Five Ways to Solve Paper Static Electricity

1, storage method

After the paper enters the printing plant, the storage time should be appropriate and the storage location can be better connected with the printing plant. The best temperature is 18 to 25°C and relative humidity is 60 to 100%. The temperature and humidity of the printing plant are exactly the same as that of the paper library, which helps to change the moisture content of the paper. Changing the moisture content of paper is a process of releasing static electricity.

2, hanging paper method (wetting method)

Mainly to eliminate static electricity by adjusting the degree of main moisture. When the relative humidity in the workshop is less than 50%, the long static electricity is prone to occur during the printing or platemaking process. This increases the relative humidity of the factory and the water content of the paper, especially when the paper is dry, increasing the relative humidity of the room. Static electricity is very useful. The humidity control device can be used to increase the degree of relative humidity in the room, and when there is no humidity adjustment device, sufficient water can be sprinkled on the floor.

The humidity control equipment is mainly a humidifier, and a centrifugal semi-automatic humidifier can be installed on the Tianhua board or wall of the plant. When the degree of relative humidity in the room does not meet the requirements, the humidifier can semi-automatically spray misty water vapor to increase the degree of relative humidity in the room. After the degree of relative humidity in the room reaches the required level, the humidifier semi-automatically stops spraying.

3, static elimination method

The ions generated by the static eliminator neutralize the charge on the charged body to achieve the goal of eliminating static electricity. There are three types of static eliminators: one is an external voltage electrostatic discharger, which gives a high voltage to acicular or thin wire electrodes, generates corona discharge ions, and a common-use transistor-to-transistor static eliminator The second type is a self-discharge type static eliminator. Conductive fibers, conductive rubber or conductive metal materials are made into needle-like or fine-line electrodes and are grounded beautifully. The electric field of the charged body generates corona discharge to generate ions. And the charge on the electrified body; the third is the static elimination device for radioactive elements, which uses the ionization effect of the radioactive isotopes to generate ions and ionize the static electricity on the electrified body.

4, antistatic agent method

Antistatic agents are also known as static eliminators or eliminators. The principle is to give paper, film and other charged body surface hygroscopic ion, make it hydrophilic, draw lessons from the nutrients in the air, reduce the resistance, increase the conductivity, so that the electrostatic charge can not help but easy to deposit. Antistatic agents are mainly external active agents, with hydrophilic and hydrophobic groups, or polar groups and non-polar groups. Hydrophilic groups have strong affinity for water and other polar substances, and hydrophobic groups have strong affinity for oils and other less polar objects. Antistatic agents are widely used in printing applications, such as the use of antistatic agents to make the electrostatic roller to avoid static electricity.

5, process practice

In the printing process, moisturizing hand towels may be placed on the part of the delivery paper, and the drowning hand towel may be fixed on the pull rod so that the paper can eliminate the static electricity by contacting with the moist hand towel. This is a temporary but effective method of eliminating static electricity. Wet wet towels.

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