EP0659936A2 - Security paper with thread- or tape-like security element - Google Patents

Security paper with thread- or tape-like security element Download PDF

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Publication number
EP0659936A2
EP0659936A2 EP94120464A EP94120464A EP0659936A2 EP 0659936 A2 EP0659936 A2 EP 0659936A2 EP 94120464 A EP94120464 A EP 94120464A EP 94120464 A EP94120464 A EP 94120464A EP 0659936 A2 EP0659936 A2 EP 0659936A2
Authority
EP
European Patent Office
Prior art keywords
opaque coating
security
paper according
security paper
thread
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
EP94120464A
Other languages
German (de)
French (fr)
Other versions
EP0659936B1 (en
EP0659936A3 (en
Inventor
Christian Schmitz
Armin Dr. Weingartner
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
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Publication date
Application filed by Giesecke and Devrient GmbH filed Critical Giesecke and Devrient GmbH
Publication of EP0659936A2 publication Critical patent/EP0659936A2/en
Publication of EP0659936A3 publication Critical patent/EP0659936A3/en
Application granted granted Critical
Publication of EP0659936B1 publication Critical patent/EP0659936B1/en
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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
    • D21H21/44—Latent security elements, i.e. detectable or becoming apparent only by use of special verification or tampering devices or methods
    • 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
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07D—HANDLING OF COINS OR VALUABLE PAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING, DISPENSING, CHANGING OR DEPOSITING
    • G07D7/00—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency
    • G07D7/06—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency using wave or particle radiation
    • G07D7/12—Visible light, infrared or ultraviolet radiation
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S428/00—Stock material or miscellaneous articles
    • Y10S428/916—Fraud or tamper detecting

Definitions

  • the invention relates to a security paper with a security element in the form of a thread or tape, which consists of a translucent plastic film with at least partially opaque coating and which has information in the form of visually and / or machine-readable characters or patterns.
  • security threads Papers of this type are referred to below as security papers.
  • the security threads used for this purpose consist of a wide variety of materials in the form of threads or tapes with a width of 0.4 to 10 mm. They mainly consist of plastic films, which are metallically coated, printed, colored or z. B. are provided with pigment-shaped substances. In addition, it is also known to give the security threads magnetic, fluorescent, X-ray absorbing and other properties by selecting appropriate substances.
  • Metallic coated threads have recently been increasingly used for security papers. These threads, which are partially or completely arranged inside the paper, are almost invisible in the striking light. Because the light rays penetrating through the upper layer of paper are completely reflected on the metallic surface and diffusely scattered in the paper. In transmitted light, however, such threads appear as black stripes that differ from theirs Stand out clearly from the surroundings. Threads of this type cannot be imitated by printing on the paper. To increase the security against counterfeiting, it has also already been proposed to provide such aluminum-coated security threads with a micro-script (DE-OS 14 46 851). In practice, however, this has proven to be of little use, since this writing on the otherwise opaque security thread is not visible in transmitted light and is very difficult to recognize in incident light. Even if such security threads, as described in EP-PS 0 059 056, are introduced into the paper as so-called window threads, the microprint remains difficult to find in the printed paper.
  • a translucent plastic film which can be colored, is provided with a full-surface opaque, in particular metallic, coating, in which recesses are produced in the form of characters or patterns.
  • the thread can be seen in transmitted light as a dark stripe in the document, while the Stand out characters and patterns from their direct surroundings, the opaque thread coating, and additionally from the wider surroundings, the document material, as bright, possibly colored areas. The thread is therefore very easy to find in the document and the characters can be read at any time without tools if the size is appropriate.
  • the invention is based on the object of producing a security paper with a thread-like or tape-like security element which offers a high level of protection against counterfeiting, but at the same time ensures that the security element and the characters are easily recognizable without technical aids.
  • the security paper according to the invention has a security thread consisting of a translucent plastic substrate with a grid-like metal coating.
  • This can be a periodic stripe pattern, for example, which can have any orientation with respect to the running direction of the thread.
  • this security thread carries, in particular, visually readable information that spans several opaque, metallic areas and metal-free areas Intermediate areas extends. This means that the information, which can include any characters or patterns, is available as translucent, metal-free areas.
  • This grid-like arrangement of the metal areas has the advantage that the frequent metal / non-metal changes make it possible to imitate the visual impression, if at all, only by means of complex techniques.
  • the characters and / or patterns can also be composed of alternately arranged opaque and translucent areas.
  • the translucent information components are in the area of the opaque background coating and the opaque information components are in the coating-free translucent intermediate areas, so that the information on the background pattern stands out in contrast.
  • This type of representation also results in frequent metal / non-metal changes, the precise registration of which can only be mimicked using complex techniques.
  • the security element according to the invention like all metallized security threads, offers good copy protection through the known incident light / transmitted light effect. Larger coherent metallic surfaces appear in the reflected light as dark spots in the paper, so that attempts have already been made to imitate this visual impression in the known security elements. Small metallic areas, such as the metallic characters described in EP-OS 0 279 880, are less noticeable in incident light, but are also difficult to find in transmitted light, so that it is difficult to check this authenticity feature.
  • the security element according to the invention is due 50% of the background pattern consisting of opaque areas can be easily found and checked in the paper. Moreover, due to the grid-like arrangement of the opaque areas and the associated frequent changes between opaque and non-opaque areas, imitations of the visual impression in incident light can be prevented or at least made very difficult.
  • Fig. 1 shows a security document 1 according to the invention, here a banknote into which a thread-like or ribbon-shaped security element 2 is woven in the form of a window thread, so that the thread comes directly to the paper surface at certain intervals, the so-called windows 3.
  • the thread can also be completely embedded in the paper or be designed as a full-surface element.
  • the width of the thread can be, for example, between 0.4 and 10 mm.
  • FIGS. 2-8 show a section of a security element according to the invention in supervision.
  • the embodiment shown in FIG. 2 consists of a transparent or at least translucent plastic substrate 3, which is provided with a strip-like metallization 4.
  • Visually and / or machine-readable information 5 extends over a number of such strips and stands out from this background due to the correspondingly shaped recesses in the opaque strips.
  • the metallic strips 4 can, for example, have a width of 200 ⁇ m and an orientation inclined by 45 ° with respect to the running direction of the thread, while the text thickness of the contrasting information can be 600 ⁇ m.
  • the example shown in FIG. 2 has a coating-free edge area 6, which serves as a cutting tolerance during the production of the threads in the form of a web and, in particular when it is introduced as a window thread, ensures a uniform appearance of the thread in the window area. This edge area 6 can be dispensed with in the production of completely exposed or embedded threads.
  • the orientation of the metallic strips can be selected as desired and, in a further preferred embodiment, is 0 ° with respect to the running direction of the thread, as shown in FIG. 3. Of course, the same applies to the selected stripe widths and font thickness.
  • any other grid-like metal arrangements can also be used, such as, for. B. a grid of points or a grid of arbitrarily shaped geometric figures. It is only necessary to ensure that the extent of the metal areas and the font size of the information are coordinated with one another in such a way that the information contrasts with the background and is therefore recognizable.
  • the information can also be composed of opaque and translucent areas which stand out from their respective surroundings. Such variants are shown in FIGS. 4-8.
  • Fig. 4 shows a background pattern similar to Fig. 2, i.e. H. opaque metal strips 400 ⁇ m wide, inclined at 45 ° to the running direction of the thread, which have correspondingly shaped recesses 9 in the area of the characters.
  • the information portions 7 located in the coating-free intermediate areas are given an opaque coating, which is also strip-shaped and has the same angular orientation.
  • 5 shows the analogous case for a stripe-shaped background pattern running parallel to the running direction of the thread.
  • FIG. 6 Another alternative is shown in FIG. 6.
  • the plastic substrate 3 is subdivided into two subregions arranged parallel to the thread running direction.
  • the upper area comprises the metallization 4, in which the translucent portions 9 of the information are provided.
  • the opaque information portions 7 are located in the lower, coating-free area 8 of the plastic substrate 3.
  • FIG. 7 A further variation is shown in FIG. 7.
  • the plastic substrate 3 is provided with two metal strips 4 arranged symmetrically to the thread center and running along the thread.
  • B. have a width of about 1.3 mm. These strips are separated from one another by an approximately 1 mm wide, coating-free region 8.
  • the information superimposed on this background pattern has a font size of approximately 3 mm, a font thickness of 600 ⁇ m and extends over all three background areas.
  • the information portions are shown in the form of cutouts 9, while the portions 7 located in the coating-free area 8 consist of opaque coating material.
  • the background is formed by metallic bars 4, which are arranged on the plastic substrate 3 like a checkerboard.
  • the readable information is composed, analogously to the variants described above, of cutouts 9 and metallic areas 7 and, viewed in the transverse direction of the thread, extends over at least one pair of metallic / metal-free areas arranged next to one another.
  • metallized information portions 7 and the metallic background areas 4 with different metals of different intrinsic colors.
  • other non-metallic layers contrasting in color and / or in gray tone when viewed in transmitted light can also contrast, such as e.g. B. opaque, preferably white layers of paint, shiny metallic layers, such as. B. nitride or interference layers, find application.
  • Interference pigment-containing printing inks are also conceivable.
  • the plastic substrate can be provided with non-opaque, preferably glazing printing inks in various colors and tints.
  • the film can also be colored with appropriate colorants in such a way that transparency is retained in a part of the visually accessible spectrum.
  • the luminescent colors can either be colorless in the non-excited state or have a body color that preferably differs from the color of the emission light.
  • the characters or patterns appear colored only in the excitation light or change their color when the thread z. B. is viewed under UV light.
  • Several luminescent substances emitting in different colors increase both the design possibilities and the security against forgery, since the analysis of each individual luminescent substance is necessary for exact imitation. This analysis can be made even more difficult in a simple manner by mixing the different luminescent colors or by printing them overlapping.
  • the thread variants described can be produced by a washing process or another demetallization process, such as those used for. B. are described in EP-OS 0 330 733, to which reference is expressly made in this connection.

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  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Credit Cards Or The Like (AREA)
  • Paper (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)

Abstract

The invention relates to a security paper having a security element in the form of a thread or tape which consists of a translucent plastic film having at least partially opaque coating. The security element has at least one first opaque coating and a translucent region adjoining this opaque coating, as well as items of information which extend from the first opaque coating into the translucent region. <IMAGE>

Description

Die Erfindung betrifft ein Sicherheitspapier mit einem Sicherheitselement in Form eines Fadens oder Bandes, das aus einer lichtdurchlässigen Kunststoffolie mit zumindest teilweiser opaker Beschichtung besteht und das eine Information in Form von visuell und/oder maschinell lesbaren Zeichen oder Mustern aufweist.The invention relates to a security paper with a security element in the form of a thread or tape, which consists of a translucent plastic film with at least partially opaque coating and which has information in the form of visually and / or machine-readable characters or patterns.

Banknoten und andere geldwerte Papiere wie Schecks, Aktien, Reiseschecks, Scheck- und Kreditkarten, aber auch Pässe und Identitätskarten werden häufig durch Einfügen oder Aufbringen von sogenannten Sicherheitsfäden gegen Fälschungen abgesichert. Papiere dieser Art sollen im folgenden als Sicherheitspapiere bezeichnet werden. Die hierfür verwendeten Sicherheitsfäden bestehen aus verschiedensten Materialien in Form von Fäden oder Bändern mit einer Breite von 0,4 bis 10 mm. Sie bestehen vorwiegend aus Kunststoffolien, welche metallisch beschichtet, bedruckt, eingefärbt oder auch z. B. mit pigmentförmigen Substanzen versehen sind. Darüber hinaus ist es auch bekannt, den Sicherheitsfäden durch Auswahl entsprechender Substanzen magnetische, fluoreszierende, röntgenabsorbierende und andere Eigenschaften zu verleihen.Banknotes and other monetary documents such as checks, shares, travelers checks, check and credit cards, but also passports and identity cards are often secured against counterfeiting by inserting or applying so-called security threads. Papers of this type are referred to below as security papers. The security threads used for this purpose consist of a wide variety of materials in the form of threads or tapes with a width of 0.4 to 10 mm. They mainly consist of plastic films, which are metallically coated, printed, colored or z. B. are provided with pigment-shaped substances. In addition, it is also known to give the security threads magnetic, fluorescent, X-ray absorbing and other properties by selecting appropriate substances.

Metallisch beschichtete Fäden werden in jüngster Zeit in zunehmendem Maß für Sicherheitspapiere eingesetzt. Diese Fäden, die teilweise oder ganz im Inneren des Papiers angeordnet werden, sind im auffallenden Licht nahezu unsichtbar. Denn die durch die obere Papierschicht dringenden Lichtstrahlen werden an der metallischen Oberfläche vollständig reflektiert und im Papier diffus gestreut. Im Durchlicht erscheinen derartige Fäden hingegen als schwarze Streifen, die sich von ihrer Umgebung deutlich abheben. Fäden dieser Art können durch einen Aufdruck auf das Papier nicht imitiert werden. Zur Erhöhung der Fälschungssicherheit wurde auch bereits vorgeschlagen, derartige aluminiumbedampfte Sicherheitsfäden mit einer Mikroschrift zu versehen (DE-OS 14 46 851). Dies hat sich aber in der Praxis als wenig sinnvoll herausgestellt, da diese Schrift auf dem sonst undurchsichtigen Sicherheitsfaden im Durchlicht nicht und im Auflicht nur sehr schwer erkennbar ist. Selbst wenn derartige Sicherheitsfäden, wie in der EP-PS 0 059 056 beschrieben, als sogenannte Fensterfäden in das Papier eingebracht werden, bleibt der Mikrodruck im bedruckten Papier schwer auffindbar.Metallic coated threads have recently been increasingly used for security papers. These threads, which are partially or completely arranged inside the paper, are almost invisible in the striking light. Because the light rays penetrating through the upper layer of paper are completely reflected on the metallic surface and diffusely scattered in the paper. In transmitted light, however, such threads appear as black stripes that differ from theirs Stand out clearly from the surroundings. Threads of this type cannot be imitated by printing on the paper. To increase the security against counterfeiting, it has also already been proposed to provide such aluminum-coated security threads with a micro-script (DE-OS 14 46 851). In practice, however, this has proven to be of little use, since this writing on the otherwise opaque security thread is not visible in transmitted light and is very difficult to recognize in incident light. Even if such security threads, as described in EP-PS 0 059 056, are introduced into the paper as so-called window threads, the microprint remains difficult to find in the printed paper.

Aus der EP-OS 0 279 880 ist ein Sicherheitsfaden aus transparentem Folienmaterial bekannt, auf welchem metallisch glänzende Mikroschriftzeichen vorgesehen sind. Die Mikroschriftzeichen sind, wegen der vollständigen Einbettung des Fadens in der Banknote, im Auflicht nicht erkennbar. Im Durchlicht hingegen sind ausschließlich nur die Schriftzeichen erkennbar, da der Sicherheitsfaden selbst transparent ausgeführt ist. Dem Betrachter zeigt sich also im Durchlicht nur noch ein die Banknote durchziehender Schriftzug, der wegen der Kleinheit der Schriftzeichen, seiner Einbettung in die Papiermasse und eventuell einem darüberliegenden Druckbild nur schwer auffindbar ist. Die Nachahmung eines solchen Fadens ist dagegen wegen der geringen Größe der Mikroschriftzeichen erschwert.From EP-OS 0 279 880 a security thread made of transparent film material is known, on which shiny metallic micro characters are provided. The micro-characters are not recognizable in reflected light due to the fact that the thread is completely embedded in the banknote. In contrast, only the characters can be seen in transmitted light, since the security thread itself is transparent. In the transmitted light, the viewer can only see a lettering that runs through the banknote, which is difficult to find due to the small size of the characters, its embedding in the paper mass and possibly a printed image above it. However, imitation of such a thread is difficult because of the small size of the micro characters.

Bei einem weiteren aus der EP-OS 0 330 730 bekannten Sicherheitsfaden wird eine lichtdurchlässige Kunststofffolie, die farbig ausgeführt sein kann, mit einer vollflächigen opaken, insbesondere metallischen Beschichtung versehen, in der Aussparungen in Form von Zeichen oder Mustern erzeugt werden. Der Faden ist im Durchlicht als dunkler Streifen im Dokument erkennbar, während sich die Schriftzeichen und Muster gegenüber ihrer direkten Umgebung, der opaken Fadenbeschichtung, und zusätzlich gegenüber der weiteren Umgebung, dem Dokumentenmaterial, als helle, eventuell farbige Flächen gut erkennbar abheben. Der Faden ist damit im Dokument sehr gut auffindbar und die Zeichen sind bei entsprechender Größe jederzeit auch ohne Hilfsmittel lesbar.In another security thread known from EP-OS 0 330 730, a translucent plastic film, which can be colored, is provided with a full-surface opaque, in particular metallic, coating, in which recesses are produced in the form of characters or patterns. The thread can be seen in transmitted light as a dark stripe in the document, while the Stand out characters and patterns from their direct surroundings, the opaque thread coating, and additionally from the wider surroundings, the document material, as bright, possibly colored areas. The thread is therefore very easy to find in the document and the characters can be read at any time without tools if the size is appropriate.

Wird ein derartiger Faden als Fensterfaden in ein Sicherheitspapier eingebracht, so bietet er im Bereich der Fenster einen zusätzlichen Kopierschutz, da der metallische Glanz der Beschichtung von einem Kopiergerät nicht reproduziert werden kann und die Kopie daher diese Bereiche schwarz wiedergibt.If such a thread is introduced into a security paper as window thread, it offers additional copy protection in the area of the windows, since the metallic gloss of the coating cannot be reproduced by a copying machine and the copy therefore reproduces these areas in black.

Der Erfindung liegt nun die Aufgabe zugrunde, ein Sicherheitspapier mit einem faden- oder bandförmigen Sicherheitselement herzustellen, das einen hohen Fälschungsschutz bietet, gleichzeitig aber eine gute Erkennbarkeit des Sicherheitselements sowie der Zeichen ohne technische Hilfsmittel gewährleistet.The invention is based on the object of producing a security paper with a thread-like or tape-like security element which offers a high level of protection against counterfeiting, but at the same time ensures that the security element and the characters are easily recognizable without technical aids.

Diese Aufgabe wird durch die im Kennzeichen des Hauptanspruchs genannten Merkmale gelöst. Weiterbildungen der Erfindung sind Gegenstand von untergeordneten Ansprüchen.This object is achieved by the features mentioned in the characterizing part of the main claim. Further developments of the invention are the subject of subordinate claims.

In einer bevorzugten Ausführungsform weist das erfindungsgemäße Sicherheitspapier einen Sicherheitsfaden, bestehend aus einem lichtdurchlässigen Kunststoffsubstrat mit rasterartig ausgeführter Metallbeschichtung auf. Hierbei kann es sich beispielsweise um ein periodisches Streifenmuster handeln, das bezüglich der Laufrichtung des Fadens eine beliebige Orientierung einnehmen kann. Zusätzlich trägt dieser Sicherheitsfaden eine insbesondere visuell lesbare Information, die sich über mehrere opake, metallische Bereiche sowie metallfreie Zwischenbereiche erstreckt. Das heißt, die Informationen, welche beliebige Zeichen oder Muster umfassen können, liegen als lichtdurchlässige metallfreie Bereiche vor.In a preferred embodiment, the security paper according to the invention has a security thread consisting of a translucent plastic substrate with a grid-like metal coating. This can be a periodic stripe pattern, for example, which can have any orientation with respect to the running direction of the thread. In addition, this security thread carries, in particular, visually readable information that spans several opaque, metallic areas and metal-free areas Intermediate areas extends. This means that the information, which can include any characters or patterns, is available as translucent, metal-free areas.

Diese rasterartige Anordnung der Metallbereiche hat den Vorteil, daß durch den häufigen Metall-/Nichtmetall-Wechsel Nachahmungen des visuellen Eindrucks wenn überhaupt nur mittels aufwendiger Techniken möglich sind.This grid-like arrangement of the metal areas has the advantage that the frequent metal / non-metal changes make it possible to imitate the visual impression, if at all, only by means of complex techniques.

Alternativ zu der vollständig lichtdurchlässigen Darstellung der Informationen können sich die Zeichen und/oder Muster auch aus alternierend angeordneten opaken und lichtdurchlässigen Bereichen zusammensetzen. In diesem Fall befinden sich die lichtdurchlässigen Informationsanteile im Bereich der opaken Hintergrundbeschichtung und die opaken Informationsanteile in den beschichtungsfreien lichtdurchlässigen Zwischenbereichen, so daß sich die Informationen zum Hintergrundmuster kontrastierend abheben. Durch diese Darstellungsart ergeben sich ebenfalls häufige Metall-/Nichtmetall-Wechsel, deren passergenaue Anordnung nur mit aufwendigen Techniken nachahmbar ist.As an alternative to the completely translucent representation of the information, the characters and / or patterns can also be composed of alternately arranged opaque and translucent areas. In this case, the translucent information components are in the area of the opaque background coating and the opaque information components are in the coating-free translucent intermediate areas, so that the information on the background pattern stands out in contrast. This type of representation also results in frequent metal / non-metal changes, the precise registration of which can only be mimicked using complex techniques.

Im Papier bietet das erfindungsgemäße Sicherheitselement, wie alle metallisierten Sicherheitsfäden, einen guten Kopierschutz durch den bekannten Auflicht-/Durchlicht-Effekt. Größere zusammenhängende metallische Flächen erscheinen im Auflicht als dunkle Stellen im Papier, so daß bei den bekannten Sicherheitselementen bereits versucht wurde, diesen visuellen Eindruck zu imitieren. Kleine metallische Bereiche, wie die in der EP-OS 0 279 880 beschriebenen metallischen Schriftzeichen sind zwar im Auflicht weniger wahrnehmbar, aber auch im Durchlicht schwer auffindbar, so daß eine Überprüfung dieses Echtheitsmerkmals erschwert ist. Das erfindungsgemäße Sicherheitselement dagegen ist aufgrund des zu ca. 50 % aus opaken Bereichen bestehenden Hintergrundmusters leicht im Papier auffindbar und überprüfbar. Überdies können aufgrund der rasterartigen Anordnung der opaken Bereiche und der damit verbundenen häufigen Wechsel zwischen opaken und nicht opaken Bereichen Imitationen des visuellen Eindrucks im Auflicht verhindert oder zumindest stark erschwert werden.In paper, the security element according to the invention, like all metallized security threads, offers good copy protection through the known incident light / transmitted light effect. Larger coherent metallic surfaces appear in the reflected light as dark spots in the paper, so that attempts have already been made to imitate this visual impression in the known security elements. Small metallic areas, such as the metallic characters described in EP-OS 0 279 880, are less noticeable in incident light, but are also difficult to find in transmitted light, so that it is difficult to check this authenticity feature. The security element according to the invention, however, is due 50% of the background pattern consisting of opaque areas can be easily found and checked in the paper. Moreover, due to the grid-like arrangement of the opaque areas and the associated frequent changes between opaque and non-opaque areas, imitations of the visual impression in incident light can be prevented or at least made very difficult.

Weitere vorteilhafte Ausführungsformen werden anhand der Figuren erläutert. Zur besseren Anschaulichkeit wird in den Figuren auf eine maßstabs- und proportionsgetreue Darstellung verzichtet.Further advantageous embodiments are explained with the aid of the figures. For the sake of clarity, the figures are not drawn to scale and proportion.

Die Figuren zeigen:

Fig. 1
Sicherheitsdokument gemäß der Erfindung,
Fig. 2 - 8
verschiedene Ausführungsformen des erfindungsgemäßen Sicherheitselements.
The figures show:
Fig. 1
Security document according to the invention,
Figs. 2-8
different embodiments of the security element according to the invention.

Fig. 1 zeigt ein erfindungsgemäßes Sicherheitsdokument 1, hier eine Banknote, in die ein faden- oder bandförmiges Sicherheitselement 2 in Form eines Fensterfadens eingewoben ist, so daß der Faden in bestimmten Abständen, den sogenannten Fenstern 3, direkt an die Papieroberfläche tritt. Der Faden kann jedoch auch vollständig in das Papier eingebettet werden oder als vollflächig außenliegendes Element ausgeführt sein. Die Breite des Fadens kann beispielsweise zwischen 0,4 und 10 mm betragen.Fig. 1 shows a security document 1 according to the invention, here a banknote into which a thread-like or ribbon-shaped security element 2 is woven in the form of a window thread, so that the thread comes directly to the paper surface at certain intervals, the so-called windows 3. However, the thread can also be completely embedded in the paper or be designed as a full-surface element. The width of the thread can be, for example, between 0.4 and 10 mm.

Die besonderen Ausführungsformen des Sicherheitselements 2 werden im folgenden anhand der Fig. 2 - 8 näher erläutert. Diese Figuren zeigen jeweils einen Ausschnitt aus einem erfindungsgemäßen Sicherheitselement in Aufsicht.The special embodiments of the security element 2 are explained in more detail below with reference to FIGS. 2-8. These figures each show a section of a security element according to the invention in supervision.

Die in Fig. 2 dargestellte Ausführungsform besteht aus einem transparenten oder zumindest transluzenten Kunststoffsubstrat 3, das mit einer streifenförmigen Metallisierung 4 versehen ist. Über mehrere darartige Streifen erstreckt sich eine visuell und/oder maschinell lesbare Information 5, die sich aufgrund der entsprechend geformten Aussparungen in den opaken Streifen von diesem Hintergrund abhebt. Die metallischen Streifen 4 können beispielsweise eine Breite von 200 µm und bezüglich der Laufrichtung des Fadens eine um 45° geneigte Orientierung aufweisen, während die Schriftstärke der kontrastierenden Information 600 µm betragen kann. Das in Fig. 2 gezeigte Beispiel weist einen beschichtungsfreien Randbereich 6 auf, der während der Herstellung der Fäden in Bahnform als Schnittoleranz dient und insbesondere bei der Einbringung als Fensterfaden für ein einheitliches Erscheinungsbild des Fadens im Fensterbereich sorgt. Auf diesen Randbereich 6 kann bei der Herstellung von vollständig offenliegenden bzw. eingebetteten Fäden verzichtet werden.The embodiment shown in FIG. 2 consists of a transparent or at least translucent plastic substrate 3, which is provided with a strip-like metallization 4. Visually and / or machine-readable information 5 extends over a number of such strips and stands out from this background due to the correspondingly shaped recesses in the opaque strips. The metallic strips 4 can, for example, have a width of 200 μm and an orientation inclined by 45 ° with respect to the running direction of the thread, while the text thickness of the contrasting information can be 600 μm. The example shown in FIG. 2 has a coating-free edge area 6, which serves as a cutting tolerance during the production of the threads in the form of a web and, in particular when it is introduced as a window thread, ensures a uniform appearance of the thread in the window area. This edge area 6 can be dispensed with in the production of completely exposed or embedded threads.

Die Orientierung der metallischen Streifen ist beliebig wählbar und beträgt in einer weiteren bevorzugten Ausführungsform 0° bezüglich der Laufrichtung des Fadens, wie in Fig. 3 dargestellt. Analoges gilt selbstverständlich für die gewählten Streifenbreiten und Schriftstärken.The orientation of the metallic strips can be selected as desired and, in a further preferred embodiment, is 0 ° with respect to the running direction of the thread, as shown in FIG. 3. Of course, the same applies to the selected stripe widths and font thickness.

Auch muß es sich nicht notwendigerweise um ein streifenförmiges Hintergrundmuster handeln, sondern es können auch beliebige andere rasterartige Metallanordnungen eingesetzt werden, wie z. B. ein Punktraster oder ein Raster aus beliebig geformten geometrischen Figuren. Es ist lediglich darauf zu achten, daß die Ausdehnung der Metallbereiche und die Schriftgröße der Information so aufeinander abgestimmt sind, daß die Information zum Hintergrund kontrastiert und somit erkennbar ist.Also, it does not necessarily have to be a striped background pattern, but any other grid-like metal arrangements can also be used, such as, for. B. a grid of points or a grid of arbitrarily shaped geometric figures. It is only necessary to ensure that the extent of the metal areas and the font size of the information are coordinated with one another in such a way that the information contrasts with the background and is therefore recognizable.

Gemäß einer weiteren Ausführungsform der Erfindung können die Informationen auch aus opaken und lichtdurchlässigen Bereichen, die sich von ihrer jeweiligen Umgebung abheben, zusammensetzen. Derartige Varianten zeigen die Fig. 4 - 8.According to a further embodiment of the invention, the information can also be composed of opaque and translucent areas which stand out from their respective surroundings. Such variants are shown in FIGS. 4-8.

Fig. 4 zeigt ein ähnliches Hintergrundmuster wie Fig. 2, d. h. um 45° zur Laufrichtung des Fadens geneigte opake Metallstreifen der Breite 400 µm, die im Bereich der Zeichen entsprechend geformte Aussparungen 9 aufweisen. Invers hierzu erhalten die in den beschichtungsfreien Zwischenbereichen liegenden Informationsanteile 7 eine opake Beschichtung, die ebenfalls streifenförmig ausgebildet ist und die gleiche Winkelorientierung aufweist.Fig. 4 shows a background pattern similar to Fig. 2, i.e. H. opaque metal strips 400 µm wide, inclined at 45 ° to the running direction of the thread, which have correspondingly shaped recesses 9 in the area of the characters. Inversely, the information portions 7 located in the coating-free intermediate areas are given an opaque coating, which is also strip-shaped and has the same angular orientation.

Fig. 5 zeigt den analogen Fall für ein parallel zur Laufrichtung des Fadens verlaufendes streifenförmiges Hintergrundmuster.5 shows the analogous case for a stripe-shaped background pattern running parallel to the running direction of the thread.

Eine andere Alternative ist in Fig. 6 dargestellt. In diesem Fall ist das Kunststoffsubstrat 3 in zwei parallel zur Fadenlaufrichtung angeordnete Teilbereiche untergliedert. Der obere Bereich umfaßt die Metallisierung 4, in welcher die lichtdurchlässigen Anteile 9 der Information vorgesehen sind. Die opaken Informationsanteile 7 befinden sich in dem unteren beschichtungsfreien Bereich 8 des Kunststoffsubstrats 3.Another alternative is shown in FIG. 6. In this case, the plastic substrate 3 is subdivided into two subregions arranged parallel to the thread running direction. The upper area comprises the metallization 4, in which the translucent portions 9 of the information are provided. The opaque information portions 7 are located in the lower, coating-free area 8 of the plastic substrate 3.

Eine weitere Variation bietet Fig. 7. Hier ist das Kunststoffsubstrat 3 mit zwei symmetrisch zur Fadenmitte angeordneten entlang dem Faden verlaufenden Metallstreifen 4 versehen, die z. B. eine Breite von ca. 1,3 mm besitzen. Diese Streifen sind durch einen ca. 1 mm breiten beschichtungsfreien Bereich 8 voneinander getrennt. Die diesem Untergrundmuster überlagerte Information hat eine Schriftgröße von etwa 3 mm, eine Schriftstärke von 600 µm und erstreckt sich über alle drei Hintergrundbereiche. In den Metallbalken 4 werden die Informationsanteile in Form von Aussparungen 9 dargestellt, während die in dem beschichtungsfreien Bereich 8 befindlichen Anteile 7 aus opakem Beschichtungsmaterial bestehen.A further variation is shown in FIG. 7. Here, the plastic substrate 3 is provided with two metal strips 4 arranged symmetrically to the thread center and running along the thread. B. have a width of about 1.3 mm. These strips are separated from one another by an approximately 1 mm wide, coating-free region 8. The information superimposed on this background pattern has a font size of approximately 3 mm, a font thickness of 600 µm and extends over all three background areas. In the metal bar 4, the information portions are shown in the form of cutouts 9, while the portions 7 located in the coating-free area 8 consist of opaque coating material.

Fig. 8 zeigt eine weitere Ausführungsform der zusammengesetzten Informationen vor einem teilweise metallisierten Hintergrund. In diesem Fall wird der Hintergrund von metallischen Balken 4 gebildet, die schachbrettartig auf dem Kunststoffsubstrat 3 angeordnet sind. Die lesbaren Informationen setzen sich analog zu den oben beschriebenen Varianten aus Aussparungen 9 und metallischen Bereichen 7 zusammen und erstrecken sich in Querrichtung des Fadens gesehen über mindestens ein Paar nebeneinander angeordneter metallischer/metallfreier Bereiche.8 shows another embodiment of the composite information against a partially metallized background. In this case, the background is formed by metallic bars 4, which are arranged on the plastic substrate 3 like a checkerboard. The readable information is composed, analogously to the variants described above, of cutouts 9 and metallic areas 7 and, viewed in the transverse direction of the thread, extends over at least one pair of metallic / metal-free areas arranged next to one another.

Es ist natürlich möglich, die metallisierten Informationsanteile 7 und die metallischen Hintergrundbereiche 4 mit verschiedenen Metallen unterschiedlicher Eigenfarbe zu gestalten. Ganz generell können statt einer Metallisierung oder metallischen Druckfarbe auch andere bei Betrachtung im Durchlicht zur Umgebung farblich und/oder im Grauton kontrastierende nichtmetallische Schichten, wie z. B. deckende, vorzugsweise weiße Farbschichten, metallisch glänzende Schichten, wie z. B. Nitannitrid oder Interferenzschichten, Anwendung finden. Auch interferenzpigmenthaltige Druckfarben sind denkbar.It is of course possible to design the metallized information portions 7 and the metallic background areas 4 with different metals of different intrinsic colors. In general, instead of a metallization or metallic printing ink, other non-metallic layers contrasting in color and / or in gray tone when viewed in transmitted light can also contrast, such as e.g. B. opaque, preferably white layers of paint, shiny metallic layers, such as. B. nitride or interference layers, find application. Interference pigment-containing printing inks are also conceivable.

Ebenso kann das Kunststoffsubstrat mit nichtdeckenden, vorzugsweise lasierenden Druckfarben in verschiedenen Farben und Tönungen versehen werden. Die Folie kann jedoch auch mit entsprechenden Farbmitteln so eingefärbt werden, daß in einem Teilbereich des visuell zugänglichen Spektrums die Transparenz erhalten bleibt. Durch die Verwendung lumineszierender Farben kann der visuelle Eindruck dieses Fadens noch weiter verbessert und effektvoller ausgeführt werden. Die Lumineszenzfarben können entweder im nicht angeregten Zustand farblos sein oder eine Körperfarbe besitzen, die sich vorzugsweise von der Farbe des Emissionslichts unterscheidet. Die Schriftzeichen oder Muster erscheinen dann erst im Anregungslicht farbig bzw. wechseln ihre Farbe, wenn der Faden z. B. unter UV-Licht betrachtet wird. Mehrere in unterschiedlichen Farben emittierende Lumineszenzstoffe erhöhen sowohl die gestalterische Möglichkeiten als auch die Fälschungssicherheit, da zur exakten Nachahmung die Analyse jedes einzelnen Lumineszenzstoffes notwendig ist. Diese Analyse kann in einfacher Weise noch weiter erschwert werden, indem die verschiedenen Lumineszenzfarben gemischt oder überlappend aufgedruckt werden.Likewise, the plastic substrate can be provided with non-opaque, preferably glazing printing inks in various colors and tints. However, the film can also be colored with appropriate colorants in such a way that transparency is retained in a part of the visually accessible spectrum. By the use of luminescent colors can further improve the visual impression of this thread and make it more effective. The luminescent colors can either be colorless in the non-excited state or have a body color that preferably differs from the color of the emission light. The characters or patterns appear colored only in the excitation light or change their color when the thread z. B. is viewed under UV light. Several luminescent substances emitting in different colors increase both the design possibilities and the security against forgery, since the analysis of each individual luminescent substance is necessary for exact imitation. This analysis can be made even more difficult in a simple manner by mixing the different luminescent colors or by printing them overlapping.

Die Herstellung der beschriebenen Fadenvarianten kann, sofern keine Druckfarben benutzt werden, nach einem Waschverfahren oder einem anderen Demetallisierungsverfahren erfolgen, wie sie z. B. in der EP-OS 0 330 733 beschrieben sind, auf welche in diesem Zusammenhang ausdrücklich Bezug genommen wird.Unless printing inks are used, the thread variants described can be produced by a washing process or another demetallization process, such as those used for. B. are described in EP-OS 0 330 733, to which reference is expressly made in this connection.

Claims (13)

Sicherheitspapier mit einem Sicherheitselement in Form eines Fadens oder Bandes, das aus einer lichtdurchlässigen Kunststoffolie mit zumindest teilweise opaker Beschichtung besteht und das eine Information in Form von visuell und/oder maschinell lesbaren Zeichen oder Mustern aufweist, dadurch gekennzeichnet, daß das Sicherheitselement (2) wenigstens eine erste opake Beschichtung (4) und einen an die opake Beschichtung angrenzenden lichtdurchlässigen Bereich (3, 8) aufweist, und daß sich die Information (5, 7, 9) von der ersten opaken Beschichtung (4) in den lichtdurchlässigen Bereich (3, 8) erstreckt.Security paper with a security element in the form of a thread or tape, which consists of a translucent plastic film with at least partially opaque coating and which has information in the form of visually and / or machine-readable characters or patterns, characterized in that the security element (2) at least has a first opaque coating (4) and a translucent area (3, 8) adjacent to the opaque coating, and that the information (5, 7, 9) from the first opaque coating (4) into the translucent area (3, 8) extends. Sicherheitspapier nach Anspruch 1, dadurch gekennzeichnet, daß die in der ersten opaken Beschichtung (4) angeordneten Informationsteile dort in Form von Aussparungen (5, 9) vorliegen.Security paper according to claim 1, characterized in that the information parts arranged in the first opaque coating (4) are present there in the form of cutouts (5, 9). Sicherheitspapier nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die erste opake Beschichtung (4) ein periodisches Raster aus beliebigen geometrischen Figuren ist und der lichtdurchlässige Bereich (3) durch die beschichtungsfreien Zwischenräume gebildet wird.Security paper according to claim 1 or 2, characterized in that the first opaque coating (4) is a periodic grid of arbitrary geometric figures and the translucent area (3) is formed by the coating-free spaces. Sicherheitspapier nach Anspruch 3, dadurch gekennzeichnet, daß die opake Beschichtung (4) ein periodisches Streifenmuster ist, das unter einem bestimmten Winkel zur Laufrichtung des Sicherheitselements angeordnet ist.Security paper according to claim 3, characterized in that the opaque coating (4) is a periodic stripe pattern which is arranged at a certain angle to the running direction of the security element. Sicherheitspapier nach Anspruch 4, dadurch gekennzeichnet, daß das Streifenmuster unter einem Winkel von 0° oder 45° verläuft.Security paper according to claim 4, characterized in that the stripe pattern extends at an angle of 0 ° or 45 °. Sicherheitspapier nach wenigstens einem der Ansprüche 1 - 5, dadurch gekennzeichnet, daß die im lichtdurchlässigen Bereich (3, 8) angeordneten Teile der Information durch eine zweite opake Beschichtung (7) dargestellt sind.Security paper according to at least one of claims 1-5, characterized in that the parts of the information arranged in the translucent area (3, 8) are represented by a second opaque coating (7). Sicherheitspapier nach Anspruch 6, dadurch gekennzeichnet, daß die zweite opake Beschichtung (7) das gleiche Rastermuster und die gleiche Orientierung aufweist wie die erste opake Beschichtung (4).Security paper according to claim 6, characterized in that the second opaque coating (7) has the same grid pattern and the same orientation as the first opaque coating (4). Sicherheitspapier nach Anspruch 6, dadurch gekennzeichnet, daß die erste opake Beschichtung (4) ein parallel zur Laufrichtung des Sicherheitselements verlaufender Streifen ist.Security paper according to claim 6, characterized in that the first opaque coating (4) is a strip running parallel to the direction of travel of the security element. Sicherheitspapier nach Anspruch 6, dadurch gekennzeichnet, daß die erste opake Beschichtung (4) aus zwei parallel zur Laufrichtung des Sicherheitselements angeordneten Bereichen besteht, die durch den ebenfalls parallel zur Laufrichtung des Sicherheitselements angeordneten lichtdurchlässigen Bereich (8) getrennt sind.Security paper according to claim 6, characterized in that the first opaque coating (4) consists of two areas arranged parallel to the running direction of the security element, which are separated by the translucent area (8) also arranged parallel to the running direction of the security element. Sicherheitspapier nach Anspruch 6, dadurch gekennzeichnet, daß die erste opake Beschichtung (4) sowie der lichtdurchlässige Bereich (8) als Balken ausgebildet sind, die entlang der Laufrichtung des Sicherheitselements (2) schachbrettmusterartig angeordnet sind.Security paper according to Claim 6, characterized in that the first opaque coating (4) and the translucent area (8) are designed as bars which are arranged in a checkerboard pattern along the running direction of the security element (2). Sicherheitspapier nach wenigstens einem der Ansprüche 1 - 10, dadurch gekennzeichnet, daß die erste und/oder die zweite opake Beschichtung (4, 7) eine Metallisierung oder eine metallisch wirkende Druckfarbe ist.Security paper according to at least one of Claims 1-10, characterized in that the first and / or the second opaque coating (4, 7) is a metallization or a metallic ink. Sicherheitspapier nach wenigstens einem der Ansprüche 1 - 11, dadurch gekennzeichnet, daß die zweite opake Beschichtung (7) eine andere Eigenfarbe aufweist als die erste.Security paper according to at least one of claims 1-11, characterized in that the second opaque coating (7) has a different inherent color than the first. Sicherheitselement zur Einbettung in ein Sicherheitspapier in Form eines Fadens oder Bandes, das aus einer lichtdurchlässigen Kunststoffolie mit zumindest teilweiser opaker Beschichtung besteht und daß eine Information in Form von visuell und/oder maschinell lesbaren Zeichen oder Mustern aufweist, dadurch gekennzeichnet, daß das Sicherheitselement (2) wenigstens eine erste opake Beschichtung (4) und einen an die opake Beschichtung (4) angrenzenden lichtdurchlässigen Bereich (3, 8) aufweist, und daß sich die Information (5, 7, 9) von der ersten opaken Beschichtung in den lichtdurchlässigen Bereich erstreckt.Security element for embedding in a security paper in the form of a thread or tape, which consists of a translucent plastic film with at least partially opaque coating and which has information in the form of visually and / or machine-readable characters or patterns, characterized in that the security element (2 ) has at least one first opaque coating (4) and a translucent area (3, 8) adjoining the opaque coating (4), and that the information (5, 7, 9) extends from the first opaque coating into the translucent area .
EP94120464A 1993-12-23 1994-12-22 Security paper with thread- or tape-like security element Expired - Lifetime EP0659936B1 (en)

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DE4344298A DE4344298A1 (en) 1993-12-23 1993-12-23 Security paper with a thread-like or ribbon-shaped security element
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EA012364B1 (en) * 2005-09-29 2009-10-30 Де Ля Рю Интернэшнл Лимитед Security device for security substrates
WO2007036683A1 (en) * 2005-09-29 2007-04-05 De La Rue International Limited Security device for security substrates
GB2430647B (en) * 2005-09-29 2008-09-17 Rue De Int Ltd Security device for security substrates
WO2007036696A1 (en) 2005-09-30 2007-04-05 De La Rue International Limited Security device for security substrates
EP2463438A1 (en) 2005-09-30 2012-06-13 De La Rue International Limited Security device for security substrates
CN101243227B (en) * 2005-09-30 2012-06-06 德拉鲁国际公司 Security device for security substrates
EA014139B1 (en) * 2005-09-30 2010-10-29 Де Ля Рю Интернэшнл Лимитед Security device for security substrates
FR2901812A1 (en) * 2006-06-06 2007-12-07 Arjowiggins Security Soc Par A SECURITY ELEMENT COMPRISING A DISCERNABLE MOTIF
WO2007141459A3 (en) * 2006-06-06 2008-01-31 Arjowiggins Security Safety element comprising a detectable design
WO2007141459A2 (en) * 2006-06-06 2007-12-13 Arjowiggins Security Safety element comprising a detectable design
WO2008095706A1 (en) * 2007-02-07 2008-08-14 Leonhard Kurz Stiftung & Co. Kg Security element
CN101678664B (en) * 2007-02-07 2013-07-31 雷恩哈德库兹基金两合公司 Security element
EP2384901B2 (en) † 2010-05-04 2017-02-22 Giesecke & Devrient GmbH Value document with recess
WO2012139354A1 (en) * 2011-04-11 2012-10-18 北京新岸线软件科技有限公司 Paper money identifying method and device
EP2723945B1 (en) 2011-06-23 2016-09-14 Arjowiggins Security Security thread
EP2864131B1 (en) 2012-06-22 2018-02-21 Oberthur Fiduciaire SAS Security element and document with same
WO2015173753A1 (en) 2014-05-16 2015-11-19 Arjowiggins Security Method for manufacturing a security element
EP3142864A1 (en) * 2014-05-16 2017-03-22 Arjowiggins Security Method for manufacturing a security element
EP3142864B1 (en) * 2014-05-16 2022-07-27 Oberthur Fiduciaire SAS Method for manufacturing a security element
EP3954544A1 (en) * 2020-08-14 2022-02-16 Hueck Folien Gesellschaft m.b.H. Flat security element with optical security features
WO2022034193A1 (en) * 2020-08-14 2022-02-17 Hueck Folien Gesellschaft M.B.H. Flat security element with optical security features

Also Published As

Publication number Publication date
EP0659936B1 (en) 2000-04-12
DE4344298A1 (en) 1995-06-29
FI946078A0 (en) 1994-12-23
US5573639A (en) 1996-11-12
FI115545B (en) 2005-05-31
ES2144030T3 (en) 2000-06-01
EP0659936A3 (en) 1996-02-07
FI946078A (en) 1995-06-24
ATE191760T1 (en) 2000-04-15
DE59409288D1 (en) 2000-05-18

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