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LATENT IMAGE PRINTED MATTER OF SOLID FORMULATION AND IMAGING METHOD THEREFOR, AND EXAMINATION METHOD FOR EDIBLE MATERIAL
LATENT IMAGE PRINTED MATTER OF SOLID FORMULATION AND IMAGING METHOD THEREFOR, AND EXAMINATION METHOD FOR EDIBLE MATERIAL
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机译:固体制剂的潜像打印材料及其成像方法,以及食用材料的检验方法
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摘要
Provided are a latent image printed matter of a solid formulation having on a surface thereof a latent image that can be made visible by irradiation of ultraviolet rays having a specific wavelength band, and an imaging method therefor. The latent image printed matter of a solid formulation according to the present invention is a 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 of 200 nm or more and less than 400 nm and a non-latent image region B that reflects ultraviolet rays having at least the above wavelength band and/or emits fluorescence; a difference in gradation value of the latent image region A with respect to the non-latent image region B when visible light is irradiated onto the latent image region A and the non-latent image region B is less than five; and the difference in gradation value of the latent image region A with respect to the non-latent image region B when light containing the ultraviolet rays having at least the above wavelength band is irradiated onto the latent image region A and the non-latent image region B is five or more.
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