For UV flatbed printer, the main function of coating is that absorbs ink

to form image and increase the adhesion of image. In short, if you want to printing full color on ABS plastic material. Due to ABS is large densities material, it is very difficult to adsorb the ink, even if use UV ink. So, firstly user need to make a layer of ABS coating on ABS plastic material, then printing on it. You will get a clear printing result, it will never rub off.

Then, whether UV flatbed use same way to print all kinds of materials? The answer is no. However, if ignore adhesive force, UV printer can be used to all type of material. For UV printer, different material needs different coating. Such as, ABS material will need to make special ABS coating treatment. Metal media needs it’s own coating treatment also. So, the technology of coating treatment is complicated. This reflects a company's technical strength. For a company, it is difficult to have all type of coating.

Some tips for coating treatment:

Before printing, need to clean media’s surface and make sure it’s clean on surface. It is hard to have a dust-free working environment. So, before printing, we can sprinkle some water to reduce the dust in the air. Secondly, user should use dust cloth to wipe printing media. Professional dust cloth is soft and has stronger adsorbability and cleaning ability. After finish those process, the surface of media will be very cleanly.