EP0317514A1 - Process for producing a document of which at least a part is not reproducible by means of photocopying - Google Patents

Process for producing a document of which at least a part is not reproducible by means of photocopying Download PDF

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Publication number
EP0317514A1
EP0317514A1 EP88810785A EP88810785A EP0317514A1 EP 0317514 A1 EP0317514 A1 EP 0317514A1 EP 88810785 A EP88810785 A EP 88810785A EP 88810785 A EP88810785 A EP 88810785A EP 0317514 A1 EP0317514 A1 EP 0317514A1
Authority
EP
European Patent Office
Prior art keywords
iridescent
deposited
layers
characterized
layer
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.)
Granted
Application number
EP88810785A
Other languages
German (de)
French (fr)
Other versions
EP0317514B1 (en
Inventor
Paul Heinzer
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.)
Lipatec Et
Original Assignee
Lipatec Et
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
Priority to CH4518/87A priority Critical patent/CH672687A5/fr
Priority to CH4518/87 priority
Application filed by Lipatec Et filed Critical Lipatec Et
Publication of EP0317514A1 publication Critical patent/EP0317514A1/en
Application granted granted Critical
Publication of EP0317514B1 publication Critical patent/EP0317514B1/en
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=4277596&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0317514(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Anticipated expiration legal-status Critical
Revoked legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B42BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42DBOOKS; 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
    • B42D25/00Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/30Identification or security features, e.g. for preventing forgery
    • B42D25/36Identification or security features, e.g. for preventing forgery comprising special materials
    • B42D25/378Special inks
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41MPRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M3/00Printing processes to produce particular kinds of printed work, e.g. patterns
    • B41M3/14Security printing
    • B41M3/144Security printing using fluorescent, luminescent or iridescent effects
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B42BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42DBOOKS; 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
    • B42D25/00Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/40Manufacture
    • B42D25/45Associating two or more layers
    • B42D25/465Associating two or more layers using chemicals or adhesives
    • B42D25/47Associating two or more layers using chemicals or adhesives using adhesives
    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03CPHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C5/00Photographic processes or agents therefor; Regeneration of such processing agents
    • G03C5/08Photoprinting; Processes and means for preventing photoprinting
    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03GELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G21/00Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge
    • G03G21/04Preventing copies being made of an original
    • G03G21/043Preventing copies being made of an original by using an original which is not reproducible or only reproducible with a different appearence, e.g. originals with a photochromic layer or a colour background
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B42BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42DBOOKS; 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
    • B42D2035/00Nature or shape of the markings provided on identity, credit, cheque or like information-bearing cards
    • B42D2035/12Shape of the markings
    • B42D2035/20Optical effects
    • B42D2035/24Colours
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S283/00Printed matter
    • Y10S283/902Anti-photocopy
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S428/00Stock material or miscellaneous articles
    • Y10S428/916Fraud or tamper detecting
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/24Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24802Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.]
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/24Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24802Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.]
    • Y10T428/24851Intermediate layer is discontinuous or differential
    • Y10T428/24868Translucent outer layer

Abstract

The process consists in forming on the surface of the support (1) of the non-reproducible part of the document, adjacent areas by deposition of layers (2) containing at least one iridescent substance and of dark-coloured layers (3). …<IMAGE>…

Description

  • The subject of the present invention is a method of manufacturing a document comprising a medium carrying alpha-numeric or graphic information, at least part of which is not reproducible by photocopying.
  • A document comprising a medium, for example a film or a paper, bearing alpha-numeric or graphic information, prepared by manual writing, typewriter, photocopying, printing, telex or facsimile, can be reproduced by a large number of photocopying machines, without the knowledge of the information holder. Illegal copying of documents is becoming more and more common in the economic, scientific, political and military fields and can cause irreparable financial or moral harm.
  • Efforts to protect against falsification and counterfeiting of payment documents and official documents, such as paper money, checks, cash vouchers, identity cards and passports, have led to technical solutions based on the use of watermarks, threads, fibers and colored, metallized or magnetizable boards. The state of the art in this field is described in patent GB 1,127,043. Unfortunately, the security papers prepared according to these methods provide little protection. or not the documents against photocopying.
  • Various processes, products and devices for prohibiting the reproduction of documents have been patented and sometimes marketed, such as, for example, a cocoa-colored coated paper produced by Calspan and Ludlow Papier co., Needham Heigts, Mass., USA. US Patent 3,597,082 relates to photochromatic pigments to avoid photocopying. Patent FR 2,177,292 issued to IBM recommends the use of special inks printed on a US Pat. No. 4,578,298 relates to a self-adhesive film allowing the protection of documents against photocopying. This product is composed of a film colored in the mass and a layer of semi-transparent metal deposited by vacuum metallization. The company Nacopi International Inc. presented a security paper which cannot be reproduced by photocopying, based on a composition of dyes of dark colors covering the spectrum of sensitivity of modern photocopiers.
  • All these products are expensive to manufacture or of limited application, or of poor quality as regards the contrast of the image of the document.
  • The object of the present invention is to provide a simple and economical process for the production of documents which cannot be reproduced by office reproduction apparatus and which have good contrast for the human eye.
  • To this end, the method according to the present invention is characterized in that adjacent areas are formed on the surface of the non-reproducible part of the document support by the deposition of layers containing at least one iridescent substance and layers of dark.
  • The present invention is based on the discovery during research of the solution to the problem posed by the production of a non-reproducible document by photocopying, that by photocopying a layer containing one or more iridescent substances one always obtains, whatever the level of luminosity, a black copy, although the surface containing the iridescent substance (s) is colored. By juxtaposing dark colored areas and areas containing such iridescent substances, images with good contrast can be formed for the human eye , but which, photocopied, give a continuous black surface, with no image discernible to the human eye.
  • By iridescent substance is meant a substance which, according to the principle of diffraction of light by thin layers, causes, depending on the angle of observation, reflections whose colors cover the rainbow spectrum of the decomposed white light. As suitable iridescent substances, we can mention pearlescent pigments composed of thin platelets mica coated with a thin layer of titanium dioxide. Interference colors are formed by refraction and reflection of light on the layer of titanium dioxide with a high refractive index. Each colored shade results from a defined thickness of the layer of titanium dioxide. The successive coating of the mica with titanium dioxide and an additional dye, such as iron oxide (III) or chromium oxide (III) leads to iridescent pigments with bright colored effects combining the action pearlescent pigment and coloring pigment. Such pigments allow metallic effects to be achieved without being exposed to the disadvantages of metals or their alloys. The particle size range determines the effect. Large particles give a glittery effect, while finer particles give a rather silky luster. Among the iridescent pigments we can cite, for example, the Irodins manufactured by E.Merck, D-6100 Darmstadt, and the Merlin Luster Pigments manufactured by The Mearl Corporation, New York, NY, USA .
  • During this research it was found that the effect of iridescent pigments can be enhanced by placing the layer containing one or more iridescent substances on a dark colored substrate.
  • Layers containing one or more iridescent substances can be prepared according to techniques known in the printing and coating field, for example, heliographic printing, offset printing or coating with Mayerbar. in the form of a single layer over the entire surface of the non-reproducible part of the document, either in the form of alpha-numeric or graphic information. It is also possible to deposit the layers containing at least one substance iridescent in the form of a frame or any other motif.
  • The dark colored layers can be deposited by known techniques, in most cases in the form of alpha-numeric or graphic information, for example by manual or mechanical writing, or even by printing, such as offset or Gravure printing. Dark layers can also be formed by non-mechanical printing, such as inkjet, laser printer, photocopying or thermal transfer techniques. They can also be deposited by chemical reaction, such as whether found in silver photography, diazotics or carbon-free chemical papers. More information on these chemical processes can be found in GB 1 298 194, US 4,137,084 and US 4,162,165 .
  • Figures 1 to 4 schematically illustrate, by way of nonlimiting examples, four of the possible modes of implementing the method according to the present invention.
  • FIG. 1 represents, in section, a part of the part which cannot be reproduced by photocopying of a document obtained by a first mode of implementation of the method. This mode consists in depositing on a support l, white or colored, a single layer 2 containing at least one iridescent substance. The layers 3, of dark color, are then deposited on the coated support l, in the form of desired information, for example, by manual writing, by photocopying, if the support l is introduced coated in a photocopier instead of normal paper, or offset printing on the coated support. The document thus prepared cannot be photocopied, since any photocopy of such a document only gives a black copy without information.
  • FIG. 2 represents, in section, a part of the part which cannot be reproduced by photocopying of a document obtained by a second mode of implementation of the method. This mode consists in depositing on a support l, white or colored, first a single layer 4, of dark color, on which a single layer 2 is then deposited containing at least one iridescent substance and, on it, layers 3 of dark color, in the form of desired alpha-numeric or graphic information. The presence of layer 4 enhances the effect of the iridescent substance or substances contained in layer 2, so that a photocopy of the document thus obtained will be even darker than that of the document shown in FIG. 1, hence greater security against any improper reproduction.
  • FIG. 3 represents, in section, a part of the part which cannot be reproduced by photocopying a document obtained by a third mode of implementation of the method. This mode consists in depositing layers 3, white or colored, , dark in color, in the form of desired information. Then, over layers 3, by means of a self-adhesive adhesive 5, a single layer 2 containing at least one iridescent substance, previously deposited on one side of a layer, is deposited. transparent film 6. The assembly formed of film 6, layer 2 and adhesive 5, prepared in advance by coating one face of film 6 with layer 2, then this one with a layer of adhesive 5, is laminated to the support 1. This mode of implementation of the method therefore lends itself particularly to protection against reproduction of an existing document. By using a repositionable adhesive, an existing document reproducible by photocopy, can be rendered , in whole or in part, not reproducible and then reproducible again.
  • FIG. 4 represents, in section, a part of the non-reproducible part by photocopying of a document obtained by a fourth mode of implementation of the method. This mode consists in depositing on a white or colored support, a single layer 3, dark in color, then deposit, on this layer 3, layers 2 containing at least one iridescent substance, in the form of desired alpha-numeric or graphic information. In this case, the layers 2 are formed by printing at using com ink taking at least one iridescent pigment. They can also be formed by xerography, each by means of a layer of powder toner to which the layer containing at least one iridescent substance is thermally transferred, from a special film. such transfer process is marketed by Omnicrom Systems Ltd., GB- Bolton. Photocopying a document obtained by this mode of implementation of the process, gives a black surface with no image trace.

Claims (8)

  1. l.Process for manufacturing a document comprising a medium carrying alpha-numeric or graphic information, at least part of which is not reproducible by photocopying, characterized in that the non-reproducible part of the film is formed on the surface support (1) for documenting adjacent areas by depositing layers (2) containing at least one iridescent substance and layers (3) of dark color.
  2. 2. The method of claim l, characterized in that the depositing of the layers (2) containing at least one iridescent substance, in the form of a single layer over the entire surface of the non-repeatable portion of a support ( l) white or colored and which is deposited on this single layer (2) layers (3) of dark color, in the form of alpha-numeric or graphic information.
  3. 3. A method according to claim 2, characterized in that the single layer is deposited (2) sue the carrier (s) over a layer (4) of dark color previously deposited on the substrate (l) .
  4. 4. The method of claim l, characterized in that one deposits on the surface of the non-repeatable portion of a support (s) white or colored layer (3) of dark color, in the form of information alpha -digital or graphic and which are then deposited on the support (1), over layers (3) of dark color, by means of a self-adhesive adhesive (5), a single layer (2) containing at least an iridescent substance, previously deposited on a transparent film (6).
  5. 5. The method of claim l, characterized in that it is deposited over the entire surface of the non-repeatable portion of a support (s) a single white or colored layer (3) dark on which is then deposited , in the form of alphanumeric or graphic information, layers (2) containing at least one sub iridescent stanza.
  6. 6. Method according to one of the preceding claims, characterized in that at least one of the iridescent substances is an iridescent pigment with colored radiance.
  7. 7. Method according to one of the preceding claims, characterized in that the layer (2) containing at least one iridescent substance is deposited in the form of a frame.
  8. 8. Document obtained according to one of the preceding claims.
EP88810785A 1987-11-20 1988-11-16 Process for producing a document of which at least a part is not reproducible by means of photocopying Revoked EP0317514B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CH4518/87A CH672687A5 (en) 1987-11-20 1987-11-20
CH4518/87 1987-11-20

Publications (2)

Publication Number Publication Date
EP0317514A1 true EP0317514A1 (en) 1989-05-24
EP0317514B1 EP0317514B1 (en) 1992-07-22

Family

ID=4277596

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88810785A Revoked EP0317514B1 (en) 1987-11-20 1988-11-16 Process for producing a document of which at least a part is not reproducible by means of photocopying

Country Status (6)

Country Link
US (1) US5087507A (en)
EP (1) EP0317514B1 (en)
JP (1) JPH01155381A (en)
AU (1) AU2569788A (en)
CH (1) CH672687A5 (en)
DE (2) DE3873034T2 (en)

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FR2670812A1 (en) * 1990-12-21 1992-06-26 Arjomari Europ Printable sheet for manufacturing security documents having a means against counterfeit or authentication.
EP0657297A1 (en) * 1993-12-10 1995-06-14 AGFA-GEVAERT naamloze vennootschap Security document having a transparent or translucent support and containing interference pigments.
WO1995016224A1 (en) * 1993-12-10 1995-06-15 Agfa-Gevaert Naamloze Vennootschap Opaque document containing interference pigments providing easy verification and protection against photo-copying
EP0775589A1 (en) * 1995-11-23 1997-05-28 AGFA-GEVAERT naamloze vennootschap Laminated security document containing fluorescent dye
FR2782470A1 (en) * 1998-08-19 2000-02-25 Imprimerie Nationale Method of printing on a document to provide control of its authenticity
DE102008044809A1 (en) 2008-08-28 2010-03-04 Giesecke & Devrient Gmbh Binary tilt picture
EP2465703A2 (en) 2010-12-17 2012-06-20 Giesecke & Devrient GmbH Structured colour-shift security element
US10061065B2 (en) 2013-11-18 2018-08-28 Viavi Solutions Inc. Interference pigments or foils as separate structures having color match or mismatch depending on viewing angle
EP3594012A1 (en) 2018-07-12 2020-01-15 Giesecke+Devrient Mobile Security GmbH Valuable document having optical security feature

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FR3004471B1 (en) 2013-04-11 2015-10-23 Arjowiggins Security Security element comprising a masking structure containing a mixture of nanometer charges.
FR3004470B1 (en) * 2013-04-11 2015-05-22 Arjowiggins Security Security element comprising an interferential pigment and a nanometric load.
DE102014115045A1 (en) * 2014-10-16 2016-04-21 Schreiner Group Gmbh & Co. Kg Printed product with optical security feature

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US4352706A (en) * 1981-08-31 1982-10-05 Miller Lee H Process for applying a metallic image in register to a document of value
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FR2646183A1 (en) * 1989-04-19 1990-10-26 Tucherer Laurent Non-photocopiable document
EP0467067A2 (en) * 1990-07-18 1992-01-22 Heinrich Bauer Verlag Printing support and printing process with such support
EP0467067A3 (en) * 1990-07-18 1992-05-06 Heinrich Bauer Verlag Printing support and printing process with such support
EP0493231A1 (en) * 1990-12-21 1992-07-01 Arjo Wiggins S.A. Printable sheet, for making security documents including means against counterfeiting or for allowing authentification
FR2670812A1 (en) * 1990-12-21 1992-06-26 Arjomari Europ Printable sheet for manufacturing security documents having a means against counterfeit or authentication.
US6210777B1 (en) 1993-12-10 2001-04-03 Agfa-Gevaert Security document having a transparent or translucent support and containing interference pigments
EP0657297A1 (en) * 1993-12-10 1995-06-14 AGFA-GEVAERT naamloze vennootschap Security document having a transparent or translucent support and containing interference pigments.
WO1995015856A1 (en) * 1993-12-10 1995-06-15 Agfa-Gevaert Naamloze Vennootschap Security document having a transparent or translucent support and containing interference pigments
WO1995016224A1 (en) * 1993-12-10 1995-06-15 Agfa-Gevaert Naamloze Vennootschap Opaque document containing interference pigments providing easy verification and protection against photo-copying
EP0775589A1 (en) * 1995-11-23 1997-05-28 AGFA-GEVAERT naamloze vennootschap Laminated security document containing fluorescent dye
FR2782470A1 (en) * 1998-08-19 2000-02-25 Imprimerie Nationale Method of printing on a document to provide control of its authenticity
DE102008044809A1 (en) 2008-08-28 2010-03-04 Giesecke & Devrient Gmbh Binary tilt picture
WO2010022952A1 (en) * 2008-08-28 2010-03-04 Giesecke & Devrient Gmbh Binary ambiguous image
EP2465703A2 (en) 2010-12-17 2012-06-20 Giesecke & Devrient GmbH Structured colour-shift security element
DE102010054854A1 (en) 2010-12-17 2012-06-21 Giesecke & Devrient Gmbh Structured Colorshift security element
EP2465703A3 (en) * 2010-12-17 2013-04-03 Giesecke & Devrient GmbH Structured colour-shift security element
US10061065B2 (en) 2013-11-18 2018-08-28 Viavi Solutions Inc. Interference pigments or foils as separate structures having color match or mismatch depending on viewing angle
EP3594012A1 (en) 2018-07-12 2020-01-15 Giesecke+Devrient Mobile Security GmbH Valuable document having optical security feature
DE102018005551A1 (en) 2018-07-12 2020-01-16 Giesecke+Devrient Mobile Security Gmbh Security document with optical security feature

Also Published As

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DE3873034D1 (en) 1992-08-27
AU2569788A (en) 1989-05-25
DE3873034T2 (en) 1993-02-11
CH672687A5 (en) 1989-12-15
US5087507A (en) 1992-02-11
JPH01155381A (en) 1989-06-19
EP0317514B1 (en) 1992-07-22

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