Polyester forming fabric is used in the forming section of the paper machine to dewater the fiber suspension and hence build up a continuous paper web. As web forming is the most important phase in paper producing, specialised fabrics have to be used to achieve the required paper sheet properties such as smoothness, filler distribution, or printability. Polyester forming fabric are woven on looms, in which the machine direction yarns (warps) and cross direction yarns (weft) are interlaced with each other. 

Polyester forming fabrics have a length between approximately 25 and 105 m dependent on the paper machine, typically in a gap former the length of the wires would be between 25 and 30 m. The widest fabrics nowadays would be up to 11 m as paper machine width has been increasing significantly in the past 10 years. The lifetime is between 30 and 120 days, most typically between 30 and 50 days.

The main requirements of polyester forming fabrics have to meet are:

   • sufficient hold up, controlled transport and release of the filtrate, the so-called white water.
   •  safe web transport to the couch position
   • gentle and uniform web support during intensified web dewatering at foils and vacuum suction boxes
   • easy web release

   • uniform dewatering of suspension exiting the headbox and uniform build up of the paper web

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: polyester forming fabric