Cost-Performance Options Expand In Cast-Film Dies
Alternative for cast-film applications that do not call for the special capabilities of high-end die.
Nordson Corp., Chippewa Falls, Wis., has adapted an extrusion die technology that has been in global use for 15 years and now offers it under the new name Uniflow. Billed as an alternative for cast-film applications that do not call for the special capabilities of the widely used EDI Contour die, the Uniflow die was first developed by the Belgian firm Verbruggen, which Nordson acquired in 2011.
The Uniflow die reportedly provides an affordable option for high-speed processing of thermally stable resins with very few rate changes, such as for stretch film. Its versatile flow channel accommodates a broader range of resins and processing parameters. It has an elongated teardrop manifold cross-section that is said to promote uniform layers in coextrusion. Its mechanical stability is said to be outstanding, which reduces the changeover time between product runs
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