Nanjing Huanyin anti-counterfeit technology Co., Ltd. is a national high-tech enterprise engaged in anti-counterfeit Traceability Technology of digital watermarktechnology. The company is the drafter of the national standard “ printing digital watermark anti-counterfeit (GB/T36303-2018)”. The technology has the characteristics of "information invisible, extremely difficult to copy, and big data collection". It has been applied in nearly 20 well-known products at home and abroad, such as "Yishilu" glasses, Nanjing cigarettes, several pharmaceutical packaging boxes and injection labels, Shanxi salt industry, etc., with good economic benefits, good effectsof anti-counterfeiting and traceability, and key technique has originality and is at the leading level in the field of anti-counterfeiting.