High chroma and excellent color strength for vibrant, consistent shades.
Outstanding thermal stability suitable for high-temperature processing up to 280 °C.
Good lightfastness and weather resistance in demanding outdoor applications.
Excellent dispersibility in both polar and non-polar polymer matrices.
Low volatility and minimal extractables—compliant with stringent food-contact and toy safety requirements.
Polyolefin masterbatches (PP, PE) for automotive interior components.
Engineering plastics including ABS, PS, and PC for consumer electronics housings.
Flexible and rigid PVC compounds used in building & construction profiles.
Thermoplastic elastomers (TPE) for medical device casings and wearable products.
Polycarbonate-based optical films requiring high clarity and color purity.
| Chemical Type | Condensed Azo Pigment |
| Product Form | Fine powder |
| Appearance | Reddish-brown free-flowing powder |
| Primary Applications | Plastics coloring (especially polyolefins and engineering thermoplastics) |
| Key Features | High heat stability, low migration, excellent dispersion |
| Benefits | Color consistency in extrusion and injection molding; reduced filter clogging |
| Regulatory Compliance | EU REACH registered; compliant with ISO 8124-3 for toys |
| Storage Conditions | Store in cool, dry place below 30 °C; protect from moisture and direct sunlight |
Q1: What is the primary application field for Graphtol LC pigments?
A: Graphtol LC organic pigments are specially engineered for high-performance liquid inks—particularly gravure and flexographic inks—where excellent dispersion stability, gloss, and color strength are required. They are also used in select coating systems demanding strong chroma and good lightfastness.
Q2: How does Graphtol LC differ from standard Graphtol pigment grades?
A: The "LC" designation indicates a liquid concentrate form—pre-dispersed in compatible solvent or resin vehicles—which offers improved handling, reduced dusting risk, faster incorporation, and more consistent color development compared to dry powder grades. It eliminates the need for on-site dispersion equipment in many ink manufacturing processes.
Q3: Is Graphtol LC suitable for food packaging inks?
A: Graphtol LC grades are designed with regulatory compliance in mind for indirect food contact applications. Their suitability depends on the specific formulation—including co-pigments, resins, and solvents—as well as regional regulatory requirements. Users must validate final ink compliance through full system testing and documentation review.
Q4: What are the recommended storage conditions for Graphtol LC concentrates?
A: Store in tightly sealed original containers at temperatures between 10 °C and 30 °C, away from direct sunlight and sources of heat or freezing. Prolonged exposure to extreme temperatures or humidity may affect viscosity and dispersion stability over time.
Q5: Can Graphtol LC be mixed with other pigment types or dispersions?
A: Compatibility with other pigments or dispersions must be evaluated case-by-case. While Graphtol LC is formulated for broad compatibility within standard ink systems, interactions—especially with inorganic pigments or highly polar dispersants—can affect rheology, stability, or color consistency. We recommend conducting small-scale compatibility and stability trials before full-scale blending.
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E-mail: wangxingqiang@ericwchem.com
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