Transport and storage of printing rollers

Persons engaged in the printing industry are very aware of the importance of printing rollers. Because the relationship between, and product quality are inextricably linked it directly to the printing plate occur, whether you are using offset printing, letterpress printing, gravure, flexo presses are faced with how to choose and debugging skills. If you can not follow its rational use and operation rules, not only India could not ideal and excellent product, but also damage to the roller, but also shorten the life of the printing plate. Printing rollers to adjust to optimal level and ideal point there is a certain degree of difficulty, not overnight can grasp. Because it is not a fixed formula, depends from machine long-term production practice summary, exploration, mining, innovation, finishing a set of effective printing skills. So good debugging printing rubber roller crucial. Here the choice of printing rollers, use, testing, maintenance fully discussed. Select the printing rollers: as fast Meng development of market economy, new equipment, new technology, new materials, especially new printing equipment also will produce. Replacement is also more timely, the domestic printing equipment also tends high technology, durability, advanced. From the international printing industry point of view, there are indications of some developed countries in Europe and other aspects of printing equipment is still ahead of us. Although the domestic printing industry in the 1990s the introduction of many developed countries in the printing machinery and printing equipment, but the use of printing rollers need to be replaced to a certain number of years, far less than the domestic printing rollers cot original equipment. Past printing enterprises are equipped with "rubber room", which specializes in the production printing rollers, pollution. With the development and updating of the printing industry, the equipment, the traditional old-fashioned printing rollers can not meet the need for high-speed printing presses because gradually be eliminated. The disadvantage is that can not adapt to hot and humid environment, at a high temperature to soften, harden at low temperatures, especially for printing gold, printed textured version is more suited to hinder the improvement of the printing quality. In the 1980s printing rollers have a big revolution, new rubber roller from the constraints of climatic conditions and strong resistance, corrosion resistance, but the cost is high, so that SMEs prohibitive. With the rapid economic development, it is by the majority of users praise. Printing rollers commissioning and proper use: any printer regardless of species, models in the new equipment in place, you must first install the printing rollers by the technical staff and from machine. Cots must be installed level debugging justified, it must be in close contact with the ink roller and plate, both are indispensable. Printing practitioners are aware of the height of the relief is 3.14mm, and the height is the same type, and the PS version is relatively low as 1.2mm, so the installation of plastic rolls must be aware of. If it is printed with a background of printed materials, rubber roller adjustable low point, the error is ± 0.5mm, so that the ink roller is passed to the printing rollers ink more evenly, while printing rollers reflected onto the plate have the same the effect of the printed product people pleasing, if not, there will be Mexican bars, ink channels and so on. When printing text, the height of the rubber roller is substantially the same as or slightly less text version can be, it will give the printing rollers gently rubbing the plate, so that the printed word very clear, neat, small rubber roller wear surface not easy to damage, extend the period of use of the printing plate. Adjustment should be used to transfer rollers. Before using the first plate removed so that the gel roll horizontal extends into the pull-out several times, the gel ink dot size on the roll immediately displayed, the operator can determine the extent of the level of printing rollers according to the different needs of the printing, and then The top cable prison. So that when the level of the high-speed printing rollers will not change. If we lack the patience when using the roller, debugging anxious easy way, the following occurs: (A) the surface of the rubber roller appears damaged, dregs, make the text print off the road missing document, the text mode burnt unclear, even Hu appeared blind, jump plastic phenomenon. (B) ink mixed text, even text-only printing surface impressions but no ink. (C) If the rubber roller commissioning and transfer ink rubber rollers too tight, but also the printing rollers bad economic losses caused by twisting and equipment accidents. Maintenance of printing rollers: In offset printing technology and ink key waterway balanced control, and water balance by the roller, the roller key components, its quality is good or bad can act directly on the product quality. Gravure, letterpress, flexo even more so. General printing business once weekly maintenance equipment, including maintenance of printing rollers. Maintenance methods are the following: 1. daily production after the job should be carefully cleaned cot, repeatedly washed twice; 2. Cleaning printing rollers must use the specified chemicals, such as industrial alcohol, must not use corrosive solvents; 3. To remove the holidays Cots, compressive deformation; 4. For the protection of surface printing rollers should take good news wrap, placed ventilation shadows.