Regulations that need to be followed when using PCB ink
2022-01-07

Regulations that need to be followed when using PCB ink


According to the actual experience of most manufacturers using ink, the use of ink must refer to the following regulations:

1. In any case, the temperature of the ink must be kept below 20-25°C, and the temperature cannot change too much, otherwise it will affect the viscosity of the ink, the quality and effect of screen printing.

Especially when the ink is stored outdoors or at different temperatures, it must be placed at ambient temperature for several days before it can be used again, otherwise the ink tank can reach the proper working temperature. This is because the use of cold ink will cause screen printing to fail and cause unnecessary trouble. Therefore, in order to maintain the quality of the ink, it is best to store it under normal temperature process conditions.

2. Before use, the ink must be fully and carefully mixed manually or mechanically. If air enters the ink, let it sit for a while. If dilution is required, first mix thoroughly and then test its viscosity. The ink tank must be sealed immediately after use. At the same time, never put the ink on the screen back into the ink tank and mix it with unused ink.

3. It is best to use mutually suitable cleaning agents for cleaning, and the cleaning agents should be very thorough and clean. When cleaning again, it is best to use a cleaning solvent.

4. After the ink is dried, it must be carried out in an equipment with a good exhaust system.

5.In order to maintain working conditions, screen printing is carried out on the job site that meets the technological requirements of the process.

The ink protects the copper foil during the production process, so that the copper skin is not exposed and affects the subsequent processes. There are photosensitive inks, carbon oil and silver oil. Both carbon oil and silver oil are conductive. Commonly used ink colors are white oil, black oil, green oil, red oil, blue oil and butter.

The above is an introduction to the matters and functions that should be paid attention to when choosing PCB ink. I hope to provide you with some reference!