Synthesis and Characterization of Freeze Dryer Chitosan Nano particles as Multi functional Eco-Friendly Finish for Fabricating Easy Care and Antibacterial Cotton Textiles

Abstract

A NTIBACTERIAL and easy care characteristics were imparted to cotton fabrics using multifinishing formulation comprising citric acid (CA) and chitosan nanoparticles (CNPs) as an eco-friendly finish. The latter of size around 60-100 nm were prepared through polymerization of meth acrylic acid (MAA) with chitosan using potassium permanganate as initiator and characterized using scanning electron microscope, transmittance electron microscope, Fourier transformer infrared spectroscopy, particle size analyzer, X-ray diffraction and thermo gravimetric analysis. Different factors affecting the degree of multifinishing treatment and their onset on fabric performance and antimicrobial activity were studied and optimized according to pad dry cure method. This was done to see the impact of chitosan nanoparticles to accomplish multifunction characteristics on cotton fabrics like reasonable strength loss, comparable wrinkle recovery angles, elongation at break, higher fabric stiffness and suitable durability in addition to antibacterial activity. It was seen from the attained results that; FTIR spectra and SEM micrograph showed the change in chemical structure and surface morphology of cotton fabric before and after finishing in absence and presence of chitosan nanoparticles. These fabrics parade antimicrobial activity against gram-positive and gram-negative bacteria tested even after 10 washing cycles. Mechanism of finishing of cotton fabric using citric acid and CNPs is identified.

Alternative microwave curing approach for imparting ease and care characteristics and antimicrobial activity to viscose fabric

“…amino and carboxylic as well as hydroxyl groups can easily reacts with the fabric together with citric acid and reinforce the fabric structure (reaction 2 dominant). this is in full agreement of our pervious published reports (Mostafa et al , 2019; Morsy et al , 2019). Besides, microwave energy is believed to uniformly heat the viscose fabric from inside to outside, which results in a uniform distribution of crosslinks and other ingredients throughout the microstructure of the viscose fabric.…”

“…2 and 3). This is in full agreement with the obtained results of our previously published reports (Mostafa et al , 2019; Morsy et al , 2019).…”

“…The latter interact with negatively charged residue on the surface of bacteria; such interaction causes extensive changes in the cell surface and cell permeability leading to leakage of intercellular substances. In this way, the growth of bacterial species is hindered and, finally, leads to the death of these cells (Mostafa and El-Sanabary, 2020; Zhao et al , 2011; Ibrahim et al , 2019; Morsy et al , 2019; Mostafa et al , 2020).…”

“…Citric acid is safe in process and use and can be applied easily and economically on textile fabrics. It is one of the poly carboxylic acids which have been used as a substitution for formaldehyde releasing conventional N-methylol compounds especially in durable press finishing processes to impart ease and care characteristics especially for wrinkle resistance in presence of sodium hypophosphite as a potential catalyst for ester crosslinking (Mostafa et al , 2019; Morsy et al , 2019; Welch and Kottes Andrews, 1989; Choi et al , 1993; Schramm et al , 2002). However, there are a limited reports about the possibility of imparting desirable anti-bacterial activity, ease and care and reinforcement functionalities to the viscose fabric using a proper an echo-friendly finishing technique (Mostafa et al , 2019; Morsy et al , 2019; Mostafa et al , 2020; Mostafa and El-Sanabary, 2020; Roy Choudhury, 2017; Ibrahim et al , 2018).…”

Effectiveness of Goji Berries (Lycium barbarum) Extract and Some Nanoparticles Loaded on Gelatin Film on Microbial Content of Labneh

“…The reason for the low number of microorganisms may also be attributed to the role of nanoparticles in reducing or inhibiting the growth of microorganisms that inhibit cellular enzymes and DNA by binding to electron-giving groups such as carboxylate, amides, indoles, hydroxyls, and sulfur groups, as well as it has the ability to creates holes in the bacterial cell walls, leading to increased permeability and cell death [17]. The inhibition ability of TiO2 NPs and ChNPs could be due to the interaction of the surface of the molecules with water when exposed to ultraviolet rays, which leads to the release of free radicals such as OH and O2, which represent a high oxidative power that leads to the destruction of bacteria [18].…”