Sales packaging, also known as inner packaging, is a package that directly touches a commodity and enters a retail outlet and a consumer directly meets the commodity. In addition to having the function of protecting the product, such a packaging should also have a promotion function. Therefore, there are high requirements for the packaging structure, decoration screen and text description.

In order to adapt sales packaging to the needs of the international market, the following requirements should be reflected in the design and production of sales packaging:
(1) Facilitate exhibition and sales.
(2) easy to identify products.
(3) easy to carry and use.
(4) Must have artistic attraction.

Sales packaging is a fusion of protection features and artistic beauty2