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EP2607550B1 - Substrat de base pour un billet de banque à film composite - Google Patents

Substrat de base pour un billet de banque à film composite Download PDF

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Publication number
EP2607550B1
EP2607550B1 EP12008410.8A EP12008410A EP2607550B1 EP 2607550 B1 EP2607550 B1 EP 2607550B1 EP 12008410 A EP12008410 A EP 12008410A EP 2607550 B1 EP2607550 B1 EP 2607550B1
Authority
EP
European Patent Office
Prior art keywords
substrate
base substrate
regions
sub
hole
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
EP12008410.8A
Other languages
German (de)
English (en)
Other versions
EP2607550A8 (fr
EP2607550A1 (fr
Inventor
Patrick Renner
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.)
Giesecke and Devrient Currency Technology GmbH
Original Assignee
Giesecke and Devrient GmbH
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
Priority claimed from DE102011122113A external-priority patent/DE102011122113A1/de
Application filed by Giesecke and Devrient GmbH filed Critical Giesecke and Devrient GmbH
Priority claimed from DE102012024768.0A external-priority patent/DE102012024768A1/de
Priority claimed from DE201210024774 external-priority patent/DE102012024774A1/de
Publication of EP2607550A1 publication Critical patent/EP2607550A1/fr
Publication of EP2607550A8 publication Critical patent/EP2607550A8/fr
Application granted granted Critical
Publication of EP2607550B1 publication Critical patent/EP2607550B1/fr
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
    • 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
    • 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
    • D21H21/50—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 form

Definitions

  • the invention relates to a base substrate for a composite film banknote, to a value document having such a base substrate, to a method for producing such a base substrate or document of value, and to a dewatering screen for the production of such a base substrate.
  • Data carriers such as valuables or identity documents, but also other valuables, such as branded goods, are often provided with security elements for the purpose of security, which permit verification of the authenticity of the data carrier and at the same time serve as protection against unauthorized reproduction.
  • security elements for the purpose of security, which permit verification of the authenticity of the data carrier and at the same time serve as protection against unauthorized reproduction.
  • a film composite banknote which has an inner paper layer and two films applied by means of an adhesive to opposite sides of the paper layer.
  • the paper layer may be interrupted by a hole to form a window in the banknote, in which the two films are directly connected by means of the adhesive.
  • the abrupt transition from the relatively thick paper to the hole can lead to undefined and blurred air pockets at the window edge.
  • the laminated films can relax undefined during the curing time and there is a risk that imprint punched edges in the counter-side and generate so-called ghosting.
  • the object of the invention is to avoid the disadvantages of the prior art.
  • it is intended to provide a base substrate for a film composite banknote which allows the production of windows with high window quality, sharp window margins and minimized air inclusions.
  • a high process reliability in the production of banknotes should be achieved.
  • a base substrate in the form of a rectangular arc having a longitudinal direction and a transverse direction perpendicular thereto is used for producing a composite film banknote, which has at least one strip-shaped hole track extending along the longitudinal direction or the transverse direction of the base substrate.
  • the hole track contains a substrate dilution in the first subregions and a hole extending through the base substrate in the substrate dilution and contains a substrate thickening in the second subregions.
  • the base substrate has a substantially constant first substrate thickness S 0 outside the strip-shaped hole tracks.
  • the thickness of the substrate increases in the region of the substrate thickening to a second substrate thickness S thick which is between 1.05 * S 0 and 2.0 * S 0 , preferably between 1.10 * S 0 and 1.60 * S 0 , more preferably between 1.20 * S 0 and 1.40 * S 0 .
  • the substrate thickness in the region of the substrate thickening does not change abruptly but increases in a direction perpendicular to the strip-shaped one Hole trace continuously from the first substrate thickness S 0 to the second substrate thickness S thick and subsequently decreases again continuously to the first substrate thickness S 0 down.
  • the regions of continuous increase and continuous decrease preferably each occupy more than 20%, in particular more than 30%, or even more than 40% of the width of the hole track.
  • the substrate thickness of a 2 cm wide hole track can continuously increase from S 0 to S thick over a 0.9 cm wide area (45% of the width), remain constant in an approximately 0.2 cm wide area (10% of the width), and continuously decrease from S thick to S 0 in a 0.9 cm wide area (45% of the width).
  • a large-area paper thickening is understood to mean a paper thickening which occupies an area of more than 25 mm 2 , preferably more than 225 mm 2 and particularly preferably more than 600 mm 2 , on the paper.
  • the paper thickening has a substantially constant thickness allows the paper thickening to be subjected to a modulation of the paper thickness produced by the abovementioned substructures of the dewatering screen.
  • the modulation depth is in any case significantly smaller than the thickening itself and is preferably below 50%, in particular below 25% of the thickening. In any case, the paper thickness in the area of the paper thickening nowhere decreases to the paper thickness in the outer area of the paper thickening.
  • the substructures of the dewatering screen in particular a geometric pattern, for example may form a checkerboard or diamond pattern, a graphic motif depicting numbers, characters, plants, animals, people or objects, or may be randomly distributed within the pit area, there may also be correspondingly shaped modulations in the paper. These modulations can be used as design elements.
  • the substructures of the dewatering screen be designed such that they do not produce perceptible modulations in the paper without aids to the human eye.
  • the substrate thickness decreases in the region of the substrate dilution in a direction perpendicular to the strip-shaped hole track continuously from the first substrate thickness S 0 to a third substrate thickness S thin at the edge of the through hole and subsequently increases again continuously to the first substrate thickness S 0 out.
  • the areas of continuous decrease and continuous increase preferably each occupy more than 20%, in particular more than 30%, or even more than 40% of the width of the hole track.
  • the at least one strip-shaped hole track preferably has a width between 0.2 cm and 10.0 cm, in particular between 0.5 cm and 3.0 cm.
  • the base substrate may contain only one hole track or several parallel hole tracks.
  • ⁇ M thick 0.1 * ⁇ M thin ... 2.0 * ⁇ M thin
  • ⁇ M thick 0.5 * ⁇ M thin ... 1.5 * ⁇ M thin
  • ⁇ M thick 0.8 * ⁇ M thin ... 1.3 * ⁇ M thin .
  • the through hole has a sharply delimited edge and in this case is produced, for example, by cutting, in particular laser cutting, or punching.
  • the through hole has an edge produced during papermaking with characteristic irregularities and can in this case be produced, for example, by a hole type applied to the dewatering screen.
  • the strip-shaped hole tracks each consist of the first, thinned partial areas and the second, thickened partial areas, so that each part of a hole track lies either in a substrate dilution (and possibly in a substrate dilution in a hole) or in a substrate thickening.
  • the strip-shaped hole tracks have, in addition to the first and second partial areas, also third partial areas with substantially unchanged substrate thickness in relation to the outer area outside the hole track.
  • the third partial regions are either arranged completely within the second partial regions or represent interruptions of the second partial regions transversely to the strip-shaped hole track.
  • the formulation according to which the third partial regions represent interruptions of the second partial regions transversely to the strip-shaped hole track comprises both embodiments in which the Interruptions are arranged transversely in the sense of substantially at right angles with respect to the second portions or in which the interruptions are transverse at a non-right angle, in particular diagonally, are arranged with respect to the second portions.
  • Strip-shaped regions which extend parallel to a hole track do not constitute third sub-regions in the sense of the present invention.
  • the strip-shaped hole tracks are therefore also formed in this variant of the invention essentially by the first, thinned subregions and the second, thickened subregions, although in addition Within the second regions, third partial regions with essentially unchanged substrate thickness can be present or the hole trace in the second partial regions can be interrupted by transverse third partial regions.
  • the third portions are formed in the form of webs or non-linear patterns. With particular advantage, they can form a mark of authenticity in the base substrate, in particular a coding, such as a one- or two-dimensional barcode or a Braille script.
  • the third portions may also form a pattern within the hole track, such as a stripe, checkerboard or checker pattern.
  • irregularly shaped third partial regions can be distributed in the second partial regions. It is also conceivable that the third subregions are designed in the form of a motif.
  • the base substrate is preferably formed from paper, in particular cotton paper, or from paper with a proportion of polymer fibers.
  • the thickening according to the invention does not necessarily have to be formed from the same material as the base substrate.
  • the thickening on a base substrate by means of application, in particular imprints of transparent or pigmented paints / adhesives formed becomes.
  • a suitable printing method for producing such a substrate thickening would be, for example, the screen printing method.
  • the thickening on the base substrate could also be done by spraying transparent or pigmented paints / adhesives by means of a suitable spray nozzle.
  • a substrate thickening which is formed from a different material than that of the base substrate, expediently take place before the arrangement of the further layers, in particular the arrangement of the laminating films for producing the value document.
  • the films provided for the arrangement on the base substrate have a thickening which is obtained, for example, by adhering a further film strip.
  • the foils provided for the arrangement on the base substrate have a thickening, so that the value document obtained after the arrangement of these foils on the base substrate ultimately has a hole track which is thickened by the thickened foil regions.
  • the variants described above for producing a thickened hole track by means of transparent or pigmented paints / adhesives / films have the advantage that the thickenings are optically not or only slightly visible.
  • the currently claimed base substrate can already be equipped with the substrate thickening according to the invention during the production of the substrate, so that the inventive method is procedurally and therefore economically very advantageous due to the smaller number of process steps compared to the variants mentioned above.
  • the invention also encompasses a value document, in particular a film composite banknote, having a base substrate of the type described above.
  • the document of value is at least two-layered and contains at least one film layer and at least one base substrate of the type described above.
  • the document of value is at least three-layered and contains at least one base substrate of the type described above, which is embedded between two film layers.
  • the through hole of the base substrate and the two embedding foil layers in this case advantageously define a hollow chamber which is filled with a filling material having a security feature.
  • the filler material advantageously has microencapsulated systems or non-spherical effect pigments.
  • the security feature has a microencapsulated system which comprises a large number of microcapsules, each of which has a capsule shell and a capsule contents that can be influenced by external magnetic fields and can be aligned, in particular, by external magnetic fields.
  • the filler may comprise an adhesive, but preferably contains an adhesive-free matrix for the security feature, in particular a thermoplastic resin, a UV-crosslinking resin, an electron-beam crosslinking resin or a chemically film-forming resin.
  • an adhesive-free matrix for the security feature in particular a thermoplastic resin, a UV-crosslinking resin, an electron-beam crosslinking resin or a chemically film-forming resin.
  • the film layers do not necessarily have to cover the base substrate substantially over the entire area. Conceivable, therefore, would be the arrangement of the two film layers (in a three-layer construction) only in the region of the hole track according to the invention.
  • this variant has a base substrate with a hole and a hole track, the hole track being covered on both sides of the base substrate by a self-supporting film.
  • the self-supporting foil can have security elements in the area of the hole, e.g. Diffraction structures, matt structures, color-shifting layers, liquid crystal layers, etc., which are suitable for checking the authenticity.
  • the invention also encompasses a method for producing a base substrate of the type described above, in which the base substrate is produced in the form of a rectangular arc with a longitudinal direction and a transverse direction perpendicular thereto and is provided with at least one strip-shaped hole track extending along the longitudinal direction or the Transverse direction of the base substrate extends.
  • a substrate dilution is produced in the first subregions of the hole track, and a hole extending through the substrate substrate is produced in the substrate dilution.
  • a substrate thickening is produced in the second subregions of the hole track.
  • the base substrate is preferably produced in a paper machine with a dewatering screen, wherein the substrate dilutions during the Papermaking be produced, preferably provided by the drainage screen surveys.
  • the substrate thickenings are also preferably produced during papermaking, preferably by depressions provided on the dewatering screen.
  • the substrate dilutions may alternatively be made by compressing the base substrate, for example, by calendering after papermaking.
  • the through hole is produced in an advantageous process variant within the substrate dilutions already in papermaking.
  • the through hole is produced only after papermaking by cutting, in particular laser cutting, or punching.
  • a base substrate of the type described above is laminated with at least one film, the laminated base substrate is wound on a roll for Kaschierkleberaushärtung and from the cured laminated base substrate, a value document, in particular a film composite banknote generated.
  • the invention also encompasses a dewatering screen for the production of a base substrate of the type described, wherein the dewatering screen has at least one strip-shaped hole track which extends along the longitudinal direction or the transverse direction of the dewatering screen, and wherein the strip-shaped hole track has elevations in the first partial areas for generating substrate dilutions in the substrate Contains base substrate and contains wells in the second sub-areas for the production of substrate thickening in the base substrate.
  • a hole type for producing a through hole in the base substrate is provided in the first subregions of the dewatering screen.
  • the strip-shaped hole tracks of the dewatering screen each consist of the first, raised partial areas and the second, recessed partial areas, that is, each part of a perforated track lies either in an elevation or in a depression.
  • the strip-shaped hole tracks of the dewatering screen have, in addition to the first and second partial areas, also third partial areas with a screen height that is unchanged from the outside area outside the hole track.
  • the third subregions are either completely arranged within the second subregions or represent interruptions of the second subregions transversely to the strip-shaped hole track. Such interruptions of the recessed second subregions can ensure that sufficient paper fibers are held in the depressions during sheet formation.
  • the third subregions of the dewatering screen are in the form of webs or non-linear patterns, as described in more detail above for the third subregions of the base substrate.
  • first, second and third subregions of the dewatering screen respectively essentially represent the negatives of the first, second and third subregions of the base substrate, the statements made above in connection with the subregions of the base substrates apply correspondingly to the subregions of the dewatering screen.
  • the dewatering in advantageous embodiments in the Siebveriana or in the recessed area of an injection molding insert substructures.
  • the abovementioned dewatering screen has a screen fabric with at least one system of interwoven, longitudinally running warp threads and weft threads extending transversely thereto, which form screen meshes of a predetermined screen mesh surface.
  • the screen fabric has in the second subregions a screen recess with a contiguous recessed area, the outline shape of which corresponds to the outline shape of the paper thickening to be produced, and which is substantially completely provided with embossed substructures which enlarge the surface of the recessed area and the screen mesh area in the recessed area.
  • the abovementioned dewatering screen for process-reliable production of large-area paper thickenings in the second partial areas contains a perforated injection-molded insert which has an insert recess with a contiguous recess area, the outline shape of which corresponds to the outline shape of the paper thickening to be produced, and which is substantially complete is provided with substructures which increase the surface roughness of the recessed area.
  • the paper thickenings described in particular the large-area paper thickenings with a substantially constant thickness, can not only form the substrate thickenings of a hole track, but can also serve for edge stabilization of paper sheets, in particular in steel printing processing of composite film sheets (hybrid sheets).
  • laminate film sheets laminate film sheets
  • a paper sheet can be provided, for example, with a large, circumferential paper thickening, which, as described above, can be produced with the aid of a suitably designed dewatering screen.
  • the circumferential paper thickening stabilizes the paper sheet and avoids parachuting during processing.
  • the paper thickening is advantageously outside the individual benefits of the paper sheet and is removed in a later step in the process of cutting the sheet.
  • a paper sheet for example, be stabilized by the fact that only the corner regions of the paper sheet are provided with large paper thickening, or that in addition to the two upper corners and the running between these corners
  • a large area of paper thickening is provided on the edge area of the paper sheet in order to stabilize the entire leading edge of the paper sheet for the tray.
  • a plurality of oblique, spaced at the edge of the paper sheet extending strip is suitable to stabilize the sheet edge.
  • a stabilization of paper sheets, hybrid sheets and other substrate sheets, for example, with the aim to counteract the above-mentioned parachuting, can also be achieved by applying a stabilizing layer to the sheet.
  • the application can be effected in particular by a printing process, for example in the form of a color or lacquer print, but also by other coating methods.
  • the stabilization layer may in particular, as well as the paper thickening described above, circulate the sheet edge, be provided in corner regions and optionally in an edge region connecting the corners, or be formed in the form of a plurality of oblique, spaced at the edge of the sheet extending strip. Further details on the stabilization of paper sheets by an applied stabilizing layer can be found in the German Patent Application filed Dec. 18, 2012 titled "Substrate Sheet for the production of security and value documents "and the application number DE 10 2012 024 768.0 taken from the same applicant.
  • Fig. 1 shows a schematic representation of a three-layer film composite banknote 10 with a layer structure film / paper / foil, in which a security element 12 is integrated in the form of a see-through window.
  • the film composite banknote 10 is in Fig. 2 in cross section along the line II-II of Fig. 1 shown in more detail.
  • Fig. 2 contains the film composite banknote 10 in the region of the security element 12, an inner paper layer 20, the thickness of which is substantially constant outside a hole track 42 described in more detail below with a hollow chamber 22.
  • This substantially constant thickness is referred to as the substrate thickness S.
  • the hole track 42 represents an approximately 2 cm wide strip which extends parallel to one of the outer edges of the banknote 10.
  • the substrate thickness decreases from the substrate thickness S to a hollow chamber depth H at the edge of the through-hole 38.
  • the substrate thickness decreases from the substrate thickness S to a hollow chamber depth H at the edge of the through hole 38 ,
  • the paper layer 20 is covered in each case with a transparent laminate film 26, 28 on its two opposite sides.
  • the distance between the two opposing laminate films 26, 28 in the region of the through hole 38 defines a filling height A for the hollow chamber 22, which is generally different from both the Substrate thickness S and the hollow chamber depth H may differ, as in Fig. 2 illustrated.
  • a hollow chamber 22 is provided in the banknote 10, which is filled with a filling material 30 with a security feature.
  • the hollow chamber 22 may be filled with a binder 32 having platelet-like effect pigments 34 of crosslinked liquid crystals which exhibit a characteristic color-shift effect.
  • the filled hollow chamber 22 forms an oval viewing window 24 with a color-shift effect in the film composite banknote 10.
  • Fig. 4 shows a section of a base substrate according to the invention in the form of a security paper sheet 50, a plurality of individual benefits 52 corresponds to the later cut banknotes 10.
  • the security paper sheet 50 shown in the figure only in section is rectangular and has a longitudinal direction LB (the transport direction) and a transverse direction QB perpendicular thereto.
  • Fig. 5 is a single benefit 52 shown in more detail.
  • the single-use 52 itself has a longitudinal direction LE and a transverse direction QE, which are perpendicular to the longitudinal or transverse direction of the arc 50 in the embodiment.
  • Both the security paper sheet 50 and a single-use 52 each constitute a base substrate in the sense of the present invention.
  • the security paper sheet 50 of the Fig. 4 formed base substrate has a plurality of strip-shaped hole traces 54 which extend along the longitudinal direction LB of the security paper sheet 50. In the outer regions 66 outside the hole tracks 54, the security paper sheet 50 has a constant substrate thickness.
  • the hole tracks 54 consist of first and second subregions 56, 58, wherein the first subregions 56 each contain a substrate dilution 60 and in the substrate dilution a hole 62 passing through the security paper sheet 50.
  • substrate dilution and “substrate thickening” respectively refer to the substantially constant substrate thickness of the outer regions 66, ie, in the region of the substrate dilution 60, the thickness of the substrate is smaller and in the region of Substrate thickening 64, the thickness of the substrate is greater than in the outer region 66th
  • this has the individual 52 of the Fig. 5 formed base substrate on a strip-shaped hole track 54, which along the Transverse direction QE of the single-use 52 extends.
  • the hole track 54 again comprises first and second subregions 56, 58, wherein the first subregions 56 each contain a substrate dilution 60 and, in the substrate dilution, a hole 62 that extends through the individual end 52.
  • the second subregions 58 each contain a substrate thickening 64.
  • the substrate thickness in the outer regions 66 outside the hole track 54 is substantially constant.
  • Fig. 6 shows in (a) to (c) three cross sections through the base substrate (security paper sheet 50 or individual 52) along the lines AA, BB and CC of Fig. 5 ,
  • the substrate thickness in a direction perpendicular to the strip-shaped hole track 54 decreases continuously from the substrate thickness S 0 to a substrate thickness S thin at the edge of the through hole 62 and from the opposite edge of the hole 62 starting from the substrate thickness S thin again continuously until the constant layer thickness S 0 of the outer region 66 is reached.
  • the hole 62 may be a hole with a sharply defined edge, such as may be made by laser cutting or punching after sheet formation.
  • the hole 62 can also be produced during sheet formation and have characteristic irregularities in the edge region, which can not subsequently be produced on the finished paper. Such irregularities are particularly evident in the absence of a sharp cutting edge or irregular Attachment of fibers in the edge region and by protruding into the hole of individual fibers.
  • Fig. 6 (b) shows a section perpendicular to the hole track 54 in the region of the substrate thickening 64.
  • the layer thickness of the substrate perpendicular to the hole track 54 increases continuously from the first substrate thickness S 0 to a substrate thickness S thick and subsequently decreases continuously again, until in the outer region 66 again the substrate thickness S 0 is reached.
  • Fig. 6 (c) shows a section parallel to the hole track 54, wherein the section shown extends from a partial region 58 with substrate thickening 64 through a partial region 56 with substrate dilution 60 and hole 62 to a further partial region 58 with substrate thickening 64.
  • Layer thickness S thick The layer thickness S 0 of the outer region 66 is shown by dashed lines for illustration.
  • FIG. 7 (b) schematically shows a cross section through the laminated on the production role 70 laminated security paper sheet 50 along the line BB of Fig. 7 (a) .
  • the laminating films in the cross section of Fig. 7 (b) omitted and superimposed in the roll paper layers 50 ', 50 ", which are part of the same paper sheet 50 are provided alternately with different hatchings.
  • each paper areas with the constant substrate thickness S 0 on top of each other In the outer region 66 outside the hole tracks 54 are each paper areas with the constant substrate thickness S 0 on top of each other.
  • paper layers 50 ' which have a substrate dilution 60 and a hole 62 in the region of the cross section BB
  • paper layers 50 are also present which contain a substrate thickening 64 in the region of the cross section BB
  • Substrate thickening 64 is achieved in the hole tracks 54 a total thickness that does not or only slightly different from the total thickness of the outer regions 66, so that sets a more uniform and homogeneous winding pressure in the roller 70.
  • Fig. 7 (b) are idealized alternately a substrate dilution 60 and a substrate thickening 64 drawn on top of each other.
  • holes 62 in adjacent paper layers 50 ', 50 will also partly overlap or overlap one another.
  • a plurality of paper layers 50', 50 lie one above the other in a roll 70, the overall result In each case, the described compensation of the substrate dilutions 60 by the substrate thickenings 64 takes place in the hole tracks 54.
  • the relative proportion of superimposed substrate dilutions 60 and substrate thickenings 64 in the cross section of a hole track 54 depends on the size ratio of the thinned and thickened portions 56, 58. If, for example, the thickened subregions 58 along the hole track 54 are twice as long as the thinned subregions 56, then in the cross section of a hole track 54 an average of twice as many substrate thickenings 64 as substrate dilutions 60. For complete thickness compensation, each substrate thickening 64 should therefore be about half compensate for a substrate dilution. The same applies to other proportions.
  • the quantity of substance ⁇ M thin which is missing from the outer region 66 is first estimated or calculated.
  • the missing amount of substance ⁇ M thin is compensated by an excess amount of material ⁇ M thick provided in the substrate thickenings 64 in relation to the outer region 66.
  • the excess amount of substance ⁇ M thick is preferably at least 0.5 * ⁇ M thin or even at least 0.8 * ⁇ M thin .
  • the excess amount of material M thick is preferably even greater than ⁇ M thin , ie ⁇ M thick > 1.0 * ⁇ M thin , but will generally not exceed 2.0 * ⁇ M thin , ie ⁇ M thick ⁇ 2.0 * ⁇ M thin .
  • the missing quantity of substance ⁇ M thin can also be calculated analogously for complicated shapes of the substrate dilution regions 60 and compensated for by an excess amount of substance ⁇ M thick in the thickening region.
  • the preparation of paper base substrates according to the invention can be carried out with a dewatering screen whose surface topography essentially represents the negative of the desired paper topography.
  • a dewatering screen whose surface topography essentially represents the negative of the desired paper topography.
  • FIGS. 8 (a) to (d) explained in more detail.
  • the dewatering screen 80 has corresponding elevations 82 in the desired partial areas.
  • the detachment of the paper web and the other process steps, such as drying, pressing, gluing, etc. you get the in Fig. 8 (b) shown in the corresponding cross section Paper web 50, which has the desired substrate dilutions 60 in the areas of the sieve elevations 82.
  • continuous holes 62 with a sharp edge are produced in the area of the substrate dilutions 60 by laser cutting 84 or punching, as in FIG Fig. 8 (c) shown.
  • the holes can also be produced during sheet formation and have characteristic edge irregularities which result from an irregular accumulation of fibers in the edge region.
  • hole types having the shape of the desired holes 62 may be provided in the raised portions 82 of the dewatering screen.
  • Fig. 8 (d) shows a cross section through the dewatering screen 80 in areas that serve to produce substrate thickening 64.
  • the dewatering screen 80 has corresponding recesses 86 in the desired subareas which, after the addition of fiber mass, the detachment of the paper web and the further method steps already mentioned above, produce the desired substrate thickenings 64 in the paper web.
  • the dewatering screen 80 can have substructures for the reliable production of large-area paper thickenings in the screen recesses or in the recessed area of an injection-molded insert. Further details and background are given in the German patent application incorporated by reference in the present application.
  • the hole tracks in other designs may also include third subregions in which the substrate thickness is substantially unchanged from the outside.
  • the substrate thickness in the third subregions ideally coincides with the substrate thickness of the outer region, depending on the size and the arrangement of the third and second subregions, the substrate thickness of the third subregions may be slightly different than the substrate thickness of the outer region as a result of the production.
  • Fig. 9 shows for illustration a single use 90, which basically like the single 52 of the Fig. 5 is formed.
  • the second subregion 58 with the substrate thickenings 64 in the case of the single-use 90 is interrupted by web-shaped third subregions 92, in which the substrate thickness corresponds to the substrate thickness of the outer region 66.
  • the third subregions 92 form a mark of authenticity, namely a bar code 94 in which, for example, the denomination of the banknote 10 to be generated can be coded.
  • Non-linear third subregions also come into consideration according to the invention.
  • Fig. 9 shows Fig. 9 in the hole track 54 in addition to the webs 92 and nubs 96, which also represent third portions with the substrate thickness of the outer region 66.
  • the dot pattern formed by the nubs 96 represents braille text information.
  • additional information can be integrated into the base substrate or the banknote, which can serve, for example, as a reading aid for the visually impaired and / or as a further authenticity feature.
  • Such third subregions offer not only increased counterfeit security but also advantages in the production of the base substrates.
  • the relatively large area of the substrate thickening 64 leads to correspondingly large recesses 86 in the dewatering screen 80.
  • the depressions 86 in the dewatering screen 80 are interrupted, thereby ensuring that sufficient paper fibers are retained in the depressions 86 during sheet formation become.
  • the interruptions of the depressions 86 in the dewatering screen 80 advantageously produce further authenticity features in the base substrate, such as the bar code 94 or Braille 96.
  • the third subregions represent only decorative and / or haptically detectable patterns within the substrate thickening, for example a Crosswalk, checkerboard or check pattern.

Landscapes

  • Paper (AREA)
  • Laminated Bodies (AREA)

Claims (27)

  1. Substrat de base pour un billet de banque à film composite sous la forme d'une feuille rectangulaire avec une direction longitudinale et une direction transversale perpendiculaire à celle-ci, qui présente au moins une piste perforée en forme de bande, qui s'étend le long de la direction longitudinale ou la direction transversale du substrat de base, qui contient dans des premières zones partielles un amincissement de substrat et dans l'amincissement de substrat un trou traversant à travers le substrat de base et qui contient dans des deuxièmes zones partielles un épaississement de substrat.
  2. Substrat de base selon la revendication 1, caractérisé en ce que le substrat de base présente à l'extérieur des pistes perforées en forme de bandes une première épaisseur de substrat S0 essentiellement constante et en ce que l'épaisseur du substrat au niveau de l'épaississement de substrat augmente jusqu'à une deuxième épaisseur de substrat Sthick, qui est compris entre 1,05*S0 et 2,0*S0, de préférence entre 1,10*S0 et 1,60*S0, de manière encore préférée entre 1,20*S0 et 1,40*S0.
  3. Substrat de base selon la revendication 2, caractérisé en ce que l'épaisseur de substrat au niveau de l'épaississement du substrat augmente dans une direction perpendiculaire à la piste perforée en forme de bande en continu à partir de la première épaisseur du substrat S0 jusqu'à la deuxième épaisseur du substrat Sthick et diminue ensuite de nouveau en continu jusqu'à la première épaisseur de substrat S0.
  4. Substrat de base selon au moins une des revendications 1 à 3, caractérisé en ce que l'épaisseur de substrat au niveau de l'amincissement de substrat diminue en continu dans une direction perpendiculaire à la piste perforée en forme de bande de la première épaisseur de substrat S0 à une troisième épaisseur de substrat Sthin sur le bord du trou traversant et ensuite augmente de nouveau en continu jusqu'à à la première épaisseur de substrat S0.
  5. Substrat de base selon au moins une des revendications 1 à 4, caractérisé en ce que au moins une piste perforée en forme de bande présente une largeur comprise entre 0,2 cm et 10,0 cm, de préférence entre 0,5 cm et 3,0 cm.
  6. Substrat de base selon au moins une des revendications 1 à 5, caractérisé en ce que le substrat de base contient plusieurs pistes perforées parallèles.
  7. Substrat de base selon au moins une des revendications 1 à 6, caractérisé en ce que pour la quantité de matière manquante dans l'amincissement de substrat de la piste perforée par rapport à la zone externe à l'extérieur de la piste perforée ΔMthin et la quantité de matière en surpluspar rapport à la zone extérieure dans l'épaississement de substrat ΔMthick, le rapport ΔMthick = 0,1*ΔMthin... 2,0*Mtnin, de préférence ΔMthick = 0,5*ΔMthin..., 1,5*ΔMthin, de manière encore préférée ΔMthick = 0,8*Mthin...1,3*Mthin s'applique.
  8. Substrat de base selon au moins une des revendications 1 à 7, caractérisé en ce que le trou traversant présente un bord clairement délimité.
  9. Substrat de base selon au moins une des revendications 1 à 7, caractérisé en ce que le trou traversant présente un bord produit lors de la fabrication du papier avec des irrégularités caractéristiques.
  10. Substrat de base selon au moins une des revendications 1 à 9, caractérisé en ce que les pistes perforées en forme de bandes sont constituées respectivement des premières zones partielles amincies et des deuxième zones partielles épaissies.
  11. Substrat de base selon au moins une des revendications 1 à 9, caractérisé en ce que les pistes perforées en forme de bande présentent à côté des premières et deuxième zones partielles également une troisième zone partielle avec une épaisseur de substrat essentiellement invariable par rapport à la zone externe à l'extérieur de la piste perforée, dans lequel les troisièmes zones partielles sont disposées soit en totalité à l'intérieur des deuxièmes zones partielles, soit représentent des interruptions des deuxièmes zones partielles transversalement à la piste perforée en forme de bande.
  12. Substrat de base selon la revendication 11, caractérisé en ce que les troisièmes zones partielles sont configurées sous forme de gradins, de motifs non linéaires ou sous la forme d'un motif.
  13. Substrat de base selon la revendication 11 ou 12, caractérisé en ce que les troisièmes zones partielles dans le substrat de base forment un signe distinctif d'authenticité, notamment un codage comme un code-barres ou une écriture braille en une ou deux dimensions ou en ce que les troisièmes zones partielles forment un motif dans le substrat de base, notamment un motif de bande.
  14. Substrat de base selon au moins une des revendications 11 à 13, caractérisé en ce que des troisièmes zones partielles formées irrégulièrement sont réparties dans les deuxièmes zones partielles.
  15. Substrat de base selon au moins une des revendications 1 à 14, caractérisé en ce que le substrat de base est formé en papier, notamment en papier de coton ou en papier avec une fraction de fibres polymères.
  16. Document de valeur, notamment billet de banque à feuilles composites avec un substrat de base selon une des revendications 1 à 15.
  17. Document de valeur selon la revendication 16, caractérisé en ce que le document de valeur est configuré au moins en deux couches et contient au moins une couche de feuille et au moins un substrat de base selon une des revendications 1 à 15.
  18. Document de valeur selon la revendication 16 ou 17, caractérisé en ce que le document de valeur est configuré au moins en trois couches et contient au moins un substrat de base selon une des revendications 1 à 15, qui est incorporé entre deux couches de feuilles.
  19. Document de valeur selon la revendication 18, caractérisé en ce que le trou traversant du substrat de base et les deux couches de feuilles incorporées définissent une chambre creuse, qui est remplie avec un matériau de remplissage avec une caractéristique de sécurité et/ou présente une impression située à l'intérieur.
  20. Procédé de fabrication d'un substrat de base selon une des revendications 1 à 15, dans lequel le substrat de base est produit dans une machine à papier avec un tamis d'égouttage sous la forme d'une feuille rectangulaire avec une direction longitudinale et une direction transversale perpendiculaire à celle-ci et est pourvu d'au moins une piste perforée en forme de bande, qui s'étend le long de la direction longitudinale ou de la direction transversale du substrat de base, dans lequel dans des premières zones partielles de la piste perforée un amincissement de substrat est produit et dans l'amincissement de substrat un trou traversant à travers le substrat de base est produit et dans lequel dans des deuxièmes zones partielles de la piste perforée un épaississement de substrat est produit.
  21. Procédé selon la revendication 20, caractérise en ce que les amincissements de substrat sont produits pendant la fabrication du papier, de préférence par l'intermédiaire de méplats prévus sur le tamis d'égouttage.
  22. Procédé selon la revendication 21, caractérisé en ce que les épaississements de substrat sont produits pendant la fabrication du papier de préférence par l'intermédiaire de cavités prévues sur le tamis d'égouttage.
  23. Procédé selon la revendication 21 ou 22, caractérisé en ce que le trou traversant est produit à l'intérieur des amincissements de substrat pendant la fabrication du papier.
  24. Procédé selon au moins une des revendications 20 à 22, caractérisé en ce que le trou traversant est produit après la fabrication du papier par découpe ou découpe à l'emporte-pièce.
  25. Procédé de fabrication d'un document de valeur, dans lequel un substrat de base selon une des revendications 1 à 15 est masqué avec au moins une feuille, le substrat de base masqué est enroulé sur un rouleau à des fins de durcissement d'adhésif de masque et à partir du substrat de base masqué durci un document de valeur, notamment un billet de banque à feuilles composites, est produit.
  26. Tamis d'égouttage pour la fabrication d'un substrat de base selon une des revendications 1 à 15, qui présente au moins une piste perforée en forme de bande, qui s'étend le long de la direction longitudinale de la direction transversale du tamis d'égouttage, dans lequel la piste perforée en forme de bande contient dans des premières zones partielles des méplats pour produire des amincissements de substrat dans le substrat de base et contient dans des deuxièmes zones partielles des cavités pour produire des épaississements de substrat dans le substrat de base.
  27. Tamis d'égouttage selon la revendication 26, caractérisé en ce que dans les premières zones partielles un type de trou pour la production d'un trou traversant est prévu.
EP12008410.8A 2011-12-22 2012-12-18 Substrat de base pour un billet de banque à film composite Not-in-force EP2607550B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102011122113A DE102011122113A1 (de) 2011-12-22 2011-12-22 Basissubstrat für eine Folienverbund-Banknote
DE102012024768.0A DE102012024768A1 (de) 2012-12-18 2012-12-18 Substratbogen für die Herstellung von Sicherheits- und Wertdokumenten
DE201210024774 DE102012024774A1 (de) 2012-12-18 2012-12-18 Entwässerungssieb für die Papierherstellung

Publications (3)

Publication Number Publication Date
EP2607550A1 EP2607550A1 (fr) 2013-06-26
EP2607550A8 EP2607550A8 (fr) 2013-07-31
EP2607550B1 true EP2607550B1 (fr) 2017-02-22

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Application Number Title Priority Date Filing Date
EP12008410.8A Not-in-force EP2607550B1 (fr) 2011-12-22 2012-12-18 Substrat de base pour un billet de banque à film composite

Country Status (1)

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EP (1) EP2607550B1 (fr)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10163381A1 (de) * 2001-12-21 2003-07-03 Giesecke & Devrient Gmbh Sicherheitspapier sowie Verfahren und Vorrichtung zu seiner Herstellung
DE10243653A1 (de) 2002-09-19 2004-04-01 Giesecke & Devrient Gmbh Sicherheitspapier
DE102010034693A1 (de) * 2010-08-18 2012-02-23 Giesecke & Devrient Gmbh Verfahren zur Herstellung eines Sicherheitspapiers sowie Rundsieb dafür

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

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EP2607550A8 (fr) 2013-07-31
EP2607550A1 (fr) 2013-06-26

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