Extraction of Dye from Waste Blue Gel Pen Ink Using the Voltine Method and Its Application in Fabric Dyeing: An Eco-friendly Approach

The improper disposal of gel pens, particularly due to the presence of synthetic dyes in their ink, poses an environmental challenge.This study focuses on the extraction of blue dye from waste blue gel pen ink using the Voltine Method, which leverages gas-induced evaporation for dye isolation.The extracted dye was then applied to cotton fabric to assess its effectiveness in textile dyeing.The results demonstrated that the extracted dye exhibits good color uniformity and colorfastness when applied to cotton fabric.This paper also explores the sustainability of this process, providing an eco-friendly solution for repurposing ink waste.The findings suggest the potential for broader industrial applications in the textile industry.