MAGNETIC SECURITY ELEMENT HAVING THREE-DIMENSIONAL MOVING HIDDEN IMAGE EFFECT AND METHOD FOR PRINTING SAME

摘要

The present invention relates to a magnetic security element showing a three-dimensional (3D) moving hidden image effect and a method of printing the same, which comprises the steps of: printing a predetermined line pattern on the surface of a substrate using a magnetic ink; applying a magnetic field to the pattern-formed substrate; and drying and curing the substrate to which the magnetic field was applied. According to the present invention, a hidden image can be formed, which cannot be realized by copying and reversibly appears and disappears. Thus, the magnetic security element can be used to prevent forgery or alteration.

主权项

1. A magnetic security element having a 3D moving hidden image effect, comprising:
a substrate having an alternating pattern of a printed region and a non-printed region of a magnetic ink on surface of the substrate, wherein in case that a magnetic field is applied to the pattern-printed substrate by a magnet, a magnetically induced image is formed, thereby showing a 3D moving hidden image effect.