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High chroma and clean greenish-yellow shade with excellent batch-to-batch color consistency.
Good lightfastness (ISO 105-B02: Grade 5–6) and weather resistance in non-critical outdoor applications.
Excellent dispersibility in polar and non-polar media, enabling efficient ink and coating formulation.
Low volatility and negligible migration in PVC, PS, and ABS plastic systems.
Compliant with major global regulatory frameworks including EU REACH and US FDA 21 CFR §178.3297 for certain food-contact plastics (subject to final formulation approval).
General-purpose solvent-based and water-based gravure and flexographic printing inks.
Polyvinyl chloride (PVC) compounds for profiles, flooring, and cable sheathing.
Polystyrene (PS) and acrylonitrile-butadiene-styrene (ABS) injection-molded consumer goods.
Industrial coatings for metal and wood substrates requiring vibrant yellow tones.
Masterbatches for polyolefins (PP, PE) where moderate thermal stability is sufficient.
| Chemical Type | Azo pigment (C.I. Pigment Yellow 1) |
| Product Form | Free-flowing powder |
| Appearance | Bright greenish-yellow powder |
| Primary Applications | Plastics, printing inks, industrial coatings |
| Key Features | High tinctorial strength, good heat stability up to 180 °C (short-term), low dusting |
| Benefits | Efficient coloration, ease of dispersion, regulatory compliance support |
| Typical Particle Size (D50) | 0.08–0.12 µm |
| Heat Stability | Stable up to 180 °C (30 min, air atmosphere) |
Q1: What is the primary chemical class and typical application field for Hansa Brilliant Yellow 5GX?
A: Hansa Brilliant Yellow 5GX is an organic monoazo pigment, widely used in industrial coatings, printing inks, and plastics where high tinting strength, good lightfastness, and clean yellow hue are required.
Q2: Is this pigment suitable for food-contact applications?
A: Hansa Brilliant Yellow 5GX is not approved for direct food-contact applications under major global regulatory frameworks. It is intended for general industrial use; consult Clariant’s regulatory documentation and local compliance experts before considering any food-related formulation.
Q3: How does this pigment perform in heat-sensitive polymer systems?
A: As a conventional monoazo pigment, Hansa Brilliant Yellow 5GX exhibits moderate thermal stability—suitable for low-to-medium processing temperatures (e.g., PVC, PS, or water-based inks), but may undergo degradation above approximately 180–200 °C. For high-heat polymers like polyesters or engineering resins, alternative high-stability pigments are recommended.
Q4: What is the typical dosage range when incorporating this pigment into solvent-based industrial coatings?
A: Dosage depends on the desired shade intensity and opacity requirements, but it is generally used at low concentrations—typically ranging from 0.1% to 2% by weight relative to the total formulation—due to its high tinctorial strength and good dispersion characteristics.
Q5: Can Hansa Brilliant Yellow 5GX be dispersed effectively in aqueous systems without specialized surfactants?
A: While inherently hydrophobic, Hansa Brilliant Yellow 5GX can achieve stable aqueous dispersions using appropriate dispersing agents and high-shear milling. Performance varies significantly with formulation design; pre-dispersed versions or tailored surfactant packages are often recommended for consistent results in water-based inks and coatings.
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