| 摘要 |
PROBLEM TO BE SOLVED: To obtain a film which can be folded in a good balance independently of the direction of folding by specifying the difference in folding angle between two different folding directions to a certain value or lower. SOLUTION: When this film, comprising a substrate film optionally having a coating layer formed on at least one side thereof, is folded in at least two directiones, the folding angles are 10-80 deg. and the difference between the folding angles is 20 deg. or lower. Pref. the substrate film mainly comprises a polyester resin, further contains a thermoplastic resin incompatible with the polyester resin and/or 3-39 wt.% particles having particle sizes of 0.01-20μm, is one oriented at least biaxially, and has many voids in the inside. The coating layer is formed pref. from at least one resin selected from among polyester resins, polyurethane resins, and acrylic resins and pref. contains particles having an average particle size of 0.3μm or higher. The apparent specific gravity of the film is pref. 0.6-1.3. |
