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High tinctorial strength with excellent color saturation in organic solvent and water-based systems.
Good lightfastness and thermal stability suitable for medium-duty industrial applications.
Low volatility and non-volatile organic compound (VOC)-compliant formulation.
Excellent dispersibility in common polymer matrices including PVC, PS, and ABS.
Consistent batch-to-batch color reproducibility meeting ISO 9001 manufacturing standards.
Plastic coloring for rigid and semi-rigid PVC profiles and extrusions.
Coloration of polystyrene (PS) packaging and consumer goods.
Ink formulations for flexible packaging gravure and offset printing.
Masterbatch production for polyolefin fibers and injection-molded parts.
Coating systems requiring cost-effective, bright red hue with good weathering resistance.
| Chemical Type | Azo pigment (monoazo) |
| Product Form | Free-flowing powder |
| Appearance | Red to reddish-orange powder |
| Primary Applications | Plastics, inks, coatings, masterbatches |
| Key Features | Good dispersibility, high brightness, low migration |
| Benefits | Cost-efficient coloration, stable processing behavior, regulatory compliance (REACH, RoHS) |
| Storage Conditions | Store in cool, dry place; protect from moisture and direct sunlight |
| Regulatory Status | Compliant with EU Directive 2002/72/EC for food-contact plastics (subject to specific migration limits) |
Q1: What is the primary chemical class of Hansa Red R pigment?
A: Hansa Red R is an organic monoazo pigment based on a substituted arylide chemistry, offering balanced hue strength, lightfastness, and dispersibility in common polymer and coating systems.
Q2: Is Hansa Red R suitable for food-contact applications?
A: Hansa Red R is not approved for direct food-contact applications under major global regulatory frameworks. It may be used in non-food-contact layers of packaging or in industrial coatings where migration risk is controlled and compliance with end-use regulations is verified by the formulator.
Q3: How does Hansa Red R perform in polyolefin applications?
A: Hansa Red R demonstrates good thermal stability and dispersion behavior in polyolefins such as PP and HDPE at typical processing temperatures. It is commonly used in injection-molded and blow-molded parts where moderate lightfastness and cost-effective red shading are required.
Q4: What types of solvents or resins is Hansa Red R compatible with?
A: Hansa Red R exhibits broad compatibility with common thermoplastic resins (e.g., PVC, ABS, PS) and solvent-based systems including alkyds, acrylics, and nitrocellulose lacquers. Its performance in water-based dispersions depends on proper surfactant-assisted stabilization and pH control.
Q5: What is the recommended dosage range for optimal color development?
A: Dosage depends on formulation requirements and desired opacity or transparency, but it is typically used at low concentrations—generally ranging from 0.1% to 2% by weight in polymer masterbatches or liquid coatings.
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E-mail: wangxingqiang@ericwchem.com
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