PRINTED OBJECT
    6.
    发明申请

    公开(公告)号:US20220348034A1

    公开(公告)日:2022-11-03

    申请号:US17640563

    申请日:2020-09-01

    Abstract: A printed object includes a substrate and a first information code disposed on the substrate, wherein: the first information code is constituted of an infrared ray-absorptive ink layer that has been printed with an infrared ray absorptive ink; and the infrared ray absorptive ink layer is configured such that, when a laminated body constituted of a test substrate made of the same material as that of the substrate, and a test infrared absorptive ink layer made of the same material as that of the infrared ray absorptive ink layer and disposed on the test substrate is subjected to a relative spectral reflectivity measurement on the test infrared ray absorptive ink layer side, with the test substrate as the reference (100% reflectivity), the minimum relative reflectivity in the visible region is 50% or higher, and the minimum relative reflectivity in the infrared region is 75% or lower.

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