| 摘要 |
[Problem] To provide a laminated polyester film which is a highly adhesive film for optical use that has high processability and excellent adhesion to a hardcoat layer, while suppressing interference patterns when used as a base for a hardcoat film for optical use, said laminated polyester film not only suppressing interference patterns but also having achieved adhesion in high temperature and high humidity environments and coatability by an in-line coating method at high levels. [Solution] A laminated polyester film obtained by laminating a lamination layer (C layer) on at least one surface of a polyester film, which is characterized in that the minimum value of the spectral reflectance (Rmin) on the C layer side at a wavelength from 500 nm to 650 nm is 4.0-6.0% (inclusive) and the amount of change (?r) of the spectral reflectance is 0.0-1.0% (inclusive). |
