| 摘要 |
PROBLEM TO BE SOLVED: To provide a single face corrugated board container having a curl part formed on an edge of a cylinder body made of single face corrugated board, and achieving a cushioning property by use of the single face corrugated board.SOLUTION: Crushed parts 35 are formed by pressing a range of a fixed width from at least one side edge in a direction where a plurality of waves 33 are extended, of a single face corrugated board 30 made by sticking a liner 32 onto one surface of a middle core 31 with the waves 33 repeatedly formed thereon, to crush the middle core toward the liner. A cylinder body having both edges opened in a direction where the waves 33 are extended is formed by curving the single face corrugated board 30 in a direction where the waves 33 are repeated. Curl parts are formed by curling the crushed parts 35 to the inside of the cylinder body, and an edge plate which closes one opening is locked to the curl part on the inside of the cylinder body. |
