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High chroma yellow shade with excellent lightfastness and weather resistance.
Optimized for solvent-based gravure and flexographic printing inks.
Good dispersibility in standard organic solvent systems without requiring extended milling.
Consistent batch-to-batch color performance meeting stringent OEM ink specifications.
Low volatile organic compound (VOC) contribution, supporting sustainable ink formulation goals.
Flexible packaging inks for food and non-food laminates.
Label printing inks on paper and film substrates.
Publication gravure inks for high-speed web printing.
Industrial coding and marking inks requiring durable yellow hue.
Security and specialty inks where consistent hue and thermal stability are critical.
| Chemical Type | Azo pigment (disazo) |
| Product Form | Free-flowing powder |
| Appearance | Yellow to orange-yellow powder |
| Primary Applications | Solvent-based gravure and flexo inks |
| Key Features | High transparency, good gloss development, low bleed |
| Benefits | Enhanced print definition, substrate adhesion, and overprint compatibility |
| Storage Conditions | Store in dry, cool, well-ventilated area; avoid direct sunlight |
| Regulatory Compliance | REACH registered; compliant with EU Directive 2009/48/EC (Toy Safety) for migration limits |
Q1: What is the primary application field for Hostaprint Yellow H2R 34 VP5308?
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 requiring excellent lightfastness and heat stability during processing.
Q2: Is Hostaprint Yellow H2R 34 VP5308 suitable for food-contact packaging applications?
A: Yes — it is formulated to meet stringent regulatory expectations for indirect food contact in packaging inks, subject to compliance with applicable regional requirements and proper ink formulation practices. End-use approval remains the responsibility of the ink manufacturer and converter.
Q3: How does this pigment perform under thermal stress during printing or post-printing processes?
A: Hostaprint Yellow H2R 34 VP5308 exhibits good thermal stability, supporting reliable performance in high-speed gravure printing and common post-printing operations such as lamination and drying at elevated temperatures without significant hue shift or degradation.
Q4: What dispersion characteristics can be expected in standard solvent-based and water-based ink systems?
A: The pigment demonstrates good dispersibility in both conventional solvent-based and modern water-based ink vehicles, enabling efficient stabilization with common polymeric dispersants. Optimal dispersion typically requires high-shear mixing or bead milling, depending on the vehicle polarity and viscosity.
Q5: What is the typical dosage range when formulating printing inks with this pigment?
A: Dosage depends on the required color strength, substrate, and print process, but it is generally used at low concentrations — typically ranging from 0.1% to 2% by weight in the finished ink — to achieve strong yellow hues with excellent opacity and gloss retention.
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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
