Reifenhuser cast pet film linesspot landing through high degree of vertical innovationinitially at k 2010 in dsseldorf, reifenhuser presented a cast film line producing 3layer unstretched cast pet film that caused a great stir and attracted internationalinterest. By now, four lines using this technology are in operation worldwide. Furtherlines are scheduled to be shipped shortly.key component of this line is the reitruder twinscrew extruder that allows processing ofpet without the need for precrystallization and predrying, similar to the production ofsheets.