Sheet Extrusion Line
14 Luglio 2021
Blown Film Extrusion Line
14 Luglio 2021
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BOPP BOPET

The applications of tender frames are BOPP and BOPET, which are the most common supports used in flexible packaging. The process begin commonly through the melt of the granulates BOPP (Biaxially oriented polypropylene) or BOPET (Biaxially oriented polyester) into an extruder and pushed through a T die and simultaneously cooled on a roll. The material cooled is stretched first of all in machine direction in an MDO and then is stretched in transversal direction in a TDO providing an orientation of the molecule on both axes, then wound onto a cylindrical roll for packaging purposes, or more commonly