Natural dyeing and antibacterial activity of atmospheric‐plasma‐treated nylon 6 fabric

Abstract

Atmospheric plasma treatment as an environmentally friendly method was employed to modify the surface properties and improve the absorption of natural cationic dye on to nylon 6 fabric. Nylon fabric was treated in atmospheric air plasma, and the surface characteristics of the fabric were evaluated using attenuated total reflection Fourier Transform‐infrared analysis, scanning electron microscopy, and a wicking test. The effects of plasma treatment and mordanting with copper sulfate on the dye uptake of the samples were investigated. Plasma‐treated and mordanted samples showed the highest colour strength when dyed. The antibacterial activity of samples was evaluated according to AATCC test method 100‐2004. Premordanting with copper sulfate showed a synergistic effect on the antibacterial properties of the dyed fabric. The plasma‐treated and copper‐sulfate‐mordanted sample showed acceptable antibacterial activity against both gram‐negative and gram‐positive bacteria when dyed with an extract from Berberis vulgaris, berberine.

Effects of Oxygen Plasma Treatment on the Physical and Chemical Properties of Wool Fiber Surface

“…The absorbency peak around 1,733 cm -1 is assigned to C = O stretching of carboxylic acid functional group [27]. It is clear that the oxygen plasma treatment wool sample led to enhance the absorbency intensity of functional groups, which indicated the formation of more functional groups on the plasma treated sample, may be due to the reaction of oxygen with generated radicals on the plasma-treated wool sample [7].…”

“…These methods used to impart polarity to the fiber surface and to increase water permeability, dye penetration and the rate of dyeing [6]. They could be replaced with physical methods such as low temperature plasma (LTP), which is an environmental friendly process that can modify only the surface of wool fibers [7,8]. Plasma is the fourth state of matter and a step towards creating solid surfaces with a new and improved properties that cannot be achieved by conventional processes [9].…”

Reactive-ion etching of nylon fabric meshes using oxygen plasma for creating surface nanostructures

“…Although the fibers possess excellent mechanical, chemical, and thermal properties, there are still some limitations on its uses and applications [1][2][3][4][5][6][7][8][9][10]. In general, to extend the use and applications of polymers, several treatments are employed and some of them uses atmospheric pressure plasma to improve the dye uptake of nylon 6 fibers with different absorbed moisture [1] and to enhance the antibacterial activity and natural dyeing properties of nylon 6 fabrics [6]; direct low-pressure and low-temperature plasma to enhance the adhesion of carbon nanotubes on nylon 6,6 fabrics [3], to improve the mechanical properties of nylon 6 plain woven fabrics [5], to correlate the crystallinity and plasma susceptibility of poly(ethylene terephthalate) (PET) and nylon 6,6 fibers [10], and to achieve superhydrophilic or superhydrophobic properties for lignocellulosic seagrass, PET, and poly(tetrafluoroethylene) (PTFE) materials [11][12][13][14]; gas discharges in improving the wettability, superhydrophobicity and antibacterial properties of PTFE [15][16][17][18]; laser to improve the dyeability of poly(amide) 6,6 knitted fabrics [19]; and microwave jet plasma for the functionalization of electrospun poly(amide) 6 nanofibers to improve the adhesion properties during the production of composites in tissue engineering [7].…”

Study of dyeing properties of wool fabrics treated with microwave

“…The application of physical modification technology is an important means of reducing pollution, which can reduce dyeing and finishing wastewater discharge, use of chemical agents and shorten the process (Ahmed & El-Shishtawy, 2010;Chen, Fan, & Wang, 2007;Gao, Cui, Huang, Yang, & Lin, 2014;Haji, Mousavi Shoushtari, & Mirafshar, 2014;Ke, Yu, Xu, Cui, & Shen, 2008;Kozicki & Sąsiadek, 2012;Rao, Hu, Li, Xiong, & Cao, 2013;Xu & Zhang, 2013;Zolriasatein, Yazdanshenas, Khajavi, & Rashidi, 2012). Microwave modification technology is a new research direction for low energy consumption and low equipment requirement for textile processing (Haggag, El-Sayed, & Allam, 2007;Kale & Bhat, 2011;Kalia & Sheoran, 2011;Ramadan, EI Sayed, & Almetwally, 2012;Sun, Lin, & Bai, 2005).…”