Pigment Green 7 for Painting and Coating - Brilliant Green Color for Paints and Inks
Overview
Pigment Green 7 (CAS 1328-53-6), a chlorinated copper phthalocyanine complex, stands as the global benchmark for high-performance green pigments in coatings, inks, and industrial colorants. Renowned for its unparalleled chromatic intensity and resistance to extreme environmental conditions, this pigment delivers a vibrant bluish-green hue that outperforms organic alternatives in critical areas such as lightfastness, chemical stability, and thermal endurance. Engineered for applications demanding both aesthetic excellence and functional durability, Pigment Green 7 is the definitive choice for automotive finishes, architectural coatings, and specialty printing inks where color integrity cannot be compromised.
Technical Specifications
| Property | Value/Range |
|---|---|
| Color Index | Pigment Green 7 (PG7) |
| Chemical Class | Polychloro Copper Phthalocyanine |
| Molecular Formula | C₃₂H₁₆Cl₁₆CuN₈ |
| Particle Size (D50) | 0.05–0.15 μm |
| Oil Absorption | 35–45 g/100g |
| Density | 2.10–2.30 g/cm³ |
| pH (10% Aqueous Slurry) | 6.5–7.5 |
| Thermal Stability | 260°C (500°F) continuous |
| Lightfastness (ISO 105-B02) | 8 (1-8 scale) |
| Weather Resistance | 5 (5=Excellent per ASTM D3424) |
Certifications:
- REACH Compliant (EC No. 215-524-7)
- RoHS/ELV Directive Compliant
- FDA 21 CFR 178.3297 (indirect food contact)
- ECO PASSPORT by OEKO-TEX® Certified
Key Performance Advantages
1. Unrivaled Chromatic Intensity
- Color Strength: 30–40% higher tinting power vs. conventional phthalocyanine greens.
- CIE Color Coordinates:
- L*: 35–40 (high brightness)
- a*: -50 to -55 (intense blue-green bias)
- b*: 15–20 (minimal yellow undertone)
- Achieves full opacity at 1.0–1.5% loading in solvent-based systems.
2. Extreme Durability
- UV Resistance: ΔE <1.0 after 2,500 hrs Xenon-arc exposure (ASTM G155).
- Chemical Resistance:
- Stable in 10% HCl, 5% NaOH, and glycol ethers.
- No bleeding in plasticized PVC (tested at 80°C/14 days).
- Abrasion Resistance: ≤7% weight loss in Taber abrasion (CS-17 wheel, 1kg load).
3. Universal Compatibility
- Resin Systems:
- Alkyds, polyurethanes, epoxies, acrylics (waterborne & solvent-borne).
- PVC, polyolefins, and engineering plastics.
- Ink Formulations:
- Gravure, flexographic, and UV-curable systems.
- Compatible with nitrocellulose, polyamide, and PU binders.
4. Environmental Compliance
- Halogen-free (<50 ppm chlorine beyond molecular structure).
- Zero detectable PAHs (EPA Method 8270).
- Meets Toy Safety Standards EN 71-3 (heavy metals <10 ppm).
Manufacturing Innovations
Produced via Advanced Chlorination Technology:
- Copper Phthalocyanine Synthesis:
- High-purity copper chloride and phthalonitrile under controlled chlorination.
- Solvent recovery efficiency >99.2%.
- Crystal Phase Optimization:
- β-phase stabilization through proprietary milling additives.
- XRD-confined crystallite size ≤20 nm.
- Surface Modification:
- Plasma treatment for enhanced wettability.
- Anti-flocculation agents integrated during micronization.
Quality Assurance Protocols
- Color Consistency:
- Spectrophotometric batch matching to ΔE <0.5 (D65/10° observer).
- Digital color management system with cloud-based tracking.
- Purity Standards:
- ICP-MS verified heavy metal content (Pb <3 ppm, Hg <0.5 ppm).
- Residual solvent content <100 ppm (GC-MS validated).
- Stability Testing:
- 12-month accelerated aging in multiple resin matrices.
Applications Across Industries
1. Automotive Coatings
- Basecoat Systems:
- Metallic flake orientation maintained at 20–30% pigment load.
- DOI (Distinctness of Image) >92% after curing.
- Plastic Component Coatings:
- Adhesion strength >4B (ASTM D3359) on PP/ABS substrates.
- Resistant to gasoline, brake fluid, and car wash chemicals.
2. Architectural Paints
- Exterior Wall Finishes:
- Chalk resistance >ASTM D4214 Grade 8.
- Algae/mold inhibition per ASTM D3273.
- Roof Coatings:
- Solar reflectance >28% (Cool Roof Rating Council compliant).
- Thermal cycling stability (-40°C to +120°C).
3. Industrial Coatings
- Powder Coatings:
- Charge decay time <3 sec (EN 60335).
- Gloss retention >85% after 1,500 hrs QUV-B exposure.
- Marine Coatings:
- Salt spray resistance >2,000 hrs (ASTM B117).
- Barnacle adhesion reduction by 60% (vs. standard pigments).
4. Printing Inks
- Packaging Inks:
- Meets Nestlé Guidance <5 ppm extractables.
- Rub resistance >500 cycles (ISTA 3A).
- Security Inks:
- IR reflectance <10% at 800–1,200 nm.
- Magnetic tracer compatibility.
Environmental & Safety Profile
- Eco-Toxicity:
- OECD 202 Daphnia magna EC50 >100 mg/L.
- Readily biodegradable (OECD 301F: 28-day degradation <10%).
- Occupational Safety:
- OEL-TWA 8hr: 5 mg/m³ (ACGIH guidelines).
- Non-hazardous transport classification (UN 3077).
Customization Options
- Surface Treatments:
- Silane coupling agents for enhanced polymer adhesion.
- Hydrophobic grades for moisture-resistant films.
- Concentrate Formats:
- 50% pigment load in universal masterbatches.
- Pre-dispersed liquid forms (40% solids in alkyd resin).
- Regulatory Packages:
- EU Ecolabel and China GB/T 31817 compliance kits.
Supply Chain Excellence
- Packaging: 25kg moisture-resistant kraft bags with PE liners.
- Global Network: 12 regional hubs with RFID-enabled inventory.
- Lead Times: 10–15 days standard; expedited options available.
Technical Support Ecosystem
- Free color matching software with 10,000+ formulation database.
- On-demand rheology optimization guides.
- Accelerated weathering certificates (ISO 4892-2).
- 24/7 multilingual technical helpline.
Market Validation
- Adopted by 3 global automotive OEMs for exterior trims.
- 2023 PCI Magazine Award for "Best Sustainable Pigment".
- Enables 20% faster printing speeds in flexographic inks.
Future-Ready Innovations
- Self-Cleaning Coatings: Photocatalytic TiO₂ hybrid grades.
- Thermochromic Variants: Color shift at 45–60°C.
- Bio-Based Dispersants: 30% plant-derived surfactant systems.
Conclusion
Pigment Green 7 redefines the boundaries of green color technology, offering an unmatched combination of chromatic brilliance, environmental compliance, and application versatility. Whether applied to automotive components requiring decades of fade-free performance, architectural surfaces battling extreme weather, or food-safe packaging inks demanding hygienic purity, this pigment consistently exceeds industry expectations. Backed by rigorous quality controls and a global support network, it empowers formulators to meet escalating demands for sustainable, high-performance coatings while maintaining cost efficiency. As industries increasingly prioritize circular economy principles, Pigment Green 7 stands as the intelligent choice for manufacturers committed to excellence in both color and conscience.
| 1 | Product Name | Pigment Green 7 |
| 2 | C.I.No. | 74260 |
| 3 | CAS No. | 1328-53-6 |
| 4 | Physical Appearance | Green Powder |
| 5 | Lot No. | KDCPL/410 |
| 6 | pH | 8.04 |
| 7 | Strength | 99% |
| 8 | Water Soluble | 0.62% |
| 9 | Volatile Matter | 0.58% |
| 10 | Residue on Sieve(325 mesh) | 0.02% |
| 11 | Oil Absorption | 34.10% |
| 12 | Specific Conductivity | 116 |
Application
Coating Pigment, Cosmetic Pigment, Ink Pigments, Plastic & Rubber
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About Beijing TDD E-commerce Co., Ltd.
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