Abstract
This paper explores the use of plasma treatment as a pretreatment process to assist the application of antimicrobial process on cotton fabric with good functional effect. In this paper, antimicrobial finishing agent, Microfresh Liquid Formulation 9200-200 (MF), and a binder (polyurethane dispersion, Microban Liquid Formulation R10800-0, MB) will be used for treating the cotton fabric for improving the antimicrobial property and pre-treatment of cotton fabric by plasma under atmospheric pressure will be employed to improve loading of chemical agents. The chemical analysis of the treated cotton fabric will be conducted by Fourier transform Infrared Spectroscopy.
Highlights
Cotton fabric is highly popular due to their excellent properties such as regeneration, bio-degradation, softness, affinity to skin and sweat-absorbing property [1, 2]
In the present study, the control fabric slightly inhibited the growth of S. aureus because of the bleach residues left on fabric surface, while the anti-microbial activity of the Microfresh Liquid Formulation 9200-200 (MF)-MB-treated specimen was enhanced as reflected by a slightly larger zone of inhibition
The hydrophilic nature of carbonyl groups present in the oxygen plasma pre-treated specimens increased the anti-microbial activity when treating it with MF-MB
Summary
Cotton fabric is highly popular due to their excellent properties such as regeneration, bio-degradation, softness, affinity to skin and sweat-absorbing property [1, 2]. Bacteria have different membrane structures which are classified as Gram negative or Gram positive [9]. Gram negative bacteria exhibit only a thin peptidoglycan layer of around 2–3 nm between the cytoplasmic membrane and the outer membrane, while Gram positive bacteria lack the outer membrane but have a peptidoglycan layer of about 30 nm thick [9]. The anti-microbial finishing can inhibit the growth or kill the invading bacteria by several ways including (i) cell wall damage and/or inhibition of cell wall synthesis, (ii) changing the chemical or physical state of proteins and nucleic acid inside the cell, (iii) inhibition of enzymes inside the cell and retarding the normal biological activities and metabolism of bacteria, and (iv) inhibition of synthesis of protein or nucleic acids thereby interrupting the ability of bacteria to grow and reproduce [10]. Antimicrobial finishing agent will be used for treating the cotton fabric for improving the antimicrobial property and pre-treatment of cotton fabric by plasma under atmospheric pressure will be employed to improve loading of finishing agent
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