Import Direct Black 22 — Buy in wholesale FOB from Supplier in India

Direct Black 22 is a synthetic azo dye with the CAS number 6473-13-8 and molecular formula C44H32N13Na3O11S3, supplied as a fine powder. It is classified as a direct dye, meaning it bonds directly to substrates without requiring a mordant. This product is specifically formulated for use in leather, paper, and textile dyeing applications, where deep black shades and good wash fastness are required. The dye is produced in Gujarat, India, and meets standard industrial purity requirements for direct dye applications.

The chemical structure of Direct Black 22 includes sulfonate groups that enhance water solubility and affinity for cellulosic and protein fibers. It is typically applied in aqueous baths at temperatures between 60°C and 90°C, depending on the substrate. In textile dyeing, it is used on cotton, rayon, and paper pulp, while in leather processing, it provides consistent coloration without affecting hand feel. Standard purity levels for this grade are above 90%, with typical moisture content under 5% and insoluble matter below 0.5%. These values align with industry norms for direct black dyes used in commercial dye houses.

Buyers in the leather tanning, paper manufacturing, and textile printing sectors source Direct Black 22 for its high color yield and cost efficiency. It is commonly packed in 25kg multi-wall paper bags with inner polyethylene lining to prevent moisture absorption. Orders are typically fulfilled in bulk quantities of 500kg or more, with lead times of 10 to 15 days after payment confirmation. The dye is shipped under standard industrial chemical transport protocols, and buyers are advised to confirm the availability of a Material Safety Data Sheet before import.

Sparrowings International is a supplier of industrial dyestuffs based in Ahmedabad, Gujarat, India. The company operates from a registered commercial address in the Nana Chiloda industrial zone and is listed with a harbor-tier trust rating, indicating basic verification of business registration and physical presence. There is no public information regarding company size, years in operation, or client list, and no response rate or average response time is recorded on the listing, suggesting limited active engagement with buyers.

The supplier focuses exclusively on direct dyes for leather, paper, and textile applications, with Direct Black 22 being one of their primary offerings. They do not claim certifications such as ISO, OEKO-TEX, or REACH, nor do they list production capacity or export volume. Buyers should treat this as a manufacturer or trader with documented product knowledge but unverified operational scale. All claims are limited to the technical data provided in the product listing.