EP2173946A2 - Procédé de fabrication d'un matériau en feuille - Google Patents
Procédé de fabrication d'un matériau en feuilleInfo
- Publication number
- EP2173946A2 EP2173946A2 EP08827310A EP08827310A EP2173946A2 EP 2173946 A2 EP2173946 A2 EP 2173946A2 EP 08827310 A EP08827310 A EP 08827310A EP 08827310 A EP08827310 A EP 08827310A EP 2173946 A2 EP2173946 A2 EP 2173946A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- jet
- partially transparent
- recess
- 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.)
- Granted
Links
- 239000000463 material Substances 0.000 title claims abstract description 64
- 238000000034 method Methods 0.000 title claims abstract description 55
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 16
- 238000001914 filtration Methods 0.000 claims abstract description 14
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 12
- 239000007900 aqueous suspension Substances 0.000 claims abstract description 4
- 239000002657 fibrous material Substances 0.000 claims description 17
- 239000004744 fabric Substances 0.000 claims description 12
- 239000000835 fiber Substances 0.000 claims description 9
- 239000012530 fluid Substances 0.000 claims description 7
- 239000000725 suspension Substances 0.000 claims description 7
- 239000002184 metal Substances 0.000 claims description 6
- 229920003023 plastic Polymers 0.000 claims description 6
- 238000000151 deposition Methods 0.000 claims description 5
- 230000000694 effects Effects 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 239000002966 varnish Substances 0.000 claims description 4
- 229920003043 Cellulose fiber Polymers 0.000 claims description 3
- 239000002313 adhesive film Substances 0.000 claims description 3
- 239000003292 glue Substances 0.000 claims description 3
- 239000004973 liquid crystal related substance Substances 0.000 claims description 3
- 230000000873 masking effect Effects 0.000 claims description 3
- 239000000090 biomarker Substances 0.000 claims description 2
- 239000011248 coating agent Substances 0.000 claims description 2
- 238000000576 coating method Methods 0.000 claims description 2
- 238000004049 embossing Methods 0.000 claims description 2
- 230000003287 optical effect Effects 0.000 claims description 2
- 229920000728 polyester Polymers 0.000 claims description 2
- 239000011347 resin Substances 0.000 claims description 2
- 229920005989 resin Polymers 0.000 claims description 2
- 230000001360 synchronised effect Effects 0.000 claims description 2
- 238000004876 x-ray fluorescence Methods 0.000 claims description 2
- 239000004033 plastic Substances 0.000 claims 1
- KEUKAQNPUBYCIC-UHFFFAOYSA-N ethaneperoxoic acid;hydrogen peroxide Chemical compound OO.CC(=O)OO KEUKAQNPUBYCIC-UHFFFAOYSA-N 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 239000011888 foil Substances 0.000 description 4
- 230000007547 defect Effects 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- 230000008021 deposition Effects 0.000 description 2
- 238000005304 joining Methods 0.000 description 2
- 239000012780 transparent material Substances 0.000 description 2
- 229910000906 Bronze Inorganic materials 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000010974 bronze Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000032798 delamination Effects 0.000 description 1
- 230000003292 diminished effect Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 229920006267 polyester film Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
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, and a security document obtained by said method.
- various security sheets provided with through windows or not, in particular to observe a security element placed at the window.
- these windows are openings 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.
- Patent GB 1 552 853 discloses a bank note comprising a paper layer in which a security thread is incorporated. The paper layer has windows on the side revealing the security thread.
- the windows can be made using a laser capable of removing material from the paper layer while leaving the security thread intact.
- the windows may, alternatively, be made mechanically, by cutting or abrasion.
- EP 229 645 discloses a security paper comprising two jets of paper between which is interposed a security thread. Holes are made on at least one of the jets of paper using reliefs on the forming web of this paper jet. Also known from patent application EP 0 687 324, a method of manufacturing a bijet paper sheet having at least one region of reduced thickness relative to the thickness of the remainder of the sheet. This gives a virtually transparent area without having to pierce the paper in this area.
- a sheet of security paper consisting of two layers each having a zone of zero thickness facing one another and a strip of transparent material embedded in the sheet of paper, so that the band of transparent material is facing areas of zero thickness. This gives a transparent window.
- the sheets thus obtained have the disadvantage of having on their faces differences in thickness, in particular thicknesses at the level of the inserted strip, so that as long as the areas of reduced or zero thickness are one large area, the sheet becomes industrially difficult to handle. Indeed, in order to can store or transport the sheets, they are stacked in large quantities, so that the areas of reduced thickness are brought to overlap, which leads to an imbalance of the stack.
- the application WO 2004/001130 describes a method for producing a paper substrate consisting in bringing, in contact with a paper forming web, a security thread, the fabric having reliefs making it possible to produce windows on the substrate through which an edge of the security thread is visible.
- This method is not suitable for incorporating into the paper substrate a safety wire having a relatively large width. Indeed, when incorporating a wide wire, visible defects such as a lack of material may appear on the surface of the paper layer.
- Patent applications EP 0 860 298 and EP 0 625 431 also disclose a process for producing a security paper in which a security thread is incorporated into a first layer of paper according to the "window” technique.
- thread "described in the patent application EP 0 059 056. This layer of paper has on one side a plurality of windows revealing the security thread.
- the first layer is then assembled with a second layer of paper to hide the defect (s).
- US Pat. No. 6,428,051 discloses a security paper comprising a fibrous layer having a window covered by a foil, the window being made by stamping the fibrous layer.
- the dimensions and / or 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.
- the patent application DE 2005 045 566 discloses a sheet of paper comprising two paper jets each having a zone of zero thickness, one of the jets may comprise a safety band and the zones of zero thickness may comprise a transparent element of the polyurethane type placed after drying of the paper sheet.
- French Patent Application FR 2 891 761 also discloses a method of manufacturing a sheet material that may comprise windows made by projecting a jet of pressurized fluid after joining the two jets forming the sheet material.
- An object of the present invention is to provide a method for obtaining a sheet material with a window comprising a security element, preferably quite large, and in particular having no significant extra thickness.
- the subject of the invention is a method for producing a sheet material comprising at least two fibrous juxtaposed juxtaposed with one another, the method comprising the following steps: making a first paper jet, comprising at least an elongated zone of zero thickness, by filtration of an aqueous suspension of fibers on the web of a first round shape or of a formation, an at least partially transparent element being inserted into the jet during the formation of the jet, such said at least partially transparent element is disposed at least in the elongate zone of zero thickness, making a second paper jet on the web of a second round shape so as to form at least one recess in the second jet,
- a sheet material is thus obtained whose structure comprises, in the superposition region of the elongate zone of zero thickness comprising an at least partially transparent element of the first jet and a recess of the second jet, a transparent window.
- An advantage of the invention is that by inserting an elongated element at least partially transparent in the first jet during the formation of said jet, the attachment of said element at least partially transparent with the first jet is reinforced, and the risk of delamination of the 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 extra thicknesses where fibrous zones of the first jet cover said element at less partially transparent. Indeed, once the two jets of paper assembled, the structure thus obtained is dried according to the conventional processes of the paper industry, especially between presses or heating cylinders, which has the effect of flattening any excess thicknesses and make the material almost flat.
- inserting the element at least partially transparent during the formation of the fibrous jet and not after the manufacture of the sheet material makes reproduction of said material particularly difficult, while reducing manufacturing costs.
- the fibers comprise cellulose fibers.
- the at least partially transparent element of the first jet has a width greater than that of the elongate zone of zero thickness comprising it, so that, when said element is inserted into the less partially transparent within the first jet, two edges of said elongate element at least partially transparent are inserted into the fibrous jet.
- said at least partially elongate elongated element has a width 4 to 10 mm greater than that of the elongated zone of zero thickness in which it is disposed.
- Each elongated zone of zero thickness of the first jet has a width preferably between 5 and 50 mm, more preferably between 10 and 25 mm.
- Each at least partially transparent element has a width of 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 jet so that the outer surface of the first jet is almost flat and has no significant extra thickness.
- the first jet of the sheet has a thickness of 20 microns, and a continuous strip of the same thickness is disposed in the zone of zero thickness of the first jet.
- the method according to the invention has the advantage that, the sheet material being composed of several jets, it is possible to adapt the thickness of the first jet to the thickness of the transparent element thus making it possible to obtain an almost plane sheet, whatever the choice of the thickness of the transparent element.
- the at least partially transparent element comprises at least one security means.
- said at least partially transparent element comprises a device with variable optical effect, interferential, in particular iridescent and / or diffractive, with liquid crystals, a lens system, a hologram, a magnetic coating, metallic or crystalline, magnetic fibers detectable by magnetic resonance, tracers detectable by X-ray fluorescence, biomarkers, a varnish or an ink, luminescent tracers, in particular fluorescent tracers, photochromic, thermochromic, electroluminescent and / or piezochromic compounds and or tribometric and / or which change color in contact with one or more predetermined products, or any other similar security means.
- At least one means for securing the at least partially transparent element is located exactly opposite a recess of the second jet. This gives a security sheet comprising at least one observable security means at a window. It is also envisaged that the at least partially transparent element comprises several securing means some of which are located opposite recesses of the second jet, and others are not.
- the at least partially transparent element comprises at least one securing means situated opposite a recess of the second jet, and, at the level of the recess of the second jet, the total thickness of the element at less partially transparent is close to the thickness of the sheet material.
- the at least partially transparent element has a thickness of 20 .mu.m with thicknesses of a thickness of 40 .mu.m in the recesses of the second jet, in which a securing means can be placed.
- said at least partially transparent element may be, for example, a patch, or preferably a continuous band.
- the elongated at least partially transparent element of the first jet 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 of rectangular shape, have the same thickness and extend all along said first jet.
- 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 jet 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 band. In this way, it is advantageous to obtain a security sheet whose face corresponding to the first jet is flat.
- the first jet comprises several elongate zones of zero thickness, parallel to each other and comprising at least partially transparent elements, along the entire surface of the first jet, so that said first jet is presented as a succession of fibrous bands and at least partially parallel transparent bands.
- the first jet further comprises at least a lack of at least partial material, located in at least one fibrous region.
- a first structured stream is obtained which is particularly difficult to imitate.
- such a structure makes it possible, thanks to the presence of material shortcomings, to obtain tactile effects allowing recognition of the material to the touch.
- the lack of material is partial, that is to say that, at the level of said gaps, the thickness of the first jet is reduced. If necessary, if the thickness of the first jet is sufficiently reduced in terms of lack of material, said gaps allow to observe the second jet by transparency.
- the shortages of material are total, that is to say that, at the level of said gaps, the thickness of the first jet is zero.
- the lack of material makes it possible to directly observe the second jet.
- the gaps may extend over the entire width of the fibrous region in which they are located. In another embodiment, the material gaps do not extend the full width of the fibrous region in which they are located.
- the gaps may be of different shapes, for example geometric such as circular, triangular, square, rectangular or the like.
- the recess of the second jet has a width less than or equal to the width of the elongate zone of zero thickness of the first jet.
- the width of each recess of the second jet is at least 5 mm less than the width of the elongate zone of zero thickness of the corresponding first jet.
- the first and / or second stream of the sheet material comprises at least one security element.
- the security elements are placed in the thickest jet, preferably the second jet.
- the first and / or second stream contains a watermark or security thread.
- the second jet comprises security elements located opposite these gaps.
- one of the jets can contain a wide security thread, that is to say whose width is greater than 2 mm, in particular between 2 and 10 mm, of preferably equal to about
- the recesses of the second jet may be of different geometric shapes, for example circular, rectangular, square, ovoid, triangular, hexagonal or the like. We can still consider that the recesses have the form of alphanumeric characters, symbols.
- the second jet comprises a plurality of 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 second jets have different thicknesses.
- the second jet having the recesses has a thickness greater than 60 microns, to avoid embrittlement of the second jet due to the presence of recesses, this jet must be relatively solid to support the first jet during the manufacture of the sheet material.
- the first jet consisting of continuous strips of paper, may be finer.
- the sheet material has a total thickness of 110 ⁇ m, the first jet being 25 ⁇ m thick and the second jet being 85 ⁇ m thick.
- the second jet of the sheet material comprises at least one multitone effect watermark located opposite the at least partially transparent element of an elongate zone of zero thickness of the first jet.
- a multiton watermark is composed of light areas, ie areas of thickness less than the thickness of the remainder of the sheet, arranged so as to form a raster pattern.
- Such screened watermarks have been described in patent application EP 1122360. This embodiment is particularly advantageous because it makes it possible to increase the durability of a multitone effect watermark.
- multitone watermarks are security elements that are very difficult to reproduce.
- their implementation requires locally reducing the thickness of the paper sheet very importantly, which makes them sensitive to wear and generates the risk that the paper sheet is found.
- said multitone watermark is protected and the risk of hole formation is prevented.
- said elongate zone of zero thickness of the first jet is produced by suppressing the filtration of the suspension on at least one zone of the fabric of said first round shape or of said former.
- the removal of the filtration on the first round shape or on forming it is carried out by depositing masking zones on the perimeter of said first round shape or said forming.
- these masking zones are made by means of masks made of an adhesive film, metal, an adhesive or a varnish.
- the fabric of said first round shape or form is further provided with parts preventing filtration of the suspension so as to form total gaps in the fibrous material of the first jet.
- the fabric of said first round or forming form has embossments so as to form partial gaps in the fibrous material of the first jet.
- said elongate zone of zero thickness of the first jet is produced by removal of material by means of a jet of pressurized fluid, in particular a jet of water or water. air, on the first jet still wet, before its assembly with the second jet.
- the recess of the second jet is made by embossing the fabric of the second round shape in relief, which prevents the deposition of fibrous material at the embossments.
- the recesses by fixing on the fabric of the second round shape of parts preventing filtering, for example a piece of metal, in particular an electrotype (ie a metal plate, generally made of bronze ), a piece of glue, or a piece of resin.
- a piece of metal in particular an electrotype (ie a metal plate, generally made of bronze ), a piece of glue, or a piece of resin.
- the shape of the piece will thus give the shape of the recess. It is envisaged to use pieces of different shapes to make recesses of different shapes.
- the recesses can be made by removal of material by means of a projection of a jet of pressurized fluid, in particular a jet of water, on the second still wet jet, before being assembled with the first jet.
- a jet of pressurized fluid in particular a jet of water
- the first round shape or the shape thereof, and the second round shape are synchronized so that the at least one recess of the second jet comes opposite the elongated zone of zero thickness comprising an element at least partially transparent of the first jet.
- 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 driver's license, a passport page or a visa, or a title such as title deed or a diploma, or other paper-based document requiring security, or secure packaging or a label.
- the security document is such that said first jet comprises at least two security elements facing at least two recesses of the second jet, 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 may be a lenticular network that will cover a second security element consisting of an invisible image, which will be revealed only during the superposition of the two security elements.
- 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 comprising:
- a first jet of paper comprising at least one elongated zone of zero thickness, an at least partially transparent element inserted in said jet during the formation of said jet,
- a second paper jet at least one recess in said second jet, at least one recess of the second jet being located facing said at least one elongate zone of zero thickness of the first jet comprising an at least partially transparent element.
- the sheet material may comprise at least one of the features defined above.
- FIG. 1 is a diagram illustrating the various steps of the method according to the invention
- FIG. 2 is a diagram illustrating a particular step of the method according to the invention
- FIG. 3 is a diagram illustrating one of the round shapes used for the manufacture of a sheet material according to one embodiment of the invention
- FIG. 4 is a cross sectional view of a sheet material obtained according to one embodiment; of the invention, - Figure 5 shows a top view of the sheet material of the figure
- FIG. 6 represents a view from above of a sheet material according to another embodiment of the invention.
- FIG. 7 shows a top view of a bank note obtained by a method according to the invention.
- FIGS. 4 to 6 a single elongated zone of zero thickness of the first jet of leaf, surrounded by two areas of fibrous material.
- Figure 1 is a diagram illustrating the various steps of an embodiment of the manufacturing method according to the invention.
- a first jet 2 having elongate zones of zero thickness 4 is produced from an aqueous suspension of cellulose fibers, by means of a first round shape R1 on the fabric of which M. in this way, the fibrous suspension is deposited only in the regions devoid of masks M.
- a continuous strip of a transparent plastic 10, not shown is inserted in the first jet at the level of the masks M, this strip continues being wider than the masks.
- the first jet 2 thus formed is fed to a second round shape R2 in order to be deposited on the second fibrous jet 5 in formation.
- the second jet 5 is formed on the fabric of the second round shape, on which elements have been fixed which prevent filtration of the suspension.
- the elements are placed at positions marked so that they form recesses 6 in correspondence with the positions of the elongate zones of zero thickness 4 of the first jet 2.
- the first jet 2 is deposited on the second jet 5.
- a bijet sheet is obtained which can then receive a surface treatment or impregnation, for example of reinforcing the surface with PVA and / or resistance to soiling or even improvement of printability, in particular by means of a gluing press or an impregnator.
- This sheet is then dried and wound according to usual procedures.
- FIG. 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 jet 2 is formed on a round machine R1.
- a continuous strip made of a transparent plastic material 10 is brought into contact with the first fibrous jet in formation 2.
- the continuous strip 10 is placed in such a way that its center is situated at a mask M and its edges in contact with the fibers are depositing on areas devoid of the round shape Rl.
- FIG. 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 jet 2 of said sheet material 1 comprises elongate zones of zero thickness 4 and fibrous regions including total lack of material 8.
- the fabric T of the first round shape R1 comprises rectangular masks in an adhesive film M, laid on so as to extend, at regular intervals, over the entire perimeter of the round shape R1.
- the fiber suspension is not deposited, and the first fibrous jet 2 will have areas of zero thickness 4
- the first round shape R1 further comprises rectangular pieces of metal P deposited on the fabric T, between two adjacent masks M. These pieces P prevent filtration of the fiber suspension, and therefore of any fibrous deposition, so that the fibrous regions 3 of the first jet 2 have total material shortages.
- FIG. 4 and FIG. 5 illustrate a sheet material obtained according to one embodiment of the method of the invention, the extra thicknesses in areas of zero thickness 4 being intentionally exaggerated.
- the sheet material 1 consists of two streams of fibrous material.
- the first fibrous material jet 2 has an alternation of elongated areas of material fibrous 3 and elongated areas of zero thickness 4 in which strips 10 are arranged in a transparent plastic material, for example a polyester, the edges of said strips 10 being inserted into the elongate zones of fibrous material 3 of said first jet 2.
- second jet of fibrous material 5 has a plurality of rectangular recesses 6 situated opposite an elongated zone of zero thickness 4 of the first jet 2.
- the first and the second jets have different thicknesses, the first jet 2 having a thickness of 40 ⁇ m and the second jet having a thickness of 70 ⁇ m.
- the second stream of fibrous material 5 has a plurality of circular recesses 6 facing an elongate zone of zero thickness 4 of the first jet 2.
- the transparent strip 10 has the same thickness as the elongate zone of zero thickness 4 in which is inserted, so that the face of the sheet is almost flat.
- Fig. 6 illustrates a sheet material obtained according to an embodiment in which the sheet material 1 comprises a first jet 2 and a second jet 5 of fibrous material.
- the first fibrous material jet 2 comprises elongate areas of zero thickness 4 in which strips of transparent plastic material 10 are arranged, areas of fibrous material 7 having gaps 8 of rectangular shape extending the entire width of said areas of fibrous material, as well as fibrous regions 3 lacking gaps.
- the second jet 5 has a plurality of rectangular recesses 6 facing an elongate zone of zero thickness 4 of the first jet.
- FIG. 7 illustrates a banknote 11 obtained by a method according to the invention, which comprises a sheet material 9 shown in FIGS. 4 and 5 and a watermark 12 made in the second jet 5.
- the invention is not limited to the implementation examples which have just been described. The characteristics of the various examples described can in particular be combined within non-illustrated variants.
Landscapes
- Paper (AREA)
- Laminated Bodies (AREA)
Abstract
Description
Claims
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 true EP2173946A2 (fr) | 2010-04-14 |
EP2173946B1 EP2173946B1 (fr) | 2013-09-04 |
EP2173946B2 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 (fr) |
EP (1) | EP2173946B2 (fr) |
CN (1) | CN101743359A (fr) |
BR (1) | BRPI0813542B1 (fr) |
CA (1) | CA2692479A1 (fr) |
ES (1) | ES2436144T5 (fr) |
FR (1) | FR2918680B1 (fr) |
PL (1) | PL2173946T5 (fr) |
RU (1) | RU2482234C2 (fr) |
WO (1) | WO2009022071A2 (fr) |
Families Citing this family (8)
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 (fr) * | 2006-10-27 | 2017-10-04 | Crane & Co., Inc. | Document sécurisé résistant aux salissures et/ou à l'humidité |
FR2953965B1 (fr) * | 2009-12-14 | 2011-11-25 | Arjowiggins Security | Element de securite comportant une structure optique |
WO2012043527A1 (fr) * | 2010-09-28 | 2012-04-05 | 凸版印刷株式会社 | Livret doté d'une fonction anti-contrefaçon et procédé de production de celui-ci |
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 |
CN111819325B (zh) | 2018-01-05 | 2023-05-12 | 国际纸业公司 | 具有增加的弯曲刚度和横向强度的纸产品及其制造方法 |
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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 S.A., Issy-Les-Moulineaux | 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 |
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2007
- 2007-07-11 FR FR0756415A patent/FR2918680B1/fr not_active Expired - Fee Related
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2008
- 2008-07-11 CN CN200880024120A patent/CN101743359A/zh active Pending
- 2008-07-11 ES ES08827310T patent/ES2436144T5/es active Active
- 2008-07-11 EP EP08827310.7A patent/EP2173946B2/fr active Active
- 2008-07-11 US US12/666,747 patent/US20100207377A1/en not_active Abandoned
- 2008-07-11 RU RU2010104171/12A patent/RU2482234C2/ru active
- 2008-07-11 WO PCT/FR2008/051318 patent/WO2009022071A2/fr active Application Filing
- 2008-07-11 PL PL08827310.7T patent/PL2173946T5/pl unknown
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- 2008-07-11 CA CA 2692479 patent/CA2692479A1/fr not_active Abandoned
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Also Published As
Publication number | Publication date |
---|---|
FR2918680B1 (fr) | 2009-10-16 |
EP2173946B1 (fr) | 2013-09-04 |
BRPI0813542A2 (pt) | 2014-12-23 |
CN101743359A (zh) | 2010-06-16 |
CA2692479A1 (fr) | 2009-02-19 |
PL2173946T5 (pl) | 2023-06-05 |
WO2009022071A3 (fr) | 2009-04-09 |
RU2010104171A (ru) | 2011-08-20 |
EP2173946B2 (fr) | 2020-07-22 |
RU2482234C2 (ru) | 2013-05-20 |
ES2436144T5 (es) | 2021-04-06 |
WO2009022071A2 (fr) | 2009-02-19 |
PL2173946T3 (pl) | 2014-01-31 |
US20100207377A1 (en) | 2010-08-19 |
ES2436144T3 (es) | 2013-12-27 |
BRPI0813542B1 (pt) | 2019-01-15 |
FR2918680A1 (fr) | 2009-01-16 |
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