NONWOVEN FABRIC AND METHOD FOR PRODUCING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a bulky nonwoven fabric having excellent heat and chemical resistances and to provide a method for producing the bulky nonwoven fabric. SOLUTION: The nonwoven fabric is formed from filaments having a melting liquid crystal-forming wholly aromatic polyester having a melt viscosity of 20 Pa s or less at 310°C or above as a main component and having an average fiber diameter of 1-15μm, and the principal plane has a plurality of peak parts 1. The apparent density of the nonwoven fabric is 0.01-0.3 g/cm. The ratio (Sm)/(Ym) of the average interval (Sm) of the apexes of the adjacent peak parts to the average height (Ym) of the plurality of peak parts may be about 0.02-100. COPYRIGHT: (C)2009,JPO&INPIT