PLASMA AND CHITOSAN TREATMENTS FOR IMPROVEMENT OF NATURAL DYEING AND ANTIBACTERIAL PROPERTIES OF COTTON AND WOOL

摘要

In this study, the effect of low pressure oxygen plasma treatment and subsequent chitosan treatment on the dyeability of cotton and wool fabrics is investigated. Raw, plasma treated and chitosan coated wool and cotton samples were dyed with natural dye extracted from dried cotton pods. The effect of each modification on the color strength of the dyed samples was examined and the order of the K/S for both fibers was as follows: chitosan treated > plasma treated > raw. The samples were also tested for antibacterial properties before dyeing. The samples coated with chitosan after plasma treatment showed excellent antibacterial activity.