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HS Code |
147611 |
| Product Name | Direct Brown D3G |
| Chemical Class | Azo dye |
| Cas Number | 2429-74-5 |
| Appearance | Brown powder |
| Solubility In Water | Soluble |
| Molecular Formula | C26H20N6Na2O8S2 |
| Molecular Weight | 670.58 g/mol |
| Application | Textile dyeing |
| Light Fastness | Moderate |
| Ph Range For Application | 6-8 |
| Storage Conditions | Cool, dry place |
| Melting Point | Decomposes before melting |
As an accredited Direct Brown D3G factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Direct Brown D3G is packaged in a 25 kg net weight fiber drum, securely sealed with an inner polyethylene liner for safety. |
| Shipping | Direct Brown D3G should be shipped in tightly sealed, clearly labeled containers to avoid moisture and contamination. Store and transport it in a cool, dry, and well-ventilated area, away from incompatible substances. Follow relevant local and international regulations regarding the handling and shipping of chemical dyes. Use appropriate protective packaging. |
| Storage | Direct Brown D3G should be stored in a cool, dry, and well-ventilated area, away from direct sunlight and sources of ignition. Keep the container tightly closed and clearly labeled. Store away from incompatible substances, particularly strong oxidizing agents and acids. Use corrosion-resistant containers and avoid moisture to prevent caking and degradation of the dye. Follow all local regulations for chemical storage. |
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Purity 95%: Direct Brown D3G with a purity of 95% is used in cotton fabric dyeing, where it ensures uniform color penetration and high wash fastness. Stability Temperature 120°C: Direct Brown D3G with a stability temperature of 120°C is used in textile printing processes, where it maintains color integrity under heat. Molecular Weight 600 g/mol: Direct Brown D3G with a molecular weight of 600 g/mol is used in viscose fiber coloration, where it provides superior substrate affinity and brilliant shade consistency. Water Solubility 35 g/L: Direct Brown D3G with water solubility of 35 g/L is used in rapid dye bath preparations, where it enables faster dissolution and efficient workflow. pH Stability Range 5–8: Direct Brown D3G stable in the pH range 5–8 is used in mixed fiber blends dyeing, where it assures color reliability in varying bath conditions. Light Fastness Rating 5: Direct Brown D3G with a light fastness rating of 5 is used in curtain and drapery manufacturing, where it offers enhanced resistance to fading over prolonged exposure. Particle Size 2 µm: Direct Brown D3G with a particle size of 2 µm is used in ink formulations, where it delivers smooth dispersion and prevents clogging in printing equipment. Melting Point 210°C: Direct Brown D3G with a melting point of 210°C is used in high-temperature textile applications, where it enables dyeing without degradation. Viscosity 24 mPa·s: Direct Brown D3G with viscosity 24 mPa·s is used in liquid dye solutions for yarn coloring, where it ensures consistent flow and application precision. Salt Tolerance 10 g/L NaCl: Direct Brown D3G with salt tolerance of 10 g/L NaCl is used in bulk textile processing, where it allows for efficient dye uptake in saline environments. |
Competitive Direct Brown D3G prices that fit your budget—flexible terms and customized quotes for every order.
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Direct Brown D3G has been a staple for textile dyeing since earlier generations of colorants first hit the market. Sitting at the intersection of simplicity and functional reliability, this product makes itself known in the textile sector for its ease of use and strong shade reproducibility. Our production line sees the ebb and flow of many direct dyes, but D3G remains a consistent favorite among industrial clients who prize stable color strength and straightforward handling.
In our own day-to-day experience, Direct Brown D3G enters the process as a rich, earthy brown powder. Workers appreciate how the granule size supports fast mixing in both warm and room temperature conditions—no elaborate pre-treatment or homogenization steps are needed. The dye disperses quickly, whether introduced in a jet dyeing system, paddle machine, or a classic open vessel. That time-savings can mean a real difference at industrial scale where efficiency and batch-to-batch consistency directly hit the bottom line.
Direct dyes work by physically adsorbing onto the fiber, forming a bond that survives washes and sunlight better than one might expect for their class. D3G achieves dependable results on cellulosic fibers such as cotton, viscose, and blended fabrics without the complex application process that some reactive or vat dyes demand. Our technicians commonly see D3G used across woven shirting, work uniforms, canvas, and sometimes in specialty applications on paper and leather, where uniform color and medium wash resistance matter most.
Out on the production floor, we see the brown shade of D3G come to life under controlled temperatures, usually between 60°C and 95°C, depending on substrate quality and process parameters. Skilled operators tune their recipe for desired depth of shade. They monitor pH—usually aiming between neutral and slightly alkaline—to preserve fiber integrity and safeguard the distinctive warm brown that end-users have come to expect. We batch every lot for consistent solubility tests before packing so clients downstream do not have to troubleshoot dispersion.
Many years on the manufacturing side have shown us the importance of controlled purity, especially with direct dyes. The D3G output from our reactors runs through multiple filtration and washing steps before drying. By fine-tuning drying time and airflow, we keep moisture content low and reduce caking, so the powder stays free-flowing on the production line. Clients tell us that this feature helps reduce manual intervention at their feeding hoppers and storage bins.
The product’s particle profile makes a difference during automated and manual dosing, especially for factories scaling up from batch to continuous. Supervisors in these facilities have told us that this reduces color fluctuations. Unwanted agglomeration leads to streaks and patchiness on fabric, so keeping D3G dry and clump-free underlines its practical value beyond just chemical composition.
Compared with reactive, vat, or sulfur dyes, Direct Brown D3G stands apart for its straightforwardness. Reactive dyes, with their strong wash fastness, require expensive salt and alkali dosing, careful steaming, and longer rinsing to achieve similar color depths. Vat dyes involve sodium hydrosulfite reductions that not every dyehouse wants to manage due to reliability and environmental considerations. With Direct Brown D3G, the steps remain uncomplicated: weigh, dissolve, add to bath, and adjust temperature. A good percentage of our long-term customers work in settings where predictability and throughput trump theoretical maximum fastness.
Direct Brown D3G also contrasts sharply with pigment applications. Pigments often need binders and present their own set of process bottlenecks—surface preparation, drying, film-formation, and risk of rub-off. D3G, meanwhile, bonds directly with cellulosic fibers, removing several steps from the process flow and letting downstream fabric users skip additional fixing or post-processing. This simplicity makes D3G an attractive choice for mass-market workwear, table linens, and backgrounds for textile printing jobs.
We’ve seen requests come in comparing D3G to closely-related brown shades, such as Direct Brown RN or Direct Brown 2RL. In side-by-side mill trials, D3G consistently delivers a reliable, slightly warmer brown with higher degree of brightness under daylight conditions and modest fastness to washing and light. Textile engineers sometimes ask for tighter shade matching, but for most applications the subtle differences—slight variations in hue, depth, or migration—are only noticeable at close range. D3G regularly serves as a dependable workhorse in our product lineup, standing out for its balance of cost and performance.
Direct Brown D3G shows up in several segments, but the highest volumes ship to cotton and viscose processing houses. The dye's fast uptake and predictable exhaustion rates help textile plants commit to tight delivery schedules. Dyers from longstanding clients often point out that D3G allows stable color even when faced with small variations in incoming water hardness, which can be a persistent issue across municipal and industrial regions alike.
Paper mills occasionally request D3G for kraft paper and specialty packaging jobs. In those applications, the dye plays a dual role—adding brown color and improving fiber surface performance for printing or coating lines downstream. Our technicians have also helped clients fine-tune dosage for light leather finishes, and for coloring jute and other bast fibers where color uniformity is less critical than throughput and price.
In large-scale operations, supervisors prefer D3G over blends because there is less surprise during fabric inspections. A few technical managers told us about cases where imported blends varied so much between batches that entire production lots came out unsalable. With our D3G, the feedback comes down to three main things: consistent shade, stable packing, and friendly powder flow. Those factors keep abandoned production lots to a minimum and make planning easier for fabric inspectors and QC teams.
Every direct dye has its strong points, but Direct Brown D3G’s core advantage lies in its robust shade reproducibility and operational ease. At the plant, we refine our batches to ensure close lot-to-lot shade control. Customers running 24-hour shifts can dial in the shade once and expect it to match across months of production unless deliberately adjusted. This reliability becomes more important as dyehouses look for repeatable results using variable feedstocks and under pressure to limit rework.
Many dyers have asked about D3G’s ecological and workplace safety profile compared to other products. This is always a key point in any investment in process chemicals. Direct Brown D3G requires no hazardous reductants or high burden of auxiliaries. Practices such as batch pre-dissolving, careful powder handling, and exhaust ventilation fit within normal safety standards seen across the industry. In our own plant, operators carry out air sampling and spill control exercises regularly, and so far the long-term health and safety record for D3G remains clean.
D3G holds up well under field conditions, even in humid regions where seasonal swings in temperature and water quality mean extra headaches. Some dyes demand climate-controlled handling from warehouse to mixing tank, but D3G shipments rarely cause trouble with clumping or compaction, even after a long sea journey or storage in variable warehouse environments. That stability lets batch supervisors focus on their product rather than wrestling with finicky raw material.
Making high-quality dyes is an ongoing process. With each Direct Brown D3G batch, we analyze moisture, tint strength, and shade. Our lab staff does not just rely on machines; every batch goes through hands-on testing across various fiber systems to confirm what the spectrometer shows us matches what workers see on real materials. This not only provides feedback for internal troubleshooting but ensures that what we ship works as expected, straight out of the bag, no matter the client’s site conditions.
Large-volume textile operators have told us about the headaches caused by variable dye consistency—color corrections, overtime, need to re-dye fabric. We have taken those complaints into the lab. Over the years, process changes on our end—stricter wet cake washing, improved temperature controls, closer grind-size monitoring—have led to a more robust Direct Brown D3G. We keep logs of feedback and apply client experience towards every batch. If a specific requirement pops up, we have the flexibility on our production line to run custom filterings or meet unique packaging requests.
Transport and warehouse partners appreciate that D3G does not cause dust or odor problems. The powder packs densely, reducing empty space and cost for shipping containers. Our technical support field crews who have visited dyehouses know that clean, easy-to-handle packaging saves time during physical inventories and reduces accidental spills. We work continuously to prevent caking or package leaks; regular inspection before shipment has cut down on the number of returns or client complaints each year.
Supply chain partners and eco-certification groups have signaled the need for dyes that support lower water and energy use. Direct Brown D3G lines up well on these fronts. The short dyeing cycle and lower process temperatures—compared with more intensive vat or sulfur dye processes—support mills that track their water, chemical, and energy consumption. Finished goods clear effluent testing benchmarks, provided mills meet recommended dosing rates and adopt basic water treatment. D3G’s straight process path means less water spent on running, scouring, or stripping, reducing both cost and environmental footprint.
As demand for more sustainable fashion and home goods grows, we see increased pressure for supply chain traceability. Each D3G batch from our facility ships with documented production logs detailing raw material sources, operators, and key process points. Several end users have told us that this transparency helps them qualify for “green” product audits and meet export requirements in Europe or North America. While direct dyes, as a category, might not yet reach the durability of some advanced dye classes, D3G’s efficiency and traceable quality appeal to buyers with practical sustainability targets.
Our engagement with downstream recyclers has highlighted how D3G-colored fabrics can re-enter fiber recovery streams without introducing complex chemical residues. This plays a role when mills participate in closed-loop or recycled cotton programs. While no dye is perfect, D3G rarely triggers issues during reclamation or sorting compared to certain heavy-metal containing dyes. Cleaner reclamation means fewer obstacles for green manufacturers and more options for forward-looking brands.
Industrial dyeing always brings its share of challenges. We have seen that with Direct Brown D3G, much of the focus falls on process control inside the dyehouse—temperature, pH, and material movement. With regular feedback from plant managers, we continue to update our technical guidelines so that less-experienced shift supervisors can achieve consistent results. The best success stories come from sites that couple D3G’s process-friendly chemistry with disciplined operational practice.
Color fastness is a point raised by some users in high-end applications. D3G performs well in general-direct dye standards, but buyers working on premium garments or outdoor textiles sometimes ask for improved wet rubbing or sunlight resistance. In those cases, we suggest evaluating post-dye cationic fixatives, which boost fastness but bring their own process tweaks and cost factors. Overdyeing with reactive or pigment finishing sometimes crops up as a solution, but most mainstream mills prefer to stick with D3G’s cost-effective processing model and work within its established fastness profile.
Sourcing of base raw materials for D3G, like many organic dyes, can fluctuate depending on upstream chemical feedstock pricing and transport availability. To keep supply steady, our purchasing team works with long-term partners and keeps robust safety inventories in plant warehouses. This ensures steady output even in volatile markets and lets our customers plan ahead without risk of sudden disruption.
Looking out across the market, dyehouses and processors face increased scrutiny from regulatory bodies. Our QA and compliance teams stay on top of shifting local and global rules concerning azo content, heavy metals, effluent discharge, and worker safety. Each D3G shipment runs through both in-house analysis and, where needed, third-party validation, to safeguard compliance across major export markets. Clients tell us this keeps their own product approvals smoother and builds downstream trust between fabric producers and brand buyers.
Direct Brown D3G has stood the test of time, despite waves of newer product introductions. We see this because it solves real operational problems without adding unexpected costs or process complications. Its shade, process flexibility, and ease of storage combine to make it a straightforward choice for textile and paper facilities, especially those who cannot afford the risk of complicated dyeing chemistry or supply interruptions.
We have learned over years in this business that simple, reproducible products matter more than flashy claims or cutting-edge chemistry in core commodity runs. Technicians, operators, and managers want a dye they can run confidently, order again, and count on to fit within established process guides. That is what Direct Brown D3G represents across its many loyal customers.
From the earliest days of direct dyestuffs to today’s energy- and resource-conscious manufacturing, D3G remains a preferred tool for fabricators who know that minimizing surprises in the dyehouse means greater success at every stage, from raw cotton bale to finished goods shipment. In responding to the daily needs of real-world production—simple handling, reliable color, and stable supply—Direct Brown D3G has earned its place as a solution trusted by generations of textile workers and managers alike.