Preliminary study on the production of antimicrobial natural dye fabric by simultaneous dyeing and TiO2 coating process

• Main Authors: Amalia, Rizka, Paramita, Vita, Kusumayanti, Heny, Pujiastuti, Alfyan, Fathurrahman, Hanif M.
• Format: Conference Proceeding
• Language: English
• Subjects: Antiinfectives and antibacterials; Antimicrobial agents; Clumps; Coating; Color; Damage; Degree of crystallinity; Dyeing; Dyes; Fabrics; Microorganisms; Physical properties; Titanium dioxide
• ISSN: 0094-243X; 1551-7616
• DOI: 10.1063/5.0125297

Using natural dyes can be an alternative solution for substituting synthetic dyes that are not environmentally friendly. Besides its many advantages, there is also a disadvantage to using natural dye fabric, e.g. the appearance of microorganisms. This study aims to evaluate the results of the TiO2 coating process on natural dye fabrics based on its antimicrobial activity and colour strength. Characterization of its physical properties was also conducted using SEM, EDX, and XRD. The results show that fabric coating with TiO2 has a positive reduction in Staphylococcus aureus bacteria (96.562-99.999% at 24 hours) as the increasing concentration of TiO2. The usage of TiO2 as an antimicrobial agent in natural colour fabrics affect not significantly a colour change (ΔE=0.49–3.35, invisible to minor differences). From SEM analysis, there are no damages to the surface of the antimicrobial fibre; only small clumps are attached to the fabric due to the attachment of dye, fixative and TiO2. The EDX shows that the TiO2 fabric determines the energy position of 4.508 keV, which shows the existence of titanium with the most significant weight of 1.18%. The results of the XRD analysis showed that the degree of crystallinity of TiO2 in the fabric is low. Implementation of antimicrobial fabrics could reduce the damage to the materials and protect human’s health from the adverse effects of microbes. Therefore a healthy environment can be created.