After the paper has been partially dried while on the polyester mesh, it still contains vast amounts of water which must be removed to stabilize and strengthen the paper. The first of these additional drying sections is the press section. 

The press section or “wet-press section” contains several polyester spiral filter fabric and suction pick-up (vacuum) rolls, which remove water from the paper mat until it reaches about 50%.  Although the paper web can support its own weight, carrier felts support the web, while at the same time removing water from the surface and directing it through a series of vacuum rollers. 

 There are two main cylinder vat designs, contraflow and direct flow; and the cylinder felt can be above or below the drying stock.The transference of moisture from the web to the polyester spiral press filter fabric is enhanced by the nips (the contact points between the rollers) of the rollers, suction boxes, and rollers.

Coco Qin
Sales Department
Hebei Defeng Polyester Fiber Co., Ltd
Add: Wugong Town West Raoyang County Hebei Province China
TEL: 0086-311-67699480
FAX: 0086-311-67699480
EAMIL: coco@china-polyestermesh.com 
Website: www.china-polyestermesh.com
Tag:polyester mesh,polyester spiral press filter fabric