The effect of cleaning of flexographic anilox rolls on printing
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In the past, when people encountered light ink or uneven ink color, they often searched for ink, printing plates or paper. Finally, they found that the mesh was clogged and the amount of ink transferred was reduced. Now, the first thing that comes to mind when encountering similar problems is the problem of the anilox roller. However, some corrugated printing factories, they themselves pay insufficient attention to the quality of printing, not to mention the maintenance and cleaning of the anilox roller, and the obstruction of the anilox roller seriously affects the printing quality, so the long-term vicious circle is not good for the development of the whole enterprise. of. This will also affect the overall development of China's flexo and corrugated printing. On the contrary, some of our domestic joint ventures and wholly-owned large and medium-sized printing enterprises, due to different management concepts and market awareness, they attach importance to printing quality and every aspect of the printing process. This management experience and practice is worth learning.
In general, ceramic anilox rolls are not easily worn, and if the amount of ink transferred is found to be reduced, most of the causes are caused by clogging of the anilox roll mesh. The presence of a blockage in the mesh can be clearly observed with a high-power mesh microscope. Since the ink used in flexographic printing is easy to dry, it is not easy to dissolve and clean after drying, and the mesh is blocked for a long time; in addition to affecting the amount of ink transferred, the service life of the anilox roller is also shortened. The long-term use of the anilox roll blocked by the mesh will also increase the loss of the ink, and the phenomenon of whiteness and inelasticity during printing may occur, especially for large-area solid printing. Therefore, it is very important to ensure good cleaning of the anilox roller for stable printing quality.
Daily cleaning is the cleaning of the anilox roller in time after shutdown, which can effectively prevent the ink from drying out in the mesh. Generally, a special chemical cleaning agent is used to achieve cleaning by softening and dissolving the ink in the mesh. The specific cleaning method is to place the anilox roller in the cleaning solution for a period of time, and use a special wire brush (a copper wire brush for the metal anilox roller) to uniformly spirally scrub the surface of the anilox roller, and then rinse with water after washing. (FLEXOCLEAN) company's cleaning agent is a kind of environmentally friendly product with strong pertinence and obvious cleaning effect. It has been widely used in domestic flexo printing and corrugated printing industry. It can effectively clean water-based inks, solvent inks, UV inks, glazing oils, etc. After three years of promotion in the domestic market, there are many users who use Fulai Keli products.
For anilox rolls with a serious mesh plugging, the effect of periodic cleaning is more pronounced. The principle of periodic cleaning is to use the principle of low-pressure spray baking baking soda powder to hit the mesh residue to achieve the purpose of cleaning. Use our anilox roller cleaning machine to clean an anilox roller for narrow-width flexo printing machine. The cleaning process takes only 3-5 minutes, the cleaning effect is obvious, and the operation is simple. Nearly 100 flexo and corrugated printing plants in China use various types of washing machines we produce.
For the newly introduced manufacturers of flexographic printing equipment, in addition to the more reasonable configuration of the anilox roller, they also purchased the anilox roller cleaning equipment, which is undoubtedly good news for China Flexo. Paying attention to printing quality, it shows that our country's flexographic printing has entered a virtuous circle.