We all know that 3D printed products are mostly solid color models. If you want to color your own prints and print a specific pattern, many friends will first think of spray paint. Very good, spray painting is indeed an excellent solution for coloring the prints, but spray painting is mainly suitable for large areas of simple color blocks, and needs to have obvious color separation lines, if it is a specific text, trademark and other complex patterns, spray painting Maybe not very good at it. So, what should we do in response to such patterns?

01. Process principle Screen printing is the abbreviation of screen printing, which refers to the use of screen as the plate base, and the method of photosensitive plate making to make a screen printing plate with graphics and text. Printing is carried out by using the basic principle that the mesh of the screen printing plate can pass through the ink, and the mesh of the non-graphic part cannot pass through the ink. When printing, pour ink at one end of the screen printing plate, apply a certain pressure to the ink part on the screen printing plate with a scraper, and at the same time move towards the other end of the screen printing plate at a constant speed, the ink is removed from the graphics and text by the scraper during the movement. Part of the mesh is extruded onto the substrate. Process characteristics The characteristics of screen printing can be summarized in the following aspects:

1. Screen printing can use various types of inks, namely: oily, water-based, synthetic resin emulsion, powder and other types of inks.

2. Layout is soft The screen printing layout is soft and has a certain elasticity, not only suitable for printing on soft items such as paper and cloth, but also suitable for printing on hard items, such as glass, ceramics, etc.

 3. Small screen printing force is also suitable for printing on fragile objects due to the small pressure used in printing.

 4. Thick ink layer and strong covering power Printing on small objects, but also suitable for printing on larger objects.