ANTI-COUNTER-FEIT PRINTS WITH MOIRE LATENT IMAGE AND MANUFACTURING METHOD THEREOF

摘要

The present invention relates to an anti-counterfeiting element and a method of manufacturing the same, which can prevent radiation forgery by a color copier (CLC series, CF80, A color 635) or a computer linked with a coherent light by causing optical interference and latent image to appear. Combining the optical interference pattern and the latent image pattern, the optical interference pattern is composed of a spiral circle (4) or a dense concentric circle (3) in which a spiral circle (2) or a partial dotted line (4) is combined on the ground (1) The thickness of the wire is 0.03 to 0.1 And caustic spacing is 0.17 to 0.26 , Dotted line length is 0.26 to 0.33 The interval between each circle is formed at equal intervals, and the latent image pattern is formed by inserting a non-paragraph into the pattern formed by the dotted line 5 on the ground 1 by angular transformation, and the dotted line thickness 0.03 to 0.08 lost upon copying to the ground. , Dashed line interval 0.22 to 0.28 , Dashed line length 0.20 to 0.27 Dashed line and dashed line thickness reproduced when copying 0.04 to 0.11 , Dotted line 0.30 to 0.38 , Dotted line length 0.34 to 0.41 Converts dashed line with angle conversion and applies line width 0.08 to 0.34 By combining the deceptive pattern with the deception pattern and copying it, the fan blade shape or wave pattern and the latent image ratio table (8, 9), which were invisible in the original copy, appeared in the counterfeit defense element and its manufacturing method. It is used for banknotes and securities.