What requirements should the circuit board ink meet?

In the production of circuit boards, the choice of ink is very important. High-quality inks can ensure the quality of the circuit boards produced. So what requirements do the inks of circuit boards generally meet? Next, we will discuss with the circuit board factory Get up and understand.

1. Viscoelasticity: It refers to the ability of the ink to rebound quickly after it is cut after it is printed by a squeegee. The better the resilience of the ink is to facilitate printing.

2. Plasticity: refers to the ability of the ink to maintain its previous shape after being subjected to external forces. Plasticity can improve the printing accuracy of the ink.

3. Hiding power: For PCB board inks, high hiding power is required according to special applications and requirements.

4. Thixotropic: When the ink does not receive external force, it appears gelatinous, and then becomes another shape after being stressed.

5. Dryness: The slower the ink is, the better, but the faster the ink is transferred to the substrate, the better.

6. Russiness: When the ink is shoveled with an ink shovel, the filaments will not break and become stringy. The longer the string is, the more filaments will appear on the PCB.

7. Fluidity: The fluidity is that the ink flows to the surroundings under the condition of external force, especially gravity. It is the reciprocal of the viscosity. The greater the plasticity and thixotropy, the greater the fluidity.

Therefore, the ink of the circuit board should meet these requirements, so as to ensure its role in actual production and ensure its good performance.