Doing a good job of monitoring and maintaining the UV curing system will help to enhance the abrasion resistance of the UV ink layer on the printed product. The author has summarized some experiences and shared with readers through research and analysis of the UV curing system. Method for real-time monitoring of UV curing system Real-time monitoring of the UV curing system means tracking and uninterrupted measurement of the UV curing system. The curing effect of UV ink mainly depends on whether the energy output by the UV curing system is appropriate, so the energy released by the radiation detector should be measured. The ray detector is a portable device specially used to measure the intensity of light in the spectrum. The measurement results will be displayed on the display in a digital form RIP, the unit is micro-focus. There are many types of ray detectors. More advanced ray detectors can detect data information such as light wave intensity, power density, and temperature of the light source. In addition, the operator can also connect the ray detector to a printer or microcomputer to obtain the relationship between various data information. Using this type of radiation detector, a graph of the change of curing effect with time at a certain temperature can be drawn. Using this graph for printing detection, you can detect the focus position of the light source and whether the light-emitting lamp tube is distorted. At the same time, you can also test the light source to emit Whether the light is parallel light, whether the heat of the scattered light is uniform, etc. The method of real-time monitoring of the UV curing system is as follows. 1. Install and configure the UV curing system. First clean the reflector of the UV curing system and check whether the lamp meets the requirements. 2. Standardize the setting of the UV curing system, including determining the number of UV lamps, the output power of the UV lamps, and the conveying speed of the conveyor belt. After completing these initial settings, Océ should check and judge frequently during the actual production process. Whether they can meet the production requirements. 3. Test the light wave intensity, light source temperature and other information with a ray detector, and record the test date, test location, and test results. Note: Before measuring various indicators of the UV curing system, ensure that the UV lamp is warmed up for at least 15 minutes. 4. When using a radiation detector that only provides digital information for measurement, the measurement should be divided into two parts for packaging anti-counterfeiting, that is, when all the lamps are working, the test work and each lamp are tested individually. When the effective curing width in the UV curing system becomes narrow, this method can accurately find the problematic UV lamp. 5. The UV curing system should be tested regularly in production. Maintenance of UV curing system Routine maintenance work should include the following aspects: 1. Detect and clean the surface of the reflector. The surface of the reflector should be cleaned frequently and kept clean. Although there are few solvents in the UV ink, some chemical components will evaporate during the curing process, which will corrode the surface of the reflector. If there are dark spots on the reflector when cleaning it, it means that it has been corroded, which has an effect on the amount of reflection of the reflector. 2. Check and clean the UV lamp. In the process of cleaning the UV lamp tube, carefully check the glass surface of the UV lamp tube for bubbles and whether there are cracks on the electrodes at both ends. In the process of inspecting the UV lamp, lightly turn the lamp to check whether there is enough space around the lamp consumables to avoid deformation due to heat expansion. If the bending of the lamp tube reaches a certain degree, the focus of the UV light source will change, thereby affecting the flatness of the UV curing effect; when the deformation is serious, it may also cause the lamp tube to swell. 3. On the premise of ensuring the gap of the lamp tube, ensure that the components of the UV curing system are tightly connected. 4. If the font of the air-cooling device is used in the UV curing system, it is necessary to ensure that the fan is in a normal working state, and all the ventilation pipes must be clean and tidy without any obstacles. If the UV curing system uses a water cooling device, it is necessary to ensure that the water level in the water tank is appropriate, so that the refrigeration equipment is in a normal working state. During the UV curing process, inadequate cooling will cause the temperature of the reflector, the electrical components in the light box, the shutter and the UV lamp tube to be too high, so it is important to ensure the normal operation of the cooling system. 5. Ensure that all safety measures are in place, and ensure that all linkage devices such as conveyor belts are working properly. Because each component of the UV curing system generates heat during its operation, it expands and contracts, so it is particularly important to ensure the safety of the circuit connection socket and other components.
Type C FIBCs refer to the class of FIBCs that actually protects against dangerous static discharges through grounding of the bag itself during the filling and discharging processes.Type C FIBCs are constructed of fabrics with conductive carbon, silver core or steel threads woven into them no more than a certain maximum allowable distance apart, creating a Faraday cage. Therefore, when one part of the FIBC is connected to a grounding cable, or comes into contact with any other conductor that is grounded, the entire bag then becomes safely grounded.
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These bags are safe when grounded because any electrostatic potential that builds up as a result of rapid filling or discharging quickly and safely exits the bag to ground via the network of conductive fibers woven into the fabric of the bag. This is true as long as the bag continually remains grounded.
