An optical information medium having an ink-accepting layer that may secure a high-gloss printed surface similar to print image quality of print image on photographic paper is provided. The optical disk 1 is constituted by sequentially laminating concave-convex information pits 3, a recording layer 4, a reflective layer 5, a protective layer 6, a second printing layer 7, and an ink-accepting layer 8 on a transparent substrate 2 made of synthetic resin such as polycarbonate.
In formation of the above described ink-accepting layer 8,
A. Urethane acrylate: 5 to 15
B. Water-soluble monomer: 70 to 80
C. Water-soluble monomer soluble resin: 5 to 15
D. Photopolymerization initiator: 5 to 15
E. Dyestuff fixing agent: 5 to 15
F. Silica: <5
were milled to prepare an ink for printing (unit; percent by weight).
本发明提供了一种光学信息介质,该介质具有可确保高光印刷表面的油墨接受层,其印刷质量类似于相纸上的印刷图像。光盘 1 由在聚
碳酸酯等合成
树脂制成的透明基板 2 上依次层压凹凸信息凹坑 3、记录层 4、反射层 5、保护层 6、第二印刷层 7 和油墨接受层 8 构成。
在形成上述油墨接受层 8 时、
A.
丙烯酸聚
氨酯:5 至 15
B.
水溶性单体70 至 80
C.
水溶性单体可溶
树脂:5 至 15
D.光聚合
引发剂5 至 15
E.
染料固色剂:5 至 15
F.
二氧化硅<5
研磨,以制备用于印刷的油墨(单位;重量百分比)。