3-dimension crimp polyethylene-terephtalate multifilament for carpet

摘要

Disclosed is a 3-D crimp polyethylene terephthalate multifilament (BCF) having a stress-strain curve such that (a) it elongates less than 5.0 % when subjected to an initial stress of 1.0 g/d, (b) it has an initial modulus of 20 to 60 g/d, (c) it elongates at least 20 % when subjected to a stress region of 1.0 to 2.5 g/d and (d) it elongates from a tensile strength of at least 3.0 g/d to the tensile strength at break. The BCF has improved physical properties such as excellent flame retardancy, high toughness, improved crimp uniformity and improved compressive elasticity modulus.