Methods for Controlling Static Electricity in the Screen Printing Industry
1. The workpiece itself is already charged. In this case, an antistatic device can be used to treat the surface before screen printing. The method is simple: eliminate the static electricity on the workpiece surface with the antistatic device, and printing can proceed after treatment.
2. Screen-printed plastic workpieces are statically charged. An antistatic agent can be added to the plastic formula beforehand, which requires the plastic raw material supplier to complete this step.
3. An antistatic coating can also be applied to the surface of the statically charged workpiece to eliminate static electricity.
4. Use ink solvents appropriately. Even if the ink solvent has good mixing properties, solvents with good conductivity should be used to adjust the ink viscosity.
5. Ground the workpiece from the screen printing equipment to release its charge and eliminate static electricity.
6. In screen printing workshops without humidity control measures, splash water on the ground during low humidity seasons. As the ground moisture evaporates, the humidity of the screen printing environment is regulated. This method is often used in rudimentary production units without humidity control equipment. In addition to humidity control, it also helps prevent dust accumulation. In summary, the generation and elimination of static electricity should be analyzed based on specific circumstances and conditions, and corresponding measures should be taken to ensure that printing work can continue conveniently and smoothly while guaranteeing product quality.