| abstract |
A reinforcing fiber substrate (11) formed by at leastna reinforcing fiber yarn group arranged with reinforcingnfiber yarns (12) in parallel to each other in onendirection, wherein a resin material (14) whose mainnconstituent is a thermoplastic resin is provided at 2 ton15% by weight at least on one surface of the reinforcingnfiber substrate (11), and the reinforcing fiber volumenfraction V pf of the reinforcing fiber substrate (11) is in anrange of 40 to 60%, a method to produce said reinforcingnfiber substrate and a composite material madentherefrom. A substrate excellent in handling property andna composite material excellent in mechanical propertiesncan be obtained. |