Polyester dryer fabric should absorb the sheet moisture inside the cavities of the screen without the material itself absorbing any moisture together with sheet support function . But this moisture has to be released again in the free draws and pockets. Compared to woven dryer screens, polyester spiral dryer fabric can have up to 70% more void volume, with a corresponding positive effect on drying capacity.

Now, polyester dryer fabrics with a permeability of approx. 100-120 cfm are indispensable for single-tier dryer sections.

In the transition zone of the sheet from the press into the drying section, a permeability as low as 80 cfm is necessary because of the low vacuum at the suction guide roll.

The polyester dryer fabric thickness here is between 1.3 and 1.7 mm. Such low permeability dryers can also be produced on weaving looms using different monofilament profiles and weave patterns. These state-of-the-art dryer screens reach a thickness of only 1.8 mm when flat spiral monofilaments are used. These polyester dryer fabric are used in many modern paper machines, for many different paper grades all over the world .

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 

Tags: polyester dryer fabric, woven dryer screens, polyester spiral dryer fabrics