EP0317514B1 - Verfahren zur Herstellung eines Dokumentes, welches wenigstens zum Teil durch Photokopieren nicht reproduzierbar ist - Google Patents

Verfahren zur Herstellung eines Dokumentes, welches wenigstens zum Teil durch Photokopieren nicht reproduzierbar ist Download PDF

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Publication number
EP0317514B1
EP0317514B1 EP88810785A EP88810785A EP0317514B1 EP 0317514 B1 EP0317514 B1 EP 0317514B1 EP 88810785 A EP88810785 A EP 88810785A EP 88810785 A EP88810785 A EP 88810785A EP 0317514 B1 EP0317514 B1 EP 0317514B1
Authority
EP
European Patent Office
Prior art keywords
layer
document
photocopying
dark
iridescent
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
EP88810785A
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English (en)
French (fr)
Other versions
EP0317514A1 (de
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 Etablissement
Original Assignee
Lipatec Etablissement
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
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Application filed by Lipatec Etablissement filed Critical Lipatec Etablissement
Publication of EP0317514A1 publication Critical patent/EP0317514A1/de
Application granted granted Critical
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Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • B42D25/40—Manufacture
    • B42D25/45—Associating two or more layers
    • 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
    • B42D25/36—Identification or security features, e.g. for preventing forgery comprising special materials
    • B42D25/378—Special inks
    • 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
    • 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
    • B42D25/20—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof characterised by a particular use or purpose
    • B42D25/29—Securities; Bank notes
    • 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
    • B42D25/36—Identification or security features, e.g. for preventing forgery comprising special materials
    • 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
    • B42D25/40—Manufacture
    • B42D25/45—Associating two or more layers
    • B42D25/465—Associating two or more layers using chemicals or adhesives
    • B42D25/47—Associating two or more layers using chemicals or adhesives using adhesives
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C5/00—Photographic processes or agents therefor; Regeneration of such processing agents
    • G03C5/08—Photoprinting; Processes and means for preventing photoprinting
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G21/00—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge
    • G03G21/04—Preventing copies being made of an original
    • G03G21/043—Preventing 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
    • Y—GENERAL 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S283/00—Printed matter
    • Y10S283/902—Anti-photocopy
    • Y—GENERAL 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S428/00—Stock material or miscellaneous articles
    • Y10S428/916—Fraud or tamper detecting
    • Y—GENERAL 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24802—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.]
    • Y—GENERAL 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24802—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.]
    • Y10T428/24851—Intermediate layer is discontinuous or differential
    • Y10T428/24868—Translucent outer layer

Definitions

  • the subject of the present invention is a method of manufacturing a document at least part of which is not reproducible by photocopying, comprising a support and alphanumeric or graphic information carried by this support, in which the surface of the support is formed in said non-reproducible part of the document, adjacent areas by depositing a continuous background layer of dark color, then a discontinuous layer forming said alphanumeric or graphic information.
  • a document comprising a medium, for example a film or a paper, bearing alphanumeric or graphic information, prepared by manual writing, typewriter, photocopying, printing, telex or facsimile, can be reproduced by a large number of photocopy without the knowledge of the information holder.
  • Illegal copying of documents is becoming increasingly common in the economic, scientific, political or military fields and can result in irreparable financial or moral harm.
  • publication FR-A-2 429 292 describes a security paper provided with a layer comprising an iridescent substance as a security agent, with the aim of protecting against the falsification and counterfeiting of payment documents and documents official by reproduction with color photocopiers.
  • the iridescent substance gives optical effects such as changes in reflections, tints or shades depending on the angle of observation and these color effects cannot be reproduced by any photocopying system, an imitation or counterfeiting of the document does not is not possible.
  • an ordinary photocopier one can obtain copies in black and white which are completely readable.
  • GB-A-2 143 774 relates to a self-adhesive film intended to be applied to documents to protect them against photocopying.
  • This product is composed of a mass-colored film and a semi-transparent metal layer deposited by vacuum metallization. This self-adhesive film gives good protection against photocopying.
  • the weak contrast between the dark color of the background and the text constitutes a serious obstacle to the readability of the document.
  • the object of the present invention is to provide a simple and economical process for the production of documents which, while having good contrast for the human eye, cannot be reproduced in the form of legible photocopies, even by black photocopying. and white, in particular by means of office reproduction apparatus.
  • the present invention relates to a method of the type indicated in the preamble, in which the discontinuous layer is dark, for example a black print, the method being characterized in that a layer containing at least one iridescent substance is applied. on the dark colored base layer, before depositing said discontinuous layer.
  • the invention relates to a method of the type indicated in the preamble, characterized in that said discontinuous layer, deposited on the dark-colored base layer, contains at least one iridescent substance.
  • the present invention is based on the discovery, during the search for the solution to the problem posed by the production of a document of which it is not possible to make a legible photocopy, only by photocopying a layer containing one or more iridescent substances and deposited on a dark layer, a black copy is always obtained, whatever the level of brightness, although the surface containing the iridescent substance (s) is colored.
  • a black copy is always obtained, whatever the level of brightness, although the surface containing the iridescent substance (s) is colored.
  • iridescent substance is meant a substance which, according to the principle of light diffraction by thin layers, causes, depending on the angle of observation, reflections whose colors cover the rainbow spectrum of decomposed white light.
  • pearlescent pigments composed of thin platelets of 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.
  • 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 .
  • Layers containing one or more iridescent substances can be prepared according to techniques known in the printing and coating field, for example, gravure 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 alphanumeric 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. They can also be deposited by chemical reaction, such as whether found in silver photography, diazotic images 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 and 2 schematically illustrate, by way of nonlimiting examples, two 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 a document obtained by a first mode of implementation of the method.
  • This mode consists in depositing on a support 1, 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 entirely dark.
  • FIG. 2 represents, in section, a part of the part which cannot be reproduced by photocopying a document obtained by a second mode of implementation of the method.
  • This mode consists in depositing on a support 1, white or colored, a single layer 4, dark in color, then deposit, on this layer 4, layers 3 containing at least one iridescent substance, in the form of desired alpha-numeric or graphic information.
  • the layers 3 are formed by printing at using ink comprising at least one iridescent pigment. They can also be formed by xerography, each by means of a layer of powder toner onto which the layer containing at least one iridescent substance is thermally transferred, from a special film. 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 without image trace.
  • the information represented by the ranges 3 appear with the colors specific to iridescent pigments when they receive ambient light at an angle less than the critical angle and are therefore clearly legible on the dark background 4.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Manufacturing & Machinery (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Accounting & Taxation (AREA)
  • Finance (AREA)
  • Printing Methods (AREA)
  • Credit Cards Or The Like (AREA)
  • Cleaning In Electrography (AREA)

Claims (4)

1. Verfahren zur Herstellung eines Dokumentes, welches wenigstens zum Teil durch Photokopieren nicht reproduzierbar ist, mit einer Unterlage (1) und darauf angebrachten alphanumerischen oder graphischen Angaben, wobei zur Bildung angrenzender Bereiche im nicht reproduzierbaren Teil auf die Oberfläche der Unterlage (1) eine ununterbrochene dunkelfarbige Unterschicht (4), dann eine dunkle unterbrochene Schicht (3) angebracht wird, die die genannten alphanumerischen oder graphischen Angaben bildet, dadurch gekennzeichnet, dass eine mindestens einen irisierenden Stoff enthaltende Schicht (2) auf die dunkelfarbige Unterschicht (4) aufgetragen wird, bevor die unterbrochene Schicht (3) angebracht wird.
2. Verfahren zur Herstellung eines Dokumentes, welches wenigstens zum Teil durch Photokopieren nicht reproduzierbar ist, mit einer Unterlage (1) und darauf angebrachten alphanumerischen oder graphischen Angaben, wobei zur Bildung angrenzender Bereiche im nicht reproduzierbaren Teil auf die Oberfläche der Unterlage (1) eine ununterbrochene dunkelfarbige Unterschicht (4), dann eine unterbrochene Schicht (3) angebracht wird, die die genannten alphanumerischen oder graphischen Angaben bildet, dadurch gekennzeichnet, dass die unterbrochene Schicht (3), die auf die dunkelfarbigen Unterschicht (4) angebracht wird, mindestens einen irisierenden Stoff enthält.
3. Verfahren nach Anspruch 2, dadurch gekennzeichnet, dass die ununterbrochene Schicht (4) unmittelbar auf die Unterlage (1), dann die unterbrochene Schicht (3) unmittelbar auf die ununterbrochene Schicht (4) aufgetragen wird.
4. Dokument, das durch ein Verfahren nach einem der vorstehenden Ansprüche hergestellt ist.
EP88810785A 1987-11-20 1988-11-16 Verfahren zur Herstellung eines Dokumentes, welches wenigstens zum Teil durch Photokopieren nicht reproduzierbar ist Expired - Lifetime EP0317514B1 (de)

Applications Claiming Priority (2)

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

Publications (2)

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

Family

ID=4277596

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88810785A Expired - Lifetime EP0317514B1 (de) 1987-11-20 1988-11-16 Verfahren zur Herstellung eines Dokumentes, welches wenigstens zum Teil durch Photokopieren nicht reproduzierbar ist

Country Status (6)

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

Cited By (1)

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RU2538865C2 (ru) * 2008-08-28 2015-01-10 Гизеке Унд Девриент Гмбх Изображение с бинарным кипп-эффектом

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EP0317514A1 (de) 1989-05-24
CH672687A5 (de) 1989-12-15
DE3873034T2 (de) 1993-02-11
AU2569788A (en) 1989-05-25
US5087507A (en) 1992-02-11
DE3873034D1 (de) 1992-08-27
JPH01155381A (ja) 1989-06-19

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