Investigation of Sumac (Rhus Glabra L.) Leaves as a Natural Mordant on the Colorfastness of Laundering for Weld-dyed Cotton Batiste.

摘要

Three mordant treatments: 1) sumac leaves at 50%, 100%, 150%, and 200% owf, 2) combination of sumac leaves at 50%, 100%, 150%, and 200% owf and Aluminum Acetate at 5% owf, and 3) aluminum acetate at 5% owf on cotton batiste samples were investigated. Color coordinates and Gray Scale ratings were taken with a RM200QC Imagining Spectrocolorimeter. The resulting data was analyzed using descriptive statistics and ANOVA within and across treatments. Results indicate that increasing the amount of sumac does not change color coordinates and overall color difference significantly. Sumac in combination with alum increased grey scale rating by one point comparing to other two treatments. 200% sumac and alum combination showed better rating both in total color difference value and grey scale rating. These findings contribute to the understanding of potential of sumac as a natural mordant and may aid further investigations of using sumac with other dyes.