METHOD FOR PRODUCING GRAPHITE FILM METHOD FOR REWINDING SAME AND METHOD FOR PRODUCING GRAPHITE COMPOSITE FILM AND GRAPHITE-FREE PROCESSED PRODUCT

摘要

Graphite films exhibiting very low average tear (tear) load are susceptible to various defects such as tear defects, stitching defects, wrinkles defects and dimensional accuracy defects during their manufacturing and processing steps. Even in the case of such a graphite film, 1) the average tear load in the tear gas tearing test according to JIS K7128 is 0.08 N or less; 2) the sag in the evaluation of the rollability of the film according to JIS C2151 is 5 mm Or more and 80 mm or less can be used to suppress these defects.