Moisture regain of cotton yarn

- Aug 31, 2018-

There are many hydrophilic genes (- OH) in cotton fiber macromolecule, which have good hygroscopicity. The standard moisture regain rate of cotton fiber is 8.5%. The temperature and humidity of the air directly affect the state of suction and moisture release of cotton fibers. When the moisture absorption is equal to the moisture release, the moisture absorption equilibrium state is reached, and the cotton fiber can reach the equilibrium state after 6-8 hours in the normal environment.