EP1917396B1 - Blattmaterial und herstellungsverfahren dafür - Google Patents

Blattmaterial und herstellungsverfahren dafür Download PDF

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Publication number
EP1917396B1
EP1917396B1 EP06794526.1A EP06794526A EP1917396B1 EP 1917396 B1 EP1917396 B1 EP 1917396B1 EP 06794526 A EP06794526 A EP 06794526A EP 1917396 B1 EP1917396 B1 EP 1917396B1
Authority
EP
European Patent Office
Prior art keywords
strip structure
process according
strip
fibrous layer
protruding portion
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.)
Not-in-force
Application number
EP06794526.1A
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English (en)
French (fr)
Other versions
EP1917396A2 (de
Inventor
Henri Rosset
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
Application filed by Oberthur Fiduciaire SAS filed Critical Oberthur Fiduciaire SAS
Publication of EP1917396A2 publication Critical patent/EP1917396A2/de
Application granted granted Critical
Publication of EP1917396B1 publication Critical patent/EP1917396B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • D21H21/42—Ribbons or strips

Definitions

  • the present invention relates to a sheet material and its manufacturing process.
  • patent application EP 0 059 056 a method for making paper on a round-shaped paper machine comprising a rotary canvas cylinder having embossings at regular intervals, in the direction of paper formation.
  • a safety wire is pressed against the rotary fabric cylinder before immersion in the fiber suspension contained in the tank.
  • pressing and drying steps make it possible to obtain windows on one side of the paper in which the security thread is visible.
  • the process described in this application EP 0 059 056 is suitable for security wires of relatively small width.
  • the pattern of the windows formed on the paper depends on the machines used for its manufacture so that it is difficult to obtain patterns as varied as desired.
  • the patent application GB 2,388,377 describes a method for manufacturing a fibrous substrate incorporating an elongated security element.
  • the latter is incorporated into the fibrous mass during the formation of the paper in contact with a paper machine with a round shape comprising a rotary fabric cylinder provided with projecting portions for making windows in which the security element is exposed.
  • the patent application GB 2,381,539 describes a method for incorporating an elongated element into a paper, using a round-shape paper machine having two sets of projecting portions of different dimensions.
  • the patent EP-B1-690 939 (corresponding to the request WO 95/09274 ) describes a security paper comprising two layers of paper (also called jets) each with a plurality of windows arranged in line with windows of the other layer of paper.
  • the paper can incorporate a transparent polyester strip arranged between the two layers so as to be visible through the windows.
  • the strip is not immersed in the dispersion of fibrous material but introduced between the two paper jets before their assembly outside the respective baths.
  • Requirement WO 2004/040062 describes a strip security element intended to be partially integrated into a fibrous substrate, comprising one or more windows leaving visible portions of the security element.
  • the invention aims to propose a new method of manufacturing a sheet material by the papermaking process, comprising at least one fibrous layer having two opposite faces with on each of its faces at least one window.
  • sheet material can denote in the description and the claims a fibrous sheet based on cellulosic and / or synthetic fibers, composite or not.
  • a sheet material can for example have a relatively small thickness, in particular less than or equal to 3 mm, for example equal to approximately 100 ⁇ m, and be flexible.
  • the sheet material can be packaged on a reel, in particular before being cut to the desired format.
  • the surface can be defined by the forming fabric of a machine with a round shape or with a flat table, a machine with a round shape being preferred.
  • the invention makes it possible to obtain windows of various shapes and / or sizes, simply by modifying the shape and / or the size of the raised portions of the strip structure which serve to form the windows of the fibrous layer.
  • Fibrous layers with different windows from one layer to another can easily be produced on the same paper machine, for example on a machine with a round shape.
  • the fibrous layer is preferably a monojet layer (“ single ply ” in English).
  • a raised portion of the strip structure can be flush with the corresponding face of the fibrous layer or, as a variant, protrude from this face of the fibrous layer and form an excess thickness sufficient to be detectable by touch in particular.
  • the raised portion of the strip structure has an at least partially hydrophobic outer surface, so as to prevent the covering of the raised portion by fibers during the formation of the fibrous layer.
  • the strip structure comprises at least one crenellated strip element defining at least one raised portion of the strip structure.
  • the crenellated strip element comprises at least one niche produced in particular by embossing, for example by thermal embossing.
  • the crenellated strip element can be made for example of plastic, in particular a hydrophobic plastic.
  • the strip structure comprises a strip support element with at least one face covered at least partially, for example totally, with a coating having a thickness chosen to form the portion in relief of the band structure.
  • the coating preferably hydrophobic, can be deposited for example by screen printing.
  • the coating can be a varnish, for example a crosslinkable varnish under UV or infrared radiation, or by exposure to an electron beam.
  • one of the faces of the strip structure has no raised portion serving to form a window on one face of the fibrous layer.
  • the strip structure may for example comprise a first flat strip element and a second crenellated strip element assembled with the first, in particular with heat input.
  • the strip structure comprises a strip support element of which only one face is at least partially covered with a coating having a thickness chosen to form the raised portion of the strip structure.
  • the strip structure can be porous, in particular the strip support element.
  • the strip structure may have openings, which may have a section of between 3 mm 2 and 30 mm 2 .
  • the area occupied by the openings can be greater than or equal to 40% of the total area of the strip structure seen from above, better greater than or equal to 50% and less than or equal to 60%.
  • the strip structure can include a perforated strip support element and the raised portion can be attached to the strip support element.
  • the raised portion can be formed by a coating, in particular one or more impressions of a varnish or by an adhesive film transferred hot or cold.
  • the raised portion can create an additional thickness ranging from 10 ⁇ m to 50 ⁇ m, preferably from 25 to 35 ⁇ m, on the surface of the strip structure.
  • the strip structure may include at least one cavity in which an object, in particular a security element, is arranged at least partially.
  • the object can be an electronic chip or a layer of liquid crystals.
  • the cavity can be produced in a strip support element, the object being partially covered, on at least one side, by an element at least partially defining the raised portion.
  • the object can be covered on both sides by elements defining raised portions of the strip structure.
  • the surface of the fabric forming the the fibrous layer advantageously comprises at least one hollow zone adjacent to at least one protruding zone arranged to form on the fibrous layer at least one window.
  • the recessed and projecting areas of the surface of the fabric forming the fibrous layer can in particular be produced by embossing.
  • the strip structure can be brought against the surface of the fabric forming the fibrous layer so as to make the raised portion of the strip structure coincide with a hollow area of said surface so as to form on each face of the layer fibrous a window arranged offset from the window on the other side.
  • the strip structure is brought against the surface of the fabric forming the fibrous layer so as to make the raised portion of the strip structure coincide with a projecting area of said surface so as to form on each face of the fibrous layer a window opposite the window on the other side.
  • the strip structure comprises on each of its opposite faces at least one raised portion serving to form on each of the opposite faces of the fibrous layer at least one window.
  • the raised portions on the opposite faces of the strip structure can be opposite one another or, alternatively, arranged offset from one another, so as to form on the faces opposite of the fibrous layer, as the case may be, facing windows or offset windows.
  • the strip structure comprises first and second crenellated strip elements, forming raised portions on the two opposite faces of the strip structure.
  • the band structure may include a third, flat band element sandwiched between the first and second crenellated band elements.
  • the opposite faces of the aforementioned strip support element are each covered with a coating having a thickness chosen to form a raised portion.
  • the raised portion on the face of the strip structure coming opposite the surface for forming the fibrous layer has a thickness greater than that of the raised portion on the other face of the strip structure, which promotes the entanglement of the fibers on the side of the surface for forming the fibrous layer.
  • the strip structure comprises a single crenellated strip element used to form windows on the two opposite faces of the fibrous layer.
  • the crenellated strip element is arranged in such a way that the slots do not undergo untimely deformation when the strip structure is subjected to tension stresses during the introduction of the strip structure into the layer. fibrous and / or during the formation thereof.
  • the fibrous layer can be produced on a round-shaped paper machine, as mentioned above, and be subjected, if necessary, to at least one of the pressing, calendering and drying operations.
  • At least one of the raised portions of the strip structure may have a shape defining a pattern, chosen in particular from a letter of the alphabet, a number, or a logo, this list not being limiting.
  • At least one of the raised portions has a rectangular, square or circular shape.
  • the strip structure may comprise on a face a plurality of raised portions, in particular identical and regularly spaced.
  • the strip structure comprises on a face a plurality of raised portions, at least two of which have different shapes and / or sizes.
  • the strip structure comprises at least one security element chosen from: an element with variable and / or diffractive optical effect such as for example a holographic, iridescent or liquid crystal element, interference compounds, a magnetic or crystalline coating, magnetic fibers, tracers detectable by magnetic resonance, tracers detectable by X-ray fluorescence, printing of a varnish or ink, luminescent or fluorescent tracers, photochromic, thermochromic compounds , electroluminescent and / or piezochromic and / or which change color in contact with one or more predetermined products, compounds sensitive to microwave radiation, anti-stock compounds.
  • an element with variable and / or diffractive optical effect such as for example a holographic, iridescent or liquid crystal element, interference compounds, a magnetic or crystalline coating, magnetic fibers, tracers detectable by magnetic resonance, tracers detectable by X-ray fluorescence, printing of a varnish or ink, luminescent or fluorescent tracers, photochromic, thermochromic compounds , electrolumin
  • the strip structure may comprise, if necessary, a strip support element at least partially covered with a coating, in particular a varnish, incorporating one or more security elements chosen in particular from the aforementioned security elements.
  • the coating may include compounds having an effect on the polarization of light, in particular compounds of the nematic liquid crystal type.
  • the strip structure comprises, at least on one face, at least two raised portions serving to form two windows of the fibrous layer, these raised portions having properties, in particular optical , physical and / or chemical, different.
  • the two raised portions may for example have different colors or different magnetic properties.
  • one of the raised portions can be produced for example from a magnetic material and the other from a material incorporating interference pigments.
  • the strip structure can, if desired, comprise a partially metallized layer, a metallized layer, or a layer of locally demetallized metal.
  • the strip structure comprises, on one face, at least one main raised portion serving to form a main window on one face of the fibrous layer and at least one additional raised portion having in particular a thickness and / or an area less than or equal to that of the main relief portion and arranged to compensate for a variation in thickness of the strip structure, in the vicinity of the main relief portion.
  • the additional raised portion may have a thickness and an area less than that of the main portion and be entirely embedded in the fibrous layer.
  • a sheet material comprising at least one single-jet fibrous layer, that is to say a single fibrous jet formed alone on the formation surface from a fiber-based dispersion, having two opposite faces with at least one window on each of its faces, the sheet material further comprising at least one strip structure embedded at least partially in the fibrous layer, the strip structure comprising at least one raised portion, the shape of at least one of the windows being defined by the raised portion , the latter coming for example flush with a face of the fibrous layer or projecting therefrom.
  • the fibrous layer is advantageously devoid of at least one of its indentation faces, in particular of the type produced using recessed areas and projecting from a fabric forming a paper machine, located at the right of the band structure.
  • the sheet material can initially be devoid of printing an ink and can, if necessary, receive one later in order to include the useful information.
  • the windows on the opposite faces of the fibrous layer can be arranged facing one another or, as a variant, offset one with respect to the other.
  • the facing windows can be of different size and / or shape.
  • At least one of the windows may, if desired, have a narrower width than that of the strip structure.
  • At least one of the windows has a width equal to that of the strip structure.
  • the strip structure may have a width greater than 4 mm, in particular 5 mm, for example 10, 15 or 20 mm.
  • the strip structure may include a porous strip support element, in particular having openings having a section ranging from 3 mm 2 to 30 mm 2 , and at least one element defining a portion in relief on the strip structure, this portion in relief each having an apparent outer face.
  • the strip support element may include a cavity with an object placed inside, in particular a security element such as a chip or liquid crystals, the object and the strip support element being covered at least partially on at least one face, better on two opposite faces, by elements of the strip structure defining raised portions having visible faces.
  • a security element such as a chip or liquid crystals
  • Another subject of the invention is, according to another of its aspects, a security and / or valuable document comprising a sheet material as defined above.
  • the security and / or value document may consist of one of the following: a banknote, identity document, passport slip or cover, visa, coupon, document of other value than a bank note, for example a check or a credit card, a protection and / or authentication label, a traceability label.
  • a packaging element in particular a packaging, comprising a sheet material as defined above.
  • Another subject of the invention is a strip structure arranged to be incorporated at least partially into a fibrous layer.
  • the strip structure comprises on each of its opposite faces at least one raised portion serving to form on each of the opposite faces of the fibrous layer at least one window.
  • the strip structure may for example comprise a support element formed from a film with a polarization effect of light.
  • a round-shaped paper machine comprising a tank 1 containing a suspension 4 of fibers, for example cellulose fibers and / or cotton linters and / or synthetic and / or artificial fibers, in which a canvas cylinder is partially immersed rotary 2 defining a surface 3 in contact with which continuously forms a fibrous layer 5 monojet.
  • a suspension 4 of fibers for example cellulose fibers and / or cotton linters and / or synthetic and / or artificial fibers
  • a canvas cylinder is partially immersed rotary 2 defining a surface 3 in contact with which continuously forms a fibrous layer 5 monojet.
  • a strip structure 7 is brought into contact with the fibrous layer 5 in formation so that the latter is at least partially embedded in the fibrous layer 5.
  • the strip structure 7 has two opposite faces 8 and 9, the face 9 being arranged opposite the submerged surface 3 of the rotary fabric cylinder 2.
  • the strip structure 7 comprises on the face 8 a plurality of raised portions 10 having a thickness sufficient to remain uncovered at least partially on one face 11 of the fibrous layer 5.
  • Each raised portion 10 of the strip structure 7 defines on the face 11 of the fibrous layer 5 a window 12.
  • the raised portions 10 can, as illustrated in the figure 3 , come flush with the face 11 of the fibrous layer 5 or, as a variant, as illustrated in the figure 4 , protrude on this face 11, for example by forming an excess thickness detectable to the touch.
  • the face 9 of the strip structure 7 is devoid of relief.
  • the surface 3 of the rotary fabric cylinder 2 comprises, in the direction of formation of the fibrous layer 5, an alternation of hollow zones 16 and projecting zones 17, the latter serving to prevent the accumulation of fibers in regions of the fibrous layer 5 corresponding to the windows 13.
  • the strip structure 7 may comprise a crenellated strip element 20 forming raised portions 10 and assembled, in particular heat-fixed, with a flat strip element 21.
  • the strip elements 20 and 21 are made of plastic, the notched strip element 20 being preferably made of hydrophobic plastic material, for example polyester, in order to promote the non-overlapping of the raised portions 10 by fibers during the formation of the fibrous layer 5.
  • the slots of the strip element 20 are produced by thermal embossing.
  • This structure 24 comprises a strip support element 25, for example of plastics material, substantially flat covered at least partially, on the face 8, with a coating 27 having a variable thickness to form raised portions 10.
  • the coating 27 may be a hydrophobic varnish which can be crosslinked under UV or infrared radiation, or by exposure to an electron beam, the varnish being deposited on the strip support element 25 in particular by screen printing.
  • the strip structures 7 and 24 are pressed, when they are introduced into the fibrous layer 5 in formation, against the surface 3 of the rotary fabric cylinder 2 with an arrangement according to which each raised portion 10 coincides with a recessed area 16, as illustrated in the figure 1 .
  • the windows 12 on the face 11 of the fibrous layer 5 and the windows 13 on the face 14 are arranged alternately.
  • the strip structure 24 is brought against the surface 3 of the rotary fabric cylinder 2 so as to make each relief portion 10 of the strip structure 24 coincide with a protruding area of the surface 3 so as to form on each face 11 of the fibrous layer 5 a window 12 facing a window 13 on the other face 14.
  • the strip structure defines portions in relief on its two opposite faces.
  • a strip structure 30 constituted by a crenellated strip element made of hydrophobic plastic material serving to form windows 12 and 13 alternated on the two opposite faces 11 and 14 of the fibrous layer 5.
  • a rotary fabric cylinder 2 having a surface 3 ′ devoid of alternating recessed areas and projecting areas, shown flat on the figure 9 .
  • the crenellated strip element 30 has slots that are sufficiently rigid to withstand stresses in tension during the introduction of the strip element 30 into the fibrous layer 5 or during the formation thereof.
  • a strip structure 32 comprising first and second crenellated strip elements 33 and 34 used to form windows on the two opposite faces of the fibrous layer.
  • the strip structure 32 further comprises a third flat strip element 35 sandwiched between the first and second serrated strip elements 33 and 34.
  • a strip structure 37 comprising a strip support element 38 made of plastic material and covered on each of its opposite faces 8 and 9 with a varnish 39 having a variable thickness to form raised portions 10.
  • the raised portions 10 on the face 9 of the strip structure 37 facing the surface 3 'of the rotary fabric cylinder 2 has a thickness greater than that of the raised portions 10 on the other face 8, making it possible to promote the entanglement of the fibers on the side of the surface 3 '.
  • the raised portions 10 on the face 8 can be in coincidence with those of the opposite face 9 so as to form on the opposite faces of the fibrous layer 5 of the facing windows.
  • the raised portions 10 on the face 8 can be offset with respect to those of the other face 9 so as to form offset windows on the opposite faces of the fibrous layer 5.
  • the fibrous layer 5 can be subjected to at least one of the pressing, calendering and drying operations.
  • the strip structure 7, 24, 30, 32 or 37 may include a security element chosen from: an element with variable and / or diffractive optical effect such as for example a holographic, iridescent or liquid crystal element, interference compounds, a magnetic or crystalline coating, magnetic fibers, tracers detectable by magnetic resonance, tracers detectable by X-ray fluorescence, printing a varnish or an ink, luminescent or fluorescent tracers, photochromic, thermochromic, electroluminescent and / or piezochromic and / or color-changing compounds in contact with one or more predetermined products, compounds sensitive to microwave radiation, anti-stock compounds.
  • a security element chosen from: an element with variable and / or diffractive optical effect such as for example a holographic, iridescent or liquid crystal element, interference compounds, a magnetic or crystalline coating, magnetic fibers, tracers detectable by magnetic resonance, tracers detectable by X-ray fluorescence, printing a varnish or an ink, luminescent or fluorescent tracers, photo
  • One of the aforementioned security elements can be incorporated into the layer of varnish 27 or 39.
  • the varnish 39 can be chosen to interact, in particular optically, with the strip support element 38.
  • Document 50 can be a bank note.
  • the document may constitute one of the following elements: an identity document, a passport cover or sheet, a visa, a coupon, a document of value other than a banknote, for example a check or a credit card, a protection and / or authentication label, a traceability label.
  • the strip structure 24 extends from a first edge 51 of the document 50 to a second edge 52 opposite the first.
  • the windows 12 formed by the strip structure 24 are identical and have a rectangular shape.
  • the windows 12 can be circular in shape or have any other shape.
  • the windows 12 can for example have a shape each defining a pattern such as, for example, an alphanumeric character, in particular a letter of the alphabet.
  • the different letters can form, if necessary, a word.
  • one of the windows 12 can define a number or a logo for example.
  • the strip structure 24 may have a width greater than 4 mm, in particular 5 mm, for example 20 mm.
  • the windows 12 may have a width equal to that of the strip structure 24, as illustrated in the figure 14 or, alternatively, a narrower width than that of the strip structure 24, as illustrated in the figure 15 .
  • the different windows 12 of the document 50 may have different colors.
  • the letter A can appear in fluorescent yellow, the letter B in fluorescent red and the letter C in fluorescent blue.
  • the different windows 12 can have different properties.
  • the letter A can have “soft” magnetism properties
  • the letter B for fluorescence properties
  • the letter C for interference effects.
  • a strip structure 5 comprising, on one face, a plurality of main raised portions 56 serving each to form a main window on one face of the fibrous layer 5 and a plurality of additional raised portions 57 having a thickness and an area more weak than those of the main raised portions 56 and arranged to compensate for a variation in thickness of the strip structure 55.
  • the raised portions 57 are arranged, in the example considered, on either side of the raised portions 56.
  • a strip structure 90 comprising a porous strip support element 91 and an element 92 partially covering the strip element 91 in order to create the raised portion 10.
  • the element 91 is for example an element, preferably planar and not crenellated, which comprises openings 93 constituted for example by perforations.
  • openings 93 extend, in the example considered, over substantially the entire surface of the element 91 elsewhere than under the element 92, the total section of the openings 93 representing for example more than 40%, better still more than 50% , of the total area of the element 91, being nevertheless for example less than or equal to 60%.
  • the presence of the openings 93 facilitates the entanglement of the paper fibers and therefore allows better anchoring of the strip structure within the sheet material.
  • strip structures having a width for example greater than 5 mm, better still greater than 20 mm, for example of the order of 25 mm.
  • each of the openings 93 is for example greater than 3 mm 2 and less than 30 mm 2 .
  • the openings 93 are holes of circular section whose diameter is preferably between 1 and 3 mm, in particular close to 2 mm.
  • the openings 93 can be made by perforation, for example by punching or with a punch.
  • the areas of the support element 91 intended to be covered by the element or elements 92 may or may not have the openings 93, and preferably do not.
  • the element 92 which creates the additional thickness is for example a deposit of a coating, for example one or more impressions of a varnish.
  • the element 92 can also be an adhesive film which can be transferred cold or hot in the case of a heat-sealing adhesive.
  • the additional thickness created by the element 92 is for example of the order of 10 to 50 ⁇ m, preferably being close to 30 ⁇ m.
  • the element (s) 92 may be present only on one side only of the strip element 91 but preferably the elements 92 are present on the two opposite faces of the element 91, being arranged facing each other in pairs.
  • the strip structure may include, as illustrated in the figure 21 , at least one cavity 99 housing an object 100 such as for example a chip of an RFID device or liquid crystals.
  • the cavity 99 can be produced in a support element in a strip 91, porous, for example having the characteristics described with reference to the figure 19 .
  • the cavity 99 can extend in a zone of the element 91 which is covered by the elements 92 intended to create the extra thicknesses on the strip structure, these elements 92 then ensuring protection of the object 100 against external aggressions such as for example the mechanical stresses exerted during printing.
  • the strip structure is for example embedded in the thickness of the fibrous layer 5, so that the element 91 does not surface on the faces 11 and 14, only the outer faces 97 of the elements 92 coming out of these faces.
  • the support element 91 is a knitted band, with wide stitches.
  • At least one of the raised portions can be formed by an electronic device fixed to a strip support element, this device comprising in particular an electronic chip.
  • the raised portions of the strip structure can be arranged to form thicknesses detectable by touch on the two opposite faces of the fibrous layer.
  • the sheet material can for example be used to produce a packaging element such as packaging.

Landscapes

  • Credit Cards Or The Like (AREA)
  • Paper (AREA)
  • Laminated Bodies (AREA)

Claims (51)

  1. Verfahren zur Herstellung eines blattförmigen Materials (6; 28; 28'; 31) auf dem Weg der Papierherstellung, das mindestens eine Faserschicht (5) enthält, die zwei entgegengesetzte Seiten (11; 14) aufweist, mit auf jeder ihrer Seiten mindestens einem Fenster (12; 13), wobei die Faserschicht durch Aufbringen von Fasern auf eine Fläche (3) geformt wird, wobei das blattförmige Material außerdem mindestens eine bandförmige Struktur (7; 24; 30; 32; 37; 90) enthält, die zumindest teilweise in die Faserschicht versenkt wird, wobei die bandförmige Struktur zwei entgegengesetzte Seiten (8; 9) mit auf mindestens einer ihrer Seiten mindestens einem erhabenen Abschnitt (10) aufweist, wobei das Verfahren den folgenden Schritt enthält:
    - Inkontaktbringen der bandförmigen Struktur (7; 24; 30; 32; 37; 90) mit der geformt werdenden Faserschicht, wobei die Seite (8) der bandförmigen Struktur mit dem erhabenen Abschnitt (10) zur Fläche (3) entgegengesetzt angeordnet ist, wobei der erhabene Abschnitt (10) eine ausreichende Dicke aufweist, um zumindest teilweise auf einer Seite der Faserschicht unbedeckt zu bleiben, um eines (12) der Fenster der Faserschicht auszusparen.
  2. Verfahren nach dem vorhergehenden Anspruch, wobei der erhabene Abschnitt (10) der bandförmigen Struktur an der entsprechenden Seite (11) der Faserschicht bündig anliegt.
  3. Verfahren nach Anspruch 1, wobei der erhabene Abschnitt (10) der bandförmigen Struktur auf der entsprechenden Seite (11) der Faserschicht vorsteht.
  4. Verfahren nach einem der vorhergehenden Ansprüche, wobei der erhabene Abschnitt (10) der bandförmigen Struktur eine zumindest teilweise hydrophobe Außenfläche aufweist.
  5. Verfahren nach einem der vorhergehenden Ansprüche, wobei die bandförmige Struktur (7; 30; 32) mindestens ein gezacktes bandförmiges Element (20; 30; 33; 34), insbesondere aus Kunststoff, enthält, das den mindestens einen erhabenen Abschnitt (10) der bandförmigen Struktur definiert.
  6. Verfahren nach dem vorhergehenden Anspruch, wobei das gezackte bandförmige Element (20; 30; 33; 34) mindestens eine Zacke enthält, die durch Prägung, insbesondere thermische Prägung, hergestellt wird.
  7. Verfahren nach einem der Ansprüche 1 bis 4, wobei die bandförmige Struktur ein bandförmiges Trägerelement (25; 38) mit mindestens einer Seite mindestens teilweise mit einer Beschichtung (27; 39) bedeckt enthält, die eine Dicke aufweist, die ausgewählt wird, um den erhabenen Abschnitt der bandförmigen Struktur zu formen.
  8. Verfahren nach dem vorhergehenden Anspruch, wobei die Beschichtung (27; 39) durch Siebdruck auf das bandförmige Trägerelement aufgebracht wird.
  9. Verfahren nach einem der Ansprüche 7 und 8, wobei die Beschichtung (27; 39) eine hydrophobe Beschichtung ist.
  10. Verfahren nach einem der vorhergehenden Ansprüche, wobei eine der Seiten der bandförmigen Struktur (7; 24) keinen erhabenen Abschnitt enthält, der dazu dient, ein Fenster auf einer Seite der Faserschicht zu bilden.
  11. Verfahren nach den Ansprüchen 5 und 10, wobei die bandförmige Struktur ein erstes flaches bandförmiges Element (21) und ein zweites gezacktes bandförmiges Element (20) enthält, das mit dem ersten insbesondere mit Wärmezufuhr zusammengefügt wird.
  12. Verfahren nach den Ansprüchen 7 und 10, wobei nur eine Seite des bandförmigen Trägerelements (21) zumindest teilweise mit einer Beschichtung (20) bedeckt ist.
  13. Verfahren nach einem der Ansprüche 10 bis 12, wobei die Fläche (3) mindestens einen vertieften Bereich (16) neben mindestens einem vorstehenden Bereich (17) enthält, der angeordnet ist, um auf der Faserschicht mindestens ein Fenster (13) zu formen.
  14. Verfahren nach dem vorhergehenden Anspruch, wobei die bandförmige Struktur so gegen die eingetauchte Fläche (3) gebracht wird, dass der erhabenen Abschnitt (10) der bandförmigen Struktur mit einem vertieften Bereich (16) der Fläche zusammentrifft, um auf jeder Seite der Faserschicht ein Fenster zu formen, das bezüglich des Fensters der anderen Seite versetzt angeordnet ist.
  15. Verfahren nach Anspruch 13, wobei die bandförmige Struktur so gegen die Fläche (3) gebracht wird, dass der erhabene Abschnitt (10) der bandförmigen Struktur mit einem vorstehenden Bereich (17) der Fläche zusammentrifft, um auf jeder Seite der Faserschicht ein Fenster gegenüber dem Fenster der anderen Seite zu formen.
  16. Verfahren nach einem der Ansprüche 1 bis 10, wobei die bandförmige Struktur (30; 32; 37) auf jeder ihrer entgegengesetzten Seiten mindestens einen erhabenen Abschnitt (10) enthält, der dazu dient, auf jeder der entgegengesetzten Seiten der Faserschicht mindestens ein Fenster zu formen.
  17. Verfahren nach dem vorhergehenden Anspruch, wobei die erhabenen Abschnitte (10) auf den entgegengesetzten Seiten der bandförmigen Struktur einander gegenüberliegen.
  18. Verfahren nach Anspruch 16, wobei die erhabenen Abschnitte (10) auf den entgegengesetzten Seiten der bandförmige Struktur zueinander versetzt angeordnet sind.
  19. Verfahren nach Anspruch 4 und einem der Ansprüche 16 bis 18, wobei die bandförmige Struktur erste und zweite gezackte bandförmige Elemente (33; 34) enthält.
  20. Verfahren nach dem vorhergehenden Anspruch, wobei die bandförmige Struktur ein drittes flaches bandförmiges Element (35) enthält, das zwischen dem ersten und dem zweiten gezackten bandförmigen Element (33; 34) sandwichartig aufgenommen wird.
  21. Verfahren nach Anspruch 7 und einem der Ansprüche 16 bis 18, wobei die entgegengesetzten Seiten des bandförmigen Trägerelements (38) je mit einer Beschichtung (39) bedeckt sind, die eine Dicke aufweist, die ausgewählt wird, um einen erhabenen Abschnitt zu formen.
  22. Verfahren nach einem der Ansprüche 16 bis 21, wobei der erhabene Abschnitt auf der Seite der bandförmigen Struktur, die der Fläche (3) gegenüberliegt, eine größere Dicke aufweist als diejenige des erhabenen Abschnitts auf der anderen Seite der bandförmigen Struktur.
  23. Verfahren nach den Ansprüchen 5 und 16, wobei die bandförmige Struktur ein einziges gezacktes Bandelement (30) enthält, das dazu dient, Fenster auf den zwei entgegengesetzten Seiten der Faserschicht zu formen.
  24. Verfahren nach einem der vorhergehenden Ansprüche, wobei mindestens einer der erhabenen Abschnitte der bandförmigen Struktur der Faserschicht eine Form aufweist, die ein Muster definiert, das insbesondere aus einem Buchstaben des Alphabets, einer Zahl oder einem Logo ausgewählt wird.
  25. Verfahren nach einem der vorhergehenden Ansprüche, wobei die bandförmige Struktur mindestens ein Sicherheitselement enthält, das ausgewählt wird aus: einem Element mit variabler und/oder diffraktiver optischer Wirkung, wie zum Beispiel ein holographisches, irisierendes oder mit Flüssigkristallen versehenes Element, interferierende Verbindungen, eine magnetische oder kristalline Beschichtung, magnetische Fasern, durch Magnetresonanz erfassbare Indikatoren, durch Röntgenfluoreszenz erfassbare Indikatoren, ein Aufdruck eines Lacks oder einer Druckfarbe, lumineszierende oder fluoreszierende Indikatoren, photochrome, thermochrome, elektrolumineszierende und/oder piezochrome Verbindungen und/oder die in Kontakt mit einem oder mehreren vorbestimmten Produkten die Farbe wechseln, für eine Mikrowellenstrahlung empfindliche Verbindungen, Anti-Stokes-Verbindungen.
  26. Verfahren nach einem der vorhergehenden Ansprüche, wobei die bandförmige Struktur auf mindestens einer Seite zwei erhabene Abschnitte enthält, die dazu dienen, zwei Fenster der Faserschicht zu formen, wobei diese erhabenen Abschnitte unterschiedliche insbesondere optische, physikalische und/oder chemische Eigenschaften aufweisen.
  27. Verfahren nach dem vorhergehenden Anspruch, wobei die zwei erhabenen Abschnitte (10) unterschiedliche Farben aufweisen.
  28. Verfahren nach einem der vorhergehenden Ansprüche, wobei die bandförmige Struktur auf einer Seite mindestens einen erhabenen Hauptabschnitt (56), der dazu dient, ein Hauptfenster auf einer Seite der Faserschicht zu formen, und mindestens einen zusätzlichen erhabenen Abschnitt (57) enthält, der insbesondere eine Dicke und eine Fläche hat, die kleiner sind als diejenigen des erhabenen Hauptabschnitts, und eingerichtet ist, eine Dickenänderung der bandförmigen Struktur in der Nähe des erhabenen Hauptabschnitts zu kompensieren.
  29. Verfahren nach einem der vorhergehenden Ansprüche, wobei die Faserschicht (5) auf einer Rundsiebpapiermaschine hergestellt wird, wobei die Fläche (3) vom in eine Faserstoffdispersion eingetauchten Formationssieb der Maschine definiert wird.
  30. Verfahren nach einem der vorhergehenden Ansprüche, wobei die bandförmige Struktur porös ist, insbesondere das bandförmige Trägerelement des Anspruchs 7 porös ist.
  31. Verfahren nach Anspruch 30, wobei die bandförmige Struktur Öffnungen enthält.
  32. Verfahren nach Anspruch 31, wobei die Öffnungen einen Querschnitt zwischen 3 mm2 und 30 mm2 haben.
  33. Verfahren nach Anspruch 31 oder 32, wobei die von den Öffnungen eingenommene Fläche größer als oder gleich 40% der Gesamtfläche der bandförmigen Struktur von oben gesehen ist, besser größer als oder gleich 50% und kleiner als oder gleich 60%.
  34. Verfahren nach einem der Ansprüche 30 bis 33, wobei die bandförmige Struktur ein poröses, insbesondere gelochtes bandförmiges Trägerelement enthält, und der erhabene Abschnitt (10) auf das bandförmige Element aufgebracht wird.
  35. Verfahren nach Anspruch 34, wobei der erhabene Abschnitt von einer Beschichtung, insbesondere einem oder mehreren Aufdrucken eines Lacks, oder von einer kalt oder warm übertragenen Klebefolie geformt wird.
  36. Verfahren nach Anspruch 34 oder 35, wobei der erhabene Abschnitt (10) eine Überdicke erzeugt, die von 10 µm bis 50 µm, vorzugsweise von 25 bis 35 µm bezüglich der Fläche der bandförmigen Struktur geht.
  37. Verfahren nach einem der vorhergehenden Ansprüche, wobei die bandförmige Struktur mindestens einen Hohlraum enthält, in dem zumindest teilweise ein Objekt angeordnet ist, insbesondere ein Sicherheitselement.
  38. Verfahren nach Anspruch 37, wobei das Objekt ein Chip oder eine Flüssigkristallschicht ist.
  39. Verfahren nach Anspruch 37 oder 38, wobei der Hohlraum in einem bandförmigen Trägerelement hergestellt ist und das Objekt teilweise zumindest auf einer Seite von einem Element bedeckt wird, das zumindest teilweise den erhabenen Abschnitt (10) definiert.
  40. Verfahren nach Anspruch 37, wobei das bandförmige Trägerelement porös, insbesondere gelocht ist.
  41. Verfahren nach Anspruch 39 oder 40, wobei das Objekt auf seinen beiden Seiten von Elementen bedeckt wird, die erhabene Abschnitte (10) der bandförmigen Struktur definieren.
  42. Blattförmiges Material, das mindestens eine einlagige Faserschicht (5) enthält, die zwei entgegengesetzte Seiten mit auf jeder ihrer Seiten mindestens einem Fenster aufweist, wobei das blattförmige Material außerdem mindestens eine bandförmige Struktur (7; 24; 30; 32; 37; 90) enthält, die zumindest teilweise in die Faserschicht versenkt ist, wobei die bandförmige Struktur mindestens einen erhabenen Abschnitt enthält, wobei die Form mindestens eines der Fenster vom erhabenen Abschnitt definiert wird, wobei dieser an eine Seite der Faserschicht bündig anliegt oder auf diese vorsteht.
  43. Material nach dem vorhergehenden Anspruch, dadurch gekennzeichnet, dass die Fenster auf den entgegengesetzten Seiten der Faserschicht einander gegenüber angeordnet sind.
  44. Material nach einem der Ansprüche 42 und 43, dadurch gekennzeichnet, dass die Fenster auf den entgegengesetzten Seiten der Faserschicht zueinander versetzt angeordnet sind.
  45. Material nach einem der Ansprüche 42 bis 44, dadurch gekennzeichnet, dass mindestens eines der Fenster eine geringere Breite aufweist als diejenige der bandförmigen Struktur.
  46. Material nach einem der Ansprüche 42 bis 45, dadurch gekennzeichnet, dass die bandförmige Struktur eine Breite von mehr als 4 mm, insbesondere 5 mm, zum Beispiel 10, 15 oder 20 mm enthält.
  47. Blattförmiges Material nach Anspruch 42, wobei die bandförmige Struktur ein poröses bandförmiges Trägerelement enthält, das insbesondere Öffnungen (93), die einen Querschnitt haben, der von 3 mm2 bis 30 mm2 geht, und mindestens ein einen erhabenen Abschnitt (10) auf der bandförmigen Struktur definierendes Element aufweist, wobei dieser erhabene Abschnitt eine sichtbare Außenseite hat.
  48. Blattförmiges Material nach Anspruch 47, wobei das bandförmige Trägerelement einen Hohlraum mit einem Objekt (100) darin angeordnet enthält, insbesondere ein Sicherheitselement wie ein Chip oder Flüssigkristalle, wobei das Objekt und das bandförmige Trägerelement zumindest teilweise auf mindestens einer Seite, besser auf zwei entgegengesetzten Seiten, mit Elementen (92) der bandförmigen Struktur bedeckt sind, die erhabene Abschnitte definieren, die sichtbare Seiten haben.
  49. Sicherheits- und/oder Wertdokument (50), das ein wie in einem der Ansprüche 42 bis 48 definiertes blattförmiges Material enthält.
  50. Dokument nach dem vorhergehenden Anspruch, das eines der folgenden Elemente bildet: eine Banknote, ein Ausweisdokument, ein Blatt oder ein Einband eines Reisepasses, ein Visum, ein Coupon, ein Wertdokument anders als eine Banknote, zum Beispiel ein Scheck oder eine Kreditkarte, ein Schutz- und/oder Authentifizierungsetikett, ein Rückverfolgbarkeitsetikett.
  51. Umhüllungselement, insbesondere eine Verpackung, die ein blattförmiges Material wie in einem der Ansprüche 42 bis 48 definiert enthält.
EP06794526.1A 2005-08-16 2006-08-03 Blattmaterial und herstellungsverfahren dafür Not-in-force EP1917396B1 (de)

Applications Claiming Priority (2)

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FR0552516A FR2889853B1 (fr) 2005-08-16 2005-08-16 Materiau en feuille et procede de fabrication.
PCT/FR2006/050785 WO2007020359A2 (fr) 2005-08-16 2006-08-03 Materiau en feuille et procede de fabrication

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EP1917396B1 true EP1917396B1 (de) 2020-03-11

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FR2929962B1 (fr) * 2008-04-11 2021-06-25 Arjowiggins Licensing Sas Procede de fabrication d'une feuille comportant une sous- epaisseur ou une sur-epaisseur au niveau d'un ruban et feuille associee.

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DE3601114A1 (de) * 1986-01-16 1987-07-23 Gao Ges Automation Org Verfahren zur herstellung von sichrheitspapier mit eingelagertem sicherheitsfaden
GB8912750D0 (en) * 1989-06-02 1989-07-19 Portals Ltd Security paper
SE470400B (sv) * 1992-07-07 1994-02-14 Eric Rothfjell Sedel och förfarande för framställning av en sedel, vilken är försedd med ett fiberuttunnat och armeringsförstärkt område i form av ett optiskt fönster
DE4314380B4 (de) * 1993-05-01 2009-08-06 Giesecke & Devrient Gmbh Sicherheitspapier und Verfahren zu seiner Herstellung
WO1995009274A1 (fr) * 1993-09-28 1995-04-06 Arjo Wiggins S.A. Papier de securite comportant une zone transparente d'opacite sensiblement nulle
GB2311303B (en) * 1996-03-18 2000-09-13 Portals Ltd Reinforced windowed paper incorporating a security element
GB9828770D0 (en) * 1998-12-29 1999-02-17 Rue De Int Ltd Security paper
GB2394696B (en) * 2002-11-01 2004-09-29 Rue De Int Ltd Improvements in security papers

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ES2791680T3 (es) 2020-11-05
EP1917396A2 (de) 2008-05-07
WO2007020359A2 (fr) 2007-02-22
FR2889853A1 (fr) 2007-02-23
FR2889853B1 (fr) 2007-10-12

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