1. Physical protection
Stored in the bag of food need to avoid extrusion, impact, vibration, temperature and other phenomena.
2. Shell protection
Shell can make food and oxygen, water vapor, stains and other separated, anti-leakage is also a necessary factor in packaging design. Some packaging includes a desiccant or deoxidizer for extended shelf life. Vacuum packaging or pumping the air in the bag is also the main food packaging method. Preserving food in the shelf life of clean, fresh and safe is the primary function of the bag.
3. Package into the same package
The same kind of small objects into a package is a good way to save the volume. Powder and granular objects need to be packaged.
4. Communicate information
Packaging and labeling to tell people how packaging or food is used, transported, recycled or processed.
5. Marketing
Marketing often uses box labels to encourage potential buyers to buy goods. Packaging design for decades has become a pivotal and constantly changing phenomenon. Marketing communication and graphic design applied to the packaging box and (for some reason) sales show highlights.
6. safe
Packaging can play an important role in reducing transport safety risks. The bag can also prevent food from being returned to other goods. Food packaging can also reduce the possibility of food being stolen. Some food packaging is very strong and there are anti-counterfeit labels, the role is to protect the interests of businesses from loss. Packaging bags can have a laser logo, special color, SMS certification and other labels. Another retailer to prevent theft, food packaging bags affixed with electronic monitoring labels, and other consumers get the store's exports for degaussing.
7. Convenience
The packaging may be available for easy access, handling, stacking, display, sale, opening, reloading, use and reuse.
