Multicolour photogravure method

Abstract

The invention discloses a multicolour photogravure method which uses spray Al paper as printing paper and waterborne ink as printing ink. During the printing process, firstly a layer of polyacrylate emulsion coating is printed on the spray Al paper, and after the polyacrylate emulsion coating is dried and cured, the waterborne ink is used for printing. By adopting the scheme for printing, the polyacrylate emulsion coating has good adhesive force with the metal layer such as the surface of the spray Al paper and the waterborne ink also has high coating ability with the polyacrylate emulsion coating so that the ink and papers can be well combined by using the polyacrylate emulsion coating, thus achieving the aim of increasing the adhesive force of ink. The method of the invention realizes that the waterborne ink can be printed on the spray Al paper by adopting the photogravure method, and ensures that the spray Al paper and the waterborne ink which are two kinds of environmental protection type printing materials can be widely applied in the photogravure method field and the photogravure tends to develop in the green and environmental protection direction.

Description

technical field [0001] The invention relates to a printing method, in particular to a method for performing multi-color gravure printing with water-based ink on aluminum-sprayed paper. Background technique [0002] At present, the printing of cigarette packs is mostly carried out on a multi-color online gravure printing machine. When using a multi-color online gravure printing machine for printing, the liquid ink is printed on the surface of the paper through the printing plate cylinder. When the paper is printed from one printing color group to another printing color During the process of the printing group, the built-in drying device of the unit blows hot air to the paper, so that the ink just printed on the paper surface dries and solidifies on the paper surface before reaching the next printing color group. [0003] With the increase of people's awareness of environmental protection, people have higher requirements for the raw materials of printed matter, and the traditi...

AI Technical Summary

Problems solved by technology

In such a state of adhesion fastness, there will be quality defects such as ink layer cracking after the printed matter is packaged, which will seriously affect the appearance of the product

Therefore, it is almost impossible to use the traditional multi-color on-line gravure printing method to print water-based ink on aluminum-sprayed paper. It is a pity that the two environmentally friendly materials, aluminum-sprayed paper and water-based ink, cannot be used at the same time.

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