| 摘要 |
PURPOSE:To read and to prevent leakage of secret information by extraction of ink of a part thermally printed by a thermal head. CONSTITUTION:A thermal transfer sheet comprises a base film, a heat-fusible ink layer provided on one side surface of the film, and a layer for preventing sticking to a thermal head and provided on the other surface of the film wherein the ink layer and the preventive layer have the same color. |
