| 摘要 |
PROBLEM TO BE SOLVED: To provide a lid material which is capable of maintaining the shape retaining properties of a container by preventing paper separation or the water absorption of a flanged part from occurring at the time of opening the lid, in the lid material which hermetically seals a container made mainly of paper and still enables the sealed part to be easily opened. SOLUTION: This lid material 10 which is hermetically sealed with the flanged part 17 of a container 15, consists of a basic material 1, an easily separable layer 3 of polymery polymer alloy or a polymer blend, and a heat sealable layer 5 which can be thermally stuck to the flanged part 17 and easily cut. |
