Laminated structural body having unidirectionally arranged strands sandwiched between two web layers, and method of and apparatus for efficiently manufacturing such laminated structural body

摘要

A laminated structural body is manufactured by laminating unidirectionally arranged strands and a web such that two layers of the web sandwich the strands therebetween. A cylindrical web is delivered in a direction parallel to a central axis thereof. A polymer liquid is discharged from a spinning head, which is disposed in the cylindrical web and rotated about the central axis of the cylindrical web, toward an inner surface of the cylindrical web to spin strands of the discharged polymer liquid. The spun strands are arranged in a direction substantially parallel to the circumferential direction of the cylindrical web and laminated on the inner surface of the cylindrical web. The cylindrical web with the strands laminated thereon is folded flatwise to sandwich the strands between the two folded layers of the web.