A Brief Discussion on the Advantages of LED-UV Curing Systems in Water-Cooled UV Equipment
Release date:
2019-02-25
In recent years, with the development of technology, UV equipment manufacturers have developed UV-LED light sources. Due to their lower energy consumption and higher curing efficiency, the LED-UV curing system, composed of LED-UV inks and matching equipment, is becoming a "new favorite" for UV equipment manufacturers to achieve energy saving and environmental protection. Let's follow Qingda editor to learn more about it. LED-UV Curing System The advantages of water-cooled UV equipment.
Mercury is an essential metallic element in traditional UV lamps. The United Nations Environment Programme officially announced that more than 140 countries have reached a consensus on the world's first international convention to limit mercury emissions—the Minamata Convention on Mercury. It will monitor and restrict the production and trade of mercury-containing products globally to reduce the environmental damage and impact on human health caused by mercury pollution.
The convention stipulates that mercury-containing products prohibited from production and import and export before 2020 include: batteries (except button batteries used in implantable medical devices); switches and relays; certain types of fluorescent lamps; soaps and cosmetics. This sudden blow is undoubtedly a setback for some UV light source manufacturers.
From the perspective of energy saving alone, a 5KW exposure machine using mercury lamps, operating 24 hours a day for 350 days a year, with an industrial electricity price of 1.08 yuan/kWh, will cost more than 130,000 yuan in electricity alone per year. This is also a considerable expense for enterprises. In comparison, under the same technical requirements, the annual electricity cost of a UV LED exposure machine is less than 15,000 yuan using the above calculation method.
Advantages of UV LED Light Sources ：
(1) Lower energy consumption, high luminous efficiency, can reduce energy consumption by 70%～80%.
(2) No ozone is generated during curing. LED-UV light sources do not produce short-wave ultraviolet light, so ozone is not generated during curing, and auxiliary devices such as deodorizing devices or exhaust pipes are not needed, maintaining a clean working environment. This allows LED-UV curing devices to be used in factories with dense surrounding buildings.
(3) Higher flexibility. LED-UV light sources use point light sources and can be combined with paper size to set the irradiation range in grades.
(4) Instant on/off. Traditional UV light sources need to be preheated for 1 minute before starting and cooled for 4 minutes before turning off. To improve work efficiency, many operators usually keep the UV light source on, resulting in significant waste. LED-UV light sources can be turned on instantly during printing, greatly improving work efficiency.
(5) Low heat generation. LED-UV light sources have high photoelectric conversion efficiency, and the surface temperature of the lamp tube is only about 60℃, which can effectively prevent the printed matter from shrinking and deforming due to overheating, thus achieving high register accuracy.
(6) Long service life. The service life of LED-UV light sources can be as high as 20,000～30,000 hours, which is more than ten times that of existing high-pressure mercury lamps and metal halide lamps (1500 hours), greatly reducing the frequency of light source replacement.
Water cooling, light source, UV, LED-UV, curing
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