Today, flexographic printing is in a leading position in the development of the printing industry in the world today. The new development of Anilox roller technology has become a decisive factor in promoting the rapid development of flexo printing process, especially due to the emergence of laser engraving Anilox roller, making flexo printing industry production almost on par with gravure and offset printing industry production, sprayed with ceramic surface layer Anilox roller improves the transfer performance of the ink layer and improves the quality of the ink layer. This is the result of the adoption of new technology. Anilox roller should be able to deliver ink to the printing plate quantitatively according to a predetermined standard, and the ink layer should be as thin and uniform as possible. The stability of the ink layer will restrict the printing quality of the image. In the transfer process, the thinner the ink layer is, the easier it is for printing adjustment, and the smaller the dot expansion rate; the uniformity of the ink layer helps to improve the constancy of ink transfer.

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1. The uniformity of the ink layer
Why is it possible to obtain an excellent uniform ink layer after using the laser-engraved Anilox roller? The main reason is that it can reduce the gap between the cells. In the traditional mechanical engraving method, the metal moving method is used to Cells are formed. In laser engraving, the ceramics are vaporized by a laser beam to form cells. It is precisely because of this fundamental difference that laser engraving Anilox roller has the advantage of strict control. First, it can significantly reduce the gap between the holes, that is, the thickness of the mesh wall, and second, it can carve a higher density of cells in the same true line distance. Based on the above two factors, the ink layer delivered by this cell has a higher uniformity.
Second, the specifications of engraving
There are three specifications for laser engraving: 30° hexagon, 45° diamond and 60° hexagon. After polishing the surface of the ceramic Anilox roller, a laser beam with rounded corners burns out round pits with parabolic bottom pits on the ceramic surface. The diameter of the laser beam can be determined according to the number of mesh lines or the size of the mesh. Adjust, no matter how you adjust, the beam always remains circular.
Third, the ink release and cleaning properties of the cell
If the Anilox roller has been able to deliver a thin and uniform ink layer, but the ink release speed is not fast enough, especially in high-speed printing, or the bottom of the cell cannot be cleaned, what should be done? Obviously this is due to the net The hole depth is too large, and the problem of insufficient ink transfer in the future due to the difficulty of ink cleaning.
Of course, there is no problem if the cells are too shallow. If they are too shallow, the desired effect will not be printed. For example, the depth of the cell is 4 microns, and the error is 1 micron, which means that the error of capacity and depth reaches 25%. For a printer with a quality concept, this deviation is unacceptable. Moreover, when the depth of the cell is too shallow, it will also bring the disadvantage that the ink is easy to dry up. Therefore, for laser engraving Anilox roller, the best engraving depth should be selected, and it must not go to extremes.
How to determine the optimal cell depth? The depth of the cell must also consider the relationship between it and the size of the opening of the cell. If we compare a soup bowl with a test tube, although they have the same capacity, the bowl is faster than the test tube when the liquid in the container is poured out. This is not only because the depth of the bowl is smaller, it is also similar to the bowl. The width of the opening is large. The situation on Anilox roller is similar.
Fourth, the traditional number of mesh lines
Five, moiré pattern
Sixth, cleaning and maintenance
1. Use a suitable brush to remove the wet ink in time.
2. When brushing, use a rotating method to brush.
3. Special personnel should be responsible for cleaning and operation.
4. The protective cover should be used when storing.
5. The storage place of Anilox roller should be carefully selected.
6. Regularly conduct self-inspection and inventory statistics of Anilox roller in the factory.
7. Regularly educate and train operators.
Anilox roller manufacturer tells you that with the continuous promotion of flexo printing, if you want to compete with gravure and offset printing for the market, you must work closely with ink factories, printing plate manufacturers and prepress system suppliers to meet the needs of printing factories. Only in this way can we achieve greater development of our own.