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|Title:||Influence of UV radiations on the extraction and dyeing of cotton fabric with Curcuma longa L|
Bhatti, Ijaz A
|Keywords:||Cotton;Curcuma Longa L;Mordanting;UV Radiation;Spectraflash SF650|
|Abstract:||The methanolic extract of irradiated Curcuma longa L powder has been prepared and used to study the dyeing conditions and characteristics of dyed cotton fabrics. The dyeing parameters such as time, material-to-liquid ratio and salt concentration have been optimized. To improve the colour fastness, pre- and post-mordanting has been carried out using copper , iron and alum mordants. The dyed samples are subjected to CIE Lab system using spectraflash SF-650 for the evaluation of colour strength and L*, a* and b* values. Finally, ISO standard methods are employed to study the colour fastness of dyed and mordanted fabrics. It is observed that the UV-radiation not only enhances the colour strength of dye on cotton fabric but also improves the colour fastness properties of irradiated cotton using methanol solubilized extracts of pre-irradiated Curcuma longa powder.|
|ISSN:||0975-1025 (Online); 0971-0426 (Print)|
|Appears in Collections:||IJFTR Vol.37(1) [March 2012]|
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