Combined scouring-bleaching of cotton fabric from wild yam root

Abstract

The conventional single-stage pre-treatment technique requires more electricity, is more expensive, polluting, harmful, and unhealthy because it uses artificial chemical compounds and auxiliaries. This research focuses on environmentally friendly and cost-effective textiles scouring-bleaching of cotton fabric with saponin and wild yam (Dioscorea villosa L.) root powder. The root of the wild yam contains alkaloids, amylose starch, and saponin. The investigations discovered important findings in cotton wet processing by developing a safe, water- and electricity-saving scouring method. Cotton fabric, along with the utilization of wild yam roots resulted in a significant cost effective method. As a result, it was used as a natural surfactant, foam stabilizer, and emulsifier in this scouring. The single stage Bot scouring was optimized with 40 g of untamed yam and a weight to volume (MLR in W/V) (weight of fabric to water) ratio of 1:10 at 80°C for 60 min on a pH of 5–7. The treatment’s effectiveness was measured using a weight reduction percentage and an absorbency test (a drop of water, capillary upward thrust, sinking time). In terms of weight reduction, water absorbency, capillary boost, as well as amazing friendliness, scouring cotton fabric with wild yam powder at optimized scouring conditions is comparable to scouring cotton fabric with 30% (at the weight of cloth) caustic soda. To verify the fabric samples’ resistance to microbiological development and strength maintenance, wild yam and Caustic soda scoured cotton fabrics were subjected to a soil burial test. The fabric sample scoured with wild yam has a much lesser standard deviations of toughness and elongation at break than the caustic soda scoured and untreated control samples. The Single stage scouring of cotton fabric with wild yam powder met the requirements for green scouring while also providing antibacterial qualities.