What is food traceability? Simply put, it is the data monitoring of the entire process of food production from the source to the market and finally to the terminal. Food buyers can grasp the production, delivery, ingredients, use date, quality inspection certificate, logistics certificate and other information of the food in the traceability label. Data and information are perfect to ensure the safety factor of each product, and the information is traced in detail, which is the significance of food traceability. The traceability label is the food two-dimensional traceability source code, and the traceability barcode is a food safety standard label compulsorily created by the Ministry of Industry and Information Technology of the People's Republic of China. The code stores the raw material, origin, delivery, use date, processing, logistics and other details of the product. The traceable marking coding equipment is to spray these QR codes/barcodes containing huge data information on food packaging or food labels. The printed QR codes/barcodes must ensure high definition and readability. Traceable marking inkjet equipment, namely UV inkjet printers combined with variable data technology to print food packaging, may be confused. The two-dimensional codes/barcodes commonly used in supermarkets seem to be basically the same, and there is no difference. In fact, the country’s regulations for one item, one code, the traceable code or barcode of food is unique, maybe you see two barcodes with the same style, but under the action of synthesis technology, its internal structure has been invisible to the naked eye. The difference. It can be said that bar codes and traceable source codes are exactly the identity cards of food. Maybe you think about it from another angle. Fingerprints look the same with the naked eye, but in fact, everyone’s fingerprints are unique. The traceability marking inkjet equipment is equipped with variable data processing to ensure that each traceable QR code printed is not repeated, unique, and rigorously coordinated with the food traceability system.