|
HS Code |
727583 |
| Chemical Name | Acid Black 241 |
| Cas Number | 12220-07-6 |
| Molecular Formula | C32H21N7Na2O7S2 |
| Molecular Weight | 753.67 g/mol |
| Appearance | Black powder |
| Solubility In Water | Soluble |
| Dye Class | Azo dye |
| Color Index Number | 20470 |
| Usage | Textile and leather dyeing |
| Maximum Absorption Wavelength | 600-615 nm |
| Ph Range | 2-5 |
| Stability | Stable under normal conditions |
| Storage Conditions | Keep in a cool, dry place |
| Ec Number | 235-449-2 |
As an accredited Acid Black 241 factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Acid Black 241 is supplied in a 25 kg blue plastic drum with a secure lid, labeled with chemical details and safety warnings. |
| Shipping | Acid Black 241 is securely packed in high-quality, sealed bags or drums to prevent leakage and contamination. It is shipped in compliance with standard chemical regulations, with clear labeling and safety documentation. Storage and transport require cool, dry conditions, and the containers must be handled carefully to maintain integrity and safety. |
| Storage | Acid Black 241 should be stored in a cool, dry, well-ventilated area away from direct sunlight and incompatible substances such as strong oxidizers and bases. The container must be tightly sealed and clearly labeled. Keep away from moisture and sources of ignition. Use corrosion-resistant storage containers and avoid dust and spillage during handling to ensure chemical stability and safety. |
|
Purity 98%: Acid Black 241 with a purity of 98% is used in textile dyeing, where it ensures uniform color strength and shade reproducibility. Molecular weight 650 g/mol: Acid Black 241 with a molecular weight of 650 g/mol is used in wool fiber coloration, where it delivers deep black hues with high penetration efficiency. Stability temperature 120°C: Acid Black 241 with a stability temperature of 120°C is used in high-temperature dye bath processes, where it prevents thermal degradation during application. Particle size D90<10µm: Acid Black 241 with a particle size D90 below 10µm is used in inkjet ink formulation, where it provides smooth dispersibility and prevents nozzle clogging. Solubility 100 g/L at 80°C: Acid Black 241 with solubility of 100 g/L at 80°C is used in silk printing, where it achieves vibrant prints without residue formation. Light fastness rating 5: Acid Black 241 with a light fastness rating of 5 is used in automotive interior fabrics, where it enhances resistance to fading under UV exposure. pH stability range 2-6: Acid Black 241 with a pH stability range of 2 to 6 is used in leather dye processes, where it maintains consistent shade and prevents precipitation. Viscosity grade low: Acid Black 241 of low viscosity grade is used in continuous dyeing machines, where it ensures rapid absorption and minimal streaking. Melting point 250°C: Acid Black 241 with a melting point of 250°C is used in powder coating applications, where it retains color integrity after curing. Salt tolerance up to 50 g/L: Acid Black 241 with salt tolerance up to 50 g/L is used in salt-heavy dye baths for nylon, where it preserves dye uptake and prevents aggregation. |
Competitive Acid Black 241 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.
We will respond to you as soon as possible.
Tel: +8615365186327
Email: admin@ascent-chem.com
Flexible payment, competitive price, premium service - Inquire now!
For years, we have filled drums with Acid Black 241, seeing the black powder shift from pigment to promise right in our dye house. Every batch starts with raw materials chosen for reliable purity, then pushed through reactions that have been tested, tweaked, and trusted by workers who know every curve of the vessels. This product’s reputation has not grown out of marketing alone but from textile mill feedback and returns on production lines. Many approaches have come and gone in dye manufacturing. Some seek economy, some go for deeper shades or easier solubility, but consistent output still wins loyalty. Acid Black 241 carries that confidence because we’ve answered far more calls about how it performs in real tanks than about what it looks like in a catalog.
If you’ve ever watched a run of wool or nylon fabric roll through a dye bath, you know the importance of level dyeing. Acid Black 241 remains in demand because it fixes well to fibers, produces strong, deep shades, and keeps waste to a minimum. Among the long series of acid blacks, only a few deliver the sort of repeatable shades that pass under inspectors’ lights and end up approved for garments, upholstery, and technical textiles. We have tested our product on a wide spectrum of pH settings and water hardness levels common in industrial plants. Under these different real-world conditions, Acid Black 241 achieves full color build, minimal fading, and compatibility with auxiliaries in continuous or exhaust processes. It isn’t the broadest spectrum acid dye, but delivers solidity in the colors it does reach. On black-specified jobs, especially on polyamide or wool blends, mills have told us this product’s depth and coverage save rework and money on shade corrections.
Spec sheets carry numbers such as dye content and moisture, and technicians can compare those at a glance. Acid Black 241 lands in the class of disazo dyes, known in trade as C.I. Acid Black 241, with high tinctorial strength, a reason it takes less powder to achieve the saturation customers expect. Unlike direct black dyes, which struggle with wash-fastness on protein fibers, our acid class black builds solidly and doesn't bleed out under typical laundry cycles. If a competitor’s product runs weaker or requires costly after-treatments, switching to a product with stronger output per kilo makes a simple difference. Feedback from QA labs often highlights superior rub-fastness and lower staining of adjacent fabrics after dyeing. This is a direct result of our precise control of the reaction, filtration, and granulation steps.
Some installations run into trouble with foaming or dye bath stability; behind the scenes, we keep batch granule size tightly controlled so our powder dissolves completely and evenly. No residue means less maintenance for dye machinery. For brands working on restricted chemical lists or sensitive export destinations, we regularly certify batches for compliance with updated eco-toxicology standards. We meet important regional regulations without cutting product strength or throwing off existing color recipes. Acid Black 241’s specifications do not just look good on a certificate—they reflect a design forged by the complaints and requests of real users.
Acid Black 241 fills an important spot in the acid dye spectrum. Wool and nylon processors depend on it for penetration and shade richness. We regularly supply to factories producing men’s suiting, uniform fabrics, sportswear, and carpets. In these end uses, clarity and depth of black matter more than subtle undertones. Textile engineers have stretched our product in both exhaust dyeing and continuous dye lines, even in high-speed operations, and found it performs admirably. Given the way modern mills push for higher throughput, a predictable product cuts back on downtime. On polyamide, close monitoring of dosage brings out the maximum intensity, and we openly share guidelines from our own technical staff who troubleshoot customer runs daily.
Some customers use Acid Black 241 in blends with other acid dyes to develop custom tones. The fact that the powder mixes uniformly means no streaking or patchiness on complex patterns. Where others have seen issues with cross-contamination or uneven shade buildup, our product’s grounding in repeatable chemistry helps keep production lines moving. Special demands come from companies pushing for low salt or sustainable processes. Our lab team offers guidance on recipes that drive down process water and auxiliary loads, helping mills meet both environmental and operational targets without dulling shade results.
On paper, acid black dyes may appear interchangeable, but the reality on the floor is rarely that simple. Mills complain about variability from batch to batch or shifts in supply between importers. Since we control production from raw material infeed to packed powder, we keep batch tracking clear and reliable. Shipments leave the plant with full documentation—a practice learned from hard years navigating changing export requirements and customer rejections. That level of control helps mills keep their own records clean.
Power outages, heatwaves, and sudden raw material price spikes do not shut us down, though they test our mettle. We keep extra safety stocks of finished product in cooled warehouses. This means customers see fewer disruptions, even if logistics hit rough patches. Our technical staff stays on call during major mill start-ups or color launches. They troubleshoot shade issues, recommend real adjustments rather than canned advice, and answer the challenge when a new synthetic blend comes up on a production line. Acid Black 241 doesn't just go into a box and ship out; we back up every delivery with tested procedures, supporting the journey from color kitchen to finished fabric.
Years ago, a partner running a busy dyehouse on the outskirts of Istanbul noticed a soft buildup in their jet machines. Instead of switching to more aggressive cleaners or risking damaging equipment, they sent samples back for our lab to evaluate. By tweaking grind and filtration steps, we cut down on insolubles and got feedback that results improved by the next week. Lessons like this sharpen our production guides, shape our QC protocols, and teach newer staff to listen closely when customers report on performance or issues. That feedback-loop culture means Acid Black 241 grows smarter and more efficient over time.
We invite mill managers to share real run sheets and issues rather than just faxing off standard queries. Sometimes, a dye tank’s hot spot causes localized shade differences. In others, rapid fill rates affect how powder disperses through solution. Our product designers walk customers through adjustments in dosing, auxiliary selection, and cooling rates. Every adjustment aims to catch variables at play in tough industrial environments—recognizing the complexity of large-scale dyeing and helping customers adapt in a competitive business environment. Acid Black 241 keeps earning trust because every claim about performance is tested by those on the front line, not just read off a computer screen.
Dye manufacturers like us carry the responsibility of adapting products to the ever-changing demands from top brands, regulators, and supply chains. Acid Black 241 proved its worth through years of customer collaboration, adaptation to stricter discharge rules, and stepwise reduction of restricted chemicals—well before rules demanded it. Our R&D iterates alongside production chemists, not over their heads, making sure each improvement in product safety or environmental friendliness doesn’t compromise the performance mills rely on.
Modern buyers push for certifications such as OEKO-TEX, GOTS, and ZDHC-compliant chemistries. We run our products through those tests with independent labs and update certification regularly. Feedback from dyehouses asking for lower biocide content led us to review and adjust our formula. Now, pots and machines can be cleaned with fewer harsh chemicals, with no impact on dye strength or coverage. Requests for higher concentration get balanced against dusting and flowability, leading us to optimize powder processing without creating handling problems for production teams. Acid Black 241’s ability to pass these hurdles rests on continuous improvement rooted in direct experience inside dye facilities.
Sourcing and process control matter. We don’t buy finished dye powder from elsewhere and slap on a label; we know the chemical reactions by heart and monitor every critical step. That begins with the selection of intermediates, which we screen for reactivity and possible contaminants. Our reactors and filtration tanks receive regular upgrades, both to maintain output and tighten parameter control. Batch samples get sent to in-house analytic testing and reviewed by chemists who follow up with both technical standards and real fabric tests. Copies and substitutes in the market, often from patchwork supply chains, struggle to match our reliability on customer lines.
Once manufactured, our Acid Black 241 goes through multiple points of quality control, not just spot tests. We incorporate requests from dyehouse supervisors—like requests for early-shipping samples or batch-specific color cards—to ensure every incoming delivery meets expectations. Repeat customers know that every bag reflects decades of adjustments, troubleshooting, and on-the-job learning. The fabric finishing line needs a dye that won’t produce surprises; our product delivers predictability because every detail, from moisture content to granule hardness, is built into the real production recipe and not left to chance.
Brand reputation hinges on more than an INCI code or registry number. We’ve had customers test dyes from multiple sources to cut costs. Differences quickly become clear: unexpected shade drift, residue, hard-to-dissolve granules, or failures under lightfastness tests. These lessons always bring reluctant users back to our consistent supply. Plants running continuous lines for large retail orders especially favor our Acid Black 241, as every missed shade holds up shipment approval and can cascade to rejected lots or delayed purchases. Widely-touted claims by cheaper suppliers often fade under the pressure of round-the-clock operation. Only tested manufacturing, grounded in open dialogue with users, keeps production predictable and efficient.
Our plant teams take pride in feedback where Acid Black 241 performs without need for over-engineered auxiliaries, extensive re-dyeing, or extended after-treatment. The focus remains on delivering strong, lasting color that fires up quickly in bulk mixing, flows with no clumping, and supports aggressive production timelines. We hear repeatedly that this strength helps keep line managers confident and labor costs in check. In direct comparisons, our material delivers higher color value per kilogram, meaning greater control over costs, less powder inventory, and a smaller waste footprint.
Our involvement with mills does not stop with color. Many textile plants now operate under tighter energy constraints and wastewater treatment rules. Not all products can survive reduced liquor ratios or changes in effluent treatment protocols. Acid Black 241’s solubility and stability help plants hit strict output goals while reducing water and energy use. We routinely troubleshoot alongside plant operators, helping optimize recipe schedules and integrate our product into both legacy and cutting-edge dyeing technology.
Plants scaling up capacity benefit from a product ready to keep pace. Fast, predictable dissolution reduces the chance of unexpected residues, which can foul jets, nozzles, or recirculation pumps. By delivering a finely-ground, tightly-filtered powder, we support smoother maintenance cycles and longer uptime between cleaning stops. We keep technical bulletins open and adjust recommendations based on operator feedback. If a client shifts from wool to synthetic blends or moves from batch to continuous dyeing, our support scales to meet those new challenges.
Color quality does not exist in a vacuum. Buyers, designers, and end-users all judge garments and technical fabrics by how true and deep the blacks show under natural and artificial light. Our Acid Black 241, forged through exhaustive fabric testing and on-floor trials, maintains clarity even after commercial laundering or extended sun exposure. We log typical and worst-case fading scenarios, ensuring buyers know the real durability, not just the best-lab-case scenario. This is especially critical for products aimed at uniforms, outerwear, or contract textiles destined for heavy public use.
Tight grain control, batch consistency, and continuous dialogue with dyehouse teams ensure that each application—whether a smooth jersey, a high-pile carpet, or a technical trim—emerges with the depth and steadiness of a reliable black. Blending with secondary dyes or prepping specialized recipes for unique customer requests always include clear, empirically-based guidance on dosage, process timing, and after-care. The result: fewer surprises and more reliable production with minimized risk of re-dyeing, over-treating, or customer returns.
The chemical manufacturing landscape does not stand still, and neither do we. As more suppliers enter the fray and textiles become more technically demanding, only real, demonstrated value keeps a product relevant. Acid Black 241 persists as a mainstay partly from legacy trust, but mostly by staying tuned to what happens on the floor: spools winding off, inspectors grading fabric, managers scheduling tight production runs. Our commitment means never settling for old recipes or ignoring shifts in customer expectations.
We have shaped our Acid Black 241 through every learning—listening to how each batch behaves, each challenge that arises, and each customer call that comes in. The future demands greater transparency, tighter controls, and chemistry rooted not in theory but in applied practice. Every kilogram shipped, every question answered, and every new specification met reflects an ongoing partnership between our plant and each client’s floor. True reliability in dyeing comes from a proven, responsive, and continually improving approach—one written into every granule of Acid Black 241 we produce.