EP2921312B1 - Procédé de production d'une bande de feuille multicouches imprimée - Google Patents

Procédé de production d'une bande de feuille multicouches imprimée Download PDF

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Publication number
EP2921312B1
EP2921312B1 EP15159724.2A EP15159724A EP2921312B1 EP 2921312 B1 EP2921312 B1 EP 2921312B1 EP 15159724 A EP15159724 A EP 15159724A EP 2921312 B1 EP2921312 B1 EP 2921312B1
Authority
EP
European Patent Office
Prior art keywords
layer
film
film layer
printing
pattern
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.)
Active
Application number
EP15159724.2A
Other languages
German (de)
English (en)
Other versions
EP2921312A1 (fr
Inventor
Ralf Imbery
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.)
Konrad Hornschuch AG
Original Assignee
Konrad Hornschuch AG
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 Konrad Hornschuch AG filed Critical Konrad Hornschuch AG
Priority to PL15159724T priority Critical patent/PL2921312T3/pl
Publication of EP2921312A1 publication Critical patent/EP2921312A1/fr
Application granted granted Critical
Publication of EP2921312B1 publication Critical patent/EP2921312B1/fr
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41MPRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M1/00Inking and printing with a printer's forme
    • B41M1/10Intaglio printing ; Gravure printing
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41CPROCESSES FOR THE MANUFACTURE OR REPRODUCTION OF PRINTING SURFACES
    • B41C1/00Forme preparation
    • B41C1/18Curved printing formes or printing cylinders
    • B41C1/184Curved printing formes or printing cylinders by transfer of the design to the cylinder, e.g. from a lithographic printing plate; by drawing the pattern on the cylinder; by direct cutting of the pattern on the cylinder
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41MPRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M1/00Inking and printing with a printer's forme
    • B41M1/26Printing on other surfaces than ordinary paper
    • B41M1/30Printing on other surfaces than ordinary paper on organic plastics, horn or similar materials

Definitions

  • the invention relates to a method for producing a multilayer film web, in which a first film layer is provided in regions with at least one document in accordance with a printing pattern and then on the first film layer, a second film layer is applied as a protective layer, including the at least one print layer.
  • Such film webs are known and are applied for example as privacy films on glass surfaces, wherein the first and second film layer are transparent and a print layer is arranged in accordance with a print pattern between these film layers, which causes prismatic effects and refractions, the glass surface thus equipped similar to a make textured glass opaque.
  • the second film layer is often an acrylate film and serves as a protective film for the print layer and the underlying first film layer, which may be formed for example based on PVC.
  • multilayer film webs are known as decorative films in self-adhesive equipment, for example, to provide plastic window profiles with a colored surface.
  • additional effects come into consideration here, such as the application of the printing layer of a paint containing effect pigments in order to give the multilayer film web a metallic gloss effect.
  • the object of the invention is therefore to propose a method for producing such a multilayer film web in which a high-quality printing results are achieved in a rational manner and, moreover, the adhesion between the first and second film layer is ensured even with a very dense and intensive print pattern of the print layer.
  • the proposal according to the invention is based on the fact that the at least one printing layer is applied to the first film layer by means of a gravure printing cylinder having the printing pattern, wherein the printing pattern is formed as a frequency-modulated grid of irregularly arranged discrete points of a predetermined minimum diameter, between which non-printed areas remain in which the first and second film layers are bonded together immediately adherent.
  • the proposal according to the invention is based on applying a specially selected printing pattern of irregularly arranged discrete dots in a frequency-modulated screen in the gravure printing method to the first film layer, wherein the frequency-modulated screen opens the possibility of providing areas not printed adjacent to each individual dot of the printing pattern.
  • the first and second film layers are adhesively bonded to one another immediately, so that even with dense and intensive printing of the first film layer, an always satisfactory adhesion to the second film layer is ensured.
  • the frequency-modulated screen opens the possibility to arrange all points without rigid grid or line specification, so that the print layer can be applied with much more detail and without recognizable regular structures. This is particularly desirable in the production of privacy films or metallic effect films, since the visual impression is greatly improved.
  • the frequency-modulated grid provided according to the invention offers the possibility of designing the individual points of the print layer with regard to their dimensioning according to requirements, it being possible in particular to specify a minimum diameter which is required, for example, for receiving effect pigments to be applied.
  • the irregular arrangement of the dots of the print pattern is chosen according to a proposal of the invention so that no regular line or screen pattern for a viewer with the naked eye is recognizable.
  • the printing pattern is applied for example by means of a gravure cylinder, in the surface of which the printing pattern was introduced by means of a laser or electron beam system by direct removal or evaporation of material of the gravure cylinder, as for example from DE 101 34 150 A1 is known.
  • the minimum diameter of the dots of the printed pattern is not subject to any general restrictions and can be selected by a person skilled in the art depending on the application. If commercially available effect pigments containing coatings to achieve a metallic effect in the multilayer film web to be introduced as a reference, a minimum diameter of the dots of the print pattern in the range of 30 to 50 microns is considered suitable.
  • the first film layer may be based on polyvinyl chloride (PVC) and the second layer based on an acrylate, for example polymethylmethacrylate (PMMA), and serves as a protective layer for the first film layer and the printing layer applied thereon.
  • PVC polyvinyl chloride
  • PMMA polymethylmethacrylate
  • the second film layer is laminated after the application of the printing layer to the first film layer, for example by the action of pressure and heat, wherein adhesion occurs in the areas in which due to the printing pattern, the first film layer is not printed with dots of the printing layer, i. in the areas where the first and second film layers come into contact with each other immediately superficially.
  • the first film layer can be provided not only with a print layer but also with a plurality of, for example, successively applied print layers in the manner according to the invention before the second film layer is applied to the first film layer, including the at least one print layer.
  • Such multilayer film webs are also widely used as decorative films when they are equipped with a self-adhesive bottom, for example, to glue them on a plastic window frame profile or in the case of a privacy film on a glass surface.
  • a first film layer 1 for example based on a PVC film
  • a gravure cylinder 10 indicated only symbolically, which is in peripheral connection with the upper side of the first film layer 1 and onto which by means of a laser or electron beam system by direct removal or evaporation of material of the gravure cylinder 10, a printing pattern has been applied to the type shown in more detail below, which transmits this gravure cylinder 10 in the gravure printing process by means of a paint containing effect pigments on the surface of the first film layer.
  • a printing layer 3 is thus applied to the first film layer in the gravure printing method by means of the gravure cylinder 10.
  • the print layer 3 is dried and the thus provided with a print layer 3 first film layer 1 runs to a laminating station 4, which is also a second film layer 2 supplied from a supply roll, not shown, such that the second film layer 2, including the print layer. 3 is placed on the top of the first film layer 1 and together the thus formed composite passes through the laminating station 4.
  • the second film layer can be formed, for example, from a polyacrylate film.
  • the laminating station 4 takes place by the action of pressure and heat between the two indicated laminating an adhesive bond of the first and second film layer 1, 2, including the at least one printing layer, so that a composite is produced, which in sectional view also from FIG. 2 is apparent.
  • the lower layer formed by the first film layer 1 can be seen, to which points 30 of a printing layer 3 are applied in accordance with a printing pattern explained below.
  • the second film layer 2 which is adhesively bonded directly to this first film layer 1 in those surface regions of the first film layer 1 which are not covered by dots 30 of the print layer 3.
  • the printing pattern is a frequency-modulated raster of irregularly arranged discrete dots 30, the irregular arrangement of the dots 30 of the printing pattern being chosen such that no regular line or raster pattern can be recognized.
  • Each individual discrete point 30 of the printing pattern has a predetermined minimum diameter, which in the exemplary embodiment is approximately 30 to 50 ⁇ m in adaptation to the effect pigments used in the printing ink of the printing layer.
  • the films which can be produced by the process according to the invention in the previously described manner are therefore distinguished not only by extremely advantageous printing, but also by particularly firm bonding of the first and second film layers 1, 2.
  • the method according to the invention is, of course, not limited to the selection of only a first and a second film layer, but it is equally possible to produce multilayer film webs with a higher number of layers.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Laminated Bodies (AREA)
  • Printing Methods (AREA)

Claims (7)

  1. Procédé de production d'une bande de feuille multicouche, dans lequel on dote une première couche de feuille (1) localement d'au moins une couche imprimée (3) suivant un motif d'impression et on applique ensuite sur la première couche de feuille une seconde couche de feuille (2) comme couche de protection avec inclusion de ladite au moins une couche imprimée (3), caractérisé en ce que l'on applique ladite au moins une couche imprimée (3) sur la première couche de feuille (1) par le procédé d'impression en creux au moyen d'un cylindre d'impression en creux (10) présentant le motif d'impression et le motif d'impression est formé par une trame modulée en fréquence de points discrets (30) disposés de façon irrégulière d'un diamètre minimal prédéterminé, entre lesquels il subsiste des zones non imprimées, dans lesquelles la première et la seconde couches de feuille (1, 2) sont assemblées directement l'une à l'autre par adhérence.
  2. Procédé selon la revendication 1, caractérisé en ce que l'on choisit la disposition irrégulière des points (30) du motif d'impression de telle sorte qu'aucun motif régulier de lignes ou de trame ne puisse être identifié.
  3. Procédé selon une des revendications 1 ou 2, caractérisé en ce que le diamètre minimal des points (30) du motif d'impression vaut 30 à 50 µm.
  4. Procédé selon l'une quelconque des revendications 1 à 3, caractérisé en ce que la couche imprimée (3) contient des pigments à effet.
  5. Procédé selon l'une quelconque des revendications 1 à 4, caractérisé en ce que la première couche de feuille (1) est formée à base de polychlorure de vinyle et la seconde couche de feuille (2) est formée à base d'un acrylate et on applique la seconde couche de feuille (2) sur la première couche de feuille (1) après l'application de la couche imprimée (3).
  6. Procédé selon l'une quelconque des revendications 1 à 5, caractérisé en ce que la bande de feuille multicouche est gaufrée.
  7. Utilisation d'une bande de feuille fabriquée par le procédé selon les revendications précédentes et dotée d'un côté inférieur autoadhésif comme feuille de décoration.
EP15159724.2A 2014-03-20 2015-03-18 Procédé de production d'une bande de feuille multicouches imprimée Active EP2921312B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL15159724T PL2921312T3 (pl) 2014-03-20 2015-03-18 Sposób wytwarzania kilkuwarstwowego zadrukowanego arkusza folii

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102014103873.8A DE102014103873B4 (de) 2014-03-20 2014-03-20 Verfahren zum Herstellen einer mehrschichtigen Folienbahn sowie deren Verwendung als Dekorfolie

Publications (2)

Publication Number Publication Date
EP2921312A1 EP2921312A1 (fr) 2015-09-23
EP2921312B1 true EP2921312B1 (fr) 2018-07-25

Family

ID=52875435

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15159724.2A Active EP2921312B1 (fr) 2014-03-20 2015-03-18 Procédé de production d'une bande de feuille multicouches imprimée

Country Status (4)

Country Link
EP (1) EP2921312B1 (fr)
DE (1) DE102014103873B4 (fr)
PL (1) PL2921312T3 (fr)
PT (1) PT2921312T (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107933087A (zh) * 2017-12-21 2018-04-20 重庆渝州印务厂 一种覆膜装置

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69015489T2 (de) * 1989-02-20 1995-08-24 Dainippon Printing Co Ltd Dekorationsfilm und verfahren zur herstellung.
DE4440853C2 (de) * 1994-11-15 1998-07-16 Dlw Ag Verfahren zum Dekorieren von nicht oder nur schwierig direkt bedruckbaren Unterlagen in Form von Platten, flexiblen Bahnen oder Substraten
US6120907A (en) * 1997-10-24 2000-09-19 Agfa-Gevaert, N.V. Data card comprising a laser recording medium and a thin glass layer
DE19920359A1 (de) * 1999-05-04 2000-11-09 Wolff Walsrode Ag Aufreißstreifen mit Sicherheitsmerkmal, ein Verfahren zu seiner Herstellung sowie dessen Verwendung in Verpackungsmaterial
DE10018316C1 (de) * 2000-04-13 2001-10-18 Galaxy Media Syst Werbemittel Verfahren zum Mehrfachbedrucken von transparenten Bedruckstoffen
DE10134150A1 (de) * 2001-07-13 2003-01-30 Heidelberger Druckmasch Ag Vorrichtung zur Ausbildung von Näpfchen in einer Druckform für den Tiefdruck
US8697337B2 (en) * 2012-01-23 2014-04-15 Albert G. Roshelli, JR. Laminating apparatus and method of using the same

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
DE102014103873A1 (de) 2015-09-24
EP2921312A1 (fr) 2015-09-23
PL2921312T3 (pl) 2019-03-29
DE102014103873B4 (de) 2015-11-19
PT2921312T (pt) 2018-10-26

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