Tissue paper production relies heavily on the performance of the Yankee dryer coating system. An unbalanced or poorly maintained coating leads to dryer scratches, excessive doctor blade wear, sheet breaks, and costly downtime. The coating modifier is often the overlooked key to a smooth, efficient, and long-lasting operation.
PR-10 Yankee Dryer Coating Modifier from Luterra Advanced Materials is a cationic liquid formulated with protective phosphates and specialty surfactants. It optimizes coating leveling, regulates thickness and flexibility, reduces dryer surface damage, and extends the service life of both the Yankee dryer and doctor blades. This guide covers five critical mistakes to avoid when using a dryer coating modifying agent.
Mistake #1: Using a Modifier That Is Incompatible with Your Three-Component System
The Yankee dryer coating system relies on a delicate balance between the adhesive, the release agent, and the modifier. An incompatible modifier can disrupt this balance, leading to poor adhesion, uneven release, or excessive blade wear.
PR-10 is compatible with various Yankee dryer three-component coating systems. It works in synergy with the adhesive (which keeps the paper adhered to the dryer) and the release agent (which ensures smooth detachment). The modifier balances the coating for a smoother and more stable film layer, preventing the issues that arise when one component is out of sync.
Mistake #2: Neglecting the Modifier's Role in Reducing Mechanical Wear
Many tissue producers focus only on the adhesive and release agent, overlooking the modifier's protective function. This can lead to increased dryer scratches, surface damage, and accelerated doctor blade wear and vibration.
PR-10 is specifically formulated with protective phosphates to reduce dryer scratches and surface damage. By optimizing the coating's leveling, thickness, and flexibility, it significantly lowers doctor blade wear and vibration, extending the service life of both the Yankee dryer and the blades. This directly translates to reduced downtime and maintenance costs.
Mistake #3: Overlooking Compatibility with Your Wet Strength System
In tissue production, the wet strength agent (like PAE) is crucial. A coating modifier that interferes with it can compromise the paper's final strength properties.
PR-10 is compatible with PAE wet strength systems. Under normal proportions, it does not reduce wet strength. As long as addition points are staggered, they will not interfere with each other. This allows you to maintain both coating performance and paper strength.
Mistake #4: Applying the Modifier Incorrectly
Incorrect application-whether through the wrong method, dosage, or position-diminishes effectiveness and can even cause problems.
For optimal results with PR-10:
Application method: Apply directly onto the Yankee dryer surface using a dedicated spray system. It can also be applied independently at the dryer doctor blade position.
Recommended dosage: 0.1–0.5 kg per ton of paper (based on finished paper). Start at the lower end and adjust based on actual coating performance and runnability.
Mistake #5: Using a Product That Doesn't Meet Safety Standards
For tissue products, especially those in food-contact or household grades, chemical safety is non-negotiable. Using a modifier that doesn't comply with hygiene standards can disqualify your entire production.
PR-10 complies with tissue paper hygiene and safety standards and can be used in the production of food-contact grade and household tissue paper. This ensures your production meets regulatory requirements while maintaining performance.
PR-10 Dryer Coating Modifier: Product Specifications at a Glance
| Parameter | Specification |
|---|---|
| Appearance | Slightly yellow transparent liquid |
| Ionicity | Cationic |
| Specific gravity (20°C) | 1.03–1.13 g/cm³ |
| Water solubility | Readily soluble in water |
| pH (neat solution) | Neutral to weakly alkaline |
| Stability | Stable when sealed at room temperature |
Application Scope
PR-10 is suitable for:
All tissue paper machines using virgin pulp or wastepaper pulp
Various Yankee dryer three-component coating systems
Production of food-contact grade and household tissue paper
Tips for Optimal Results
Recommended dosage: 0.1–0.5 kg per ton of finished paper
Application: Use dedicated spray system on the Yankee dryer surface
Alternate method: Apply at the dryer doctor blade position
Storage: Keep indoors at 5–35°C, avoid direct sunlight and high temperatures
Frequently Asked Questions
Q: How should it be used together with adhesive and release agent?
A: The three products work in synergy: the adhesive keeps the paper adhered to the dryer, the release agent ensures smooth detachment, and the modifier balances the coating for a smoother and more stable film layer.
Q: Will it affect tissue wet strength?
A: It is compatible with PAE wet strength systems. Under normal proportions, it does not reduce wet strength. As long as addition points are staggered, they will not interfere with each other.
Q: Can I get a sample and technical support?
A: Yes. Samples and customized formulation support are available. Our company can also customize Yankee dryer spraying equipment and provide professional installation and commissioning guidance as per customer needs.
Ready to optimize your Yankee dryer coating performance?
Contact Luterra Advanced Materials for a free sample and expert technical consultation. Our team can help you fine-tune your three-component coating system for longer blade life, fewer sheet breaks, and higher tissue quality. [Get Free Quote / Contact Now]
