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HS Code |
100147 |
| Cas Number | 1330-38-7 |
| Molecular Formula | C37H25N5Na2O8S2 |
| Molecular Weight | 829.73 g/mol |
| Appearance | Dark blue powder |
| Solubility | Soluble in water |
| Color Index Number | C.I. 24175 |
| Melting Point | Decomposes |
| Usage | Textile dye |
| Odor | Odorless |
| Ph 1 Solution | 6-8 |
| Light Fastness | Good |
| Synonyms | Direct Blue 71 |
As an accredited Direct Fast Brilliant Blue BL factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Direct Fast Brilliant Blue BL is packaged in a sealed 25 kg fiber drum lined with a plastic bag for moisture protection. |
| Shipping | Direct Fast Brilliant Blue BL is shipped in tightly sealed, clearly labeled containers to prevent moisture ingress and contamination. It should be transported as a non-hazardous dye under dry, ventilated, and secure conditions. During shipping, the material must be protected from direct sunlight, heat, and incompatible substances to ensure product stability and integrity. |
| Storage | Direct Fast Brilliant Blue BL should be stored in a tightly sealed container in a cool, dry, and well-ventilated area, away from direct sunlight and sources of ignition. Keep the chemical away from incompatible materials such as strong oxidizing agents. Ensure containers are properly labeled and protected from physical damage. Handle with care using proper personal protective equipment to avoid spills or contamination. |
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Purity 98%: Direct Fast Brilliant Blue BL with 98% purity is used in cotton textile dyeing, where it ensures high color yield and uniform shade distribution. Molecular weight 616.54 g/mol: Direct Fast Brilliant Blue BL with a molecular weight of 616.54 g/mol is used in paper coloration, where it provides excellent solubility and easy processability. pH stability 4-8: Direct Fast Brilliant Blue BL with pH stability between 4 and 8 is used in synthetic fiber dyeing, where it maintains consistent color strength across varying process conditions. Particle size < 20 microns: Direct Fast Brilliant Blue BL with particle size below 20 microns is used in ink manufacturing, where it results in superior dispersion and smooth printing performance. Fastness to light grade 4: Direct Fast Brilliant Blue BL with fastness to light grade 4 is used in flag and banner production, where it offers prolonged color retention under outdoor exposure. Water solubility 60 g/L: Direct Fast Brilliant Blue BL with water solubility of 60 g/L is used in dye formulation for aqueous systems, where it enables rapid dilution and uniform mixing. Stability temperature up to 100°C: Direct Fast Brilliant Blue BL with stability temperature up to 100°C is used in hot dye bath applications, where it resists thermal degradation and color fading. Moisture content < 2%: Direct Fast Brilliant Blue BL with moisture content less than 2% is used in pigment blending, where it ensures long-term storage stability and minimizes clumping. |
Competitive Direct Fast Brilliant Blue BL prices that fit your budget—flexible terms and customized quotes for every order.
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Direct Fast Brilliant Blue BL, often recognized by the industry as a vibrant blue synthetic dye, has gained solid trust among textile and paper manufacturers worldwide. Coming off the production line, each particle of BL reflects strict quality control and years of know-how in chemical synthesis. Our comprehensive process covers everything from raw material screening to final drum packing. Our operators and chemists work side by side, guided by laboratory checks that monitor shade, solubility, and moisture content. There’s no shortcut here—precision at every stage protects batch-to-batch consistency.
Years spent optimizing scale-up reactions taught us that the backbone of this dye lies in its robust chemical structure. The copper complex at the heart of BL helps it resist washing out and fading. In the dyeing tanks, we see firsthand how a stable, water-soluble structure brings predictability to coloring results. Whether clients are running rapid jet dyeing, exhaust dyeing, or padding methods, the dye acts reliably in basic and neutral environments. We make BL in deep navy, royal blue, and a span of intense hues that show off the classic character of a genuine direct dye.
Our Direct Fast Brilliant Blue BL model usually comes as a powder or granular form designed for efficient dissolving and storage. Every lot leaves the plant with clear documentation of color strength, fastness ratings, and moisture percentage. We measure everything: analysis includes spectrophotometric absorbance, relative fastness to light, sweat, washing, and rubbing. Technicians take pride in hitting the target shade every time—no off-color, patchiness, or impurities that interfere with end-use. Our typical strength delivers high yield per kilogram, meaning users achieve desired shades without overdosing.
We publish specifications based on actual test data. Dye content remains at a consistent high, rarely below 80% purity, with minimal insoluble material. We pay attention to salt content and pH for hassle-free preparation. Cost efficiency isn’t just marketing; tight controls mean clients work with reliable, clean dye that cuts down on reprocessing and waste.
Over the last decade, we watched the expectations of mills, garment factories, and converters change. Traditional direct dyes earned a reputation for speed on cellulosic fibers, especially cotton, viscose, and their blends. BL proved its worth by delivering both intensity and softness, opening the door for fashion companies, uniform suppliers, and home textile brands.
On our end, we carry out dyeing trials in simulated industrial baths, replicating the same recipes that partners use in their plants. This habit enables us to troubleshoot real-world stain release, shade build-up, and migration issues. Even small changes in bath pH, water hardness, or liquor ratio can challenge performance; years on the shop floor exposed us to dozens of troubleshooting cases, from uneven dye take-up to filter clogging. Feedback from customer labs and shop floor staff keeps us honest about labeling, ensuring the product remains sensitive to both automation and small-lot processing.
Textile mills choose BL for its versatility on cellulosic substrates. On cotton, the color develops quickly, allowing batch and continuous dye lines to run with minimal downtime. BL shows especially vivid results in towels, jeans, workwear, bed linens, and print base preparation. The same applies to viscose rayon and modal, where other blue dyes often give muddy tones. Small accessory producers—shoelaces, ribbons, flag makers—praise the dye for producing crisp, attractive shades without complicated auxiliaries.
Beyond textiles, BL enters the world of paper coloring. Large volumes of bright writing paper, napkins, and cardboard packaging all benefit from the dye’s high tinctorial strength. Boxboard converters reach for this dye when looking for deep coverage at low application rates. We regularly supply BL for schoolbook, notebook, and colored paper manufacturing. In the agriculture and leather trades, certain grades support marking, anti-counterfeiting, and visual tracking needs. Our R&D people see growing cross-industry demand wherever a strong, bluish hue and direct water solubility save time and cost.
By producing at scale, we face all the challenges—raw material variability, temperature swings, and global logistics. There are times when dye strength varies due to batch-to-batch inconsistency in intermediates or copper source. Early on, we saw this variance impact shade quality and yield, forcing more vigilance in supplier qualification and plant analytics. We instituted third-party labs to double-check purity and fastness. This hard-earned discipline keeps us at the forefront of reliability.
Our engineers recall cases where filter failures or undetected residue caused customer complaints. No amount of paperwork saves reputation—the real solution is open feedback loops and investment in modern quality management systems. Every time a customer returns samples or submits technical queries, we treat it as an opportunity to strengthen internal controls. For BL, filtration and fine grinding ensure no granular residues deposit on finished goods. Our plant added inline particle size analyzers and higher-grade micron filters to control these issues.
Another challenge crops up in environmental compliance. Regulations around effluent color and chemical oxygen demand grow stricter each year. Our factory invested in closed-loop water recycling and advanced oxidative bleaching of spent dye liquor. Research continues into further color removal from wastewater. As a responsible manufacturer, these actions prove more valuable than claims—a clean process backs up every shipment.
From our production floors to client mills, we often see confusion between BL and other direct blue dyes. Direct Fast Brilliant Blue BL carves its own path compared to common alternatives like Direct Blue 86, Direct Blue 199, or traditional benzidine-based types. Our chemists note that BL’s copper complex vastly improves washfastness and light resistance. Fabrics dyed with BL withstand more runs through the laundry and prolonged UV exposure without dulling or color bleeding.
Another factor sets BL apart: it responds better to rapid-dyeing machinery. Unlike older direct blues, it seldom forms aggregates that settle or cause blockage in automated dosing pumps and jets. This keeps process equipment clean and reduces downtime due to clogging. Customers dealing with tighter timelines and shorter fashion cycles value this stability. Modern factories, especially in countries with strict health and environmental audits, benefit from lower heavy metal content and formaldehyde-free recipes used in our manufacturing.
Some dyers prefer alternative direct and reactive blue dyes for deeper navy shades or higher fastness. Still, these products require more complex application processes, additional chemicals, or elevated bath temperatures. BL remains the practical choice for mills looking to hit target shades with less Auxiliaries. Paper converters point to BL’s solubility and strong paper fiber interaction as reasons to pick it over less pure or unstable generic blue dyes. User feedback from schoolbook and notebook manufacturing confirms our experience: BL rarely leaves uneven patches, paper breaks, or excess dye bleed, even on lower-grade pulps.
We meet buyers who ask about sustainability claims or label compliance for textiles entering Europe, North America, or Japan. Direct Fast Brilliant Blue BL earns trust by remaining free from restricted aromatic amines, and every production run aligns with local and international safety standards. Our process avoids problematic solvents and minimizes energy use through heat recovery. Textile importers concerned about contaminants find our certificates and audit trails satisfy demanding brand requirements, keeping them free from regulatory penalties or consumer backlash.
Produce enough dye, and you see its impact on the whole manufacturing supply chain. BL’s history runs through large mill complexes and family-run workshops. Whether talking to a chief engineer from a global denim brand or a quality manager at a regional notebook producer, one theme repeats: consistency cuts cost and worry.
Sometimes buyers need help fine-tuning bath recipes, especially during shade switches or water hardness shifts. We offer hands-on guidance, built from real troubleshooting sessions, not generic troubleshooting guides. For example, adjusting soda ash levels prevents limescale and binding without stripping shade. Pre-dissolving BL in hot softened water (not above 80°C) yields a quicker, streak-free transfer to the main vat—this advice came from hundreds of in-person plant trials, not a textbook.
Textile production cycles move faster each season. Designers chase new looks, and mills must adapt to shorter lead times. BL adapts to these pressures by letting users hit both light and dark shades without excessive dosing or recirculation. In the lab, our specialists test for batchwise compatibility—if a customer faces contamination risk or needs a shade adjusted after mid-batch, we run bench experiments and supply process maps. We learned that communication and sample exchanges matter as much as numbers on a sheet.
Industry-wide, we see pressure to cut water and energy use. Direct Fast Brilliant Blue BL responds by working efficiently at slightly lower temperatures than classic direct dyes, and it tolerates both soft and hard water. We recommend periodic equipment cleaning and dye solution pre-filtration—mistakes here account for most issues in continuous operations. Over time, this approach reduces rework and helps customers avoid costly plant shutdowns.
The paper industry faces its own challenges. As demand for colored office grade, napkins, and schoolbooks continues, it’s critical to balance deep shades with bleed resistance and batch reproducibility. In our own tests, BL gives more uniform coverage and less edge bleed. Papermakers who use recycled pulp trust BL’s stability—it resists fiber-induced shade drift and works well in slush or direct addition methods. We help customers adjust pH and degree of beating for optimal bonding, using tailored—never generic—formulation tweaks that reflect hands-on learning.
Each year, supply chain shocks and regulatory updates reshape our business. We face increasing demands for transparency, safety, and lower environmental impact. We respond by expanding our analytics lab, deepening supplier audits, and upgrading production controls that track every kilo from raw input to final drum. Nowadays, even minor contamination or deviation triggers rapid action—everyone on the line knows why this matters.
Our vision for Direct Fast Brilliant Blue BL looks beyond orders and shipment volume. We keep our ear to the ground, learning from textile R&D labs, color matching specialists, and purchasing teams. Complaints and compliments drive us to tighten controls, reduce waste, and maintain a traceable, auditable record for every lot. Our chemically trained staff understand that technical service—whether delivered across the globe or at the next town’s weaving workshop—is the lifeline of modern manufacturing.
The risk of substitution is real; cheaper imitations flood the market, making big promises but falling short on reliability. We lose occasional deals when buyers chase the lowest price, but many return after failed production runs elsewhere. The education that comes from those failures cannot be faked: showing receipts on analysis, letting customers visit the plant, and laying out long-term field performance always win in the end. Authenticity, not flash, keeps BL relevant—especially as global brands scrutinize every link in their supply chains.
We look ahead with attention to broader industry needs. Innovations in recycled textile fibers, advanced nonwovens, and specialty packaging raise new challenges for dyes. BL’s adaptability gives it an edge in coloring nontraditional cellulose sources, whether made from bamboo, agricultural waste, or post-consumer content. Research continues into lowering the energy footprint of dyeing, reducing auxiliary consumption, and streamlining dye wash-off. Every breakthrough, whether in pre-wetting steps or bath reuse, powers BL into future-proof territory.
We work closely with customers charting their own sustainability journeys. As the push for waterless and low-carbon dyeing grows—from e-flow to digital inkjet—we test BL’s compatibility every step of the way. Recent experience shows BL can anchor hybrid recipes where partial substitution with reactive dyes lowers total chemical load and speeds up rinse cycles. Our support staff always shares the latest compatibility findings, so mills can meet both productivity and environmental goals.
For those working in paper and packaging, we keep pace with the shift to safer, food-contact grades and compostable substrates. BL’s strong binding to cellulose supports easy de-inking and pulping recovery, answering end-of-life disposal concerns for printed and colored papers. We run color migration tests on finished packaging to assure compliance with retailer demands and changing legislation. As sustainability standards tighten worldwide, we update processes and labeling—so downstream clients meet ecolabels with confidence.
The journey to high-quality blue dyes comes from daily lessons on the factory floor, not just formulas handed down from the lab. Our loyalty to consistent, traceable production holds up to the closest scrutiny. For clients who demand more than ordinary blues—a richer hue, less fade, easier handling—Direct Fast Brilliant Blue BL shows its value in real-world results.
We never stop learning, never stop improving. Our story is written on the dyehouse walls, in the feedback from partners new and old. With each drum that leaves our line, we honor the simple promise: deliver what works, every time, for every order. BL stands by those who want reliability, performance, and real experience behind each shade. So long as manufacturers keep searching for the perfect blue, we’ll keep putting in the work to keep BL at the forefront.