What are the methods for eliminating static electricity of transparent thermal label paper?

The static elimination methods of transparent thermal label paper mainly include the following:

First, grounding elimination method

Principle: Using the physical characteristics of electrostatic charge, contact the printing material (or label paper) through the metal conductor material, and connect the other end of the device that has been grounded, and guide the electrostatic charge to the earth, thus eliminating the static charge in the device.

Implementation mode:

Electrostatic rope and electrostatic copper wire: The common grounding method of the printing factory is to add electrostatic rope and electrostatic copper wire. Because the electrostatic copper wire exposed in the air is easy to cause oxidation to weaken the conductive ability, and the strong conductive copper wire of the electrostatic rope is wrapped in nylon, the effect is better.

Other grounding devices: For example, connect one end of a copper wire to the device and the other end to a water pipe or ground pile to ensure effective grounding.

Second, humidification elimination method

Principle: By increasing the ambient humidity, reduce the surface resistance of the substrate material (or label paper), and improve the electrical conductivity of the material surface, thereby reducing the static electricity problem.

Implementation mode:

Simple humidification: such as frequent water mop.

Use a humidifier: It is recommended to use a spray humidifier to control the humidity within a reasonable range (50% to 65% is generally recommended) in the overall humidifying workshop environment.

Third, external static elimination device

Ion neutralization method: The use of inductive electrostatic elimination rod and other equipment, by eliminating the brush tip near the charged body induction polarity, generate opposite charges, to achieve electrostatic neutralization.

Electrostatic eliminator: including copper wire method, electrostatic brush, electrostatic eliminator rod and ionic air electrostatic eliminator and other types. These devices produce ions that combine with the charge on the surface of the material to eliminate static electricity.

Fourth, chemical elimination method

Principle: By coating a layer of antistatic agent on the substrate (or label paper), the substrate material conducts electricity, thereby effectively reducing the generation of static electricity.

Implementation mode:

Use before printing: Add an appropriate amount of antistatic agent to the varnish.

Use after printing: Apply antistatic agent coating directly to the surface of the label paper.

Fifth, other auxiliary measures

Control temperature and humidity: Ensure that the temperature and humidity of the label material storage and printing workshop are controlled in a relatively close range. The recommended temperature is 18 ° C 25 ° C, and the humidity is 50%65%.

Wear ESD clothes: The operator at the printing station should wear ESD clothes and ESD caps to reduce the impact of static electricity on labels.

In summary, there are a variety of electrostatic elimination methods for transparent thermal label paper, and you can choose the appropriate method or combine a variety of methods according to the actual situation to achieve the best electrostatic elimination effect.