PROCEDURE TO BOND A LAYER OF PERMEABLE MATERIAL TO A BASE FABRIC MADE OF INTERLACED YARNS; AND FELTS FOR PAPER MACHINES AND FILTER FABRICS MANUFACTURED ACCORDINGLY

摘要

A process for producing a dewatering felt through a bonding technique is disclosed. According to the disclosed technique, selected bonding yarns are provided in the weave of a base fabric. The bonding yarns have a fusion point lower than the non-selected yarns so that at elevated temperatures they may be used to bond a permeable layer to the base fabric without damage to the mechanical and/or chemical qualities of the non-selected yarns.