从India供应商批量进口Acid Brown 355 - Orange M2rl

Acid Brown 355, also known as Orange M2rl, is a metal complex acid dye from Karsandas Mavji in Mumbai, India. This pre-metallised dye forms coordination bonds with transition metal ions, giving it superior lightfastness and washfastness compared to conventional acid dyes. The Orange M2rl shade sits in the brown/orange gamut of the 1:2 metal complex range, offering moderate to high exhaustion on protein and polyamide substrates at pH 4.5 to 6.5. Karsandas Mavji formulates this product from acid compounds sourced through their established vendor network in Maharashtra.

The dye's metal complex structure typically involves chromium or cobalt centrally coordinated to formazan or azo ligands. This 1:2 metal to dye ratio produces neutral dyeing characteristics with minimal fibre damage at boiling temperatures. The formulation contains sulphonic acid groups for water solubility and substantivity toward wool and nylon. Standard commercial strength is 150 to 200 percent, though the exact concentration should be confirmed with the supplier. The product ships in moisture-proof containers to prevent caking and premature hydrolysis during Mumbai's humid monsoon season.

Textile dyers use Acid Brown 355 for wool carpets, nylon hosiery, silk fabrics, and leather finishing where migration levelness and barium-free metal complex status are required. Paper mills and ink formulators also specify this shade for packaging and printing applications. Karsandas Mavji operates from Ghatkopar West with a Harbor trust tier and zero recorded response rate on this platform, so buyers should initiate contact directly to confirm current MOQ, available pack sizes, and lead time from Mumbai port.

Karsandas Mavji is based at 203 Rangwala Apts on M.G Road in Ghatkopar West, Mumbai 400086, Maharashtra, India. The supplier holds a Harbor trust tier on this platform, which represents a baseline verification level. Their response rate shows zero percent with no recorded average response hours, indicating either limited platform engagement or that communication occurs outside this channel. Buyers should not rely on platform messaging alone and should contact the supplier directly via the provided Mumbai address or alternate channels to establish communication.

The company positions itself as a manufacturer of acid metal complex dyes in India, with Acid Brown 355 being one shade in their range. Their source description notes that dyes are available in different packaging options and are formulated with acids and compounds from certified vendors. However, no specific factory size, production capacity, years in operation, or client names are disclosed. The listing does not state ISO certification, OEKO-TEX approval, or REACH registration status, so buyers requiring these should request documentation directly from Karsandas Mavji before placing orders.