| 摘要 |
PROBLEM TO BE SOLVED: To provide a fabric substrate suitable for a substrate of FRP with portions different in mechanical property and to provide a method of knitting the same.SOLUTION: A fabric substrate knitted by use of flat-knitting machine comprises: a plurality of first base yarns 10 made of a reinforcing fiber arranged in parallel in a prescribed direction; a second base yarn 20 made of a reinforcing fiber with a plurality of linear parts 21 which is arranged in a crosswise direction with the first base yarn 10; and a fixing yarn 30 for fixing the intersections of both base yarns 10,20 by the formation of the fabric. The fabric substrate 1 has a high strength portion 2 and a low strength portion 3. The fixing yarn 30 has a high strength fixing yarn 31 and a low strength fixing yarn 32 that are different from each other in their tensile strength. Further the high strength fixing yarn 31 is positioned in a high strength portion 2 and the low strength fixing yarn 32 is positioned in a low strength portion 3. |
