Expansion of Natural Dye Colour Gamut for Use by the Local Textile and Craft Industry-Juniper Publishers
Natural dyes have been used since long back in various areas such as
textiles, craftwork, food colouring and also as medicine. This work was
based on expansion of the colour shade that can be obtained from natural
dyes for use by the small scale users. The natural dye was extracted
from three naturally available plants locally in Zimbabwe using the cold
extraction under gravity method. An alcohol was used to extract the dye
using a vacuum pump and left to dry. The extracted dye was then used to
dye fabric strips using different metals as mordants. From the colour
charts generated from the various dyeings it was shown that the shades
can be extended for certain plants and in some cases they are not easy
to expand. Application of the metal mordants at different concentrations
was also found to have an effect on the hue of the dyed fabric strips.
The results show that the natural dye from the Mukwa (Pterocarpus
anglonesis) gave a wider range of shades as compared to the other two
dyes.
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