Pretreatment of Cotton

Jhatial, Abdul Khalique; Yesuf, Hanur Meku; Wagaye, Bewuket Teshome

doi:10.1007/978-981-15-9169-3_13

Cited by 4 publications

(5 citation statements)

References 19 publications

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“…It has a role as an antacid and a food anti-caking agent [18]. Joshi et al [24] studied the compression of alkaline scouring and enzymatic scouring. Based on the results of their studies, they concluded that bioscouring using marine pectinase obtained comparable results to alkaline scouring.…”

Section: Resultsmentioning

confidence: 99%

Influence of Cotton Bleaching Methods on the Parameters of Generated Textile Industrial Wastewater

Uğur,

Karaboyacı,

Boguniewicz-Zablocka

2023

Sustainability

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The environmental impact of industrial wastewater after bleaching requires special attention to prevent the pollution of aquatic ecosystems. The aim of this study was to compare the effluent parameters obtained after using a traditional bleaching method and an alternative enzymatic bleaching method in order to assess their possible environmental impacts. In the classical bleaching method, NaOH and H2O2 were used, and in the alternative method, pectinase enzyme, H2O2, and sodium carbonate were used as the bleaching agents. The bleaching process was designed by determining the optimum amount of pectinase enzyme, the optimum temperature, and the optimum amount of peroxide. The whiteness of the treated cotton yarns was also evaluated. The different bleaching processes were analyzed and evaluated in terms of the wastewater discharged, the pH, chemical oxygen demand (COD), total dissolved solids (TDS), total suspended solids (TSS), and conductivity. These data show that the use of the pectinase enzyme allows us to obtain much lower COD and TSS values compared to those obtained using traditional bleaching. At the same time, the use of the proposed enzymatic bleaching method reduces the environmental impact since lower concentrations of pollutants are obtained in the effluent. Therefore, the pretreatment of wastewater may require the selection of a simpler and more environmentally friendly technology, such as enzymatic bleaching.

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Section: Resultsmentioning

confidence: 99%

Influence of Cotton Bleaching Methods on the Parameters of Generated Textile Industrial Wastewater

Uğur,

Karaboyacı,

Boguniewicz-Zablocka

2023

Sustainability

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“…The common desizing processes used in the industry are acid desizing, alkali desizing, and desizing with hot water. These processes cannot completely remove the starch from the fabric . Enzymatic desizing is also practiced .…”

Section: Introductionmentioning

confidence: 99%

“…These processes cannot completely remove the starch from the fabric. 9 Enzymatic desizing is also practiced. 10 α-Amylase was used for the degradation of starch in cotton fabric desizing.…”

Section: Introductionmentioning

confidence: 99%

Sustainable Photocatalytic Desizing Process for the Starch-Based Size

2023

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Textile wet processing highly impacts the environment due to its massive water and energy consumption. High consumption of water also results in the generation of a considerable volume of effluents. In this regard, an ultraviolet C (UVC)-assisted desizing method of starch-sized cotton fabric has been developed to lower the utility consumption in textile pretreatment. A UVC cabinet is designed to control exposing temperature and energy of exposure on the starch-sized cotton fabric. The UVC exposure time is optimized concerning the desizing efficiency. The UVC-exposed-sized fabric is washed with different washing times and washing temperatures to optimize the process. The alkali consumption in washing is reduced by 75% and desizing efficiency is improved to 95%. The application of oxidizing agents like NaNO 2 , K 2 S 2 O 8 , and NaBO 3 •4H 2 O during sizing further reduced the washing temperature and washing time for desizing to obtain 100% desizing efficiency. The UVC-assisted desized fabric is characterized by the whiteness index, water absorbency, tensile strength, Fourier transform infrared (FTIR), and wide-angle X-ray diffraction and compared with the control. The UVC-assisted desizing process has the potential to save approximately 60% water, 90% energy, and more than 70% of the time. Life cycle analysis has also been done. The photocatalytic desizing process can reduce the impact on human health by more than 85% and save approximately 69% of mineral resources than the conventional technique. The textile industry can quickly adopt a novel approach for sustainable desizing.

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“…Therefore, the removal of the impurities as completely as possible is mandatory for the wet-processing of textiles which is mainly based on water absorption of the substrates. 7–9…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, the removal of the impurities as completely as possible is mandatory for the wet-processing of textiles which is mainly based on water absorption of the substrates. [7][8][9] Scouring is the removal of oily substances from textiles. Scouring reduces the impurities completely or sufficiently to obtain uniform and reproducible results in dyeing and finishing operations.…”

Section: Introductionmentioning

confidence: 99%

Combined scouring-bleaching of cotton fabric from wild yam root

Amanuel

2022

Journal of Engineered Fibers and Fabrics

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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.

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Pretreatment of Cotton

Cited by 4 publications

References 19 publications

Influence of Cotton Bleaching Methods on the Parameters of Generated Textile Industrial Wastewater

Influence of Cotton Bleaching Methods on the Parameters of Generated Textile Industrial Wastewater

Sustainable Photocatalytic Desizing Process for the Starch-Based Size

Combined scouring-bleaching of cotton fabric from wild yam root

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