Decipherment manner and the latent image information decipherment device null wavelength field by the printed matter and the latent image information which include the latent image which is recorded by the print ink constituent and same ink

摘要

Responding to the excited wave length the wave length territory 600 - 850nm, the organic fluorophor which gives out the fluorescence the wave length territory 651 - 900nm, the ink composition for the latent image which includes the quencher, and the hardenable resin composition, the luminous element which irradiates the aforementioned excited wave length to the printed matter and that printed matter which include the latent image which was formed from the ink composition on the base substance and that base substance, the light absorbent element and that the luminous quantity etc inspects the fluorescence of the aforementioned wave length territory which is given out from the hardening ink of the printed matter of the fluorescence which is inspected and the latent image information decipherment device and the latent image information decipherment method of having the operational processor which it contrasts deciphers reference level. Not to be known the decision and the like of authenticity in the 3rd person, it can execute securely.