DE202006006836U1 - Locally metallized printed film, e.g. for design samples, comprises a printed film with selected areas coated with adhesive to which the metallization is applied - Google Patents

Abstract

A printed film has an adhesive coating applied to one side by means of a carrier film. The adhesive is radiated through a mask with the required pattern so that certain areas are hardened while the adhesive remains active in others. Metallization is then applied to the adhesive areas by a thermo-transfer process, by cold pressing or by hot pressing.

Description

The The invention relates to a partially metallized film impression.

At the Making printed films that are partially metallized to to have a metallic effect in certain areas due to the extremely high degree of gloss is it for the presentation of designs for such partially metallised foils insufficient to provide any pattern, but it has proved necessary, a printed image with the desired To present metallic effect.

There production of samples of such partially metallized films very much is costly, is created as a pattern so far a Folienandruck. The conventional ones Foil prints can however metallic effects, ie areas with extremely high gloss character, do not play.

Of the The invention is based on the object of specifying a film impression, which has a metallic effect in intended areas, so that a pattern corresponding to the final product without the costly one Production of a usual Pattern can be produced with metallic effect.

Is solved this task with a Folienandruck, the characteristics of claim 1 has.

preferred and advantageous embodiments The invention are the subject of the dependent claims.

The Invention comprises in one embodiment laminating transparent (digital or analog) printed films with metallized transfer films. The metallization (metallic layer) can also be applied in other ways. For example may be the thermal transfer method, the cold stamping method or the hot stamping method be applied. By providing a sticky only in some areas Laminate film is made of this transfer film metallization only partially applied so that (at least one) partially metallized Area arises. The partially metallized film impression according to the invention gives the gloss level of finished products with metallic effect very much good again, giving customers a look that matches the final product Pattern can be submitted.

• A) Herstellen einer bedruckten transparenten Folie ("Cromalin", eingetragener Markennahme von Du Pont): (= analoges Cromalin) Schritt 1: Bereitstellen einer Trägerfolie. Schritt 2: In einer Laminiereinrichtung Aufbringen einer einseitig mit Schutzfolie belegten (beidseitig klebrigen) Laminatfolie auf die Trägerfolie. Schritt 3: Abziehen der Schutzfolie. Schritt 4: Auflegen eines Films mit wenigstens einem lichtundurchlässigen (schwarzen) Bereich, in dem eine erste Farbe aufzubringen ist. Schritt 5: Belichten, um den wenigstens einen nicht abgedeckten Bereich der Laminatfolie auszuhärten. Schritt 6: Entfernen des in Schritt 4 aufgelegten Films. Schritt 7: Auftragen von Pulver mit der ersten Farbe, diese Pulver haften auf dem wenigstens einen klebrig gebliebenen (in Schritt 5 nicht belichteten) Bereich an der Laminatfolie.
• B) Wiederholen der Schritte 2 bis 7 für jede im Folienandruck enthaltene Farbe.
• C) Aufbringen einer bereichsweisen Metallisierung: Schritt 8: In einer Laminiereinrichtung Aufbringen einer einseitig mit Schutzfolie belegten (beidseitig klebriger) Laminatfolie auf die nach A) und B) erhaltene Folie. Schritt 9: Abziehen der Schutzfolie. Schritt 10: Auflegen eines Films mit wenigstens einem lichtundurchlässigen (schwarzen) Bereich, in dem eine Metallisierung herzustellen ist. Schritt 11: Belichten, um den wenigstens einen, nicht abgedeckten Bereich der Laminatfolie auszuhärten. Schritt 12: Entfernen des in Schritt 10 aufgelegten Films. Schritt 13: Aufbringen einer einseitig mit Schutzfolie belegten (beidseitig klebrigen) Laminatfolie auf die Rückseite einer metallbeschichteten (z.B. Aluminium) Transferfolie in einer Laminiereinrichtung. Schritt 14: Abziehen der Schutzfolie von der Laminatfolie. Schritt 15: Aufbringen der in Schritt 13 und 14 erhaltenen, mit Laminatfolie belegten, metallisierten Transferfolie auf die nach Schritt 12 erhaltene Folie in einer Laminiervorrichtung unter Anwenden von Druck und Wärme. Schritt 16: Abziehen der Transferfolie, wobei die Metallbeschichtung auf dem (wenigstens einen) in Schritt 11 nicht belichteten (klebrig bleibenden) Bereich der Laminatfolie haften bleibt, so dass ein in wenigstens einem vorgesehenen Bereich metallisierter und daher in diesem Bereich einen Metallic-Effekt aufweisender Folienandruck erhalten wird.

The process of producing a patterned film print according to the invention with at least one metallized region can be described by way of example as follows:

• A) Prepare a printed transparent film ("Cromalin", registered trademark of Du Pont): (= analogous Cromalin) Step 1: Provide a carrier film. Step 2: In a laminator Apply a (on both sides sticky) laminated film coated on one side with protective film on the carrier film. Step 3: Peel off the protective film. Step 4: Applying a film having at least one opaque (black) area in which a first color is to be applied. Step 5: Exposure to cure the at least one uncovered area of the laminate film. Step 6: Remove the film created in step 4. Step 7: Apply powder of the first color, these powders adhere to the at least one sticky (not exposed in step 5) area on the laminate film.
• B) Repeat steps 2 to 7 for each color included in the film proof.
• C) Applying a zone-wise metallization: Step 8: In a laminating device Applying a (on both sides sticky) laminated film coated on one side with protective film on the film obtained according to A) and B). Step 9: Peel off the protective film. Step 10: Applying a film having at least one opaque (black) region in which to produce a metallization. Step 11: Exposure to cure the at least one uncovered area of the laminate film. Step 12: Remove the film set up in step 10. Step 13: Applying a (on both sides sticky) coated laminate on one side with protective film on the back of a metal-coated (eg aluminum) transfer film in a laminator. Step 14: Peel off the protective film from the laminate film. Step 15: Apply the metallized transfer film coated with laminate film obtained in steps 13 and 14 to the film obtained after step 12 in a laminator by applying pressure and heat. Step 16: Peeling off the transfer film, wherein the metal coating adheres to the (at least one) unexposed (sticky) area of the laminate film in step 11, so that a in we at least one intended area metallized and therefore in this area having a metallic effect exhibiting Folienandruck is obtained.

When producing film prints according to the invention, it is possible to proceed in detail, for example, as follows:
The starting point is preferably analogue or digitally printed film, eg Cromalin (Cromalin is a registered trademark of Du Pont), which is only partially white. On the back of the cromalin is applied a laminate film, eg a laminate film C4-BX. Subsequently, this laminate film is partially covered by a film and exposed. Those areas of the laminate film which were covered by opaque (eg black) areas of the film do not harden and thus remain sticky. Subsequently, a silver (eg aluminum) metallized transfer film (Luxor / Alufin PPS-X layer thickness 2μ) is applied over another laminate film (tacky) applying pressure and heat. The metal layer of the transfer film applied in this way only adheres to the previously covered and sticky areas of the cromalin-applied laminate film. This results in a Folienandruck, on the back side in some areas a metallic effect is present by areas with a high degree of gloss present.

in the The result is a Folienandruck, the end product with a metallic effect comes very close and can be used as a customer sample.

The For example, materials useful in the invention may be used be the following:

Laminate film:
This is a double-sided sticky film (coated on one side with a protective foil), which can be cured by exposure. For example, the following films can be used: C4-BX (manufacturer: Du Pont) and DP-TS B2 775 × 56 (manufacturer: Du Pont).

Transfer Film:
The transfer film is a film which is covered with a metallic layer, for example a silver-colored layer of aluminum. The thickness of the coating can be on the order of 2μ. This metal coating of the transfer film can be transferred by applying pressure and heat to another medium (presently to sticky areas of the laminate film on the Cromalin).

For example, can be used as a transfer film:
Transfer film Luxor / Alufin PPS-X (manufacturer: Leonhard Kurz GmbH & Co. KG), which has as a film material a film of polyester and a silver-colored coating of aluminum.

cromalin:
A Cromalin is in the present a multicolored Folienandruck, which corresponds in color number and appearance the later duck result. The production of this multicolor Folienandruckes can be done either analog or digital, where it can be proceeded as follows:

Analog Cromalin:
A laminate film is applied to a carrier film, partially covered with a film and then exposed. The covered areas remain sticky after exposure, the rest hardens. Subsequently, a color powder is applied, which adheres to the sticky areas. This process is repeated for each color to be produced in the Folienandruck.

Digital Cromalin:
In this process, the colors, similar to a laser print, printed on a carrier foil, so that in a process a multi-colored template can be created.

Metallized foil pressure:
The transfer film (Luxor / Alufin PPS-X) is applied to the laminate film (DP-TS B2 775 × 56). On the back of the Cromalin the laminate film (C4-BX) is applied, partially covered by a film and exposed, wherein the areas covered by opaque areas of the film do not harden, so remain sticky. Then the composite of laminate and transfer film is applied by means of pressure and temperature. Finally, the composite of laminate and transfer film is stripped off the cromalin, whereby the metal layer of the transfer film adheres to the cromalin and gives the desired metallic effect in the intended areas.

In practice, for the production of a film impression, which can be presented as a sample to a customer of the manufacturer of printed films (sample impression), the procedure is, for example, as follows:
In a discussion with the customer, it is decided how the final product, which should be partially metallized, should look like. In order to be able to convey the metallic effect and the appearance of the finished product to the customer before series production without the expense of sample production, as in mass production, a partially metallized film impression is produced.

The customer, or his advertising agency, transmits the product-specific data. All printing inks are underlaid in white so as not to appear translucent. To achieve a metallic luster chen, the bright colors must be printed directly on the metallic foil, ie without white.

To passed examination and tuning the areas that should appear metallic, will the data, if not already done by the advertising agency, divided into the individual inks.

For every color a film will be created (with the appropriate opaque areas) created, and another movie, which covers all printed areas includes - this one will be subsequently for the metallic layer is needed.

to Production of an analogous Cromalin is on a carrier foil a laminate film (e.g., Type C4-BX) was applied. this happens in a laminator. Here are the two slides between two rollers then pressed together, then the protective film of the laminate film C4-BX deducted by hand. Subsequently, a movie becomes the first Ink placed on the sticky laminate film. When exposing harden the uncovered (= transparent to the film) areas of the laminate film off, the rest sticky. On the sticky areas is colored powder applied, then the next Laminate film C4-BX pressed on. This process must now be for each color be repeated until the entire print image is completed.

At the Film pressure according to the invention can For example, a (color) printed film, as just described cromalin.

in the Laminator will put another laminate foil on the back cromalin pressed on and peeled off the protective film. Subsequently, will a movie for the metallic coating, which is in the unexposed areas the laminate film opaque (e.g., black) is overlaid and again exposed.

Parallel For this purpose, another laminate film (DP-TS B2 775 × 56) with a silver coated transfer film Luxor / Alufin PPS-X im Laminator connected.

This Composite is on the partially sticky back of cromalin (there are this is the previously unexposed areas of the back the cromalin on pressed laminate film) again in the laminator applied and then deducted by hand again.

On the previously sticky areas of the laminate film remains the approximately 2μ thick metal coating stick (she dissolves itself from the transfer film) and gives the desired metallic effect in the intended Areas.

In summary, the film impression according to the invention can be described as follows:
A partially metallized film proof which can be presented to a customer as a sample can be produced as follows:
A laminate film is applied to a printed, transparent film and exposed, whereby the areas in which the printed, transparent film is to be metallized are covered by black areas of an applied film. On the thus provided with sticky areas printed, transparent film, a metal-coated transfer film, which is covered with a double-sided adhesive laminate film, applied using pressure and heat in a laminator. Subsequently, the transfer film is peeled off, wherein the metallization dissolves in the areas of the transfer film, in which the applied to the printed, transparent film laminate film has not been exposed, so it has remained sticky. Thus, in these areas, the metallization remains on the printed, transparent film adhere, so that in these areas a metallic effect exhibiting Folienandruck is obtained.

Claims (8)

Teilmetallisierter Folienandruck, characterized in that provided with at least one, optionally transparent printing in at least one color transparent film is provided in at least one area with a tacky coating, and that applied to this at least one, provided with a sticky coating area metallization is. Film pressure according to claim 1, characterized in that that the transparent film with a double-sided adhesive laminate film which is coated outside the provided by means of the sticky coating with the metallization Range, if necessary, by exposure, cured. Foil pressure according to claim 2, characterized in that that the laminate film in the unexposed area by a film is covered in the unexposed area opaque is. Foil pressure according to claim 3, characterized in that the film is black in the opaque area. Foil pressure according to one of claims 2 to 4, characterized in that the laminate film on one side with a before the application of the film peelable protective film is occupied. Foil pressure according to one of claims 1 to 5, characterized in that the metallization in the thermal transfer process is applied. Foil pressure according to one of claims 1 to 5, characterized in that the metallization in the cold embossing process is applied. Foil pressure according to one of claims 1 to 5, characterized in that the metallization in the hot stamping process is applied.