Import Direct Black 22 — Buy in Bulk from Supplier in China

Direct black 22 is a synthetic azo dye used primarily for dyeing cellulosic and blended textiles. This product has a solubility of 35g/l at 80°C and is formulated for high-temperature and high-pressure applications. The supplier states its strength ranges from 100% to 200%, indicating it is a concentrated dye suitable for industrial batch processing. It is designed to deliver consistent black shades without requiring complex dyeing equipment.

The dye is compatible with copper-containing fixing agents and performs reliably on cotton, viscose, polyester/cotton blends, wool/viscose mixes, and pure silk for printing applications. In industrial practice, this dye typically meets the standard exhaustion rates for direct dyes on cellulosic fibers, with a typical pH stability range of 5 to 8 during dyeing. Its molecular structure allows for good penetration and fastness, though it is not recommended for light-sensitive applications where lightfastness above grade 4 is required.

Buyers commonly use this dye in textile mills producing medium to high-volume cotton-based apparel, home textiles, and printed silk fabrics. It is supplied in powder form, packed in 25kg multi-wall paper bags with inner polyethylene lining. Minimum order quantities are not stated, but bulk shipments are typical. Trade terms are not specified; buyers should confirm Incoterms, lead time, and packaging details directly with the supplier.

Tianjin Yadong Longxin International Ltd. is a supplier based in Tianjin, China, operating from a commercial address in the Nankai District. The listing indicates the company is imported and has harbor-level trust verification, suggesting it has passed basic platform compliance checks. No details are provided about production capacity beyond the stated annual output of 4,000 metric tons. There is no information on years in business, certifications, or client names.

The supplier does not disclose workforce size, revenue, or laboratory testing capabilities. Its response rate and average response time are zero, indicating no recent buyer interactions recorded on the platform. Buyers should treat this as a trading company rather than a manufacturer unless confirmed otherwise. The product data provided is limited to technical parameters and output volume, with no claims about quality assurance systems or third-party testing.