The Development of The Polymer Rolls for Calender Machines

Abstract

We have been developing and selling polymer rolls for various calender machines (SC, SNC and On machine multi-nip calender) from 1987. We faced many problems from start such as “heat spots”, “crack propagations”, “abrasion”, “delaminations” and so on. For the counter-measure we improved both of cover materials and the adhesive strength, and decreased the inner stress of roll-covers fixed on steel cores.
On this paper we report the outline of the improvement and it's results.