... wood coloring, stamping materials, leather dyeing, plastic coating, printing ink, stationery, ink, metal, paint, eyeglasses, packaging paper, aluminum foil, vacuum plating ... cryogenic paint)4 metal complex dyes, specialty coatings5, ballpoint pen and a variety of stationery ink dye6, the plastic ... -based inks10, a printing ink used for other paper or metal surface with a metal complex dyes (such as ...