UV inkjet printer curing principle and curing lamp maintenance

by:Arojet     2021-07-22
UV inkjet printer curing lamp is UV LED curing lamp, UV curing is ultraviolet curing, UV is the English abbreviation of ultraviolet, and its curing refers to the process of converting substances from low molecular weight to high molecular weight. After being irradiated with ultraviolet light, it can be quickly dried, so that the ink has the characteristics of quick drying, good adhesion, no clogging of the nozzle, and easy maintenance. UV inkjet printer curing principle UV ink is generally composed of 30-40% of the main resin, 20-30% of the active monomer, and a small amount of photoinitiator and similar leveling agent, defoamer and other additives. 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 then changes from liquid to solid in an instant. 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 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, whether the grounding is good; whether the control line and the irradiation head connection line are loose; whether there is a heavy object on the driver; whether the irradiation head and each air inlet and outlet of the water cooler are Is it clean and well ventilated; whether the lens of the irradiation head is clean; whether the connection line of the irradiation head is loose. Daily maintenance of UV curing lamp 1) After long-term use of water in the water-cooled equipment, some scale will form. When these small particles and scale reach a certain level, they will block the water channel and seriously affect the flow rate of 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 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 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 when the power is turned off.
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