EP0972649A2 - Laminated sheet with security marking, and method for making such a sheet - Google Patents

Laminated sheet with security marking, and method for making such a sheet Download PDF

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Publication number
EP0972649A2
EP0972649A2 EP99113215A EP99113215A EP0972649A2 EP 0972649 A2 EP0972649 A2 EP 0972649A2 EP 99113215 A EP99113215 A EP 99113215A EP 99113215 A EP99113215 A EP 99113215A EP 0972649 A2 EP0972649 A2 EP 0972649A2
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EP
European Patent Office
Prior art keywords
sensitive layer
pressure
sheet material
heat
sheet
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
EP99113215A
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German (de)
French (fr)
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EP0972649B1 (en
EP0972649A3 (en
Inventor
Manfred Dr. Spangenberg
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.)
Kanzan Spezialpapiere GmbH
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Kanzan Spezialpapiere GmbH
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Publication of EP0972649A2 publication Critical patent/EP0972649A2/en
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Publication of EP0972649B1 publication Critical patent/EP0972649B1/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M5/00—Duplicating or marking methods; Sheet materials for use therein
    • B41M5/124—Duplicating or marking methods; Sheet materials for use therein using pressure to make a masked colour visible, e.g. to make a coloured support visible, to create an opaque or transparent pattern, or to form colour by uniting colour-forming components
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M5/00—Duplicating or marking methods; Sheet materials for use therein
    • B41M5/26—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used
    • B41M5/30—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used using chemical colour formers

Definitions

  • the invention relates to a multilayer sheet material with security signs, especially for tamper-proof Execution of forms, tickets, tickets, Lottery tickets, banknotes, checks and securities.
  • DE 43 31 260 discloses a heat-sensitive recording material, on the back of which there are either electron-accepting color developers or electron-donating color formers. For identification purposes, however, a separate test liquid containing the other component must be used. From DE-OS 35 04 730 a heat-sensitive image transfer material is known which contains both a heat and a pressure-sensitive layer on the back in order to be able to carry out image transfers to a normal writing paper. The coating is accordingly constructed in a complex manner and would not be considered as a security feature for mass documents for cost reasons.
  • the object of the invention is a multilayer sheet material with safety mark according to the generic term of To create claim 1, in which the safety mark is easy and easy to recognize and one Identification of the authenticity of one from the leaf material produced document allowed in a short time. The manufacturing effort should be reduced.
  • This task is done with a multi-layer sheet material with security indicator according to the preamble of the claim 1 and in a method according to the preamble of Claim 8 each solved by their characteristic features.
  • the invention is that a multilayer sheet material with safety mark, which is a flat Has carrier material and a heat-sensitive layer, with at least one pressure sensitive back Layer is provided, which is under pressure forms visible markings.
  • the pressure sensitive layer is preferably on the side of the carrier material facing away from the heat-sensitive layer arranged, making this for further refinements remains free, for example for offset printing.
  • the heat-sensitive layer can also be provided with a protective layer be provided.
  • a pressure-sensitive layer is preferably used, which belongs to the type of layers, the color formers and color developers contained in a single layer ("self contained layers").
  • the components are e.g. through microencapsulation at least one of the components from each other Cut. By creating a permeability when exposed to pressure can the components under formation of Color effects react with each other.
  • suitable shell materials and the methods of Microencapsulation is known.
  • the microcapsules which contain dye precursors (dye formers) dissolved in oil, can be formed from urea or melamine-formaldehyde condensates, polyurea or gelatin.
  • the color precursors or color formers are the electron-donating triarylmethane compounds, xanthene compounds, thiazine compounds, spiropyran compounds or fluoranes, which are known from the heat and pressure-sensitive systems and act as Lewis bases.
  • the electron-accepting color developers acting as Lewis acids are the acidic clays, such as bentonite, montmorillonite, attapulgite, or organic compounds, such as phenolic resins or zinc salicylate, which are also known from the heat and pressure-sensitive systems.
  • Binders are the oxidized starches, modified starches, styrene-butadiene copolymers, styrene-acrylic acid copolymers, polyvinyl acetates, polyvinyl alcohols, hydroxyethyl celluloses or carboxymethyl celluloses which are normally used in heat and pressure-sensitive systems.
  • the carrier material can be paper or plastic film with a mass per unit area of 40 to 280 g / m 2 .
  • the pressure-sensitive layer can, for example, have a basis weight of 2 to 10 g / m 2 and can thus be particularly thin.
  • the sheet material according to the invention with security identification is applied according to the invention in a simple manner to a prefabricated composite consisting of a carrier material and a heat-sensitive layer on the carrier material from a separately prepared coating slip, for example by means of a doctor blade, roller, blade or air knife coating. Thereby the thermotechnology remains unaffected.
  • the layer can also be applied by spraying or printing, or can also be produced separately and adhesively bonded to the carrier material using methods known to those skilled in the art.
  • the sheet material can not only be or be printed on the heat-sensitive layer, but also on the pressure-sensitive layer applied on the back by one or more methods of the known art of printing.
  • a coating slip is produced from the following components with the specified composition by mixing: Microcapsules made of melamine resin 33 to 37% Sour clay as a color developer 30 to 35% Cellulose fibers as spacers 8 to 12% Styrene butadiene latex 10 to 12% Strength 3 to 7% Polyvinyl alcohol 2 to 5% Calcium carbonate 2 to 5% 100%
  • the solids content of the coating slip thus prepared is adjusted to 30 to 35% with water.
  • the coating slip is then applied with a squeegee to the side of a sheet material formed from this layer and a paper as the carrier material, facing away from the heat-sensitive layer.
  • the coating slip is applied with a coat weight of essentially 6 g / m 2 .
  • the carrier material has a mass per unit area of essentially 150 g / m 2 .

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Color Printing (AREA)
  • Credit Cards Or The Like (AREA)
  • Laminated Bodies (AREA)
  • Paper (AREA)
  • Making Paper Articles (AREA)

Abstract

Multilayer sheet material with security marks comprises a sheet of base material and a heat-sensitive layer and has at least one pressure-sensitive layer which produces visible markings when subjected to pressure. An Independent claim is also included for a process for the production of this material, in which the base material is first provided with a heat-sensitive layer and then coated on the other side with a pressure-sensitive layer from a separately produced coating material.

Description

Die Erfindung betrifft ein mehrschichtiges Blattmaterial mit Sicherheitskennzeichen, insbesondere zur fälschungssicheren Ausführung von Formularen, Fahrausweisen, Eintrittskarten, Lotteriescheinen, Banknoten, Schecks und Wertpapieren.The invention relates to a multilayer sheet material with security signs, especially for tamper-proof Execution of forms, tickets, tickets, Lottery tickets, banknotes, checks and securities.

Um Fälschungen von Formularen, Fahrausweisen, Eintrittskarten, Lotteriescheinen, Banknoten, Schecks, Wertpapieren und dergleichen zu erschweren und weitestgehend zu verhindern, werden diese mit Sicherheitskennzeichen wie Wasserzeichen, Prägungen, Textil- oder Metalleinlagen, Hologramm-Eindrücken, fluoreszierenden Komponenten oder aufgedruckten Markierungen und Motiven versehen, die in die entsprechenden Blattmaterialien integriert oder nachträglich auf diese appliziert werden.To counterfeit forms, tickets, tickets, Lottery tickets, banknotes, checks, securities and to make such a thing more difficult and to prevent it as far as possible, are these with security signs such as watermarks, Embossing, textile or metal inlays, hologram impressions, fluorescent components or printed Markings and motifs provided in the corresponding Sheet materials integrated or subsequently on them be applied.

Diese Systeme haben sich in ihrer Anwendung durchaus bewährt, insbesondere dann, wenn verschiedene Kennzeichen kombiniert werden, wie z.B. bei Geldscheinen. Die aufgeführten Kennzeichen finden jedoch nur eine begrenzte Anwendung in dem immer bedeutender werdenden Markt der Legitimations- oder Identifikationspapiere, wie z.B. Eintrittskarten, Fahrscheine oder auch Preisetiketten.These systems have proven themselves in their application, especially if different characteristics can be combined, e.g. for banknotes. However, the characteristics listed are limited Application in the increasingly important market the identification or identification documents, e.g. Tickets, tickets or price labels.

Vor allem dann, wenn solche Dokumente in hoher Stückzahl bereitgestellt werden müssen, sind schon aus Kostengründen einigen dieser Systeme Grenzen gesetzt. Erst recht aber dann, wenn Prüfern innerhalb kurzer Zeit eine hohe Anzahl solcher Dokumente zur Prüfung vorgelegt werden, ist die Anwendung von Sicherheitskennzeichen, die beispielsweise eine genaue Betrachtung erfordern, nicht praktikabel.
Ein typisches Beispiel ist die Prüfung von Eintrittskarten bei Massenveranstaltungen. Especially when such documents have to be made available in large quantities, some of these systems are limited for cost reasons alone. But even more so if a large number of such documents are submitted to examiners within a short period of time, the use of security indicators, which, for example, require careful consideration, is not practical.
A typical example is the testing of tickets for mass events.

Hier wäre die prüfende Person überfordert, wenn zur Identifizierung der Echtheit eine genaue Betrachtung im Durchlicht, im Licht einer UV Lampe oder ähnlichen Geräten zur physikalischen oder chemischen Identifikation erforderlich wäre, wie das bei der Verwendung von Wasserzeichen, Markierungen oder Prägungen, bei fluoreszierenden Papieren oder -bestandteilen der Fall ist. Andere Sicherheitskennzeichen, wie Metallfäden oder Hologramme, verursachen hohe Herstellungskosten und sind für die Verwendung in Massendokumenten aus diesem Grund von Nachteil.Here the examiner would be overwhelmed if for identification the genuineness an exact view in transmitted light, in the light of a UV lamp or similar devices physical or chemical identification required would be like using watermarks, markers or embossing, for fluorescent papers or components is the case. Other security signs, such as metal threads or holograms, cause high manufacturing costs and are for use in bulk documents disadvantageous for this reason.

Aus DE 43 31 260 ist ein wärmeempfindliches Aufzeichnungsmaterial bekannt, auf dessen Rückseite entweder elektronenaufnehmende Farbentwickler oder elektronenabgebende Farbbildner vorhanden sind.
Zur Identifizierung muß hier jedoch mit einer separaten Testflüssigkeit, die die jeweils andere Komponente enthält, gearbeitet werden.
Aus DE-OS 35 04 730 ist ein wärmeempfindliches Bildübertragungsmaterial bekannt, das rückseitig sowohl eine wärmeals auch eine druckempfindliche Schicht enthält, um Bildübertragungen auf ein gewöhnliches Schreibpapier vornehmen zu können. Die Beschichtung ist dementsprechend aufwendig konstruiert und käme als Sicherheitsmerkmal für Massendokumente aus Kostengründen nicht in Betracht.DE 43 31 260 discloses a heat-sensitive recording material, on the back of which there are either electron-accepting color developers or electron-donating color formers.
For identification purposes, however, a separate test liquid containing the other component must be used.
From DE-OS 35 04 730 a heat-sensitive image transfer material is known which contains both a heat and a pressure-sensitive layer on the back in order to be able to carry out image transfers to a normal writing paper. The coating is accordingly constructed in a complex manner and would not be considered as a security feature for mass documents for cost reasons.

Aufgabe der Erfindung ist es, ein mehrschichtiges Blattmaterial mit Sicherheitskennzeichen nach dem Oberbegriff des Anspruchs 1 zu schaffen, bei dem das Sicherheitskennzeichen leicht und auf einfache Weise zu erkennen ist und eine Identifizierung der Echtheit eines aus dem Blattmaterial hergestellten Dokumentes in kurzer Zeit gestattet. Der Herstellungsaufwand soll reduziert werden.The object of the invention is a multilayer sheet material with safety mark according to the generic term of To create claim 1, in which the safety mark is easy and easy to recognize and one Identification of the authenticity of one from the leaf material produced document allowed in a short time. The manufacturing effort should be reduced.

Diese Aufgabe wird bei einem mehrschichtigen Blattmaterial mit Sicherheitskennzeichen nach dem Oberbegriff des Anspruchs 1 und bei einem Verfahren nach dem Oberbegriff des Anspruchs 8 jeweils durch deren kennzeichnende Merkmale gelöst.This task is done with a multi-layer sheet material with security indicator according to the preamble of the claim 1 and in a method according to the preamble of Claim 8 each solved by their characteristic features.

Die Erfindung besteht darin, daß ein mehrschichtiges Blattmaterial mit Sicherheitskennzeichen, das ein flächenförmiges Trägermaterial und eine wärmeempfindliche Schicht aufweist, mit mindestens einer rückseitigen, druckempfindlichen Schicht versehen ist, die bei einer Druckeinwirkung sichtbare Markierungen ausbildet.The invention is that a multilayer sheet material with safety mark, which is a flat Has carrier material and a heat-sensitive layer, with at least one pressure sensitive back Layer is provided, which is under pressure forms visible markings.

Die Erzeugung dieser farbigen Markierungen kann durch alle denkbaren druckerzeugenden Manipulationen erfolgen. So genügt beispielsweise ein Knick, ein Fingerdruck oder das Kratzen mit einem Fingernagel, um die Farbmarkierung sichtbar werden zu lassen.Anyone can create these colored markings conceivable pressure-generating manipulations take place. So that's enough for example a kink, finger pressure or that Scratch with a fingernail to make the color mark visible to be let.

Eine Fälschung durch Kopieren oder Bedrucken des Ausgangsmaterials ist ausgeschlossen, da das Sicherheitskennzeichen jeweils an der Stelle der Druckeinwirkung erzeugt ("in situ") und sichtbar wird. Diese Stelle ist nicht vorbestimmbar.Counterfeiting by copying or printing on the source material is excluded because the security indicator generated at the point of pressure ("in situ") and becomes visible. This position cannot be predetermined.

Potentielle Fälscher können auch nicht erkennen, welche Kennzeichen sie nachahmen müssen, um das aus dem Blattmaterial gefertigte Dokument echt erscheinen zu lassen, zumal das Sicherheitskennzeichen schon bei der Herstellung, z.B. in der Papierfabrik, impliziert wird.Potential counterfeiters also cannot identify which ones Marks they have to imitate to get that from the sheet material make the document appear real, especially the safety label already during manufacture, e.g. in the paper mill.

Die druckempfindliche Schicht ist bevorzugt auf der der wärmeempfindlichen Schicht abgewandten Seite des Trägermaterials angeordnet, wodurch diese für weitere Ausgestaltungen frei bleibt, beispielsweise für eine Offsetbedruckung. Auch kann die wärmeempfindliche Schicht mit einer Schutzschicht versehen sein. The pressure sensitive layer is preferably on the side of the carrier material facing away from the heat-sensitive layer arranged, making this for further refinements remains free, for example for offset printing. The heat-sensitive layer can also be provided with a protective layer be provided.

Bevorzugt wird eine druckempfindliche Schicht verwendet, die zum Typ der Schichten gehört, die Farbbildner und Farbentwickler in einer einzigen Schicht enthalten ("self contained-Schichten"). Die Komponenten sind z.B. durch Mikroverkapselung mindestens einer der Komponenten voneinander getrennt. Durch Entstehen einer Durchlässigkeit bei Druckeinwirkung können die Komponenten unter Ausbildung von Farbeffekten miteinander reagieren. Die für die Mikroverkapselung geeigneten Hüllmaterialien und die Methoden der Mikroverkapselung sind bekannt.A pressure-sensitive layer is preferably used, which belongs to the type of layers, the color formers and color developers contained in a single layer ("self contained layers"). The components are e.g. through microencapsulation at least one of the components from each other Cut. By creating a permeability when exposed to pressure can the components under formation of Color effects react with each other. The one for microencapsulation suitable shell materials and the methods of Microencapsulation is known.

Die Mikrokapseln, die in Öl gelösten Farbstoffvorläufer (Farbstoffbildner) enthalten, können aus Harnstoff- oder Melamin-Formaldehyd-Kondensaten, Polyharnstoff oder Gelatine gebildet sein.
Die Farbvorläufer oder Farbbildner sind die aus den wärme- und druckempfindlichen Systemen bekannten elektronenabgebenden, als Lewis-Basen fungierenden Triarylmethanverbindungen, Xanthenverbindungen, Thiazinverbindungen, Spiropyranverbindungen oder Fluorane.
Die elektronenaufnehmenden, als Lewis-Säuren fungierenden Farbentwickler sind die ebenfalls aus den wärme- und druckempfindlichen Systemen bekannten sauren Clays wie Bentonit, Montmorillonit, Attapulgit oder organische Verbindungen wie Phenolharze oder Zinksalicylat.
Als Abstandhalter werden Stärkekörner oder Cellulosefasern benutzt.
Bindemittel sind die üblicherweise in wärme- und druckempfindlichen Systeme zur Anwendung kommenden oxydierten Stärken, modifizierte Stärken, Styrol-Butadien-Copolymere, Styrol-Acrylsäure-Copolymere, Polyvinylacetate, Polyvinylalkohole, Hydroxyethylcellulosen oder Carboxymethylcellulosen.The microcapsules, which contain dye precursors (dye formers) dissolved in oil, can be formed from urea or melamine-formaldehyde condensates, polyurea or gelatin.
The color precursors or color formers are the electron-donating triarylmethane compounds, xanthene compounds, thiazine compounds, spiropyran compounds or fluoranes, which are known from the heat and pressure-sensitive systems and act as Lewis bases.
The electron-accepting color developers acting as Lewis acids are the acidic clays, such as bentonite, montmorillonite, attapulgite, or organic compounds, such as phenolic resins or zinc salicylate, which are also known from the heat and pressure-sensitive systems.
Starch grains or cellulose fibers are used as spacers.
Binders are the oxidized starches, modified starches, styrene-butadiene copolymers, styrene-acrylic acid copolymers, polyvinyl acetates, polyvinyl alcohols, hydroxyethyl celluloses or carboxymethyl celluloses which are normally used in heat and pressure-sensitive systems.

Das Trägermaterial kann Papier oder Kunststofffolie mit einer Flächenmasse von 40 bis 280 g/m2 sein. Die druckempfindliche Schicht kann beispielsweise eine Flächenmasse von 2 bis 10 g/m2 aufweisen und so besonders dünn sein.
Das erfindungsgemäße Blattmaterial mit Sicherheitskennzeichen wird erfindungsgemäß auf einfache Weise auf einen vorgefertigten Verbund aus einem Trägermaterial und einer wärmeempfindlichen Schicht auf das Trägermaterial aus einer separat hergestellten Streichmasse aufgetragen, beispielsweise durch eine Rakel-, Walzen-, Klingen- oder Luftmesserbeschichtung. Dadurch bleibt die Thermotechnologie unbeeinträchtigt.
Die Schicht kann auch durch Aufsprühen oder Aufdrucken aufgebracht werden, oder auch separat erzeugt und mit dem Fachmann bekannten Verfahren adhäsiv mit dem Trägermaterial verbunden werden.
Das Blattmaterial kann nicht nur auf der wärmeempfindlichen Schicht, sondern auch auf der rückseitig aufgebrachten druckempfindlichen Schicht nach einem oder mehreren Verfahren der bekannten Druckkunst bedruckt sein oder werden.The carrier material can be paper or plastic film with a mass per unit area of 40 to 280 g / m 2 . The pressure-sensitive layer can, for example, have a basis weight of 2 to 10 g / m 2 and can thus be particularly thin.
The sheet material according to the invention with security identification is applied according to the invention in a simple manner to a prefabricated composite consisting of a carrier material and a heat-sensitive layer on the carrier material from a separately prepared coating slip, for example by means of a doctor blade, roller, blade or air knife coating. Thereby the thermotechnology remains unaffected.
The layer can also be applied by spraying or printing, or can also be produced separately and adhesively bonded to the carrier material using methods known to those skilled in the art.
The sheet material can not only be or be printed on the heat-sensitive layer, but also on the pressure-sensitive layer applied on the back by one or more methods of the known art of printing.

Die Herstellung des Blattmaterials ist wenig aufwendig und deshalb für Massendokumente geeignet.The production of the sheet material is not very expensive and therefore suitable for mass documents.

Die Erfindung wird nachstehend an einem Ausführungsbeispiel erläutert.The invention is illustrated below using an exemplary embodiment explained.

Es wird eine Streichmasse aus folgenden Komponenten mit der angegebenen Zusammensetzung durch Mischen hergestellt: Mikrokapseln aus Melaminharz 33 bis 37 % Saurer Clay als Farbentwickler 30 bis 35 % Cellulosefasern als Abstandhalter 8 bis 12 % Styrolbutadienlatex 10 bis 12 % Stärke 3 bis 7 % Polyvinylalkohol 2 bis 5 % Calciumcarbonat 2 bis 5 % 100 % A coating slip is produced from the following components with the specified composition by mixing: Microcapsules made of melamine resin 33 to 37% Sour clay as a color developer 30 to 35% Cellulose fibers as spacers 8 to 12% Styrene butadiene latex 10 to 12% Strength 3 to 7% Polyvinyl alcohol 2 to 5% Calcium carbonate 2 to 5% 100%

Der Feststoffgehalt der so hergestellten Streichmasse wird mit Wasser auf 30 bis 35 % eingestellt.The solids content of the coating slip thus prepared is adjusted to 30 to 35% with water.

Anschließend wird die Streichmasse mit einer Rakel auf die der wärmeempfindlichen Schicht abgewandte Seite eines aus dieser Schicht und einem Papier als Trägermaterial gebildeten Blattmaterials aufgetragen. Die Streichmasse wird mit einer Strichmasse von im wesentlichen 6 g/m2 aufgetragen. Das Trägermaterial weist eine Flächenmasse von im wesentlichen 150 g/m2 auf.The coating slip is then applied with a squeegee to the side of a sheet material formed from this layer and a paper as the carrier material, facing away from the heat-sensitive layer. The coating slip is applied with a coat weight of essentially 6 g / m 2 . The carrier material has a mass per unit area of essentially 150 g / m 2 .

Claims (9)

Mehrschichtiges Blattmaterial mit Sicherheitskennzeichen, mit einem flächenförmigen Trägermaterial und einer wärmeempfindlichen Schicht, dadurch gekennzeichnet, daß mindestens eine druckempfindliche Schicht vorgesehen ist, die bei einer Druckeinwirkung sichtbare Markierungen ausbildet.Multi-layer sheet material with security identification, with a sheet-like carrier material and a heat-sensitive layer, characterized in that at least one pressure-sensitive layer is provided which forms visible markings when exposed to pressure. Blattmaterial nach Anspruch 1, dadurch gekennzeichnet, daß die druckempfindliche Schicht auf der der wärmeempfindlichen Schicht abgewandten Seite des Trägermaterials angeordnet ist.Sheet material according to Claim 1, characterized in that the pressure-sensitive layer is arranged on that side of the carrier material which is remote from the heat-sensitive layer. Blattmaterial nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß auf der wärmeempfindlichen Schicht eine Schutzschicht angeordnet ist.Sheet material according to claim 1 or 2, characterized in that a protective layer is arranged on the heat-sensitive layer. Blattmaterial nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die druckempfindliche Schicht mindestens einen Farbbildner und einen Farbentwickler enthält.Sheet material according to claim 1 or 2, characterized in that the pressure-sensitive layer contains at least one color former and one color developer. Blattmaterial nach Anspruch 4, dadurch gekennzeichnet, daß der Farbbildner und/oder der Farbentwickler in Mikrokapseln angeordnet ist.Sheet material according to claim 4, characterized in that the color former and / or the color developer is arranged in microcapsules. Blattmaterial nach Anspruch 1, dadurch gekennzeichnet, daß das Trägermaterial Papier oder Kunststofffolie mit einem Flächengewicht von 40 bis 280 g/m2 ist.Sheet material according to claim 1, characterized in that the carrier material is paper or plastic film with a basis weight of 40 to 280 g / m 2 . Blattmaterial nach Anspruch 1, 2 oder 4, dadurch gekennzeichnet, daß die druckempfindliche Schicht eine Flächenmasse von 2 bis 10 g/m2 aufweist.Sheet material according to claim 1, 2 or 4, characterized in that the pressure-sensitive layer has a basis weight of 2 to 10 g / m 2 . Verfahren zur Herstellung eines mehrschichtigen Blattmaterials mit Sicherheitsmerkmal, mit einem flächenförmigen Trägermaterial, einer an diesem angeordneten wärmeempfindlichen und einer druckempfindlichen Schicht, dadurch gekennzeichnet, daß die druckempfindliche Schicht nach dem Aufbringen der wärmeempfindlichen Schicht auf die dieser abgewandte Seite aus einer separat hergestellten Streichmasse auf das Trägermaterial aufgebracht wird.A process for the production of a multilayer sheet material with a security feature, with a sheet-like carrier material, a heat-sensitive and a pressure-sensitive layer arranged thereon, characterized in that the pressure-sensitive layer, after the heat-sensitive layer has been applied to the side facing away from it, from a separately prepared coating slip on the carrier material is applied. Verfahren nach Anspruch 8, dadurch gekennzeichnet, daß die Streichmasse durch Rakel-, Walzen-, Klingen- oder Luftmesserbeschichtung aufgebracht wird.A method according to claim 8, characterized in that the coating slip is applied by knife, roller, blade or air knife coating.
EP99113215A 1998-07-16 1999-07-08 Laminated sheet with security marking, and method for making such a sheet Expired - Lifetime EP0972649B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19832003 1998-07-16
DE19832003A DE19832003A1 (en) 1998-07-16 1998-07-16 Multi-layer sheet material with safety marks and method of manufacture

Publications (3)

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EP0972649A2 true EP0972649A2 (en) 2000-01-19
EP0972649A3 EP0972649A3 (en) 2001-09-12
EP0972649B1 EP0972649B1 (en) 2003-10-29

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EP99113215A Expired - Lifetime EP0972649B1 (en) 1998-07-16 1999-07-08 Laminated sheet with security marking, and method for making such a sheet

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EP (1) EP0972649B1 (en)
AT (1) ATE252984T1 (en)
DE (2) DE19832003A1 (en)
ES (1) ES2210909T3 (en)

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WO2004113612A1 (en) * 2003-06-20 2004-12-29 Cartiere Fedrigoni E C. S.P.A. Security paper, particularly for labels

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10113286A1 (en) * 2001-03-16 2002-10-02 Mitsubishi Hitec Paper Flensbu Heat sensitive recording sheet and its use
DE102020106954A1 (en) 2020-03-13 2021-09-16 Bundesdruckerei Gmbh Security and value document with an electronic element

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US5395138A (en) * 1993-06-14 1995-03-07 Wallace Computer Services, Inc. Security document verification system with pressure-rupturable microcapsules
EP0642928A1 (en) * 1993-09-15 1995-03-15 RENKER GmbH & Co. KG Thermosensitive recording material
EP0727316A1 (en) * 1995-02-17 1996-08-21 Sibille Dalle Printable document comprising means for revealing forgery
JPH08300810A (en) * 1995-05-10 1996-11-19 Mitsubishi Paper Mills Ltd Recording sheet and detection of forgery

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Publication number Priority date Publication date Assignee Title
US5395138A (en) * 1993-06-14 1995-03-07 Wallace Computer Services, Inc. Security document verification system with pressure-rupturable microcapsules
EP0642928A1 (en) * 1993-09-15 1995-03-15 RENKER GmbH & Co. KG Thermosensitive recording material
EP0727316A1 (en) * 1995-02-17 1996-08-21 Sibille Dalle Printable document comprising means for revealing forgery
JPH08300810A (en) * 1995-05-10 1996-11-19 Mitsubishi Paper Mills Ltd Recording sheet and detection of forgery

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WO2004113612A1 (en) * 2003-06-20 2004-12-29 Cartiere Fedrigoni E C. S.P.A. Security paper, particularly for labels

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EP0972649B1 (en) 2003-10-29
DE19832003A1 (en) 2000-02-03
ATE252984T1 (en) 2003-11-15
DE59907509D1 (en) 2003-12-04
ES2210909T3 (en) 2004-07-01
EP0972649A3 (en) 2001-09-12

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