| 摘要 |
<p>PURPOSE: To provide a magnetic card having forgery preventing effect capable of easily discriminating a truth or a falsehood by a visual observation. CONSTITUTION: The magnetic card comprises a magnetic layer 2 provided at the upper part of a base material layer 1, a concealing layer 5 mixed with a visible light absorption part provided at the upper part from the layer 2, a hue change ink layer 6 having hue changing according to the angle of observing provided at the upper part from the layer 5, the layer 2 provided at the upper part from the layer 1, a concealing layer 5' provided at the upper part from the layer 2, a visible light absorption layer 7 provided at the upper part from the layer 5', and the hue change ink layer 6 having hue varying according to the angle to be observed and provided at the upper part from the layer 7.</p> |
