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Cause analysis of paper jam in printing plant

2022-09-13 15:579440

The paper jam phenomenon in printing production will reduce the production efficiency. Because the paper feeding is not smooth and requires manual assistance, the efficiency of automatic operation will decrease, which will lead to the reduction of printing efficiency. The surface reason for the paper jam is that the paper width is larger than the width of the paper inlet, but it is actually closely related to the air humidity.



The paper jam phenomenon in spring and summer is affected by moisture. The paper is a plant fiber with large pores, which is easy to absorb water and will become larger. Therefore, printing production in spring and summer needs to be moisture-proof. But now it is autumn, and the paper jam is obviously not caused by moisture, but by dry air. There are two reasons.



One is that the paper will not only absorb moisture, but also release moisture. When the air humidity is lower than the water content of the paper, the moisture of the paper will be taken away by the dry air, so the physical properties of the paper will also change, becoming easy to dry and crack, and even deform. The originally cut paper will become irregular, and then paper jamming will occur.



The second reason is that the air is dry, and there is a lot of friction in the printing process, so there will be a lot of static electricity in the printing production environment, and the paper will also carry static electricity. Static electricity will lead to mutual attraction or respiratory repulsion of the paper, and then paper jam will occur. And static electricity will also lead to overprinting inaccuracy, resulting in ghosting, text and text blooming and other phenomena. In addition, the paper with static electricity adsorbs a lot of impurities and dust, making the printing ink unclear.



Therefore, printing factories need to do a good job in preventing and eliminating static electricity in autumn and winter. Improving air humidity is a better method, with good effect and economic benefits. Therefore, zs-f5400z humidification and electrostatic removal device is needed. It uses ultrasonic oscillation atomization technology to atomize water into 1-10 micron fine particles. The rapid vaporization of the mist can improve the air humidity, and then sufficient water molecules will neutralize the electrostatic charge, so as to eliminate static electricity and ensure that there will be no paper jam in printing production.


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