| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a laminated polyester film having high shielding performance and excellent reflection characteristics in a specified range of thicknesses and combining antistatic performance. <P>SOLUTION: The laminated polyester film includes a polyester type resin layer (A layer) containing 3-30 wt.% of a white pigment of an average particle size of 0.1-1.0 μm and 400-5,000 ppm of a fluorescent whitener, on at least one side of a polyester type resin layer (B layer) containing a shading agent. It has a total thickness of 20-40 μm, an optical density (OD) of 4.0-8.0 and a spectral reflectance of the surface of the A layer to the 460-nm light ray of 85-105%. It has a coating layer on at least one side of the A layer, and the coating layer has a surface specific resistivity of 1×10<SP>6</SP>to 1×10<SP>12</SP>Ω. <P>COPYRIGHT: (C)2009,JPO&INPIT |
