| 摘要 |
<p>A belt (16) for use on an extended nip press for dewatering a fibrous web (17) is shown. The belt (16) includes a base fabric (22) having machine-direction (24) and cross-machine direction (26) yarns and takes the form of an endless loop. Either the machine-direction (24), or the cross-machine direction (26), yarns are spun yarns of staple fibers (34). The base fabric (22) is completely coated and impregnated with a polymeric resin, such as polyurethane, to render it impervious to liquids, especially lubricating oil. The inner surface (20) of the resulting belt slides over the arcuate pressure shoe component (14) of the extended nip press during its operation. The outer surface (19) of the belt is provided with grooves (30) separated by land areas (32) which together define channels for water pressed from the fibrous web (17) in the press nip. The land areas are anchored to the belt by means of staple fibers (34) from the spun yarns embedded in the coating (28) and thus resist delamination.</p> |
