WO2019242881A1 - Bande de papier de sécurité à filigrane et tamis d'égouttage pour la fabrication de papier à filigrane - Google Patents

Bande de papier de sécurité à filigrane et tamis d'égouttage pour la fabrication de papier à filigrane Download PDF

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Publication number
WO2019242881A1
WO2019242881A1 PCT/EP2019/000194 EP2019000194W WO2019242881A1 WO 2019242881 A1 WO2019242881 A1 WO 2019242881A1 EP 2019000194 W EP2019000194 W EP 2019000194W WO 2019242881 A1 WO2019242881 A1 WO 2019242881A1
Authority
WO
WIPO (PCT)
Prior art keywords
watermark
watermarks
reliefs
areas
individual
Prior art date
Application number
PCT/EP2019/000194
Other languages
German (de)
English (en)
Inventor
Andreas Aigner
Matthias Pfeiffer
Andreas HÄNELT
Astrid DREXLER
Bernd Stumbeck
Christian FAULSTICH
Original Assignee
Giesecke+Devrient Currency Technology 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
Application filed by Giesecke+Devrient Currency Technology Gmbh filed Critical Giesecke+Devrient Currency Technology Gmbh
Priority to EP19732899.0A priority Critical patent/EP3810855A1/fr
Publication of WO2019242881A1 publication Critical patent/WO2019242881A1/fr

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Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F1/00—Wet end of machines for making continuous webs of paper
    • D21F1/44—Watermarking devices

Definitions

  • the invention relates generally to watermarking paper and drainage screens for the production thereof.
  • the invention relates to a security paper web with a plurality of individual blanks which are arranged in a grid-like manner “ along a longitudinal direction and a transverse direction of the security paper web, the security paper web being provided with the individual uses with watermarks, which at least in some areas are high-resolution, multi-stage Watermarks and / or water filigree marks are formed.
  • the invention also relates to a drainage screen for the production of paper with watermarks, with a carrier screen with a plurality of individual usable areas which are arranged in a grid-like manner along a longitudinal direction and a transverse direction of the drainage screen and which each produce one of a plurality of individual usages of the watermark paper, whereby the drainage screen is provided with watermark reliefs with its individual useful areas, which are formed at least in partial areas as high-resolution multi-level watermark reliefs and / or as filigree watermark reliefs.
  • EP 2899 314 A1 describes a drainage screen for generating watermarks with filigree dots or lines (“filigree watermark”).
  • the drainage screen contains a water drawing insert with a filigree water sign relief, ie a relief that has a plurality of filigree elements in the form of point and / or line-shaped motif elements with a line width of 0.4 mm or less.
  • the object of the invention is to provide a security paper web of the type mentioned at the outset with visually attractive watermarks with a high level of security against forgery.
  • a corresponding drainage screen for the production of watermark paper is also to be provided.
  • the watermark reliefs are formed entirely by high-resolution multi-level watermark reliefs and / or filigree water reliefs.
  • the watermark reliefs are formed in the first partial areas by high-resolution, multi-level watermark reliefs and / or filigree watermark reliefs, while in second partial areas they are formed by embossed reliefs.
  • the first and second sections are advantageously formed alternately along the longitudinal or transverse direction of the drainage screen and preferably adjoining one another. If the first and second partial areas are arranged at a distance, the mutual distances are preferably small in order to ensure a continuous visual impression of the watermarks generated. The distances are in particular less than half of 10 mm, preferably less than 5 mm. If the first and second partial areas are designed without a distance, they can directly adjoin one another or can also partially overlap.
  • the first partial areas are arranged within the second partial areas. It is particularly advantageous to provide a transition area between the first and second sub-areas, in which the spatial resolution of the watermark relief from the high spatial resolution of the high-resolution, multi-level watermark Chenreliefs or the filigree watermark relief passes to the lower spatial resolution of the screen embossing. This enables a smooth transition to be created without visual disturbing jumps in the spatial resolution of the watermark.
  • the partial areas spanning the individual usable areas contain high-resolution, multi-level watermark reliefs and / or filigree water reliefs.
  • the partial areas spanning the individual useful areas can also consist of high-resolution multi-level watermark reliefs and / or filigree watermark reliefs.
  • the partial areas spanning the individual usable areas span two or four individual usable areas, preferably symmetrically.
  • the high-resolution, multi-level watermark reliefs and / or filigree watermark reliefs are formed in advantageous configurations by injection-molded watermark inserts, 3D-printed watermark inserts, milled watermark inserts, multi-layer perforated sheet inserts and / or perforated sheets. Even though this is currently still relatively expensive and involves a long manufacturing time, it is also basically possible to produce the entire drainage screen in 3D printing. If the dewatering sieve is a circular sieve, it can also be provided that one of the above-mentioned watermark inserts is designed to run continuously around the circular sieve.
  • the watermark reliefs advantageously contain high-resolution multistage watermark reliefs, in particular high-resolution multistage watermark reliefs with elevations and depressions with sharp edges Edge width of 0.6 mm or less, preferably 0.5 mm or less, particularly preferably 0.4 mm or less.
  • the watermark reliefs further advantageously contain filigree elements, in particular filigree elements with elevations and / or depressions in the form of point and / or line-shaped motif elements with a stroke width of 0.4 mm or less.
  • the watermarks are registered for the individual uses and, at least in some areas, the individual uses are arranged across the security paper web.
  • the watermarks are formed entirely by high-resolution, multi-level watermarks and / or filigree watermarks.
  • the watermarks are formed in the first partial areas by high-resolution, multi-level watermarks and / or filigree watermarks, while in the second partial areas they are formed by embossed watermarks.
  • the first and second subareas are advantageously formed alternately along the longitudinal or transverse direction of the security paper web and preferably adjoin one another. If the first and second partial areas are arranged at a distance, the mutual distances are preferably small in order to provide a continuous visual impression of the watermarks.
  • the distances are in particular below 10 mm, preferably below 5 mm.
  • the first and second sections are without Formed at a distance, they can connect directly to each other or overlap partially.
  • the first partial areas are arranged within the second partial areas. It is particularly advantageous to provide a transition area between the first and second partial areas, in which the spatial resolution of the watermark changes from the high spatial resolution of the high-resolution multi-level watermark or the filigree watermark to the lower spatial resolution of the embossed watermark. This enables a smooth transition to be created without visual disturbing jumps in the spatial resolution of the watermarks.
  • the partial areas spanning the individual uses contain high-resolution, multi-level watermarks and / or filigree watermarks.
  • the sub-areas spanning the individual uses can also consist of multi-level watermarks and / or filigree watermarks.
  • the partial areas spanning the individual areas span two or four individual areas, preferably overlap symmetrically.
  • the watermarks advantageously contain high-resolution multistage watermarks, in particular high-resolution multistage watermarks with sharp edges with an edge width of 0.6 mm or less, preferably 0.5 mm or less, particularly preferably 0.4 mm or less.
  • the watermarks furthermore advantageously contain filigree watermarks, in particular filigree watermarks in the form of point and / or line-shaped motif components with a stroke width of 0.4 mm or less.
  • watermark reliefs of the drainage screen can be combined with other known watermark types, such as E types.
  • the watermark motifs represented by the first or second sub-areas are fundamentally independent of one another, but can also be related to one another, complement one another or partially represent the same information.
  • the watermark motifs can also be related to other motifs generated by imaging processes such as laser printing, letterpress printing, letterpress printing, flat or digital printing, embossing or micro-optics.
  • the Add the motifs mentioned to a new motif or repeat a motif This also applies to motif combinations with motifs of inserted or applied film elements, such as security strips, security threads or applied patches.
  • FIG. 1 is a schematic representation of a bank note with a water mark according to an embodiment of the invention
  • FIG. 3 shows a drainage screen for the production of the paper web
  • FIG. 1 shows a schematic illustration of a banknote 10 with a watermark 12.
  • the watermark 12 is arranged with the outline of the banknote 10 and uses the entire height of the banknote 10.
  • the watermark 12 of FIG. 1 consists of a low-resolution screen embossing watermark 16, here in the form of a graphic background pattern, which is combined with a high-resolution, multi-stage watermark 14, here in the form of a portrait.
  • Such a bank note 10 is produced from a single use 24 of a paper web 20 illustrated in FIG. 2.
  • the paper web 20 contains, for example, two webs 22 lying next to one another in the cross-machine direction CD, which are each subdivided into a plurality of sheets 24 in the machine direction MD.
  • Each sheet 24 in turn contains a plurality of individual blanks 26 in the form of a grid, which are shown in FIG. 2 for the sake of simplicity in only one of the sheets 24.
  • the paper web 20 is produced on a dewatering screen 30, for example of the type shown in FIG. 3.
  • the drainage screen 30 is a circular screen, which is shown in FIG. 3 as a whole in a perspective view.
  • the support screen 32 of the drainage screen 30 contains a plurality of arch areas 34 and in the sheet areas arranged in a grid-like manner individual use areas 36, which each serve to produce a sheet 24 or the individual sheets 26 of the paper web 20.
  • the dewatering screen 30 contains watermark reliefs in the manner described in more detail below, which are at least partially formed by high-resolution multi-stage watermark reliefs and / or filigree watermark reliefs, but can also partially be formed by embossed reliefs.
  • FIG. 4 shows a first exemplary embodiment of a paper web 20 according to the invention with a plurality of individual blanks 26 in the cutout.
  • the watermarks 12 contain first and second subregions 14, 16, which are shown in the figure only schematically by different hatches, regardless of the motif specifically shown.
  • the first portions 14 provide thereby high resolution, multi-level watermarks and / or W as filigree ser Lake and the second sections 16 and low resolution Sieboniage- water calibrate Z represents.
  • the first and second portions 14, 16 of the watermark 12 are alternately arranged long corresponds to the cross-machine direction CD of the web 20, wherein the water Sieboniage- calibrate Z 16 each in the area inside of a panel are arranged 26th
  • the high-resolution, multi-level watermarks or the filigree watermarks 14, on the other hand, are arranged such that they each have two individual blanks 26 in the cross-machine direction CD. grip, preferably overlap symmetrically.
  • the partial areas 14, 16 are arranged registered to the outline of the individual benefit 26, so that the partial areas 14 and 16 are in the same place in each of the individual benefits. With this design, all individual blanks 26 are provided with identical watermark designs.
  • first and second partial regions 14, 16 can also be arranged alternately along the machine longitudinal direction MD of the paper web 20.
  • the second sub-areas 16 each extend over a little more than two individual panels 26 in the cross-machine direction CD of the paper web 20, with inside of each of the second sub-areas 16 two first sub-areas 14 ( high-resolution, multi-level watermarks and / or filigree watermarks) are provided, which lie exclusively in the interior of the individual use 26.
  • the partial areas 14, 16 are registered to outline the individual benefits, so that the sequence of the partial areas 14 and 16 is repeated after three individual benefits in the cross-machine direction.
  • the embodiment of FIG. 6 is a modification of the embodiment of FIG. 5, in which the watermark subregions 14, 16 are arranged such that they additionally each have two individual uses 26 in the machine longitudinal direction Spill over to MD.
  • the partial areas 16 also extend, as in FIG. 5, over more than two individual blanks in the cross-machine direction CD and therefore connect eight individual blanks to one another.
  • the partial areas 14, 16 are registered for the outline of the individual benefits, so that the sequence of the partial areas 14 and 16 is repeated after three individual benefits in the cross machine direction CD and after each individual benefit in the machine longitudinal direction MD.
  • the first and second partial regions 14, 16 of the watermark 12 are arranged in an alternating manner, as in FIG. 4, along the machine transverse direction CD of the paper web 20.
  • the first and second subregions 14, 16 can be arranged at a distance, as shown in FIG. 4, or directly adjacent to one another as in FIG. 7.
  • the first partial areas 14 are arranged such that they each overlap four individual panels 26, while the partial regions 16 each overlap two individual panels 26 in the machine longitudinal direction MD.
  • the partial areas 14, 16 are all registered for the outline of the individual benefits 26.
  • the partial regions 14 and 16 are arranged symmetrically to the longitudinal or transverse edges of the individual panels 26, so that in this configuration all the individual panels 26 are provided with identical watermark designs.
  • FIG. 8 is a modification of the embodiment of FIG. 7, in which the partial areas 14, 16 are arranged asymmetrically in the cross-machine direction CD of the paper web 20. It goes without saying that the partial areas 14, 16 can alternatively or additionally also be arranged asymmetrically in the machine longitudinal direction MD.
  • the first partial regions 14 are arranged such that they each have four Individual benefits 26 reach over symmetrically, while the second sub-areas 16 each lie in the interior of the individual benefits 26.
  • the partial areas 14, 16 are all registered for the outline of the individual benefits.
  • the partial regions 14 are arranged symmetrically to the longitudinal and transverse edges of the individual panels 26, so that all individual panels 26 are provided with identical watermark designs. It goes without saying that the partial regions 14 can also be arranged asymmetrically in the cross-machine direction and / or the longitudinal direction of the machine, as a result of which different individual-use configurations can also arise.
  • the first partial areas 14, that is to say the partial areas with high-resolution, multi-level watermarks and / or filigree water characters, are designed to span several individual uses 26 (as shown in FIGS. 4, 6-9).
  • the second partial areas 16, that is to say the partial areas with screen embossing watermarks can be designed to encompass individual uses (as shown in FIGS. 1, 5-8). So probably first and second sub-areas can be provided in the interior of the individual benefits (see Fig. 1, 4, 9).
  • Figure 10 shows in (a) to (i) different arrangements of the resulting watermark areas 18 on cut individual uses 26.
  • the watermark areas 18 can have first partial areas 14 with high-resolution, multi-level watermarks and / or filigree watermarks, second partial areas 16 with low-resolution screen embossing Contain watermarks or combinations of first and second partial areas 14, 16.
  • FIG. 11 shows a section of the carrier screen 32 of a drainage screen 30 with which a paper web 20 according to FIG. 4 can be produced.
  • the carrier screen 32 contains a plurality of individual groove Zen areas 36, which are arranged in a grid pattern along the machine direction MD and the machine cross direction CD of the dewatering screen 30 (FIG. 3).
  • the individual benefit areas 36 each produce an associated individual benefit 26 of the paper web 20 during paper production.
  • the drainage screen 30 with its individual useful areas 36 is provided with watermark reliefs 42 which contain different first and second partial areas 44, 46.
  • the first partial areas 44 generate the high-resolution, multi-level watermarks or the filigree watermarks 14 of FIG. 4 and are formed, for example, by injection-molded watermark inserts in the screen fabric. 3D-printed watermark inserts, milled watermark inserts, multi-layer perforated sheet inserts and / or perforated sheets are also possible.
  • the second partial areas 46 are formed by screen embossing of the carrier screen 32 and produce the low-resolution screen embossing water characters 16 from FIG. 4.
  • High and low resolution watermark reliefs or watermarks can also merge smoothly in a transition area.
  • the first partial areas 44 can also be arranged on a dewatering screen 30 within the second partial areas 46 (corresponding to FIG. 5 or 6) and thereby with a transition area 50 for a smooth transition from the high-resolution partial area 44 of the FIG Watermark reliefs for the low-resolution partial area 46 of the watermark relief.
  • the high spatial resolution possible there is used only in the inner surface area 44.
  • the spatial Resolution is reduced and adapted to the lower spatial resolution of screen embossing 46, so that a smooth transition arises in the generated watermark without visual disturbing jumps in the spatial resolution.
  • Such a transition region can also be used in the case of first and second partial regions which adjoin one another in one direction, as are illustrated, for example, in FIGS. 7 and 8.
  • a transition area 50 is provided between a first partial area 44 with a watermark relief of high spatial resolution and a second partial area 46 with an embossed watermark relief with lower spatial resolution, in which the spatial resolution depends on the high value of the Subarea 44 changes to the lower value of subarea 46, so that there is a smooth transition in the generated watermark without visual disruptive jumps in spatial resolution.
  • the transition region 50 is also advantageously formed together with the high-resolution partial region 44 in a watermark insert 52.
  • the motif provided for the transition area 50 can be reduced to a desired spatial resolution, for example by soft focus or by low-pass filtering of the image information.

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Abstract

L'invention concerne une bande de papier de sécurité (20) comportant une pluralité d'emplacements individuels (26) qui sont disposés en forme de grille le long d'une direction longitudinale (MD) et d'une direction transversale (QD) de la bande de papier de sécurité. La bande de papier de sécurité (20) pourvue des emplacements individuels (26) est munie de filigranes (12) qui sont formés au moins dans des sous-régions (14) sous forme de filigranes multi-niveaux à haute résolution et/ou de signes en filigrane. Selon l'invention, les filigranes (12) sont enregistrés aux emplacements individuels (26) et les emplacements individuels (26) sont disposés sur la bande de papier de sécurité (20) au moins dans certaines zones. L'invention comprend également un tamis d'égouttage (30) permettant de fabriquer un papier filigrané correspondant.
PCT/EP2019/000194 2018-06-22 2019-06-19 Bande de papier de sécurité à filigrane et tamis d'égouttage pour la fabrication de papier à filigrane WO2019242881A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP19732899.0A EP3810855A1 (fr) 2018-06-22 2019-06-19 Bande de papier de sécurité à filigrane et tamis d'égouttage pour la fabrication de papier à filigrane

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102018004995.8A DE102018004995A1 (de) 2018-06-22 2018-06-22 Sicherheitspapierbahn mit Wasserzeichen und Entwässerungssieb zur Herstellung von Wasserzeichenpapier
DE102018004995.8 2018-06-22

Publications (1)

Publication Number Publication Date
WO2019242881A1 true WO2019242881A1 (fr) 2019-12-26

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ID=67003434

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Application Number Title Priority Date Filing Date
PCT/EP2019/000194 WO2019242881A1 (fr) 2018-06-22 2019-06-19 Bande de papier de sécurité à filigrane et tamis d'égouttage pour la fabrication de papier à filigrane

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Country Link
EP (1) EP3810855A1 (fr)
DE (1) DE102018004995A1 (fr)
WO (1) WO2019242881A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1466755A2 (fr) * 2003-04-03 2004-10-13 De La Rue International Limited Filigrane pour le renforcement des coins d'une feuille
EP2895310A1 (fr) 2012-09-13 2015-07-22 Giesecke & Devrient GmbH Outil de moulage par injection et processus correspondant destinés à former un insert pour filigranes au sein d'un crible d'égouttage
EP2899314A1 (fr) 2014-01-28 2015-07-29 Giesecke & Devrient GmbH Toile d'égouttage pour la fabrication de papier doté d'un filigrane et procédé de fabrication de ladite toile
EP2899312A1 (fr) 2014-01-28 2015-07-29 Giesecke & Devrient GmbH Toile d'égouttage pour la fabrication de papier doté d'un filigrane à deux tons et procédé de fabrication de ladite toile
WO2016075444A1 (fr) * 2014-11-10 2016-05-19 De La Rue International Limited Élément de formation de filigrane

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1466755A2 (fr) * 2003-04-03 2004-10-13 De La Rue International Limited Filigrane pour le renforcement des coins d'une feuille
EP2895310A1 (fr) 2012-09-13 2015-07-22 Giesecke & Devrient GmbH Outil de moulage par injection et processus correspondant destinés à former un insert pour filigranes au sein d'un crible d'égouttage
EP2899314A1 (fr) 2014-01-28 2015-07-29 Giesecke & Devrient GmbH Toile d'égouttage pour la fabrication de papier doté d'un filigrane et procédé de fabrication de ladite toile
EP2899312A1 (fr) 2014-01-28 2015-07-29 Giesecke & Devrient GmbH Toile d'égouttage pour la fabrication de papier doté d'un filigrane à deux tons et procédé de fabrication de ladite toile
WO2016075444A1 (fr) * 2014-11-10 2016-05-19 De La Rue International Limited Élément de formation de filigrane

Also Published As

Publication number Publication date
DE102018004995A1 (de) 2019-12-24
EP3810855A1 (fr) 2021-04-28

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