|
HS Code |
633644 |
| Chemical Name | Acid Red V |
| Other Names | C.I. 50240 |
| Molecular Formula | C18H14N2Na2O7S2 |
| Molecular Weight | 480.42 g/mol |
| Appearance | reddish brown powder |
| Solubility | soluble in water |
| Melting Point | decomposes |
| Cas Number | 3697-96-3 |
| Dye Class | azo dye |
| Maximum Absorption Wavelength | 520-522 nm |
| Ph Range For Application | 2 to 5 |
| Usage | textile dyeing |
As an accredited Acid Red V factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Acid Red V is packaged in a sealed 100g amber glass bottle with a secure cap, labeled with safety and handling instructions. |
| Shipping | **Acid Red V** should be shipped in tightly sealed containers, protected from moisture and direct sunlight. Transport in accordance with local and international chemical regulations, ensuring labels indicate hazard classification. Handle with appropriate personal protective equipment and avoid exposure to incompatible substances. Store in a cool, dry, and well-ventilated area during transit. |
| Storage | **Acid Red V** should be stored in a tightly sealed container, in a cool, dry, and well-ventilated area, away from direct sunlight and incompatible substances, such as strong oxidizers and bases. Ensure the storage area is clearly labeled and secure. Use secondary containment to prevent accidental spills, and comply with local regulations for hazardous chemical storage. |
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Purity 98%: Acid Red V with purity 98% is used in textile dyeing, where it ensures brilliant and uniform color shades. Molecular weight 325.32 g/mol: Acid Red V with molecular weight 325.32 g/mol is used in pigment formulation, where it offers consistent dispersion properties. Aqueous solubility 50 g/L: Acid Red V with aqueous solubility 50 g/L is used in paper coloring, where it achieves deep and even penetration into cellulose fibers. pH stability range 4–7: Acid Red V with pH stability range 4–7 is used in cosmetic manufacturing, where it maintains shade integrity in mildly acidic to neutral formulations. Melting point 160°C: Acid Red V with melting point 160°C is used in plastic compounding, where it enables thermal stability during extrusion processes. Particle size D90 ≤ 10 μm: Acid Red V with particle size D90 ≤ 10 μm is used in chemical marker applications, where it provides homogeneous dispersion and visibility. Lightfastness grade 4: Acid Red V with lightfastness grade 4 is used in leather dyeing, where it delivers enhanced color retention under light exposure. Stability temperature 120°C: Acid Red V with stability temperature 120°C is used in printing ink production, where it guarantees long-term color performance at elevated curing temperatures. |
Competitive Acid Red V prices that fit your budget—flexible terms and customized quotes for every order.
For samples, pricing, or more information, please contact us at +8615365186327 or mail to admin@ascent-chem.com.
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Tel: +8615365186327
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Year after year in the dye industry brings changes: technology upgrades, regulatory updates, and ever-higher customer expectations. Yet, one thing never fades—the need for consistent, intense color on fabric that holds up to daily use. We have been producing Acid Red V for years, running full-scale synthesis in our own facilities and optimizing our process to meet demanding textile standards. This is not a product that rolls out of a blending tank after a quick batch; it comes from precision control, tested batches, and closely managed raw materials. Evidence of our work shows up in the wash-fast reds on school uniforms, the light-resistant crimson in draperies, and the sharp reds shoppers want on clothing racks.
Our teams work hands-on at every stage. Granular acidity, particle filtration, even humidity during packaging—each factor makes a tangible difference in how Acid Red V performs on real fabric in commercial dye houses. Staff chemists dedicate hours to evaluating every lot, because one off-note in a red shade doesn’t just spoil a batch, it hurts trust in our name. Our technical staff remain available to visiting customers, open about the dyes' building blocks, so fabric finishers can run their own checks. We know our product’s strengths and what to avoid. Customers want to hear from the people who stand by the drums, not from anonymous traders.
Every dye house has a choice of tens of acid dyes labeled “red,” but Acid Red V keeps a regular place in purchasing lists, not because of mysterious “proprietary blends” but because it shows real results. Chemically, Acid Red V (model: Acid Red 1) offers an intense, even, and clear red shade on protein fibers—especially wool and silk. The specifications we commit to include a high level of dye purity, controlled moisture content, and precise particle sizing. Unlike many cheaper reds, our Acid Red V generates a less muddy hue. Fabric artisans and industrial-scale operators tell us it brings out a true, lively tone instead of a dull or brick-red result.
In direct comparison with acid reds from other sources, operators point out its higher solubility and steadier performance in strong acid baths. By avoiding excessive inert salts in the manufacturing process, we minimize clogging in jet-dyeing and padding equipment, saving our customers from shutting down lines for cleaning. We build this product for those who expect dyes to flow, not to cake and settle. Acid Red V handles the pace of industrial dyeing—on loose wool, piece goods, or garment stages.
Acid Red V finds its workhorse utility in dye houses that process wool and silk. Wool spinners and fabric finishers come back to this product before peak seasons, looking for its ability to penetrate and fix on fiber. We routinely send large shipments to contract dyers handling carpet yarns, felt, and fashion textiles. In our experience, the greatest value comes when Acid Red V serves as the primary red in a multi-shade lineup. On its own, it lays down a striking scarlet—useful for flags, banners, uniforms, and specialty fashion lines. It excels in mixtures with Acid Yellow 36 or Acid Blue 80, allowing a smooth transition from red to purple or orange, without destabilizing the shade in repeat runs.
Acid Red V proves robust in both exhaust dyeing and continuous dyeing. Customers often remark on reduced batch-to-batch variation, which reduces the need for shade correction steps that waste time and money. In wool felting, the color remains resistant even after mechanical agitation, showing good resistance to back staining and fading. With silk, it provides a rich afterglow, especially under direct light, and stands up to repeated washing. Operators adopting automated dosing systems appreciate that Acid Red V disperses quickly and fully, integrating seamlessly into computerized dyeing programs. Textile supervisors tell us the re-dye count comes down significantly with this product, compared to “shortcut” reds they’ve used before.
We run our specs tighter than much of the market. Each batch of Acid Red V must meet precise color strength targets, measured via multiple-point spectrophotometry. We keep impurities low to avoid contamination of expensive fabrics. Quality control records from the last ten years show fewer than 0.6% of lots requiring rework, and customer returns are near zero. Our minimum guaranteed color strength translates to lower dosing and cost savings per job.
Typical deliveries offer a moisture content below 2%, and packaging—double-lined, moisture-barrier bags—keeps product ready for instant use. Our customers handle the material in powder form, but requests for custom granulation and dust control are routine, especially in markets with strict workplace safety.
We avoid fillers in every package. Cheaper sources sometimes rely on sodium sulfate or china clay to bulk out the powder and cut cost, but we do not. The end result may cost a bit more by the kilogram, but when fabric buyers come to inspect a final order, it’s the shade accuracy and color fastness that keep contracts rolling in.
Strict regulations have rewritten how manufacturers think about dye formulation. Every region tightens rules for restricted substances. Our compliance team works with supply chain partners to provide traceability for all raw chemicals, meeting the newest anti-contaminant and heavy metal guidelines. Acid Red V passes international tests for harmful substances, helping customers pass audits for eco-labels. Factories aiming for Oeko-Tex or bluesign certifications provide us with their lab prints, and our dye matches the levels required for these standards.
With exporting, paperwork weighs as much as the dye. We produce up-to-date COAs and MSDS documentation for every batch, so clients know what goes into their supply chain. Recent years have seen a shift toward greater transparency, and we open our lab and factory to visiting customers. Auditors have examined our documentation and on-floor practices, and we maintain the process discipline required to satisfy both domestic and international commentators. This openness adds to the cost of doing business, but it sets a higher bar for accountability.
A question we hear a lot from buyers: What makes Acid Red V preferable to other acidic reds available from mass outlets or trading houses? Many alternatives come with promises—high yield, better dispersion, lower pricing. In our direct trials and feedback from mill operators, Acid Red V’s advantage sits in its brighter chroma, faster dissolve time, and cleaner filterability. While some reds shift towards violet or orange under different conditions, our formula delivers a stable, clear red that holds its shade even in complex blends.
Acid Red V avoids the blotchiness that haunts certain reds lacking purity or consistency. We keep the shade stable across lots, so long-term users don’t have to adjust formulations on the fly. With new, energy-saving dyeing machines running shorter cycles, a dye that enters solution rapidly matters more than ever. Cheap imitations often build up sludge in jets and pumps, costing downtime and frustrated operators. We’ve engineered our process to produce a dust-free powder, sidestepping respiratory hazards and messy workstations.
Our customers report better wash fastness and less crocking, so textile brands face fewer complaints after garments reach store shelves. In the contract dye business, repeat orders hinge on reliability. We back every shipment with records—from spectrometer logs to batch mixing data—so sourcing teams receive hard evidence of what they’ll get with each bin.
Fashion never stands still. The reds that worked in suiting twenty years ago feel out of place for sportswear or tech fabrics. Market shifts drive demand for truer shades that survive stretch, sweat, sunlight, and repeated use. We spend a lot of time with fabric designers, understanding how emerging trends stretch the demands on Acid Red V. Our support team runs simulated dye trials for customers working on new materials (bamboo viscose, recycled wool, performance blends) to give predictable results even where finishing processes run nonstandard.
Feedback loops with mills help us adjust the particle grind, so Acid Red V runs smoothly through everything from classic bath dyeing to modern jet units. Print houses applying Acid Red V with digital or screen technologies have also reported strong clarity. In custom printing jobs—scarves, wall art, banners—our dye stands out for a crisp edge without bleeding, holding pattern detail well above lower-grade imports. In carpet production, where color must persist against friction and sunlight, Acid Red V cuts customer complaints and shrinkage.
Most of our clients are not one-off buyers; they return year after year because they know what they’ll receive. Early discussions with new customers often revolve around consistency between shipments and what happens if a batch is off-spec. We keep retained samples and lab results for comparison—something few non-manufacturing suppliers can offer. Customers bring us their own test fabrics during trials, and our floor staff collaborate to hit the exact shade, adjusting the application techniques as needed.
Seasonal surges and rush jobs are inevitable. Instead of quoting lead times that stretch out for weeks, we pull from local inventory or run our lines overtime to cover last-minute needs. During peak demand for schoolwear or festival costumes, old customers rely on our ability to deliver fast and true. Direct communication—engineer to engineer, operator to operator—cuts out delays and translation errors. Problems get solved by talking to those who stir the vessels and fill the bags, not by raising tickets through layers of resellers.
Nothing in manufacturing stays static. Global shortages of intermediates can upend a recipe overnight. In lean years, sourcing pure raw materials at stable prices tests our team’s ingenuity. Instead of rushing to cheap fillers, we adapt processes, secure molecular substitutes, and revalidate production steps. Once, a shift in upstream supply required us to halt a run after detecting faint off-shade. We adapted, invested in better upstream testing, and brought rejected lots back into spec before anything left our dock. Such setbacks are part of life in chemical manufacturing; what matters is responding rapidly and owning the process.
Shutting down a whole batch for retesting draws complaints inside the company and costs us time. Yet, every time we chose this over shipping a questionable batch, we ended up strengthening customer trust. Quality in chemicals is about more than passing tests; it’s the willingness to absorb short-term setbacks in favor of long-term relationships.
Customers care about origin. Our plant uses closed-loop water systems, so spent dyes don’t exit untreated. We treat effluents with activated carbon and filtration, not just to meet standards but to retain our license to operate in a tightly regulated zone. Outside inspectors frequent our plant, and we invest in regular training for safety and compliance. While Acid Red V is a synthetic dye, we continually examine paths to minimize environmental impact—from sourcing sustainable packaging to reducing chemical waste in downstream processes.
Emerging eco-labels are rewriting the market. Brands ask not only about the product itself but also about the ways it is made. We have adjusted our formulations so downstream processes—soaping, after-treatment, effluent—can handle any residues. Our resistance to cutting corners on formulation or pollution control is a choice as much as a cost.
Not every customer has the same equipment, and real-world conditions during dyeing vary. Our team fields requests for tailored advice on how to apply Acid Red V to difficult blends or specialty fibers. With wool-polyester, for example, typical acidic recipes cause uneven take-up, so we recommend finer adjustment to pH and auxiliaries, based on our own trials. We share our in-house recipes and troubleshoot problems directly—a service that separates manufacturers from passive sellers.
We see our role as more than shipping drums. We work with customers to minimize color migration in multi-fiber blends, provide recommendations for shade buildup, and run joint dye trials to prove out efficiencies. Experience in chemical manufacturing means knowing what questions to ask, and what minor process shifts could rescue a batch from an unexpected off shade. We answer questions that newcomers to dyeing can’t get answered from mere resellers: Will this dye block my equipment lines? How can I mix for a brighter orange? Is there a risk of back-stain in continuous runs? Our support staff draws from real factory data, which helps keep downtime low for our partners.
Loyalty comes from keeping promises. Our regular clients tell us that their color QC logs record fewer errors during audits. Batch-to-batch repeatability shortens the time fabric spends in production, which means faster turnaround to satisfy retail buyers. Customers in export textile parks operate on tight schedules, and having a dye that works as specified—no surprises, no backtracking—means more to them than saving pennies on each kilo.
Over the years, we have watched fabric designers, printers, and dyers build robust product lines around Acid Red V. Each season’s trends bring new hues, but the backbone remains the reds that hold across production lines. This dye’s reliability supports not just quick jobs but complex, high-stake orders where failure would cost contracts and reputations.
Decades in chemical manufacturing teach patience and resilience. Every improvement—better color accuracy, safer handling, streamlined documentation—has come from lessons learned the tough way. We upgrade not only our reactors and filtration systems, but also our training and transparency. That experience lets us help customers avoid common pitfalls in dyeing. The future will bring new fibers, faster lines, and even tighter rules. To keep pace, we commit to honest communication, strict control over process variables, and pride in every lot that leaves our door.
Acid Red V is more than a formula on a label. It is the result of hands-on craftsmanship, technological investment, and a refusal to compromise on quality. For buyers, textile finishers, and designers who value deep red with proven fastness, this product represents not just a shade— but also the backing of a manufacturer who understands their reality. Our track record speaks not just through paperwork, but through the colors that hold fast in the world’s fabrics.