Patent ID: 11965069
Assignee: FAR EASTERN NEW CENTURY CORPORATION
Field: Other special machines (Mechanical engineering)
Classification: CPC C | IPC C

Claim 1:
2. The heat-shrinkable polyester film according to claim 1, wherein said exothermic crystallization peak and said endothermic melting peak further satisfy relationships of

160° C.≤Tm≤220° C.,

130° C.≥Tch≥110° C., and

|Hm−Hch|≤9.0 J/g,

where
Tm represents a maximum point of said endothermic melting peak;
Tch represents a maximum point of said exothermic crystallization peak;
Hm represents a melting enthalpy calculated from said endothermic melting peak; and
Hch represents a crystallization enthalpy calculated from said exothermic crystallization peak.