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In recent years, UV inks As the fastest growing Environmental protection Ink, applied more widely, the global UV market is growing at a rate of 10% per year. To the fierce competition in the market to survive, Print Enterprises need to improve product quality, so you must select the appropriate equipment and Consumables . As the UV ink printed to give a special value, therefore, its application is increasing. In the field of printing, UV offset printing has become a book cover, Advertisement Posters, decorative important way. Because UV ink decorative effect, free of harmful volatile substances, such as characteristics of rapid fixation by people of all ages. UV technology in offset application has shown great vitality. 1, UV ink application principle UV inks major components include: organic pigments, photopolymerization of the prepolymer, photosensitive monomer, photopolymerization initiation agent. The role of each component in Table 1. UV drying ink for its unique solution in the drying of printing problems. It works by drying UV ink on the ink of radiation-induced photochemical reactions, so as to achieve the purpose of curing ink. UV ink during the drying process there are two main chemical reactions. 1. Photochemical reaction Ink contained in the photopolymerization initiator, ultraviolet radiation in the photochemical reaction of free radicals occurs. 2. Chain reaction Are caused by photochemical reaction of free radical chain reaction capacity, so that ink in the multi-functional groups of unsaturated prepolymer, multi-functional prepolymer, multi-functional crosslinking agent, reactive diluent chain reaction occurs, another crosslinking generates three-dimensional structure of the light curing products?? dried ink film. Therefore, UV ink drying depends on the drying characteristics of its light-cured, so that the ink from light by the light and dry conditions, with different properties, that is, printing ink does not accept the light, stable rheological properties, good printing condition; by ultraviolet radiation, after printing, fast drying, to meet the printing operation after the process has greatly improved production efficiency and greatly improve the adaptability of the ink drying. 2, UV ink advantages 1. Does not contain volatile organic compounds Most UV products contain little or completely free of organic Solvent , No solvent erosion was printed, does not pollute the body and the environment. 2. Suitable for non paper substrate Can be printed on ordinary substrates can also be printed on film, synthetic paper, metal or Plastic And other non-absorbent materials. 3. Postpress suitable for real-time Irradiated with UV light can be quickly cured. 4. Use less ink Because UV ink does not contain solvents, ink usage, it only requires the traditional 1 / 3 to 1 / 2 can be obtained with the ink the desired effect. 5. Color capability Adjust ink viscosity, hue and brightness, you can with a rich color, as long as the basic color mixing two or more kinds can be a variety of desired color. 6. Not easy to control the transparency of Can join the pigment according to the standard ratio or the pigment in the extended Ji Neida to the desired brightness. 7.UV printing ink in certain conditions can be Ice, refraction, grinding, wrinkles and other special effects processing. Highlights the essence of all in 2009, "China Industry News Daquan? Silk screen printing industry, particularly paper," On-line free of charge from More exciting, please see I am an expert from china-dental-supply.com, while we provides the quality product, such as Root Canal Files , Dental Handpiece Parts, Dental Laboratory Materials,and more.
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