Packaging bag is a kind of packaging design. In order to keep fresh and store food in life, product packaging bags are produced. Food packaging bags refer to film containers that are in direct contact with food and are used to hold and protect food. And its functions are: 1. Physical protection: Food stored in plastic packaging bags should avoid extrusion, impact, temperature difference and other phenomena. 2. Shell protection: The shell can separate food from oxygen, water vapor, stains, etc. Leak-proof is also a necessary factor in packaging design. Some packages include desiccants or deoxidizers to extend shelf life. Vacuum packing or removing the air from the bag is also the main method of food packaging, keeping the food clean, fresh and safe within the shelf life is the main function of the bag. 3. Put it in the same bag: Putting similar small objects into one bag is a good way to save volume, and powder and granular objects need to be packed. 4. Communicate information: Packaging and labeling tell people how to use, transport, recycle or dispose of the packaging or food. 5. Marketing: Marketing often uses package labels to encourage potential buyers to purchase the product. Packaging design has been an important and ever-changing phenomenon for decades. Marketing communications and graphic design are applied to the outer box and (for some reason) the highlight of the sales presentation. 6. Safety: Packaging can play an important role in reducing transportation safety risks, packaging bags can also prevent food from being classified into other commodities, and food packaging can also reduce the possibility of food being eaten illegally. Some food packages are strong and have anti-counterfeiting marks to protect the interests of merchants from loss. There can be labels such as laser marking, special color, SMS authentication, etc. on the packaging bag. In addition, in order to prevent theft, retailers put electronic monitoring labels on food packaging bags, waiting for consumers to take them to the outlet of the store for demagnetization. 7. Convenience: Packaging may have facilities for loading, unloading, stacking, displaying, selling, opening, repacking, use and reuse. 8. Portion control: Individual packaging helps to accurately control the overall situation. For example, salt can be packaged to know about inventory. It also makes it easy to calculate recent sales, such as dairy companies sending and recycling bottles instead of consumers filling them themselves. The above is what are the functions of “packaging bags” plastic packaging bags? “The entire content of “./www.jhxbzd.com/). Shenzhen yltpacking Plastic Products Co., Ltd., as a professional packaging bag with 19 years of experience in flexible packaging production Plate printing equipment can undertake the design of packaging bags in various industries and fields, and solve the problem of product marketing differentiation for your enterprise!