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Optimized Dyeing Process for Enhancing the Functionalities of Spent Coffee Dyed Wool Fabrics Using a Facile
1College of Human Ecology, Department of Clothing and Textiles, Hanyang University, Seoul 04763, South Korea. jbae2@hanyang.ac.kr.
Polymers
|April 10, 2019
Summary
Spent coffee grounds can be used to dye wool fabrics, imparting color and enhancing fabric properties. This eco-friendly dyeing method provides antibacterial and antioxidant benefits to textiles.
Area of Science:
- Materials Science
- Textile Chemistry
- Sustainable Chemistry
Background:
- Spent coffee grounds (SCG) are a major waste product of coffee brewing.
- SCG contain bioactive compounds with potential applications.
- Valorizing SCG can reduce waste and create value-added products.
Purpose of the Study:
- To investigate the use of SCG extract for dyeing wool fabrics.
- To functionalize wool fabrics with antibacterial and antioxidant properties using SCG.
- To optimize dyeing conditions for colorfastness and fabric integrity.
Main Methods:
- SCG were extracted using a manual espresso machine.
- Wool fabrics were dyed with SCG extract using an infrared dyeing machine.
- Fabrics were mordanted with tannic acid, and dyeing parameters (time, temperature) were varied.
Main Results:
- SCG extract successfully dyed wool fabrics with significant coloration.
- The dyed fabrics exhibited good colorfastness to washing and light exposure.
- Wool fabrics demonstrated enhanced antibacterial and antioxidant properties after dyeing and mordanting.
Conclusions:
- SCG are a viable source for eco-friendly textile dyeing.
- The SCG dyeing process, combined with tannic acid mordanting, imparts valuable functional properties to wool.
- This method offers a sustainable approach to textile coloration and functionalization.
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