| 摘要 |
PROBLEM TO BE SOLVED: To provide a composite container in harmony with environments wherein paper and plastic of the composite container can be easily separated and sorted at the time of disposal, relating to the container comprising a primary vessel made of plastic covered by a secondary vessel made of paper from outside. SOLUTION: A joint 30 of a primary vessel of the composite container and a secondary vessel covering the outside of the primary vessel is in a dot-like joining pattern, while a ratio of an area of the joint 30 is 8 to 40% to a total area including the joint 30 and a non-joined part 32. In addition, adhesion strength of an entire body including the joint 30 being the dot-like pattern and the remaining non-joined part 32 is 80 to 350 gf/15 mm. |
