Functions of packaging bags

　　1. Physical protection: Objects stored in bags shall be free from extrusion, impact, vibration, temperature change, etc.

　　2. Shell protection: the box can isolate articles from oxygen, steam, stains, etc. Some packages contain desiccants or deoxidizers that extend the life of the product. Vacuum packaging or extracting gas from the bag is also the main way of packaging. It is important to keep clean, fresh and safe during the shelf life.

　　3. Encapsulate or put in the same bag: It is a good way to save space by putting the same type of items into one bag. Powders and granules must be packed.

　　4. Message: Bags and labels tell people how to use, transport, recycle or dispose of packaging.

　　5. Marketing: Marketing often uses packaging labels to attract potential consumers. For decades, packaging design has been an important and constantly changing phenomenon. The application of market communication and graphic design in the outer packaging box, and (for some reasons) the sales display.

　　6. Safety: Packaging can play a great role in reducing transportation safety. It can also prevent packaging bags from being classified as other items. Some packages are very strong, with anti-counterfeiting marks on them, so as to prevent consumers from losing. The package can have laser signs, special colors, SMS verification, etc. In addition, in order to prevent theft, retailers attached electronic monitoring labels on the packaging bags and demagnetized them after customers brought them to the store.

　　7. Convenience: The package shall have the functions of easy addition, handling, stacking, display, sale, opening, reinstallation, use and reuse.

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