Lithol Rubine WF

    • Product Name: Lithol Rubine WF
    • Alias: Pigment Red 57:1
    • Einecs: 257-573-7
    • Mininmum Order: 1 g
    • Factroy Site: Yudu County, Ganzhou, Jiangxi, China
    • Price Inquiry: admin@ascent-chem.com
    • Manufacturer: Ascent Petrochem Holdings Co., Limited
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    Specifications

    HS Code

    943071

    Product Name Lithol Rubine WF
    Chemical Class Azo Pigment
    Color Index Pigment Pigment Red 57:1
    Appearance Bright red powder
    Shade Bluish red
    Density G Cm3 1.6
    Oil Absorption G 100g 40-50
    Light Fastness 3-4 (on a scale of 1-8)
    Heat Stability Celsius 180
    Solubility Insoluble in water
    Main Applications Printing inks, paints, plastics
    Ph Value 6.5-7.5
    Moisture Content Percent Max 2.0
    Toxicity Non-toxic
    Resistance To Acid Good

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

    Packing & Storage
    Packing Lithol Rubine WF is typically packaged in a 25 kg net weight multi-ply kraft paper bag with inner polyethylene liner for protection.
    Shipping Lithol Rubine WF is typically shipped as a powder pigment in sealed, moisture-resistant bags or drums to prevent contamination and moisture absorption. Containers are clearly labeled with hazard information, including UN numbers if applicable. Standard shipping methods comply with local and international regulations for handling chemical substances, ensuring safe transport.
    Storage Lithol Rubine WF should be stored in a cool, dry, well-ventilated area away from direct sunlight and sources of ignition. Keep containers tightly closed and avoid exposure to moisture and incompatible substances. Use appropriate personal protective equipment when handling. Ensure storage areas are clearly labeled and comply with local regulations to prevent contamination or accidental release.
    Application of Lithol Rubine WF

    Purity 98%: Lithol Rubine WF with 98% purity is used in offset ink formulation, where it achieves high color intensity and print clarity. Particle size 0.3 µm: Lithol Rubine WF featuring 0.3 µm particle size is used in plastic color concentrates, where it ensures uniform dispersion and vibrant hue. Light fastness grade 4: Lithol Rubine WF with light fastness grade 4 is used in textile printing, where it delivers lasting color stability under light exposure. Melting point 320°C: Lithol Rubine WF with a melting point of 320°C is used in high-temperature coating applications, where it maintains thermal stability and color integrity. Oil absorption 42 ml/100g: Lithol Rubine WF with oil absorption of 42 ml/100g is used in flexographic ink production, where it optimizes rheology and ink flow. pH value 6.5: Lithol Rubine WF at pH value 6.5 is used in aqueous paint systems, where it enhances pigment compatibility and stability. Resistance to acids: Lithol Rubine WF with high acid resistance is used in packaging inks, where it prevents pigment degradation in acidic environments. Moisture content <1%: Lithol Rubine WF with moisture content below 1% is used in powder coating processes, where it minimizes clumping and improves handling efficiency.

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    Certification & Compliance
    More Introduction

    Lithol Rubine WF: A Manufacturer’s Perspective

    Understanding Lithol Rubine WF

    Through decades of experience in manufacturing pigments, Lithol Rubine WF stands out among our portfolio. Every batch demonstrates a consistency in color and performance that many formulators come to expect, especially for applications demanding reliable reds that resist fading and migration. Our years in the chemical industry have shown us that not all rubine pigments behave the same way. To us, the heart of Lithol Rubine WF lies in its advanced processing, leading to a bright bluish red that performs beyond expectations in both offset and flexographic inks.

    Lithol Rubine WF belongs to the group of monoazo pigments, specifically Pigment Red 57:1. As the manufacturer, we’ve taken raw intermediates derived from beta-naphthol and carefully controlled coupling reactions to shape crystal structure and particle size. This hands-on synthesis gives the pigment its characteristic brilliance and strength. Unlike imported substitutes or resold blends, Lithol Rubine WF produced at our facility goes through rigorous in-process testing at each step. The end result: a powder that consistently achieves the high tinting and coloring standards used by major ink houses across multiple continents.

    Specifications and Quality Standards

    We have optimized Lithol Rubine WF to strike a balance between strength and dispersion qualities. Standard physical characteristics include good flowability, a well-developed particle size distribution, and a controlled moisture content suitable for automated dosing systems. Our technical teams have found that too fine a grind can create dusting or caking, while larger particles dull color and complicate mixing. Through continuous equipment upgrades and operator training, we maintain a careful middle ground.

    From our direct observations and customer feedback, Lithol Rubine WF demonstrates excellent solubility properties in most standard printing ink vehicles, a feature ink makers value when batch times need to be kept tight. That solubility ensures even color development and prevents pigment flooding, which can introduce unwanted hues or transparency shifts on the press. Many of our clients in packaging prefer our pigment for this reason, reporting fewer press stoppages and more predictable batch-to-batch results.

    In application, Lithol Rubine WF provides a bluish red shade with a clean tone, pronounced brilliance, and remarkable transparency — particularly noticeable in overlays with yellow or rhodamine pigments. Our product does not show the excessive yellowing that sometimes plagues lower-grade competitors’ material, particularly after oven or UV exposure. This quality comes from close attention to raw material purity and controlled synthesis, ensuring contaminant ions remain below set thresholds.

    Common Uses in Industry

    Lithol Rubine WF meets the demands of commercial printers, packaging converters, and ink manufacturers who rely on a steady supply of bluish reds with dependable performance. Offset printers using sheetfed or web-fed presses repeatedly turn to our pigment for its keenness and intensity, especially for spot colors where reds must remain vivid and true across repeat jobs. Gravure and flexographic ink makers appreciate our product’s ability to wet-out quickly and evenly — minimizing mixing times and labor in high-throughput operations.

    We have seen increased use of Lithol Rubine WF for flexible packaging, labels, and point-of-purchase displays. Its compatibility with a range of vehicles and additives helps print technicians control viscosity and drying rates, which impact press speeds and final print quality. Formulators blending for special reds, magentas, or purples trust our pigment to maintain line definition without bleeding or haloing, even on challenging synthetic substrates.

    It’s rare to see a pigment perform well across complex applications, but Lithol Rubine WF works across the board: on coated or uncoated board stock, foil, film, or paper. Its resistance to acid, alkali, and soap ensures printed works survive downstream lamination, gluing, and handling. These characteristics let us confidently recommend Lithol Rubine WF for high-value packaging such as food wraps and branded cartons. The brilliance of its red maintains shelf visibility, contributing to our customers’ marketing goals.

    How Lithol Rubine WF Differs from Other Pigments

    As pigment manufacturers, we know the differences between brands extends beyond raw cost or color index number. Lithol Rubine WF is manufactured using high-purity intermediates and specific coupler selections, which grant it improved performance in resistance tests. Brands produced solely for mass economy often carry more byproducts or ions from incomplete reactions, leading to reduced color strength and stability. Through close in-house purification and filtering steps, we remove excess salts that otherwise promote migration and bleeding.

    Many users recognize that rubine reds sourced from traders or resellers sometimes introduce unpredictability into their production lines. Pigments differ in oil absorption, dispersibility, and even shade — the variables that impact how an ink lays down on paper, plastic, or board. We have invested in modern closed filtration and drying systems that keep batch results within tight tolerance limits. Routine quality controls mean our pigment gives consistent results every drum, every shipment.

    The market offers many grades of Pigment Red 57:1, from economic bulk to ultra-high performance. Lithol Rubine WF, developed through our site’s decades of focus on pigment chemistry, occupies an optimal place for high-end packaging, premium offset, and demanding label production. Where some products skew too orange or too pink, our pigment offers a balanced blue-red, minimizing the need for complex shade correction. Using high-efficiency dispersants, we minimize stubborn flocculation — a common problem with low-end pigments — saving time and cost on the customer’s shop floor.

    Meeting Real-World Demands

    Ink formulators operate with tight margins and little room for error. Lithol Rubine WF was shaped by conversations on shop floors and in technical service visits. Over the years, we have fielded calls from printers wrestling with streaking, poor color development, or migration onto other packaging surfaces. In nearly every instance, pigment purity and consistency revealed themselves as the primary hurdles. By focusing our investments on synthesis control, we improved not only end-product color but also press uptime and reduced scrap.

    Coating manufacturers also prize Lithol Rubine WF for its ability to impart vibrant shades with minimal binder loading. Whether the focus is low-VOC coatings or regulatory compliance for food-contact, our pigment supports final products that do not leach or lose brilliance upon storage. Our plant controls for heavy metals, stabilizes particle size at the point of drying, and employs robust packaging standards to avoid contamination in transit. Such controls help our customers maintain certifications and avoid unexpected downtime for troubleshooting.

    Feedback from both multinational ink giants and independent print shops has steered developments over the years. Concerns about energy costs, reductions in solvent emissions, and speedier curing environments have led our teams to fine-tune the manufacturing process. Today, Lithol Rubine WF offers lower oil absorption and high dispersibility in both solvent-based and water-based systems. This versatility gives printers flexibility in shifting between print jobs, reducing clean-up and transition times.

    Addressing Reliability and Environmental Challenges

    Environmental requirements have only intensified in recent years. VOC regulations, product stewardship audits, and supply chain transparency mandates now shape every decision by formulators and manufacturers. From our own experience navigating these shifts, we built Lithol Rubine WF to comply with regional requirements on lead, mercury, and cadmium content. Every batch receives regular screening to confirm compliance with global end-use laws, addressing critical components of the regulatory landscape for inks and coatings.

    The technical teams on-site remain on alert for evolving market needs. For instance, requests for lighter-weight packaging and novel substrates require pigments that anchor strongly without sacrificing brilliance. Our in-house laboratory tests Lithol Rubine WF for lightfastness, chemical resistance, and adhesion across the most popular stock, including recycled paper and polyethylene films. By shielding the pigment crystals during synthesis, we resist the fading that cheaper rubine pigments experience after only a few days in sunlight.

    With growing pressure for full supply-chain auditability, we respond by documenting every raw ingredient and barcoding each production lot. No trade distributor can match the level of backward compatibility we deliver — a factor that not only maintains compliance but also creates confidence for end users selling into regulated markets. Our material sheets and certifications are made accessible, because we have a vested interest in supporting customers’ technical and legal obligations.

    Solving Process Inefficiencies for Customers

    Many ink and coating makers grapple with the time and cost lost in pigment dispersion and color corrections. Lithol Rubine WF’s chemistry helps to simplify mill operations. Through research and direct collaboration with customers, we designed the pigment to disperse with minimal grinding, reducing time on high-speed mixers or media mills. Plants handling high-volume print runs have seen productivity gains; shorter cycle times translate to extra output. As a manufacturer, we also anticipate seasonal challenges such as humidity and temperature swings that affect storage and shelf life, so we package each batch in lined drums under controlled conditions.

    Our customers rely on straightforward technical service. If a user reports a shade drift or performance drop, our engineers trace lot data and raw material sources within hours, not weeks — a level of service unattainable with most reseller-sourced pigments. Consistency and transparency form the core of our manufacturing ethos for Lithol Rubine WF. This approach has resulted in ASTM-level performance benchmarks, reduced cost-per-print, and an expanding global customer base.

    High performance in real-world conditions often separates high-quality pigment from bulk alternatives. We listen to the production challenges of printers and converters facing different inks, substrates, and regulatory frameworks. The pigment responds well to a range of resin systems and keeps its tone stable under variable printing speeds and drying times. Our best insights do not come from laboratory data alone but from close dialogue with customers in the field — feedback that continually shapes product improvements.

    Commitment to Trust, Safety, and Continuous Improvement

    Producing quality pigment requires more than technical knowledge; it demands robust controls, open communication, and an honest relationship with customers. Lithol Rubine WF is improved year after year because we pay attention to every point in the supply chain. Whether we are sourcing raw materials, managing inventory, or documenting batches, each step is accountable. That mindset fosters trust and helps customers respond confidently to quality audits or traceability requests from their end users.

    Occupational safety shapes every batch we make of Lithol Rubine WF. We dedicate resources not only to plant worker training and incident prevention but also to safe handling instructions for every end user. This extends to post-sales service, where we support technical teams with practical guidelines for handling, storage, and remediation, reducing exposure risk throughout the pigment’s lifecycle.

    Our facility integrates feedback loops so that lessons learned — whether from an unexpected ink stability challenge or a regulatory audit — push us to review and upgrade each process step. A blend of tradition and innovation anchors our work; we pair hands-on pigment technicians with modern automation, tightening controls further with each passing year. This process ensures Lithol Rubine WF remains not just a commodity, but a solution tailored to colorful, durable, and reliable print.

    Conclusion: The Value of Direct Manufacturing Experience

    We stand firmly behind every bag and drum of Lithol Rubine WF that leaves our facility. Years of manufacturing pigment have taught us that every customer challenge brings a chance to improve, and every batch reflects both the science and relationships behind it. The pigment’s strong color, reliability in challenging processes, and verified safety show how much we invest in every shipment.

    In a world where pigments often pass through countless hands, direct contact with the manufacturer means questions get clear answers and solutions match the challenges faced during real production. Our doors remain open to customers wanting deeper technical insights, support for new print applications, or guidance in keeping pace with changing environmental or manufacturing standards. Lithol Rubine WF carries the tradition and future of our manufacturing approach: technical precision, open partnership, and a commitment to brilliant color in every print job.

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