On the Use and Care of Supercalender Rolls, 1996 Finishing and Converting Conference Proceedings

E.H. Jones

R.H. Moore

Stowe Woodward

Synthetic roll covers are gaining popularity in supercalender positions because they have mark resistance superior to that of filled rolls and thereby have the potential to offer longer regrind intervals. The maximum benefits of running synthetic covers can only be achieved if protocols are implemented to monitor the calender stack and properly apply the covers. This paper lists and discusses important monitoring tools that can be used to extend the life of supercalender covers and Improve overall calender stack performance. Specifically, this paper presents examples where nip impressions, temperature readings, and roll shape data were employed to diagnose and correct loading problems.Synthetic roll covers are gaining popularity in supercalender positions because they have mark resistance superior to that of filled rolls and thereby have the potential to offer longer regrind intervals. The maximum benefits of running synthetic covers can only be achieved if protocols are implemented to monitor the calender stack and properly apply the covers. This paper lists and discusses important monitoring tools that can be used to extend the life of supercalender covers and Improve overall calender stack performance. Specifically, this paper presents examples where nip impressions, temperature readings, and roll shape data were employed to diagnose and correct loading problems.