| 摘要 |
PURPOSE:To improve the durability of the surface of a carrier by mounting the hard coated layer on the surface of a carrier recorded the titled hologram thereon. CONSTITUTION:A volume phase type hologram is recorded on the recording carrier composed mainly of a vinyl carbazole type polymer, and the hard coated layer (A) is mounted on the surface of said carrier. The layer (A) comprises preferably an org. siloxane (such as an org. silane compd. shown by formula), and is formed by applying a solution of the obtd. org. siloxane on the surface of said carrier by a spray, followed by thermally treating the obtd. surface under a prescribed condition. In the formula, R' is methyl or ethyl group, R'' is H or methyl group, (n) is 1 or 2. And, said polymer may be composed of poly(N-vinyl carbazole), etc., and may contain carbon tetraiodide, etc. |
