Production of Sustainable Textiles Using Natural Dye and Eggshell Powder on Recycled Polyester Fabric via Waterless Supercritical CO2 Dyeing
İdil Yiğit
TL;DR
This study explores a sustainable method for dyeing recycled polyester fabric using natural dye and eggshell powder in a waterless CO2 process, resulting in durable and eco-friendly textiles.
Contribution
The novel approach combines natural dye, recycled polyester, and eggshell powder in a waterless supercritical CO2 system for sustainable textile production.
Findings
Eggshell powder improved tensile strength and color stability after UV aging.
ESP-treated samples showed higher thermal stability and residual mass in TGA tests.
The treatment remained durable after repeated washing, confirming wash fastness.
Abstract
The growing environmental impact of conventional textile dyeing processes, particularly their high water consumption, chemical usage, and wastewater generation, has intensified the need for alternatives. For this reason, the textile industry faces increasing pressure to adopt sustainable production routes that minimize environmental loads. The utilization of recycled polyester fabrics, natural dyes, and waste-derived bio-resources within waterless dyeing systems represents a holistic approach toward environmentally responsible textile manufacturing. This study focuses on the production of sustainable textiles by dyeing recycled polyester fabrics with natural madder dye and eggshell powder in a waterless supercritical CO2 medium. The samples were characterized via SEM, TGA, wash fastness tests, and tensile strength measurements. SEM images clearly revealed the presence of eggshell powder…
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Taxonomy
TopicsDyeing and Modifying Textile Fibers · Microbial Metabolism and Applications · Enzyme-mediated dye degradation