PingWei Anti-forgery Ink Limited

How do you Gravure make optical variable printing ink
 1000g optical variable ink 
◊ Liquid crystal: cream color, can silk-screen, intaglio printing, have to print the deep color bottom, like dark red, dark blue, black, the black effect is best, if silk-screen suggests use 150 items silk screen printing.
◊ Mica: cream color, may silk-screen, intaglio, double change color must print the deep color bottom, like dark red, dark blue, black, the black effect is best; The list changes color the printing white bottom. If silk-screen suggested uses 200 item silk-screen printing