发明名称 Method of making a multi-colored composite foil of thermoplastic synthetic material
摘要 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.
申请公布号 US6368445(B2) 申请公布日期 2002.04.09
申请号 US19980136232 申请日期 1998.08.19
申请人 BENECKE-KALIKO AG 发明人 ROST EBERHARD;BREUKSCH ULRICH;WOLFF ROLAND
分类号 B29C47/04;B29C47/06;(IPC1-7):B29C47/02 主分类号 B29C47/04
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