Polyester mesh for papermaking are formed of wires of metals or polyester resins. The present invention is applicable to both with excellent effects. In case of a metallic screen, it is driven at a high speed while being subjected to vigorous friction with suction boxes and other rolls and, moreover, the screen material is usually very susceptible to the friction. 

Therefore, the polyester mesh is worn away within a short period of time. Synthetic resin screen is soft and flexible, and particularly the screen woven of textile fibers has such defects as excessive elongation, creasing, widthwise contraction and deformation of texture and is unusable without further processing. It is then advisable to introduce a hydrophilic substance by using a resin or one particularly adhesive to such metallic or synthetic resin screen. In general synthetic resins are abrasion-resistant and a coated film of such synthetic resin on the surface of a metallic screen can prevent wear of the screen and make the latter highly acid-resistant. On the other hand, polyester resin screen can be freed from the above-mentioned defects by the impregnation or coating with a polyester resin.

Warps and wefts are thereby bonded to each other at intersections for protection against texture deformation, and filaments are impregnated and bound together for increased wear resistance, and stiffness is imparted to the screen as a whole in order to prevent excessive elongation, widthwise contraction, and crease development. However, mere coating with polyester resin may make the screen hard to moisten because of the hydrophobic property of polyester resin.

Anna
Sales Department
Hebei Defeng Polyester Fiber Co., Ltd
Add: Jingjiu Railway west, wugong town, Raoyang County
TEL: 86-311-67699480
FAX: 86-311-67699480
Website: www.china-polyestermesh.com. 
E-mail:anna@china-polyestermesh.com

Tag: polyester mesh