Metso's New PressHusky and VacuHusky Polyurethane Roll Covers to Improve Tissue Quality

摘要

Metso has launched polyurethane roll covers for tissue machine press and suction press rolls. The new PressHusky and VacuHusky roll covers are designed especially for Yankee press applications widely used in dry crepe tissue production. As an option, a Metso iRoll online nip profile measuring system can be applied with these new roll covers. Some tissue grades are sensitive when it comes to bulkiness and thickness so lower nip pressures are preferred in pressing. Traditionally, this has been a limitation in the use of polyurethane roll covers in Yankee press applications. However, the new polyurethane material of PressHusky and VacuHusky covers offers several hardness alternatives and more options for cover topography, which results in maximised dewatering and the desired tissue quality with high bulkiness and thickness.