Dyeing Procedures of Polyester Fiber in Supercritical Carbon Dioxide Using a Special Dyeing Frame

作者：Zheng, Laijiu^*; Zheng, Huanda; Du, Bing; Wei, Ju; Gao, Shihui; Zhang, Juan

来源：Journal of Engineered Fibers and Fabrics, 2015, 10(4): 37-46.

DOI：10.1177/155892501501000414

• Loose fiber
• Dyeing
• Polyester
• Dyeing frame
• Supercritical CO2

Supercritical CO2 fluid dyeing, a new type of anhydrous dyeing technology, has the advantage of high uptake rate, short dyeing process, recycling of dyes and CO2, and zero discharge. This study investigated a dyeing technique of loose fibers using supercritical CO2 as solvent to replace water. Based on the existing characteristics of the self-developed supercritical CO2 dyeing equipment, a special dyeing frame of loose fibers was designed. Using the dyeing frame and inner and outer dyeing processes, polyester fibers were dyed with disperse red 153(#) maternal dyes at temperatures of 80-140 degrees C, pressures of 17-29MPa and time of 20-80min, respectively. The experimental results revealed that the dyeing performance of fibers was good on the dyeing frame, as well as with a favorably increased temperature, pressure and time. Dyeing temperature had a strong influence on the color yield. The dyeing results were compared with those of polyester fibers dyed with disperse red 153(#) dyes. With the special dyeing frame of loose fibers, color fastness to washing and artificial light was generally similar to conventional aqueous medium methods.

• 出版日期2015
• 单位大连工业大学