EP0493231B1 - Bedruckbarer Bogen zur Herstellung von Sicherheitsdokumenten mit einem Mittel gegen Nachahmung oder für Beglaubigung - Google Patents

Bedruckbarer Bogen zur Herstellung von Sicherheitsdokumenten mit einem Mittel gegen Nachahmung oder für Beglaubigung Download PDF

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Publication number
EP0493231B1
EP0493231B1 EP91403501A EP91403501A EP0493231B1 EP 0493231 B1 EP0493231 B1 EP 0493231B1 EP 91403501 A EP91403501 A EP 91403501A EP 91403501 A EP91403501 A EP 91403501A EP 0493231 B1 EP0493231 B1 EP 0493231B1
Authority
EP
European Patent Office
Prior art keywords
iridescent
sheet
binder
coating
sheet according
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
EP91403501A
Other languages
English (en)
French (fr)
Other versions
EP0493231A1 (de
EP0493231B2 (de
Inventor
Michel Camus
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.)
ArjoWiggins Security SAS
Original Assignee
ArjoWiggins SAS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=9403567&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0493231(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by ArjoWiggins SAS filed Critical ArjoWiggins SAS
Publication of EP0493231A1 publication Critical patent/EP0493231A1/de
Publication of EP0493231B1 publication Critical patent/EP0493231B1/de
Application granted granted Critical
Publication of EP0493231B2 publication Critical patent/EP0493231B2/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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M3/00—Printing processes to produce particular kinds of printed work, e.g. patterns
    • B41M3/14—Security printing
    • B41M3/144—Security printing using fluorescent, luminescent or iridescent effects

Definitions

  • the invention relates to a printable sheet for manufacturing security documents comprising a means of security against counterfeiting by reproduction with photocopiers, in particular color photocopiers or by scanner and / or authentication means.
  • This security means is an iridescent coating partially or completely disposed on the surface of the sheet, an impression on this iridescent coating being achievable, the holding of this impression being good and its print rendering being high.
  • the invention relates more particularly to sheets of paper for banknotes or other valuable securities which can in particular be printed by offset printing and / or by intaglio printing. It further relates to a composition which gives it simultaneously surface iridescence properties, resistance to circulation and possibly of superior printability.
  • security documents for example papers for banknotes or for checks or any other security of value include chemical means of authentication and / or indicators of falsification. Some contain on the surface or in bulk substances preventing reproduction of the document by photocopy or scanner.
  • a security paper comprising an iridescent substance as a security means.
  • This iridescent substance can be deposited on the surface of the paper by printing or by coating an ink made with this iridescent substance and a binder.
  • iridescent substance gives particular optical effects, in particular changes in reflections, tints or shades depending on the angle of observation.
  • a first drawback is that during the printing of the sheet, in particular by intaglio printing, there may be a more or less significant transfer of the layer of iridescent substance on the intaglio plates.
  • a second disadvantage of the sheets of the prior art is that the iridescent layer does not resist all the mechanical actions which could alter it.
  • the security documents produced from these sheets circulate between individuals and pass through various machines, for example false document detectors, automatic distributors, etc.
  • the documents are subjected to treatments liable to deteriorate them, for example they are folded, crumpled, wet, scraped, subjected to various rubs and can even undergo a washing treatment by introduction into a washing machine.
  • a printable sheet usable for manufacturing security documents having a print rendering as well as a high resistance to circulation such that at least one of its faces is treated with a composition comprising at least one filler. and at least one binder.
  • a composition does not contain an iridescent substance.
  • the print rendering is the fact that the line obtained by printing is perfectly clear, that is to say that it does not have any burrs or in terms used by those skilled in the art, "feathering". These burrs are formed by bulges more or less perpendicular to the line, which means that the size of the line is greater than the desired thickness and this results in it being difficult to bring the lines together without risk of blurring. Therefore, the central bank that prints the paper to obtain security documents is forced to make sufficiently fine prints. It is therefore difficult to produce micro-prints. However, micro-prints are very useful as security elements because they are difficult to reproduce by photocopiers who currently cannot reproduce very fine prints. Print rendering is also characterized by the density of print color.
  • the human eye has sufficient resolution to distinguish between an impression having a good rendering and an impression comprising a "feathering".
  • one of the objects of the invention is to provide a non-reproducible security document in particular by color photocopying or by scanner, comprising at least partially a surface coating obtained from an iridescent composition, such that no transfer of the iridescent coating does not take place when the document is printed.
  • Another object of the invention is to provide a security document above such that the iridescent coating itself has good resistance to circulation.
  • a third object of the invention is to provide a security document comprising at least partially an iridescent coating making it possible to maintain the good resistance to circulation (that is to say good behavior) of the surface impressions made on this coating of this iridescent composition.
  • Another object of the invention is to provide a security document having a good print rendering.
  • the technical problem which must therefore be resolved is to provide an iridescent composition which can be easily carried by any coating or printing means on a sheet so that the iridescent effect is retained when the sheet is coated. by the composition and at the same time it is possible to print on this coating while obtaining a good printing result and that the resistance to circulation of the printed sheet is good.
  • the aims of the invention are achieved by using as an iridescent composition a mixture comprising at least one iridescent pigment and at least one binder, the binder being chosen so as not to mask the iridescent effect of the substance.
  • the invention relates to a printable security sheet comprising a security means against counterfeiting by reproduction with a photocopier or a scanner, and / or as a means of identification, at least one iridescent coating disposed at least partially on the surface of the sheet, said coating having good resistance to circulation and being obtained from a composition consisting of at least one binder and at least one iridescent substance.
  • the binder is chosen from polyurethanes, halogenated polymers and more preferably from homo- or co-polymers of alkene halide, ketene halide, and mixtures thereof.
  • poly (vinyl chloride) is chosen.
  • the binder can contain a plasticizer which can for example be a vegetable oil.
  • the binder may also contain a siccative.
  • the iridescent substance can for example be a mineral pigment such as a mica coated with titanium dioxide, a plastic pigment composed of a special stack of films producing an iridescent (or dichroic) effect when the pigment is observed from a certain angle.
  • additives such as viscosity modifiers, rheology agents, plasticizers, etc. may be added to the iridescent composition.
  • the iridescent composition is preferably deposited on the surface of a sheet, in an amount of 3 to 12 g / m2.
  • This composition can be deposited by any coating or printing means on the surface of the document. It can be deposited, for example, by air layer coating, at the MEYER bar, by gravure printing, by screen printing, etc. It can be carried out in a solvent or aqueous medium.
  • the security document can be a sheet made from cellulosic and / or synthetic fibers, optionally mixed with mineral fibers.
  • the document may possibly be a film or a plate made of synthetic material. It may include other security elements.
  • the tests are estimated visually (with the naked eye or with a magnifying glass) and by comparison.
  • a part of the sheet which has not been treated is compared with a part treated with the iridescent composition according to the invention.
  • the sheet is printed by offset or intaglio.
  • the resistance to circulation is observed on the one hand from the parts treated according to the invention and on the other hand from the untreated parts. It can be seen that the print rendering on the treated parts is greater than that of the untreated parts.
  • the document cannot be reproduced by photocopy.
  • the document is subjected to a prior crumpling. Then place it in a bottle, as above, but add powder containing the dyes and an artificial sweat composition. We appreciate the degree of soiling visually.
  • a sheet is made on a paper machine from an aqueous suspension of cellulose fibers, optionally in admixture with synthetic fibers and other additives used in stationery.
  • the following iridescent composition is deposited on a part of this sheet, using a MEYER n 1 bar, which comprises in dry:
  • composition is deposited at the rate of 8 g / m 2 dry.
  • the area of the sheet coated with the iridescent composition does exhibit a yellow-green iridescence effect, that is to say that if one looks at the sheet at an angle substantially perpendicular to the sheet, the coated area appears substantially white. and if we look at the sheet at an angle of about 45 degrees, the coated area appears yellow green.
  • Example 1 is used again, but an iridescent substance is used, a mica coated with titanium dioxide giving a pink iridescence. The area of the sheet coated with this composition does have a pink iridescence effect.
  • the sheets obtained according to Examples 1 and 2 are printed by intaglio and they are subjected to the circulation resistance tests mentioned above, after drying of the intaglio ink.
  • the print rendering in particular the fineness of the lines, is greater on the part comprising the iridescent composition than that obtained on the non-iridescent part.
  • Example 1 If a composition such as that mentioned in Example 1 is produced, but by replacing the binder with a polyvinyl acetate derivative, then this composition is deposited on a sheet of paper and only after drying an intaglio printing is carried out, an iridescent composition is transferred to the intaglio printing plates.
  • An iridescent composition is produced like that of Example 1, but the binder is replaced by a binder based on nitrocellulosic derivative. After coating this composition on a sheet of paper and drying, when an intaglio printing is carried out, the iridescent composition is transferred to the printing plates.
  • Example 1 The composition of Example 1 is produced, but a binder based on poly (vinylidene chloride) is used. By depositing a layer of this composition on paper, then drying, an intaglio printing can be carried out without any transfer of the composition onto the printing plates.
  • a binder based on poly vinylene chloride
  • Example 1 The composition of Example 1 is produced, but a binder based on polyurethane in aqueous solution is used. By depositing a layer of this composition on paper, then drying, an intaglio printing can be carried out without any transfer of the composition onto the printing plates.

Landscapes

  • Credit Cards Or The Like (AREA)
  • Accessory Devices And Overall Control Thereof (AREA)
  • Printing Methods (AREA)
  • Cleaning In Electrography (AREA)
  • Paper (AREA)
  • Laminated Bodies (AREA)
  • Inks, Pencil-Leads, Or Crayons (AREA)

Claims (7)

1. Bedruckbarer Sicherheitsbogen, der als Mittel zur Sicherung gegen Nachahmung durch Reproduktion mit einem Photokopiergerät oder einem Scanner und/oder als Erkennungsmarker mindestens einen irisierenden Auftrag aufweist, welcher mindestens auf einem Teil der Bogenoberfläche aufgebracht ist, wobei der Auftrag eine hohe Widerstandsfähigkeit gegenüber mehrmaligem Gebrauch (beim Umlauf) aufweist und ausgehend von einer Überzugszusammensetzung erhalten worden ist, welche mindestens aus einem Bindemittel und mindestens einer irisierenden Substanz besteht, wobei das Bindemittel mindestens eine Verbindung aufweist, welche aus der aus Homo- oder Copolymeren von Alkenhalogenid, Ketenhalogenid, Polyurethanen und deren Mischungen bestehenden Gruppe ausgewählt ist.
2. Bogen gemäß Anspruch 1, dadurch gekennzeichnet, daß er ohne Übertragung des irisierenden Auftrags bedruckbar ist.
3. Bogen gemäß einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das Bindemittel ein Polyvinylchlorid aufweist.
4. Bogen gemäß einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Zusammensetzung des irisierenden Überzugs die folgenden Komponenten enthält:
- zwischen 30 und 70 Gew.-Teile mindestens einer irisierenden Substanz in bezug auf den Trockenzustand,
- zwischen 30 und 70 Gew.-Teile mindestens eines Bindemittels in bezug auf den Trockenzustand, wobei das Gesamtgewicht 100 Teile ausmacht, und gegebenenfalls weitere Zusatzstoffe vorhanden sind, die unter Trockenmitteln, Weichmachern und einem Mittel zur Modifizierung der Fließeigenschaften ausgewählt sind.
5. Bogen gemäß einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das Bindemittel die folgenden Komponenten aufweist:
- Polyvinylchlorid,
- ein pflanzliches ÖI,
- Zinn,
- mindestens ein Lösungsmittel, sowie
- einen mineralischen Füllstoff zur Regulierung der Fließeigenschaften.
6. Bogen gemäß einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die irisierende Substanz aus mit Titandioxid beschichtetem Glimmer besteht.
7. Sicherheitsdokument, welches durch das Bedrucken eines Bogens gemäß einem der vorhergehenden Ansprüche erhalten worden ist.
EP91403501A 1990-12-21 1991-12-20 Bedruckbarer Bogen zur Herstellung von Sicherheitsdokumenten mit einem Mittel gegen Nachahmung oder für Beglaubigung Expired - Lifetime EP0493231B2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9016142A FR2670812B1 (fr) 1990-12-21 1990-12-21 Feuille imprimable pour fabriquer des documents de securite comportant un moyen contre la contrefacon ou d'authentification.
FR9016142 1990-12-21

Publications (3)

Publication Number Publication Date
EP0493231A1 EP0493231A1 (de) 1992-07-01
EP0493231B1 true EP0493231B1 (de) 1995-05-10
EP0493231B2 EP0493231B2 (de) 2003-01-22

Family

ID=9403567

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91403501A Expired - Lifetime EP0493231B2 (de) 1990-12-21 1991-12-20 Bedruckbarer Bogen zur Herstellung von Sicherheitsdokumenten mit einem Mittel gegen Nachahmung oder für Beglaubigung

Country Status (7)

Country Link
EP (1) EP0493231B2 (de)
AT (1) ATE122425T1 (de)
DE (1) DE69109647T3 (de)
DK (1) DK0493231T4 (de)
ES (1) ES2072580T5 (de)
FR (1) FR2670812B1 (de)
MX (1) MX9102732A (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19829004A1 (de) * 1998-06-30 2000-01-05 Giesecke & Devrient Gmbh Sicherheitspapier

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2268906A (en) † 1992-07-24 1994-01-26 Portals Ltd Counterfeit protection for documents using optical effects of liquid crystal
GB2283026B (en) * 1993-09-30 1997-01-08 Portals Ltd Improvement in security features for paper
DE4419089A1 (de) * 1994-06-01 1995-12-07 Basf Ag Verwendung von Interferenzpigmenten zur Herstellung von fälschungssicheren Wertschriften und Verpackungen
ES2116197B1 (es) * 1995-04-05 1999-04-01 Ind De Hijos De Antonio Fabreg Un procedimiento para evitar la falsificacion de documentos por copiado.
FR3021251B1 (fr) 2014-05-26 2017-10-27 Arjowiggins Security Substrat pour document securise.

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4010293A (en) * 1975-02-13 1977-03-01 Chester Davis Enhancement of iridescent colors to provide vivid colorants and printing inks
FR2429292A1 (fr) * 1978-06-19 1980-01-18 Arjomari Prioux Papier de securite comportant comme moyen de securite au moins une substance iridescente
FR2492292A1 (fr) * 1980-10-17 1982-04-23 Mollart Eng Co Ltd Tour a decolleter perfectionne
CH672687A5 (de) * 1987-11-20 1989-12-15 Lipatec Ets
NL8900296A (nl) * 1989-02-07 1990-09-03 Enschede & Zonen Grafisch Iriserende vloeistof en een veiligheidsdocument voorzien van een iriserende vloeistof.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19829004A1 (de) * 1998-06-30 2000-01-05 Giesecke & Devrient Gmbh Sicherheitspapier

Also Published As

Publication number Publication date
FR2670812A1 (fr) 1992-06-26
MX9102732A (es) 1992-06-01
DK0493231T3 (da) 1995-10-02
EP0493231A1 (de) 1992-07-01
DE69109647T3 (de) 2003-12-18
ES2072580T5 (es) 2003-09-01
DE69109647T2 (de) 1995-12-14
DK0493231T4 (da) 2003-05-05
ATE122425T1 (de) 1995-05-15
ES2072580T3 (es) 1995-07-16
DE69109647D1 (de) 1995-06-14
FR2670812B1 (fr) 1996-06-21
EP0493231B2 (de) 2003-01-22

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