Evaluation and improvement of the oxidative stability of leather fatliquors

Abstract Fatliquor oxidation may give leather unpleasant odor, and excessive amounts of Cr(VI) and volatile organic compounds. The accurate evaluation and improvement of the oxidative stability of fatliquors are of great significance to high-quality leather manufacturing. We proposed a set of practi...

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Autores principales:	Yue Yu, Min Huang, Jiaqi Lv, Yunhang Zeng, Qingyong Sun, Bi Shi
Formato:	article
Lenguaje:	EN
Publicado:	SpringerOpen 2021
Materias:	Leather fatliquor Oxidative stability Natural oil Modification Antioxidant Chemical technology TP1-1185
Acceso en línea:	https://doaj.org/article/c188a52d653f439f9334a00521deba8c
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spelling	oai:doaj.org-article:c188a52d653f439f9334a00521deba8c2021-11-21T12:13:58ZEvaluation and improvement of the oxidative stability of leather fatliquors10.1186/s42825-021-00070-32524-7859https://doaj.org/article/c188a52d653f439f9334a00521deba8c2021-11-01T00:00:00Zhttps://doi.org/10.1186/s42825-021-00070-3https://doaj.org/toc/2524-7859Abstract Fatliquor oxidation may give leather unpleasant odor, and excessive amounts of Cr(VI) and volatile organic compounds. The accurate evaluation and improvement of the oxidative stability of fatliquors are of great significance to high-quality leather manufacturing. We proposed a set of practical methods for evaluating the oxidative stability of fatliquors on the basis of oxidation induction time, change in iodine value (∆ IV), and change in acid value (∆ AV) under accelerated oxidation conditions (at 100 °C with 10 L/h of air). Oxidation induction time is a highly sensitive marker for quantifying the oxidative stability of fatliquors, and ∆ IV and ∆ AV that are low cost and easy to operate are useful in evaluating the oxidative stability of fatliquors when the oxidation induction time is less than 22 h. The number of double bonds in fatliquors is an important factor affecting oxidative stability. The sulfation modification of fatliquors that greatly reduces double bonds and the addition of antioxidants, especially butylated hydroxyanisole and butylated hydroxytoluene, markedly improve oxidative stability of fatliquors.Yue YuMin HuangJiaqi LvYunhang ZengQingyong SunBi ShiSpringerOpenarticleLeather fatliquorOxidative stabilityNatural oilModificationAntioxidantChemical technologyTP1-1185ENJournal of Leather Science and Engineering, Vol 3, Iss 1, Pp 1-10 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Leather fatliquor Oxidative stability Natural oil Modification Antioxidant Chemical technology TP1-1185
spellingShingle	Leather fatliquor Oxidative stability Natural oil Modification Antioxidant Chemical technology TP1-1185 Yue Yu Min Huang Jiaqi Lv Yunhang Zeng Qingyong Sun Bi Shi Evaluation and improvement of the oxidative stability of leather fatliquors
description	Abstract Fatliquor oxidation may give leather unpleasant odor, and excessive amounts of Cr(VI) and volatile organic compounds. The accurate evaluation and improvement of the oxidative stability of fatliquors are of great significance to high-quality leather manufacturing. We proposed a set of practical methods for evaluating the oxidative stability of fatliquors on the basis of oxidation induction time, change in iodine value (∆ IV), and change in acid value (∆ AV) under accelerated oxidation conditions (at 100 °C with 10 L/h of air). Oxidation induction time is a highly sensitive marker for quantifying the oxidative stability of fatliquors, and ∆ IV and ∆ AV that are low cost and easy to operate are useful in evaluating the oxidative stability of fatliquors when the oxidation induction time is less than 22 h. The number of double bonds in fatliquors is an important factor affecting oxidative stability. The sulfation modification of fatliquors that greatly reduces double bonds and the addition of antioxidants, especially butylated hydroxyanisole and butylated hydroxytoluene, markedly improve oxidative stability of fatliquors.
format	article
author	Yue Yu Min Huang Jiaqi Lv Yunhang Zeng Qingyong Sun Bi Shi
author_facet	Yue Yu Min Huang Jiaqi Lv Yunhang Zeng Qingyong Sun Bi Shi
author_sort	Yue Yu
title	Evaluation and improvement of the oxidative stability of leather fatliquors
title_short	Evaluation and improvement of the oxidative stability of leather fatliquors
title_full	Evaluation and improvement of the oxidative stability of leather fatliquors
title_fullStr	Evaluation and improvement of the oxidative stability of leather fatliquors
title_full_unstemmed	Evaluation and improvement of the oxidative stability of leather fatliquors
title_sort	evaluation and improvement of the oxidative stability of leather fatliquors
publisher	SpringerOpen
publishDate	2021
url	https://doaj.org/article/c188a52d653f439f9334a00521deba8c
work_keys_str_mv	AT yueyu evaluationandimprovementoftheoxidativestabilityofleatherfatliquors AT minhuang evaluationandimprovementoftheoxidativestabilityofleatherfatliquors AT jiaqilv evaluationandimprovementoftheoxidativestabilityofleatherfatliquors AT yunhangzeng evaluationandimprovementoftheoxidativestabilityofleatherfatliquors AT qingyongsun evaluationandimprovementoftheoxidativestabilityofleatherfatliquors AT bishi evaluationandimprovementoftheoxidativestabilityofleatherfatliquors
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Evaluation and improvement of the oxidative stability of leather fatliquors

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