|
HS Code |
306738 |
| Product Name | Fast Yellow HR-G |
| Chemical Class | Azo dye |
| Appearance | Yellow powder |
| C I Number | C.I. 24895 |
| Cas Number | 6378-24-5 |
| Solubility | Soluble in water |
| Molecular Formula | C16H12N4Na2O7S2 |
| Molecular Weight | 510.40 g/mol |
| Applications | Textile and paper dyeing |
| Light Fastness | Good |
| Ph Stability | Stable between pH 5-9 |
| Odor | Odorless |
As an accredited Fast Yellow HR-G factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | The packaging for Fast Yellow HR-G contains 25 kg of yellow powder, sealed in a sturdy fiber drum with an inner plastic bag. |
| Shipping | **Shipping Description for Fast Yellow HR-G:** Fast Yellow HR-G should be transported in tightly sealed containers, protected from moisture and direct sunlight. Store in a cool, well-ventilated area away from incompatible substances. Ensure labeling complies with transport regulations for dyes and chemicals. Handle with appropriate personal protective equipment during loading and unloading. |
| Storage | Fast Yellow HR-G should be stored in a tightly sealed container in a cool, dry, and well-ventilated area away from direct sunlight, heat, and incompatible substances such as strong oxidizers. Avoid exposure to moisture and prevent the formation of dust. Ensure proper labeling and keep away from food and drink. Use chemical-resistant containers and follow all relevant safety guidelines. |
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Purity 98%: Fast Yellow HR-G with 98% purity is used in textile dyeing processes, where it ensures uniform color intensity and high batch-to-batch consistency. Particle Size Fine Grade: Fast Yellow HR-G fine grade is used in water-based ink formulations, where it provides superior dispersion and smooth print quality. Melting Point 160°C: Fast Yellow HR-G with a melting point of 160°C is used in plastic coloring applications, where it prevents thermal degradation and maintains vivid coloration during extrusion. Lightfastness Grade 6: Fast Yellow HR-G with lightfastness grade 6 is used in outdoor coatings, where it delivers prolonged color retention under UV exposure. Viscosity 10 mPa·s: Fast Yellow HR-G with 10 mPa·s viscosity is used in emulsion paints, where it enables easy handling and ensures homogenous pigment distribution. pH Stability 5-8: Fast Yellow HR-G with pH stability range 5-8 is used in waterborne adhesives, where it prevents color shift during formulation and application. Heat Stability 200°C: Fast Yellow HR-G with heat stability up to 200°C is used in polyurethane foams, where it resists discoloration under thermal processing conditions. Molecular Weight 412 g/mol: Fast Yellow HR-G with a molecular weight of 412 g/mol is used in packaging films, where it ensures optimal migration resistance and regulatory compliance. |
Competitive Fast Yellow HR-G prices that fit your budget—flexible terms and customized quotes for every order.
For samples, pricing, or more information, please contact us at +8615365186327 or mail to admin@ascent-chem.com.
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Tel: +8615365186327
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Every manufacturer says they understand their products, but making organic pigments like Fast Yellow HR-G shows you how small details shape real value for customers and partners. Our shop floors mix, test, and ship ton after ton of HR-G each year. Even so, there’s more to Fast Yellow than a technical data sheet or a specification PDF. Those papers miss the hours our team spends ensuring that the yellow shade remains consistent, the performance meets tough conditions, and the powder flows smoothly in actual production. When a pigment batch leaves our tanks, we aren’t just meeting a checklist—we’re handing off our reputation, built step by step over years.
Fast Yellow HR-G, chemically known as Pigment Yellow 83, anchors the high-grade class of disazo pigments. The current model comes as a bright yellow powder, with a shade people notice right away—a crisp, slightly reddish yellow, vibrant without looking artificial. From years of batch production, we notice the subtle things: the texture, the sieve analysis, the way light bounces from the pigment even before it’s mixed into a resin or plastic batch.
Downstream partners in plastics, inks, and coatings depend on this stability. HR-G holds up under heat when processed in polyolefin extrusion. Plastic film factories rely on its color strength batch after batch. We’ve supplied masterbatch manufacturers who noticed the pigment surviving aggressive compounding, holding its color under high shear and temperature cycles. Offset ink makers come back to order HR-G because their own production quality checks proved the color doesn’t drift and bleed across substrates, even on absorbent stocks. This means less rework, less waste, and more uptime for our partners.
Fast Yellow HR-G stands out from other yellow pigments. In the world of organic yellows, choices range from Monoazo pigments like Yellow 12 or 13 all the way to the more complex HR-G’s. Monoazo grades work well for simple applications, but when customers want both brightness and durability in sunlight, HR-G moves to the front of the line. Our product score high on lightfastness tests and resists fading when exposed to the sun—critical for outdoor plastics, packaging, and some automotive plastics.
Compared to competing grades like Pigment Yellow 17 or 74, Fast Yellow HR-G gives stronger color intensity and improved migration resistance, and less warping in finished plastics. Our tests show its heat stability reaching up to 200°C during short processing. Factories using masterbatch extrusion or blow molding in PE and PP tell us this makes all the difference—when the pigment melts and blends cleanly, it means smoother runs, less cleaning, fewer line stoppages.
Every batch of Fast Yellow HR-G meets strict fineness and residue control targets. Our process controls check through high-speed mixers, ball mills, and triple roll mills to ensure pigment disperses easily and doesn’t clump. Grind tests in our lab catch any outliers. Oil absorption, measured in grams per 100g of pigment, lands within an optimized range. This supports both pigment loading efficiency and gloss control in customers’ paint and plastic recipes.
For water-based ink plants, we prepare HR-G in powder and flushed paste forms—each flowed, filtered, and tested for dispersion, so there’s no fear of undissolved specks crossing the press. Solventborne ink manufacturers tend to ask for the higher purity version, free from salts and filterable dust. Over the years, we’ve retooled our process to address those needs, shrinking unwanted residue well below industry limits. These steps came from real plant feedback—not theory from a corporate office.
Yellow pigments face intense pressure to meet eco-labels and non-tox requirements. Back when we first scaled production, regulatory expectations changed rapidly. We retested our intermediates, ruled out listed aromatic amines, and moved to cleaner filtrates to clear EU, US, and Japanese regulations. Customers sometimes ask about trace metal and halogen content, so our QC includes spot checks for lead, cadmium, and other restricted substances. We adopted changes not from fear, but because our customers in paints, plastics, and printing wouldn’t risk their own business bets on questionable content.
We also face batch-to-batch color drift problems, especially if raw material supplies tighten. In the past, this meant time lost to customer complaints. Our answer has been close partnership with key upstream suppliers. We specify toluidine red base with fixed purity, cross-check incoming lots, and carry out routine color trials. Operators run side-by-side grind comparisons for every pigment charge, as the human eye and hands-on trial reveal what equipment sometimes misses.
In a masterbatch or concentrator, Fast Yellow HR-G goes farther than original expectations. Our customers producing color concentrates share that HR-G lets them reach a higher color strength, sometimes by 10% to 15%, compared to monoazo yellows. They need less pigment per kilogram of finished concentrate, cutting costs while maintaining a bright visual pop. For extrusion and injection-molded plastic parts, HR-G shows minimal plate-out and low migration under normal use, an important fact in toys, household containers, and food-safe packaging where pigment movement could compromise safety or stability.
For printing inks, HR-G lays down sharp dots and lines, holding its own under both rapid drying offset and solvent-based flexography. The pigment resists overprinting smears, and does not bleed even when applied in thick layers on packaging films. Fast Yellow HR-G’s low oil absorption means longer press runs before cleaning and lower ink formulation viscosity at standard pigment loadings. We’ve seen small printers scale up to larger batch sizes just because the color keeps performing at higher speeds.
Seeing competitors’ batches, it’s clear not every yellow pigment uses the same grade of intermediates or follows the same grinding or flushing process. Some manufacturers chase price alone, so finished pigment turns out gritty, weak in tone, or full of difficult dust. Our factory avoids those shortcuts, not to meet a spec sheet, but because every hour a customer spends cleaning a clogged extruder or ink mill because of flaky pigment damages trust, sometimes beyond repair.
We still remember a major masterbatch partner describing days lost to caking issues from a third-party pigment. By switching to our Fast Yellow HR-G, they saw loading times cut and downtime drop, leading to a measurable lift in their daily output. Experiences like these drive our insistence on batch consistency and surface treatment upgrades. We never stop hunting for subtle tweaks in the micronization process, surfactant blends, or final mill runs.
On our shop floor, we see how dust control and packaging matter far more than remote customers guess, especially in export. Our current Fast Yellow HR-G packs into low-dusting bags that shed less pigment on operators and warehouse floors. Coated PE-liners inside bulk bags now make a practical difference, keeping products in spec after weeks in storage or long shipping journeys. Direct stories from overseas partners—where humidity or transit jostling would once ruin a bag—remain important for our R&D and logistics teams. We have retooled packaging lines multiple times based on these conversations.
Global demands for cleaner, more sustainable pigment production reach deeper than certificates on a wall. In the last decade, customers from Europe and North America brought us new questions about VOC-free production, carbon footprint, and clean water reuse. We shifted cleaning cycles, invested in waste minimization, and upgraded to closed-loop water systems. Our pigment process now reclaims a majority of water, and our filter cakes qualify for disposal under stricter norms. It takes real investment and follow-up to keep regulatory records ready for review at any time, but failing at these requirements would cost us markets and long-term partnerships.
At the formulation level, we keep records on non-phthalate applications where customers look for less hazardous material risks. Over the years, we’ve supplied HR-G formulations into critical-use products—children’s toys, food wraps, medical disposables—where one regulatory slip can grind a whole line to a halt. Our technical team stands ready to field queries about content, compliance, or batch records, since we know real production never waits for a next-day reply.
Each drum of Fast Yellow HR-G draws on years of plant experience. Quality doesn’t end at the reactor or filter press. Every lot we ship stacks on the pride—and sometimes the frustrations—of chemists, operators, and QA techs who keep color values in line, dryness perfect, and spill risks minimal. As a chemical manufacturer, we tackle “small” headaches—powder sticking in line hoppers, caking in high summer, unexpected color drifts from upstream intermediates, or evolving shelf-life demands with each container size. These realities drive our focus not just on making a reagent-grade powder, but on producing a pigment that works in real-world factories and presses, where pressures and deadlines set the pace.
Feedback loops run both ways on our factory floor—a large customer’s panel of end-users can spot an issue faster than even our best in-house test, and we act on every credible alert or complaint. A dye transfer or streak in just one sheet of finished film brings focused attention inside our QA lab and triggers review of grinding time, packing conditions, and, sometimes, logistics routes across borders. Risking shipment delays or batch recalls is never easy. It’s our own money, time, and trust on the line, and we answer to that by fixing root causes each time.
Many pigment buyers worry about color drift and inconsistent performance, especially as more get driven to low-cost sources. To answer this, our approach centers on both source material control and real testing in simulated-use conditions. If a batch fails a shade or strength test under extrusion or ink “drawdowns” that mimics real downstream processes, we pull and rework it, even if lab numbers suggest acceptability. Devices cannot replicate the factory’s rhythm, but our dual-check system—mechanical and hands-on—prevents most costly errors before shipments go out.
Another industry pain point is environmental and employee health concerns from pigment dust. By introducing dust-suppressed forms and improving bagging technique, we reduced airborne particles in our plant, cutting health risks and cleaning time. Some customers requested custom micronized “low-dust” versions, so we now track airborne emissions at bagging. This lets downstream plants near schools or under new green rules keep using HR-G without compliance headaches and with improved plant morale.
For the graphics and ink trade, clean dispersion means everything. Every printer has cursed a bad pigment charge that clogs lines and ruins press downtime. We learned to add tracing agents and markers into our shipments, letting ink plants test for compatibility right after pigment arrival. This step, small as it seems, nips surprises in the bud. Downtime, to both small family print shops and industrial printers, costs more than any upfront savings on cheaper pigment dust.
Years on the production side teach what textbook chemists might miss. Differences in particle surface “wetting” determine how a pigment works across different resins, plastics, and inks. Improving surfactant blends, which sounds minor, makes the pigment easier to disperse in water or solvent-based systems. If Fast Yellow HR-G resists “flocculation” and remains bright without additional dispersants, customers notice and stick with us. Tweaking grind time, watching oil absorption numbers, monitoring the feel as much as the measurement—all these create a pigment fit for heavy-duty factory work, not just test tubes.
Automation matters, but trained staff still set the benchmark on quality decisions. We depend on plant veterans who can spot pigment clumping from a conveyor belt or detect color drift with the naked eye. Daily, the team makes calls about rejecting, regrinding, or rerouting pigment drums, guided by hard-earned skill.
We work long-term with partners, not just as bulk suppliers, but as hands-on problem solvers. Questions from customer technicians trigger process trials in our application lab. If a masterbatch partner asks for improved dispersibility in LDPE, or if an ink maker needs finer grind for screen applications, we tailor process steps—sometimes reworking a single big batch. Over time, this makes us a true partner, not just a vendor.
During raw material spikes or logistics snags, we talk candidly with our customers. Years of running a chemical plant show that hiding problems always makes them worse. We share batch analysis, update on trials, and bring customers into the loop if delays or surprises arise. This open-door policy has rescued both parties before—when compliance rules suddenly shift, when technical specs tighten, or when market pressures prompt a rethink on usage.
Repeat business comes from a level of product trust. Every factory manager wants a pigment that runs right—the first time and every time after. Fast Yellow HR-G earns that trust by surviving the hard parts—high-speed extrusion, hot melt compounding, wet ink dispersion, and harsh outdoor exposure. Maintaining this quality takes regular review of plant practice, investment in staff, and listening to the real stories from the floor, not just the marketing department.
Over the years, Fast Yellow HR-G has helped packaging, film, masterbatch, and ink plants increase throughput, reduce downtime, and keep their end colors bold and reliable. That’s how the product earns its place. Fast Yellow HR-G continues to evolve, not because we chase change, but because every improvement starts with a direct call, a challenge, or a new application trial from a fellow manufacturer.