| 摘要 |
PURPOSE:To decrease the pulling resistance of a film package and to facilitate loading of films therein by folding the corner parts at the end of the film package toward the inside of the film package. CONSTITUTION:One end 58 of the film package 50 is sealed by welding, etc., and the other end 60 is initially held open. The two corner parts 62a, 62b are bent toward the inside of an aperture 64 at the end, by which folded parts 68a, 68b are substantially formed. The aperture 64 is phototightly welded by heat sealing, etc., to obtain a sealed part 66. The sealed part 66 is positioned nearer the film side than the front ends of the above-mentioned corner parts 62a, 62b. Large bulging of the film package 50 is, therefore, obviated and the generation of wrinkles at the time of folding is decreased. The pulling resistance of the film package 50 is thereby decreased and the film 54 can be smoothly loaded into the device. |
