POLYLACTIC ACID COMPOSITION AND FIBER COMPOSED OF THE SAME

摘要

A polylactic acid composition wherein a ratio (L/D) of an L-lactic acid unit and a D-lactic acid unit is from 30/70 to 70/30; a weight average molecular weight (Mw) is from 100, 000 to 300, 000; a stereocomplex crystal content (S) is 80% or more; a melting point (Tm) of a stereocomplex crystal is 200°C or higher; and a degree of randomization (R) is from 0.001 to less than 2.5%, and a fiber thereof.