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HS Code |
636787 |
| Product Name | Acid Red BL |
| Chemical Class | Azo dye |
| Cas Number | 5858-39-9 |
| Appearance | Red powder |
| Solubility | Soluble in water |
| Application | Textile dyeing |
| Molecular Formula | C20H13N2NaO4S |
| Color Index Number | CI 42090 |
| Ph Range | 4.0 - 7.0 |
| Light Fastness | Moderate |
| Molecular Weight | 400.38 g/mol |
| Maximum Absorption | 510 nm |
| Ionic Nature | Anionic |
| Stability | Stable under normal conditions |
| Odor | Odorless |
As an accredited Acid Red BL factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Acid Red BL is packaged in a 25 kg fiber drum with a secure plastic liner, featuring clear labeling and hazard information. |
| Shipping | Acid Red BL should be shipped in tightly sealed containers, protected from moisture and direct sunlight. Store and transport in a cool, dry, and well-ventilated area, following all relevant regulations for hazardous chemicals. Ensure proper labeling and documentation, and keep away from incompatible substances to prevent accidents or contamination during transit. |
| Storage | Acid Red BL should be stored in a tightly sealed container in a cool, dry, and well-ventilated area, away from direct sunlight, moisture, and incompatible substances such as strong oxidizers. Ensure the storage area is clearly labeled and within recommended temperature limits. Use appropriate personal protective equipment (PPE) when handling to prevent exposure to dust or spills. |
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Purity 98%: Acid Red BL with purity 98% is used in textile dyeing applications, where it provides vibrant and consistent coloration on synthetic fibers. Molecular weight 600 g/mol: Acid Red BL with a molecular weight of 600 g/mol is used in paper staining, where it achieves excellent color strength and penetration. Light fastness grade 4: Acid Red BL with light fastness grade 4 is used in leather finishing, where it ensures prolonged color retention under light exposure. Solubility 50 g/L: Acid Red BL with solubility of 50 g/L is used in water-based ink formulations, where it enables uniform dispersion and high tinting efficiency. Melting point 210°C: Acid Red BL with a melting point of 210°C is used in high-temperature printing processes, where it enhances dye stability and prevents degradation. Particle size <5 μm: Acid Red BL with particle size less than 5 μm is used in digital textile printing, where it allows for sharp image resolution and smooth printing performance. pH stability 2–7: Acid Red BL with pH stability in the range 2–7 is used in acid dyeing procedures, where it maintains color quality across varying acidic conditions. Heat resistance up to 120°C: Acid Red BL with heat resistance up to 120°C is used in yarn dyeing, where it minimizes color fading during steaming and heat treatment. |
Competitive Acid Red BL 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
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Every production shift, the aroma of fresh-batched dyes drifts through our workshop. Acid Red BL, a signature dye rooted in our process for years, keeps our tanks humming and customers coming back. Decades on the factory floor tell a better story than any catalog summary. Delivering reliable color performance starts with controllable ingredients and ends with consistent textile results—no matter if the fabric is silk, nylon, or wool. The model we manufacture shows up in textile houses worldwide, appreciated for its vivid shade and practical handling.
Our Acid Red BL product, often designated by the industry as C.I. Acid Red 1, doesn’t differ much in basic chemical structure from historical classics, but in reality, small process tweaks change everything for the user. Each batch undergoes internal tests for shade strength and solubility. By using tightly-sourced raw materials and maintaining batch records through an eye-watering number of test swatches, we catch shifts that a generic trader would miss.
Granule size and dust control aren’t buzzwords for us—factory staff handle every sack, and customer feedback about clogging in automated dosing units matters. By keeping our average particle size in the right range, Acid Red BL flows smoothly in high-throughput dye rooms and small workshops alike. Dried under low-temperature conditions, the resulting product shows minimal degradation. Finer material works quickly into dye baths, supporting clear, repeatable color take-up especially on fiber blends. We calibrate every step, not out of some legacy manual, but because every operator here has lived the headaches of streaky color or sticky residues.
Dye houses and fabric mills need to see the same red, box after box. Acid Red BL from our reactors delivers shade integrity even at high exhaust ratios. Once, a local nylon finisher shared that other reds left them with batch-to-batch shade drift. On investigating, we found trace variations in other suppliers’ granule compositions. After switching to our material, their QC reports flagged steady results and fewer re-dyes on their continuous lines.
Fastness is the backbone of every textile dye’s reputation. Years ago, a client sent samples back from a commercial laundry trial. Staining and bleeding under repeated washes cost them clients. After exhaustive reformulation efforts, we improved our purification step, boosting acid fastness and water resistance. Today, mills running long dye cycles routinely reach commercial-grade light and wash fastness values using our Acid Red BL as their primary red for nylon and silk.
We still keep a collection of customer samples in the test room—nylon tracksuits, silk scarves, wool blends—each specimen tells a story about how the dye faces up to real cleaning chemicals and sunlight. Lost business stings harder than lost yield, so our teams care more about lasting color on garments than any marketing claim.
Working with Acid Red BL in a real-world production environment gives hands-on insight into how it stands out from the crowd. Some acid reds—like Acid Red 18 or Acid Red 73—look similar on paper, but mills report less evenness or run into filtration issues mid-batch. Operators in the dye house learn to spot differences: with Acid Red BL, the solution clarity means less machinery downtime and lower defect rates. In dye baths run slightly acidic, our red shows strong build-up even on low-denier yarns, avoiding the blotchy, uneven coverage seen with lower-grade alternatives.
The chemistry sounds straightforward: sulfonated aromatic compounds with sodium counter ions. Our team keeps up with other manufacturers’ digests and conference notes, but we find that minor impurities in processing shift viscosity, shade, and filterability. Acid Red BL handles well in jet dyeing, jigger, as well as conventional exhaust dyeing. In hand-dye workshops, it gives bright, deep shades without overpowering other colors. Textile printers who need tricky shading effects say the product layers cleanly, avoiding muddy overlaps that plague less pure grades.
Instead of listing dry technical data, we walk labs through the specs that have made mills stick with us for years. Dye content and shade strength are checked with calibrated spectrophotometers. Our lots usually rate above established standards for color strength, so regular users may actually dial down their dosage—an advantage that compounds with larger orders. Moisture control counts for a lot: overdried batches dust up and cause inhalation complaints; wet ones clump in feed systems. Operators handling the bulk product notice an even pour and minimal static. The deep, dust-free granules are easy to scoop and dissolve, saving both time and mess.
On the environmental side, plenty of mills must clear strict wastewater benchmarks. Our process leaves a lower salt residue than most comparable reds, making it a more attractive option for facilities facing tight effluent controls. Once, a buyer flagged concern over azo-free compliance, and our batch history and raw material certifications passed review without a hitch.
Dyehouse managers focus on more than shade cards—they want to know what happens under variable pH, heat, or reactivity with softeners. Our R&D folks spend time onsite during customer pilot trials, not just in their own labs. Over time, we’ve learned that while Acid Red BL handles small pH drifts with grace, trace metals in water and certain textile auxiliaries can impact hue. By fine-tuning our purification and filtration processes, we consistently help customers correct for local conditions. Our operators expect questions about how Acid Red BL interacts with brighteners or resist treatments, and we advise on process tweaks without hedging.
Partners testing new printing techniques or eco-friendly auxiliaries value quick feedback. Our technical team runs simultaneous sample dyeings with different fabric loads and auxiliaries, helping mills standardize their protocols and avoid costly batch failures. Any product that can’t keep up with changing industry demands doesn’t stay on the line for long.
Years of manufacturing teach a direct lesson: prevention beats reaction. Acid Red BL offers predictable solubility and dye uptake, but equipment age, variable water quality, or careless auxiliary addition can still spark issues. Some buyers once blamed uneven fabric color on the dye, but a visit to their facilities revealed cold spots in the dye bath. Our customer support team offers more than email responses—they walk lines, test live samples, and recommend fixes tailored to actual floor conditions. Tighter control over dyeing parameters keeps costs down by reducing re-work.
Textile producers experimenting with higher output sometimes push dye concentrations beyond design limits. In those cases, our in-plant support highlights best results at typical exhaustion rates, sharing strategies for salt and acid leveling agents alongside the dye. While not every plant has the same needs, keeping open technical lines with operators ensures color quality and production throughput both stay strong.
Acid Red BL doesn’t live in isolation—mills use it as a component of complex trichromatic blends or mixed with cationic, reactive, or direct dyes for specialty applications. True to our color legacy, our production teams keep a ready library of blend recipes and interaction charts. Shade control and reproducibility matter most for customers planning multi-shade batch schedules. If Acid Red BL shifts in strength or impurity content, the whole palette loses balance. We know this because historically, even a fraction of a percent drop can push a pale rose to deep burgundy, ruining entire runs. We share this feedback with customers, advocating regular on-site QC swatches and providing fresh adjustment guidelines with each shipment.
Custom blends using Acid Red BL for niche applications—think ceremonial textiles or high-end upholstery—push the limits of what one dye can deliver. For mills targeting small-lot specialty runs, we advise on stability and compatibility with organic softeners, flame retardants, and finishers. The right guidance saves not only product but also valuable customer relationships.
Environmental standards, especially in Europe and emerging Asian markets, compel us to improve product and process choices. For Acid Red BL, this means better removal of harmful trace byproducts, tighter wastewater controls, and cleaner packaging. We stopped using paper-lined sacks years ago, switching to high-density, low-porosity liners to reduce moisture uptake and eliminate fiber contamination in the mill. The feedback improved both product shelf life and worker satisfaction.
Internally, every batch of Acid Red BL undergoes random spot checks for banned amines and residual heavy metals. Keeping regulatory paperwork auditable isn’t a luxury—importers and multinational brands expect nothing less. Industry certification audits sometimes run unannounced, so maintaining best practices is second nature for the team. Our wastewater is neutralized and treated using a process designed to exceed national and local standards, protecting local waterways and community trust.
The growth of advanced synthetic blends and finer deniers challenges traditional acid dye applications. Our product teams collaborate regularly with research labs adjusting dye uptake properties for microfibers and technical yarns, fine-tuning the molecule’s purity to minimize streaks and ensure deep penetration. Customers moving from natural to synthetic fibers see improved compatibility with Acid Red BL, especially in settings reliant on rapid, low-liquor-ratio dyeing.
Digital inkjet and transfer printing require a dye that stays stable under variable jet pressures and contact times. We’ve adapted Acid Red BL by screening for fine microparticulate contaminants, which can otherwise block nozzles and ruin print runs. Print houses want to cut downtime, and after switching to our broader-screened grades, several major customers experienced sharper images and fewer line shutdowns.
Year after year, operators and QC staff from around the world send us their toughest questions and most demanding requirements. Our answer isn’t a generic product, but rather a dye created with firsthand production floor experience. Every bag of Acid Red BL reflects work from teams managing heat exchangers, filtration units, dye tanks, and customer inquiry calls. Competitive pricing gets a product onto the dock, but only reliability and genuine technical support keep it integrated into batch schedules year after year.
With each shipment and every piece of feedback, we improve together with the brands and mills we serve. Operators trust Acid Red BL because they’ve used it in hot, wet, noisy workrooms and seen first-hand what steady performance means to bottom lines and brand reputations.
Industry never stands still. Regulatory agents sharpen their focus, consumers grow more demanding, and technology marches forward. As a chemical manufacturer, we sweat every detail so our customers can keep their promises. With Acid Red BL, we deliver a colorant prepared for industry shifts, collaborative technical challenges, and genuine performance claims rooted in everyday factory realities. As we look to the future—smarter mills, tighter resources, greater environmental care—our commitment runs through each workers’ shift and every bag shipped out the door.