Abstract
Effect of pH on the Dye Absorption of Jute Fibre Dyed with Direct Dyes
Md. Ibrahim H. Mondal* and Md. Khademul Islam
DOI : http://dx.doi.org/10.13005/ojc/300416
Abstract:
Dyeing of direct dyes, viz. Direct Yellow 29, Direct Orange 31 and Titan Yellow, has been carried out on jute fibre in the presence of sodium sulphate as an electrolyte. The effect of pH on dyeing have been studied and the results showed comparatively better dye uptake at pH 8.0. Assesment of light and wash fastness, acid and alkali spottings, and breaking strength of direct dyed jute fibre was carried out. Direct Orange 31 showed comparatively better fastness properties than other dyes.
Keywords:fibre; Dyeing; Light fastness; Breaking strength and Direct dye
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