The method of directly printing hologram, motion hologram, diffraction pattern or micro recording to produce optical effect.

摘要

It refers to a method of microlithography, in which holograms, dynamic holograms or diffraction patterns are directly reproduced on paper through the printing process. The relative humidity of paper is 60% to 80%. Then, the paper passes through a group of printing, including a printing cylinder and a compression cylinder, the temperature and paper pressure are 90-220 ℃ and 20-120 kg / mm2, respectively.