Studies on the Effect of Reduction Cleaning on Disperse Dyed Polyester Fabric

Abstract

Polyester is a commonly used synthetic fiber in the textile industry due to its excellent properties such as high strength, durability, and low moisture absorption. However, the quality of dyed polyester can be compromised due to various factors, including residual impurities and unreacted dyes. Reduction cleaning is a common method used to remove these impurities and improve the quality of dyed polyester. This research investigates the effect of reduction cleaning on the color fastness and rubbing fastness of dyed polyester. The study involved the reduction cleaning of dyed polyester fabric using various reducing agents such as sodium hydrosulfite and sodium borohydride. The effectiveness of reduction cleaning was evaluated based on the change in color fastness and rubbing fastness of the fabric. The results indicate that reduction cleaning can significantly improve the color fastness and rubbing fastness of dyed polyester fabric. The color fastness test results show that the reduction cleaning process improved the colorfastness to washing, light, and perspiration. The rubbing fastness test results demonstrate that reduction cleaning significantly improved the resistance of the dyed polyester fabric to rubbing and friction. However, it is worth noting that there was a slight reduction in the tensile strength of the fabric after reduction cleaning. In conclusion, reduction cleaning is an effective method for improving the color fastness and rubbing fastness of dyed polyester fabric. The findings of this study can be useful for textile industries and researchers in improving the quality of dyed polyester fabrics. Further research is recommended to optimize the reduction cleaning process and minimize the negative impact on tensile strength.