Impulse Drying: Heterogeneous Press Roll Surfaces Offer New Product Opportunities, 1991 Nonwovens Conference Proceedings
Research at the Institute of Paper Science and Technology, IPST, has ocused on overcoming sheet delamination during impulse drying of heavyweight webs. Laboratory scale experiments demonstrate that high levels of water removal can be maintained while eliminating delamination by using a press roll coated with a low-thermal-mass ceramic. The experiments also suggest that heterogeneous surfaces composed of metal and ceramics can be used to develop unique heterogeneous web structures which may have application in a number of important markets.