EP1527902B2 - Méthode pour la fabrication d'une bande de materiau - Google Patents

Méthode pour la fabrication d'une bande de materiau Download PDF

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Publication number
EP1527902B2
EP1527902B2 EP04024924.5A EP04024924A EP1527902B2 EP 1527902 B2 EP1527902 B2 EP 1527902B2 EP 04024924 A EP04024924 A EP 04024924A EP 1527902 B2 EP1527902 B2 EP 1527902B2
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EP
European Patent Office
Prior art keywords
lacquer
radiation
relief structure
substrate
web
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
EP04024924.5A
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German (de)
English (en)
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EP1527902A2 (fr
EP1527902B1 (fr
EP1527902A3 (fr
Inventor
Lars Hoffmann
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Giesecke and Devrient Currency Technology GmbH
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Giesecke and Devrient Currency Technology GmbH
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Application filed by Giesecke and Devrient Currency Technology GmbH filed Critical Giesecke and Devrient Currency Technology GmbH
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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
    • B42D25/30—Identification or security features, e.g. for preventing forgery
    • B42D25/328—Diffraction gratings; Holograms

Definitions

  • the present invention relates to a method and an apparatus for producing web-shaped materials with a relief structure and to methods for producing a security element and a security document.
  • Value documents such as banknotes, checks, identity cards and credit cards often have security elements with diffraction structures which have an optically variable effect. That is, as the viewing angle changes, the perceptible information and / or the color of the information changes. Since a copying machine can only reproduce the information and / or color visible under a certain viewing angle, such security elements offer a high degree of protection against counterfeiting. Due to the appealing visual effects and the high copy protection, such security elements are also widely used in the field of product security. The security elements are either applied directly to the object of value or the associated packaging.
  • the diffraction structures are usually converted into a relief structure, which is introduced into the surface of a stamping tool.
  • suitable layers can be embossed in continuous processes and thus provided with the diffraction structures.
  • the EP 1 310 381 A2 describes a method for producing such security elements with diffraction structures.
  • a film is coated with a UV-curable varnish that is pre-cured to the gel point.
  • the diffraction structure is then embossed into this precured lacquer and the lacquer is further imprinted during the embossing process by UV irradiation hardened. After the embossing process, the paint with the relief structure is subjected to a post-curing.
  • the pre-cure to the gel point ensures that the paint already has a certain strength at the time of embossing.
  • the invention is therefore based on the object to provide a method and a device that ensures a higher contour sharpness of the molded relief structure and thus allows the production of optically variable security elements with increased brilliance.
  • the relief structure is introduced into a radiation-curable lacquer layer, wherein the lacquer layer at the time of introduction has a degree of cure below the gel point.
  • the invention is based on the knowledge that below the gel point, the liquid properties of the coating predominate and thus the embossed structures can be imprinted 1: 1 without loss of acutance in the paint. This increases the brilliance of the finished product.
  • a substrate is coated at least in regions, preferably over the entire surface, with a radiation-curable coating layer.
  • the radiation-curable lacquer can be applied by any printing method, preferably screen, gravure or flexographic printing processes are used.
  • the flexographic printing process is used in particular when the radiation-curing lacquer is not applied over the entire surface but only in regions on the substrate.
  • the paint can also be carried out with other coating systems, such as roll coaters, spray nozzles or paint spray systems.
  • the thickness of the applied lacquer layer is on the order of 1 to 10 .mu.m, preferably in the range of 1 to 5 .mu.m, particularly preferably in the range of 2 to 4 .mu.m.
  • the substrate used is preferably a plastic film, in particular a transparent plastic film.
  • a particularly preferred material is polyester, but also other plastics such as PE, PP, MOPP, PPS, PGEK, PEK, PGE, PSO, PAEK, LCP, PEN, PPT, PET, PA, PC, COC, POM, ABS and PVC , can be used.
  • the thickness of the plastic film is in the order of 4 to 30 microns, preferably from 6 to 25 microns, more preferably from 12 to 23 microns.
  • This substrate can be pretreated before coating with the radiation-curing lacquer in further process steps. This can happen to be pure pretreatments, such as corona discharge, which affect the adhesion properties between substrate and paint.
  • the substrate can also be provided, at least in regions, with other coatings which also adjust the release or adhesion properties or provide the web-like material with further security features. These may be, for example, layers with luminescent and / or magnetic and / or electrical and / or optically variable and / or thermochromic properties.
  • the radiation-curing coating itself may also contain such security features.
  • the paint can also be dyed with any printing inks.
  • transparent paints are used.
  • the radiation-curing lacquer used is preferably UV-curable lacquers. But it could also be used other radiation-curing paints. It is also possible to use lacquers with a plurality of photoinitiators which trigger the polymerization process when irradiated in different wavelength ranges. This can have various advantages, as will be explained in more detail below.
  • a lacquer which can be used in the context of the process according to the invention can have, for example, the following composition: 26.5% polyester 6.6% Epoxy novolac acrylate in trimethylolpropane triacrylate / hydroxyethyl methacrylate 26.5% hexafunctional aliphatic urethane acrylate 5.31% Mixture of pentaerythritol tri- and tetracrylate 21.2% Trimethylethylolpropantriacrylat 6.6% tertiary amine 6.9% Darocure (initiator for the short-wave UV range) 0.2% BAPO (initiator for the short-wave UV range)
  • the relief structure is introduced into the lacquer layer, wherein the lacquer layer at the time of introduction substantially has a degree of cure below the gel point.
  • the lacquer layer is preferably brought into contact with a stamping tool which has the relief structure on its surface.
  • This stamping tool can be an embossing stamp of any shape.
  • an embossing cylinder is used whose entire cylinder surface is provided with the surface to be transferred relief structure.
  • the diffractive motif is provided as a so-called master structure in a nickel foil.
  • metal foils in particular nickel foils, can be produced by recombination processes and subsequent molding, preferably galvanic molding, which are seamlessly provided with the master structure over their entire surface. These metal foils are welded, for example, with a laser and form the cylinder jacket of the embossing tool, which is mounted on a clamping cylinder.
  • the lacquer layer is already pre-cured to a degree of cure below the gel point.
  • This pre-hardening takes place directly before the embossing process. That is, the coated with the paint layer substrate leaves by means of a corresponding transport system, the means for precuring and is transported by a suitably dimensioned transport path directly into the device for the embossing process. It is important that between the pre-curing process and the embossing process, the film no UV radiation or is exposed to other curing radiation in order to avoid non-reproducible, unintentional precuring of the embossing lacquer.
  • the film is guided in a light-tight shaft between commissioned work and embossing.
  • the length of the transport path should be selected such that, given the web speed, the paint has enough time to run evenly over the surface to form a homogeneously smooth paint film.
  • the pre-hardening is preferably carried out from the paint side. This makes it possible to only harden the surface of the lacquer in order to reduce the tack of the lacquer in this surface area, so that adhesion of the lacquer to the embossing tool is avoided. Since only the surface of the varnish is cured, the varnish retains its fluidity in the volume and can therefore still take over the relief structure with the necessary contour sharpness.
  • the paint is also cured during the embossing process in a so-called main curing step. That is, while the lacquer layer is in contact with the embossing tool, the lacquer layer is preferably cured through the substrate by exposure to radiation to a degree of cure> 50%, preferably between 80 and 98%.
  • the lacquer layer after introduction of the relief structure, for example by further exposure to radiation.
  • This postcuring has the advantage that reproducible coating properties are produced which facilitate the further processing of the substrate with the embossed lacquer layer and prevent blocking of the web material during winding.
  • This radiation can be any light or particle radiation. If electromagnetic radiation is used, preferably visible light or UV radiation is used. IR radiation, in particular heat radiation, however, is also possible. Suitable radiation sources are, in particular, mercury vapor lamps, also referred to as Hg lamps for short, which are distinguished by a high proportion of ultraviolet radiation. The respective required wavelength ranges can be realized by appropriate doping of the Hg lamps, for example with Ga, Fe, Ga / Pb. Depending on the paint used and its composition, however, other sources of radiation, such as fluorescent tubes or lasers, may be advantageous.
  • the radiated wavelength or the wavelength range of the radiation sources can be monitored at certain intervals or continuously, since the radiation sources age and the radiation spectrum can change.
  • the radiation sources can be equipped with reflectors, preferably parabolic or free surface reflectors.
  • the described method steps preferably take place in a continuous process.
  • transport rollers are used, which guide the web-like material continuously through the individual devices of the device.
  • the device may include other means necessary for the control and regulation of the individual process parameters.
  • it is advantageous, for example, to control the temperature of the radiation-curable varnish during the entire process in a controlled manner in order to ensure that the varnish has the optimum viscosity in every working step.
  • the device can also have other processing devices that are not directly required for the method according to the invention, but make sense in terms of further processing or the intended use of the sheet-like material.
  • the device in front of the devices essential to the invention, the device preferably has devices for surface treatment of the substrate, which determine the later adhesion or detachment properties of the lacquer. This may be a corona discharge device or, if a coating is to be applied, a printing unit or a coating device.
  • a printing unit may be arranged.
  • Such devices are particularly advantageous when placed on the introduced relief structure more preferably partial coatings are to be applied.
  • a soluble printing ink in the form of a pattern can be printed in register with the relief structure.
  • This soluble ink can be dissolved and removed after the full surface metallization of the sheet material. Since the overlying thin metal layer is also removed, noticeable recesses in the form of the previously applied with the soluble ink patterns that serve as additional security feature arise in the metal layer.
  • the relief structures according to the invention are preferably diffraction structures.
  • the web-like material is provided with a metal layer or a dielectric layer over the whole area or in regions after the introduction of the relief structure.
  • security features can be applied to the web-shaped material.
  • the sheet material can then be used to make security items for any valuables, such as banknotes, ID documents, passports, ID or credit cards, or any product security product.
  • the layer sequence of the security element is prepared on the substrate in the reverse order, as it later comes to rest on the valuable article to be secured, and subsequently into the desired one by means of an adhesive or lacquer layer Transfer outlines to the object of value.
  • the outline shape is defined by the shape of the applied adhesive or lacquer layer or a preferably heated transfer punch.
  • hot stamping processes only a part of the adhesive layer is activated by means of the transfer punch and thus anchored to the object of value. The remaining sheet material can then be easily removed.
  • the substrate can also be removed after the transfer from the layer structure of the security element or remain as a protective layer as an integral part of the security element on the layer structure.
  • the individual security elements may be on the substrate as separate individual elements be prepared in the outline to be transmitted. Alternatively, the layer sequence of the security elements is provided in continuous form on the substrate.
  • the web-like material is used as label material or security thread material, then a firm bond between the substrate and the layer structure of the security element applied thereon must be provided.
  • the web-shaped material is cut in this case in threads or desired security elements of any outline shape and applied to the object to be secured, preferably glued.
  • the security threads are usually at least partially embedded in a security paper during papermaking.
  • FIGS. show only schematically the essential aspects and do not represent a detailed illustration.
  • Fig. 1 shows the embodiment of a method not according to the invention.
  • a transparent plastic film is used as the substrate 1, to which a radiation-curable paint 2 is at least partially applied by means of a Lack Huaweiswerks 3, here a printing unit.
  • the still moist uncured paint 2 is transported via a transport system 4 to a corresponding embossing unit 5.
  • the embossing unit 5 consists essentially of an embossing cylinder 6, on the surface of which the relief structure 7 to be transferred is arranged.
  • the lacquer 2 is brought into contact with the embossing cylinder 5, the relief structure 7 is transferred into the lacquer 2.
  • a hardening device 8 which has at least one radiation source 9, is located in the immediate vicinity of the embossing unit 5.
  • This radiation source 9 irradiates the paint 2 through the substrate 1, which must be at least partially transparent to this radiation.
  • the radiation of the radiation source 9 cures the paint during the embossing process to a degree of cure of> 50%, preferably between 80 and 98%. This process forms the main hardening of the paint 2.
  • the embossing into the still wet lacquer layer 2 gives an excellent embossing quality, since the fine relief structures 7 of the embossing tool 6 are imaged 100%.
  • the paint after the embossing process is still soft, so that the relief structure 7 can be damaged during transport by subsequent devices of the device.
  • the embossed paint surface comes in the course of processing again and again with transport rollers and similar devices of the device in contact, which can impress the soft paint surface. Since this leads to a visible loss of brilliance on the finished product or security element, the lacquer 2 after the embossing process in a further curing device 10, preferably a further radiation source 11, post-cured. This is preferably arranged on the embossed lacquer side of the substrate 1, so that the embossed lacquer layer 2 is exposed to the corresponding radiation unhindered.
  • This method is particularly suitable for web-shaped materials in which the substrate 1 should have a good adhesion to the layer structure applied thereto. This is the case in particular with label materials and security threads. Because in this case, the paint 2 has a greater adhesion to the substrate 1 as the embossing tool 6, so that the risk of paint deposition on the embossing tool 6 is relatively low.
  • the same radiation sources can be used.
  • the radiation sources used are preferably UV lamps.
  • the paint 2 contains two different photoinitiators.
  • the first photoinitiator responds to the radiation of the radiation sources 9 during the main curing of the lacquer 2 and there initiates the polymerization of the lacquer 2.
  • the second photoinitiator responds only to radiation of the radiation source 11 which is used for the after-hardening of the lacquer 2.
  • the first photoinitiator may be especially sensitive to emission bands in the visible range, for example by emitting Ga or Fe doped Hg lamps.
  • the second photoinitiator for example, can react to UV radiation with a short wavelength, so that a radiation source with a corresponding emission band is selected for the radiation source 11 in the post-curing device.
  • Fig. 2 shows an embodiment of the method and the device for carrying out the method according to the invention.
  • the method and the apparatus shown here are largely identical to that in FIG Fig. 1 already explained method steps or facilities.
  • the method differs only in that a pre-hardening device 12 is arranged in front of the embossing unit 5, which preferably has at least one radiation source 13.
  • a post-curing device 10 is dispensed with.
  • This pre-hardening device 12 is located directly in front of the embossing unit 5, so that the pre-hardened lacquer layer 2 is transported into the embossing unit 5 in direct connection to the pre-hardening device 12.
  • the pre-hardening device 12 is preferably arranged on the side of the substrate 1 coated with varnish, so that the radiation of the radiation source 13 hits the varnish unhindered. This has the advantage that for the radiation source 13 and radiation sources can be used, the radiation from the substrate 1 would be absorbed.
  • the lacquer layer 2 is pre-cured to a degree of cure below the gel point.
  • the paint surface is purposefully hardened by the pre-hardening process, so that it loses its stickiness. This has the advantage that the paint 2 does not adhere to the embossing cylinder 6.
  • the varnish 2 is still so soft in volume that the relief structure 7 can be transferred unimpeded 1: 1 into the varnish 2.
  • the paint 2 may contain corresponding photoinitiators, which are adapted to the particular radiation of the radiation sources 13 and 9 used.
  • Fig. 3 shows a further embodiment of the invention. It represents a combination of in the Fig. 1 and 2
  • the paint is both pre- and post-cured. This has the advantage that the tackiness of the paint can be reduced by pre-curing in order to avoid contamination of the embossing cylinder 6.
  • the post-curing device 10 By post-curing in the post-curing device 10, the relief structure 7 is stabilized in the paint 2.
  • the post-curing process produces reproducible coating properties that are necessary for further processing of the film, such as another printing process.
  • the post-curing also prevents blocking of the web-like material during winding.
  • the post-curing device 10 is equipped with a heat radiator.

Claims (30)

  1. Procédé de fabrication de matériaux en bande ayant une structure en relief (7), comprenant les étapes suivantes :
    - au moins en certaines zones, revêtement d'un substrat (1) avec une couche de vernis durcissable par rayonnement ;
    - insertion de la structure en relief (7) dans la couche de vernis au moyen d'un appareil de gaufrage (6) dont la surface comporte la structure en relief (7) et qui est mis en contact avec la couche de vernis, la couche de vernis présentant, au moment de l'insertion, essentiellement un degré de durcissement situé en-dessous du point de gélification, et que la couche de vernis, avant l'insertion de la structure en relief (7), est pré-durcie à un degré de durcissement situé en-dessous du point de gélification.
  2. Procédé selon la revendication 1, caractérisé en ce que, en tant qu'outil de gaufrage (6), c'est un cylindre de gaufrage qui est utilisé.
  3. Procédé selon la revendication 1, caractérisé en ce que le pré-durcissement a lieu juste avant l'insertion de la structure en relief (7).
  4. Procédé selon la revendication 3, caractérisé en ce que le pré-durcissement a lieu depuis le côté du vernis.
  5. Procédé selon au moins une des revendications de 1 à 4, caractérisé en ce qu'un vernis (2) est utilisé, lequel contient au moins deux photo-initiateurs.
  6. Procédé selon au moins une des revendications de 1 à 5, caractérisé en ce qu'un vernis (2) durcissable aux UV est utilisé.
  7. Procédé selon au moins une des revendications de 1 à 6, caractérisé en ce que le procédé comprend une étape de durcissement principal lors de laquelle la couche de vernis est, durant l'insertion de la structure en relief (7), durcie par irradiation.
  8. Procédé selon au moins une des revendications de 1 à 7, caractérisé en ce que la couche de vernis est, durant le durcissement principal, durcie à un degré de durcissement >50%, de préférence situé entre 80 et 98%.
  9. Procédé selon au moins une des revendications de 1 à 8, caractérisé en ce que le durcissement principal a lieu à travers le substrat (1).
  10. Procédé selon au moins une des revendications de 1 à 9, caractérisé en ce que, durant le pré-durcissement, la surface du vernis (2) est soumise à un début de durcissement.
  11. Procédé selon au moins une des revendications de 1 à 10, caractérisé en ce que la couche de vernis est, après l'insertion de la structure en relief (7), soumise à un durcissement complémentaire par irradiation.
  12. Procédé selon au moins une des revendications de 7 à 11, caractérisé en ce que toutes les étapes de durcissement ont lieu par le même rayonnement, de préférence par rayonnement d'électrons ou de UV.
  13. Procédé selon au moins une des revendications de 7 à 11, caractérisé en ce que, pour les différentes étapes de durcissement, différents rayonnements sont utilisés.
  14. Procédé selon au moins une des revendications de 1 à 13, caractérisé en ce que la structure en relief (7) représente une structure de diffraction.
  15. Procédé selon au moins une des revendications de 1 à 15, caractérisé en ce que, en tant que substrat (1), c'est un film plastique de préférence transparent qui est utilisé.
  16. Procédé selon au moins une des revendications de 1 à 15, caractérisé en ce que, en tant que substrat (1), c'est un film plastique d'une épaisseur située entre 10 et 30 µm, de préférence entre 12 et 23 µm, qui est utilisé.
  17. Procédé selon au moins une des revendications de 1 à 15, caractérisé en ce que le substrat (1) absorbe du rayonnement UV de la plage des ondes courtes jusqu'à 400 nm.
  18. Procédé selon au moins une des revendications de 1 à 17, caractérisé en ce que le substrat (1) est, avant l'application de la couche de vernis, pré-traité afin de configurer les propriétés de décollement ou d'adhérence (1).
  19. Procédé selon au moins une des revendications de 1 à 18, caractérisé en ce que le matériau en bande est, après l'insertion de la structure en relief (7), pourvu, sur toute sa surface ou en certaines zones, d'une couche métallique ou d'une couche diélectrique.
  20. Procédé selon au moins une des revendications de 1 à 19, caractérisé en ce que le matériau en bande est pourvu d'autres caractéristiques de sécurité supplémentaires.
  21. Procédé selon au moins une des revendications de 1 à 20, caractérisé en ce que le matériau en bande est fabriqué sous forme d'un matériau de transfert, d'un matériau pour étiquettes ou d'un matériau pour fil de sécurité.
  22. Procédé de fabrication d'un élément de sécurité, caractérisé en ce qu'il comprend la fabrication d'un matériau en bande selon une des revendications de 1 à 21.
  23. Procédé de fabrication d'un document de sécurité, caractérisé en ce qu'il comprend la fabrication d'un élément de sécurité selon la revendication 22.
  24. Dispositif destiné à la fabrication de matériaux en bande ayant une structure en relief (7) telle qu'une structure de diffraction, comprenant un équipement (3) destiné à l'application d'un vernis (2) sur un substrat (1), un équipement (12) destiné au pré-durcissement du vernis (2) à un degré de durcissement situé en-dessous du point de gélification, et un appareil de gaufrage (5) destiné à l'insertion de la structure en relief (7) dans le vernis (2), caractérisé en ce que l'équipement (12) destiné au pré-durcissement du vernis est agencé juste devant l'appareil de gaufrage (5) et que les matériaux en bande sont, entre l'équipement (3) destiné à l'application d'un vernis et l'appareil de gaufrage (5), acheminés dans un canal étanche à la lumière, de telle sorte que le vernis (2) n'est, entre le pré-durcissement et l'insertion de la structure en relief (7), exposé à aucun rayonnement durcissant.
  25. Dispositif selon la revendication 24, caractérisé en ce que l'appareil de gaufrage (5) comporte un cylindre de gaufrage (6).
  26. Dispositif selon au moins une des revendications 24 ou 25, caractérisé en ce que le dispositif comporte un équipement (8) destiné au durcissement principal du vernis (2).
  27. Dispositif selon la revendication 26, caractérisé en ce que l'équipement (8) destiné au durcissement principal est agencé dans l'appareil de gaufrage (5), de telle sorte que le durcissement principal a lieu durant le processus de gaufrage.
  28. Dispositif selon au moins une des revendications de 24 à 27, caractérisé en ce que l'équipement (12) destiné au pré-durcissement et l'équipement (8) destiné au durcissement principal sont agencés sur des côtés opposés du substrat (1) revêtu de vernis (2).
  29. Dispositif selon au moins une des revendications de 24 à 28, caractérisé en ce que l'équipement (12; 8) destiné au pré-durcissement et/ou au durcissement principal est une source de rayonnement (13; 9).
  30. Dispositif selon la revendication 29, caractérisé en ce que , comme source de rayonnement (13; 9), c'est un faisceau d'électrons, un laser, un tube fluorescent, une lampe à vapeur de mercure ou une lampe Hg dopée, de préférence une lampe Hg dopée Ga, Fe ou Ga/Pb qui est utilisé(e).
EP04024924.5A 2003-10-27 2004-10-20 Méthode pour la fabrication d'une bande de materiau Not-in-force EP1527902B2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10350212A DE10350212A1 (de) 2003-10-27 2003-10-27 Verfahren zur Herstellung bahnförmiger Materialien
DE10350212 2003-10-27

Publications (4)

Publication Number Publication Date
EP1527902A2 EP1527902A2 (fr) 2005-05-04
EP1527902A3 EP1527902A3 (fr) 2011-08-31
EP1527902B1 EP1527902B1 (fr) 2015-03-25
EP1527902B2 true EP1527902B2 (fr) 2018-11-14

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DE (1) DE10350212A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006032679A1 (de) * 2006-07-13 2008-01-17 Giesecke & Devrient Gmbh Verfahren zur Herstellung eines Sicherheitselements
US8740253B2 (en) * 2006-09-15 2014-06-03 Innovia Security Pty Ltd Radiation curable embossed ink security devices for security documents
EP2117847B1 (fr) * 2006-12-14 2018-07-25 Colgate-Palmolive Company Image d'emballage faisant apparaître un hologramme
DE102007025667A1 (de) * 2007-06-01 2008-12-04 Giesecke & Devrient Gmbh Endlosmaterial für Sicherheitselemente
DE102010031923A1 (de) 2010-07-22 2012-01-26 Giesecke & Devrient Gmbh Sicherheitsfaden für Datenträger sowie Datenträger und deren Herstellung
US8993219B2 (en) 2011-06-21 2015-03-31 Basf Se Printing diffraction gratings on paper and board

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US4294782A (en) † 1979-04-10 1981-10-13 Jerome Bauer Method for substantially instantaneous liquid molding of an article
EP0210620A2 (fr) † 1985-07-31 1987-02-04 Leonhard Kurz Gmbh & Co. Procédé de fabrication de feuilles avec une couche de vernis texturé
US4758296A (en) † 1983-06-20 1988-07-19 Mcgrew Stephen P Method of fabricating surface relief holograms
US4840757A (en) † 1987-05-19 1989-06-20 S. D. Warren Company Replicating process for interference patterns
EP0338378A2 (fr) † 1988-04-18 1989-10-25 American Bank Note Holographics, Inc. Procédé combiné pour l'impression et la formation d'un hologramme
WO1993006508A1 (fr) † 1991-09-13 1993-04-01 Institut für Neue Materialien Gemeinnützige GmbH Elements optiques et procede pour leur fabrication
US5330799A (en) † 1992-09-15 1994-07-19 The Phscologram Venture, Inc. Press polymerization of lenticular images
CA2155850A1 (fr) † 1991-09-30 1994-08-18 Johannes Matthiesen Methode et dispositif de production d'hologrammes et de reseaux de diffraction sur des supports divers
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WO2001047717A1 (fr) † 1999-12-23 2001-07-05 Perstorp Flooring Ab Procede de realisation d'un decor sur des elements de surface
DE10030015A1 (de) † 2000-06-17 2002-01-24 Micro Resist Technology Gmbh Härtbare Materialien zur Erzeugung von Nanostrukturen in dünner Schicht durch Nanoimprintlithographie

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AT502139A1 (de) 2001-11-09 2007-01-15 Hueck Folien Gmbh Bahnförmige materialien mit oberflächenstruktur, verfahren zu deren herstellung und deren verwendung

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US4294782A (en) † 1979-04-10 1981-10-13 Jerome Bauer Method for substantially instantaneous liquid molding of an article
US4758296A (en) † 1983-06-20 1988-07-19 Mcgrew Stephen P Method of fabricating surface relief holograms
EP0210620A2 (fr) † 1985-07-31 1987-02-04 Leonhard Kurz Gmbh & Co. Procédé de fabrication de feuilles avec une couche de vernis texturé
US4840757A (en) † 1987-05-19 1989-06-20 S. D. Warren Company Replicating process for interference patterns
EP0338378A2 (fr) † 1988-04-18 1989-10-25 American Bank Note Holographics, Inc. Procédé combiné pour l'impression et la formation d'un hologramme
WO1993006508A1 (fr) † 1991-09-13 1993-04-01 Institut für Neue Materialien Gemeinnützige GmbH Elements optiques et procede pour leur fabrication
CA2155850A1 (fr) † 1991-09-30 1994-08-18 Johannes Matthiesen Methode et dispositif de production d'hologrammes et de reseaux de diffraction sur des supports divers
US5330799A (en) † 1992-09-15 1994-07-19 The Phscologram Venture, Inc. Press polymerization of lenticular images
US5591527A (en) † 1994-11-02 1997-01-07 Minnesota Mining And Manufacturing Company Optical security articles and methods for making same
WO2001047717A1 (fr) † 1999-12-23 2001-07-05 Perstorp Flooring Ab Procede de realisation d'un decor sur des elements de surface
DE10030015A1 (de) † 2000-06-17 2002-01-24 Micro Resist Technology Gmbh Härtbare Materialien zur Erzeugung von Nanostrukturen in dünner Schicht durch Nanoimprintlithographie

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DE10350212A1 (de) 2005-05-25
EP1527902A2 (fr) 2005-05-04
EP1527902B1 (fr) 2015-03-25
EP1527902A3 (fr) 2011-08-31

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