| How to maintain the printing rubber roller? | |
| 2021-5-19 | |
| 1. Before printing Check whether there is any foreign matter between the roller and the roller, whether the rubber roller is intact, and whether the pressure between the rollers is even and consistent. Confirm that it is normal and clean and clean before printing. 2. In printing The rubber roller should always maintain a good contact state during operation, and the force should be uniform. Regardless of the width of the printed product, the entire rubber surface of the rubber roller must be lubricated with ink; depending on the amount of ink accumulated between the rubber rollers, the ink volume should be adjusted in time to ensure the printing quality. Under the prerequisite of ensuring the printing speed, in order to prevent the ink from drying too fast, the adhesiveness of the rubber roller is reduced, and the surface is skinned, the amount of drying oil should be controlled for the ink that needs to be added to prevent the rubber roller from running. No ink and uneven ink transfer. 3. After printing The roller and the roller and the roller and the printing plate should be disconnected in time to remove the load pressure to prevent the rubber surface from being deformed by static pressure. It is necessary to clean the residual ink on the surface of the rubber roller in time to prevent the drying of ink sticks, ink film, ink feces and dirt floating on the rubber surface, (especially the ink sticks on both ends of the nylon roller). , In severe cases, the phenomenon of pitting and dregs will occur. 4. Rubber roller cleaning Before and after printing, the rubber roller must be cleaned with a special cleaning agent to keep the surface of the rubber roller smooth and clean, ready for use. If the cleaning is not timely, the ink will adhere to the micropores through the fluffy micropores on the surface of the rubber roller, and the paper hair and dirt will adhere to the surface of the rubber roller. If the parking time is too long, the ink film will cause the contact surface of the two rollers to stick, and the rubber surface will be torn when driving again, and the rubber roller will be scrapped. If the cleaning is not in place, glaze will occur, which will result in reduced ink affinity and transfer, and even cause deinking. Glazing increases the surface hardness of the rubber roller and reduces its elasticity. At the same time, it accelerates the abrasion of the rubber roller, causing pitting and cracking on the rubber surface, causing slag drop and affecting printing quality.
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