| abstract |
A laminated polyester film which comprises a base polyester film and, formed on at least one surface thereof, a laminating membrane comprising two types of polyester resin, wherein said two types of polyester resin are a polyester resin (A) having a glass transition temperature of 60 ° C to 100 ° C and a polyester resin (B) having a glass transition temperature of 0 ° C to 60 ° C, the polyester resin (B) contains specific components in specific amounts, and the polyester resins (A) and (B) exhibit specific proportions of the amount of a sulfonate metal salt group-containing dicarboxylic acid component in the total amount of a dicarboxylic acid component. The laminated polyester film retains excellent characteristics inherent in the base polyester film and also exhibits satisfactory adhesion with various coatings, which has not been achieved by a conventional polyester film, and further has satisfactory anti-blocking property, transparency, scratch resistance and the like. |