| 摘要 |
PURPOSE:To furnish the information recording carrier excellent in light resistance deteriorating property while keeping metallic luster, by forming a recording layer out of the mixture of specific cyanine coloring matter and bis(4- diethylaminodithiobenzyl) nickel. CONSTITUTION:The optical information recording carrier consisting of the signal recording layer formed on a transparent circular substrate, of which the signal recording layer is expressed by formula 1, consists of the mixture of the cyanine coloring matter having absorption characteristics in a semiconductor oscillating wavelength range and bis(4-diethylaminodithiobenzyl) nickel expressed by formula I. Bis(4-diethylaminodithiobenzyl) nickel is the material having an absorption wavelength in a range of 800-950nm. It is the coloring matter storing in operation of absorbing the laser beam required for recording and suitable for disturbing the light deterioration of cyanine coloring matter. The organic system coloring matter postscript type optical disk excellent in light resistance deteriorating property and stable for a long time can be obtained thereby. |
