Kaolin, a naturally occurring hydrated aluminum silicate mineral, plays a pivotal role in paper coating applications due to its unique properties. When processed into ultrafine powder, it enhances paper’s printability, brightness, and smoothness. This article explores the technical benefits and production process of kaolin powder, with a focus on advanced grinding solutions.
| Property | Impact on Paper Quality | Technical Requirement |
|---|---|---|
| High Whiteness (ISO 80+) | Improves print contrast | Fe₂O₃ content <0.8% |
| Plate-like Structure | Enhances surface smoothness | Particle aspect ratio ≥40:1 |
| Narrow Particle Distribution | Optimizes ink absorption | D90-D10 ≤5μm |
For premium coating-grade kaolin, we recommend our SCM Ultrafine Mill series, specifically engineered for mineral processing:
| Model | Capacity (t/h) | Power (kW) | Footprint (m²) |
|---|---|---|---|
| SCM800 | 0.5-4.5 | 75 | 15 |
| SCM1250 | 2.5-14 | 185 | 28 |
| SCM1680 | 5.0-25 | 315 | 42 |
For projects requiring coarser kaolin (30-325 mesh), our MTW175G model offers:
Advanced grinding systems enable:
Selecting appropriate grinding technology is crucial for producing paper-grade kaolin. Our SCM and MTW series mills provide tailored solutions for different fineness requirements, ensuring optimal coating performance. For specific project consultations, contact our technical team for equipment selection and process design.
