... and a stronger fastness; compared with inorganic pigments, metal complex dyes easily dispersed, easy to penetrate, easy ... materials, leather dyeing, plastic coating, printing ink, stationery, ink, metal, paint, eyeglasses, packaging paper, aluminum foil, vacuum plating PVC ... (such as upholstery cryogenic paint)4 metal complex dyes, specialty coatings5, ballpoint pen and a variety of stationery ink ...