EP1746208A1 - Process for preparing a partially metallized substrate. - Google Patents

Process for preparing a partially metallized substrate. Download PDF

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Publication number
EP1746208A1
EP1746208A1 EP05015612A EP05015612A EP1746208A1 EP 1746208 A1 EP1746208 A1 EP 1746208A1 EP 05015612 A EP05015612 A EP 05015612A EP 05015612 A EP05015612 A EP 05015612A EP 1746208 A1 EP1746208 A1 EP 1746208A1
Authority
EP
European Patent Office
Prior art keywords
carrier substrate
ink
metallization
packaging
metal
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.)
Withdrawn
Application number
EP05015612A
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German (de)
French (fr)
Inventor
Stephan Trassl
Peter Reich
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.)
Constantia Pirk and Co KG GmbH
Original Assignee
Hueck Folien GmbH and Co KG
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 Hueck Folien GmbH and Co KG filed Critical Hueck Folien GmbH and Co KG
Priority to EP05015612A priority Critical patent/EP1746208A1/en
Priority to US11/482,907 priority patent/US20070044912A1/en
Publication of EP1746208A1 publication Critical patent/EP1746208A1/en
Withdrawn legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
    • D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
    • D21H21/40—Agents facilitating proof of genuineness or preventing fraudulent alteration, e.g. for security paper
    • D21H21/42—Ribbons or strips
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
    • D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
    • D21H21/40—Agents facilitating proof of genuineness or preventing fraudulent alteration, e.g. for security paper
    • D21H21/44—Latent security elements, i.e. detectable or becoming apparent only by use of special verification or tampering devices or methods
    • D21H21/48—Elements suited for physical verification, e.g. by irradiation
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
    • D21H27/10—Packing paper
    • 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
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/11—Methods of delaminating, per se; i.e., separating at bonding face
    • Y10T156/1121—Using vibration during delaminating
    • 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
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/11—Methods of delaminating, per se; i.e., separating at bonding face
    • Y10T156/1153—Temperature change for delamination [e.g., heating during delaminating, etc.]

Definitions

  • the invention relates to a method for producing a partially metallized carrier substrate.
  • Partially metallized carrier substrates are optionally used after appropriate assembly as security elements in particular in value documents, data carriers, packaging and the like but also as decorative elements.
  • a method for the production of a selectively metallized film wherein a solvent-soluble paint application is applied to a carrier substrate in a first step on one or both sides of the carrier substrate, in a second step this layer by means of an inline plasma, corona or flame process is treated and in a third step, a layer of a material to be structured is applied, which layer may consist of metals, metal compounds, alloys or insulators, whereupon in a fourth step, the paint application by means of a solvent, optionally combined with a mechanical action removed becomes.
  • An individualization of the partial metallization is not provided and can only take place in a further method step, for example by means of a laser treatment, by means of which the metallization is removed in a defined manner.
  • the object of the invention was to provide a method for producing a partially metallized carrier substrate, in which a simple individualized partial metallization can be produced directly.
  • Carrier substrates are, for example, carrier films, preferably flexible transparent plastic films, for example made of PI, PP, MOPP, PE, PPS, PEEK, PEK, PEI, PAEK, LCP, PEN, PBT, PET, PA, PC, COC, POM, ABS, PVC in question.
  • the carrier films preferably have a thickness of 5 to 700 .mu.m, preferably 5 to 200 .mu.m, particularly preferably 5 to 50 .mu.m.
  • metal foils for example Al, Cu, Sn, Ni, Fe or stainless steel foils having a thickness of 5-200 ⁇ m, preferably 10 to 80 ⁇ m, particularly preferably 20-50 ⁇ m, may also serve as the carrier substrate.
  • the films can also be surface-treated, coated or laminated, for example, with plastics or painted.
  • carrier substrates also paper or composites with paper, for example, composites with plastics with a grammage 20-500 g / m 2, preferably 40-200 g / m 2. be used.
  • woven or nonwovens such as continuous fiber webs, staple fiber webs and the like, which may optionally be needled and / or calendered, can be used as the carrier substrates.
  • fabrics or webs of plastics such as PP, PET, PA, PPS and the like, but it can also be woven or nonwovens made of natural, optionally treated fibers, such as viscose fibers are used.
  • the nonwovens or fabrics used have a weight per unit area of about 20 g / m 2 to 500 g / m 2 . If necessary, the nonwovens or fabrics must be surface-treated.
  • a fusible digital printing ink in the form of the desired later recesses in the metallic layer is then partially applied to the carrier substrate by means of a digital printing method.
  • a transparent ink can be used, thereby avoiding that possibly residues of the ink are visible at the edge of the recesses.
  • a digital ink is used which melts at about 90 to 160 ° C, preferably 100 - 120 ° C.
  • the application of the ink can be made individualized.
  • the application of the digital ink can be individualized and applied in the form of in the form of patterns, lines, geometric figures, characters, letters, numbers, a grid and the like.
  • This layer consists of a metal, a metal compound, or an alloy.
  • a metal layer layers of Al, Cu, Fe, Ag, Au, Cr, Ni, Zn and the like are suitable.
  • suitable metal compounds are oxides or sulfides of metals, in particular TiO 2 , Cr oxides, ZnS, ITO, ATO, FTO, ZnO, Al 2 O 3 or silicon oxides.
  • Suitable alloys are, for example, Cu-Al alloys, Cu-Zn alloys and the like.
  • This functional layer may be applied by known methods such as sputtering, sputtering, printing (gravure, flexo, screen, digital printing and the like), spraying, electroplating and the like.
  • the thickness of the functional layer is 0.001 to 50 ⁇ m, preferably 0.1 to 20 ⁇ m.
  • the metallized carrier substrate is then heated so that the applied digital ink melts.
  • the heating may be carried out by passing over a heatable roll, passing through a drying tunnel, heating by means of an IR radiator and the like.
  • liquid digital ink together with the overlying in these areas metallic layer by mechanical Exposure, for example, with a stripping roller, a fabric and the like or removed by ultrasonic treatment.
  • further functional layers with optical, optically active, magnetic and / or electrically conductive properties can also be applied to the carrier substrates or be present thereon before the individualized partial metallization.
  • the carrier substrates produced according to the invention if appropriate after appropriate fabrication (for example into threads, strips, patches or other formats), therefore, serve as security features in data carriers, in particular value documents such as identity cards, cards, banknotes or labels, seals and the like, but also in packaging material for sensitive goods such as pharmaceuticals, cosmetics, data carriers, electronic components and the like.

Abstract

A method for the production of a metallised carrier substrate (MCS) involves (a) partly coating a substrate with a fusible printing ink by using a digital printing process, (b) metallising the entire surface, (c) heating the substrate to melt the ink and (d) removing the fluid ink together with the overlying metal layer by mechanical or ultrasound treatment. Independent claims are included for (1) security elements made from MCS obtained by this method (2) packaging elements or packaging film made from MCS obtained by this method .

Description

Die Erfindung betrifft ein Verfahren zur Herstellung eines partiell metallisierten Trägersubstrats.The invention relates to a method for producing a partially metallized carrier substrate.

Partiell metallisierte Trägersubstrate werden gegebenenfalls nach entsprechender Konfektionierung als Sicherheitselemente insbesondere in Wertdokumenten, Datenträgern, Verpackungen und dergleichen aber auch als dekorative Elemente verwendet.Partially metallized carrier substrates are optionally used after appropriate assembly as security elements in particular in value documents, data carriers, packaging and the like but also as decorative elements.

Aus der EP 1 291 463 ist ein Verfahren zur Herstellung einer selektiv metallisierten Folie bekannt, wobei auf ein Trägersubstrat in einem ersten Schritt auf einer oder beiden Seiten des Trägersubstrats ein in einem Lösungsmittel löslicher Farbauftrag aufgebracht wird, in einem zweiten Schritt diese Schicht mittels eines Inline-Plasma-, Corona- oder Flammprozesses behandelt wird und in einem dritten Schritt eine Schicht eines zu strukturierenden Materials aufgebracht wird, wobei diese Schicht aus Metallen, Metallverbindungen, Legierungen oder Isolatoren bestehen kann, worauf in einem vierten Schritt der Farbauftrag mittels eines Lösungsmittels, gegebenenfalls kombiniert mit einer mechanischen Einwirkung entfernt wird.From the EP 1 291 463 a method for the production of a selectively metallized film is known, wherein a solvent-soluble paint application is applied to a carrier substrate in a first step on one or both sides of the carrier substrate, in a second step this layer by means of an inline plasma, corona or flame process is treated and in a third step, a layer of a material to be structured is applied, which layer may consist of metals, metal compounds, alloys or insulators, whereupon in a fourth step, the paint application by means of a solvent, optionally combined with a mechanical action removed becomes.

Aus der WO 99/13157 sind Sicherheitsfolien für Wertpapiere bekannt, bei denen auf einer transluzenten Folie eine metallische Beschichtung aufgebracht wird, die in der fertigen Folie nicht vollflächig ist, sondern Aussparungen aufweist, die im Durchlicht klar erkennbar sein sollen. Die Herstellung dieser Folien erfolgt dadurch, dass eine Trägerfolie mit einer hochpigmentierten Druckfarbe bedruckt wird, wobei der Farbauftrag nicht vollflächig erfolgt, die Druckfarbe unter Bildung eines porigen Farbauftrags getrocknet wird, anschließend eine metallische Deckschicht aufgebracht wird und in einem weiteren Schritt die hochpigmentierte Druckfarbe durch Auswaschen mit einem Lösungsmittel, gegebenenfalls auch unter mechanischer Einwirkung entfernt wird. Damit wird auch in jenen Bereichen, in denen die Druckfarbe entfernt wird, die metallische Abdeckschicht mit entfernt, wodurch die im Durchlicht erkennbaren Aussparungen gebildet werden. Die metallische Abdeckschicht weist eine Dicke von 0,01 bis 1 µm auf.From the WO 99/13157 Security films for securities are known in which on a translucent film, a metallic coating is applied, which is not complete in the finished film, but has recesses that should be clearly visible in transmitted light. The production of these films takes place in that a carrier film is printed with a highly pigmented printing ink, wherein the inking is not the entire surface, the ink is dried to form a porous paint, then a metallic cover layer is applied and in a further step, the highly pigmented ink by washing is removed with a solvent, optionally also under mechanical action. Thus, even in those areas where the ink is removed, the metallic cover layer removed, whereby the recognizable in transmitted light recesses are formed. The metallic cover layer has a thickness of 0.01 to 1 μm.

Aus der EP 0 536 855 B2 ist ein Verfahren zur Herstellung eines partiell metallisierten Streifens bekannt, bei dem entweder durch Heißprägen oder unter Verwendung einer Maske bei der Vakuummetallisierung oder durch partielles chemisches Ätzen die entsprechende Metallisierung hergestellt wird.From the EP 0 536 855 B2 For example, a method for producing a partially metallized strip is known in which the corresponding metallization is produced either by hot stamping or by using a mask in the vacuum metallization or by partial chemical etching.

Eine Individualisierung der partiellen Metallisierung ist nicht vorgesehen und kann nur in einem weiteren Verfahrensschritt, beispielsweise mittels einer Laserbehandlung, durch die die Metallisierung definiert abgetragen wird, erfolgen.An individualization of the partial metallization is not provided and can only take place in a further method step, for example by means of a laser treatment, by means of which the metallization is removed in a defined manner.

Aufgabe der Erfindung war es ein Verfahren zur Herstellung eines partiell metallisierten Trägersubstrats bereitzustellen, bei dem auf einfache Weise direkt eine individualisierte partielle Metallisierung hergestellt werden kann.The object of the invention was to provide a method for producing a partially metallized carrier substrate, in which a simple individualized partial metallization can be produced directly.

Gegenstand der Erfindung ist daher ein Verfahren zur Herstellung eines metallisierten Trägersubstrats, dadurch gekennzeichnet, dass

  • a) in einem ersten Schritt auf ein Trägersubstrat in einem Digitaldruckverfahren partiell eine aufschmelzbare Druckfarbe aufgebracht wird,
  • b) in einem zweiten Schritt eine vollflächige Metallisierung des Trägersubstrats erfolgt,
  • c) in einem dritten Schritt das Trägersubstrat erwärmt wird, wobei die im ersten Schritt aufgebrachte aufschmelzbare Druckfarbe schmilzt, worauf
  • d) in einem vierten Schritt die nun flüssige Druckfarbe durch mechanische Einwirkung oder mittels Ultraschallbehandlung zusammen mit der darüber liegenden Metallschicht entfernt wird.
The invention therefore provides a process for producing a metallized carrier substrate, characterized in that
  • a) in a first step on a carrier substrate in a digital printing process partially a fusible ink is applied,
  • b) in a second step, a full-surface metallization of the carrier substrate,
  • c) in a third step, the carrier substrate is heated, wherein the applied in the first step meltable ink melts, whereupon
  • d) in a fourth step, the now liquid printing ink is removed by mechanical action or by ultrasound treatment together with the overlying metal layer.

Als Trägersubstrate kommen beispielsweise Trägerfolien, vorzugsweise flexible transparente Kunststofffolien, beispielsweise aus Pl, PP, MOPP, PE, PPS, PEEK, PEK, PEI, PAEK, LCP, PEN, PBT, PET, PA, PC, COC, POM, ABS, PVC in Frage.
Die Trägerfolien weisen vorzugsweise eine Dicke von 5 - 700 µm, bevorzugt 5 - 200 µm, besonders bevorzugt 5 - 50 µm auf.Carrier substrates are, for example, carrier films, preferably flexible transparent plastic films, for example made of PI, PP, MOPP, PE, PPS, PEEK, PEK, PEI, PAEK, LCP, PEN, PBT, PET, PA, PC, COC, POM, ABS, PVC in question.
The carrier films preferably have a thickness of 5 to 700 .mu.m, preferably 5 to 200 .mu.m, particularly preferably 5 to 50 .mu.m.

Ferner können als Trägersubstrat auch Metallfolien, beispielsweise Al-, Cu-, Sn-, Ni-, Fe- oder Edelstahlfolien mit einer Dicke von 5 - 200 µm, vorzugsweise 10 bis 80 µm, besonders bevorzugt 20 - 50 µm dienen. Die Folien können auch oberflächenbehandelt, beschichtet oder kaschiert beispielsweise mit Kunststoffen oder lackiert sein.Furthermore, metal foils, for example Al, Cu, Sn, Ni, Fe or stainless steel foils having a thickness of 5-200 μm, preferably 10 to 80 μm, particularly preferably 20-50 μm, may also serve as the carrier substrate. The films can also be surface-treated, coated or laminated, for example, with plastics or painted.

Ferner können als Trägersubstrate auch Papier oder Verbunde mit Papier, beispielsweise Verbunde mit Kunststoffen mit einem Flächengewicht von 20 - 500 g/m2, vorzugsweise 40 - 200 g/m2. verwendet werden.Further, as carrier substrates also paper or composites with paper, for example, composites with plastics with a grammage 20-500 g / m 2, preferably 40-200 g / m 2. be used.

Ferner können als Trägersubstrate Gewebe oder Vliese, wie Endlosfaservliese, Stapelfaservliese und dergleichen, die gegebenenfalls vernadelt und/oder kalandriert sein können, verwendet werden. Vorzugsweise bestehen solche Gewebe oder Vliese aus Kunststoffen, wie PP, PET, PA, PPS und dergleichen, es können aber auch Gewebe oder Vliese aus natürlichen, gegebenenfalls behandelten Fasern, wie Viskosefasern eingesetzt werden. Die eingesetzten Vliese oder Gewebe weisen ein Flächengewicht von etwa 20 g/m2 bis 500 g/m2 auf. Gegebenenfalls müssen die Vliese oder Gewebe oberflächenbehandelt werden.Furthermore, woven or nonwovens, such as continuous fiber webs, staple fiber webs and the like, which may optionally be needled and / or calendered, can be used as the carrier substrates. Preferably such fabrics or webs of plastics, such as PP, PET, PA, PPS and the like, but it can also be woven or nonwovens made of natural, optionally treated fibers, such as viscose fibers are used. The nonwovens or fabrics used have a weight per unit area of about 20 g / m 2 to 500 g / m 2 . If necessary, the nonwovens or fabrics must be surface-treated.

Auf das Trägersubstrat wird dann mittels eines Digitaldruckverfahrens partiell eine aufschmelzbare Digitaldruckfarbe in Form der gewünschten späteren Aussparungen in der metallischen Schicht aufgebracht.A fusible digital printing ink in the form of the desired later recesses in the metallic layer is then partially applied to the carrier substrate by means of a digital printing method.

Vorzugsweise kann eine transparente Druckfarbe verwendet werden, wobei dadurch vermieden wird dass evt. Reste der Druckfarbe am Rand der Aussparungen sichtbar sind.
Vorzugsweise wird dabei eine Digitaldruckfarbe verwendet, die bei etwa 90 bis 160°C, bevorzugt 100 - 120°C schmilzt.
Bevorzugt kann die Aufbringung der Druckfarbe individualisiert erfolgen.Preferably, a transparent ink can be used, thereby avoiding that possibly residues of the ink are visible at the edge of the recesses.
Preferably, a digital ink is used which melts at about 90 to 160 ° C, preferably 100 - 120 ° C.
Preferably, the application of the ink can be made individualized.

Die Aufbringung der Digitaldruckfarbe kann individualisiert erfolgen und in Form von in Form von Mustern, Linien, geometrischen Figuren, Zeichen, Buchstaben, Zahlen, eines Rasters und dergleichen aufgebracht werden.The application of the digital ink can be individualized and applied in the form of in the form of patterns, lines, geometric figures, characters, letters, numbers, a grid and the like.

Anschließend wird das Trägersubstrat vollflächig metallisiert.
Diese Schicht besteht aus einem Metall, einer Metallverbindung, oder einer Legierung. Als Metallschicht sind Schichten aus Al, Cu, Fe, Ag, Au, Cr, Ni, Zn und dergleichen geeignet. Als Metallverbindungen sind beispielsweise Oxide oder Sulfide von Metallen, insbesondere TiO2, Cr-Oxide, ZnS, ITO, ATO, FTO, ZnO, Al2O3 oder Siliciumoxide geeignet. Geeignete Legierungen sind beispielsweise Cu-Al Legierungen, Cu-Zn Legierungen und dergleichen.
Diese funktionelle Schicht kann durch bekannte Verfahren, beispielsweise durch Bedampfen, Sputtern, Drucken (Tief-, Flexo-, Sieb-, Digitaldruck und dergleichen), Sprühen, Galvanisieren und dergleichen aufgebracht werden. Die Dicke der funktionellen Schicht beträgt 0,001 bis 50 µm, vorzugsweise 0,1 bis 20 µm.Subsequently, the carrier substrate is metallized over the entire surface.
This layer consists of a metal, a metal compound, or an alloy. As the metal layer, layers of Al, Cu, Fe, Ag, Au, Cr, Ni, Zn and the like are suitable. Examples of suitable metal compounds are oxides or sulfides of metals, in particular TiO 2 , Cr oxides, ZnS, ITO, ATO, FTO, ZnO, Al 2 O 3 or silicon oxides. Suitable alloys are, for example, Cu-Al alloys, Cu-Zn alloys and the like.
This functional layer may be applied by known methods such as sputtering, sputtering, printing (gravure, flexo, screen, digital printing and the like), spraying, electroplating and the like. The thickness of the functional layer is 0.001 to 50 μm, preferably 0.1 to 20 μm.

Das metallisierte Trägersubstrat wird anschließend erwärmt, sodass die aufgebrachte Digitaldruckfarbe schmilzt. Das Erwärmen kann durch Leiten über eine beheizbare Walze, durch Führen durch einen Trockentunnel, Erwärmen mittels eines IR-Strahlers und dergleichen erfolgen.The metallized carrier substrate is then heated so that the applied digital ink melts. The heating may be carried out by passing over a heatable roll, passing through a drying tunnel, heating by means of an IR radiator and the like.

Anschließend wird die flüssige Digitaldruckfarbe zusammen mit der in diesen Bereichen darüberliegenden metallischen Schicht durch mechanische Einwirkung, beispielsweise mit einer Abstreifwalze, eines textilen Flächengebildes und dergleichen oder durch Ultraschallbehandlung entfernt.Subsequently, the liquid digital ink together with the overlying in these areas metallic layer by mechanical Exposure, for example, with a stripping roller, a fabric and the like or removed by ultrasonic treatment.

Auf diese Weise können auf einfache Weise individualisierte partiell metallisierte Trägersubstrate hergestellt werden.In this way, individualized partially metallized carrier substrates can be produced in a simple manner.

Gegebenenfalls können auf die Trägersubstrate auch weitere funktionelle Schichten mit optischen, optisch aktiven, magnetischen und/oder elektrisch leitfähigen Eigenschaften aufgebracht werden oder bereits vor der individualisierten partiellen Metallisierung darauf vorhanden sein.Optionally, further functional layers with optical, optically active, magnetic and / or electrically conductive properties can also be applied to the carrier substrates or be present thereon before the individualized partial metallization.

Die erfindungsgemäß hergestellten Trägersubstrate werden gegebenenfalls nach entsprechender Konfektionierung (beispielsweise zu Fäden, Bändern Streifen, Patches oder anderen Formaten) daher als Sicherheitsmerkmale in Datenträgern, insbesondere Wertdokumenten wie Ausweisen, Karten, Banknoten oder Etiketten, Siegeln und dergleichen, aber auch in Verpackungsmaterial für sensible Güter, wie Pharmazeutika, Kosmetika, Datenträger, elektronische Bauteile und dergleichen verwendet.The carrier substrates produced according to the invention, if appropriate after appropriate fabrication (for example into threads, strips, patches or other formats), therefore, serve as security features in data carriers, in particular value documents such as identity cards, cards, banknotes or labels, seals and the like, but also in packaging material for sensitive goods such as pharmaceuticals, cosmetics, data carriers, electronic components and the like.

Claims (11)

Verfahren zur Herstellung eines metallisierten Trägersubstrats, dadurch gekennzeichnet, dass a) in einem ersten Schritt auf ein Trägersubstrat in einem Digitaldruckverfahren partiell eine aufschmelzbare Druckfarbe aufgebracht wird, b) in einem zweiten Schritt eine vollflächige Metallisierung des Trägersubstrats erfolgt, c) in einem dritten Schritt das Trägersubstrat erwärmt wird, wobei die im ersten Schritt aufgebrachte aufschmelzbare Druckfarbe schmilzt, worauf d) in einem vierten Schritt die nun flüssige Druckfarbe durch mechanische Einwirkung oder mittels Ultraschallbehandlung zusammen mit der darüber liegenden Metallschicht entfernt wird. Method for producing a metallized carrier substrate, characterized in that a) in a first step on a carrier substrate in a digital printing process partially a fusible ink is applied, b) in a second step, a full-surface metallization of the carrier substrate, c) in a third step, the carrier substrate is heated, wherein the applied in the first step meltable ink melts, whereupon d) in a fourth step, the now liquid printing ink is removed by mechanical action or by ultrasound treatment together with the overlying metal layer. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass im ersten Schritt die aufschmelzbare Druckfarbe individualisiert aufgebracht wird.A method according to claim 1, characterized in that in the first step, the fusible ink is applied individualized. Verfahren nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, dass die aufschmelzbare Druckfarbe transparent istMethod according to one of claims 1 or 2, characterized in that the fusible ink is transparent Verfahren nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die aufschmelzbare Druckfarbe im Bereich von 90 - 160°C schmilzt.Method according to one of claims 1 to 3, characterized in that the meltable ink melts in the range of 90 - 160 ° C. Verfahren nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass als Trägersubstrat Kunststofffolien, Metallfolien, Papier, Verbunde mit Papier, Vliese oder Gewebe verwendet werden.Method according to one of claims 1 to 4, characterized in that are used as a carrier substrate plastic films, metal foils, paper, composites with paper, nonwovens or fabrics. Verfahren nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass die Metallisierung aus einer Schicht aus Metall, einer Metallverbindung oder einer Legierung besteht.Method according to one of claims 1 to 5, characterized in that the metallization consists of a layer of metal, a metal compound or an alloy. Verfahren nach Anspruch 6, dadurch gekennzeichnet, dass die Metallisierung aus Al, Cu, Fe, Ag, Au, Cr, Ni, Zn, einem Sulfid oder Oxid dieser Metalle wie TiO2, Cr-Oxide, ZnS, ITO, ATO, FTO, ZnO, Al2O3 oder aus einer Cu/Al oder Cu/Zn-Legierung besteht.A method according to claim 6, characterized in that the metallization of Al, Cu, Fe, Ag, Au, Cr, Ni, Zn, a sulfide or oxide of these metals such as TiO 2 , Cr oxides, ZnS, ITO, ATO, FTO, ZnO, Al 2 O 3 or consists of a Cu / Al or Cu / Zn alloy. Verfahren nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass die Entfernung der geschmolzenen Druckfarbe im vierten Schritt mit einer Abstreifwalze oder einem textilen Flächengebilde oder durch Ultraschallbehandlung erfolgt.Method according to one of claims 1 to 7, characterized in that the removal of the molten ink in the fourth step is carried out with a stripping roller or a textile fabric or by ultrasonic treatment. Sicherheitselemente hergestellt aus einem gemäß einem den Ansprüchen 1 bis 8 hergestellten Trägersubstrat.Security elements made of a carrier substrate produced according to claims 1 to 8. Verpackungselemente oder Verpackungsfolien hergestellt aus einem gemäß den Ansprüchen 1 bis 8 hergestellten Trägersubstrat.Packaging elements or packaging films produced from a carrier substrate produced according to claims 1 to 8. Verwendung der gemäß einem der Ansprüche 1 bis 8 hergestellten Trägersubstrate als Sicherheitselemente Wertdokumenten, Datenträgern, Ausweisen und Verpackungsmaterialien.Use of the carrier substrates produced according to one of Claims 1 to 8 as security elements, value documents, data carriers, ID cards and packaging materials.
EP05015612A 2005-07-19 2005-07-19 Process for preparing a partially metallized substrate. Withdrawn EP1746208A1 (en)

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EP05015612A EP1746208A1 (en) 2005-07-19 2005-07-19 Process for preparing a partially metallized substrate.
US11/482,907 US20070044912A1 (en) 2005-07-19 2006-07-10 Method for the production of a partially metallized carrier substrate

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EP0536855B2 (en) 1985-12-05 2000-04-12 Crane & Co., Inc. Security strip for a security paper for currency & banknotes and method for producing a security strip
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Publication number Priority date Publication date Assignee Title
US4242378A (en) * 1979-03-29 1980-12-30 Reiko Co., Ltd. Method of making a decorated film with a metal layer in the form of a given pattern
EP0536855B2 (en) 1985-12-05 2000-04-12 Crane & Co., Inc. Security strip for a security paper for currency & banknotes and method for producing a security strip
EP0319157A2 (en) * 1987-12-04 1989-06-07 Portals Limited Security paper for bank notes and the like
EP0330733A1 (en) * 1988-03-04 1989-09-06 GAO Gesellschaft für Automation und Organisation mbH Thread- or strip-like security element to be included in a security document, and a method of manufacturing same
WO1999013157A1 (en) 1997-09-08 1999-03-18 Giesecke & Devrient Gmbh Secure sheet for bank note paper and method for making same
US6106910A (en) * 1998-06-30 2000-08-22 Ncr Corporation Print media with near infrared fluorescent sense mark and printer therefor
US20030175545A1 (en) * 2000-10-09 2003-09-18 Hueck Folien Gesellschaft M.B.H. Metallized film, method for the production thereof, and use thereof
EP1291463A1 (en) 2001-09-05 2003-03-12 Hueck Folien Gesellschaft m.b.H. Process for producing a selectively metallized foil, and their products

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