| 摘要 |
PROBLEM TO BE SOLVED: To prevent a colored region from being viewed in a state before a sheet is separated by a separation line even while allowing the sheet to be separable by the separation line. SOLUTION: A forgery preventing sheet has two sheets 10a, 10b that are respectively formed with each perforation 11a, 11b and stuck to each other. Each perforation 11a, 11b respectively comprises each cut part 15a, 15b and each tie part 16a, 16b. Each perforation is respectively formed on the two sheets 10a, 10b so as to be overlapped with each other in a state that the two sheets 10a, 10b are stuck to each other. A colored region 12 is formed in a region, where each tie part 16a, 16b of the two sheets 10a, 10b faces each other, of the surface where the sheet 10b and the sheet 10a are stuck to each other. COPYRIGHT: (C)2011,JPO&INPIT |
