Cotton Yarn Dyeing with Azadirachta indica A. Leaves and Barks cooperated with White Clay Fermentation

Abstract

The objective of this research was to study the effect of dyeing cotton yarn from Neem Leaves and Bark cooperated with white clay fermentation. A study of dyeing of cotton yarn from natural dyes extracted from Azadirachta indica A. leaves and bark and cooperated with white clay fermentation. The research process consisted of the following steps: 1) Studying and collecting samples of Siamese Neem leaves and bark 2) Extracting dyes 3) Dyeing cotton yarn with dyes extracted from Siamese Neem leaves and bark. In the dyeing, various types of mordant were used, including Copper sulfate, Ferrous sulfate, Zinc sulfate, and Manganese sulfate at 5%, 10%, and 15% in concentration, which were dyed in 3 methods, namely, pre-mordant before Dyeing, fixing mordant ready to dye and mordant dyeing after dyeing. Moreover, studied the dyeing of cotton yarns using different temperatures, 70-80 ° C, 80-90 ° C, and 90-100 ° C, with different time intervals of 30 minutes, 45 minutes, 60 minutes, and 75 minutes. 4) The cotton yarn that had been dyed by different methods was fermented with white clay for 24 hours, 48 hours, and 72 hours. and perform in-color measurements with the CIE L* a*b* system. Then dyed cotton yarn with the extracted leaf dye and the bark of Siamese Neem, using various types of mordants, it was found that dyeing cotton yarn with natural dyes from leaves and bark Neem by using different types of mordant agents, including copper sulfate, Ferrous Sulphate, Zinc Sulphate, and Manganese Sulphate, the different shades had received. The three different dyeing methods were used: pre-mordant before Dye, fixing mordant ready to dye, and dyeing mordant after dyeing, found that the way to give the most intensity in color was dyeing method with fixing mordant ready to dye and when the cotton yarn has been dyed bring to ferment the white clay for 24 hours, 48 hours and 72 hours, it was found that the color of the fabric that has been fermented with white clay will be brighter and the color is consistent.