Quality of Mud Fermented Natural Dyeing of Water Hyacinth Strands

Abstract

        The objectives of this research were 1) to test the mud fermented natural dyeing process of water hyacinth strands; 2) to examine the quality of color adhesion of water hyacinth strands after the fermented natural dyeing. The research method consists of 3 steps. Step 1: Preparing water hyacinth strands as raw material by taking 2 forms of water hyacinth strands including round strands and spiral strands from the same source of raw materials to be used as test sample materials. Step 2: Proceeding fermented natural dyeing of water hyacinth strands using 4 kinds of natural materials: mud, dried eucalyptus barks, fresh mango leaves, and fresh avocado leaves; applying cold dyeing process or fermented dyeing process for a period of 7 days at room temperature; randomly collecting the samples every day, cleaning and drying them in a hot air oven at 40°C for 8 hours. Step 3: Measuring colors of the samples with a Colormeter (CIE lab) and recording their colors each day along with the use of systematic photographing techniques to compare color differences after dyeing. Research results reported the quality of fermented natural dyeing of water hyacinth strands with the 4 natural materials using cold dyeing or fermentation dyeing for a period of 7 days that increased fermentation duration resulted in different colors. Fermented in mud, the round strands showed the values of (L*) in a range of 54.58 - 57.10, whereas the spiral strands showed the values of (L*) in a range of 48.10 - 42.60, with (+a*) indicating red,
and (+b*) indicating yellow. Fermented with dye from dried eucalyptus barks, the round strands showed the values of (L*) in a range of 64.15 - 58.10, whereas the spiral strands showed the values of (L*) in a range of 59.51 -. 48.40, with (+a*) indicating red and (+b*) indicating yellow. Fermented with dye of fresh mango leaves, the round strands showed the values of (L*) in a range of 64.82 - 49.28, whereas the spiral strands showed the values of (L*) in a range of 44.40 - 38.91, with (+a*) indicating red and (+b*) indicating yellow. Fermented with dye from fresh avocado leaves, the round strands showed the values of (L*) in a range of 64.28 - 64.20, whereas the spiral threads showed the value of (L*) in a range of 55.23 - 52.03, with (+a*) indicating red and (+b*) indicating yellow.