| 摘要 |
PROBLEM TO BE SOLVED: To provide a biaxially oriented polyester laminate excellent in printability (dye and ink transfer receptivity) at a time of printing and the writing properties of a rear surface. SOLUTION: A laminated film has at least three layers, that is, A-, B- and C-layers and the apparent density (ρ) of the whole of the film is 0.6-1.3g/cm<3> and the concealability thereof is 0.6 or more. The A-layer is a polyester layer with surface center line average roughness (RaA) of 0.01-0.08μm and a b-value of 1.0 or less and constitutes a thermal recording receiving surface. The B-layer consists of polyester and a polymer incompatible with polyester and is the intermediate layer between the A- and C-layers. The C-layer is composed of a polyester layer with surface center line average roughness (RaC) of 0.10-0.50μm and has writing properties. |
