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        Multi-response Optimization in the Development of a Superhydrophobic Cotton Fabric Using ZnO Nanoparticles Mediated Resin Finish under Taguchi Based Grey Relational Analysis and Fuzzy Logics Approaches

        Naseer Ahmad,Shahid Kamal,Zulfiqar Ali Raza,Sharjeel Abid,Muhammad Zeshan 한국섬유공학회 2020 Fibers and polymers Vol.21 No.5

        Present work investigates multi-response optimization in development of super-oleohydrophobic cotton fabricunder pad-dry-cure method. A bleached cotton fabric was treated with ZnO nanoparticles (NPs) incorporated oil and waterrepellent finish (Oleophobol CP-C®) to impart in it antibacterial activity, UV protection and super oleo/hydrophobicity. Taguchi based fuzzy logics and grey relational analytical techniques were employed to obtain simultaneous optimum settingsof input parameters including concentrations of ZnO NPs, O-CPC® finish and Knittex FEL®, and curing temperature formultiple responses. The fuzzy logics and grey relational analysis were employed on the experimental data to determinesignificant process parameters for optimization of multiple responses. The present set of techniques was effectively used todevelop super-hydrophobic (WCA: 162 o) and oleophobic (OCA: 140 o) cotton fabric along with appropriate textileproperties as reported in the text. The developed fabric has potential uses in various domestic and house-hold applicationsdue to its antibacterial, self-cleaning, non-staining and UV-protection properties.

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        Chitosan Mediated Formation and Impregnation of Silver Nanoparticles on Viscose Fabric in Single Bath for Antibacterial Performance

        Zulfiqar Ali Raza,Umaira Bilal,Unsa Noreen,Somayyah Abdul Munim,Shahina Riaz,Muhammad Umar Abdullah,Sharjeel Abid 한국섬유공학회 2019 Fibers and polymers Vol.20 No.7

        Cellulosic materials being biodegradable are susceptible to bacterial attack. Present study was meant to develop anantibacterial viscose fabric via a clean, easy and reproducible approach. Silver nanoparticles (SNPs) were prepared usingchitosan both as reducing and as well as stabilizing agent to promote green synthesis of SNPs. The prepared SNPs werecharacterized using dynamic light scattering and UV-visible (vis) absorption spectroscopy. The average size of SNPs wasfound to be 8.574 nm with respective zeta potential of +45.2 mV using AgNO3 concentration of 1 mM and chitosan as 1 %(w/v). Pre-treated viscose fabric was undergone an in situ treatment to impregnate SNPs on its surface under certain autoclaveconditions. Scanning electron microscopy revealed the presence of SNPs on surface of treated viscose fabric in comparisonwith the untreated fabric. In addition, Fourier transform infrared and elemental analysis confirmed the presence of silver onthe treated fabric. The textile properties of the viscose fabric samples like; tensile strength, wettability, antibacterial activityand whiteness were evaluated using the standard protocols. The developed treated viscose fabric showed good antibacterialproperties against both Gram negative Escherichia coli and Gram-positive Staphylococcus aureus bacterial strains with fairtextile characteristics. This is the first report on in situ fabrication and impregnation of SNPs using chitosan as both reducingand stabilizing agent on a regenerated cellulose fabric like viscose.

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