Surface Modification of Non-Ionic Polyester Fabric into an Anionic Platform for Low Temperature Cationic Basic Dyeing with Improved Colorfastness Properties 


Vol. 24,  No. 4, pp. 1345-1358, Apr.  2023
10.1007/s12221-023-00146-3


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  Abstract

This research work involves surface anionization of non-ionic polyester (PET- polyethylene terephthalate) fabric through a novel and facile modifi cation technique to facilitate cationic dyeing, particularly basic dyeing under normal atmospheric conditions, instead of traditional sophisticated non-ionic disperse dyeing. Initially, the modifi cation of PET with diff erently prepared modifi ers was performed at 50 째C which introduced an anionic carboxylate group (COO- ) on its surface to promote eff ective bond formation with cationic basic dyes. The modifi cation process did not alter the inherent mechanical properties, i.e., strength and elongation of the PET fabric. Subsequently, the basic dyeing of the sample was carried out at a lower temperature (5060 째C) for 60 min. The dyeing of the modifi ed PET fabric with modifi er 1 at 60 째C yielded the best output for the basic blue 2GL dye in terms of color properties and shade quality. For modifi er 2, the color output after dyeing at 50 째C was off shade and only a reddish tone appeared, but the color strength ( K/S ) and the evenness of the shade were satisfactory. Both modifi ers signifi cantly improved the color fastness properties of the dyed fabric in the range of very good (4) to excellent (4/5) fastness rating, while the unmodifi ed fabric had a comparatively lower fastness grade (3).

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  Cite this article

[IEEE Style]

N. Nahar, Q. Heng, M. S. Sadi, "Surface Modification of Non-Ionic Polyester Fabric into an Anionic Platform for Low Temperature Cationic Basic Dyeing with Improved Colorfastness Properties," Fibers and Polymers, vol. 24, no. 4, pp. 1345-1358, 2023. DOI: 10.1007/s12221-023-00146-3.

[ACM Style]

Nazmun Nahar, Quan Heng, and Mohammad Shak Sadi. 2023. Surface Modification of Non-Ionic Polyester Fabric into an Anionic Platform for Low Temperature Cationic Basic Dyeing with Improved Colorfastness Properties. Fibers and Polymers, 24, 4, (2023), 1345-1358. DOI: 10.1007/s12221-023-00146-3.

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pISSN : 1229 - 9197
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