| 摘要 |
<p>A woven Fourdrinier fabric so constructed that it has a relatively long useful life. The fabric is characterized by having at least two interconnected plies with each ply being of a mesh weave and wherein the size and number of yarns per square inch thereof are such that each ply has at least about 9% open area for permitting drainage therethrough of liquid from a slurry used in the manufacture of paper and the like.</p> |
