从Pakistan供应商批发进口Acid Violet — FOB条款

Acid Violet 54 from I & K Enterprises is a synthetic acid dye belonging to the azo or anthraquinone class, commonly applied to protein fibres such as wool, silk and nylon, and to leather in tanning and finishing operations. The Colour Index designation 54 places it within the acid violet shade range, with typical appearance as a dark powder or granule yielding a violet to purple hue in application. Acid dyes of this class require acidic pH conditions for proper exhaustion onto substrate, typically using acetic or sulphuric acid in the dyebath. The supplier offers this material from their Lahore base in Punjab province, with stated capability to supply both regular and bulk order quantities.

The chemical structure of Acid Violet 54 typically features sulfonic acid groups conferring water solubility and affinity for cationic sites on protein fibres. Standard commercial strength ranges from 150 percent to 200 percent of the theoretical pure dye content, though the exact strength from I & K Enterprises requires direct confirmation. Typical moisture content for acid dye powders is 5 percent maximum at time of packing; higher values suggest storage degradation or inadequate drying. The dye should exhibit solubility of at least 50 g/l in water at 80 degrees Celsius for conventional wool batch processes, with good migration and levelness properties under controlled pH decline from 6 to 4.5.

Principal applications include wool carpet yarn, garment piece dyeing, silk textile printing, nylon hosiery and leather upper colouring. Textile processors value Acid Violet 54 for its brightness and moderate fastness to washing and perspiration, though light fastness typically reaches only 4 on the ISO Blue Scale, making it more suitable for indoor or fashion articles than outdoor furnishings. Leather tanners use it for aniline and semi-aniline finishes where transparency and colour clarity matter. Buyers should request from I & K Enterprises the specific physical form (powder, granule or liquid concentration), exact dye content percentage, and any restraining or levelling auxiliaries recommended for their target substrate and process.

I & K Enterprises is located at 158-a, New Muslim Town, Lahore 54000, in Punjab province, Pakistan's second-largest city and a significant chemicals trading hub with road and rail connections to Karachi port. The company holds a harbor trust tier, indicating basic profile presence without extensive verification signals. With a 0.00 response rate recorded, prospective buyers should anticipate that initial contact may require persistence through multiple channels, or consider engaging a local sourcing agent in Lahore for preliminary qualification and sample procurement.

The listing explicitly states payment by bank transfer or wire transfer upfront against pro forma invoice, which places risk on the buyer before shipment; there is no mention of documentary credit, escrow or payment against documents. I & K Enterprises does not disclose manufacturing ownership, warehouse capacity selector certification scope, years in operation, employee count, annual turnover or named clients. Buyers should treat this as a trading operation requiring standard due diligence: request business registration documents, bank references, and if possible arrange a physical or third-party audit before committing to substantial volume. The willingness to quote on MOQ, quality and delivery time suggests flexibility, but all terms require written confirmation.