| 摘要 |
PURPOSE:To protect a photograph from stains, deterioration in quality, deforma tion, scratches, abrasion, etc., and to enable it to be written on with a pencil, etc., by incorporating an inorg. and/or org. light-transmitting fine powder in a photohardenable resin compsn. CONSTITUTION:The photohardenable resin compsn. contains the inorg. and/or org. light-transmitting fine powder in an amt. of 0.5-75wt%, and when it is contained <0.5wt%, the protective film is too smooth to be written on with a pencil or the like, and when >75wt%, it can be easily written on with a pencil or the like, but the coat film is too hard, and becomes liable to crack and worse in transparency. Since the protective film is cross-linked by irradia tion with UV rays, it is enhanced in scratch resistance, as well as resistances to water, solvents, and chemicals, and various stains can be easily wiped off. |
