| 摘要 |
<p>A new film cassette assembly (1) comprises a thrust type cassette (3) and a roll of a photographic film (33) having particular properties. One such property is a low coefficient of friction between the emulsion side and back side of the film. In preferred embodiments the film has a stiffness sufficient to avoid buckling of the film when the film spool is rotated in the unwinding direction (11) and is very thin. Most preferably, it is formed from a hydrophilic copolyester having the desired stiffness.</p> |
