Enhancement of Antimicrobial and Dyeing Properties of Cellulosic Fabrics via Chitosan Nanoparticles

Abstract

The primary goal of this study is to prepare chitosan nanoparticles (CSNPs) by the ionic gelation method via the treatment of chitosan (0.2 wt.%) with tripolyphosphate (0.2 wt.%) ultrasonically for 45 min. FT-IR spectroscopy and TEM images were used to characterize and validate CSNP production. Cellulosic materials with different concentrations of CSNPs have better antibacterial and colouring characteristics. The treated cellulosic fabrics were analyzed by FT-IR spectroscopy, SEM, and thermogravimetric analysis. Colourimetric data measurements expressed in K/S values were used to evaluate the impact of CSNPs on the dyeing affinity of cellulosic materials. In addition, antibacterial activity against bacteria and fungi was tested on the treated cellulosic fabrics. According to the K/S values, cellulosic textiles treated with CSNPs (0.3 wt.%) had a better affinity for acid dyeing. These textiles also offer better antibacterial properties and are more resistant to washing, light, and rubbing. A cytotoxicity study found that CSNPs give cellulosic materials antibacterial and acid dyeing properties, which is good for the environment.

Kevlar®, Nomex®, and VAR Modification by Small Organic Molecules Anchoring: Transfusing Antibacterial Properties and Improving Water Repellency

“…These included a strong band at 1641 cm −1 , attributed to the stretching vibration of the Scheme 2. ADMH grafting polymerization onto the fibers, followed by the chlorination procedure [6][7][8][9]18].…”

“…Anchoring onto the fabrics took place via the radical homopolymerization of the vinyl moieties of the monomers with benzoyl peroxide (BPO) as the initiator [ 7 ]. In the literature, there are alternative procedures for the anchoring of compounds onto fabrics, such as the cure-pad-dry process [ 9 ].…”

“… ADMH grafting polymerization onto the fibers, followed by the chlorination procedure [ 6 , 7 , 8 , 9 , 18 ]. …”

“…Thus, a higher portion of the chemical bond contributes to the fiber’s strength [ 5 ]. Nomex ® ( m -aramid) and Kevlar ® ( p -aramid) are examples of high-performance materials that possess superior mechanical properties, fire resistance, excellent thermal, chemical, and oxidative stabilities, poor solubility in many solvents, as well as increased tensile strength [ 6 , 7 , 8 , 9 ]. Fabrics manufactured from these high-performance fibers find wide use in many demanding applications and are worn by firemen, military and medical personnel, race car drivers, and more [ 10 ].…”

Green fabrication of chitosan nanoparticles using Lavendula angustifolia, optimization, characterization and in‑vitro antibiofilm activity

“…. Cellulosic fabrics treated with CNPs offer enhanced antibacterial and colouring properties, as well as increased resistance to laundering, light, and scratching 11 . CNPs serve as an eco-friendly green anchor finish that strengthens the fabric's structure.…”