For fragile items, the internal structure design of the corrugated packaging box plays a vital role, and it enhances the protection through a variety of clever design methods.
First, the corrugated packaging box often uses a partition design. These partitions can be thin plates made of corrugated cardboard, which are placed in parallel in the box at a certain distance. The partition divides the internal space of the box into multiple small spaces, and when fragile items are placed in them, the items are fixed in these small spaces. For example, for glass products, the partition can prevent them from colliding with each other during transportation. Once vibration or shaking occurs, the partition can limit the movement range of the items, prevent the items from directly hitting the inner wall of the box, and disperse the impact force that may be applied to the items.
Secondly, the use of pads is also a common means of protection. Pads can be made of soft corrugated cardboard or special foam corrugated materials. They are placed around fragile items, especially at the corners of the items. Because the corners are the most vulnerable parts in collisions, the pads are like a layer of soft protective armor in these places. For example, when packaging a ceramic vase, padding is filled at the bottom of the vase and around the body of the vase to absorb the impact force from the outside, play a buffering role, and reduce the damage of the impact force to fragile items.
Furthermore, some corrugated packaging boxes adopt a nested structure design. For fragile items with special shapes, such as irregular handicrafts, matching nested molds will be designed. This mold is made of corrugated cardboard, and the items can be embedded in it and fixed tightly. In this way, during transportation and handling, the items will not rub or collide with the packaging box due to shaking, ensuring the stability of the items in the packaging box.
In addition, some corrugated packaging boxes are also designed with a honeycomb structure. This structure is similar to the hexagonal unit of a honeycomb, and each unit can hold a small fragile item or a part of a larger item. The honeycomb structure has excellent mechanical properties, can evenly disperse pressure, and provide support and protection for fragile items from all directions, so that the items are not easily damaged when subjected to external forces.
Through these internal structure designs, the corrugated packaging box can effectively enhance the protection of fragile items and minimize the possibility of damage to fragile items during transportation, warehousing and handling.