Gravure printing is a widely used printing method that relies on precise ink metering to achieve high-quality results. The doctor blade main job is to control the amount of ink applied to the printing cylinder. If the blade does not function properly, issues such as blade lines, ink dragging, and even cylinder damage can occur, affecting the final print quality.

Flexographic printing is a modern relief printing technique that relies on doctor blades to control the ink thickness applied to the printing plate. On textured surfaces, precise ink metering is essential to achieve consistent results. If the doctor blade does not meet the required quality, frequent blade changes may become necessary, affecting printing consistency and efficiency.

Doctor blades are also widely used in the electronics industry, particularly in solder paste printing for LED displays, touchscreens, and other electronic components. During manufacturing, doctor blades ensure a precise and even application of solder paste onto circuit boards, which is essential for maintaining consistent solder joints and reliable connections.