MULTI-COLORED COMPOSITE FOIL OF THERMOPLASTIC SYNTHETIC MATERIAL AND METHOD AND DEVICE FOR ITS MANUFACTURE

The invention concerns a multi-colored composite foil ( 14 ) of thermoplastic synthetic material and a method and a device for its manufacture. The device according to the invention comprises a first extruder device ( 20 ) with a first forming tool ( 22 ), whereby the extruder device produces a firs...

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Bibliographische Detailangaben
Hauptverfasser: ROST, EBERHARD, BREUKSCH, ULRICH, WOLFF, ROLAND
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:The invention concerns a multi-colored composite foil ( 14 ) of thermoplastic synthetic material and a method and a device for its manufacture. The device according to the invention comprises a first extruder device ( 20 ) with a first forming tool ( 22 ), whereby the extruder device produces a first plastified synthetic material melt and extrudes same by the first forming tool in order to manufacture a carrier foil or carrier layer ( 10 ) with a first color ( 28 ) and with a depression. The device can, furthermore, comprise at least one second extruder device ( 24 ) with a second forming tool, whereby the second extruder device produces a plastified synthetic material melt and extrudes same by means of the forming tool in order to produce a top foil or top layer ( 12 ), which has a second color and which fits, surface-flush, into the depression of the carrier layer or carrier foil. The device according to the invention has, in addition, a calender ( 32 ) which joins the carrier foil, surface-flush, with the top foil fitted into the depression of the carrier foil under the influence of pressure and heat and which flattens out the produced surface.