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Highly concentrated carbon black masterbatch optimized for polyolefin fiber spinning.
Excellent dispersion stability in molten polymer, minimizing filter clogging and die buildup.
Consistent color strength and batch-to-batch reproducibility for critical black shade requirements.
Low volatile content and minimal odor—suitable for high-speed texturing and heat-setting processes.
Compatible with conventional melt-spinning equipment without requiring process modifications.
Polypropylene (PP) staple fibers for nonwovens and geotextiles.
Polyethylene (PE) monofilaments used in brush bristles and agricultural netting.
PP and PE spunbond and meltblown fabrics for filtration and hygiene applications.
Industrial sewing threads requiring durable, UV-stable black coloration.
| Chemical Type | Carbon Black–Based Polyolefin Masterbatch |
| Product Form | Free-flowing cylindrical pellets |
| Appearance | Uniform black pellets, no dust or agglomerates |
| Carrier Resin | Homopolymer polypropylene (PP) |
| Carbon Black Content | 35 wt% ±1% |
| Melt Flow Rate (MFR, 230°C/2.16 kg) | 25–35 g/10 min |
| Moisture Content | <0.2 wt% |
| Recommended Processing Temperature Range | 200–260°C |
Q1: What is the primary application of DIC SPUNDYE NGS BK-35 Masterbatch?
A: DIC SPUNDYE NGS BK-35 Masterbatch is specifically engineered for black coloring of polypropylene (PP) and polyethylene (PE) fibers, including spunbond, meltblown, and staple fiber applications—commonly used in nonwovens, geotextiles, and filtration media.
Q2: Is this masterbatch suitable for food-contact or medical-grade nonwoven applications?
A: While DIC SPUNDYE NGS BK-35 is formulated with high-purity carbon black and carrier resins compatible with PP/PE processing, it is not pre-certified for food-contact or medical use. Customers must conduct full regulatory validation—including extractables testing and compliance assessment—within their final product configuration and intended application.
Q3: How does NGS BK-35 differ from standard black masterbatches for fiber spinning?
A: NGS BK-35 features a specialized dispersion system optimized for high-speed fiber extrusion, offering superior pigment stability during melt spinning, reduced die buildup, and consistent color homogeneity—even at low add-load levels and elevated throughput rates.
Q4: What is the typical dosage range when using this masterbatch in PP spunbond systems?
A: Dosage depends on the target blackness, fiber denier, and production speed, but it is generally used at low concentrations—typically ranging from 0.1% to 2% by weight—due to its high pigment loading and efficient dispersion performance.
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E-mail: wangxingqiang@ericwchem.com
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