Abstract
The manufacturing technology for security printing has been improved by innovations several times. As a result, the characteristics of anti-counterfeiting security printing have been enhanced. On the other hand, because security design is always confronted with new counterfeiting methods, it is important to be equipped with advanced technology to meet the demands of the age. In the third collection, I explain anti-counterfeiting technologies that have been used for security, from the photomechanical processes that began in the 20th century to the current digital imaging technology to counteract copying and replication.
