How is the matte effect of screen printing silicone achieved?

How is the matte effect of screen printing silicone achieved?
1. Adding matte powder: Adding matte powder (such as matting agents such as silica) to screen printing silicone is one of the common methods. These matte powder particles are evenly dispersed in the silicone system. After curing into a film, its surface is microscopically uneven. When light shines on the surface of the film, it will be diffusely reflected on these uneven surfaces, thereby reducing the gloss of the surface and achieving a matte effect. Adding matte powder of different types and particle sizes, and controlling the amount of matte powder added, can adjust the degree of matte. ,
2. Adjusting the formula and ingredients: Matte effects can also be achieved by changing the basic formula and ingredient ratio of silicone. For example, changing the type and amount of cross-linking agent, adjusting the molecular weight and structure of the polymer, etc., affects the microstructure of silicone after curing, so that its surface presents a matte state. The use of some special silicone resins or additives can also make silicone obtain a matte appearance after curing.
3. Special process treatment: The use of some special processing techniques can also make screen printing silicone have a matte effect. For example, after silicone printing, specific post-processing processes such as chemical etching and physical polishing are carried out to treat the surface of the silicone, destroy its smooth surface, and give it a matte texture.