Corrosion treatment process for improving embossing effect of secondary corrosion embossing plate

Abstract

The invention discloses a corrosion treatment process for improving the embossing effect of a secondary corrosion embossing plate, and relates to the technical field of printing processes. The corrosion treatment process comprises corrosion treatment and post processing treatment on a metal material plate, and the corrosion treatment of the metal material plate comprises the following steps: a) carrying out shallow corrosion treatment on the metal material plate; b) coating anti-corrosion glue; c) performing deep corrosion treatment; the post processing treatment comprises the following steps: d) preparing a treating fluid and brushing the treating fluid on the surface of a semi-finished embossing plate; e) modifying nano aluminum oxide by adopting KH550; and f) preparing a resin mixture and brushing the resin mixture on the surface of the pretreated embossing plate. According to the corrosion treatment process provided by the invention, a composite film layer and a resin layer are formed on the surface of the embossing plate, the corner smoothness of the embossing plate is improved and the damage to a paper structure is reduced by utilizing the compact and uniform structure of the composite film layer, and the resin layer can play a role in protecting the composite film layer due to the excellent impact resistance of the resin layer, and the embossing plate can meet the long-term normal use effect.

Description

technical field [0001] The invention belongs to the technical field of printing technology, and in particular relates to an corrosion treatment process for improving the embossing effect of a secondary corrosion embossed plate. Background technique [0002] Embossing is a common process for surface finishing of packaging and decoration printed matter. Embossing can not only improve the quality of product packaging, but also improve the artistic level of printed matter and increase the added value of commodities. Generally, there are two types of embossing processing technology, one is to use the patterned roller, and use special machinery to complete the embossing process through the pressure of the pressure roller; the other is to make the patterned embossing plate, and use the embossing machine to complete the embossing process. Texture process. The former is very expensive to make pattern rollers, and the embossing quality is relatively stable, but it is only suitable fo...

AI Technical Summary

Problems solved by technology

Electric engraving is the best plate-making process at present. The program is determined by computer, and the whole process is engraved by electric engraving machine. The state of the text itself is close, especially for use on high-end packaging, but the production cost of the electro-engraved concave-convex plate is relatively high

The corroded plate is corroded by liquid medicine, and the cost is relatively low, but there are also problems such as unclear outline, poor layering, and rough plate opening. When embossing, it is easy to cause damage to the paper structure, and often Blistering occurs on the surface

For example, Chinese patent CN2015100734368 discloses a method for uniform etching of laser stencil rolls. The process method uses spray corrosion for primary corrosion and Boumelan corrosion for secondary corrosion. The impact of the corrosive liquid on the plate roller improves the phenomenon that the size of the holes on the plate roller is not easy; but in actual application, there are still a small amount of embossed products with surface blistering, and the plate roller is in the long-term embossing operation. The embossing friction between the hole and the paper will cause the edge of the cell to wear and the cell to appear rough, which will lead to a decrease in the quality of the embossed product in the later stage