Artificial turf, pile yarn for artificial turf and process and spinneret for producing pile yarn

摘要

An artificial turf with high water rentivity. A cut pile is formed over the surface of a backing structure by implanting a multiplicity of tufts. Each tuft comprises one or a plurality of pile yarns. Each of the pile yarns is composed of one flat filament or a plurality of bundled flat filaments twisted and fixed in the twisted state into a slender form having an approximately spiral cross section. A pile yarn for such artificial turfs and a process for producing such a pile yarn.