In life, the products made by screen printing are very extensive. For example, the patterns on the water cup, the warning signs, the patterns on the clothes, etc. are all made by screen printing.
The application field of luminous powder is very wide. In the field of printing, it can be said that it is the most common. The luminous powder is mixed with transparent ink to produce luminous ink. The patterns made with luminous ink are the same as ordinary patterns during the day, but they will glow in dark environments.
When screen printing, the choice of luminous powder is very important. The particle size of the luminous powder depends on the size of the grid, and the particle size of the luminous powder must be smaller than the size of the grid. If the luminous powder is too large, the grid will be blocked and cannot be printed normally, affecting the printing effect.
Here is an example, the size of the grid is 200 mesh, then 30-40μm luminous powder (400 mesh and 15μm luminous powder is also acceptable), because the size of the luminous powder is an average, 200 mesh luminous In powder, the average particle size is between 50-60μm, but the maximum particle size may exceed 60μm. During screen printing, the particles with the largest particle size in the 200 mesh luminous powder will block the grid.
When the particle size of the luminous powder is selected, mix the luminous powder with the ink. The ratio of luminous powder is 40% (minimum), and the proportion of luminous powder can also be 50% or 60%. Adding luminous powder to the ink will not cause sedimentation. Because the viscosity of the ink is high, the density is higher than the Glow in the dark powder.