Cleaning Method of Anilox Roller in Flexo Printing Machine

During the use of the Flexo Printing Machine, the basic reasons for the blockage of the anilox roller are the following three. One is that the anilox roller is not cleaned thoroughly when the printed parts are replaced in the Flexo Printing Machine. The second is that the Flexo Printing Machine has been shut down for a long time so that the anilox roller has not been cleaned. Third, the ink drying performance is too fast. Therefore, to maintain the accurate transfer of ink volume, the anilox roller must be properly cleaned. Next, let us understand the cleaning method of the anilox roller in the Flexo Printing Machine. Here are some answers.

Here is the content list:

• Chemical solvent scrubbing method

• Chemical solvent immersion method

• Low-pressure spray method

• Plastic bead jet cleaning method

Chemical solvent scrubbing method

Spray the chemical solvent on the surface of the anilox roller of the Flexo Printing Machine, select an appropriate fine brush according to the material of the anilox roller, and brush repeatedly with the brush. This method is only suitable for cleaning anilox rolls with coarse mesh lines. Its advantages are low cost, convenient cleaning, and no environmental pollution. But its disadvantage is that it cannot go deep into the ink hole for brushing, so the cleaning is not thorough.

Chemical solvent immersion method

All or part of the anilox roller in the Flexo Printing Machine is immersed in a highly corrosive cleaning agent tank with a high pH value so that the solvent can dissolve the softened and dry ink. Finally, rinse off the corrosive cleaning solution and the fully corroded and softened ink with clean water. Although this method is more effective, if used for a long time, the corrosive solvent will penetrate the protective layer and corrode the steel body, which is not conducive to environmental protection.

Low-pressure spray method

Using sodium bicarbonate and baking soda as cleaning powder to spray wash the anilox roller in the Flexo Printing Machine under low pressure, the dry ink, resin, coating material, etc. remaining in the ink cavity can be thoroughly cleaned. However, it should be noted that the injection pressure should not be too high, otherwise the ceramic soil layer may be separated from the anilox roller body. Sodium bicarbonate and sodium bicarbonate are softening cleaning media, which are easily soluble, non-toxic, and harmless, and meet today's global environmental protection requirements. The practice has proved that the cleaning effect of this method is good, the volume of the ink hole can be restored, and the cleaning can be carried out directly on site.

Plastic bead jet cleaning method

The principle is similar to the low-pressure spray cleaning method, but the cleaning powder uses plastic beads. This cleaning method increases the cleaning speed of anilox rolls in Flexo Printing Machine by 30%. And while improving the quality of printed products, it can also prolong the service life of the anilox roller. This method consumes fewer plastic beads, and there is no discharge of harmful substances and precipitation of chemicals in the cleaning process, which is conducive to environmental protection, high efficiency, and safety.

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