EP0972649B1 - Mehrschichtiges Blattmaterial mit Sicherheitskennzeichen und Verfahren zur Herstellung - Google Patents
Mehrschichtiges Blattmaterial mit Sicherheitskennzeichen und Verfahren zur Herstellung Download PDFInfo
- Publication number
- EP0972649B1 EP0972649B1 EP99113215A EP99113215A EP0972649B1 EP 0972649 B1 EP0972649 B1 EP 0972649B1 EP 99113215 A EP99113215 A EP 99113215A EP 99113215 A EP99113215 A EP 99113215A EP 0972649 B1 EP0972649 B1 EP 0972649B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- pressure
- sheet material
- sensitive layer
- layer
- material according
- 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
Links
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 mark, 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 ordinary 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, the 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 wrapping 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 functioning 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 that are usually used in heat and pressure-sensitive systems.
- the carrier material can be paper or plastic film with a basis weight 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 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 doctor blade 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)
- Laminated Bodies (AREA)
- Credit Cards Or The Like (AREA)
- Making Paper Articles (AREA)
- Paper (AREA)
Description
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.
Ein typisches Beispiel ist die Prüfung von Eintrittskarten bei Massenveranstaltungen.
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.
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.
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.
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 % |
|
Claims (8)
- Mehrschichtiges Blattmaterial mit Sicherheitskennzeichen, umfassend ein einziges flächenförmiges Trägermaterial, eine wärmeempfindliche Schicht und mindestens eine druckempfindliche Schicht, dadurch gekennzeichnet, daß die druckempfindliche(n) Schicht(en) auf der der wärmeempfindlichen Schicht abgewandten Seite des Trägermaterials angeordnet ist bzw. sind und mindestens einen Farbbildner und einen Farbentwickler enthält, und wobei die druckempfindliche Schicht bei einer Druckeinwirkung sichtbare Markierungen als Sicherheitskennzeichen ausbildet.
- Blattmaterial nach Anspruch 1, dadurch gekennzeichnet, daß das Sicherheitskennzeichen an einer nicht vorherbestimmbaren Stelle durch Druckeinwirkung erzeugt werden kann.
- Blattmaterial nach Anspruch 1, dadurch gekennzeichnet, daß auf der wärmeempfindlichen Schicht eine Schutzschicht angeordnet ist.
- Blattmaterial nach Anspruch 1, dadurch gekennzeichnet, daß der Farbbildner und/oder der Farbentwickler in Mikrokapseln angeordnet ist.
- Blattmaterial nach Anspruch 1, dadurch gekennzeichnet, daß das Trägermaterial Papier oder Kunststoffolie mit einem Flächengewicht von 40 bis 280 g/m2 ist.
- Blattmaterial nach Anspruch 1, dadurch gekennzeichnet, daß die druckempfindliche Schicht eine Flächenmasse von 2 bis 10 g/m2 aufweist.
- Verwendung eines mehrschichtigen Blattmaterials nach einem oder mehreren der Ansprüche 1 bis 6 zur Herstellung von fälschungssicheren Formularen, Fahrausweisen, Eintrittskarten, Lotteriescheinen, Banknoten, Schecks und Wertpapieren.
- Fälschungssichere Fahrausweise, Eintrittskarten, Lotteriescheine, Banknoten, Schecks oder Wertpapiere, dadurch gekennzeichnet, daß sie aus einem mehrschichtigem Blattmaterial nach einem oder mehreren der Ansprüche 1 bis 6 hergestellt sind.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19832003A DE19832003A1 (de) | 1998-07-16 | 1998-07-16 | Mehrschichtiges Blattmaterial mit Sicherheitskennzeichen und Verfahren zur Herstellung |
DE19832003 | 1998-07-16 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0972649A2 EP0972649A2 (de) | 2000-01-19 |
EP0972649A3 EP0972649A3 (de) | 2001-09-12 |
EP0972649B1 true EP0972649B1 (de) | 2003-10-29 |
Family
ID=7874291
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99113215A Expired - Lifetime EP0972649B1 (de) | 1998-07-16 | 1999-07-08 | Mehrschichtiges Blattmaterial mit Sicherheitskennzeichen und Verfahren zur Herstellung |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0972649B1 (de) |
AT (1) | ATE252984T1 (de) |
DE (2) | DE19832003A1 (de) |
ES (1) | ES2210909T3 (de) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10113286A1 (de) * | 2001-03-16 | 2002-10-02 | Mitsubishi Hitec Paper Flensbu | Wärmeempfindlicher Aufzeichnungsbogen und seine Verwendung |
ITVR20030079A1 (it) * | 2003-06-20 | 2004-12-21 | Cartiere Fedrigoni & C Spa | Carta di sicurezza, particolarmente per etichette |
DE102020106954A1 (de) | 2020-03-13 | 2021-09-16 | Bundesdruckerei Gmbh | Sicherheits- und Wertdokument mit einem elektronischen Element |
Family Cites Families (4)
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 |
DE4331260C2 (de) * | 1993-09-15 | 1995-10-05 | Renker Gmbh & Co Kg | Wärmeempfindliches Aufzeichnungsmaterial mit rückseitiger Erkennungsschicht |
FR2730671B1 (fr) * | 1995-02-17 | 1997-04-04 | Sibille Dalle | Document imprimable comprenant des moyens revelateurs de falsification |
JP3614931B2 (ja) * | 1995-05-10 | 2005-01-26 | 三菱製紙株式会社 | 記録シートおよび偽造検知方法 |
-
1998
- 1998-07-16 DE DE19832003A patent/DE19832003A1/de not_active Withdrawn
-
1999
- 1999-07-08 DE DE59907509T patent/DE59907509D1/de not_active Expired - Fee Related
- 1999-07-08 AT AT99113215T patent/ATE252984T1/de not_active IP Right Cessation
- 1999-07-08 ES ES99113215T patent/ES2210909T3/es not_active Expired - Lifetime
- 1999-07-08 EP EP99113215A patent/EP0972649B1/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE59907509D1 (de) | 2003-12-04 |
DE19832003A1 (de) | 2000-02-03 |
ES2210909T3 (es) | 2004-07-01 |
EP0972649A3 (de) | 2001-09-12 |
EP0972649A2 (de) | 2000-01-19 |
ATE252984T1 (de) | 2003-11-15 |
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