Products

Blue GR-E Disperse Blue 81

    • Product Name: Blue GR-E Disperse Blue 81
    • Alias: blue-gre-disperse-blue-81
    • Einecs: 228-879-1
    • 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

    539376

    Product Name Blue GR-E Disperse Blue 81
    Chemical Class Disperse dye
    Color Index Number C.I. Disperse Blue 81
    Appearance Blue powder or granules
    Molecular Formula C22H19BrN6O2
    Molecular Weight 463.34 g/mol
    Solubility Insoluble in water, soluble in organic solvents
    Primary Usage Textile dyeing (polyester and synthetic fibers)
    Melting Point 178-180°C
    Light Fastness Good
    Hue Bright blue
    Application Method High-temperature dyeing/thermosol process
    Stability Stable under normal conditions
    Storage Conditions Cool, dry place, away from sunlight
    Cas Number 12239-34-8

    As an accredited Blue GR-E Disperse Blue 81 factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

    Packing & Storage
    Packing The chemical "Blue GR-E Disperse Blue 81" is typically packaged in 25 kg fiber drums with inner plastic lining for moisture protection.
    Shipping Blue GR-E Disperse Blue 81 is shipped in tightly sealed, chemical-resistant containers such as fiber drums or plastic barrels, typically 25 kg each, to prevent contamination and moisture absorption. The packaging is clearly labeled with hazard and handling information, and conforms to international shipping regulations for dyes and industrial chemicals.
    Storage Blue GR-E Disperse Blue 81 should be stored in a cool, dry, and well-ventilated area away from direct sunlight, heat sources, and incompatible substances. Keep the container tightly closed to prevent moisture absorption and contamination. Use only approved containers, and store away from strong oxidizing agents. Ensure proper labeling and observe all safety regulations for handling dyes and chemicals.
    Application of Blue GR-E Disperse Blue 81

    Purity 98%: Blue GR-E Disperse Blue 81 with 98% purity is used in polyester fiber dyeing, where it achieves uniform shade depth and vibrant coloration. Particle size D50 2.5 µm: Blue GR-E Disperse Blue 81 with a particle size D50 of 2.5 µm is used in inkjet textile printing, where it delivers excellent dispersion stability and sharp image resolution. Light fastness grade 5: Blue GR-E Disperse Blue 81 with light fastness grade 5 is used in sportswear manufacturing, where it ensures long-lasting color retention under sunlight exposure. Heat stability 180°C: Blue GR-E Disperse Blue 81 with heat stability at 180°C is used in high-temperature exhaust dyeing, where it maintains color integrity and resists thermal degradation. Water solubility <0.01%: Blue GR-E Disperse Blue 81 with water solubility less than 0.01% is used in polyester filament production, where it minimizes staining and ensures clean processing lines. Dispersibility index ≥95: Blue GR-E Disperse Blue 81 with dispersibility index of 95 or higher is used in continuous dyeing operations, where it ensures consistent dye uptake and minimizes sedimentation. Molecular weight 470 g/mol: Blue GR-E Disperse Blue 81 with a molecular weight of 470 g/mol is used in microfiber textile finishing, where it offers superior fiber penetration and fast dye fixation. Residual content <0.5%: Blue GR-E Disperse Blue 81 with residual content below 0.5% is used in automotive upholstery dyeing, where it reduces waste and improves environmental compliance. pH stability 4-7: Blue GR-E Disperse Blue 81 with pH stability from 4 to 7 is used in blended fabric dyeing, where it enables process flexibility and stable color outcomes. Melting point 220°C: Blue GR-E Disperse Blue 81 with a melting point of 220°C is used in plastic coloration, where it provides heat resistance and prevents color fading during molding.

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    Competitive Blue GR-E Disperse Blue 81 prices that fit your budget—flexible terms and customized quotes for every order.

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    Certification & Compliance
    More Introduction

    Blue GR-E Disperse Blue 81 – A Closer Look from the Manufacturing Floor

    Understanding Blue GR-E: The Character of Disperse Blue 81

    The story of Blue GR-E Disperse Blue 81 begins deep in the heart of our manufacturing facility, where experience meets chemistry. This product, known throughout the textile world as Disperse Blue 81, stems from consistent development, countless pilot batches, real testing on full-scale machinery, and day-in-day-out dialogue with textile mills. Blue GR-E isn’t just a number in the dye shade books—its shade, strength, and dispersibility carry a reputation shaped by decades of direct production and field application.

    Every batch we make passes before the eyes of people who understand not only color but also what each process in a dyehouse demands. Disperse Blue 81 brings to the table what the modern market expects: deep blue shades on polyester, repeatable results across lots, and a reliability born out of careful raw material selection and process controls. Unlike many products on the market assembled from intermediates of varying origins, our Blue GR-E starts from a stable, in-house supply chain—this commitment anchors every consistency promise we make.

    Why Blue GR-E Disperse Blue 81 Remains a Production Mainstay

    Ask any dyehouse that works with polyester or its blends and the same dyes show up on their shelves time after time. Disperse Blue 81, especially in the GR-E model, stands out in these lineups because the finished goods speak for themselves. Polyester remains the king of man-made fibers, and Blue GR-E’s affinity for polyester makes it a staple in mass-scale apparel fabric dyeing, home textiles, automotive interiors, and even certain nonwoven industrial fabrics.

    Working with Blue GR-E day in and day out, we see its performance in pressurized dyeing machines as well as atmospheric jets. It achieves deep, rich blues with a balanced undertone, not veering toward purple or green, allowing accurate shade reproducibility across production weeks and seasons. It’s no secret in the factory: Blue GR-E brings a clean, concentrated pigment loading, which means our customers can count on optimal color build-up per gram, shaving costs and time off their recipes.

    How Batch Integrity Shapes End Results

    In our plant, production managers watch moisture content, pH, particle size, and dispersibility metrics with an attention honed by experience—not simply for lab report numbers, but because we’ve seen how tiny variations can ripple through a customer’s operation. Blue GR-E owes much of its market loyalty to the fact that it disperses rapidly, allowing shorter dyeing cycles and reducing the risk of unlevel dyeing or machine deposits.

    After years of working with both local and global buyers, we know that reliability isn’t just about large shipments. It means every drum maintains its characteristics from the first kilogram to the last scoop, whether stored for a week or a season. Many dyehouses have struggled with caking, floaters, or shade drift from generic batches sourced and traded through multiple parties. In house, we homed in on a controlled drying step and screened comminution to keep particle size within our own narrow tolerance, guarding both shelf stability and rapid, hassle-free dissolving in the dye bath.

    The Shades That Matter, Not Just the Numbers

    Textile designers often talk to us about their need for a blue that stays rich on fabric after high-temperature dyeing—nothing gray, nothing variable. Blue GR-E Disperse Blue 81 consistently gives deep, clear blue shades that meet buyers’ and brands’ fastness criteria. The backbone of our process—using purified intermediates and intermediates manufactured onsite under direct supervision—lets us maintain this clarity in hue, batch after batch.

    Fastness to washing and light shapes how garments appear after months of use or repeated launderings. After repeated batch validations, our Blue GR-E earns high grades under standard ISO and AATCC test methods for wash, light, and perspiration fastness when applied under recommended parameters. Our product has made its way not just onto price-sensitive fast fashion but into workwear, uniforms, and activewear, where color integrity can affect quality claims and brand reputation.

    Rigorous Quality – Built with the Customer in Mind

    Watching the dyeing industry transition from small-batch artisanal runs to huge continuous production lines, we’ve had to grow with our customers. Blue GR-E keeps up with modern needs by avoiding excessive frothing or speck formation, so machine downtimes remain rare and reproducibility becomes standard. Anyone running a jet dyeing machine or exhaust process at high liquor ratios can see the difference: no unexpected sediment at the end of the run, minimal need for added dispersing agents, and reliable shade on shade matching.

    We have relied on structured operator feedback loops as much as on chemical analysis. Many times, plant technicians report if a dye batch feels sluggish to dissolve, or shows up differently on control cards. These real-time conversations push us to maintain best-in-class grinding fineness and to invest in regular particle morphology analysis, using instruments beyond standard sieves—laser diffraction, electron microscopy, and other industry tools that let us guarantee each kilogram’s smooth dispersing power. That’s how shading, reprocessing, and return runs have dropped for our Blue GR-E customers.

    Environmental Responsibility – Benchmarks Beyond Compliance

    Few topics draw more attention than the chemical industry’s role in sustainable production. Blue GR-E’s story, as we write it, involves advances every year in cleaner synthesis, higher-yield reactions, and tighter emissions controls. We invested early in solvent recovery and in closed-system wet grinding lines, sharply reducing the footprint associated with traditional disperse dye production.

    The processes that go into the GR-E grade result in less byproduct and more efficient water usage than many older legacy models or bulk syntheses popular with third-party blenders. Readily biodegradable auxiliaries, reduced volatile organic discharge, and strict batch effluent monitoring sit at the core of our day-to-day. Textile brands working with pressure to pass RSL and ZDHC audits will find Blue GR-E’s formulation already stands up to these checks. With the right effluent treatment at the dyehouse, what comes out the pipe meets or exceeds current textile discharge standards.

    Direct User Support Rooted in Real Experience

    Part of our manufacturing process involves direct interaction with dyehouse technical teams, both at initial sampling and full-scale rollout. This vertical integration—factory to user—came out of necessity during the earliest years, when inconsistent shade builds and machine compatibility plagued much of the dye market. We found that half the customer problems boil down to subtle process tweaks: liquor ratio, pH, hold times, or dispersing agent adjustment.

    We back every shipment of Blue GR-E with accessible, human technical support. Our teams have sat face to face with operators in hundreds of mills, tweaking macros in automatic dyeing recipes when something looked off under a light box. These collaborations have given us insight into what matters most to end-users: no sticky dye residues, stable dye suspensions, and easy mixing under both hard and soft water conditions. Resulting process refinements have become part of the standard Blue GR-E spec.

    Specification Consistency – More Than Numbers on a Certificate

    We do not believe in simply matching a commercial standard once and calling it a day. Every Blue GR-E batch leaving the plant comes checked against our in-house spectral libraries and actual production performance data, cross-referenced against major customer control cards. Spectrophotometric matching alone doesn’t guarantee success—real fabric panels come off our trial dye vats for visual confirmation under multiple light sources.

    Customers using Blue GR-E have come to expect tight tolerance on shade, strength, and dispersibility, not only because we set internal QC standards but because every deviation in daily runs costs time and money for everyone along the chain. Global brands and regional converters both rely on our lot-to-lot shade tracking system, which not only archives QA records but ties them to root causes when variations arise—be it a hot summer in the raw material warehouse or a minor change in pH control during precipitation.

    Key Differentiators from Commodity Disperse Blues

    The market abounds with disperse blues in grades claiming compatibility with industry standards. Not all are built alike. From real-world users, we often hear about false shade starts—batches that look promising on paper but drift in hue during production, or products blended with lower-cost impurities, leading to instability in dye baths. Our Blue GR-E holds its shade not just under lab-scale conditions but across the harsh cycles of industrial machines.

    Taking a closer look, one finds that many competing blues struggle with sedimentation during long-liquor dyeing, or generate excess foam and scum, causing equipment downtime and loss in yield. By focusing on particle fineness, controlled dye crystal growth, and exacting purification steps, Blue GR-E avoids these pitfalls. It remains stable in both high-pressure and atmospheric applications, works efficiently at recommended dyeing temperatures, and recovers well between machine runs.

    We have designed our production flow so we hold key intermediates in-house, free from swings in supply chain quality that often plague generic grades. This means Blue GR-E reaches customers with the same formulation, color value, and shelf-life profile every time. Ingredient traceability covers every lot, from the first chemical batch to the finished drum loaded on the truck, supporting accountability through direct records, not just batch numbers scribbled in a ledger.

    Performance Where It Counts: Actual Mill Operations

    Those who have run reactive or direct dyes on cellulosic fabrics might be new to the quirks of polyester dyeing. Over the years, we’ve watched customer teams shift from one dye to another, sometimes chasing lower prices, sometimes seeking higher build. The lessons are usually the same: batch stability and reproducibility in the finishing department count as much as any upfront saving. Blue GR-E performs day in and day out; fewer seconds, cleaner rinses, repeatable shades, and less need for shade correction drives bottom-line results.

    Our customers regularly come back sharing stories of tough runs—rush orders, tricky blends, difficult water chemistry. Blue GR-E’s dispersibility helps these teams power through, from initial wetting to final wash-off. As polyester blends evolve—spandex, microdenier, cationic modifications—Blue GR-E keeps pace. Years of on-the-floor technical trials mean our product matches current retail color cards and holds up under pre-treatment and finishing processes like calendaring, anti-pilling treatments, and enzyme washes.

    Solutions Born from the Factory Floor, Not the Catalog Page

    Over the years, we have solved bottlenecks not from study alone but from wading into production halls to see problems firsthand. Issues like foaming, bath instability, or slow pick-up fall away when process variables and dye properties work together. We have worked with teams in dyehouses in climates ranging from humid monsoons to dry winters—the adaptability of Blue GR-E’s dispersibility and dusting profile have been proven across such challenges. Factory managers have appreciated fewer filter cleanouts, steady pump operation, and less downtime for cleaning.

    Fabrics processed with Blue GR-E also spend less time in the reprocessing queue, as operators achieve pass rates faster even on blended substrates. Complex orders calling for precise color matches under customer-specified D65, TL84, and CWF lighting run more smoothly since our production mimics these conditions during final shade approval. Large-scale upholsterers and sportswear suppliers who run broadloom dyeing or rapid-cycle jets find Blue GR-E fits seamlessly into automated dosing setups, further minimizing operator involvement while maximizing productivity.

    Continuous Improvement Driven by User Input

    As a manufacturer, our work is never done. Regular feedback comes in from facilities running everything from small cabinet dyeing units to massive overflow jets. We keep improvement cycles alive by integrating feedback on edge cases—dyeing performance on textured filaments, static build-up, even subtle variations in dosing accuracy on the shop floor.

    We have modified filtration protocols, updated packaging liners, and tweaked granulation at user request. Logistic teams appreciate the dust-reducing bag inserts and moisture shields we added after learning about climate-specific transit risks. These steps may seem small, but over tens of thousands of kilograms, they save resources and headaches on the user end—another reason Blue GR-E stands apart from lower-cost, high-variance blues.

    What Blue GR-E Disperse Blue 81 Brings to Today’s Market

    Many in the industry look for dyes that fit existing machine parameters, color-matching systems, and factory environments with minimal disruption. Blue GR-E meets these expectations, letting producers dial in their recipes with less need for auxiliary adjustments. Transitioning from basic materials to finished goods, Blue GR-E delivers vibrant blue with process control touchpoints—easy to monitor, quick to adjust.

    Those who purchase directly from us can reach out for sampling runs, troubleshooting, and process optimization tips. Requests for shade cards or fair color swatches are answered from our in-house color library, grown over years of production and countless shade matching sessions with textile clients. This continuity—from sample to scale—is what separates a true manufacturer from the parade of traders and resellers.

    Meeting Regulatory and Safety Demands Head-On

    The world of industrial dyes has moved rapidly toward tighter compliance and product stewardship. Extended supplier audits, product disclosure demands, and international shipment documentation now form the industry baseline. Our team keeps current SDS, regulatory disclosures, and test results up to date and accessible, making it easier for customers to comply with the evolving standards—be they regional, national, or international.

    Each Blue GR-E shipment details both the chemical composition and recent safety test results conducted under real lab and application conditions. Testing covers not only the final dye, but potential contaminants, byproducts, and processing aids, helping downstream users remain confident that new waves of regulatory change—like those governing azo content or heavy metal levels—won’t sideline their goods unexpectedly.

    The Long View in Blue – Built for Generations of Change

    Textile chemistry circles back on itself. Entire dye classes have come and gone, technology leaps have shortened process times and changed the face of global fabric trade. Though markets shift, reliable, high-purity disperse dyes remain foundational. Blue GR-E represents not just a dye, but a set of lessons and outcomes engineered through real-life use, continuous improvement, and a willingness to roll up our sleeves with every batch.

    For those looking for blue shades that deliver value, depth of color, shelf-life stability, and process ease, Blue GR-E stands as a trusted workhorse. Our teams, from production engineers to logistics schedulers, remain focused on one thing—making sure every shipment lives up to the standards that built its reputation. It’s a product shaped by the needs of modern textile producers and an unwillingness to settle for anything less than the consistency and quality we demand for our own production lines.

    This is Blue GR-E, standing ready not as a generic offering, but as the sum of years of know-how, teamwork, trial and error, and customer-driven progress. We continue to back it up with hands-on service, technical insight, and a factory’s worth of pride in every drum that leaves the line.

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