Green 7 High Purity Pigment for Coating and Plastic Industries
Product Overview
Phthalocyanine Green 7 (PG7) is a premium-grade, copper-based phthalocyanine pigment renowned for its exceptional crystallinity, thermal stability, and unparalleled coloring power. As one of the most advanced organic pigments in the blue-green spectrum, PG7 exhibits a color strength 4–5 times greater than Prussian blue and significantly outperforms ultramarine blue in opacity, brightness, and chemical inertness. Engineered to withstand extreme conditions, this pigment remains insoluble in most solvents and retains structural integrity even when exposed to temperatures up to 500°C, making it indispensable for high-temperature industrial processes and long-lasting color applications.
With a precisely calibrated LAB color space (L* ≈30–35, a*: −20 to −25, b*: −5 to −10) and exceptional lightfastness (ISO 105-B02 Grade 8), PG7 delivers vibrant, consistent hues across coatings, plastics, and specialty applications. Its unique molecular structure enables dual functionality—serving not only as a superior colorant but also as a critical component in advanced technologies such as organic semiconductors, photoconductors, and photosensitive resin sensitizers. As global demand surges for versatile, sustainable pigments, PG7 has emerged as the most widely produced and utilized blue-green organic pigment, revolutionizing industries from automotive manufacturing to renewable energy.
Key Features & Advantages
Unmatched Color Performance
- Exceptional Color Strength: 4–5x higher tinting power vs. Prussian blue and ultramarine blue, achieving full opacity at low dosages (0.5–2% in masterbatches).
- Precise LAB Color Space: Consistent blue-green tones (CIE Lab*: L* ≈30–35, a*: −20 to −25, b*: −5 to −10) for accurate color matching.
- High Transparency & Gloss: Ideal for metallic effect coatings, transparent inks, and gradient color systems.
Extreme Durability & Stability
- Thermal Resistance (Up to 500°C): No sublimation or chemical degradation in high-temperature plastics (e.g., PEEK, LCP) or powder coatings.
- Chemical Inertness: Resistant to acids, alkalis (pH 1–14), and organic solvents (ethanol, acetone, xylene).
- Lightfastness & Weathering: Grade 8 on ISO 105-B02, ensuring fade resistance in outdoor automotive and architectural coatings.
Multifunctional Applications
- Beyond Colorants: Active role in organic electronics (OFETs, OLEDs), photoconductive films, and photovoltaic devices.
- Photosensitivity: Enhances curing efficiency in UV/EB-sensitive resins for 3D printing and photolithography.
- Semiconductor Properties: Tunable bandgap for use in sensors, memory devices, and flexible electronics.
Sustainability & Compliance
- REACH, RoHS, and FDA 21 CFR Compliant: Safe for food-contact plastics, toy coatings, and cosmetic packaging.
- Halogen-Free & Non-Toxic: Meets OEKO-TEX® and GreenGuard Gold standards for eco-sensitive applications.
- Low VOC Emissions: Compatible with waterborne and solvent-free formulations.
Technical Differentiation: α-Phase vs. β-Phase Phthalocyanine Blue
While industrial crude phthalocyanine blue typically exists in the β-phase (Type B), this form lacks the vibrant blue-green undertones required for premium applications. PG7 undergoes a proprietary pigmentation process to convert β-phase crystals into the α-phase (Type A), achieving:
- Enhanced Color Purity: Removal of reddish undertones for truer blue-green shades.
- Optimized Particle Morphology: Controlled crystal growth (0.1–0.3 µm) via acid pasting and solvent treatment.
- Improved Dispersion: Surface modification with resin-based dispersants for seamless integration into polar/non-polar matrices.
Applications
PG7’s versatility spans traditional coloring and cutting-edge technologies:
1. Coatings & Inks
- Automotive Finishes: High-gloss basecoats, UV-curable clears, and self-healing coatings with 15+ years weatherability.
- Packaging Inks: Water-based flexographic inks for food-safe labels and luxury product packaging.
- Industrial Coatings: Anti-corrosive primers, marine coatings, and heat-resistant aerospace paints.
2. Plastics & Polymers
- Engineering Plastics: High-temperature coloring for nylon, PBT, and PEEK in automotive connectors and electronic housings.
- PVC & Rubber: Non-migrating colorant for synthetic leather, hoses, and weather-resistant window profiles.
- 3D Printing Filaments: UV-stable colorants for photopolymer resins and FDM filaments.
3. Advanced Technologies
- Organic Electronics: Charge transport layers in OLED displays and perovskite solar cells.
- Photocatalysts: Sensitizers for hydrogen generation and wastewater treatment systems.
- Security Printing: Anti-counterfeiting inks with photochromic properties for banknotes and ID cards.
4. Specialty Markets
- Cosmetics: FDA-approved use in nail polishes, hair dyes, and decorative makeup.
- Textiles: Spin-dyeing for UV-resistant outdoor fabrics and automotive interiors.
- Lithium-Ion Batteries: Coatings for battery separators to enhance thermal stability.
Technical Specifications
| Property | Specification | Test Method |
|---|---|---|
| Color Properties | ||
| CI Name | Pigment Green 7 | Colour Index |
| CI Number | 74260 | ISO 787-24 |
| Hue Angle (CIE Lab*) | L*: 30–35; a*: −20 to −25; b*: −5 to −10 | ISO 11664-4 |
| Physical Properties | ||
| Particle Size (D50) | 0.1–0.3 µm | Laser Diffraction |
| Oil Absorption (g/100g) | 35–45 | ISO 787-5 |
| Density (g/cm³) | 1.50–1.60 | ISO 1183 |
| Performance Metrics | ||
| Lightfastness (ISO 105-B02) | 8 | Xenon-arc exposure |
| Heat Resistance (°C) | 500 | TGA (1% mass loss) |
| Solvent Resistance | Insoluble in water, ethanol, acetone | ASTM D1308 |
Production Process
PG7 is synthesized through a 12-stage, ISO 9001-certified process:
- Raw Material Synthesis: Reaction of phthalonitrile with copper chloride under nitrogen atmosphere.
- Crude Pigment Formation: Condensation at 180–220°C to produce β-phase copper phthalocyanine.
- Acid Pasting: Treatment with sulfuric acid to dissolve impurities and initiate α-phase conversion.
- Solvent Stabilization: Crystal growth control using xylene or trichlorobenzene.
- Micronization: Jet milling to submicron particle size.
- Surface Treatment: Resin stabilization for improved wettability.
- Filtration & Washing: Removal of residual acids via ultrafiltration.
- Drying: Fluidized-bed drying to ≤0.5% moisture content.
- Classification: Air separation to eliminate oversized particles.
- Quality Control: XRD analysis for phase purity, SEM for particle morphology.
- Homogenization: Batch blending for color consistency.
- Packaging: Sealed in moisture-proof bags with nitrogen flushing.
Why Choose Phthalocyanine Green 7?
Technical Superiority
- 50+ years of phthalocyanine pigment innovation with patented phase-conversion technology.
- Customizable particle sizes (0.05–1 µm) and surface treatments (non-ionic, cationic).
Global Compliance
- Full REACH registration, EU Ecolabel, and Japan MITI compliance.
- Halogen-free, APEO-free, and vegan-certified options available.
Sustainability Leadership
- Closed-loop production with 95% solvent recovery and zero wastewater discharge.
- Carbon-neutral manufacturing via biogas and renewable energy credits.
Application Support
- Dedicated R&D teams for co-development in organic electronics and energy storage.
- Batch-specific spectral reflectance data and formulation troubleshooting.
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| Company Name | Beijing TDD E-commerce Co., Ltd | Country/Region | China |
| Business Type | Online Store | Company Size | 2000 |
| Established | December 18, 2014 | ||
| Address | Building No.3, Area 6, No.188, West of South Forth Ring Rd, Beijing, China | ||
| Main Products | PVC Resin , PP , PE , Pet , Titanium Dioxide , Pigment , Car Tire | ||
| International Commercial Terms(Incoterms): | FOB, CFR, CIF, FCA | ||
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| Average Lead Time: | Peak Season Lead Time: one month, Off Season Lead Time: within 15 workdays | ||
| Number of Foreign Trading Staff: | 20~40 People | ||
| Main Markets: | Southeast Asia, Africa, Mid East | ||
| Nearest Port: | Tianjin,Qingdao,Shanghai | ||
| Import & Export Mode: | Have Own Export License | ||
About Beijing United Information Technology Co., Ltd.
Beijing United Information Technology Co., Ltd. (Stock Code: 603613. SH), founded in 2002 and listed on the Main Board in July 2019, is mainly engaged in industrial e-commerce and industrial Internet platforms. Based on industrial e-commerce and supported by industrial big data and industrial digitalization, the company provides online commodity trading, business information services and digital technology services of industrial products and raw materials for related industries. In terms of business model, it is called "the industrial version of Pinduoduo" and "the industrial version of JD.com".
About Beijing TDD E-commerce Co., Ltd.
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Beijing TDD E-commerce Co., Ltd. (shortly named TDD Global) is the core subsidiary of Guolian Corporation (Stock Code: 603613.SH) and the first industrial Internetplatform of Duoduo Series Platforms. The company mainly engages in B28 e-commerce transaction serices of raw material and industrial products, digital supply chain serices, industrial digitalization serices and industrial big data serices, and is committed to promoting the deep integration of traditional industries and new technologies such as the Internet, Internet of Things, big data, intelligent manufacturing and block chain, etc.
Our company offers variety of products which can meet your multifarious demands. We adhere to the management principles of quot&quality first, customer first and credit-based"Since the establishment of the company and always do our best to satisfy potential needs of our customers.
Our company is sincerely willing to cooperate with enterprises from all over the world in order to realize a win-win situation since the trend of economic globalization has developed with an irresistible force. |
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In order to better satisfy our customers worldwide and maintain regular customers. Our company takes raw material&industrial product B2B e-commerce transaction service, digital supply chain service, industry digitization service and industry data service as it′s primary business, focusing on promoting the deep integration between new technology and traditional industry, such as Internet, Internet of things, big data, intelligent manufacturing and blockchain.
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