Field drawing refers to the phenomenon of poor ink transfer in the solid part of a pattern. There are white and solid lines of varying lengths along the direction scraped by the scraper on the solid edge of the pattern.

　　Reason for occurrence:

　　(1) When printing, the angle of the scraper is not appropriate. Generally, it is because the scraper is too hard and the blade is too tough to directly contact the layout.

　　(2) The printing speed is too fast and the ink viscosity is too high.

　　(3) The pressure of the embossing roller is insufficient, resulting in poor ink transfer.

　　(4) The polishing problem of the plate roller is that the chrome burrs on the edge of the field have not been removed.

　　(5) Quality issues with the plate rollers, such as thick mesh walls at the printing points, lack of solidity on site, or wear and tear on the printing points.

　　Solution:

　　(1) Adjust the angle of contact between the scraper and the layout to avoid direct contact between the blade and the layout.

　　(2) Reduce printing speed and ink viscosity appropriately.

　　(3) Increase the pressure of the embossing roller appropriately.

　　(4) After the above work adjustments, the wire drawing phenomenon still has not been improved. It is necessary to consider the quality of the plate roller and measure whether the network points are normal. If the network points become smaller and the mesh wall becomes thicker, the plate needs to be remade. After testing, the network display is normal and needs to be re polished.

　　(5) If there is no actual drawing phenomenon at the beginning of printing, and drawing occurs after a period of printing, the problem of dot wear needs to be considered, and re plating treatment is required.