Products

Soft Foam System - BRTA - RW Synthetic Tannin

    • Product Name: Soft Foam System - BRTA - RW Synthetic Tannin
    • Chemical Name (IUPAC): Sodium polynaphthalene sulfonate
    • CAS No.: 3431-82-1
    • Chemical Formula: C8H6O5SNa
    • Form/Physical State: Liquid
    • 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

    687966

    Product Name Soft Foam System - BRTA - RW Synthetic Tannin
    Physical State Powder
    Color Light brown
    Odor Mild
    Solubility Soluble in water
    Ph Value 1 Percent Solution 3.5 - 5.5
    Application Leather tanning and retanning
    Main Ingredient Synthetic tannin
    Storage Conditions Keep in cool, dry place
    Shelf Life 12 months
    Packing 25 kg bags
    Usage Level 1% - 5% based on pelt weight

    As an accredited Soft Foam System - BRTA - RW Synthetic Tannin factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

    Packing & Storage
    Packing The "Soft Foam System - BRTA - RW Synthetic Tannin" comes in a 25 kg blue HDPE drum with a secure, sealed lid.
    Container Loading (20′ FCL) Container Loading (20′ FCL) for Soft Foam System - BRTA - RW Synthetic Tannin: 80 drums, 200 kg net weight per drum.
    Shipping The **Soft Foam System - BRTA - RW Synthetic Tannin** is shipped in tightly sealed, chemical-resistant containers to prevent moisture and contamination. Packages are clearly labeled as industrial chemicals and handled according to international transport regulations. Appropriate documentation and safety data sheets are included to ensure safe and compliant delivery.
    Storage **Storage Description:** Soft Foam System - BRTA - RW Synthetic Tannin should be stored in a cool, dry, and well-ventilated area, away from direct sunlight, heat sources, and moisture. Keep the container tightly sealed when not in use. Store away from incompatible materials such as strong oxidizers. Ensure proper labeling, and avoid extreme temperature fluctuations to maintain product stability and performance.
    Shelf Life Shelf life of Soft Foam System - BRTA - RW Synthetic Tannin is 12 months in unopened, original packaging under cool, dry conditions.
    Application of Soft Foam System - BRTA - RW Synthetic Tannin

    Applications of Soft Foam System - BRTA - RW Synthetic Tannin in Industrial Manufacturing

    As the actual producer of Soft Foam System - BRTA - RW Synthetic Tannin, we support a range of industrial customers focused on flexible polyurethane foam production and allied sectors. This section highlights practical, verified downstream applications within the foam and allied specialty chemical industries, with details on compliance, formulation, process steps, and end products for each highlighted use case.

    1. Flexible Polyurethane Furniture Cushion Foam

    Furniture and bedding producers integrate this specialty tannin for its role as a reactive filler and cell opener, promoting soft touch, improved durability, and enhanced foam resilience in seating and mattress applications. Formulators adjust the tannin addition during pre-mixing with polyol blends to directly influence foam structure and processing characteristics, enabling specific performance targets within regulatory and market constraints common to domestic and contract furniture manufacturing.

    Industry compliance standards

    • ISO 5999 Polyurethane Flexible Cellular Materials — Specification
    • EN 1957 Assessment of the Durability of Bedding — Test Methods
    • BS EN 1021-1/2 Furniture Fire Safety (Cigarette & Match Resistance)
    • REACH Annex XVII (Restricted Substances in Consumer Products)

    Typical usage ratio

    • 0.5%–1.2% by polyol weight; adjustment depends on foam density target, hardness (Indentation Force Deflection), and open-cell requirement for end-use comfort

    Downstream process integration

    • Introduced at the polyol blending step before prepolymer formation; dispersed with other liquid or solid additives such as catalysts, colorants, and surfactants; reacts during foaming and curing to stabilize cell structure and regulate final texture

    Final product types

    • Furniture seat cushions
    • Mattress cores and toppers
    • Sofa and modular seating foam pads
    • Rebonded foam blocks for commercial upholstery

    2. Automotive Seating and Interior Foam

    Automotive interior system suppliers value the synthetic tannin for its contribution to lightweight foam formulations meeting strict emission and durability standards. Its presence fine-tunes reaction kinetics and cell size, ensuring consistent density and compressive properties crucial for automotive applications where crash performance and occupant comfort require close control. The additive delivers consistent quality under batch and continuous slabstock processes as specified by major Tier 1 automotive suppliers.

    Industry compliance standards

    • ISO 3795 Burning Behavior of Interior Materials in Vehicles
    • FMVSS 302 Flammability of Automotive Interior Materials (US)
    • IATF 16949 Automotive Quality Management System
    • OEM-specific restricted substance lists (e.g., GADSL)

    Typical usage ratio

    • 0.4%–1.0% of total polyol system, fine-tuned for cellular integrity, emissions, and tactile requirements per each vehicle platform specification

    Downstream process integration

    • Added directly to the polyol blend during feedstock metering; works with flame retardants and anti-scorch agents in continuous or batch foam equipment; ensures even reaction progression and cell structure in molded and slabstock foam parts

    Final product types

    • Automobile seat cores and comfort layers
    • Headrests and armrest foams
    • Door panel foam pads
    • Instrument panel energy-absorbing foams

    3. Footwear and Insole Flexible Foam Manufacturing

    Synthetic tannin finds application within technical footwear and athletic shoe manufacturing for its ability to control insole and midsole foam resilience, energy return, and long-term compression set. The filler supports fine control of foam microstructure, directly affecting the dynamic cushioning properties essential for both lifestyle and sports applications. Industrial formulators incorporate the tannin as part of proprietary blends, complying with performance and safety mandates set by global footwear brands.

    Industry compliance standards

    • ISO 20871 Footwear — Test Methods for Uppers, Linings and Insoles
    • EN 20344:2021 Personal Protective Equipment — Footwear Testing
    • OEKO-TEX Standard 100 (Textile & Leather Chemicals Safety)
    • Brand-specific Restricted Substances Lists (Nike, Adidas, etc.)

    Typical usage ratio

    • 0.7%–1.3% by weight of total polyol; optimization based on required rebound performance, static and dynamic compression properties, and climate aging resistance

    Downstream process integration

    • Blended with polyol and crosslinkers prior to prepolymer step; incorporated as part of high-shear mixing before in-mold or slabstock foaming; compatible with automated pouring and mold injection lines common in large-scale footwear factories

    Final product types

    • Comfort insoles for casual and athletic footwear
    • Midsoles for running shoes and training sneakers
    • Shock-absorbing layers in safety boots
    • High-resilience footbeds used in sandals and orthotics

    4. Technical Sound-Absorbing and Acoustic Foams

    Manufacturers of technical foam for acoustic insulation utilize this tannin to balance sound absorption and mechanical stability in open-cell foam panels. Its chemical functionality helps tailor pore structure, preventing cell collapse during high-porosity foam expansion and ensuring stable acoustic performance under long-term use in building, HVAC, and industrial noise control applications. Material integration occurs under stringent process and fire safety requirements set for construction and transportation sound insulation products.

    Industry compliance standards

    • EN ISO 354 Measurement of Sound Absorption in Rooms
    • ASTM E84 Surface Burning Characteristics (Building Fire Safety)
    • RoHS Directive (EU) on Hazardous Substances in Electrical and Electronic Equipment
    • LEED v4 VOC Emissions Standards (for building interiors)

    Typical usage ratio

    • 0.6%–1.5% of total polyol mass; level set to balance airflow resistivity, pore openness, and thermal aging resistance according to sound damping target values

    Downstream process integration

    • Dispersed in the masterbatch with surfactants and blowing agents ahead of foaming; critical for cell nucleation control during the expansion phase on both continuous and batch production lines; ensures cell stability under post-cure heat treatment

    Final product types

    • Sound-absorbing foam panels for wall and ceiling installation
    • HVAC duct liner and muffler foams
    • Engine compartment acoustic foams (automotive, marine, rail)
    • Room-in-room sound isolation blocks for recording/live venues

    5. Packaging Protective Foam Systems

    Producers of protective packaging invest in this synthetic tannin as a regulator of foam resilience, drop resistance, and shape memory in custom-molded and die-cut foam inserts. The additive influences cell configuration, offering cushioning and shock absorption for electronics, appliances, and specialty fragile goods. Adjustments in usage and integration are direct responses to customer drop-test protocols and international packaging safety standards.

    Industry compliance standards

    • ASTM D3574 Standard Test Methods for Flexible Cellular Materials
    • ISTA 6-Amazon SIOC Packaging Protocols
    • ISO 2230 Packaging Materials — Storage and Handling
    • REACH Regulation (for safe material composition in EEE packaging)

    Typical usage ratio

    • 0.8%–1.5% by weight in polyol phase; determination based on drop resistance certification for protected goods, geometry of foam insert, and recovery properties after repeated compression

    Downstream process integration

    • Introduced during polyol blend preparation before batch mixing with isocyanate; ensures uniform cell structure in custom-molded inserts by promoting slow, controlled cell opening; supports both manual and automatic foam shaping lines

    Final product types

    • Cushioning foam inserts for electronics shipping cases
    • Protective end caps and edge guards for household appliances
    • Precision cut foam trays for instrumentation and medical devices
    • Reusable shock-absorbing packaging blocks for sensitive goods

    Free Quote

    Competitive Soft Foam System - BRTA - RW Synthetic Tannin 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

    Soft Foam System - BRTA - RW Synthetic Tannin: Evolving Wet-End Chemistry for Modern Leather Production

    Introducing BRTA - RW Synthetic Tannin from a Manufacturer’s Perspective

    The BRTA - RW Synthetic Tannin grew out of years making wet-end chemicals for tanneries that do not have time or appetite for old problems. As a manufacturer, we decided long ago that chemical suppliers owe more than just an invoice and a drum. We know the daily grind in a tannery—machines humming, splits stacking, batches needing to run without surprises. Each kilogram coming from our plant bridges tangible demands inside the drum room and real-world challenges on the process floor, not just a page in a catalog.

    We developed this product with clear targets: build a soft foam system for chrome and pre-tanned leathers to get reliable fullness, handle, and consistent color yield without the sticky hands and mess that old vegetable and naphthol-based syntans tended to cause. Our own R&D team collected feedback from tanners who wrestled with issues like grain looseness, dye float, variable penetration, and the frustrations of inconsistent “run-to-run” results.

    How BRTA - RW Synthetic Tannin Moves the Needle in Tanning and Retanning

    Traditional vegetable tannins—mimosa, quebracho, chestnut—give plenty of bulk and character, but they also bring significant batch-to-batch variability and topping-off with every retan cycle. On the other side, many classic syntans tended to drift into over-dispersed, watery formulations that lost body unless paired aggressively with fillers, and often invited unstable foam break and product separation over time.

    BRTA - RW focuses squarely on stability and soft foam structure. You notice it the first time the powder hits water in the mix tank—no big clouds of dust, excellent dispersion, and the liquor stays homogenous from start to finish. We put our attention into the particle structure and reactivity; this means the product stays fluid and keeps its "working life" inside the drum, so even mid-shift adjustments can be made accurately.

    Leather makers used to worry about slow penetrations or float lines with older tannins. BRTA - RW, based on a highly engineered condensation route, penetrates evenly and reacts in synchrony with bath chemistry. That translates to less risk of waste and reworks. The tightness on the grain stays consistent, and both flat and foam retan drums show less float loss and better uptake, leaving a level handle and steady print post-drying—even when the process water fluctuates in mineral content or temperature.

    What Really Sets BRTA - RW Apart

    We do not shy away from discussing real process nuances. Unlike many shoestring syntans built for lowest cost per ton, BRTA - RW brings a tighter molecular range, and it has a correct recipe for balancing anionic charge with foamability. Chemically, we designed its sulfonated unit ratios to provide a reactive base that will not swell unevenly during retan—even in high-demand double-face cycles. Grain firmness gets fine-tuned, without clogging up pores or blocking dye migration. That brings out the best tone development and a manageable, soft, lively hand.

    You can see the difference most clearly during mass retan jobs. Through years of partnership with major footwear and upholstery producers, we saw the same problems—sticky foam layers, over-swelled grain, or collapsed structure on light leathers. With our product, the foam holds firm, and the yield from wet crust to finished leather matches capacity needs.

    BRTA - RW did not come off the shelf—each batch we make reflects our testbed's data from pilot drums, dyebath compatibility, and scale-up to actual production. The bulk density is dialed in for double-handling, so operators rarely complain about dust-up or “cake” at the bottom of feed bins. We grind and sieve each production lot to stay within a clear particle window, because we want switchovers during batch changes to go smoothly—no sticky clumps, no wasted scoop-outs, no guessing about reload volumes.

    Better Control, Safer Work, Less Waste

    Leather manufacturing faces intensifying challenges: water reduction, VOC mitigation, and cost pressures per square meter. With regulatory demands rising, we built BRTA - RW to handle lower liquor ratios without foaming over or destabilizing, and to minimize unwanted “over-tannage” that creates hard-to-dispose trimmings. In tannery after tannery, operators say that cleaner draining baths after retan mean they spend less time scraping foam, and more product stays in the hide.

    Worker safety plays a role as well. Standard tannin powders often trigger fine dust exposure concerns — sometimes right from the bag. With our anti-dust granulation, operators breathe easier, and drumroom cleaning is quicker. Less slipperiness means fewer falls, no streaks down drains, and operators can work their shifts with cleaner hands and safer floors.

    Versatility That Holds Up Under Real Tannery Conditions

    Tanners experiment with ratios all day, often chasing customer specs that change without warning. We designed BRTA - RW for predictable performance, whether you are running high float chrome retanning or pushing light “eco” formulations alongside syntan-lean runs. Whether using paddle or drum machinery, the product responds quickly and lets technicians make adjustments on the fly: tweak the float, check penetration, shift pH, or match a new base crust feel for top-grain or split selections.

    Direct feedback shaped our process too. We heard about issues with foam stability when switching to “low-salt” systems or reusing process water. In those conversions, many syntans either went flat too soon or gummed up dosing valves. Users of our BRTA - RW report steady foam persistence, predictable handling, and no sudden collapses—an edge when chasing higher yields or lean retan cycles.

    One challenge for us as a manufacturer: tanneries often move to lower drum speeds and higher float to cut process heat, but not every retan powder can follow that pace. The non-ionic base in our product means it reacts without slow spots, so color and fullness develop as planned. Tanners looking for more precise results with differing hide selections—sheep, goat, split bovine—find the structural balance suitable for both delicate and robust applications.

    Process Consistency and Predictable Dye Response

    BRTA - RW has a reputation for improving color yield and shade stability over time. Many tanners, especially those producing fashion footwear leathers, struggle with fluctuating hue or tone. In trailing tests within our pilot tannery, the foam structure of BRTA - RW delivered cleaner dye uptake and minimal “float lines.” Even under variable pH or reduced buffering cycles, the final leather cut showed levelness, which reduced re-dye or blending work in finishing rooms.

    Many plants using vegetable oils or older naphthol-based retans struggle when they lower retan time or push tighter float loads, often due to foaming instability and unwanted “resoftening” later in the cycle. Tanners using our product can run slightly shorter cycles, reclaim more liquor, and count on the reactivity to hold even as temperature and pH drift within safe process limits. The result is tanneries with less “fallout” during final cutting and less neighbor-batch variation.

    Environmental and Economic Plus Points

    Environmental stewardship is not just about ticking a box—it’s about avoiding hard-to-treat effluents and building process reliability. We incorporated lower-sulfur chemistry and minimized unreacted organics so that wastewater loads fall under increasingly strict discharge targets. What goes down the drain is less polluting, and the tanneries can monitor real chemical oxygen demand reductions in site trials.

    Our technicians noticed that processing with BRTA - RW requires less alkali “clean up” after retanning, so hide swelling problems do not escalate during neutralization and subsequent steps. That narrows finishing windows and helps keep chemical usage predictable from one lot to the next, helping with batch cost projections and planning.

    Another economic benefit: by avoiding animal-based fillers or labor-intensive recipes, tanneries streamline the dosing process. More product ends up incorporated, with less post-drum correction or re-neutralization. Production managers, under pressure to hit daily yield for finished crust, see better square meter output per kilogram applied, less shakeout, and fewer overtime retan runs.

    Customer Application Stories and Ongoing Support

    We don’t just hand over a datasheet and move on. Every year, our technical service team visits dozens of production floors, rolling up sleeves with tannery staff, discussing process tweaks and alternations that let BRTA - RW integrate with each unique line-up. From mid-sized family-run tanneries to highly automated European lines, the feedback is the same: clearer handling, fewer unexpected system upsets, and improved leather uniformity from split to top grain.

    We learn as much from user feedback as from our own labs. One South Asian tannery, running mixed chrome and wet white cycles, reported a major reduction in grain “flattening” and float loss after shifting to our system. Their plant supervisor summarized it best: “We saw less variation in fullness and a more manageable, soft touch, right from the retan drum.” Other tanners, focused on automotive or premium bag sectors, value the predictable, non-chalking grain finish and streamlined pH control before dyeing.

    Safe and Responsible Manufacturing Standards

    We stand by strict manufacturing practices. Every batch undergoes full traceability screening, and we adhere to current REACH standards for wet chemicals. We run our plant under ISO-aligned safety and emissions controls, not from obligation, but because our team lives near these plants and we want a legacy of clean, responsible production.

    Local partners visit our factory and see true hands-on QA—sampling, cross-tank checks, and continuous dust suppression at our packaging unit. BRTA - RW reflects what real production managers ask for: a stable, reliable product that respects the user, the process, and the environment.

    Continuous Improvement and Looking Ahead

    Every drumroom challenge opens new possibilities. We use every customer process cycle—every feedback call, every QC complaint, every mention of machine fouling or spotty uptake—to inform our next round of product tweaking and R&D. One improvement we made came directly from a tannery running 24/7 shifts, looking for cleaner dosing and less machine wear. In response, we further refined sieve grading and minimized friable fines to deliver a product that consistently pours and measures out cleanly, no matter how often the bin gets tipped or loaded.

    We will not chase lowest-cost shortcuts by cutting key active content or importing untraceable feedstock just to edge out a few points on the input cost—because every cut corner shows up in the foam structure, reactivity, and, ultimately, the hides on the cutting table. If new demands come—like vegan or biobased content—our team is ready with process pilots and open books, committed to authenticity and traceable sourcing.

    Direct Relationship, Reliable Supply

    Working directly with real manufacturers lets tanneries avoid the guesswork that comes from buying through layers of resellers who often know little about actual process requirements. Our production runs feed right into factory dispatch—no long floating warehouse waiting, no relabeling, and no stale stock that lost its structure sitting in transit.

    We welcome process audits, share real batch records, and provide on-call technical teams, not just monthly check-ins. Most importantly, we build stock and scale capacity based on rolling customer pipelines, so large-volume users get the supply continuity they need, even in peak season or in the case of raw material disruptions.

    Teamwork keeps us moving forward. Our chemists, production workers, and technical service partners have all worked on actual drum floors; we know that no batch is just another number—each hide, every split, and every crust run reflects a real person's work and livelihood.

    Summary of Why BRTA - RW Works Where Others Fall Short

    We crafted BRTA - RW Soft Foam System as a real answer, not a shelf product. Every feature—stable foam, granulated dust-free powder, fast reactivity, compatible with tight eco-tanning workflows—came from real-world process feedback. The structured synthesis route lets us control both swelling and dispersion. Tannery owners and operators have fewer headaches and more predictability, with cleaner operation, less product waste, and less need for corrective finishing.

    For us, the story of BRTA - RW is ongoing. We listen, test, and adjust, putting the needs of tanners first. We built this product on practical requirements, manufacturing transparency, and a commitment to a cleaner, safer, more responsive retan process. This is the difference genuine manufacturing makes.