EP0157921A2 - Card of thermoplastics material with security masks visible at least from the top - Google Patents

Card of thermoplastics material with security masks visible at least from the top Download PDF

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Publication number
EP0157921A2
EP0157921A2 EP84114907A EP84114907A EP0157921A2 EP 0157921 A2 EP0157921 A2 EP 0157921A2 EP 84114907 A EP84114907 A EP 84114907A EP 84114907 A EP84114907 A EP 84114907A EP 0157921 A2 EP0157921 A2 EP 0157921A2
Authority
EP
European Patent Office
Prior art keywords
card
areas
parts
thermoplastic material
perceptible
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
EP84114907A
Other languages
German (de)
French (fr)
Other versions
EP0157921B1 (en
EP0157921A3 (en
Inventor
Adolf Kuhl
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.)
Orell Fuessli Graphische Betriebe AG
Orell Fussli Graphische Betriebe AG
Original Assignee
Orell Fuessli Graphische Betriebe AG
Orell Fussli Graphische Betriebe 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 Orell Fuessli Graphische Betriebe AG, Orell Fussli Graphische Betriebe AG filed Critical Orell Fuessli Graphische Betriebe AG
Priority to AT84114907T priority Critical patent/ATE50205T1/en
Publication of EP0157921A2 publication Critical patent/EP0157921A2/en
Publication of EP0157921A3 publication Critical patent/EP0157921A3/en
Application granted granted Critical
Publication of EP0157921B1 publication Critical patent/EP0157921B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/40—Manufacture
    • B42D25/405—Marking
    • B42D25/425—Marking by deformation, e.g. embossing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D2033/04—
    • B42D2033/08—
    • B42D2033/24—
    • B42D2033/30—
    • B42D2035/02—
    • B42D2035/16—
    • B42D2035/20—
    • B42D2035/30—
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/30—Identification or security features, e.g. for preventing forgery
    • B42D25/324—Reliefs
    • 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
    • Y10S283/904—Credit card
    • 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
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/10—Methods of surface bonding and/or assembly therefor
    • Y10T156/1002—Methods of surface bonding and/or assembly therefor with permanent bending or reshaping or surface deformation of self sustaining lamina
    • Y10T156/1039—Surface deformation only of sandwich or lamina [e.g., embossed panels]
    • 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.]
    • Y10T428/24479—Structurally defined web or sheet [e.g., overall dimension, etc.] including variation in thickness
    • Y10T428/24521—Structurally defined web or sheet [e.g., overall dimension, etc.] including variation in thickness with component conforming to contour of nonplanar surface
    • Y10T428/24529—Structurally defined web or sheet [e.g., overall dimension, etc.] including variation in thickness with component conforming to contour of nonplanar surface and conforming component on an opposite nonplanar surface

Definitions

  • the invention relates to a card made of thermoplastic material with safety signs that are visually perceptible at least when viewed from above with a suitable viewing angle.
  • Cards are therefore already known which are designed as composite cards, a security paper layer being enclosed between two plastic layers (cf. FR-A 2 176 463). Cards of this type are relatively expensive to produce and, in particular, do not offer any security because separation along the paper layer is easily possible.
  • papers with increased printing or embossing such as are known per se for supervisory identification, for example from FR-A 2 331 451 or DE-A 1 771 453, are not suitable for storage as security features in plastic cards. It is also not desirable to apply such structures directly to the card outer surfaces, because they are then open to unauthorized manipulation and lose their effect due to wear and soiling. Machine readability also requires cards with essentially flat surfaces.
  • the card consists of at least two half parts made of thermoplastic material of essentially the same thickness and flat outer surfaces, of which at least one is made of transparent plastic, with a positive or an opposite one in the inner surface of each half part negative relief structure is embossed, which at least in regions has a raster-like wave form and is provided with a color print such that its visual appearance changes with changing Be angle of view changed, the two halves with their embossed inner surfaces are laminated against each other at least in the unprinted areas.
  • Fig. 1 the basic structure of the plastic card from two half parts 2 and 3 is shown. A relief structure is embossed in each of these half parts before assembly.
  • the relief in the half-part 3 is preferably embossed in such a way that the total amount of material remains constant and there is only a shift in the amount of material from the areas 5 to the areas 4. This means that the average thickness over the areas 4 and 5 provided with a relief structure is equal to the thickness of the rest of the map.
  • Half part 2 is provided with a corresponding, opposite embossing, the embossing used for this shape is preferably electrolytically molded from the first embossing mold. The two half parts are then inseparably formed into a single part by laminating.
  • the relief-like interface which is created within the card 1 with the aid of the explained procedure, is designed to identify the card in supervision. If this is to be associated with see-through marking in the manner of a watermark, then one half part must continue to be made from transparent, the other from opaque thermoplastic plastic
  • FIGS. 2 and 3. 2 shows a relief structure constructed in a line-like manner in a half part 3. This structure is printed with a color strip 8, which runs in a straight line in vertical supervision.
  • the half part 3 designed in this way is combined with a counterpart, transparent half part (not (shown)) to form a card, a section of which is shown schematically in Fig. 3.
  • the vertical view is shown in Fig. 3a. Recognizable on the one hand, the straight line raster 8.
  • D a of the half-part 3 of a thermoplastic plastic with a higher light absorption coefficient in comparison with the other, against the same half part is, the light absorption in phantom at the locations 4 greater (average) thickness of greater or at the points 5 smaller (averaged) thickness smaller than in the remaining places.
  • a darkened area 4 which is surrounded by lighter areas 5, can thus be seen in the view. If the map is now viewed from an oblique view, as shown in FIG. 3b, the line pattern 8 appears slightly wavy and the darkened or lightened areas 4 and 5 disappear. This creates a double effect of supervisory labeling and transparency labeling. This combination of inspection and supervisory labeling increases the difficulty of counterfeiting such cards and therefore further increases their security.
  • FIGS. 4 and 5 Other possible configurations of the invention are shown on the basis of FIGS. 4 and 5, which allow identification in particular in the supervision.
  • a variant of this configuration is shown in section in FIG. 4.
  • the interface between the two half parts 2 and 3 each has a linear grid-shaped relief structure. This is provided with a printed pattern on one of the half parts, the appearance of which changes in the top view and in the view depending on the viewing angle.
  • This variant is based on a relief structure which has at least approximately a rectangular shape 9.
  • the side flanks and valley bottoms are provided with a color layer 10, while the tops remain free of color.
  • the colored areas 10 are essentially perceptible as lines while they are close together in an oblique view to form a continuous color surface. If colors with low light transmittance are used, a different brightness is determined in the view depending on the view angle. With vertical viewing, a greater brightness is perceived than with oblique viewing.
  • gaps 13 are provided as an additional security feature in the printing just explained, which are arranged in a line in certain directions. In supervision this is not noticeable if this structure is sufficiently fine. However, if a flat viewing angle is selected, then bright alleys appear in a dark environment. This effect, which is known per se from banknotes, but where an uneven surface is assumed, can easily be used in the manner explained as an additional security feature for flat all-plastic types.
  • FIG. 6 shows an embodiment whose relief structure essentially has a triangular shape 11 in cross section.
  • One flank 12 is provided with a color layer 12, while the other flank is free of color.
  • a changed appearance of the print pattern becomes visible, namely changing between a mere dash pattern (arrow on the left in FIG. 6) to a continuous colored area (arrow on the right in FIG. 6).
  • the perceptible brightness behaves asymmetrically if a color with low light transmission is used. If the card is tilted on the one side from a vertical view, the brightness increases, but when it is tilted on the other side it decreases.
  • This easily ascertainable security feature is by means of not to imitate external counterfeiting measures, such as external imprints, and on the other hand, since it is located on the inside of the card, manipulations are inaccessible.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Credit Cards Or The Like (AREA)
  • Laminated Bodies (AREA)
  • Adornments (AREA)

Abstract

In order to form safety markings at a planar card made of a plastics material, which card may be used, for instance, as credit card, this card is built up from at least two parts. The inner border area between these two parts comprises a relief-like structure which is the carrier of the safety marking. In order to generate a watermark-like effect the upper part is made of a opaque plastic material and the other part is made of a transparent plastics material. When viewing through this card the areas of the opaque layer having the largest thickness appear as darker areas, whereby when viewing the same way the areas having a smaller thickness show a certain brightness. After being embossed the two parts of the thermoplastic material are joined to each other such that they cannot be separated such that no access from the outside is possible to this safety marking. Accordingly, an additional safety factor is arrived at in cards which can be used as money substrate, identification means or a license for any kind of access.

Description

Die Erfindung betrifft eine Karte aus thermoplastischem Kunststoff mit mindestens in der Aufsicht bei geeignetem Betrachtungswinkel visuell wahrnehmbaren Sicherheitszeichen.The invention relates to a card made of thermoplastic material with safety signs that are visually perceptible at least when viewed from above with a suitable viewing angle.

In neuerer Zeit haben bedruckte Karten aus Kunststoff weite Verbreitung als Kredit-, Geldsubstrat-und Ausweiskarten gefunden, welche eine Dienstleistung vermitteln, einen Wert repräsentieren oder ein Zutrittsrecht beinhalten. Die den Träger identifizierende Teilinformation sowie die Merkmale, welche die Karte einer bestimmten Organisation oder einem System zuordnen, sind in Form von Aufdrucken, Prägungen, Stanzungen oder Magnet-, Laser- oder holographischer Informationen auf der Karte angeordnet. Dabei ist es nun relativ einfach, die äussere Erscheinung solcher Karten nachzubilden. Es ist einleuchtend, dass damit die Möglichkeit des Missbrauches solcher Karten, welche mehr und mehr den Bargeldverkehr ersetzen, besteht, ohne dass hierfür ein allzu grosser Aufwand nötig ist. Dabei hat insbesondere das Publikum keine Möglichkeit, sich von der Echtheit einer solchen Karte zu überzeugen.In recent times, printed cards made of plastic have found widespread use as credit, money substrate and identification cards which convey a service, represent a value or contain an access right. The partial information identifying the carrier and the features which assign the card to a specific organization or system are arranged on the card in the form of imprints, embossings, die-cuts or magnetic, laser or holographic information. It is now relatively easy to recreate the appearance of such cards. It is obvious that there is the possibility of misusing such cards, which are increasingly replacing cash transactions, without requiring too much effort. The audience in particular has no way of knowing the authenticity to convince such a card.

Es sind deshalb bereits Karten bekannt, die als Verbundkarten ausgestaltet sind, wobei eine Sicherheitspapierschicht zwischen zwei Kunststoffschichten eingeschlossen ist (vgl. FR-A 2 176 463). Derartige Karten sind relativ teuer in der Herstellung und bieten insbesondere deshalb keine Sicherheit, weil eine Auftrennung entlang der Papierschicht leicht möglich ist.Cards are therefore already known which are designed as composite cards, a security paper layer being enclosed between two plastic layers (cf. FR-A 2 176 463). Cards of this type are relatively expensive to produce and, in particular, do not offer any security because separation along the paper layer is easily possible.

Deshalb sind insbesondere mit erhöhten Bedruckungen bzw. Prägungen versehene Papiere, wie sie zur Aufsichtskennzeichnung etwa aus FR-A 2 331 451 oder DE-A 1 771 453 an sich bekannt sind, zur Einlagerung als Sicherheitsmerkmale in Kunststoffkarten nicht geeignet. Es ist auch nicht erwünscht, solche Strukturen direkt auf die Kartenaussenflächen aufzubringen, weil sie dann unerlaubten Manipulationen offen stehen und durch Abnutzung sowie Verschmutzung ihre Wirkung einbüssen. Die Maschinenlesbarkeit erfordert ebenfalls Karten mit im wesentlichen ebenen Oberflächen.For this reason, papers with increased printing or embossing, such as are known per se for supervisory identification, for example from FR-A 2 331 451 or DE-A 1 771 453, are not suitable for storage as security features in plastic cards. It is also not desirable to apply such structures directly to the card outer surfaces, because they are then open to unauthorized manipulation and lose their effect due to wear and soiling. Machine readability also requires cards with essentially flat surfaces.

Es stellt sich damit die Aufgabe, eine Vollkunststoffkarte mit den eingangs genannten, visuell wahrnehmbaren Sicherheitsmerkmalen zu schaffen, welche ebene Oberflächen und keine Einlagerungen aus Papier oder anderen Fremdmaterialien aufweist.It is therefore the task of creating an all-plastic card with the visually perceptible security features mentioned at the outset, which has flat surfaces and no deposits made of paper or other foreign materials.

Diese Aufgabe wird erfindungsgemäss dadurch gelöst, dass die Karte mindestens aus zwei Halbteilen aus thermoplastischem Kunststoff von im wesentlichen gleicher Dicke und ebenen Aussenflächen besteht, von denen mindestens einer aus durchsichtigem Kunststoff ausgebildet ist, wobei je in die Innenfläche jedes Halbteils eine postive bzw. eine gegengleich negative Reliefstruktur eingeprägt ist, die mindestens bereichsweise strichrasterartige Wellenform aufweist und derart mit einem Farbdruck versehen ist, dass sich dessen visuelle Erscheinung mit änderndem Betrachtungswinkel verändert, wobei die beiden Halbteile mit ihren geprägten Innenflächen mindestens in den unbedruckten Bereichen gegeneinander laminiert sind.This object is achieved according to the invention in that the card consists of at least two half parts made of thermoplastic material of essentially the same thickness and flat outer surfaces, of which at least one is made of transparent plastic, with a positive or an opposite one in the inner surface of each half part negative relief structure is embossed, which at least in regions has a raster-like wave form and is provided with a color print such that its visual appearance changes with changing Be angle of view changed, the two halves with their embossed inner surfaces are laminated against each other at least in the unprinted areas.

Nachfolgend wird die Erfindung anhand von Ausführungsbeispielen mittels der beiliegenden Zeichnungen näher erläutert. Darin zeigen:

  • Fig. 1 a und b den grundsätzlichen Aufbau der Karte aus zwei mit Reliefstrukturen versehenen Halbteilen,
  • Fig. 2 eine perspektivische vergrösserte Ansicht eines bedruckten Halbteils mit wellenartiger Reliefstruktur,
  • Fig. 3a und b je eine Draufsicht aus unterschiedlichen Richtungen auf eine Karte, die aus Teilen gemäss Fig. 2 zusammengefügt ist,
  • Fig. 4 eine vergrösserte schematische Schnittansicht einer weiteren Ausführungsform der Erfindung,
  • Fig. 5a und b je eine vergrösserte Draufsicht aus unterschiedlichen Winkeln auf eine besondere Variante der Ausführung nach Fig. 4, und
  • Fig. 6 ein weiteres Ausführungsbeispiel in schematischer vergrösserter Schnittansicht.
The invention is explained in more detail below on the basis of exemplary embodiments by means of the accompanying drawings. In it show:
  • F ig. 1 a and b the basic structure of the map from two half parts provided with relief structures,
  • 2 is a perspective enlarged view of a printed half part with a wave-like relief structure,
  • 3a and b each a plan view from different directions on a card, which is assembled from parts according to FIG. 2,
  • 4 is an enlarged schematic sectional view of a further embodiment of the invention,
  • 5a and b each an enlarged top view from different angles of a special variant of the embodiment according to FIG. 4, and
  • Fig. 6 shows another embodiment in a schematic enlarged sectional view.

In Fig. l ist zunächst der grundsätzliche Aufbau der Kunststoffkarte aus zwei Halbteilen 2 und 3 gezeigt. In jeden dieser Halbteile wird vor dem Zusammenfügen eine Reliefstruktur geprägt.In Fig. 1, the basic structure of the plastic card from two half parts 2 and 3 is shown. A relief structure is embossed in each of these half parts before assembly.

Die Prägung des Reliefs im Halbteil 3 erfolgt vorzugsweise derart, dass die gesamte Materialmenge konstant bleibt und nur eine Materialmengenverschiebung aus den Bereichen 5 in die Bereiche 4 stattfindet. Dies bedeutet, dass die mittlere Dicke über die mit einer Reliefstruktur versehenen Bereiche 4 und 5 gleich der Dicke der restlichen Karte ist. Der andere . Halbteil 2 wird mit einer entsprechenden, gegengleichen Prägung versehen, wobei die hierzu verwendete Prägeform vorzugsweise von der ersten Prägeform elektrolytisch abgeformt ist. Die beiden Halbteile werden dann durch Laminage untrennbar zu einem einzigen Teil homogen zusammengeformt. Entlang der mit der Reliefstruktur versehenen Grenzfläche der beiden Halbteile findet dabei mindestens in den unbedruckten Be-reichen eine Polymerisation der Kunststoffmoleküle statt, so dass eine molekulare Verbindung entsteht, die ein Auftrennen verunmöglicht. Auf die inneren Grenzflächen sind nun graphische Muster aufgedruckt, wie noch zu erläutern ist, die zusammen mit der Reliefstruktur visuelle Sicherheitskennzeichen bilden. Die Oberflächen der zusammengefügten Karte 1 sind plan und können in herkömmlicher Weise bedruckt oder beschichtet werden. Das charakteristische Kennzeichen ist dabei vollständig unzugänglich in der Karte eingeschlossen.The relief in the half-part 3 is preferably embossed in such a way that the total amount of material remains constant and there is only a shift in the amount of material from the areas 5 to the areas 4. This means that the average thickness over the areas 4 and 5 provided with a relief structure is equal to the thickness of the rest of the map. The other . Half part 2 is provided with a corresponding, opposite embossing, the embossing used for this shape is preferably electrolytically molded from the first embossing mold. The two half parts are then inseparably formed into a single part by laminating. Along the relief structure is provided with the interface of the two half-parts it is held at least in the unprinted B e-rich instead of a polymerization of the plastic molecules, so that a molecular compound, which makes it impossible for separation. As will be explained below, graphic patterns are now printed on the inner interfaces, which, together with the relief structure, form visual safety indicators. The surfaces of the assembled card 1 are flat and can be printed or coated in a conventional manner. The characteristic mark is completely inaccessible in the card.

Die reliefartige Grenzfläche, welche mit Hilfe des erläuterten Vorgehens innerhalb der Karte 1 entsteht, ist zur Kennzeichnung der Karte in Aufsicht ausgestaltet. Soll dies mit Durchsichtskennzeichnung in der Art eines Wasserzeichens verbunden sein, so ist weiterhin der eine Halbteil aus transparentem, der andere aus opakem thermoplatischem Kunststoff anzufertigenThe relief-like interface, which is created within the card 1 with the aid of the explained procedure, is designed to identify the card in supervision. If this is to be associated with see-through marking in the manner of a watermark, then one half part must continue to be made from transparent, the other from opaque thermoplastic plastic

Ein Ausführungsbeispiel,welches dies illustriert, ist in den Fig. 2 und 3 gezeigt. In Fig. 2 ist eine linienartig aufgebaute Reliefstruktur einem Halbteil 3 gezeigt. Diese Struktur ist mit einem Farbstreifen 8 bedruckt, der in senkrechter Aufsicht geradlinig verläuft. Der so ausgestaltete Halbteil 3 wird mit einem gegengleichen, transparenten Halbteil (nicht (dargestellt) zu einer Karte vereinigt, von welcher in Fig. 3 schematisch ein Abschnitt dargestellt ist. In Fig. 3a ist die senkrechte Durchsicht dargestellt. Erkennbar ist einerseits das gerade Linienraster 8. Da der Halbteil 3 aus einem thermoplastischen Kunststoff mit erhöhtem Lichtabsorptionskoeffizienten im Vergleich zum anderen, gegengleichen Halbteil besteht, ist die Lichtabsorption in der Durchsicht an den Stellen 4 grösserer (gemittelter) Dicke grösser bzw. an den Stellen 5 kleinerer (gemittelter) Dicke kleiner als an den restlichen Stellen. Neben dem Linienraster 8 ist damit in der Durchsicht eine verdunktelte Stelle 4, die von helleren Stellen 5 umgeben ist, zu sehen. Wird die Karte nun in schräger Aufsicht betrachtet, wie dies in Fig. 3b gezeigt ist, so erscheint das Linienmuster 8 leicht gewellt und die verdunktelten bzw. aufgehellten Stellen 4 und 5 verschwinden. Damit entsteht ein Doppeleffekt von Aufsichtskennzeichnung und Durchsichtskennzeichnung. Diese Verbindung von Durchsichts- und Aufsichtskennzeichnung erhöht die Schwierigkeit der Fälschung solcher Karten und vergrössert deshalb deren Sicherheit weiter.An embodiment which illustrates this is shown in FIGS. 2 and 3. 2 shows a relief structure constructed in a line-like manner in a half part 3. This structure is printed with a color strip 8, which runs in a straight line in vertical supervision. The half part 3 designed in this way is combined with a counterpart, transparent half part (not (shown)) to form a card, a section of which is shown schematically in Fig. 3. The vertical view is shown in Fig. 3a. Recognizable on the one hand, the straight line raster 8. D a of the half-part 3 of a thermoplastic plastic with a higher light absorption coefficient in comparison with the other, against the same half part is, the light absorption in phantom at the locations 4 greater (average) thickness of greater or at the points 5 smaller (averaged) thickness smaller than in the remaining places. In addition to the line grid 8, a darkened area 4, which is surrounded by lighter areas 5, can thus be seen in the view. If the map is now viewed from an oblique view, as shown in FIG. 3b, the line pattern 8 appears slightly wavy and the darkened or lightened areas 4 and 5 disappear. This creates a double effect of supervisory labeling and transparency labeling. This combination of inspection and supervisory labeling increases the difficulty of counterfeiting such cards and therefore further increases their security.

Anhand der Figuren 4 und 5 sind andere, mögliche Ausgestaltungen der Erfindung gezeigt, welche insbesondere in der Aufsicht eine Kennzeichnung erlauben. In Fig. 4 ist eine Variante dieser Ausgestaltung im Schnitt gezeigt. Die Grenzfläche zwischen den beiden Halbteilen 2 und 3 weist jeweils eine linienrasterförmige Reliefstruktur auf. Diese wird auf einem der Halbteile mit einem Druckmuster versehen, dessen Erscheinung sich in der Aufsicht und in der Durchsicht je nach dem Betrachtungswinkel ändert. Diese Variante beruht auf einer Reliefstruktur, welche mindestens angenähert eine Rechteckform 9 aufweist. Die Seitenflanken sowie Talsohlen sind dabei mit einer Farbschicht 10 versehen, während die Kuppen frei von Farbe bleiben. In der senkrechten Aufsicht sind die Farbflächen 10 im wesentlichen als Striche wahrnehmbar, während sie sich in schräger Aufsicht zu einer durchgehenden Farbfläche zusanmenschliessen. Werden Farben mit kleiner Lichtdurchlässigkeit verwendet, so wird in der Durchsicht je nach Durchsichtswinkel eine unterschiedliche Helligkeit festgestellt. Bei senkrechter Durchsicht wird demzufolge eine grössere Helligkeit wahrgenommen als bei schräger Durchsicht.Other possible configurations of the invention are shown on the basis of FIGS. 4 and 5, which allow identification in particular in the supervision. A variant of this configuration is shown in section in FIG. 4. The interface between the two half parts 2 and 3 each has a linear grid-shaped relief structure. This is provided with a printed pattern on one of the half parts, the appearance of which changes in the top view and in the view depending on the viewing angle. This variant is based on a relief structure which has at least approximately a rectangular shape 9. The side flanks and valley bottoms are provided with a color layer 10, while the tops remain free of color. In the vertical top view, the colored areas 10 are essentially perceptible as lines while they are close together in an oblique view to form a continuous color surface. If colors with low light transmittance are used, a different brightness is determined in the view depending on the view angle. With vertical viewing, a greater brightness is perceived than with oblique viewing.

In einer leicht abgewandelten Ausführung gemäss der Fig. 5a und b sind als zusätzliches Sicherheitsmerkmal Lücken 13 in der eben erläuterten Bedruckung vorgesehen, welche in bestimmten Richtungen in Linie angeordnet sind. In Aufsicht fällt dies nicht auf, wenn diese Struktur genügend fein ausgestaltet ist. Wird jedoch ein flacher Betrachtungswinkel gewählt, so erscheinen deutlich helle Gassen in dunkler Umgebung. Dieser an sich von Banknoten her bekannte Effekt, wo allerdings eine unebene Oberfläche vorausgesetzt wird, lässt sich auf die erläuterte Weise ohne weiteres als zusätzliches Sicherheitsmerkmal bei ebenen Vollkunststoffarten anwenden.In a slightly modified embodiment according to FIGS. 5a and b, gaps 13 are provided as an additional security feature in the printing just explained, which are arranged in a line in certain directions. In supervision this is not noticeable if this structure is sufficiently fine. However, if a flat viewing angle is selected, then bright alleys appear in a dark environment. This effect, which is known per se from banknotes, but where an uneven surface is assumed, can easily be used in the manner explained as an additional security feature for flat all-plastic types.

In Fig. 6 ist schliesslich eine Ausführung dargestellt, deren Reliefstruktur im Querschnitt im wesentlichen eine Dreiecksform 11 besitzt. Die eine Flanke 12 ist mit einer Farbschicht 12 versehen, während die andere Flanke frei von Farbe ist. Wiederum wird je nach Aufsichtswinkel ein verändertes Erscheinungsbild des Druckmusters sichtbar, und zwar ändernd zwischen blossem Strichmuster (Pfeil links in Fig. 6) bis zu einer durchgehenden Farbfläche (Pfeil rechts in Fig. 6). In der Durchsicht verhält sich die wahrnehmbare Helligkeit asymmetrisch, falls eine Farbe mit geringer Lichtdurchlässigkeit verwendet wird. Wird die Karte ausgehend von der senkrechten Durchsicht auf die eine Seite geneigt, so nimmt die Helligkeit zu, bei Neigung auf die andere Seite nimmt sie dagegen ab. Dieses einfach feststellbare Sicherheitsmerkmal ist mittels äusserer Fälschungsmassnahmen, wie äusseren Aufdrucken, etc. nicht zu imitieren und ist andererseits, da im Innern der Karte befindlich, Manipulationen unzugänglich.Finally, FIG. 6 shows an embodiment whose relief structure essentially has a triangular shape 11 in cross section. One flank 12 is provided with a color layer 12, while the other flank is free of color. Again, depending on the angle of view, a changed appearance of the print pattern becomes visible, namely changing between a mere dash pattern (arrow on the left in FIG. 6) to a continuous colored area (arrow on the right in FIG. 6). In perception, the perceptible brightness behaves asymmetrically if a color with low light transmission is used. If the card is tilted on the one side from a vertical view, the brightness increases, but when it is tilted on the other side it decreases. This easily ascertainable security feature is by means of not to imitate external counterfeiting measures, such as external imprints, and on the other hand, since it is located on the inside of the card, manipulations are inaccessible.

Es versteht sich von selbst, dass die ebenen Oberflächen derart gebildeter Kunststoff karten in der bekannten Weise bedruckt sein können. Für die Kennzeichnung nach der beschriebenen Art sind dann an den entsprechenden Stellen Fenster im Aufdruck vorzusehen. Ferner können Teile der Karteninformation auch im Druckmuster an der Grenzfläche vorhanden sein.It goes without saying that the flat surfaces of plastic cards formed in this way can be printed in the known manner. For labeling according to the type described, windows should then be provided in the print at the appropriate points. Furthermore, parts of the map information can also be present in the print pattern at the interface.

Die beschriebene Anordnung mit einer reliefartig ausgebildeten, mit einem Druckmuster versehenen Grenzfläche zwischen zwei Kartenteilen, welche untrennbar verbunden werden, ergibt, wie oben dargestellt, mannigfache vorteilhafte Möglichkeiten der visuellen Sicherung derartiger Karten, welche bisher nicht gegeben waren. Dabei bleiben absolut plane Oberflächen erhalten. Prägungen in der Karte führen nicht zu einer Wölbung, wie dies bei den bisher bekannten Verbundkarten der Fall war. Die Sicherheitsmerkmale sind Manipulationen unzugänglich.The arrangement described, with a relief-like interface provided with a printed pattern between two card parts which are inseparably connected, results, as shown above, in a number of advantageous ways of visually securing cards of this type, which were not previously available. Absolutely flat surfaces are preserved. Embossments in the card do not lead to a curvature, as was the case with the previously known composite cards. The security features are inaccessible to manipulation.

Claims (4)

1. Karte aus thermoplastischem Kunststoff mit mindestens in der Aufsicht bei geeignetem Betrachtungswinkel visuell wahrnehmbaren Sicherheitszeichen, dadurch gekennzeichnet, dass die Karte mindestens aus zwei Halbteilen (2,3) aus thermoplastischem Kunststoff von im wesentlichen gleicher Dicke und ebenen Aussenflächen besteht, von denen mindestens einer aus durchsichtigem Kunststoff ausgebildet ist, wobei je in die Innenfläche jedes Halbteils eine positive bzw. eine gegengleich negative Reliefstruktur eingeprägt ist, die mindestens bereichsweise strichrasterartige Wellenform aufweist und derart mit einem Farbdruck (8j9,10;12)versehen ist, dass sich dessen visuelle Erscheinung mit änderndem Betrachtungswinkel verändert, wobei die beiden Halbteile (2,3) mit ihren geprägten Innenflächen mindestens in den unbedruckten Bereichen gegeneinander laminiert sind.1. Card made of thermoplastic material with safety signs that are visually perceptible at least when viewed from a suitable angle, characterized in that the card consists of at least two half parts (2, 3) made of thermoplastic material of essentially the same thickness and flat outer surfaces, at least one of which is made of transparent plastic, a positive or an opposite negative relief structure is stamped into the inner surface of each half part, which has at least some areas in a dashed grid-like wave form and is provided with a color print (8j9,10; 12) such that its visual appearance changed with a changing viewing angle, the two half parts (2, 3) with their embossed inner surfaces being laminated against one another at least in the unprinted areas. 2. Karte nach Anspruch 1, dadurch gekennzeichnet, dass sich das Druckmuster (10,12) mindestens auf einen Teil der Flanken der Wellen erstreckt, derart dass es bei Aufsichtsrichtungen quer zu den bedruckten Flanken wahrnehmbar ist, bei Aufsichtsrichtungen parallel zu diesen Flanken dagegen im wesentlichen verschwindet.2. Card according to claim 1, characterized in that the printing pattern (10, 12) extends at least on a part of the flanks of the waves, so that it is perceptible in the direction of the view across the printed flanks, but in the direction of the view parallel to these flanks essentially disappears. 3. Karte nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass das Druckmuster Unterbrechungen (13) aufweist, wobei die einzelnen Unterbrechungen an verschiedenen Wellen geradlinig aufeinander ausgerichtet sind, derart, dass die so gebildeten Gassen quer zur Ausdehnungsrichtung der Wellen verlaufen.3. Card according to one of the preceding claims, characterized in that the print pattern has interruptions (13), wherein the individual interruptions on different shafts are aligned in a straight line, such that the alleys thus formed run transversely to the direction of expansion of the waves. 4. Karte nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass zur zusätzlichen visuellen Durchsichtskennzeichnung einer der Halbteile (2,3) aus thermoplastischem Kunststoff mit gegenüber dem ersten Halbteil erhöhtem Lichtabsorptionskoeffizienten besteht, derart, dass durch die Reliefstruktur mindestens bereichsweise eine örtlich variierende Lichtabsorption des durchtretenden Lichts verursacht wird, so dass entsprechende Helligkeitsunterschiede in der Durchsicht von Auge wahrnehmbar sind.4. Card according to one of the preceding claims, characterized in that for additional visual transparency one of the half parts (2, 3) consists of thermoplastic material with an increased light absorption coefficient compared to the first half part, such that a locally varying light absorption of the passing light is caused, so that corresponding differences in brightness are perceptible to the eye.
EP84114907A 1981-03-03 1982-02-16 Card of thermoplastics material with security masks visible at least from the top Expired - Lifetime EP0157921B1 (en)

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AT84114907T ATE50205T1 (en) 1981-03-03 1982-02-16 CARD MADE OF THERMOPLASTIC PLASTIC WITH AT LEAST VISUAL SECURITY SIGNS VIEWED UPON.

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CH1421/81 1981-03-03
CH1421/81A CH650732A5 (en) 1981-03-03 1981-03-03 LEVEL CARD MADE OF THERMOPLASTIC PLASTIC WITH VISUALLY PERCEPTABLE SAFETY LABELS AND METHOD FOR THE PRODUCTION THEREOF.

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EP82101115A Expired EP0059856B1 (en) 1981-03-03 1982-02-16 Flat card of thermoplastic material with visually readable security marks, and process for manufacturing the same

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EP (2) EP0157921B1 (en)
AT (2) ATE50205T1 (en)
CA (1) CA1181110A (en)
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Also Published As

Publication number Publication date
EP0157921B1 (en) 1990-02-07
CH650732A5 (en) 1985-08-15
US4506916A (en) 1985-03-26
ATE50205T1 (en) 1990-02-15
DE3280103D1 (en) 1990-03-15
EP0157921A3 (en) 1987-07-15
US4564409A (en) 1986-01-14
DE3268726D1 (en) 1986-03-13
ATE17683T1 (en) 1986-02-15
EP0059856A1 (en) 1982-09-15
EP0059856B1 (en) 1986-01-29
CA1181110A (en) 1985-01-15

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