EP0486065B1 - Wertpapier und Verfahren zu seiner Herstellung - Google Patents

Wertpapier und Verfahren zu seiner Herstellung Download PDF

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Publication number
EP0486065B1
EP0486065B1 EP91119567A EP91119567A EP0486065B1 EP 0486065 B1 EP0486065 B1 EP 0486065B1 EP 91119567 A EP91119567 A EP 91119567A EP 91119567 A EP91119567 A EP 91119567A EP 0486065 B1 EP0486065 B1 EP 0486065B1
Authority
EP
European Patent Office
Prior art keywords
paper
paper web
optically variable
film strip
adhesive
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.)
Expired - Lifetime
Application number
EP91119567A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0486065A1 (de
Inventor
Wittich Dr. Kaule
Michael Böhm
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.)
GAO Gesellschaft fuer Automation und Organisation mbH
Original Assignee
GAO Gesellschaft fuer Automation und Organisation mbH
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 GAO Gesellschaft fuer Automation und Organisation mbH filed Critical GAO Gesellschaft fuer Automation und Organisation mbH
Publication of EP0486065A1 publication Critical patent/EP0486065A1/de
Application granted granted Critical
Publication of EP0486065B1 publication Critical patent/EP0486065B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
    • D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
    • D21H21/40—Agents facilitating proof of genuineness or preventing fraudulent alteration, e.g. for security paper
    • D21H21/42—Ribbons or strips
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/30—Identification or security features, e.g. for preventing forgery
    • B42D25/355—Security threads

Definitions

  • the invention relates to a security with an embedded security element, preferably an optically variable element in the form of hologram, diffraction or interference structures applied to the paper surface.
  • the invention further relates to methods for producing such a security.
  • optically variable elements Various methods are known for applying the optically variable elements to the security; they can usually be divided into three categories: gluing, transfer printing and embossing.
  • adhesive labels which are initially pre-punched on silicone paper, for example, are transferred to the paper substrate.
  • the adhesive labels have at least one layer structure, which is composed of a pressure-sensitive adhesive layer, a self-supporting film of an optically active layer (for example with a diffraction grating) and an overlying protective layer.
  • the thickness of an adhesive label is typically around 50 micrometers, with the major part of the thickness being attributable to the carrier film.
  • the embossing process is particularly suitable for diffraction elements such as holograms and optical gratings.
  • a layer of a curable lacquer is applied to a substrate, which is preferably provided with an extremely thin and reflective metal surface.
  • the diffractive relief structure is embossed into the lacquer layer with an embossing stamp.
  • the structure is covered with a protective lacquer.
  • the finished element has a layer structure consisting of the successive layers of lacquer with a metal layer and relief structure and the protective lacquer layer.
  • Adhesive labels are technically simple to produce and can be transferred to the intended substrates without any problems.
  • Extremely disadvantageous for an application in the securities sector with adhesive labels is the possibility of detaching the elements as a whole from the substrate and transferring them to counterfeit products. For this reason, the transfer and embossing elements are preferred for security applications.
  • EP-A-0 338 378 such a system for manufacturing paper products is known which has both a printed image and an optical diffraction element.
  • the paper is first printed in known printing units.
  • a radiation-curable lacquer is then applied in a single operation, analogous to the embossing process described, and provided with a diffraction structure.
  • the diffraction structure is vaporized with a reflective metal layer and provided with a protective lacquer.
  • the hologram application process is divided into two. Following the paper production, the lacquer is applied to the paper surface in a first sub-step. After printing on the paper, the optical grid is embossed in the next sub-step.
  • a variant of this two-part process is described in US Pat. No. 4,420,515.
  • a metal layer and an overlying adhesive layer are first applied to a plastic transfer belt with a prepared surface; these two layers form the substructure of the future security element.
  • the two layers are laminated onto the substrate, the substructure of the element assuming the surface quality of the transfer tape under the action of heat and pressure during the lamination process.
  • a printed image and an optically acting relief structure are applied to the substrate.
  • a security paper is also known, in which security elements are introduced.
  • the elements located on a carrier tape are introduced into the resulting paper mass together with the carrier tape during the manufacturing process of the security paper.
  • the water-soluble or porous carrier tape is embedded in the resulting paper together with the security element.
  • this method has the disadvantage that the carrier tape now lying in the paper in the area of the security element leads to a thickening of the security paper.
  • the invention is therefore based on the object of specifying a security with a security element, in particular an optically variable element and method for its production, in which a subsequent printing of the security, in particular in steel intaglio printing, is possible without the optically variable element being damaged and which prevents the thickening of the security paper from occurring in the immediate vicinity of the security element.
  • optically variable elements to the security is to be integrated into the paper production in such a way that it is possible to work with comparatively fast-working reel machines.
  • application of the optically variable elements should be integrated into existing production processes in such a way that existing machines have to be changed as little as possible.
  • the invention is based on the knowledge that optically variable elements and paper are two materials with extremely different properties and that, depending on the intended function, different requirements are placed on the two materials.
  • Paper in particular security, has, among other properties, a certain "grip", and the paper can also accept and bind printing inks. These properties are achieved by choosing special types of paper, preferably rag paper, and by setting a predetermined surface roughness and structure.
  • optically variable elements must have optical properties with the highest possible efficiency. For this, however, the physical laws primarily require surface structures that are characterized by a more smooth and flat surface.
  • the invention teaches that the optically variable element should already be connected to the security during paper production, specifically in the state in which the security is still relatively damp, soft and has not yet been squeezed or calendered.
  • the still high water content in this phase of production has a pressure-equalizing effect and enables the element to be embedded evenly in the paper pulp.
  • the surface roughness of the paper does not characterize the sensitive layers of the element, but conversely there is an adaptation of the still compliant paper fibers to the smooth undersurface of the optically variable elements on their other side supported by the smooth surfaces of the calender rolls.
  • the optically variable element is embedded in the paper substance, the paper surface being flush with the surface of the optically variable element. Subsequent printing is also possible in the areas of the optically variable element, since the high pressures which occur do not lead to an excessive load on the optically variable element embedded in the surface of the security.
  • the optically variable elements are in tape form, similar to the known security threads.
  • the carrier material with the optically active structure is placed on the paper layer formed after the sheet formation has been completed or is almost complete.
  • the tape is either brought outside the pulp to the circular screen after the paper layer has completely formed, ie it is placed on the paper fiber layer after leaving the circular screen or the tape is brought to the circular screen by means of nozzles in the pulp after e.g. . B. 90% of the final paper thickness is present, so that the material thickness of element plus paper corresponds approximately to the paper thickness in the adjacent areas.
  • the subsequent process steps such as. B.
  • the paper-side layer of the carrier tape is preferably to be provided with an adhesive layer which cures when the paper dries.
  • the specialist selects the most suitable one from the range of adhesives commercially available. Both pressure-sensitive adhesives and water-soluble adhesives or hot-melt adhesives appear particularly suitable. If necessary, it is also possible to support the adhesive curing by means of an appropriate UV or infrared radiation.
  • individual optically variable elements in the form of adhesive labels can also be provided. These adhesive labels are preferably attached to an endless transfer belt which is later, i. H. after anchoring the labels, in the paper mass is peeled off again.
  • the methods for producing the security according to claim 1 are of course not limited to securities that have sensitive optically variable elements.
  • Other security elements such as. B. security threads with micro or negative printing can be introduced in the manner described in securities. Because such security elements Because of their high resistance compared to optically variable elements, they place less demands on the paper material and the treatment, so they can be fed in at any point during paper production. It can e.g. B. can be brought up to the circular screen after 85% paper accumulation, so that the element is well protected embedded in the remaining 15% that surround it at the end of papermaking or just before the final paper thickness is available.
  • FIG. 1 shows a section of a security 10 with an embedded security element, preferably an optically variable element 12.
  • the optically variable element is embedded seamlessly in the form of a strip in the paper mass, its surface being flush with the paper surface.
  • the surface of the optically variable element, which preferably has a hologram structure 14, is visible over the entire surface, so that the optical effects can be checked easily, which is not always the case with the known "window security threads", since there the tiny areas that do Make thread material visible, optically not very effective.
  • the optically variable element is in the form of a thin self-supporting film strip 16.
  • the band 16 as indicated in FIG. 2, is fed to the paper machine in such a way that it rests on the paper fiber layer 26 that has already been formed.
  • the tape 16 is inserted between the take-off felt 22 and the paper fiber layer 26 leaving the circular screen 18.
  • the tape 16 is drawn off from a supply roll 17.
  • the paper layer is formed on the circular screen 18 in a known manner by withdrawing liquid from the pulp 24 through the interior 20 of the circular screen 18, the paper fibers being deposited on the circular screen.
  • the carrier tape with the optically variable elements can also be placed on the other side of the paper layer 26, that is to say, for example, inserted into the gap between the rollers 25 and the paper layer 26.
  • FIG. 4 Another possible variant of thread insertion is shown in FIG. 4, in particular for narrow threads.
  • the belt 16 carrying the optically variable element is placed on the circular sieve before the paper production.
  • This option is particularly suitable for threads whose width is in the area of the paper fiber length or less, since no fibers are deposited on the thread itself, but those that deposit on the wire in the immediate vicinity of the thread Overlap the thread so that a paper base has nevertheless formed in the area of the thread when leaving the pulp.
  • the side of the tape 16 facing the paper web is provided with an adhesive layer, as a result of which the tape is more firmly fixed on the paper surface.
  • the adhesive layer can be designed both as a water-soluble wet adhesive and as a hot-melt adhesive. When the paper web dries, the adhesive is activated and / or cured. The element is thus firmly anchored in the paper.
  • the feeding of the safety element is described here for reasons of clarity on a machine with only one circular screen. However, it is not a problem to transfer this method to a machine with two layers of production. In this case, the thread is fed to the screen, which produces the majority of the paper thickness.
  • the hologram thread 16 is, as can be seen from FIG. 5, applied to the paper 26 with a nozzle 30, similar to a conventional security thread, the nozzle 30 being immersed so far in the pulp 24 that a point is reached where sufficient Paper is formed. No more paper is deposited in front of the belt 16 if the belt 16 is sufficiently wide or if the paper has essentially reached its final thickness, since the thread in its contact area prevents the water permeability of the paper and sieve. With this method, too Hologram thread 16 z. B. coated with a hot glue. It is then firmly attached to the paper in the hot dryer section of the paper machine.
  • the adhesive such as, for example, hot glue
  • the adhesive may initially only have a minimal adhesive force when it is introduced, since otherwise the tape 16 would stick in the insertion nozzle 30.
  • the tape 16 is initially held only by the "self-adhesive force" of the moist paper 26, that is to say by adhesion.
  • the processes described below are therefore more suitable for wider, thicker and stiffer carrier materials.
  • FIG. 6 shows a method which enables a hologram thread 16 to be applied, which is coated with a strong pressure-sensitive adhesive and, as is customary in such cases, is provided with a silicone paper 35 which protects the coated side.
  • This double band of hologram carrier tape 16 and silicone paper 35 is, as before, drawn off from a supply roll 17 and brought to the circular screen 18 via deflection rolls.
  • the pull-off device 32 for the silicone paper 35 which essentially consists of a deflection roller which feeds the pulled-off silicone paper to a storage roll 31.
  • the methods shown in FIGS. 6 and 7 can be combined in order to facilitate the threading of a hologram tape 16 coated with pressure-sensitive adhesive with silicone paper 35.
  • the silicone paper 35 is pulled off from the belt 16 directly after the dispenser roll 17 via the deflection roll 33 and fed to a storage roll 34.
  • the now exposed adhesive coating of the tape 16 is protected by a circumferential silicone-coated film 40 during the further transport to the wet paper web, quite analogously to the method described above.
  • the procedure shown in FIG. 9 offers a further alternative to the previously mentioned methods for introducing pressure-sensitive adhesive-coated hologram tapes.
  • the hologram band 16 is coated with adhesive 50 immediately before it is introduced into the paper machine and is transported to the circular sieve according to the known method with the aid of a circulating silicon band 40.
  • adhesives that can be used, it should be noted that in addition to hot and pressure-sensitive adhesives, other adhesives, such as, for. B. multi-component adhesive, or adhesives that are activated in water can be used. It is also advantageous to use adhesive mixtures in which the tapes are first attached and then firmly attached to the paper in later production steps (for example when drying and calendering under the influence of heat).
  • the hologram tape After placing the hologram tape on the paper layer, it runs in the usual way through the further treatment stations of the paper machine, during calendering the tape is pressed into the still soft paper layer in the manner shown in Fig. 1, the paper fibers of the smooth surface of the Customize elements.
  • the transfer belt In the event that an endless belt is not applied, but individual elements, the transfer belt must be removed again after the elements have been anchored in the paper. This is preferably done after the paper web has dried, but in any case before the sizing station. The same procedure is necessary if endless belts are to be applied in the transfer process or if thin foils with low intrinsic stability are to be fixed on the paper surface.
  • the paper web After the quality check, the paper web is ready for printing, it can either be wound up on a winder and stored or it can be fed directly into a printing machine.

Landscapes

  • Paper (AREA)
  • Credit Cards Or The Like (AREA)
  • Developing Agents For Electrophotography (AREA)
  • Making Paper Articles (AREA)
  • Magnetic Record Carriers (AREA)
  • Medicines Containing Antibodies Or Antigens For Use As Internal Diagnostic Agents (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Glass Compositions (AREA)
  • Holo Graphy (AREA)
  • Polymerisation Methods In General (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)
EP91119567A 1990-11-16 1991-11-15 Wertpapier und Verfahren zu seiner Herstellung Expired - Lifetime EP0486065B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4036637 1990-11-16
DE4036637A DE4036637A1 (de) 1990-11-16 1990-11-16 Wertpapier und verfahren zu seiner herstellung

Publications (2)

Publication Number Publication Date
EP0486065A1 EP0486065A1 (de) 1992-05-20
EP0486065B1 true EP0486065B1 (de) 1995-07-12

Family

ID=6418434

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91119567A Expired - Lifetime EP0486065B1 (de) 1990-11-16 1991-11-15 Wertpapier und Verfahren zu seiner Herstellung

Country Status (10)

Country Link
US (1) US5567276A (ko)
EP (1) EP0486065B1 (ko)
KR (1) KR100198479B1 (ko)
AT (1) ATE125016T1 (ko)
BR (1) BR9104957A (ko)
CA (1) CA2055621C (ko)
DE (2) DE4036637A1 (ko)
FI (1) FI109041B (ko)
NO (1) NO176579C (ko)
PL (1) PL170719B1 (ko)

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WO1994013749A1 (en) * 1992-12-14 1994-06-23 Bank Of Canada Thin film security device (tfsd) application process and adhesive therefor
DE4243905A1 (de) * 1992-12-23 1994-06-30 Gao Ges Automation Org Sicherheitselement zum Schutz von Sicherheitsdokumenten gegen Reproduktion
FR2705107B1 (fr) * 1993-05-12 1995-06-23 Arjo Wiggins Sa Feuille de sécurité comportant des éléments de sécurité protégés et son procédé de fabrication.
CN1083511C (zh) * 1996-03-12 2002-04-24 特种制纸株式会社 防伪纸及其制造方法
US5961152A (en) * 1997-05-29 1999-10-05 The Standard Register Company Security paper having an embedded and deformed security thread and a process for making the security paper
US5944927A (en) * 1997-05-29 1999-08-31 The Standard Register Company Security paper having an embedded security thread and a process for making the security paper
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DE10008851A1 (de) * 2000-02-25 2001-08-30 Giesecke & Devrient Gmbh Verfahren zur Herstellung laserbeschriftbarer Datenträger und damit hergestellte Datenträger
FI116086B (fi) 2000-06-08 2005-09-15 Avantone Oy Varmistusmerkitty paperi- tai kartonkituote ja varmistusmerkitty pakkaus
FR2827986B1 (fr) * 2001-07-30 2004-04-02 Arjo Wiggins Sa Procede de fabrication d'un article comportant une couche fibreuse et au moins une puce electronique, et article ainsi obtenu
DE10243653A1 (de) * 2002-09-19 2004-04-01 Giesecke & Devrient Gmbh Sicherheitspapier
GB2395959B (en) * 2002-12-05 2004-11-10 Rue De Int Ltd Method and apparatus for manufacturing a fibrous substrate incorporating an el ongate element
FI119391B (fi) * 2004-01-05 2008-10-31 Stora Enso Oyj Menetelmä tunnistemerkintöjen tuottamiseksi paperiin tai kartonkiin sekä menetelmällä aikaansaatu merkitty materiaali
ITVR20040104A1 (it) * 2004-06-16 2004-09-16 Cartiere Fedrigoni & C Spa Apparecchiatura per la produzione di carta di sicurezza e relativo procedimento
RU2409473C2 (ru) * 2005-03-22 2011-01-20 Эрроу Коутид Продактс Лтд Бумага с высокой степенью защиты от подделки и способ ее изготовления
FR2907136B1 (fr) * 2006-10-12 2010-01-15 Arjowiggins Ruban de securite, feuille et document de securite le comportant et procede d'incorporation
JP4961944B2 (ja) 2006-10-24 2012-06-27 凸版印刷株式会社 表示体及び印刷物
CN102089476A (zh) * 2008-06-12 2011-06-08 克瑞尼股份有限公司 增强防伪元件与片状纤维材料之间附着力的方法
US9708773B2 (en) 2011-02-23 2017-07-18 Crane & Co., Inc. Security sheet or document having one or more enhanced watermarks
ES2652034T3 (es) 2011-08-19 2018-01-31 Visual Physics, Llc Sistema óptico opcionalmente transferible de grosor reducido
RU2605372C9 (ru) * 2011-09-26 2017-05-24 Крейн Секьюрити Текнолоджис, Инк. Способ изготовления композитной ленты и защитные средства, выполненные из композитной ленты
JP6053932B2 (ja) 2012-08-17 2016-12-27 ビジュアル フィジクス エルエルシー 微細構造を最終基板に転写するプロセス
AU2014228012B2 (en) 2013-03-15 2018-07-26 Visual Physics, Llc Optical security device
US9873281B2 (en) 2013-06-13 2018-01-23 Visual Physics, Llc Single layer image projection film
US10766292B2 (en) 2014-03-27 2020-09-08 Crane & Co., Inc. Optical device that provides flicker-like optical effects
EP4235637A3 (en) 2014-03-27 2023-12-06 Visual Physics, LLC An optical device that produces flicker-like optical effects
CN108749391B (zh) 2014-07-17 2021-05-11 光学物理有限责任公司 用于制造聚合物安全文件例如银行票据的改善的聚合物片材
US10195890B2 (en) 2014-09-16 2019-02-05 Crane Security Technologies, Inc. Secure lens layer
RU2712604C2 (ru) 2015-02-11 2020-01-29 КРАНЕ и КО., ИНК. Способ наложения защитного устройства на поверхность подложки
RU2760808C2 (ru) 2017-02-10 2021-11-30 Крейн Энд Ко., Инк. Машиночитаемое оптическое защитное устройство

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Also Published As

Publication number Publication date
BR9104957A (pt) 1992-06-23
CA2055621C (en) 1999-10-12
NO914476L (no) 1992-05-18
FI109041B (fi) 2002-05-15
ATE125016T1 (de) 1995-07-15
US5567276A (en) 1996-10-22
KR920009611A (ko) 1992-06-25
PL292420A1 (en) 1992-06-15
KR100198479B1 (ko) 1999-06-15
PL170719B1 (pl) 1997-01-31
EP0486065A1 (de) 1992-05-20
NO176579B (no) 1995-01-16
NO176579C (no) 1995-04-26
DE4036637A1 (de) 1992-05-21
NO914476D0 (no) 1991-11-15
FI915401A (fi) 1992-05-17
DE59105978D1 (de) 1995-08-17
CA2055621A1 (en) 1992-05-17
FI915401A0 (fi) 1991-11-15

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