DE59006135D1 - Process for recognizing copies. - Google Patents

Process for recognizing copies.

Info

Publication number
DE59006135D1
DE59006135D1 DE59006135T DE59006135T DE59006135D1 DE 59006135 D1 DE59006135 D1 DE 59006135D1 DE 59006135 T DE59006135 T DE 59006135T DE 59006135 T DE59006135 T DE 59006135T DE 59006135 D1 DE59006135 D1 DE 59006135D1
Authority
DE
Germany
Prior art keywords
colour
orange
fluorescent
shade
copies
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.)
Revoked
Application number
DE59006135T
Other languages
German (de)
Inventor
Folker Jung
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.)
JUNG BAYROPA GmbH
Original Assignee
JUNG BAYROPA 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6393928&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE59006135(D1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by JUNG BAYROPA GmbH filed Critical JUNG BAYROPA GmbH
Application granted granted Critical
Publication of DE59006135D1 publication Critical patent/DE59006135D1/en
Anticipated expiration legal-status Critical
Revoked legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Cleaning In Electrography (AREA)
  • Printing Methods (AREA)
  • Credit Cards Or The Like (AREA)
  • Holo Graphy (AREA)
  • Photoreceptors In Electrophotography (AREA)
  • Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems (AREA)

Abstract

In order to be able to distinguish coloured copies from original documents, e.g. driving licences, the original is printed with one fluorescent and one non-fluorescent offset ink, these inks having approximately the same colour shade, e.g. the colour shade orange. In the copy, the fluorescent colour is reproduced in the incorrect shade, e.g. in the case of orange the colour seen will now be mid-brown, so that the colours orange and mid-brown appear on the copy.
DE59006135T 1989-11-21 1990-08-03 Process for recognizing copies. Revoked DE59006135D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3938603A DE3938603A1 (en) 1989-11-21 1989-11-21 METHOD FOR DETECTING COPIES

Publications (1)

Publication Number Publication Date
DE59006135D1 true DE59006135D1 (en) 1994-07-21

Family

ID=6393928

Family Applications (2)

Application Number Title Priority Date Filing Date
DE3938603A Withdrawn DE3938603A1 (en) 1989-11-21 1989-11-21 METHOD FOR DETECTING COPIES
DE59006135T Revoked DE59006135D1 (en) 1989-11-21 1990-08-03 Process for recognizing copies.

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE3938603A Withdrawn DE3938603A1 (en) 1989-11-21 1989-11-21 METHOD FOR DETECTING COPIES

Country Status (3)

Country Link
EP (1) EP0428828B1 (en)
AT (1) ATE107234T1 (en)
DE (2) DE3938603A1 (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IL99930A0 (en) * 1991-11-01 1992-08-18 Egged Israel Transport Coopera Low contrast color combination for preventing copying via color photocopying
DE4220344C2 (en) * 1992-06-24 1994-06-23 Trautwein Gmbh & Co Plaque protected against duplication and / or improper removal and reuse
DE4236143A1 (en) * 1992-10-26 1994-04-28 Bayer Ag Substrate with visible information protected against copying - prepd. with combination of adjacent fields of emitting and remitting colourants of almost same nuance when viewed without fluorescence
EP0603117B1 (en) * 1992-12-03 1996-12-27 Ciba-Geigy Ag Method for preparing coloured, printed security papers
IT1275363B (en) * 1994-07-21 1997-08-05 Alagao Ag PROCEDURE FOR THE ANTI-COUNTERFEIT PROTECTION OF DOCUMENTS MADE ON PAPER SUPPORTS OR OTHER OPPORTUNITIES
DE29501488U1 (en) * 1995-01-31 1995-03-30 Granderath Gmbh J Anti-counterfeit ticket
DE29513468U1 (en) * 1995-08-22 1997-01-02 Hummel Gmbh U Co Counterfeit-proof document
GB9719459D0 (en) * 1997-09-12 1997-11-12 Bank Of England Printed articles
GB2370349A (en) * 2000-12-19 2002-06-26 Innovision Res And Technology Information providing apparatus such as a question and answer game
GB0228303D0 (en) † 2002-12-04 2003-01-08 Rue De Int Ltd Security device and method
EP2730426B1 (en) * 2004-10-15 2018-03-07 YOSHIDA, Kenji Printing unit
US7520601B2 (en) 2004-10-29 2009-04-21 Agfa Graphics, N.V. Printing of radiation curable inks into a radiation curable liquid layer

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3713861A (en) * 1969-12-04 1973-01-30 Xerox Corp Inhibitor device
US4277514A (en) * 1978-03-07 1981-07-07 Toppan Printing Co., Ltd. Forgery resistant document with colored areas and method for thwarting reproduction of same
DE2910176A1 (en) * 1979-03-15 1980-09-25 Guenter Alt Illegal reproduction prevention for gramophone records - involves printing identification code in ink visible only in UV
JPS58184967A (en) * 1982-04-23 1983-10-28 Ricoh Co Ltd Preventing method of duplication of confidential document
GB2139955B (en) * 1983-05-20 1987-03-04 Gen Electric Plc Preventing unauthorised copying

Also Published As

Publication number Publication date
EP0428828A3 (en) 1991-08-14
DE3938603A1 (en) 1991-05-23
EP0428828B1 (en) 1994-06-15
ATE107234T1 (en) 1994-07-15
EP0428828A2 (en) 1991-05-29

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Legal Events

Date Code Title Description
8363 Opposition against the patent
8331 Complete revocation