Light-shielding packaging system for photosensitive web roll

摘要

A light-shielding packaging for a roll of continuous photosensitive web is composed of a tubular core having on each end a light-shielding flange disc; a roll of a continuous photosensitive web wound on the core, which has a diameter identical to a diameter of the flange disc [the photosensitive web has at its leading end a light-shielding leader sheet which has a length larger than circumferential length of the flange disc and a width larger than a width of the photosensitive web, whereby each side portion of the leader sheet extends beyond the periphery of the flange disc to reach the outer surface of the flange disc]; and an adapter of rigid resin which is composed of a hollow cylinder member having at its one end a flange member and which is attached to the core by inserting the cylinder member into the tubular core.