| 摘要 |
<p>A cloth having a high tear resistance and suitable for sport gears such as yacht sails, para-gliders and hang-gliders that billow in the wind contains polyester fibers as a main constituent component, as well as a woven fabric that satisfies all of the following relations: (1) 100 >/= cloth weight (g/m<2>) >/= 20, (2) breaking strength (kg/5cm) >/= 30, (3) degree of extension at breaking (%) >/= 18, (4) burst strength (kg/cm<2>) >/= 0.18, (5) tear strength (kg) >/= 1.0, (6) gas permeability (ml/cm<2>/second) </= 1.0; and preferably the above polyester fibers have an intrinsic viscosity of 0.95 to 0.7, a single fiber finess of 1.5 to 3.0, a breaking strength of equal to or more than 6.0 g/de, and a degree of extension at breaking of equal to or more than 20.0 %, with an inclination A at a degree of extension % of the load-degree of extension curve being equal to or more than 1.0 and a ratio B/A of a minimum inclination value B at a degree of extension of 0 to 4 % to the above inclination A ranging from 0.2 to 0.5. <IMAGE></p> |
