Press felt and method of manufacturing it

摘要

PCT No. PCT/SE91/00868 Sec. 371 Date Jun. 15, 1993 Sec. 102(e) Date Jun. 15, 1993 PCT Filed Dec. 17, 1991 PCT Pub. No. WO92/11411 PCT Pub. Date Jul. 9, 1992.A press felt is devised for use in a papermaking machine, and a method is provided for manufacturing such a press felt. The press felt comprises a base fabric which is made of fabric of yarn material and is endless in the machine direction of the press felt, and one or more layers of fiber material arranged on the base fabric. The base fabric of the press felt comprises at least one layer composed of a spirally-wound strip made of fabric of yarn material and having a width which is smaller than the width of the final base fabric. Longitudinal threads of the spirally-wound fabric strip of yarn material make an angle with the machine direction of the press felt. The fabric strip of yarn material may advantageously be flat-woven.