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Basic knowledge of textiles: moisture regain

The moisture regain of textile materials when they reach equilibrium in standard atmosphere is called standard moisture regain. The actual moisture regain 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, the moisture regain (standard moisture regain) measured after specified time under uniform standard atmospheric conditions is compared.

 

Calculation formula of moisture regain:

The percentage of the dry weight of a textile material by the weight of water is called moisture regain. Moisture recovery is widely used in the textile industry. Let the dry weight of the sample be G0, and the wet weight of the sample be Ga, then the moisture regain rate W is:


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