Manisha Kumari Manisha Gahlot Anita Rani Sakshi


Today universe is inclined towards eco-friendly and sustainable products. Its interest is shifting from synthetic products to natural once. The present study involves the optimization of extraction pH of natural dye and optimization of dyeing parameters for dyeing of silk fabric using response surface methodology (RSM). The extraction of dye from the leaves of Pyrus pashia (Wild Himalayan pear) was carried out in acidic, neutral and alkaline pH. The neutral pH exhibited the highest colour strength than alkaline and acidic pH. Box-Behnken Design (RSM) was used for optimization of dyeing variables. The effect of independent variables i.e. dye material concentration, dyeing time and temperature were assessed on dependent variable i.e colour strength of the dyed silk fabric sample. The optimized dyeing variables obtained for application of P. pashia leaf dye on silk fabric were 5% (w/v) dye material concentration, 70°C dyeing temperature and 45 minutes dyeing time. It not only creates a source for a natural dye but can also lead to creating employment amongst the rural people. P. pashia has a potential to colour silk fabric and can be used to dye other natural fibres such as cotton and wool which can be a step towards sustainable development. dyeing with its leaf extract can be helpful in promoting eco-friendly processing of textiles.


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Box-Behnken Design, Eco-friendly dye, Pyrus pashia, Silk dyeing

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Kumari, M. ., Gahlot, M. ., Rani, A. ., & Sakshi. (2020). Extraction of natural dye from the leaves of Wild Himalayan pear (Pyruspashia) and optimization of the dyeing parameters using Box-Behnken Design (RSM). Journal of Applied and Natural Science, 12(4), 497-503. https://doi.org/10.31018/jans.v12i4.2383
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