Natural dyes fromEucalyptusleaf extract, quercetin, rutin, and tannin were applied to silk fabric by pad-batch and pad-dry techniques under different conditions. Ferrous sulfate was used as a mordant. The dyeing properties were evaluated by measuringK/SandCIELABvalues. In addition, the different fastness properties were evaluated. The effect of dyes at different concentration levels with respect to their colour strength was also studied.
The present study was undertaken to use flour of wild taro (ColocasiaEsculenta (L.) Schott) as a resist printing paste for silk fabric and using reactive dye as a dyestuffs. The K/S values, whiteness index and sharpness of printed silk fabric were studied. The washing, water, perspiration, light and rubbing fastness of the printed fabric was also evaluated. From the present work it can be concluded that the pattern at resist printing area of silk fabrics show sharpness and whiteness. Colour fastness to water and perspiration were ranging between poor to fair level. Printed fabric exhibited fair to good level in washing, rubbing and light fastness. The advantages of this product are environmental friendly that is non-toxic fumes; production cost is lower, instance application and creative process enhancement in textile production.
This research examined a dye extracted from eucalyptus leaves and its application to wool fabric using pad-batch and pad-dry techniques under various conditions. A wool fabric dyed in a solution containing eucalyptus extract gave a shade of pale yellowish brown except when it was dyed with FeSO 4 , resulting in a shade of dark grayish brown. The fastness properties of dyed fabrics ranged from good to excellent, while light fastness was fair to good. It was observed that the fabric had excellent ultraviolet protection factor (UPF) values. In addition, a darker colour provided by FeSO 4 gave better protection because of its higher UV absorption.
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