| 摘要 |
PURPOSE:To provide a high-density high-sensitivity recording medium, by laminating a layer comprising a monomolecular film of a diacetylene derivative compound or a built-up film thereof and layer comprising an azulenium salt compound. CONSTITUTION:A diacetylene derivative compound is dissolved in a solvent such as chloroform, and the resultant solution is developed on an aqueous phase 10 to form a film. Next, a partition plate 3 is provided to restrict the developing area, thereby obtaining a desired surface pressure pi. While maintaining the surface pressure, a clean carrier (base) 11 is slowly moved up and down, where by a monomolecular film of the diacetylene derivative compound is transferred onto the carrier (base) 11. A layer B, or radiation-absorbing layer, consists of an azulenium salt compound, and may be prepared by the LB method, a spinner rotary coating method, a roller coating method, a pulling coating method, sputtering, plasma polymerization or the like. When the colorless trans parent recording layer 15 is irradiated with UV rays, the diacetylene derivative compound is polymerized to be polydiacetylene derivative compound, accompa nied by a color turning to blue. |
