What is moisture regain?

The moisture regain rate of textile materials when they reach equilibrium under standard atmosphere is called standard moisture regain rate. The actual moisture regain rate of each fiber and its products varies with the temperature and humidity conditions, in order to compare the moisture absorption capacity of various textile materials, it is compared with the moisture regain rate (standard moisture regain rate) measured after a specified time (balance) under unified standard atmospheric conditions.

Formula for calculating moisture regain

The weight of moisture in textile materials as a percentage of the dry weight of the material is called moisture regain. Moisture regain is widely used in the textile industry. If the dry weight of the specimen is G0 and the wet weight of the specimen is Ga, the moisture regain rate W is: