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Dry Finishing Using Plasma Treatment for Shortening the Initial Wet Finishing of Cotton Fabrics
Nezam Samei,Sheila Shahidi,Rattanaphol Mongkholrattanasit 한국섬유공학회 2022 Fibers and polymers Vol.23 No.12
Simultaneity of different processes in finishing of textile products is very useful. It causes reducing energyconsumption and increasing the speed of production. Moreover, by this way it is possible to reduce water consumption andenvironmental pollution. In this research, synchronizing the processes of desizing, scouring and bleaching at ambienttemperature for raw cotton fabrics have been investigated using plasma technology. In this work plasma textile activator,under air atmospheric pressure was used. Untreated and plasma treated cotton fabric were desized, scoured and bleachedusing a solution containing alkaline peroxide and ammonium persulfate as an oxidation accelerator by padding method atroom temperature (Cold Pad Batch). In order to evaluate the results of this treatment, the amount of impurities, degree ofwhiteness and wettability of untreated and plasma treated fabrics were investigated and compared with each other. The resultsshow that the starch partially remains on untreated fabric, while by plasma treatment the starch is completely removed. Plasma treated fabrics have a higher degree of wetting and a higher whiteness than those of untreated. Results of this studyindicate that the plasma treatment of cotton reduces the time it takes to remove starch from cotton products. SEM images ofuntreated and plasma treated fabrics, as well as FTIR spectra of the fabrics; indicate the degradation of starch by the plasmaprocess and the increase of polar groups in cotton fibers. Also, by performing a dry plasma treatment on raw cotton, whileallowing the desizing, scouring and bleaching steps to be simultaneously, economized in water and energy at a single stageand at ambient temperature.
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