WITH THE ever-increasing demands for tissue machine performance, efficiency, and reduced operating costs, today's world-class tissue makers demand the highest performance from their roll covers and paper machine clothing (PMC) products. Traditional venting in tissue suction rolls was a limiting factor. Roll covers for these positions are designed to generate the proper nip intensity at the maximum load. Traditionally, tiiese covers are specified in the 30 to 45 P&J range since bulk and conformity to die Yankee are key design criteria. Cover compounds must possess good abrasion resistance, crack resistance and hardness stability (to prevent hardening from operating against the hot Yankee dryer).
展开▼
