Abstract

Due to eco-friendliness of natural dyes and the awareness among people regarding the environmental and health hazards associated with the use of synthetic dyes, the craze for the clothing dyed with natural dye is increasing day by day. The aim of the work is to produce a variety of shades on the silk fabric by using Onion (Allium cepa) outer skin with different types of mordants such as Alum, Copper Sulfate, and Potassium Dichromate. Three different techniques of mordanting (Pre-mordanting, Meta-mordanting, and Postmordanting) have applied. The color fastness properties of dyed materials have also analyzed. After assessment of color fastness, it was found satisfactory in some cases and improved in many cases. As Onion is available and cheap, it will be convenient to produce unique shades of silk fabric, and to produce trendy and fashionable garments.