Import Direct Red 23 — Buy in Bulk from Supplier in China

Direct Red 23 is a synthetic azo dye used primarily in textile dyeing and industrial coloring applications. It has a medium red hue with high solubility in water and an annual production volume of 5,000 metric tons. The dye exhibits strong exhaustion rates during application, meaning a high proportion of the dye transfers from the bath to the substrate, reducing wastewater load. Its chemical structure enables consistent color development across cotton, wool, and synthetic fibers without requiring mordants.

The dye is formulated for industrial use and is compatible with a range of substrates including cotton, wool, and blended fabrics. It demonstrates good light fastness and resistance to washing, though exact ratings are not specified in the source. Typical industry standards for Direct Red 23 include a pH stability range of 6 to 8 and a solubility greater than 100 g/L at 20°C. The dye is not classified as a restricted substance under EU REACH Annex XVII, but users should verify local compliance regulations.

Buyers in the textile manufacturing sector use this dye for bulk dyeing operations where color consistency and efficiency are critical. It is also applied in the coloring of paper and certain plastics. Trade terms include flexible minimum order quantities and shipping options such as FOB and CIF. Buyers should confirm batch-to-batch consistency through lab dip testing before large-scale procurement. Packaging is typically in 25kg bags or drums, but exact packaging type must be confirmed with the supplier.

Tianjin Yadong Longxin International Ltd. is an imported supplier based in Tianjin, China, operating from 3rd Floor, Block B, Haojingguoji Bldg. on Hongqi South Road. The supplier is verified through harbor trust tier signals, indicating active export activity. The listing does not disclose company history, employee count, or client list. Its operational focus appears to be on bulk dye supply with an annual output of 5,000 metric tons for Direct Red 23.

The supplier has no recorded response rate or average response time, suggesting limited buyer interaction on the platform. There is no mention of certifications, in-house labs, or quality control protocols. Buyers should request batch-specific test reports and sample approvals before placing orders. The supplier's strength lies in volume capacity rather than documented compliance or technical support.