Why do UV flatbed printers need to be coated?

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In theory, UV flatbed printers can print any flat data, but due to the differences in the characteristics, density, adhesion, flexibility, and other functions of different materials, some special industrial materials will have inks when they are printed directly with UV flatbed printers. Technical problems such as poor adhesion to the substrate, peeling, falling, and unclear pictures. For the printing of these special materials, it is necessary to coat the surface to improve the adhesion of the substrate.
   Commonly used UV flatbed printer coatings include glass, ceramic tiles, PPP, metal, leather coatings, and so on. Among them, glass, metal, and acrylic coatings are more commonly used, which is also determined by the appearance of these two types of materials. Use the coating that matches the substrate, you can clearly see the adhesion of the UV ink, do not mix.
  UV flatbed printer coating basically has the characteristics of high adhesion, full transparency, and high gloss. After coating the UV coating on the substrate, it is cured to form a fully transparent coating, which can better absorb the UV ink and significantly improve the adhesion of the UV ink on the substrate. Only a very small amount of smearing is required to obtain a stable and uniform surface coating on such a substrate, and then better absorb the UV ink and improve the adhesion of the UV ink.

   Many coatings for UV flatbed printers are quick-drying and easy to use. Generally, wear gloves and dip a proper amount of coating liquid on a non-woven fabric to coat a thin layer evenly on the surface of the substrate. There is also a small amount of coating that needs to be baked. Most of the coating liquids of UV printers have pungent odors. It is recommended to wear masks and gloves when using them.


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