MIXED POLYMER MATERIAL WITH METAL POWDER FORMING PHOSPHOR BY LASER IRRADIATION

摘要

PROBLEM TO BE SOLVED: To provide a mixed polymer material with a metal powder forming phosphor by laser irradiation, the mixed polymer material preventing damage causing by laser beam irradiation on a surface of the polymer material due to mixing a metal powder pigment for improving the damage causing by the laser beam irradiation with the polymer material. SOLUTION: In the mixed polymer material with the metal powder comprising mixing the metal powder pigment for improving the damage causing by the laser beam irradiation with the polymer material forming phosphor by the laser beam, the laser beam irradiation is possible to impart information to the mixed polymer material with the metal powder pigment, and the imparted information is invisible in case of visible light irradiation, but becomes visible in case of ultraviolet rays irradiation.