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HS Code |
571915 |
| Cas Number | 12220-20-1 |
| Ec Number | 235-468-7 |
| Molecular Formula | C34H26N6Na2O8S2 |
| Molecular Weight | 776.72 g/mol |
| Appearance | Orange powder |
| Solubility In Water | Soluble |
| Dye Class | Azo dye |
| Color Index Number | 18736 |
| Usage | Textile dyeing, especially wool and silk |
| Synonyms | C.I. Acid Orange 171, Acilan Orange 2R |
| Maximum Absorption Wavelength | Approximately 490 nm |
| Ph Stability Range | Stable in acidic conditions |
As an accredited Acid Orange 171 factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Acid Orange 171 is packaged in a sealed, sturdy 25 kg fiber drum with inner plastic lining for moisture protection. |
| Shipping | **Shipping Description for Acid Orange 171:** Acid Orange 171 should be shipped in tightly sealed containers, protected from moisture and direct sunlight. Store in a cool, dry, well-ventilated area. Ensure compliance with local, national, and international regulations regarding transportation and labeling. Use standard safety precautions to avoid spills or exposure during handling and transit. |
| Storage | Acid Orange 171 should be stored in a tightly sealed container, in a cool, dry, and well-ventilated area, away from incompatible substances such as strong oxidizers and bases. Protect from moisture, direct sunlight, and sources of ignition. Ensure the storage area is equipped with appropriate spill containment and labeled according to safety regulations. Wear suitable personal protective equipment when handling. |
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Purity 98%: Acid Orange 171 with purity 98% is used in textile dyeing, where it ensures vibrant and uniform coloration of synthetic fibers. Molecular Weight 991.16 g/mol: Acid Orange 171 with molecular weight 991.16 g/mol is used in leather coloring processes, where it provides consistent penetration and colorfastness. Particle Size <10 µm: Acid Orange 171 with particle size less than 10 µm is used in pigment formulations for inkjets, where it enables smooth dispersion and sharp color definition. Stability Temperature 120°C: Acid Orange 171 with stability temperature of 120°C is used in high-temperature printing, where it maintains structural integrity and color stability. Water Solubility 50 g/L: Acid Orange 171 with water solubility of 50 g/L is used in aqueous dye baths, where it allows for rapid dissolution and even shade distribution. pH Stability Range 4-7: Acid Orange 171 with pH stability range 4-7 is used in acid dye formulations, where it supports pH-dependent process reliability and durability. |
Competitive Acid Orange 171 prices that fit your budget—flexible terms and customized quotes for every order.
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Acid Orange 171 stands out for its strength of hue and robust performance in textile dyeing and ink manufacturing. Over two decades in our production facilities have allowed us to fine-tune its properties, drawing on real-world feedback from technicians and experienced dyers. This dye carries the C.I. number 12285, belonging to the acid azo class. Unlike some orange pigments that show inconsistency across fiber types, Acid Orange 171 maintains stable shade and penetration on nylon, wool, and silk blends.
Our teams invest in high-purity, well-dispersed product to reduce dusting and reactivity issues down the line. Years ago, we noticed customers applying liquid forms of orange dyes were experiencing compatibility challenges with certain fixers. We shifted to a granule and powder system, optimizing for fewer handling losses and greater reliability in steeping and mixing. This move cut unnecessary pigment loss in the dye bath and helped keep drainage color levels within discharge limits—a concrete win for both the operator and the environment.
Monitoring every batch, our colorimetric evaluations take place side by side with end-use testing. We hold every batch to these standards: consistent color strength, minimal residual salts, and stable pH. The shade—distinctive deep tangerine—remains strong across varying water hardness. Acid Orange 171 tenaciously holds to the fiber, minimizing issues of back-staining or color bleeding in downstream finishing. Feedback from weaving mills proves this point: less time wasted on re-washes, fewer complaints about shade drift, and stronger confidence in repeat orders.
The performance benchmarks we set for Acid Orange 171 do not come from laboratory theory alone. Our plant operators watch real dye liquor as it moves through every phase of production. Humidity, temperature, and stock holding times all influence finished quality, so we build flexible parameters within the milling and drying stages. There are mornings when I’ve stood alongside the production operators, watching freshly washed batches dry on the trays, looking for granule clumping or sticky patches—problems that cause headaches in the color kitchen. Addressing those details at the source saves us later calls from partners unhappy with dispersion in their machines.
Acid Orange 171 supports a spectrum of applications. On continuous dyeing ranges, the dye handles the rigors of tension and heat without excessive volatility. In the piece dyeing sector, moderate build provides reliable uptake even on fiber blends with variable finishing histories. Paper makers use it to impart brilliant shades without causing blockages or foaming, thanks to the pigment’s fine particle profile. Ink formulators tap into the dye’s compatibility with other acid and direct dyes, giving them a dependable base for complex shade curves.
Our relationships with finishers and converters have shaped the process for Acid Orange 171 since the start. Not all requests are easy. One long-term user running high-speed air-jet looms needed enhanced washfastness to withstand repeated laundering cycles at aggressive pH. Through direct plant trials and changes in our purification steps, we cut the presence of certain byproducts that contributed to color fading. The resulting improvement pushed Acid Orange 171 ahead of older alternatives.
In another case, a sporting goods manufacturer faced shade irregularity after over-dyeing nylon-based fabrics. Our application team captured every process parameter they used and ran small-scale trials back at our site. This attention to the full dyeing cycle—water composition, time, agitation—revealed that Acid Orange 171’s migration profile fit their particular set-up, reducing off-shade spots seen with their previous material. The customer secured a higher product acceptance rate as a result.
Not all feedback highlights strengths; sometimes it drives upgrades. A technical cloth producer flagged a minor streaking problem triggered by a period of unseasonably high humidity in their plant. After reproducing the conditions in our climate-controlled application lab, we re-balanced the anti-caking agents in Acid Orange 171. Field reports since then show their concern resolved, confirming the practical value of our flexible workflow.
Across global textile markets, shifting price points and heightened environmental scrutiny keep us on our toes. Acid Orange 171 gives us a chance to deliver steady product quality without cutting corners on compliance or performance. Some dyes struggle with unpredictable results batch to batch, especially as raw material sources fluctuate. By sourcing from vetted partners and keeping tight controls on our own purification, we control trace metals and minimize amine byproducts—a step especially important now that end users demand complete transparency.
Our color strength checks never leave room for half measures. We track each lot’s resistance to light, heat, and various finishing chemicals, not just the dry fastness shown on a datasheet. For users in high-wear environments—be it upholstery, automotive textiles, or reusable shopping bags—this broader testing scope gives assurance that their final product won’t show embarrassing fading, chalking, or color migration after only a few uses.
Sulfate and sodium content in the dye are real-world concerns, especially for operators who run closed-loop effluent systems or need to adhere to strict international discharge limits. Monitoring these—rather than letting residual salts creep up—lets us support customers’ environmental management goals. It has not been uncommon for industry players to de-emphasize tighter controls in this area, but we see clear long-term value in spending the extra production time to get it right.
The acid dye family covers a wide array of oranges, each with strengths and weaknesses. Some manufacturers offer alternatives with fast application but narrow operating windows, demanding stringent pH and temperature control. From repeated trials, we see users gravitate toward Acid Orange 171 because it delivers workable shade build up across variable feedwater and fabric conditions. It allows for short liquor ratios and handles a degree of operator variability without severe swings in final color.
There are competitors in the direct dye sector promising quick application, but they often fall behind in washfastness or bleed. On the other end, older generations of acid dyes tended to struggle with batchwise shade variation and excessive dusting at the weighing stage, complicating in-plant hygiene and making color consistency harder to manage. Acid Orange 171, with its higher granule stability and free-flowing texture, skips these issues.
Clients dealing with strict ISO or OEKO-TEX requirements find the trace impurity levels—and clear sourcing documentation—helps with audit readiness. Some other orange options in the acid class lever certain metal-based complexing agents. We made a deliberate choice years ago to avoid these, side-stepping the complications that come with heavy metals in wastewater and downstream recycling.
Years of supplying Acid Orange 171 have taught us that strict paperwork or impressive laboratory reports do not guarantee success on the shop floor. Dye pan operators deal with fluctuating loads, machine idle periods, and the unpredictability of blended stock. The slight but persistent clumping sometimes seen in lesser grades of powder dye can sideline a whole shift due to stoppages or filter changes. We instruct production personnel on-site to observe the wet-out and initial strike of this dye granule every month, ensuring performance matches the benchmark.
Consistently, we see feedback from printers and dyers that the workability and fast wetting of Acid Orange 171 help them shave minutes off changeovers. Increased line uptime adds real value, easily outweighing the negligible cost difference to a less-refined dye. The process improvements reflect not just our technical standards, but the close dialogue between our application specialists and the people who rely on this product every day for their business and reputation.
Our production batches go into apparel, home textiles, technical textiles, and even select paper grades. The route from our finished goods warehouse to customer production lines often travels across borders, climates, and compliance regimes. Many of the issues that sneak up on other dyes—tendency to foam or form agglomerates during make-up, lag in color build, tendency for migration at the drying stages—have been weeded out through years of cooperation with frontline users.
Customers use Acid Orange 171 for sportswear, outdoor equipment, and school uniforms largely because its shade survives repeated rain and sun exposures. In those applications, key decision-makers look past shelf appeal and focus on actual customer complaints or returns. The low migration and minimal bleed traits of this dye help organizations pass critical post-production tests and retain their compliance certifications.
In automotive textiles, cabin textiles often demand orange accents that survive severe UV and heat cycling. We have worked with automotive suppliers running accelerated testing cycles, and Acid Orange 171 regularly survives the abuse, keeping orange tone clear after months on the road.
Paper manufacturers utilize this dye during size press coloration to produce vivid sheets with reduced foaming and minimal felt contamination. The smoother pigment profile helps keep mill rolls clear, so less downtime interrupts output. Technical reports following trial runs come back confirming that, even on high-speed machines, Acid Orange 171 presents low risk of streak formation or filter clogging.
Raw material changes, shifting environmental regulations, and end user expectations will continue to shape the future of acid dyes. Our past experience with legacy grades taught us to keep batch controls tight and take no shortcuts with trace impurity cleanup. In practice, this means running checks not only at raw material intake but also after each blending and milling cycle. By controlling losses and reducing rework, we keep energy and water use low—tangible steps that feed into customer value and waste management goals.
When industry standards shift, as seen with new REACH updates, we review every ingredient down to minor process aids. Years back, we revised our surfactant system in Acid Orange 171 to drop out a suspect compound flagged for aquatic toxicity. This wasn’t forced by regulation at the time; it was prompted by comments from process partners and downstream customers seeking cleaner operations.
Our product managers keep a line open to customers not just at the point of sale, but during the off-season, listening for signs of operational drift. If special shades, process cycles, or water treatments trigger unexpected results, our technical team returns feedback directly to the production floor. Recent example: a customer switching from municipal water to well water saw slight changes in color depth on certain lots. We worked directly with their process engineer, adjusting the liquor composition and modifying pre-dilution steps to restore predictable results. No specification sheet can replace that situational responsiveness.
Achieving stable, repeatable color outcomes takes more than controlling a few headline parameters. Product quality lives in the cumulative details: consistency of granule shape, rapid and complete wetting, precise shade control, and well-tracked impurity clearance. Partnering with dye house teams since the inception of Acid Orange 171, we have built confidence through slow, patient progress and an open-door approach to feedback.
Superficial changes—reshuffling a surfactant or coloring component—do little for real-world reliability. Operators know the frustration of sediment build-up, and our approach scrubs these sources away, batch after batch. Hazard control and compliance are inseparable from our daily operations, not just a checklist for regulatory filings. Each step seeks to secure cleaner effluent, safer handling, and robust color that drives repeat orders and helps customers protect their downstream integrity.
As new markets and more demanding standards emerge, Acid Orange 171 will continue to adapt without losing the dependability developed from years of practical use.
We focus on real-world challenges, not theoretical optimization. There is no value in a batch that performs perfectly in a lab but lets users down on the line. Open conversations with operators and dyestuff handlers direct our improvements and push the entire industry toward better reliability and cleaner production. A dye like Acid Orange 171 would not succeed for long if it failed its basic promise: to deliver color, stability, and predictability through batches, years, and generations of machinery.
Sourcing trusted raw materials, verifying recycled content, qualifying new process aids only after risk assessments—these steps keep the foundation of our product strong. We remain aware of new ways to cut down salt content and introduce even more sustainable process chemistry, aligned with requests from those who must live, work, and compete using what we make. For us, every customer claim, each field trial, and every offhand comment from a production partner feeds into the slow, incremental journey of improvement.
Acid Orange 171 carries decades of hands-on, production-floor knowledge from people who test, clean, mix, and finish every day. That shared experience means the dye moves forward—not just to suit changing machinery or market tastes, but to build value through substance, reliability, and shared trust.