EP2173946B2 - Procédé de fabrication d'un matériau en feuille - Google Patents

Procédé de fabrication d'un matériau en feuille Download PDF

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Publication number
EP2173946B2
EP2173946B2 EP08827310.7A EP08827310A EP2173946B2 EP 2173946 B2 EP2173946 B2 EP 2173946B2 EP 08827310 A EP08827310 A EP 08827310A EP 2173946 B2 EP2173946 B2 EP 2173946B2
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EP
European Patent Office
Prior art keywords
ply
anyone
thickness
zero thickness
transparent element
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.)
Active
Application number
EP08827310.7A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2173946B1 (fr
EP2173946A2 (fr
Inventor
Michel Camus
Pierre Doublet
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.)
Oberthur Fiduciaire SAS
Original Assignee
Oberthur Fiduciaire 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 Oberthur Fiduciaire SAS filed Critical Oberthur Fiduciaire SAS
Priority to PL08827310.7T priority Critical patent/PL2173946T5/pl
Publication of EP2173946A2 publication Critical patent/EP2173946A2/fr
Application granted granted Critical
Publication of EP2173946B1 publication Critical patent/EP2173946B1/fr
Publication of EP2173946B2 publication Critical patent/EP2173946B2/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
    • 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
    • D21H27/30—Multi-ply
    • D21H27/32—Multi-ply with materials applied between the sheets
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24273—Structurally defined web or sheet [e.g., overall dimension, etc.] including aperture
    • Y10T428/24322—Composite web or sheet
    • Y10T428/24331—Composite web or sheet including nonapertured component

Definitions

  • the present invention relates to a method of manufacturing a sheet material comprising at least one window, as well as to a security document obtained by said method.
  • Various security sheets are known in the state of the art, provided with through windows or not, making it possible in particular to observe a security element placed at the level of the window.
  • these windows are openings made in the security sheet and covered with a partially transparent security element such as a foil or a patch, which may contain a security element.
  • a banknote comprising a layer of paper within which is incorporated a security thread.
  • the paper layer has facing windows revealing the security thread.
  • Windows can be made using a laser capable of removing material from the paper layer while leaving the security thread intact.
  • the windows can, as a variant, be produced mechanically, by cutting or abrasion.
  • the sheets thus obtained have the drawback of having differences in thickness on their faces, in particular extra thicknesses at the level of the inserted strip, so that as long as the zones of reduced or no thickness are of large surface area, the sheet becomes industrially difficult to handle. Indeed, in order to to be able to store or transport the sheets, they are stacked in large quantities, so that the zones of reduced thickness are caused to overlap, which leads to an imbalance of the stack.
  • Requirement WO 2004/001130 describes a method for making a paper substrate consisting in bringing, in contact with a paper forming fabric, a security thread, the fabric having reliefs making it possible to produce windows on the substrate through which one edge of the thread. security is visible.
  • This method is not suitable for the incorporation into the paper substrate of a security thread having a relatively large width. Indeed, during the incorporation of a wide yarn, visible defects such as a lack of material can appear on the surface of the paper layer.
  • a security paper comprising a fibrous layer having a window covered by a foil, the window being produced by stamping the fibrous layer.
  • the dimensions and / or the shape of the window depend on the punching tool used, which requires changing the tool if it is desired to form windows of different sizes and / or shapes.
  • An object of the present invention is to provide a method making it possible to obtain a sheet material with a window comprising a security element, preferably quite wide, and in particular not exhibiting any appreciable extra thickness.
  • the subject of the invention is a method of manufacturing a sheet material according to claim 1.
  • a sheet material is thus obtained, the structure of which comprises, in the region of superposition of the elongated zone of zero thickness comprising an element at least partially transparent of the first ply and a recess of the second ply, a transparent window.
  • An advantage of the invention is that by inserting an elongated element at least partially transparent in the first ply during the formation of said ply, the attachment of said at least partially transparent element with the first ply is reinforced, and the risks of delamination of the ply. structure are greatly diminished.
  • the fact of inserting the at least partially transparent element and then assembling the two jets while they are still wet, makes it possible to limit the formation of excess thicknesses where fibrous zones of the first ply cover said element at the bottom. less partially transparent.
  • the structure thus obtained is dried according to the conventional methods of the paper industry, in particular between presses or heating rolls, which has the consequence of flattening any excess thicknesses and of make the sheet material almost flat.
  • the fact of inserting the at least partially transparent element during the formation of the fibrous jet and not after the manufacture of the sheet material makes the reproduction of said material particularly difficult, while reducing the manufacturing costs.
  • the fibers comprise cellulose fibers.
  • the at least partially transparent element of the first ply has a width greater than that of the elongated zone of zero thickness comprising it, so that, during the insertion of said at least partially transparent element within the first ply, two edges said at least partially transparent elongate member are inserted into the fibrous jet.
  • Each elongated zone of zero thickness of the first ply has a width of preferably between 5 and 50 mm, more preferably between 10 and 25 mm.
  • Each at least partially transparent element has a width preferably between 9 and 60 mm, more preferably between 14 and 35 mm.
  • the at least partially transparent element has a thickness of between 10 and 50 ⁇ m.
  • this element has the same thickness as the first ply so that the outer surface of the first ply is almost flat and does not have any appreciable extra thickness.
  • the first ply of the sheet has a thickness of 20 ⁇ m, and a continuous strip of the same thickness is placed in the zone of zero thickness of the first ply.
  • the method according to the invention has the advantage that, the sheet material being composed of several plies, the thickness of the first ply can be adapted to the thickness of the ply. transparent element thus making it possible to obtain an almost flat sheet, regardless of the choice of the thickness of the transparent element.
  • the at least partially transparent element comprises at least one securing means.
  • said at least partially transparent element comprises a device with variable optical effect, interference in particular iridescent and / or diffractive, with liquid crystals, a lens system, a hologram, a magnetic, metallic or crystalline coating, magnetic fibers, tracers detectable by magnetic resonance, tracers detectable by X fluorescence, biomarkers, varnish or ink, luminescent tracers, in particular fluorescent, photochromic, thermochromic, electroluminescent and / or piezochromic and / or tribometric compounds and / or which change color on contact with one or more predetermined products, or any other similar security means.
  • At least one means of securing the at least partially transparent element is located exactly opposite a recess of the second ply.
  • a security sheet is thus obtained comprising at least one security means observable at the level of a window.
  • the at least partially transparent element comprises several securing means, only some of which are located opposite recesses of the second ply, and others are not.
  • the at least partially transparent element comprises at least one securing means located opposite a recess of the second ply, and, at In terms of the second ply recess, the total thickness of the at least partially transparent element is close to the thickness of the sheet material.
  • the at least partially transparent element has a thickness of 20 ⁇ m with extra thicknesses of a thickness of 40 ⁇ m at the level of the recesses of the second ply, in which a securing means can be placed.
  • An advantage of the security sheet according to the invention is that its structure allows it to include devices which are of greater thickness than the foils generally used in transparent windows, such as chips or touch devices.
  • the foils usually used have a thickness of the order of 5 to 10 ⁇ m, while chips or touch devices can have thicknesses of 30 to 90 ⁇ m.
  • said at least partially transparent element can be, for example, a patch, or preferably a continuous strip.
  • patch is meant here a flat element having reduced dimensions, that is to say much smaller than those of the support on which it is affixed, in particular of square, round or oval shape.
  • said at least partially transparent element may be in the form of a patch having the shape of a square with a side of 1.5 cm.
  • the at least partially transparent elongate element of the first ply is a continuous strip and has the same length as the elongated zone of zero thickness comprising it.
  • the support of the at least partially transparent element is made of a synthetic material, for example a polyester film.
  • the elongated zone of zero thickness and said at least partially transparent element are rectangular in shape, have the same thickness and extend all along said first ply.
  • the at least partially transparent element is a continuous strip whose length corresponds to those of the elongated zone of zero thickness of the first ply and the width is 6 mm greater than that of the elongated zone of zero thickness, so that said elongated zone of zero thickness is fully compensated by said continuous strip.
  • a security sheet is advantageously obtained, the face corresponding to the first ply of which is flat.
  • the first ply comprises several elongated zones of zero thickness, parallel to each other and comprising elements at the less partially transparent, along the entire surface of the first ply so that said first ply is in the form of a succession of fibrous bands and at least partially transparent parallel bands.
  • the first ply further comprises at least one at least partial lack of material, located in at least one fibrous region.
  • the first ply further comprises at least one at least partial lack of material, located in at least one fibrous region.
  • the material shortages are partial, that is to say that, at the level of said shortages, the thickness of the first ply is reduced.
  • the thickness of the first ply is sufficiently reduced in terms of the material gaps, said gaps allow the second ply to be observed by transparency.
  • the material shortages are total, that is to say that, at the level of said shortages, the thickness of the first ply is zero.
  • the shortages of material make it possible to observe the second jet directly.
  • the voids can extend over the entire width of the fibrous region in which they are located.
  • the material shortages do not extend across the full width of the fibrous region in which they are located.
  • the gaps can be of different shapes, for example geometric such as circular, triangular, square, rectangular or the like.
  • the recess of the second ply has a width less than or equal to the width of the elongated zone of zero thickness of the first ply.
  • the width of each recess of the second ply is at least 5mm less than the width of the elongated zone of zero thickness of the corresponding first ply.
  • the first and / or the second ply of sheet material comprises at least one security element.
  • the security elements are placed in the thickest ply, preferably the second ply.
  • the first and / or the second ply contains a watermark or a security thread.
  • the fibrous regions of the first ply include gaps
  • the second ply it is particularly advantageous for the second ply to include security elements located opposite these gaps.
  • one of the jets can contain a wide security thread, that is to say the width of which is greater than 2 mm, in particular between 2 and 10 mm, of preferably equal to approximately 3 mm, the zone of incorporation of this wire being covered by the other jet which thus masks the defects that the wire has created.
  • the recesses of the second ply can be of different geometric shapes, for example circular, rectangular, square, ovoid, triangular, hexagonal or the like. It is also possible to envisage that the recesses have the form of alphanumeric characters, of symbols.
  • the second ply comprises several recesses arranged so as to form a code.
  • its total thickness may vary between 70 ⁇ m and 2 mm, preferably between 90 and 300 ⁇ m.
  • the first and second jets have equal thicknesses.
  • the first and the second jets have different thicknesses.
  • the second ply comprising the recesses has a thickness greater than 60 ⁇ m, in order to avoid weakening of the second ply due to the presence of recesses, this ply having to be relatively strong in order to support the first ply during the manufacture of the ply.
  • sheet material The first ply, consisting of continuous strips of paper, can be thinner.
  • the sheet material has a total thickness of 110 ⁇ m, the first ply being 25 ⁇ m thick and the second ply being 85 ⁇ m thick.
  • the second ply of sheet material comprises at least one multitone effect watermark located opposite the at least partially transparent element of an elongated zone of zero thickness of the first ply.
  • a multitone watermark is composed of light areas, that is to say areas of thickness less than the thickness of the rest of the sheet, arranged so as to constitute a halftone pattern.
  • Such screened watermarks have been described in the patent application EP 1122360 .
  • This embodiment is particularly advantageous because it makes it possible to increase the durability of a multitone effect watermark.
  • multitone effect watermarks are very difficult to reproduce security features.
  • their production requires locally reducing the thickness of the sheet of paper very significantly, which makes them sensitive to wear and creates the risk that the sheet of paper is punctured. This risk is all the more important since the documents comprising security sheets, such as banknotes, have to be handled very frequently.
  • said elongated zone of zero thickness of the first ply is produced by eliminating the filtration of the suspension on at least one area of the fabric of said first round shape or of said former.
  • the elimination of filtration on the first round shape or on the former is carried out by depositing masking zones on the perimeter of said first round shape or of said former.
  • these masking zones are produced by means of masks made of an adhesive film, of metal, of an adhesive or even of a varnish.
  • the fabric of said first round shape or of the former is further provided with parts preventing filtration of the suspension so as to form total gaps in the fibrous material of the first ply.
  • the fabric of said first round shape or form has embossments so as to form partial gaps in the fibrous material of the first ply.
  • said elongated zone of zero thickness of the first ply is produced by removing material by means of a projection of a jet of pressurized fluid, in particular a jet of water or water. air, on the first still wet jet, before its assembly with the second jet.
  • the recess of the second ply is produced by embossing in relief the fabric of the second round shape, which prevents the deposition of fibrous material at the embossments.
  • the recesses by fixing the second round shape on the canvas of parts preventing filtration, for example a piece of metal, in particular an electrotype (that is to say a metal plate, generally made of bronze. ), a piece of glue, or a piece of resin.
  • the shape of the part will thus give the shape of the recess. It is envisaged to use parts of different shapes to make recesses of different shapes.
  • the recesses can be made by removing material by spraying a jet of pressurized fluid, in particular a water jet, onto the second jet which is still wet, before it is assembled with the first jet.
  • a jet of pressurized fluid in particular a water jet
  • the first round shape or form it, and the second round shape are synchronized so that the at least one recess of the second ply comes opposite the elongated zone of zero thickness comprising an element at least partially transparent from the first draft.
  • the invention also relates to a security document obtained according to the method described above.
  • the invention relates to a means of payment such as a bank note or a check, an identity document such as an identity card, a driving license, a passport page or a visa, or a title such as a title deed or a diploma, or any other paper-based document requiring security, or a secure packaging or label.
  • the security document is such that said first ply comprises at least two security elements facing at least two recesses of the second ply, said two security elements being placed so as to overlap when the security document is folded, to form a security or additional information.
  • a first security element can be a lenticular array which will cover a second security element constituted by an invisible image, which will only be revealed when the two security elements are superimposed.
  • a first security element will be a polarized filter and a second security element will be liquid crystals, forming, for example, an image revealed by the filter.
  • the invention further relates to a sheet material according to claim 14.
  • the sheet material may include at least one of the characteristics defined above.
  • the figure 1 is a diagram illustrating the different steps of an embodiment of the manufacturing method according to the invention.
  • a first ply 2 having elongated zones of zero thickness 4 is made from an aqueous suspension of cellulose fibers, by means of a first round shape R1 on the fabric of which masks M. De are deposited. in this way, the fibrous suspension is deposited only in the regions without masks M.
  • a continuous strip of transparent plastic 10, not shown, is inserted into the first ply at the masks M, this strip continues being wider than masks.
  • a first wet jet 2 is thus obtained consisting of an alternation of elongated zones of zero thickness 4 in which transparent plastic bands appear and of zones of fibrous material.
  • the first ply 2 thus formed is brought to a second round shape R2 in order to be deposited on the second fibrous ply 5 being formed.
  • the second ply 5 is formed on the fabric of the second round shape, on which elements have been fixed preventing the filtration of the suspension.
  • the elements are placed at marked positions so that they form recesses 6 in correspondence with the positions of the elongated zones of zero thickness 4 of the first ply 2.
  • a second wet ply 5 is thus obtained consisting of fibrous material having recesses. 6.
  • the first ply 2 is deposited on the second ply 5.
  • a two-ply sheet is obtained which can then receive a surface treatment or impregnation, for example of reinforcement of the surface with PVA and / or resistance to soiling or even improvement of printability, in particular by means of a size press or an impregnator.
  • This sheet is then dried and wound up according to usual procedures.
  • the figure 2 is a diagram illustrating a detail of the step of an embodiment of the method according to the invention, in which the first fibrous ply 2 is formed on a round-forming machine R1.
  • a continuous strip of transparent plastic material 10 is brought into contact with the first fibrous ply in formation 2.
  • the continuous strip 10 is placed such that its center is located at the level of a mask M and its edges in contact with the fibers are depositing on areas devoid of the round shape R1.
  • the figure 3 is a diagram illustrating the first round shape R1 used in a method of manufacturing a sheet material 1 according to the invention, in the particular case where the first fibrous ply 2 of said sheet material 1 comprises elongated zones of zero thickness 4 and fibrous regions comprising total material shortages 8.
  • the canvas T of the first round shape R1 comprises rectangular masks made of an adhesive film M, deposited on so as to extend, at regular intervals, over the entire perimeter of the round shape R1.
  • the first round shape R1 further comprises rectangular pieces of metal P deposited on the fabric T, between two adjacent masks M. These parts P prevent the filtration of the fiber suspension, and therefore of any fibrous deposit, so that the fibrous regions 3 of the first ply 2 have total shortages of material 7.
  • the figure 4 and the figure 5 illustrate a sheet material obtained according to an embodiment of the method of the invention, the extra thicknesses at the level of the zones of zero thickness 4 being deliberately exaggerated.
  • the sheet material 1 consists of two plies of fibrous material.
  • the first ply of fibrous material 2 has an alternation of elongated areas of fibrous material 3 and elongated areas of zero thickness 4 in which bands 10 of transparent plastic material, for example a polyester, are arranged, the edges of said bands 10 being inserted into the elongated zones of fibrous material 3 of said first ply 2.
  • the second ply of fibrous material 5 has several rectangular recesses 6 located opposite an elongated zone of zero thickness 4 of the first ply 2.
  • the first and the second plies have different thicknesses, the first ply 2 having a thickness of 40 ⁇ m and the second ply having a thickness of 70 ⁇ m.
  • the second ply of fibrous material 5 has several circular recesses 6 located opposite an elongated zone of zero thickness 4 of the first ply 2.
  • the transparent strip 10 has the same thickness as the elongated zone of zero thickness 4 in which it is inserted, so that the face of the sheet is almost flat.
  • the figure 6 illustrates a sheet material obtained according to an embodiment in which the sheet material 1 comprises a first ply 2 and a second ply 5 of fibrous material.
  • the first ply of fibrous material 2 comprises elongated zones of zero thickness 4 in which are arranged strips of a transparent plastic material 10, zones of fibrous material 7 having gaps 8 of rectangular shape extending over the entire width of said areas of fibrous material, as well as fibrous regions 3 devoid of gaps.
  • the second ply 5 has several rectangular recesses 6 located opposite an elongated zone of zero thickness 4 of the first ply.
  • the figure 7 illustrates a banknote 11 obtained by a method according to the invention, which comprises a sheet material 9 shown in the figure 4 and 5 and a watermark 12 made in the second ply 5.

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  • Paper (AREA)
  • Laminated Bodies (AREA)
EP08827310.7A 2007-07-11 2008-07-11 Procédé de fabrication d'un matériau en feuille Active EP2173946B2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL08827310.7T PL2173946T5 (pl) 2007-07-11 2008-07-11 Sposób wytwarzania materiału w postaci arkusza

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0756415A FR2918680B1 (fr) 2007-07-11 2007-07-11 Procede de fabrication d'un materiau en feuille.
PCT/FR2008/051318 WO2009022071A2 (fr) 2007-07-11 2008-07-11 Procédé de fabrication d'un matériau en feuille

Publications (3)

Publication Number Publication Date
EP2173946A2 EP2173946A2 (fr) 2010-04-14
EP2173946B1 EP2173946B1 (fr) 2013-09-04
EP2173946B2 true EP2173946B2 (fr) 2020-07-22

Family

ID=39092808

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08827310.7A Active EP2173946B2 (fr) 2007-07-11 2008-07-11 Procédé de fabrication d'un matériau en feuille

Country Status (10)

Country Link
US (1) US20100207377A1 (pl)
EP (1) EP2173946B2 (pl)
CN (1) CN101743359A (pl)
BR (1) BRPI0813542B1 (pl)
CA (1) CA2692479A1 (pl)
ES (1) ES2436144T5 (pl)
FR (1) FR2918680B1 (pl)
PL (1) PL2173946T5 (pl)
RU (1) RU2482234C2 (pl)
WO (1) WO2009022071A2 (pl)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005022018A1 (de) * 2005-05-12 2006-11-16 Giesecke & Devrient Gmbh Sicherheitspapier und Verfahren zu seiner Herstellung
DE102005032815A1 (de) * 2005-07-12 2007-01-18 Giesecke & Devrient Gmbh Verfahren zur Herstellung eines Sicherheitspapiers, Papiersieb und Formelement für Papiersieb
EP2466005B1 (en) * 2006-10-27 2017-10-04 Crane & Co., Inc. A soil and/or moisture resistant secure document
FR2953965B1 (fr) * 2009-12-14 2011-11-25 Arjowiggins Security Element de securite comportant une structure optique
JP5776697B2 (ja) * 2010-09-28 2015-09-09 凸版印刷株式会社 偽造防止機能を備えた冊子及びその製造方法
CN103835178B (zh) * 2012-11-27 2016-09-14 昆山钞票纸业有限公司 安全纸开窗方法及其所用的抄造装置和所生产的防伪纸
CN104005266A (zh) * 2014-06-14 2014-08-27 莱阳银通纸业有限公司 一种中间开窗安全线防伪纸及其制造方法、上网成型系统
WO2019136254A1 (en) 2018-01-05 2019-07-11 International Paper Company Paper products having increased bending stiffness and cross-direction strength and methods for making the same

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4314380B4 (de) * 1993-05-01 2009-08-06 Giesecke & Devrient Gmbh Sicherheitspapier und Verfahren zu seiner Herstellung
DE69422029T2 (de) * 1993-09-28 2000-08-10 Arjo Wiggins Sa Sicherheitspapier mit einer transparenten zone deren opazität fast null ist
FR2827986B1 (fr) * 2001-07-30 2004-04-02 Arjo Wiggins Sa Procede de fabrication d'un article comportant une couche fibreuse et au moins une puce electronique, et article ainsi obtenu
RU2207417C1 (ru) * 2002-08-14 2003-06-27 Объединение государственных предприятий и организаций по производству государственных знаков (Объединение "Гознак") Способ изготовления бумаги, защищенной от подделки, и бумага, защищенная от подделки
CH699167B1 (de) * 2003-11-28 2010-01-29 Landqart Sicherheitspapier und Verfahren zu dessen Herstellung.
DE102005045566A1 (de) * 2005-03-23 2006-09-28 Giesecke & Devrient Gmbh Mehrlagiges Sicherheitspapier
FR2891761B1 (fr) * 2005-10-06 2008-04-04 Arjowiggins Security Soc Par A Procede de fabrication d'un materiau en feuille comportant au moins une fenetre.
US7910502B1 (en) * 2006-03-31 2011-03-22 Honeywell International Inc. Liquid submersion ballistic performance through hybridization

Also Published As

Publication number Publication date
PL2173946T5 (pl) 2023-06-05
PL2173946T3 (pl) 2014-01-31
ES2436144T3 (es) 2013-12-27
BRPI0813542B1 (pt) 2019-01-15
WO2009022071A2 (fr) 2009-02-19
FR2918680A1 (fr) 2009-01-16
WO2009022071A3 (fr) 2009-04-09
ES2436144T5 (es) 2021-04-06
EP2173946B1 (fr) 2013-09-04
BRPI0813542A2 (pt) 2014-12-23
EP2173946A2 (fr) 2010-04-14
FR2918680B1 (fr) 2009-10-16
CA2692479A1 (fr) 2009-02-19
RU2010104171A (ru) 2011-08-20
US20100207377A1 (en) 2010-08-19
RU2482234C2 (ru) 2013-05-20
CN101743359A (zh) 2010-06-16

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