Izvorni znanstveni članak
Changes in sorption properties due to multiple washing processes
Ivana Čorak
; Sveučilište u Zagrebu Tekstilno-tehnološki fakultet, Zagreb, Hrvatska
Anita Tarbuk
; Sveučilište u Zagrebu Tekstilno-tehnološki fakultet, Zagreb, Hrvatska
*
Josip Marković
; DM tekstil - krojački obrt, Ozalj, Hrvatska
Katia Grgić
; Sveučilište u Zagrebu Tekstilno-tehnološki fakultet, Zagreb, Hrvatska
* Dopisni autor.
Sažetak
The change in the sorption properties of white cotton fabric used for bed linen in the hospital environment was investigated. For this purpose, the commercially available cotton fabric was subjected to multiple washing cycles in a Wascator FOM71 CLS industrial washing machine (Electrolux) in accordance with HRN EN ISO 15797:2018. The procedure "Washing of white and delicate coloured material - Peroxyacetic bleach" was carried out at 75 °C with a standard detergent with optical bleach (WFK 88060-A1) with the addition of Proxitane 523, peroxyacetic acid - a mixture of 5 % acetic acid and 20 % H2O2, as a bleaching agent successively until the 15th washing cycle. The contact angle was determined on the fabric samples before and after the 1st, 5th, 10th and 15th washing cycle using a KRÜSS DSA30S goniometer. The sorption properties were investigated using standardized methods: by Absorbency of Textiles (so-called Drop test) according to AATCC TM 79-2018; by Vertical and Horizontal Wicking of Textiles according to AATCC TM 197-2018 and AATCC TM 198-2020, and the Moisture Management Capability according to AATCC TM 195-2017 was tested using the Moisture Management Tester (MMT) device, SDL Atlas. The changes in sorption properties were analysed together with the changes in mechanical properties. It has been shown that with multiple washing cycles the finishing agent is removed, which allows greater swelling, but also depletion (damage) of the fabric, so that for these two reasons the cotton fabric had a higher absorbency. The results obtained indicate the possibility of using the selected fabric in a hospital environment.
Ključne riječi
washing; sorption properties; contact angle; moisture management capability
Hrčak ID:
322836
URI
Datum izdavanja:
6.4.2022.
Posjeta: 40 *