Packaging box printing process capable of preventing printing ink excessive emulsification and residues

Abstract

The invention discloses a packaging box printing process capable of preventing printing ink excessive emulsification and residues. The packaging box printing process comprises the first step of workshop temperature and humidity control, the second step of paper pretreatment, the third step of preparation before printing, the fourth step of printing, the fifth step of shape fixing and the sixth step of hot pressing film covering. According to the packaging box printing process capable of preventing printing ink excessive emulsification and the residues, through the first step of workshop temperature and humidity control, the workshop temperature and humidity can be kept stable, and excessive emulsification of printing ink is avoided; through the second step of paper pretreatment, paper before printing is conveyed to a rotating rubber roller through a conveying belt, movement of the paper and a printing plate during printing is simulated, and paper hairs, paper powder and dirt which are likely to fall off from the paper can adhere to the rubber roller; and meanwhile, the rubber roller is cleaned through a dust collector located on the rear side of the rubber roller, and therefore clean printing paper is obtained, and the problems that in the printing process, due to printing ink excessive emulsification and the residues, the image-text hue on the surface of a printed product is slightly light, the color is not bright, screen dots are blurred and deformed seriously, and the printing plate cannot be inked are solved.

Description

technical field [0001] The invention relates to the technical field of packaging box printing technology, in particular to a packaging box printing technology for preventing excessive emulsification and residue of ink. Background technique [0002] As the name suggests, packaging boxes are boxes used to package products, which can be classified according to materials such as: paper boxes, iron boxes, wooden boxes, cloth boxes, leather boxes, acrylic boxes, corrugated boxes, PVC boxes, etc. [0003] In the printing industry, slight emulsification is inevitable and necessary for the smooth operation of offset printing, but excessive emulsification has a great impact on printing quality. On the premise that the surface of the printing plate is not dirty, the degree of emulsification of the ink must be reduced as much as possible , Excessive emulsification will reduce the quality of color reproduction and the transparency of the ink. For color printing, it will affect the subtra...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides a printing process for packaging boxes that prevents excessive emulsification and residue of ink, which has the advantages of preventing excessive emulsification and residue of ink, and solves the problem of excessive emulsification and residue of ink during printing, which may cause printed surface images The color of the text is light, the color is not bright, the printed matter is dull, the dots are blurred and deformed seriously, and the printing plate does not ink.