| abstract |
A woven or knitted fabric, formed from two types of yarns different in self-elongating property upon absorbing water and capable of facilitating the air-permeability when wetted with water, is constituted so that a ratio A/B of a mean length A of high water-absorbing, self-elongating yarns ( 1 ) to a mean length B of lower water-absorbing, self-elongating yarns ( 2 ) arranged in the same direction as that of the yarn ( 1 ) property is adjusted to 0.9 or less, the wetted fabric exhibits a change in roughness of 5% or more. |