从India供应商批发进口Acid Brown 14 Dyes — FOB条款

Acid brown 14 is a synthetic azo dye with the chemical formula C26H16N4Na2O8S2, supplied by Sparrowings International from their base in Gujarat, India. This powder-form acid dye carries CAS number 5850-16-8 and EINECS number 227-447-6, positioning it within the regulated framework for industrial colourants used in leather and textile processing. The product is specifically formulated for affinity to protein fibres and chrome-tanned leather, where the sulfonic acid groups enable strong bonding to substrates under acidic conditions.

The dye structure features two sulfonate groups and an azo chromophore system, which delivers the characteristic brown shade with good light fastness on wool and moderate wet fastness properties. Typical commercial grades of Acid brown 14 show solubility in water and exhibit stability across pH ranges of 2 to 5, the standard application window for acid dyeing. Batch-to-batch consistency depends on the diazotization and coupling reaction controls during manufacture, with typical strength specifications ranging from 100 to 200 percent relative to a standard dye sample. The powder form offered by this supplier suits bulk dissolution in dye kitchens and automated dispensing systems.

Leather tanneries and textile commission dyers represent the primary buyers for this material, using it in shoe upper leather, garment suede, and woollen fabric shading. The dye also finds use in nylon hosiery and carpet applications where acid dye classes are specified. Importers should note that Sparrowings International lists no response data, so direct enquiry is needed to confirm current availability, minimum order quantities, packaging formats, and lead times for shipments ex-Ahmedabad.

Sparrowings International operates from D-101, Maruti Homes, opposite Shreenath Elegance, in the Nana Chiloda area of Ahmedabad, Gujarat, India, postal code 382330. The company holds a Harbor trust tier on the platform, indicating a verified business registration and documentation status, though this represents an entry-level rather than advanced verification grade. Their response rate shows 0.00 percent with zero average response hours recorded, which suggests either a new listing, dormant account, or data tracking issue rather than active engagement.

The supplier's profile indicates specialization in acid dyes for leather and textile dyestuffs, with Acid brown 14 marketed under their own Sparrowings brand name. No manufacturing capacity, year of establishment, employee count, or revenue figures are stated in the available data. Buyers should independently verify the company's production capabilities, quality control infrastructure, and whether they operate as a manufacturer, trader, or agent before committing to volume orders. The Gujarat location aligns with India's significant chemical and dye manufacturing cluster, but this geographic association alone does not confirm operational scale or export experience.