ELASTIC MONOFILAMENT

摘要

The present invention provides an elastic monofilament particularly excellent in resistance to permanent set in fatigue in a bending direction, elasticity, and creep property after subjected to a high temperature. The elastic monofilament of the present invention is an elastic monofilament having a core-sheath composite structure, wherein a ratio of a core component is 2 to 40% by volume, the core component is a thermoplastic polyester having, in a polymer, 95 to 100% by mass of a thermoplastic polyester unit, and a sheath component is a copolymeric thermoplastic elastomer having a hard segment and a soft segment, and wherein the monofilament has a diameter of 0.1 to 1.0 mm, and a tensile strength of 0.3 to 3.0 cN/dtex.