Multiaxial textile resin base material and method of production thereof

A multiaxial fabric resin base material comprising a multiaxial fabric impregnated with a thermosetting resin (B),

• the multiaxial fabric comprising a laminated body comprising a multiaxial fabric base material comprising fiber bundle sheets layered at different angles,
• the fiber bundle sheets comprising unidirectionally aligned fiber bundles stitched with stitching yarns composed of a thermoplastic resin (A),
• the multiaxial fabric base material being penetrated in the thickness direction by other bodies of the stitching yarns,
• the laminated body being stitched with the other bodies of the stitching yarns such that the yarns reciprocate at predetermined intervals along the surface direction between the front surface and the back surface of the laminated body,
• the thermoplastic resin (A) having a softening point, the softening point being higher than the resin impregnation temperature of the thermosetting resin (B), wherein the thermoplastic resin (A) is composed of a thermoplastic polyester resin composition (C) having a carboxyl group concentration of 0 to 20 eq/t.