1. Protective performance: It has a certain mechanical strength, and must be waterproof, moisture-proof, cloudy, and corrosion-resistant.
2. Operation performance: It must have a certain degree of rigidity and stiffness, which can be adapted to automatic packaging by packaging machinery, heat-sealing mechanical sealing, and bag making; easy to fill the contents and easy to open.
3. Transmission and storage performance: The packaging must have a certain compressive strength, not easy to break when subjected to general pressure, and not easy to break during handling; it must have a geometric shape to facilitate accumulation and other properties.
4. Promotional performance: novel styles, beautiful decoration and printing, which are in line with consumers' hobbies in the sales area; no static electricity to avoid dust pollution.
5. Cost saving: reduce the consumption of raw materials, reduce equipment costs, achieve low prices and good quality, and improve market competitiveness.

