Magnetic ink

Iron oxide black (Fe3O4) and iron oxide brown (Fe2O3)were added to the ink,and after magnetic field treatment,they were arranged magnetically to obtain a special anti-counterfeiting ink with high residual magnetism.The pattern or logo printed with this ink can be detected by a magnetic detector.The password and other information printed with it can be read out by a magnetic detector.
Color:black & brown
Printing way:Silk screen,Offset,UV offset,letterpress,UV flexo.