APPLICATION OF THERMAL BARRIER COATINGS TO PAPER MACHINE DRYING CYLINDERS TO PREVENT PAPER EDGE OVERDRYING

摘要

The invention overcomes the problem of paper edge overdrying during the paper drying process on paper machine drying cylinders. It comprises applying a thin ceramic coating onto the circumferential exterior surface of the cylinder near the cylinder edges, thereby forming a thermal barrier coating which decreases paper drying rate at said edges and reduces or eliminates paper edge overdrying.