EP1516089B1 - Aus mindestens einem faserstoffstrahl ausgeformter gegenstand mit mindestens einer zone der dicke null und sein herstellungsverfahren - Google Patents

Aus mindestens einem faserstoffstrahl ausgeformter gegenstand mit mindestens einer zone der dicke null und sein herstellungsverfahren Download PDF

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Publication number
EP1516089B1
EP1516089B1 EP03752843.7A EP03752843A EP1516089B1 EP 1516089 B1 EP1516089 B1 EP 1516089B1 EP 03752843 A EP03752843 A EP 03752843A EP 1516089 B1 EP1516089 B1 EP 1516089B1
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EP
European Patent Office
Prior art keywords
fibrous material
ply
region
article
layer
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.)
Revoked
Application number
EP03752843.7A
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English (en)
French (fr)
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EP1516089A2 (de
Inventor
Pierre Doublet
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ArjoWiggins Security SAS
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ArjoWiggins Security SAS
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Application filed by ArjoWiggins Security SAS filed Critical ArjoWiggins Security SAS
Publication of EP1516089A2 publication Critical patent/EP1516089A2/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
    • D21H27/02—Patterned paper
    • 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.]
    • Y10T428/24479—Structurally defined web or sheet [e.g., overall dimension, etc.] including variation in thickness
    • 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.]
    • Y10T428/24479—Structurally defined web or sheet [e.g., overall dimension, etc.] including variation in thickness
    • Y10T428/24612—Composite web or sheet

Definitions

  • the present invention relates to an article comprising a fibrous layer and a structure at least partially transparent or translucent, and the method of manufacturing said article.
  • the invention relates more particularly to the manufacture of security papers in general, comprising a transparent window.
  • the patent US4462866 discloses a sheet having an elongate member (a wire) inserted into said sheet, said member being exposed at least partially in windows on the surface of the sheet. It is provided that a film or a liquid material such as a varnish, called “overlay”, can be affixed to the exposed parts of the wire so as to protect them.
  • This technique involves embossing two strips of paper in the course of formation, using relief parts integrated into the fabric of a paper machine of round shapes, these reliefs being high enough to prevent the deposition of fibers paper mills in some places of the paper tape. This results in a through hole for the paper. Then, two fibrous layers are joined so as to put the hole of a fibrous layer opposite to that of the other layer, the plastic film passing over the superimposed holes. This results in a transparent window in the paper.
  • One of the disadvantages is that the film sandwiched in the paper structure can cause deformations of the sheet. As the sheet is no longer flat, the paper loses on the one hand in aesthetics and on the other hand is difficult to print and / or stack.
  • the patent application EP773320 describes a sheet of paper comprising a band placed inside the sheet, in particular as described in the document WO95 / 09274 mentioned above, and combined with a watermark for the sheet to have a substantially constant thickness.
  • the patent application FR2764314 discloses a sheet having at least one transparent or translucent window, in particular the window can be made by inserting a strip between two sheets, in particular as described in the document WO95 / 09274 mentioned above, the window can cooperate with an element carried on the rest of the sheet when folded to create an authentication.
  • This prior art has the same disadvantages as the patent EP690939 or the request WO95 / 09274 .
  • One of the aims of the invention is therefore to eliminate the disadvantages of the prior art as mentioned above.
  • the Applicant proprose no longer apply transparent plastic film inside two fibrous layers, but deposit a structure at least partially transparent or translucent, including a plastic film transparent, a tracing paper or a printed patch having a transparent window, directly on the fibrous layer at the location of the hole formed in the fibrous layer by embossing so as to hide the ill-formed edges of the hole with the aid of opaque portions present previously or deposited laterally on the applied structure and surrounding an area at least partially transparent or translucent thereof.
  • a structure at least partially transparent or translucent including a plastic film transparent, a tracing paper or a printed patch having a transparent window
  • Another solution envisaged by the Applicant is to form the hole in the fibrous layer with a cutting device downstream of the formation of the fibrous layer, so as to avoid the appearance of the phenomenon of "barbs", and then covering this hole with a structure at least partly transparent or translucent, this structure may be for example a transparent plastic film, a tracing paper or a printed patch comprising a plastic window.
  • the invention relates firstly to an article formed from at least one jet of fibrous material having at least one zone of zero thickness, characterized in that said zone is covered on at least one of its faces. by a structure at least partially transparent or translucent, arranged to reveal a transparent or translucent window in the paper.
  • the aforementioned structure is covered with an opacifying substance so as to hide the edges of the hole formed in the fibrous material.
  • This opacifying substance may be chosen from printing inks, liquid crystals, metal particles, magnetic particles, thermochromic substances and iridescent substances.
  • the structure at least partially transparent or translucent may be a tracing paper, a transparent plastic film or a printed patch comprising a plastic window.
  • the dimensions thereof must be greater than the hole formed in the fibrous material, so that the edges of the hole formed in the fibrous material are hidden by the patch, the edges of the window transparent patch being disposed above the empty space left by the hole formed in the fibrous material.
  • the at least partly transparent or translucent structure in particular a plastic film, a tracing paper, or a patch, a substance selected from metal particles, magnetic particles, thermochromic substances, iridescent substances, liquid crystals or mixtures thereof.
  • Another way of securing said article will also be to apply a diffraction element on said at least partially transparent or translucent structure so as to create a security hologram, which would prevent all the fraudulent copies of the article by reprography by example.
  • the hole of the transparent window can also be used to place thick elements, of the order of 100 microns to the thickness of the article.
  • Such elements may be, for example, printed circuits, microprocessors, electronic chips, magnetic elements, metal elements, plastic elements, detection devices emitting a signal when they are placed in a suitable electromagnetic or light field.
  • an antenna may be deposited at the same time and coupled to the circuit on the element at least partially translucent or transparent.
  • These elements may also be thick so as to allow recognition of the document by blind people because of the difference in thickness created.
  • the invention similarly relates to the method of manufacturing said article described below.
  • the structure may comprise at least one of the following elements: a holographic and / or diffractive element, a magnetic, metallic or crystalline coating, liquid crystals, an impression of a varnish or ink, iridescent pigments, thermochromic and / or piezochromic pigments, at least one reflecting surface.
  • the structure will be composed of a single layer or at least two layers, one of which is a carrier layer to be removed upon transfer of the structure to the sheet.
  • the carrier layer may comprise a plurality of portions of film or fibrous material arranged so that after their transfer on the sheet, these portions are spaced apart from each other on the surface of the sheet.
  • the deposition of the structure at least partly transparent or translucent may be done by hot transfer or cold at the location of the hole on the front and / or back of the fibrous layer, or by against hot or cold gluing on the front and / or back of the fibrous layer.
  • the hole may be formed either with an embossing roll during the wet phase of the fibrous layer, or with a mechanical cutting device or laser cutting.
  • the article may then be printed or covered with a security substance selected from metal particles, magnetic particles, thermochromic substances, iridescent substances, liquid crystals.
  • a security substance selected from metal particles, magnetic particles, thermochromic substances, iridescent substances, liquid crystals.
  • At least one thick element may be placed on the front and / or back of the at least partially transparent or translucent structure, the thick element being chosen from printed circuits, microprocessors, electronic chips, elements magnetic elements, metal elements, plastic elements, detection devices emitting a signal in the presence of a suitable electromagnetic or light field.
  • FIGS. 1A and 1B a carrier (1) formed of a single fibrous jet, having a through-hole (2) in its surface, formed by means of an embossing roll during wet formation of the sheet.
  • the fibrous layer (1) is made from cellulose fibers which may optionally contain synthetic or artificial fibers.
  • Edges of the hole protrude "barbs", pieces of fibers still partially attached to the rest of the fibrous layer and isolated therefrom during the embossing of the hole.
  • FIG. 2A and 2B a support (1) formed of a single fibrous jet having a through hole (2) in its surface, formed with a laser, following the formation of the fibrous layer.
  • edges of the hole are straight, regular.
  • the transparent window can be easily obtained for this paper by covering the fibrous layer at the hole with a transparent plastic film 3 on the front as shown in the drawings.
  • Figures 2A and 2B are a transparent plastic film 3 on the front as shown in the drawings.
  • FIGS. 3A and 3B represent a particular configuration of the invention, in which the single-jet fibrous layer (1) has been perforated by embossing, with appearance of "barbs".
  • the said film is then covered with an opacifying substance (4) which, here, consists of ink on an area surrounding the hole, so as on the one hand to hide the barbs and on the other hand to leave a transparent area inside the covered hole.
  • an opacifying substance (4) which, here, consists of ink on an area surrounding the hole, so as on the one hand to hide the barbs and on the other hand to leave a transparent area inside the covered hole.
  • FIGS. 4A and 4B show a variant of the invention in which a transparent film (3) is applied to the back and a patch (5) opaque to the front so as to cover the hole, the patch nevertheless having a cut in the middle.
  • the area covered by the cutting of the patch is placed so as to hide the "barbs" of the fibrous layer.
  • the transparent film itself carries an electronic chip (6) on its surface, it was necessary to fit the chip inside the hole so as to avoid an extra thickness in the article.
  • the film (3) consists only of a single layer of transparent plastic material, for example polyester.
  • the carrier layer (10) has a thickness of about 12 microns and the cumulative thickness of the layers (11) to (14) is about 2 to 3 microns.
  • the layers (12), (13) and (14) form a film (3 ") to be transferred onto the sheet (1).
  • the structure (3 ') is also called “foil” and it allows to assemble the film (3 ") with the sheet (1), for example by hot pressing, operation during wherein the release layer (11) melts and allows separation of the carrier layer (10) from the other layers.
  • the heat provided during this operation also causes the activation of the adhesive layer (14), in order to heat-seal the film (3 ") on the sheet (1).
  • the metal layer (13), made of aluminum, for example, may have a surface appearance to reflect light through the layer of colored varnish (12), thereby creating a color effect on the surface of the article.
  • the layer (12) may have a hologram consisting of a diffraction grating.
  • the latter can be produced by means of a matrix of a transfer machine for transferring the film (3 ") onto the sheet (1), alternatively, the hologram can be produced before the layer is assembled ( 12) with the other layers.
  • the metal layer (13) can be replaced by a plastic layer.
  • the film (3) or (3 ") can completely cover or not a face of the article.
  • the film (3) or (3 ") can extend continuously or not between two opposite edges of the article.
  • the film (3) or (3 ") can form a patch on the article.
  • the first machine (35) comprises a tank (37) containing a suspension of fibers, for example cellulose fibers, in which is partially immersed a rotating roll cylinder (38) defining a surface (39) in contact with which is formed continuously a jet of paper (40) taken by a pick-up felt (42).
  • the surface (39) has embossing in relief, so as to create in the first jet (40) through holes.
  • the second machine (36) comprises, like the machine (35), a tank (37), a rotating fabric cylinder (44) defining a surface (47) in contact with which forms a second jet of paper .
  • the surface (47) of the web roll (44) has a raised embossing so as to create holes (46) in the second jet, the holes (46) being arranged to overlap with the holes (45) of the web first jet during the assembly of the two jets, obtained during the passage of the two jets between the round shape (44) and a rotary cylinder (48).
  • the sheet can be cut later to the format of the article to be produced.
  • the cavity can be made by other means, for example using a laser or mechanical abrasion.
  • FIG 7 schematically shows the assembly by laminating a film (3) and a fibrous layer (1) by passage between two rotary cylinders (50) and (51).
  • the film (3) is previously brought into contact with a gluing machine (53).
  • the film (12), (13), (14) can be transferred, for example hot, onto the sheet (1), as illustrated in FIGS. Figures 7 and 8 .
  • the sheet (1) and the structure (3 ') can be driven with the carrier layer (10), (11) moving in the same direction by means of a machine comprising a first rotary cylinder. (55) carrying dies (56) and a second rotating cylinder (57).
  • the film (12), (13), (14) and the sheet (1) can be assembled when passing between the cylinders (55) and (57).
  • the film (12), (13), (14) can also be fed between a matrix (56) and the sheet (1) in a direction generally transverse to the displacement of the sheet, as described in the European patent. EP 0 473 635 .
  • Each through cavity can be closed on one side only by a film, or on both sides by two films.
  • Each through cavity can also be closed on one side by a film and on the other by a fibrous layer.
  • the layer of the structure carrying the element may be based on fibrous material.

Landscapes

  • Credit Cards Or The Like (AREA)
  • Laminated Bodies (AREA)
  • Dry Formation Of Fiberboard And The Like (AREA)
  • Wrappers (AREA)
  • Printing Methods (AREA)

Claims (21)

  1. Aus wenigstens einem Fasermaterialstrom (1) gebildeter Gegenstand mit wenigstens einem transparenten oder transluziden Fenster, dadurch gekennzeichnet, dass der Strom (1) wenigstens eine Zone der Dicke null (2) aufweist, wobei die Zone (2) auf wenigstens einer ihrer Seiten mit einer Struktur (3, 5) abgedeckt ist, die wenigstens teilweise transparent oder transluzid ist, und die derart angeordnet ist, dass sie das transparente oder transluzide Fenster in dem Fasermaterialstrom erkennen lässt, wobei die Struktur (3, 5) mit einer Decksubstanz (4) so abgedeckt ist, dass sie die Ränder der in dem Fasermaterial (1) gebildeten Zone der Dicke null (2) verbirgt.
  2. Gegenstand nach Anspruch 1, dadurch gekennzeichnet, dass die Decksubstanz (4) ausgewählt ist aus Drucktinten, Flüssigkristallen, Metallteilchen, Magnetteilchen, thermochromen Substanzen und schillernden Substanzen.
  3. Gegenstand nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass die Struktur (3) ein transparenter Kunststofffilm ist.
  4. Gegenstand nach einem der Ansprüche 1 bis 2, dadurch gekennzeichnet, dass die Struktur (3) ein Pauspapier ist.
  5. Gegenstand nach Anspruch 1, dadurch gekennzeichnet, dass die Struktur ein bedruckter Aufkleber mit einem Ausschnitt ist.
  6. Gegenstand nach Anspruch 5, dadurch gekennzeichnet, dass der Aufkleber (5) größere Abmessungen aufweist als die in dem Fasermaterial (1) gebildete Zone der Dicke null (2), so dass die Ränder der in dem Fasermaterial gebildeten Zone der Dicke null durch den Aufkleber verborgen sind und die Ränder des Ausschnitts des Aufklebers über dem Leerraum angeordnet sind, der in der in dem Fasermaterial gebildeten Zone der Dicke null frei bleibt.
  7. Gegenstand nach Anspruch 6, dadurch gekennzeichnet, dass der Aufkleber (5) mit einer Sicherheitssubstanz überdeckt ist, die ausgewählt ist aus Metallteilchen, Magnetteilchen, thermochromen Substanzen, schillernden Substanzen, Flüssigkristallen und Mischungen davon.
  8. Gegenstand nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass die wenigstens teilweise transparente oder transluzide Struktur (3, 5) ein Sicherheitshologramm darstellt.
  9. Gegenstand nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass er einen Gegenstand darstellt, der ausgewählt ist aus einer Banknote, einem Sicherheitspapier, einem Geschenkgutschein, einem Wertdokument, einem Coupon, einem Etikett zum Schutz einer Marke oder eines Produkts, und einem Etikett zur Rückverfolgbarkeit.
  10. Verfahren zum Herstellen eines Gegenstands gemäß einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass in dem Verfahren:
    - wenigstens ein Fasermaterialstrom (1) gebildet wird,
    - eine Zone der Dicke null (2) in dem Fasermaterial realisiert wird,
    - die wenigstens teilweise transparente oder transluzide Struktur (3, 5) an der Stelle der Zone der Dicke null auf der Vorder- und/oder Rückseite des Fasermaterialstroms angeordnet wird, so dass sich ein transparentes oder transluzides Fenster in dem Gegenstand erkennen lässt.
  11. Verfahren nach Anspruch 10, dadurch gekennzeichnet, dass die Struktur (3, 5) wenigstens eines der folgenden Elemente aufweist: ein holographisches und/oder diffraktives Element, eine magnetische, metallische oder kristalline Auflage, Flüssigkristalle, einen Aufdruck aus Lack oder Tinte, schillernde Pigmente, thermochrome und/oder piezochrome Pigmente, eine reflektierende Oberfläche.
  12. Verfahren nach einem der Ansprüche 10 und 11, dadurch gekennzeichnet, dass die Struktur einen Film aus Kunststoffmaterial, insbesondere Polyester, aufweist.
  13. Verfahren nach einem der Ansprüche 10 bis 12, dadurch gekennzeichnet, dass die Struktur aus einer einzigen Schicht zusammengesetzt ist.
  14. Verfahren nach einem der Ansprüche 10 bis 12, dadurch gekennzeichnet, dass die Struktur wenigstens zwei Schichten aufweist, von denen eine eine Trägerschicht ist, die nach der Übertragung der Struktur auf den Fasermaterialstrom eliminiert wird.
  15. Verfahren nach Anspruch 14, dadurch gekennzeichnet, dass die Trägerschicht mehrere Bereiche aus einem Film oder einem Fasermaterial aufweist, die so angeordnet sind, dass die Bereiche nach ihrer Übertragung auf den Fasermaterialstrom einen Abstand voneinander auf der Oberfläche des Fasermaterialstroms aufweisen.
  16. Verfahren nach einem der Ansprüche 14 und 15, dadurch gekennzeichnet, dass der Fasermaterialstrom mit einer Struktur (3') in Kontakt gebracht wird, die anfangs wenigstens die folgenden Schichten aufweist:
    - eine Trägerschicht (10),
    - eine Befreiungsschicht (11),
    - optional eine Lackschicht (12), die ein Harz und optional ein Färbemittel aufweist,
    - eine Schicht aus Metall (13), Kunststoffmaterial oder Fasermaterial,
    - eine Klebeschicht (14).
  17. Verfahren nach einem der Ansprüche 14 bis 16, dadurch gekennzeichnet, dass die Ablage der wenigstens teilweise transparenten oder transluziden Struktur (3, 5) durch Warm- oder Kaltübertragung zur Anordnung der Zone der Dicke null auf der Vorderund/oder Rückseite der Faserschicht (1) erfolgt.
  18. Verfahren nach einem der Ansprüche 10 bis 12, dadurch gekennzeichnet, dass die Ablage der wenigstens teilweise transparenten oder transluziden Struktur (3, 5) durch warmes oder kaltes Aufkaschieren auf der Vorder- und/oder Rückseite des Fasermaterialstroms (1) erfolgt.
  19. Verfahren nach einem der Ansprüche 10 bis 18, dadurch gekennzeichnet, dass die Zone der Dicke null (2) mittels einer Prägewalze (38, 44) unter Nassformung des Fasermaterialstroms (1) gebildet wird.
  20. Verfahren nach einem der Ansprüche 10 bis 18, dadurch gekennzeichnet, dass die Zone der Dicke null (2) durch ein mechanisches Schneidwerkzeug oder einen Laserschneider gebildet wird.
  21. Verfahren nach einem der Ansprüche 10 bis 20, dadurch gekennzeichnet, dass wenigstens ein dickes Element (6) auf der Vorder- und/oder Rückseite der Struktur angeordnet ist, wobei das dicke Element ausgewählt ist aus gedruckten Schaltungen, Mikroprozessoren, Elektronikchips, Magnetelementen, Metallelementen, Kunststoffelementen, Detektionsvorrichtungen, die bei Vorhandensein eines elektromagnetischen Felds oder entsprechender Helligkeit ein Signal aussenden.
EP03752843.7A 2002-05-22 2003-05-21 Aus mindestens einem faserstoffstrahl ausgeformter gegenstand mit mindestens einer zone der dicke null und sein herstellungsverfahren Revoked EP1516089B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR0206190A FR2839917B1 (fr) 2002-05-22 2002-05-22 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
FR0206190 2002-05-22
PCT/FR2003/001528 WO2003097937A2 (fr) 2002-05-22 2003-05-21 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

Publications (2)

Publication Number Publication Date
EP1516089A2 EP1516089A2 (de) 2005-03-23
EP1516089B1 true EP1516089B1 (de) 2014-04-16

Family

ID=29414959

Family Applications (1)

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EP03752843.7A Revoked EP1516089B1 (de) 2002-05-22 2003-05-21 Aus mindestens einem faserstoffstrahl ausgeformter gegenstand mit mindestens einer zone der dicke null und sein herstellungsverfahren

Country Status (7)

Country Link
US (1) US7632380B2 (de)
EP (1) EP1516089B1 (de)
AU (1) AU2003255588A1 (de)
BR (1) BR0304881B1 (de)
CA (1) CA2486154C (de)
FR (1) FR2839917B1 (de)
WO (1) WO2003097937A2 (de)

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Publication number Publication date
FR2839917A1 (fr) 2003-11-28
WO2003097937A3 (fr) 2004-03-11
AU2003255588A1 (en) 2003-12-02
US20050173084A1 (en) 2005-08-11
FR2839917B1 (fr) 2004-10-08
BR0304881B1 (pt) 2013-11-26
CA2486154A1 (fr) 2003-11-27
EP1516089A2 (de) 2005-03-23
BR0304881A (pt) 2004-08-03
WO2003097937A2 (fr) 2003-11-27
CA2486154C (fr) 2011-03-29
US7632380B2 (en) 2009-12-15

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