UV ink, it can be said is a comparison of green environmental protection type of ink, UV printing has also become one of the most environmental friendly printing methods, always walk in the front end of the printing industry, practice the concept of green, leading environmental protection development and continue to move forward. UV ink with curing speed fast, does not contain solvents, printing non dusting and other advantages, in the printing industry has been widespread concern and UV curing device also arises at the historic moment. Industry in recent years developed a quick printing curing light source, ink curing light source, printing curing light source LED light source, because of its lower energy consumption, high curing efficiency, and supporting led-uv ink led-uv curing light source technology is becoming printing enterprises to achieve energy saving and environmental protection of the "new favorite".
1, advantage
Compared with the existing UV light source, LED-UV light source, fast curing printing ink curing light source, light source, light curing printing advantage is mainly reflected in the following aspects.
(1) lower energy consumption. The effective luminous efficiency, can reduce energy consumption by 80% ~ 70%.
(2) in the curing process, no ozone, no need to install the device or exhaust air duct and other auxiliary devices, it can maintain a clean working environment, save costs.
(3) flexibility is higher. LED-UV curing light source, fast printing and curing light source, ink curing light source, printing and curing light source using point light source, can be combined with the paper size, grading set irradiation range.
(4) can instantly open (off) lights. Traditional UV light source should be preheated after 1 minute to start, cooling after four minutes to close, in the work caused great waste, and led-uv curing light source, fast printing light curing, ink curing light source, printing curing light source can at the time of printing opened instantly, work efficiency high amplitude.
(5) calorific value is small. Traditional UV curing light source power consumption, photoelectric conversion efficiency is low, the heat is large, easy to the printer itself and the printing material damage. The led-uv curing light source, fast printing light curing, ink curing light source, printing curing light source of the photoelectric conversion efficiency is high, temperature of the tube surface is only about 60 DEG C, can effectively prevent the prints due to overheating and shrinkage deformation, so as to achieve higher overprinter precision.
(6) long service life. Led-uv curing light source, fast printing light curing, ink curing light source, printing curing light source service life can be up to 2 million to 3 million hours, is 10 times more than the existing high pressure mercury lamp and metal halide lamps (1500 hours), can significantly reduce the number of light source replacement.
2, LIMITED
However, LED-UV curing source there still exist limitations.
(1) the irradiation intensity is weak, if the printing speed is too fast, easy to cause the ink curing is not complete.
(2) only emit long wave UV light, UV curing can not issue a short, it is not conducive to UV light oil.
(3) LED-UV curing source with high price.
(4) the existing printing machine transformation difficulty. This is because led-uv curing light source irradiation distance is short, must be with the surface of the substrate brachytherapy, in order to ensure that the ink curing, so the transformation of the existing press inconvenience.
(5) developed UV ink corresponding to, currently in use is not very wide.
Is a strategic measure of China's printing industry to implement the green printing, in order to promote the development of the printing industry development mode change, change of printing industry in our country, especially the high consumption, high pollution of the packaging printing industry extensive is conducive to the healthy and sustainable development of the industry of packaging and printing. At present, although the led-uv curing light source, fast printing light curing, ink curing light source, printing curing light source technology is not very mature, but under the efforts of the national policy support and industry peers will become the mainstream of the printing industry.
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