Polyester forming fabric market is dominated by SSB designs. Depending on geographic region, that is a market share of approximately 50-70%. The majority has changed little since its market introduction. Although there have been new developments in alternative binder yarn bindings and weaves, which increase the float on the bottom side, the original 1:1 warp ratio remains the central characteristic of almost all polyester forming fabric SSB products.

The main focus in SSB development has been on the design of different mesh structures, packaging grades, coarser products for board and increasingly finer mesh for high-end graphics papers. Finer mesh SSB products are especially attractive for paper manufacturers of lighter basis weight grades, which operate with mechanical pulp and increased filler levels, and producing coated grades.

Sheet porosity is critical here. Finer mesh products also offer potential retention benefits. Most polyester forming fabric manufacturers now also offer finer mesh SSB products for this market segment.

However, the main hurdle to wider acceptance of these finer SSB products is their stability and durability. Improvements in retention, sheet quality, and cleaner former operation are positive factors for paper manufacturers. Nevertheless, many customers in the competitive paper market are not prepared to accept the previously existing disadvantages to achieve their goals.

For this reason, many paper manufacturers have stayed with their standard 0.13/0.21 mm machine direction warp diameter and 58-60/cm warp density. To date, paper manufacturers have to choose between either fabric life, durability and stability or the improved performance characteristics associated with finer papermaking surfaces. Paper making fabric manufacturers were not able to combine all of these features into one design – until now.

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 forming fabric, paper making fabric