The number of holes per square inch in polyester forming fabrics, together with the change from the top surface yarns being non-co-planar on single layers to triple layers.This shows the reason for the evolution of fabric designs from single layer to triple layers.

These numbers assist in assessing the uniformity of drainage of the top surface of each polyester mesh fabric. This is important as experience has shown that the more uniform the hole size the more uniform will be the resultant the paper density.  The single layer polyester forming fabric is the most uniform of all as it has only one hole size.

The length of the top surface of every knuckle that lies in the machine and cross machine direction, which directly supports the sheet.  In this case, it is expressed as inches length per polyester mesh fabric square inch of fabric surface. The fiber Length Support Ratio Takes the above numbers of support length and expresses it as a ratio CMD/MD.

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 forming fabrics,polyester mesh fabric