MAGNETIC SECURITY ELEMENT HAVING THREE-DIMENSIONAL MOVING HIDDEN IMAGE EFFECT AND METHOD FOR PRINTING SAME
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United States of America Patent
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Aug 20, 2015
app pub date -
Sep 16, 2013
filing date -
Sep 14, 2012
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Abstract
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.
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