An effective solution to excessive emulsification of ink in offset printing
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In the production of offset printing, we often encounter the phenomenon of excessive emulsification of ink, which not only seriously affects the production speed and product quality, but also causes certain economic losses. Excessive emulsification of ink is usually caused by excessive water supply. Therefore, the operator usually solves the problem of reducing the amount of water supply and increasing the amount of ink supply. However, the adjustment effect can only be verified by printing, which is undoubtedly wasted. Certain time and materials.
To this end, we have studied the excessive emulsification of ink as a subject. By looking up the data of printing presses at home and abroad, we found that we can learn from the method used by the Heidelberg CP2000 offset press when dealing with such problems. An axial fan is installed in the dampening system relative to each ink zone to allow excess moisture in the area to evaporate quickly. Inspired by this approach, we designed an adjustable drying system to be installed on the offset press to allow excess moisture to evaporate quickly and reduce the chance of excessive emulsification of the ink.
According to the amount of water in the ink zone, the distance between the axial fan and the plate cylinder can be adjusted by the DC low speed motor, so that excess water is quickly volatilized, and the problem of excessive emulsification of the ink due to excessive moisture is effectively solved. The machine has low construction cost, simple structure and convenient use, and can be detached from the offset printing machine at any time, without affecting the normal operation of the offset printing machine, and will not damage the original mechanism of the offset printing machine.
At the same time, in the test, we also found that due to the effectiveness of the blowing, the mechanism can also remove the paper hair caused by the poor quality of the paper, thereby further improving the quality of the printed product.