Why do many goods have cylindrical packaging?

The circular shape has bet deformation resistance,

A circle can get the maximum effective area and a cylinder can get the maximum effective volume.

Roundness can reduce the internal stress of packaging, and the upper and lower bottom surfaces can be cut separately; Only one rectangle is needed to roll up the rest, saving packaging materials, and the appearance design can be varied, which is not affected by multi-directional viewing.

Packaging, not only has the function of product protection, but also has a positive role in promoting. With the fierce market competition in recent years, more and more people are trying their best to make it play the latter role. Japanese scholar Yi Zhuozhi once put forward the principle of "striking, understanding and liking". In order to promote sales, eye-catching packaging should first attract consumers' attention, because only the goods that attract consumers' attention can be bought.