| 摘要 |
PROBLEM TO BE SOLVED: To provide a polyester film being excellent in running and smoothing, and being suitable for a process paper used when a high density DVD light transmission protection layer is prepared. SOLUTION: This film is the laminating polyester film used for the process paper of the high density DVD light transmission protection layer, and average roughness of a center plane (SRa(A)) of one film plane (A plane) is 20 nm or less, and average roughness of a center plane (SRa(C)) of the other film plane (C plane) is larger than SRa(A). COPYRIGHT: (C)2005,JPO&NCIPI
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