The primary function of a dryer fabric is to keep the sheet in contact with the dryer cylinders to provide maximum heat transfer from the cylinder to the sheet. If a wet object is placed against a heat source, the water on the surface will heat up. In the case of paper, the evaporation of the heated water creates a positive pressure that tends to lift the sheet off the dryer. This reduction or loss of contact with the dryer will result in poor heat transfer and poor drying efficiency.

A layer of air between the sheet and the dryer also is carried by the moving sheet and dryer cylinder. The dryer fabric presses the sheet onto the dryer, reducing this air layer. Additionally, the fabric minimizes the effect of centrifugal force, which wants to lift the sheet because of the high machine speeds being run today.

The dryer fabric also functions as a drive belt to turn the majority of the dryers and rolls in recent machines, because only a few of the dryers are driven by the machine’s motors.

Dryer fabric perform all the preceding functions in a very hot and wet environment. The use of select synthetic yarns and weave patterns to supply fabrics that provide long operating life in these adverse conditions. The fabric surface and seams must be smooth to ensure that the fabric does not cause deterioration of the paper surface.

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: dryer fabric