HEAT-SHRINKABLE POLYESTER FILM AND MANUFACTURING METHOD OF POLYESTER RESIN

摘要

PROBLEM TO BE SOLVED: To provide a heat-shrinkable polyester film capable of securing more excellent shrink finish appearance in high-speed shrinking operation. SOLUTION: The heat-shrinkable polyester film has a heat shrinkage ratio (A) of 50% or greater in the maximum shrinking direction when the film is shrunk in hot water of 95°C, a maximum heat shrinkage stress value (B) of 10 MPa or lower in the maximum shrinking direction of the film, and an intersection shrinkage ratio (C) of 10% or greater obtained by a specific method. COPYRIGHT: (C)2007,JPO&INPIT