POLYESTER FILM FOR WRAPPING

摘要

PROBLEM TO BE SOLVED: To obtain a polyester film for wrapping which has superior adhesiveness, oligomer sealing property, scrape resistance, and gas barrier property. SOLUTION: The polyester film for wrapping consists of a biaxial-orientation polyester film manufactured by a consecutive film formation method. The dimension change rate of the film when it is heated consecutively at temperature from 100°C to 190°C is constantly -0.05%/°C or more to less than 0.03%/°C in the longitudinal direction of the consecutive film formation. The number of coarse particle 50μm or more in size contained in the film is 10/m2or less. COPYRIGHT: (C)2003,JPO