Yudu County, Ganzhou, Jiangxi, China sales3@liwei-chem.com 748718781@qq.com
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Solvent Red 179

    • Product Name Solvent Red 179
    • Chemical Name (IUPAC) 1-[(2,4-Dimethylphenyl)azo]-2-naphthol
    • CAS No. 6829-05-6
    • Chemical Formula C30H24N2O3
    • Form/Physical State Powder
    • Factory Site Yudu County, Ganzhou, Jiangxi, China
    • Price Inquiry sales3@liwei-chem.com
    • Manufacturer Anhui Liwei Chemical Co., Limited
    • CONTACT NOW
    Specifications

    HS Code

    887824

    Cas Number 1669-99-8
    Chemical Formula C26H24N4O2
    Molecular Weight 424.50 g/mol
    Appearance Red powder
    Solubility Soluble in organic solvents; insoluble in water
    Melting Point 180-182°C
    Density 1.21 g/cm³
    Einecs Number 216-780-8
    Color Index Number 564150
    Applications Used as a dye for plastics, petroleum products, and synthetic resins

    As an accredited Solvent Red 179 factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

    Packing & Storage
    Packing Solvent Red 179 is packaged in a 25 kg fiber drum with a sealed plastic liner, labeled with chemical details and safety warnings.
    Container Loading (20′ FCL) Container Loading (20′ FCL) for Solvent Red 179: Typically holds 8–10 metric tons, packed in 25 kg fiber drums or bags on pallets.
    Shipping Solvent Red 179 is shipped in tightly sealed containers, typically fiber drums or HDPE drums, protected from direct sunlight, moisture, and extreme temperatures. The chemical is transported according to regulations for non-hazardous dyes, with clear labeling and documentation. Proper handling and storage ensure product integrity during transit.
    Storage Solvent Red 179 should be stored in a tightly sealed container away from heat, sparks, open flames, and direct sunlight. Store in a cool, dry, well-ventilated area, and keep separate from strong oxidizing agents. Avoid moisture and incompatible materials. Ensure proper labeling and use secondary containment to prevent spills. Follow all relevant safety data sheet (SDS) recommendations for safe chemical storage.
    Shelf Life Solvent Red 179 typically has a shelf life of 3–5 years when stored in tightly sealed containers, away from heat and light.
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    Competitive Solvent Red 179 prices that fit your budget—flexible terms and customized quotes for every order.

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    Tel: +8615365186327

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    Certification & Compliance
    More Introduction

    Solvent Red 179: A Technically Reliable and Flexible Solution for Industries That Demand More from Colorants

    Our Hands-On Approach to Producing Solvent Red 179

    Solvent Red 179 carries a reputation in our production lines for its vivid deep red tone and outstanding performance across a range of applications. As chemical manufacturers, we have watched this dye become a go-to solution for customers who require stable color, consistent particle quality, and adaptability. Over the years, we’ve refined our process and closely managed each batch to ensure that every order of Solvent Red 179 meets the standards that our clients and their end-users expect. Our plant technicians monitor everything from raw material input to final drying conditions, minimizing color drift and eliminating impurities that disrupt finished products. Field feedback keeps us aiming higher, as paint and plastic customers clearly favor reliable dispersibility and antimicrobial resistance in Solvent Red 179.

    Chemical Structure and Its Impact on Color Strength

    Solvent Red 179, an anthraquinone-based dye, owes its sharp crimson appearance to its stable molecular backbone. Compared to traditional monoazo reds, the anthraquinone structure gives Solvent Red 179 better resistance to light and heat. Through experimentation on our blending lines, we have consistently noticed this dye holds its hue under outdoor exposure and elevated oven temps. Users in plastics and synthetic fibers often look for precisely this quality, since many reds fade quickly under sunlight or production heat. Controlling particle size during the milling stage allows us to maximize tinting strength and avoid sedimentation, a headache for masterbatch manufacturing. We chose equipment that delivers tighter particle size distribution, so repeat jobs match earlier runs without rework or costly rejects.

    Practical Applications We See Most Often

    Every order from our facility tells a story about how Solvent Red 179 adapts to real-world challenges. Large coating companies request our dye for high-gloss furniture lacquers, industrial transport coatings, and retouching paints used on commercial vehicles. The reason often boils down to pigment compatibility: Solvent Red 179 blends well with major solventborne resin systems, including nitrocellulose, acrylics, and polyurethanes. True-to-sample color is critical for automotive repairs or branded architectural elements, where even subtle chromatic drift is unacceptable under scrutiny.

    We also ship tonnage to plastics manufacturers who depend on stability during injection molding and extrusion processes. This dye has proven itself in coloring polystyrene, acrylic sheets, PMMA displays, SAN household goods, and various fibers for upholstery and carpets. Color fastness after melt processing has always been the test that cuts through marketing claims. Time and again, Solvent Red 179 shows less fading and smearing than cheaper alternatives. It also provides the brilliance that luxury consumer goods require to stand out on store shelves or showroom floors.

    Meeting Growing Environmental Demands

    Production efficiency matters, but lately we’ve noticed more attention on environmental profiles. Large buyers now ask about REACH registration, VOC content, and residual solvent migration — their auditors want evidence, not just assurances. We responded by tracing each input from our suppliers and tightening our own emissions controls. Every batch of Solvent Red 179 reaches the market with documentation to support compliance with European Union chemical safety rules and local standards in Asia and North America. For high-end clients building export business, this provides peace of mind during customs or regulatory checks.

    To minimize waste, we invested in closed-loop washing and better dust containment. This not only keeps the workplace safer but also improves yield per tonne of raw material. We’ve studied the downstream impact carefully. Our partners using Solvent Red 179 in masterbatch extrusion report less pigment plate-out and better machine cleanliness, which brings fewer unplanned line stoppages and a reduction in cleaning solvent use. These small shifts add up over a fiscal year and give the dye an edge over older, messier grades that require frequent maintenance shutdowns.

    How Solvent Red 179 Stacks Up Against Other Red Dyes

    Real-world manufacturing never runs on theory. Clients routinely ask, “How does this compare to other reds on the line?” Over the last decade, we’ve trialed many alternatives like Solvent Red 24, Solvent Red 164, or monoazo counterparts. While some deliver similar color, they often trade away durability, bleed resistance, or gloss stability. Azo-based reds may offer lower material cost, but their lightfastness drops sharply in outdoor coatings or sun-exposed plastics. Solvent Red 164 often throws a magenta cast and can complicate blending if a pure red is required. Dyes such as Solvent Red 24 conjure a warm red, yet struggle with migration in thin polyolefin films, which leads to color blooming and handling complaints.

    Our own experience—both in small batch production and long-run jobbing—shows Solvent Red 179 leads on weatherfastness and solvent compatibility. Textile clients appreciate its repeatable shade on polypropylene, polyester, and acetate, where off-shade variation erodes brand confidence. Importantly, it delivers this performance without drifting toward orange, a complaint we hear about lower-end alternatives. The combination of cost efficiency, true red hue, and technical reliability turns Solvent Red 179 from a simple dye into an enabling material for next-generation color solutions.

    Handling and Operational Tips from the Factory Floor

    Our logistics and plant teams often field questions about safe handling and best practices for this dye powder. Solvent Red 179 comes in both microgranular and free-flowing powder forms. The microgranular type tends to generate less airborne dust, which helps bulk processors maintain a cleaner workspace and keeps personnel exposure low, especially in high-throughput color concentrate lines. Process operators favor this cut for automated feeding systems, where clumping or bridging can disrupt production schedules. We recommend ventilated dosing hoppers and sealed transfer lines; regular filter changes keep airborne particles at bay. Since this dye resists static build-up, downstream clogging is less of a risk versus highly electrostatic pigments.

    Warehouse managers value our double-bagged packaging, which keeps moisture content below stated thresholds even during monsoon shipping. We monitor each stage for contaminants and out-of-spec moisture or foreign material, which can reduce dispersion efficiency or impact color strength. Routine sieve checks during packing reassure both us and our customers of product reliability.

    Addressing Customer Feedback and Process Control

    We treat complaints and feedback as a roadmap for improvement. In the past, a few clients reported batch-to-batch shade inconsistency. We used those findings to improve our mill calibration and quality sampling frequency. Our QC laboratory now carries out spectral and gravimetric analysis on samples pulled hourly, not just at shift changes. This brings tighter color control, sharper peak response, and peace of mind for repeat customers.

    Technically demanding clients, particularly multinational paint groups, value this attention to color precision. Several print ink manufacturers switched to Solvent Red 179 thanks to its robust, stable shade under heat-set and UV-cure conditions. We tune particle size at micron scale to match the print process—coarser for paper and label inks, finer for high-gloss digital and gravure applications. Every time we tweak the process, we share the data with end-users who want in-depth technical support. Fewer returns, fewer disruptions, greater trust.

    Efficiency and Cost in Bulk Industrial Use

    Price pressure remains a constant factor in global supply. Our procurement team sources raw intermediates with an eye for price stability and reliable delivery, so we can hold the line on cost without compromising grade quality. Our clients in large-scale injection molding or film production need product delivered on time, at competitive rates, and in packaging optimized for bulk handling.

    Solvent Red 179 proves its value by reducing downtime and cleanup costs. High concentration lets processors use smaller dose rates, increasing yield per drum. Users in high-speed extrusion appreciate the clean melt flow and the absence of gels or agglomerates, which previously required frequent filter changes and increased machine wear. As market conditions fluctuate, we exchange information with our customers about expected demand, lead time forecasts, and inventory management strategies, supporting a win-win approach for all partners in the supply chain.

    Developing Custom Solutions: How R&D Shapes Product Improvements

    Real-world production doesn’t end with a single grade or particle cut. Our R&D chemists regularly collaborate with large clients to adjust Solvent Red 179 for special requirements. Some packaging film groups require blends with heightened fade resistance and food-contact compliance; we modify the process or add scavengers as needed. For automotive interior panels, an extra heat stabilizer ensures the dye retains color after UV exposure during car assembly and later use. Specialty fiber manufacturers look for grades with faster filterability and improved softening, so process downtime stays minimal.

    Feedback from these segments directly influences our research investments. Our laboratory keeps pilot-scale gear running year-round, allowing small batches for trials or regulatory validation. This flexibility encourages customers to experiment without major upfront cost or supply disruption. Whether the request targets broader compatibility with new resins or microgranulation for fluidized bed coating plants, our team takes customer input as a challenge to improve.

    Mitigating Supply Chain and Logistic Challenges

    Supply interruptions can disrupt downstream production and damage customer trust. Over the last few years, we doubled our on-site storage capacity and partnered with regional transport carriers to safeguard against transit delays. Each order receives a tracking record, and any deviation triggers proactive alerts. During major global disruptions, this setup allowed us to shift inventories and locate backup stocks close to ports or end-use regions.

    Smaller converters working on just-in-time contracts especially benefit from this steady supply. Factory managers know that a missed dye shipment can halt an entire week’s production, costing far more than the colorant itself. By managing physical inventory ourselves, and blending finished product only against firm orders, we help cushion those clients from volatile shipping cycles and regional shortages. Our sales and shipping teams coordinate closely, providing accurate delivery timelines and minimizing unpleasant surprises.

    Addressing Current Industry Trends: Health, Safety, and Regulation

    Stringent health and safety rules are now the new normal in every sector, from coatings to packaging. Auditors look closely at heavy metal content, aromatic amines, and potential carcinogens in every pigment and dye shipment. Over ten production cycles, we re-examined our raw purchasing vetting and final product spectrum to keep hazardous impurities below modern legal benchmarks. Our certificates support migration testing for food-contact articles, which makes Solvent Red 179 suitable for packaging applications where compliance with FDA, EU, or Mercosur rules matter.

    Health and safety staff, both on our side and for downstream users, review lot histories and batch records in real time. We find this transparency prevents disputes and builds stronger, long-term partnerships with leading converters and brand owners. Where questions arise, our lab staff stand ready to provide supporting data or third-party validation results. We also regularly invite client auditors to our facility, welcoming outside scrutiny because we see shared success as the backbone of any manufacturing relationship.

    Quality Assurance Built on Direct Manufacturing Experience

    Behind every shipment stands a team that understands that consistency equals credibility. Over the decades, we’ve learned that delivering what we promise makes all the difference in client retention and market reputation. Our technicians combine everyday vigilance with robust process automation to eliminate human error, catching outliers early with automated colorimeters and online spectrophotometers. This technology helps us distinguish between subtle shade differences invisible to the naked eye, so product performance in field applications matches specification sheets.

    End customers—paint shops, plastics molders, fiber spinners—depend on every drum to deliver the same color as the last. By managing all stages in-house, we guarantee no changes creep into the mix, even as we improve plant throughput and energy efficiency. Each customer order launches only after a rigorous final review, never leaving our dock unless all in-process controls confirm quality standard achievement. Our experience tells us cutting corners might deliver a short-term gain, but puts market relationships at risk lastingly.

    Looking Forward: Why Solvent Red 179 Remains a Core Solution

    Throughout the supply chain, end-users and converters see tangible value in the reliable, deep red shade and chemical resilience of Solvent Red 179. Competitors constantly push low-cost substitutes, but the repeat stability and technical support from a manufacturer with direct production experience can rarely be matched. Every batch shipped out our doors reflects decades spent refining equipment, monitoring impurity levels, and solving unique color challenges for customers in every segment—from decorative finishes to highly engineered plastics.

    Regulations, market expectations, and customer needs will keep evolving. We remain committed to partnership, open communication, and hands-on technical improvements that help our clients meet new standards without sacrificing performance, color depth, or line productivity. In our daily work, Solvent Red 179 continues to demonstrate why a thoughtfully managed, technically advanced dye can mean the difference between wasted batches and successful, high-value products on store shelves worldwide.