Seven-Layer R&D Line Spurs Blown Film Innovation

摘要

The Alpine line has seven 50-mm, grooved-feed extruders with 30:1 L/D. It is equipped Alpine's patented X die, which is designed to eliminate port lines. Dow has 200- and 250-mm die inserts. [Greg Bunker] remarked on how quickly the die purges, which is critical where product changeovers are the norm and setup time must minimized. Film gauge is regulated by Alpine's segmented air ring. The line is also furnished with Alpine's Resin Miser control system.