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Volume 13
Issue 23
10.3390/ma13235365
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Article

In Situ Synthesis of a Double-Layer Chitosan Coating on Cotton Fabric to Improve the Color Fastness of Sodium Copper Chlorophyllin

by
Zhong Zhao
1,2,
Chris Hurren
1,2,
Mingwen Zhang
1,
Liming Zhou
3,
Jihong Wu
2,* and
Lu Sun
1,2,*
1
Institute for Frontier Materials, Deakin University, Geelong 3220, Australia
2
School of Textile Science and Engineering, Wuhan Textile University, Wuhan 430073, China
3
R&D Center, Guangdong Esquel Co. Ltd. Group, Foshan 528500, China
*
Authors to whom correspondence should be addressed.
Materials 2020, 13(23), 5365; https://doi.org/10.3390/ma13235365
Submission received: 6 November 2020 / Revised: 21 November 2020 / Accepted: 22 November 2020 / Published: 26 November 2020
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Abstract

Natural dye’s poor affinity for cotton and poor fastness properties still hinder its applications in the textile industry. In this study, a doubled-layered chitosan coating was cured on cotton fabric to serve as bio-mordant and form a protective layer on it. Under the optimal treatment conditions, the maximum qe (adsorption amount) of the natural dye sodium copper chlorophyllin (SCC) calculated from the Langmuir isothermal model was raised from 4.5 g/kg to 19.8 g/kg. The dye uptake of the treated fabric was improved from 22.7% to 96.4% at 1% o.w.f. dye concentration. By a second chitosan layer cured on the dyed fabric via the cross-linking method, the wash fastness of the cotton fabric dyed with SCC can be improved from 3 to 5 (ISO 105 C-06). The natural source of the biopolymer material, chitosan, and its ability to biodegrade at end of life met with the initial objective of green manufacturing in applying natural dyes and natural materials to the textile industry.
Keywords: chitosan; cross-linking; sodium copper chlorophyllin; bio-mordant chitosan; cross-linking; sodium copper chlorophyllin; bio-mordant

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MDPI and ACS Style

Zhao, Z.; Hurren, C.; Zhang, M.; Zhou, L.; Wu, J.; Sun, L. In Situ Synthesis of a Double-Layer Chitosan Coating on Cotton Fabric to Improve the Color Fastness of Sodium Copper Chlorophyllin. Materials 2020, 13, 5365. https://doi.org/10.3390/ma13235365

AMA Style

Zhao Z, Hurren C, Zhang M, Zhou L, Wu J, Sun L. In Situ Synthesis of a Double-Layer Chitosan Coating on Cotton Fabric to Improve the Color Fastness of Sodium Copper Chlorophyllin. Materials. 2020; 13(23):5365. https://doi.org/10.3390/ma13235365

Chicago/Turabian Style

Zhao, Zhong, Chris Hurren, Mingwen Zhang, Liming Zhou, Jihong Wu, and Lu Sun. 2020. "In Situ Synthesis of a Double-Layer Chitosan Coating on Cotton Fabric to Improve the Color Fastness of Sodium Copper Chlorophyllin" Materials 13, no. 23: 5365. https://doi.org/10.3390/ma13235365

APA Style

Zhao, Z., Hurren, C., Zhang, M., Zhou, L., Wu, J., & Sun, L. (2020). In Situ Synthesis of a Double-Layer Chitosan Coating on Cotton Fabric to Improve the Color Fastness of Sodium Copper Chlorophyllin. Materials, 13(23), 5365. https://doi.org/10.3390/ma13235365

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