SOME APPLICATION OF NATURAL DYE EXTRACTED FROM EUCALYPTUS GLOBULUS LABILL (EUCALYPTUS) BARK ON COTTON
Abstract
- The raw sample barks (Eucalyptus) were collected from Aunglan Township, Magway Region. Natural dyes were extracted from the bark of Eucalyptus by water. The prepared natural dye was characterized by FT IR. The phytochemical tests of extracted natural dye were carried out. The maximum wavelength (λmax) of Eucalyptus dyes extracted with water at 483 nm was determined by UV-spectrophotometer. The percentage of bio-mordants was determined. And then, the effect of dyeing time was studied by using colour densitometer at three mordanting methods. The extracted natural dyes were also used on cotton cloth by three mordanting methods. Extracted dye though Specifically identified, from Eucalyptus bark was as adsorbate. Cotton cloth was used as adsorbent. The colour intensities of these dyed cotton cloth was determined by Reflection Transmission Colour Densitometer. Depending on the type of mordant, such as onion peel, jengkol peel and tea waste (bio-mordants), colour fastness of the dyeing cotton cloth were studied. And then, cotton can also be dyed by using post mordanting methods. In addition, the antimicrobial activities of Eucalyptus dye were investigated by Agar Disc Diffusion method on six tested organisms.
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Year
- 2021
Author
-
Zin Mar Oo
Subject
- Chemistry
Publisher
- Myanmar Academy of Arts and Science (MAAS)