| 摘要 |
<p>PROBLEM TO BE SOLVED: To solve the problem that, in a scratch card, means for hiding secret information is a scratch hiding layer only and has a problem that an illegal person easily prepares an imitation easily pepped by others, and in addition, though a scratch card provided with a hologram layer in the uppermost layer is developed in order to prevent the imitation, since a third party can visually confirm the hologram layer, the illegal person can easily imitate the scratch card having the similar optical effect.SOLUTION: There is provided a scratch card having an excellent anti-counterfeit effect, in which a hologram layer and a scratch hiding part are buried in the base member of a scratch card and made to be flush with each other. The berried hologram layer and scratch hiding part are scratched, and secret information can be visually confirmed only after the scratched portion is imparted with heat treatment.</p> |
