Fourdrinier, especially for a papermaking machine to produce toilet paper, is of two bonded woven layers with an increased weft count in the upper layer

摘要

The fourdrinier, for a papermaking machine, is composed of two woven layers with warps and wefts where the warps are identical in both layers but the upper layer has more wefts than the lower layer in a ratio of the upper wefts (121-130) to the lower wefts (141-145) of 2:1. The two layers are held together by bonding filaments, using the warps in pairs (101-110) or additional wefts. The weaves are structured to leave spaces between the warps and weft for the water to escape from the pulp.