EP1814744B1 - Tamper-proof identification and authentication feature for packaging materials and security applications - Google Patents

Tamper-proof identification and authentication feature for packaging materials and security applications Download PDF

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Publication number
EP1814744B1
EP1814744B1 EP04822443A EP04822443A EP1814744B1 EP 1814744 B1 EP1814744 B1 EP 1814744B1 EP 04822443 A EP04822443 A EP 04822443A EP 04822443 A EP04822443 A EP 04822443A EP 1814744 B1 EP1814744 B1 EP 1814744B1
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EP
European Patent Office
Prior art keywords
black
identification
image
colour
visible
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.)
Not-in-force
Application number
EP04822443A
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German (de)
French (fr)
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EP1814744A1 (en
Inventor
Peter Reich
Matthias Müller
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
Constantia Hueck Folien GmbH and Co KG
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Publication of EP1814744A1 publication Critical patent/EP1814744A1/en
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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
    • B42D25/20—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof characterised by a particular use or purpose
    • B42D25/23—Identity cards
    • 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
    • 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
    • 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
    • B42D25/36—Identification or security features, e.g. for preventing forgery comprising special materials
    • B42D25/378—Special inks
    • B42D25/382—Special inks absorbing or reflecting infrared light
    • 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
    • B42D25/36—Identification or security features, e.g. for preventing forgery comprising special materials
    • B42D25/378—Special inks
    • B42D25/387—Special inks absorbing or reflecting ultraviolet light

Definitions

  • the invention relates to a forgery-proof identification and authenticity feature, in particular for packaging materials, such as blister foils or security applications, such as security elements for value documents, data carriers and the like, wherein in the visible light spectrum and in the infrared spectrum different markers, images, patterns and the like are visible.
  • an article having a security marking which has two at least partially overlapping imprints, one of which is substantially invisible or only weakly visible, but absorbs ⁇ 1000 nm in certain spectral regions and the other imprint is visually clearly visible and vice versa visible spectral range of ⁇ 1000 nm has no absorption.
  • WO 03/056500 A discloses under visible light unrecognizable images that are visible under UV light on an initially blank non-printed area.
  • the object of the invention was to provide an identification and authenticity feature which has at least one visually clearly visible imprint in the form of images, patterns, characters, lines and the like in visible light, which when viewed in IR light into different images, patterns, characters Lines and the like disintegrate and optionally has a further colored imprint.
  • a further object of the invention is to provide a corresponding printing method, for example impact or non-impact printing methods, flexographic printing methods, digital printing methods or, for example, a gravure printing method and a corresponding printing cylinder or a corresponding printing plate, with the aid of which it is possible to provide the identification and authenticity features produce exactly with high resolution.
  • the invention therefore provides an identification and authenticity feature as defined in claim 1.
  • the visually clearly visible image, pattern, line, character in visible light consists of an imprint, where appropriate pure cyan, magenta, yellow or other colors, as well as two different black compositions, on the one hand a black color of mixture Cyan, magenta and yellow, or Si black or ITO black, on the other hand, a color is printed with true black pigments such as carbon black or other inorganic pigments such as iron oxide pigments and the like.
  • the print is applied in the form of an image, a pattern, a character, lines and the like, the color dots or the real and the spurious black dots being arranged such that, when viewed under visible light, a colored image, pattern, character or lines are visible.
  • the identification and authenticity feature preferably has one or more further colored imprints, for example in cyan, magenta and / or yellow, and / or of luminescent, for example fluorescent or phosphorescent paints or varnishes, this imprint being another one in visible light or UV Light forms colored appearing image, pattern, characters or lines and the like.
  • the respective imprints may be arranged on one or on different sides of a carrier substrate, wherein partial imprints on different sides of a carrier substrate may be present, for example, complement each other only in transmitted light to a desired image, characters, patterns, line and the like.
  • This supplementation can be done either already when viewed in visible transmitted light.
  • Carrier substrates are, for example, carrier films, preferably flexible transparent plastic films, for example 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.
  • Inventive identification or authenticity features are shown.
  • 1 means the support substrate 2 an area printed with true black dots, 3 an area printed with spurious black dots, 4 an area provided with a colored imprint, 5 an area of a packaging material, for example a deep-drawn area of a blister sheet or the area of a cover film which covers the deep-drawn area, and 6 the area in which the identification or authenticity feature according to the invention is applied.
  • Fig.1 a the illustrated identification and authenticity feature in addition to colored imprints.
  • FIG. 2 This in Fig. 2 feature of the invention shown in the visible light colored lettering in IR light, a second logo or an additional pattern visible.
  • Fig. 3 shows a colored in visible light lettering on a black background, the contours of the lettering appear white in the IR light.
  • Fig. 4 shows a lettering that is invisible in visible light, in IR light the contours of the lettering appear white.
  • Fig. 5 shows a lettering in the visible light appears black on a colored background in IR light the contours of the lettering appear white.
  • FIG. 6 and FIG. 7 show on one side of the carrier substrate arranged imprints of real and spurious black dots, wherein in Fig. 7 additionally a colored imprint is available.
  • Fig. 8 shows a carrier substrate in which the colored print is applied to the second side of the carrier substrate, the imprints of real and spurious color dots on the opposite side.
  • FIGS. 9 and 10 show on different sides of the carrier substrate arranged imprints of real and spurious color dots, each complementing a corresponding image, wherein Fig. 10 an additional color print (for example on both sides of the carrier substrate) is present.
  • Fig. 11 shows the application of an identification or authenticity feature according to the invention to a packaging film, in particular to a blister film, wherein different situations of the feature are represented in relation to the cavities of the blister film.
  • Another object of the invention is a method for producing identification and authenticity features with at least two information contents, characterized in that the imprints are produced by means of an impact or non-impact printing method with precise register accuracy.
  • Another object of the invention is a method for producing the identification and authenticity features according to the invention in the gravure printing method by means of a cylinder or a printing plate, wherein the cylinder or the printing plate is suitable for the production of register-containing imprints.
  • Another object of the invention is a gravure cylinder or a gravure printing plate for the production of identification and authenticity features with at least two information contents, characterized in that the printing cylinder or the printing plate is produced with a screen resolution of ⁇ 2400 dpi.
  • the grid resolution in Think mode can be 2400 dpi or more. With the method according to the invention but also higher raster resolutions of about 5080 dpi and more can be obtained.
  • the required raster resolution is generated in a bitmap file and then the printing cylinder or the printing plate is exposed.
  • a corresponding data file is generated in a first step.
  • the corresponding image for example, an 8-bit image via an appropriate detection device, such as a scanner, such as an EBV scanner, such as Hell Graphics Systems S3300 read in an electronic image processing program such as Hell Linocolor or Adobe Photoshop.
  • the corresponding image can also be created electronically using suitable software, eg Adobe Illustrator, Corel Draw, Freehand etc.
  • the desired image is then printed in a suitable software program, for example in Barco Fortuna, with the corresponding geometric shapes, e.g. Gulliochen, sinewaves, stripes, etc. connected.
  • a suitable software program for example in Barco Fortuna, with the corresponding geometric shapes, e.g. Gulliochen, sinewaves, stripes, etc. connected.
  • About the lineweight function provided by the appropriate software, e.g. Variable Linewidth Generator will now modulate the geometric element.
  • the image produced in this way is then exposed to a prepared cylinder in a corresponding exposure system.
  • a gravure cylinder with a core of iron tube with wall thickness 20 mm, and the following layers: 5-7 ⁇ m nickel layer, 300 ⁇ m copper layer; existing photosensitive layer with the corresponding patterns, shapes, lines, letters in the form of the previously defined grid imaged, developed and etched.
  • the coating of the cylinder is carried out in the usual way with a Kunststoffübertragungsrad, or by spraying rolling, brushing, dipping, or by means of a Vorhang Huaweisvons, preferably in a layer thickness of 2-10 microns with a commercially available photosensitive composition, for example, LD 100, OHKA Kogyo Ltd.
  • Overcoat provided with a layer thickness of 1 - 5 microns, for example with OC-40 (OHKA Kogyo Ltd) or with an analogous similar commercial composition.
  • the development takes place after the exposure in the usual manner, for example, contactless with sodium carbonate (0.5% solution), this is usually followed by a cleaning process with water, after which the cylinder is dried.
  • etching following the laser beam imaging reflects the image, patterns, shapes and the like defined by the laser beam imaging on the surface of the cylinder.
  • the etching can be carried out in various ways, for example by means of a Fe (III) chloride solution or a Cu (II) chloride solution, if appropriate with the addition of HCl or H 2 SO 4 . If appropriate, commercially available and known additives for flank protection can also be added to the etching solution.
  • the duration of the action of the etchant depends on the etchant used and is for example when using a Cu-chloride solution with the addition of an acid about 90 - 2400 sec.
  • the product may therefore be suitable as a security element in data carriers, in particular value documents such as ID cards, banknotes or labels, seals and the like, but also as packaging material, for example in the pharmaceutical and food industry, for example in the form of or on blister foils, folding cartons, Covers, foil packaging and the like suitable.
  • the substrates or film materials are preferably cut into strips and threads, wherein the width of the strips or threads may preferably be 0.05-10 mm.
  • the imprint can also be applied directly to a packaging film, for example a blister film or a deep-drawn blister film or to a cover film register and registration or applied to a film material for security elements.
  • a packaging film for example a blister film or a deep-drawn blister film or to a cover film register and registration or applied to a film material for security elements.

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  • Printing Methods (AREA)

Abstract

The invention concerns a tamper-proof identification and authentication feature for packaging materials such as blister package films or security applications such as security elements for valuable documents, data media and the like. Various marks, images, models and the like are visible in the visible spectrum range and in the infrared spectrum range.

Description

Die Erfindung betrifft ein fälschungssicheres Identifikations- und Authentizitätsmerkmal insbesondere für Verpackungsmaterialien, wie Blisterfolien oder für Sicherheitsanwendungen, wie Sicherheitselemente für Wertdokumente, Datenträger und dergleichen, wobei im Bereich des sichtbaren Lichtspektrums und im Bereich des Infrarotspektrums unterschiedliche Markierungen, Bilder, Muster und dergleichen sichtbar sind.The invention relates to a forgery-proof identification and authenticity feature, in particular for packaging materials, such as blister foils or security applications, such as security elements for value documents, data carriers and the like, wherein in the visible light spectrum and in the infrared spectrum different markers, images, patterns and the like are visible.

Aus der EP 340 898 B1 sind Sicherheitscodierungen mit zwei Identifizierungsmarken bekannt, die in unterschiedlichen Spektralbereichen absorbieren.From the EP 340 898 B1 For example, security codes are known with two tags that absorb in different spectral ranges.

Aus der DE 101 49 265 ist ein Gegenstand mit einer Sicherheitsmarkierung bekannt, der zwei zumindest teilweise überlappende Aufdrucke aufweist, wovon einer im Wesentlichen nicht oder nur schwach sichtbar ist, aber in bestimmten Spektralbereichen nämlich ≥ 1000 nm absorbiert und der andere Aufdruck in umgekehrter Weise visuell gut sichtbar ist und im nicht sichtbaren Spektralbereich von ≥ 1000 nm keine Absorption aufweist.From the DE 101 49 265 For example, an article is known having a security marking which has two at least partially overlapping imprints, one of which is substantially invisible or only weakly visible, but absorbs ≥ 1000 nm in certain spectral regions and the other imprint is visually clearly visible and vice versa visible spectral range of ≥ 1000 nm has no absorption.

WO 03/056500 A offenbart unter sichtbarem Licht nicht erkennbare Bilder, die unter UV-Licht auf einer vorerst blanken nicht bedruckten Fläche sichtbar werden. WO 03/056500 A discloses under visible light unrecognizable images that are visible under UV light on an initially blank non-printed area.

In US 3,640 009 sind Bilder, Unterschriften und dergleichen, beschrieben, die erst unter Betrachtung in einem Lichtbereich, der nicht dem sichtbaren Lichtbereich entspricht auf einer blanken Fläche erkennbar werden.In US 3,640,009 are pictures, signatures and the like, described, the only when viewed in a light area, which does not correspond to the visible light area on a bare surface recognizable.

Die exakte Überlappung der beiden Aufdrucke ist jedoch im Druckverfahren nur bei Registerhaltigkeit der Farben möglich.However, the exact overlapping of the two imprints is possible in the printing process only with register accuracy of the colors.

Aufgabe der Erfindung war es ein Identifikations- und Authentizitätsmerkmal bereitzustellen, das im sichtbaren Licht mindestens einen visuell gut sichtbaren Aufdruck in Form von Bildern, Mustern, Zeichen, Linien und dergleichen aufweist, der bei Betrachtung im IR-Licht in unterschiedliche Bilder, Muster, Zeichen Linien und dergleichen zerfällt und das gegebenenfalls einen weiteren farbigen Aufdruck aufweist.
Ferner war es Aufgabe der Erfindung ein entsprechendes Druckverfahren, beispielsweise Impact- oder Non-Impact-Druckverfahren, Flexodruckverfahren, Digitaldruckverfahren oder beispielsweise ein Tiefdruckverfahren und einen entsprechenden Druckzylinder bzw. eine entsprechende Druckplatte bereitzustellen, mit deren Hilfe es möglich ist, die Identifikations- und Authentizitätsmerkmale exakt mit hoher Auflösung herzustellen.The object of the invention was to provide an identification and authenticity feature which has at least one visually clearly visible imprint in the form of images, patterns, characters, lines and the like in visible light, which when viewed in IR light into different images, patterns, characters Lines and the like disintegrate and optionally has a further colored imprint.
A further object of the invention is to provide a corresponding printing method, for example impact or non-impact printing methods, flexographic printing methods, digital printing methods or, for example, a gravure printing method and a corresponding printing cylinder or a corresponding printing plate, with the aid of which it is possible to provide the identification and authenticity features produce exactly with high resolution.

Gegenstand der Erfindung ist daher ein Identifikations- und Authentizitätsmerkmal wie es in Anspruch 1 definiert ist.The invention therefore provides an identification and authenticity feature as defined in claim 1.

Das im sichtbaren Licht visuell gut sichtbare Bild, Muster, Linie, Zeichen, besteht aus einem Aufdruck, wobei ggf. reine Cyan-, Magenta-, Gelb-Farben oder andere Farben, sowie zwei verschiedene Schwarzzusammensetzungen, nämlich einerseits eine schwarze Farbe aus Mischung aus Cyan, Magenta und Gelb, oder Si-Schwarz oder ITO-Schwarz andererseits eine Farbe mit echten Schwarzpigmenten, wie Russ oder andere anorganische Pigmente, wie Eisenoxidpigmente und dergleichen verdruckt werden.
Der Aufdruck wird jeweils in Form eines Bildes, eines Musters, Zeichens, in Form von Linien und dergleichen aufgebracht, wobei die Farbpunkte bzw. die echten und die unechten Schwarzpunkte so angeordnet werden, dass bei Betrachtung unter sichtbarem Licht ein farbiges Bild, Muster, Zeichen oder Linien sichtbar sind. Bei Betrachtung unter IR-Licht erscheinen die aus unechten Schwarzpunkten (aus einer Mischung von Cyan, Magenta und Gelb bestehende Schwarzpunkte) des Aufdrucks weiß, die echten Schwarzpunkte erscheinen schwarz. Somit erscheint im IR Licht ein unterschiedliches Bild. Ferner weist das Identifikations- und Authentizitätsmerkmal vorzugsweise einen oder mehrere weitere farbige Aufdrucke, beispielweise in Cyan, Magenta und/oder Gelb, und/oder aus lumineszierenden, beispielsweise fluoreszierenden oder phosporeszierenden Farben oder Lacken auf, wobei dieser Aufdruck ein weiteres im sichtbaren Licht oder UV-Licht farbig erscheinendes Bild, Muster, Zeichen oder Linien und dergleichen bildet.The visually clearly visible image, pattern, line, character in visible light consists of an imprint, where appropriate pure cyan, magenta, yellow or other colors, as well as two different black compositions, on the one hand a black color of mixture Cyan, magenta and yellow, or Si black or ITO black, on the other hand, a color is printed with true black pigments such as carbon black or other inorganic pigments such as iron oxide pigments and the like.
The print is applied in the form of an image, a pattern, a character, lines and the like, the color dots or the real and the spurious black dots being arranged such that, when viewed under visible light, a colored image, pattern, character or lines are visible. When viewed under IR light, the black dots (consisting of a mixture of cyan, magenta, and yellow) of the print appear white, the true black dots appear black. Thus, a different picture appears in the IR light. Furthermore, the identification and authenticity feature preferably has one or more further colored imprints, for example in cyan, magenta and / or yellow, and / or of luminescent, for example fluorescent or phosphorescent paints or varnishes, this imprint being another one in visible light or UV Light forms colored appearing image, pattern, characters or lines and the like.

Dabei können die jeweiligen Aufdrucke auf einer oder auf unterschiedlichen Seiten eines Trägersubstrats angeordnet sein, wobei auch Teilaufdrucke auf unterschiedlichen Seiten eines Trägersubstrats vorhanden sein können, die sich beispielsweise erst im Durchlicht zu einem gewünschten Bild, Zeichen, Muster, Linie und dergleichen ergänzen. Dabei kann diese Ergänzung entweder bereits bei Betrachtung im sichtbaren Durchlicht erfolgen. Es ist aber auch möglich die Aufdrucke so anzuordnen, dass erst bei Betrachtung im IR-Durchlicht (mit einer IR-Kamera) sich aus den im sichtbaren Licht einheitlichen Aufdrucken unterschiedliche Bilder, Muster, Zeichen, Linien und dergleichen ergeben, deren Teilaufdrucke auf verschiedenen Seiten des Trägersubstrats aufgebracht sind.In this case, the respective imprints may be arranged on one or on different sides of a carrier substrate, wherein partial imprints on different sides of a carrier substrate may be present, for example, complement each other only in transmitted light to a desired image, characters, patterns, line and the like. This supplementation can be done either already when viewed in visible transmitted light. But it is also possible to arrange the prints so that only when viewed in IR transmitted light (with an IR camera) from the uniform in visible light imprints different images, patterns, characters, lines and the like result, their partial imprints on different pages the carrier substrate are applied.

Die Aufdrucke werden vorzugsweise auf ein flexibles Trägersubstrat aufgebracht.
Als Trägersubstrate kommen beispielsweise Trägerfolien, vorzugsweise flexible transparente Kunststofffolien, beispielsweise aus PI, 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.The imprints are preferably applied to a flexible carrier substrate.
Carrier substrates are, for example, carrier films, preferably flexible transparent plastic films, for example 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.

In den Fig. 1 bis 11 sind erfindungsgemäße Identifikations- bzw. Authentizitätsmerkmale dargestellt.
Darin bedeuten 1 das Trägersubstrat 2 einen Bereich, der mit echten Schwarzpunkten bedruckt ist, 3 einen Bereich der mit unechten Schwarzpunkten bedruckt ist, 4 einen Bereich, der mit einem farbigen Aufdruck versehen ist, 5 einen Bereich eines Verpackungsmaterials, beispielsweise einen tiefgezogenen Bereich einer Blisterfolie oder den Bereich einer Abdeckfolie, der den tiefgezogenen Bereich abdeckt, und 6 den Bereich in dem das erfindungsgemäße Identifikations- bzw. Authentizitätsmerkmal aufgebracht ist.In the Fig. 1 to 11 Inventive identification or authenticity features are shown.
Therein 1 means the support substrate 2 an area printed with true black dots, 3 an area printed with spurious black dots, 4 an area provided with a colored imprint, 5 an area of a packaging material, for example a deep-drawn area of a blister sheet or the area of a cover film which covers the deep-drawn area, and 6 the area in which the identification or authenticity feature according to the invention is applied.

Das in Fig. 1 dargestellte Identifikations- und Authentizitätsmerkmal erscheint im sichtbaren Licht vollständig schwarz, im IR-Licht wird der Schriftzug weiß sichtbar.This in Fig. 1 The identification and authenticity feature shown in the visible light appears completely black, in IR light the lettering becomes white.

In Fig.1 a weist das dargestellte Identifikations- und Authentizitätsmerkmal zusätzlich farbige Aufdrucke auf.In Fig.1 a, the illustrated identification and authenticity feature in addition to colored imprints.

Das in Fig. 2 dargestellte erfindungsgemäße Merkmal zeigt im sichtbaren Licht einen farbigen Schriftzug, im IR-Licht werden ein zweiter Schriftzug bzw. ein zusätzliches Muster sichtbar.This in Fig. 2 feature of the invention shown in the visible light colored lettering in IR light, a second logo or an additional pattern visible.

Fig. 3 zeigt einem im sichtbaren Licht färbigen Schriftzug auf schwarzem Grund, wobei die Konturen des Schriftzugs im IR-Licht weiß erscheinen. Fig. 3 shows a colored in visible light lettering on a black background, the contours of the lettering appear white in the IR light.

Fig. 4 zeigt einen Schriftzug, der im sichtbaren Licht unsichtbar ist, im IR-Licht erscheinen die Konturen des Schriftzugs weiß. Fig. 4 shows a lettering that is invisible in visible light, in IR light the contours of the lettering appear white.

Fig. 5 zeigt einen Schriftzug der im sichtbaren Licht schwarz auf färbigem Hintergrund erscheint, im IR-Licht erscheinen die Konturen des Schriftzugs weiß. Fig. 5 shows a lettering in the visible light appears black on a colored background in IR light the contours of the lettering appear white.

Fig. 6 und Fig 7 zeigen auf einer Seite des Trägersubstrats angeordnete Aufdrucke aus echten und unechten Schwarzpunkten, wobei in Fig. 7 zusätzlich ein färbiger Aufdruck vorhanden ist. 6 and FIG. 7 show on one side of the carrier substrate arranged imprints of real and spurious black dots, wherein in Fig. 7 additionally a colored imprint is available.

Fig. 8 zeigt ein Trägersubstrat, bei dem der färbige Aufdruck auf der zweiten Seite des Trägersubstrats aufgebracht ist, die Aufdrucke aus echten und unechten Farbpunkten auf der gegenüberliegenden Seite. Fig. 8 shows a carrier substrate in which the colored print is applied to the second side of the carrier substrate, the imprints of real and spurious color dots on the opposite side.

Fig. 9 und Fig. 10 zeigen auf unterschiedlichen Seiten des Trägersubstrats angeordnete Aufdrucke aus echten und unechten Farbpunkten, die sich jeweils zu einem entsprechenden Bild ergänzen, wobei in Fig. 10 ein zusätzlicher farbiger Aufdruck (beispielhaft auf beiden Seiten des Trägersubstrats) vorhanden ist. FIGS. 9 and 10 show on different sides of the carrier substrate arranged imprints of real and spurious color dots, each complementing a corresponding image, wherein Fig. 10 an additional color print (for example on both sides of the carrier substrate) is present.

Fig. 11 zeigt die Aufbringung eines erfindungsgemäßen Identifikations- oder Authentizitätsmerkmals auf eine Verpackungsfolie, insbesondere auf eine Blisterfolie, wobei unterschiedliche Situierungen des Merkmals im Verhältnis zu den Kavitäten der Blisterfolie dargestellt sind. Fig. 11 shows the application of an identification or authenticity feature according to the invention to a packaging film, in particular to a blister film, wherein different situations of the feature are represented in relation to the cavities of the blister film.

Ein weiterer Gegenstand der Erfindung ist ein Verfahren zur Herstellung von Identifikations- und Authentizitätsmerkmalen mit mindestens zwei Informationsinhalten, dadurch gekennzeichnet, dass die Aufdrucke mittels eines Impact- oder Non-Impactdruckverfahrens mit präziser Registerhaltigkeit hergestellt werden.Another object of the invention is a method for producing identification and authenticity features with at least two information contents, characterized in that the imprints are produced by means of an impact or non-impact printing method with precise register accuracy.

Ein weiterer Gegenstand der Erfindung ist ein Verfahren zur Herstellung der erfindungsgemäßen Identifikations- und Authentizitätsmerkmale im Tiefdruckverfahren mittels eines Zylinders oder einer Druckplatte, wobei der Zylinder bzw. die Druckplatte zur Herstellung registerhaltiger Aufdrucke geeignet ist.Another object of the invention is a method for producing the identification and authenticity features according to the invention in the gravure printing method by means of a cylinder or a printing plate, wherein the cylinder or the printing plate is suitable for the production of register-containing imprints.

Ein weiterer Gegenstand der Erfindung ist ein Tiefdruckzylinder oder eine Tiefdruckplatte zur Herstellung von Identifikations- und Authentizitätsmerkmalen mit mindestens zwei Informationsinhalten, dadurch gekennzeichnet, dass der Druckylinder bzw. die Druckplatte mit einer Rasterauflösung von≥ 2400 dpi hergestellt wird.Another object of the invention is a gravure cylinder or a gravure printing plate for the production of identification and authenticity features with at least two information contents, characterized in that the printing cylinder or the printing plate is produced with a screen resolution of ≥ 2400 dpi.

Die Rasterauflösung beispielsweise im Think-Verfahren kann 2400 dpi oder mehr betragen. Mit dem erfindungsgemäßen Verfahren können aber auch höhere Rasterauflösungen von etwa 5080 dpi und mehr erhalten werden.For example, the grid resolution in Think mode can be 2400 dpi or more. With the method according to the invention but also higher raster resolutions of about 5080 dpi and more can be obtained.

Dazu wird die geforderte Rasterauflösung in einem Bit-Map-file erzeugt und anschließend der Druckzylinder bzw. die Druckplatte belichtet.For this purpose, the required raster resolution is generated in a bitmap file and then the printing cylinder or the printing plate is exposed.

Dazu wird in einem ersten Schritt ein entsprechendes Datenfile generiert. Hierzu wird das entsprechende Bild beispielsweise ein 8 bit Bild über ein entsprechendes Erfassungsgerät, beispielsweise einen Scanner, wie einen EBV-Scanner, wie z.B. Hell Graphics Systems S3300 in ein elektronisches Bildverarbeitungsprogramm wie z.B. Hell Linocolor oder Adobe Photoshop eingelesen.
Das entsprechende Bild kann aber auch elektronisch mittels geeigneter Software, z.B. Adobe Illustrator, Corel Draw, Freehand usw. erstellt werden.For this purpose, a corresponding data file is generated in a first step. For this purpose, the corresponding image, for example, an 8-bit image via an appropriate detection device, such as a scanner, such as an EBV scanner, such as Hell Graphics Systems S3300 read in an electronic image processing program such as Hell Linocolor or Adobe Photoshop.
However, the corresponding image can also be created electronically using suitable software, eg Adobe Illustrator, Corel Draw, Freehand etc.

Das gewünschte Bild wird anschließend in einem geeignetem Softwareprogramm, beispielsweise in Barco Fortuna, mit den entsprechenden geometrischen Formen, z.B. Gulliochen, Sinus-Waves, Stripes usw. verbunden. Über die von der entsprechenden Software bereitgestellte Linienstärkenfunktion, z.B. Variable Linewidth Generator wird nun das geometrische Element moduliert.The desired image is then printed in a suitable software program, for example in Barco Fortuna, with the corresponding geometric shapes, e.g. Gulliochen, sinewaves, stripes, etc. connected. About the lineweight function provided by the appropriate software, e.g. Variable Linewidth Generator will now modulate the geometric element.

Das auf diese Weise hergestellte Bild wird nun in einem entsprechenden Belichtungssystem auf einen vorbereiteten Zylinder belichtet.
Beispielsweise wird mit Hilfe eines Laser- oder Elektronenstrahls eine auf dem Zylinder, beispielsweise einem Tiefdruckzylinder mit einem Kern aus Eisenrohr mit Wandstärke 20 mm, und folgenden Schichten: 5-7µm Nickelschicht, 300µm Kupferschicht; vorhandene fotoempfindliche Schicht mit den entsprechenden Mustern, Formen, Linien, Buchstaben in Form des vorher definierten Rasters bebildert, entwickelt und geätzt.The image produced in this way is then exposed to a prepared cylinder in a corresponding exposure system.
For example, with the aid of a laser or electron beam on the cylinder, for example a gravure cylinder with a core of iron tube with wall thickness 20 mm, and the following layers: 5-7μm nickel layer, 300μm copper layer; existing photosensitive layer with the corresponding patterns, shapes, lines, letters in the form of the previously defined grid imaged, developed and etched.

Die Beschichtung des Zylinders erfolgt auf übliche Weise mit einem Kunststoffübertragungsrad, oder durch Sprühen Walzen, Streichen, Tauchen, oder mittels eines Vorhangauftragsverfahrens, vorzugsweise in einer Schichtdicke von 2 - 10 µm mit einer handelsüblichen fotoempfindlichen Zusammensetzung beispielsweise LD 100, Fa. OHKA Kogyo Ltd.The coating of the cylinder is carried out in the usual way with a Kunststoffübertragungsrad, or by spraying rolling, brushing, dipping, or by means of a Vorhangauftragsverfahrens, preferably in a layer thickness of 2-10 microns with a commercially available photosensitive composition, for example, LD 100, OHKA Kogyo Ltd.

Es sind aber auch alle anderen bekannten und handelsüblichen Zusammensetzungen geeignet. Anschließend wird der Zylinder mit einemHowever, all other known and commercially available compositions are also suitable. Subsequently, the cylinder with a

Overcoat mit einer Schichtdicke von 1 - 5 µm versehen, beispielsweise mit OC-40 (Fa. OHKA Kogyo Ltd) oder mit einer analogen ähnlichen handelsüblichen Zusammensetzung.Overcoat provided with a layer thickness of 1 - 5 microns, for example with OC-40 (OHKA Kogyo Ltd) or with an analogous similar commercial composition.

Die Entwicklung erfolgt nach der Belichtung auf übliche Weise, beispielsweise kontaktlos mit Natriumcarbonat (0,5% Lösung), daran schließt üblicherweise ein Reinigungsvorgang mit Wasser an, worauf der Zylinder getrocknet wird.The development takes place after the exposure in the usual manner, for example, contactless with sodium carbonate (0.5% solution), this is usually followed by a cleaning process with water, after which the cylinder is dried.

Durch ein anschließendes auf die Laser- bzw. Elektronenstrahlbebilderung folgendes konventionelles Ätzverfahren wird das durch die Laser- bzw. Elektronenstrahlbebilderung definierte Bild, Muster, Formen und dergleichen auf der Oberfläche des Zylinders wiedergespiegelt. Die Ätzung kann auf verschiedene Weise erfolgen, beispielsweise mittels einer Fe(III)chlorid-Lösung oder einer Cu(II)chlorid-Lösung gegebenenfalls unter Zusatz von HCl oder H2SO4. Der Ätzlösung können gegebenenfalls auch handelsübliche und bekannte Additive für den Flankenschutz beigegeben werden.Subsequent conventional etching process following the laser beam imaging reflects the image, patterns, shapes and the like defined by the laser beam imaging on the surface of the cylinder. The etching can be carried out in various ways, for example by means of a Fe (III) chloride solution or a Cu (II) chloride solution, if appropriate with the addition of HCl or H 2 SO 4 . If appropriate, commercially available and known additives for flank protection can also be added to the etching solution.

Die Dauer der Einwirkung des Ätzmittels ist abhängig vom verwendeten Ätzmittel und beträgt beispielsweise bei Verwendung einer Cu-Chloridlösung unter Zusatz einer Säure etwa 90 - 2400 sec.The duration of the action of the etchant depends on the etchant used and is for example when using a Cu-chloride solution with the addition of an acid about 90 - 2400 sec.

Es kann aber auch ein elektrochemisches Ätzverfahren verwendet werden.However, it is also possible to use an electrochemical etching method.

Das Produkt ist gegebenenfalls nach entsprechender Konfektionierung daher als Sicherheitselement in Datenträgern, insbesondere Wertdokumenten wie Ausweisen, Karten, Banknoten oder Etiketten, Siegeln und dergleichen geeignet, aber auch als Verpackungsmaterial beispielsweise in der pharmazeutischen und Lebensmittelindustrie, beispielsweise in Form von oder auf Blisterfolien, Faltschachteln, Abdeckungen, Folienverpackungen und dergleichen geeignet. Für die Anwendung als Sicherheitsmerkmale werden die Substrate bzw. Folienmaterialien bevorzugt in Streifen und Fäden geschnitten, wobei die Breite der Streifen oder Fäden vorzugsweise 0,05 - 10 mm betragen kann.The product may therefore be suitable as a security element in data carriers, in particular value documents such as ID cards, banknotes or labels, seals and the like, but also as packaging material, for example in the pharmaceutical and food industry, for example in the form of or on blister foils, folding cartons, Covers, foil packaging and the like suitable. For use as security features, the substrates or film materials are preferably cut into strips and threads, wherein the width of the strips or threads may preferably be 0.05-10 mm.

Gegebenfalls kann der Aufdruck auch auf direkt auf eine Verpackungsfolie, beispielsweise eine Blisterfolie oder eine tiefgezogene Blisterfolie oder auf eine Abdeckfolie register- und passergenau aufgebracht werden oder auf ein Folienmaterial für Sicherheitselemente aufgebracht werden.Optionally, the imprint can also be applied directly to a packaging film, for example a blister film or a deep-drawn blister film or to a cover film register and registration or applied to a film material for security elements.

Claims (10)

  1. Identification and authenticity feature which has at least one print, which in visible light is optically highly visible, in the form of a defined image, defined pattern, defined lines, characters and the like, characterized in that the defined image, the patterns, lines, characters and the like are constructed from pure cyan, magenta, yellow inks or other inks and of two different black compositions, firstly of false black comprising a mixture of cyan, magenta and yellow, or Si black or ITO black, and secondly of true black pigments such as carbon black or other inorganic pigments such as iron oxide pigments, with the colour dots and respectively the true and the false black dots being arranged such that, when viewed under visible light, a colour image, pattern, character or lines are visible, and when viewed under IR light, the false black dots of the print appear white, the true black dots appear black, and thus a black and white image is visible which differs from the colour image that is perceivable under visible light, and in that the identification or authenticity feature has, if appropriate, one or more further colour and/or luminescent prints.
  2. Identification or authenticity feature according to Claim 1, characterized in that the prints are provided on one or both sides of a carrier substrate, wherein the prints, if provided on both sides of the carrier substrate, may be complementary or may represent separate defined patterns, images, lines, characters and the like.
  3. Identification or authenticity feature according to either of Claims 1 and 2, characterized in that the additional colour prints can be provided on one or both sides of the carrier substrate.
  4. Carrier substrate, characterized in that it has at least one print, which in visible light is optically highly visible, in the form of a defined image, defined pattern, defined lines, characters and the like, wherein the defined image, the patterns, lines, characters and the like are constructed from pure cyan, magenta, yellow inks or other inks and of two different black compositions, firstly of false black comprising a mixture of cyan, magenta and yellow, or Si black or ITO black, and secondly of true black pigments such as carbon black or other inorganic pigments such as iron oxide pigments, with the colour dots and respectively the true and the false black dots being arranged such that, when viewed under visible light, a colour image, pattern, character or lines are visible, and when viewed under IR light, the false black dots of the print appear white, the true black dots appear black, and thus a black and white image is visible which differs from the colour image that is perceivable under visible light, and in that the identification or authenticity feature has, if appropriate, one or more further colour and/or luminescent prints.
  5. Security feature for data carriers, valuable documents, packaging and the like, characterized in that it has at least one print, which in visible light is optically highly visible, in the form of a defined image, defined pattern, defined lines, characters and the like, wherein the defined image, the patterns, lines, characters and the like are constructed from pure cyan, magenta, yellow inks or other inks and of two different black compositions, firstly of false black comprising a mixture of cyan, magenta and yellow, or Si black or ITO black, and secondly of true black pigments such as carbon black or other inorganic pigments such as iron oxide pigments, with the colour dots and respectively the true and the false black dots being arranged such that, when viewed under visible light, a colour image, pattern, character or lines are visible, and when viewed under IR light, the false black dots appear white, the true black dots appear black, and thus a black and white image is visible which differs from the colour image that is perceivable under visible light, and in that the identification or authenticity feature has, if appropriate, one or more further colour and/or luminescent prints.
  6. Method for producing identification and authenticity features having at least two information contents, according to one of Claims 1 to 3, characterized in that the prints are produced using an impact or non-impact printing method while maintaining precise register.
  7. Method for producing the identification and authenticity features according to the invention having at least two information contents according to one of Claims 1 to 3 in gravure printing using a cylinder or a printing plate, wherein the cylinder or the printing plate is suitable for producing register-accurate prints.
  8. Gravure printing cylinder or gravure printing plate for producing identification and authenticity features having at least two information contents according to one of Claims 1 to 3, characterized in that the printing cylinder or the printing plate is manufactured with a raster resolution of ≥ 2400 dpi.
  9. Method for directly applying the identification or authenticity feature according to one of Claims 1 to 3, characterized in that the feature is printed directly onto a metal foil, such as an Al foil, if appropriate using an adhesion promoter.
  10. Use of the identification or authenticity feature according to one of Claims 1 to 3, if appropriate after appropriate finishing preparation as a security element in data carriers, in particular valuable documents such as passports, cards, banknotes or labels, seals and the like, or as packaging material for example in the pharmaceutical and food industries, for example in the form of blister films, folding boxes, covers, film packaging and the like.
EP04822443A 2004-11-23 2004-11-23 Tamper-proof identification and authentication feature for packaging materials and security applications Not-in-force EP1814744B1 (en)

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PCT/EP2004/013270 WO2006056216A1 (en) 2004-11-23 2004-11-23 Tamper-proof identification and authentication feature for packaging materials and security applications

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EP1814744A1 EP1814744A1 (en) 2007-08-08
EP1814744B1 true EP1814744B1 (en) 2012-08-08

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