| 摘要 |
PURPOSE:To easily form an image of high picture quality with an excellent contrast by putting the image forming medium where a latent image is formed and an image receiving body one over the other and heating them under a specific condition, and transferring a heat-diffusing material to the image receiving body and forming an image. CONSTITUTION:The image forming medium is constituted by forming a coloring material layer 2 which contains the heat diffusing material and a polymerizing layer 1 which contains a polymerizing compound and a polymerization initiator on a base 3. Then the polymerizing layer 1 is exposed through a proper negative mask 4 to polymerize the polymerizing compound in the polymerized layer 1, thereby forming the latent image consisting of a polymerized part 1-a and an unpolymerized part 1-b. Then the image formed medium where the latent image is formed and the image receiving layer 6 on a base body 5 are put one over the other and heated under the heating condition shown in an expression I to diffuse and transfer the heat diffusing material that the image formed medium contains to the image receiving layer 6 through the polymerized layer 1. In the expression I, Ttrans shows the temperature of the image forming medium, Tg1 the glass dislocation temperature of the unpolymerized part 1b, and Tg2 the glass dislocation temperature of the polymerized part 1g. Consequently, the excellent image which has high contrast and no fogging is obtained. |
