The present invention provides a fabric for a papermaking machine. The fabric includes a machine facing side and a web facing side having pockets formed by warp and weft yarns. Each pocket is defined by four sides on the web facing side, three of the four sides each being formed by a knuckle of a single...http://www.google.es/patents/US8114254?utm_source=gb-gplus-sharePatente US8114254 - Structured forming fabric, papermaking machine, and method
Structured forming fabric, papermaking machine, and method