Screen printing silicone characteristic
1. Environmental protection, raw materials used by ROHS certification.
2. It can print and register without delamination.
3. Can print a variety of effects, such as bright, matte, right angle, fillet, etc.
2. Precautions
1.Screen mesh to choose the appropriate, because the particles of silica gel relative ink to a lot of large, so generally choose the mesh in 80-120. If the selection is too high, silica gel can not be attached to the substrate through the screen. If it is too large, it will flow into the substrate automatically.
2. When scraping the screen, the photosensitive glue needs to be thicker than the ordinary screen ink, because the general silicone printing pays more attention to the three-dimensional effect than the ink printing, and highlighting its three-dimensional sense is also an important reason for using the screen printing silicone printing. Generally in the thickness of 0.1-0.5, according to the actual thickness of the sample to qualitative.
3. There are two kinds of screen printing silica gel, one is ordinary screen printing silica gel, which needs to be mixed with ab silica gel before it can be used, and it needs to be heated and solidified, and the general temperature is about 120-160 ℃. The other is screen printing without baking single component silica gel. The former can be used for a long time without mesh plugging, but it has poor adhesion to some fabrics. If the material can not be heated at high temperature, this kind of silica gel can not be selected as the screen printing material. The latter does not need to be baked after printing, and is naturally dried at room temperature for 6-10 minutes, but it is easy to plug the screen. Therefore, when printing, it is necessary to constantly replace the silica gel, which is a lot of waste. It is generally suitable for printing materials or fabrics that ab silica gel is not suitable for printing. When adding color paste or gold and silver powder, AB glue only needs to be adjusted at room temperature. For single component silica gel, a sealed mixing container is generally required. After mixing it evenly, each point is used for quantitative extrusion to avoid waste and save cost.
Can be customized according to customer needs, please contact.
