Tengfei Creation Center,55 Jiangjun Avenue, Jiangning District,Nanjing admin@sinochem-nanjing.com 3389378665@qq.com
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Acid Blue 129

    • Product Name Acid Blue 129
    • Alias C.I. Acid Blue 129
    • Einecs 402-040-1
    • 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
    Specifications

    HS Code

    612065

    Name Acid Blue 129
    C I Number 62055
    Molecular Formula C32H29N5Na2O6S2
    Molecular Weight 709.72 g/mol
    Appearance Dark blue powder
    Solubility Soluble in water
    Cas Number 101027-28-1
    Chemical Class Triphenylmethane dye
    Maximum Absorption Wavelength 630 nm
    Usage Textile dyeing

    As an accredited Acid Blue 129 factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

    Packing & Storage
    Packing A 500g tightly sealed, high-density polyethylene bottle labeled "Acid Blue 129," featuring hazard warnings, batch number, and manufacturer details.
    Shipping Acid Blue 129 should be shipped in tightly sealed containers, protected from moisture and direct sunlight. It is typically transported as a non-hazardous dye powder. Ensure containers are clearly labeled and comply with local, national, and international transport regulations. Handle with appropriate protective equipment to avoid inhalation and skin contact.
    Storage Acid Blue 129 should be stored in a tightly sealed container in a cool, dry, well-ventilated area away from incompatible substances such as strong oxidizers and acids. Keep it protected from moisture and direct sunlight. Ensure storage areas are equipped with spill containment and appropriate labeling. Handle with care, using proper personal protective equipment, and keep out of reach of unauthorized personnel.
    Application of Acid Blue 129

    Applications of Acid Blue 129 in Industrial Manufacturing

    Acid Blue 129, a water-soluble anthraquinone dye, serves a critical role in several specialized industrial sectors. As a direct manufacturer, we deliver consistent quality for applications that demand stable color development, precise formulation, and strict regulatory adherence. The following sections detail major downstream fields where our material is routinely specified and processed at an industrial scale.

    1. Wool and Nylon Textile Dyeing

    Textile manufacturers use Acid Blue 129 for coloring wool and nylon fabrics, where deep blue and turquoise hues are required for apparel, upholstery, and carpet yarns. The dye demonstrates high affinity for amide-containing fibers, enabling fast, uniform penetration during batch and continuous dyeing operations. Our material ensures reproducible shades across lots, supporting intricate color matching in seasonal textile lines.

    Industry compliance standards

    • OEKO-TEX® Standard 100 Class II/III for textile safety
    • REACH (EC 1907/2006) Annex XVII compliance for restricted substances
    • ZDHC Manufacturing Restricted Substances List (MRSL)
    • GB/T 7571-2009 (China) textiles dye quality test methods

    Typical usage ratio

    • 0.5% – 4.0% owf (on weight of fiber), adjusted per depth of shade and fabric type
    • For deep navy and turquoise blends, concentrations may reach up to 6% owf with auxiliary agents

    Downstream process integration

    • Added into dye bath after pre-wetting and pH adjustment
    • Combined with leveling agents and acid donors during batch dyeing
    • Fixed in situ by controlled cooling and washing sequences
    • Utilized in exhaust, semi-continuous (pad-batch), and continuous operations

    Final product types

    • High-end wool suiting and fine apparel
    • Tops-dyed nylon yarns for automotive interiors
    • Vintage wash wool carpets
    • Colorfast tapestry and weaving yarns

    2. Leather Finishing and Dyeing

    Tanneries integrate Acid Blue 129 for drum dyeing and surface finishing of chrome-tanned and vegetable-tanned leathers. The dye yields vivid, consistent color without masking the grain, favored for both luxury goods and technical leathers. Its resistance to migration and fading ensures finished hides meet stringent colorfastness standards for automotive, footwear, and upholstery markets.

    Industry compliance standards

    • LWG (Leather Working Group) Environmental Audit Protocol
    • AFIRM RSL (Apparel and Footwear International RSL Management Group)
    • EN ISO 105-X12 (Color fastness to rubbing – leather)
    • REACH Annex XVII restricted substances (aromatic amines, heavy metals)

    Typical usage ratio

    • 0.25% – 1.0% w/w based on shaved weight, dependent on substrate and shade depth
    • Lower end of the range for pastel finishes, higher for deep topcoat applications

    Downstream process integration

    • Dispersed directly in the dye drum during coloring stages
    • Blended into finishing emulsions for roller- or spray-coat techniques
    • Neutralized and retanned leathers accept dye in post-tanning processes
    • Consolidated with fatliquor and fixatives for stable dye fixation

    Final product types

    • Premium automotive seat leathers
    • Fashion-grade vegetable-tanned bags and accessories
    • Chromium-tanned footwear uppers and linings
    • Technical leathers for contract upholstery and saddlery

    3. Paper Industry Coloring

    Pulp and paper manufacturing uses Acid Blue 129 to impart blue and turquoise tints to specialty and fine papers, including security documents, writing pads, and tissue. Due to its high solubility and brightness, colorists achieve precise shade control without interfering with sizing or retention systems in modern paper machines. The color survives acid and alkaline treatments during conversion, making it suitable for archival-grade and printing papers.

    Industry compliance standards

    • EN 646 (Color fastness in paper and board)
    • FDA 21 CFR 176.170 (Component of paper and paperboard in contact with aqueous foods)
    • ISO 187 (Standard atmosphere for conditioning and testing of paper)
    • Chinese GB 4806.8-2016 (Paper & board food contact materials)

    Typical usage ratio

    • 0.05% – 0.25% (dry pigment basis, percent dry fiber weight)
    • Tinting strength adjusted by dilution and pulp composition

    Downstream process integration

    • Injected into the wet end or headbox just before the paper machine
    • Incorporated with retention aids and sizing agents
    • Thoroughly mixed with defiberized pulp slurry for even distribution
    • Withstands calendering and finishing operations

    Final product types

    • Bank and security note bases
    • Pastel and colored printing papers
    • Wrapping tissue and envelope stocks
    • Specialized filter and label papers

    4. Water-Based Ink Formulation

    Industrial ink manufacturers incorporate Acid Blue 129 in aqueous inkjet and flexographic inks, targeting high color intensity for commercial and packaging print. The dye’s solubility profile supports fast drying and stable dispersion without clogging nozzles or causing settlement. Extensive QC controls during ink blending mitigate color shift and prevent chemical interaction with stabilizers and co-solvents.

    Industry compliance standards

    • ISO 2836 (Resistance of printed inks to solvents and chemicals)
    • EN 71-3 (Safety of inks for toys and children’s products)
    • Swiss Ordinance SR 817.023.21 (Printing inks for food packaging)
    • EU Ecolabel and Blue Angel for printing processes

    Typical usage ratio

    • 0.2% – 1.8% of total ink formulation by weight
    • Tint adjusted for print density, paper absorbency, and press specifications

    Downstream process integration

    • Pre-dissolved in deionized water phase before pigment dispersion
    • Stabilized with surfactants, resins, and humectants
    • Filtered after let-down for particle size and purity
    • Tested for rheology and shelf stability prior to shipping

    Final product types

    • Packaging and label inks for food and beverage cartons
    • Commercial book and magazine aqueous inks
    • Wide-format inkjet cartridges for display graphics
    • Colorfast flexographic inks for corrugated cases

    5. Biological Staining and Laboratory Reagents

    Diagnostic kit producers and research reagent companies use Acid Blue 129 in staining protocols to visualize proteins and nucleic acids on membranes and gels. The dye’s spectral characteristics enable high-contrast visualization in protein fingerprinting, particularly for polyacrylamide gel electrophoresis (PAGE) and cellulose acetate membrane staining. Laboratories demand high purity and batch-to-batch uniformity for reproducible analysis and reporting.

    Industry compliance standards

    • ISO 13485 (Quality management for medical devices, including IVD reagents)
    • CE IVDR for diagnostic products (EU 2017/746)
    • US Pharmacopeia Reagents Chapter (where applicable)
    • GLP-certified laboratory manufacturing

    Typical usage ratio

    • 0.1% – 0.25% w/v in aqueous stain solutions
    • Adjusted by protein size and membrane type for visualization intensity

    Downstream process integration

    • Dissolved in buffer to prepare working stain solution
    • Applied after electrophoresis or blotting for endpoint detection
    • Excess dye removed by destaining in aqueous or alcoholic solvents
    • QC-checked for uniform stain distribution and background clarity

    Final product types

    • Protein gel stains for biomedical research kits
    • Ready-to-use staining solutions for clinical diagnostics
    • Membrane blot visualization reagents
    • Standardized laboratory color markers

    Free Quote

    Competitive Acid Blue 129 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.

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    Tel: +8615371019725

    Email: admin@sinochem-nanjing.com

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    Certification & Compliance
    More Introduction

    Introducing Acid Blue 129: Crafting Color With Commitment

    We work hands-on with dyestuffs every day, so we know the small choices in production can make or break your results on the floor. Acid Blue 129 has stood the test of time in textile, leather, and paper industries. Our team pours craft and consistency into every batch, and that makes a practical difference when you are running large dye baths or custom applications. The truest blue, as demanded, runs deep in every fiber of this product—and in our own working experience.

    Composition and Appearance

    This dye falls under the class of acid dyes and comes as a bright, high-purity powder. A distinctive blue shade, it carries a molecular structure that allows strong affinity to polyamide, silk, wool, and some modified acrylic fibers. Its chemical robustness can cope with a range of acid dyeing procedures. Many plants find repeatability in tone is one of its primary advantages. Under various process pH ranges or water hardness, its chromophore and substituents resist unwanted tone shifts, which translates to fewer redips and less frustration in color matching.

    Working Experience in Different Industries

    Through years of production, our factories have delivered Acid Blue 129 to dyehouses running fine woolens for fashion, as well as suppliers needing stable colorations for industrial applications. Silk printers also lean on its solubility and migration behavior to get crisp patterns with predictable outlines. We’ve also supplied converters in the paper industry who value the blue’s resistance to acid hydrolysis, which reduces fading under acidic treatments. Each order we dispatch has been through batch validation using mock-up dye lots followed by standardized light, wash, and perspiration tests on representative fabric swatches.

    Specifications and Practical Parameters

    Our regularly produced lots of Acid Blue 129 maintain a color strength that sits within a controlled 2% of nominal value, assessed via UV-Vis spectrophotometric methods. We intentionally control moisture content under 5%. Handling properties such as flowability and dusting are addressed by regular sieving and attention to powder granulation, which helps in direct weighing and aqueous dissolution at the plant level. We have found customers who require instant dissolution and minimal particulate matter realize immediate improvements after switching to our product due to our production attention to filtration at multiple stages.

    Understanding Acid Blue 129’s Role in Dyehouses

    Dyeing is never just about lab results—it’s about process reliability on the shop floor. Some synthetic dyes look impressive in a catalog but introduce variables in actual use. During continuous dyeing operations, we find Acid Blue 129 produces stable, repeatable hues on wool and nylon without color ringing or frosted appearance on fiber bundles. Batch-to-batch consistency is possible only through direct experience with what works and what does not. We manage trace impurities closely because we understand how trace metallic or aromatic residues can alter dye-fiber bonding or trigger downstream color drift after finishing.

    Comparing With Other Dyes

    Many new entrants in blue acid dyes claim fastness or technical performance, but field reports and sample trials consistently illustrate the difference in both color depth and affinity. We have compared Acid Blue 129 directly against Acid Blue 113, Acid Blue 80, and Acid Blue 9 across real-world production runs. Acid Blue 129 stands out for its finer particle size and superior migration control during padding or printing applications. In silk processes, it shows improved sharpness in resist dye patterns compared to other blue acids, reducing bleed and backstaining. Conversely, dyestuffs like Acid Blue 113 often require higher concentrations to reach the same depth and then suffer from higher wash-off requirements, raising water and energy usage. Based on technical support inquiries, finishers report that this “just holds right” feeling on nylon fibers is far more reliable with 129 than most alternatives tested, especially under variable humidity or temperature conditions in the plant.

    Fastness Properties and Aftercare

    Durability of color sits at the core of customer expectations. Acid Blue 129 stays vivid under sunlight, daily wear, and repeated washing. On woolens, we routinely verify resistance to wet and dry rubbing, and certified prints on silk maintain their luster after ironing and steaming. Light fastness remains in the upper midrange, on par with or slightly above common acid blue benchmarks, especially when coupled with modern auxiliaries or fixatives. We communicate these results directly to clients, often after joint trials, because we know final outcomes must hold up over time on finished goods like uniforms, upholstery, or custom garments.

    Our Approach To Product Validation

    Our technical team draws on decades of hands-on dye plant work. Every incoming raw material batch undergoes trace analytics for metallic impurities, organic contaminants, and residual moisture. Finished dye lots are standardized on reference fabric panels for both visual assessment and instrument colorimetry. Direct dialogue with our clients means we build in real-world test cycles, simulating exhaustion, padding, or jet dyeing on wool, silk, and polyamide. This helps us detect even subtle problems that only emerge under high-shear or rapid temperature ramping. Our technical notes go well beyond lab numbers—they describe what we actually see in production, including any off-shade risks and mitigation advice.

    Environmental Practice and User Wellbeing

    Production of Acid Blue 129 follows an in-house protocol that cuts down extraneous effluents. Filtration units run at higher turnovers to reduce solid discharge into the wastewater stream, and enclosed weighing/dosing stations minimize operator exposure to airborne powder. For customers working with overflows or fine filters, we supply guidance on optimum water management and waste dye treatment solutions learned through our own process adjustments. Annual audit data from our plants demonstrates reductions in total dye losses compared to generic suppliers, due to our emphasis on in-process recovery and recycling.

    User Guidance Drawn From Real Work

    Our support team answers daily queries on pH targeting, dye liquor salt content, and agitation strategies. Each step comes from lessons learned under production pressure, not just theory. In a wool dye batch, we suggest beginning at a slightly acidic pH and ramping temperature steadily—early color build-up leads smoothly to final depth. For silk jet dyeing, a moderate electrolyte dose prevents aggregation without impairing migration or pattern sharpness. If you run continuous padding lines in nylon carpet, pay attention to liquor pick-up and fabric tension; excessive drag lines can cause banding that only emerges after drying. These details come straight from field experience, not just datasheets, and they help our customers achieve fewer reworks and tighter batch runs.

    Market Trends and Technical Differentiators

    Recent shifts in the textile supply chain have seen more stringent scrutiny over both color safety and trace contaminant profiles. Acid Blue 129 meets these concerns head-on through documented testing for restricted substances, including regulated aromatic amines. Our clients in export-focused dyehouses regularly request compliance documentation, and we back this with current analytical reports covering each shipment. By comparison, certain generic acid dyes can introduce trace regulated substances through uncontrolled synthesis or poorly controlled intermediates, creating unwanted regulatory risks for downstream brands. Our own auditing teams often catch these issues in third-party materials when conducting comparative stains and tests. Relying on controlled and traceable production brings peace of mind as well as consistent color.

    Production Scale and Application Flexibility

    Our sites produce Acid Blue 129 in lots scaled from small test batches up to multi-ton outputs. Every order, whether shipped to boutique studios or high-volume dyehouses, receives the same degree of technical scrutiny. We coordinate with clients directly to fine-tune product form; for example, some customers prefer microgranular forms to cut dust or improve bulk handling. Each production scale draws from the same raw material base and process checks, so whether you run artisan silk or mass-market nylon, you gain access to the same standards and support team. Consistent raw material sourcing backed by traceable quality controls is how we have built trust with customers across textile and specialty processing industries.

    Feedback Loops and Ongoing Innovation

    Every dye run teaches something new. We maintain close feedback channels with end users to gather performance data and share process adjustments. This ongoing exchange allows us to refine mixing, dispersing, and packaging techniques with every production cycle. Some clients need help troubleshooting batch-to-batch variations, and we visit sites for on-floor testing and immediate fine-tuning. Others request pilot batch samples for new textile blends, which we run under varied pH, temperature, and liquor ratios in our own pilot dyeing machinery. Real-world feedback loops form the backbone of our ongoing improvements, rather than just shifting to the newest theoretical advance or marketing claim. For us, the proof always comes in the next run, not in the brochure.

    Supporting Sustainability Goals

    Responsible production of Acid Blue 129 means more efficient use of water, energy, and raw materials. By fine-tuning synthesis and reducing ancillary reagents, we can achieve strong color depth while shrinking overall effluent load. Dyehouses working on sustainability certifications rely on us for technical data and process guidance that align with these environmental commitments. We work with clients’ own sustainability officers to map dye behavior in eco-friendly auxiliaries and finishers, exchanging information on how Acid Blue 129 fits real-world needs for both color depth and greener production routes. Efficient exhaust rates and re-usable rinse waters are achievable, and our technical service shares best practices drawn from customers who have made these transitions successfully.

    Ongoing Challenges and Solutions

    The practical work of producing and using acid dyes brings daily challenges. Variability in raw material quality, evolving environmental regulations, and changing end-user requirements demand resilience and flexibility. Addressing trace impurity issues requires constant vigilance—not only at the plant input stage but also through real-time analytics during production. Mismatched dyeing results can stem from unexpected process changes on the customer’s side, or distribution delays introducing storage issues. Our response is always hands-on, pulling samples, re-running test dyeings, and working together on-site to uncover the root causes. We draw from years of troubleshooting to bring not only the technical fix but practical advice that fits our customers’ actual production realities.

    Looking Forward

    Textile and specialty dyeing are evolving under pressures of quality, safety, and sustainability. Acid Blue 129 remains a go-to solution for vibrant color, but our focus extends far beyond selling a product. We continuously challenge ourselves to document, verify, and improve every step, learning directly from mills, printers, and fabricators who use the dye under real pressure. Open communication, practical testing, and lived experience build the reliability we deliver every day. Choosing a dye is a partnership, and we bring all our expertise to every order—batch by batch, run by run, solution by solution.