EP1068082B1 - Prägefolie, insbesondere heissprägefolie - Google Patents

Prägefolie, insbesondere heissprägefolie Download PDF

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Publication number
EP1068082B1
EP1068082B1 EP99915506A EP99915506A EP1068082B1 EP 1068082 B1 EP1068082 B1 EP 1068082B1 EP 99915506 A EP99915506 A EP 99915506A EP 99915506 A EP99915506 A EP 99915506A EP 1068082 B1 EP1068082 B1 EP 1068082B1
Authority
EP
European Patent Office
Prior art keywords
layer
decorative layer
carrier film
areas
patches
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
EP99915506A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1068082A1 (de
Inventor
Norbert Lutz
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
Application filed by Leonhard Kurz GmbH and Co KG filed Critical Leonhard Kurz GmbH and Co KG
Publication of EP1068082A1 publication Critical patent/EP1068082A1/de
Application granted granted Critical
Publication of EP1068082B1 publication Critical patent/EP1068082B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • Y10T29/00—Metal working
    • Y10T29/30—Foil or other thin sheet-metal making or treating
    • 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
    • Y10T29/00—Metal working
    • Y10T29/30—Foil or other thin sheet-metal making or treating
    • Y10T29/309—Means for opening or separating a pack
    • 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
    • Y10T428/14—Layer or component removable to expose adhesive
    • 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
    • Y10T428/14—Layer or component removable to expose adhesive
    • Y10T428/1438—Metal containing
    • 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
    • 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
    • Y10T428/24562—Interlaminar spaces
    • 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
    • Y10T428/2457—Parallel ribs and/or grooves
    • 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.]
    • Y10T428/24851—Intermediate layer is discontinuous or differential
    • Y10T428/2486—Intermediate layer is discontinuous or differential with outer strippable or release 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

Definitions

  • the invention relates to an embossing film, in particular Hot stamping foil, which has a carrier film, on the one by means of heat and / or pressure on a substrate transferable decorative layer adhering to the substrate is detachably arranged. It also deals with Manufacturing process for such stamping foils.
  • the Decor layer can be designed in different ways can.
  • the decorative layer usually consists of stamping foils but from at least one after the application of the decorative layer on the substrate forming the free outside Protective lacquer layer and others, the actual Layers forming decorative elements. Usually it is Backing film most distant layer of the decorative layer Adhesive layer, by means of which the decorative layer is then on the substrate liable.
  • Embossing foils of very special decoration have been used since some years also used to a considerable extent Valuables or documents of value, e.g. banknotes, Checks, securities, credit cards, etc., with one to provide additional security feature, which is difficult can be faked.
  • thermoplastic deformable layer in which then a structure with diffractive optics, for example a corresponding lattice structure, in the course of Manufacture of the stamping foil is replicated.
  • a structure with effective diffraction optics is as good as possible
  • the correspondingly structured surface of the deformable layer with a reflective layer which is characterized in that you Refractive index compared to that of the adjacent layer of the Decor layer differs significantly.
  • Reflection layer a generally evaporated Metal layer used.
  • stamping foils are, for example, in DE 44 23 291 A1 described as prior art.
  • the in the subsequent printing process under certain circumstances entirely can interfere significantly, taking into account that at least in the case of security elements, the decorative layer at least is metallized in some areas.
  • the flakes are particularly annoying because it causes pollution of the printing press and thus lead to unclean pressure.
  • Even the one Security element applied subsequently is yes often very finely structured. Appropriate cleaning the machine in which the Embossing process on the one hand and overprinting on the other between embossing and printing at least not possible with reasonable effort.
  • the aim of the invention is therefore an embossing foil and Propose manufacturing processes that allow to a substrate has a corresponding decorative layer in the form of to apply individual patches without fear must lead to an annoying flake formation.
  • a corresponding stamping foil should be used a very good accuracy and registration possibly existing, different layers of the Have the decor layer made.
  • Embossing foil of the type mentioned at the beginning proposed the decor layer in individual, complete from each other separate patches that can be transferred individually to a substrate is divided, with the individual patches on the Carrier film each a free space, in a particularly simple way Way in the form of a border, at least a width 1 mm, preferably at least 2 mm is present in the that originally existing in the gaps Decorative layer material is subsequently removed, so that the carrier film is exposed there.
  • embossing film is useful according to the invention manufactured so that the decorative layer on the carrier film forming materials in itself from the stamping foil manufacture are applied in a known manner such that the decorative layer everywhere over the edge of the transferable patches, and that to form the Free space for decor layer material along the entire edge each individual patch is subsequently removed.
  • the inventive or according to the inventive Embossing foil produced by the process is therefore distinguished by the fact that the exact limitation of the Patches to be transferred by a subsequent Removal of the desired patch area outgoing areas of the decorative layer is generated.
  • this has in particular the advantage that the embossing foil as used for Transfer of the decorative layer patches to the substrate is used, only there corresponding Decor layer has layers where actually one Transfer should take place. So it must be when transferring the corresponding patches of the decor layer on the substrate none Separation of the decor layer from a larger area done more. As a result, it is also impossible that the disruptive flake formation occurs. Even if when the decorative layer is subsequently removed in the area of flakes should be created, it is without further e.g. by means of a system for Known processing using laser radiation Suction device, possible, these flakes from the stamping foil to remove before the embossing foil is assembled and attached the user is shipped. Pollution of the Printing machine through appropriate flakes locked out.
  • Another advantage of the procedure according to the invention is that, under certain circumstances, eliminates registration problems can be. This applies in particular to the case that a diffractive or other structure in a layer of the decorative layer is to be replicated.
  • the removal of the decor layer material in the open spaces can done in different ways, but some Procedures are particularly useful.
  • the decorative layer Material layers to form the free spaces or one Outline along the edge of each patch strips of the decorative layer at least 1 mm wide by means of Laser radiation completely removed from the carrier film becomes.
  • the use of laser radiation for ablation has the advantage that it is possible in principle, the to produce a wide variety of geometric shapes. Furthermore, the removal by means of laser radiation is very precise and possible quickly. Finally, there is a very clean, precise edge of the patches, causing flake formation is safely prevented.
  • the laser used determines depending on it what layers are present. to It is necessary that the energy coupling Laser radiation at least partially in the material used is absorbed. If the intensities are too low Laser radiation only heats the material at higher ones In contrast, the material is melted at intensities, decomposes or evaporates. Is the stamping foil? For example, from layers of paint on polyester films are arranged as a carrier film, which in the visible and near infrared spectral range are then transparent it expedient to use such lacquer layers Excimer laser radiation because of the Property of the lacquer layers to absorb UV radiation. In contrast, are highly absorbent layers, in particular Metal layers, if present, can be done well ablate using Nd: YAG or diode lasers.
  • stamping foil on the laser radiation
  • the use of which is provided is to adapt.
  • an embossing foil can be used for this purpose
  • the carrier film is transparent
  • the decorative layer is at least one Layer of laser light used for ablation Wavelength absorbing material, for example a Metal layer or a corresponding lacquer layer, having.
  • the absorbent Materials only available in the areas to be removed have the advantage that the laser beam is not moved exactly according to the free spaces or on the Free space needs to be focused. Rather, it is possible with a larger diameter laser beam or with much lower demands on the Positioning accuracy of the laser beam to work, whereby then the exact geometry of the free spaces already through the built into the decorative layer, absorbent Layer areas is determined.
  • the absorbent materials can be in can be provided in many different ways. After Invention is proposed, for example, that the Carrier film and / or a layer adjacent to the carrier film formed by a material absorbing laser radiation are, when using a special, absorbent Layer these only in the area of the free spaces to be created could be provided. If in this case one additional layer that absorbs laser radiation to be provided is cleverly such proceeded that the carrier film is one that is used to remove the Decor layer used absorbing laser radiation Lacquer layer on which the decorative layer is detachably arranged is. In this case, the laser radiation becomes the Radiation-absorbing lacquer layer destroyed, causing at the same time the decor layer in the corresponding Areas of the carrier film is removed or released and then possibly easy in another gear can be removed accordingly.
  • the geometry of the patches is matched by appropriate geometric arrangement of absorbent layers of material
  • laser beams can larger diameter - if the required Intensity is still reached - used, being these laser beams can also be moved, however a procedure is also possible in which the Stamping foil with laser beams comparatively large Diameter, which are substantially stationary, irradiated becomes.
  • lasers are generally used for the removal of materials: laser wavelength operating mode commitment CO 2 laser 10.6 ⁇ m cw, pulse Industry TEA-CO 2 laser 10.6 ⁇ m Pulse Industry Nd: YAG laser 10.6 ⁇ m cw, pulse Industry diode laser 650 - 900 nm cw, pulse laboratory OPO systems 400 - 700 nm (variable) Pulse laboratory excimer 193, 248, 308 nm Pulse Industry
  • CO 2 and TEA-CO 2 lasers are only suitable to a limited extent for the removal of decorative layers.
  • Laser used excimer laser wavelength 248 or 308 nm Medium laser power 80 W. pulse rate 200 Hz Absorption in paint layers Yes Absorption in a metallization Yes Absorption in polyester (usual carrier film) Yes Irradiation possibility through the polyester No Relative movement between laser beam and film required No Beam tracking required with several pulses Beam position correction costly Processing time for 9 mm 2 (1 pulse) 5 ms Processing time for 100 mm 2 (5 pulses) 25 ms Processing time for a standard OVD 50 ms Adaptability to variable geometries complex, exchange of optical elements Multitrack arrangement conceivable, but expensive machining quality very clean edges
  • a slave foil used be that in one of the free spaces of the invention Embossing foil corresponding pattern with an exposed Adhesive layer is provided on the when pressing the Slave element against one with a large area Embossing foil provided with the decorative layer, the decorative layer material or the decor layer in the areas where the slave element is pressed or on the slave element the corresponding Adhesive layer is present on the slave element so firmly is liable that in the event of a subsequent separation from Stamping foil and receiving element in the areas in which the Slave element is liable, the decorative layer is taken away and thereby in the areas of the carrier film forming the free spaces the stamping foil is completely removed.
  • the idea of the invention is particularly useful then Use when embossing foils are to be created at which the decorative layer at least one thermally deformable Layer into which a diffractive optically effective, spatial structure is stamped, in this case
  • the training is expedient such that the thermal deformable layer transparent and on top of it Carrier film turned away, supporting the spatial structure Surface of a the recognizability of the spatial Structure-improving contrast layer at least is covered in areas, the contrast layer is preferably formed by a metal layer.
  • embossing foils are particularly optical variable security elements (OVDs), for example to improve the security against counterfeiting of banknotes, Securities, credit cards or checks, usable, whereby precisely because of the presence of a metal layer particularly critical flakes can arise if in the the usual OVD from a larger one Decorative layer is embossed.
  • OTDs optical variable security elements
  • FIG. 1 is an embossing film according to the Invention shown.
  • This comprises a carrier film 1, for example, a usual, about 20 microns thick Polyester film.
  • a carrier film 1 for example, a usual, about 20 microns thick Polyester film.
  • the structure (layer sequence, Materials) embossed foil decor layers known per se corresponds, arranged, with the shown Embodiment the patches 2 very simplified as Rectangles are shown.
  • patches 2 can e.g. as OVDs to secure securities, in particular Banknotes are used, for which purpose the OVDs or patches 2 then individually from the carrier film 1 under heat and / or printing or the like on the banknote paper. transfer become.
  • the structure and use correspond to Stamping foil according to the invention known per se Stamping foils, which is why there is no further explanation can be.
  • the individual patches 2 of the stamping foil are with the Embodiment of Figure 1 from each other by free spaces forming spaces 4 separated, the width of a typically 5 to 10 mm. They can also Patches of course have any desired shape, for example, be irregularly bordered or die Have the shape of an oval or circle, in which case the spaces 4 are designed accordingly irregular will be.
  • the decorative layer 3 of the Embodiment of Figure 3 essentially comprises four layers, namely a release layer 5, the is used for easy and clean removal of the Decorative layer 3 formed patches 2 from the carrier film 1 at Transferred to a substrate (not shown) guarantee.
  • a release layer 5 transparent, thermally deformable protective lacquer layer 6, the surface facing away from the carrier film 1 a spatial structure 7, for example in the form of a Diffraction grating, a hologram or the like, is provided.
  • Such spatial structures 7 cause a appropriately trained OVD depending on Viewing angle or lighting angle changing Owns appearance.
  • a contrast layer 8 which has a refractive index owns, which differs significantly from the refractive index of Protective lacquer layer 6 differs.
  • a reflective Metal layer for example by vapor deposition can be applied.
  • the decorative layer 3 comprises a last layer Adhesive layer 9, by means of which the patches 2 on the Substrate in the manner known from stamping foils be attached.
  • Adhesive layer around a heat-activated adhesive.
  • Radiation in particular UV radiation that can be activated or to provide glue that crosslinks with this radiation, possibly causing the patches 2 to adhere to the Substrate can be improved.
  • an adhesive layer 9 dispense with and instead the substrate on which the Patches 2 are to be applied accordingly with a Apply adhesive in the respective areas.
  • the decorative layer 3 can generally in that of stamping foils, especially for Security purposes, known manner can be varied, e.g. by using additional, colored, opaque or transparent layers of paint as well as before all in that the reflection layer 8 only is provided in some areas.
  • each Spaces 4 between the individual patches 2 in total are exempt from the decorative layer material 3, are in the Figure 2 shown embodiment around the individual Patches 2 around only open spaces in the form of borders 4 'in which the decorative layer 3 is removed.
  • the Edges 4 ' have a width b of at least 1 mm, preferably of at least 2 mm.
  • the free spaces 4, 4 'around the individual patches 2 can be generated in different ways. Both Embodiments of Figures 1 to 3 are through Exposure to laser radiation (schematically by the arrows 10 and dashed lines 11 indicated) generated. After this in the embodiment of Figure 3 a continuous Metal layer 8 is present, the laser radiation absorbed in a wide variety of ways or in the case of Use of excimer laser radiation also in this radiation the layers of paint is absorbed, the laser beams 10, 11 be shaped or so over the surface of the Carrier film 1 are moved that only the free spaces 4th corresponding areas are irradiated accordingly and thus heated so that only in the free spaces 4, 4 ' Decor layer 3 materials are removed.
  • the stamping foil shown in FIGS. 5a and 5b comprises also a carrier film 1. Originally (see FIG. 5a) is located on the carrier film 1 over the entire surface Decorative lacquer layer 16 and an adhesive layer 19, the together form the decorative layer 13. As a specialty in the original arrangement of the stamping foil according to 5a in the area in which the free spaces 4 there should be an additional lacquer layer 12, which is composed or structured in this way (e.g. by corresponding pigmentation) that they are incident Laser light (indicated by arrows 10) in any case absorbed while the laser light the paint layer 16 as well the adhesive layer 19, possibly only one of the two Layers, with comparatively low absorption can enforce.
  • an additional lacquer layer 12 which is composed or structured in this way (e.g. by corresponding pigmentation) that they are incident Laser light (indicated by arrows 10) in any case absorbed while the laser light the paint layer 16 as well the adhesive layer 19, possibly only one of the two Layers, with comparatively low absorption can enforce.
  • the additional, absorbent lacquer layer 12 is at Laser radiation heats up and causes the areas of the decorative lacquer layer 16 or Adhesive layer 19 are removed from the carrier film 1. This can be done in that the layer 12, for example evaporated. The arrangement according to FIG. 5b is then obtained.
  • the carrier film 1 is transparent to the laser radiation is, it is not necessary to irradiate through the Adhesive layer 19 or decorative lacquer layer 16 through make. Rather, it would also be conceivable for the radiation with laser light from the opposite side, i.e. from the free surface 14 of the carrier film, make. Hence only in the area where the additional, absorbent lacquer layer 12 is present is a corresponding influence on the decorative layer 13 take place so that they form the free spaces 4 Will get removed.
  • Corresponding free spaces 4 are generated by means of laser light can, the resulting free space only through the dashed border line 24 is indicated.
  • the stamping foil according to FIG. 6 largely corresponds to that Embossing foil according to Figure 3, but with the difference that a metallization 28 doesn't cover the whole Surface of the transparent protective lacquer layer 26 is provided, but only in individual areas, whereby but in the areas where later a free space 4, 4 ' should be present, a metallization is provided which, however, then adjoins an area 27 in which has no metallization.
  • laser light (arrows 10) that the carrier film 1 and the layers 26 and 29 are not damaged in a by the dashed lines 11 indicated beam width so that the Laser beam in the area of the free spaces 4, 4 'to be generated acts on the metallization 28, but with its lateral boundary 11 does not have the non-metallized Ranges 27 extends, can be achieved that only in Area of the space to be created, i.e. there where the metallization between the dashed lines 24 is present, the decorative layer 23 destroyed and as a result is removed from the carrier film 1. In the other areas the metal layer 28 on which the laser light is not acts, the decorative layer 23 remains in contrast.
  • Figure 7 finally serves to illustrate a Possibility of producing stamping foils according to the Invention without using laser radiation.
  • the embossing foil shown in FIG. 7 also includes one usual carrier film 1, on which a release layer 5 a total of 33 designated decor layer is set.
  • the decorative layer 33 consists on the one hand of a Decorative lacquer layer 36, which in turn consists of several Layers exist and can be suitably patterned. Also it would be conceivable in the decorative lacquer layer 35 or a spatial one, in particular at its interface 37 Structure according to the spatial structure 7 of the others To provide exemplary embodiments, which may also have a Reflection layer could be provided.
  • the decorative layer 33 as an outer, i.e. the layer remote from the carrier film 1 as Has mask acting layer 38, the mask 38 from a material, for example a paint, which is resistant to solvents and / or caustic agents.
  • This Mask 38 is used in the manufacture of the stamping foil, for example in a suitable printing process, only in the Areas attached, which later form the patches 2 should. If the mask has hardened then what for example using UV radiation surface 39 corresponding to the mask Stamping foil of the action of a suitable solution or Exposed to etchant, which does not mask 38, however, the decorative lacquer layer 36 attacks.
  • the structure of the stamping foils according to the invention basically the Structure of known stamping foils corresponds to why apart from examples of that Composition of the layers forming the individual layers to explain in detail.

Landscapes

  • Laminated Bodies (AREA)
  • Decoration By Transfer Pictures (AREA)
  • Duplication Or Marking (AREA)
  • Adhesive Tapes (AREA)
  • Adhesives Or Adhesive Processes (AREA)
  • Credit Cards Or The Like (AREA)
  • Ink Jet Recording Methods And Recording Media Thereof (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
  • Medicinal Preparation (AREA)
  • Cosmetics (AREA)
  • Laser Beam Processing (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)
EP99915506A 1998-03-26 1999-03-01 Prägefolie, insbesondere heissprägefolie Expired - Lifetime EP1068082B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19813314A DE19813314A1 (de) 1998-03-26 1998-03-26 Prägefolie, insbesondere Heissprägefolie
DE19813314 1998-03-26
PCT/DE1999/000605 WO1999048703A1 (de) 1998-03-26 1999-03-01 Prägefolie, insbesondere heissprägefolie

Publications (2)

Publication Number Publication Date
EP1068082A1 EP1068082A1 (de) 2001-01-17
EP1068082B1 true EP1068082B1 (de) 2002-05-22

Family

ID=7862389

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99915506A Expired - Lifetime EP1068082B1 (de) 1998-03-26 1999-03-01 Prägefolie, insbesondere heissprägefolie

Country Status (16)

Country Link
US (1) US6627286B1 (ja)
EP (1) EP1068082B1 (ja)
JP (1) JP2002507510A (ja)
CN (1) CN1189333C (ja)
AT (1) ATE217842T1 (ja)
AU (1) AU739492B2 (ja)
BR (1) BR9909081A (ja)
CA (1) CA2324106C (ja)
DE (2) DE19813314A1 (ja)
DK (1) DK1068082T3 (ja)
ES (1) ES2177268T3 (ja)
HK (1) HK1029969A1 (ja)
PT (1) PT1068082E (ja)
RU (1) RU2185292C1 (ja)
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EP1068082A1 (de) 2001-01-17
AU739492B2 (en) 2001-10-11
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US6627286B1 (en) 2003-09-30
CA2324106C (en) 2006-08-22
CN1298353A (zh) 2001-06-06
JP2002507510A (ja) 2002-03-12
DE19813314A1 (de) 1999-09-30
AU3407399A (en) 1999-10-18
PT1068082E (pt) 2002-10-31
RU2185292C1 (ru) 2002-07-20
CN1189333C (zh) 2005-02-16
WO1999048703A1 (de) 1999-09-30
BR9909081A (pt) 2000-12-12
RU2000126839A (ru) 2004-03-10
ATE217842T1 (de) 2002-06-15
HK1029969A1 (en) 2001-04-20

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