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HS Code |
977694 |
| Chemical Name | Direct Green BN |
| Cas Number | 3441-14-3 |
| Molecular Formula | C34H26N10Na2O8S2 |
| Molecular Weight | 824.75 g/mol |
| Appearance | Green powder |
| Solubility | Soluble in water |
| Color Index Number | 30285 |
| Dye Class | Direct dye |
| Ph Range | 6-8 (1% solution) |
| Light Fastness | Moderate to good |
| Application | Textile dyeing (cotton, viscose) |
| Odor | Odorless |
As an accredited Direct Green BN factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Direct Green BN is packed in a tightly sealed 25 kg fiber drum with inner polyethylene liner to prevent moisture and contamination. |
| Shipping | Direct Green BN should be shipped in tightly sealed containers, protected from moisture and direct sunlight. It must be stored in a cool, dry, and well-ventilated location, away from incompatible materials. During transit, proper labeling and documentation are required according to applicable chemical shipping regulations to ensure safety and compliance. |
| Storage | Direct Green BN should be stored in a tightly closed container, in a cool, dry, and well-ventilated area away from direct sunlight and sources of ignition. Keep it separate from incompatible substances such as strong oxidizers. Store at room temperature and avoid exposure to moisture to prevent caking or degradation. Proper labeling and adherence to safety guidelines are essential for safe storage. |
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Purity 98%: Direct Green BN with purity 98% is used in textile dyeing, where it ensures uniform and vibrant coloration of cotton fabrics. Molecular Weight 600 g/mol: Direct Green BN with a molecular weight of 600 g/mol is used in paper tinting, where it provides enhanced chromatic strength and dye penetration. Particle Size ≤5 μm: Direct Green BN with particle size ≤5 μm is used in ink formulations, where it enables smooth dispersion and consistent print quality. Stability Temperature 120°C: Direct Green BN with stability temperature 120°C is used in high-temperature dye baths, where it maintains color integrity without degradation. Water Solubility 50 g/L at 25°C: Direct Green BN with water solubility 50 g/L at 25°C is used in aqueous dye applications, where rapid dissolution increases production efficiency. Light Fastness Grade 4: Direct Green BN with light fastness grade 4 is used in upholstery textiles, where it provides improved resistance to fading under sunlight exposure. Melting Point 280°C: Direct Green BN with melting point 280°C is used in thermal transfer printing, where it ensures thermal stability and prevents dye sublimation. pH Stability Range 5-9: Direct Green BN with pH stability range 5-9 is used in leather coloration, where consistent hue is maintained across variable processing conditions. Viscosity 10-15 mPa·s: Direct Green BN with viscosity 10-15 mPa·s is used in water-based paints, where optimal flow behavior supports even film formation. Monodispersity Index ≤0.1: Direct Green BN with monodispersity index ≤0.1 is used in specialty coatings, where it ensures uniform pigment distribution and gloss consistency. |
Competitive Direct Green BN 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.
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Tel: +8615365186327
Email: admin@ascent-chem.com
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In the industrial dye sector, hands-on experience often reveals what numbers on a datasheet cannot. Having worked for decades in the manufacture of dyestuffs, especially for cellulose and fiber applications, we have seen real-life challenges that customers from textiles, paper, and specialty industries encounter time and again. Direct Green BN stands out because it addresses everyday problems with clarity and consistency, not just with bold claims.
Direct Green BN takes the center stage among green dyes due to its dependable color profile, compatibility with common application methods, and adaptable concentration grades. Chemists and process engineers looking for performance often look past generic “green” dyes after they’ve run test batches and seen things like poor wash-fastness, inconsistent coloring on viscose or waste generation due to poor solubility. This is where careful control over our manufacturing—every filtration, every blend, each drying stage—translates into meaningful benefits for our customers.
Working at scale in production means more than blending powder and shipping bags. Our Direct Green BN, commonly known by its Color Index reference Direct Green 26, meets tight expectations for color shade, lightfastness and exhaustion on cellulose-based fibers. Every ton we output contains active dye content in controlled proportions, keeping metal impurity levels low to avoid adverse reactions in downstream processes like finishing or resin coating. We stabilize particle size through precise milling and dry-granulation, which helps production lines avoid clogging and ensures even dyeing whether operating continuous or batch processing setups.
Direct Green BN goes through repetitive batch tests for soluble content, moisture percentage and bulk density. Technicians check every lot under standard illuminants and control for factors such as tone shift under different pH and temperature profiles. This sort of process diligence prevents surprises in the dyehouse and reduces waste—two key concerns for industrial users facing narrow margins.
Most descriptions talk about “cellulosic substrates” and “direct dye processes,” but on the shop floor, what usually matters is: Will it fix? Will it bleed? Can we run longer without cleaning filters or tanks? In commercial-scale textile dyeing—especially with cotton, rayon, or linen—Direct Green BN has become a reliable choice for exhaustion and pad-steam dyeing systems. It bonds to the fiber at high efficiency, reducing the amount washed out at the end of the process. For paper manufacturers, the dye distributes evenly even at high speeds or on recycled pulps, producing packaging or printing grades with a deep, lasting green hue.
Industrial laundries and garment over-dyeing in bulk find that Direct Green BN can survive repeated washes, which is no small feat in the workwear, medical textiles, or home furnishings sectors. The dye also shows resilience against sunlight and atmospheric degradation, making it suitable for textile grades that require outdoor exposure—awnings, banners, and sports equipment covers. Beyond the obvious uses, we’ve also seen innovative customers use Direct Green BN in seed coatings to identify blends, and in specialty inks and marker fluids where regulatory approval for textile contact is necessary.
Customers often approach us having encountered uneven coloration, poor penetration on thick or twisted yarns, or runoff issues on mixed-fiber blends. Direct Green BN was engineered with a neutral shade and controlled dispersibility to address these precise problems. Its solubility characteristics work across a broad range of pH, enabling producers to shift process conditions without needing to overhaul the recipe for every lot.
On the ground, this means a dyehouse can run a longer batch or switch between substrate types—say, carded cotton and regenerated fibers—without extensive washout or re-tuning. That flexibility pays back in less downtime and fewer rejected lots, especially in high-throughput operations or where shade-matching for seasonal fashion and branding is strict. It is not engineered as a mass-market, “one-size-fits-all” additive but as a well-targeted solution for users who are serious about reliable color strike-through and operational repeatability.
We get asked how this dye distinguishes itself from other green dyes—both in direct and reactive classes. Our manufacturing approach centers on purity of raw inputs and control over secondary components, which keeps heavy metal or salt impurities well below the detection threshold that causes regular headaches in continuous dyeing systems.
Comparing Direct Green BN to reactive greens, for example: direct dyes go onto the fiber largely by physical adsorption rather than chemical bonding, so you gain quick exhaustion at relatively low temperature and milder alkaline conditions. Reactive dyes may lock in more strongly, but they typically demand more expensive auxiliaries, tighter temperature control, and batch-to-batch shade tracking that can frustrate fast-moving operations. In the case of Direct Green BN, users enjoy low-foaming, consistent absorption with easy rinsing, which reduces both water and energy loads over time.
Versus other similar direct greens, our process steps out from standard commodity approaches. Many green dyes on the market are prone to bronze shifts, muddy undertones, or early fading in sunlight—this comes down to poor intermediate mixing and lack of spectral monitoring across the visible range during production. At our facilities, technicians spot-check every lot for reflectance at 540-560 nm, the sweet spot for a clean, saturated green. What this means for users: finished goods don’t come back with subtle shifts that escape casual inspection during production and only surface in end-use.
Sourcing from a direct manufacturer brings the sort of technical partnership that traders or brokers cannot supply. Our technical team spends as much time on the factory floor as in the lab, troubleshooting shade variance or assessing bleed rates in actual customer systems. If a dyehouse operator sees irregularity in shade pickup between lots, we step in, analyze the exact cause—whether water hardness, surfactant interference, or equipment calibration—and then adjust the next batch at our end. This feedback loop with end users creates stable performance across changing process conditions and variable raw material quality, which arises often in large-scale textile and paper applications.
Training and process support mean that dye usage rates rarely have to climb to compensate for weak lots or unexpected impurities. For users doing high-dosage or continuous operations, our direct involvement during switchover periods helps reduce otherwise costly trial-and-error. Not only do we keep exhaustive batch records, but we also trace back every input involved in our syntheses—so if a raw material source starts drifting from spec, deviation gets corrected well before it shows up as a problem in your goods.
Customers increasingly challenge manufacturers to provide not only performance but also transparency and responsibility. With global supply chains under scrutiny for environmental and worker safety, we keep batch testing protocols and routine reporting up to date with the most demanding textile eco-standards—OEKO-TEX, ZDHC, and country-specific regulatory frameworks. Achieving compliance isn’t about ticking boxes, it is about engineering the process around absence of restricted substances, safely containing exhaust streams, and ensuring that employees on the dye floor are confident handling the product daily.
Direct Green BN meets strict standards for formaldehyde content, aromatic amine breakdown products, and persistent organic pollutants. Water discharge from our facility is air-cooled, filtered, and monitored for trace colorants, keeping environmental burden to a minimum. These operational details matter—customers increasingly run vendor audits or command detailed supply-chain provenance, relying on us not just for the certificate, but for a proven track record of good practice.
For dyehouses in regions with water use restrictions or mandatory effluent treatment, Direct Green BN’s comparatively high exhaustion efficiency means less colored runoff and reduced purification costs downstream. By stabilizing granule size and flow properties, dusting in the workplace drops, helping employers meet occupational safety targets for both workers and housekeeping. In regions where customer or consumer brands demand full lifecycle disclosure, our product sheets trace all the way back to the intermediate source, with access to Safety Data Sheets and audit trails—making regulatory compliance a smooth, credible operation.
Every manufacturer faces evolving customer needs and shifting regulations. Staying ahead means experimenting in our own pilot lines—installing new membrane filters, testing synthetic routes that cut down intermediate waste, and working hand-in-hand with fiber manufacturers using next-generation regenerates and blends. Direct Green BN’s formula has been continuously improved as these shifts arrive. For example, as viscose suppliers switched to cleaner process chemistry and as knitwear producers demanded deeper shades with lower liquor ratios, we adjusted dye loading and recalibrated particle dispersal control.
Open communication with mill operators and maintenance engineers guides our process improvement. If a dye batch foams up and trips an overflow sensor on a continuous dyer, we don’t just issue a technical bulletin. We run accelerated simulations and adjust surfactant carriers and drying processes to minimize the likelihood of recurrence. Every ounce of feedback we receive—good, bad, or neutral—feeds into formulation reviews, equipment upgrades, and training of our production teams.
Long-term reliability comes from this cycle of bench-to-line-to-market adaptation. Our customers know that, as their demands increase for lower environmental impact, lower consumption rates, or novel coloring effects, Direct Green BN’s formulation is never considered “finished.” Every major revision is field tested at customer lines before being released as a standard specification. Both our pride and our accountability as a direct manufacturer come from this loop of constant improvement, paying close attention to what line managers and process engineers actually face.
A point customers often debate is the “cost versus benefit” of buying from a direct manufacturer as opposed to resellers or anonymous bulk blenders. Direct Green BN represents years of process optimization, waste reduction, and real-time application support, which means buyers can count on controlled shade standards, consistent active content, and technical partnership—for marginally more than the cheapest generic. In practice, users save labor time on shade corrections, spend less on cleaning and filter replacement, and see fewer off-spec shipments. This matters more than headline price tags.
We have seen clients who lean on price comparison alone return later, after experiencing unpredictable lots from traders: filters clogged by oversized particles, dye cakes that never dissolve, or shade drift in seasonal production. The real picture emerges in machine downtime, returns, and lost throughput, not just the price per kilogram. As a direct factory, we guarantee this continuity because our reputation in the market sits atop years of technical dedication—regular investment in color monitoring, skilled process chemists, and open-book plant tours for serious clients who want to see their partners in action.
Industrial customers want partnerships that last longer than a single project. We don’t just ship a container and forget. Our technicians walk entire supply chains—yards, pulp mills, printers—identifying pain points, cross-referencing compatibility across a range of sizing, softening and finishing chemistries. This hands-on knowledge, gained from being the factory behind the dye, gets invested back into process tweaks and customer support.
Manufacturing is a dialog, not a monologue. Direct Green BN represents the collective insight of every plant operator who’s run a production line into overtime because a dye failed rinse testing, every process engineer who sent us a question at midnight after a shade drift, and every compliance officer who required proof of trace substances. Our real-world approach—testing, listening, improving—means that every kilogram shipped has been through a system honed for practical performance, not just laboratory claims.
Many chemical manufacturers operate at arm’s length from their products and users, watching issues appear only weeks after batches leave the warehouse. Our facility closes this loop by embedding service and feedback expectation into the product itself. Every challenge our users report—whether a slight variation in solubility or an unexpected interaction with a softener blend—becomes the starting point for process correction and new quality tests. Customers benefit not only from constant improvement but also from knowing they have a voice at the source.
This direct relationship is what sets Direct Green BN apart, above and beyond its technical merits. Customers looking for more than a green dye—seeking stability, ongoing support, and process-driven progress—find a manufacturer whose hands are as much in the daily work as theirs.