The Role of Plate Roller in Gravure Printing Machine
2023-02-21
Gravure printing method is generally used for high-speed printing of high-quality multi-color long live pieces. It uses the plate roller called intaglio, these plate roller is generally iron, copper plating and a layer of photosensitive layer. After the small grooves representing the image area on the plate are made, chrome plating is also required.
The plate roller of gravure printing machine is usually in direct contact with the image printing material, so before the plate roller comes out of the ink tank and comes into contact with the printing material, a scraper must scrape off the ink on the surface of the roller, and then transfer the ink in the concave hole to the substrate through the pressure of the embossing roller and the capillary action of the printing material.
There are several ways to solve the problem of pollution caused by gravure printing. Each method should be considered in terms of cost and resource consumption. Printers should establish a cooperative relationship with their main source material suppliers so that the suppliers can provide the required technical support in time to ensure the quality of high-quality products while minimizing pollution and waste. Shallower ink tanks are used, and improved doctor blade technology is used to reduce the amount of ink. Vapor recovery systems are a way to reduce solvent-based contamination.
Improved methods in many devices can reduce contamination. Gravure press manufacturers use new technology for their machines and install several process improvement control accessories on their equipment. The use of vegetable oil instead of gasoline as a solvent, as well as the use of water-based ink process will reduce environmental pollution, and the use of less polluting solvent materials to replace the current solvent is also a good way.
The methods described above do not affect the efficiency of the printing press, but also save costs and reduce pollution. It is bound to be the general trend in the printing industry that focuses on green and environmental protection.
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