Investigation of Eco-friendly Dyeing of Para-aramid Using Supercritical CO2 


Vol. 23,  No. 8, pp. 2196-2205, Aug.  2022
10.1007/s12221-022-4716-9


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  Abstract

In order to solve the problems of dyeing difficulty and serious pollution of traditional water-based dyeing of paraaramid, supercritical CO2 fluid was employed as a dyeing solvent to dye para-aramid yarn (temperatures 80-120 , pressures 16-24 MPa, dyeing time 15-90 min, and dye concentration 1 %-7 % o.m.f.). The K/S values reached 2.07 and 1.91 at 120 , 24 MPa, 60 min, 5 % o.m.f., and a CO2 flow of 20 g/min with C. I. Disperse Red 54 and C. I. Disperse Blue 79, respectively. The results proved that para-aramid yarn could be dyed in supercritical CO2 fluid. Moreover, the thermal and mechanical properties of dyed para-aramid yarns in supercritical CO2 showed a slightly increasing trend. The washing, rubbing, and the light color fastness of the dyed samples were rated above 4-5, and the color fastness durability of the dyed para-aramid was also presented good.

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  Cite this article

[IEEE Style]

Y. Zhang, H. Zheng, L. Zheng, T. Cai, F. Zheng, "Investigation of Eco-friendly Dyeing of Para-aramid Using Supercritical CO2," Fibers and Polymers, vol. 23, no. 8, pp. 2196-2205, 2022. DOI: 10.1007/s12221-022-4716-9.

[ACM Style]

Yue Zhang, Huanda Zheng, Laijiu Zheng, Tao Cai, and Fuer Zheng. 2022. Investigation of Eco-friendly Dyeing of Para-aramid Using Supercritical CO2. Fibers and Polymers, 23, 8, (2022), 2196-2205. DOI: 10.1007/s12221-022-4716-9.

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pISSN : 1229 - 9197
eISSN : 1875 - 0052

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