PRODUCTION OF PREPREG AND APPARATUS

摘要

PROBLEM TO BE SOLVED: To solve the problem of air flotation when the reversal of the passage for transporting a resin-impregnated base material is conducted by the air flotation. SOLUTION: In obtaining a prepreg by heat treating a resin-impregnated base material 3b while transporting it in its lengthwise direction, a transportation mode to shorten the length of a heating oven 4 by providing a reversal section 7 in the middle of the passage for transporting the resin-impregnated base material 3b is employed and, when the resin-impregnated resin base material 3b is allowed to pass out of contact with the reversal section 7 by jetting air against the resin-impregnated base material 3b from a peripheral guiding surface 7a of the reversal section 7, back-up rolls 10 for mechanically detaching the resin-impregnated base material 3b from the peripheral guiding surface 7a of the reversal section 7 are provided in the reversal section 7.