Leadtech inkjet printer: The leading manufacturer in CIJ printer - continuous inkjet printer, since 2011. 

UV inkjet printer curing principle and curing lamp maintenance

by:Leadtech Coding     2021-12-09

UV cij printer curing lamp is UV LED curing lamp, UV curing is ultraviolet curing, UV is the English abbreviation of ultraviolet, and its curing means that the substance is from low molecular weight In the process of transforming into a polymer, UV ink can be quickly dried after being irradiated with a certain frequency of ultraviolet light in a certain area, so that the ink has the characteristics of quick-drying, good adhesion, no clogging of the nozzle, and easy maintenance.

UV inks are generally composed of 30-40% main resin, 20-30% active monomers, and a small amount of photoinitiators and similar leveling agents, defoamers, etc. The curing principle is a complex photoreactive curing process: UV ink generates free radicals or cationic monomers to polymerize and crosslink after the photoinitiator absorbs the corresponding violet light, and it instantly changes from liquid to solid. process.

UV curing is different from heating curing, curing agent curing, and natural curing. It avoids the disadvantages of traditional solvent-based inks such as long drying cycle and large area, greatly improving Improve work efficiency and quality. The main factors that affect the quality of light solids are the wavelength and energy of the UV lamp, the speed of the conveyor belt, and the cooling system of the UV machine.

UV curing lamp work and maintenance inspection: check whether the connection of the power socket is reliable and whether the grounding is good; the control line and Whether the connection line of the irradiation head is loose; whether there is a heavy object on the driver; whether each air inlet and outlet of the irradiation head and the water cooler are clean and whether the ventilation is smooth; whether the lens of the irradiation head is clean; whether the connection line of the irradiation head is loose.

Daily maintenance items for UV curing lamps: 1) After long-term use of the water in the water cooling equipment, some scale will form. When these small particles and scale reach a certain level, it will Blocking the water channel seriously affects the flow rate of the water, thereby affecting the heat dissipation effect. Therefore, the water needs to be changed every 1 month. 2) In order to ensure that each air inlet and outlet of the irradiation head and the water cooler are clean and ventilated smoothly, clean each air outlet 1-5 times a month. When the power is off, wipe the housing and around the air inlet and outlet with a soft dry cloth. 3) In order to ensure the intensity and uniformity of the light, the lens of the irradiation head should be wiped at least 1-5 times a month. When wiping, it should be wiped with a soft dry cloth with the power off.


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