Abstract
In order to observe moisture transfer characteristics of hydrous fibers used for next-to-skin wear, dry and moist pieces of felt cloth with different packing factors (P. F.) were examined.
1) There is some regular relationship between the hygroscopic amount and P. F. The sample with larger P. F. shows larger increase in the hygroscopic amount.
2) There is also some regular relationship between the amount of moisture transition and the air permeability. The sample with larger P. F. has smaller increase in the amount of moisture transition.
3) For dry samples, the hygroscopic effect is larger than moisture transition effect, and so the sample with larger P. F. shows larger total amount of moisture transfer.
In moist samples, there is a difference in the relations between P. F. values and hygroscopic quality and P. F. values and moisture transition. But the amount of total moisture transfer is almost constant for all P. F. values.
