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How to Improve the Printing Effect in Color Printing Plant

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How to Improve the Printing Effect in Color Printing Plant

Release date:2019-01-29 Author: Click:

The quality inspection of Dalian Color Printing Plant is mainly responsible for the inspection of printing products, and for the quality inspection and control. Full inspection, spot inspection, patrol inspection, etc. Full inspection is a complete inspection of a batch of products, including points, color difference, ink dots, typesetting errors, etc. Generally, semi-finished products printed in the printing room need full inspection. Sampling inspection is a kind of sampling inspection for every process after printing, such as film coating, oil passing and die-cutting products from time to time.


In order to find problems at any time, and put forward rectification suggestions at any time. Patrol inspections are usually carried out in the workshop. Sample inspections and repeated inspections are carried out in processes that are deemed necessary or difficult to control in order to eliminate the occurrence of quality problems. The wetting solution is a necessary condition to ensure the formation of hydrophilic salt layer in the blank part of the plate.


Alcohol embossing system is widely used in offset press at present. Isopropanol is one of the additives of embossing solution. Compared with the traditional waterproof plate system, this method can greatly reduce the amount of water, and avoid the paper distortion caused by excessive water and the excessive emulsification of ink, thus greatly improving the printing effect.


However, because the alcohol vapor produced by the volatilization of isopropanol is toxic, has a bad odor, and can cause harmful effects on human health, many developed countries stipulate that the threshold value of isopropanol in the workplace is only 200-400 ml per cubic meter; moreover, the emission of isopropanol will pollute the environment, isopropanol is a photochemical oxidant, with other trace amounts existing near the ground. The gas is the same.


Exposure to sunlight can form ozone, leading to the so-called "summer smog" phenomenon. Photochemical smog can stimulate people's eyes and respiratory system, endanger people's health and plant growth. Therefore, isopropanol is a harmful chemical to the environment and human body. It is an inevitable trend to reduce its consumption in printing.

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