Extrusion Dies: New Ultracoat slot die

Extrusion Dies: New Ultracoat slot die

Advances in precision and uniformity achieved with a new generation of Ultracoat (R) slot dies enable web converters to apply consistent, distortion-free fluid coatings even at very low coat weights or onto very thin substrates, it was announced today by Extrusion Dies, Inc. (EDI),USA.

Key to the improvements is a new die design. As in standard dies, the wet or wiping lip (the lip passed by the substrate after coating has been applied) is on the upper section of the die; the profile and surface properties of this lip play a critical role in coating quality and consistency. Unlike standard dies, however, EDI’s new Ultracoat V die has the flexible lip and lip-adjusting system (used to change the size of the exit gap) on the lower section. This prevents the flexible lip from interfering with wet-lip functions and causing distortions in the coating, according to Jeffrey Seckora, EDI product manager for coating dies.

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