Disperse Blue BR

    • Product Name: Disperse Blue BR
    • Alias: Disperse Blue 354
    • Einecs: 227-761-6
    • Mininmum Order: 1 g
    • Factroy Site: Yudu County, Ganzhou, Jiangxi, China
    • Price Inquiry: admin@ascent-chem.com
    • Manufacturer: Ascent Petrochem Holdings Co., Limited
    • CONTACT NOW
    Specifications

    HS Code

    321560

    Product Name Disperse Blue BR
    C I Number C.I. Disperse Blue 354
    Appearance Blue powder
    Chemical Class Anthraquinone dye
    Molecular Formula C16H10BrNO4
    Molecular Weight 360.16 g/mol
    Solubility Insoluble in water, soluble in organic solvents
    Melting Point Approx. 210°C
    Application Dyeing of polyester and acetate fibers
    Light Fastness Good to very good

    As an accredited Disperse Blue BR factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

    Packing & Storage
    Packing Disperse Blue BR is packaged in a 25 kg fiber drum with a plastic inner liner, clearly labeled with product details.
    Shipping Disperse Blue BR is shipped in tightly sealed, chemical-resistant containers, such as fiber drums or plastic barrels, ensuring protection from moisture and direct sunlight. It is labeled according to international transport regulations. Proper ventilation and handling precautions are maintained to prevent spills, exposure, or contamination during transit.
    Storage Disperse Blue BR should be stored in a cool, dry, and well-ventilated area, away from direct sunlight, heat sources, and incompatible materials such as strong oxidizers. Keep the container tightly closed to prevent moisture absorption and contamination. Proper labeling and secure storage help ensure safety. Personal protective equipment should be used when handling to avoid inhalation or skin contact.
    Application of Disperse Blue BR

    Purity 98%: Disperse Blue BR with purity 98% is used in polyester fabric dyeing, where it ensures high color yield and shade consistency. Molecular weight 380 g/mol: Disperse Blue BR of molecular weight 380 g/mol is used in continuous dyeing processes, where it provides efficient pigment dispersion. Melting point 210°C: Disperse Blue BR with melting point 210°C is used in high-temperature dye baths, where it delivers uniform coloration without thermal degradation. Particle size <5 μm: Disperse Blue BR with particle size less than 5 microns is used in microfiber polyester finishing, where it enhances penetration and color uniformity. Viscosity grade low: Disperse Blue BR with low viscosity grade is used in inkjet textile printing, where it enables smooth formulation and reduces printhead clogging. Stability temperature 130°C: Disperse Blue BR stable up to 130°C is used in thermosol dyeing, where it maintains dye integrity and fastness. Solubility 12 g/L in water: Disperse Blue BR with solubility 12 g/L in water is used in dye dispersion formulations, where it achieves rapid dissolution and minimal residue formation. Light fastness grade 6: Disperse Blue BR with light fastness grade 6 is used in sportswear manufacturing, where it provides long-lasting color retention under UV exposure. Dispersibility >95%: Disperse Blue BR with dispersibility greater than 95% is used in exhaust dyeing processes, where it ensures stable suspension and reduced agglomeration. Heat resistance 180°C: Disperse Blue BR with heat resistance up to 180°C is used in automotive textiles, where it maintains color stability during thermal processing.

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    Certification & Compliance
    More Introduction

    Disperse Blue BR: True Value From a Chemical Manufacturer’s View

    Understanding Disperse Blue BR in Everyday Production

    In the world of dyes, Disperse Blue BR stands out for the consistency, color depth, and reliability we’ve been able to achieve by refining both raw material sourcing and our own process controls. We don’t simply buy intermediates in bulk and blend them on site. We start with selected aniline and nitrobenzene, overseeing their transformation through each reaction stage, adjusting parameters based on our chemists’ real observations instead of figures from spreadsheets. This hands-on watchfulness is why the hues and tone strength stay stable batch after batch—a key promise to fiber producers, whether working with polyester, acetate, or their blends.

    We produce Disperse Blue BR following the C.I. 56 segment, targeting applications where reproducible color matters more than quick turnover. Textile mills push their equipment hard today, and the pressure on them to avoid downtime from batch-to-batch inconsistencies is real. Often, dye lots appear similar at first glance, but when subject to hard washing or prolonged high-temp processes, subtle shifts in tone or fading reveals shortcuts taken by resellers and repackers. In our experience, controlling reaction time and maintaining optimal dye bath balance produces a granule that resists dusting and delivers complete dispersion without settling issues, which echoes in less machine cleanup for our customers.

    The Chemistry Behind Our Approach

    Many dye manufacturers keep their chemistry close to the vest, but sharing the actual hurdles helps buyers understand what they’re really getting. Disperse Blue BR relies on complex coupling reactions where even small excesses of raw materials alter final shade and solubility. Early in our operation, we learned that skipping a single filtration step or sacrificing particle wetting leads directly to chlorinated specks or too much foam in the final application. Consistent purity stems from paying as much attention to the washwater as to the finished granules. We actually conduct on-line purity checks—not just batch endpoint validation—which flags deviations in real time.

    Typical specifications include finely-controlled particle size, within a 0.2~2.0 micron range; we rarely see clumps above that threshold leaving our facility, since unchecked agglomeration fouls packing lines in downstream textile mills. Our technical department reviews every lot for both mass tone and reduction tone, so customers receive full color index and lightfastness data with every batch—not theoretical ideal numbers, but results that come directly from their production conditions.

    Beyond Standard Dispersions: Differences With Other Disperse Blues

    Plenty of confusion arises in the market between variants of “Disperse Blue,” especially since generic traders interchange trade names to pad catalogs. Experience shows that Disperse Blue BR consistently covers synthetic fibers more intensively and produces less staining on natural materials—an advantage primarily for those running mixed-fiber lines. Compared to common options like Disperse Blue 56 or 60, BR brings higher build-up at lower liquor ratios, making it better for deep shades alongside energy savings, because shorter cycles produce the same results.

    Our formulation deliberately controls for by-product content during diazotization, so the end product barely leaves trace residue on machinery. This cuts both the risk of machine scaling and color tainting in subsequent dye cycles—a point often overlooked by distributors not familiar with long-term factory maintenance. Traders dealing with Disperse Blue 183 or 79 may offer similarly labeled colors, but feedback from large polyester plants shows that poor extraction and residuals force additional machine washes, subtracting from real-world economy. We continually tweak dispersant blends based on these field reports, preventing clogging in high-throughput jets or padding baths—a detail that looks trivial in paperwork but eats hours off an actual shift if neglected.

    Applications And Real-World Use

    Whenever our partners run polyester or acetate lines, speed and clarity rank as top concerns. Disperse Blue BR excels in hot dyeing, high-pressure jets, or atmospheric machines, giving stable penetration without streaking or uneven build—the kind of reliability that keeps downstream workflow on pace. Large commodity dyehouses, smaller custom textile units, and even yarn-dye operations tap BR for both solid shades and blends.

    Its easy, quick bath dispersion is no accident. Particle wetting happens during our own ball milling under controlled humidity, not simply from bulk surfactant additions after-the-fact. That detail helps with bleeding resistance when used alongside reds and blacks, preventing unwanted purpling or washout. Textile finishers wanting sharp navy or blue-black shades turn to this formula precisely for its consistent outcome, even after repeat cycling with harsh finishing agents or softeners.

    In mix formulations, its compatibility with other disperse dyes comes from our dispersant balance, which is constantly adjusted based on application feedback. Some older blue dyes break down or migrate when exposed to concentrated acids or alkali during after-treatments; Disperse Blue BR resists this, minimizing unwanted migration or dulling—again, based on lab verification in real application runs, not just theoretical claims.

    What Real Consistency Looks Like: Batch After Batch

    Receiving regular feedback from mill floors, not just back-end salespeople, brings us closer to our actual users. Our product testing doesn’t stop with our own QA lab. We keep in touch with partner dye houses that put BR through extended pilot runs under varied liquor ratios, checking for stability not just in fresh water but recycled streams as well.

    During peak production, we frequently get queries about batch shade drift. Each month, our technical staff reviews both instrumental and operator-assessed panels from customer lines, measuring not only delta E values but noting the subjective acceptability by the color matchers on site. We know how much real production depends on peace of mind; if a single roll or batch fails, hours stack up in rework and boil-offs. That’s why our on-the-ground tech team stays in contact to advise on tweaks for bath chemistry or liquor ratios, and why we carry out sample dyeings in partnership with users rather than just providing standard instruction leaflets.

    Reliability, From Materials To Delivery

    The genuine difference between real chemical manufacturers and repackagers shows up not just in final product quality but in how well delivery and paperwork integrate. Our staff works directly with logistics operators to prevent moisture pick-up or mechanical damage during shipment—a key step for a dense granular dye where humidity can clump product before the customer even opens a drum.

    Traceability is baked into our process from lot numbers tied to exact shifts of production. If a customer ever finds an issue, we can check back not just to a day, but to a particular lot of each raw material, and use our records to find root causes and act. We view this as the backbone of long-term manufacturing, especially in rapidly moving global textile markets where regulatory and sustainability demands tighten every season.

    Distributors and traders often skip over these issues. We find that our own clients—often managers and shift supervisors with years of practical experience—care deeply about whether each delivery matches the assurances we give. We keep our supply chain responsive so adjustments in order size, packaging, or formulation can be made quickly, as needed, not months after the fact. In the dye sector, that’s the groundwork for actual trust, not just brochures.

    Environment, Compliance, And Safe Use

    Plant safety and regulatory compliance form the baseline for our operations. Every lot of Disperse Blue BR meets strict controls for banned amines, formaldehyde, and heavy metals, because textile buyers today push accountability upward through their whole chain. Accreditation under relevant textile standards is only the start: we regularly update our procedures and documentation to keep ahead of changing international requirements. Environmental teams at major spinning mills appreciate the low COD (chemical oxygen demand) profile and minimized volatile content given off during dyeing and drying.

    We treat on-site effluent by breaking down organic colorants at source, reusing as much water as possible, and maintaining strict separation of process and rainwater systems. During audits by large international apparel groups, our process transparency—showing exactly where Disperse Blue BR waste streams go—tends to be the deciding factor for repeat contracts.

    Awareness of occupational exposure matters too. We train our line staff on dust minimization and closed-handling systems, not because regulations say so, but because everyone in the industry has heard stories about dust irritation and allergies. Optimizing granule size counts as much for handling safety as for speed in customer batches.

    Why Disperse Blue BR Offers an Edge

    In the competitive textile dye market, speed alone doesn’t keep buyers loyal. The truth is, downstream production teams judge us by how the dye withstands variations in temperature, liquor ratio, and machine type. That’s the ground for real manufacturing value—delivering a product robust enough for dyehouses experimenting with new polyester and acetate blends, and steady enough to guarantee matching color with minimal reprocessing.

    Synthetic fiber coloration has changed rapidly. Pressure for deeper shades at lower energy input means dyes must withstand harsher mechanical and thermal cycles. More customers need to run shorter cycles while still demanding no loss in shade or durability. Our tracking shows that Disperse Blue BR keeps peak strength after repeated thermal exposures—exact requirements coming from in-field pilots, not only from our own technical center.

    We designed our process and quality control to match real-world workflows, not just regulatory worksheets. Our technical team regularly visits spinning and weaving partners to monitor how changes to bath pH, salt additions, and temperature ramps impact performance in practice—allowing us to adjust dispersant blends and process curve accordingly. That continuous improvement loop helps us stay on top of practical challenges, not just theoretical scenarios.

    Cost Versus True Value: Insights From Experience

    Pricing pressure is something every dye manufacturer faces, but shaving cost from critical process steps always backfires. Years ago, we encountered offers to outsource milling and packaging for quick savings. But every time, testing flagged greater dust generation, weaker shade, and unpredictable flow, leading to shipment recalls and higher long-term costs. Maintaining full control over our operation—right through to granulation and sealed packing—matters more than a few dollars saved upfront.

    Users swapping between brands often face problems like sudden metamerism, with finished goods rejecting color matches under different lights, or unexpected yellowing after heat exposure. Cutting corners on dispersant quality is a common reason for this. Our sustained investment in raw material and dispersant supplier vetting, along with internal parallel sample checking, continues to keep swap-out batches rare. Textile customers notice the difference in machine uptime; fewer stoppages and cleanouts tip workflows from just-in-time to on-time.

    Feedback Loops: Listening to Mill and Shop Floor Input

    Every manufacturer says they care about feedback. Our commitment takes a real-world shape: maintaining open channels not just for purchasing departments, but for the shift leaders and color matchers actually using our dyes. We’ve adjusted particle grind, shipment moisture tolerances, and even blend ratios in direct response to reports from mill floor operators. That level of flexibility only comes from running your own plant, not reselling what’s available on the open market.

    Technical teams from spinning and weaving units often offer insights the lab can’t generate—a new chemical in yarn sizing, a change in bath temperature due to updated machine specs. They’re the first to spot dye “slippage” or buildup on rollers. We treat these user field notes as primary data, integrating them into our next production rhythms rather than simply logging them. Success stories highlight not only color stability but less obvious gains, like reduced mechanical friction or steadier drying times, which often matter more to actual throughput than theoretical ROI.

    Meeting Future Demands: Next Steps for Disperse Blue BR

    Sustainability pressures keep climbing, and the social license to operate as a chemical manufacturer now means designing for both today and tomorrow. We’re piloting new intermediates and seeking even lower-energy synthesis steps, aiming to produce Disperse Blue BR on a reduced-waste footprint, without impacting color performance. Transparency in ingredient origin, energy usage, water recycling rates, and ecological impact isn’t an optional extra—buyers expect it, and we plan to keep delivering.

    Major changes in the recycled and biobased synthetic fiber industry will shape how dyes must adapt to less predictable substrates, and we’re running tests on these materials in parallel with classic polyesters—helping to preserve the positive reputation Disperse Blue BR has earned for reliability.

    With international standards constantly updated, ongoing internal and collaborative research keeps us ahead of new limits on hazardous content and effluent loading. Regular participation in technical conferences, feeding knowledge back to our production team, ensures that customers will find both current answers and forward-looking improvements in every batch.

    Conclusion: Manufacturer Experience Defines the Product

    Behind every drum of Disperse Blue BR, hands-on knowledge and direct control of both chemical process and logistics make a difference that reaches right through to the last meter of dyed fabric. Instead of generic, copy-paste products, we produce colorants shaped by real learning from customer floors and our own years at the reactor, always with a focus on stability, operational convenience, and honest traceability.

    No catalog entry or distributor flyer can replace the certainty that comes from working with a manufacturer invested in the entire chain, from raw feedstock to late-night troubleshooting calls. Buyers seeking true value—not just a low upfront cost—will find our approach in line with the realities and pressures of modern textile dyeing.

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