Vipul Dye Chem Ltd. Offers Acid Dyes. Vipul Dye Chem Ltd. Is an ISO 9001-2000 certified manufacturer and exporter of Fast colour bases, Napthols, Fast colour salts and Dyes intermediates. The Acid Dyes are suitable to dye nylon, wool, silk, Lycra, leather, etc. These are eco-friendly and free from all Prohibited Amines. Fertilizer Acid Green and Acid Blue are also available. These are also applicable for general industrial purposes. These Acid Dyes come in 25 kg or 50 kg plastic drums or4 carton boxes or iron drums.