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High chroma and clean bluish-red shade with excellent color strength.
Outstanding thermal stability suitable for high-temperature polymer processing.
Good lightfastness and weather resistance in demanding outdoor applications.
Excellent dispersibility in both polar and non-polar media, including polyolefins and PVC.
Low migration tendency, ensuring color consistency in food-contact-compliant formulations.
Polyolefin fibers and spunbond nonwovens.
Rigid and flexible PVC profiles, sheets, and cables.
Engineering plastics including ABS and polycarbonate.
Masterbatches for injection molding and extrusion processes.
Automotive interior trim components requiring long-term color retention.
| Chemical Type | Azo pigment (Disazo condensation type) |
| Product Form | Fine powder |
| Appearance | Red to reddish-brown free-flowing powder |
| Primary Applications | Polyolefins, PVC, engineering plastics, masterbatches |
| Key Features | High tinctorial strength, good heat stability up to 280 °C |
| Benefits | Consistent batch-to-batch color, low dust generation, REACH compliant |
| Regulatory Status | EU REACH registered; compliant with FDA 21 CFR §178.3297 for indirect food contact |
| Recommended Processing Temperature Range | 180–260 °C (depending on polymer matrix) |
Q1: What is the primary chemical class of Duasyn Red N-6B?
A: Duasyn Red N-6B is an azo pigment, specifically a disazo condensation pigment, offering high tinctorial strength and balanced performance in demanding industrial applications.
Q2: Is Duasyn Red N-6B suitable for use in food-contact plastics?
A: Duasyn Red N-6B is not approved for direct food-contact applications under major global regulatory frameworks. It is intended for general-purpose industrial plastics, coatings, and inks where regulatory compliance for food contact is not required.
Q3: How does Duasyn Red N-6B perform in polyolefin masterbatches?
A: The pigment demonstrates good thermal stability and dispersion behavior in polyolefin systems, particularly during extrusion at typical processing temperatures. It is commonly used in PP and PE masterbatches at low concentrations to achieve vibrant red shades with acceptable migration resistance.
Q4: What are the recommended dispersion methods for optimal color development?
A: For best results, high-shear dispersion—such as twin-screw extrusion or high-speed dissolver mixing—is recommended. Pre-wetting with compatible carrier resins or surfactants can enhance deagglomeration and improve batch-to-batch consistency.
Q5: Can Duasyn Red N-6B be used in water-based systems?
A: While primarily designed for solvent-based and polymer melt applications, it may be incorporated into aqueous systems using appropriate dispersing agents and stabilization techniques—but performance and stability must be validated case-by-case due to its inherently hydrophobic nature.
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E-mail: wangxingqiang@ericwchem.com
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Building A1, Jiete Industrial Park, Huangpu District, Guangzhou City, Guangdong Province, China
