Optimization of Wool and Silk Blend Dyeing Using α-Bromoacrylamido Reactive Dyes by Response Surface Methodology by Asim Kumar Roy Choudhury in Latest Trends in Textile and Fashion Designing (LTTFD) - Lupine Publishers
Dyeing of wool and silk fibre blend in a single bath dyeing process is
very difficult process due different absorption of dyestuff by these fibres. Wool is become darker than the silk fibre. Here wool fibre is
first pretreated with a commercial syntan and then dyed with silk fibre
using a bromoacrylamido reactive dyes. The process of dyeing is
optimized my Central composite design using response surface
methodology. Wool and silk fibre are dyed together in a single bath dyeing process
using three different types of a Bromoacrylamido reactive dye. To
improve the solid dyeing effect of wool and silk fibre, the blend fibres
are dyed together with different pH and sodium sulphate concentration
and percentage of dyestuff. It is observed that there is lot of
difference between the wool and silk fibres colour strength after the
dyeing completed. Wool fibres are looking darker and the silk fibres are
lighter when they are dyed together in a single bath dyeing process. To
reduce the colour difference between the blend components, wool fibres
were pre-treated with a commercial syntan Mesitol HWS at different pH
and concentrations. After that, the syntan-treated fibres were dyed with
silk in presence of sodium sulphate to achieve the solid dyeing effect.
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