A new pilot line for film extrusion at the company’s plant in Bridgewater, NJ gives processors the opportunity to run tests to gauge the value of Davis-Standard’s triple lip air ring and vertex die, both of which are mounted on this line. According to the manufacturer, early users of the line have been impressed enough to invest in new equipment for their established film extrusion lines.
For example, reports the manufacturer, one processor of mLLDPE coextruded film was limited to a rate of 15 ppi (pounds per inch of die circumference) due to high ambient temperatures and the limits of its dated cooling technology. During a pilot line trial, rates of 23 to 24 ppi were demonstrated with an improved thickness control of +/- 4%, according to D-S, with the result that this processor intends to retrofit a triple lip system with a new die to its existing Davis-Standard coextrusion machines. ...