Investigation of Dyeing Performances of Woven Fabrics Having Recycled Cotton Fibers by Reactive with Different Functional Groups

Sustainability is becoming increasingly important in the textile industry. Recycled cotton fiber contributes to the conservation of natural resources and reduces the carbon footprint. However, the physical and chemical structure of recycled cotton fibers can directly affect the dyeing performance. In this study, the dyeing behavior of fabrics based 55% Polyester 45% Cotton, 55% Polyester 45% Recycled Cotton and 38% Polyester 62% Recycled Cotton with reactive dyes of different functional groups was compared. The results showed that fabrics based recycled cotton showed the best color performance with bifunctional dyes. As the recycle rate increased, a decrease in the mechanical strength of the fabrics was observed, but significant gains were achieved in terms of environmental sustainability. These findings provide valuable data for increasing the use of recycled cotton.