Paper Machine Glass Fiber Doctor Blade

What is a Glass Fiber Doctor Blade

Doctor blade is critical components in modern papermaking processes. The selection and performance of the doctor blade have a direct impact on production efficiency, paper quality, and equipment protection throughout the paper machine. Due to their unique combination of strength, flexibility, and wear resistance, glass fiber doctor blade is widely used in various sections of the paper machine. It is particularly suitable for applications requiring high surface cleanliness, effectively removing moisture, fibers, and contaminants from the roller surface while maintaining reliable and consistent operation.

Applications of Glass Fiber Doctor Blade in Paper Machine

Glass fiber doctor blades are used to clean the calender roll surface, preventing the accumulation of paper dust, fillers, and rubber. Failure to do so can severely affect the gloss and smoothness of the paper. Due to its soft texture, glass fiber adheres closely to the roll surface, scraping away impurities without scratching or abrading the roll.

Applications in Yankee dryer cylinder creping, a core step in household paper production, involve the glass fiber doctor blade pressing its blade against the surface of the rotating Yankee dryer cylinder at a specific angle, "scraping" the paper from the dryer cylinder surface, creating wrinkles and imparting a soft, fluffy feel.

It can also be used in the press section. Glass fiber doctor blade provides stable line pressure while ensuring uniform coating, avoiding streaks and cracks, thereby obtaining high-quality paper.

Advantages of Glass Fiber Doctor Blade

• Excellent corrosion resistance. The material of glass fiber doctor blade is not easily corroded by chemicals, moisture, etc.

• High elasticity and good toughness. Glass fiber doctor blades can better absorb the vibration and slight deviation of the roller, maintain stable and uniform line pressure, and provide continuous and consistent scraping effect.

• Long service life, good wear resistance and fatigue resistance, reducing downtime and replacement time.

Glass Fiber Doctor Blade Types

	SHCG1-Glass Fiber Doctor Blade Suitable various rolls from forming section to reel cylinder Key Features: Microfiber combined with flexible epoxy resin, excellent adhesion to roll surface, excellent chemical property, 185℃ temperature resistance.
	SHHT2-Glass Fiber Doctor Blade Suitable for high temperature enviroment rolls, calender rolls, etc. Key Features: Combination of high temperature resistant resin and glass fiber, excellent cleaning effect.