| 摘要 |
PROBLEM TO BE SOLVED: To provide a cushion envelope made by using a bubble sheet having a two-layer structure.SOLUTION: A cushion envelope (10) includes an exterior sheet made of paper (1), and an interior sheet made of a plastic bubble sheet (2) having two-layer structure composed of a cap film (Cf) and a back film (Bf). An inner face of the cushion envelope is composed of the back film, the paper (1) and the plastic bubble sheet (2) are bonded at least in both edges (3) and a bottom part (4) of the cushion envelope by heat-sealing, and the cap film contains 1-25 wt.% of hydrogenated petroleum resin. |
