SYNTHETIC FIBER CAPABLE OF ABSORBING AND DESORBING MOISTURE, ENTANGLED YARN BLEND USING THE SAME, KNITTED AND WOVEN GOODS USING THESAME, AND NONWOVEN FABRIC USING THE SAME

摘要

A synthetic fiber capable of absorbing and disabsorbing moisture comprising a component capable of absorbing and disabsorbing moisture and a fiber-forming polymer. The fiber of the present invention has a moisture absorption of 1.5% or more when it is allowed to reach a moisture equilibrium under the circumstance of 25 DEG C x 60%RH and then is allowed to stand for 30 min. under the circumstance of 34 DEG C x 90 %RH, and has a moisture disabsorption of 2% or more when it is allowed to reach a moisture equilibrium under the circumstance of 34 DEG C x 90%RH and then is allowed to stand for 30 min. under the circumstance of 25 DEG C x 60%RH. The fiber also has a value of -1 to 5 in terms of b value in the CIE-LAB color system when it is allowed to stand for 30 days.