Improved Dyeing of Meta-aramid Based on Particle Flow Dyeing Mechanism Using Hot-pressing Dyeing Method 


Vol. 21,  No. 12, pp. 2842-2847, Dec.  2020
10.1007/s12221-020-9976-7


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  Abstract

In this study, a combined dyeing method by integrating the advantages of both carrier dyeing and hot-pressing dyeing was utilized for the dyeing of meta-aramid. A rapid dyeing with increased mechanical properties of the fibers was achieved for the meta-aramid fiber. A so-called particle flow mechanism involving both N,N-dimethylacetamide (DMAc) and dye molecules was proposed to explain the accelerating effect of this unique dyeing method. The mechanical properties and thermodynamic stability of the fiber after hot-pressing were both increased. XRD results showed increased corresponding fiber crystallinity. TEM showed that the disperse dyes were well dispersed in DMAc. Cross-sectional optical photographs of dyed fibers revealed that the dyes were successfully carried into the interior of the fiber under the synergic effect of temperature and pressure. Combined with hot-pressing dyeing, the dyeing cycle for the meta-aramid could be greatly shortened and the amounts of dyes and carriers could be significantly reduced.

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  Cite this article

[IEEE Style]

X. Chen, D. Sheng, H. Xia, W. Xu, B. Deng, G. Cao, "Improved Dyeing of Meta-aramid Based on Particle Flow Dyeing Mechanism Using Hot-pressing Dyeing Method," Fibers and Polymers, vol. 21, no. 12, pp. 2842-2847, 2020. DOI: 10.1007/s12221-020-9976-7.

[ACM Style]

Xin Chen, Dan Sheng, Honghui Xia, Weilin Xu, Bo Deng, and Genyang Cao. 2020. Improved Dyeing of Meta-aramid Based on Particle Flow Dyeing Mechanism Using Hot-pressing Dyeing Method. Fibers and Polymers, 21, 12, (2020), 2842-2847. DOI: 10.1007/s12221-020-9976-7.

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