Photographic film cartridge
AssigneeFuji Photo Film Co., Ltd.
InventorsHidetoshi Kawasaki, Kazunori Mizuno
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AssigneeFuji Photo Film Co., Ltd.
InventorsHidetoshi Kawasaki, Kazunori Mizuno
Estimating the term…
A photographic film cartridge includes a light-shielding cloth. The light-shielding cloth is subjected to napping with a coarse napping machine and then napping with a fine napping machine. The napping machines have napper rollers including a pile roller and a counter roller. The rotational speed of the pile roller of the fine napping machine is higher than that of the pile roller of the coarse napping machine, and the rotational speed of the counter roller of the coarse napping machine is higher than that of the counter roller of the fine napping machine. The napping is carried out so that the cloth thickness obtained by the fine napping machine is less than the cloth thickness obtained by the coarse napping machine. A further napping is carried out using the fine napping machine so that the cloth thickness is greater than that obtained by the coarse napping machine.
A photographic film cartridge comprising:
Dependencies are inferred from the claim text.