| 摘要 |
PURPOSE:To obtain the titled transfer sheet in which a latent image cannot be recognized unless a special solution is sprayed, by dissolving and dispersing a developer into waxes, printing it on the back surface of a supporting body, and forming an ordinary paper transfer type recording layer. CONSTITUTION:An ordinary paper transfer type recording layer is formed by dissolving or dispersing 5-50wt%, desirably 10-30wt%, (with respect to waxes) of an electron accepting developer (e.g. p-phenyl-phenol or the like) into waxes (e.g. erucic acid amide or the like), and printing the material on the back surface of a supporting body by hot melt printing. Thus an intended sheet is obtained. Then, the obtained sheet and ordinary paper are overlapped, pressure is applied by a ball point pen and the like from the surface of said transfer sheet, on which the material is not applied, and printing is performed. Thus, a latent image is obtained. The obtained latent image is colored by aspraing a solution which is obtained by dissolving an electrodonating colorless dye in a volatile organic solvent. Then a colored printed image can be recognized. |
