Plate wiping solution for engraving intaglio printing press

Abstract

The invention relates to a plate brushing liquid for a printer, in particular to a plate brushing liquid for a carving copper plate press. The plate brushing liquid comprises the following components by weight portion: 10 to 20 portions of diethylene glycol ether, 88 to 90 portions of aviation kerosene with a boiling point of 250 to 290 DEG C, 1 to 3 portions of deodorant, and 2 portions of high molecular copolymer which is prepared from acrylic acid, styrene and maleic anhydride. As the plate brushing liquid with a novel formulation mainly has physical dissolution action without heating in the process, the post-treatment of plate brushing liquid waste can be greatly simplified. The water brushing intaglio plate brushing liquid waste is only needed to be taken out from the copper plate press and be filtered by a microporous film pressure filter; the obtained micro-filtration clear liquid can be directly reclaimed; and the obtained pressure filtration filter cake can be used as boiler fuel after natural drying.

Description

Technical field [0001] The invention relates to a plate-wiping liquid for a printing machine, in particular to a plate-wiping liquid for an engraving gravure printing machine. Background technique [0002] The printing plate of the engraving gravure printing machine needs to be cleaned with a wiping liquid in time after use to ensure the quality of subsequent printing. After the wiping liquid is cleaned, it becomes a wiping waste liquid, which involves the subsequent treatment of the wiping waste liquid. [0003] The wiping liquid of the existing engraving gravure printing machine contains surfactants represented by alkali and Taigu oil. During the wiping process, the alkaline wiping liquid and the acidic ink undergo a complex chemical reaction to dissolve it. The post-treatment is difficult and causes pollution to the environment. Take out the water-wiping gravure wiping waste liquid from the gravure printing machine and pass it through the hollow fiber ultrafiltration membrane u...

AI Technical Summary

Problems solved by technology

[0004] It can be seen that the follow-up treatment of the wiping solution of the existing engraving gravure printing machine is complicated, and there are other defects: alkali, surfactant and a large amount of water will be consumed in the production process, and the hollow fiber membrane is required to be ultra-filtered in the recycling process, which is also difficult. Only about 60% of the ultra-filtered liquid can be reused, and other concentrated liquids need to be chemically treated to meet environmental protection standards before they can be discharged. A large amount of waste ink residue and waste water are produced in the whole process