Helical artificial turf fiber with anti-splicing agent

A method for manufacturing an artificial turf fiber that is under internal stress, the method comprising:

• creating a polymer mixture, the mixture comprising an anti-splicing agent;
• extruding the polymer mixture into a monofilament;
• quenching the monofilament;
• controlling equipment for processing the monofilament such that a temperature gradient is formed reproducibly in the cross-section of the monofilament;
• stretching the monofilament while the temperature gradient is present to form the monofilament into the artificial turf fiber, thereby introducing the internal stress into the fiber, wherein the internal stress is adapted to cause the artificial turf fiber, upon receiving heat treatment, to assume a helical shape.