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    HomeProductsSpecialty ChemicalsTextile printing and dyeing chemicalsVat Blue 18 (Navy Blue BR) CAS 1324-54-5
    • Vat Blue 18 (Navy Blue BR) CAS 1324-54-5

    Vat Blue 18 (Navy Blue BR) CAS 1324-54-5

    Vat Blue 18 CAS 1324-54-5 is a premium anthraquinone-based vat dye chemically classified as a halogenated isoviolanthrone , functioning primarily as a high-performance colorant for cellulosic fibers. Commercially known as Vat Navy Blue BR, this insoluble pigment requires reduction to its water-soluble leuco form before application, after which it oxidizes within the fiber to produce deep, fast navy shades. It is extensively utilized in the textile industry for dyeing cotton uniforms, workwear, and denim where exceptional light fastness and chlorine bleach resistance are mandatory. We provide professional access to this material with competitive factory pricing and the ability to meet customized specifications (such as colloidal/ultrafine powder for continuous dyeing) for various manufacturing requirements. Our commitment to technical transparency ensures that every shipment is accompanied by comprehensive MSDS, TDS, COA documentation to support your quality assurance protocols, and we maintain capacity for consistent bulk supply to facilitate large-scale industrial operations.

    • CAS: 1324-54-5
    • Synonyms: Vat Blue GCD, Trichloroisoviolanthrone, Vat Navy Blue BR, C.I. Vat Blue 18
    • Einecs: 204-152-0
    • Molecular Formula: C34H13Cl3O2
    • Grade: Textile printing and dyeing chemicals
    • Package: 25kg/bag (Plastic woven bag with PE liner) or 500kg/1000kg Jumbo Bag.
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    Product Description

    1 Physical & Chemical Properties
    2 Why Manufacturers Choose Vat Navy BR
    3 Key Application Fields
    4 Safety and Precautionary Measures
    5 Storage and Handling Conditions

    Physical & Chemical Properties

    To help you integrate this into your current dyeing process, here are the technical specifications of our Vat Navy BR.

    PropertySpecification
    Product NameVat Dyes Navy BR
    C.I. NumberVat Blue 18
    CAS Number1324-54-5
    AppearanceDark Blue/Navy Powder or Granules
    Ionic CharacterAnionic (in reduced state)
    SolubilityInsoluble in water; Soluble in alkaline reduction solution
    Light FastnessExcellent (Grade 6-7)
    Washing FastnessExcellent (Grade 4-5)
    Chlorine FastnessVery Good

    Why Manufacturers Choose Vat Navy BR

    Vat dyes are chemically unique because they are insoluble in water. They penetrate the fiber in a reduced (soluble) state and are then oxidized back into an insoluble form inside the fiber structure.

    What does this mean for your final product?

    1. Unmatched Durability: Once oxidized, the color is locked in. It is incredibly resistant to sunlight, heavy perspiration, and friction.
    2. Industrial Wash Resistance: Unlike reactive or direct dyes, Vat Navy BR stands up to harsh industrial laundering and chlorine bleaching, making it the standard for workwear.
    3. Consistent Leveling: It offers excellent leveling properties, reducing the risk of patchy dyeing even in continuous dyeing processes like Pad-Steam.

    Key Application Fields

    Vat Navy BR is not for fast fashion; it is for high-performance textiles.

    • Workwear & Uniforms: Ideal for mechanics, medical staff, and military personnel where uniforms undergo rigorous cleaning cycles.
    • Home Textiles: Perfect for towels, bed linens, and curtains that require resistance to chlorine bleaching and sunlight.
    • Cellulosic Fibers: Primarily used for dyeing cotton, linen, and viscose rayon.
    • Outdoor Fabrics: Due to its high light fastness, it is suitable for tents, awnings, and outdoor furniture covers.
    • Yarn Dyeing: Widely used in cheese dyeing for producing high-quality colored yarns for weaving.

    Safety and Precautionary Measures

    While Vat Navy BR is safe when handled correctly, standard industrial safety protocols must be followed during the dyeing process.

    • Respiratory Protection: The product is a fine powder. Operators should wear dust masks (N95 or equivalent) to prevent inhalation during weighing and mixing.
    • Skin & Eye Protection: Always wear safety goggles and protective gloves. Although the dye itself is not highly corrosive, the reducing agents (Caustic Soda/Hydrosulfite) used in the vatting process are strong alkalis.
    • Ventilation: Ensure the weighing and mixing room is equipped with proper exhaust ventilation to minimize dust suspension.

    Storage and Handling Conditions

    To ensure the dye retains its strength and dispersibility over time:

    • Moisture Control: Store in a cool, dry place. The powder is stable, but moisture can cause clumping, which may affect dispersion in the dye bath.
    • Sealing: Keep containers tightly closed when not in use.
    • Environment: Store away from strong oxidizing agents and direct sunlight.
    • Shelf Life: typically 3-5 years if stored properly in original packaging.

    FAQ - Technical & Supply Chain

    • Q:

      Is Vat Blue 18 (CAS 1324-54-5) chemically superior to standard Indigo (Vat Blue 1) for workwear applications?

      A: Yes. While both are vat dyes, Vat Blue 18 offers significantly higher fastness properties compared to Indigo. Specifically, it provides superior resistance to chlorine bleaching and industrial laundering, making it the standard specification for naval uniforms and heavy-duty workwear where color retention over repeated wash cycles is critical.
    • Q:

      Does this dye require a specific "vatting" temperature for optimal reduction?

      A: Yes. Vat Blue 18 is typically classified as a "Warm Dyeing" (IW) or "Hot Dyeing" (IN) type depending on the specific commercial blend. It generally requires a reduction temperature between 50°C and 60°C with Sodium Hydrosulfite (Hydros) and Caustic Soda to fully convert the insoluble pigment into its soluble leuco form for effective fiber penetration.
    Documents

    Documents and Product Support

    For product review and sourcing evaluation, supporting documents can be coordinated according to the product type, inquiry stage, and order requirements.

    • COA for batch-based quality reference
    • TDS for key physical and chemical information
    • SDS / MSDS for handling, storage, and safety reference
    • Packing information for sample, trial, and bulk orders
    • Technical communication based on application and specification requirements
    Quotation

    Information to Confirm Before Quotation

    Clear sourcing information helps reduce specification mismatch and allows a more accurate quotation before sample or bulk order discussion.

    • Product name and CAS number
    • Application or intended end use
    • Required purity, grade, or specification
    • Sample quantity, trial order, or bulk demand
    • Preferred packing form or net weight
    • Destination country or port
    • Required documents or compliance expectations
    Storage & Handling

    Packaging, Storage, and Handling Notes

    Packaging form, storage conditions, shelf life, and shipment arrangements should be confirmed according to the product characteristics, package size, and destination requirements.

    Before order confirmation, buyers are advised to review the corresponding product documents and confirm whether any special storage, labeling, or handling requirements apply.

    Supply Support

    Sample, Bulk Order and Repeat Supply Support

    Support can be arranged for sample discussion, bulk supply planning, packaging confirmation, and routine sourcing communication based on the actual product and order requirements.

    For repeat-use formulations or long-term procurement plans, buyers may discuss specification consistency, packaging preferences, delivery expectations, and document coordination in advance.

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    Colorant Ingredient Indanthrone Dye Textile Dye Vat Dye

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