The article “Development of Antibacterial Cotton-Black Viscose and Cotton-Polyester Blended-Knit Fabric Using Ag Doped ZnO Nanocomposite”, published in Advanced Materials Interfaces by the research group of Professor Tanu Arefin, explores how plasma treatment enhances the development of antibacterial knit fabrics using silver-doped zinc oxide nanocomposites. The research focuses on cotton–polyester and cotton–black viscose blends, aiming to improve hygiene, comfort and durability without compromising the natural softness of the textiles.
The Role of Henniker's HPT-200 Plasma Cleaner
Plasma treatment is presented as a practical and effective method for surface activation. By exposing fabrics to oxygen plasma using the HPT-200 from Henniker Plasma, the process introduces reactive functional groups and increases surface roughness. This significantly raises surface energy, which improves nanoparticle adhesion during subsequent dip-coating. Unlike conventional chemical binders, plasma activation maintains the breathability and elasticity of knit fabrics, making it suitable for applications in sportswear, healthcare and hygiene products.
The Results
The study demonstrates that plasma-assisted coating results in uniform nanoscale deposition of Ag–ZnO particles, confirmed through FESEM and EDX analysis. This uniformity contributes to strong antibacterial performance, with inhibition zones of up to 17 mm against E. coli and 15 mm against S. aureus. Importantly, the fabrics retained substantial antibacterial activity after ten domestic washing cycles, highlighting the durability of the treatment. Comfort-related properties such as moisture management also improved, as shown by rapid water spreading in treated samples.
Commercial scalability is addressed through the feasibility of roll-to-roll plasma processing. The article notes that scale-up of this technology requires consistent treatment across industrial fabric widths, supporting continuous production. Plasma technology reduces water and chemical use compared with traditional finishing, aligning with sustainability goals. While optimisation of power density and treatment time is necessary for large-scale implementation, the method offers competitive cost performance due to lower energy and resource consumption.
[1] Figure 8 Water drop diffusion and surface wetting pattern observed on CBV and CVC fabrics before and after treatment; (a) CBV (untreated), (b) CVC (untreated), (c) CBV-Ag-ZnO, (d) CVC-Ag-ZnO.
Conclusion
In summary, plasma treatment using Henniker Plasma equipment provides a reliable, environmentally responsible and commercially viable approach to activating textile surfaces for advanced functional coatings. It enables strong nanoparticle adhesion without chemical binders, preserves fabric comfort and demonstrates the durability and performance required for industrial applications.
Keywords
- Plasma assisted dip coating
- HPT-200
- Oxygen Plasma
References
Readers are referred to the original print, available through the provided DOI link, or click the link below for further details on the Henniker Plasma HPT-200.
[1] Figure 8 Water drop diffusion and surface wetting pattern observed on CBV and CVC fabrics before and after treatment; (a) CBV (untreated), (b) CVC (untreated), (c) CBV-Ag-ZnO, (d) CVC-Ag-ZnO.
FAQ's
Q: What role does plasma play in antibacterial textile coating?
A: Plasma increases surface energy and adds functional groups, allowing nanoparticles to bond more effectively during dip-coating.
Q: Why use the HPT-200 for textile activation?
A: The HPT-200 provides consistent oxygen plasma activation without affecting fabric softness or breathability.
Q: Do plasma-coated textiles maintain durability?
A: Yes. The study reports retained antibacterial activity after ten washing cycles.
