Tengfei Creation Center,55 Jiangjun Avenue, Jiangning District,Nanjing admin@sinochem-nanjing.com 3389378665@qq.com
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Fast Red ITR

    • Product Name Fast Red ITR
    • Alias naphthol AS-TR
    • Einecs 235-548-3
    • Mininmum Order 1 g
    • Factory Site Tengfei Creation Center,55 Jiangjun Avenue, Jiangning District,Nanjing
    • Price Inquiry admin@sinochem-nanjing.com
    • Manufacturer Sinochem Nanjing Corporation
    • CONTACT NOW
    VTB
    Specifications

    HS Code

    878992

    product_name Fast Red ITR
    chemical_family Azo dye
    CI_number 37560
    CAS_number 1229-55-6
    molecular_formula C15H13N3O3
    molecular_weight 283.28 g/mol
    appearance Red powder
    solubility_in_water Slightly soluble
    melting_point 295°C (decomposes)
    application Biological stain/chromogenic substrate
    storage_conditions Store at room temperature, away from light
    hazard_classification Irritant

    As an accredited Fast Red ITR factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

    Packing & Storage
    Packing Fast Red ITR is packaged in a sturdy, sealed 100-gram amber glass bottle, featuring chemical hazard labeling and handling instructions.
    Shipping Fast Red ITR should be shipped in tightly sealed containers, protected from light and moisture. Handle with care, using appropriate protective equipment. Store and transport in accordance with local, state, and international regulations for hazardous chemicals. Avoid exposure to incompatible substances and ensure clear labeling of all shipping containers.
    Storage Fast Red ITR should be stored in a cool, dry, and well-ventilated area, away from incompatible substances such as strong oxidizers. Keep the container tightly closed and protected from light and moisture. Store at room temperature, avoiding excessive heat. Ensure proper labeling and prevent dust generation during handling. Follow all relevant safety guidelines for chemical storage.
    Application of Fast Red ITR

    Applications of Fast Red ITR in Industrial Manufacturing

    Fast Red ITR serves as a high-performance monoazo pigment widely recognized for its excellent color strength, resistance properties, and process stability in various industrial manufacturing sectors. As an original manufacturer with years of pigment development expertise, we enable precise incorporation into advanced production lines where stringent compliance and process consistency drive formulation choices and end-use performance.

    1. High-Performance Coatings for Industrial Metal Finishes

    Our customers in the coatings industry select Fast Red ITR to achieve intense, stable red hues in heavy-duty metal finishes, including machinery, automotive components, agricultural equipment, and metal hardware. The pigment’s well-documented resistance to solvents, heat, and outdoor weathering meets rigorous requirements for color retention and safety in exterior and industrial-grade paints. Integration typically involves premixing in the pigment dispersion or grinding phase before letdown, supporting both solvent-borne and water-borne systems.

    Industry compliance standards

    • EU REACH Regulation (EC) No 1907/2006
    • EN 71-3 (Safety of Toys – migration of certain elements)
    • Directive 2010/75/EU (VOC emissions in paints & varnishes)
    • ISO 12944-6 (Protective Paint Systems for Steel Structures)

    Typical usage ratio

    • 1.0–5.0% by total formulation weight; concentration optimized based on desired opacity and film thickness, with higher levels for protective primers and direct-to-metal finishes.

    Downstream process integration

    • Added during pigment dispersion, typically via high-speed milling or bead grinding before combining with binders and additives in letdown for uniform coloration.

    Final product types

    • OEM and refinish automotive paints
    • Anti-corrosive primers and topcoats for appliances and equipment
    • Powder coatings for metal furniture and fixtures
    • Protective coatings for construction steelwork and pipelines

    2. Plastic Masterbatch and Compounds for Consumer Goods

    The pigment delivers brilliant, fade-resistant red shades in polyolefin, PVC, ABS, polystyrene, and engineering plastic compounds used in housewares, toys, packaging, and technical parts. Compounding operations utilize the pigment in high-shear extrusion and pelletization processes to secure dispersion and color stability throughout multiple thermal cycles, ensuring both regulatory compliance and durable product appearance in demanding end-uses.

    Industry compliance standards

    • RoHS Directive 2011/65/EU (Restriction of Hazardous Substances)
    • FDA 21 CFR 178.3297 (Colorants for Polymers, for indirect food contact applications where applicable)
    • ISO 9001:2015 (Quality Management Systems for compounding)
    • EN 71-3 (Toy Safety – heavy metal migration limits for colored plastics)

    Typical usage ratio

    • 0.05–2.0% pigment by polymer weight, depending on hiding power, application type, and final product thickness; masterbatch typically formulated at up to 30% pigment for letdown ratios on line.

    Downstream process integration

    • Introduced in pigment masterbatch production via twin-screw extruder, then let down in injection molding, blow molding, or film extrusion lines according to customer coloration and performance needs.

    Final product types

    • Colored household containers
    • Children’s toys and play equipment
    • Packaging films and bottles
    • Electrical appliance housings and accessories

    3. Inks for Flexible Packaging and Label Printing

    Advanced flexographic and gravure ink manufacturers rely on Fast Red ITR for its superior lightfastness and chemical resistance, critical in solvent-based, water-based, and UV-curable inks tailored for food and non-food packaging applications. Pigment dispersion quality directly supports print process consistency and high-resolution results even under demanding high-speed, large-volume production environments common to modern packaging converters.

    Industry compliance standards

    • Swiss Ordinance SR 817.023.21 (Materials and Articles in Contact with Food for Printing Inks)
    • GMP Regulation (EC) No 2023/2006 for ink manufacturing
    • ISO 2846-1 (Color and Transparency of Printing Ink Sets)
    • EuPIA Exclusion Policy compliance for food packaging inks

    Typical usage ratio

    • 10–20% pigment solids in ink color concentrate; final ink typically contains 1–6% depending on print coverage, print method, and end-use migration limits.

    Downstream process integration

    • Dispersed in pre-milling phase using triple-roll mill or high-shear mixer, with post-milled dispersions blended in letdown stage to formulate finished inks for application on printing presses.

    Final product types

    • Printed flexible food pouches
    • Plastic and paper labels
    • Folding cartons for cosmetics and pharmaceuticals
    • Industrial adhesive tapes and wrap films

    4. Pigmented Construction Materials for Decorative Surfaces

    Construction material producers employ Fast Red ITR to impart strong, lasting color to formulated dry-mix mortars, facade renders, terrazzo, and polymer-modified cements. The pigment’s thermal stability and resistance to alkaline environments support its use in building materials subjected to outdoor exposure and high-use interior surfaces, while compliance with migration and environmental release standards forms a critical purchasing criterion among large-scale construction suppliers.

    Industry compliance standards

    • EN 12878 (Pigments for the coloring of building materials based on cement and/or lime)
    • REACH Annex XVII restrictions—non-carcinogenic pigment classification
    • ISO 9001:2015 (Quality Management for building products)
    • DIN 53770 (Testing of inorganic pigments in construction applications)

    Typical usage ratio

    • 0.5–3.0% by total dry mix for mortars and renders; ratios fine-tuned through lab batch trials to meet color intensity and dispersion in specific cement or lime formulations.

    Downstream process integration

    • Dry-blended with mineral aggregates and cementitious binders before hydration, or incorporated as a pre-dispersion in liquid admixtures for factory-prepared systems.

    Final product types

    • Pigmented plasters and facade renders
    • Precast concrete tiles and paving stones
    • Terrazzo flooring and marble chips
    • Decorative wall panels and architectural moldings

    5. Synthetic Leather and Textile Printing Pigment Application

    Within the synthetic leather and textile printing sectors, Fast Red ITR achieves vibrant yet stable reds in polyurethane, PVC leather coatings, and pigment printing pastes for cotton or polyester blends. Its compatibility with crosslinking resin systems and resistance to migration under repeated abrasion and washing cycles assure compliance for articles exposed to end-use mechanical and weathering stresses, from fashion goods to technical textiles.

    Industry compliance standards

    • OEKO-TEX Standard 100 (Textile Safety: human-ecological requirements)
    • EN ISO 20471 (High-visibility clothing colorfastness)
    • ISO 105-X12 (Color fastness to rubbing for textiles)
    • REACH Regulation requirements for azo pigments in textiles

    Typical usage ratio

    • 1–4% pigment by total print paste or synthetic leather coating weight; final loading based on layer thickness, matrix polymer, and end-use color requirements, validated by standardized fastness tests.

    Downstream process integration

    • In synthetic leather, introduced in the pigment blending stage for coating formulations applied to release paper or directly onto textile substrates through transfer coating or calendering; for textile printing, dispersed in aqueous paste before screen or roller printing and cured via heat fixation.

    Final product types

    • PU and PVC synthetic leather for footwear, bags, and upholstery
    • Screen-printed apparel and sportswear fabrics
    • Decorative wall coverings and contract textiles
    • Reflective and fashion garment trims
    Free Quote

    Competitive Fast Red ITR prices that fit your budget—flexible terms and customized quotes for every order.

    For samples, pricing, or more information, please call us at +8615371019725 or mail to admin@sinochem-nanjing.com.

    We will respond to you as soon as possible.

    Tel: +8615371019725

    Email: admin@sinochem-nanjing.com

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    Certification & Compliance
    More Introduction

    Meet Fast Red ITR: A Closer Look from the Factory Floor

    A Craft Rooted in Chemical Manufacturing

    Fast Red ITR has played a dependable role in the pigment toolbox of coating and ink makers for decades. Every drum of Fast Red ITR rolling off our lines reflects a hands-on approach to batch quality and performance. For us, pigment work isn’t just formula sheets and testing labs — it’s watching raw materials transform into colorants that pull their own weight on a customer line. Reliability starts here, with every blend, every filtration cycle, every check against fading or strength shift.

    What Sets Fast Red ITR Apart

    We produce Fast Red ITR as an azo pigment, building each batch from aromatic amines and coupling agents that have undergone strict in-house vetting. This pigment carries the Color Index designation Pigment Red 49:1 and finds its strength in a distinct bluish shade of red. Unlike traditional organic reds that can lean orange or purple, Fast Red ITR tracks toward clean reds with strong chroma, making it a favorite for formulators chasing specific target shades. The particle chemistry supports bright color at low dosages — that’s a direct outcome of the controlled precipitation and milling we run on every order, not the result of just following a recipe.

    From the first day of blending, we focus on purity. Trace metal levels, moisture, water solubility: these specs aren’t mere checkboxes. They determine if a pigment batch will work in demanding applications like high-clarity inks or specialty plastics. Our team understands that a pigment without tight control loses out on dispersion performance and color repeatability later. We keep iron and copper at trace levels, knowing these can catalyze unwanted reactions or cause staining. The goal? Open up the widest application window, not lock users into narrow process parameters.

    Model Consistency, Batch After Batch

    Factories count on pigment batches running true. We don’t play games between lots. Fast Red ITR rolls out with finely tuned average particle sizes, a minimum tinting strength, and tight constraints on color difference (delta E). These aren’t marketing lines. Our own formulation team doesn’t like pigment surprises, so we translate that into our QA culture — double-checking, matching panels and drawdowns, running pilot dispersions before the main tank is cut loose. We don’t sweep off-spec lots under the rug for a quick sale. If we get a reject, it gets reprocessed or scrapped.

    We don’t set a one-size-fits-all approach, either. Customers shaping offset litho inks have different grind targets than those casting polyolefin packaging films. Our tech staff listens to what people want their pigment to do, not the other way around. Over the years, we’ve built custom variants within the Fast Red ITR family: granular or powder, treated for low-dust handling, or boosted for solvent resistance. If you see a competitor boasting “universal suitability,” they’re smoothing away lab headaches, not solving them.

    Specifications We’ve Learned to Sweat

    Fast Red ITR offers more than a catalog color. Ask around, and you’ll hear that some batches from other manufacturers end up uneven in dispersion or prone to flocculation in high-shear mixers. We win over customers by showing our product lines up clean in both offset and gravure ink shops, as well as in plastics compounding lines that demand trouble-free color development. That reputation has roots: we watch every stage from diazotization to the final drying and micronization, tuning humidity, pH, and temperature until shade and strength stabilize.

    Our pigment ships out with targeted moisture levels, keeping product flowable in powders and avoiding surprises in automated dosing systems. Fines content matters — it can cause dusting, bridging, or filter blockage. By engineering mill circuits around each order, we avoid wide particle distributions that lead to batch inconsistencies on customer lines. These are the sorts of issues that ripple downstream if left unchecked, leading to uneven prints, clogging, or color drift. We see returns drop when customers switch to our batches, and that speaks louder than a technical data sheet.

    Usage That Reflects Real-World Demands

    Fast Red ITR goes into more than just a coating or a print run. It winds up embedded in packaging that survives international shipping, labels soaking up UV, and films flexed thousands of cycles on a bottling line. We send sample panels through actual sunlight, humidity, and chemical exposure tests — never just a simulated cabinet. Printers dealing with alcohol-based fluids value our pigment’s resistance to bleeding and extraction. Brand owners with strict food contact specifications insist on clarity around migration, trace metals, and binding chemistry. We don’t wait for a regulatory body to tighten rules before adjusting our sourcing or purification — that’s how we keep supply chains up and running, not just safe on paper.

    Plastics processors demand more than just stable shade; color must persist under the heat and shear of extrusion, without shifting or gassing out. Our approach targets both organic stability (no azo splits, no tailing) and physical robustness. Additive systems can interact with pigments in unpredictable ways, especially in complex polyolefin or styrenic formulations. We field real questions from these users — not just “will it blend,” but “will it keep the red after 200°C processing?” That keeps our team sharp, and our processes honed for more than lab-bench simplicity.

    What Experience Teaches About Pigment Differences

    Every pigment batch tells a story. You might ask two suppliers for Fast Red ITR and receive products that perform worlds apart. We’ve sampled competitors where high color strength forces a tradeoff — harder to grind out, generates haze, or clogs up doctor blades in printing. Others brag about chemical purity but fall short in long-term exposure, with reds fading out long before product shelf life demands. We learned years ago that some organic reds suffer from blooming — color leaching out into topcoats or plastic surfaces, especially under heat or UV stress. We design our grades to hold tight, lock color in, and avoid dusting or migration, because downtime (and wasted material) kills profit faster than a slick sales brochure ever admits.

    Some pigment makers push a generic Fast Red ITR on the market. They import intermediates, run a quick coupling process, and filter with little investment in particle control or finishing steps. We know from customer feedback that using subpar pigment can halt an ink line for hours, chasing out off-shade or gritty dispersions. That doesn’t fit our idea of partnership. We lock in raw material sources, run repeated filtration, double-check batch consistency, and document every stage — not just to satisfy regulatory auditors, but to ensure a printer can run from startup to shutdown without a hiccup.

    Supporting Coatings, Inks, and Plastics With The Right Chemistry

    Fast Red ITR finds its stride in a broad range of applications, but each sector presents a distinct challenge. In the paint and coatings world, film formation and gloss depend on pigment particle size and surface treatment. That’s why our pigment engineers worked with resin chemists early on to tune both untreated and modified variants, so coatings turn out strong, smooth, and easy to formulate. Acrylic, alkyd, and polyurethane bases each love or hate a pigment particle in their own way, so adjusting oil absorption, surface energy, or wetting agent compatibility gets built into the actual production — not left as a theoretical exercise.

    On the press floor, time matters as much as color. Lithographic, flexographic, and gravure processes all stretch pigment properties in different directions. Solvent compatibility, resistance to roller set-off, and anti-misting performance all drive our formula tweaks. Printers can’t wait out a poorly dispersed pigment, either. Fast Red ITR stands up to both manual and automated dispersion — no endless mill cycles, no excessive paste thinning, no dirtying the press with clumps. Customers tell us that production uptimes improve because the pigment flows, grinds, blends, and covers like it should.

    In plastics, cycle times and cost pressures are relentless. Our pigment has to weather compounding, moulding, and finishing without off-gassing, color loss, or interaction with stabilizers. Switch to a generic grade, and the phone starts ringing with reports of color blooming or patchiness. Fast Red ITR stands up to extraction by water, fats, or cleaning chemicals. Migration issues cut into production yields: that’s why we lock down metal content and resist disaggregation in polyolefins or vinyls. A big customer once sent us a block of failed parts using a bargain pigment — the color leached out, causing them to pull stock and rack up weeks of downtime. Preventing that starts in our factory, not theirs.

    Lessons Learned — and Shared — Over Years of Manufacturing

    Our team has walked countless customer facilities, troubleshooting print streaks or diagnosing color drift. Most production headaches trace back to pigment inconsistencies or lack of end-use testing. That’s what pushed us to build our own application labs. We don’t just run magnetic stirrers; we run actual offset presses, extruder lines, and dipping tanks. Giving our chemists a clear window into how their pigments act in real operations shortens development cycles — and heads off issues before drums even leave the plant.

    Quality isn’t about just chasing ever-tighter specs. It’s about understanding why a batch veers off, what trace impurities cause off-shade on a high-speed press, or why moisture content today means caking tomorrow. We invested in testing both the dry pigment and the finished compounding dispersion to get more than one snapshot. Each spec is the result of some previous customer challenge — lessons converted into tighter, smarter manufacturing.

    Environmental and Regulatory Measures in Practice

    Today’s standards for pigments keep getting sharper. Users expect full traceability and documentation, and some have regulatory guidelines that shift with every year. We work with food packaging and toy makers who take extractables and migration limits seriously, and who need fast compliance updates when regional laws shift. We don’t just monitor our supply chain; we intervene upstream if we notice off-spec intermediates. Environmental rules challenge pigment operations, especially about waste, solvents, and water use. Years ago, we shifted core operations to minimize process effluent, recycle wash water, and botanically filter air emissions to bring down VOC. Those changes hit production cost but brought reliability and peace of mind to customer operations. It takes longer, but it pays forward.

    We also field increasing questions about the biobased or “green” alternatives to standard azo pigments. While certain chemistries hold promise in terms of renewable raw materials, currently nothing replaces the performance, lightfastness, and affordability of Fast Red ITR in everyday coatings and plastics. We keep a close watch on emerging technologies and run internal pilots so when the transition comes, we’ll know firsthand what works and what falls short. Until then, we pledge full transparency, clear documentation, and rapid communication about risk and compliance status. The factory remains open to audits, sample pulls, and unannounced checks.

    Troubleshooting and Field Support — Built into Every Batch

    It’s not enough to ship drums with a hope and a prayer. We expect some pigment users to push our product well outside of our test ranges — trying faster dispersers, hotter melts, or new binder systems. We design our technical support around real user questions, not canned responses. If a batch doesn’t measure up in a given formulation or causes issues on press, our engineers won’t just transfer the call to a sales desk. They’ll run side-by-side comparisons, source old lot numbers for reference, and, if needed, visit sites to troubleshoot in real time. This open-door approach builds a feedback loop right into our production, so the next batch avoids the same pitfall.

    No two users run identical lines. Some find our pigment fits perfectly into waterborne dispersions; others swear by it in solventborne or oil-based applications. We maintain a reference library of customer formulations, with their permission, to guide future modifications or customizations. Field learning becomes factory know-how, not just a list of specs.

    How We See the Future of Fast Red ITR in an Evolving Market

    Demand for consistent, bright, and stable reds isn’t shrinking. End users want more stringent safety, migration, and purity profiles — even as batch sizes trend downward and turnaround times shrink. Our job is to keep pace, offering value beyond a drum price. That means advanced filtration, better energy management, new particle control options for sub-micron grinds, and ever-tighter color matching. We invest year after year in upgrading filter presses, introducing cleaner reactor lines, and automating grind checks. The goal — more reliable dispersions, fewer troubleshooting calls, and stronger customer partnerships.

    We respect the craft of coloring. Too many in the pigment trade cut corners, chasing fast sales with little traceability. Our promise delivers more than just a batch with a label; it delivers an operation’s confidence to run on schedule, produce shelf-stable goods, and reduce surprises down the line. If issues arise, they become engines for better practice and tighter control.

    Practical Advice for Pigment Users

    If you’ve struggled with batch-to-batch drift, off-shade runs, or complicated wetting problems, don’t wait for a machine fix. Start with the pigment. Examine not just its data sheet, but the consistency of batches and the responsiveness of the factory. Troubles from a weak pigment usually show up first in press downtime and complaint logs, not necessarily in initial drawdowns. Insist on clear traceability, open-lot references for reordering, and a partner who listens when your process shifts. Many challenges melt away when you stop settling for lowest-bidder pigment and invest in factory accountability.

    Our Fast Red ITR offers a case study in what persistence, commitment to quality, and a refusal to cut corners can achieve in pigment manufacturing. It outperforms because we build it that way, from raw material vetting to end-user support. Coloring isn’t just a science; for us, it remains a practical trade built on hard-won lessons from the plant floor.

    Reach Out, Share Your Challenges

    The world of pigments never stands still. Each year brings new application trends, tougher standards, and users with unique process quirks. We invite you to bring your toughest coloring challenges — and hold our Fast Red ITR to the test. Our team is ready to roll up our sleeves, learn from your line, and keep building a pigment that works as hard as you do.