EP0659935A2 - Procédé et dispositif pour munir un papier fiduciaire d'éléments de sécurité - Google Patents

Procédé et dispositif pour munir un papier fiduciaire d'éléments de sécurité Download PDF

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Publication number
EP0659935A2
EP0659935A2 EP94120572A EP94120572A EP0659935A2 EP 0659935 A2 EP0659935 A2 EP 0659935A2 EP 94120572 A EP94120572 A EP 94120572A EP 94120572 A EP94120572 A EP 94120572A EP 0659935 A2 EP0659935 A2 EP 0659935A2
Authority
EP
European Patent Office
Prior art keywords
feature
paper web
mixture
gas
nozzle
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
EP94120572A
Other languages
German (de)
English (en)
Other versions
EP0659935B1 (fr
EP0659935A3 (fr
Inventor
Dr. Thomas Attenberger
Dieter Stein
Dr. Gerhard Stentel
Dr. Wilhelm Ilgmann
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+Devrient GmbH
Original Assignee
Giesecke+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+Devrient GmbH filed Critical Giesecke+Devrient GmbH
Publication of EP0659935A2 publication Critical patent/EP0659935A2/fr
Publication of EP0659935A3 publication Critical patent/EP0659935A3/fr
Application granted granted Critical
Publication of EP0659935B1 publication Critical patent/EP0659935B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M3/00—Printing processes to produce particular kinds of printed work, e.g. patterns
    • B41M3/14—Security printing
    • 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
    • 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
    • D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
    • D21H23/02—Processes or apparatus for adding material to the pulp or to the paper characterised by the manner in which substances are added
    • D21H23/22—Addition to the formed paper
    • D21H23/50—Spraying or projecting

Definitions

  • the invention relates to a method for equipping securities with authenticity features, in which at least one feature substance is applied to a moving, still wet paper web in the course of paper manufacture, in particular a paper web for the production of securities.
  • Securities in the sense of the invention are banknotes, passports, check forms, shares, certificates, stamps, air tickets and the like.
  • the simplified term “security paper” or “security” therefore always includes documents of the type mentioned below.
  • those authenticity features have proven particularly useful that can only be incorporated into the security paper during manufacture.
  • Such features are, for example, watermarks, security threads, chemically reacting additives and mottled fibers. These features are particularly suitable for the usual visual authenticity check of security papers. Although these features are visually recognizable, they guarantee a high level of security because that includes Paper equipped with these features can only be produced with complex machines to which the counterfeiter has no access and whose purchase or replica is not economically worthwhile for counterfeiting purposes.
  • GB-PS 643 430 is a method for Production of a paper web known, which is provided with watermarks.
  • an endless metal strip is guided over the resulting paper web of a Fourdrinier machine and moves at the same speed as the resulting paper web.
  • the metal band is provided with cutouts in the form of the desired watermark.
  • a method is finally known in which features such as dyes or chemicals are placed in the interior of a paper web.
  • a first paper web is produced in a first step and the feature substance, in Liquid dissolved, applied to one of the surfaces of this paper web using an inkjet printer.
  • the side of the first paper web loaded with the feature substance is covered with a second, separately produced paper web.
  • the object of the present invention is to propose a security as well as a method and a device for its production, in which feature substances can be introduced in a defined manner and concentration in a localized manner without the fiber structure of the paper being visibly changed.
  • the basic idea of the invention is that in a first process step a feature substance in powder form is mixed with a gas in such a way that agglomerates of feature particles easily disintegrate and that the particles are then present and held in the gas in a defined homogeneous concentration.
  • the still wet paper web is loaded with the mixture via a nozzle in such a way that the feature particles hit the security in the free gas jet with a relatively sharply defined scattering cone.
  • the method according to the invention it is possible for the first time to provide a paper web along one or more tracks with a feature substance which is present in a homogeneous distribution in the paper over large production batches even at a very low concentration.
  • the process ensures that no changes in the paper structure are visible on the finished paper web are.
  • a powdery characteristic substance which can be kept in a gas in a very low concentration in a homogeneous distribution and which is transferred to the wet web via at least one nozzle positioned at a certain distance from the paper web.
  • Two limits can be defined for the distance of the nozzle to the paper web, which should not be exceeded or undershot.
  • the minimum distance between the nozzle and the paper web should be chosen so large that the paper web does not touch the nozzle even in the event of fluctuations perpendicular to the direction of transport.
  • the maximum distance depends on various parameters, including the speed at which the gas / feature mixture emerges from the nozzle and the size, shape and weight of the individual particles. Given predetermined parameters, the distance is selected such that a directed particle stream is applied to the paper web, the particles hitting the paper web at a speed sufficient to firmly anchor the particles in the paper pulp.
  • the parameters for the concentration of the feature in the paper are the time throughput through the nozzle, the average particle size, the average fiber length of the paper, the location of the introduction or the water content of the paper web and the speed of the running paper web.
  • Fig. 1 shows schematically a circular screen paper machine, as is typically used for the production of security papers.
  • a paper web 3 is formed on the circular wire 2, which is removed by a take-off felt 6 and transported away.
  • the gas / feature mixture is generated in a unit 4, which will be discussed in more detail later, and guided to the nozzles 7 via a pipe system 8, a distribution and control system 5.
  • the mixture emerges from the nozzles at high speed, as a result of which the feature substance reaches the paper web which is still wet at this point.
  • the components mentioned and in particular the nozzles can be installed at different points in the production process.
  • the highly schematic arrangement in FIG. 1 only adjusts Example.
  • FIG. 2 shows a detail from FIG. 1 in the area of the nozzle opening.
  • the distance A which should be maintained from the nozzle opening to the paper web, is essentially determined by the exit velocity of the gas and the shape and size of the feature substance. It is important to note that the distance should be at least large enough to prevent damage to the paper web from the gas / characteristics mixture flowing out. With a discharge speed between 100 and 300 m / s and a particle size between 0.1 and 20 ⁇ m, a value between 0.5 and 5 cm must be set for the distance A.
  • the distance must be at least so large that any movement of the paper web at this point perpendicular to the transport direction does not lead to contact of the web with the nozzle, which easily clog could.
  • the impact velocity of the particles can be up to 200 m / s depending on the particle size and nozzle configuration. A visible change in the paper web is nevertheless avoided on the one hand because of the small size of the particles and on the other hand because of the low concentration of the particles in the gas stream.
  • Suitable materials are all materials that can be produced in powder form and that are visually or mechanically recognizable, that is, that have a physically measurable or detectable effect.
  • substances which have fluorescent, magnetic or electrical properties or a combination of these properties are particularly suitable.
  • the unit 4 with the aid of which the gas / feature mixture is generated, can consist, for example, of a so-called fluidized bed generator, which is shown schematically in FIG. 3.
  • the basic functioning of a fluid bed generator is e.g. B. described in U.S. Patent 3,997,433.
  • a reservoir of the feature powder 15 is located in a storage container 14.
  • the coarse material 19 which preferably consists of spherical particles, is located in a so-called aerosol chamber 18 Wall 16 can still penetrate the pores of the partially permeable wall 17.
  • the feature substance is continuously fed to the coarse material in small doses via a conveyor device 20, which can be designed, for example, as a chain or screw conveyor system.
  • An aerosol chamber is supplied with a gas stream 21 of an inert gas, so that agglomerates of the feature substances on the coarse material are rubbed and crushed, and the comminuted feature substances are passed through the gas stream into the pipe system 8.
  • the coarse material is chosen so that it cannot get into the pipe system 8 due to its own weight due to the applied gas stream 21.
  • the feature substance on the other hand, is torn upwards by the gas stream and leaves the fluidized bed generator with the gas in a homogeneous distribution and predetermined concentration.
  • the delivery capacity of the chain or screw conveyor is also available as a parameter for setting the concentration of the feature substance in the gas.
  • concentrations of the feature in the gas can be generated in a wide range. This typically ranges from 5 mg / m3 to 50 g / m3 and is largely determined by the delivery rate of the chain or screw feeder.
  • the coarse material which shows practically no abrasion, so that no foreign particles are introduced into the paper with the feature substances.
  • the coarse material is selected from the same material from which the feature substance consists, that is to say it differs only in the grain size from the feature substance to be introduced. It has also been shown that such coarse material can also be used as those which are added to the pulp during their production, such as crystalline whitening agents.
  • the coarse material When selecting the coarse material, however, it must always be ensured that substances are used that have at least the same hardness as the feature substances, so that the abrasion on the coarse material is as low as possible and at the same time Agglomerates of the feature powder are broken up by collisions with the coarse material.
  • gases which are inert with regard to the feature powder and the coarse material, ie which do not undergo a chemical reaction with them. Nitrogen, argon and air are particularly suitable.
  • the fluidized bed generator In order to prevent feature powder from being deposited on the walls of the fluidized bed generator, it is possible to provide the fluidized bed generator with a vibration-generating vibration motor at a suitable point. On the one hand, this measure reduces the probability that feature particles are deposited on the walls at all and, on the other hand, leads to feature particles that have already been deposited being able to detach from the walls.
  • vibrations such.
  • the vibrator used should be operated in a frequency range between 20 and 150 Hz. In principle, the vibrator can be attached to the outside of the fluidized bed generator. It then transmits the vibrations generated to the housing.
  • the coupling of an interval knocker to the base plate of the fluidized bed generator is also possible and has the additional advantage that a much larger part of the system can be made to vibrate.
  • the coupling of vibrators can also have a negative influence on the conveying system of the fine material, which can be expressed in an irregular delivery rate or a dependency of the delivery rate on the vibrator frequency, it is advantageous to use the vibrator in the upper part of the fluidized bed generator to couple outside.
  • the vibration Appropriate measures are then used to dampen or completely interrupt the conveyor unit.
  • the part of the fluidized bed generator set in vibration can be mechanically decoupled from the rest of the system, for example by means of an elastic intermediate piece.
  • a device can be attached which makes it possible to selectively control individual nozzles, so that on the one hand by the number of nozzles and on the other hand by the possibility of individually controlling each nozzle, i. H. to open or close, there is a possibility to apply the feature substance in the form of a coding on the paper web.
  • the process sequence is shown schematically in FIG. 4.
  • the feature substance passes from a storage container 30 into a homogenizer 4, which produces fine feature particles and mixes these with a gas in the desired, adjustable concentration.
  • the homogeneous mixture reaches one or more nozzles 7 via a distributor 5, it also being possible for a control unit to be present which can control the opening of the nozzles individually or in groups.
  • a measuring unit 35 which the actual concentration of the feature substance in the gas or another relevant for this Detected size, it is possible to generate a control signal, on the basis of which a control unit 36 influences the supply of the feature substance from the storage container or directly the changeable parameters of the homogenizer, so that deviations from the gas / feature concentration set can be compensated for.
  • the concentration can be measured at various points, such as B. in the homogenizer, at the nozzle outlet or in the distributor.
  • the homogeneous gas / feature mixture is then optionally fed via a distributor and under the influence of a nozzle control to one or more nozzles from which the feature particles emerge at high speed together with the gas stream, the exit velocity of the feature particles being below that of the gas.
  • the exit velocity of the feature particles can be determined by the choice of the nozzle geometry and the air throughput through the nozzles. This must be selected so that the speed of the particles when they hit the paper web is still high enough to ensure that the particles penetrate the paper web or that the particles adhere to the surface.
  • the web After the feature substance has been applied to the paper web, the web is subjected to the usual further treatment, such as, for. B. glue, drying or Gautschen subjected.
  • This post-treatment process increases the quality of the security.
  • those feature particles that only adhere weakly to the web are also removed from the web. After gluing, the feature substances are finally fixed in their position and as defined particles applied to their respective physical Properties can be checked.

Landscapes

  • Paper (AREA)
  • Inspection Of Paper Currency And Valuable Securities (AREA)
  • Facsimile Transmission Control (AREA)
  • Credit Cards Or The Like (AREA)
EP94120572A 1993-12-24 1994-12-23 Procédé et dispositif pour munir un papier fiduciaire d'éléments de sécurité Expired - Lifetime EP0659935B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4344552 1993-12-24
DE4344552A DE4344552A1 (de) 1993-12-24 1993-12-24 Verfahren und Vorrichtung zur Ausstattung von Wertpapieren mit Echtheitsmerkmalen

Publications (3)

Publication Number Publication Date
EP0659935A2 true EP0659935A2 (fr) 1995-06-28
EP0659935A3 EP0659935A3 (fr) 1996-04-17
EP0659935B1 EP0659935B1 (fr) 2000-05-17

Family

ID=6506278

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94120572A Expired - Lifetime EP0659935B1 (fr) 1993-12-24 1994-12-23 Procédé et dispositif pour munir un papier fiduciaire d'éléments de sécurité

Country Status (6)

Country Link
US (1) US5897746A (fr)
EP (1) EP0659935B1 (fr)
AT (1) ATE193071T1 (fr)
DE (2) DE4344552A1 (fr)
ES (1) ES2145089T3 (fr)
FI (1) FI946060A7 (fr)

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997003844A1 (fr) * 1995-07-18 1997-02-06 The Governor & Company Of The Bank Of England Production d'un document de securite presentant une caracteristique de securite metallique
WO1999013158A1 (fr) * 1997-09-09 1999-03-18 Runtech Systems Oy Procede et appareil d'application d'un agent de traitement a une bande de matiere
WO2001066360A1 (fr) * 2000-03-10 2001-09-13 De La Rue International Limited Dispositif de securite
EP1253241A2 (fr) 2001-04-27 2002-10-30 Giesecke & Devrient GmbH Procédé et dispositif pour insérer des éléments de sécurité dans une bande de papier
WO2003032243A1 (fr) * 2001-10-05 2003-04-17 Giesecke & Devrient Gmbh Document de valeur et marquage de securite au moyen d'une substance de marquage
WO2005035261A1 (fr) 2003-10-08 2005-04-21 Giesecke & Devrient Gmbh Document de valeur comprenant differentes substances caracteristiques
EP1673735A1 (fr) * 2003-10-08 2006-06-28 Giesecke & Devrient GmbH Document de valeur
EP1801290A3 (fr) * 2005-12-16 2008-07-02 Kronotec Ag Procédé et installation destinés à l'application de matières solides sous forme de particules sur un substrat
RU2394690C2 (ru) * 2004-10-26 2010-07-20 Гизеке Унд Девриент Гмбх Система для транспортировки смесей частиц и способ ее формирования
US7790056B2 (en) 2003-10-08 2010-09-07 Giesecke & Devrient Gmbh Coding system for value documents
CN101967766A (zh) * 2010-10-19 2011-02-09 山东晨鸣纸业集团股份有限公司 一种防伪纸生产设备
US7906201B2 (en) 2003-10-08 2011-03-15 Giesecke & Devrient Gmbh Value document
US7927511B2 (en) 2003-10-08 2011-04-19 Giesecke & Devient GmbH Coding system for value documents
RU2421562C1 (ru) * 2010-03-04 2011-06-20 Федеральное Государственное Унитарное Предприятие "Гознак" (Фгуп "Гознак") Устройство для изготовления бумаги с защитной нитью, способ изготовления бумаги и бумага, защищенная от подделки (варианты)
DE102013009222A1 (de) 2013-05-31 2014-12-04 Giesecke & Devrient Gmbh Sicherheitssubstrat
DE102013010681A1 (de) 2013-06-26 2014-12-31 Giesecke & Devrient Gmbh Sicherheitssubstrat
WO2019086080A1 (fr) * 2017-11-02 2019-05-09 Bundesdruckerei Gmbh Procédé de fabrication d'un signe de sécurité sur un papier de sécurité et utilisation associée

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DE19654607C2 (de) * 1996-12-20 1999-11-18 Bundesdruckerei Gmbh Verwendung mindestens einer gasförmigen Substanz, die in Wert- und Sicherheitserzeugnissen enthalten, diesen zugesetzt und/oder aus diesen freigesetzt wird
DE19836503B4 (de) * 1998-08-12 2007-09-20 WHD elektronische Prüftechnik GmbH Verfahren zur Herstellung eines Sicherheitsmerkmals
DE19826800A1 (de) * 1998-06-16 1999-12-23 Frank Puttkammer Herstellung von Spezialpapieren zum Ursprungsnachweis mit elektrisch leitenden Merkmalsstoffen und Prüfung derselben
DE19928060A1 (de) * 1999-06-15 2000-12-21 Whd Elektron Prueftech Gmbh Optisch variables Sicherheitsmerkmal und Verfahren zu seiner Herstellung
FI107817B (fi) * 1999-06-24 2001-10-15 Metsae Serla Oyj Menetelmä ja laitteisto kuvioidun paperin valmistamiseksi
FI116086B (fi) * 2000-06-08 2005-09-15 Avantone Oy Varmistusmerkitty paperi- tai kartonkituote ja varmistusmerkitty pakkaus
WO2003023141A1 (fr) * 2001-09-13 2003-03-20 Commonwealth Scientific And Industrial Research Organisation Procede de production de papier
ITVR20040104A1 (it) * 2004-06-16 2004-09-16 Cartiere Fedrigoni & C Spa Apparecchiatura per la produzione di carta di sicurezza e relativo procedimento
FR2895750B1 (fr) * 2005-12-30 2008-03-14 Norbert Moussu Carton de securite pour la realisation d'emballage
GB0605723D0 (en) 2006-03-23 2006-05-03 3M Innovative Properties Co Powder filling processes
FR2901286B1 (fr) * 2006-05-19 2011-08-19 Arjowiggins Procede de fabrication d'un materiau en feuille comprenant au moins une couche fibreuse et des elements de securite et/ou decoratifs
DE102008012221B4 (de) * 2008-03-03 2011-06-01 Kronotec Ag Verfahren zum Streichen eines noch feuchten lagenförmigen Substrats
EP2874928B1 (fr) 2012-07-19 2016-06-15 Adamis Pharmaceuticals Corporation Appareil d'acheminement de poudre

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US2711120A (en) * 1947-09-06 1955-06-21 Maclaurin James Donald Method and apparatus for watermarking paper
GB696673A (en) * 1949-09-29 1953-09-09 John Knaggs Manufacture of paper
CA935048A (en) * 1968-10-17 1973-10-09 L. Spiller Lester Modification of clay to improve electrostatic deposition
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US3997433A (en) * 1975-07-18 1976-12-14 Liu Benjamin Y H Method and apparatus for generating dry dust particles
DE2905441C3 (de) * 1979-02-13 1981-05-14 GAO Gesellschaft für Automation und Organisation mbH, 8000 München Verfahren zur Herstellung von Wertpapier mit gedruckten Echtheitskennzeichen in einer Papierschicht
DE3116257A1 (de) * 1980-05-30 1982-01-07 GAO Gesellschaft für Automation und Organisation mbH, 8000 München "wertpapier mit echtheitsmerkmalen"
DE3525138A1 (de) * 1985-07-13 1987-01-15 Helmut W Diedrichs Verfahren und vorrichtung zur herstellung von kunststoffpappe
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US4761204A (en) * 1987-01-30 1988-08-02 Rockwell International Corporation Chemical recovery process using break up steam control to prevent smelt explosions
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US4944960A (en) * 1988-09-23 1990-07-31 Sundholm Patrick J Method and apparatus for coating paper and the like
DE3843077A1 (de) * 1988-12-21 1990-06-28 Gao Ges Automation Org Sicherheitselement in form von faeden oder baender zur einbettung in sicherheitsdokumente sowie verfahren zur herstellung und pruefung derselben
US5279854A (en) * 1992-01-27 1994-01-18 Paragon Trade Brands, Inc. Method and apparatus for zoned application of particles in fibrous material
US5360516A (en) * 1992-11-12 1994-11-01 Philip Morris Incorporated Application of fluidized material to a substrate using intermittent charges of compressed air

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997003844A1 (fr) * 1995-07-18 1997-02-06 The Governor & Company Of The Bank Of England Production d'un document de securite presentant une caracteristique de securite metallique
WO1999013158A1 (fr) * 1997-09-09 1999-03-18 Runtech Systems Oy Procede et appareil d'application d'un agent de traitement a une bande de matiere
WO2001066360A1 (fr) * 2000-03-10 2001-09-13 De La Rue International Limited Dispositif de securite
GB2375322A (en) * 2000-03-10 2002-11-13 Rue De Int Ltd Security device
GB2375322B (en) * 2000-03-10 2004-03-03 Rue De Int Ltd Security device
EP1253241A2 (fr) 2001-04-27 2002-10-30 Giesecke & Devrient GmbH Procédé et dispositif pour insérer des éléments de sécurité dans une bande de papier
DE10120818A1 (de) * 2001-04-27 2002-10-31 Giesecke & Devrient Gmbh Verfahren und Vorrichtung zum Einbringen von Merkmalsstoffen in eine Papierbahn
WO2003032243A1 (fr) * 2001-10-05 2003-04-17 Giesecke & Devrient Gmbh Document de valeur et marquage de securite au moyen d'une substance de marquage
US7906201B2 (en) 2003-10-08 2011-03-15 Giesecke & Devrient Gmbh Value document
WO2005035261A1 (fr) 2003-10-08 2005-04-21 Giesecke & Devrient Gmbh Document de valeur comprenant differentes substances caracteristiques
US7927511B2 (en) 2003-10-08 2011-04-19 Giesecke & Devient GmbH Coding system for value documents
EP1673735A1 (fr) * 2003-10-08 2006-06-28 Giesecke & Devrient GmbH Document de valeur
US7790056B2 (en) 2003-10-08 2010-09-07 Giesecke & Devrient Gmbh Coding system for value documents
US7845570B2 (en) 2003-10-08 2010-12-07 Giesecke & Devrient Gmbh Value document
RU2394690C2 (ru) * 2004-10-26 2010-07-20 Гизеке Унд Девриент Гмбх Система для транспортировки смесей частиц и способ ее формирования
EP1801290A3 (fr) * 2005-12-16 2008-07-02 Kronotec Ag Procédé et installation destinés à l'application de matières solides sous forme de particules sur un substrat
US9023475B2 (en) 2005-12-16 2015-05-05 Kronotec Ag Method and system for applying particulate solids on a substrate
RU2421562C1 (ru) * 2010-03-04 2011-06-20 Федеральное Государственное Унитарное Предприятие "Гознак" (Фгуп "Гознак") Устройство для изготовления бумаги с защитной нитью, способ изготовления бумаги и бумага, защищенная от подделки (варианты)
CN101967766A (zh) * 2010-10-19 2011-02-09 山东晨鸣纸业集团股份有限公司 一种防伪纸生产设备
DE102013009222A1 (de) 2013-05-31 2014-12-04 Giesecke & Devrient Gmbh Sicherheitssubstrat
DE102013010681A1 (de) 2013-06-26 2014-12-31 Giesecke & Devrient Gmbh Sicherheitssubstrat
EP2818326A1 (fr) 2013-06-26 2014-12-31 Giesecke & Devrient GmbH Substrat de sécurité
WO2019086080A1 (fr) * 2017-11-02 2019-05-09 Bundesdruckerei Gmbh Procédé de fabrication d'un signe de sécurité sur un papier de sécurité et utilisation associée

Also Published As

Publication number Publication date
EP0659935B1 (fr) 2000-05-17
DE59409358D1 (de) 2000-06-21
ATE193071T1 (de) 2000-06-15
DE4344552A1 (de) 1995-06-29
FI946060L (fi) 1995-06-25
US5897746A (en) 1999-04-27
FI946060A7 (fi) 1995-06-25
FI946060A0 (fi) 1994-12-23
ES2145089T3 (es) 2000-07-01
EP0659935A3 (fr) 1996-04-17

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