PROBLEM TO BE SOLVED: To provide latent image printed matter of a solid formulation having on a surface thereof a latent image that can be made visible by irradiation with ultraviolet rays having a specific wavelength band, and an imaging method therefor.SOLUTION: The latent image printed matter of a solid formulation according to the present invention is latent image printed matter of a solid formulation 10 having a latent image in at least a part of a surface thereof, characterized in that: the latent image printed matter includes at least a latent image region A in which a latent image is formed by a latent image ink layer 11 that absorbs ultraviolet rays having a wavelength band from 200 nm inclusive to 400 nm exclusive, and a non-latent image region B that reflects ultraviolet rays having at least the wavelength band and/or emits fluorescence a difference in the gradation value between the latent image region A and the non-latent image region B when the latent image region A and the non-latent image region B are irradiated with visible light is less than five and the difference in the gradation value between the latent image region A and the non-latent image region B when the latent image region A and the non-latent image region B are irradiated with light containing the ultraviolet rays having at least the wavelength band is five or more.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2019,JPO&INPIT【課題】特定の波長域の紫外線照射により顕像化することが可能な潜像が表面に設けられた固体製剤の潜像印刷物及びその撮像方法を提供する。【解決手段】本発明に係る固体製剤の潜像印刷物は、表面の少なくとも一部に潜像が設けられた固体製剤10の潜像印刷物であって、波長域が200nm以上400nm未満の範囲の紫外線を吸収する潜像インク層11により潜像が形成された潜像領域Aと、少なくとも上記波長域の紫外線を反射し、及び/又は蛍光を発する非潜像領域Bとを少なくとも有し、潜像領域A及び非潜像領域Bに可視光を照射した場合の非潜像領域Bに対する潜像領域Aの階調値の差が5未満であり、潜像領域A及び非潜像領域Bに少なくとも上記波長域の紫外線を含む光を照射した場合の非潜像領域Bに対する潜像領域Aの階調値の差が5以上であることを特徴とする。【選択図】 図1
