Valorization of Orange Peel for Dye Synthesis and Its Application for Dyeing Cotton Fabric
No Thumbnail Available
Date
2019-06
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
Addis Ababa University
Abstract
A further usage of peels from orange as natura dyes is presented in this paper. Natural dye is
generally applied in an aqueous solution, and requires a mordant to improve the fastness of the
dye on the fiber. Because of its good affinity, brilliant colours, nontoxic, non-allergic nature on
textile materials, easy accessibility and less damaging effect on human health, it can be used in
food, pharmaceutical, and textile industries. The aim of this study is to valorize orange peels for
dye synthesis and to evaluate its yield. Orange peel is used as a raw material for the extraction of
natural dye using soxhlet extraction method. Design of experiment for RSM was used to analyze
and optimize the effect of extraction temperature (65°C, 72.5°C, and 80°C), extraction time
(1.5h, 3.25h and 5h) and orange peel to ethanol ratio (0.05g/mL, 0.075g/mL and 0.1g/mL) on
extraction of natural dye from orange peels. A maximum yield of natural dye of 40.109% was
achieved under selected optimal conditions with high value of combined desirability a threevariable,
three-level Box-Behnken design was used to develop a statistical model. From
experiment, the yield of natural dye was obtained as 40.106%. FTIR and UV-Vis
spectrophotometric studies were performed on the dye extract. The dyes produced were applied
on cotton fabric and Na2CO3 was used for fixing the color on the fabric. Colour dyeing and
testing were carried out using data color tool analysis (L*, a*, b*) and fastness properties of
dyed cotton fabric were investigated according to AATCC-61 and crocking ISO 105×12.
Description
Keywords
Cotton fabric, FTIR, Natural dye, Orange peel, Soxhlet extraction method