EP1252389B2 - Sicherheitspapier - Google Patents

Sicherheitspapier Download PDF

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Publication number
EP1252389B2
EP1252389B2 EP01904025A EP01904025A EP1252389B2 EP 1252389 B2 EP1252389 B2 EP 1252389B2 EP 01904025 A EP01904025 A EP 01904025A EP 01904025 A EP01904025 A EP 01904025A EP 1252389 B2 EP1252389 B2 EP 1252389B2
Authority
EP
European Patent Office
Prior art keywords
paper
cells
fact
masks
security zone
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.)
Expired - Lifetime
Application number
EP01904025A
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English (en)
French (fr)
Other versions
EP1252389B1 (de
EP1252389A1 (de
Inventor
Stéphane Mallol
Yvan Thierry
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.)
ArjoWiggins Security SAS
Original Assignee
ArjoWiggins Security SAS
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
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Application filed by ArjoWiggins Security SAS filed Critical ArjoWiggins Security SAS
Publication of EP1252389A1 publication Critical patent/EP1252389A1/de
Publication of EP1252389B1 publication Critical patent/EP1252389B1/de
Application granted granted Critical
Publication of EP1252389B2 publication Critical patent/EP1252389B2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • 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 present invention relates to a security paper comprising a security zone, a method for producing such a paper and a device for implementing this method.
  • the weakened zone is designed in such a way that any mechanical aggression of its surface causes irreversible damage, such as the drilling of the paper or a linting of its surface, preventing any modification of the information inscribed on said weakened zone.
  • One of the known methods for producing a weakened zone is to perform abrasion or cutting halfway through the area, after the manufacture of the paper sheet, as proposed in the document EP-A-0 543 528 .
  • Another known method is to simultaneously form two layers of paper by the bi-jet technique, one of the layers being provided with a window, the other not.
  • the two assembled layers provide a sheet of paper provided with a window of smaller thickness and greater fragility.
  • the sheet made in two-jet has the disadvantage that its weakened zone must be fragile enough to fulfill its function of safety zone, but must nevertheless be able to withstand the manipulations involved in the industrial production of the sheet.
  • the paper manufacturer must therefore find the best compromise between these two requirements.
  • the weakened area can not extend over a large area, at the risk of tearing at the first opportunity, when used as security paper.
  • the present invention aims to provide a security paper comprising a safety zone, which is a simple and economical embodiment.
  • the present invention thus relates to a security paper as defined in claim 1.
  • the security zone is admittedly slightly weakened relative to the rest of the paper, but not so much as to compromise the strength of the paper.
  • the parts of the paper located between the cells constitute a reinforcement for the safety zone, so that even if it extends over a large area, this reinforcement provides it with sufficient strength.
  • the safety zone can thus occupy a large part of the sheet.
  • the role of the cells is not only to weaken the paper, but also to form traps for the ink materializing information carried on the security zone.
  • the ink becomes difficult to reach, either by scratching or scrubbing.
  • the invention also addresses the already-mentioned problem of falsification by cutting the safety zone into the thickness of the paper.
  • the safety zone always has, at the bottom of its cells, the ink deposited for the registration of the security information.
  • the cells can be distributed according to a network.
  • the safety zone may comprise between 1 and 20, preferably between 2 and 10, cells per cm 2 .
  • the area occupied by the cells and any connecting portions corresponds to at least 50% of the total area of the safety zone.
  • the depth of the cells is 50 to 90%, and preferably 70 to 80%, of the maximum thickness of the paper around the cells, in the safety zone.
  • All the cells can have substantially the same depth.
  • the paper obtained by virtue of the invention has the advantage of being free of protruding parts, such as embossings or embossings, which is particularly advantageous for the printing operations, both in the safety zone and on the surface. rest of its surface.
  • each cell locally confers on the paper a surface mass of fibrous composition lower than that of the paper around the cell.
  • Each cell can thus be more transparent than its immediate vicinity, in the absence of ink.
  • the cells on the surface of the safety zone as raster points of a raster image, for example by varying the shape, number and / or size and / or distribution of the cells in different parts of the safety zone, one can obtain a macroscopic effect that reconstructs a multitone watermark.
  • the cells and any binding portions are on the paper, observed in light transmitted before printing, clear areas, the latter being delimited by dark areas.
  • the light areas and the dark areas advantageously define a halftone image.
  • this raster image has raster points formed by lines.
  • the light areas are not disjoint, which allows for the watermark by means of a perforated monobloc grid, as will be explained below.
  • the sheets of paper can be processed without the need to provide shims to compensate for local oversize.
  • the paper according to the invention is particularly simple to manufacture, thanks to the method, which is also the subject of the present invention, which is characterized in that it comprises the step of providing a fabric used during the wet phase of forming the paper of a set of masks able to create in a zone of the paper located at the right of the masks at the time of formation of the paper, a set of cells formed in the thickness of the paper.
  • the above set of masks makes it possible to obtain a recessed relief on an area of the paper constituting the safety zone.
  • This relief is formed in the paper because the masks that are present on the canvas limit the accumulation of cellulosic, synthetic or mineral fibers of the aqueous suspension used for the manufacture of paper.
  • the corresponding parts of the paper constitute the cells and the rest of the paper, especially the regions formed between the masks of the network, has a thickness substantially equal to that of a paper without cells.
  • the subject fabric constitutes the paper forming fabric.
  • the fabric in question serves to lift the formed sheet.
  • the fabric in question is attached to a wet press that works the sheet still wet after lifting.
  • the fabric in question is attached to a filigree roller.
  • the subject fabric is attached to a graining element located outside the forming zone of the sheet.
  • the web may, for example, be on a round-shaped paper machine or on a flat-table paper machine.
  • the set of masks may be on the inner face of the fabric, in its thickness or on the outer face of the fabric, several canvases may be associated.
  • the network of masks is on one side of the fabric rather than in its thickness.
  • the set of masks is constituted by a monobloc grid, resulting from a thin plate, in which have been made openings, for example hexagonal and arranged in a regular network.
  • the parts of the grid remaining between the holes constitute the masks of the network.
  • the density of the holes is determined by those skilled in the art according to the basis weight of the paper and its composition. It will be sought to establish an advantageous compromise between the desire to obtain a maximum area of cells and the need to maintain the framework of the safety zone, thanks to the reinforcement formed by the parts of the paper surrounding the cells.
  • this solution improves the protection of the ink housed at the bottom of the cells, because the narrowness of the latter makes the ink difficult to access.
  • the set of masks is constituted by a juxtaposition of small parts fixed individually to the fabric.
  • the masks are at least partly shaped in a pattern particular for customizing the sheet of paper, creating in the thickness thereof the cells taking the pattern masks.
  • each pattern may form a letter or set of letters possibly characteristic of the issuer of the security document established from the sheet according to the invention.
  • the set of masks constituted or not by a grid forms in itself a particular pattern, thanks to an arrangement of its masks or to a local modification of the shape or size of the masks in some parts of the network.
  • the set of masks can be obtained from a raster image, and restore on the paper shades of tones by a juxtaposition of light and dark areas.
  • Such a halftone image advantageously comprises raster points in the form of a line, these lines having a variable width along their length, possibly zero in places, the lines being furthermore arranged in such a way that there is no portion of totally isolated line; a grid can easily be made by photogravure from such an image, the openings of this grid corresponding to the dark areas of the watermark.
  • a security document 1 such as a banknote, made from cellulosic fibers and having a security zone 2 shown schematically by a broken line rectangle.
  • the security zone 2 may be of any size and extends over only a portion of the document.
  • the safety zone 2 comprises a network of cells 3.
  • Each cell 3 is hollowed out in the thickness of the document 1, as can be seen in FIG. figure 2 .
  • the thickness of the paper in the regions 4 surrounding the cells 3 is substantially constant and equal to the thickness of the paper outside the security zone 2.
  • the density of the paper, at the level of the cells 3, is less than the density of the paper at the regions 4 above.
  • the cells 3 appear in the clear and the regions 4 appear darker than the cells 3.
  • a network 5 of elementary masks 6, such as that represented on FIG. figure 3 is formed.
  • the elementary masks 6 are interconnected by bridges 7 of small width.
  • the network 5 is made in one-piece form, for example by cutting or etching a thin plate of metal or plastic.
  • the network 5 is used in association with a fabric 8, which is schematically represented on the figure 6 , this fabric 8 being, for example, a web known per se, used conventionally during the wet phase of forming the paper from an aqueous suspension of cellulosic fibers.
  • the network 5 is preferably constituted, as is the case of the example described, by a metal grid fixed on the outer face of the fabric 8, that is to say the face which is in contact with the suspension aqueous cellulosic fiber.
  • each elementary mask 6 limits the accumulation of cellulosic fibers suspended at the level of the fabric and creates a cell in the paper zone located in line with this elementary mask.
  • the bridges 7 create recessed connection portions on the sheet, which are not shown on the figure 1 for the sake of clarity of the drawing.
  • the security zone of the sheet obtained can be printed by known printing techniques, in particular laser with all types of inks, visible in daylight or fluorescent.
  • the image obtained is difficult to erase because the ink remains trapped in the bottom of the cells.
  • the network 5 of masks is replaced, in an embodiment variant not illustrated, by a grid having openings, this grid being obtained from a halftone image.

Claims (19)

  1. Sicherheitspapier (1), umfassend eine Sicherheitszone (2), die einen Schutz gegen mechanische Fälschungen gewährleistet, wobei diese Sicherheitszone sich nur über einen Teil des Sicherheitspapiers erstreckt, dadurch gekennzeichnet, dass diese Sicherheitszone (2) eine Anzahl von Zellen (3) umfasst, die in dem Papier ausgespart sind und ggf. durch ausgesparte Verbindungsabschnitten verbunden sind, wobei die Dicke des Papiers in seiner ganzen zu den Zellen (3) und zu den Verbindungsabschnitten komplementären Fläche in der Sicherheitszone (2) im wesentlichen einheitlich ist, wobei die Tiefe der Zellen 50 bis 90% der Höchstdicke des Papiers um die Zellen herum in der Sicherheitszone beträgt.
  2. Papier nach dem vorhergehenden Anspruch, dadurch gekennzeichnet, dass die Sicherheitszone zwischen 1 und 20, vorzugsweise 2 und 10 Zellen pro cm2 aufweist.
  3. Papier nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die von den Zellen (3) und den ggf. vorgesehenen Verbindungsabschnitten eingenommene Fläche mindestens 50% der Gesamtfläche der Sicherheitszone (2) entspricht.
  4. Papier nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Tiefe der zellen 70% bis 80% der Höchstdicke des Papiers um die Zellen herum in der Sicherheitszone beträgt.
  5. Papier nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Zellen (3) im wesentlichen die gleiche Tiefe haben.
  6. Papier nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Zellen gemäß einem regelmäßigen Netz verteilt sind.
  7. Papier nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass die Zellen und die ggf. vorgesehenen Verbindungsabschnitte auf dem Papier, vor dem Bedrucken im Licht gesehen, helle Zonen bilden, wobei diese durch dunkle Zonen begrenz sind.
  8. Papier nach dem vorhergehenden Anspruch, dadurch gekennzeichnet, dass die hellen Zonen und die dunklen Zonen ein gerastertes Bild bilden.
  9. Papier nach dem vorhergehenden Anspruch, dadurch gekennzeichnet, dass das gerasterte Bild von Linien gebildete Rasterpunkte aufweist.
  10. Papier nach einem der drei vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die hellen Zonen nicht getrennt sind.
  11. Papier nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Sicherheitszone so bedruckt ist, daß die Druckfarbe auf den Boden von Zellen aufgetragen ist.
  12. Papier nach dem vorhergehenden Anspruch, dadurch gekennzeichnet, dass der Druck ein Laserdruck ist.
  13. Papier nach Anspruch 1, dadurch gekennzeichnet, daß die Zellen durch ausgesparte Verbindungsabschnitte verbunden sind, wobei die Dicke des Papiers in seiner ganzen zu den Zellen und zu den Verbindungsabschnitten komplementären Fläche in der Sicherheitszone im wesentlichen einheitlich ist.
  14. verfahren zur Herstellung eines Sicherheitspapiers, das eine Sicherheitszone (2) aufweist, die einen Schutz gegen mechanische Fälschungen gewährleistet und sich nur über einen Teil des Sicherheitspapiers erstreckt, dadurch gekennzeichnet, dass es den Schritt umfasst, der darin besteht, dass ein Tuch, das während der nassen Phase der Bildung des Papiers verwendet wird, mit einem Netz (5) von Masken (6) versehen wird, die in einer Zone (2) des Papiers, die sich zum Zeitpunkt der Bildung des Papiers auf Höhe der Masken befindet, eine Anzahl von in der Dicke des Papiers gebildeten Zellen (3) erzeugen können, so dass die Tiefe der Zellen 50 bis 90% der Höchstdicke des Papiers um die zellen herum in der Sicherheitszone beträgt.
  15. Verfahren nach dem vorhergehenden Anspruch, dadurch gekennzeichnet, dass das Netz von Masken auf der Innenseite oder der Außenseite des Tuchs gelegen ist.
  16. Verfahren nach einem der Ansprüche 14 und 15, dadurch gekennzeichnet, dass das Netz von Masken aus einem einstükkigen Gitter gebildet ist, das aus einer Platte von geringer Dicke stammt, in der Durchbrüche hergestellt wurden.
  17. Verfahren nach dem vorhergehenden Anspruch, dadurch gekennzeichnet, dass die Durchbrüche gemäß einem regelmäßigen Netz angeordnet sind.
  18. Verfahren nach einem der Ansprüche 14 bis 17, dadurch gekennzeichnet, dass die Masken des Netzes mindestens zum Teil in einem besonderen Muster gebildet sind, das dazu bestimmt ist, das Papierblatt individuell zu gestalten, indem in dessen Dicke Zellen geschaffen werden, die das Muster der Masken aufnehmen.
  19. Verfahren nach einem der Ansprüche 14 bis 18, dadurch gekennzeichnet, dass das Netz an sich dank einer Anordnung seiner Masken oder dank einer örtlichen Änderung der Form oder der Abmessung dieser Masken an manchen Stellen des Netzes ein besonderes Muster bildet.
EP01904025A 2000-02-01 2001-02-01 Sicherheitspapier Expired - Lifetime EP1252389B2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR0001249A FR2804448B1 (fr) 2000-02-01 2000-02-01 Papier de securite comportant une zone de securite, procede pour realiser un tel papier et dispositif pour mettre en oeuvre ce procede
FR0001249 2000-02-01
PCT/FR2001/000308 WO2001057312A1 (fr) 2000-02-01 2001-02-01 Papier de securite

Publications (3)

Publication Number Publication Date
EP1252389A1 EP1252389A1 (de) 2002-10-30
EP1252389B1 EP1252389B1 (de) 2004-11-24
EP1252389B2 true EP1252389B2 (de) 2010-03-10

Family

ID=8846533

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01904025A Expired - Lifetime EP1252389B2 (de) 2000-02-01 2001-02-01 Sicherheitspapier

Country Status (8)

Country Link
US (1) US6911115B2 (de)
EP (1) EP1252389B2 (de)
JP (1) JP4717310B2 (de)
AT (1) ATE283388T1 (de)
DE (1) DE60107385T3 (de)
ES (1) ES2233604T5 (de)
FR (1) FR2804448B1 (de)
WO (1) WO2001057312A1 (de)

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FR2849624B1 (fr) † 2003-01-02 2005-03-25 Arjo Wiggins Secutity Sas Feuille avec une zone d'opacite reduite anticopie
EP1674286B1 (de) * 2004-12-23 2011-03-02 Arjowiggins Security Sicherheitselement mit einem digitalen Merkmal und Sicherheitsgegenstand oder Dokument mit demselben.
US20070178261A1 (en) * 2006-01-27 2007-08-02 Avery Levy Paper envelope having an integrated magnetic recording medium
JP4916239B2 (ja) * 2006-07-21 2012-04-11 富士ゼロックス株式会社 記録媒体及びシート
US8125667B2 (en) * 2006-09-15 2012-02-28 Avery Levy System and method for enabling transactions by means of print media that incorporate electronic recording and transmission means
DE102006058513A1 (de) 2006-12-12 2008-06-19 Giesecke & Devrient Gmbh Entwässerungssieb und Verfahren zu seiner Herstellung
FR2913126B1 (fr) 2007-02-28 2009-07-10 Arjowiggins Licensing Soc Par Document de securite comprenant un dispositif rfid
JP5169093B2 (ja) * 2007-09-12 2013-03-27 凸版印刷株式会社 偽造防止積層体、偽造防止転写箔、偽造防止シール、偽造防止媒体、及びこれらの製造方法
FR2925924B1 (fr) 2007-12-28 2011-04-29 Arjowiggins Licensing Sas Papier de securite
FR2929962B1 (fr) * 2008-04-11 2021-06-25 Arjowiggins Licensing Sas Procede de fabrication d'une feuille comportant une sous- epaisseur ou une sur-epaisseur au niveau d'un ruban et feuille associee.
FR2932908B1 (fr) * 2008-06-24 2012-11-16 Arjowiggins Licensing Sas Structure comportant un filigrane ou pseudo-filigrane et un dispositif a microcircuit integre.
FR2953965B1 (fr) 2009-12-14 2011-11-25 Arjowiggins Security Element de securite comportant une structure optique
IT1400463B1 (it) * 2010-05-06 2013-05-31 Cartiere Fedrigoni & C Spa Procedimento per la realizzazione di una tela filigranatrice, tela filigranatrice e impianto per il suo ottenimento
FR2963363B1 (fr) * 2010-07-30 2014-12-26 Banque De France Toile poreuse pour la fabrication d'un papier filigrane, papier filigrane et procede de fabrication d'une telle toile
PL2670636T3 (pl) * 2011-02-03 2018-05-30 Federal-Mogul S.A. Wycieraczka szyby przedniej
FR2979358B1 (fr) * 2011-08-31 2013-09-27 Arjowiggins Security Support d'information destine a l'impression sur presses a toner liquide.
EP2828432B2 (de) 2012-03-19 2022-06-29 Portals Paper Limited Elektrotyp zur erzeugung eines bildes während eines papierherstellungsverfahrens
FR2999617A1 (fr) 2012-12-18 2014-06-20 Arjowiggins Security Support d'information destine a l'impression sur presses offset.
FR3046111B1 (fr) 2015-12-29 2022-03-25 Arjowiggins Security Article securise comportant une trame de revelation et une image combinee
FR3046109B1 (fr) 2015-12-29 2022-02-18 Arjowiggins Security Article securise comportant une image combinee et/ou une trame de revelation
FR3046110B1 (fr) * 2015-12-29 2022-03-25 Arjowiggins Security Article securise comportant une image combinee et/ou une trame de revelation
FR3059682B1 (fr) 2016-12-02 2020-10-30 Arjowiggins Security Procede de fabrication d'un papier filigrane
DE102018114748A1 (de) 2018-06-20 2019-12-24 Voith Patent Gmbh Laminierte Papiermaschinenbespannung
FR3120567B1 (fr) 2021-03-12 2023-04-14 Oberthur Fiduciaire Sas Article de sécurité ou ensemble d’un article de sécurité et d’un autre objet comportant une première et une deuxième trame

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1571715A (en) † 1925-11-11 1926-02-02 Int Paper Co Method of and means for forming watermarks in paper
US1901049A (en) † 1930-10-20 1933-03-14 Nat Bank Of Hungary Process for the production of genuine watermark papers without using relief molds
EP0549384A1 (de) † 1991-12-09 1993-06-30 Arjo Wiggins S.A. Verfahren zur Herstellung von Papier mit reduzierter Dichtheit und Undurchsichtigkeit in lokalen Zonen und das so erhaltene Papier

Also Published As

Publication number Publication date
DE60107385T2 (de) 2005-07-28
EP1252389B1 (de) 2004-11-24
FR2804448B1 (fr) 2002-04-05
ES2233604T5 (es) 2010-06-21
US20030056914A1 (en) 2003-03-27
ATE283388T1 (de) 2004-12-15
WO2001057312A1 (fr) 2001-08-09
DE60107385T3 (de) 2010-09-23
JP4717310B2 (ja) 2011-07-06
FR2804448A1 (fr) 2001-08-03
DE60107385D1 (de) 2004-12-30
EP1252389A1 (de) 2002-10-30
JP2003521595A (ja) 2003-07-15
US6911115B2 (en) 2005-06-28
ES2233604T3 (es) 2005-06-16

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