| 摘要 |
PROBLEM TO BE SOLVED: To provide a laminated polyester film having hardly destructible projections uniform in height and excellent in abrasion resistance, transparency, slip properties, workability, dimensional stability or the like. SOLUTION: The laminated polyester film is obtained by laminating a polyester layer (A) on at least the single surface of a polyester layer (B). The polyester layer (A) contains inert particles with a void diameter ratio of 2.0 or less, and the melting point TmA of the polyester layer (A) and the melting point TmB of the polyester layer (B) satisfy the formula (1): TmB-80<=TmA<=TmB-10. The coefficient of the projection height distribution of at least the single surface of the film is not more than -10 and the average roughness Ra of the single surface of the film is not less than 10 nm.
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