Application of Colour Changing Fulgimide on Wool Fibre

Abstract

2-Indolylfulgimide was synthesized to examine the practical dyeing feasibilities and behaviors. A one-pot efficient process was discovered with good yield (52%). The color changing properties of fulgimide in solvents and on wool fibers were investigated. With UV irradiation, fulgimide showed color variation from light yellow to light red. The same color changing behavior appeared in the wool fiber which was dyed with 2-indolylfulgimide through a normal acid dye dyeing process.