|
HS Code |
357717 |
| Chemical Composition | Carbon |
| Appearance | Fine black powder |
| Color Index Number | C.I. Pigment Black 7 |
| Particle Size | 10-100 nm (varies by grade) |
| Density | 1.7-1.9 g/cm³ |
| Oil Absorption | 30-120 g/100g |
| Specific Surface Area | 20-1500 m²/g |
| Melting Point | Sublimes at 3915 °C |
| Solubility | Insoluble in water and organic solvents |
| Electrical Conductivity | High |
| Lightfastness | Excellent |
| Thermal Stability | High |
| Toxicity | Generally considered non-toxic |
| Cas Number | 1333-86-4 |
As an accredited Pigment Carbon factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | The Pigment Carbon is packaged in a 25 kg industrial-grade, double-layer kraft paper bag with clear labeling and safety instructions. |
| Container Loading (20′ FCL) | Container Loading (20′ FCL) for Pigment Carbon: Typically loaded with 10-12 metric tons, securely packed in bags or drums on pallets. |
| Shipping | Pigment Carbon should be shipped in tightly sealed, appropriately labeled containers to prevent leakage and contamination. Store and transport in a cool, dry, well-ventilated area, away from incompatible substances. Comply with all relevant local, national, and international regulations regarding transportation of chemicals. Handle with proper personal protective equipment to ensure safety. |
| Storage | Pigment Carbon should be stored in a cool, dry, well-ventilated area away from direct sunlight, ignition sources, and incompatible materials such as strong oxidizers. Keep containers tightly closed when not in use to prevent moisture absorption and contamination. Use non-sparking tools and explosion-proof equipment if handling large amounts. Store away from food and drink to avoid accidental ingestion or contamination. |
| Shelf Life | Pigment Carbon typically has a shelf life of 5 years when stored in a cool, dry, and tightly sealed container. |
Competitive Pigment Carbon prices that fit your budget—flexible terms and customized quotes for every order.
For samples, pricing, or more information, please call us at +8615365186327 or mail to sales3@liwei-chem.com.
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Tel: +8615365186327
Email: sales3@liwei-chem.com
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Pigment carbon goes through a lot before it reaches a customer. The process starts with raw carbon-rich materials. In our experience, the final pigment’s performance always reflects the quality and consistency of the source. One batch of feedstock can be the turning point for dispersion, jetness, and application stability. On the shop floor, we see the difference between a well-controlled furnace process and shortcuts right away—fewer filtration issues, steadier particle size, and real confidence that the color won’t shift from bag to bag. Clean input equals clean output.
We rely on a few main types and models. Each has its place, depending on where a pigment ends up. The pigment carbon under our L-series, for example, nails high color strength for demanding coatings and plastics. Customers making deep automotive finishes often lean on this grade. The M-series offers softer undertones and slightly larger particle size, which works well in construction materials like cement and mortar. Our F-series serves the printing ink field, where high dispersion, purity, and cost efficiency keep the brand competitive. We test these regularly for tinting strength, residue, and flow properties—a decade of small tweaks helps keep each line predictable and trustworthy.
In pigment carbon, figures like BET surface area and DBP absorption draw a line in sand between a product worth mixing and a headache for plant engineers. An electric cable jacketing application cannot tolerate weak dispersion. Even a slight wobble in primary particle size can show up as rolls blacken and fillers jam. Our batches with narrow size distribution, measuring between 15-25 nm for high jetness, rarely cause those headaches. If a customer needs a high tinting product for decorative laminates, a surface area above 90 m²/g speaks for itself. These numbers are not just statistical padding—they mean time saved on dispersion, less wear on milling equipment, and fewer panicked calls due to off-tone lot issues.
Sometimes, requests come for pigment carbon with extra-low ash or unique porosity. Battery separators or water filtration, for instance, bring their own hurdles. Ash must stay below 0.05% for electronics or ionic-sensitive projects. We address these concerns at every stage, from raw material selection to post-processing scrubs. Our laboratory runs ash and sulfur every shift; small differences translate to a world of trouble if ignored.
True pigment carbon stands apart from general-purpose carbon black, lampblack, or acetylene-based carbon types. We always emphasize that “pigment carbon” describes grades specifically treated and milled for color development, not just bulk blackening. It takes more than burning feedstock to meet automotive, ink, or high-end plastics requirements. We design surface functionalities—like optimized oxygen groups—to help binders or resins interact better, cut down on floatation, and reinforce color instead of washing it out. The furnace type, after-treatment, and grinding setup leave a fingerprint on how a pigment disperses in polyurethane versus alkyd or epoxy. High purity means less interference with catalysts or other additives. The details make the difference.
Cheaper oven-based carbon can clog screens or deliver unpredictable color because impurities and oversized particles remain. One recurring story from our QA team concerns customers who tried “pigment black” from a trade-only supplier, only to see clumping, streaks, and unstable shading—even with increased dispersant loads and longer mixing times. Restoring production after a pigment swap requires more than just a new bag: it means production halts, expensive rework, and customers questioning reliability. Premium pigment carbon cuts through these frustrations with consistent batch-to-batch results and fewer adjustments during manufacturing. We see the benefit most clearly in customers who come back after bad experiences elsewhere.
Coloring PVC cables, coatings, and consumer products would not be possible without a steady stream of reliable pigment. Pigment carbon lands in plastics everywhere—from power tool housings to kitchen appliances—where it must meet both visual and aging standards. UV and heat resistance show up front and center. From our vantage point, automotive manufacturers chase ever-deeper blacks for trim and underbody finishes, but will not tolerate wavy undertones or fading. Our model C-990 consistently sees orders from this sector, thanks to its fine particle size, high surface area, and quick dispersion.
Paint and coatings producers often tell us that pigment carbon sets the palette for every color, not only the blackest topcoats. In light shades, even a little off-tone pigment can throw off an entire production run. We maintain logistic flexibility in packaging—from bulk bags to fine-milled micro-pellets for precision dosing—because direct line feeding creates its own set of challenges. Adapting to changing viscosity and flow requirements for architectural paints has helped us streamline how we dry, mill, and pack each lot. Consistent particle size means fewer clogging incidents for automatic dosing lines and predictable outcomes for each paint batch.
Printers and ink makers care about gloss, rub resistance, and color transfer. Models like F-330—designed with specialized surface modification—hold up well in water-based and solvent-based ink. Feedback loops between our lab and customer plants often point out the difference a few nanometers in median size or subtle tweaks in oxygen-modified surfaces can make. Operators sharing direct press results—like fewer print defects or less cleaning in flexography—make our development process more than theory. Our R&D regularly spends time in end-user factories to support scale-up, troubleshoot, and pick up knowledge from the ground.
Rubber and elastomer compounding rely on pigment carbon to reinforce and tint everything from O-rings to shoe soles. Tire companies ask for pigments with moderate structure and well-managed surface activity, since excess absorption can impact rubber viscosity and cure profile. We balance primary particle size with aggregate porosity to avoid negative effects on mechanical properties. Every percent of impurity or out-of-place size shows up in failed batches, so we keep controls tight and process lines clean.
Some users focus on the immediate appearance. Others see beyond color, to the way pigment carbon affects processing, durability, and even the product’s perception in the market. Our technical team regularly compares pigment lots after deployment in the field—observing fade resistance in real outdoor exposures, gloss retention under sunlight, or ease-of-use in high-speed extruders. Over time, even small process improvements in our factory show up as competitive edges for downstream customers. For example, one coatings producer realized less raw material waste and faster cleaning between batches after switching to a low-dust, pelletized form.
From direct conversations, we know that a pigment that saves time, reduces cleanup, and delivers the same bold color month after month lets customers focus on innovation instead of fighting their materials suppliers. Even in edge cases—like special pigments for conductive coatings or antistatic applications—we measure added value by the number of reclaims avoided, the quality of finished goods, and customer willingness to stick to our material rather than shop around for marginally cheaper options.
Every chemical plant faces unpredictable swings in raw material quality, energy pricing, or transport delays. From our end, the key lesson has always been early intervention. Real-time particle size checks with dynamic light scattering, near-continuous ash measurement, and automated surface area analysis support decisions before batches leave the plant. Investing in better filtration and automated bagging pays back through less contamination and human error.
Communication matters just as much as equipment. Direct lines between process engineers and end-user technical teams open pathways to flag issues before they disrupt production. One memorable instance involved a plastics molder facing streaks and die buildup only on Tuesday runs. A closer look at our logbooks and their schedules revealed the issue stemmed from a rare fluctuation in spray-drying air temperature on weekends, which slightly altered pellet hardness. Adjusting this parameter stopped the issue cold—not a fix anyone could have guessed without trust and open dialogue.
On the back end, process automation does more than streamline labor—it moves real-time feedback closer to those who can respond. Operators watch for pressure drops, filter fouling, or color shifts on every batch, so problems do not wait for a day-end report to reach supervisors. These hands-on tactics, often built from experience and factory history, keep production tight even when outside factors shift.
Producing pigment carbon takes more than hitting performance targets. Customers expect compliance with global restrictions on PAHs, heavy metals, and volatile residues. For export-bound products, our compliance teams test and document lots to meet REACH, RoHS, and food-contact standards where needed. These standards are not optional, and controlling process emissions, packaging dust, and handling conditions keeps workers safe while guaranteeing product acceptance. Years spent refining our kiln venting and ash removal bear fruit through fewer workplace injuries and higher third-party audit ratings.
Safety knowledge translates directly into training for plant staff and customer support teams. Updates on best practices—like dust management, ventilation, and spill response—keep incidents rare and improve everyone’s productivity. Site visits from downstream users motivate us to keep facilities tidy and transparent, since nothing matches firsthand experience when it comes to building trust in a material.
Times have shifted. The latest conversations center around ecological impacts and resource conservation. Customers now look to us for products with lower embodied energy, better lifecycle analyses, and packaging with reduced waste. Internally, we sought to use both renewable and recycled carbons as a partial feedstock—not a fast or simple shift, but one that pays off as partner brands report their own carbon accounting. Waste heat recovery and tighter water loops have proven more successful than expected, making incremental gains over time.
Some buyers want formal “green” certifications or bio-based content reports. Interest in water-based dispersions, pelletized forms that minimize dust, or custom blends with recycled pigment points the way forward for development. We know that every small step in process or packaging accumulates into a bigger reduction down the chain. Ideas—like replacing one-way film bags with reusable bins for clean-feed customers—emerged from the ground up, sometimes with help from client engineering groups.
Still, there are trade-offs. Aggressively lowering energy input can sometimes impact consistency or surface chemistry. Thorough field trials, honest feedback with long-standing partners, and measured pilot scaling help us spot issues before they grow. As consumer demand shapes the industry, our challenge remains to balance tradition with forward-looking change—never compromising pigment’s critical role in performance or reliability.
Pigment carbon’s story goes deeper than data sheets or flashy advertising. Every grade, from high-jetness fine carbon for automotive finishes to soft granules used in daily commodities, has been built through years of technical learning and hard-earned trust. We see the lessons unfold in the lab and on the production floor—not polished up by marketers, but shaped by the challenges and successes of real-world manufacturing.
Through partnerships with customers, hands-on application support, and ongoing investment in people and plant, we continue to refine pigment carbon, pushing performance boundaries while staying true to our responsibilities. Whether the need is for deeper blacks, easier processing, or a sustainable footprint, the story of pigment carbon remains one of adaptation, expertise, and the shared pride that comes only from manufacturing the real thing.