Oswal Udhyog manufactures Acid Yellow 1 Dye. Oswal Udhyog is an ISO 9001:2000 certified company. The Company also manufactures various types of dyestuffs, pigments and dye intermediates. This Acid Dye is a water-soluble anionic dye. The Acid Yellow 1 Dye is applied to fibres such as silk, wool, nylon and modified acrylic fibres using neutral to acid dye baths. This Acid Dye is also used to colour basic tissue proteins. The production process of this Acid Dye is strictly checked before approval for dispatch.