| 摘要 |
<p>PURPOSE:To prevent forgery or alteration by forming a pattern by the receiving layer formed on the surface of a substrate. CONSTITUTION:After a receiving layer 2 is formed on a substrate 1, a desired printing layer 3 is formed on the receiving layer 2 by a sublimation type thermal transfer method. Ink is thermally transferred to the surface of the receiving layer by various printing methods to appear as a pattern such as a desired character. If a pattern is formed by the receiving layer itself having the printing layer 3 formed thereon, the pattern such as a character visually looked by the printing layer and the pattern visually looked by the receiving layer are developed contrastingly. Therefore, even if printing is again performed, the pattern of the receiving layer can not be removed or it is difficult to again form the same pattern after removal and, therefore, forgery or alteration becomes difficult.</p> |
