In a paper machine, polyester mesh are orientated in the machine direction. It is therefore important that fabric structure has enough transversal weft yarns on the paper side, because they provide the fiber orientated in the warp direction with a better support. At the same time, it should be considered that the open area of the paper side remains sufficiently large to ensure the drainage capacity.

In the structure of the invention the open surface is the same as in the SSB structure to be compared, and the number of weft yarns on the paper side is 16 % higher. The structure of the invention achieves a better fibre support (SP figure) than the wire structures to be compared. A good fibre support is an essential factor in achieving unmarked paper. The structure according to the invention is as thin as a double layer wire structure. The best dry matter has conventionally been achieved with thin fabrics.

Although the structure of the invention is thin, its stability is clearly better than in the structures used today. One way to measure the firmness of the polyester mesh is to measure its stability. Stability expresses how great the displacement between the longitudinal and transversal yarns is under a particular load. The smaller the displacement, the more stable the fabric. In the comparison, the stability of the structure of the invention is the lowest, i.e. the structure is the most stable, which helps to achieve even paper profiles. In addition, a stable paper machine fabric runs straight in the paper machine and does not cause steering problems.

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 mesh