Food packaging hides mystery, the ink jet printer itself is not wrong

Recently, the incident of milk tampering with the production date has aroused widespread concern among Hong Kong residents. Investigations show that the production dates currently used on food packaging bags are mainly ink jet coding, laser coding and steel printing coding. Among them, the production date of the ink printing can be altered with a paper towel moistened with water. The production date of the stamp is not easy to change, but due to cost and difficulty of operation, the utilization rate is low. The survey found that the production dates of bread, yogurt and other foods with a short shelf life are mostly printed with darker ink, which is the easiest to erase. Although the production date codes of canned food and other foods are also ink, they mostly rely on laser coding. Since the stamp production date is the least likely to be tampered with, why not popularize this coding method? According to a staff member of a related company, the current food factories mainly use ink-wheel coding machines, electric coding machines and steel-printing coding machines. Among them, the ink wheel coding machine is the cheapest, priced at 3,800 yuan, which is mostly used for plastic packaging; the highest price is the electric coding machine, which is 20,000 yuan, mainly for packaging various bottles, caps, cans, cups, etc. The product hits the production date. As food safety is now receiving more and more attention, when you go to the supermarket to buy something, everyone picks up the same product, especially those fresh and special products, and will subconsciously look at the production date and ingredient description. Now The component descriptions of the can be faked, and the production date can be the same. The current production date is generally operated by the production date inkjet printer, which is controlled by a single-chip or computer, and uses non-contact inkjet marking equipment. Although the information printed by the ink jet printer can be erased, if the most popular traceability system is used to identify the product, it can completely prevent the fraud of the identification information. When shopping, we just need to be more careful, no matter what kind of identification technology is used, general products can be authenticated. Manufacturers are pioneers in the industrial sign market. We produce and sell identification equipment, consumables and accessories for printing key product information for millions of users every day, and provide comprehensive after-sales service. The company's sales headquarters is located in Guangzhou, a beautiful and rich flower city in southern China, with more than 4,000 sales and service personnel in more than 100 countries around the world. Provide service and support to customers every day. The manufacturer has the world’s most complete product line of inkjet coding equipment, mainly producing: small character inkjet printers, large character inkjet printers, high resolution inkjet printers, micro-character inkjet printers, handheld inkjet printers, white ink and yellow ink inkjet printers Machine, inkjet printer supporting conveyor, and inkjet printer consumables. Through professional comprehensive services, manufacturers also provide solutions suitable for customers' production needs according to customers' special needs. As of 2014, the manufacturer's global installed capacity of inkjet printers reached 320,000 units.