Papermaking Grade CMC is a water-soluble cellulose derivative specifically engineered to optimize paper production workflows.
| Quantity: | |
|---|---|
As a critical additive in modern papermaking, it enhances fiber bonding, improves coating stability, and boosts paper strength through its unique rheological properties. This grade is tailored to meet the diverse needs of paper mills—from tissue manufacturing to high-quality printing paper production—by balancing precise viscosity control and water retention capabilities. Its strong compatibility with other papermaking chemicals (e.g., sizing agents, fillers) makes it a versatile solution for enhancing overall production efficiency and final paper quality.
Parameter | Specification |
Appearance | White to off-white free-flowing powder |
Viscosity (2% solution, 25°C) | 20–800 mPa·s |
Degree of Substitution (DS) | 0.6–0.95 |
Purity | 65–95% |
pH Value (1% solution) | 6.0–8.5 |
Moisture Content | ≤10% |
Controlled Rheology: The 20–800 mPa·s viscosity range enables precise adjustment of pulp and coating flow properties, accommodating diverse paper grades from lightweight tissue to heavy-duty cardboard.
Enhanced Fiber Bonding: With a DS of 0.6–0.95, it strengthens interfiber adhesion, increasing tensile strength by up to 15% in laboratory trials.
High Purity Options: Grades with 95% purity minimize impurities, reducing machine deposits and enhancing paper brightness.
Broad Compatibility: Integrates seamlessly with sizing agents, fillers, and retention aids commonly used in papermaking processes.
Wet-End Additive: Improves fiber retention and drainage efficiency, reducing raw material waste by boosting filler retention rates by 10–20%.
Surface Sizing: Enhances paper smoothness and ink absorption, minimizing print-through in packaging and printing papers.
Coating Formulation: Stabilizes pigment dispersions in coated papers, preventing viscosity fluctuations and ensuring uniform coating application.
Q: What viscosity grade is best for tissue paper production?
A: Low viscosity grades (20–50 mPa·s) are ideal for tissue, as they promote softness while maintaining structural integrity during processing.
Q: Is Papermaking Grade CMC compatible with alkaline pulping processes?
A: Yes, its stable pH range of 6.0–8.5 ensures consistent performance in both acidic and alkaline pulping environments.
