Acid Brown GB

    • Product Name: Acid Brown GB
    • Alias: Brown 4
    • Einecs: 247-098-3
    • 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

    348343

    Cas Number 10114-60-4
    Chemical Name Acid Brown GB
    Synonyms Acid Brown 14
    Molecular Formula C18H14N3NaO3S
    Molecular Weight 375.38
    Appearance Brown powder
    Solubility In Water Soluble
    Dye Class Acid dye
    Color Index Number 21010
    Ph Range For Application 4-6
    Usage Textile dyeing (wool, silk, nylon)
    Lightfastness Moderate
    Melting Point Decomposes
    Storage Conditions Keep in tightly closed container

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

    Packing & Storage
    Packing Acid Brown GB is packaged in a 25 kg high-density polyethylene (HDPE) drum with secure, tamper-evident sealing, labeled for chemical safety.
    Shipping **Shipping Description for Acid Brown GB:** Acid Brown GB is shipped in tightly sealed, corrosion-resistant containers, typically plastic drums or fiberboard boxes with liners, to prevent moisture and contamination. The chemical should be stored and transported in cool, dry conditions, away from strong oxidizing agents. Handle according to standard safety and environmental regulations for dyes.
    Storage **Acid Brown GB** should be stored in a cool, dry, and well-ventilated area, away from direct sunlight and incompatible substances such as strong oxidizers. Keep the container tightly closed and properly labeled. Avoid exposure to moisture to prevent clumping or degradation. Use corrosion-resistant containers and ensure that emergency spill cleanup materials are readily accessible nearby.
    Application of Acid Brown GB

    Purity 98%: Acid Brown GB with 98% purity is used in wool dyeing processes, where it ensures deep color penetration and uniform shade consistency. Molecular Weight 350 g/mol: Acid Brown GB with a molecular weight of 350 g/mol is used in silk textile printing, where it provides excellent dye uptake and vibrant color saturation. pH Stability 2-5: Acid Brown GB stable at pH 2-5 is used in leather finishing applications, where it maintains color integrity and resists fading under acidic conditions. Particle Size 20 microns: Acid Brown GB with a particle size of 20 microns is used in paper coloration, where it delivers smooth dispersion and even pigment distribution. Solubility High: Acid Brown GB with high solubility is used in inkjet ink formulations, where it enables rapid dissolution and prevents nozzle clogging. Melting Point 210°C: Acid Brown GB with a melting point of 210°C is used in synthetic fiber dyeing, where it allows efficient dye fixation at elevated processing temperatures. Light Fastness Grade 5: Acid Brown GB with light fastness grade 5 is used in automotive upholstery fabrics, where it offers robust color durability against prolonged UV exposure.

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    Certification & Compliance
    More Introduction

    Acid Brown GB: A Reliable Solution for Precision Dyeing

    Understanding Acid Brown GB from the Manufacturer’s Perspective

    Producing Acid Brown GB in our facility gives us direct experience with both the strengths of this product and the real challenges it solves for end users. Unlike distributors, our people watch every batch evolve from raw material to finished goods. This hands-on process helps us pinpoint nuances that might escape attention in the wider market. In practice, every lot carries the story of managing moisture, pH, and reaction time, which directly shapes the way Acid Brown GB performs when it reaches a dyehouse or laboratory.

    Acid Brown GB stands apart from other acid dyes because it balances both color constancy and ease of handling without needing heavy salt or temperature loads. Commonly shipped as a dark brown powder, its model number often appears on shipping manifests as C.I. Acid Brown 14. Our years of refining grinding methods and filtration steps result in a product that disperses quickly in water—avoiding the issue of clumps at the mixing stage. Although the specifics of each dyeing job vary, feedback from production partners points toward Acid Brown GB’s reliable behavior in continuous dyeing and semi-continuous systems.

    Physical Qualities and Consistent Performance

    Handling bulk shipments of Acid Brown GB sets certain expectations in production. For example, experienced dyers appreciate how this dye dissolves cleanly, even when working with hard water. We monitor lot-to-lot purity using methods like high-performance liquid chromatography, which helps us keep the main component above 98%. Our powder’s particle size falls between 40 and 80 mesh—a balance that sidesteps dust control issues while still pouring and mixing easily. These fine details might not matter to a casual trader, but as a manufacturer, we see how dye particles behave within fiber and note how smooth blending prevents streaks or uneven zones after fixation.

    Water-solubility marks a clear difference with many direct and basic dyes. Acid Brown GB breaks up in water at room temperature, so operators can skip lengthy pre-heating cycles. In our own plant, even when running double shifts in humid conditions, this dye keeps its shelf stability for over a year, so storage rarely causes caking or color drift. Over countless batches, color strength holds steady—a point confirmed with reflectance spectrophotometers in our QA lab. A typical shade produced on wool or nylon reaches deep brown under neutral pH conditions, while the undertone shifts as acidity rises. Operators who work in piece dyeing or carpet applications see this in practice every day.

    Precision in Application: Meeting the Demands of Textile Dyers

    Acid Brown GB works most effectively in the textile sector, specifically with wool, nylon, silk, and their blends. Our customers report efficient pick-up rates and standout fastness properties when following our recommended protocols. In practice, dyers manage between 0.5% and 2.0% shade depth on mass, based on the darkness required. This flexible dosage lets mills adjust for subtle hues or strong, rich browns needed in rug and garment dyeing. We have observed—both in our test house and from regular client visits—how this dye keeps a steady hand under both exhaust and continuous processes.

    One of the main assets of Acid Brown GB is its reproducibility, even in high-turnover operations. Long-running carpet mills need tight color matching between batches and lots. Our team uses spectrophotometric comparisons to control tone drift, keeping ΔE below 1.5 in standard applications. This degree of consistency stands behind the trust our mill partners place in us. Thanks to our constant raw material screening, Acid Brown GB resists minor process changes, so if a steam chamber runs two degrees higher, or the water’s calcium content fluctuates, the final fabric shade remains predictable.

    Challenges with Compatibility and How We Address Them

    The real performance of a dye emerges at the intersection with other chemicals. Acid Brown GB works with a wide family of sulfonic acid-based dyes, but it runs into compatibility issues with certain leveling agents or retarding agents. As a manufacturer, we track these interactions in our pilot lab, mixing Acid Brown GB with representative auxiliaries from other supply streams to watch for precipitation or unstable hues. Over years, we have mapped out which dispersants or surfactants interfere with shade or migration, and adjust our own product’s recommendations accordingly.

    Some acid dyes drop out of solution or lead to spotty dyeing when exposed to hard water. To overcome this, we build in extra controls during the purification stage, so even in high-mineral environments, solubility remains unaffected. Instead of simply handing over technical data, we spend time in client printrooms and dyehouses, running bulk tests to ensure Acid Brown GB’s resistance to such operational pitfalls. This kind of fieldwork points out issues that do not appear in the QC datasheet, and reinforces our choice of consistent, low-ash raw materials.

    Setting Acid Brown GB Apart from Other Acid Dyes

    The acid dye landscape is crowded, with several brown dyes competing for similar applications. We see product managers selecting Acid Brown 14 or GB because it meets shade targets that Acid Brown 48 or 75 cannot match without mixing, especially in deep dyeing of luxury fibers. Our records show that Acid Brown GB displays stronger light fastness on wool than many similar shades, typically hitting 4–5 on the Blue Wool Scale in lab and factory tests. For garment specialists, this means less color change after months of wear.

    Unlike some alternatives, Acid Brown GB does not require pH extremes. Dyers working on protein fibers avoid the problem of fiber damage that shows up after aggressive acid treatments. Our long-term users in the carpet trade have measured less migration after steaming, and fewer complaints about muddy or uneven tones after batch dyeing. Since we control purity and granulation internally, mills see fewer finishing problems, such as sticky residues on jets and winches. These details matter in daily operation but often get lost in the broader discussion.

    Environmental Factors and Safety Practices

    Every industrial batch leaves a trace. Our plant’s effluent control includes strong in-line filtering and post-reaction pH neutralization, which keeps AOX and heavy metal content well below the regulatory limits. Acid Brown GB’s chemistry permits us to avoid adding metals like chromium or copper in the finishing step, so the resulting dye fits with eco-label platforms in Europe and Asia. We hear from fashion textile clients aiming for Oeko-Tex compliance or equivalent standards. This dye consistently qualifies, barring cases of contamination from external components in the dye bath.

    We approach worker safety not just by placing warning labels, but by direct experience on the floor. Dust suppression systems surround our blending lines, while everyone handling open containers uses N95 masks and flushes any spills with buffered wash cycles. Decades of operation make it clear—dye-related respiratory concerns drop off when exposure controls match the fine, free-flowing grade we keep as standard. By producing Acid Brown GB ourselves, we see firsthand how shifts in process affect both product and environment, and we invest steadily in closed-loop controls to keep both in line.

    Real-World User Feedback and Long-Term Improvements

    The best lessons come out of long-haul partnerships with mills and finishers. Technical teams in the field often push the capabilities of Acid Brown GB beyond our standard usage advice. For example, one leading mill experimented with cross-blends of Acid Brown GB and pre-metallized blues to craft bespoke variegated yarns. Throughout their tests, they reported deep take-up, sharp resistance to edge bleeding, and steady after-wash appearance without extra soaping or harsh chemicals. Their feedback drove us to tighten grinding size controls a couple of years back, a change that now benefits every other customer.

    We have observed commercial printers adopting Acid Brown GB for specialty silk applications due to its great clarity and purity. They push for transparency in every run, and any graininess stands out immediately. Even under the harshest steaming conditions, the dye holds both brightness and saturation, helping these printers maintain tight standards around premium scarf and tie production. These users send early warning signs if any lot slips from standard—our technical team tracks every complaint, matches it to batch data, and updates our processes to keep up with expectations.

    Down-to-Earth Solutions for Production Hurdles

    Anyone who works inside a dye plant comes to respect the unpredictable. There are days when a steam line leaks or supply chain delays push a switch in auxiliary recipes. Through these ups and downs, Acid Brown GB gives operators a certain resilience. If the mill runs slightly hotter or water chemistry veers off typical specs, this dye holds tone integrity over a wider range compared to some alternate brown acids. Technicians reach for it in tight timelines and short-batch orders since they do not have to stand over the bath—Acid Brown GB achieves full uptake with minimal tending.

    We have faced our share of setbacks. Some early lots, especially in the early years, suffered from grit left behind after incomplete milling or displayed fading under strong sunlight. Customers let us know directly—the feedback was swift and sometimes blunt, especially when key shipments landed during a surge. Those lessons led us to modernize milling methods, upgrade pigment pre-treatment lines, and draw up new specifications with every technical staff hire. As we closed old complaints, the calls shifted toward requests for new color blends or greener raw material sources, fueling our ongoing R&D investment.

    Lessons from End-Use Sectors

    Over the decades, Acid Brown GB users have clustered into several main segments: bulk wool dyers, high-end carpet manufacturers, niche silk printers, and some technical nonwoven applications. Each sector brings its own quirks. Wool dyers continually balance dye bath temperature, liquor ratios, and after-treatment routines. For them, Acid Brown GB means quick solubilization without surprises, even at scale. In woven carpet production, shade matching between lots must remain invisible across 1000 meters or more. Our tight in-plant controls, drawn from weekly spectrophotometric scans, support this requirement and build direct trust.

    Smaller orders often show up in the artisan textile and hand-craft fiber world. These creative users push Acid Brown GB for unique undertones, working with both weak and strong acid setups, painting directly onto yarn or small pieces. Their feedback, while sometimes unconventional, spotlights how this dye behaves outside classic factory lines—feedback which has driven several of our minor process tweaks. Mid-volume users in hosiery or athletic wear have noticed reduced migration after washing, which comes from our ongoing refinement in the purification process.

    Support and Continuous Improvement

    As a manufacturer, we see our responsibility as extending beyond the gate. After a truckload of Acid Brown GB heads out, our technical specialists often remain on call with partner mills around the globe. Field service visits catch recurring bottlenecks in mixing, dosing, or shade correction. Rather than letting repeated queries pile up, our support team logs, investigates, and closes the loop with process adjustments on the next cycle. Manufacturer-to-operator communication saves weeks or months that a middleman might lose in translation.

    Over time, some problems resist easy fixes. For example, certain finishing treatments in high-shrinkage textiles lead to dull browns with most acid dyes, Acid Brown GB included. We have responded by collaborating directly with finish chemical suppliers, building up a database of compatible conditioners and softeners to preserve color vibrancy. These adjustments and field-driven improvements distinguish Acid Brown GB from lower-grade imports that receive little technical follow-through once the sale closes.

    Addressing Market Shifts and Regulatory Demand

    The regulatory environment seldom stands still. Markets grow more demanding every year, with certifications and transparency requirements driving changes at the plant level. Acid Brown GB’s formulation lets us stay a step ahead—by avoiding heavy metals and persistent organic pollutants from the start, we align with both current and anticipated rules in export markets. This foresight reduces headaches for downstream mills seeking green-label approvals.

    In recent years, customer inquiries about the renewable or circular origin of raw materials have grown more frequent. Although Acid Brown GB derives from petrochemical feedstocks, ongoing work explores plant-based alternatives and greener auxiliaries for future versions. These initiatives do not disrupt established production for existing customers but prepare us for coming cycles of change in the industry. Our role as a manufacturer means we test each change in real world conditions, not just at the bench, providing a level of certainty rarely found in trading environments.

    Final Thoughts on Acid Brown GB’s Place in Industry

    Pouring each drum or bag of Acid Brown GB, our production teams know that real-world success shows on the shop floor and in the final textile, not just on the spec sheet. Years of close working relationships with mills, printers, and finishers have shaped our product far beyond earlier formulations. Our ongoing feedback loops, dedicated investments, and field experience make Acid Brown GB a repeat choice for operators who value both process stability and deep, lasting color.

    Whether entering a dye bath or hitting the final inspection table, Acid Brown GB continues to represent our commitment to manufacturing quality and partnership. From initial raw material screening to hands-on support in the field, we build value into every lot, continually learning from both challenges and successes. Each kilogram reflects lessons learned and direct attention to detail – which, in the end, matter most to everyone relying on our product.

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