Konjac glucomannan (KGM) membranes were prepared according to an L 8(4×2 4) orthogonal test plan. The relationship between conditions, which are swelling time, CMC, sorbitol and glycerine concentrations, and two values of tensile strength ( TS ) and folding endurance ( FE ) were investigated. Range analysis shows that the tendency and degree of different factors and levels affecting the two values are different. ANOVA shows that swelling time, sorbitol and glycerine have a significant effect on TS ...