The forming sheet is carried into the press section on soft resilient “felts”  it also called press fabrics. Traditionally, press felts were made of 100% wool because wool has the ability to be compressed in the press nip and spring back without being compacted. 

Press felts were so named because they were manufactured with the filling or “felting” process, that is a loosely woven cloth is densified into a hard fabric as can be seen in felted hats or pool table covers. The fabrics are now referred to as press fabrics because they are produced through needle punching rather than felting.

Water is squeezed out and into the fabric when the sheet is carried through the press felts by the fabric,, further reducing the sheet’s water content. The paper surface finish is further influenced by the press fabric design. As the sheet leaves the press section, typically it is 40% fiber and 60% water, depending on the sheet grade and the paper machine.

Recently developed laminated and seamed press felts designs have shown superior performance on the modern high-load presses now common in paper and board manufacturing.

Bella 
Sales manger 
Hebei Defeng Polyester Fiber Co.,Ltd 
Add: Wugong town west, Raoyang county, Hengshui, Hebei, China 
Tel: 86-311-67699480 
Fax: 86-311-67699480 
Mail: bella@china-polyestermesh.com 
Website: www.china-polyestermesh.com 

Tag: press felts