Minerals Powering Print Excellence
From high-brightness paper coating to superior filler performance, QTM minerals are integral to some of the most demanding paper manufacturing applications worldwide.
Our hydrous kaolin grades deliver the precise optical, rheological, and functional properties that paper mills require for world-class end products.
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Paper Coating
- Art Paper
- Board Coating
- Coating Clay
- Gloss Coating
- Label Paper
- Matte Coating
- Packaging Paper
- Paper Coating
- Pigment Coating
- Printing Paper
- Specialty Paper
- Writing Paper
Paper Filling
- Brightness Enhancement
- Bulk Enhancement
- Copy Paper
- Filler Kaolin
- Filler Retention
- GCC Alternative
- Kraft Paper
- Newsprint
- Opacity Improvement
- Paper Filling
- Specialty Papers
- Tissue Paper
Featured Product
QTM PaperBright™ is a premium hydrous kaolin developed for paper coating and filling applications. It enhances brightness, opacity, printability, and surface smoothness while improving machine performance.
| Parameter | Typical Value |
| SiO₂ | 45–47 % |
| Al₂O₃ | 37–39 % |
| Fe₂O₃ | ≤0.35 % |
| TiO₂ | ≤0.50 % |
| LOI | 13–14 % |
| Property | Typical Value |
| Brightness | 90–92 % |
| Moisture | <1.0 % |
| pH | 6.5–7.5 |
| Particle Size <2 µm | 80–90 % |
| Oil Absorption | 40–50 g/100 g |
Grade Selection
Five calibrated grades — from kraft paper to premium coated paper.
| Product Grade | Brightness (%) | Particle Size (<2 µm) | Oil Absorption | Application |
|---|---|---|---|---|
| QTM-PG 100 | 60 % | 38 | Kraft Paper | |
| QTM-PG 200 | 70 % | 40 | Packaging Paper | |
| QTM-PG 300 | 80 % | 43 | Writing Paper | |
| QTM-PG 400 | 85 % | 46 | Printing Paper | |
| QTM-PG 500 | 90 % | 48 | Premium Coated Paper |
Key Properties
High Brightness
ISO brightness values exceeding 88% for paper coating applications, delivering superior optical performance.
Low Abrasion
Low Einlehner abrasion values protecting paper machine wires, blades, and printing press components.
Controlled Viscosity
Optimized particle shape and size distribution ensuring ideal rheological behavior in coating slips.
Opacity Enhancement
High refractive index and controlled platelet morphology contributing to superior sheet opacity.
Our Various Applications
Ready to Enhance Your Paper Formulation?
Our performance minerals team can advise on the right grade and specification for your coating or filling application.
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