Wet pressing Wet pressing is a unit operation of papermaking where water is removed from the wet web by mechanical compression in the nip formed by two rolls or a roll and a shoe (Figure 1). The water removal is often assisted by the application of heat to the wet web, thus increasing the temperature
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Wet pressing
After reading this article you will..
- understand the basic principle of wet pressing as a unit operation in papermaking.
Content
Natural fibre products
- Printing and writing papers
- Paperboards
- Tissue
- Nonwovens
- Speciality papers
- Production of paper and board
- Stock and water systems
- Web forming
- Wet pressing
- Drying of natural fibre products
- Surface sizing
- Pigment coating
- Finishing
- Converting of paper and board
- Papermaking chemistry
- Paper physics
- Printing
Authors & references
Edited by:
Professor Jouni Paltakari, Aalto University
Based on the Papermaking Science and Technology book, Vol. 8, Papermaking Part 1, Stock Preparation and Wet End. Paulapuro, H. (Book editor). Chapter 9, Wet pressing. Jyväskylä 2008. Finnish Paper Engineers´ Association /Paperi ja Puu Oy. p. 343-401. More literature references can also be found in this chapter.
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This page has been updated 14.11.2020
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