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

Acid Brown 355 is an acid metal complex dye formulated for application on protein fibres and polyamide substrates, supplied by Karsandas Mavji from their Mumbai, Maharashtra facility. This dye falls within the broader Acid Brown BL colour index designation, a metal-complexed azo dye structure that delivers enhanced lightfastness and wet-fastness properties compared to conventional acid dyes. The supplier indicates availability in multiple packaging configurations, with formulation based on acid-base chemistry using certified raw materials sourced through established vendor channels. The dye is positioned for industrial textile processing, with stated compatibility across wool, nylon, silk, paper, leather and ink applications.

Acid metal complex dyes of this type typically feature a 1:1 or 1:2 metal-to-dye ratio, with chromium or cobalt as the coordinated central metal ion. The 1:2 metal complex structure generally offers superior migration and levelling characteristics on wool, while 1:1 complexes provide stronger exhaustion and deeper shades on nylon. Standard commercial forms include powder and liquid variants, with typical active content ranging from 30% to 50% depending on standardisation. The dyeing pH for metal complex acid dyes typically falls between 4.5 and 7.0, with application temperatures from 80°C to 100°C. Good build-up properties allow coverage of depths from pale to heavy shades, with typical liquor ratios of 1:10 to 1:30 in batch processing.

Primary buyers include woollen mills, carpet manufacturers, hosiery producers, nylon fabric dyers, leather tanneries, speciality paper mills and ink formulators across export and domestic markets. The dye is used in piece dyeing, yarn dyeing and continuous processing routes. For import buyers, confirming the specific metal content (chromium, cobalt or iron complex), exact colour index constitution number and batch-to-batch consistency protocols is essential before committing to volume orders. Packaging options, minimum order quantities and lead times should be discussed directly with Kandas Mavji, as these operational specifics are not stated in the available listing data.

Karsandas Mavji operates from 203 Rangwala Apts on M.G. Road in Ghatkopar West, Mumbai, Maharashtra, India, postal code 400086. The supplier holds a harbour trust tier classification on the platform, with a recorded response rate of 0.00% and an average response time of zero hours, indicating no historical inquiry response data is available. The company positions itself as a manufacturer of acid metal complex dyes within the Indian market, with specific focus on the Acid Brown 355/BL product line.

The supplier profile states procurement of acid and compound raw materials from certified market vendors, and offers multiple packaging options for customer flexibility. No information is provided regarding production capacity, factory certification, export licence status, year of establishment, employee count, annual revenue, or named client references. Buyers should independently verify manufacturing credentials, quality management systems and export compliance documentation before placing orders.