公开(公告)号：US20210168260A1

公开(公告)日：2021-06-03

申请号：US17265752

申请日：2019-09-19

申请人： KOREA MINTING, SECURITY PRINTING ID CARD OPERATING CORP

发明人： Chang Jin OH ,  Jong Gap JEONG ,  Gwang Hui HONG ,  Hui Seung SON ,  Hyeon Jun KIM

IPC分类号： H04N1/32 ,  B42D25/405 ,  B41M3/14

摘要： Disclosed is an anti-counterfeiting printed material including: a background part for analyzing a distribution of Cyan Magenta Yellow Black (C/M/Y/K) after performing first color separation of an original image into C/M/Y/K, and printing the original image as C/M/Y/K lines each having an included angle preset according to each distribution; and a latent image part formed in a first region of the background part, and printed with the number of C/M/Y/K lines in a ratio different from the number of C/M/Y/K lines of the background part according to each distribution by performing secondary color separation, into C/M/Y/K, of a second region spaced apart from the first region by a preset distance.