EP0768957B2 - Feuille grainee, notamment feuille grainee a chaud comportant des elements de decoration ou de securite - Google Patents

Feuille grainee, notamment feuille grainee a chaud comportant des elements de decoration ou de securite Download PDF

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Publication number
EP0768957B2
EP0768957B2 EP95921699A EP95921699A EP0768957B2 EP 0768957 B2 EP0768957 B2 EP 0768957B2 EP 95921699 A EP95921699 A EP 95921699A EP 95921699 A EP95921699 A EP 95921699A EP 0768957 B2 EP0768957 B2 EP 0768957B2
Authority
EP
European Patent Office
Prior art keywords
layer
decorative
adhesive layer
transfer
areas
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.)
Expired - Lifetime
Application number
EP95921699A
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German (de)
English (en)
Other versions
EP0768957B1 (fr
EP0768957A1 (fr
Inventor
Joachim Süss
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.)
Leonhard Kurz Stiftung and Co KG
Original Assignee
Leonhard Kurz GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
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Application filed by Leonhard Kurz GmbH and Co KG filed Critical Leonhard Kurz GmbH and Co KG
Publication of EP0768957A1 publication Critical patent/EP0768957A1/fr
Application granted granted Critical
Publication of EP0768957B1 publication Critical patent/EP0768957B1/fr
Publication of EP0768957B2 publication Critical patent/EP0768957B2/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • B41M1/24—Inking and printing with a printer's forme combined with embossing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44C—PRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
    • B44C1/00—Processes, not specifically provided for elsewhere, for producing decorative surface effects
    • B44C1/16—Processes, not specifically provided for elsewhere, for producing decorative surface effects for applying transfer pictures or the like
    • B44C1/165—Processes, not specifically provided for elsewhere, for producing decorative surface effects for applying transfer pictures or the like for decalcomanias; sheet material therefor
    • B44C1/17—Dry transfer
    • B44C1/1712—Decalcomanias applied under heat and pressure, e.g. provided with a heat activable adhesive
    • B44C1/1729—Hot stamping techniques
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S428/00—Stock material or miscellaneous articles
    • Y10S428/913—Material designed to be responsive to temperature, light, moisture
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/16—Two dimensionally sectional layer
    • Y10T428/162—Transparent or translucent layer or section
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24479—Structurally defined web or sheet [e.g., overall dimension, etc.] including variation in thickness
    • Y10T428/24612—Composite web or sheet
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24802—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24802—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.]
    • Y10T428/24851—Intermediate layer is discontinuous or differential
    • Y10T428/24868—Translucent outer layer
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24802—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.]
    • Y10T428/24917—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.] including metal layer
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/25—Web or sheet containing structurally defined element or component and including a second component containing structurally defined particles
    • Y10T428/254—Polymeric or resinous material
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/26—Web or sheet containing structurally defined element or component, the element or component having a specified physical dimension
    • Y10T428/269—Web or sheet containing structurally defined element or component, the element or component having a specified physical dimension including synthetic resin or polymer layer or component
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/28—Web or sheet containing structurally defined element or component and having an adhesive outermost layer
    • Y10T428/2804—Next to metal
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/28—Web or sheet containing structurally defined element or component and having an adhesive outermost layer
    • Y10T428/2839—Web or sheet containing structurally defined element or component and having an adhesive outermost layer with release or antistick coating
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31551—Of polyamidoester [polyurethane, polyisocyanate, polycarbamate, etc.]
    • Y10T428/31565—Next to polyester [polyethylene terephthalate, etc.]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31786—Of polyester [e.g., alkyd, etc.]

Definitions

  • the invention relates to an embossing film, in particular hot stamping film, consisting of a carrier film and a transfer layer which can be detached therefrom and which, starting from the carrier film, is at least a transparent one Protective lacquer layer, comprising a decorative or securing element formed by at least one layer Decorative layer structure and an adhesive layer used to determine the transfer position on a substrate has, wherein a release layer is provided between the carrier film and the transfer layer.
  • stamping foils in particular hot stamping foils
  • the transfer layer is exposed to heat and pressure from the carrier film transferred to a substrate on which the corresponding transfer layer by means of the adhesive layer, which is in the is generally a hot glue or a radiation-curable glue.
  • the transfer layer should not be transferred to the substrate over the entire area but only certain areas of the transfer layer, for example decorative elements that are in the transfer layer are produced in a manner known per se by means of printing processes etc.
  • securing elements for example to securities such as banknotes, credit cards, ID cards etc. or other Securing objects are also used to a large extent in hot stamping foils. It is important that only the respective securing element or the area of the transmission position corresponding to the securing element detached from the carrier film and fixed on the substrate.
  • Another disadvantage is that generally tearing transfer layers along the edge of the stamp are not mechanically resistant, which e.g. for a security element, but also for a decorative element, means that when using the corresponding object it is often after a very short time is destroyed as a result of mechanical influences.
  • the invention is therefore based on the object of designing an embossing film, in particular hot stamping film, in such a way that that without special measures, a precise registration of individual areas of the transmission situation is possible in the form of decorative or securing elements on a substrate, being used for transfer no specially shaped stamps are required on the substrate, but instead rolls or rollers are used, for example can be.
  • the transmission position much more stable and thus mechanically more stable.
  • an embossing foil in particular hot stamping foil, is proposed according to the invention of the type mentioned at the beginning train according to claim 1.
  • an embossing film for transferring a decoration onto a substrate in which one is provided on a separate carrier film provided adhesive layer. Because the transfer layer and the adhesive layer are arranged on two different carrier foils, the exact transfer of individual elements from the Transfer situation only possible to a limited extent, since the transfer must take place in two steps, firstly the transfer of the Adhesive layer and secondly the transfer of the transfer layer.
  • a transfer film is also known from EP 0 413 819, in which in particular a metallic gloss Pattern is transferred to a substrate, the shape of this pattern being determined by the shape of the adhesive layer because the transfer layer and thus the metal layer is only transferred to the substrate at the points, on which an adhesive layer is provided.
  • An embodiment of a transfer film is disclosed in which the adhesive layer and the overlying metal layer correspond to each other. This is made possible in a complex process in which a metal layer is first applied over the entire surface to a corresponding base, the following is provided with an adhesive layer in a predetermined pattern. In a further step it will not metal layer covered by the adhesive layer is removed with an acidic or alkaline etching solution. In the known transfer film, the release layer has the entire surface intended.
  • the adhesive layer and the release layer ensures that the transfer layer only where there is an adhesive layer on the Substrate adheres. It is therefore irrelevant whether there is any pressure on the transfer layer outside of the adhesive layer is exercised. Nevertheless, only the area of the transfer layer that corresponds to the adhesive layer on the Stick substrate. This means that the application of the transfer layer to the substrate is largely independent is of the shape of the tool used for pressing or, if necessary, heating.
  • a decoration or the like in some areas. of a substrate in a continuous process e.g. by means of rollers or rollers.
  • Embossing foil according to the invention can also be seen in the fact that the areas match perfectly existing adhesive layer achieved with the areas of the transfer layer to be transferred without difficulty can be, because usually both the various layers of the transfer layer and the adhesive layer in be applied using a printing process. As is well known, the perfect alignment of various, superimposed layers no difficulties.
  • Another advantage of the procedure according to the invention is that embossing foils according to the invention also for substrates with a very rough surface, for example Paper with excellent adhesion and physico-chemical resistance can be produced.
  • embossing film according to the invention thus offers both considerable advantages over what has been customary up to now Advantages with regard to the tools that can be used for transferring to the substrate, and above all with regard to the accuracy in the delimitation of the areas of the transfer layer to be applied to the substrate.
  • the embossing film according to the invention with the only partially provided adhesive layer in one Many cases the use of mechanically much more stable layers for the transfer layer. Self if in such a case during the transfer the limitation of the area applied to the substrate the transfer layer is not clean, can very easily in a further operation possibly over the adhesive layer protruding transfer layer material are removed, because in the area of the adhesive layer Transfer layer adheres very firmly to the substrate.
  • the release layer is only provided in regions and in register with the adhesive layer, causes the transfer layer in the areas where there is no peel layer is present, these areas coinciding with the areas where no adhesive layer is provided, comparatively adheres firmly to the carrier film, whereby the tearing off or the separation of the transfer layer along the Edge of the area to be transferred is supported.
  • the protective lacquer layer can be formed by a lacquer on the Backing film adheres well outside the areas covered by the release layer, a measure that is also a supports clean separation along the edge of the areas of the transfer layer to be transferred.
  • the arrangement of the spatial structures in register with the adhesive layer ensures a perfect fit Alignment and clean delimitation of the spatial structures is achieved and this especially in the Do not fray the area of its edge, which may have given the entire appearance of a securing element as well as further processing, e.g. Printing of the value document could be affected.
  • the spatial ones can be used in a manner known per se Structured side of the protective lacquer layer have a coating whose optical properties differ differ from those of the protective lacquer layer, the coating being in particular of a reflective one Material, preferably metal, is formed.
  • the spatial structures are generally arranged in register with the adhesive layer are, it is particularly advantageous if the coating is carried out over the entire surface, and this is because coatings Apply much easier over the entire surface and above all without additional measures or work steps to let. Nevertheless, the full-surface coating usually does not interfere because of the layer thickness of such coatings are so small that they are easily transferred along the edge of the adhesive layer when transferred to the substrate supporting areas tear.
  • the coating can be used for particularly high quality films can also be partially and in register with the spatial structure, in order to create a particularly clean boundary to reach the transferred layers.
  • the release layer to cover the areas of the adhesive layer and / or the decorative or securing elements protrude on all sides by at least 0.2 mm.
  • the protective lacquer layer and the release layer over the decorative or securing elements and at the same time over the adhesive layer offers the advantage that the protective roof layer closely follows the edge during the transfer process Substrate is applied, with the protruding area of the protective lacquer layer generally also working perfectly on Substrate adheres because the adhesive layer, due to its thickness, even if it is only small, nevertheless during the transfer process pressed together and thus pressed outwards in the direction of the edge of the protective lacquer layer.
  • the hot stamping foil according to the exemplary embodiment comprises a carrier film 1, for example a polyester film with a thickness of approx. 20 ⁇ m.
  • a release layer 2 is applied in a layer thickness of approximately 0.01 to 0.1 ⁇ m.
  • the protective lacquer layer 3 has a layer thickness of 0 8 to 2.5 microns, preferably from 1.2 to 1.7 microns.
  • the transparent protective lacquer layer is used to form securing elements, but possibly only to form decorative elements in the for transfer to the substrate certain areas with a diffraction-optically effective spatial structure 4, where the spatial structures 4 by corresponding replication or embossing by means of a corresponding master on the surface 5 of the protective lacquer layer facing away from the carrier film 1.
  • the Protective lacquer layer 3 and the corresponding introduction of the spatial structures 4 the entire free surface of the partially finished stamping film is provided with a coating 6, preferably a suitable, reflective one Metal is evaporated in a vacuum.
  • the thickness of the coating 6 depends on the material used for this is used. If it is metal, it is on the order of a few nm, namely 5 - 50 nm (50-500 ⁇ ), preferably 10-20 nm (100-200 ⁇ ).
  • the coating 6 can also, for example, from one Dielectric be formed which 3 different optical properties compared to the material of the protective lacquer layer has. Depending on the type of material, the layer thickness of the coating 6 may well be be much larger.
  • the top layer (in the drawing) of the hot stamping foil of the exemplary embodiment only forms one regionally applied adhesive layer 7, the adhesive layer 7 being provided essentially only in the regions is in which decorative or securing elements, so in the embodiment shown, the spatial Structures 4, are present.
  • the adhesive layer 7 is usually in a layer thickness of 3.0 to 10.0 microns, preferably 4.0 to 6.0 ⁇ m.
  • the release layer 2 is only applied in some areas, specifically in the Areas in which the spatial structure 4 to form the decorative or securing elements on the protective lacquer layer 3 and the adhesive layer 7 are provided.
  • the figure shows that the release layer 2 the spatial Structure 4 or the adhesive layer 7 by a dimension a, which should be at least 0.2 mm, on all sides.
  • the hot stamping foils according to the exemplary embodiment are produced per se from the manufacture of hot stamping foils in a known manner such that the release layer 2 and the protective lacquer layer on the carrier film 1 3 are applied in a printing process with the appropriate layer thickness or distribution.
  • the protective lacquer layer 3 is either thermoplastic or consists of a lacquer that only under the influence of certain radiation or after fully cures after a certain time after networking.
  • a thermoplastic protective lacquer layer 3 spatial structure 4 embossed under the influence of heat by means of matrices known per se. If the protective lacquer layer 3 a under the influence of certain radiation, e.g. of UV radiation, or hardening after a certain time Is lacquer layer, one brings the spatial structure 4 in a replication process in the surface 5 of the Protective lacquer layer 3 as long as the lacquer forming layer 3 has not yet fully hardened.
  • the film thus partially completed is then provided with the coating 6, for example aluminum in appropriate thickness evaporated in vacuo.
  • the coating 6 can be both full and partial and be formed in register with the spatial structure 4.
  • This is then followed, again in a printing process, areas of the adhesive layer 7 applied, the registration of the adhesive layer 7 with respect to the release layer 2 or the spatial structure 4 by appropriate scanning of the already on the Carrier film 1 existing layers takes place.
  • the release layer 2, which is present in some areas is mixed with a suitable maritime pigment.
  • the stamping foils according to the invention are applied with the adhesive layer applied in regions pressed against a substrate in advance, the pressure being applied, for example, by means of a full-surface steel wheel, but can also be done with a suitable segment wheel. Under correspondingly high pressure and at a suitable one Temperature then dissolves, supported by the release layer 2, the overall transfer position designated 8, which consists at least of a protective lacquer layer 3, the coating 6 and the adhesive layer 7, of the carrier film 1. and essentially only in the areas in which an adhesive layer 7 is provided.
  • stamping foils according to the invention are not designed as hot stamping foils but for cold processing are determined, i.e. the adhesive layer is already sticky even at room temperature, there is the possibility of the carrier film 1 on the side facing away from the transfer layer 8 to be provided with a corresponding coating which adhesion of the secondary layer 7 to the carrier film 1 is prevented when the films are wound up.

Claims (7)

  1. Feuille de transfert, notamment feuille de transfert à chaud, constituée d'un film de support (1) et d'une couche à transférer (8) séparable de celui-ci et comprenant - à partir du film de support (1) - au moins une couche de vernis transparent protecteur (3), une structure de couche décorative, comportant des éléments de décoration ou de sécurité (4) formés d'au moins une couche, et une couche de substance adhésive (7) servant à la fixation de la couche à transférer sur le substrat, tandis qu'entre le film de support (1) et la couche à transférer (8), il est prévu une couche de séparation (2) qui n'est prévue que par zones et d'une manière adaptée à la couche de substance adhésive (7), laquelle n'est prévue que par zones et d'une manière adaptée aux éléments de décoration ou de sécurité (4) de la couche à transférer (8) qui ne sont réalisés que par zones, et que la couche de vernis protecteur (3) couvre le film de support (1) sur toute sa surface.
  2. Feuille de transfert suivant la revendication 1, caractérisée en ce que la couche de séparation (2) dépasse de tous les côtés, d'au moins 0,2 mm, des zones de la couche de substance adhésive (7) et ou des éléments de décoration et/ou de sécurité (4).
  3. Feuille de transfert suivant la revendication 1 ou 2, caractérisée en ce que la couche de vernis protecteur est formée d'un vernis qui adhère bien sur le film de support (1) en dehors des zones couvertes par la couche de séparation (2).
  4. Feuille de transfert suivant l'une des revendications précédentes, caractérisée en ce que les éléments de décoration ou de sécurité sont formés de structures tridimensionnelles (4) efficaces sur le plan optique de la diffraction qui sont réalisées dans la couche de vernis protecteur (3) sur la face (5) de celle-ci située à l'opposé du film de support (1) et qui sont disposées d'une manière adaptée à la couche de substance adhésive (7).
  5. Feuille de transfert suivant la revendication 4, caractérisée en ce que la face (5) de la couche de vernis protecteur (3) qui comporte les structures tridimensionnelles (4) présente un revêtement (6) dont les propriétés optiques diffèrent de celles de la couche de vemis protecteur (3).
  6. Feuille de transfert suivant la revendication 5, caractérisée en ce que le revêtement (6) est formé d'une matière réfléchissante, de préférence un métal.
  7. Feuille de transfert suivant l'une des revendications 5 ou 6, caractérisée en ce que le revêtement (6) est prévu sur toute la surface.
EP95921699A 1994-07-02 1995-06-10 Feuille grainee, notamment feuille grainee a chaud comportant des elements de decoration ou de securite Expired - Lifetime EP0768957B2 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4423291A DE4423291A1 (de) 1994-07-02 1994-07-02 Prägefolie, insbesondere Heissprägefolie mit Dekorations- oder Sicherungselementen
DE4423291 1994-07-02
PCT/DE1995/000784 WO1996001187A1 (fr) 1994-07-02 1995-06-10 Feuille grainee, notamment feuille grainee a chaud comportant des elements de decoration ou de securite

Publications (3)

Publication Number Publication Date
EP0768957A1 EP0768957A1 (fr) 1997-04-23
EP0768957B1 EP0768957B1 (fr) 1999-04-07
EP0768957B2 true EP0768957B2 (fr) 2003-11-19

Family

ID=6522137

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95921699A Expired - Lifetime EP0768957B2 (fr) 1994-07-02 1995-06-10 Feuille grainee, notamment feuille grainee a chaud comportant des elements de decoration ou de securite

Country Status (12)

Country Link
US (1) US5731064A (fr)
EP (1) EP0768957B2 (fr)
JP (1) JP3701313B2 (fr)
CN (1) CN1101757C (fr)
AT (1) ATE178537T1 (fr)
AU (1) AU694236B2 (fr)
BR (1) BR9508211A (fr)
DE (2) DE4423291A1 (fr)
ES (1) ES2130620T5 (fr)
RU (1) RU2142882C1 (fr)
TW (1) TW327363U (fr)
WO (1) WO1996001187A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102022000409A1 (de) 2022-02-03 2023-08-03 Giesecke+Devrient Currency Technology Gmbh Sicherheitselement-Transfermaterial und Verfahren zum Herstellen desselben

Families Citing this family (41)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0883499B1 (fr) * 1996-02-24 2000-06-28 Leonhard Kurz Gmbh & Co. Procede de production d' une feuille d' estampage
GB9709263D0 (en) * 1997-05-07 1997-06-25 Astor Universal Limited Laminate structure
DE19813314A1 (de) * 1998-03-26 1999-09-30 Kurz Leonhard Fa Prägefolie, insbesondere Heissprägefolie
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JP3701313B2 (ja) 2005-09-28
ATE178537T1 (de) 1999-04-15
ES2130620T5 (es) 2004-07-01
CN1101757C (zh) 2003-02-19
DE59505599D1 (de) 1999-05-12
ES2130620T3 (es) 1999-07-01
TW327363U (en) 1998-02-21
EP0768957B1 (fr) 1999-04-07
CN1151716A (zh) 1997-06-11
DE4423291A1 (de) 1996-01-11
BR9508211A (pt) 1997-12-23
AU694236B2 (en) 1998-07-16
US5731064A (en) 1998-03-24
EP0768957A1 (fr) 1997-04-23
RU2142882C1 (ru) 1999-12-20
AU2668395A (en) 1996-01-25
WO1996001187A1 (fr) 1996-01-18
JPH10508260A (ja) 1998-08-18

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