Titanium Dioxide NTR-750 High Purity for Coating Applications

‌Product Overview‌

Titanium Dioxide NTR-750 represents the pinnacle of sulfate-process rutile technology, engineered to deliver unparalleled brightness with a distinct blue undertone. Designed for industries requiring superior optical performance and process stability, this pigment combines 94% minimum TiO₂ purity with advanced surface characteristics. Its unique balance of low oil absorption (20 g/100g) and exceptional Reynolds Index (1,900) makes it the ideal choice for formulations demanding maximum opacity with minimal viscosity impact. Certified for use in coatings, plastics, specialty papers, and food-contact packaging, NTR-750 sets new benchmarks in whiteness (CIE L* 98.5) and weather resistance (ASTM D476 Class 2, 3, 4 compliance).

‌Technical Specifications‌

‌Core Properties‌

‌Optical Performance‌

• ‌CIE Color Coordinates‌:
  • L*: 98.5 (Ultra-brightness)
  • b*: 2.0 (Neutral blue undertone)
• ‌Hiding Power‌: 1,900 Reynolds Index (30% superior to standard rutile grades)
• ‌Tinting Strength‌: 1,800% vs. zinc oxide baseline

‌Environmental Compliance‌

• Heavy Metals (Pb, As, Hg, Cr⁶⁺): <10 ppm (ICP-MS verified)
• PBB/PBDE-Free: Full REACH Annex XVII compliance
• Halogen Content: <50 ppm (EN 14582)

‌Manufacturing Excellence‌

NTR-750 is produced through a ‌closed-loop sulfate process‌ with zero liquid discharge:

1. ‌Ilmenite Digestion‌: High-purity feedstock leaching at 180–200°C
2. ‌Hydrolysis Control‌: Precise pH/temperature gradients for 0.2–0.4 μm crystal growth
3. ‌Surface Optimization‌:
   • Zirconium-alumina dual coating (0.5–1.2% loading)
   • Organic siloxane treatment for polymer compatibility
4. ‌Energy Recovery‌: 85% waste heat recapture via cogeneration

‌Key Process Advantages‌:

• 99.7% sulfuric acid recycling rate
• ±0.05 μm particle size consistency
• 50% lower chloride residuals vs. chloride-process pigments

‌Multi-Industry Applications‌

‌1. Coatings & Paints‌

• ‌Architectural Finishes‌:
  • Maintains ΔE <1.5 after 2,000 hrs QUV-B exposure
  • Achieves 90° gloss >95 GU at 18% PVC
• ‌Automotive OEM‌:
  • Enables 1.2–1.5 mil dry film thickness for full coverage
  • Compatible with waterborne 2K polyurethane systems

‌2. Plastics Engineering‌

• ‌Injection-Molded Parts‌:
  • 50% reduction in pigment loading vs. anatase grades
  • Eliminates warpage in PP/PE composites
• ‌Masterbatches‌:
  • 99.5% dispersion homogeneity at 60% TiO₂ concentration
  • Passes UL 94 V-0 flame retardancy tests

‌3. Specialty Paper‌

• ‌Label Stocks‌:
  • 98% brightness with 0.005% fluorescent whitening agents
  • Meets ISO 2470-2 opacity requirements at 8 g/m² coating
• ‌Food Packaging‌:
  • Compliant with FDA 21 CFR 175.300/EC 1935-2004
  • Zero photocatalytic activity under UV light

‌4. Printing Inks‌

• ‌Gravure Systems‌:
  • Achieves 1.6 optical density with 22% pigment volume
  • Reduces dot gain by 15–20% in process colors
• ‌Security Inks‌:
  • Enhances IR reflectivity for machine-readable features
  • Resists solvent attack in alcohol-based formulations

‌Competitive Differentiation‌

‌Performance Leadership‌

• 25% higher UV absorption (300–400 nm) vs. standard rutile grades
• 40% faster dispersion in high-shear mixers (Hegman 7.5+ grind)
• 18-month shelf stability in humid environments (≤0.8% moisture uptake)

‌Economic Value‌

• Reduces TiO₂ consumption by 15–20% through optimized scattering efficiency
• Cuts energy costs with 30°C lower extrusion temperatures in plastics
• Eliminates dispersant additives in water-based systems

‌Technical Superiority‌

• Zero hard agglomerates (325 mesh residue <0.01%)
• Ionic contamination <50 ppm for electronics-grade applications
• Full compliance with China GB 9685-2016 food safety standards

‌Quality Assurance‌

• ‌Batch Traceability‌: Blockchain-enabled QR coding system
• ‌Certifications‌:
  • ISO 9001:2015 Quality Management
  • ISO 14001 Environmental Management
  • OHSAS 45001 Workplace Safety
• ‌Performance Testing‌:
  • ASTM D658 (Abrasion Resistance)
  • ISO 2812-2 (Chemical Resistance)
  • DIN 53230 (Dispersibility)

‌Sustainable Manufacturing‌

• ‌Carbon Footprint‌: 2.8 ton CO₂/ton product (40% below industry average)
• ‌Water Stewardship‌: 100% process water recycling
• ‌Circular Economy‌: Recyclable packaging with 25% post-industrial content
• ‌Emission Control‌: 99.95% PM2.5 capture via electrostatic precipitators

‌Packaging & Logistics‌

• ‌Standard Options‌:
  • 25 kg multi-layer paper/PE composite bags
  • 50 kg UV-resistant woven PP sacks
• ‌Custom Solutions‌:
  • 1-ton bulk bags with moisture-proof liners
  • Automated dosing systems for JIT production
• ‌Global Supply‌:
  • Spot purchases with 72-hour regional delivery
  • Annual contracts with price hedging options
  • HS Code 3206.11.00 compliant documentation

Titanium Dioxide NTR-750 redefines industrial pigment performance, combining optical excellence with sustainable manufacturing credentials. Our technical team provides application-specific support, including lab-scale formulation trials, accelerated weathering tests, and regulatory compliance guidance to ensure seamless integration into your production processes.

 

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