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Zhaotao Gao,Dehao Qu,Yanpeng Qu,Weiqiang Wang,Shurui Cui,Hongxiao Guo,Fei Li,Fayu Sun 한국섬유공학회 2022 Fibers and polymers Vol.23 No.3
In this work, a novel jig dyeing apparatus for dyeing polyester with supercritical carbon dioxide was designed andsuccessfully constructed. The built-in dye boxes set inside and guide roller to increase the exposure area of single layer fabricwere the two most attractive features of the equipment. Polyester was dyed at a temperature of 130 oC, the pressure of27 MPa. The colorfastness was analyzed as a function of polyester running speed. Under the condition that the polyester'srunning speed was 4 m/s, the fastness to staining, the fastness to fading, and the fastness to rubbing were rated at a grade of 3-4, 4-5, and 4, respectively. Dyeing properties complied with the expected requirements.