PURPOSE: To obtain the photosensitive material which enables the miniaturization of a cartridge and has the high tear strength of perforations and the photosensitive material packaging unit with an exposing function.
CONSTITUTION: (1) The thickness of the base of the photographic sensitive material having at least one layer of silver halide emulsion layers on a base and has the perforations is ≤90μm and the parts of the perforations, which parts come into contact with the teeth of a sprocket during the traveling of a film is constituted of only the lines having ≥0.6mm radii of curvature (R1, R2). The thickness of the base is ≤90μm and the perforations are constituted of only the lines having ≥0.6mm radii of curvature (R1, R2). (2) The parts of the teeth of the sprocket, which parts come into contact with the perforations during the traveling of the film of the photosensitive material packaging unit with the exposing function having the sprocket are constituted of only the lines having ≥0.5mm radius of curvature. The teeth of the sprocket are constituted of only the lines having ≥0.5mm radius of curvature.
UEDA EIICHI
SHIBAZAKI OSAMU
