Investigation of the Dyeing Behavior and Color Performance Properties of New Biodegradable/Compostable Poly(ethylene terephthalate) (PET) Fibers 


Vol. 26,  No. 7, pp. 2977-2991, Jul.  2025
10.1007/s12221-025-00967-4


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  Abstract

Due to the rising environmental and ecological concerns globally, efforts are being intensified to recycle PET fibers and enhance their biodegradability. In this experimental study, the dyeing behavior and color performances of emerging biodegradable/compostable and recycled PET were assessed and compared with regular virgin PET. Three series of dyeing experiments were conducted: the first to identify V-values for understanding the suitable dyeing rate and temperature, the second to compare dyeing under sustainable and traditional auxiliaries, and the third to assess the effects of dye types on dyeability and color properties of these new PET fibers. Conventional dyeing conditions were used in the latter two series to ensure compatibility with existing systems and proper comparison. The V-value results indicate that compostable PET and biodegradable PET-3, with a higher V-value, can be dyed efficiently at lower temperatures and in shorter times, offering greater energy efficiency. According to the results, biodegradable and compostable PET materials can be effectively dyed with current methods and conditions, making them promising eco-friendly alternatives to conventional PETs. Furthermore, sustainable dyeing techniques using bio-based auxiliaries offer comparable color strength and fastness to traditional methods, especially for biodegradable and compostable PET, underscoring their environmental benefits. In this context, these biodegradable/compostable PET fibers are considered viable and promising alternatives to conventional PET fibers. The study provides valuable insight into the development of a more sustainable and optimum dyeing process effective for these new biodegradable/compostable PET materials.

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  Cite this article

[IEEE Style]

Y. Jagwani, M. T. Abate, M. Rauch, A. Friedrich, "Investigation of the Dyeing Behavior and Color Performance Properties of New Biodegradable/Compostable Poly(ethylene terephthalate) (PET) Fibers," Fibers and Polymers, vol. 26, no. 7, pp. 2977-2991, 2025. DOI: 10.1007/s12221-025-00967-4.

[ACM Style]

Yash Jagwani, Molla Tadesse Abate, Michael Rauch, and Andreas Friedrich. 2025. Investigation of the Dyeing Behavior and Color Performance Properties of New Biodegradable/Compostable Poly(ethylene terephthalate) (PET) Fibers. Fibers and Polymers, 26, 7, (2025), 2977-2991. DOI: 10.1007/s12221-025-00967-4.

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pISSN : 1229 - 9197
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