Title: Carbon footprint and oxygen footprint assessment of hemp yarn

Authors: Junran Liu; Xin Li; Ying Zhang; Lirong Sun; Qianwen Huang; Lisha Zhu; Laili Wang

Addresses: Clothing Engineering Research Center of Zhejiang Province, Zhejiang Sci-Tech University, 310018, Hangzhou, Zhejiang, China; School of Fashion Design and Engineering, Zhejiang Sci-Tech University, 310018, Hangzhou, Zhejiang, China ' Clothing Engineering Research Center of Zhejiang Province, Zhejiang Sci-Tech University, 310018, Hangzhou, Zhejiang, China; School of Fashion Design and Engineering, Zhejiang Sci-Tech University, 310018, Hangzhou, Zhejiang, China ' Clothing Engineering Research Center of Zhejiang Province, Zhejiang Sci-Tech University, 310018, Hangzhou, Zhejiang, China; School of Fashion Design and Engineering, Zhejiang Sci-Tech University, 310018, Hangzhou, Zhejiang, China ' Office for Social Responsibility of China National Textile and Apparel Council, 100027, Beijing, China ' Clothing Engineering Research Center of Zhejiang Province, Zhejiang Sci-Tech University, 310018, Hangzhou, Zhejiang, China; School of Fashion Design and Engineering, Zhejiang Sci-Tech University, 310018, Hangzhou, Zhejiang, China ' College of Textile Science and Engineering (International Institute of Silk), Zhejiang Sci-Tech University, 310018, Hangzhou, Zhejiang, China ' Zhejiang Provincial Research Center of Clothing Engineering Technology, School of Fashion Design and Engineering, Zhejiang Sci-Tech University, 310018 Hangzhou, Zhejiang, China; Zhejiang Academy of Ecological Civilisation, 310018 Hangzhou, Zhejiang, China; Zhejiang Provincial Innovation Center of Advanced Textile Technology, 312000 Shaoxing, Zhejiang, China

Abstract: Oxygen and carbon dioxide play crucial roles in the earth's environment and human health. However, for the textile industry, few studies focus on the carbon footprint and oxygen footprint of plant-derived fibres. As a result, in this study, a method was presented for calculating the oxygen production and consumption from hemp cultivation phase to yarn production phase. The results indicate that spinning phase contributes the greatest carbon emission (86.4%) and oxygen consumption (88.01%), followed by the crop cultivation phase (8.94% and 8.27%) and fibre extraction phase (4.62% and 3.72%). Additionally, the crop cultivation phase has positive impacts to mitigating climate change by sequestrating carbon (4.0733 kg CO₂) and releasing oxygen (2.9624 kg O₂). The results obtained in this study can provide methodological and technical guidance for estimating carbon footprint and oxygen footprint transferred from plant-derived fibre crops to textile products.

Keywords: carbon footprint; oxygen footprint; hemp; bast fibre; plant-derived fibre; textile industry.

DOI: 10.1504/IJGW.2024.137161

International Journal of Global Warming, 2024 Vol.32 No.4, pp.361 - 373

Received: 26 Jan 2023
Accepted: 29 May 2023
Published online: 04 Mar 2024 *

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