| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a lid material which can be sealed by a single step of sealing and peeled while satisfying both peeling aptitude and resistance to contents. <P>SOLUTION: The lid material for covering the opening of a plastic molded container with a flange and hermetically sealed with the flange provided along the periphery of the molded container is constituted of a layer structure including, from the outside of the container, a base film (11), the barrier layer (12), and a co-extruded film layer (13) which are sequentially laminated. The co-extruded film layer (13) consists of a two-layered structure including a PP resin layer and a mixed resin layer of a low density polyethylene (LDPE) resin and a linear low density polyethylene (LLDPE) resin, or a three-layered structure including the PP resin layer, the mixed resin layer of the LDPE resin and the LLDPE resin, and a PE-based resin layer. <P>COPYRIGHT: (C)2004,JPO |
