公开(公告)号：GB2574539A

公开(公告)日：2019-12-11

申请号：GB201913221

申请日：2018-03-02

Applicant: KOREAMINT

Inventor： HAN SOL YOO ,  HYUK WON LEE ,  JEONG WOO HAN

IPC: B41M3/14 ,  B41M1/06 ,  B41M1/10 ,  B41M1/12 ,  B41M5/00

Abstract: The present invention provides: an anti-counterfeiting sheet in which first and second patterns are formed as a plurality of elements and blanks on both surfaces of a transparent substrate and are to be visually recognized through the blanks, such that, by means of an optical illusion according to a viewing angle, direction, and distance, the resolution of the patterns changes or the colors thereof change, or the patterns develop or a pattern shift occurs; and a manufacturing method therefor. According to the present invention, high anti-counterfeiting effects such as a color shift, a latent image, and a security window can be obtained without using an expensive special ink, carrying out a complicated printing process, or using a special material. In addition, authenticity can be easily identified by carrying out photography at a specific viewing angle, direction, and distance with a smartphone and the like.