PRODUCTION METHOD OF RESIN COMPOSITE WITH FILM

PROBLEM TO BE SOLVED: To provide a production method of a long resin composite with a film, by which generation of wrinkles can be suppressed.SOLUTION: The production method of a resin composite 12 with a film includes: a step (I) of impregnating a long fibrous support body 5 with a coating liquid comprising a resin component or a polymerizable monomer, and a polymerization catalyst, while conveying the long fibrous support body in a given direction so as to obtain a long impregnated material 6; a step (II) of laminating long films 8a, 8b respectively on the top and back surfaces of the long impregnated material obtained in the step (I), while conveying the long impregnated material in a given direction so as to obtain a long impregnated material 10 with films; and a step (III) of heating the long impregnated material 10 with films obtained in the step (II) while conveying the impregnated material in a heating furnace 11. The obtained resin composite 12 with films satisfies a relational expression of 2.3×10