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High chroma yellow shade with excellent brightness and clean hue.
Outstanding thermal stability suitable for high-speed gravure and flexographic printing processes.
Good dispersibility in common solvent-based and water-based ink systems.
Low migration profile, meeting stringent regulatory requirements for packaging inks.
Consistent batch-to-batch color reproducibility supported by Clariant’s quality control standards.
Food packaging inks (non-direct food contact applications).
Flexible packaging gravure inks for laminates and films.
Label printing inks for pressure-sensitive and wet-glue adhesives.
Publication gravure inks requiring high print fidelity and gloss retention.
Industrial coding and marking inks for pharmaceutical and consumer goods packaging.
| Chemical Type | Azo pigment (disazo) |
| Product Form | Free-flowing powder |
| Appearance | Yellow to orange-yellow powder |
| Primary Applications | Gravure and flexographic packaging inks |
| Key Features | Thermally stable, low-migration, high-opacity |
| Regulatory Compliance | Compliant with EU Directive 2009/142/EC (Framework for inks in food packaging) |
| Recommended Dispersants | Polymers based on acrylic or polyurethane chemistry |
| Storage Conditions | Store in cool, dry place; protect from moisture and direct sunlight |
Q1: What is the primary application field for Hostaprint Yellow HG 34 VP5285?
A: This pigment is specifically developed for high-performance gravure and flexographic printing inks used on packaging substrates, including paper, board, and certain flexible films where excellent transparency, clean hue, and good gloss are required.
Q2: Is Hostaprint Yellow HG 34 VP5285 suitable for food-contact packaging applications?
A: It is designed to meet regulatory expectations for indirect food contact in printing inks, subject to final formulation compliance. Users must verify suitability against applicable regional regulations and perform full system-level migration testing as part of their safety assessment.
Q3: How does this pigment perform in terms of lightfastness and heat stability?
A: Hostaprint Yellow HG 34 VP5285 offers very good lightfastness and thermal stability under typical ink drying and converting conditions, supporting reliable performance in demanding packaging applications such as pasteurized or hot-fill processes.
Q4: What dispersion characteristics can be expected in standard ink vehicles?
A: The pigment exhibits excellent dispersibility in common solvent-based and water-based gravure and flexo ink systems, enabling efficient milling and stable ink rheology without excessive surfactant demand.
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E-mail: wangxingqiang@ericwchem.com
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