20.500.12556/RUL-164742 The stability of the chitosan coating on polyester fabric in the washing process Stabilnost hitozanskega nanosa na poliestrski tkanini pri pranju The sensitivity of chitosan to environmental conditions and processing conditions can stress its structure and cause degradation of this polymer on various application carriers. The stability of chitosan in a designed textile structure of standard polyester fabric with chitosan was analysed in a multiple washing process with a standard detergent by studying the properties before and after 10 washing cycles. The chitosan was coated on standard and alkali treated polyester fabrics. Washing was performed with an ECE A reference detergent at 60 °C according to the Standard protocol HRN EN ISO 6330 in 10 cycles. The washing stability of chitosan onto polyester fabrics was monitored by a staining test, zeta potential, breaking force, breaking elongation, pilling propensity, touch, whiteness, moisture transport, antimicrobial activity and morphological features. The staining test confirmed the wash stability of chitosan coated on alkali hydrolised polyester fabrics, while the chitosan coated on standard polyester fabric disappeared. Zeta potential proved to be the significant parameter for determining chitosan stability. The tensile properties of fabric samples were harmonised with other characterisation parameters. Coating of polyester fabric with chitosan increased the elasticity of all samples. The antimicrobial activity of polyester fabrics coated with chitosan against Staphylococcus aureus was reduced by 20% after 10 washing cycles. All the characterisation parameters proved that polyester fabric as a chitosan carrier should be surface modified for designing a stable bioactive textile structure of chitosan and polyester. Hitozanski nanosi na različnih nosilcih so izpostavljeni tako okoljskim kot tudi procesnim pogojem. Le-ti vplivajo na strukturo hitozana in lahko povzročijo njegovo degradacijo. Proučevali smo stabilnost hitozanskega nanosa na poliestrski tkanini pri večkratnem pranju s standardnim detergentom, pri čemer smo analizirali lastnosti obdelane tkanine pred pranjem in po desetih ciklih. Hitozan smo nanesli na standardne poliestrske tkanine in poliestrske tkanine po alkalni obdelavi. Prali smo z referenčnim detergentom ECE A pri 60 °C po standardnem protokolu HRN EN ISO 6330 v desetih ciklih. Stabilnost hitozanskega nanosa na poliestrskih tkaninah smo spremljali s testom obarvanja, zeta potencialom, določitvijo pretržne sile in pretržnega raztezka, nagnjenostjo k luščenju, dotikom, belino, transportom vlage, protimikrobno aktivnostjo in morfološkimi značilnostmi. Preskus obarvanja je potrdil stabilnost hitozanskega nanosa na poliestrski tkanini, predhodno obdelani z alkalno hidrolizo po pranju, medtem ko hitozanskega nanosa na standardni poliestrski tkanini po pranju nismo zaznali. Zeta potencial se je izkazal kot pomemben parameter za določanje stabilnosti hitozanskega nanosa. Natezne lastnosti vzorcev tkanine so bile usklajene z drugimi karakterizacijskimi parametri. Vsem poliestrskim tkaninam s hitozanskim nanosom se je povečala elastičnost. Antimikrobna aktivnost poliestrskih tkanin s hitozanskim nanosom proti Staphylococcus aureus se je po desetih ciklih pranja zmanjšala za 20 %. Vsi karakterizacijski parametri so pokazali, da je treba poliestrski nosilec predhodno površinsko modificirati, da je dosežena stabilna bioaktivna tekstilna struktura hitozana in poliestra. polyester fabric chitosan washing stability poliestrska tkanina hitozan pranje stabilnost true false true Angleški jezik Slovenski jezik Članek v reviji 2024-11-08 11:08:41 2024-11-08 11:08:43 2026-01-21 10:48:15 0000-00-00 00:00:00 2023 0 0 Str. 85–104 no. 2 Vol. 66 2023 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 677.017:544.7 0351-3386 10.14502/tekstilec.66.2023010 156273411 10.14502Tekstilec2023.66.2023010.pdf 10.14502Tekstilec2023.66.2023010.pdf 1 CC52118E5E66D3E0DDCA7BA14E52BB9A 2ec54f4e28cbbf412715a3176197d85c007dda43f06edecd88096380053d6946 28fbad53-dfdc-11f0-9328-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=224481 https://journals.uni-lj.si/tekstilec/article/view/12460 0 49768cf9-9dcc-11ef-b232-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=195381 Naravoslovnotehniška fakulteta Tekstilec 0 0 0