EP0687324B2 - Sicherheitspapier mit reduzierter dicke und opazität in lokalen bereichen und das verfahren zu seiner herstellung - Google Patents

Sicherheitspapier mit reduzierter dicke und opazität in lokalen bereichen und das verfahren zu seiner herstellung Download PDF

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Publication number
EP0687324B2
EP0687324B2 EP94908388A EP94908388A EP0687324B2 EP 0687324 B2 EP0687324 B2 EP 0687324B2 EP 94908388 A EP94908388 A EP 94908388A EP 94908388 A EP94908388 A EP 94908388A EP 0687324 B2 EP0687324 B2 EP 0687324B2
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EP
European Patent Office
Prior art keywords
sheet
thickness
paper
opacity
region
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
EP94908388A
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English (en)
French (fr)
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EP0687324B1 (de
EP0687324A1 (de
Inventor
Pierre Doublet
Yves Douesneau
Jean-Paul Menez
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
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ArjoWiggins Security SAS
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Publication date
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Application filed by ArjoWiggins Security SAS filed Critical ArjoWiggins Security SAS
Publication of EP0687324A1 publication Critical patent/EP0687324A1/de
Application granted granted Critical
Publication of EP0687324B1 publication Critical patent/EP0687324B1/de
Publication of EP0687324B2 publication Critical patent/EP0687324B2/de
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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
    • D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
    • D21H27/06—Vegetable or imitation parchment; Glassine paper
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F1/00—Wet end of machines for making continuous webs of paper
    • D21F1/44—Watermarking devices
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F11/00—Processes for making continuous lengths of paper, or of cardboard, or of wet web for fibre board production, on paper-making machines
    • D21F11/006—Making patterned paper
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F11/00—Processes for making continuous lengths of paper, or of cardboard, or of wet web for fibre board production, on paper-making machines
    • D21F11/06—Processes for making continuous lengths of paper, or of cardboard, or of wet web for fibre board production, on paper-making machines of the cylinder type
    • D21F11/08—Processes for making continuous lengths of paper, or of cardboard, or of wet web for fibre board production, on paper-making machines of the cylinder type paper or board consisting of two or more layers
    • 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

Definitions

  • the invention relates to a sheet of paper security with localized areas of thickness and reduced opacity and more particularly a paper for banknotes or a security paper comprising important areas of thickness and opacity reduced, at specific locations, these areas being watermarks.
  • the invention relates preferably to a sheet paper having at least one area having a uniform average opacity of at least 40% compared to the opacity of the rest of the sheet.
  • paper means any leaf obtained by wet process using a suspension of natural cellulose fibers and / or fibers synthetic materials that may contain various various additives commonly used in stationery.
  • the light areas are due to the fact that the thickness of the sheet and the density of the fibers are lower than the thickness of the leaf and the density of fibers in areas where there was no impression by the filigree roller.
  • the dark areas are due to the fact that the thickness of the leaf and the density of fibers are more important.
  • Such watermarks have clear parts which generally have areas of a few mm 2 and the variation in opacity between the clear part of the watermark and the non-watermarked paper is small. If you want to print on the light areas of these watermarks, it is very difficult to match the light areas and printing and even with a very precise identification of watermarks, it is difficult to get a good match.
  • Zones can for example be made under watermark shape using shape methods round or by watermarker rolls.
  • the first problem is: To achieve a watermark, the skilled person knows that one can emboss the canvas with a round shape using a punch. For example, if you want a circular area clear, emboss the canvas with a circular punch. However, using such a process, one does not get a clear area of constant opacity. Indeed, we glimpse that fibers tend to settle in more large quantity near the center of the part embossed only on the edges and thus the center of the watermark appears much less clear than the edges. Yes we use a filigraner roll which has asperities in relief, we obtain the same phenomenon.
  • a second problem that arises is that when one wants areas of reduced thickness and therefore clear with an area of more than 0.4 cm 2 , one does not obtain a clear area.
  • EP-A-549,384 describes a method of manufacturing a paper sheet comprising at least one zone having a reduced thickness relative to the thickness of the remainder of the sheet, and having an area of at least 0.4 cm 2 , by arranging on an embossed fabric or not, optionally arranged on a round shape, an aqueous dispersion containing at least cellulosic fibers, by draining the water to form the sheet, in the presence or absence of a filigree roller, by drying.
  • Flexible parts are used which are associated with the filigranous fabric, the filigree roller or the round shape, so that the water dripping during the formation of the sheet in the zones of the flexible parts is reduced by compared to the draining of the water in the zones having no flexible part.
  • the sheet of paper obtained by this process is such that the area having a reduced thickness has a thickness less than 40% of the thickness of the rest of the sheet.
  • the sheet can also be such that said zone has a lower average opacity of up to 40 % of the opacity of the rest of the sheet.
  • the process requires a transformation of the paper machine, namely that one associates with the filigranous fabric, or the filigree roller, or the round shape, flexible parts. These parts must be fixed at specific locations and require therefore an additional manipulation.
  • the area has a thickness of 30% less than the thickness of the rest of the leaf.
  • EP-A-0 229 645 a method of manufacturing a security sheet comprising a security thread. It consists of forming a first layer of paper and a second layer of paper, to introduce a security element between these two layers, to join these two layers. One of layers has local regions whose thickness is 0 to 30% of the total thickness of the paper sheet. A such security sheet makes it possible to obtain a sheet comprising a security thread more or less apparent on the surface.
  • banknotes which consist of sheets of synthetic material transparent on which an impression is made double-sided, the impression being such that it leaves a completely transparent area. On this transparent area we postpone a hologram.
  • Such notes in plastic however have some disadvantages. They are not very resistant to handling and circulation because the print can be fragile on the plastic. It is the reason why paper notes are preferred, but we want at the same time to realize a zone the more transparent possible.
  • the zone obtained is certainly of reduced thickness and reduced opacity, but wants an area of opacity even lower.
  • Another object of the invention is to make a virtually transparent area in the paper or translucent, without breaking the paper in this zoned.
  • Another goal is to realize in the paper a virtually transparent or translucent area, this area that can be printed and / or hologram or any other distinctive mark or security.
  • This zone must therefore be sufficiently resistant to support the postponement of a security mark.
  • An object of the invention is therefore to provide areas of reduced thickness compared to the rest of the sheet without needing to use flexible parts associated.
  • Another object of the invention is to provide areas having a much lower thickness reduced by 40% compared to the rest of the sheet.
  • the invention relates to a sheet of paper comprising at least one zone of reduced thickness and opacity having an area of more than 0.4 cm 2 , characterized in that said sheet is a sheet comprising a structure bi-jet consisting of a first layer of paper having at least one zone whose thickness is zero and a second layer of paper of substantially constant thickness, the two layers being directly joined together, the thickness of the sheet in said zone (8, 20) of reduced thickness and opacity being up to 80% with respect to the thickness of the remainder of the sheet.
  • the sheet according to the invention may comprise in part of the opacity area reduced a hologram, an iridescent bed, an impression using conventional inks or inks containing pigments colored, fluorescent pigments, luminescent, photochromic, piezo-optical, piezochromic compounds.
  • the second throw can be partially or totally transparentized.
  • this jet can be obtained according to the technique of tracing paper, namely from a suspension of highly refined cellulose fibers, for get transparency.
  • the second throw is partially transparent, it is transparent by chemical pathway in an area that comes in correspondence with the zone of zero thickness of the first jet.
  • the layers of paper are made on separate paper cloths, we obtain a sheet of paper that can no longer be separated into because of the rapid coupling of these layers and their drying in common.
  • the sheet of paper does not not differentiate from a sheet of paper made on a unique canvas.
  • the process is such that the thick regions none are made by embossed areas in relief on the mechanical canvas, from which it follows that the deposit of fibers in these areas is totally forbidden.
  • At least one of the layers of paper are made in the form of a pattern simple geometrical form, particularly in the form of approximately rectangular, round or elliptical or any other form.
  • Figure 1 shows a device that can be used to make a paper according to the invention.
  • the device basically corresponds to paper machines usual trade practices, which include at least two separate wet areas.
  • the embodiment preferred shown here is constituted by a combination of two round wet sections 1 and 2 of a so-called double-round paper machine.
  • a first strip of paper 3 which is directed towards the second wet part 2 being suspended beneath the takeup felt 4.
  • a second 5. In the second installation 2, a second 5.
  • the two strips of paper are gathered at the level of the roll 6 and are then dried.
  • FIGs 2 and 3 there is shown a paper that is not covered by the claims.
  • This sheet 7 is formed of a first band 3 and a second band 5.
  • the band 5 comprises clear watermarks 8 obtained for example by an embossed embossed fabric of the round shape 5. These clear watermarks have a depth e 1 .
  • the total thickness of the sheet 7 is the sum of the thicknesses e 3 of the strip 3 and e 5 of the strip 5.
  • the thickness e 2 of the sheet 7 facing the watermarks 8 is less than the total thickness e 1 .
  • the region 8 is such that the band 5 has a hole.
  • Thickness reduction is therefore about 33% in the first case and 50% in the second case.
  • the sheet of FIG. 3 thus has a reduced opacity much lower than the opacity of the sheet of FIG. 2, in region 8 and for a thickness e t that is substantially equal.
  • the sheet shown in FIG. 5 is made according to the technique of the monojet. This sheet is obtained by the process described in application EP-A-549 384 and is not covered by the claims of the present European patent.
  • the sheet 11 comporet zones 12, 12 a, 12 b, of thickness e 1 and zones 12, 12 has a thickness e 2 non-zero. Areas 12, 12a have a density of fibers much lower than the density of zones 12, 12 a, 12 b. Each zone 13, 13 has undergone additional transparency. This transparency is carried out chemically according to this embodiment. Preferably, the transparentization is carried out using a transparency composition described in European patent EP-91 341. The additional transparency is performed after drying of the sheet at the end of the machine.
  • This composition is applied for example by printing using an engraved printing cylinder, engraving of the cylinder corresponding to the zones 13, 13 has to transparentiser.
  • Figure 6 shows in section a sheet 14 obtained by the technique of the "bijet" represented on the figure 1.
  • the sheet 14 shown in FIG. 6 is formed a first band 16 and a second band 17.
  • Band 17 is such that it has areas 18 zero thickness.
  • the band 16 can be transparent or not in the areas next to zones 18.

Claims (8)

  1. Sicherheitspapierbogen mit mindestens einer Zone (8, 20) verminderter Dicke und verminderter Opazität mit einer Oberfläche von mehr als 0,4 cm2, dadurch gekennzeichnet, daß der Bogen eine zweilagige Struktur aus einer ersten Papierschicht (17) mit mindestens einer Zone (18) der Dicke null und einer zweiten Papierschicht (16) mit einer im wesentlichen konstanten Dicke umfaßt, wobei die beiden Schichten direkt miteinander verbunden sind, die Dicke des Bogens in den Zonen verminderter Dicke und verminderter Opazität bis zu 80% der Dicke des übrigen Bogens beträgt.
  2. Sicherheitspapierbogen mit mindestens einer Zone (8, 20) verminderter Opazität nach Anspruch 1, dadurch gekennzeichnet, daß die Zone (8, 20) infolge der Verminderung ihrer Dicke gegenüber der Dicke des übrigen Bogens und infolge einer zusätzlichen Transparentisierung der zweiten Schicht (16) eine verminderte Opazität aufweist.
  3. Bogen nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß der Bogen in der Zone verminderter Dicke und verminderter Opazität eine Dicke von weniger als 40% der Dicke des übrigen Bogens aufweist.
  4. Bogen nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß er in einem Teil der Zone verminderter Opazität ein Sicherheitselement (15) wie ein Hologramm, eine irisierende Schicht, einen Aufdruck aus herkömmlichen Druckfarben oder Druckfarben mit Farbpigmenten, Fluoreszenzpigmenten, Leuchtpigmenten und photochromen, piezooptischen und piezochromen Zusammensetzungen enthält.
  5. Bogen nach einem der Ansprüche 2 bis 4, dadurch gekennzeichnet, daß die zweite Schicht (16) vollkommen transparentisiert ist und aus einer Suspension hochgereinigter Cellulosefasern nach dem Pauspapierverfahren erhalten wird.
  6. Bogen nach einem der Ansprüche 2 bis 4, dadurch gekennzeichnet, daß die zweite Schicht (16) in einer Zone, die auf der Zone (18) der Dicke null der ersten Schicht (17) zu liegen kommt, teilweise chemisch transparentisiert ist.
  7. Verwendung eines Bogens nach einem der Ansprüche 1 bis 6 als Banknotenpapier.
  8. Verwendung eines Bogens nach einem der Ansprüche 1 bis 6 als Sicherheitspapier.
EP94908388A 1993-03-02 1994-03-01 Sicherheitspapier mit reduzierter dicke und opazität in lokalen bereichen und das verfahren zu seiner herstellung Expired - Lifetime EP0687324B2 (de)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
FR9302373 1993-03-02
FR9302373 1993-03-02
FR9311485 1993-09-28
FR9311485 1993-09-28
PCT/FR1994/000225 WO1994020679A1 (fr) 1993-03-02 1994-03-01 Papier de securite comportant des zones localisees d'epaisseur et d'opacite reduites et son procede de fabrication

Publications (3)

Publication Number Publication Date
EP0687324A1 EP0687324A1 (de) 1995-12-20
EP0687324B1 EP0687324B1 (de) 2000-01-19
EP0687324B2 true EP0687324B2 (de) 2005-12-07

Family

ID=26230137

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94908388A Expired - Lifetime EP0687324B2 (de) 1993-03-02 1994-03-01 Sicherheitspapier mit reduzierter dicke und opazität in lokalen bereichen und das verfahren zu seiner herstellung

Country Status (5)

Country Link
US (1) US6402888B1 (de)
EP (1) EP0687324B2 (de)
DE (1) DE69422705T3 (de)
ES (1) ES2142937T5 (de)
WO (1) WO1994020679A1 (de)

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Publication number Priority date Publication date Assignee Title
FR2741089B1 (fr) * 1995-11-10 1997-12-26 Arjo Wiggins Sa Feuille de securite d'epaisseur sensiblement constante
IT1283452B1 (it) * 1996-07-18 1998-04-21 Fad Fabriano Autoadesivi S P A Impianto per la fabbricazione di un mezzo filtrante in forma di foglio
US6368455B1 (en) * 2001-05-31 2002-04-09 Appleton Papers Inc. Method for making security paper
FR2804447B1 (fr) * 2000-02-01 2002-04-05 Arjo Wiggins Sa Papier comportant un filigrane a effet multiton et toile pour fabriquer ce papier
FR2804448B1 (fr) * 2000-02-01 2002-04-05 Arjo Wiggins Sa Papier de securite comportant une zone de securite, procede pour realiser un tel papier et dispositif pour mettre en oeuvre ce procede
SE516625C2 (sv) * 2000-06-20 2002-02-05 Holmen Ab Säkerhetspapper/kartong och förfarande för framställning därav
FR2816642B1 (fr) * 2000-11-10 2003-07-18 Banque De France Procede de fabrication d'un document de securite
FR2838228B1 (fr) 2002-04-03 2005-03-25 Arjo Wiggins Document de securite avec marqueur
FR2839917B1 (fr) * 2002-05-22 2004-10-08 Arjo Wiggins Article forme a partir d'au moins un jet de matiere fibreuse comportant au moins une zone d'epaisseur nulle et procede de fabrication dudit article
FR2842460B1 (fr) 2002-07-19 2004-10-08 Arjo Wiggins Document de securite protege contre la copie recto/verso
FR2849624B1 (fr) 2003-01-02 2005-03-25 Arjo Wiggins Secutity Sas Feuille avec une zone d'opacite reduite anticopie
FR2853970B1 (fr) * 2003-04-18 2005-10-21 Arjo Wiggins Support multicouche translucide presentant un motif visible en reflection et non en transparence
FR2861101B1 (fr) * 2003-10-15 2007-06-15 Arjo Wiggins Papier de securite multijet
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ITVR20040104A1 (it) * 2004-06-16 2004-09-16 Cartiere Fedrigoni & C Spa Apparecchiatura per la produzione di carta di sicurezza e relativo procedimento
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FR2897078B1 (fr) 2006-02-09 2011-08-19 Arjowiggins Materiau en feuille comportant au moins un filigrane avec une nuance coloree.
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FR2903706B1 (fr) * 2006-07-13 2010-02-05 Arjowiggins Feuille comprenant une partie en matiere plastique et une partie en matiere fibreuse.
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
US20080166262A1 (en) * 2007-01-04 2008-07-10 Deka Ganesh C Medical packaging substrate with security feature
FR2918679B1 (fr) 2007-07-11 2017-12-01 Arjowiggins Licensing Sas Procede de fabrication d'un materiau en feuille.
FR2925535B1 (fr) * 2007-12-21 2011-05-06 Arjowiggins Licensing Sas Feuille de securite comprenant un substrat fibreux comportant au moins un filigrane
FR2925534B1 (fr) * 2007-12-24 2010-02-12 Arjowiggins Licensing Sas Structure de securite comportant des cristaux liquides nematiques
FR2925924B1 (fr) * 2007-12-28 2011-04-29 Arjowiggins Licensing Sas Papier de securite
GB2458485B (en) * 2008-03-19 2010-07-14 Rue De Int Ltd Improvements in making sheets
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.
AU2009258133A1 (en) * 2008-06-12 2009-12-17 Crane & Co., Inc. Method for increasing adhesion between a security element and a fibrous sheet material
FR2941713B1 (fr) * 2009-02-03 2011-04-01 Arjowiggins Security Procede de securisation d'un objet opaque colore.
US9694536B2 (en) 2013-11-18 2017-07-04 Huhtamaki, Inc. System and method for embossing the wire side of a molded fiber article
GB2539644A (en) * 2015-06-16 2016-12-28 Mcor Tech Ltd Desktop 3-dimensional printing apparatus
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FR3080630B1 (fr) * 2018-04-25 2021-10-08 Honnorat Rech & Services Papier de securite avec inserts manuels
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FR2685019A1 (fr) * 1991-12-12 1993-06-18 Arjo Wiggins Sa Papier de securite ou decoratif contenant des planchettes.

Also Published As

Publication number Publication date
ES2142937T3 (es) 2000-05-01
US6402888B1 (en) 2002-06-11
DE69422705T2 (de) 2000-10-05
EP0687324B1 (de) 2000-01-19
EP0687324A1 (de) 1995-12-20
WO1994020679A1 (fr) 1994-09-15
DE69422705T3 (de) 2006-08-17
ES2142937T5 (es) 2006-07-16
DE69422705D1 (de) 2000-02-24

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