| 摘要 |
PROBLEM TO BE SOLVED: To provide a laminated polyester film excellent in blocking resistance, flatness, winding properties and processability and excellent in electromagnetic conversion characteristics when used in a metal vapor deposition type magnetic recording medium. SOLUTION: In the laminated film wherein a polyester layer A, a polyester layer B and a coating layer C are laminated in this order, the polyester layer B contains 0.001-1 wt.% of inert particles with a mean particle size of 50-1,000 nm and the polyester layer A contains no inert particles or contains inert particles A having a mean particle size smaller than the mean particle size of the inert particles contained in the polyester layer B and the coating layer C contains 1-40 wt. % of a cellulose compound wherein the viscosity of a 3 wt.% aqueous solution at 20 deg.C is 10-1,000 Pa/s. |
