Products

Blue Wet Process System - BROVIT - DLA Deliming Agent

    • Product Name: Blue Wet Process System - BROVIT - DLA Deliming Agent
    • Chemical Name (IUPAC): Aqueous solution of sodium bisulfite
    • CAS No.: 74975-84-5
    • Chemical Formula: C2H4O2
    • 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

    241024

    Product Name Blue Wet Process System - BROVIT - DLA Deliming Agent
    Type Deliming Agent
    Physical Form Liquid
    Color Clear to pale yellow
    Ph Value 7-8 (1:10 solution)
    Solubility Completely soluble in water
    Main Application Deliming in leather processing
    Shelf Life 12 months
    Storage Conditions Cool, dry place away from sunlight
    Compatibility Compatible with common liming and deliming agents
    Dosage Typically 1-3% based on pelt weight
    Biodegradability Biodegradable
    Odor Mild odor
    Safety Non-hazardous under normal use
    Packaging Plastic drums

    As an accredited Blue Wet Process System - BROVIT - DLA Deliming Agent 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 sturdy 25 kg white plastic drum labeled "Blue Wet Process System - BROVIT - DLA Deliming Agent" with blue accents.
    Container Loading (20′ FCL) 20′ FCL container loading for Blue Wet Process System - BROVIT - DLA Deliming Agent ensures secure, efficient bulk shipment of chemical.
    Shipping The shipping of Blue Wet Process System - BROVIT - DLA Deliming Agent is conducted in secure, leak-proof containers to ensure safe transit. Packages comply with chemical transport regulations, are properly labeled, and include safety data sheets. Temperature control and protective measures are utilized to prevent spillage or contamination during transportation.
    Storage The storage of Blue Wet Process System - BROVIT - DLA Deliming Agent should be in a cool, dry, and well-ventilated area, away from direct sunlight and moisture. Containers must be tightly sealed and clearly labeled. Avoid storing near acids, oxidizing agents, and food items. Follow all safety and regulatory guidelines to prevent spillage and contamination. Store at recommended temperatures.
    Shelf Life **Shelf Life**: Blue Wet Process System - BROVIT - DLA Deliming Agent has a shelf life of 12 months when stored properly in original packaging.
    Application of Blue Wet Process System - BROVIT - DLA Deliming Agent

    Applications of Blue Wet Process System - BROVIT - DLA Deliming Agent in Industrial Manufacturing

    Our Blue Wet Process System - BROVIT - DLA Deliming Agent addresses the demands of modern industrial leather processing by supporting precision deliming and control over complex manufacturing variables. The following detailed applications describe how end users in distinct sectors integrate this advanced deliming agent for improved process outcomes and regulatory compliance.

    1. Bovine Leather Processing for Automobile Upholstery

    In automotive leather manufacturing, tanners require controlled deliming to maintain precise hide softness, enable smooth chrome tanning, and meet emission regulations. The agent ensures even calcium removal while stabilizing hide pH, directly impacting tensile strength and elongation properties essential for seat coverings and high-spec car interiors.

    Industry compliance standards

    • ISO 9001:2015 Quality Management
    • REACH (EC) No 1907/2006
    • Automotive Leather Working Group (LWG) Environmental Audit Protocol
    • EN 16484:2015 Leather—Environmental impact analysis

    Typical usage ratio

    • 0.6 – 1.2% (by salted hide weight). Adjusted based on float length, ambient temperature, and desired deliming speed.

    Downstream process integration

    • Applied post-unhairing, before or during the pickling stage. Operators monitor pH and calcium oxide content at intervals to fine-tune agent addition and ensure residue levels fall within automotive standards.

    Final product types

    • Semi-aniline and pigmented bovine upholstery leathers
    • Corrected grain automotive seat covers
    • Steering wheel and gearshift leathers
    • High-durability door panel hides

    2. Hide Deliming for Footwear Upper Leathers

    Shoe leather processors use the deliming agent to minimize grain damage and scud retention while achieving clear and uniform deliming across split and full-grain hides. This process preserves elasticity and dye uptake essential for high-wear fashion and safety footwear uppers.

    Industry compliance standards

    • ISO 17075-1:2017 – Determination of chromium(VI) in leather
    • EN ISO 20345 – Personal protective equipment (Safety footwear)
    • LWG restricted substances protocols (RSL/MRSL)
    • Directive 94/11/EC – Safety specifications for footwear

    Typical usage ratio

    • 0.8 – 1.5% (by pelt weight). Modified for tight or thicker grain leathers; higher ratios for pre-split hides prone to residual lime.

    Downstream process integration

    • Introduced at the beginning of the deliming drum stage after liming/washing. Operators check for complete lime clearance and minimum grain swelling prior to bating and tanning steps.

    Final product types

    • Full-grain aniline shoe leathers
    • Split upper leathers for safety shoes
    • Chromium-free natural finish uppers
    • PU-coated fashion shoe leathers

    3. Sheepskin Preparation for Garment & Glove Leather

    Manufacturers processing sheepskin for garment and glove production rely on precise deliming to remove lime and lower pH without fiber damage. The agent supports fine grain structure that enhances dye consistency and silky hand-feel vital to luxury apparel markets.

    Industry compliance standards

    • OEKO-TEX® STANDARD 100, Annex 4 – Leather and textile safety
    • ZDHC (Zero Discharge of Hazardous Chemicals) Leather Manufacturing Restricted Substance List
    • CEN/TS 16417 – Leather—chemical tests for sheepskin
    • ISO 15700 – Sheepskin clothing test methods

    Typical usage ratio

    • 0.5 – 0.9% (by wet pelt weight). Lower limit used for fine, light skins; higher end for dense or double-faced skins.

    Downstream process integration

    • Added in deliming drums after soaking and liming. Operators monitor pH near 7 and test for complete de-lime before subsequent bating and pickling stages.

    Final product types

    • Double-face sheepskin for shearling garments
    • Soft nappa leathers for gloves and apparel
    • Dyed apparel and accessory leathers
    • Lambskin for luxury lining and trim

    4. Deliming for Vegetable-Tanned Leather in Craft and Saddlery

    Artisanal and industrial vegetable-tanned leather production employs this agent to ensure thorough deliming and precise pH control prior to tannage with plant extracts. Proper deliming enhances grain cleanliness, reduces tannage staining, and improves tensile and color uniformity for high-end leather goods and saddlery.

    Industry compliance standards

    • ISO 14001:2015 – Environmental management for tanneries
    • EN 15987: Leather—Chemical tests for vegetable-tanned leather
    • Italian UNI 10886 – Vegetable tanning processes
    • Leather Working Group environmental certifications

    Typical usage ratio

    • 1.0 – 2.0% (by dried pelt weight). Higher dosage applied for hides intended for tooling or embossing; adjusted for seasonal temperature and batch size.

    Downstream process integration

    • Agent introduced after traditional liming, pre-tannage, followed by several water washes to achieve neutralized pH and eliminate calcium residues before exposure to tannin liquors.

    Final product types

    • Tooling leathers for craft
    • Vegetable-tanned straps and harnesses
    • Saddlery and bridle leathers
    • Hand-finished vegetable-tanned belts and wallets

    Free Quote

    Competitive Blue Wet Process System - BROVIT - DLA Deliming Agent 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

    Blue Wet Process System – BROVIT – DLA Deliming Agent: Experience from the Manufacturer’s Bench

    Real Impact in Wet-Blue Deliming for Modern Tanneries

    Years of hands-on work in the chemical industry have shaped our approach to leather processing, and nothing demonstrates this better than our Blue Wet Process System – BROVIT – DLA Deliming Agent. The process of preparing hides for further finishing calls for more than a generic reagent. Tanneries demand consistent results, controlled swelling, and manageable ammonium salt levels. Too much variability in the deliming stage threatens yield, slows down throughput, and can cause unnecessary strain both on workers and wastewater plants. Our BROVIT – DLA Deliming Agent stands as a product we’re proud to put our name to, refined by daily experience and direct feedback from customers large and small.

    Where Performance Meets Practicality

    Stepping onto the production floor, we’ve watched deliming done the hard way—traditional ammonium sulfate applications clouding the air, pH swings causing concerns, lines running slower than necessary. Each time, the frustration is easy to see. Volatility in deliming hinders the consistent thickness and softness that tanneries aim for, and the rework can eat up any margin achieved with cheaper agents. With these hurdles in mind, we tailored BROVIT – DLA for superior buffering power and controlled pH management throughout the wet-blue process. The formulation thrives where predictability and control matter most.

    Product Features Driven by Real-World Experience

    BROVIT – DLA enters the mix as a granular, free-flowing deliming agent, designed for ease of handling right at the drum or pit. As a manufacturer, we measure our work in batches, not lab tests, and every bag of deliming agent represents our experience keeping production lines moving. Each particle dissolves quickly, saving time on manual stirring and preventing the kind of hot spots that lead to inconsistent reaction zones or patchy deliming. Our team designed the particle size and wetting properties to suit actual tannery workflows, reducing dust inhalation and minimizing the likelihood of operator error.

    In a sector where labor comes at a premium and environmental compliance draws constant scrutiny, we’ve adopted a process-focus. Less dust in the air means fewer respiratory issues among the crew, and precise dosing stands as a direct response to operator feedback from extended shifts. The blue wet process brings predictable pH ramp-down, so each hide receives thorough, even penetration—softening aggressively built-up lime, but stopping short of over-relaxation.

    Distinguishing BROVIT – DLA: Where It Counts

    We’ve watched alternatives in the market come and go, some promising the world and others barely meeting the mark. The difference emerges in everyday use. While many deliming agents lean heavily on a single component—often loading up on ammonium or basic salts—BROVIT – DLA comprises a blend engineered for complete, controlled lime removal, with minimal overexposure to ammonia. This is especially critical for operations with advanced wastewater controls. Plant managers talk directly to us about targets for total ammonium reduction, both for regulatory compliance and to hold down sludge treatment costs. BROVIT – DLA delivers measurable reductions in ammonium loads compared to straight ammonium-based delimers.

    A question often repeated in discussions with tannery technicians concerns the feel of the grain and the strength of the fiber structure after deliming. In practical terms, insufficient deliming leads to hard, poorly split wet-blue, while over-deliming breaks down the collagen matrix and loses valuable yield. Our product formula walks this line, producing a fine, flexible grain that holds up through the chrome tanning stage—a distinction our customers share in their results. We track these outcomes both in physical tests and regular site audits, which continuously feed back into our research process.

    A Manufacturer’s Commitment to Sustainability

    As chemical makers, we take our share of responsibility for the environmental footprint of leather production. Over years in the business, we’ve observed the steady tightening of discharge limits. Early on, it became clear that simply switching formulas or trading off one component for another only solved part of the problem. Our BROVIT – DLA line comes from persistent collaboration with tannery engineers, wastewater plant managers, and regulatory bodies.

    One lesson stands out: the biggest environmental wins come from cutting contaminants before they reach the drain. Compared to legacy ammonium-based delimers, BROVIT – DLA drastically reduces the nitrogen load heading into effluent treatment. This isn’t about simply diluting the issue or hiding it elsewhere; it’s about tackling the root chemistry that produces those wastes in the first place. Our technical service engineers regularly walk tannery floors, collecting samples and running comparative tests to keep our process aligned with evolving targets.

    We manufacture at scale, but our batch records and QC data get reviewed for every lot. Effluent data from large-scale installations with BROVIT – DLA routinely show a drop in ammoniacal nitrogen by upwards of 40 percent versus classic deliming with high-load ammonium salts. That allows cleaner discharge, lower running costs for the treatment plant, and less risk of regulatory fines or plant shutdowns.

    Consistent Process Flow and Finished Quality

    One of the issues that persists in wet-blue processing is the uneven deliming from variable hide thicknesses or differences in soak times. We’ve engineered our BROVIT – DLA to maintain robust lime removal across every inch of the hide, from the thickest butt to the thinnest belly. We watch for real-world variability, so the product doesn’t falter if the operator loads slightly heavier sides or if the water temperature skirts beyond target range during a busy production shift.

    Results show up not just in lab tests, but in day-to-day work. Operators see easier splitting, less complaint over hard spots in the grain, and more uniform chrome penetration on test panels. A predictable delime means batch-to-batch reproducibility, translating to more hides processed, less rework, and tighter control over quality for demanding end customers—be they in automotive, footwear, or furniture leathers.

    Practical Application and On-Site Benefits

    Every tannery faces unique operating conditions—different types of hides, shifts in water hardness, fluctuations in ambient temperature, and changing pressure from environmental audits. BROVIT – DLA adapts to these needs through consistent physical form and targeted pH buffering. The product outpaces straight sulfate or ammonium salts in real-world flexibility. For split-line operations facing operator turnover or seasonal staff, the free-flowing character supports rapid training and lower incident rates.

    Our product team stays in direct communication with users, collecting feedback for ongoing adjustment of the formula. We designed BROVIT – DLA to integrate with both automated dosing systems and manual batch operations. Feedback over years has taught us to value things that rarely make it into technical bulletins: how much dust kicks up when bags are opened, how often the drum gets fouled with undissolved material, how much downtime occurs while operators adjust pH or reset cycles. Our product directly addresses these pain points, based on lived experience, not theoretical claims.

    Attention to Worker Safety and Plant Hygiene

    Worker health and plant environment hold as much weight in our design as performance data. Granulation and anti-dust additives embedded in the production stage reduce airborne particulates. Operators comment on the noticeable drop in eye and throat irritation once they switch from powdery, fast-dusting deliming agents to BROVIT – DLA. Factory management tracks sick days and occupational hazard reports; smoother-running, cleaner deliming translates into less absenteeism and fewer complaints, and, given tightening safety standards in emerging economies as well as established markets, this is an important consideration for every scale of operation.

    The ease of cleaning after deliming stages increases, as BROVIT – DLA’s residues rinse away cleanly, sparing operators from chasing persistent precipitates on equipment walls or in drain lines. This saves labor in the back end and also maintains the working environment to a standard that inspectors and clients appreciate.

    Quality Assurance: From Batch Production to the Hides Themselves

    We run our production lines using ISO-audited quality controls, tracking each batch from raw material to finished product. It’s not just about compliance; it’s about accountability—each BROVIT – DLA shipment must meet customer expectations, or it doesn’t leave our plant. Our QC managers and production leads bring field samples directly back to the lab for physical and chemical analysis, looking for any deviation in pH curve, solubility, or physical form that could ripple down the processing line.

    Our work connects directly with client feedback from field technicians: undelimed spots, over-limed sections, or inconsistent splits reflect on our reputation as much as our customers’. We respond by reviewing application rates, timing, and drum settings together with the on-site team. That exchange sits at the center of our manufacturing philosophy—avoid surprises, keep processes transparent, and treat every challenge as a collaborative opportunity for improvement.

    Continuous Innovation: Listening to the Process

    Chemical development at our plant never stands still. The needs of tanneries change with shifts in hide sourcing, regulation, and final market requirements. By working shoulder-to-shoulder with customers, we gain insight into the full process pipeline. Over years, improvements to BROVIT – DLA have come from more than lab trials—much of our best data comes from field visits, operator interviews, and collaborative troubleshooting during particularly challenging production runs.

    Take, for example, situations where local water changes seasonally from moderately hard to extremely soft—the pH curves and buffering requirements shift. We have built BROVIT – DLA’s blend to match a wide spectrum of water profiles. This speeds up startup for new installations and avoids process drift when inputs change. Often, the best refinements result from end users sharing minor annoyances—a drum valve sticking, an unexplained color change in the effluent, or uncharacteristic odor in the plant air. We treat each note as actionable feedback.

    Economic Value: Lowering Waste, Raising Output

    Investment in modern deliming chemistry translates immediately to the bottom line. It’s easy to underestimate the cumulative cost of rework, lost yield, or environmental surcharges. Having stood in both high-throughput tanneries and smaller specialty outfits, our team sees how incremental efficiency gains stack up over quarters and years. BROVIT – DLA consistently reduces cycle time and energy consumption for deliming, by minimizing guesswork and manual adjustments. In survey after survey, customers report lower consumption per ton of hide, with improved clarity in drumming operation logs.

    Significant, too, is the benefit of reducing fines and wastewater surcharges from regulatory agencies. We partner with environmental compliance managers, providing effluent analysis as part of the product service, and the tangible drop in ammoniacal nitrogen consistently outperforms previously used agents—reportedly saving several medium-sized plants thousands in fees each year, while keeping them inside the envelope needed to protect their business license.

    Comparison with Other Deliming Agents: Practical Differences

    Inside the practical world of wet-blue deliming, the choice isn’t between brands; it’s about trusting a system that supports throughput, worker safety, and regulatory demands. Most classic deliming agents rely on ammonium sulfate or ammonium chloride, both of which introduce ammonium ions directly into the effluent stream. Over time, the accumulation translates into headaches at the water treatment plant, and risks running afoul of tougher discharge limits set by authorities. Additionally, sulfate-only systems often lack buffering strength, leaving operators to balance lime removal with the risk of overzealous hydrolysis.

    BROVIT – DLA was formulated on our direct observation of these weaknesses—removing dependence on excessive ammonium sources, and embedding strong, process-compatible buffers. Through both in-plant testing and blind trials at customer sites, the outcome shows: smoother pH curves, more efficient lime extraction, and greater protection of the natural collagen structure in the hide.

    Another difference: our deliming agent resists overdrying, keeping hides soft and workable through tanning and finishing. After repeat cycles in high-capacity drums, operators report more even chrome uptake, which directly tracks with the initial delime. The move away from caustic or high-alkali delimers means plant pipes and drum surfaces experience less scaling—a maintenance win that shows up quickly in reduced downtime for cleaning or equipment outages.

    Tannery staff recognize the benefit on the floor. Less odor, fewer dust clouds, and quicker preparation make it easier to focus on tighter quality margins elsewhere in the wet-end process. Whether dealing with premium bovine hides or thinner, more delicate splits, BROVIT – DLA’s flexible approach enables a broader operating window. It handles differences in rawhide origin and prior preservation without missing a beat, which is something we bank on for our own manufacturing stability.

    Service Beyond the Bag

    Supplying the market with a high-quality deliming agent isn’t a one-and-done contract. Every bag placed in a tannery represents a continuing relationship and a commitment to solve problems as they arise. As manufacturers, we respond day and night to queries about process adjustments, dosing rates, and troubleshooting. Our field team tracks performance through direct KPIs measured alongside the tannery’s own production metrics. This isn’t just about moving chemical inventory—it’s about ensuring each batch of hides reaches its final market grade with the least waste and the highest possible return.

    Field feedback loops back into our third-party audits, which serve to confirm both in-process performance and end-customer satisfaction. We routinely support on-site training for operator teams and help customers establish optimized standard operating procedures. Our ability to provide this level of technical partnership separates us from those who operate purely as traders or aggregators. The knowledge gained in plant after plant, batch after batch, accumulates as real-world expertise that shapes both our products and our approach to service.

    Trusted by Experience, Not Just Data

    Over decades of involvement in the chemical industry, we’ve learned to judge every product by its track record on the floor, not how it stacks up in the sales brochure. Our customers share their results openly—both successes and headaches. As makers, we own the responsibility for the full outcome, and that mindset powers every decision, from formulation to after-sales support.

    The Blue Wet Process System – BROVIT – DLA Deliming Agent brings together every lesson we’ve learned, every tough production run survived, and every regulatory hurdle overcome. We use it ourselves in partner installations, standing behind every shipment that leaves our plant.