Mechanical properties measured by tensile test of Nylon6 fibers with various diameters have been examined in standard, wet, and water-immersed conditions. Tensile test in wet condition was performed under JIS L 1030. Tensile test in water-immersed condition was applied to the fibers dipped in water. Diameters of the fibers used for the tests were 2.5(super micro fiber), 9.1(micro fiber), 24 and 82μm. An influence of water evaporation to the mechanical properties measured in wet condition has been discussed, compared with those obtained in water-immersed condition.
