Abstract
The printing of cellulosic materials using nanoparticles is seldom reported. In this investigation, cotton fabrics were successfully printed with 2%, 5%, 8% and 10% of colloid metal oxide nanoparticles through the reduction of copper, magnesium and nickel salts using biological Cynomorium Coccineum extract. Fourier transform infrared spectroscopy (FT-IR) of the colored cotton displayed the presence of peak characteristics of phenolic groups of the biological extract. Both scanning electron microscopy (SEM) features and the shifting of the main peaks in X-Ray diffraction (XRD) analysis showed that the nanoparticles were embedded on the cellulose surface. The color depth (K/S) indicated the wine-red color of the printed samples. It was affected by the type of the metal, colloid metal concentration, number of the cycles of printing, and mordant quantity. The printed samples exhibited very good wash and rubbing fastness results. The biological activity of all printed cotton fabrics showed their ability to reduce the viable total count of Staphylococcus aureus, Salmonella typhi, and Candida albicans microbes in their microbial suspensions, with different efficiency depending on the type of both colloid metal and nature of the microbe. Cotton printed with nickel oxide nanoparticles showed high activity against Salmonella typhi.
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•Cynomorium Coccineum was use to synthesize colloid metal oxide nanoparticles.•Cotton was printed with 2%, 5%, 8% and 10% of colloid metal oxide nanoparticles.•Printed cotton exhibited excellent color yields and biological activity.•Cotton printed with nickel oxide nanoparticles showed high activity against Salmonella typhi.