UV glazing, UV ink is a solvent material, solvent content less than 5%, neither volatile, so almost pollution-free to the environment. In addition, UV glazing, UV ink film although not a short time degradation, return to nature, but completely cured UV glazing, UV ink toxin free. And the substrate can be recycled..During recovery, the film layer and substrate can be mechanically separated and broken to remove. Such as paper after UV light oil, the paper will be recycled to the paper mill beating, light film is broken into the bottom of the pool by the beating machine, and paper reuse, will not produce white pollution similar to mulching.
1.UV offset printing ink printing suitability and performance standards and ordinary offset printing ink is basically the same, otherwise cannot use the same offset press printing.But because UV inks are solvent - free inks, linker and ordinary solvent - based inks system, printing suitability and characteristics will not be exactly the same.
2.UV offset printing ink to adjust its viscosity can not be like ordinary offset printing ink with solvents to adjust, and with different levels of prepolymer first prepared very thick paste, and then add thinner monomer to adjust.
3.Offset press using UV ink to replace UV printing cots, PS version, rubber cloth. Because UV ink in the thinner monomer, photoinitiator, sensitizer, such as the material to promote aging and corrosion.The performance of the cots for a long time continuous use of swelling, cracking phenomenon, the performance of rubber blanket for the ink transfer rate has changed but also aging phenomenon. The PS version appears to cause the photosensitive layer to fall off quickly. The correct use of fountain solution to prevent UV ink wiredrawing is critical.
4.Different colors of the ink UV light transmittance is different, so the curing efficiency is different..For transmittance of the ink to adapt to when the addition of photoinitiator and other accelerated curing substances, UV wavelength such as 417nm wavelength UV light irradiation is also conducive to accelerated curing.Good light transmittance of the ink to add less photoinitiator, the purpose is to make multi-color UV ink to maintain the same curing rate, easy to install UV curing equipment..