Production device and production method for coated duplex board with grey back

Abstract

The invention relates to a production device and production method for a coated duplex board with a grey back. The production device comprises first coating equipment, second coating equipment and atomizing spray equipment 8, which are sequentially arranged along the paper walking direction, wherein the first coating equipment and the second coating equipment are used for first coating and second coating on the surface layer of the paper respectively; and the atomizing spray equipment 8 is used for atomizing spray on the back surface of the paper. The production device for the coated duplex board with the grey back only needs two coating procedures; the atomizing spray equipment is additionally arranged to the back surface to adjust paper warpage; the atomizing spray water quantity can be adjusted; the paper coating quantity is greatly reduced; and the chemical consumption is reduced. The coating procedures are added to the surface layer and the back surface of the paper respectively, so that paper machine equipment is greatly reduced; and factory occupation and fixed equipment investment are greatly reduced.

Description

technical field [0001] The application relates to a production device and production method of coated gray-bottomed white board paper. Background technique [0002] At present, the production of gray-bottomed whiteboard paper machine is 3 layers of coating on the surface layer and 1 layer of coating on the back to ensure the printing performance of the paper surface and the smoothness of the paper. This configuration requires high energy consumption and investment in fixed equipment, because each additional layer Coating needs to be equipped with a coating feeding system and a coating preparation system. At the same time, infrared and hot air are required for drying, which consumes a lot of energy, increases chemical consumption, and increases environmental pressure. Contents of the invention [0003] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a production device and production method for coated ...

AI Technical Summary

Problems solved by technology

[0002]Currently, gray-bottomed whiteboard machines are produced with 3 coatings on the surface and 1 coating on the back to ensure the printing performance of the paper surface and the smoothness of the paper. The configuration requires high energy consumption and investment in fixed equipment, because every additional layer of coating needs to be equipped with a coating feeding system and a coating preparation system. At the same time, infrared and hot air are required for drying, which consumes a lot of energy and increases chemical consumption. Environmental pressure

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