Two experiences of the hottest offset printing pro

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Offset printing process experience two

experience is the private high-tech enterprise with the largest scope and the highest market share in Jinan experimental machine production base in China. One: skillfully use rubber blanket

in production, we often encounter the blistering, dent, hardening and other phenomena of air cushion rubber cloth of split four-color machine due to long service time. In order to ensure the printing quality, we need to replace these old rubber blanket, but it is a pity to lose it. The author's experience is that it also needs innovative gasoline to clean these old rubber blanket with plastic recycling channels, and then use rubber blanket reduction cleaning agent for treatment. For places with obvious dents and hardening, the treatment time is longer, and then put the whole rubber cloth flat on the workbench, wait for about a week, and then use rubber blanket reduction cleaning agent for treatment. In some areas, there has been a trend to replace wood and metal materials, The rubber blanket treated in this way can be used on the machine again. For the rubber blanket that still has dents, it can be installed on the ypsiai book printing machine. The operation and application of the spring tension and compression testing machine, especially when unloading, do not let go suddenly. The effect is better and more durable. If there are sand holes or cracks in the rubber layout part, it can also be cut into four pieces. The rubber blanket can be used on the four boot

experience 2: skillfully supplement PS version

when drying text version, it is easy to produce word dropping phenomenon due to film itself or improper operation. In this case, if re printing is more wasteful, and general repair, the printing plate is not strong enough. The author's experience is that use a small brush dipped in the photosensitive solution of the PS version to fill carefully. The version that has been put into the machine should be removed, cleaned, dried and then filled. Then hang the printing plate in the air, and dry the filling place with an electric hair dryer for about 15 minutes. After such treatment, the printing plate generally has a printing resistance of about 30000 prints. If the plate is baked again, the printing resistance can reach about 150000 prints. Of course, if the number of prints is small, you can directly fill it with a ballpoint pen. This method is convenient, cost-effective and good. You may as well try it

source: Printing Technology

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