| abstract |
The multi-layered barrier polyester film having a first resin layer containing polyglycolic acid and a second resin layer containing aromatic polyester alternately stacked and having a content of polyglycolic acid in the total film of at least 5% by weight is hydrolyzable, It has excellent gas barrier property, moisture barrier property, transparency, peel strength and eco-friendliness, and is useful for packaging that can be stored for a long time. |