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Highly stable granular form ensures excellent flowability and dust-free handling in high-speed compounding lines.
Outstanding thermal stability up to 260 °C enables reliable processing in engineering thermoplastics.
Excellent lightfastness and weather resistance for durable color performance in outdoor applications.
Optimized particle size distribution provides uniform dispersion and consistent color strength in polyolefins and PVC.
Non-migrating formulation ensures superior bleed resistance in multi-layer and food-contact compliant compounds.
Polypropylene (PP) and polyethylene (PE) injection-molded consumer goods.
Extruded profiles and pipes for building & construction.
Automotive interior components requiring long-term color stability.
Flexible and rigid PVC applications including flooring, cables, and medical tubing.
Masterbatch production for high-performance polymer coloration.
| Chemical Type | Anthraquinone-based organic pigment |
| Product Form | Free-flowing granules |
| Appearance | Granular, blue-violet shade |
| Primary Applications | Polyolefins, PVC, engineering plastics |
| Key Features | Dust-free, thermally stable, non-migrating |
| Benefits | Consistent dosing, low wear on equipment, compliance with food-contact regulations (EU 10/2011, FDA 21 CFR) |
| Typical Bulk Density | 450–550 g/L |
| Recommended Processing Temperature Range | 180–260 °C |
Q1: What is the primary application field for Sanodye Blue 2LW gran pigment?
A: Sanodye Blue 2LW gran is specifically developed for coloring polyolefins—especially PP and PE—in injection molding, blow molding, and extrusion applications. Its granular form ensures excellent dosing accuracy and dispersion stability in high-throughput industrial processes.
Q2: How does the granular format benefit processing compared to powder pigments?
A: The free-flowing granules minimize dust generation, improve handling safety, and reduce segregation during storage and feeding. They also enhance melt compatibility and dispersion uniformity in thermoplastic compounds, especially at elevated processing temperatures typical for polyolefins.
Q3: Is this pigment suitable for food-contact applications?
A: Sanodye Blue 2LW gran is designed for use in polymers intended for indirect food contact, subject to compliance with applicable regional regulations. Final regulatory suitability depends on the full formulation, processing conditions, and end-use requirements—validation by the compounder or converter is recommended.
Q4: What is the typical dosage range when using this pigment in polypropylene?
A: Dosage generally ranges from 0.1% to 2% by weight, depending on the desired shade intensity, base polymer properties, and processing method. It is typically used at low concentrations due to its high tinctorial strength and consistent batch-to-batch performance.
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E-mail: wangxingqiang@ericwchem.com
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