EP2115217B1 - Tamis d'égouttage et son procédé de fabrication - Google Patents

Tamis d'égouttage et son procédé de fabrication Download PDF

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Publication number
EP2115217B1
EP2115217B1 EP07846991.3A EP07846991A EP2115217B1 EP 2115217 B1 EP2115217 B1 EP 2115217B1 EP 07846991 A EP07846991 A EP 07846991A EP 2115217 B1 EP2115217 B1 EP 2115217B1
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EP
European Patent Office
Prior art keywords
watermark
insert
level
dewatering screen
watermark insert
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.)
Active
Application number
EP07846991.3A
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German (de)
English (en)
Other versions
EP2115217A1 (fr
Inventor
André Gregarek
Andreas HÄNELT
Bernhard Wiedner
Theodor Burchard
Andreas Aigner
Günther WILD
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 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
Application filed by Giesecke and Devrient GmbH filed Critical Giesecke and Devrient GmbH
Priority to SI200731448T priority Critical patent/SI2115217T1/sl
Priority to PL07846991T priority patent/PL2115217T3/pl
Publication of EP2115217A1 publication Critical patent/EP2115217A1/fr
Application granted granted Critical
Publication of EP2115217B1 publication Critical patent/EP2115217B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • 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
    • 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
    • D21F1/0027—Screen-cloths
    • D21F1/0036—Multi-layer screen-cloths
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F11/00—Processes for making continuous lengths of paper, or of cardboard, or of wet web for fibre board production, on paper-making machines
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F11/00—Processes for making continuous lengths of paper, or of cardboard, or of wet web for fibre board production, on paper-making machines
    • D21F11/006—Making patterned 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

Definitions

  • the invention relates to a dewatering screen for the production of paper with multi-level watermark, with a carrier screen which has a multi-level relief in the form of the watermark to be generated in a partial area.
  • the invention further relates to a method for producing such a dewatering screen and to a method for producing a paper having a multi-level watermark using such a dewatering screen.
  • multi-level In the production of paper with watermarks, a distinction is made between two-level watermarks with a strong light-dark effect and multi-level watermarks with smooth transitions between light and dark and detailed representation of a motif.
  • multi-level is to be understood in contrast to two-stage light-dark watermark and includes all watermarks with more than two brightness levels and includes in particular watermarks with continuous light-dark transitions.
  • a watermark paper is described, wherein the watermark is designed as a multi-tone watermark and has lighter areas, which are arranged like a raster image.
  • a security paper having a security zone, the security zone comprising cells whose thickness differs from the thickness of the paper around the cells.
  • the present invention seeks to provide a Enticass mecanicssieb of the aforementioned type, which avoids the disadvantages of the prior art.
  • the dewatering screen should enable the production of paper with multi-level watermarks with high level of detail and, if possible, can also be used on wire or oblique screen paper machines.
  • dewatering screen having the features of the independent claims.
  • a method for producing inventive drainage screens, a watermark insert, an injection mold for the production of a watermark insert, a method for producing a paper, a security paper and a value document with multi-level watermark are specified in the independent claims. Further developments of the invention are the subject of the dependent claims.
  • the multi-level relief is formed by an injection-molded, perforated watermark insert.
  • the use according to the invention of the injection molding method allows the production of multi-level watermark inserts with extremely detailed relief representations.
  • the watermark insert is welded or glued to the carrier screen.
  • the watermark insert may advantageously have a knobbed edge on which it is connected to the carrier screen.
  • the watermark insert is injected directly into the carrier screen.
  • the watermark insert can be arranged in a cut-out region of the carrier screen and connected to it only in an edge region. The watermark insert can then be lowered, in particular, so that the maximum height of the watermark insert essentially corresponds to the screen level.
  • the watermark insert is expediently formed from a hydrophobic plastic, for example from polyoxymethylene.
  • the plastic may be added with wear-reducing additives.
  • the additives are glass fibers, glass beads or carbon fibers.
  • the carrier screen advantageously has a screen fabric with at least one system of interwoven, longitudinally running warp threads and weft threads extending transversely thereto.
  • the screen fabric may include a metal fabric, in particular a bronze fabric, a metal-plastic mixed fabric, in particular a bronze-plastic blended fabric, or a pure plastic fabric.
  • the metal-plastic mixed fabric or the plastic fabric as plastic preferably polyester, a high temperature resistant thermoplastic material from the group of polyether ketones, in particular polyetheretherketone, or a other higher quality plastic.
  • Polyethylene terephthalate (PET) is particularly preferred.
  • PET Polyethylene terephthalate
  • the plastic of the watermark insert and the plastic of the mesh fabric are matched with advantage in terms of their melting or glass transition temperatures matched.
  • the melting or glass transition temperature of the screen mesh plastic by more than 40 °, preferably more than 60 °, more preferably lie more than 80 ° above the melting or glass transition temperature of the watermark insert plastic.
  • it may again be advantageous that the melting or glass transition temperatures of the plastics used are substantially equal.
  • the transition region between the watermark insert and the carrier screen is preferably designed in the form of a motif or a pattern.
  • the edge of the watermark insert may be designed in the form of a motif or a pattern.
  • the edge of the watermark insert may be shaped such that there is no hard edge in the transition region but a soft transition.
  • the watermark insert has indentations on its rear side which make it possible to bend the watermark insert in at least one direction.
  • the notches thus have a kind of hinge effect.
  • This has the advantage that the flexibility of the insert can be adapted to the flexibility of the screen. Especially for round screens or screens in long or oblique screen paper machines, which are guided over rollers with narrower radii, increased flexibility in use watermark inserts.
  • the watermark insert preferably has a plurality of perforations that ensure dewatering in papermaking.
  • the dimensions of these drainage perforations are chosen so small that they do not adhere to fibers during papermaking.
  • the perforations preferably taper towards the upper design surface of the watermark insert.
  • the perforations can take any shape, such as dots, stars, lines, etc.
  • the dimensions of the perforations can also be chosen so large that they are visually recognizable in the finished paper as dark marks, preferably marking points. In this case, it is advisable to arrange the perforations and thus the resulting markings in the form of characters, patterns or a coding.
  • perforations may be present in different areas. From area to area, the perforations may differ in the density of the breadboard and / or hole size. By means of the differently perforated areas areas with different brightness can be generated in the watermark. For example, the watermark becomes darker, the tighter the breadboard is. A tighter hole pattern leads to better drainage and consequently to the attachment of more fibers. The watermark thus becomes darker.
  • the perforations are preferably produced by means of a laser beam, in particular by means of an infrared laser, such as a CO 2 laser.
  • the watermark insert is thereby acted upon by its rear side facing away from the design surface with laser radiation, so that the design surface of the watermark insert tapered perforations arise.
  • the plastic can also be added additives that the Lasering the perforation easier.
  • the additives can absorb the wavelength of the laser radiation particularly well.
  • the screen mesh of the carrier screen is preferably squeezed into an injection mold and sealed, and the plastic is then in the sealed injection molding tool is injected with the carrier screen.
  • the screen fabric is clamped for the injection process in order to reduce the effects of different shrinkages during the cooling process.
  • the carrier screen can also be perforated together with the watermark insert.
  • the hot runner technique is used as injection molding.
  • the invention further includes a watermark insert for a dewatering screen of the type described, wherein the watermark insert is an injection molded, perforated plastic insert having a multi-level relief in the form of the watermark to be generated.
  • the invention also includes an injection mold for the production of a watermark insert for a dewatering screen of the type described, which has a multi-level relief in the form of the watermark to be generated.
  • the invention includes a dewatering screen of the type mentioned, in which the multi-level relief is formed by a deep-drawn, perforated watermark insert.
  • a dewatering screen of the type mentioned in the beginning has a multi-level relief, which is formed by a hot embossed, perforated watermark insert.
  • a separate watermark insert with a multi-level relief in the form of the watermark to be produced by deep-drawing or hot embossing can first be produced and perforated, and the separately produced watermark insert then connected to the support, in particular welded or glued.
  • a plastic plate can first be inserted into the carrier screen, and a watermark insert having a multi-level relief in the form of the watermark to be produced can be produced from the plastic plate used in the deep-drawing method or in the hot stamping method.
  • the watermark insert integrated in the carrier screen is perforated, optionally together with the carrier screen.
  • an already pre-perforated plastic plate can also be used so that the subsequent perforating step can be dispensed with.
  • the described drainage screens may be round screens or wire screens or inclined screens.
  • the invention further includes a method for producing a paper, in particular a security paper, with a multi-level watermark, in which the paper attachment takes place on one of the above-described dewatering screens with injection-molded, deep-drawn or hot stamped watermark inserts.
  • the invention also includes a security paper produced by the process according to the invention or value document with multi-level watermark.
  • a security paper produced by the process according to the invention or value document with multi-level watermark.
  • the security paper or the document of value in the area of the multi-level watermark with a transparent, preferably stabilizing film.
  • a multi-level watermark can be arranged in the region of a covering film of a banknote with a through opening and stabilized by the covering film.
  • the film may be provided with security elements, such as diffraction structures, liquid crystal layers, thin-film structures, fluorescent substances, magnetic, conductive and / or metallic layers.
  • Fig. 1 shows a schematic representation of a banknote 10, the multi-level watermark 12 high detail sharpness in the form of an in Fig. 1 just implied portraits.
  • the production of banknotes with such detail-sharp, multi-level watermarks is carried out according to the invention using one of the following described drainage sieves with injection-molded watermark inserts.
  • first separate watermark inserts are produced by injection molding and perforated.
  • the finished watermark inserts are then connected to the carrier screen, for example, welded or glued.
  • Fig. 2 (a) shows an injection mold 20 for producing a watermark insert 30, which has a multi-level relief 22 in inverted form of the watermark to be generated.
  • An injection-molded, hydrophobic plastic for example, polyoxymethylene added with wear-reducing additives, is melted, pressed at high pressure into the injection mold 20 and then cooled again.
  • the resulting watermark insert 30, which is in Fig. 2 (b) in supervision and in Fig. 3 (a) is shown in cross-section, shows a very detailed impression 32 of the given by the injection mold 20 image motif 22nd
  • nub-shaped recesses 24 For the attachment of the watermark insert 30 on the carrier screen, an edge of nub-shaped recesses 24 is provided in the injection mold 20, which form a circumferential knob edge 36 with raised fastening nubs 34 in the finished watermark insert 30.
  • the injection molding process allows the production of extremely detailed relief images 32 in the watermark inserts 30.
  • the design surface 46 with a shape is always shown in the figures, can with an appropriate design of the injection mold 20, of course, the back have a shape, so that, for example, a watermark insert with constant material thickness is formed.
  • the injection molded watermark insert 30 is provided with a plurality of perforations 40 by laser radiation 42, as in FIG Fig. 3 (b) shown.
  • the dimensions of the perforations are chosen so small that they do not adhere to fibers in paper production.
  • the perforation in areas with a high local material thickness, can be dispensed with, at least in part, so that in these areas, in principle, only little or no dehydration takes place, and only very few or no paper fibers are deposited. In these areas, a two-level watermark or a hole is thus generated.
  • the non-perforated areas with high material thickness act in this case as electric types. With such an application, detailed watermarks can be combined with two-level watermarks.
  • the dewatering perforations are advantageously drilled with a laser beam 42, for example, with the beam of a CO 2 laser of a wavelength of 10.6 microns.
  • the focus diameter of the laser corresponds to the desired maximum perforation diameter and is for example 500 microns.
  • the laser irradiation preferably takes place from the rear side 44 of the watermark insert 30, so that due to the Gaussian energy distribution or the beam shape of the laser beam to the front side surface 46 of the insert tapering perforations 40 arise, as in Fig. 3 (b) shown.
  • the diameter of the perforations on the back side 44 of the watermark insert is approximately 500 ⁇ m, and its diameter on the design surface 46 depends on the local material thickness of the insert due to the tapering of the perforations.
  • the perforation diameter at the design surface 46 in regions of large material thickness 50 is smaller than in regions of low material thickness 52.
  • the perforation diameters at the design surface 46 are between 150 .mu.m with high material thickness and 350 .mu.m with low material thickness.
  • the perforations 40 tapering towards the design surface 46 offer two advantages over straight-line perforations. First, they create a freewheel in the direction of flow 48 of the fiber suspension during papermaking and thus effectively prevent a permanent clogging of the drainage perforations 40.
  • the areas of large material thickness 50 serve to produce thin spots in the paper. Since the smaller perforation diameters in these regions inhibit drainage more than in the low gauge regions 52, thinning in the regions 50 is further assisted by the tapered perforations 40.
  • the spacing of the perforations 40 depends on the desired dewatering effect and is for example about 500 ⁇ m.
  • the perforation diameters may also be chosen to be large enough to be recognized as paper marks 60 in addition to the watermark 62 as dark marks 64, as shown in an exaggerated illustration in FIG Fig. 4 (a) shown.
  • the hole diameter for producing dark marking points is preferably at least 300 ⁇ m.
  • These dark spots 64 can serve as an additional security feature and / or as a recognition feature for the manufacturing process used.
  • the perforations 40 and thus the marking points 64 can also be arranged in a predetermined pattern.
  • the perforations as in Fig. 4 (b) be shown in a portion 66 in a square grid, be arranged in another portion 68 in a hexagonal grid, wherein the portions 66, 68 form a motif, such as a parent pattern or an encoding.
  • the perforations 40 and the resulting marking dots 64 may also themselves form a pattern 70 to increase anti-counterfeiting security, as exemplified in FIG Fig. 4 (c) shown.
  • the watermark insert 30 is connected to the screen mesh 54 of a carrier screen.
  • the screen fabric has at least one system each of interwoven, longitudinally extending warp threads 56 and weft threads 58 extending transversely thereto.
  • the screen fabric may contain a metal fabric, in particular a bronze fabric, a metal-plastic mixed fabric, in particular a bronze-plastic mixed fabric, or even a pure plastic fabric.
  • the mesh can be a blended fabric composite from weft (Reference 58) 1: 1 bronze / polyester and chain (reference numeral 56) in bronze.
  • the screen mesh 54 is cut out in the area of the watermark and overlaps the watermark insert 30 only in the area of the knob edge 36.
  • the connection of the watermark insert and screen mesh can be effected, for example, by ultrasonic welding, whereby the knobs 34 are firmly connected to the mesh screen 54 in the overlapping area.
  • the watermark height d which in the embodiment of FIGS Fig. 3 (c) about 1.0 mm.
  • the watermark insert 30 can be lowered so far that its maximum height 38 just corresponds to the screen level.
  • this reduction leads to watermarks, which at a consistently high contrast to the design of the Fig. 3 (c) have a slightly darker visual appearance.
  • the inserts can also be injected directly into the carrier screen, as is now described with reference to FIGS Fig. 6 explained.
  • a specially adapted, in Fig. 6 (a) schematically shown injection mold 80 used in which the screen fabric of the support wire 90 for the injection process along a sealing edge 82 is squeezed and sealed. The liquid plastic can then not escape laterally during injection molding.
  • the integrated watermark insert 92 is provided with dewatering perforations by means of a laser beam, as described above. If a bronze screen is used as the carrier screen 90, then the watermark insert 92 will only be permeable through the perforation at those points at which a perforation of the insert 92 coincides with an open position in the screen 90, since the bronze screen itself is not part of the CO 2 laser is perforated. He understands that this limitation can be taken into account and thus balanced when choosing the number, size and spacing of the perforations. Since the injected plastic shrinks much more when cooled than the Bronzesiebmaterial, the support screen is advantageously clamped during injection molding to avoid any blistering in the support 90.
  • both the watermark insert 92 and the support sieve 90 can be perforated by laser application under suitable laser parameters.
  • a material is selected for the plastic of the mesh fabric, which has a higher melting point than the injection molding material.
  • polyoxymethylene having a melting or glass transition temperature of 166 ° C and as a sieve polyetheretherketone having a melting or glass transition temperature of 335 ° C are used.
  • the use of a plastic sieve or a plastic-metal mixed fabric also improves the warpage behavior during cooling, since the moduli of elasticity of the plastics used are substantially closer to one another than the moduli of elasticity of injection-molding material and bronze.
  • the transition region between the watermark insert and the carrier screen in the finished paper will generally be visible. It therefore makes sense to include this transitional area in the design of the watermark.
  • Fig. 7 shown at a separate or one integrated into the support wire watermark insert 100 of the edge 102 and thus the transition region of Watermark insert and carrier screen artistically designed in the form of a motif or a pattern.
  • the watermark inserts can be produced by deep drawing (thermoforming) or by hot stamping instead of by injection molding, as described below with reference to FIGS FIGS. 8 and 9 briefly explained.
  • inventive watermark inserts 110 by deep drawing, first, as in FIG Fig. 8 (a) shown, a plastic plate 112 of a suitable plastic material placed on a thermoforming mold 114. The plastic plate 112 is then, as in Fig. 8 (b) shown heated, for example, with a radiant heater 116, and the heated plastic plate is sucked by a negative pressure 118 in the deep-drawing mold 114, as in Fig. 8 (c) shown.
  • the deep-drawn plastic sheet is perforated as described above and connected to a support wire.
  • an already perforated plastic plate 112 may be used for the deep drawing step.
  • the perforated plastic plate is covered during deep drawing with a flexible, air-impermeable material in order to produce a suitable negative pressure can.
  • a suitable plastic material 122 is displaced and pressed in an embossing tool 124, 126. It is first, as in Fig. 9 (a) shown, the plastic material 122 placed in a hot stamping die consisting of a male mold 124 and a die 126.
  • the die 126 has a stamp shape, but it will be understood that the male die 124 may also have a shape.
  • a watermark insert 120 having a uniform material thickness can be produced in this way.
  • FIG. 9 (c) shows the embossed watermark insert 120 after final molding.
  • the hot embossed plastic material as described above, perforated and connected to a support wire. Even when hot stamping, it is fundamentally possible to bring a plastic material already connected to a carrier screen into the desired shape.

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  • Paper (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Claims (13)

  1. Toile d'égouttage pour la fabrication d'un papier comportant des filigranes multitons, comportant une toile support, qui dans une zone partielle présente un relief à plusieurs niveaux se présentant sous la forme du filigrane à produire, caractérisée en ce que le relief à plusieurs niveaux est formé par un insert de filigranage perforé moulé par injection.
  2. Toile d'égouttage selon la revendication 1, caractérisée en ce que l'insert de filigranage est directement injecté dans la toile support.
  3. Toile d'égouttage selon au moins l'une des revendications 1 à 2, caractérisée en ce que l'insert de filigranage est formé d'un matériau plastique hydrophobe, tel que par exemple le polyoxyméthylène.
  4. Toile d'égouttage selon au moins l'une des revendications 1 à 3, caractérisée en ce que la toile support contient un tissu comportant un système de fils de chaîne courant dans la direction longitudinale, et de fils de trame courant perpendiculairement à ces derniers, entrelacés les uns dans les autres, et le tissu de la toile contient un tissu en un matériau plastique pur.
  5. Procédé de fabrication d'une toile d'égouttage pour la fabrication d'un papier comportant des filigranes multitons, dans lequel
    a) on met à disposition une toile support,
    b) on fabrique par le procédé de moulage par injection et on perfore un insert de filigrane distinct, comportant un relief à plusieurs niveaux sous forme du filigrane à produire, et
    c) on soude ou on colle l'insert de filigranage à la toile support.
  6. Procédé selon la revendication 5, caractérisé en ce que l'insert de filigranage est pourvu d'un grand nombre de perforations, dont les dimensions sont tellement petites que, lors de la fabrication du papier, aucune fibre n'y adhère, et les perforations sont produites par un faisceau laser, de préférence un laser infrarouge.
  7. Procédé de fabrication d'une toile d'égouttage pour la fabrication d'un papier comportant des filigranes multitons, dans lequel,
    a) on met à disposition une toile support,
    b) on injecte dans la toile support par le procédé de moulage par injection un insert de filigranage comportant un relief à plusieurs niveaux sous forme du filigrane à produire, et
    c) on perfore l'insert de filigranage intégré dans la toile support.
  8. Procédé selon la revendication 7, caractérisé en ce que l'insert de filigranage est pourvu d'un grand nombre de perforations, dont les dimensions sont tellement petites que, lors de la fabrication du papier, aucune fibre n'y adhère, et les perforations sont produites à l'aide d'un faisceau laser, de préférence un laser infrarouge.
  9. Toile d'égouttage pour la fabrication d'un papier comportant des filigranes multitons, comportant une toile support, qui dans uen zone partielle présente un relief à plusieurs niveaux sous forme du filigrane à produire, caractérisée en ce que le relief à plusieurs niveaux est formé par un insert de filigranage perforé obtenu par emboutissage.
  10. Toile d'égouttage pour la fabrication d'un papier comportant des filigranes multitons, comportant une toile support qui dans une zone partielle présente un relief à plusieurs niveaux sous forme du filigrane à produire, caractérisée en ce que le relief à plusieurs niveaux est formé par un insert de filigranage perforé estampé à chaud.
  11. Insert de filigranage pour une toile d'égouttage selon l'une des revendications 1 à 4 ou pour une toile d'égouttage pouvant être fabriquée selon l'une des revendications 5 à 8, caractérisé en ce que l'insert de filigranage représente un insert plastique perforé, moulé par injection, comportant un relief à plusieurs niveaux sous forme du filigrane à produire.
  12. Moule pour moulage par injection pour la fabrication d'un insert de filigranage pour une toile d'égouttage selon l'une des revendications 1 à 4 ou pour une toile d'égouttage pouvant être fabriquée selon l'une des revendications 5 à 8, qui présente un relief à plusieurs niveaux sous forme du filigrane à produire.
  13. Procédé de fabrication d'un papier, en particulier d'un papier de sécurité, comportant un filigrane multitons, dans lequel la mise en place du papier a lieu sur une toile d'égouttage selon l'une des revendications 1 à 4, 9 ou 10, ou sur une toile d'égouttage pouvant être fabriquée selon l'une des revendications 5 à 8.
EP07846991.3A 2006-12-12 2007-12-05 Tamis d'égouttage et son procédé de fabrication Active EP2115217B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
SI200731448T SI2115217T1 (sl) 2006-12-12 2007-12-05 Sito za odstranjevanje vode in postopek njegove izdelave
PL07846991T PL2115217T3 (pl) 2006-12-12 2007-12-05 Sito odwadniające i sposób jego wytwarzania

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006058513A DE102006058513A1 (de) 2006-12-12 2006-12-12 Entwässerungssieb und Verfahren zu seiner Herstellung
PCT/EP2007/010547 WO2008071325A1 (fr) 2006-12-12 2007-12-05 Tamis d'égouttage et son procédé de fabrication

Publications (2)

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EP2115217A1 EP2115217A1 (fr) 2009-11-11
EP2115217B1 true EP2115217B1 (fr) 2014-02-26

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EP07846991.3A Active EP2115217B1 (fr) 2006-12-12 2007-12-05 Tamis d'égouttage et son procédé de fabrication

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US (2) US8349132B2 (fr)
EP (1) EP2115217B1 (fr)
KR (1) KR101534353B1 (fr)
CN (1) CN101558198B (fr)
DE (1) DE102006058513A1 (fr)
ES (1) ES2454643T3 (fr)
PL (1) PL2115217T3 (fr)
RU (1) RU2448210C2 (fr)
SI (1) SI2115217T1 (fr)
WO (1) WO2008071325A1 (fr)

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DE102005022018A1 (de) * 2005-05-12 2006-11-16 Giesecke & Devrient Gmbh Sicherheitspapier und Verfahren zu seiner Herstellung
DE102005032815A1 (de) * 2005-07-12 2007-01-18 Giesecke & Devrient Gmbh Verfahren zur Herstellung eines Sicherheitspapiers, Papiersieb und Formelement für Papiersieb
DE102005061749A1 (de) 2005-12-21 2007-07-05 Giesecke & Devrient Gmbh Optisch variables Sicherheitselement und Verfahren zu seiner Herstellung
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CN101558198B (zh) 2013-07-17
CN101558198A (zh) 2009-10-14
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US8349132B2 (en) 2013-01-08
EP2115217A1 (fr) 2009-11-11
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US20100175843A1 (en) 2010-07-15

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