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Methods of troubleshooting for gravure printing machine

Update time : 2020-09-11

Source : Zhejiang Deguang Machinery Co.,Ltd

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Methods of troubleshooting for gravure printing machine

gravure printing machine

When using a gravure printing machine, there is a squeegee mark on the scratched printed matter. When a gravure printing machine fails, there are many methods to troubleshoot, the common ones are the following.


When printing with clean ink without foreign matter, adjust the viscosity, dryness and adhesion of the ink. When using a high-quality squeegee, adjust the angle between the squeegee and the printing plate.

Trouble 1: Using a gravure printing machine, the ink color is uneven and the ink color changes periodically on the printed matter. The troubleshooting methods are: correct the roundness of the printing plate cylinder, adjust the angle and pressure of the squeegee or replace with a new squeegee.

Trouble 2: The imprint is fuzzy and fluffy. The image level of the printed matter is parallel and fuzzy, and there are burrs on the edge of the picture and text. Elimination methods include: removing static electricity on the surface of the substrate, adding a polar solvent to the ink, increasing the printing pressure appropriately, and adjusting the position of the squeegee.

Trouble 3: Using a gravure printing machine, the blocking ink dries up in the cells of the printing plate, or the cells of the printing plate are filled with paper wool or paper powder, which is called blocking. The elimination methods are: increase the content of solvent in the ink, reduce the speed of ink drying, and use paper with high surface strength to print.

Trouble 4: The ink overflows the phenomenon of spots on the solid part of the printed matter. The method of elimination is: adding hard varnish to increase the viscosity of the ink. Adjust the angle of the squeegee of the gravure printing machine to increase the printing speed, and replace the deep-cell printing plate with a shallow-cell printing plate.

Trouble 5: When using a gravure printing machine, there is a squeegee mark on the scratched printed matter. The exclusion methods are: use clean ink without foreign matter to print. Adjust the viscosity, dryness and adhesion of the ink. Use a high-quality squeegee to adjust the angle between the squeegee and the printing plate.

Zhejiang Deguang provides high-quality gravure printing machines and is a well-known printing  machine manufacturer in China. If you want to know more about gravure printing machine, you can contact us.

Tag: gravure printing machine troubleshooting methods, gravure printing machine manufacturer

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