| abstract |
【Task】 Provided is a polyester film suitable for uses such as industrial materials, packaging materials, especially wallpaper materials for building materials, which require transparency, easy moldability, heat resistance, chemical resistance and adhesion. [Solution] A laminated polyester film having at least a three-layer structure of A / B / C, wherein the A layer is made of a highly crystalline polyester having a crystallinity parameter ΔTcg of 35 ° C. or less, and the glass transition of the B layer and the C layer Laminated polyester film characterized in that the temperatures (Tg (B) and Tg (C)) satisfy 15 ° C. ≦ Tg (B) ≦ 70 ° C. and −20 ° C. ≦ Tg (C) ≦ 30 ° C., respectively Selection diagram] None |