EP1384595A1 - Method for printing latent images - Google Patents

Method for printing latent images Download PDF

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Publication number
EP1384595A1
EP1384595A1 EP02102063A EP02102063A EP1384595A1 EP 1384595 A1 EP1384595 A1 EP 1384595A1 EP 02102063 A EP02102063 A EP 02102063A EP 02102063 A EP02102063 A EP 02102063A EP 1384595 A1 EP1384595 A1 EP 1384595A1
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EP
European Patent Office
Prior art keywords
printing
ink
relief
relief printing
polymerization accelerator
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
EP02102063A
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German (de)
French (fr)
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EP1384595B1 (en
EP1384595B2 (en
Inventor
François Veldeman
Marc Salade
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.)
BANQUE NATIONALE DE BELGIQUE SA
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BANQUE NATIONALE DE BELGIQUE SA
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Application filed by BANQUE NATIONALE DE BELGIQUE SA filed Critical BANQUE NATIONALE DE BELGIQUE SA
Priority to AT02102063T priority Critical patent/ATE267711T1/en
Priority to EP02102063A priority patent/EP1384595B2/en
Priority to ES02102063T priority patent/ES2218507T5/en
Priority to DE60200552T priority patent/DE60200552T3/en
Publication of EP1384595A1 publication Critical patent/EP1384595A1/en
Publication of EP1384595B1 publication Critical patent/EP1384595B1/en
Application granted granted Critical
Publication of EP1384595B2 publication Critical patent/EP1384595B2/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M3/00—Printing processes to produce particular kinds of printed work, e.g. patterns
    • B41M3/06—Veined printings; Fluorescent printings; Stereoscopic images; Imitated patterns, e.g. tissues, textiles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M1/00—Inking and printing with a printer's forme
    • B41M1/10—Intaglio printing ; Gravure printing
    • 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
    • B41M3/148—Transitory images, i.e. images only visible from certain viewing angles

Definitions

  • the invention relates to methods for preventing fraudulent reproduction of authentic documents, such as as identity documents, banknotes, credit cards credit, etc.
  • the invention relates more particularly affixing a "latent image" to the surface of such documents.
  • image latent an image that cannot be detected in "normal” observation conditions, ie when the document carrying such a latent image is observed at an angle perpendicular to its surface, while the latent images only appear when the document is seen from a defined angle.
  • this effect is obtained by printing of regular reliefs, obtained in particular by a structure of support in slight relief (intaglio printing).
  • the latent image appears by a simple parallax effect when the reliefs are observed from a point located near their axis of extension (or perpendicular to this one).
  • the object of the invention is that the image obtained is impossible to reproduce.
  • Another object of the invention is that the method is simple to implement.
  • the pattern includes an area including a first network of lines extending along a preferred axis and at least one second zone including a second network of lines extending along an axis different from the preferred axis, so as to produce a latent image on the document.
  • operation b can be preceded by a preliminary printing.
  • operation b can also be preceded by the affixing of a preliminary element such as a hologram.
  • the printing process is preferably selected among the following processes: screen printing, flexography, rotogravure.
  • the polymerization accelerator is activated by an energy supply by radiation electromagnetic, selected from the following: infrared, UV, microwave.
  • Fig. 1 shows how the process of the invention allows to realize a classic latent image.
  • a first pattern A consisting of spaced lines 1 is formed in relief by the method of the invention on a substrate 2.
  • the relief lines 1 extend along an axis preferential á.
  • a second pattern B, also made up of lines spaced 3 is carried on the same substrate.
  • the lines in relief 3 extend along another axis preferential â, clearly differentiated from á, or even perpendicular to this one.
  • the invention uses an ink containing, in addition to the pigments and a certain amount of solvents, polymerizable materials ("varnishes", monomers), which deposit on the appropriate substrate using a process printing allowing the transfer of a layer of ink thick and the use of large pigments.
  • the ink layer is as thin as possible, and therefore practically two-dimensional.
  • a diaper thin also generally offers the advantage of better adhesion to the support.
  • the relief patterns A and B can be made over a classic printed pattern, or even on data authenticating the document, such as an image holographic, which by its very presence (even if it is of a coarse forgery) may be sufficient for an observer careful to conclude that a document is authentic.
  • data authenticating the document such as an image holographic, which by its very presence (even if it is of a coarse forgery) may be sufficient for an observer careful to conclude that a document is authentic.
  • the method of the invention also allows a identification and authentication of the document by the touch, the relief giving the document a feeling separate touchscreen.

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  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • General Health & Medical Sciences (AREA)
  • Textile Engineering (AREA)
  • Vascular Medicine (AREA)
  • Printing Methods (AREA)
  • Credit Cards Or The Like (AREA)
  • Photosensitive Polymer And Photoresist Processing (AREA)
  • Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)

Abstract

Printing a relief pattern on a printed document comprises printing at least one pattern of axial lines with a thick layer of ink containing a polymerizable material and a polymerization accelerator, and activating the polymerization accelerator by supplying energy.

Description

Domaine de l inventionField of the invention

L invention concerne les procédés destinés à empêcher la reproduction frauduleuse de documents authentiques, tels que les pièces d'identité, billets de banque, cartes de crédit, etc.The invention relates to methods for preventing fraudulent reproduction of authentic documents, such as as identity documents, banknotes, credit cards credit, etc.

L'invention concerne plus particulièrement l'apposition d'une "image latente" à la surface de tels documents.The invention relates more particularly affixing a "latent image" to the surface of such documents.

Dans le secteur de l'imprimerie, on entend par "image latente" une image qui ne peut être détectée dans des conditions d'observation "normales", c est à dire lorsque le document portant une telle image latente est observé sous un angle perpendiculaire à sa surface, alors que les images latentes n'apparaissent que lorsque le document est vu sous un angle défini.In the printing sector, "image latent "an image that cannot be detected in "normal" observation conditions, ie when the document carrying such a latent image is observed at an angle perpendicular to its surface, while the latent images only appear when the document is seen from a defined angle.

En imprimerie, cet effet est obtenu par l impression de reliefs réguliers, obtenu notamment par une structure de support en léger relief (impression en taille douce) . L'image latente apparaít par un simple effet de parallaxe lorsque les reliefs sont observés à partir d'un point situé près de leur axe d'extension (ou perpendiculairement à celui ci).In printing, this effect is obtained by printing of regular reliefs, obtained in particular by a structure of support in slight relief (intaglio printing). The latent image appears by a simple parallax effect when the reliefs are observed from a point located near their axis of extension (or perpendicular to this one).

Un des avantages de ces images latentes est qu'il est impossible de les reproduire à partir d'une copie simple (par photocopie ou par balayage électronique) d'un document authentique.One of the advantages of these latent images is that it is impossible to reproduce them from a single copy (by photocopy or electronic scan) of a document authentic.

État de la techniqueState of the art

De nombreux procédés ont déjà vu le jour pour obtenir cet effet d'image latente. Comme signalé plus haut, on peut utiliser la taille douce (intaglio) pour marquer des reliefs sur le support du document.Many processes have already emerged to obtain this latent image effect. As mentioned above, we can use intaglio to mark reliefs on the support of the document.

US 5,199,744 décrit un procédé où les reliefs sont réalisés par embossage.US 5,199,744 describes a process where the reliefs are made by embossing.

US 5,582,103 et US 4,033,059 décrivent un procédé où un support est marqué de reliefs dont soit les parties relevées, soit les parties abaissées sont ensuite imprimées.US 5,582,103 and US 4,033,059 describe a process where a support is marked with reliefs of which either the parts then the lowered parts are then printed.

Tous ces procédés du plus simple au plus complexe présentent un désavantage du point de vue de l'aménagement du relief requis pour obtenir l'effet d'image latente. La réalisation de ce relief implique en effet au minimum une opération avec matriçage, et de surcroít un alignement parfait de l'encrage avec les reliefs produits.All these processes from the simplest to the most complex have a design disadvantage of the relief required to obtain the latent image effect. The achieving this relief indeed implies at least one operation with stamping, and in addition alignment perfect inking with the reliefs produced.

Résumé de l inventionSummary of the invention

On a cherché à réaliser un procédé permettant de réaliser les reliefs nécessaires à la production d'une image latente sur un support quelconque.We sought to carry out a process allowing realize the reliefs necessary for the production of a latent image on any support.

Le but de l'invention est que l'image obtenue soit impossible à reproduire.The object of the invention is that the image obtained is impossible to reproduce.

Un autre but de l'invention est que le procédé soit simple à mettre en uvre.Another object of the invention is that the method is simple to implement.

L objet de l invention est un procédé d impression en reliefs, entre autres pour l impression d images latentes, sur un document imprimé, qui comprend les opérations suivantes :

  • a) sélectionner un substrat
  • b) sélectionner une encre contenant un matériau polymérisable et un accélérateur de polymérisation
  • c) sélectionner un procédé d'impression permettant le transfert d'encre en couche épaisse
  • d) imprimer au moins un motif formé de lignes espacées s étendant suivant au moins un axe préférentiel avec cette encre à l'aide de ce procédé
  • e) activer l'accélérateur de polymérisation par un apport énergétique ad hoc
  • f) faire polymériser l'encre en couche épaisse
    • The object of the invention is a relief printing method, inter alia for printing latent images, on a printed document, which comprises the following operations:
  • a) select a substrate
  • b) select an ink containing a polymerizable material and a polymerization accelerator
  • c) select a printing process allowing the transfer of ink in a thick layer
  • d) printing at least one pattern formed by spaced lines extending along at least one preferential axis with this ink using this method
  • e) activate the polymerization accelerator with an ad hoc energy supply
  • f) polymerizing the ink in a thick layer

    • Suivant une forme de réalisation avantageuse, le motif comprend une zone comprenant un premier réseau de lignes s étendant suivant un axe préférentiel et au moins une deuxième zone comprenant un deuxième réseau de lignes s étendant suivant un axe différent de l axe préférentiel, de façon à produire une image latente sur le document.According to an advantageous embodiment, the pattern includes an area including a first network of lines extending along a preferred axis and at least one second zone including a second network of lines extending along an axis different from the preferred axis, so as to produce a latent image on the document.

    Dans ce procédé, l'opération b peut être précédée d une impression préliminaire. Suivant une variante de réalisation, l'opération b peut aussi être précédée de l apposition d un élément préliminaire tel qu un un hologramme.In this process, operation b can be preceded by a preliminary printing. According to a variant of realization, operation b can also be preceded by the affixing of a preliminary element such as a hologram.

    Le procédé d'impression est de préférence sélectionné parmi les procédés suivants : la sérigraphie, la flexographie, l'héliogravure.The printing process is preferably selected among the following processes: screen printing, flexography, rotogravure.

    De façon avantageuse, l'accélérateur de polymérisation est activé par un apport énergétique par rayonnement électromagnétique, sélectionné parmi les suivants : infrarouges, UV, micro ondes.Advantageously, the polymerization accelerator is activated by an energy supply by radiation electromagnetic, selected from the following: infrared, UV, microwave.

    D autres particularités et avantages de l invention ressortiront de la description ci après de modes de réalisation particuliers de l'invention, référence étant faite aux dessins annexés dans lesquels :

  • La Fig. 1 est une vue en perspective, avec dimensions exagérées, d'un substrat imprimé suivant le procédé de l'invention.
    • Other particularities and advantages of the invention will emerge from the description below of particular embodiments of the invention, reference being made to the appended drawings in which:
  • Fig. 1 is a perspective view, with exaggerated dimensions, of a substrate printed according to the method of the invention.

    • La Fig. 1 montre comment le procédé de l'invention permet de réaliser une image latente classique.Fig. 1 shows how the process of the invention allows to realize a classic latent image.

    Un premier motif A constitué de lignes espacées 1 est formé en relief par le procédé de l'invention sur un substrat 2.A first pattern A consisting of spaced lines 1 is formed in relief by the method of the invention on a substrate 2.

    Les lignes en relief 1 s'étendent suivant un axe préférentiel á.The relief lines 1 extend along an axis preferential á.

    Un deuxième motif B, également constitué de lignes espacées 3 est porté sur le même substrat.A second pattern B, also made up of lines spaced 3 is carried on the same substrate.

    Les lignes en relief 3 s'étendent suivant un autre axe préférentiel â, nettement diffirencié de á, voire perpendiculaire à celui ci.The lines in relief 3 extend along another axis preferential â, clearly differentiated from á, or even perpendicular to this one.

    Par effet de parallaxe, un observateur regardant le document suivant l'angle préférential á éprouvra l'impression que le motif A est moins dense que le motif B. L intervalle e entre deux lignes l apparaít en effet dans toute sa largeur (typiquement, l intervalle e présente une largeur de l ordre de 0,1 à 0,2 mm, du même ordre que la largeur des lignes 1 et 3), alors qu il est partiellement masqué entre les lignes 3. Le phénomène s inverse évidemment lorsque le document est regardé suivant l autre axe préférentiel â.By parallax effect, an observer looking at the document according to the preferred angle to experience the impression that pattern A is less dense than pattern B. The interval e between two lines l indeed appears in its entire width (typically, the interval e presents a width of the order of 0.1 to 0.2 mm, of the same order as the width of lines 1 and 3), while it is partially hidden between lines 3. The phenomenon is reversed obviously when the document is viewed next to the other preferential axis â.

    Pour obtenir le relief particulier du dispositif de l invention, on utilise une encre contenant, outre les pigments et une certaine quantité de solvants, des matériaux polymérisables ("vernis", monomères), que l'on dépose sur le substrat approprié en utilisant un procédé d'impression permettant le transfert d'une couche d'encre épaisse et l'utilisation de pigments de grandes dimensions. To obtain the particular relief of the The invention uses an ink containing, in addition to the pigments and a certain amount of solvents, polymerizable materials ("varnishes", monomers), which deposit on the appropriate substrate using a process printing allowing the transfer of a layer of ink thick and the use of large pigments.

    Parmi ces procédés, on peut citer, typiquement, la sérigraphie, la flexographie et l'héliogravure.Among these methods, one can typically cite the screen printing, flexography and gravure printing.

    La pratique courante en imprimerie veut que, pour tirer un maximum d'effet optique des pigments dispersés dans l'encre, la couche d'encre soit aussi mince que possible, et donc pratiquement bidimensionnelle. Une couche mince offre également, en général, l'avantage d une meilleure adhérence sur le support.Current printing practice dictates that, for get the maximum optical effect from the dispersed pigments in the ink, the ink layer is as thin as possible, and therefore practically two-dimensional. A diaper thin also generally offers the advantage of better adhesion to the support.

    Ce résultat est généralement obtenu par un séchage classique.This is usually achieved by drying classic.

    Tout à l opposé de cette pratique, dans le procédé de l'invention, on procède à un séchage bref avec apport énergétique intense, de façon à obtenir une polymérisation presque instantanée de la couche d'encre, pratiquement sans réduction de volume. En conséquence, on obtient des lignes 1,3 à extension tridimensionnelle (de l ordre d une dizaine de µm). Cet apport énergétique peut être réalisé notamment par élévation de la température, par rayonnement électromagnétique, par faisceau d électrons.Quite the opposite of this practice, in the process of the invention, a brief drying is carried out with addition intense energy, so as to obtain a polymerization almost instant ink layer, practically without volume reduction. As a result, we get lines 1.3 with three-dimensional extension (of the order of ten µm). This energy contribution can be achieved in particular by temperature rise, by radiation electromagnetic, by electron beam.

    Par ailleurs, les motifs en relief A et B peuvent être réalisés par dessus un motif imprimé classique, voire même sur une donnée authentifiant le document, comme une image holographique, qui, par sa seule présence (même s il s agit d un faux grossier) peut suffire à un observateur peu attentif à conclure à l authenticité d un document. On notera que le procédé de l invention permet également une identification et une authentification du document par le toucher, le relief conférant au document une sensation tactile distincte.Furthermore, the relief patterns A and B can be made over a classic printed pattern, or even on data authenticating the document, such as an image holographic, which by its very presence (even if it is of a coarse forgery) may be sufficient for an observer careful to conclude that a document is authentic. We note that the method of the invention also allows a identification and authentication of the document by the touch, the relief giving the document a feeling separate touchscreen.

    Claims (7)

    un procédé d impression en relief pour l impression sur un document imprimé caractérisé en ce qu il comprend les opérations suivantes : a) sélectionner un substrat (2) b) sélectionner une encre contenant un matériau polymérisable et un accélérateur de polymérisation c) sélectionner un procédé d'impression permettant le transfert d'encre en couche épaisse d) imprimer au moins un motif(A, B) formé de lignes espacées s étendant suivant au moins un axe préférentiel avec cette encre à l'aide de ce procédé e) activer l'accélérateur de polymérisation par un apport énergétique ad hoc f) faire polymériser l'encre en couche épaisse a relief printing process for printing on a printed document characterized in that it comprises the following operations: a) select a substrate (2) b) select an ink containing a polymerizable material and a polymerization accelerator c) select a printing process allowing the transfer of ink in a thick layer d) printing at least one pattern (A, B) formed of spaced lines extending along at least one preferential axis with this ink using this method e) activate the polymerization accelerator with an ad hoc energy supply f) polymerizing the ink in a thick layer un procédé d impression en relief selon la revendication 1, caractérisé en ce que le motif comprend une zone comprenant un premier réseau de lignes s étendant suivant un axe préférentiel et au moins une deuxième zone comprenant un deuxième réseau de lignes s étendant suivant un axe différent de l axe préférentiel, de façon à produire une image latente sur le documenta relief printing method according to claim 1, characterized in that the pattern comprises an area comprising a first network of lines extending along a preferred axis and at least a second area comprising a second network of lines extending along a different axis of the preferential axis, so as to produce a latent image on the document un procédé d impression en relief selon l une quelconque des revendications 1 et 2, caractérisé en ce que l'opération b est précédée d une impression préliminaire.a relief printing process according to any one of claims 1 and 2, characterized in that operation b is preceded by a preliminary printing. un procédé d impression en relief selon l une quelconque des revendications 1 et 2,caractérisé en ce que l'opération b est précédée de l apposition d un élément préliminaire.a relief printing process according to any one of claims 1 and 2, characterized in that operation b is preceded by the affixing of a preliminary element. un procédé d impression en relief selon la revendication 4, caractérisé en ce que l élément préliminaire est un hologramme. a relief printing method according to claim 4, characterized in that the preliminary element is a hologram. un procédé d impression en relief selon l une quelconque des revendications précédentes, caractérisé en ce que le procédé d'impression en couche épaisse est sélectionné parmi les procédés suivants : la sérigraphie, la flexographie, l'héliogravure.a relief printing method according to any one of the preceding claims, characterized in that the thick layer printing method is selected from the following methods: screen printing, flexography, gravure printing. un procédé d impression en relief selon l une quelconque des revendications précédentes,caractérisé en ce que l'accélérateur de polymérisation est activé par un apport énergétique par rayonnement électromagnétique, sélectionné parmi les suivants : infra rouges, UV, micro ondes.a relief printing process according to any one of the preceding claims, characterized in that the polymerization accelerator is activated by an energy supply by electromagnetic radiation, selected from the following: infrared, UV, microwave.
    EP02102063A 2002-07-26 2002-07-26 Method for printing latent images Expired - Lifetime EP1384595B2 (en)

    Priority Applications (4)

    Application Number Priority Date Filing Date Title
    AT02102063T ATE267711T1 (en) 2002-07-26 2002-07-26 METHOD FOR PRINTING LATENT IMAGES
    EP02102063A EP1384595B2 (en) 2002-07-26 2002-07-26 Method for printing latent images
    ES02102063T ES2218507T5 (en) 2002-07-26 2002-07-26 PRINTING PROCEDURE OF LATENT IMAGES.
    DE60200552T DE60200552T3 (en) 2002-07-26 2002-07-26 Procedure to print latent images

    Applications Claiming Priority (1)

    Application Number Priority Date Filing Date Title
    EP02102063A EP1384595B2 (en) 2002-07-26 2002-07-26 Method for printing latent images

    Publications (3)

    Publication Number Publication Date
    EP1384595A1 true EP1384595A1 (en) 2004-01-28
    EP1384595B1 EP1384595B1 (en) 2004-05-26
    EP1384595B2 EP1384595B2 (en) 2011-08-31

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    Family Applications (1)

    Application Number Title Priority Date Filing Date
    EP02102063A Expired - Lifetime EP1384595B2 (en) 2002-07-26 2002-07-26 Method for printing latent images

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    EP (1) EP1384595B2 (en)
    AT (1) ATE267711T1 (en)
    DE (1) DE60200552T3 (en)
    ES (1) ES2218507T5 (en)

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    WO2010100360A1 (en) 2009-03-04 2010-09-10 Oberthur Technologies Security element for a value document
    EP3109056B1 (en) 2015-06-25 2018-02-14 Hymmen GmbH Maschinen- und Anlagenbau Method and device for producing a structure on a surface
    US11141759B2 (en) 2017-06-13 2021-10-12 Hymmen GmbH Maschinen- und Anlagesbas Method and apparatus for producing a decorative surface
    US11559824B2 (en) 2019-05-03 2023-01-24 Hymmen Gmbh Maschinen-Und Anlagenbau Method for producing a structure on a surface

    Families Citing this family (1)

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    GB201117523D0 (en) 2011-10-11 2011-11-23 Rue De Int Ltd Security devices and methods of manufacture thereof

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    US6120946A (en) * 1994-10-17 2000-09-19 Corning Incorporated Method for printing a color filter
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    US4033059A (en) 1972-07-06 1977-07-05 American Bank Note Company Documents of value including intaglio printed transitory images
    US5199744A (en) 1988-09-09 1993-04-06 De La Rue Plc Security device
    US5582103A (en) 1992-06-04 1996-12-10 Director-General, Printing Bureau, Ministry Of Finance, Japan Method for making an anti-counterfeit latent image formation object for bills, credit cards, etc.
    EP0686509A1 (en) * 1994-06-08 1995-12-13 Pechiney Emballage Alimentaire Intaglio printing process using solventless inks
    US6120946A (en) * 1994-10-17 2000-09-19 Corning Incorporated Method for printing a color filter
    GB2360250A (en) * 2000-03-17 2001-09-19 Arc Screen Print Ltd Printing whereby different images are discernable at different angles of view

    Cited By (10)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    WO2010100360A1 (en) 2009-03-04 2010-09-10 Oberthur Technologies Security element for a value document
    EP3109056B1 (en) 2015-06-25 2018-02-14 Hymmen GmbH Maschinen- und Anlagenbau Method and device for producing a structure on a surface
    EP3109056B2 (en) † 2015-06-25 2023-11-29 Hymmen GmbH Maschinen- und Anlagenbau Method and device for producing a structure on a surface
    US11141759B2 (en) 2017-06-13 2021-10-12 Hymmen GmbH Maschinen- und Anlagesbas Method and apparatus for producing a decorative surface
    US11420229B2 (en) 2017-06-13 2022-08-23 Hymmen GmbH Maschinen—und Anlagenbau Method and apparatus for producing a decorative surface
    US11511318B2 (en) 2017-06-13 2022-11-29 Hymmen GmbH Maschinen- und Anlagenbau Method and apparatus for producing a decorative workpiece and workpiece
    US11717851B2 (en) 2017-06-13 2023-08-08 Hymmen GmbH Maschinen—und Anlagenbau Method and apparatus for producing a decorative workpiece and workpiece
    US11717850B2 (en) 2017-06-13 2023-08-08 Hymmen Gmbh Maschinen-Und Anlagenbau Method and apparatus for producing a decorative workpiece and workpiece
    US11883843B2 (en) 2017-06-13 2024-01-30 Hymmen Gmbh Maschinen-Und Anlagenbau Method for producing a structured surface
    US11559824B2 (en) 2019-05-03 2023-01-24 Hymmen Gmbh Maschinen-Und Anlagenbau Method for producing a structure on a surface

    Also Published As

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    DE60200552T2 (en) 2005-06-02
    ES2218507T5 (en) 2011-11-21
    ATE267711T1 (en) 2004-06-15
    DE60200552D1 (en) 2004-07-01
    EP1384595B1 (en) 2004-05-26
    ES2218507T3 (en) 2004-11-16
    DE60200552T3 (en) 2012-02-09
    EP1384595B2 (en) 2011-08-31

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