EP0609493A1 - Sustrat protégé contre tirage et procédé pour sa fabrication - Google Patents

Sustrat protégé contre tirage et procédé pour sa fabrication Download PDF

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Publication number
EP0609493A1
EP0609493A1 EP93116545A EP93116545A EP0609493A1 EP 0609493 A1 EP0609493 A1 EP 0609493A1 EP 93116545 A EP93116545 A EP 93116545A EP 93116545 A EP93116545 A EP 93116545A EP 0609493 A1 EP0609493 A1 EP 0609493A1
Authority
EP
European Patent Office
Prior art keywords
colorant
information
substrates according
substrate
color
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
EP93116545A
Other languages
German (de)
English (en)
Other versions
EP0609493B1 (fr
Inventor
Horst Dr. Berneth
Uwe Dr. Claussen
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.)
Bayer AG
Original Assignee
Bayer AG
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 Bayer AG filed Critical Bayer AG
Publication of EP0609493A1 publication Critical patent/EP0609493A1/fr
Application granted granted Critical
Publication of EP0609493B1 publication Critical patent/EP0609493B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • 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
    • Y10S428/914—Transfer or decalcomania
    • Y10S428/915—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
    • 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.]
    • Y10T428/24835—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.] including developable image or soluble portion in coating or impregnation [e.g., safety paper, 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.]
    • Y10T428/24893—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.] including particulate material
    • Y10T428/24901—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.] including particulate material including coloring matter
    • 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.]
    • Y10T428/24934—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.] including paper layer

Definitions

  • the invention relates to substrates protected against unauthorized copying and to processes for their production.
  • a new method for copy protection of colored originals is now presented, which takes advantage of the difference in the sensitivity of the eye and the sensor located in the machine in a surprising manner. While the eye does not distinguish between remission and emission radiation, and perceives both as an overall color impression, the sensor only measures the absorption and is blind to the emission radiation. This leads to a difference in the color location determination compared to the optical impression and the surprising effect of the color identity for the eye or the sensor.
  • the invention is now directed to selecting an emitting and a remitting colorant in such a way that the nuance when viewed when fluorescence is not perceived is similar or identical.
  • the invention relates to substrates with visible information thereon, which are protected against unauthorized copying, which are characterized in that such a colorant combination of at least one emitting and at least one remitting colorant is used to apply the information, the color shade of which is observed when the fluorescence is not perceived is similar or the same, the information being applied by the colorant combination such that the different color fields touch or are close to one another.
  • the invention further relates to methods for protecting substrates with visible information attached to them against unauthorized copying, which is characterized in that such a colorant combination of at least one emitting and at least one remitting colorant is used to apply the information, the color shade of which is observed when not being perceived Fluorescence is similar or the same, the information being applied by the colorant combination so that the different color fields touch or are close to one another.
  • a pattern made from a colorant combination according to the invention if recognizable in the original, appears in the copy as a monochrome spot. You can use multiple colorant combinations at the same time to create complex color samples.
  • the reflective colorant can be composed of several colorants, which results in the possibility of an exact adaptation of the shade to the retroreflection spectrum of the emissive partner.
  • Suitable colorants for combinations are usually designed so that their absorption spectra look similar in position and band shape.
  • the absorption maxima should not be more than 30 nm apart, preferably no more than 20 nm apart.
  • the half-wave width of the dyes in solution ie the spectral width of the longest-wave band at half maximum extinction ( ⁇ / 2 at ⁇ max. ) Should be ⁇ 150 nm, preferably ⁇ 100 nm.
  • the fluorescent colorant can also consist of mixtures, which, however, must be structured in such a way that no absorption occurs within the emission band. It will preferably be colorants which absorb similarly to the reflective colorant.
  • One form of application of the invention is to print a pattern on paper with the emitting and remitting colorant by making the areas printed with the different colorants touch or be close to each other.
  • the printing ink contains the colorants as color pigments or as plastic powders colored with dyes or polymer dispersions in binders customary for printing inks.
  • the printing ink can also contain the dyes in dissolved form
  • Suitable plastic powders are, for example, polyacrylonitrile, polyester, polycarbonate, epoxy resins, melamine-formaldehyde resins;
  • Suitable dispersions are, for example, styrene acrylates, polyurethanes or polyureas.
  • Suitable pigments are all color pigments, preferably organic color pigments.
  • a special form are the salts of cationic dyes with poorly solubilizing acids such as molybdate phosphate, tungsten phosphate, molybdate silicate, tungsten silicate or suitable organic carbon or sulfonic acids.
  • Suitable dyes for coloring the plastic powders or polymer dispersions are all neutral or cationic dyes that dissolve in these media or stain them well through salt formation or that can be incorporated into the polymer via reactive groups.
  • Another form of application of the invention is to dye paper with one dye and to print a pattern with the other.
  • the remitting dye is preferably used for coloring the paper.
  • the printing ink can be constructed as described above.
  • a solution of the dye in microencapsulated form can also be used as the printing ink.
  • Suitable dyes for dyeing the paper are all cationic or anionic dyes that have an affinity for cellulose fiber.
  • Suitable dyes for microcapsules are all neutral dyes which dissolve sufficiently in the solvents customary for microencapsulation, such as aliphatic, aromatic and chlorinated hydrocarbons.
  • all paper-like materials, such as nonwovens, but also plastic films, can be used. Paper is preferred.
  • the number "10” was painted with the dispersion from c) of Example 1, the surrounding field with the dispersion from d) of Example 1. Here, too, the eye could read the number clearly, but it disappeared on the color copy.
  • the dyes used in Examples 3-7 can be used analogously.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Printing Methods (AREA)
  • Credit Cards Or The Like (AREA)
  • Cleaning In Electrography (AREA)
  • Developing Agents For Electrophotography (AREA)
EP93116545A 1992-10-26 1993-10-13 Sustrat protégé contre tirage et procédé pour sa fabrication Expired - Lifetime EP0609493B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4236143 1992-10-26
DE4236143A DE4236143A1 (de) 1992-10-26 1992-10-26 Gegen unbefugtes Kopieren geschützte Substrate und Verfahren zu ihrer Herstellung

Publications (2)

Publication Number Publication Date
EP0609493A1 true EP0609493A1 (fr) 1994-08-10
EP0609493B1 EP0609493B1 (fr) 1999-01-13

Family

ID=6471394

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93116545A Expired - Lifetime EP0609493B1 (fr) 1992-10-26 1993-10-13 Sustrat protégé contre tirage et procédé pour sa fabrication

Country Status (4)

Country Link
US (1) US5425978A (fr)
EP (1) EP0609493B1 (fr)
JP (1) JPH06219037A (fr)
DE (2) DE4236143A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7597961B2 (en) 2004-07-13 2009-10-06 Sabic Innovative Plastics Ip B.V. Authenticatable article and method of authenticating

Families Citing this family (41)

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Publication number Priority date Publication date Assignee Title
US6211383B1 (en) 1993-08-05 2001-04-03 Kimberly-Clark Worldwide, Inc. Nohr-McDonald elimination reaction
US5681380A (en) 1995-06-05 1997-10-28 Kimberly-Clark Worldwide, Inc. Ink for ink jet printers
US5773182A (en) 1993-08-05 1998-06-30 Kimberly-Clark Worldwide, Inc. Method of light stabilizing a colorant
US6017471A (en) 1993-08-05 2000-01-25 Kimberly-Clark Worldwide, Inc. Colorants and colorant modifiers
US5645964A (en) 1993-08-05 1997-07-08 Kimberly-Clark Corporation Digital information recording media and method of using same
US5865471A (en) 1993-08-05 1999-02-02 Kimberly-Clark Worldwide, Inc. Photo-erasable data processing forms
US5733693A (en) 1993-08-05 1998-03-31 Kimberly-Clark Worldwide, Inc. Method for improving the readability of data processing forms
US6017661A (en) 1994-11-09 2000-01-25 Kimberly-Clark Corporation Temporary marking using photoerasable colorants
US5721287A (en) 1993-08-05 1998-02-24 Kimberly-Clark Worldwide, Inc. Method of mutating a colorant by irradiation
US5685754A (en) 1994-06-30 1997-11-11 Kimberly-Clark Corporation Method of generating a reactive species and polymer coating applications therefor
US6071979A (en) 1994-06-30 2000-06-06 Kimberly-Clark Worldwide, Inc. Photoreactor composition method of generating a reactive species and applications therefor
US6242057B1 (en) 1994-06-30 2001-06-05 Kimberly-Clark Worldwide, Inc. Photoreactor composition and applications therefor
US6008268A (en) 1994-10-21 1999-12-28 Kimberly-Clark Worldwide, Inc. Photoreactor composition, method of generating a reactive species, and applications therefor
AU6378696A (en) 1995-06-05 1996-12-24 Kimberly-Clark Worldwide, Inc. Novel pre-dyes
US5786132A (en) 1995-06-05 1998-07-28 Kimberly-Clark Corporation Pre-dyes, mutable dye compositions, and methods of developing a color
AU5535296A (en) 1995-06-28 1997-01-30 Kimberly-Clark Worldwide, Inc. Novel colorants and colorant modifiers
IT1277359B1 (it) * 1995-07-26 1997-11-10 Mantegazza A Arti Grafici Documento con mezzi antifalsificazione per impedire la riproducibilita mediante fotocopiatura
DE29513468U1 (de) * 1995-08-22 1997-01-02 Hummel GmbH & Co., 71106 Magstadt Fälschungssicheres Dokument
US5855655A (en) 1996-03-29 1999-01-05 Kimberly-Clark Worldwide, Inc. Colorant stabilizers
US6099628A (en) 1996-03-29 2000-08-08 Kimberly-Clark Worldwide, Inc. Colorant stabilizers
PL321573A1 (en) 1995-11-28 1997-12-08 Kimberly Clark Co Improved stabilising agents for dyes
US5782963A (en) 1996-03-29 1998-07-21 Kimberly-Clark Worldwide, Inc. Colorant stabilizers
US5891229A (en) 1996-03-29 1999-04-06 Kimberly-Clark Worldwide, Inc. Colorant stabilizers
GB2319337B (en) * 1996-11-12 1999-09-29 Probe Fx Patents Limited Compositions and methods for tracing or identifying goods or their theft
US5983065A (en) * 1997-07-23 1999-11-09 Xerox Corporation Method of printing secure documents
US6524379B2 (en) 1997-08-15 2003-02-25 Kimberly-Clark Worldwide, Inc. Colorants, colorant stabilizers, ink compositions, and improved methods of making the same
CA2298615C (fr) 1998-06-03 2009-03-31 Kimberly-Clark Worldwide, Inc. Techniques recourant aux neonanoplastes et aux microemulsions relatives aux encres et a l'impression par jets d'encre
JP2002517523A (ja) 1998-06-03 2002-06-18 キンバリー クラーク ワールドワイド インコーポレイテッド 新規な光開始剤およびその利用
AU5219299A (en) 1998-07-20 2000-02-07 Kimberly-Clark Worldwide, Inc. Improved ink jet ink compositions
PL366326A1 (en) 1998-09-28 2005-01-24 Kimberly-Clark Worldwide, Inc. Novel photoinitiators and applications therefor
US6045656A (en) * 1998-12-21 2000-04-04 Westvaco Corporation Process for making and detecting anti-counterfeit paper
EP1144512B1 (fr) 1999-01-19 2003-04-23 Kimberly-Clark Worldwide, Inc. Nouveaux colorants,stabilisateurs de colorants, compositions d'encre, et leur procedes de preparation ameliores
US6331056B1 (en) 1999-02-25 2001-12-18 Kimberly-Clark Worldwide, Inc. Printing apparatus and applications therefor
DE19914293A1 (de) 1999-03-30 2000-10-05 Bayer Ag Polyurethanlösungen mit aminofunktionellen heterocyclischen Abstoppern
EP1041436A1 (fr) * 1999-04-01 2000-10-04 Bayer Ag Substrats protégés contre le copiage non-authorisé et procédé pour leur fabrication
US6294698B1 (en) 1999-04-16 2001-09-25 Kimberly-Clark Worldwide, Inc. Photoinitiators and applications therefor
US6368395B1 (en) 1999-05-24 2002-04-09 Kimberly-Clark Worldwide, Inc. Subphthalocyanine colorants, ink compositions, and method of making the same
GB0228303D0 (en) 2002-12-04 2003-01-08 Rue De Int Ltd Security device and method
WO2005015215A1 (fr) * 2003-07-30 2005-02-17 Roche Diagnostics Gmbh Nouveaux composes chimioluminescents et leur utilisation
US20050251617A1 (en) * 2004-05-07 2005-11-10 Sinclair Alan W Hybrid non-volatile memory system
US9706084B2 (en) 2014-07-30 2017-07-11 Hewlett-Packard Development Company, L.P. Color mapping

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GB1407065A (en) * 1972-11-30 1975-09-24 Rue Co Ltd Thomas De Production of security documents
AU518156B2 (en) * 1978-08-16 1981-09-17 Toppan Printing Co. Ltd. Image bearing security paper
EP0428828A2 (fr) * 1989-11-21 1991-05-29 Bayropa Jung Gmbh ProcédÀ© pour la détection des copies

Family Cites Families (1)

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GB1562870A (en) * 1977-03-09 1980-03-19 Louyot Comptoir Lyon Alemand Copper alloys

Patent Citations (3)

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Publication number Priority date Publication date Assignee Title
GB1407065A (en) * 1972-11-30 1975-09-24 Rue Co Ltd Thomas De Production of security documents
AU518156B2 (en) * 1978-08-16 1981-09-17 Toppan Printing Co. Ltd. Image bearing security paper
EP0428828A2 (fr) * 1989-11-21 1991-05-29 Bayropa Jung Gmbh ProcédÀ© pour la détection des copies

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7597961B2 (en) 2004-07-13 2009-10-06 Sabic Innovative Plastics Ip B.V. Authenticatable article and method of authenticating

Also Published As

Publication number Publication date
EP0609493B1 (fr) 1999-01-13
JPH06219037A (ja) 1994-08-09
US5425978A (en) 1995-06-20
DE59309304D1 (de) 1999-02-25
DE4236143A1 (de) 1994-04-28

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