Title :
Dyeing of PET yarn in supercritical CO2: Pilot plant experiments
Author :
Huang, Gang ; Xing, Yanjun ; Dai, Jinjin
Author_Institution :
Coll. of Chem., Chem. Eng. & Biotechnol., Donghua Univ., Shanghai, China
Abstract :
Dyeing of PET yarn in supercritical carbon dioxide can reduce water usage, prevent pollution and save energy. Effects of supercritical conditions on the uniformity of PET package were investigated with a pilot plant. It was found that the uniformity of PET package is improved as the CO2 flow rate increasing. The dyeing process with optimum flow reversal yield more uniform samples than those without, the most optimized reversal interval is 15 min. Both the uniformity and the percent exhaustion of PET package dyed with this pilot plant were shown good reproducibility. The wash and rub fastness properties of PET yarn dyed in the plant were good to very good.
Keywords :
carbon compounds; dyeing; water pollution; yarn; PET package; PET yarn; dyeing process; flow reversal yield; pilot plant; supercritical carbon dioxide; water pollution; water usage; Carbon dioxide; Fluids; Optical fiber dispersion; Optical fiber testing; Temperature measurement; Textiles; Yarn; Fastness; Pilot Plant; Repeatability; Supercritical Dyeing; Uniformity;
Conference_Titel :
Computer Distributed Control and Intelligent Environmental Monitoring (CDCIEM), 2011 International Conference on
Conference_Location :
Changsha
Print_ISBN :
978-1-61284-278-3
DOI :
10.1109/CDCIEM.2011.512
