Product packaging refers to the process of product transportation, storage, sale and other circulation processes in order to protect the product, facilitate storage and promote sales. 1. Realizing commodity value and use value is also a means of increasing commodity value. 2. Protect products from natural factors such as sun, rain, dust and pollution. 3. Bring convenience to the storage, transportation, adjustment and sales of products in the circulation process. 4. Beautify products, attract customers, and facilitate promotion.