V.35,no.4,Dec 2023 https://doi.org/10.5764/TCF. Journal Textile Coloration and Finishing Year / Vol., Issue, Month 2020 / V.32,no.4,Dec Title Washing Fastness of PET Fibers according to Supercritical CO2 and Aqueous Dyeing Methods Authors Jiyeon Oh, Changpyo Park, Sam Soo Kim and Jaewoong Lee* Institution/Affiliations Yeungnam University Pages/Total page pp.208 ~ 216 / 9 Language Abstract In this study, C.I. Disperse Red 60 (DR60), C.I. Disperse Yellow 54 (DY54) dyes were used to investigate the washing fastness characteristics of PET fibers according to supercritical CO2 and aqueous dyeing process. The changes in K/S values and L* values before and after washing of dyed PET fibers were observed according to the KS K ISO 105 washing fastness measurement method. In addition, it was confirmed by changing the ΔE* and ΔL* values of control PET fibers. Overall, it was confirmed that both the supercritical CO2 and aqueous dyeing process had excellent washing fastness ratings of 4-5 for DR60 and DY54 dyes. Comparatively, the K/S and L* values for before and after washing of PET fibers with supercritical CO2 dyeing process was higher than that of the aqueous dyeing process and the ΔE* and ΔL* values of the control PET fibers were low. From the results, we observed that the supercritical CO2 dyeing process of PET fibers has better washing fastness characteristics than the aqueous dyeing process. Keywords supercritical CO2 dyeing, aqueous dyeing, washing fastness, PET, disperse dyes Download   Reference http://koreascience.or.kr/journal/OSGGBT.page?&lang=ko