| 摘要 |
PROBLEM TO BE SOLVED: To provide a lid material for preventing a lower sheet from breaking when peeling an upper sheet so as to appear holes for draining boiled water or peeling to remove the lid material after draining the boiled water.SOLUTION: The lid material for a container of precooked food seals the upper end opening part of a container body and has a flat paper shape molded in a predetermined shape having a tab for opening at an outer circumferential edge. The lid material has a peelable area so as to be separated into the upper sheet and the lower sheet, and the boiled water draining holes are formed in the lower sheet within the peelable area. The lower sheet is a laminated body including a break preventing resin layer laminated by a melting resin pushing out laminate by using a T-die. The break preventing resin layer is an amorphous polyethylene terephthalate-based resin layer or an ethylene-vinyl alcohol copolymer layer. |
