Products

Firm Elastic System - BROTAN - BHN Chromium-containing Synthetic Tanning Agent (Powder)

    • Product Name: Firm Elastic System - BROTAN - BHN Chromium-containing Synthetic Tanning Agent (Powder)
    • Chemical Name (IUPAC): Chromium(III) sulfate
    • CAS No.: 12001-88-2
    • Chemical Formula: C7H5O3S.Cr
    • Form/Physical State: Powder
    • Factroy Site: No. 1 Xuelin Street, Haining, Zhejiang, China
    • Price Inquiry: sales7@bouling-chem.com
    • Manufacturer: Jiangxi Brother Pharmaceutical Co., Ltd.
    • CONTACT NOW
    Specifications

    HS Code

    395136

    Product Name Firm Elastic System - BROTAN - BHN Chromium-containing Synthetic Tanning Agent (Powder)
    Appearance Light yellow to brown powder
    Main Component Chromium-containing synthetic tanning agent
    Chromium Content Specific percentage, typically around 20-25%
    Ph Value 3.0-4.0 (10% aqueous solution)
    Solubility Easily soluble in water
    Application Leather tanning and retanning
    Packing 25 kg woven bag with inner plastic liner
    Storage Cool, dry place away from sunlight
    Shelf Life 12 months
    Usage Dosage Recommended 4-8% based on shaved weight
    Function Enhances firmness and elasticity of leather

    As an accredited Firm Elastic System - BROTAN - BHN Chromium-containing Synthetic Tanning Agent (Powder) factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

    Packing & Storage
    Packing The packaging is a 25 kg multi-layer kraft paper bag, labeled "BROTAN - BHN Chromium-containing Synthetic Tanning Agent (Powder), Firm Elastic System."
    Container Loading (20′ FCL) Container Loading (20′ FCL): 16,000 kg (packed in 25 kg bags; 640 bags per container) for BROTAN-BHN chromium-containing synthetic tanning agent.
    Shipping The `Firm Elastic System - BROTAN - BHN Chromium-containing Synthetic Tanning Agent (Powder)` ships in secure, moisture-proof, industrial-grade bags or drums. Each container is meticulously sealed to prevent contamination and ensure product integrity during transit. Shipping complies with chemical transport regulations, including clear labeling, appropriate handling instructions, and full documentation.
    Storage Store Firm Elastic System - BROTAN - BHN Chromium-containing Synthetic Tanning Agent (Powder) in a cool, dry, and well-ventilated area away from direct sunlight, moisture, and incompatible materials. Keep the container tightly closed and clearly labeled. Avoid contact with acids and oxidizing agents. Use appropriate personal protective equipment when handling, and ensure emergency eyewash and wash stations are accessible nearby.
    Shelf Life Shelf life of BROTAN-BHN (chromium-containing synthetic tanning agent, powder) is typically 24 months when stored in cool, dry conditions.
    Application of Firm Elastic System - BROTAN - BHN Chromium-containing Synthetic Tanning Agent (Powder)

    Applications of Firm Elastic System - BROTAN - BHN Chromium-containing Synthetic Tanning Agent (Powder) in Industrial Manufacturing

    As the direct manufacturer of BROTAN - BHN Chromium-containing Synthetic Tanning Agent, we support multiple leather production industries relying on advanced retanning solutions. Below, we present specific downstream industrial application scenarios, focusing on the practical integration of this synthetic tanning agent in various manufacturing processes with complete details on compliance, formulation, processing stages, and final product outputs.

    1. Automotive Upholstery Leather Manufacturing

    Automotive leather producers apply BROTAN - BHN Chromium-containing Synthetic Tanning Agent during the retanning phase to meet rigorous mechanical strength and elasticity benchmarks mandatory for car interior leathers. By modifying the cross-linking density and improving tear resistance, automotive tanneries achieve uniform grain, controlled stretch, and color compatibility crucial for high-traffic seating and trim sections. This step ensures compliance with international automotive interior standards, supporting OEM and aftermarket requirements for durability, emission safety, and aging resistance.

    Industry compliance standards

    • ISO 9001:2015 Quality Management Systems for automotive suppliers
    • UNI EN 16484:2015 – Leather — Requirements for automotive interior leather
    • REACH Regulation (EC) No 1907/2006 (chromium VI content limits & SVHCs)
    • OEM-specific standards such as Volkswagen TL 226, Ford WSK-M2D419-A

    Typical usage ratio

    • 1.0%–3.5% based on shaved weight, adjusted for required softness, fullness, and compliance with automotive physical testing protocols

    Downstream process integration

    • Retanning drum stage following primary chrome tanning and deliming, before dyeing and fatliquoring; ensures elasticity and resilience prior to finish coating

    Final product types

    • Automotive seat leather (grain and split)
    • Steering wheel leather covers
    • Interior door trim panels
    • Dashboard top layer leathers

    2. Footwear Upper Leather Production

    Footwear tanneries utilize the chromium-containing synthetic tanning agent to develop upper leathers with enhanced dimensional stability and controlled softness, tailored for high-stress, flexing applications often subjected to wear cycles and humidity shifts. Accurate addition ensures compliance with safety and ecological requirements typical for global shoe brands, and allows close grain correction with uniform retannage for optimal printability and lasting.

    Industry compliance standards

    • EN ISO 20345:2022—Personal protective equipment—Safety footwear
    • LWG Leather Working Group Environmental Audit Standards
    • Oeko-Tex® Leather Standard (chemical safety certification)
    • Directive 94/27/EC (nickel and chromium VI release limits)

    Typical usage ratio

    • 0.8%–2.5% on shaved weight, depending on leather substance, desired firmness, and specific physical properties for fashion or safety footwear

    Downstream process integration

    • Second-phase retanning after washing/pickling, used together with vegetable extracts or resins as needed for grain tightness and color depth control

    Final product types

    • Dress shoe uppers
    • Boot and safety shoe upper leather
    • Sports footwear leather
    • Luxury sneaker leather

    3. Leather Goods and Accessories Manufacturing

    Manufacturers of leather wallets, belts, handbags, and other accessories depend on this specialized synthetic tanning agent to deliver dimensional stability, uniform handle, and defined embossing ability. Its controlled cross-linking profile allows precise shaping and die-cutting without risking edge cracking or grain loosening during stitching or assembly. Artisans and factories alike rely on consistent elastic properties and dye uptake for repeatable finishing results in premium leather accessories.

    Industry compliance standards

    • ISO 17075:2017 – Determination of chromium VI content in leather
    • ISO 11640:2018 – Leather—Color fastness tests
    • REACH compliance for restricted substances in leather goods
    • BSCI (Business Social Compliance Initiative) for downstream corporate buyers

    Typical usage ratio

    • 1.2%–3.0% on shaved weight, adjusted for accessory category, substance thickness, and targeted firmness

    Downstream process integration

    • Integrated at the retanning and neutralizing drum stage before bagging or splitting; tuned for precision finishing and lasting

    Final product types

    • Full-grain leather wallets
    • Handbag panels
    • Leather watch straps
    • Belts and small leather goods

    4. Furniture and Upholstery Leather Processing

    This chromium-based synthetic tanning agent plays a critical role in upholstery leather production for sofas, seating, and public furniture. It provides controlled elasticity, resistance to repeat deformation, and stable dye penetration, meeting the high standards required by international furniture manufacturers and contract furnishers. The process facilitates high-yield mechanical refurbishing, flame-retardant finishing, and large area panel matching, allowing sustained production for commercial and residential markets.

    Industry compliance standards

    • BS EN 15987:2011 – Leather—Requirements for upholstery leather for furniture
    • BS 5852:2006 – Flammability test requirements for upholstered furniture
    • California Technical Bulletin 117 – Fire test requirements
    • REACH Regulation on SVHC management (chromium VI content controls)

    Typical usage ratio

    • 1.5%–3.5% on shaved weight, determined by panel thickness, desired pliability, and resistance to abrasion or tear in end-uses

    Downstream process integration

    • Added during drum retanning between pre-fatliquoring and neutralization, ensuring even distribution and softness before mill or vacuum drying

    Final product types

    • Residential and commercial sofa upholstery leather
    • Office chair leather panels
    • Hotel and public seating coverings
    • Specialty contract furniture leather

    5. Glove Leather Production

    Producers of technical and fashion glove leathers take advantage of the unique cross-linking and fill attributed to this chromium-containing synthetic tanning agent, securing high tensile strength with minimal thickness while preserving tactile flexibility. Precise integration ensures consistent dye absorption, enhanced shape retention, and resistance to perspiration, satisfying export-grade inspection and wearer comfort requirements across diverse climates and intensive end-use conditions.

    Industry compliance standards

    • EN 388:2016 – Protective gloves against mechanical risks
    • ISO 20344:2021 – Test methods for safety gloves and components
    • REACH Regulation – chromium VI and SVHCs for contact safety
    • US CPSC consumer product safety requirements, where applicable

    Typical usage ratio

    • 0.8%–2.0% on shaved weight, fine-tuned based on glove type (fashion, sports, industrial), panel thickness, and required elasticity

    Downstream process integration

    • Mainly during retanning after pickling, before moistening and final finishing steps; critical for finesse and yield prior to pattern cutting and sewing

    Final product types

    • Safety and work gloves
    • Sports and equestrian gloves
    • Luxury dress gloves
    • Tactile touchscreen-compatible glove leathers

    Free Quote

    Competitive Firm Elastic System - BROTAN - BHN Chromium-containing Synthetic Tanning Agent (Powder) prices that fit your budget—flexible terms and customized quotes for every order.

    For samples, pricing, or more information, please contact us at +8615371019725 or mail to sales7@bouling-chem.com.

    We will respond to you as soon as possible.

    Tel: +8615371019725

    Email: sales7@bouling-chem.com

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    Certification & Compliance
    More Introduction

    Firm Elastic System - BROTAN - BHN Chromium-containing Synthetic Tanning Agent (Powder): Behind the Scenes at the Chemical Works

    Progress Rooted in Experience: Rethinking Synthetic Tanning with BROTAN - BHN

    After years spent in the heart of the tanning agent industry, meeting the real needs of today’s leather makers, we have learned to approach challenges with directness and practicality. Our BROTAN - BHN Chromium-containing Synthetic Tanning Agent in powder form draws on that legacy. This isn’t another product off the shelf. Every bag reflects a cycle of problem-solving, testing, and gradual tuning, based on what leather processors actually wrestle with on the shop floor.

    We don’t set out to follow every trend that sweeps through chemicals. In our view, tanning doesn’t need endless reinvention, just deliberate improvement where it matters. It needs agents that deliver reliable elasticity, robust aging resistance, and stable results, batch after batch. That became our benchmark for BROTAN - BHN: a firm, compact powder that shows clear thinking in its synthesis, its chromium content precisely adjusted—not excessive, not too lean, and without the unpredictable fluxes sometimes seen in hastily-formulated lots from other sources.

    What the Tannery Floor Needs: Real-World Product Development

    The day-to-day grind in a tannery brings up truth more clearly than any marketing claim. We have shaped BROTAN - BHN through repeated talks with technical teams, plant supervisors, and operators whose feedback rarely softens the edges. The recurring complaint about some synthetic tannins centers on difficult mixing, dusty dispersal, and wild swings in reactivity under certain temperature or pH conditions. Process interruptions cause costly ripple effects, and inconsistency in product performance means overtime, re-runs, and in some cases, entire batches lost or downgraded.

    Learning from these observations, we stuck with a balanced powder particle size that blends smoothly even in older mixing systems, minimizing airborne dust and reducing throat hazards for workers. No batch of BROTAN - BHN goes out without validation across several key parameters: solubility in standard processing water profiles, reliable chromium utilization, and consistent tanning effect both on hides and split leathers. Real-world testing proved that minor tweaks in powder treatment methods minimized clumping, opposed by some competitors’ agglomerated products.

    Performance Instead of Promises: Concrete Gains from Controlled Chemistry

    Small mistakes in formulating a chromium-based synthetic tanning agent can mean large consequences. Less attention paid to raw material purity, irregular blending cycles, or using off-specification chromium compounds—all of these show up later as mechanical faults in leather. At our plant, quality audits start from receipt of chromium salts and run through the final packing stage.

    We select our chromium carefully not only for legal compliance, but for the role different chromium species play in tanning kinetics. Less stable forms can lead to uneven penetration, leaving bright blue streaks or patchy, brittle areas in finished hides. BROTAN - BHN avoids this through a combination of screening and regular high-shear mixing to achieve a truly integrated product, where every scoop matches the last for concentration and effect.

    The distinctive advantage lies in the synergy between the synthetic backbone and the chromium center. Cheaper blends sometimes pile on fillers—starch, sodium sulfate, or overused dispersants—to cut costs, which dilutes performance and leaves residues in the waste stream. Our formula favors a crisp, uncluttered approach: enough binders for manageable handling, no more than necessary, and always declared for responsible users.

    Meeting Environmental and Regulatory Pressures Head-on

    Nobody in this line of work ignores the scrutiny now bearing down on chromium in leather making. News stories spread worries about chromium VI formation, regulatory spot checks, and the hunt for safer alternatives. These concerns sit at the heart of many conversations we have with long-term customers. Our team sees clear differences between accidental trace chromium VI formation—which can occasionally result from imprecise processing—and the kind of tightly-controlled product we ship.

    Every batch of BROTAN - BHN undergoes thorough analysis to detect unwanted byproducts. We don’t cut corners by using recycled or unfiltered chromium streams. Instead, we lean on proven purification steps to minimize the formation of hazardous chromium species during both the manufacture and recommended use of the tanning agent. Our powder is prepared in controlled lots and, unlike loose mixtures, we provide reliable documentation of origin, traceability, and batch integrity. We feel this honesty is owed to our clients and the families that depend on this industry.

    International standards such as REACH in Europe and safeguard measures in China and India have become more than a box-ticking exercise. Our plant backs every consignment with detailed analysis and risk assessments. Gone are the days when “off-the-record” practices could pass. For BROTAN - BHN, we have chosen to invest in staff training, external audits, and targeted development of less hazardous process steps, paying special attention to wastewater treatment and residue minimization.

    In the Hands of Users: Performance You Can See and Touch

    The best synthetic tanning agents prove their worth in the finished product, not just in lab reports. At technical demonstrations, clients bring forward side-by-side comparisons—panels tanned with standard agents next to those processed with BROTAN - BHN. The feedback has been consistent: higher tensile strength in the tanned leather, improved break resistance, and noticeably better wet-white color development.

    It takes a hands-on approach to trace the cause of these improvements. Our formulation builds on an optimized sequence of reaction stages, producing a fine yet robust chromium complex structure within the powder. The result is enhanced crosslinking with protein fibers, holding up against mechanical flexing and internal leather stress during manufacturing. Where some agents leave overstiff or brittle leather, often to compensate for weak tanning effects, users of BROTAN - BHN report a long-lasting, firm elasticity—crucial for shoes, saddlery, and technical leather goods.

    Another point regularly highlighted is the predictable dye uptake achieved after tanning with BROTAN - BHN. The tanning step shouldn’t clash with later dyeing and finishing operations. High-quality hides deserve a clear, uniform base, where coloring proceeds smoothly and the finished leather takes on sharp, vibrant hues with minimal patchiness. We see significant reductions in complaints about dye migration or uneven absorption when working within a process framework that starts with careful BROTAN - BHN application.

    How BROTAN - BHN Differs from the Old Guard

    Anyone in the field long enough knows standard chrome tanning agents and lower-grade synthetics bring certain headaches. Poor dispersion, erratic chromium content, or too much dust make cleaning and health compliance harder than it should be. The story repeats with old-fashioned powder blends—the same batch throws different results between seasons, or even from one side of a mixing drum to the other. Many trade blends mask these shortcomings under layers of marketing, but critical tanners notice the waste, the failures, and the lost hours rebuilding a failed lot.

    BROTAN - BHN, designed and produced in our own reactors, does not copy others’ formulas. Early on, we addressed notorious issues like sediment formation, thanks to years processing slurries and reviewing filter press cakes that should never have passed inspection. Our controls anchor every stage in physical, not just chemical, proof. That means granule size is checked by direct sieve analysis, not just eye and paperwork; solubility and pH performance are confirmed in actual process water from working tanneries.

    We also stepped beyond the minimal compliance offered by many agents in the same class. Our product line maintains tighter chromium and synthetic component tolerances, to avoid both under-tanning and over-chrome hazards. New entrants may cut cost by skipping stabilization cycles in their synthesis or using reclaimed reagents. We prefer the incremental investment—spending more time, labor, and resources to keep standards above legal minimums, producing a powder that is both easier to measure out and less likely to drift in composition over time.

    Supporting Sustainable Tanning: Challenges and Directions

    As long as consumers continue to demand leather, the need for responsible, transparent production will grow. We have seen industry workshops where the right questions finally take center stage: what happens to tanning residues, how does agent selection shape long-term waste treatment, and who bears accountability for product support after shipment. Our approach remains focused on direct engagement—not just once a year at conferences, but every month in real requests from both old and new customers.

    A common theme is the search for agents that don’t just reduce hazard at the end, but actually limit byproduct formation during each process step. BROTAN - BHN demonstrates this through lower sludge formation compared to some conventional chromium blends, which in turn makes subsequent filtration, dewatering, and disposal more manageable. Field studies in active plants reveal maintenance cycles lengthen and water system fouling events decline compared to historical norms.

    “We make what we use” has become a core practice in our operation. Plant managers and line workers alike regularly participate in reviews, often challenging our R&D chemists with hard questions. Is this particle size small enough to go fully into solution without caking? Does it work with both high and low salinity process water? Can the powder be dosed in open vessels without excessive respirable dust risk? These challenges reinforce our ongoing development work and keep us from lapsing into complacency.

    Traceability has shifted from catchphrase to working standard. For BROTAN - BHN, we document every ingredient lot, every process adjustment, and every bulk shipment. If questions arise, our records do not run cold after a few months—they track who made what, where, and why. Factory audits routinely uncover batch-level details to address customer queries and to preempt supply chain uncertainty, especially in light of ever-tighter environmental controls and periodic regulatory inspections.

    The Human Impact: Safer, Simpler, More Reliable Leather Processing

    Time and again, industry news reminds us that the future of tanning depends not just on chemistry, but on workplace safety and transparency. Reports of health incidents due to chemical dust exposure or burns from accidental misapplication are not as rare as anyone would like. Our switch to a denser, less dusty powder type for BROTAN - BHN arose from listening to processing line staff, many of whom flagged the threat to their lungs and skin from ultrafine particles. Regular air monitoring in our blending and packing area, together with user feedback on the shop floor, confirmed reductions in incident rates following our adjustment. This proves the value of frontline worker input.

    Reducing risk starts not only with how a product is made, but in how it is handled in real production conditions. We ship in lined, sealed bags with clear opening protocols, and our in-house safety teams advise bulk users in proper dosing and ventilation practices. No product, no matter how advanced, can offset unsafe workplace conditions, so we encourage direct dialogue and offer guidance based on what we see working elsewhere—not as a sales pitch, but as a shared industry priority.

    Why Our Perspective as a Manufacturer Matters

    Too often, tanning agent commentary comes from those at a remove—distributors, traders, catalog writers—who never set foot inside process rooms or tailored a formula to a batch-limited hide run. From the manufacturing side, our view is unfiltered by distance. Each process challenge, from batch upsets to process water shifts, lands first on our internal teams, long before any customer sees the effect. This accountability tightens our standards: what isn’t good enough for our own test lines never finds its way to market.

    Our R&D chemists, many of them former tannery technicians themselves, shape development priorities by tracking evolving use cases. They know the pain of changing climate, fluctuating water quality, and pressure to maintain throughput while trimming waste. As the push for lower-impact, more traceable supply chains grows, we understand our primary role isn’t to act as a trader. We stay responsible for every ton of BROTAN - BHN.

    Looking Forward: BROTAN - BHN as a Standard, Not a Compromise

    The market is crowded with chrome-based synthetics and blends, sometimes promising but too often disappointing in execution. Tanners faced with thin margins and rising compliance costs cannot afford the disruptions caused by erratic product behavior. From our perspective as a manufacturer who controls every stage, BROTAN - BHN stands as proof that careful chemistry, relentless testing, and attention to user feedback can set a new standard.

    Leather processors’ expectations continue to shift toward materials that not only meet technical benchmarks, but support safer and more sustainable working conditions. Our approach banks on consistency: not only in powder homogeneity, tanning effect, or chromium compliance, but also in how we engage with the people who depend daily on this product. Each update, improvement, or change comes directly from lived experience, not a spreadsheet or faddish demand.

    The story of BROTAN - BHN is not built on empty boasts or speculative claims. It is the track record of repeatable results, of detailed technical support, and of honest, sometimes difficult conversations with the tanners who keep this industry alive. This makes the work worth doing and forms the real backbone behind every shipment we make.