R218 – High-Performance Titanium Dioxide in Paper Applications
🌍 Product Overview
R218 is a rutile titanium dioxide pigment produced by the sulfate process, coated with Al₂O₃ & SiO₂ and treated with a special organic surface layer. This combination provides excellent whiteness, high gloss, strong hiding power, and easy dispersion.
While R218 is a general-purpose pigment widely used in paints, plastics, and inks, it is especially valued when applied as titanium dioxide in paper, where brightness and opacity are critical.
📄 Titanium Dioxide in Paper Industry
In paper-making, titanium dioxide plays a key role in improving brightness, opacity, smoothness, and printability. R218 offers paper manufacturers a reliable pigment solution that balances optical performance with durability.
Applications of R218 in Different Paper Types:
Decorative Paper: Enhances whiteness, smooth finish, and vivid printing effect.
Coated Paper & Art Paper: Provides excellent gloss, opacity, and color retention for high-quality printing.
Cardboard & Packaging Paper: Improves brightness and hiding power, making printed designs more attractive and visible.
Photographic & Specialty Paper: Ensures strong UV resistance and color stability for long-lasting performance.
Copy & Office Paper: Boosts whiteness and readability, making documents look cleaner and sharper.
📊 Technical Data (R218)
| Property | Value |
|---|---|
| TiO₂ Content | ≥94.0% |
| Brightness | ≥96% |
| Rutile Content | High |
| Oil Absorption | ≤21 g/100g |
| Tinting Strength | ≥1800 (Reynolds) |
| pH (aqueous suspension) | 6.5–8.5 |
| Volatile Matter (105°C) | ≤0.5% |
| Water-soluble Matter | ≤0.5% |
| Residue on 45µm Sieve | ≤0.1% |
⭐ Key Benefits of R218 in Paper
Superior Brightness & Whiteness: Ensures sharp contrast for printing and writing.
High Opacity: Enhances coverage, especially in thin papers.
Smooth Printing Surface: Improves ink absorption and prevents uneven printing.
UV & Weather Resistance: Increases durability in decorative and specialty papers.
Versatility: Suitable for decorative laminates, packaging boards, art papers, and more.
📦 Packaging & Storage
Standard Packaging: 25kg compound paper-plastic bags.
Bulk Supply: 500kg / 1000kg jumbo bags available.
Storage: Keep in a dry, ventilated area away from moisture.
👉 If you are looking for titanium dioxide in paper that delivers exceptional whiteness, opacity, and durability, R218 is your reliable solution.
