D - Textiles – Paper – 21 – F
Patent
D - Textiles, Paper
21
F
D21F 1/10 (2006.01) D03D 15/00 (2006.01) D03D 17/00 (2006.01) D21F 1/00 (2006.01)
Patent
CA 2103916
2103916 9215753 PCTABS00016 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 stretching potential for the belt.
Scapascandia Ab
Sim & Mcburney
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