| 摘要 |
PURPOSE:To form a uniform org. dye layer without imparting damage to a substrate by coating the substrate with paint prepared by dissolving org. dye in a specific solvent to prepare an optical data recording medium provided with the org. dye layer. CONSTITUTION:An org. dye is dissolved in an org. solvent being a 4-6C chain compound having either one of a carbonyl group and a 2-3C ester group in the molecule thereof and having a hydroxyl group at either one of an alpha-position and a beta-position. This org. solvent solution of the org. dye is applied to a substrate composed of polycarbonate and dried to prepare an optical data recording medium having an org. dye layer formed thereto. As a suitable embodiment of the aforementioned org. solvent, there are diacetone alcohol, 4-hydroxy-2- butanone, 2-hydroxy-2-methyl-3-butane or the like. |
