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Single-step disperse dyeing and antimicrobial functionalization of polyester fabric with chitosan and derivative in supercritical carbon dioxide
University of Borås, Faculty of Textiles, Engineering and Business.ORCID iD: 0000-0002-5301-740x
Department of Applied Science and Technology, Politecnico di Torino.
College of Textile and Clothing Engineering, Soochow University.
College of Textile and Clothing Engineering, Soochow University.
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2019 (English)In: Journal of Supercritical Fluids, ISSN 0896-8446, E-ISSN 1872-8162, Vol. 147, p. 231-240Article in journal (Refereed) Published
Abstract [en]

In this study, a novel green approach was adopted to develop antimicrobial polyester fabric using sustainable biopolymers (chitosan/derivative) as eco-friendly antimicrobial agents via the resource efficient supercritical CO2 (scCO2) dyeing route in a single step. Polyester fabric was dyed with a small amount of dye (0.4% owf) in the presence of chitosan/derivative (3% owf) in scCO2 at 120 °C, 25 MPa for 1 h. The success of chitosan/derivative impregnation was confirmed by Fourier Transform Infrared (FTIR), Zeta Potential (ζ), Scanning Electron Microscopy (SEM), and Water Contact Angle (WCA) measurements. According to the result, excellent color strength and fastness properties were obtained and the treated samples also reduced 75 − 93% of Escherichia coli (ATCC 25922) bacteria within one hour. This suggests that the dye and chitosan/derivative had no adverse effect on each other, proving compatibility. This new approach would help to reduce the cost of production and environmental pollution associated with the conventional textile finishing processes.

Place, publisher, year, edition, pages
2019. Vol. 147, p. 231-240
Keywords [en]
Antimicrobial agents, Biopolymers, Carbon dioxide, Chitosan, Color fastness, Contact angle, Dyeing, Escherichia coli, Fourier transform infrared spectroscopy, Scanning electron microscopy; Textile finishing, Antimicrobial functionalization; Cost of productions; Environmental pollutions; Fastness properties; Fourier transform infrared; Supercritical carbon dioxides; Supercritical CO2 (scCO2); Water contact angle (WCA), Supercritical fluid extraction
National Category
Textile, Rubber and Polymeric Materials
Identifiers
URN: urn:nbn:se:hb:diva-15882DOI: 10.1016/j.supflu.2018.11.002ISI: 000462690700026Scopus ID: 2-s2.0-85056637783OAI: oai:DiVA.org:hb-15882DiVA, id: diva2:1297052
Available from: 2019-03-19 Created: 2019-03-19 Last updated: 2019-04-11Bibliographically approved

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Tadesse Abate, MollaFerreira, JorgeNierstrasz, Vincent

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