Functional Differences of Doctor Blades in Different Positions – Proper Use Boosts Efficiency

Doctor blades in different positions of a paper machine serve different functions, and only by performing their respective duties can the production line run smoothly.
The wire section blade mainly removes fibers and fillers on the wire surface, prevents mesh clogging, and ensures dewatering efficiency.
The press section blade wipes off moisture and sticky substances on the roll surface to avoid watermarks and spots on the paper.
The dryer section blade cleans the dryer cylinder surface, removes paper scraps and resin, improves heat transfer efficiency, and reduces steam consumption.
The coating blade accurately controls the coating volume to ensure an even coating layer, enhancing paper smoothness and gloss.
Paper mill operators must be familiar with the functions of blades in each position and carry out targeted maintenance to maximize equipment performance.