| 摘要 |
PROBLEM TO BE SOLVED: To obtain an admission ticket having high decorativeness and higher forgery preventive effect by transferring and printing an OVD(Optical Variable Device) transfer ribbon having two types or more OVD images by a thermal means, and forming a variable printed part with the image. SOLUTION: In the case of obtaining the admission ticket with an OVD image changing in an image or a color tone to be observed at an observing angle or the like, an OVD transfer ribbon 11 of a constitution having a plurality of element OVD images 12 is used. As the images 12, a plurality of diffraction gratings having different diffracting directions and space frequencies, diffraction grating images, rainbow hologram images, 3D hologram images or their combinations are used. To control a feeding mechanism of the ribbon 11, a register mark 13 is formed by the gratings, holograms, prints or the like. Such a transfer ribbon 11 is formed by providing an OVD layer through a release layer on a support and providing a back coating layer on the other surface of the support. |
