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High chroma yellow shade with excellent lightfastness for durable color performance.
Optimized dispersibility in solvent-based and UV-curable printing inks.
Good thermal stability suitable for high-speed rotary and flexographic printing processes.
Low migration profile, meeting stringent regulatory requirements for packaging applications.
Consistent batch-to-batch color reproducibility supported by Clariant’s rigorous quality control.
Flexible packaging inks for food and non-food laminates.
Publication gravure inks for high-gloss magazine and catalog printing.
UV-curable digital inks for narrow-web label production.
Solvent-based flexographic inks for corrugated and folding carton printing.
Overprint varnishes requiring transparent yellow tinting with minimal haze.
| Chemical Type | Azo pigment (disazo) |
| Product Form | Free-flowing powder |
| Appearance | Bright yellow powder |
| Primary Applications | Printing inks (gravure, flexo, UV-digital) |
| Key Features | High transparency, good gloss development, low viscosity impact |
| Benefits | Enhanced print definition, efficient ink formulation, reduced press downtime |
| Regulatory Compliance | EU REACH registered; compliant with ISO 8124-3 for toy safety (migration limits) |
| Storage Conditions | Store in cool, dry place below 30°C; protect from moisture and direct sunlight |
Q1: What is the primary application area for Hostaprint Yellow H4G 32?
A: Hostaprint Yellow H4G 32 is specifically developed for high-performance gravure and flexographic printing inks used on packaging substrates, including paper, board, and certain flexible films where excellent lightfastness and gloss retention are required.
Q2: Is this pigment suitable for food-contact packaging applications?
A: Hostaprint Yellow H4G 32 is designed to meet stringent regulatory expectations for packaging inks. It complies with major global food-contact guidelines when formulated and processed according to Clariant’s recommended good manufacturing practices and end-use conditions — however, final compliance depends on the complete ink formulation and intended migration scenario.
Q3: How does Hostaprint Yellow H4G 32 compare to standard diarylide yellows in terms of heat stability?
A: This pigment offers significantly improved thermal stability compared to conventional diarylide yellow pigments, enabling reliable performance during high-speed drying, lamination, or post-printing processes such as hot foil stamping — without noticeable hue shift or decomposition under typical industrial conditions.
Q4: What dispersion characteristics should be expected in solvent-based ink systems?
A: Hostaprint Yellow H4G 32 exhibits excellent dispersibility in common aromatic and aliphatic solvent systems used in packaging inks. It achieves fine particle distribution and stable rheology with standard dispersing aids, supporting high-gloss finishes and consistent print density across extended press runs.
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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
