Table 1. Tensile Stress and Elongation Rate of Each Fabric.

hydrolyzed PES fabric	tensile stress (N)	elongation rate (%)
bare PES fabric	520	64.5
6 wt % of NaOH	425	59.9
9 wt % of NaOH	328	55.0
12 wt % of NaOH	305	54.8