Metal complex dyes: Which have good solubility in a wide range of organic solvents and excellent light stability with maintaining brilliant color shade against organic pigment and azo dyes.The chemicals bonds between metal like copper, chromium or cobalt and basically dye make light fastness further strong.Application:Printing inkSolvent-base inkGravure inkCoatingWood stainAluminium foilMetalized filmBall point pen inkMetallic yarn & glitter powder