| 摘要 |
<p>PCT No. PCT/SE92/00115 Sec. 371 Date Aug. 25, 1993 Sec. 102(e) Date Aug. 25, 1993 PCT Filed Nov. 30, 1993 PCT Pub. No. WO92/15753 PCT Pub. Date Sep. 17, 1992.In a woven fabric fourdrinier forming belt (1) for a cellulose drying machine, the majority of the longitudinal wires in the weave are made from polyamide. To achieve that the finished belt has an elongation of at most 5% from loose, dry belt to tensioned wet belt, the longitudinal threads are made from a polyamide where the radio between the number of methylene groups and amide groups has a quotient of at least 7. The belt is round woven to a weaving pattern where the longitudinal threads (2) extend in two or more layers. In addition, the belt is stabilized by heating, pressing and stretching such as to obtain a ratio between knuckle height, measured on the inside of the threads, and total belt thickness has a quotient of at most 0.15 for all longitudinal threads (2). The belt has good wear resistance and low extensibility, and is suitable for cellulose driers having limited streteching potential for the belt.</p> |
