UV curing LED technology is derived from UV curing light source, mainly involving the UV curing light source of 395nm and the new material system that can be cured under the action of 395nm light.
In terms of UV curing equipment, the development of UV curing light source with long wavelength (395nm) and high power output has made great progress. The range of UV curing LED has been extended from individual point curing to surface curing. However, the high efficiency, high power and 3d curing have not been reported. At present, many printing equipment already used 100% UV curing LED technology.
The energy released by UV curing leds is already comparable or higher than that released by conventional UV curing light sources. Basically meet the need of the fastest curing speed, and this ultraviolet LED curing light has a lifespan of over 20,000 hours. UV curing LE point, surface light equipment has been applied in practice. In recent years, UV curing light wavelength in the control, the luminous efficiency and high power UV LED curing light heat dissipation technology is also in the continuous improvement, therefore, with the progress of UV curing LED and semiconductor technology, the development of high power, light intensity in the three dimensional controllable initiator absorption wavelength and emission wavelength and light matching, structure more simple is its development direction. In terms of new materials for UV curing leds, only a few inks were compatible with UV curing LED technology in 2006.
By 2013, more than 20 ink and material suppliers supported and configured UV curing LED ink.
The practical application results show that the uv curing light source system can increase the pigment content to obtain more vivid colors. This is very important for the development of the application field of UV curing LED technology. The solid particle capacity of traditional UV curing light source system is relatively small, while the UV curing light source system has a higher solid particle capacity.
At present, not only ink is widely used in UV curing LED technology, coating and adhesive are being specially configured to be able to UV curing light source curing products, printed circuit board (PCB), electronic component packaging is also used UV curing light source curing replace traditional UV curing. It can effectively reduce the size and area of uv curing light source, thus solving the heat dissipation problem of uv LED curing light source.
In the aspect of new materials, new initiator, monomer and prepolymer curing system was developed to improve the photocurable reactivity. By adding nano materials with functions of light, sound, electricity and magnetic to UV curing LED system, new slurry with inorganic functional powder dispersed in organic carrier is formed. Combining it with 3D printing manufacturing will bring more technological innovation and greater market.