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HS Code |
146483 |
| Product Name | Direct Black TBRN |
| Chemical Class | Azo dye |
| Colour Index Number | C.I. Direct Black 22 |
| Appearance | Black powder or granules |
| Solubility | Soluble in water |
| Molecular Formula | C44H24N14Na6O17S6 |
| Application | Textile dyeing |
| Strength | 200% |
| Light Fastness | Moderate |
| Ph Stability | Stable in neutral and alkaline pH |
| Primary Use | Cellulosic fibers (cotton, viscose) |
| Cas Number | 6473-13-8 |
As an accredited Direct Black TBRN factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Direct Black TBRN is typically packaged in a 25 kg woven bag with a plastic inner liner, labeled with product details. |
| Shipping | Direct Black TBRN is shipped in tightly sealed, moisture-proof containers or bags, typically lined with polyethylene to prevent contamination. The containers must be handled with care to avoid spillage or exposure. During transport, it should be kept in a cool, dry place, away from incompatible substances and sources of ignition. |
| Storage | Direct Black TBRN should be stored in a cool, dry, well-ventilated area, away from direct sunlight and sources of heat or ignition. Keep the container tightly closed and properly labeled. Avoid contact with oxidizing agents and acids. Store away from food and drink. Use suitable materials for storage containers to prevent contamination or reactions with the substance. |
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Purity 98%: Direct Black TBRN with a purity of 98% is used in textile dyeing, where it ensures deep shade development and uniform coloration on cellulosic fibers. Particle Size 50 microns: Direct Black TBRN with a particle size of 50 microns is used in paper manufacturing, where it provides consistent dispersion and enhanced print clarity. Stability Temperature 120°C: Direct Black TBRN with a stability temperature of 120°C is used in high-temperature dyeing processes, where it maintains color strength and resists degradation. pH Stability 4–10: Direct Black TBRN with pH stability in the range of 4–10 is used in leather finishing, where it delivers reliable color fastness under varying processing conditions. Water Solubility 40 g/L: Direct Black TBRN with water solubility of 40 g/L is used in ink formulation, where it enables easy blending and homogeneous ink flow. Molecular Weight 650 g/mol: Direct Black TBRN with a molecular weight of 650 g/mol is used in the coloration of rayon fabrics, where it promotes efficient uptake and wash durability. |
Competitive Direct Black TBRN 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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In the business of color and chemicals, Direct Black TBRN has found a place in textile plants and dye houses that rely on consistent color results. As the manufacturer, we understand textile processors want deep shade, strong fastness, and batches that don’t drift from week to week. Our teams have spent years testing, scaling, and tuning this product to meet the demands of bulk textile coloration, especially cotton and viscose fabrics. Direct Black TBRN, produced in the form of powder or granular formulations, gives heavy black tones favored across clothing, home textiles, and industrial applications.
Direct Black TBRN, known chemically by its CI number, is a versatile dyestuff. The product appears as an intense black powder. We achieve stable shade through strict process oversight at each reaction phase, followed by precise filtration and drying, yielding a material low in insolubles. This makes for smooth dispersion in aqueous dye solutions, reducing filter clogging downstream in automatic jet or padding machines. Process consistency means textile finishers get repeatable results batch after batch, avoiding rework and waste.
Direct Black TBRN runs at a solid dye concentration, typically ranging between 200% and 300% strength versus older types. This lets customers reach target shade with less material, lowering chemical load and effluent treatment needs. For many processors, exhaustion rates are a core concern. During dyeing, our product achieves high affinity to celluloses, fixing on cotton or rayon with minimal hydrolyzed dye in rinse effluent. This helps mills cut costs in soaping-off stages and reduces chemical surfactant use.
Shade control relies on both purity and the cutpoint between main and subsidiary dye components. With Direct Black TBRN, we use high-resolution separation and blending to tighten color tolerance, avoiding brownish or bluish off-shades that can trouble other black dyes. We routinely analyze each lot’s absorption curve using spectrophotometry, ensuring shade compatibility for brands and converters working to defined color standards.
Direct Black TBRN finds its main uses in dyeing cellulosic fibers and blends—cotton, viscose, sometimes spun blends with polyester. Most of our volume ships to rotary and pad dyeing facilities producing uniform black shades in bed linens, T-shirts, socks, and upholstery textiles. The high substantivity of TBRN also aids in jet dyeing of yarns intended for deep black denim effects. The material maintains good solubility and flow, a must in continuous dye ranges where undissolved particles cause roller marks and streaks.
Garment batch houses, particularly those serving export markets, specify Direct Black TBRN for its reproducibility. They look for shade reproducibility, low off-tone risk, and minimal tail-off in large batch operations. In our work with finishing engineers, feedback often turns to the product’s wash and light fastness. With optimized molecular design, TBRN resists fading from laundering and sunlight better than most conventional blacks, protecting customer reputation in value-conscious apparel markets.
Direct Black TBRN stands apart from legacy black dyes on several fronts. Many older black types rely on broad-banding multiple chromophores, leading to more shade drift and variable performance on different fibers. Direct Black TBRN reaches full shade at lower dye loading, making it a suitable choice for cost-sensitive markets. Unlike some direct dyes that heavily bleed or crock, TBRN strikes a balance between strong fixation and manageable afterwash.
We design this dye specifically for less shade migration during or after dyeing, addressing processor complaints about “ghosting” or white floors from tracking. In continuous dyeing, mills notice less tail-off—meaning less need for stop-start batch cleanup. The high affinity and cleaner exhaust also lower the load of unfixed dye reaching the wastewater plant, a genuine environmental plus. Regulatory bodies monitor black dyes sharply, given some historic analogues raised safety or effluent flags. Our synthesis aligns with modern regulatory requirements, and the molecule profile has been tested against current restricted substance lists.
In our experience, the textile customer worries most about day-to-day shade drift and dye performance during scale-up—from one lab trial, to the first batch, to full-factory use. Color control issues in black shades can result in huge re-sorting costs or even lost contracts with retail groups. In response, we maintain tight controls from initial raw materials, to synthesis time, to granulation. Each batch receives testing not just for color strength, but for key physical features like grain size, solubility profile, and presence of contaminants. We also keep reference samples to quickly track and investigate any quality claims from partner mills.
Converters that do long runs for chain stores or uniform suppliers calculate color drift closely. Black can be unforgiving; tiny hue shifts, invisible in lighter colors, become obvious in a wall of t-shirts on a retail rack. We keep our process repeatable using in-house standards, and work jointly with key customers to supply tailored technical support if they change equipment or water conditions. Our technical staff remains available to trouble-shoot unexpected process changes—be it unexpected local water hardness or a shift in auxiliary chemicals.
Regulatory realities keep changing, and so do expectations around environmental footprint. Direct Black TBRN fits into this shift, as it offers higher exhaustion rates and lower chemical load in post-dye treatment. Clean shade development and low metallic residue reduce discharge concerns at textile wet processing plants. As a manufacturer, we use modern waste gas capture and water recycling during TBRN production, aiming to shrink our own resource use and emissions. Results so far show lower process water volumes and energy per ton of dye compared to older black dye routes.
In recent years, more processors have focused on supply chain transparency. Our approach involves providing full batch certifications tailored to each lot—details that include heavy metal and aromatic amine content, following current regional and brand-specific standards. Customers in high-compliance markets use this information in their own compliance filings and in annual disclosures to global brands. Auditors routinely visit our plant to verify processes and documentation, giving assurance that regulations are genuinely followed at the source.
Making a competitive black dye for today isn’t just about finishing a chemical reaction. Each year, global customers ask for faster production turnaround, improved consistency, and less waste in downstream operations. Our response keeps evolving: better mixing systems, inline color measurement, automated machinery to track batchwise differences in moisture, and comprehensive training for chemical handling and safety. The long-term partnerships with textile factories let us see where our product stands in the real world, not just in test beakers.
From time to time, field results still turn up improvement areas. For instance, in very hard water regions, even Direct Black TBRN may show reduced exhaustion rates. We work with customers to optimize auxiliary mixes or, in some cases, re-tune granulation to counter specific processing hurdles. Another focus area lies in dye recovery and minimizing sludge in wastewater. By pushing for higher solubility and cleaner exhaustion, we help partners trim effluent treatment costs—an impact felt not just in regulatory reports, but in lower day-to-day operating expenses.
Working directly with dye house production teams gives us daily insight into what’s working and what creates extra work on the shop floor. Users frequently note that Direct Black TBRN flows easier, dissolves faster than other brands they have trialed, and causes fewer stoppages in their dyeing lines. While no product is perfect for every scenario, mills processing broad goods see strong benefit in reduced downtime and more predictable color, even running at higher line speeds.
We also value feedback from garment house finishers, who have grown more color-aware as end-users scrutinize color fastness under rapidly changing lighting. Direct Black TBRN resists greening under LED or daylight equivalence more effectively than many competitive blacks, which answers a growing retail request as lighting standards shift in stores and workspaces. Because retail customers buy on visual impression, that subtle difference often determines return business.
Maintaining supply partnerships means more than shipping out containers. Our technical and field service teams routinely assist in startup trials, production troubleshooting, and color issue diagnosis. Dyeing is affected by a range of daily shifts—water supply, machine pressure, auxiliary supplies, operator error. By seeing firsthand how and where Direct Black TBRN performs best, we better inform our process and product upgrades. Joint development projects with leading dye houses push the entire field forward and inspire our own quality team to meet higher standards.
Our laboratory remains open to trade partners’ technicians, and we encourage side-by-side testing, from bath make-up to final fixation. This collaboration leads to improvements in shade depth, solubility, and environmental performance. Continuous product improvement isn’t just technical: we share best dye-house management practices between partners, arranging visits and open benchmarking, to raise standards for all. Direct Black TBRN’s story is as much about these relationships as about the molecule itself.
The textile world changes rapidly. Fashion trends shift color demand, new fibers come into play, and regulatory rules tighten further. We anticipate these turns by tracking changes in consumer brand standards as well as regional environmental targets. Our work with Direct Black TBRN doesn’t stop with fabrication; we review new routes for lower byproduct formation, safer intermediates, and reduced energy use every production season. The path ahead—clean, reliable, and competitive dyestuffs—will keep us busy, but also keeps us motivated as manufacturers contributing to a responsible textile economy.
Trust in any chemical comes from real-world experience. Direct Black TBRN supports dark, uniform color with process simplicity. All improvements stem from the shared work between our plant teams and our industry partners. As color applications and regulations keep evolving, so too will our approach to making Direct Black TBRN not only reliable, but continually better for our customers.