Recently, nano-anti-wiping technology has been successfully developed in Hohhot and Lingle Economic Development Zone in Inner Mongolia, and it has achieved the transformation to actual productivity. The production date, origin, and other product information codes sprayed on the product packaging using nano-anti-wiper printing technology are referred to as “codes that cannot be alteredâ€.
In Helinger Economic Development Zone, the inventor of nano-anti-wiping technology and professor Li Hong from the Hong Kong Polytechnic University demonstrated the technology to reporters. The same packaging of two bags of milk, the outer packaging are printed on the date of manufacture, Li Hao successively wiped the spray code with acetone and other organic solvents on the production date, the production date on a bag of milk was wiped off easily, a bag of milk on the production The date cannot be erased regardless of the reagent used.
Li Wei said that many food packaging is printed on the production date using an ordinary inkjet machine, some unscrupulous merchants can easily modify the date of production information after the expiration of goods, continue to sell, which has brought food security risks. Nano anti-wiping technology solves long-term technical problems that cannot be solved such as food, medicine, and fast-moving consumer goods. It plays an important role in safeguarding consumer rights, regulating the order of the sales market, and preventing product chaining.
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