Invisible ink inkjet printer inks are UV fluorescence in the UV (200 ~ 400nm) irradiation, which could give visible light (400 ~ 800nm), showing the red, yellow, green, and blue fluorescence. Inkjet printing method to use because it is non-contact printing methods, it can be directly in a variety of shapes, different materials on the print logo, and because inkjet printer ink manufacturing process complicated, demanding, therefore, with the use of other printing as compared to the use of inkjet printer print logo can play better security results.