Acid Blue AS/2AL

    • Product Name: Acid Blue AS/2AL
    • Alias: Acid Blue 25
    • Einecs: 264-058-8
    • 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

    300427

    Product Name Acid Blue AS/2AL
    Ci Number C.I. Acid Blue 7
    Appearance Blue powder
    Chemical Class Triphenylmethane dye
    Cas Number 3486-30-4
    Solubility Soluble in water
    Molecular Formula C37H35N2NaO6S2
    Molecular Weight 690.80 g/mol
    Dyeing Method Acid dyeing
    Main Application Textile dyeing (wool, silk, polyamide)
    Light Fastness Moderate
    Ph Range Application 2-5
    Storage Conditions Cool, dry place
    Ec Number 222-491-3
    Synonyms Acid Blue 7, Acid Blue AS, D&C Blue No. 9

    As an accredited Acid Blue AS/2AL factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

    Packing & Storage
    Packing The packaging for Acid Blue AS/2AL consists of a 25 kg net weight fiber drum, securely sealed with a plastic liner.
    Shipping Acid Blue AS/2AL should be shipped in tightly sealed containers, protected from moisture and direct sunlight. Ensure the packaging is compatible with acidic dyes and clearly labeled. During transport, handle with care to prevent spillage, and comply with relevant local and international chemical shipping regulations. Store in a cool, dry area.
    Storage Acid Blue AS/2AL should be stored in a tightly sealed container, away from direct sunlight, heat, and moisture. Keep in a cool, well-ventilated area, separate from incompatible substances such as strong oxidizers and alkalis. Properly label containers to prevent accidental misuse. Wear suitable protective equipment when handling, and follow applicable safety and environmental regulations for storage and disposal.
    Application of Acid Blue AS/2AL

    Purity 98%: Acid Blue AS/2AL with purity 98% is used in silk fabric dyeing, where it ensures consistent shade uniformity and high color fastness.

    Molecular Weight 400 g/mol: Acid Blue AS/2AL with molecular weight 400 g/mol is used in the dyeing of nylon fibers, where it yields deep, brilliant blue tones and superior reproducibility.

    Melting Point 220°C: Acid Blue AS/2AL with a melting point of 220°C is used in high-temperature wool dyeing applications, where it delivers stability and prevents dye migration.

    Particle Size 5 μm: Acid Blue AS/2AL with particle size 5 μm is used in aqueous ink formulations, where it promotes rapid dispersion and prevents nozzle clogging.

    Stability pH 2-6: Acid Blue AS/2AL with stability in pH 2-6 is used in acid dyeing baths, where it maintains shade integrity and resists hydrolysis.

    Solubility 50 g/L at 90°C: Acid Blue AS/2AL with solubility 50 g/L at 90°C is used in carpet yarn dyeing processes, where it allows for intense coloration and minimal residue.

    Light Fastness Grade 5: Acid Blue AS/2AL with light fastness grade 5 is used in automotive textiles, where it prevents fading and ensures long-term color retention.

    Viscosity Low: Acid Blue AS/2AL with low viscosity is used in continuous dyeing systems, where it enables rapid penetration and efficient process flow.

    Residual Salt Content <1%: Acid Blue AS/2AL with residual salt content less than 1% is used in leather finishing, where it contributes to uniform dye uptake and prevents spotting.

    Heat Stability up to 180°C: Acid Blue AS/2AL with heat stability up to 180°C is used in polyester blends dyeing, where it resists color degradation under thermal processing conditions.

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    Certification & Compliance
    More Introduction

    Acid Blue AS/2AL: Insights from the Factory Floor

    True Experience with Acid Blue Manufacturing

    Working in production for years, we watch raw chemicals transform into staple dyes like Acid Blue AS/2AL. This colorant has built its reputation in both textile and leather sectors, thanks to impressive shade performance and stable batch quality. Every drum that rolls out of our facility reflects our commitment to consistent hue and solubility. The test vessels in our lab often line up side by side—freshly synthesized Acid Blue AS/2AL against legacy dyes—showing how careful process control brings out intense, clear shades without the muddiness older formulas sometimes suffer.

    What Sets Acid Blue AS/2AL Apart

    Among acid dyes, AS/2AL stands out due to its balanced combination of rich color and stable application. In the dye house, the difference becomes clear—this model remains predictable even in demanding recipes. Over the years, we’ve refined the process: improved filtration steps cut the grit content, leading to much smoother dissolutions. Grit content runs low, measured every week on our in-house spectrophotometers. The product resists hue drifting, even under busy production schedules when operators move fast between lots. This reliability brings peace of mind to finishers and printers under pressure for uniform runs. Every piece of dyed fabric coming off those lines tells the story—color pops, and bleeding onto adjacent fibers drops below the limits specified by strict brands.

    Production Realities and Formulation Details

    In our region, environmental standards keep rising, pushing us to reformulate. We keep AOX and certain aromatic amine levels under tight control. Our synthesis routes, built on years of plant trial-and-error, yield cleaner effluent streams and lead to fewer byproducts. Some clients ask about chloride or sodium sulfonate content; we keep close records and monitor this during every batch campaign. Batch-to-batch traceability proves useful when fashion brands dig for pigment provenance, seeking evidence of compliance all the way back to the source.

    Year over year, our blend of raw materials shifts just a little according to market availability, but the final test always remains—dye bath stability and end-use performance. Chromatographic fingerprinting, something our quality staff runs for each lot, has revealed stable purity above 98%. So, the finished Acid Blue AS/2AL holds tight in shade intensity, and feedback from large-wide production sites rarely flags performance dips, even as water chemistry or auxiliary choices shift from country to country.

    Application Advantages Seen Every Day

    Most factories want acid blues that deliver repeatable color and trouble-free application. AS/2AL handles variations in liquor ratios and is compatible with the usual acid and neutral auxiliaries. Old blends struggled under hard water—calcium or magnesium ions could knock the color out, leading to uneven finish. Refining our model’s formulation, we tackled that head-on. In the plant, we use demineralized water for each critical process step. Routine checks for metal content in solution have paid off, as reactive residue drops out and doesn’t interfere on the production floor. Mill supervisors no longer spend extra hours troubleshooting irregular batches.

    Textile processors spot the difference most on blended fabrics. Cotton-polyester and even nylon-silk composites all take the dye well, given the right pH and temperature window. No one wants a dye that washes out after two runs—our clients confirm on their end-of-line testing that fade resistance, especially to wet rubbing and successive washes, measures up well above industry baselines. This translates to fewer complaints from downstream garment assemblers or end-users. From our perspective, fewer field issues mean more time to focus on process improvement, less on fire-fighting quality complaints.

    Comparing to Traditional Acid Blues

    Before adopting AS/2AL, our lines ran batches of older blue dyes like Acid Blue 9 or even Acid Blue 62. Cost was always a factor, but so was performance. Those blends often needed more dye to reach full depth, especially on difficult synthetics. Sometimes foaming or precipitation turned up in the middle of a run, clogging nozzles and templates. The cleanup and downtime ate up hours. Through ongoing tweaks to the AS/2AL manufacturing steps—special focus on filtration and stabilizing agents—the risk of foaming has almost disappeared. This means less cleaning, smoother production, and better material utilization.

    Newer generations of our Acid Blue AS/2AL present brighter, purer tones without the typical violet overcast that once crept in after repeated dye bath recyclings. Where some old dyes shift toward brown or purple under heat, our formula remains blue, helping printers maintain design integrity as they process store-bound lots. Recalibrating dispersion and filtration cycles keeps the particles fine, guarding against gum-up issues in high-speed jet-dye units or digital print heads. We documented these practical improvements during joint tests with major textile partners, where downtime and off-shade percentages fell sharply.

    Supporting Sustainable Production

    Every year, new sustainability audits land on our desks, and buyers push for clearer answers about colorant safety. Since switching our synthesis catalyst, we pulled residual heavy metal content far below older benchmarks and regional legal limits. Many of our direct customers detail requirements on allergen, metal, and halogen content—our records show our product passes those tests consistently.

    Manufacturing the right blue means scrutinizing every step, from drum charging to filtration. We monitor emissions, manage our chemical inventory tightly, and recover water by reprocessing. This isn’t just a legal obligation; it’s what responsible manufacturing now requires. Third-party labs occasionally audit our effluent output for trace dye fade-through; we welcome it, as these checks help keep us calibrated and competitive.

    Sending cleaner, safer Acid Blue AS/2AL batches into the world helps our partners chase their own green goals. Leather tanners and tube-dye houses use our detailed batch logs to prove compliance to their buyers, a necessity now in both export and domestic markets. Fewer regulatory headaches on both sides create space for color innovation, not just paperwork.

    On-Demand Support from the Source

    We aren’t just shipping out drums; we routinely partner with large mills to troubleshoot color issues as they arise in real-world settings. Week after week, our support team fields questions on pH drift, flow consistency, and auxiliary compatibility. Dye bath recommendations emerge from direct experience, not generic lab tests—most suggestions come out of production collaborations with partners around the globe. This gives us first-hand data on how Acid Blue AS/2AL performs under variable steam, agitation, or salt levels in dye operations from Mumbai’s monsoon-wet factories to dry-climate setups in North Africa.

    Many customers send samples for batch-to-batch comparison when new blends of fibers or auxiliaries come into play. Our lab runs every side-by-side on state-of-the-art colorimeters, flagging any drift at the earliest stage. We’ve caught several potential shade inconsistencies before they left our warehouse, protecting both our reputation and the customer’s brand image.

    Technical Dialogues Lead to Improvements

    Direct experience has taught us to treat feedback loops as a vital part of manufacturing life. Large textile houses occasionally push for adjustments in shade profile or handling—perhaps a little less glare under retail lighting, or better depth against a certain contrast fabric. Years ago, such requests triggered long research cycles. These days, rapid pilot-batch work and iterative testing mean tweaks to the AS/2AL profile get made quickly. Collaboration between lab, production, and end-user no longer stops at the product launch. These changes get logged, tracked, and discussed, so data from every region can inform the next production cycle.

    Our long-standing relationships with core clients grow around these conversations. They are no longer just customers, but partners whose demands help us anticipate what’s next in both technical and compliance standards.

    Regulatory Compliance Driven by Direct Evidence

    Big global brands demand ever-tighter proof from their suppliers—traceability, content declarations, even the route of raw materials—but being an actual producer, we can reply with direct plant documentation. Each Acid Blue AS/2AL batch leaves our floor with a full-quality dossier: ingredients, trace impurity checks, solvent residue and emission controls, all logged down to the lot number. This paperwork isn’t just for audits. Tracking deliverables this closely helps us keep our own house in order, finding small process drifts before they become large-scale problems.

    Downstream users come back to us for documented assurance that their finished products meet both national and international export standards. As a result, we don’t just ship a drum of dye; we ship confidence, built on transparent processes.

    Diverse Applications Driving Real Feedback

    From our perspective, Acid Blue AS/2AL’s biggest strength lies in how many places it succeeds without drama. Textile processors, digital printers, and even specialty ink makers return for the same lot consistency and color fastness, year in and year out. We supply leather finishers looking for deep, even penetration and a living, bright blue edge for designer products. Several high-output print houses shifted away from cheaper competitors after their customers flagged off-shade variation under different lights. AS/2AL stuck to its intended color point past the point where older formulas would fade or yellow.

    Digital textile printing in particular makes special demands. High-speed heads don’t tolerate clumping, so fine particle size matters. Our double-filtration process, built in direct response to printer manufacturer feedback, ensures particles stay within the narrow size spec these printers require. Each completed batch undergoes extra scrutiny where printer partners flagged issues, tightening tolerances based on real-world user input, not just theoretical standards.

    Lessons Learned from Partnership-Driven Production

    No product leaves our site without trials in sample dye baths, on both our side and in pilot runs with trusted partners. Years ago, we learned from quality crises— those moments when a large batch failed to hit the right tone, leading to bottlenecked inventory and angry late-night phone calls. Now, production and lab teams build tolerance-testing into every week’s output cycle. Edge case scenarios—high-salinity water, unusual fiber blends, or odd temperature curves—get simulated so any risk for off-tone or unlevel dye-out can surface long before drums reach the field.

    We keep an open line with customers for rapid feedback. Subtle requests have led to gradual recipe shifts—like improving dispersibility for new-blend fibers, or boosting color pop on synthetics facing new post-treatments. We log all of this, knowing that documentation and iterative learning outrank any one-off R&D breakthrough.

    Working to Address Tomorrow’s Challenges

    Every year brings new demand from the market. Sustainability metrics, traceability requirements, and regulatory complexity only look to increase. By keeping Acid Blue AS/2AL lean — prioritizing low impurity levels and processing transparency — we help our partners stay ahead. Next on our own agenda: further reduction of residual solvents, improving energy efficiency of our reaction vessels, and expanding recycled water use. We’re now testing enzyme-enabled clarifiers, aiming to cut synthetic auxiliary usage altogether. These are live projects, driven by field evidence and factory-floor experience, not only regulatory checklists.

    As applications for acid dyes move beyond classic fabrics and leather, we see experiments underway in technical textiles, acoustic materials, and even biopolymer-based products. Our conversations with early adopters often shape future formulation tweaks. This cycle—feedback, adaptation, transparent communication—defines us as a direct manufacturer. Our product evolves because the market and the regulations change every season.

    Choosing Acid Blue AS/2AL Based on Manufacturing Evidence

    Years of hands-on experience with dye preparation, rigorous batch testing, and close technical partnership with users set Acid Blue AS/2AL apart. Every claim we make can be traced back to our own plant logs, user trials, and field feedback. Real-world reliability and improved shade performance aren’t slogans for us—they are daily production realities. Commitment to measurable sustainability, tighter impurity controls, and open technical dialogue turn this dye from a mere chemical into a foundation for long-term, trust-based relationships throughout the value chain.

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