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HS Code |
314824 |
| Chemical Name | Direct Yellow 117 |
| Cas Number | 4004-57-3 |
| Molecular Formula | C40H28N12Na4O16S4 |
| Molecular Weight | 1133.04 g/mol |
| Appearance | Yellow powder |
| Solubility In Water | Soluble |
| Dye Class | Direct dye |
| Application | Textile dyeing (mainly cotton) |
| Colour Index Number | 24895 |
| Maximum Absorption Wavelength | 401 nm |
| Ph Stability | Stable in neutral and alkaline conditions |
| Lightfastness | Moderate |
| Synonyms | C.I. Direct Yellow 117, Diazo Yellow |
| Toxicity | Low |
As an accredited Direct Yellow 117 factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Direct Yellow 117 is packaged in a 25 kg net weight fiber drum with an inner plastic lining, securely sealed and clearly labeled. |
| Shipping | Direct Yellow 117 is typically shipped in tightly sealed, moisture-resistant bags or fiber drums to prevent contamination and moisture absorption. Packages are clearly labeled with product and hazard information. During transportation, it should be kept in a cool, dry, and well-ventilated area, away from incompatible substances, following all relevant safety and regulatory guidelines. |
| Storage | Direct Yellow 117 should be stored in a tightly sealed container in a cool, dry, and well-ventilated area, away from incompatible substances such as strong oxidizing agents. Protect it from moisture and direct sunlight. Ensure the storage area is clearly labeled and secure to prevent unauthorized access. Use appropriate personal protective equipment when handling and follow all safety guidelines. |
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Purity 98%: Direct Yellow 117 with purity 98% is used in textile dyeing, where it provides high color strength and uniform dye uptake. Lightfastness grade 4: Direct Yellow 117 with lightfastness grade 4 is used in paper coloring, where it ensures long-lasting brightness and fade resistance. Water solubility 40 g/L: Direct Yellow 117 with water solubility 40 g/L is used in liquid inks, where it guarantees easy dispersion and consistent hue. Particle size D50 3 microns: Direct Yellow 117 with particle size D50 3 microns is used in digital printing inks, where it delivers smooth print quality and prevents nozzle clogging. Stability temperature 120°C: Direct Yellow 117 with stability temperature 120°C is used in polyester fiber dyeing, where it maintains robust color under high-temperature processing. pH stability range 6-8: Direct Yellow 117 with pH stability range 6-8 is used in latex paints, where it ensures color stability and compatibility with formulation conditions. Moisture content ≤2%: Direct Yellow 117 with moisture content ≤2% is used in dry pigment blending, where it improves storage stability and reduces clumping during handling. Shade index 32000: Direct Yellow 117 with shade index 32000 is used in stationery ink manufacturing, where it imparts vivid yellow tone and consistent shade across batches. Salt content ≤0.5%: Direct Yellow 117 with salt content ≤0.5% is used in denim garment dyeing, where it reduces risk of surface residue and achieves cleaner finishes. |
Competitive Direct Yellow 117 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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Direct Yellow 117 stands out for dyers and color specialists working in paper and textile mills. Over our decades in the chemical manufacturing sector, we have witnessed the growing demand for deep, robust yellow shades that don’t just pop for one wash—and Direct Yellow 117 answers that demand. With a keen yellow tone and sturdy build, it goes beyond a basic colorant; it serves as a reliable tool for those who need predictable, rich shades across production lots.
Direct Yellow 117 comes as a fine powder, dissolving swiftly in water. Our technical team keeps a close watch over purity using high-precision HPLC instrumentation. Content consistently checks above 95%, holding tight to international standards. Impurities—sulfates, metallic residues, dust—are filtered and removed well below commonly accepted limits. Quality assurance runs every batch of Direct Yellow 117 through standardized analysis to make sure neither solubility nor shade strength varies, even as volumes climb.
Operators in cotton dyehouses look for direct dyes with sharp affinity to cellulose fibers. Our Direct Yellow 117 clings to the fabric structure, transforming raw greige to a clean yellow without streaks or uneven pickup. Application on viscose, ramie, and flax meets the same demand for brightness and control. That’s the result of optimizing the molecular balance: a good direct dye must feature a steady ratio of coloring groups and solubilizing agents. Reproducibility matters more than visual appeal in the colorant trade, since textile mills can’t afford second runs for mismatch or fading. The product’s bath exhaustion proves high, holding fast to fabric after a standard sodium chloride and sodium carbonate treatment.
Direct Yellow 117 achieves a distinctive yellow that resists both dulling and unwanted green-cast. Throughout our factory's colorimeter readings, the shade strength rises to 100% of reference standard using less mass than lesser direct dyes. That drop in use rate translates directly into cost savings for our partners, who see reductions in chemical waste and clearer rinses downstream. No mill wants yellow that fades to cream after a few washes; our years of post-dye analysis show Direct Yellow 117 stands up to repeated launderings and even mild sunlight. Some older yellow dyes tend to brown on cellulose, an issue that prompted us to watch and adjust our intermediates and additive blends.
Manufacturers of tissue, kraft paper, pastel note stock, and even napkins need colorants that bind without clogging jets or leaving particulates. The fine granulation of our Direct Yellow 117 powder ensures smooth dosing in automated paper machines. We’ve supported specialty paper coaters striving for that perfect pastel or custom stationery look: Direct Yellow 117 integrates into their binders and finishes evenly, sidestepping bloom or patchiness under variable humidity. Laboratory stress tests confirm the dye’s resistance to migration and bleed, particularly in acidic or slightly alkaline paper systems.
Increasing environmental regulations shape every step in the manufacture of Direct Yellow 117. Over the years, we moved away from hazardous aromatic amines and switched to precursors with established ecological records. Effluent controls on our site capture spent process water, steering us well under local and international discharge limits. In partnerships with textile customers, we track the product’s overall chemical oxygen demand contribution, documenting reductions against historical direct yellow dyes. Mill teams ask for dyes that make the grade in ZDHC or GOTS audits; Direct Yellow 117’s composition and emissions data make those reports easier to close.
Direct Yellow 117 carries a low direct hazard for operators. Plant teams practice straightforward dust management—using sealed hoppers and basic air filtration keeps exposure minimal. There’s always a push for cleaner, safer workplaces, so our manufacturing process eliminated classified sensitizers and cut volatile byproducts that used to linger from the old days. Training sessions in dyehouses highlight the stability of Direct Yellow 117 in storage, reducing concerns about premature spoilage or dust clumping in high-humidity environments. Bulk packaging now uses biodegradable liners, addressing both employee safety and disposal in lean manufacturing cycles.
Chemists in earlier decades relied on direct yellow dyes that missed the mark in performance or reliability. Many legacy products contained mineral fillers that inflated weight without matching tinting strength, resulting in uneven results and the need for frequent corrections. Problems like fiber crocking and pale-off after just a few washes frustrated dyehouse teams and raised customer complaints. With Direct Yellow 117, updated synthesis cycles and modern filtration techniques pull out foreign ions and insoluble residues. Customers tell us about the drastic drop in downstream filter changes and machine clogs compared to the yellow dyes they used in the past. This shift also comes from customer-driven batch testing: working side-by-side with mills, we fine-tuned our recipe until repeatability and yield hit targets.
Textile and paper plants often run hundreds of color recipes every season. Direct Yellow 117 blends with other direct and reactive dyes in trichromatic and pentachromatic sets, which lets color labs match designer palettes from bright lemons all the way to warm beiges or forest greens. Over time, we found that high-purity Direct Yellow 117 doesn’t sully blues, reds, or violets in the line—it keeps its profile sharp even in the presence of other dye molecules. That clean integration lets printers and dyers produce custom shades for seasonal fashion lines and niche stationery collections without heavy adjustments in formulation. We built relationships with colorists and shade card developers who praise the smooth compatibility, noting that the dye's stability trims down trial runs and color fixing needs.
Direct Yellow 117 exhibits strong fastness ratings in sunlight and moderate exposures to bleach and alkaline washes. Our internal quality records, drawn from real-world industrial laundries, show minimal yellow shift across repeated home laundering cycles. This reliability matters not only for clothing brands, but also for uniforms and institutional linens that see hundreds of uses. Compared to similar direct yellow products, this dye stands firmer during alkaline perspiration tests—a property we honed through carefully controlled substitution and purification steps on the manufacturing line.
Factory and mill managers have a clear message: they want less troubleshooting, not more. Direct Yellow 117 sidesteps common headaches in bulk production. Its low dust and hydrophilic properties speed up mixing and dosing, letting automation keep up with fast-paced production lines. Decades ago, “yellow bleeding” on wool blends and deep navy mixes caused complaints; today our tight particle benchmarks and high water solubility shrink those incidents dramatically. Rollers and nozzles stay cleaner through extended production runs, saving both downtime and maintenance costs. If a customer runs into water hardness issues in their dye baths, our technical support suggests precise salt and buffer adjustments, drawing on field reports and lab-backed strategies.
The product finds a primary market in cellulose, but blend mills that run on poly-cotton, viscose-polyester, or ramie-cotton gain from Direct Yellow 117 as well. Blends often reveal the weaknesses of lesser dyes—poor take-up on the synthetic side, streakiness on the natural. Our own trials, verified by independent labs, tracked color pickup and retention on multiple fiber types, allowing dye masters to run more stable “one bath” procedures. This flexibility reduces the need for specialized yellow stocks onsite, and the feedback from these blend customers has shaped our ongoing product upgrades.
Modern mills demand full traceability, driven by both supply chain audits and brand specifications. Each lot of Direct Yellow 117 comes with a comprehensive certificate detailing batch origin, date of synthesis, analysis results, and compliance findings. We invested in digital tracking—each barrel and sack maps directly to the day, shift, and reactor, providing a clear audit trail from factory floor to store shelf. This approach not only satisfies buyer requirements, it adds a layer of confidence for colorists who need to troubleshoot or evaluate dye behavior across production cycles. The practice grew out of first-hand observation: losing track of small variations—even a subtle one in pH or sodium salt ratio—can cost a mill thousands in rework and lost time.
Over the past decade, disruptions in raw material shipments and freight capacity have rattled chemical supply chains. Our site maintains deep relationships with local and regional precursor suppliers, minimizing disruptions that hit less-integrated dye factories. Years ago, delays on primary amines ran up lead times for some customers; that pushed us to qualify multiple raw material sources and keep strategic inventory on hand. Direct Yellow 117 now ships to dyehouses on four continents, conforming to both local and international labeling, compositional, and transport regulations. Long-term partners value not just the product quality, but the reliability with which shipments turn up on time—something we continue to prioritize.
Labs, mills, and printers have all chimed in on how Direct Yellow 117 performs once it leaves our site. We treat that feedback as a central part of our development strategy. If a formulation challenge surfaces, our team cross-references it against production histories and global field reports—refining processing steps as we go. A number of adjustments over the years grew directly out of conversations with QA heads and machine operators: tweaks in the drying process to curb dust, new screen meshes to catch stray agglomerates, and upgraded packaging to ensure dry, clean, effortless transfer. Real-world performance in the field grounds our quality program, taking learning from daily factory experience and feeding it straight back to the reactors and QA stations in our plant.
Continuous color innovation doesn’t rest on past wins. As sustainability requirements grow stricter, we keep refining our processes for both energy use and end-of-life impacts. Some partners request more biodegradable colorants, so we break down dye structures, test new intermediates, and check for both fading resistance and lower environmental footprints. Water scarcity in certain regions also reshapes how our customers use Direct Yellow 117, prompting us to share best practices on closed-loop cooling, bath recycling, and optimized cleaning cycles. We keep an open line with our partners as regulations and fashion trends shift, believing that meeting those changes head-on serves not only us, but the entire supply chain.
Direct Yellow 117’s success story didn’t start with a search for the brightest shade or the lowest price. It rose from listening to partner factories and hands-on industry veterans needing cleaner, consistent, safer dyeing tools. Drawing on our years at the bench, among the reaction kettles and on the shop floor, we built a colorant that delivers for everyone along the value chain. From cost-saving consistency and clean-running production to rigorous compliance and open technical dialogue, the product reflects what we stand for. As more textile and paper companies raise the bar for color performance, clean chemistry, and future-proof quality, Direct Yellow 117 takes its place as a trusted workhorse—an example of what chemical manufacturing can achieve through experience, accountability, and a grounded focus on real-world needs.