The difference between UV offset ink and normal offset ink
With the concept of environmental protection further popular, more and more flexible packaging enterprises began to use environmental ink. What are the advantages of UV environmental protection ink compared with ordinary ink?
It dries quickly and has excellent performance.
Under UV light irradiation, UV ink can be completely dried and cured in only 1/10 second to a few seconds, and the speed is very fast. It can be dried during the transfer of online printing, ensuring that post-processing can be performed immediately after printing, which is beneficial to the post-processing and saves the final cycle. In the end, because the UV ink only dries under the irradiation of ultraviolet light, the performance of the ink can remain stable during the printing process or even in the ink fountain for a long time, and there will be no skinning on the ink roller.
Save energy and comply with environmental protection.
UV offset printing ink is more energy-efficient and less wasteful than any ink except natural evaporation drying ink. Compared with traditional inks, the polymerization and drying of UV inks is more thorough. The solid content of the ink after curing is close to 100%, without any evaporation or solvent contaminants. The ink film is 100% cured and almost free of VOCs, that is, during the curing process. Will not or very little emit volatile organic compounds, and will not cause harmful environmental pollution. In addition, the ink has a high flash point, is not easy to burn, saves heat energy, and is safe to use.
The ink particles are small and fine patterns can be printed.
UV inks can provide bright and bright colors to ensure good gloss and bright colors; due to the strong, fast-drying and cross-linking of the printed ink layer, this ink layer has high abrasion resistance and chemical resistance. Therefore, UV inks can be used for printing on outer packaging that requires wear resistance.
The printing adaptability is strong, and the printing range is wide.
UV ink can meet the needs of a variety of substrates, and the range is very wide, such as paper printing, plastic printing, tape measure printing, printed circuit boards, chrome plate printing, electronic parts printing, metal surface printing, aluminum foil surface printing, etc. In terms of printing methods, UV ink can be applied to a variety of printing methods such as letterpress, gravure, screen, and offset.
