Nowadays, the Chinese market is still strongly poisoned by counterfeit and shoddy products: from the country’s macroeconomics affected by counterfeit and shoddy products to the damage to the brand image and credibility of companies, and sometimes even endangering consumers’ personal safety. Therefore, combating counterfeit and shoddy products is everyone's responsibility, and it is also an arduous task with a long way to go. In the fields of food, alcohol and medicine, due to the particularity of the products, the harm of fake and inferior products is self-evident. People have never slackened the prevention and crackdown on counterfeiting, but the effect has been minimal. At present, sticking anti-counterfeiting labels on products is the most widely used anti-counterfeiting measure. Anti-counterfeiting labels are not only expensive, but can only temporarily alleviate the appearance of counterfeit products, because shortly after the products are on the market, counterfeiters can imitate this type of packaging, and manufacturers are once again trapped in the circle of counterfeit and shoddy products. The advancement of coding technology has long surpassed its marking function. With high-tech inks, powerful software and advanced printing equipment, food, beverage and pharmaceutical companies can also use printing technology to achieve anti-counterfeiting. Coding technology can print a variety of information on the surface of the package, including bar codes, product identification, production date, etc., which can reach as many as five lines. If the manufacturer can edit and change the printed text at any time, then the counterfeiter will Had to give up because they could not print the correct information on the counterfeit products. At present, many inkjet printer manufacturers have introduced invisible inks with excellent anti-counterfeiting effects. The use of this ink will not affect the packaging design. This is because the information printed with these special inks is invisible in the sun, only through the purple light. It can only be seen under irradiation. Therefore, this invisible inkjet printer ink plays a good role in the field of anti-counterfeiting.