Shoe Presses - Tissue

Shoe presses have been used in the production of paper and board for years, and have more recently been used in tissue manufacture. On tissue machines, they can replace the suction pressure roll, or they can be used in other sheet transfer locations. Shoe presses offer a significantly longer nip width and dwell time than conventional suction pressure rolls. Benefits include increased bulk, higher dryness after pressing (PPRC), and improved cross-machine direction (CD) moisture profiles. These can reduce fiber costs, reduce drying energy requirements or increase machine speeds, and improve sheet quality and machine runnability.

Describe the major difference between a shoe press and a conventional suction pressure roll Identify the two functions of a suction pressure roll on a tissue machine List the benefits of shoe presses on tissue machines Identify and describe the major components of a shoe press, including the stationary press beam, hydraulically-loaded shoe, sleeve or belt, roll heads and journals, and dedicated hydraulic system