The principles and advantages of uvled cured productsread count [269] release time：2020-04-09 23:06:00
According to the development trend of UV-cured products in recent years, whether it is the satin printing industry or the offset printing industry, UV-cured finished products are increasingly used in cured inks. Compared with traditional water-soluble resin inks, UV-absorbent solution inks have the advantages of good gloss, strong texture, and no harmful solvent evaporation. Especially in terms of ink drying, UV-absorbent solution inks can be cured in time under UV light, avoiding the shortcomings of traditional water-soluble resin inks such as long drying cycles and large areas, further improving efficiency and quality. packaging printing UVLED After light hardening the printing ink, UV light hardening equipment must be used to harden the printing ink instantly.
one, UVLED Curing principle of cured finished product:
UV curing finished products: After absorbing high-strength UV rays in UV curing equipment, UV curing agents or photosensitizers are added to the unique epoxy resin to generate active oxygen radicals, resulting in polymer, cross-linking and grafting reactions.
2. Advantages of inkjet printing of UVLED cured finished products:
In the past, ultraviolet light sources used in the printing industry widely used high-pressure mercury lamps and metal halide lamps. The reason is that the scale of lighting and power equipment is huge, and users are worried about power consumption and heat that will cause damage to copiers, copiers, and reactive oxygen species during use. With the development of UV curing technology, it is becoming more and more important due to its environmental characteristics, less air pollution than solvent type, lower operating costs and solvent form.
UVLED light curing machine technology is a new technology application in green industrial production. It has been selected by the North American Radiation Source Dry Curing Association as an industrial production technology with "5E" characteristics, which embodies the characteristics of this technology, namely high efficiency, environmental protection and energy saving, environmental protection, economic development, and broad adaptability. At present, the common UV dry-curing lamps are generally mercury arc lamps, called mercury lamps. The UV-Mg lamp has a limited service life, but the rational utilization of power energy is not high. In addition, although ultraviolet mercury lamps are not printing inks based on organic solvents, due to the pollution discharge and environmental protection characteristics of ultraviolet light, mercury lamps are also potential environmental pollutants, such as easily generating reactive oxygen species.
Since LED curing technology first appeared in 2008, LED curing technology has attracted widespread attention, and many printer and ink manufacturers have demonstrated their technologies. UV guided curing lamp is one of the most attractive technologies in the power curing industry. Its environmental protection, energy saving, high efficiency, economic development, environmental protection, wide adaptability, no infrared radiation, and no active oxygen emission, cold light curing has attracted more and more attention from people. At this stage, the market is leading the
The demand for tea UV technology is very strong, and digital printing has become the largest market for this technology. The most innovative among them, the advantages of UV light-emitting diode curing lamps can exactly meet the needs of this field.
