① Realizing commodity value and use value is a means to improve commodity value;

② Protect commodities from natural factors such as sunlight, wind, rain and dust, and prevent losses such as volatilization, leakage, dissolution, pollution, collision, extrusion, loss and theft;

③ Facilitate the storage, transportation, adjustment and sales of circulation links such as loading and unloading, inventory, stacking, delivery, receiving, transshipment and sales inventory;

④ Beautifying goods and attracting customers are conducive to promotion.

⑤ Metaphor is more attractive or commercial value, used to dress up and beautify people or things

Packaging box refers to a series of activities to design and produce containers or bandages. As a supporting service industry of the national economy, with the continuous development and growth of China's socialist construction, especially since the reform and opening up, the packaging box industry has developed rapidly under the socialist market economic system, and is forming a modern technology and equipment dominated by paper, with a complete range of plastics, metal, glass, printing machinery and modern industrial system.

The development of packing box industry and technology promotes the scientific research of packing box and the formation of packing box science. The subject of packing box covers many aspects of knowledge, such as physics, chemistry, biology, humanities and art. It belongs to the comprehensive science in the interdisciplinary group. It organically absorbs and integrates the new theories, new materials, new technologies and new processes of different disciplines, and solves the comprehensive problems in the process of commodity protection, storage, transportation, promotion and circulation from the perspective of system engineering. The discipline of packaging box has many classifications, which are usually divided into packaging box materials, packaging box transportation, packaging box technology, packaging box design, packaging box management, packaging box decoration, packaging box detection, packaging box mechanics, etc. At present, more than 40 colleges and universities in China have set up the specialty of packaging box engineering, and the talent team of packaging box is growing day by day.

1. Natural function of packing box - that is, material function or practical function

A. Protection function: that is to protect the content, form, quality and performance of products and protect consumers from using products safely.

B. Convenient function: it is easy to open and use. It can be eaten after opening the package.

C. Easy to handle and load.

D. It is convenient for production, processing, turnover, loading, sealing, labeling, stacking, etc.

E. Promote the storage and identification of goods and commodity information.

F. Convenience store shelf display and sales.

G. It is easy for consumers to carry, open and use applications.

H. Promote the classification, recycling and treatment of packaging waste

2. Social function of packing box - also known as spiritual function or aesthetic function

A. Pin accessibility.

B. Guide consumers to correctly consume products through the graphical description of packaging boxes.

C. Reflect the cultural taste of specific commodities through packaging boxes, give people a pleasant feeling and create added value.

D. The packing box reflects the brand reputation of the enterprise and the political, economic, cultural and artistic appearance of a country and region.

E. Packaging box design and packaging management are related to the change of people's lifestyle and the protection of ecological environment.