To investigate the effects of different structural parameters of C-flute corrugated paperboard on the cushioning performance of canned yellow peach.

According to the dimensions of metal cans containing yellow peach, a cushioning structure was constructed using C-flute corrugated paperboard. Drop tests were conducted to evaluate the cushioning performance under corner, edge and face drop conditions. The effects of buckle width, cushioning thickness and cushioning height on cushioning performance were analyzed by establishing acceleration variation curves. A ranking and scoring method were employed to optimize the structural parameters comprehensively, using paperboard consumption and cushioning performance as evaluation indices.

The optimal parameter combination was the buckle width of 20 mm, the cushioning thickness of 14 mm and the cushioning height of 20 mm. Under this condition, both good cushioning performance and reasonable material consumption were taken into account, and the cushioning effect was the best. When the cushioning thickness exceeded 14 mm, the performance improvement slowed down, and the acceleration rebounded obviously when the cushioning height exceeds 20 mm.

Among the 3 structural parameters, the buckle width and cushioning thickness have a significant effect on the cushioning performance, and the cushioning height has a relatively small effect. The acceleration value is larger in the corner and surface drop, and the protection of the corner and surface direction should be strengthened in the design. The optimized cushioning structure can not only give full play to the cushioning protection performance of C-flute corrugated paperboard, realize packaging reduction and integrity, but also take into account the requirements of economy and environmental protection.