Flexible plate processing technology for gradient printing in flexo printing

Abstract

The invention discloses a flexible plate treatment process for flexographic gradient printing, which relates to the field of printing plates. The base layer of the flexible plate is placed under a long-wave ultraviolet lamp in a printing machine for irradiation; according to the shape of a pattern to be printed, the The relief layer of the flexible plate is placed in the engraving machine for engraving, and the black film is removed to obtain the pattern to be printed; the relief layer of the flexible plate is irradiated under the short-wave ultraviolet lamp of the printing machine to partially harden the pattern to be printed; The plate machine cleans the embossed layer of the flexible plate, the flexible plate is close to the plate washing roller, and the plate washing roll and the non-woven fabric roll rotate relatively. During the cleaning process, the black film on the embossed layer is melted at high temperature and then turned For gas discharge, the residual resin is wiped with non-woven cloth; the cleaned flexible board is fixed, the relief layer of the flexible board is irradiated by long-wave ultraviolet lamps, and the base layer is irradiated by short-wave ultraviolet lamps, so that the processed flexible board It is finer, has higher hardness resistance, and the pattern is fine and smooth.

Description

technical field [0001] The invention relates to the field of printing plates, in particular to a flexible plate treatment process for flexo gradient printing. Background technique [0002] Printed matter is more common in our lives, such as merchants' Alipay QR codes, stickers on shampoo, and stickers on shower gel. The variety and use of printed matter are relatively extensive, and the formation of printed matter is inseparable from the printing process. The development of printing process has not remained unchanged so far. On the contrary, the improvement of its printing quality is always accompanied by changes. Changes are often in two forms. One is a partial change; the other is a complete change. The printing process, whether it is a partial change or a complete change, will cause the printing effect to change more or less. The most important link in the printing process is the production of the printing plate template. The quality of the printing plate template direc...

AI Technical Summary

Problems solved by technology

[0004] Based on the above-mentioned existing printing plate templates, that is, the dot spacing of the flexible board is blurred and the support strength is small, etc. Problem, the present invention provides a flexible plate treatment process for flexographic gradient printing, so that the following technical solutions are proposed for the above-mentioned existing printing plate templates, that is, the problems such as blurred dot spacing and low support strength of the flexible plate:

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