ASYMMETRICAL FABRICS COMPOSITION FOR WINDING APPLICATIONS IN PIPE RELINING

摘要

It relates to a continuous fabric for use in forming repair liners for reinforcing pipes. The fabric includes a top layer and one or more bottom layers. The width of the top layer is less than the width of the continuous fabric and the density of the top layer is less than the density of at least one of the at least one or more bottom layers. The top layer can also serve as a guide for winding the fabric in an overlapping pattern around the mandrel so that essentially only the top layer is visible in the fabric winding.