The harm and elimination method of static electricity in printing industry

In the printing production process, there will be paper or printed matter attracted to each other, it is difficult to separate, this phenomenon is printing electrostatic phenomenon. In the dry winter climate, the phenomenon of electrostatic printing paper is particularly prominent, light to the normal paper feed, paper receiving and paper failure, heavy can not boot printing.

Reasons for static electricity in the printing industry:

There are many reasons for static electricity in printing, mainly the following:

1. Friction and extrusion produce static electricity;

2. Peeling generates static electricity;

3. Ink produces static electricity.

In addition, temperature and humidity also have a close impact on electrostatic generation. The paper is stored in the paper bank and the workshop, because the difference in temperature and humidity is too large, the change in the water content of the paper is also obvious. Once the relative humidity of the air drops to a certain extent (below 40%), it is easy to produce static electricity. When the ambient temperature rises, the paper is subjected to friction, and the charge movement is accelerated, making the generation and accumulation of static electricity increase.

Electrostatic hazards of printing industry:

Due to the influence of many factors such as friction in printing, the paper often has static electricity. When the paper has the same polar charge, the paper is repulsive to each other, which is easy to cause inaccurate positioning of the paper feed, affecting the accuracy of overprinting and the stacking of paper on the receiving table. When the paper has a dissimilar charge, not only do they attract each other, but they also attract each other with the printing equipment, causing difficulties in paper feeding, uneven paper receiving, and inaccurate overprinting. Specifically, the harm caused by static electricity in the printing industry is roughly divided into the following two categories:

1. Affect the printing quality of products;

2. Affect production safety.

Printing industry static elimination measures:

1. Control relative humidity;

2. Add antistatic agent;

3. Install an ESD eliminator.

Compared with the first two methods of eliminating static electricity, the use of static electricity eliminator not only has a better effect, but also is easy to control, and is an indispensable supporting equipment in the printing industry.