Laser holography printing film who can be used to RFID smart card

The utility model relates to a laser holography printing film who can be used to RFID smart card, it relates to the smart card field of making. The laser holography printing film of electroplating aluminium lamination commonly used is because interference and the barrier effect of its aluminium lamination to the radio frequency electromagnetic field for its radio frequency frequency and other communication indexs all receive the interference and the decay of certain degree, thereby make the unable normal clear of reading and writing function of smart card. The utility model discloses through testing repeatedly, found a metal indium and an indium ashbury metal that replaces aluminium, is the thickness of working as its plating layer 20 40 the within range of nanometer, its resistance are very big and the on -conductive is very little to the interference of radio frequency electromagnetic field to metal mirror effect and holographic rainbow effect still exist, can regard as the laser holography printing film of