As a curing light source, UV LED is gradually being used in communication, electronics, optics, printing and other industries due to its low heat, small size, energy saving and environmental protection. Hongli Optoelectronics has launched a UVA LED light source that can completely replace the curing of mercury lamps. The band covers 365nm-405nm, which can meet the needs of various applications of UVA. At the same time, Hongli Optoelectronics will cooperate with customers to provide customized application solutions, and help customers select the most effective and cost-effective UV LED light source from the application side. At present, some customers have begun to adopt the company's UVA LED products.
Hongli Optoelectronics Co., Ltd. is the first package company in China to develop a full range of UV LED products (UVA/UVB/UVC). The current distribution of products from the band and power is very comprehensive. In addition to the complete product range, Hongli Optoelectronics also has forward-looking technical advantages in UV LED packaging. The company is the only packaging company in China that can develop and mass produce deep ultraviolet LEDs.
How does UVA LED achieve the curing effect of replacing mercury lamps? In order to cooperate with customers to propose effective application solutions, Hongli Optoelectronics has developed a solidification application for UV LEDs through research on the curing principle and cooperation with UV LED curing equipment manufacturers.
Curing principle: The cured material that is generally irradiated is composed of an oligomer, a monomer, a photoinitiator, an auxiliary agent and the like. The oligomer is a high molecular polymer having an unsaturated double-strand structure, and can be converted into a crosslinked solidified body after the reaction. Monomers are the basic unit of organic synthetic materials and are used primarily as diluents to reduce the viscosity of chemical systems. The photoinitiator generates two kinds of high-energy active group radicals and cations under the irradiation of UV light, and promotes cross-linking and solidification of the unsaturated double bonds of the oligomer and the monomer. The additive is not directly involved in the curing process, and its main function is to prevent the cured material from gelling during storage or slow curing under dark light.
Comparison of curing effect: Hongli Optoelectronics cooperates with domestic well-known UV curing equipment manufacturers to develop UV LED curing equipment, and manufactures UV LED into light source module such as light bar and light board. Instead of mercury lamp, it is installed inside the equipment as UV light source to cure. The material is illuminated. The UV LED band is more concentrated and free of clutter. The power consumption of the specific band is removed from the mercury lamp and the clutter is added according to the need. In addition, the power consumption of the LED is far lower than that of the mercury lamp, and the heat treatment is performed. It is also much easier than the mercury lamp. The light source has high directionality, and there is no large amount of light overflowing the device to cause chronic damage to the surrounding employees' skin. At the same time, it can effectively improve the proportion of the space occupied by the curing device.
After many practice tests by Hongli Optoelectronics and curing equipment manufacturers, the curing effect of the curing equipment using UV LED light source has no difference between the curing effect of the production material and the curing effect of using mercury lamp, and the appropriate module can be selected according to different curing requirements. The product exhibits considerable flexibility in application.
Hongli Optoelectronics Co., Ltd. is the first package company in China to develop a full range of UV LED products (UVA/UVB/UVC). The current distribution of products from the band and power is very comprehensive. In addition to the complete product range, Hongli Optoelectronics also has forward-looking technical advantages in UV LED packaging. The company is the only packaging company in China that can develop and mass produce deep ultraviolet LEDs.
How does UVA LED achieve the curing effect of replacing mercury lamps? In order to cooperate with customers to propose effective application solutions, Hongli Optoelectronics has developed a solidification application for UV LEDs through research on the curing principle and cooperation with UV LED curing equipment manufacturers.
Curing principle: The cured material that is generally irradiated is composed of an oligomer, a monomer, a photoinitiator, an auxiliary agent and the like. The oligomer is a high molecular polymer having an unsaturated double-strand structure, and can be converted into a crosslinked solidified body after the reaction. Monomers are the basic unit of organic synthetic materials and are used primarily as diluents to reduce the viscosity of chemical systems. The photoinitiator generates two kinds of high-energy active group radicals and cations under the irradiation of UV light, and promotes cross-linking and solidification of the unsaturated double bonds of the oligomer and the monomer. The additive is not directly involved in the curing process, and its main function is to prevent the cured material from gelling during storage or slow curing under dark light.
Figure 1 UV curing principle icon
Comparison of curing effect: Hongli Optoelectronics cooperates with domestic well-known UV curing equipment manufacturers to develop UV LED curing equipment, and manufactures UV LED into light source module such as light bar and light board. Instead of mercury lamp, it is installed inside the equipment as UV light source to cure. The material is illuminated. The UV LED band is more concentrated and free of clutter. The power consumption of the specific band is removed from the mercury lamp and the clutter is added according to the need. In addition, the power consumption of the LED is far lower than that of the mercury lamp, and the heat treatment is performed. It is also much easier than the mercury lamp. The light source has high directionality, and there is no large amount of light overflowing the device to cause chronic damage to the surrounding employees' skin. At the same time, it can effectively improve the proportion of the space occupied by the curing device.
Figure 2 Improved illustration of UV curing equipment (UV LED instead of mercury lamp) 
Table 1 UV curing equipment mercury lamp source point and UV LED advantage point comparison table 
Figure 3 Comparison of the effect of mercury lamp and UV LED after curing (no difference in effect)
After many practice tests by Hongli Optoelectronics and curing equipment manufacturers, the curing effect of the curing equipment using UV LED light source has no difference between the curing effect of the production material and the curing effect of using mercury lamp, and the appropriate module can be selected according to different curing requirements. The product exhibits considerable flexibility in application.
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