Why does the printing industry need humidification?

　　In the printing process, sometimes there will be paper or printing products adsorbed together, as if the paper surface has a strong vacuum suction, difficult to separate, this phenomenon is printing static electricity. In dry winter, printing paper with static electricity is particularly prominent, which causes obstacles to paper feeding, paper receiving and paper drawing, and can not automatically feed paper or frequent double sheet, empty sheet, paper receiving disorder, increased loss and other adverse consequences, which not only reduces production efficiency but also affects product quality.

　　Paper is prone to static electricity:

　　First, the paper making process is not comfortable. That is, in the process of paper making, due to the electrolyte (alum, sodium chloride, etc.) content is less, sizing material (high territory, etc.) content is too much, paper in the process of drying, pressure, under the influence of high temperature, so that the paper with high voltage static electricity.

　　Second, improper storage of paper. If there is a great difference between the temperature of the paper cart and the temperature of the printing workshop, the variation of the paper moisture content will not affect the standard, and it is easy to cause static electricity, which brings inconvenience to printing. In addition, the paper before printing time is too short, or stacked too high, so that the paper and printing environment temperature lack of effective balance time, causing paper with static electricity.

　　Three is the printing friction caused by static electricity. When the water content of the paper is significantly less, the paper will be excessively dry. In the process of printing, due to friction and pressure such as paper feeding and embossing, electrons outside the nucleus of the paper will be gained or lost, making the paper with static electricity.

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