| 摘要 |
PROBLEM TO BE SOLVED: To obtain an optical disk having a high-grade image like a golden disk by printing a pattern while using transparent ink becoming yellow orange color when it is printed on a white ground. SOLUTION: In the optical disk 1, A1 is made to be a metallic reflection layer 2 and a printed pattern 4 is provided on the surface opposite to a surface from which pin parts 10 are read out. Ink to be used for the pattern 4 is made by adding ink of transparent red to ink to transparent yellow and is an ink of transparent redish yellow color. When this ink is printed on an ordinary white paper, it is seen yellow orange color, but when it is printed on the protective layer 3 of a CD, since silver color of the metallic reflection layer 2 is also seen through this transparent ink, this ink is seen gold color as a whole. |
