Printing method and printing device

Abstract

The invention discloses a printing method for achieving variable printing on the basis of traditional offset printing. The printing method includes the following steps that 1, a mesh offset plate is provided, wherein the mesh offset plate comprises a plurality of mesh point structures; 2, a feature image is printed on the mesh offset plate, wherein the feature image is formed by a part of or all the mesh point structures; 3, the feature image is transferred onto a printing stock through the mesh offset plate; the step 1, the step 2 and the step 3 are repeated so as to achieve variable printing of the printing stock. According to the printing method, variable printing of the feature image can be achieved, the anti-fake effect on the printing stock is achieved very easily, and the printing cost is lowered.

Description

[0001] This application claims the national priority of the Chinese patent application with application number (CN201410048272.9). The entire content of the Chinese patent application CN201410048272.9 is incorporated herein by reference. technical field [0002] The invention relates to the field of printing technology, in particular to a printing method and a printing device capable of realizing variable characteristic images based on traditional offset printing. Background technique [0003] Traditional offset printing is currently the most economical batch printing method. Since this printing requires plate making, one plate corresponds to one graphic, it can only realize batch printing of fixed graphics. To achieve variable printing, such as variable text, graphics, etc., is currently achieved through digital printing or inkjet printing. [0004] Generally speaking, for a printing of a certain format, the cost of traditional offset printing is basically the same as that...

AI Technical Summary

Problems solved by technology

[0005] Now there are many good anti-counterfeiting technologies, all of which involve variable printing, and the packaging of public goods such as tobacco and wine can only be printed by offset printing machines such as Heidelberg due to the huge printing volume.

Moreover, when a new printing task needs to be completed, such traditional offset printing machines often need to make a new offset plate and use it to replace the offset plate in use to perform the printing task; obviously, this will affect the printing work efficiency and prolong the idle time of the printing unit

This limits the application of some anti-counterfeiting technologies combined with variable printing in this field

Images