Information about Anilox Rolls in Flexographic Printing Machines

The flexographic printing machine adopts a typical short ink path ink supply system, which has a relatively simple structure and is mainly composed of four parts: an ink tank, a rubber roller, a doctor blade, and an anilox roller. Among them, the anilox roller is the core component of the flexographic printing machine, which is responsible for evenly transferring a certain amount of ink to the printing plate. Next, let's learn about anilox rolls in flexographic printing machines. Here are some answers.

Here is the content list:

• An introduction to anilox rolls

• Precautions for the use of anilox rollers

An introduction to anilox rolls

The anilox rolls used in flexographic printing machines are classified according to the materials coated or sprayed on their surfaces, mainly including chrome-plated anilox rolls and ceramic anilox rolls. The chrome-plated anilox roll is usually an anilox roll formed by extruding a metal die on the surface of the soft roll body to generate regular meshes on the surface of the roll body, and then chrome-plated on the surface. The laser-engraved ceramic anilox roller is made of high-temperature and wear-resistant coating materials in aviation and aerospace and is engraved by laser according to a certain density, depth, and certain angle and shape. This anilox roll is characterized by high cost, wear-resistance and, if used properly, can last for years. If used improperly, not only the life will be shortened, but also the anilox roller will be scrapped, which will further affect the user experience of the flexographic printing machine.

Precautions for the use of anilox rollers

During use, the position of the anilox roll on the flexographic printing machine depends on the specific print. In different prints, the position of the anilox roller is also different. Therefore, the flexographic printing machine often needs to replace the anilox roller during printing. At present, most of the narrow-width machines used are solid steel anilox rolls. This kind of anilox roll is very heavy, so when installing the anilox roll, care should be taken to avoid touching the surface of the anilox roll with other metal objects. Because the ceramic coating is very thin, it is easy to cause damage in the event of a collision. During printing and cleaning of the flexographic printing machine, drying of the ink on the anilox rollers should be avoided. When cleaning, it is necessary to use a special detergent for cleaning, and also ensure that the cleaning is clean and thorough. At the same time, it is necessary to develop the habit of using a high-magnification magnifying glass to observe the mesh points of the anilox roller. Once it is found that the ink is deposited on the bottom of the cell and has a tendency to gradually increase, it should be cleaned in time. If the above method does not work, it can be treated by ultrasonic or sandblasting, but it must be carried out under the guidance of the anilox roll manufacturer.

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