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High chroma and excellent color strength for vibrant, consistent red shades.
Outstanding thermal stability suitable for high-temperature processing up to 280 °C.
Good lightfastness and weather resistance in demanding outdoor applications.
Low volatility and minimal extractables, supporting compliance with stringent regulatory requirements.
Excellent dispersibility in both polar and non-polar polymer matrices.
Polyolefin masterbatches (PP, PE) for automotive interior components.
Engineering plastics including ABS, PS, and PC for consumer electronics housings.
Food-contact-approved packaging films and containers (subject to local regulatory clearance).
Industrial coatings requiring high-gloss, durable red pigmentation.
Textile printing pastes for synthetic fibers requiring wash-fast coloration.
| Chemical Type | Quinacridone derivative |
| Product Form | Fine powder |
| Appearance | Red-violet free-flowing powder |
| Primary Applications | Plastics, coatings, inks |
| Key Features | Thermally stable, low migration, high tinctorial strength |
| Benefits | Consistent batch-to-batch color performance and processing robustness |
| Regulatory Status | Compliant with EU REACH; meets FDA 21 CFR §178.3297 for indirect food contact (when formulated per guidelines) |
| Storage Conditions | Store in cool, dry place below 30 °C; protect from moisture and direct sunlight |
Q1: What is the primary chemical class and typical application focus of Graphtol GR?
A: Graphtol GR is a high-performance quinacridone-based organic pigment, engineered for demanding graphic arts and industrial ink applications where exceptional lightfastness, thermal stability, and clean red-violet hue are required — especially in gravure, flexographic, and packaging inks.
Q2: Is Graphtol GR suitable for food-contact printing inks?
A: Graphtol GR is designed to meet stringent regulatory expectations for indirect food contact applications when formulated into compliant ink systems. Its use in food packaging inks requires full system evaluation—including binder, additives, and processing conditions—to ensure compliance with applicable regional regulations (e.g., EU Plastics Regulation framework or FDA 21 CFR).
Q3: How does Graphtol GR perform under high-temperature processing conditions?
A: Graphtol GR exhibits excellent thermal stability, maintaining color integrity and dispersion integrity during high-speed ink drying and lamination processes. It is routinely processed at temperatures up to 180 °C without significant degradation or hue shift in properly formulated systems.
Q4: What is the recommended dosage range for optimal color strength and rheology control?
A: Dosage depends on formulation requirements, but Graphtol GR is typically used at low concentrations — generally ranging from 0.1% to 2% by weight in finished ink systems — to achieve strong tinting strength while preserving viscosity and printability.
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E-mail: wangxingqiang@ericwchem.com
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