WO2005052249A1 - Papier de securite et procede de fabrication associe - Google Patents

Papier de securite et procede de fabrication associe Download PDF

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Publication number
WO2005052249A1
WO2005052249A1 PCT/CH2004/000713 CH2004000713W WO2005052249A1 WO 2005052249 A1 WO2005052249 A1 WO 2005052249A1 CH 2004000713 W CH2004000713 W CH 2004000713W WO 2005052249 A1 WO2005052249 A1 WO 2005052249A1
Authority
WO
WIPO (PCT)
Prior art keywords
security
paper
web
substrate web
band
Prior art date
Application number
PCT/CH2004/000713
Other languages
German (de)
English (en)
Inventor
Jakob Grob
Original Assignee
Landqart
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 Landqart filed Critical Landqart
Publication of WO2005052249A1 publication Critical patent/WO2005052249A1/fr

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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
    • D21H21/42—Ribbons or strips
    • 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

Definitions

  • the present invention relates to the field of the production of paper for security applications such as banknotes, ID cards, documents etc.
  • the present invention relates to a method for producing security paper with at least one embedded security tape, and proves to be particularly advantageous when wide security tapes to be embedded.
  • security tapes or security threads in documents to increase security against counterfeiting has long been state of the art.
  • security tapes of this type are introduced into the paper web, for example in order to make a dark thread appear in transmitted light, which cannot be reproduced in a simple copying process.
  • security threads are used, for example, which have a metallized or other type of opaque coating based on a transparent substrate.
  • EP-A-319157 describes a security thread which has a metallized coating with cutouts which correspond to characters.
  • Such security threads can be introduced in different ways. On the one hand, it is possible to have the security threads completely disappear into the paper structure, so that under supervision they are essentially not is recognizable. Such storage methods are described for example in EP-A-0279880. In this context, it is known that, in particular when security threads of a width greater than 1.5 mm are to be introduced, problems with sheet formation can occur in the area of the security threads. Correspondingly, for example, GB-A-1486079 describes a method for introducing a security thread, in which two paper webs are produced independently, and these two fresh paper webs are then brought together in the wet area of the machine and pressed together, with the security thread between these two immediately before pressing Paper webs is guided. A similar process is described in EP-A-229645.
  • the security thread can also be embedded in the paper web in such a way that it comes to the surface at least in regions.
  • a method of this type is described, for example, in EP-A-0059056, in which a hump is provided with bumps on which the security thread comes to rest, and in the area in which the security thread then comes to the surface on the side of the paper web facing the wire.
  • EP-A-0860298 describes a method in which two paper webs are likewise produced separately, with one thread in at least one of these two paper webs in a method according to the EP-A-0059056 is embedded such that it is at least partially exposed on the side facing the sieve.
  • the two fresh and still wet paper webs which extend over the entire width of the paper machine, are then brought together in the wet area of the paper machine, the back of the paper web provided with a security thread being covered by the second paper web, so that any defects that may occur on this back be covered.
  • the invention is therefore based on the object of an improved method for To provide a security paper with an embedded security tape, and to provide such security paper with a security tape.
  • a paper web is formed during the production of the security paper, the front side of the (forming) paper web rests on a screen, and a security band is embedded in the paper during sheet formation.
  • This substrate web can have the same width as the paper web, but is preferably somewhat wider than strips designed as the security band.
  • the present invention accordingly relates to a method according to claim 1, a use according to claim 20 and a security paper according to claim 21.
  • the essence of the invention thus consists in the fact that, surprisingly, without a second continuously wet, in particular, for example just just formed paper web, it is possible to achieve a very good coverage of the security band and to establish an intimate connection between the paper web and a substrate web supplied dry or moistened ,
  • the methods according to the prior art are characterized in that webs brought together in this way are brought into contact with one another immediately after their production on a sieve and thus in the wet state. This is because the person skilled in the art assumes that an intimate and integral connection between the two webs is only possible in a rubber process if both webs are still moist.
  • the proposed method according to the invention allows the implementation of a method using two webs with embedding of security bands without, for example, two circular sieve systems having to be present in parallel in the wet area of the paper machine. This saves costs and the process can be run at high speed without any technical disadvantages.
  • a first preferred embodiment of the proposed method is characterized in that the substrate web has a web width which is substantially smaller than the width of the paper web and which is greater than the width of the security band, the substrate web being fed in such a way that the substrate web is laterally in the protrudes symmetrically beyond the security band.
  • Such a strip can be easily integrated into an existing paper machine via one (or more if there are several threads) small roll, it only being necessary to ensure that this substrate strip is correctly positioned with respect to the security band.
  • the substrate web In order to adequately cover the security strip or the security band on the rear side, it proves to be advantageous according to a further preferred embodiment to have the substrate web have a web width which is at least 4 mm larger than the width of the security band.
  • the substrate web should be dimensioned in such a way that it overhangs the security band on both sides by approximately 2 mm. This ensures that a sufficient cohesive connection between the paper web and the security tape is guaranteed in this area projecting beyond the security tape. This is because, as is always proposed in the prior art, it is not necessary to effectively provide a second web of paper, for example, over the entire width of the paper web in order to achieve the to be able to solve wide streak problems. As proposed here, it is sufficient to feed a strip of substrate that is somewhat wider than the security band.
  • the feeding of the security tape or the substrate web can be designed differently. According to a first preferred embodiment of the method, it is possible, for example, both the security band and the substrate web in the
  • the procedure can either be such that the security band and the substrate web are guided onto the screen in contact with one another. This can be realized, for example, by either feeding the security tape and substrate web together from a single roll, with the relative positioning of
  • Safety tape and substrate web is made. This pair of two layers (security tape and substrate web), which can possibly even be connected to one another, is then fed via at least one feed roller in the immersion area of the screen.
  • the safety band can either be brought into contact with the sieve immediately before the sieve is immersed in the pulp, or (shortly) after the sieve is immersed.
  • the substrate web on the other hand, is only fed in when the screen and the safety band are at least partially immersed in the pulp. In this way it can be ensured that a first sheet formation has already started around the security band when the substrate web is, as it were, led from the back to the security band and to the screen.
  • An alternative (or additional) approach of the substrate web can be achieved by passing at least one substrate web through a take-off screen between the take-off screen and the paper web immediately after the paper web has been taken over.
  • the security band and or the substrate web in such a way that they at least on the side facing one another by means of adhesion mediation feature.
  • the adhesion promoter can also be provided on both sides and can be provided in the form of a coating or an impregnation.
  • the substrate web in particular preferably does not have adhesion promoters.
  • the security tape can be embedded in the paper web in different ways. On the one hand, it is possible to completely embed the security tape in the paper web, so that the security tape subsequently does not appear on the surface of the paper web at any point, and can therefore only be seen through. Alternatively, it is possible to embed the security band in the paper web in such a way that the security band is at least partially freely accessible on the front side facing the screen. Methods such as those described in EP 059 056 or EP 0 609 252 can be used for this purpose. With regard to these two methods, the subject matter of these two patent documents is explicitly included in the disclosure content of the present document. In this way, security threads can then also be recognized in incident light in those areas that are freely accessible.
  • security features are present on the security bands, which can only be detected if they are not covered by a layer of paper material.
  • security features include holograms, dichroic layers, layers with optical tilting effects, fluorescent and in particular polarizing fluorescent (absorption and / or emission) elements.
  • the substrate web can, in particular, preferably be registered in such a way that it is fed to areas of the security band that are at least partially freely accessible on the front side, so that the security band remains accessible on both sides at least in some areas.
  • an arrangement of this type uses a security tape that is transparent at least in the area of these windows, transparent windows are created in the security paper, which can either serve as simple security features per se, or which if necessary, can also be combined with other security features in these transparent areas (fluorescence, phosphorescence, holograms, etc.).
  • the security band is a strip with a width in the range from 2.5 mm to 30 mm, preferably in the range from 3 mm to 20 mm.
  • the proposed method using a substrate tape proves to be advantageous in particular in the case of such wide security tapes, where problems typically arise and defects can occur during the sheet formation process, in particular when the process is moving quickly on the back of the security tape.
  • the security band is a transparent backing, which preferably has a metallic or non-metallic opaque coating, at least in some areas, optionally with negative or positive characters and optionally in combination with fluorescent and / or polarizing or linearly polarized fluorescent layers.
  • a metallic or non-metallic opaque coating at least in some areas, optionally with negative or positive characters and optionally in combination with fluorescent and / or polarizing or linearly polarized fluorescent layers.
  • Such or similar strips are described for example in EP-A-319157 or in EP-A-330733. With regard to the strips, the disclosure content of these two documents is to be explicitly included. It is also possible to provide holograms, color change structures (tilting effects), magnetic structures (e.g. coding) etc. on the security band.
  • a further preferred embodiment of the invention is characterized in that the paper web is produced on a circular screen which is at least partially guided in a pulp.
  • the substrate web can consist of a wide variety of materials, as long as they have sufficient porosity or provide a correspondingly suitable surface (possibility of forming hydrogen bonds to the cellulose of the paper web), so that a good connection between the substrate web and the paper web can be created.
  • the substrate web can thus be, for example, a permeable, opaque or transparent support based on cellulose, cotton and / or synthetic materials. It is particularly advantageous when both paper web and substrate web have essentially the same structure and composition. Then, after the rubber process, a security paper is created, in which such an intimate and integral connection between the substrate web and paper web is created that these two components can hardly be distinguished from one another, if at all.
  • a substrate web in particular if it additionally has security features such as, for example, mottled fibers, tag gants, up-converters, pigments or dyes acting as security elements, and / or planchettes.
  • the substrate web can also be completely or partially printed on one or both sides, this over the entire surface or with characters or symbols, for example, and printing can be done with conventional printing ink or with inks with absorption and / or emission in the UV or IR range, for example fluorescent Printing ink with absorption in the UV range and emission in the visible range.
  • these security elements can be arranged in a very efficient manner in the surface area of the security paper and on one side, and if the substrate web is designed as a simple strip underlying the security tape, it is also possible to arrange such security features only in a localized area. For example, a streak mottling can be generated selectively in the area of the security band.
  • the substrate web can also be printed at least in some areas (for example personalization or the value of a banknote), it can be coated, or it can be colored in bulk.
  • the substrate web is preferably at least one strip of paper or non-woven fabric fed from a roll, the basis weight of which is in the range of 5-50% or 10-50%, preferably in the range of 10-30% or 20-30% of the basis weight of the finished security paper.
  • a basis weight in the range of 15% of the basis weight of the finished security paper is ideal for many applications.
  • the paper can contain cellulose, cotton, but also synthetic components, fillers, dyes, binders, adhesion promoters, etc. In other words, not just the pulp, but the substrate web is also based at least in part on cotton.
  • the finished security paper preferably has a weight per unit area in the range of 50-200 g / m 2 , preferably in the range of 70-150 g / m 2 .
  • a further preferred embodiment is characterized in that the paper web, the security tape and the substrate web are gassed through a take-off screen after the takeover and are subsequently dried. Gautschen can easily be done by guiding the individual webs around a roll.
  • the present invention relates to a use of the method as proposed above for the production of security paper for a banknote, check, security, document, identification card etc.
  • the present invention relates to a security paper with a security tape embedded in the paper during sheet formation and with at least one porous substrate web made of woven or non-woven material, which has at least one web width corresponding to the width of the security tape, and on at least one side of the security tape and on the back arranged covering and is connected to the paper web in the wet area of the paper machine.
  • the security tape has a width in the range from 2.5 mm to 30 mm
  • the substrate web has a basis weight in the range from 5 to 50% or 10-50%, preferably in the range from 10 to 30% or 20 to 30% of the basis weight of the security paper and the substrate web has a width which is less than the width of the security paper.
  • Such a security paper is advantageously characterized in that the substrate web has a web width which is preferably at least 4 mm larger than the width of the security band, the substrate web preferably protruding laterally substantially symmetrically over the security band, and furthermore preferably in the substrate web is a paper web.
  • the security paper and / or the substrate web and / or the security tape can have security elements with linearly polarized emission and or absorption. Such security paper can accordingly be produced by a method as described above.
  • Figure 1 is a schematic representation of the wet area of a paper machine with circular screen and with a possible process structure for the production of security paper with an embedded security thread according to the prior art.
  • 2 a) a schematic representation of the wet area of a paper machine with circular screen with a process structure for the additional introduction of a substrate web, and b) a schematic representation of the wet area of a paper machine with circular screen with a process structure for the additional introduction of a substrate web, with a complete embedding of a security thread is made;
  • FIG. 3 shows a schematic representation of the wet area of a paper machine with a circular screen with a process structure for the additional introduction of a substrate web together with the security thread;
  • FIG. 4 shows a schematic representation of the wet area of a paper machine with a circular screen with a process setup for the additional introduction of a substrate web shortly before the take-over screen;
  • FIG. 5 representations of a security paper with an embedded security thread.
  • Fig. 1 shows a schematic representation of a paper machine 1 with a circular screen 2, which is at least partially immersed in the pulp 3.
  • the liquid is sucked inwards in the circular screen 2, so that the material gradually compresses on the surface 5 of the circular screen 2 and a paper web 4 is formed.
  • the paper web 4 which forms becomes available after the circular screen 2 has appeared, and in the present construction is removed by a take-off screen 2 or a take-off felt 2 and discharged in the direction 7 via a roller 6.
  • the finished paper 8 or the finished security paper web 8 is then dried and removed, among other things, via suction units 13.
  • Circular screening systems of this type are used in particular in the field of paper production for use as security paper, since they allow complex watermarks to be introduced.
  • a security band 9 is additionally introduced into the security paper 8.
  • the security thread is fed from a thread feed unit 10 from a roll, deflected at a further roll 11 and then guided onto the wire 2.
  • the screen 2 can be provided with bumps (18) in the area of the thread 9 (cf. FIG. 2a), so that 4 or 8 windows are subsequently formed in the area of these bumps on the side of the paper web facing the screen, i. H. that the security thread is then exposed on one side of the paper in the area of the cusps.
  • Such a method is described in detail in EP-A-059056, for example, and the associated disclosure content of this document is to be explicitly included in connection with the introduction of a security thread.
  • 2 a) shows a structure of an exemplary embodiment with which the proposed method can be implemented.
  • a substrate web 14 made of paper is also fed from a roll in the immersion area of the screen 2. It is a strip of paper of essentially the same composition as is obtained from pulp 3. Alternatively, it is possible to supply a fleece instead of the paper, this fleece having a higher porosity than the paper.
  • the strip has a width which is somewhat greater than the width of the security band, a width preferably being selected which projects at least 2 mm on each side of the security band 9.
  • the substrate web 14 is normally in a dry state, but it is also possible, in order to ensure a more intimate connection between the substrate web 14 and the resulting paper web 4, or in order, if necessary, to prevent the formation of bubbles due to trapped air, to challenge the substrate web 14 before it is supplied. This can be done, for example, by guiding the web 14 over rollers through a bath in which this moistening takes place.
  • the substrate web 14 is centered behind the security band 9. First, the security band 9 is guided onto the screen, which can either be done, as shown in FIG. 2, before the screen 2 is immersed in the pulp 3, or shortly thereafter.
  • FIG. 2a schematically shows the possibility of bumps 18 on the screen surface to form a so-called Windows embedding of the security thread or band 9 (cf. EP-A-059056).
  • the substrate web 14 is fed onto the back of the security band 9, the substrate web 14 being deflected via a roller 15. Otherwise, the process is identical to that shown in FIG. 2.
  • the depositing of the security tape 9 by the substrate web 14 prevents defects from appearing on the back of the security tape 9 or that there is insufficient adhesion between the paper web and the security tape in the edge region of the security tape, even when the process is carried out quickly.
  • a higher level of the level of the pulp 3 is also indicated by dots.
  • the substrate web 14 is only brought up to the screen 2 when that
  • Security tape 9 already rests on the screen and at least one already partial sheet formation around the screen 2 has taken place. Accordingly, the thread 9 is already partially embedded when the substrate web 14 is brought in from the side facing away from the screen 2.
  • FIG. 3 shows an alternative feeding of the substrate web 14.
  • the substrate web 14 is guided over the same roller 11 over which the security band 9 is also guided.
  • the two webs 9 and 14, which are already aligned relative to one another and in contact with one another, are then guided together onto the screen 2.
  • This method allows a secure relative positioning of the substrate web 14 and the security band 9.
  • a modification of this method can be implemented in that the security band 9 and substrate web 14 are already made available rolled up on a roll, and then only this role, for example in the thread feed unit 10 unrolled and deflected over the roller 11 must be guided to the screen 2.
  • FIG. 4 shows a method in which the substrate web 14 is only fed to the paper web 4 after the sheet formation.
  • the substrate web 14 is guided between the paper web 4 and the take-off felt 12 when the paper web 4 is taken over by the take-off felt 12.
  • the substrate web 14 is fed as a strip, which protrudes somewhat beyond the width of the security band 9 and is aligned relative to the latter, i. H. is symmetrically centered.
  • Fig. 5 shows two sections through security papers 8, as proposed by the
  • the security paper acc. 5a has a security strip 9, which is partially exposed in the areas 16 on the upper side of the paper web that was formerly facing the screen 2 Substrate web 14 deposited. As can be seen from this figure, the substrate web 14 is completely embedded in the mass of the paper, and with a suitable setting of the process it is possible to establish such an intimate connection between the security band 14 and the surrounding paper that even with detailed analysis, nothing more it can easily be determined whether such a substrate web 14 has been used at all.
  • the substrate web 14 on the side facing away from the security band 9 is either still covered by a thin layer or not. If security features are provided in the substrate web 14, which should appear on the surface in order to make them recognizable, it should of course be avoided that this covering of the substrate web 14 is present on the rear side.
  • FIG. 5b shows an exemplary embodiment in which the substrate web 14 in turn has cutouts 17 which are registered with respect to the exposed areas 16. For this purpose, care is taken when feeding the substrate web 14 that these recesses 17 are adjusted to the bumps arranged on the screen 2.
  • a security strip which is transparent at least in the area of the cutouts 16 and 17, respectively, and which is possibly somewhat wider than the cutouts 16 and / or 17, 8 windows result in the security paper.
  • These windows serve as very effective security features that can be easily recognized by the end user. Additional, hidden or obvious security features can be installed in these windows, such as holograms, fluorescent coatings or characters, and in particular polarized fluorescent security features.
  • suction unit 14 substrate web, reinforcement fleece

Abstract

La présente invention concerne un procédé pour fabriquer un papier de sécurité présentant au moins une bande de sécurité incorporée (9). L'objectif de cette invention est de permettre une incorporation de cette bande de sécurité (9) particulièrement fiable et sans erreur, en particulier dans le cas de larges bandes de sécurité (9), tout en permettant la formation de fenêtres. A cet effet, une bande de papier (4) est formée, le recto de cette bande de papier (4) s'appuyant contre une toile (2, 5) et une bande de sécurité (9) étant incorporée dans le papier pendant la transformation en feuille, et au moins une bande de substrat poreux (14) en matière tissée ou non tissée, séchée ou réhumidifiée, présentant au moins une largeur de bande correspondant à la largeur de la bande de sécurité (9), est appliquée sur le côté de cette bande de sécurité (9) qui est opposé à la toile (2, 5), de façon à recouvrir la face arrière de cette bande de sécurité, puis liée à la bande de papier (4) dans la section humide de la machine à papier.
PCT/CH2004/000713 2003-11-28 2004-11-29 Papier de securite et procede de fabrication associe WO2005052249A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH02029/03A CH699167B1 (de) 2003-11-28 2003-11-28 Sicherheitspapier und Verfahren zu dessen Herstellung.
CH2029/03 2003-11-28

Publications (1)

Publication Number Publication Date
WO2005052249A1 true WO2005052249A1 (fr) 2005-06-09

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WO (1) WO2005052249A1 (fr)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2898365A1 (fr) * 2006-03-13 2007-09-14 Banque De France Feuille de matiere fibreuse comportant une fenetre transparente et procede de realisation
EP1887134A2 (fr) * 2006-08-07 2008-02-13 Giesecke & Devrient GmbH Papier de protection doté d'une zone transparente
FR2915210A1 (fr) * 2007-04-19 2008-10-24 Banque De France Feuille de matiere fibreuse comportant une fenetre annulaire et procede de realisation.
FR2918680A1 (fr) * 2007-07-11 2009-01-16 Arjowiggins Licensing Soc Par Procede de fabrication d'un materiau en feuille.
FR2918679A1 (fr) * 2007-07-11 2009-01-16 Arjowiggins Licensing Soc Par Procede de fabrication d'un materiau en feuille.
WO2011051905A1 (fr) 2009-10-30 2011-05-05 Arjowiggins Security Elément de sécurité comportant un adhésif et un substrat portant une structure optique, et procédé associé
US8083894B2 (en) * 2005-07-12 2011-12-27 Giesecke & Devrient Gmbh Method for manufacturing a security paper
WO2017133832A1 (fr) * 2016-02-02 2017-08-10 Giesecke & Devrient Gmbh Procédé et dispositif pour fabriquer un papier de sécurité pourvu de deux éléments de sécurité fenêtrés
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

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2311303A (en) * 1996-03-18 1997-09-24 Portals Ltd Reinforced paper incorporating a security element
EP0860298A2 (fr) * 1993-05-01 1998-08-26 Giesecke & Devrient GmbH Papier de sécurité

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0860298A2 (fr) * 1993-05-01 1998-08-26 Giesecke & Devrient GmbH Papier de sécurité
GB2311303A (en) * 1996-03-18 1997-09-24 Portals Ltd Reinforced paper incorporating a security element

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8083894B2 (en) * 2005-07-12 2011-12-27 Giesecke & Devrient Gmbh Method for manufacturing a security paper
WO2007104855A2 (fr) * 2006-03-13 2007-09-20 Banque De France Feuille de matiere fibreuse comportant une fenetre et procede de realisation
WO2007104855A3 (fr) * 2006-03-13 2007-11-01 Banque De France Feuille de matiere fibreuse comportant une fenetre et procede de realisation
FR2898365A1 (fr) * 2006-03-13 2007-09-14 Banque De France Feuille de matiere fibreuse comportant une fenetre transparente et procede de realisation
EP1887134A3 (fr) * 2006-08-07 2011-09-28 Giesecke & Devrient GmbH Papier de protection doté d'une zone transparente
EP1887134A2 (fr) * 2006-08-07 2008-02-13 Giesecke & Devrient GmbH Papier de protection doté d'une zone transparente
FR2915210A1 (fr) * 2007-04-19 2008-10-24 Banque De France Feuille de matiere fibreuse comportant une fenetre annulaire et procede de realisation.
EP1985753A1 (fr) * 2007-04-19 2008-10-29 Banque De France Feuille de matière fibreuse comportant une fenêtre annulaire et procédé de réalisation
FR2918679A1 (fr) * 2007-07-11 2009-01-16 Arjowiggins Licensing Soc Par Procede de fabrication d'un materiau en feuille.
WO2009022071A2 (fr) * 2007-07-11 2009-02-19 Arjowiggins Licensing Procédé de fabrication d'un matériau en feuille
WO2009022071A3 (fr) * 2007-07-11 2009-04-09 Arjowiggins Licensing Sas Procédé de fabrication d'un matériau en feuille
WO2009022072A3 (fr) * 2007-07-11 2009-04-09 Arjowiggins Licensing Sas Procédé de fabrication d'un matériau en feuille
FR2918680A1 (fr) * 2007-07-11 2009-01-16 Arjowiggins Licensing Soc Par Procede de fabrication d'un materiau en feuille.
US8372241B2 (en) 2007-07-11 2013-02-12 Arjowiggins Security Process for manufacturing a sheet material
WO2011051905A1 (fr) 2009-10-30 2011-05-05 Arjowiggins Security Elément de sécurité comportant un adhésif et un substrat portant une structure optique, et procédé associé
WO2017133832A1 (fr) * 2016-02-02 2017-08-10 Giesecke & Devrient Gmbh Procédé et dispositif pour fabriquer un papier de sécurité pourvu de deux éléments de sécurité fenêtrés
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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Publication number Publication date
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