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Volume 15
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Article

Novel Biomass-Based Polymeric Dyes: Preparation and Performance Assessment in the Dyeing of Biomass-Derived Aldehyde-Tanned Leather

by
Wei Ding
1,*,
Yinuo Zhang
2,
Shuolin Li
1,
Javier Remón
3,
Kanglei Wang
1,
Lihong Bao
2 and
Xiaoyan Pang
1,*
1
China Leather and Footwear Research Institute Co., Ltd., Beijing 100015, China
2
School of Materials Design and Engineering, Beijing Institute of Fashion Technology, Beijing 100029, China
3
Thermochemical Processes Group, Aragón Institute for Engineering Research (I3A), University of Zaragoza, 50018 Zaragoza, Spain
*
Authors to whom correspondence should be addressed.
Polymers 2023, 15(10), 2300; https://doi.org/10.3390/polym15102300
Submission received: 5 April 2023 / Revised: 10 May 2023 / Accepted: 12 May 2023 / Published: 13 May 2023
(This article belongs to the Special Issue Biomass-Derived Polymers: Synthesis, Structure-Property Relationship and Applications)
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Abstract

High-performance chrome-free leather production is currently one of the most concerning needs to warrant the sustainable development of the leather industry due to the serious chrome pollution. Driven by these research challenges, this work explores using biobased polymeric dyes (BPDs) based on dialdehyde starch and reactive small-molecule dye (reactive red 180, RD-180) as novel dyeing agents for leather tanned using a chrome-free, biomass-derived aldehyde tanning agent (BAT). FTIR, 1H NMR, XPS, and UV-visible spectrometry analyses indicated that a Schiff base structure was generated between the aldehyde group of dialdehyde starch (DST) and the amino group of RD-180, resulting in the successful load of RD-180 on DST to produce BPD. The BPD could first penetrate the BAT-tanned leather efficiently and then be deposited on the leather matrix, thus exhibiting a high uptake ratio. Compared with the crust leathers prepared using a conventional anionic dye (CAD), dyeing, and RD-180 dyeing, the BPD-dyed crust leather not only had better coloring uniformity and fastness but it also showed a higher tensile strength, elongation at break, and fullness. These data suggest that BPD has the potential to be used as a novel sustainable polymeric dye for the high-performance dyeing of organically tanned chrome-free leather, which is paramount to ensuring and promoting the sustainable development of the leather industry.
Keywords: dialdehyde starch; reactive red dye; biomass-derived aldehyde; leather tanning; dyeing capabilities; physical properties dialdehyde starch; reactive red dye; biomass-derived aldehyde; leather tanning; dyeing capabilities; physical properties
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MDPI and ACS Style

Ding, W.; Zhang, Y.; Li, S.; Remón, J.; Wang, K.; Bao, L.; Pang, X. Novel Biomass-Based Polymeric Dyes: Preparation and Performance Assessment in the Dyeing of Biomass-Derived Aldehyde-Tanned Leather. Polymers 2023, 15, 2300. https://doi.org/10.3390/polym15102300

AMA Style

Ding W, Zhang Y, Li S, Remón J, Wang K, Bao L, Pang X. Novel Biomass-Based Polymeric Dyes: Preparation and Performance Assessment in the Dyeing of Biomass-Derived Aldehyde-Tanned Leather. Polymers. 2023; 15(10):2300. https://doi.org/10.3390/polym15102300

Chicago/Turabian Style

Ding, Wei, Yinuo Zhang, Shuolin Li, Javier Remón, Kanglei Wang, Lihong Bao, and Xiaoyan Pang. 2023. "Novel Biomass-Based Polymeric Dyes: Preparation and Performance Assessment in the Dyeing of Biomass-Derived Aldehyde-Tanned Leather" Polymers 15, no. 10: 2300. https://doi.org/10.3390/polym15102300

APA Style

Ding, W., Zhang, Y., Li, S., Remón, J., Wang, K., Bao, L., & Pang, X. (2023). Novel Biomass-Based Polymeric Dyes: Preparation and Performance Assessment in the Dyeing of Biomass-Derived Aldehyde-Tanned Leather. Polymers, 15(10), 2300. https://doi.org/10.3390/polym15102300

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