Tengfei Creation Center,55 Jiangjun Avenue, Jiangning District,Nanjing admin@sinochem-nanjing.com 3389378665@qq.com
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Vat Violet 1

    • Product Name Vat Violet 1
    • Alias Indanthrene Violet
    • Einecs 215-721-6
    • 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

    642790

    product_name Vat Violet 1
    chemical_class Vat dye
    C.I. number CI 59825
    molecular_formula C29H14N2O4
    molecular_weight 454.43 g/mol
    appearance Violet powder
    solubility Insoluble in water, soluble in concentrated sulfuric acid
    CAS_number 1324-67-8
    application Textile dyeing
    melting_point Decomposes
    color_index_name Vat Violet 1
    lightfastness Excellent
    stability Stable under normal conditions

    As an accredited Vat Violet 1 factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

    Packing & Storage
    Packing Vat Violet 1 is typically packaged in a sealed, high-density polyethylene drum containing 25 kilograms, with clear labeling for product and hazard information.
    Shipping Vat Violet 1 is shipped as a solid dye, typically in securely sealed drums or fiber containers to prevent moisture exposure and contamination. The packaging is labeled according to chemical and transport regulations. Proper documentation and safety data sheets accompany the shipment to ensure compliance with hazardous materials transport guidelines.
    Storage Vat Violet 1 should be stored in a cool, dry, and well-ventilated area, away from heat and sources of ignition. Keep the container tightly closed and protect it from moisture and incompatible substances such as strong oxidizing agents. Store it in a designated chemical storage cabinet, clearly labeled, and ensure access is restricted to trained personnel.
    Application of Vat Violet 1

    Applications of Vat Violet 1 in Industrial Manufacturing

    Vat Violet 1, an anthraquinone-based vat dye, plays a critical role in various industrial colorant applications due to its excellent wash fastness and stable shade properties. As the original producer, we support multiple downstream sectors with this high-performance dye and integrate it into diverse industrial process chains in compliance with stringent global standards.

    1. Cellulose Fiber Textile Dyeing

    Cellulose fiber manufacturers utilize Vat Violet 1 to achieve deep violet shades on cotton, rayon, and linen fabrics. The dye undergoes a controlled vatting process where it is reduced to its water-soluble leuco form and impregnated into the fibers. Post-application oxidation restores its insoluble state, imparting permanent color resistant to repeated washing and light exposure. Factories must observe strict effluent treatment and color matching protocols to meet quality and compliance demands from both local and international apparel brands.

    Industry compliance standards

    • OEKO-TEX Standard 100
    • ZDHC MRSL (Zero Discharge of Hazardous Chemicals - Manufacturing Restricted Substances List)
    • EU REACH Regulation EC 1907/2006
    • China GB/T 18401 National General Safety Technical Code for Textile Products

    Typical usage ratio

    • 0.5–3.0% owf (on weight of fiber), varying based on desired shade intensity and substrate absorbency

    Downstream process integration

    • Dye is reduced in a vat with sodium hydrosulfite and caustic soda, applied in the dye bath to pre-treated cellulose fibers, followed by oxidation and soaping

    Final product types

    • Dyed woven and knitted garments
    • Home textiles (bed linen, towels)
    • Denim and casualwear fabrics
    • Industrial workwear

    2. Cotton Yarn and Thread Production

    Yarn dyeing facilities select Vat Violet 1 for solution dyeing and package dyeing of cotton threads used in sewing, embroidery, and trimmings. The dye provides exceptional penetration and colorfastness, crucial for end uses subject to frequent laundering and sunlight exposure. End users require compliance with global textile colorant safety standards and color consistency throughout manufacturing lots.

    Industry compliance standards

    • CPSIA Section 101 (Total Lead Content in Substrate Materials)
    • Bureau Veritas textiles testing protocols
    • AATCC colorfastness test methods (e.g., AATCC 61, 16.3)
    • ISO 105 (Textiles — Tests for Colour Fastness)

    Typical usage ratio

    • 0.3–1.5% owf, adjusted for yarn count and intended saturation level

    Downstream process integration

    • Dye liquor introduced in continuous or batch dyeing lines; reduced dye applied to pre-scoured yarn; post-oxidation and washing ensure proper fixation

    Final product types

    • Colored sewing threads
    • Embroidery yarns
    • Handicraft and decorative strings
    • High-tenacity industrial threads

    3. Paper and Specialty Board Coloring

    Paper mills apply Vat Violet 1 during pulp or surface dyeing to achieve deep, uniform violet hues in specialty papers and boards for packaging, currency, and artist supplies. Careful control of pH and retention aids ensures stable incorporation without bleed-through or migration. This application requires non-toxic, migration-resistant colorants backed by documentary compliance for direct and indirect food contact goods.

    Industry compliance standards

    • FDA 21 CFR 176.170 (Components of Paper and Paperboard in Contact with Aqueous and Fatty Foods)
    • EN 646 (Color fastness of dyed papers in contact with water)
    • RoHS Directive 2011/65/EU (Restriction of Hazardous Substances)
    • ISO 12625 (Tissue papers and tissue products)

    Typical usage ratio

    • 0.1–0.5% on pulp dry weight; dosage refined by application method and target color density

    Downstream process integration

    • Pigment dispersion blended with wet pulp during sheet formation or applied in a size press before calendaring and finishing

    Final product types

    • Colored stationery papers
    • Decorative cardboard
    • Banknotes and security papers
    • Gift wrap and artistic paperboards

    4. Leather Finishing Dyes

    Tanners employ Vat Violet 1 for surface and penetration dyeing in luxury leathers used for footwear, handbags, and upholstery. The dye is introduced during the retanning or surface finishing stage and fixed onto leather fibers by repeated oxidation and thorough washing. Producers ensure precise control of dye bath temperature, pH, and mechanical agitation to prevent uneven coloration or migration in finished hides.

    Industry compliance standards

    • EN 71-3:2019 (Migration of certain elements)
    • ISO 17075 (Determination of chromium(VI) in leather)
    • Leather Working Group Environmental Audit Protocol
    • GB 20400-2006 (Limit of Harmful Matters in Leather and Fur)

    Typical usage ratio

    • 0.2–1.0% by wet blue weight; variation depends on penetration depth and desired coverage

    Downstream process integration

    • Applied in aqueous dye baths during retanning or by brush/spray in finishing lines, followed by air-drying and conditioning

    Final product types

    • Fashion and luxury leathers
    • Automotive and aircraft upholstery
    • Premium handbags and wallets
    • Protective footwear

    5. Synthetic Fiber Blends

    Manufacturers of regenerated cellulose blends (viscose, modal) utilize Vat Violet 1 for package and jig dyeing operations. The dye delivers deep color shade uniformity and retains its brilliance on synthetic-cotton composites, which often present challenges in dye affinity. Parameters such as reduction agent dosing, liquor ratio, and oxidative fixation are closely monitored for consistent results.

    Industry compliance standards

    • ISO 14024 (Type I environmental labelling)
    • ZDHC MRSL (for synthetic/textile facilities)
    • EU Ecolabel for textile products
    • China GB/T 29862-2013 (Textile identification and testing)

    Typical usage ratio

    • 0.4–2.0% owf, adjusted to base fiber and blend ratio as well as required depth of shade

    Downstream process integration

    • Dye reduction and application in high-pressure, high-temperature dyeing equipment for synthetic blends; thorough after-treatment for solid color stability

    Final product types

    • Blended apparel (t-shirts, dresses)
    • Performance sportswear
    • Uniform fabrics
    • Technical and safety textiles

    6. Printing Ink Formulation (for Security and Specialty Printing)

    Ink manufacturers choose Vat Violet 1 for high-security document and specialty printing inks, benefiting from its resistance to solvents, light, and chemical reagents. After micronization, formulators disperse the pigment into specialized binder systems suitable for offset, intaglio, and flexographic processes, with strict controls on particle size and dispersion stability. Regulatory compliance with anti-counterfeiting and toxicity requirements remains essential in this application, particularly in currency and legal document printing.

    Industry compliance standards

    • ISO 2846-1 (Color and transparency of printing ink sets)
    • ISO 1831 (Security printing—Detectability and resistance requirements)
    • EN 71-3 (Safety of toys—Migration of certain elements, applicable to printed goods)
    • U.S. Secret Service recommendations for banknote inks

    Typical usage ratio

    • 0.2–2.0% by mass in ink formulations, depending on required print density and anti-forgery performance

    Downstream process integration

    • Pigment processed through precision milling; incorporated in binder/solvent base; filtered for uniformity before filling ink cartridges or reservoirs

    Final product types

    • Security documents and checks
    • Banknotes and certificates
    • Brand authentication labels
    • Specialty packaging with anti-counterfeit features
    Free Quote

    Competitive Vat Violet 1 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.

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    Email: admin@sinochem-nanjing.com

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    Certification & Compliance
    More Introduction

    Introducing Vat Violet 1: Our Experience With a Trusted Dye

    In the world of vat dyes, Vat Violet 1 stands out for its reliable coloring strength and longstanding reputation in textile applications. At our facility, we have focused on refining the processes behind Vat Violet 1 for years, constantly looking for ways to improve purity, particle control, and fineness. We see firsthand how demand for stable, vivid violet shades keeps growing—especially as apparel brands aim for bolder, higher-value product lines. The consistency of Vat Violet 1 makes it a central choice for dyeing cellulose fibers, especially cotton yarns and fabrics meant for high-end clothing, linens, and accessories.

    Why We Develop Vat Violet 1

    Our team invests energy every day to maintain a dye that gives clear results and minimizes headaches on the shop floor. Driven by ongoing feedback from dyers, we regularly adjust aspects like granule size and purity, seeking to eliminate mottling, uneven penetration, and wash-off issues. The core reason we produce Vat Violet 1 comes down to its track record: it delivers rich violet shades resistant to light, wet processing, and repeated laundering.

    Not every violet dye holds up the way Vat Violet 1 does under demanding processing conditions. We see customers rely on it for batch dyeing of cotton goods, continuous pad-steam, and even solution dyeing for regenerated cellulose. It keeps its shade integrity through alkaline reduction, even during extended boil-offs or re-wash cycles common in large-scale textile finishing. By acting on direct operator feedback, we’ve honed our filtration and milling steps to produce a powder that disperses easily in dye baths, saving our customers time and labor.

    Specifications That Matter in Practice

    We get asked about shade depth and particle uniformity more than anything. Speaking candidly, we care less about theoretical lab specs and more about what fixes common pain points for end users. We consistently supply Vat Violet 1 in powder or micro-granulated form with tailored moisture levels for easier dispersion. Our in-house team keeps impurity levels low—especially iron and copper residues—which can mess up shade balance during high-temperature reductions. Instead of focusing on abstract purity grades, we tune every lot so operators don’t face clumping or undissolved grains in the vat.

    As for color, Vat Violet 1 produces a balanced blue-violet shade on cellulosics, neither too blue nor too reddish. Retail buyers notice slight differences in undertone. We bench-test each batch against master standards so the finished garments match past production. This helps producers avoid costly re-runs or customer complaints about shade drift—one of the anxiety points we do everything to minimize.

    How Vat Violet 1 Fits Into Dye Houses

    Based on our ongoing partnership with textile processors, we’ve watched Vat Violet 1 take on roles beyond traditional exhaustion dyeing. Garment dyeing units use it to produce a worn-in, vintage appearance that persists through washing, which is hard to duplicate with other classes of dyes. In denim, it adds violet tinges to blue-black jeans, helping brands stand apart in crowded product lines. In the case of yarn dye houses, Vat Violet 1 covers hard-to-penetrate ring yarns, a notorious challenge for consistent coloration. We’ve observed that mills switching from solvent dyes to Vat Violet 1 see fewer batch-to-batch surprises, especially where containerized processing and water quality can fluctuate.

    Those running continuous machines appreciate the dye’s ability to hold shade without excessive tail-off. As a manufacturer, we stress-test batches under real-world feed rates and steam temperatures, adapting the reduction period as needed to match demands for fastness and brightness. For heavy cotton twills, we find that slightly extended reduction times yield better penetration and lift, while lighter substrates require shorter contact times to avoid over-saturation.

    Differences From Other Violet Dyes

    Plenty of options exist for violet coloration—reactive, direct, acid, and sulfur dyes fill their own niches. We address questions about the difference between Vat Violet 1 and these alternatives almost daily. Our position is clear: Vat Violet 1 can’t be matched for depth and shade persistence on natural fibers under rugged use. Where reactive dyes give fast initial uptake and lighter tones, Vat Violet 1 supplies richer saturation and long-term color retention even after multiple home launderings. For operators focused on sweat and light fastness, flows through domestic and global supply chains, and the pressure to avoid re-dyeing, Vat Violet 1 stands out.

    Compared with other vat dyes, Vat Violet 1 fills a need for blue-leaning violet that complements both deep reds and navy blues in multi-color patterns. Other violets in the vat range exist but often pull too red or lack the brightness our product delivers. Vat Violet 1 also dissolves faster and at lower alkali load than older alternatives—a direct result of our process controls tuned over years of feedback and R&D. Customers wanting to add unique shades to their palette without giving up the processing robustness of classic vat chemistry consistently push for Vat Violet 1 over newer, sometimes unpredictable dyestuffs.

    Addressing Sustainability and Safety

    Discussion about dye sustainability rightfully dominates many boardrooms now, including ours. We invest in refining our wastewater and recovery systems to minimize local impact, cutting down the chemical footprint of Vat Violet 1 manufacture. By designing batches that run clean with little reworking, we also reduce water and energy use for downstream customers. Our labs continue to eliminate certain auxiliaries and metals once common in the process—less necessity for chelators or masking agents on the customer end, which translates to easier regulatory reporting and less wastewater remediation at the mill. Listening to regional partners on evolving compliance frameworks helps us stay ahead and pass those benefits on through our supply chain.

    Safety for operators shapes every adjustment in our process line. We monitor handling exposure points—dust off-loading, manual vat stirring, transfer steps—and tweak granule size for faster wetting and lower airborne dust. Simple changes bring big improvements for respiratory comfort, especially in less-automated dye houses. Since Vat Violet 1 production uses fewer volatile organics than disperse or solvent dye manufacture, we have a measurable edge in air quality and operator satisfaction. Consistent training and on-site troubleshooting, whether through video or in person, keep use safe and practical.

    What Drives Demand For Vat Violet 1?

    Manufacturers we work with prioritize dyes that ease the workflow: fast dispersibility, robust shade reliability, and limited batch variability even with inconsistent incoming water. For brands evolving color trends seasonally, Vat Violet 1 meets requirements for new shade combinations on both classic and performance fibers. Textile mills facing tight delivery windows can’t afford critical process faults in the dye house, so they turn to established, versatile standards like Vat Violet 1.

    Another point drawing attention comes from regulatory changes in target export markets. Goods flowing into North America or Europe face ever-tightening demands on shade migration, color bleeding, and extractable metals. Our steady supply and traceable product history have supported many partners through audits, new certifications, and brand-level compliance reviews. Knowing that every lot ties directly back to our own lines—no middlemen, no re-packing—builds trust across relationships, not just transactions.

    Adapting To Evolving Industry Challenges

    Supply chain disruptions and shifting cost structures challenge any chemical manufacturer. Securing key feedstocks for Vat Violet 1—especially precursor aromatics—not only affects us, but ripples through our partners’ mills. By long-term contracting and backward integration on certain intermediates, we buffer our customers from unpredictable spikes. What matters most is open communication. If a shortage or quality deviation emerges, we pick up the phone, alert downstream users, and jointly troubleshoot. This mutual trust keeps operations flowing in a time when uniformity of supply is no longer just assumed.

    Increased customer expectations for technical transparency have prompted us to open up more about our formulation strategies. Detailed particle sizing studies and reproducibility audits form a regular part of our output, not just for compliance but to help mill managers plan ahead. If a client wants to push Vat Violet 1 through a new piece of dyeing equipment, our technical department runs simulations or live tests, sharing both successful parameters and identified limits. This prevents costly surprises and forms a knowledge base accessible across the industry.

    Common Issues in Application—and What We’ve Learned

    A lot has changed since we started making Vat Violet 1, but a few shop-floor challenges never seem to go away. Incomplete reduction remains a major culprit behind patchy shades and poor wash-fastness. Years of collaboration pointed us toward fine-tuned alkali dosing and reduction times as key solutions. We keep a running file of case studies documenting what works in mills facing different water alkalinities, temperature control issues, and pretreatment residues. Instead of just shipping product and hoping for the best, we offer site-specific support—sample reductions, color checks, and on-hands demonstrations. This approach goes beyond theory; it gives customers the confidence to use Vat Violet 1 even when parameters shift unexpectedly.

    Other frequent questions cover blend compatibility and post-dyeing finish. Vat Violet 1 interacts well with other vat dyes for unique, target-driven shades, but certain combinations can reduce saturation or create dull-looking mixes. Our application support team logs every successful combination and flags those that produce less-than-ideal results. On the finishing end, prolonged oxidative clearing steps can sometimes leach some tone, so we’ve devised gentler methods for mills needing extra retention. Sometimes, practical knowledge beats generic process sheets.

    The Human Element of Dye Production

    Behind every drum of Vat Violet 1 stands a group of people committed to real-world results. Line operators check each filtration and granulation step, troubleshooting at the first sign of inconsistency. We learn from every feedback call—the missed shade match, the batch that ran slow, the client earning praise for a standout color line. This ongoing loop of production, feedback, and improvement brings meaning to our work and ensures each quality statement aligns with shop-floor reality.

    For many of us on the manufacturing side, dyes aren’t just chemical products but the foundation for textile innovation, worker livelihoods, and community value chains. We build on decades of cumulative experience, pairing traditional batch skills with current process analytics and market trend knowledge. Partners old and new tap into that expertise, weaving their unique needs and innovations into the evolution of Vat Violet 1.

    A Look Toward the Future

    As the textile industry moves toward circularity and end-of-life recovery, our R&D program increasingly focuses on improved wash-off, easier pigment recovery, and pigment applications beyond cellulose. Our research partners are exploring post-consumer cellulose recycling using Vat Violet 1, with promising results on shade carryover and re-dye pathways.

    We anticipate stricter requirements for traceability, restricted substances, and environmental toxicity profiling. We respond by investing in cleaner synthetic routes, greener solvents, and stepwise product documentation, so end users receive Vat Violet 1 that aligns with their sustainability goals. While regulatory thresholds will keep evolving, the pressure to innovate remains at the core of what we do—balancing coloration performance, operating safety, and environmental stewardship in every batch.

    Our Commitment

    Producing Vat Violet 1 means more than simply refining a colorant; it’s about responsiveness, technical depth, and continuous learning. Each upgrade in process or product flows directly from what real users need on the ground. By staying rooted in firsthand experience—operator to chemist, mill partner to support engineer—we build mutual respect that sustains business for the long term.

    Our purpose lies in making every drum deliver more predictable, high-value results. With reliable supply, ongoing technical support, and a strong understanding of both historic and modern textile industry demands, we help our customers’ businesses thrive in unpredictable times. Vat Violet 1 stands as a testament to what manufacturing expertise, careful process control, and direct industry engagement can accomplish. We welcome ongoing conversations about improving the product further as new challenges and possibilities emerge across global textile markets.