Method of manufacturing anti-counterfeiting plate by virtue of electric plating and electric carving

Abstract

The invention relates to a method of manufacturing an anti-counterfeiting plate by virtue of electric plating and electric carving. The method comprises the following steps: manufacturing a printing plate matrix and plating copper to a printing plate roller; plating chrome on the copper layer of the plate, wherein the thickness of the chrome coating is between 0.1 and 0.2mu m; manufacturing an printing plate image on the printing plate roller in an electric carving manner, forming a V-shaped internet point on the surface of the printing plate roller; corroding the printing plate roller with a carved V-shaped internet point, deepening and widening the printing plate copper layer corresponding to the V-shaped internet point by virtue of corrosion to expand the volume of the internet point; corroding copper by adopting 38wt% of ferric trichloride in electric plating for 10-15 seconds; cleaning chrome; plating chrome for the second time; and polishing chrome. In a gravure roller prepared by the method, the internet point volume and the ink capacity are large, the internet point ink content obtained by adopting the post-chrome corrosion method is 50 percent higher than that obtained by adopting a normal carving method according to measurement; and the color saturation of a print in transfer printing is good, and the printing quality is high, so that the method is good in economical benefit.

Description

[0001] technical field [0002] The invention relates to the field of gravure plate making, in particular to a method for making an anti-counterfeit plate by electroplating and electroengraving. [0003] Background technique [0004] As a kind of printing process, gravure printing has the advantages of thick ink layer, bright color, high saturation, high printing plate durability, stable quality of printed products, fast printing speed and other advantages in the field of printing, packaging and graphic publishing. occupies an important position. From the perspective of application, gravure printing is mainly used for fine publications such as magazines and product catalogs, and flexible packaging printing. With the development of gravure printing technology, it has been widely used in paper packaging, wood grain decoration, leather materials and pharmaceutical packaging. . [0005] The production process of the gravure plate roller has a variety of process options from th...

AI Technical Summary

Problems solved by technology

Among them, when electronic engraving images are produced, the diamond engraving needle is driven by digital signals to vibrate on the surface of the copper cylinder of the printing plate, and the holes are carved out. The holes made by the electric carving head are V-shaped. The amount of ink is small, and the color saturation of the printed matter is poor when transferring, resulting in poor printing quality, which needs to be improved