Vipul Dye Chem Ltd. Offers Napthols for Fast Base Dyeing. 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 Napthols for Fast Base Dyeing are suitable for textile industry. These are used as Azoic Coupling Components. They have good fastness properties and 6-7 light fastness. These are also applicable for African print or wax print. These Napthols for Fast Base Dyeing come in powder form and in 25 kg HDPE bags with inside double liner.