At least in the specified section of the surface of the copy accounting table tupple null backing material which binds one end combining with the sheet and the reception sheet which

摘要

PROBLEM TO BE SOLVED: To prepare a fluorescent ink in which printing aptitude is excellent and the layer of the fluorescent ink is easily formed on a necessary part of a base material by a partial printing or spot printing, and further, the fluorescent ink of the layer is easily transferred to an accepting sheet even time elapses so that a filled-in code number can not be seen when the ink is applied to a code-number fill-in column in a card application form, or the like, and the filled-in code number can be seen only after UV ray irradiation so that hidden information can be secured and falsification and alternation are highly prevented, and also to provide a sheet using the same. SOLUTION: The fluorescent ink is prepared by formulating a porous fine particle and a fluorescent substance to a vehicle containing a glycol based solvent having a boiling temperature of =100 deg.C.