| 摘要 |
PROBLEM TO BE SOLVED: To provide a layered film for packaging during sterilization with hydrogen peroxide water which is difficultly degraded when the film is subjected to sterilization with hydrogen peroxide water, and is excellent in flexibility and flexibly deformability, thereby being extremely suitable for packaging a fluid content such as a fluid food while subjecting the fluid content to sterilization with hydrogen peroxide water.SOLUTION: A layered film F for packaging during sterilization with hydrogen peroxide water contains an outer layer 1 of a polyester resin layer having a thickness of 9μm or less, an intermediate layer 2 of a polyamide resin layer, and an inner layer 3 of a polyolefin resin layer in which a content of additives is small. The intermediate layer 2 which is easily degraded by hydrogen peroxide water is protected by the outer layer 1 and the inner layer 3 which are difficultly degraded by hydrogen peroxide water and in the inner layer 3, a content of additives is small, so that the inner layer 3 takes in difficultly hydrogen peroxide water. Accordingly, when the layered film F is subjected to sterilization with hydrogen peroxide water, the layered film F is difficultly degraded. The outer layer 1 is a polyester resin layer having a thickness of 9μm or less and the intermediate layer 2 and the inner layer 3 are a flexible polyamide resin layer and a polyolefin resin layer respectively, so that the layered film F is excellent in flexibility and flexibly deformability and is suitable for packaging a fluid content such as a fluid food. |
