| 摘要 |
PROBLEM TO BE SOLVED: To provide a printing paper, a printed matter and a printing system which can be easily prepared if there exist an exclusive paper and an exclusive printer and by which a copied article can be easily discriminated without using a special instrument and forgery can be easily prevented from occurring if only the printing paper is controlled. SOLUTION: The printing paper (1) is constituted by providing a heat- sensitive color developing layer (4) in which no change is generated by heat transfer treatment and volume is increased by heat treatment through a printing image forming body between a paper base (2) and the printing image forming body (3) on which a printing image (12) is formed by heat transfer treatment and after printing treatment, by heating the heat-sensitive color developing layer (4), a transparent image (11) is formed to provide a printed matter (10). |
