UV light curing: The advantages of LEDUV double coating system: (1) No environmental pollution, no solvent volatilization, which is safe and environmentally friendly. (2) Fast drying speed and high production efficiency. Since the photo-curing reaction can be completed in an instant, the UV LED varnish can be directly stacked or enter the next process after printing and curing, which speeds up the production process and improves production efficiency. (3) Not limited by the type of substrate, not only can be used for glazing on the surface of paper, aluminum plate, plastic material, etc., but also used for glazing on the surface of polymer board, furniture, metal material, wireless material, etc. (4) The volume of the UV curing machine is small, and the effective utilization rate is high. Therefore, the site and energy are greatly saved, and the investment in equipment in the early stage is reduced. (5) The surface of the printed matter after UV glazing has high hardness, is resistant to friction, is not prone to scratches, and has strong chemical resistance. UVLED double coating system means that two coating units are usually located at the end of the printing press. In order to eliminate or reduce the loss of gloss, the possibility of UV varnish penetrating into the ink or the substrate, a layer of aqueous varnish must be applied between the wet UV offset ink and the final UV varnish to isolate the UV offset ink, and When drying with infrared or thermal radiation, it can be used as the basis for UV varnish adhesion. At the same time, each glazing unit must have an integrated drying device, which increases the size and equipment cost of the printing press, but the gloss range that the UVLED double glazing machine can achieve is larger than that of the pure UV printing machine. A4 File Folder,Portable A4 File Folder,Large Capacity A4 File Folder,Plastic A4 File Folder TAISHAN JINRI STATIONERY PLASTIC CO.,LTD , https://www.jinri-folder.com
Advantages of LEDUV double coating system