新型高温蒸煮袋用PEN薄膜

New PEN Film with High Temperature Retortable Pack

本文主要介绍聚萘二甲酸乙二酯（PEN）的特性，以及PEN国内外研究现状及应用，并介绍了新型高温蒸煮用PEN薄膜，在应用到高温蒸煮时的复合薄膜结构及复合工艺。

This essay mainly introduces the features of the polyethylene naphthalate （PEN）, and researching PEN development at home and abroad as well the applications of it. Finally, this essay brings up the new high-temperature retortable film with PEN, and briefly introduces the structure of the composite film as well composite technology.