| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an environmentally friendly water-repellent woven fabric having excellent water repellency, and to provide clothing using the water-repellent woven fabric. <P>SOLUTION: There is provided a water-repellent woven fabric to which a fluorine-based water-repellent agent having perfluorooctanoic acid and perfluorooctane sulfonic acid having a concentration of 0 to 5 ng/g is adhered. The woven fabric includes a composite yarn that is obtained by using a polyester filament A having a single filament fineness of 1.0 dtex or more and a polyester filament B having a single filament fineness of 0.4 dtex or less, and has a yarn length difference defined below of 5% or more. A composite yarn is extracted from the woven fabric, a weight of 0.1 cN (0.1 g)×(total fineness (dtex) of the composite yarn) is attached to the yarn, and the yarn is cut into 5 cm long. The polyester filament A (single yarn) and the polyester filament B (single yarn) are taken out from the cut composite yarn, a weight of 0.1 cN (0.1 g)×(single filament fineness (dtex)) is applied to each filament, the lengths of the filaments are measured, and the yarn length difference (%) is calculated by the following formula: (yarn length difference (%)=(LB-LA)/LA×100 where LA represents the yarn length (cm) of the polyester filament A and LB represents the yarn length (cm) of the polyester filament B). <P>COPYRIGHT: (C)2012,JPO&INPIT |
