| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a method for creating a moire form effective for a duplication-proof printed matter by which it is possible to create a moire pattern with high design characteristics consisting of overprinted multilined patterns designed so that they have an area where an image is not resolved by a duplicator, and it is impossible to regenerate the duplication of printed matter by the duplicator as well as printed matter. SOLUTION: This moire form consists of a first wavy concentric multiline group which shows periodic and continuous variations of the radius of image line, interval between adjacent image lines and width of the adjacent lines and a second wavy concentric multiline group which shows an antiphase to the periodic phase of the radius of image line, interval between adjacent image lines and width of adjacent image lines and also their respective periodic and continuous variations. The centers of the first wavy concentric multiline group and the second wavy concentric multiline group are almost equally superposed over each other to realize the appearance of a moire form.</p> |
