摘要 |
PURPOSE:To improve the stability of the org. coloring substance against a light by incorporating jointly a specific compd. to the titled substance. CONSTITUTION:At least one kind of the compds. shown by the formula is used jointly with the org. coloring substance for the titled substance. The used amount of the metallic complex shown by the formula is preferably 5-300mol%, further preferably 10-200mol% on the weight basis of the org. coloring substance. Said org. coloring substance comprises all dyestuff classified according to a property of the dyestuff such as a basic dyestuff and an acidic dyestuff, etc. Said org. coloring substance has at least one of the max. absorption within a wavelength of from 300nm to 800nm, preferably from 400nm to 700nm, in a methanol solution of said org. coloring substance. |