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Product Overview
Phthalocyanine Blue 15 Series are high-performance copper phthalocyanine pigments with strictly controlled crystalline structures, widely recognized for their precise color tone, ultra-high tinting strength, and industry-leading resistance properties.
Basic Core Parameters
CAS No.: 147-14-8
Molecular Formula: C₃₂H₁₆CuN₈
Molecular Weight: 576.07 g/mol
Technical Specification Sheet
Parameter | 15:1 (Stable α-Type) | 15:2 (Anti-Crystallization α-Type) | 15:3 (Standard β-Type) | 15:4 (Anti-Flocculation β-Type) |
C.I. Index | Pigment Blue 15:1 | Pigment Blue 15:2 | Pigment Blue 15:3 | Pigment Blue 15:4 |
Crystal Form | Stabilized α | Modified α | Standard β | Surface-treated β |
Color Tone | Deep reddish blue | Medium reddish blue | Bright greenish blue | Neutral greenish blue |
Tinting Strength (vs Standard) | ≥100% | ≥100% | ≥100% | 98-102% |
325-mesh Residue | ≤200ppm (wet method) | ≤200ppm (wet method) | ≤200ppm (wet method) | ≤150ppm (wet method) |
Moisture Content | ≤1.0% | ≤1.0% | ≤1.0% | ≤0.8% |
Water-Soluble Salts | ≤1.0% | ≤1.0% | ≤1.0% | ≤0.8% |
Average Primary Particle Size | ~100nm | ~90nm | ~123nm | ~85nm |
Specific Surface Area | 50-70 ㎡/g | 55-75 ㎡/g | 30-70 ㎡/g | 60-80 ㎡/g |
Bulk Density | 0.30-0.35 g/ml | 0.28-0.33 g/ml | 0.32 g/ml | 0.27-0.32 g/ml |
pH Value (10% Slurry) | 6.0-9.0 | 6.0-9.0 | 6.0-9.0 | 6.5-7.5 |
Application Fields
Plastics & Masterbatch
Rubber & Elastomer
Inks
Coatings
Technical Performance
Pigment Blue 15:1 (Stable α-Type, Red Shade)
This grade adopts proprietary crystal lattice stabilization technology, which locks the α-form structure permanently without crystal transformation even under long-term heating.
Technical Highlights:
No crystal growth in low-polarity resin systems, no color drift after 72h high-temperature storage at 180°C
7-8 level light fastness, 5-level full rating for acid, alkali, water and solvent resistance
Tinting strength is 3 times higher than Prussian blue, 20 times higher than iron blue
Typical Recommended Dosage: 0.02% for full-shade PVC coloring
Processing Temperature Resistance: 200-240°C
Pigment Blue 15:2 (Anti-Crystallization α-Type)
This grade undergoes secondary surface coating treatment with special dispersing agents, effectively inhibiting crystal ripening in high-boiling aromatic solvent systems.
Technical Highlights:
No crystal enlargement after 48h soaking in xylene at 150°C
No bleeding and no migration in soft PVC products with 30% plasticizer content
8-level weather fastness, 5-level migration resistance
Typical Recommended Dosage: 0.02% for PP/PE injection coloring
Processing Temperature Resistance: 200-260°C
Pigment Blue 15:3 (Standard β-Type, Green Shade)
This grade is produced via acid pasting + salt milling dual pigmentation process, delivering a highly consistent β-type crystal structure and uniform particle size distribution.
Technical Highlights:
Heat resistance up to 260°C, keeps stable for 15 minutes under 260°C extrusion processing
No crystal transformation in non-polar solvents, no color point generation in long-term stored color masterbatches
5-level full rating for acid, alkali, solvent, water and migration resistance
Typical Recommended Dosage: 0.02% for PS/ABS engineering plastic coloring
Processing Temperature Resistance: 200-280°C
Pigment Blue 15:4 (Anti-Flocculation β-Type)
This grade uses advanced low-flocculation surface modification technology, eliminating pigment flocculation in high-viscosity coating and ink systems completely.
Technical Highlights:
No floating color and no blooming when mixed with organic pigments of different densities in coating systems
High gloss development, the 20° gloss of the final coating film can reach over 92
Heat resistance up to 300°C, suitable for high-speed engineering plastic processing
Typical Recommended Dosage: 0.015% for high-end automotive topcoat coloring
Processing Temperature Resistance: 200-300°C
Packaging,Storage and Shelf life
Packaging: 25kg net weight per kraft paper bag / cardboard drum, inner lined with double-layer anti-static polyethylene bag
Storage: Store in a dry, cool and well-ventilated warehouse, the ambient temperature should not exceed 40°C, relative humidity should be kept below 75%. Keep away from direct sunlight, high heat sources and strong oxidizing substances.
Shelf Life: 36 months under proper storage condition
Technical FAQ
Q: What is the core technical difference between 15:1 and 15:2?
A: 15:1 uses lattice stabilization technology to prevent crystal transformation, while 15:2 adds extra surface anti-crystallization coating, performing better in high-temperature solvent systems.
Q: Can you provide technical support for formulation optimization?
A: Yes, our technical team with 20+ years of pigment application experience can provide free formulation guidance according to your specific processing equipment and resin system.
Q: Is it possible to get a customized grade with specific color shade?
A: We can adjust the surface treatment process and particle size distribution, to develop a custom pigment grade that matches your exact color standard.