in the transverse direction for each benefit from which, for example, a banknote later results.
  • the strip-shaped security element "wobbles", ie changes its position in the transverse direction of usefulness eg sinusoidally around a certain mean, so that when stacking banknotes not all strip-shaped security elements come to lie one above the other and the stack has no excessive thickening at this point
  • This principle can also be applied to the present invention, wherein the first and corresponding two further increases benefit from changing their position by sinusoidally changing their position about an average, ie, from the mean to a side in the transverse direction increases and then decreases again, and then increases in the transverse direction towards the other side and then decreases again to the mean value, in which case the strip-shaped security element must likewise be fed "wobbling" to the corresponding first and corresponding two further elevations n, by the supply of the strip-shaped security element in the transverse direction is moved back and forth in such a way that it always comes to rest on the respective first or between the corresponding two further elevations. This means that the supply of the strip-shaped security element takes place in the transverse
  • the first elevation may have any outline contour.
  • the outline contour can be made triangular or polygonal, round, oval, star-shaped, wavy or irregular.
  • the Outline contour can also take the form of an alphanumeric character or a graphic.
  • the strip-shaped security element is, for example, a security thread, as is known from EP 0492407 A1, or a wide security strip, as described in EP 0625431 A1.
  • the subjects of these two disclosures are fully incorporated into this invention in this regard.
  • the strip-shaped security element projects beyond the first increase on the two longitudinal sides either not or only by about 0.5 mm, and preferably by about 1 mm.
  • the width of the strip-shaped security element is thus at least as wide as the maximum width, i. the maximum extension in the transverse direction of the first increase.
  • a generic security document is, for example, a banknote, a security, a credit or identity card, a passport, a document or the like, a label, a packaging or another item for product assurance.
  • FIG. 3 is an enlarged detail of FIG. 2,
  • FIG. 4 shows the detail from FIG. 3 with a strip-shaped security element resting thereon, FIG.
  • FIG. 5 shows a security document with the strip-shaped security element according to the invention and in this case in FIG. 5a in plan view and in FIG. 5b in an oblique view, FIG.
  • FIG. 6 shows a section A-A of Fig. 5a
  • Fig. 7 shows another embodiment of the invention.
  • Fig. 1 shows a rotary screen paper machine according to the invention, which consists of a round screen 1, which dips into a water-fiber suspension 2 ', which in turn is in a B ⁇ 1 ⁇ 4ll 2.
  • the fibers of the water-fiber suspension 2 ' are preferably made of cotton fibers or fibers of annual plants, as used for the production of banknote paper become.
  • other fibers are possible, for example synthetic fibers or cellulose fibers, or else a mixture of different fibers, for example a mixture of cotton and cellulose fibers.
  • the water-fiber suspension may contain additives, such as mottled fibers or dyes.
  • first elevations 3 and further elevations 7 On the circular sieve 1 are first elevations 3 and further elevations 7.
  • a strip-shaped security element 5 is fed as endless element from a coil on which the strip-shaped security element 5 is wound over a pulley 1 to the round screen.
  • the strip-shaped security element 5 rests on the first elevations 3 and is guided by the further elevations 7, so that it is held and guided in the further rotation of the round screen 1 on the first elevations 3.
  • the fibers and, if present, the additives are deposited on the round screen 1 on top of the strip-shaped security element 5, i. between the round screen 1 and the strip-shaped security element 5, as well as on the underside of the strip-shaped security element 5 and thus form the paper web, in which the strip-shaped security element 5 is embedded.
  • the strip-shaped security element 5 protrudes slightly beyond the edge of the first elevation 3, i. by about 0.5 mm to 1 mm, so that this edge of the water-fiber suspension 2 'is backwashed and accumulate fibers there.
  • the strip-shaped security element 5 is thus embedded at its edges in the resulting paper. If, however, the width of the strip-shaped security element 5 is selected such that the strip-shaped security element 5 is substantially wider than the first elevation 3, the edge region of the strip-shaped security element 5 projecting laterally beyond the first elevation 3 is also sucked by the vacuum onto the round screen 1, then that no or fewer fibers attach and there is no reliable embedding of the strip-shaped security element 5 in the resulting paper.
  • the security paper 6 produced on a non-woven and a deflection roller of the round screen. 1 removed and fed to further processing, in particular a further drying.
  • FIG. 2 shows a round screen 1 according to the invention with a plurality of benefits 8.
  • Each individual utility 8 has a first elevation 3.
  • the first elevation 3 is configured as a wave-shaped frame which surrounds or framed a depression 4.
  • Two further elevations 7 at the upper and at the lower edge of the utility 8 have a spacing from each other which corresponds to the width of the strip-shaped security element 5, so that the strip-shaped security element 5, as shown in FIG. 4, is guided by the further elevations 7 becomes.
  • the strip-shaped security element 5 lies exactly above the first elevation 3 and projects slightly beyond it on both longitudinal sides.
  • FIG. 5 shows a security document in the form of a banknote 9 produced by means of the production method according to the invention.
  • This banknote 9 was cut out of a paper sheet produced with the round screen 1 according to FIGS. 1 to 4.
  • the strip-shaped security element 5 is embedded.
  • An opening 10, which was produced by the first elevation 3, contains no paper, as shown in FIG. 5b, so that in this opening 10 the strip-shaped security element 5 is guided to the surface of the banknote 9 and becomes visible in reflected light.
  • viewing in incident light is illumination of an object from one side and observation of the object from the same side. A reflection in incident light is thus present, for example, when the front of the object is illuminated and also viewed.
  • FIG. 6 shows a section AA according to FIG. 5 a through the banknote 9.
  • a section of the round screen 1 is shown schematically with the first elevation 3 surrounding the depression 4.
  • the strip-shaped security element 5 is embedded in the paper of the banknote 9, wherein the strip-shaped security element 5 passes through the opening 10 to the surface of the banknote 9.
  • the area of the opening 10 corresponds to that area which is formed by the outer contour of the first elevation 3.
  • the recess 4 is not executed over the entire surface within the first elevation 3, but is partially filled or divided by webs 11. These webs 11 support the strip-shaped security element 5 in the area in which it is sucked by the negative pressure in the round screen 1. In this way, it is advantageously prevented that the strip-shaped security element 5 deforms, since otherwise it would be sucked into the depression 4 by the negative pressure and would rest against the round screen 1 within the first elevation 3.
  • the first elevation 3 encloses not only one depression, but several. In the embodiment with wavy outline contour, these are 12 depressions, in the embodiment with elliptical outline contour 4 depressions.
  • FIG. 7 furthermore shows that the outline contour of the first elevation 3 can not only be wave-shaped, but also, for example, elliptical.
  • outline shapes are possible, for example triangular, quadrangular, star-shaped or irregular outline shapes.

Landscapes

  • Paper (AREA)
  • Credit Cards Or The Like (AREA)
  • Machines For Manufacturing Corrugated Board In Mechanical Paper-Making Processes (AREA)

Abstract

The invention relates to a method for producing a security paper for producing security documents, such as bank notes, identification cards, or the like, comprising a strip-shaped security element that is embedded into the security paper and guided onto one of the surfaces of the security paper on at least one opening in the security paper. A circular screen of a cylinder paper machine creates a paper pulp in the form of a fiber/water suspension from a vat. The invention further relates to a circular screen of a cylinder paper machine for producing a corresponding security paper. According to the invention, at least one first elevation is applied on the circular screen per project, said first elevation being formed by a closed frame that surrounds at least one recess. At least one further elevation is applied on the circular screen, the strip-shaped security element being guided in a lateral direction as a result of said further elevation so that the strip-shaped security element is guided on the circular screen in such a manner that the strip-shaped security element comes to rest on the first elevation. The first elevation does not protrude or only slightly protrudes on both longitudinal sides so that no fiber/water suspension can be stored in the interior of the first elevation.

Description

Verfahren zur Herstellung eines Sicherheitspapiers sowie Rundsieb dafür  Method for producing a security paper and round screen for it
Die Erfindung betrifft ein Verfahren zur Herstellung eines Sicherheitspapiers für die Herstellung von Sicherheitsdokumenten, wie Banknoten, Ausweis- karten oder dergleichen, mit einem streifenförmigen Sicherheitselement, das in das Sicherheitspapier eingebettet wird und an mindestens einer Öffnung im Sicherheitspapier an eine der Oberflächen des Sicherheitspapiers geführt wird, wobei ein Rundsieb einer Rundsieb-Papiermaschine eine Papiermasse in Form einer Faser- Wasser-Suspension aus einer Bütte schöpft. Die Erfin- dung betrifft ferner ein Rundsieb einer Rundsieb-Papiermaschine zur Herstellung eines Sicherheitspapiers für die Herstellung von Sicherheitsdokumenten, wie Banknoten, Ausweiskarten oder dergleichen, wobei das Sicherheitspapier ein streifenförmiges Sicherheitselement aufweist, das in das Sicherheitspapier eingebettet ist und an mindestens einer Öffnung im Sicher- heitspapier an eine der Oberflächen des Sicherheitspapiers geführt ist, wobei das Rundsieb eine Papiermasse in Form einer Faser- Wasser-Suspension aus einer Bütte schöpft. The invention relates to a method for producing a security paper for the production of security documents, such as banknotes, ID cards or the like, with a strip-shaped security element, which is embedded in the security paper and is guided at least one opening in the security paper to one of the surfaces of the security paper , wherein a round screen of a rotary screen paper machine scoops a pulp in the form of a fiber-water suspension from a Bütte. The invention further relates to a round screen of a rotary screen paper machine for producing a security paper for the production of security documents, such as banknotes, identity cards or the like, wherein the security paper has a strip-shaped security element which is embedded in the security paper and at least one opening in the safe - Security paper is guided on one of the surfaces of the security paper, wherein the round screen draws a pulp in the form of a fiber-water suspension from a Bütte.
Hierzu ist beispielsweise aus WO 2003/054297 A2 ein Verfahren zur Herstel- lung eines Sicherheitspapiers für die Herstellung von Sicherheitsdokumenten, wie Banknoten, Ausweiskarten oder dergleichen, bekannt. Das Papier- siebRundsieb wird hierbei mit wenigstens einem elastischen oder beweglich gelagerten Verschlusselement versehen. Auf dem PapiersiebRundsieb wird eine Papierbahn gebildet, die im Bereich des Verschlusselements eine durch- gehende Öffnung aufweist, die rund, oval, rechteckig, trapezförmig oder sternförmig ausgebildet sein kann oder jede andere beliebige Umrisskontur annehmen kann. Abschließend wird die Papierbahn über eine Abnahmerolle von dem PapiersiebRundsieb abgenommen, wobei das Verschlusselement so verformt oder in den Siebbereich versenkt wird, dass die Papierbahn unver- sehrt bleibt. Die entstandene durchgehende Öffnung kann zumindest auf einer Oberfläche des Sicherheitspapiers nach dessen Herstellung mit einem die Öffnung überragenden Sicherheitselement versehen sein, das insbesondere auch streifenförmig ausgebildet sein kann. WO 2003/054297 A2, for example, discloses a method for producing a security paper for the production of security documents, such as banknotes, identity cards or the like. The paper screen is provided with at least one elastic or movably mounted closure element. A paper web is formed on the paper screen and has a continuous opening in the region of the closure element, which can be round, oval, rectangular, trapezoidal or star-shaped or can assume any other desired outline contour. Finally, the paper web is removed from the paper wire round screen by means of a take-off roll, whereby the closing element is deformed or sunk into the sieve area in such a way that the paper web is unwound. remains very. The resulting continuous opening may be provided at least on a surface of the security paper after its production with a security element projecting beyond the opening, which may in particular also be strip-shaped.
5  5
Bei diesem Herstellungsverfahren sind jedoch zwei getrennte Arbeitsschritte erforderlich, da zunächst das Sicherheitspapier mit der Öffnung erzeugt und in einem nachgelagerten Arbeitsschritt die Öffnung mit einem Sicherheitselement verschlossen werden muss. Des Weiteren ist es bei diesem Herstellt) lungsverfahren nicht möglich, einen sogenannten Fensterfaden zu erzeugen, d.h. einen Sicherheitsfaden, der an mindestens einer Öffnung im Sicherheitspapier an eine der Oberflächen des Sicherheitspapiers geführt wird.  In this manufacturing process, however, two separate steps are required, since initially the security paper produced with the opening and the opening must be closed with a security element in a subsequent step. Furthermore, in this manufacturing method, it is not possible to produce a so-called window thread, i. a security thread which is guided on at least one opening in the security paper to one of the surfaces of the security paper.
Der Erfindung liegt deshalb die Aufgabe zugrunde, ein gattungsgemäßes 15 Verfahren zur Herstellung eines Sicherheitspapiers derart weiterzubilden, dass die Nachteile des Standes der Technik behoben und der Schutz gegenüber Fälschungen weiter erhöht wird. The invention is therefore the object of a generic method for producing a security paper in such a way that the disadvantages of the prior art is eliminated and the protection against counterfeiting is further increased.
Diese Aufgabe wird durch die Merkmale der unabhängigen Ansprüche ge- 20 löst. Weiterbildungen der Erfindung sind Gegenstand der abhängigen Ansprüche. This object is solved by the features of the independent claims. Further developments of the invention are the subject of the dependent claims.
Erfindungsgemäß wird auf dem Rundsieb pro Nutzen mindestens eine erste Erhöhung aufgebracht, wobei die erste Erhöhung durch einen in sich ge- 25 schlossenen Rahmen gebildet wird, der mindestens eine Vertiefung umschließt, und auf dem Rundsieb mindestens eine weitere Erhöhung aufgebracht wird, die eine Führung des streifenförmigen Sicherheitselements in Querrichtung bewirkt, so dass das streifenförmige Sicherheitselement derart auf dem Rundsieb geführt wird, dass das streifenförmige Sicherheitselement auf der ersten Erhöhung zu liegen kommt und die erste Erhöhung an deren beiden Längsseiten nicht oder nur geringfügig überragt, so dass sich im Inneren der ersten Erhöhung keine Faser- Wasser-Suspension einlagern kann. Sicherheitspapier wird üblicherweise in breiten Bahnen hergestellt, bei denen mehrere sogenannte Nutzen nebeneinander angeordnet sind. Als Nutzen wird hierbei ein Objekt oder Druck auf einem Papier- oder Druckbogen bezeichnet, wobei eine Vielzahl gleicher Nutzen desselben Motivs in bestimmten Abständen in Quer- und Hochrichtung auf dem Papier- oder Druckbogen rasterartig angeordnet sind. Beispielsweise können auf einem Bogen neun Nutzen in Querrichtung und sechs Nutzen in Hochrichtung und damit insgesamt 54 Nutzen matrixartig angeordnet sein. Weist das Rundsieb einer Rundsieb-Papiermaschine beispielsweise ebenfalls 54 Nutzen auf, sind auf dem Rundsieb somit mindestens 54 erste Erhöhungen angebracht. According to the invention, at least one first elevation is applied to the round screen per use, wherein the first elevation is formed by a self-contained frame which surrounds at least one recess and at least one further elevation is applied to the round screen strip-shaped security element causes in the transverse direction, so that the strip-shaped security element is guided on the round screen, that the strip-shaped security element to lie on the first increase and the first increase on the two long sides not or only slightly surmounted, so that can store inside the first increase no fiber-water suspension. Security paper is usually made in wide webs where multiple so-called benefits are juxtaposed. As an advantage, an object or print on a paper or printed sheet is referred to, wherein a plurality of equal benefits of the same motif are arranged in grid-like manner at certain intervals in the transverse and vertical direction on the paper or sheet. For example, nine benefits in the transverse direction and six benefits in the vertical direction and thus a total of 54 uses can be arranged in a matrix on one sheet. If, for example, the round screen of a round-screen paper machine also has 54 uses, at least 54 first elevations are thus provided on the round screen.
Als Hoch- oder Längsseite bzw. Hoch- oder Längsrichtung wird im Sinne dieser Erfindung die Seite bzw. Richtung einer Erhöhung oder einer Kante definiert, die parallel zur Umdrehungsrichtung des Rundsiebs liegt. Als Querseite bzw. Querrichtung wird im Sinne dieser Erfindung die Seite bzw. Richtung definiert, die auf der Oberfläche des Rundsiebs senkrecht zur Hoch- oder Längsseite bzw. Hoch- oder Längsrichtung ausgerichtet ist. In the context of this invention, the side or direction of an elevation or an edge, which is parallel to the direction of rotation of the round screen, is defined as a vertical or longitudinal side or a longitudinal or longitudinal direction. For the purposes of this invention, the lateral direction or transverse direction is defined as the side or direction which is aligned on the surface of the round screen perpendicular to the vertical or longitudinal side or the vertical or longitudinal direction.
Die erste Erhöhung wird durch einen in sich geschlossenen Rahmen gebildet. Als Rahmen wird im Sinne dieser Erfindung eine umlaufende Einfassung oder Begrenzung ohne Unterbrechungen in Umlauf richtung definiert ähnlich einem Bilderrahmen. Dieser Rahmen ist als„wallartige" Erhöhung ausgeführt, die eine Vertiefung umschließt, wobei die Höhe der Vertiefung bevorzugt auf der Höhe der unverprägten Oberfläche des Rundsiebs liegt. Die erste Erhöhung ähnelt somit auch einer Burgmauer, weist jedoch im Gegensatz zu dieser keine Durchbrechungen auf. The first increase is formed by a self-contained frame. As a frame in the context of this invention, a circumferential enclosure or boundary without interruptions in the circumferential direction is defined similar to a picture frame. This frame is designed as a "wall-like" increase enclosing a depression, the height of the depression preferably at the level of the unembossed surface of the Rundsiebs lies. The first increase thus resembles a castle wall, but in contrast to this has no openings.
Für die Herstellung der ersten oder der weiteren Erhöhung werden bevor- zugt Drähte oder Formteile (sogenannte Elektrotypen oder E-Typen) auf das PapiersiebRundsieb aufgebracht. Diese Drähte oder Formteile bestehen bevorzugt aus Metall oder metallhaltigen Stoffen, die auf das PapiersiebRundsieb aufgelötet werden, oder aus Kunststoff, der auf das PapiersiebRundsieb geklebt, gepresst oder aufgeschmolzen wird. Alternativ wird die erste Erhö- hung oder die weitere Erhöhung ähnlich einem vielstufigen Wasserzeichen als dreidimensionales Relief als Hochprägung in das PapiersiebRundsieb geprägt. For the production of the first or the further increase, wires or molded parts (so-called electrotypes or E types) are preferably applied to the paper mesh round screen. These wires or moldings are preferably made of metal or metal-containing materials which are soldered onto the paper wire screen or of plastic which is glued, pressed or melted onto the paper wire screen. Alternatively, the first elevation or the further elevation is shaped like a three-dimensional relief as a high embossing in the paper mesh round screen similar to a multilevel watermark.
Die Höhe der ersten Erhöhung, d.h. deren Erhöhung gegenüber der Oberflä- che des Rundsiebs in radialer Richtung, ist bevorzugt etwa 0,3 mm bis 0,7 mm, maximal 1 mm und besonders bevorzugt 0,5 mm. The height of the first increase, i. their increase relative to the surface of the round screen in the radial direction is preferably about 0.3 mm to 0.7 mm, at most 1 mm and particularly preferably 0.5 mm.
Die innere Breite von zwei weiteren Erhöhungen, die das streifenförmige Sicherheitselement an seiner jeweiligen Außenkante führen, d.h. der Ab- stand der Innenflanken der beiden weiteren Erhöhungen, beträgt mindestens die Breite des streifenförmigen Sicherheitselements. Bevorzugt ist die innere Breite um 40 % und besonders bevorzugt um 20 % (jeweils bezogen auf die Breite des streifenförmigen Sicherheitselements) breiter als das streifenförmige Sicherheitselement. Die Höhe der weiteren Erhöhungen, d.h. deren Er- höhung gegenüber der Oberfläche des Rundsiebs in radialer Richtung, entspricht mindestens der Dicke des streifenförmigen Sicherheitselements und bevorzugt der Höhe der ersten Erhöhung. Bei der Herstellung des Sicherheitspapiers wird ein streifenförmiges Sicherheitselement üblicherweise nicht bei jedem Nutzen, aus dem sich beispielsweise später eine Banknote ergibt, an derselben Position in Querrichtung eingebracht. Vielmehr„wobbelt" das streifenförmige Sicherheitselement, d.h. verändert seine Position in Querrichtung von Nutzen zu Nutzen z.B. sinusartig um einen bestimmten Mittelwert herum, so dass beim Stapeln von Banknoten nicht alle streifenförmigen Sicherheitselemente übereinander zu liegen kommen und der Stapel an dieser Stelle keine übermäßige Verdickung aufweist. Dieses Prinzip kann auch auf die vorliegende Erfindung angewendet werden, wobei die ersten und entsprechenden beiden weiteren Erhöhungen von Nutzen zu Nutzen ihre Position verändern, indem sich ihre Position um einen Mittelwert herum sinusartig verändert, d.h. ausgehend von dem Mittelwert zu einer Seite in Querrichtung hin zunimmt und dann wieder abnimmt, um dann zur anderen Seite in Querrichtung hin zuzuneh- men und dann bis zum Mittelwert wieder abzunehmen. Das streifenförmige Sicherheitselement muss in diesem Fall ebenso„wobbelnd" den entsprechenden ersten und entsprechenden beiden weiteren Erhöhungen zugeführt werden, indem die Zuführung des streifenförmigen Sicherheitselements in Querrichtung derartig hin und her bewegt wird, dass es stets auf der jeweili- gen ersten bzw. zwischen den entsprechenden beiden weiteren Erhöhungen zu liegen kommt. Dies bedeutet, dass die Zuführung des streifenförmigen Sicherheitselements ihre Position in Querrichtung synchron„wobbelnd" mit der„wobbelnden" Position der ersten und den entsprechenden beiden weiteren Erhöhungen auf dem Rundsieb erfolgt. The inner width of two further elevations which guide the strip-shaped security element at its respective outer edge, ie the spacing of the inner flanks of the two further elevations, is at least the width of the strip-shaped security element. Preferably, the inner width is 40% and more preferably 20% (each based on the width of the strip-shaped security element) wider than the strip-shaped security element. The height of the further elevations, ie their elevation relative to the surface of the round screen in the radial direction, corresponds at least to the thickness of the strip-shaped security element and preferably to the height of the first elevation. In the manufacture of the security paper, a strip-shaped security element is usually not inserted at the same position in the transverse direction for each benefit from which, for example, a banknote later results. Rather, the strip-shaped security element "wobbles", ie changes its position in the transverse direction of usefulness eg sinusoidally around a certain mean, so that when stacking banknotes not all strip-shaped security elements come to lie one above the other and the stack has no excessive thickening at this point This principle can also be applied to the present invention, wherein the first and corresponding two further increases benefit from changing their position by sinusoidally changing their position about an average, ie, from the mean to a side in the transverse direction increases and then decreases again, and then increases in the transverse direction towards the other side and then decreases again to the mean value, in which case the strip-shaped security element must likewise be fed "wobbling" to the corresponding first and corresponding two further elevations n, by the supply of the strip-shaped security element in the transverse direction is moved back and forth in such a way that it always comes to rest on the respective first or between the corresponding two further elevations. This means that the supply of the strip-shaped security element takes place in the transverse direction synchronously "wobbling" with the "wobbling" position of the first and the corresponding two further elevations on the round screen.
Besonderes bevorzugt kann die erste Erhöhung eine beliebige Umrisskontur aufweisen. Insbesondere kann die Umrisskontur drei- oder mehreckig, rund, oval, sternförmig, wellenförmig oder unregelmäßig ausgeführt sein. Die Umrisskontur kann auch die Form eines alphanumerischen Zeichens oder einer Graphik annehmen. Particularly preferably, the first elevation may have any outline contour. In particular, the outline contour can be made triangular or polygonal, round, oval, star-shaped, wavy or irregular. The Outline contour can also take the form of an alphanumeric character or a graphic.
Das streifenförmige Sicherheitselement ist beispielsweise ein Sicherheitsfa- den, wie er aus EP 0492407 AI bekannt ist, oder ein breites Sicherheitsband, wie es in EP 0625431 AI beschrieben wird. Die Gegenstände dieser beiden Offenbarungen werden diesbezüglich vollumfänglich in diese Erfindung aufgenommen. Das streifenförmige Sicherheitselement überragt die erste Erhöhung an deren beiden Längsseiten entweder nicht oder nur jeweils um etwa 0,5 mm und bevorzugt um jeweils etwa 1 mm. Die Breite des streifenförmigen Sicherheitselements ist somit mindestens so breit wie die maximale Breite, d.h. die maximale Ausdehnung in Querrichtung der ersten Erhöhung. The strip-shaped security element is, for example, a security thread, as is known from EP 0492407 A1, or a wide security strip, as described in EP 0625431 A1. The subjects of these two disclosures are fully incorporated into this invention in this regard. The strip-shaped security element projects beyond the first increase on the two longitudinal sides either not or only by about 0.5 mm, and preferably by about 1 mm. The width of the strip-shaped security element is thus at least as wide as the maximum width, i. the maximum extension in the transverse direction of the first increase.
Ein gattungsgemäßes Sicherheitsdokument ist beispielsweise eine Banknote, ein Wertpapier, eine Kredit- oder Ausweiskarte, ein Pass, eine Urkunde oder dergleichen, ein Label, eine Verpackung oder ein anderes Element für die Produktsicherung. A generic security document is, for example, a banknote, a security, a credit or identity card, a passport, a document or the like, a label, a packaging or another item for product assurance.
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 Darstel- lungen in den Figuren des besseren Verständnisses wegen stark schematisiert und spiegeln nicht die realen Gegebenheiten wider. 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 Ausführungsbei- spielen 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 better understanding are highly schematic and do not reflect the realities. In particular, the proportions shown in the figures do not correspond to the conditions present in reality and serve exclusively to improve the clarity. Furthermore, in the following exemplary embodiments For reasons of clarity, the described embodiments are reduced to the essential core information. In the practical implementation much more complex patterns or images can be used.
Im Einzelnen zeigen schematisch: In detail, show schematically:
Fig. 1 eine erfindungsgemäße Rundsieb-Papiermaschine, 1 shows a round screen paper machine according to the invention,
Fig. 2 ein erfindungsgemäßes Rundsieb, 2 shows a round screen according to the invention,
Fig. 3 einen vergrößerten Ausschnitt aus Fig. 2, 3 is an enlarged detail of FIG. 2,
Fig. 4 den Ausschnitt aus Fig. 3 mit aufliegendem streifenförmigem Sicherheitselement, 4 shows the detail from FIG. 3 with a strip-shaped security element resting thereon, FIG.
Fig. 5 ein Sicherheitsdokument mit dem erfindungsgemäßen streifenförmigen Sicherheitselement und hierbei in Fig. 5a in Aufsicht und in Fig. 5b in Schrägansicht, 5 shows a security document with the strip-shaped security element according to the invention and in this case in FIG. 5a in plan view and in FIG. 5b in an oblique view, FIG.
Fig. 6 einen Schnitt A-A aus Fig. 5a, 6 shows a section A-A of Fig. 5a,
Fig. 7 eine weitere Ausführungsform der Erfindung. Fig. 7 shows another embodiment of the invention.
Die Fig. 1 zeigt eine erfindungsgemäße Rundsieb-Papiermaschine, die aus einem Rundsieb 1 besteht, das in eine Wasser-Faser-Suspension 2' eintaucht, die sich wiederum in einer Bütte 2 befindet. Die Fasern der Wasser-Faser- Suspension 2' bestehen bevorzugt aus Baumwollfasern oder Fasern von Ein- jahrespflanzen, wie sie für die Herstellung von Banknotenpapier verwendet werden. Es ist jedoch auch andere Fasern möglich, beispielsweise Synthesefasern oder Zellulosefasern, oder auch eine Mischung unterschiedlicher Fasern, beispielsweise eine Mischung von Baumwoll- und Zellulosefasern. Des Weiteren kann die Wasser-Faser-Suspension Zusatzstoffe aufweisen, wie beispielsweise Melierfasern oder Farbstoffe. Fig. 1 shows a rotary screen paper machine according to the invention, which consists of a round screen 1, which dips into a water-fiber suspension 2 ', which in turn is in a Büll 2. The fibers of the water-fiber suspension 2 'are preferably made of cotton fibers or fibers of annual plants, as used for the production of banknote paper become. However, other fibers are possible, for example synthetic fibers or cellulose fibers, or else a mixture of different fibers, for example a mixture of cotton and cellulose fibers. Furthermore, the water-fiber suspension may contain additives, such as mottled fibers or dyes.
Auf dem Rundsieb 1 befinden sich erste Erhöhungen 3 und weitere Erhöhungen 7. Ein streifenförmiges Sicherheitselement 5 wird als Endloselement ausgehend von einer Spule, auf die das streifenförmige Sicherheitselement 5 aufgewickelt ist, über eine Umlenkrolle dem Rundsieb 1 zugeführt. Das streifenförmige Sicherheitselement 5 liegt dabei auf den ersten Erhöhungen 3 auf und wird von den weiteren Erhöhungen 7 geführt, so dass es bei der weiteren Drehung des Rundsiebs 1 auf den ersten Erhöhungen 3 gehalten und geführt wird. On the circular sieve 1 are first elevations 3 and further elevations 7. A strip-shaped security element 5 is fed as endless element from a coil on which the strip-shaped security element 5 is wound over a pulley 1 to the round screen. The strip-shaped security element 5 rests on the first elevations 3 and is guided by the further elevations 7, so that it is held and guided in the further rotation of the round screen 1 on the first elevations 3.
Während des Eintauchens in die Wasser-Faser-Suspension 2' lagern sich die Fasern und, sofern vorhanden, die Zusatzstoffe auf dem Rundsieb 1 auf der Oberseite des streifenförmigen Sicherheitselements 5, d.h. zwischen dem Rundsieb 1 und dem streifenförmigen Sicherheitselement 5, sowie auf der Unterseite des streifenförmigen Sicherheitselements 5 ab und bilden so die Papierbahn, in die das streifenförmige Sicherheitselement 5 eingebettet ist. During immersion in the water-fiber suspension 2 ', the fibers and, if present, the additives are deposited on the round screen 1 on top of the strip-shaped security element 5, i. between the round screen 1 and the strip-shaped security element 5, as well as on the underside of the strip-shaped security element 5 and thus form the paper web, in which the strip-shaped security element 5 is embedded.
Im Inneren des Rundsiebs 1 herrscht gegenüber dem Luftdruck der Umgebung ein geringfügiger Unterdruck, so dass das Wasser der Wasser-Faser- Suspension 2' in das Innere des Rundsiebs 1 abgesaugt wird. Die Fasern der Wasser-Faser-Suspension 2' können jedoch durch das mehrlagige und engmaschige Gewebe bzw. Gitter des Rundsiebs 1 nicht hindurchtreten und lagern sich an der Oberfläche des Rundsiebs an. An den Stellen, an denen das streifenförmige Sicherheitselement 5 auf den ersten Erhöhungen 3 aufliegt, wird das streifenförmige Sicherheitselement 5 von dem Unterdruck im Inneren des Rundsiebs 1 an die ersten Erhöhungen 3 angesaugt. Durch die rah- menförmige Ausgestaltung der ersten Erhöhungen 3 kann keine Wasser- Faser-Suspension 2' in den Innenraum, der durch die von der ersten Erhö- hung 3 umgebene Vertiefung 4 und das streifenförmige Sicherheitselement 5 gebildet wird, eindringen, so dass sich in diesem Bereich keine Wasser- Faser-Suspension und damit keine Fasern oder Zusatzstoffe anlagern können. Dies bedeutet, dass das streifenförmige Sicherheitselement 5 in diesem Bereich frei von Papierfasern bleibt, wohingegen sich in den umliegenden Bereichen Papierfasern anlagern können. Im Bereich der ersten Erhöhungen 3 bildet sich somit eine Öffnung im Papier, so dass hier das streifenförmige Sicherheitselement 5 an die Oberfläche des Papiers tritt. In the interior of the round screen 1 there is a slight negative pressure relative to the ambient air pressure, so that the water of the water-fiber suspension 2 'is sucked into the interior of the round screen 1. However, the fibers of the water-fiber suspension 2 'can not pass through the multi-layered and closely meshed fabric or grid of the round screen 1 and accumulate on the surface of the round screen. At the points where the strip-shaped security element 5 rests on the first elevations 3, the strip-shaped security element 5 is sucked by the negative pressure in the interior of the round screen 1 to the first elevations 3. Due to the frame-shaped configuration of the first elevations 3, no water-fiber suspension 2 'can penetrate into the interior, which is formed by the recess 4 surrounded by the first elevation 3 and the strip-shaped security element 5, so that In this area no water-fiber suspension and thus no fibers or additives can attach. This means that the strip-shaped security element 5 remains free of paper fibers in this area, whereas paper fibers can accumulate in the surrounding areas. In the area of the first elevations 3, an opening in the paper thus forms, so that here the strip-shaped security element 5 comes to the surface of the paper.
Das streifenförmige Sicherheitselement 5 ragt über den Rand der ersten Er- höhung 3 geringfügig, d.h. um etwa 0,5 mm bis 1 mm hinaus, so dass dieser Rand von der Wasser-Faser-Suspension 2' hinterspült wird und sich dort Fasern anlagern. Das streifenförmige Sicherheitselement 5 wird somit an seinen Rändern in das entstehende Papier eingebettet. Wird hingegen die Breite des streifenförmigen Sicherheitselements 5 derart gewählt, dass das streifen- förmige Sicherheitselement 5 wesentlich breiter ist als die erste Erhöhung 3, wird auch der seitlich die erste Erhöhung 3 überragende Randbereich des streifenförmigen Sicherheitselements 5 vom Unterdruck an das Rundsieb 1 angesaugt, so dass sich keine oder weniger Fasern anlagern und sich keine zuverlässige Einbettung des streifenförmigen Sicherheitselements 5 in das entstehende Papier ergibt. The strip-shaped security element 5 protrudes slightly beyond the edge of the first elevation 3, i. by about 0.5 mm to 1 mm, so that this edge of the water-fiber suspension 2 'is backwashed and accumulate fibers there. The strip-shaped security element 5 is thus embedded at its edges in the resulting paper. If, however, the width of the strip-shaped security element 5 is selected such that the strip-shaped security element 5 is substantially wider than the first elevation 3, the edge region of the strip-shaped security element 5 projecting laterally beyond the first elevation 3 is also sucked by the vacuum onto the round screen 1, then that no or fewer fibers attach and there is no reliable embedding of the strip-shaped security element 5 in the resulting paper.
Nach etwa einer dreiviertel Umdrehung des Rundsiebs 1 wird das erzeugte Sicherheitspapier 6 über ein Vlies und eine Umlenkrolle von dem Rundsieb 1 abgenommen und der weiteren Verarbeitung, insbesondere einer weiteren Trocknung zugeführt. After about a three-quarter turn of the round screen 1, the security paper 6 produced on a non-woven and a deflection roller of the round screen. 1 removed and fed to further processing, in particular a further drying.
Fig. 2 zeigt ein erfindungsgemäßes Rundsieb 1 mit einer Vielzahl von Nut- zen 8. Jeder einzelne Nutzen 8 weist eine erste Erhöhung 3 auf. In Längsrichtung zwischen den jeweiligen Nutzen befinden sich zwei weitere Erhöhungen 7, die das streifenförmige Sicherheitselement 5 in Position relativ zu der ersten Erhöhung 3 halten. Fig. 3 zeigt einen vergrößerten Ausschnitt aus Fig. 2. Die erste Erhöhung 3 ist als wellenförmiger Rahmen ausgestaltet, der eine Vertiefung 4 umrandet bzw. umrahmt. Zwei weitere Erhöhungen 7 am oberen und am unteren Rand des Nutzens 8 weisen einen Abstand voneinander auf, der der Breite des streifenförmigen Sicherheitselements 5 entspricht, so dass das streifen- förmige Sicherheitselement 5, wie in Fig. 4 dargestellt, durch die weiteren Erhöhungen 7 geführt wird. Das streifenförmige Sicherheitselement 5 liegt dabei exakt über der ersten Erhöhung 3 und überragt es an beiden Längsseiten geringfügig. Fig. 5 zeigt ein mit dem erfindungsgemäßen Herstellungsverfahren erzeugtes Sicherheitsdokument in Form einer Banknote 9. Diese Banknote 9 wurde aus einem Papierbogen, der mit dem Rundsieb 1 gemäß den Figuren 1 bis 4 hergestellt wurde, ausgeschnitten. In die Banknote 9 ist das streifenförmige Sicherheitselement 5 eingebettet. Eine Öffnung 10, die durch die erste Erhö- hung 3 erzeugt wurde, enthält wie in Fig. 5b dargestellt kein Papier, so dass in dieser Öffnung 10 das streifenförmige Sicherheitselement 5 an die Oberfläche der Banknote 9 geführt und in Auflicht sichtbar wird. Eine Betrachtung in Auflicht ist im Sinne dieser Erfindung eine Beleuchtung eines Objektes von einer Seite und eine Betrachtung des Objektes von derselben Seite. Eine Betrachtung in Auflicht liegt somit beispielsweise dann vor, wenn die Vorderseite des Objektes beleuchtet und auch betrachtet wird. Im Gegensatz dazu ist eine Betrachtung in Durchlicht im Sinne dieser Erfindung eine Beleuchtung eines Objektes von einer Seite und eine Betrachtung des Objektes von einer anderen Seite, insbesondere der gegenüberliegenden Seite. Eine Betrachtung in Durchlicht liegt somit beispielsweise dann vor, wenn die Rückseite des Objektes beleuchtet und die Vorderseite des Objektes betrachtet wird. Das Licht scheint somit durch das Objekt hindurch. Fig. 6 zeigt einen Schnitt A-A gemäß Fig. 5a durch die Banknote 9. Zusätzlich ist zum besseren Verständnis schematisch ein Ausschnitt des Rundsiebs 1 eingezeichnet mit der ersten Erhöhung 3, die die Vertiefung 4 umgibt. Das streifenförmige Sicherheitselement 5 ist in das Papier der Banknote 9 eingebettet, wobei das streifenförmige Sicherheitselement 5 über die Öffnung 10 an die Oberfläche der Banknote 9 tritt. Die Fläche der Öffnung 10 entspricht derjenigen Fläche, die durch die Außenkontur der ersten Erhöhung 3 gebildet wird. FIG. 2 shows a round screen 1 according to the invention with a plurality of benefits 8. Each individual utility 8 has a first elevation 3. In the longitudinal direction between the respective benefits are two further elevations 7, which hold the strip-shaped security element 5 in position relative to the first elevation 3. FIG. 3 shows an enlarged detail from FIG. 2. The first elevation 3 is configured as a wave-shaped frame which surrounds or framed a depression 4. Two further elevations 7 at the upper and at the lower edge of the utility 8 have a spacing from each other which corresponds to the width of the strip-shaped security element 5, so that the strip-shaped security element 5, as shown in FIG. 4, is guided by the further elevations 7 becomes. The strip-shaped security element 5 lies exactly above the first elevation 3 and projects slightly beyond it on both longitudinal sides. FIG. 5 shows a security document in the form of a banknote 9 produced by means of the production method according to the invention. This banknote 9 was cut out of a paper sheet produced with the round screen 1 according to FIGS. 1 to 4. In the banknote 9, the strip-shaped security element 5 is embedded. An opening 10, which was produced by the first elevation 3, contains no paper, as shown in FIG. 5b, so that in this opening 10 the strip-shaped security element 5 is guided to the surface of the banknote 9 and becomes visible in reflected light. For the purposes of this invention, viewing in incident light is illumination of an object from one side and observation of the object from the same side. A reflection in incident light is thus present, for example, when the front of the object is illuminated and also viewed. In contrast, viewing in transmitted light in the sense of this invention is an illumination of an object from one side and a viewing of the object from another side, in particular the opposite side. A reflection in transmitted light is thus present, for example, when the back of the object is illuminated and the front of the object is viewed. The light thus shines through the object. FIG. 6 shows a section AA according to FIG. 5 a through the banknote 9. In addition, for a better understanding, a section of the round screen 1 is shown schematically with the first elevation 3 surrounding the depression 4. The strip-shaped security element 5 is embedded in the paper of the banknote 9, wherein the strip-shaped security element 5 passes through the opening 10 to the surface of the banknote 9. The area of the opening 10 corresponds to that area which is formed by the outer contour of the first elevation 3.
In einem Ausführungsbeispiel gemäß Fig. 7 ist die Vertiefung 4 innerhalb der ersten Erhöhung 3 nicht vollflächig ausgeführt, sondern ist durch Stege 11 teilweise aufgefüllt bzw. unterteilt. Diese Stege 11 stützen das streifenförmige Sicherheitselement 5 in dem Bereich ab, in dem es vom Unterdruck im Rundsieb 1 angesaugt wird. Hierdurch wird vorteilhaft verhindert, dass sich das streifenförmige Sicherheitselement 5 verformt, da es ansonsten durch den Unterdruck in die Vertiefung 4 hineingesaugt und innerhalb der ersten Erhöhung 3 am Rundsieb 1 anliegen würde. In an exemplary embodiment according to FIG. 7, the recess 4 is not executed over the entire surface within the first elevation 3, but is partially filled or divided by webs 11. These webs 11 support the strip-shaped security element 5 in the area in which it is sucked by the negative pressure in the round screen 1. In this way, it is advantageously prevented that the strip-shaped security element 5 deforms, since otherwise it would be sucked into the depression 4 by the negative pressure and would rest against the round screen 1 within the first elevation 3.
Die erste Erhöhung 3 umschließt in dem Ausführungsbeispiel gemäß Fig. 7 nicht nur eine Vertiefung, sondern mehrere. Bei dem Ausführungsbeispiel mit wellenförmiger Umrisskontur sind dies 12 Vertiefungen, bei dem Ausführungsbeispiel mit elliptischer Umrisskontur 4 Vertiefungen. In the exemplary embodiment according to FIG. 7, the first elevation 3 encloses not only one depression, but several. In the embodiment with wavy outline contour, these are 12 depressions, in the embodiment with elliptical outline contour 4 depressions.
Fig. 7 zeigt weiterhin, dass die Umrisskontur der ersten Erhöhung 3 nicht nur wellenförmig, sondern beispielsweise auch elliptisch ausgeführt sein kann. Selbstverständlich sind auch weitere Umrissformen möglich, beispielsweise dreieckige, viereckige, sternförmige oder unregelmäßige Umrissformen. FIG. 7 furthermore shows that the outline contour of the first elevation 3 can not only be wave-shaped, but also, for example, elliptical. Of course, further outline shapes are possible, for example triangular, quadrangular, star-shaped or irregular outline shapes.
Bezugszeichenliste LIST OF REFERENCE NUMBERS
Rundsieb Round Screen
Bütte  vat
Wasser-Faser-Suspension  Water-fiber suspension
erste Erhöhung first increase
Vertiefung  deepening
streifenförmiges Sicherheitselementstrip-shaped security element
Sicherheitspapier security paper
weitere Erhöhung further increase
Nutzen  Use
Banknote  bill
Öffnung  opening
Steg  web

Claims

P a t e n t a n s p r ü c h e P a n t a n s p r e c h e
Verfahren zur Herstellung eines Sicherheitspapiers (6) für die Herstellung von Sicherheitsdokumenten, wie Banknoten, Ausweiskarten oder dergleichen, mit einem streifenförmigen Sicherheitselement (5), das in das Sicherheitspapier (6) eingebettet wird und an mindestens einer Öffnung (10) im Sicherheitspapier (6) an eine der Oberflächen des Sicherheitspapiers (6) geführt wird, wobei ein Rundsieb (1) einer Rundsieb- Papiermaschine eine Papiermasse in Form einer Faser- Wasser-Suspension (2') aus einer Bütte (2) schöpft, dadurch gekennzeichnet, dass Method for producing a security paper (6) for the production of security documents, such as bank notes, identification cards or the like, comprising a strip-shaped security element (5) which is embedded in the security paper (6) and attached to at least one opening (10) in the security paper (6 ) is guided on one of the surfaces of the security paper (6), wherein a circular screen (1) of a rotary screen paper machine scoops a pulp in the form of a fiber-water suspension (2 ') from a chest (2), characterized in that
- auf dem Rundsieb (1) pro Nutzen mindestens eine erste Erhöhung (3) aufgebracht wird, - at least a first increase (3) is applied to the round screen (1) per use,
- die erste Erhöhung (3) durch einen in sich geschlossenen Rahmen gebildet wird, der mindestens eine Vertiefung (4) umschließt, the first elevation (3) is formed by a self-contained frame enclosing at least one depression (4),
- auf dem Rundsieb (1) mindestens eine weitere Erhöhung (7) aufgebracht wird, die eine Führung des streifenförmigen Sicherheitselements (5) in Querrichtung bewirkt, so dass das streifenförmige Sicherheitselement (5) derart auf dem Rundsieb (1) geführt wird, dass das streifenförmige Sicherheitselement (5) auf der ersten Erhöhung (3) zu liegen kommt und die erste Erhöhung (3) an deren beiden Längsseiten nicht oder nur geringfügig überragt, so dass sich im Inneren der ersten Erhöhung (3) keine Faser- Wasser-Suspension (2') einlagern kann. - On the round screen (1) at least one further increase (7) is applied, which causes a guide of the strip-shaped security element (5) in the transverse direction, so that the strip-shaped security element (5) is guided on the round screen (1) that the strip-shaped security element (5) comes to lie on the first elevation (3) and the first elevation (3) on its two longitudinal sides not or only slightly surmounted, so that in the interior of the first elevation (3) no fiber-water suspension ( 2 ') can store.
Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass die erste Erhöhung (3) durch eine Elektrotype, die auf das Gitter des Rundsiebs (1) aufgebracht wird, oder durch eine Hochprägung des Gitters des Rundsiebs (1) gebildet wird. Method according to claim 1, characterized in that the first elevation (3) is formed by an electrotype acting on the grid of the round screen (1) is applied, or by an embossing of the grid of the round screen (1) is formed.
Verfahren nach einem der vorigen Ansprüche, dadurch gekennzeichnet, dass die erste Erhöhung (3) eine beliebige Umrisskontur aufweist, insbesondere eine drei- oder mehreckige, runde, ovale, sternförmige, wellenförmige oder unregelmäßige Umrisskontur. Method according to one of the preceding claims, characterized in that the first elevation (3) has any outline contour, in particular a triangular or polygonal, round, oval, star-shaped, wavy or irregular outline contour.
Verfahren nach einem der vorigen Ansprüche, dadurch gekennzeichnet, dass die mindestens eine weitere Erhöhung (7) durch eine Hochprägung oder eine Elektrotype gebildet wird. Method according to one of the preceding claims, characterized in that the at least one further elevation (7) is formed by an embossing or an electrotype.
Verfahren nach einem der vorigen Ansprüche, dadurch gekennzeichnet, dass das streifenförmige Sicherheitselement (5) die erste Erhöhung (3) an deren beiden Längsseiten jeweils um 0 mm, bevorzugt jeweils um etwa 0,5 mm und besonders bevorzugt jeweils um etwa 1 mm überragt. Method according to one of the preceding claims, characterized in that the strip-shaped security element (5) projects beyond the first elevation (3) on both its longitudinal sides by 0 mm, preferably each by approximately 0.5 mm and particularly preferably each by approximately 1 mm.
Rundsieb (1) einer Rundsieb-Papiermaschine zur Herstellung eines Sicherheitspapiers (6) für die Herstellung von Sicherheitsdokumenten, wie Banknoten, Ausweiskarten oder dergleichen, wobei das Sicherheitspapier (6) ein streifenförmiges Sicherheitselement (5) aufweist, das in das Sicherheitspapier (6) eingebettet ist und an mindestens einer Öffnung (10) im Sicherheitspapier (6) an eine der Oberflächen des Sicherheitspapiers (6) geführt ist, wobei das Rundsieb (1) eine Papiermasse in Form einer Faser- Wasser-Suspension (2') aus einer Bütte (2) schöpft, dadurch gekennzeichnet, dass Round sieve (1) of a round-screen paper machine for producing a security paper (6) for the production of security documents, such as banknotes, identity cards or the like, wherein the security paper (6) has a strip-shaped security element (5) embedded in the security paper (6) and is guided on at least one opening (10) in the security paper (6) on one of the surfaces of the security paper (6), wherein the round screen (1) a pulp in the form of a fiber-water suspension (2 ') from a Bütte ( 2) scoops, characterized in that
- auf dem Rundsieb (1) pro Nutzen mindestens eine erste Erhöhung (3) aufgebracht ist, - die erste Erhöhung (3) in Form eines in sich geschlossenen Rahmen ausgeführt ist, der mindestens eine Vertiefung (4) umschließt, - at least one first elevation (3) has been applied to the round screen (1) per use, - The first elevation (3) is designed in the form of a self-contained frame, which encloses at least one recess (4),
- auf dem Rundsieb (1) mindestens eine weitere Erhöhung (7) aufge- bracht ist, die eine Führung des streifenförmigen Sicherheitselements- on the round screen (1) at least one further increase (7) is applied, which is a guide of the strip-shaped security element
(5) in Querrichtung bewirkt, so dass das streifenförmige Sicherheitselement (5) derart auf dem Rundsieb (1) geführt ist, dass das streifenförmige Sicherheitselement (5) auf der ersten Erhöhung (3) zu liegen kommt und die erste Erhöhung (3) an deren beiden Längsseiten nicht oder nur geringfügig überragt, so dass sich im Inneren der ersten Erhöhung (3) keine Faser- Wasser-Suspension (2') einlagern kann. (5) in the transverse direction, so that the strip-shaped security element (5) is guided on the round screen (1) such that the strip-shaped security element (5) comes to rest on the first elevation (3) and the first elevation (3) whose two longitudinal sides not or only slightly surmounted, so that in the interior of the first increase (3) no fiber-water suspension (2 ') can store.
7. Rundsieb (1) nach Anspruch 6, dadurch gekennzeichnet, dass die erste Erhöhung (3) eine Elektrotype ist, die auf das Gitter des Rundsiebs (1) aufgebracht ist, oder eine Hochprägung des Gitters des Rundsiebs (1). 7. Round sieve (1) according to claim 6, characterized in that the first elevation (3) is an electrotype, which is applied to the grid of the round screen (1), or an embossing of the grid of the round screen (1).
8. Rundsieb (1) nach Anspruch 6 oder 7, dadurch gekennzeichnet, dass die erste Erhöhung (3) eine beliebige Umrisskontur aufweist, insbesondere eine drei- oder mehreckige, runde, ovale, sternförmige, wellenförmige oder unregelmäßige Umrisskontur. 8. Round sieve (1) according to claim 6 or 7, characterized in that the first elevation (3) has any outline contour, in particular a triangular or polygonal, round, oval, star-shaped, wavy or irregular outline contour.
9. Rundsieb (1) nach einem der Ansprüche 6 bis 8, dadurch gekennzeichnet, dass die mindestens eine weitere Erhöhung (7) eine Hochprägung oder eine Elektrotype ist. 9. round screen (1) according to any one of claims 6 to 8, characterized in that the at least one further increase (7) is an embossing or an electrotype.
10. Rundsieb (1) nach einem der Ansprüche 6 bis 9, dadurch gekennzeichnet, dass das streifenförmige Sicherheitselement (5) die erste Erhöhung (3) an deren beiden Längsseiten jeweils um 0 mm, bevorzugt je- weils um etwa 0,5 mm und besonders bevorzugt jeweils um etwa 1 mm überragt. 10. round screen (1) according to one of claims 6 to 9, characterized in that the strip-shaped security element (5) the first increase (3) at its two longitudinal sides in each case by 0 mm, preferably each because it projects beyond about 0.5 mm and particularly preferably in each case by about 1 mm.
EP11738621.9A 2010-08-18 2011-07-15 Method for producing a security paper, and circular screen for this purpose Active EP2605917B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE201010034693 DE102010034693A1 (en) 2010-08-18 2010-08-18 Method for producing a security paper and round screen for it
PCT/EP2011/003548 WO2012022402A1 (en) 2010-08-18 2011-07-15 Method for producing a security paper, and circular screen for this purpose

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EP2605917A1 true EP2605917A1 (en) 2013-06-26
EP2605917B1 EP2605917B1 (en) 2015-01-07

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CN (1) CN103079835B (en)
DE (1) DE102010034693A1 (en)
ES (1) ES2530491T3 (en)
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WO (1) WO2012022402A1 (en)

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CN103079835B (en) 2015-06-24
RU2538512C2 (en) 2015-01-10
ES2530491T3 (en) 2015-03-03
WO2012022402A1 (en) 2012-02-23
DE102010034693A1 (en) 2012-02-23
CN103079835A (en) 2013-05-01
RU2013111607A (en) 2014-09-27
EP2605917B1 (en) 2015-01-07

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