Image forming body, the authenticity discriminating method and determines authenticity fixture

摘要

In the field of valuable printed banknotes, passports, securities, identification cards, a ticket or the like which is a security print which requires forgery prevention effect, in particular, one embodiment of the invention, the printed image The image forming material printed image is changed by addition, or appear in the image that are hidden visually on, superposed films or a particular filter, or tilting the print which is integrally formed with a film or filter , the present invention relates to authenticity discriminating method and determines authenticity equipment. On the first image by using a material with a color flip-flop property of the liquid crystal material such as pearl pigment, formed by a set of convex pixels and convex streak of a predetermined pitch, and the first image or transparent and an image forming member formed by using a second image by using a material of a different color from the color of the specular reflection when the material forming the, were formed at a pitch slightly different from the first image. Also, by controlling the change in shape or change in movement of the moire image by changing the little by little image elements one by one to form a moire, to adjust the pitch between images, the strain occurring in the moire image it and, to minimize, and streaked configured to control the speed of change and perspective of moire.